JP4377821B2 - Endoscope electrical connector, endoscope, and assembly method of electrical connector - Google Patents

Description

  The present invention relates to an endoscope electrical connector, an endoscope, and an electrical connector assembling method for connecting an endoscope to an external device used in combination with the endoscope.

  Generally, when electrically connecting various electronic devices, an electrical connector to which a plurality of cable lines are connected is used. An electronic endoscope apparatus, which is an electronic device in the medical field, includes an electronic endoscope having a built-in solid-state imaging device (hereinafter simply referred to as a CCD) that is inserted into a body cavity and images the inside of the body cavity, and an electronic endoscope. A video processor as an external device that performs predetermined signal processing on the captured image signal to generate an endoscope video signal, and transmits and receives various signals and an electric connector for supplying driving power It is supposed to be connected by.

  An electrical connector used for an electronic endoscope apparatus is proposed in Patent Document 1, for example. The electrical connector proposed in Patent Document 1 will be described with reference to FIGS. 10 and 11.

  First, the concept of the configuration of the electronic endoscope apparatus will be described with reference to FIG. The electronic endoscope apparatus 101 includes an electronic endoscope 102, a light source device 103, a video processor 106, and a monitor 107.

  The electronic endoscope 102 includes a flexible elongated insertion portion 108 that is inserted into a body cavity, an operation portion 109 that is provided on the proximal end side of the insertion portion 108, and is operated by a surgeon. It consists of a universal cord 110 as an extended connection cable. The insertion unit 108, the operation unit 109, and the universal cord 110 have a light guide 111 and a cable wire 112 built therein. One end of the light guide 111 is disposed at the distal end of the insertion portion 108, and the other end is connected to the light source device 103 by a scope connector 113 provided at the proximal end of the universal cord 110. One end of the cable line 112 is connected to a CCD 115 arranged at the focal position of the objective lens 114 provided at the distal end of the insertion portion 108, a switch to be described later, and the other end to an electric connector 120 provided on the scope connector 113. It is connected.

  Although not shown, the operation unit 109 is a bending operation knob for bending the bending portion provided on the distal end side of the insertion unit 108, and a treatment for inserting a treatment tool into the treatment tool channel in the insertion unit 108. An image processing system switch such as a release switch for operating a moving image / still image, a freeze switch, an enhancement switch, and the like is provided by controlling the tool insertion port and driving of the CCD 115.

  In addition, an air supply / water supply button for supplying and supplying air to the surface of the objective lens 114 at the distal end of the insertion unit 108, a suction button for sucking dirt and water in the body cavity, and a cleaning water for cleaning the body cavity are supplied to the operation unit 109. A forward water supply button is provided. An image processing system switch provided in the operation unit 109 is connected to the video processor 106 via an electrical connector 120 provided in the scope connector 113 of the universal cord 110.

  The air / water pump for performing the above-described air / water feeding is provided in the light source device 103, and the suction pump for performing suction and the forward water pump for performing forward water feeding are the light source device 103 and Are provided separately, and are configured to perform the functions of air supply / water supply, suction, and forward water supply via these pumps.

  The light source device 103 includes a light source lamp 116, a condensing lens 117 that condenses the illumination light from the light source lamp 116 and enters the input end of the light guide 111 disposed on the scope connector 113, and a light source lamp (not shown). The lighting and dimming control circuit 116 and the above-described pump and the like are provided.

  The video processor 106 performs processing on the drive circuit 104 that controls the driving of the CCD 115 provided at the distal end of the insertion portion 108 of the electronic endoscope 102 and the imaging signal photoelectrically converted by the CCD 115 to perform an endoscope. A signal processing device having a signal processing circuit 105 that generates a video signal (hereinafter also referred to as a signal processing device). In some cases, the light source device 103 and the video processor 106 are integrally formed.

  The monitor 107 displays an endoscopic image corresponding to the video signal processed by the signal processing circuit 105 of the video processor 106.

  As described above, the scope connector 113 provided at the base end of the universal cord 110 connects the incident end of the light guide 111 to the light source device 103 and the other end of the cable line 112 of the electronic endoscope 102. Electrical connector 120.

  The electrical connector 120 is coupled to a connection plug 122 connected to one end of a connection cord 121 including a plurality of cable lines for connecting to the video processor 106 as an external device used in combination with the electronic endoscope 102. It has become.

  A connection plug 123 similar to the connection plug 122 is provided at the other end of the connection cord 121. The connection plug 123 is coupled to an electrical connector 124 provided in the video processor 106. The electrical connector 124 provided in the video processor 106 has a configuration substantially similar to that of the electrical connector 120 described above.

  That is, the electrical connector 120 is provided with a signal line for transmission / reception such as a CCD drive control signal, an imaging signal, and a drive power source for connecting the CCD 115 provided at the distal end of the insertion unit 108 and the video processor 106, and the operation unit 109. A signal line for connecting the image processing system switch and the video processor 106, a cable line 112 including a signal line for connecting the light source device 103 and the video processor 106 and controlling the light control of the light source device 103 from the video processor 106, and the like. The connection plug 122 of the connection cord 121 for connecting to the video processor 106 is coupled.

  The electrical connector 120 provided in the scope connector 113 will be described with reference to FIG. Note that the electrical connector 124 provided in the video processor 106 has substantially the same configuration as that of the electrical connector 120 of the scope connector 113 although there is a difference in pin configuration, watertight structure, and the like.

  The electrical connector 120 is provided with a flange 132 on the outer periphery of a cylindrical base 131 for attaching to the scope connector 113 with screws. A cylindrical insulating frame 135 is fitted into the inner periphery of the base 131, and a cylindrical guide member 136 is fitted inside the cylindrical insulating frame 135. A cover member 138 is formed on a locking projection provided on the inner periphery of the guide member 136 on the rear end side, and an insulator 139 and a substrate 141 are overlapped on the back surface of the cover member 138 and fixed by a substrate stopper 142. The guide member 136 is positioned and fixed by positioning pins 143 engaged with the base 131 and the cylindrical insulating frame 135. A watertight packing is interposed between the outer periphery of the substrate stopper 142 and the inner periphery of the rear end of the base 131. A cylindrical shield frame 145 is screwed to the rear end of the substrate stopper 142. A shield member 146 provided with an opening through which the cable line 112 is inserted is fixedly attached to the rear end of the shield frame 145. The cable wire 112 is inserted into the opening of the shield member 146 and is fixed by a cable fastening plate 148 and a screw 149 that sandwich the cable wire 112 by the cushion member 147.

  The cover member 138, the insulator 139, and the substrate 141 provided inside the rear end of the guide member 136 are provided with a single wire pin 152 that is a plurality of single wire terminals, a coaxial pin 154 that is a plurality of coaxial terminals, and a post pin 153, respectively. It has been. A single wire 155 constituting the cable wire 112 is connected to the single wire pin 152. The coaxial pin 154 is connected to the core wire and the shield wire of the coaxial electric wire 156 constituting the cable wire 112. In some cases, the core wire of the coaxial cable 156 is connected to a single wire pin 152 and the shield wire is connected to another single wire pin 152. The post pin 153 is a pin for releasing static electricity generated when a worker's hand touches.

  Further, the cover member 138, the insulator 139, and the substrate 141 are provided with a vent hole 161 penetrating therethrough. The ventilation hole 161 is attached with a moisture-permeable waterproof sheet that allows gas to pass but not liquid.

  The single-wire electric wire 155 connected to the single-wire pin 152 has an insulating coating around the core wire. The coaxial electric wire 156 connected to the coaxial pin 154 is a core wire with insulation coating, a shield wire disposed on the outer periphery of the insulation coating of the core wire, and further coated with insulation coating. The single wire pin 152 is basically formed of only a pin to which the core wire of the single wire 155 is connected. The coaxial pin 154 includes a core wire portion and a shield portion that are insulated from each other and to which the core wire and the shield wire of the coaxial electric wire 156 are connected. As described above, the core wire of the coaxial cable 156 may be connected to a single wire pin 152 and the shield wire may be connected to another single wire pin 152 connected to the ground pattern.

  The connection plug 122 of the connection cord 121 attached to the electrical connector 120 having such a configuration is attached to the inside of the guide member 136 of the base 131 of the electrical connector 120 and inserted into the single wire pin 152 and the coaxial pin 154, respectively. A pin receiver is provided.

By connecting the connection plug 122 of the connection cord 121 connected to the video processor 106 to the electrical connector 120 provided in the scope connector 113, the electronic endoscope 102 and the video processor 106 are electrically connected. Then, drive power supply to the CCD 115, transmission and reception of imaging signals, control signals for various image processing systems, and the like are performed. Further, the light source device 103 and the video processor 106 are also electrically connected, and light control from the video processor 106 is performed.
Japanese Patent No. 2902654

  In the electronic endoscope 102 using the electrical connector 120 proposed in Patent Document 1 described with reference to FIGS. 10 and 11, the cable wire 112 is coaxial with the single wire pin 152 when parts are replaced for repair or the like. It is necessary to disconnect the pin 154 from the pin 154 and perform a necessary treatment such as replacement of parts, and then connect the end of the cable wire 112 to the single wire pin 152 and the coaxial pin 154 again.

  For example, when checking the operation of the imaging unit having a function related to imaging of the electronic endoscope 102 including the CCD 115 due to an image defect or the like, the cable wire 112 is disconnected from the single wire pin 152 and the coaxial pin 154 of the electrical connector 120. Then, the cable wire 112 separated from the single wire pin 152 and the coaxial pin 154 is connected to the inspection jig of the image pickup unit, and the operation check of the image pickup unit and the defective portion are confirmed by the inspection jig. When a defective part is confirmed by the inspection jig of the image pickup unit, the cable line 112 is connected to the single wire pin 152 and the coaxial pin 154 of the electrical connector 120 again after replacement of the defective part.

  Further, in the case of investigating the malfunction of the image processing system switches provided in the operation unit 109, the cable wire 112 is connected to the single wire pin 152 of the electrical connector 120 and the coaxial pin similarly to the operation check of the imaging unit including the CCD 115 described above. The cable wire 112 separated from the single pin 152 and the coaxial pin 154 is attached to the inspection jig for the switches, and the operation check of the switches and the defective part are confirmed by the switch inspection jig, and the defective part is replaced. After the repair, the cable wire 112 is connected to the single wire pin 152 and the coaxial pin 154 of the electrical connector 120 again.

  In addition to replacing and repairing electrical parts such as defective images and defective switches, when it becomes necessary to replace the exterior of the universal cord 110 or the exterior of the insertion portion 108, the cable wire 112 is connected to the electrical connector 120. The single wire pin 152 and the coaxial pin 154 are separated.

  For example, when the exterior of the universal cord 110 is aged due to aging and is replaced with a new exterior, the cable wire 112 is disconnected from the single wire pin 152 and the coaxial pin 154 of the electrical connector 120, and the cable wire 112 is connected to the universal cord from the operation unit 109 side. Pull out from 110 exterior. The drawn cable line 112 is inserted again into the exterior of the new universal cord 110 and reconnected to the single wire pin 152 and the coaxial pin 154 of the electrical connector 120.

  In addition, when the exterior of the insertion portion 108 is aged due to aging and is replaced with a new exterior, the cable wire 112 is disconnected from the single wire pin 152 and the coaxial pin 154 of the electrical connector 120. The disconnected cable line 112 is pulled from the operation unit 109 side and pulled out from the exterior of the universal cord 110. The pulled cable wire 112 is pulled from the distal end side of the insertion portion 108 and pulled out from the exterior of the operation portion 109 and the insertion portion 108. The cable wire 112 pulled out from the operation unit 109 and the insertion unit 108 is reinserted into the exterior of the new insertion unit 108 and reinserted into the operation unit 109 and the universal cord 110, and then the single wire pin of the electrical connector 120. 152 and the coaxial pin 154 are connected again.

  That is, electrical replacement repairs such as confirmation of operation of any of the imaging units and switches of the electronic endoscope 102 connected to the electrical connector 120 with the cable line 112 and confirmation of a defective portion are performed on the electrical connector 120. It takes a lot of work time to cut the connected cable line 112, to connect the cut cable line 112 to the inspection jig, and to reconnect to the electrical connector 120 after confirmation, and to perform complicated work. In addition, the exterior replacement of the insertion portion 108 and the universal cord 112 is performed by cutting the cable wire 112 connected to the electrical connector 120, pulling the cut cable wire 112 from the universal cord 112 and the exterior of the insertion portion 108, and new Reinsertion of the insertion portion 108 and the universal cord 112 into the exterior, reconnection to the electrical connector 120, complicated work, and much work time are required.

  Further, since the single wire pins 152 and the coaxial pins 154 provided in the electrical connector 120 are provided within a limited area, the intervals between the single wire pins 152 and the coaxial pins 154 are relatively narrow. . Since the distance between each of the single wire pin 152 and the coaxial pin 154 is narrow, only the cable line 112 connected to the image pickup unit is disconnected from the single wire pin 152 and the coaxial pin 154 in the case of checking the operation of the image pickup unit and investigating the failure, or It becomes difficult to cut only the cable wire 112 connected to the switches from the single wire pins 152 and the coaxial pins 154 in order to confirm the operation of the switches and investigate the troubled part. For this reason, at the time of operation check and trouble investigation, all the cable lines 112 of the imaging unit and the switches connected to the electrical connector 120 must be disconnected, and the pin interval is again set after the operation check and trouble investigation. The complicated work of connecting the narrow single wire pin 152 and the coaxial pin 154 is forced.

  Furthermore, the single wire pin 152 and the coaxial pin 154 of the electrical connector 120 are provided perpendicular to the cover member 138, the insulator 139, and the substrate 141 in the direction coaxial with the base 131. For this reason, when the cable wire 112 is connected to the single wire pin 152 and the coaxial pin 154, the electrical connector 120 is installed so that the single wire pin 152 and the coaxial pin 154 are perpendicular to the work table. The cable wire 112 is coaxially connected to the single wire pin 152 and the coaxial pin 154 to the vertical single wire pin 152 and the coaxial pin 154. That is, the cable wire 112 is maintained in a coaxial state with respect to the single wire pin 152 or the coaxial pin 154 and soldered, and then bent from the vicinity of the soldered portion and bent to the adjacent single wire pin 152 or the coaxial pin 154. Care is taken so as not to hinder the soldering of 112, or a jig for holding the cable wire 112 is required. For this reason, much attention is paid to the work of connecting the cable wire 112 to the plurality of single wire pins 152 and the coaxial pins 154, and a long time work is forced.

  In addition, an electronic component such as a diode or a resistor may be placed on a part of the single wire pin 152 and the coaxial pin 154 between the single wire 155 and the coaxial wire 156 of the cable line 112 and soldered. In this case, one lead wire of the electronic component connected to the single wire pin 152 or the coaxial pin 154 is soldered coaxially to the single wire pin 152 or the coaxial pin 154, and the cable wire 112 is coaxially connected to the other lead wire of the electronic component. In order to perform soldering to the state, care must be taken to prevent the bending of the electronic component and the cable line 112, which makes the connection work more complicated and longer.

  As described above, the plurality of electric wires of the cable wire 112 connected to the narrowly spaced single wire pin and the coaxial pin are cut off to check and repair the operation of the imaging unit and the switches. The repair work for connecting the wire to the single wire pin and the coaxial pin directly or via an electronic component was very complicated and required a lot of time to be taken carefully.

  Further, for such operation check and trouble investigation, the tip of the cable wire 112 cut off from the single wire pin 152 and the coaxial pin 154 of the electrical connector 120 is stripped of the insulation coating to be connected to the inspection jig. Solder to. The end of the cable wire 112 that has been checked for operation by the inspection jig and investigated for the defective portion is cut to release the connection with the inspection jig. The tip of the cable wire 112 that has been disconnected from the inspection jig is stripped and soldered in order to reconnect the single wire pin 152 and the coaxial pin 154 of the electrical connector 120. For this reason, the length of the cable line 112 is shortened because the tip of the cable line 112 is cut each time the operation check or the inspection of the defective part is performed. If the total length of the cable line 112 is shortened, it will be difficult to confirm the operation, investigate the problem, and reconnect the cable line 112, and it will take a lot of time.

  The present invention has been made in view of such circumstances, and it is possible to simplify operations such as operation confirmation and repair, and to shorten the work time of the endoscope, an electrical connector for an endoscope, and an electrical connector The purpose is to provide an assembly method.

An electrical connector for an endoscope according to the present invention is an endoscope provided for connecting a connection cable extending from an operation section of an endoscope to an external device used in combination with the endoscope. An electrical connector having a first substrate portion and a second substrate portion, wherein the first substrate portion and the second substrate portion are bent so that at least a part of their back surfaces face each other. A substrate constituted by a single flexible substrate to be formed and a terminal from the external device are electrically connected, and the substrate comprises the front surface of the first substrate portion and the back surface of the second substrate portion. A connecting member erected on one surface side and a cable wire connector connected to an end of the cable wire extending from the insertion portion and the operation portion side of the endoscope are detachably connected, and the first From the back surface of the first substrate portion and the front surface of the second substrate portion. Characterized by comprising a connector which is provided on the side of the other surface of the substrate.

The connecting member of the electrical connector of the endoscope according to the present invention is a single wire terminal member that is inserted into a hole formed in the first substrate portion and soldered to a land provided in the first substrate portion. A first conductor that is inserted through a hole formed in the first substrate portion and soldered to a land provided in the second substrate portion, and substantially coaxial with the first conductor. And a coaxial terminal member constituted by a second conductor that is disposed and soldered to a land provided on the first substrate portion .

The single wire terminal member of the electrical connector of the endoscope of the present invention is inserted into a hole formed in the first substrate portion and protrudes to the back side of the first substrate portion, and the protrusion And a step portion provided on the one surface side, having an outer diameter larger than an inner diameter of a hole formed in the first substrate portion, and contacting a surface of the first substrate portion. The first conductor of the coaxial terminal member is inserted into a hole formed in the second substrate portion and protrudes toward the other surface, and the one surface beyond the protrusion. And a step portion having an outer diameter larger than an inner diameter of a hole portion formed in the second substrate portion and abutted with a back surface of the second substrate portion. To do.
The coaxial terminal member of the electrical connector of the endoscope according to the present invention is disposed on an outer edge of the substrate.

An endoscope according to the present invention includes an insertion portion that is inserted into a subject, an operation portion that is provided on the proximal end side of the insertion portion, and an electrical connector that extends from the operation portion and is connected to an external device. A connection cable provided; a cable wire inserted through the connection cable and extending from the insertion portion and the operation portion side; and a cable wire connector provided at an end of the cable wire, and the electrical connector Has a first substrate portion and a second substrate portion, and is formed by bending so that at least a part of the back surfaces of the first substrate portion and the second substrate portion face each other. One side of the substrate comprising the front surface of the first substrate unit and the back surface of the second substrate unit, wherein the substrate constituted by the flexible substrate and the terminal from the external device are electrically connected A connecting member erected on the Bull line connector is detachably connected, and comprises a, a connector is provided on the side of the other surface of the substrate made of the first rear surface and said second surface of the substrate portion of the substrate portion It is characterized by that.

  The cable line connector of the endoscope according to the present invention includes a cable line connection part to which the cable line is electrically connected, and a connection terminal part to be detachably connected to the connector of the board. And the connection terminal portion is integrally formed using a flexible substrate.

  The cable line connector of the endoscope according to the present invention is formed in a substantially T shape, and a cable line connection part in which a connection land to which a plurality of signal lines of the cable line are connected is formed from the cable line connection part. A connection terminal portion formed so as to extend substantially orthogonally and detachably connected to the connector of the board, and provided at both ends of the cable wire connection portion, and the cable wire connection portion is held in a substantially cylindrical shape. And a holding portion, which are integrally formed using a flexible substrate.

  In the endoscope of the endoscope according to the present invention, the connection terminal portion of the cable line connector is provided with a guide portion for guiding a connection direction of the board to the connector.

  The cable line connector of the endoscope of the present invention is formed in a substantially rectangular shape, a cable line connection part to which the cable line is connected, a connection terminal part to be detachably connected to the connector of the board, and this connection And a retaining portion formed around the terminal portion, which are integrally formed using a flexible substrate.

The electrical connector assembling method of the present invention includes a first substrate portion and a second substrate portion, and at least a part of the back surfaces of the first substrate portion and the second substrate portion face each other. A terminal from an external device that uses the endoscope in combination with an endoscope is electrically connected to a board constituted by a single flexible board that can be bent to a connection cable and a connection cable extending from the operation section of the endoscope. are connected, a connection member which is erected on the side of one surface of the substrate made of the surface and the back surface of the second substrate portion of said first substrate portion, the insertion portion of the endoscope operation portion A cable line connector provided at the end of the cable line extending from the side is detachably connected, and the other surface side of the substrate comprising the back surface of the first substrate portion and the surface of the second substrate portion An electrical connector configured with a connector provided on A assembling method, before the Kise' connection member, wherein is inserted from the first surface side of the substrate portion into the hole portion formed in the first substrate portion, provided around the connecting member and the hole A first substrate connecting step for soldering a land, and a back surface of the second substrate portion facing a back surface of the first substrate portion connected in the first substrate connecting step. And at least a part of the connecting member protruding from the first substrate portion is inserted into a hole formed in the second substrate portion, and the land provided around the connecting member and the hole portion; a second substrate portion connecting step of soldering, mounting the cable wire connector in the connector provided on the side of the other surface of the substrate which is soldered at the second substrate portion connecting step And a cable line connector mounting step.

In the first substrate portion connecting step of the method of assembling the electrical connector of the present invention, the said connecting member first inserted into the hole portion of the substrate portion, the soldering of the surrounding land of the hole, the It is characterized in that it is performed in the order of the outer edge direction of the first substrate portion from the central portion of the first substrate portion.

In the electrical connector assembling method of the present invention, the connection member includes a single-wire terminal member and a coaxial terminal member disposed on an outer edge of the substrate, and in the first substrate portion connection step, the hole of the first substrate portion is formed. Soldering between the connecting member inserted into the part and the land around the hole is performed in the order of the single-wire terminal member to the coaxial terminal member of the connecting member.

  An endoscope electrical connector and an endoscope according to the present invention include a connector board having a connector to which a cable wire connector connected to a cable wire from an insertion portion or an operation portion side of the endoscope is attached from an external device. By connecting to the connecting member that is electrically connected to the terminal, the connection to the inspection jig for the operation check of the endoscope and the detection of the defective part can be simply removed from the connector on the connector board. It is possible to check the operation and detect the defective part with simple work.

  In addition, the connection of the connector board to the connection member provided on the electrical connector and the connection of the cable wire to the connector provided on the connector board and the cable line connector can be done in a planar manner, making the connection work easy. Improves efficiency.

  Furthermore, the electrical connector assembling method of the present invention is a soldering operation in which the connection of the connector board to a single wire pin or a coaxial pin, which is a connecting member having a narrow interval between terminals, is performed from the center part of the connector board to the outer edge part. And the work efficiency is improved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  As described above with reference to FIGS. 10 and 11, the electrical connector of the endoscope according to the present invention is a scope at the proximal end of the universal cord 110 as a connection cable extending from the operation unit 109 of the electronic endoscope 102. A connection plug 122 of a connection cord 121 provided on the connector 113 and connected to the video processor 106 as an external device used in combination with the electronic endoscope 102 using the cable portion 112 from the insertion portion 108 and the operation portion 109 is coupled and connected. This corresponds to the electrical connector 120. In the following description, it will be described as the electrical connector 10 of the endoscope of the present invention.

  The configuration of the electrical connector of the endoscope of the present invention will be described with reference to FIG. FIG. 1 is a longitudinal sectional view showing a configuration of an electrical connector of an endoscope according to an embodiment of the present invention.

  An endoscope electrical connector (hereinafter simply referred to as an electrical connector) 10 of the present invention has a cylindrical base 11 to which a connection plug 122 provided at an end of the connection cord 121 is coupled. Is provided. A flange 12 is provided on the outer periphery of the base 11 to be attached to the scope connector 113 with screws or the like. A locking projection 13 is provided at the rear end of the inner periphery of the base 11, and a substantially circular cover member 14 is in contact with the locking projection 13. An insulator 15 formed of an insulating member is disposed on the back surface of the cover member 14, and a substrate 16 is disposed on the back surface of the insulator 15. The cover member 14, the insulator 15, and the substrate 16 are bonded and fixed to each other. The cover member 14, the insulator 15, and the substrate 16 are a single wire pin (hereinafter simply referred to as a single wire pin) 23, a coaxial pin (hereinafter simply referred to as a coaxial pin) 24 as a coaxial terminal, and a post pin. 25 is provided. A packing 17 is interposed between the inner periphery of the base 11 and the outer periphery of the insulator 15, and a packing 18 is interposed between the insulator 15 and the vicinity of the outer periphery of the substrate 16. That is, the cover member 14, the insulator 15, and the substrate 16 are bonded and fixed to the inner periphery of the base 11 through the packings 17 and 18, so that the watertight holding and fixing are performed.

  A cylindrical shield frame 19 formed of a shield member is provided on the outer peripheral surface side of the back surface of the substrate 16. The front end of the shield frame 19 is screwed and fixed to the rear end of the base 11 by using an attachment fixing method such as a screw (not shown) or a male screw provided on the outer periphery of the front end. By screwing and fixing the shield frame 19 to the rear end of the base 11, a ground potential pattern (not shown) provided on the outer periphery of the substrate 16 on the side in contact with the shield frame 19 is in electrical contact with the shield frame 19. And connected to the base 11 via the shield frame 19. That is, the base 11, the ground potential pattern of the substrate 16, and the shield frame 19 become conductive.

  A shield cover 20 formed of a shield member having an opening 20a through which the cable wire 29 is inserted is attached to the rear end of the shield frame 19 with a screw. The cable wire 29 inserted through the opening 20a of the shield lid 20 is fixed by a cable wire retaining plate 21 in which a cushion material 21a attached and fixed by a screw 22 is incorporated.

  The cable line 29 is the same as the cable line 112 described above with reference to FIGS. 10 and 11, and includes a plurality of signal lines built in the scope connector 113 for dimming control of the light source device 103 from the video processor 106. The scope connector signal line 30a, the operation unit signal line 30b including a plurality of signal lines from the image processing system switch provided in the operation unit 109 of the electronic endoscope 102, and the distal end of the insertion unit 108 of the electronic endoscope 102. The insertion portion signal line 30c is composed of a plurality of signal lines from the CCD 115 or the like. The scope connector signal line 30a, the operation part signal line 30b, and the insertion part signal line 30c are composed of a plurality of single-wire electric wires and coaxial electric wires. There are also composite cables in which several single wires and coaxial wires, or a plurality of coaxial wires are bundled together.

  Cable line connectors 28a, 28b, and 28c (in the drawing) formed at the distal ends of the scope connector signal line 30a, the operation part signal line 30b, and the insertion part signal line 30c of the cable line 29 by a flexible substrate according to the present invention to be described later. Are connected to each other.

  On the inner periphery of the base 11, there are a plurality of single-wire pins 23 and a plurality of connection members to which a connection plug 122 of a connection cord 121 from a signal processing device (in this embodiment, a video processor 106) as an external device is connected. The coaxial pin 24 and the single post pin 25 pass through the cover member 14 and the insulator 15 and are connected to the substrate 16. The single wire pin 23, the coaxial pin 24, and the post pin 25 projecting toward the distal end surface side of the cover member 14 are inserted into a pin receiver provided on the connection plug 122 coupled to the inner periphery of the base 11. The post pin 25 is provided so as to protrude longer than the single wire pin 23 and the coaxial pin 24 to the side where the connection plug 122 of the connection cord 121 is coupled, and when the operator's hand touches the inside of the base 11. Before the operator's hand touches the single wire pin 23 and the coaxial pin 24, the operator touches the post pin 25 to release the static electricity of the operator.

  The single wire pin 23, the coaxial pin 24, and the post pin 25 are bonded and fixed to the insulator 15, and the rear end side is inserted into a through hole provided in the substrate 16 and soldered to a land provided around the through hole. Has been.

  A single wire pin 23 and a coaxial pin 24 which are soldered to the substrate 16 and extend to the rear of the substrate 16 are inserted into through holes provided in a connector substrate 26 according to the present invention, which will be described later. It is soldered to lands provided around the hole.

  Although details of the configuration of the connector substrate 26 will be described later, a through hole as a hole portion into which the single wire pin 23 and the coaxial pin 24 are inserted, a soldering land around the through hole, and a scope connector of the cable wire 29 Connector 27a, 27b, 27c to which cable line connectors 28a, 28b, 28c provided at the respective ends of the signal line 30a, the operation part signal line 30b, and the insertion part signal line 30c are attached, the single line pin 23 and the coaxial pin A connection pattern for connecting the 24 lands and the connectors 27a, 27b, and 27c is provided.

  That is, the electrical connector 10 of the present invention mainly includes a base 11 to which a connection plug 122 is coupled, a cover member 14 in the base 11, an insulator 15, and a plurality of single-wire pins 23, coaxial pins 24, and single-wire pins. 23, a through hole through which the coaxial pin 24 is inserted, a land provided around the through hole, a connector board 26 having connectors 27a, 27b, and 27c, and a cable line connector 28a for connecting the cable line 29 to the connector 27 of the connector board 26 , 28b, 28c, a shield frame 19 that covers the connector board 26 and the cable line connector 28, and a shield lid 20 provided on the shield frame 19.

  The configuration of the base 11, the cover member 14, the insulator 15, the substrate 16, the shield frame 19, the shield lid 20, and the like of the electrical connector 10 may be the shape configuration described above with reference to FIG. 11.

  Next, the connector board | substrate 26 provided in the electrical connector 10 of this invention is demonstrated using FIG. 2 and FIG. FIG. 2 is a plan view showing a state in which a connector board is attached in the shield frame of the electrical connector of the endoscope according to the embodiment of the present invention. FIG. 3 shows the electrical connector of the endoscope according to the embodiment of the present invention. FIG. 3A is a plan view on the front surface side, and FIG. 3B is a plan view on the back surface side.

  As shown in FIG. 2, a connector board 26 soldered to a single wire pin 23 (not shown) and a coaxial pin 24 is provided in the shield frame 19 of the electrical connector 10. The connector board 26 is formed of a single flexible board, and has a substantially circular first board portion 26a to which a shield part of a single wire pin 23 (not shown) and a coaxial pin 24 is mainly connected, and a cable wire 29 mainly. A second board portion 26b having a substantially circular shape to which the connector 27 to which the cable wire connector 28 provided at the tip of each of the signal wires 30a to 30c is attached and the core wire portion of the coaxial pin 24 are connected to each other; It has a connection pattern (not shown) for electrically connecting the substrate portion 26a and the second substrate portion 26b, and is substantially U-shaped so that the first substrate portion 26a and the second substrate portion 26b face each other. It consists of a bent portion 26c that can be bent into a shape.

  A detailed configuration of the connector board 26 will be described with reference to FIG. The first substrate portion 26a on the back surface of the connector substrate 26 (see FIG. 3B) is provided with a through hole 52a as a hole portion into which the plurality of single wire pins 23 are inserted, and around the through hole 52a. A single-wire pin land 52 composed of lands 52b, a through hole 53a as a hole portion into which the shield portions of the plurality of coaxial pins 24 are inserted, and an outer edge side of the first substrate portion 26a around a part of the through hole 53a. A coaxial shield pin land 53 including a land 53b is provided, and a connector 27a to which the cable connector 28a of the scope connector signal line 30a is attached is mounted.

  The connector 27a to which the cable line connector 28a is attached is mounted on the outer peripheral side of the first board portion 26a, and the single-wire pin land 52 is mainly located from the center of the first board portion 26a as indicated by P1 to P19 in the drawing. The coaxial shield pin land 53 is provided closer to the outer edge side of the first substrate portion 26a than the single wire pin land 52 provided from the center as indicated by P21 to P25 in the drawing.

  When the second board portion 26b on the back surface of the connector board 26 (see FIG. 3B) is bent from the bent portion 26c so as to face the first board portion 26a, the first board portion 26a is formed. The coaxial shield pin land 53 includes a through hole 55a as a hole portion into which the core wire portion of the coaxial pin 24 is inserted at positions facing P21 to P25 in the drawing, and a land 55b provided around the through hole 55a. The shield film 54 provided in the whole area | region except the core wire pin land 55 (P31-P35 in the figure) and the coaxial core wire pin land 55 is formed. The shield film 54 is mainly for electromagnetic shielding between the first substrate portion 26a and the second substrate portion 26b, and extends from the bent portion 26c to a part of the first substrate portion 26a. And electrically connected to a ground potential pattern (not shown).

  On the other hand, the first substrate portion 26a on the front surface of the connector substrate 26 (see FIG. 3A) has a hole 52′a communicating with the through holes 52a of the single-wire pin lands 52 (P1 to P19) on the back surface, A single-wire pin land 52 ′ composed of lands 52 ′ b provided around the hole 52 ′ a and a hole 53 ′ a communicating with the through-hole 53 a of the coaxial shield pin land 53 (P 21 to P 25) on the back surface are provided. ing. The second substrate portion 26b includes a hole 55'a communicating with the through hole 55a of the coaxial core pin land 55 (P31 to P35) on the back surface, and a land 55'b provided around the hole 55'a. Coaxial core wire pin land 55 ′ (P31 to P35) is provided.

  Further, a connector in which a cable line connector 28b connected to the operation part signal line 30b of the cable line 29 is attached to the center part of the second board part 26b on the surface of the connector board 26 (see FIG. 3A). 27b and a connector 27c to which a cable line connector 28c connected to the insertion portion signal line 30c is mounted are mounted.

  When the second board portion 26b is bent toward the first board portion 26a, a portion overlapping the connector 27a provided on the first board portion 26a is notched. The cutout of the second board portion 26b facilitates the mounting of the cable line connector 28 to the connector 27a mounted on the first board portion 26a.

  That is, the connector board 26, which is a board formed of a flexible board, has the first board part 26a in a state where the first board part 26a and the second board part 26b are folded so as to overlap the folding part 26c. A connection member such as a single wire pin 23 and a coaxial pin 24 mainly connected to an external device is connected to one surface consisting of the front surface of the second substrate portion 26b and the rear surface of the second substrate portion 26b. Cable line connectors 28a, 28b, 28c connected mainly to the cable line 29 built in the universal cord 110 of the electronic endoscope, on the other surface side consisting of the back surface of 26a and the surface of the second substrate portion 26b. Connectors 27a, 27b, and 27c to be mounted are mounted.

  Connectors 27a to 27c provided on the first substrate portion 26a on the back surface (see FIG. 3B) of the connector substrate 26 and the second substrate portion 26b on the front surface (see FIG. 3A) are connector substrates. 26 are connected to some of the single-wire pin lands 52 (P1 to P19), the coaxial shield pin lands 53 (P21 to 25), and the coaxial core pin lands 53 (P31 to P35) provided by the connection pattern (not shown). Yes.

  In this embodiment, the number of single-wire pin lands 52 (P1 to P19), coaxial shield lands 53 (P21 to P25), and coaxial core lands 55 (P31 to P35) provided on the connector board 26, and the connectors 27a to 27a The number of 27c is an example, and is changed depending on the type, thickness, and quantity of the signal lines 30a to 30c included in the cable line 29, the number of poles of the connector 27, and the like. Further, the number and position of the connectors 27a to 27c mounted on the first board portion 26a and the second board portion 26b of the connector board 26, and the scope connector signal line that is a signal line connected to each connector 27a to 27c. The combination of 30a, operation unit signal line 30b, and insertion unit signal line 30c is also an example and can be changed. For example, without providing the connector 27a on the first substrate portion 26a, depending on the type and number of signal lines 30a to 30c of the scope connector, the operation portion, and the insertion portion included in the cable line 29, and the number of poles of the connector 27, Only the two connectors 27b and 27c of the second board part 27b may be provided, or three connectors 27a to 27c may be provided on the second board part 26b. If the first board portion 26a is not provided with the connector 27a, only the two connectors 27b and 27c of the second board portion 26b or the three connectors 27a to 27c are provided on the second board portion 26b. In this case, it is not necessary to provide a cutout in the second substrate portion 26b.

  Next, the single wire pin 23 and the coaxial pin 24 used in the electrical connector 10 of the present invention will be described with reference to FIG. FIG. 4 is a cross-sectional view showing the relationship between the configuration of single wire pins and coaxial pins used in the electrical connector of the endoscope according to the embodiment of the present invention and the connector substrate.

  The single wire pin 23 is a terminal including a front end portion 23a, an intermediate portion 23b, a board fixing portion 23c, and a terminal end portion 23d from the side indicated as the video processor 106 (external device) side in the drawing. The distal end portion 23 a extends from the cover member 14 and is attached to a single wire receiving plug of the connection plug 122 of the connection cord 121 for connecting to the video processor 106 described above. The intermediate portion 23b is inserted into the cover member 14 and the insulator 23 and fixed in a watertight manner with an adhesive. The board fixing portion 23c is soldered to the board 16 so that the positional relationship between the insulator 15 and the board 16 is maintained, and electrical connection between the connection pattern provided on the board 16 is performed. The end portion 23d is inserted into the through hole 52a of the single wire pin land 52 of the first substrate portion 26a of the connector substrate 26, and is soldered to the land 52b.

  The end portion 23d of the single wire pin 23 (the side indicated as the electronic endoscope 102 (operation unit 109) side in the figure) is inserted into the through hole 52a of the single wire pin land 52 of the first substrate portion 26a of the connector substrate 26. A protruding portion 23e having an outer diameter and a step portion 23f with which an outer diameter larger than the inner diameter of the through hole 52a abuts a land 52b around the through hole 52a are provided. That is, the protruding portion 23e of the terminal end portion 23d is inserted into the through hole 52a of the single wire pin land 52 of the first substrate portion 26a, and the step portion 23f is brought into contact with the land 52b around the through hole 52a.

  The coaxial pin 24 is provided on the shield part 41 that is a cylindrical outer conductor as the second conductor, the cylindrical insulator 42 provided on the inner periphery of the shield part 41, and the inner periphery of the insulator 42. It consists of a core wire portion 43 which is a cylindrical inner conductor as a first conductor.

  The shield line portion of the coaxial receiving plug provided in the connection plug 122 described above is mounted on the outer periphery of the distal end side of the shield portion 41 (the side indicated as the video processor 106 (external device) side in the drawing). On the distal end side of the core wire portion 43, a core wire insertion portion provided in the axial direction into which the core wire portion of the coaxial receiving plug provided in the connection plug 122 is inserted is provided.

  The shield part 41, the insulator 42, and the core wire part 43 are fastened and fixed by the support member 44 from the outer periphery of the shield part 41 so that the mutual positional relationship does not shift. The insulator 42 provided between the shield part 41 and the core wire part 43 extends to a substantially central portion in the longitudinal direction of the shield part 41 and the core wire part 43, and the shield part 41 is connected to the rear end side of the insulator 42. A support sleeve 45 for keeping the space between the core wire portions 43 is provided on the outer periphery of the core wire portion 43. An elastic filler 46 is filled between the shield part 41 and the core wire part 43 on the rear end side of the support sleeve 45 so that water or the like does not enter the electrical connector 10 through the space between the shield part 41 and the core wire part 43. Is hermetically sealed.

  In addition, the shield part 41, the insulator 42, and the core wire part 43 are not completely fixed by the support member 44, the insulator 42 and the core wire part 43 are not detached from the shield part 41, and the core wire part. 43 is fixed in a state having a margin to swing slightly with respect to the shield part 41. Further, the elastic filler 46 is also filled so that the core wire portion 43 can swing without completely fixing the core wire portion 43.

  The reason why the core wire portion 43 is formed so as to be able to swing in the axial direction is that when the connection plug 122 of the connection cord 121 connected to the video processor 106 is inserted, the core wire portion 43 is completely fixed and swings completely. Otherwise, the core portion of the coaxial receiving plug may be bent or broken. Therefore, the insertion force of the core wire portion of the coaxial receiving plug is absorbed by swinging the core wire portion 43, thereby avoiding bending and bending of the core wire portion of the coaxial receiving plug.

  The coaxial pin 24 having such a configuration is inserted into the through hole provided in the cover member 14 and the insulator 15 of the base 11 and through the through hole provided in the substrate 16, and soldered to the land provided in the through hole. Soldered by 16a. In addition, the coaxial pin 24 penetrated through the cover member 14 of the base 11 and the through hole of the insulator 15 is fixed with an adhesive so as to be kept watertight.

  Further, the end of the shield part 41 of the coaxial pin 24 (the side indicated as the electronic endoscope 102 (operation part 109) side in the drawing) is the coaxial shield pin land of the first board part 26a of the connector board 26. It is inserted into the through hole 53a of 53 and soldered to the land 53b.

  The terminal end portion 43a (the side indicated as the electronic endoscope 102 (operation unit 109) side in the drawing) of the core wire portion 43 of the coaxial pin 24 is the coaxial core wire pin land 55 of the second board portion 26b of the connector board 26. A projection 43b having an outer diameter to be inserted into the through hole 55a and a step portion 43c with which an outer diameter larger than the inner diameter of the through hole 55a abuts the land 55b around the through hole 55a are provided. That is, the protrusion 43b of the terminal end portion 43a of the core wire portion 43 is inserted into the through hole 55a of the coaxial core wire pin land 55 of the second substrate portion 26b, and the step portion 43c is brought into contact with the land 55b around the through hole 55a.

  The assembly of the connector board 26 to the electrical connector 10 provided with the single wire pin 23 and the coaxial pin 24 having such a configuration will be described with reference to FIG. The single wire pin 23 and the coaxial pin 24 are electrically connected to the board 16 and the connector board 26, and mechanically connected to the first board part 26a and the second board part 26b of the board 16 and the connector board 26. Has the purpose of fixing and maintaining spacing.

  As described above with reference to FIG. 4, the single-wire pin 23 solders the substrate fixing portion 23 c to the substrate 16 to electrically connect to the substrate 16 and to maintain the positional relationship between the insulator 15 and the substrate 16. However, as shown in FIG. 5, a single wire pin 23 'having the same shape and configuration as the single wire pin 23 and having a short length from the tip 23a to the step 23f of the end 23d is provided. The pin 23 ′ is mainly used for electrical connection with the substrate 16 and position holding.

  The plurality of short single wire pins 23 ′ are provided on the cover member 14 and the insulator 15 in the base 11 so that the position of the step portion 23 f ′ of the terminal end portion 23 d ′ is at least the same height t 1 from the insulator 15. Yes. The protrusion 23e ′ of the terminal end portion 23d ′ of the single wire pin 23 ′ is inserted into the through hole provided in the substrate 16, and the step portion 23f ′ is brought into contact with the lands around the through hole provided on both surfaces of the substrate 16. And solder. Accordingly, the substrate 16 and the insulator 15 are held at a constant interval t1, and in the present embodiment, the substrate 16 and the short single-wire pin 23 'are electrically connected. The board 16 is provided with a connection pattern and a ground potential pattern for electronic components mounted on the board 16, and a plurality of short single-wire pins 23 ′ are connected via the soldered lands. Alternatively, it is electrically connected to the ground potential pattern.

  The plurality of single wire pins 23 are provided on the cover member 14 and the insulator 15 in the base 11 so that the position of the step portion 23f of the end portion 23d of the single wire pin 23 is at least the same height t2 from the substrate 16. The protrusion 23e of the end portion 23d of the single wire pin 23 is inserted into the through hole 52a of the single wire pin land 52 of the first substrate portion 26a of the connector substrate 26, and the step portion 23f is brought into contact with the land 52b around the through hole 52a. And solder. As a result, the substrate 16 and the first substrate portion 26a of the connector substrate 26 are held at a constant interval t2 and are electrically connected.

  The plurality of coaxial pins 24 cover the base 11 so that the position of the stepped portion 43c of the terminal portion 43a of the core wire portion 43 of the coaxial pin 24 is at least the same height t3 from the first substrate portion 26a of the connector substrate 26. The member 14 and the insulator 15 are provided. The protrusion 43b of the terminal end portion 43a of the core wire portion 43 of the coaxial pin 24 is inserted into the through hole 55a of the coaxial core pin land 55 of the second substrate portion 26b of the connector substrate 26, and is stepped on the land 55b around the through hole 55a. The part 43c is brought into contact with and soldered. Thus, the first board portion 26a and the second board portion 26b of the connector board 26 are held at a constant interval t3 and are electrically connected.

  Note that when the first board portion 26a of the connector board 26 is soldered to the terminal end portion 23d of the single wire pin 23, the through hole 53a of the coaxial pin land 53 provided in the first board portion 26a of the connector board 26 is inserted. When the terminal side of the shield part 41 of the coaxial pin 24 is inserted and the first board part 26a is soldered to the single wire pin 23, the shield part 41 of the coaxial pin 24 and the coaxial shield pin land 53 of the first board part 26a. Also solder.

  In this way, by providing the single wire pins 23 and 23 ′ and the coaxial pins 24 provided on the cover member 14 and the insulator 15 in the base 11 at predetermined height intervals, the first board of the board 16 and the connector board 26 is provided. In addition to being mechanically held at the respective height intervals of the portion 26a and the second substrate portion, electrical connection can also be made. In general, dedicated fixing and spacing members are used for fixing the substrate and holding the spacing between the substrates, but the present invention does not use these dedicated fixing and spacing members, and the substrate 16 In addition, it is possible to fix the connector substrate 26 and maintain the interval.

  The operation of soldering the connector substrate 26 to the base 11 of the electrical connector 10 is performed by placing the single wire pins 23, the coaxial pins 24, and the post pins 25 in the base 11 so as to be perpendicular to the work table. Respective pin lands 52, 53, and 55 can be inserted into the pins 23 and the coaxial pins 24 so that the first substrate portion 26a and the second substrate portion 26b of the connector substrate 26 are in a horizontal state. For this reason, since the operation | work which solders the single wire pin 23 and the coaxial pin 24 to the connector board | substrate 26 can be performed planarly, the efficiency of a soldering operation | work improves.

  Further, the terminal end portion 43 a of the core wire portion 43 of the coaxial pin 24 is connected only to the second substrate portion 26 b of the connector substrate 26. Therefore, when the connection plug 122 of the connection cord 121 connected to the video processor 106 is inserted into the core wire portion 43 of the coaxial pin 24, the second substrate portion 26b is also a part of the bent portion 26c in accordance with the swing of the core wire portion 43. The core wire portion of the coaxial plug 24 of the connection plug 122 can be avoided from being bent or bent by swinging the core wire portion 43 of the coaxial pin 24 together.

  Further, the single wire pin land 52, the coaxial shield pin land 53, and the coaxial core pin land 55 provided on the first substrate portion 26a and the second substrate portion 26b of the connector substrate 26 are the first and second substrate portions 26a, 26b. Since the single wire pin 23 and the coaxial pin 24 are disposed corresponding to the pin lands 52, 53, 55 of the single wire, the coaxial shield, and the coaxial core wire, the single wire pin 23 and the coaxial pin 24 are disposed at substantially symmetrical positions with respect to the center of the wire. In addition, it is possible to stabilize the spacing and planar fixation between the first substrate portion 26a and the second substrate portion 26b of the connector substrate 26 soldered to the single wire pin 23 and the coaxial pin 24.

  Furthermore, when the second board portion 26b of the connector board 26 is bent to the first board portion 26a, the connector 27a and the second board portion 26b which are components mounted on the first board portion 26a are provided. Since the notch is provided in the second substrate portion 26b so that interference such as contact does not occur, the second substrate portion 26b is bent to a position lower than the height of the connector 27a, or the connector 27a The bending up to the height position is possible, and the space occupied by the connector board 26 in the relatively narrow space in the shield frame 19 of the electrical connector 10 can be reduced.

  If interference such as contact occurs in the second board portion 26b due to the height dimension of the component mounted on the first board portion 26a of the connector board 26, the components mounted on the second board portion 26 Depending on the height, the distance between the first and second substrate portions 26a, 26b is increased by using the coaxial pin 24 having a different dimension between the end of the shield portion 41 of the coaxial pin 24 and the end 43a of the core wire portion 43. Alternatively, the components to be mounted are mounted only on the second substrate portion 26b, and the distance between the first and second substrate portions 26a and 26b is reduced, so that the first and second substrate portions are arranged. You may make it make the whole height of 26a, 26b low.

  Next, the cable connector 28a connected to the distal ends of the scope connector signal line 30a, the operation part signal line 30b, and the insertion part signal line 30c of the cable line 29 attached to the connectors 27a to 27c mounted on the connector board 26. ˜28c will be described with reference to FIGS. FIG. 6 is a plan view showing a cable line connector provided at the distal end of a cable line used for the electrical connector of the endoscope according to the embodiment of the present invention, and FIG. 7 shows the electrical connector of the endoscope according to the embodiment of the present invention. FIG. 8 is a plan view showing a first modification of the cable line connector provided at the tip of the cable line to be used, and FIG. 8 is a first view of the cable line connector provided at the tip of the cable line used for the electrical connector of the endoscope according to the embodiment of the present invention. FIG. 9 is a plan view showing the second modification, and FIG. 9 shows the connection of the signal wires and the connector in the second modification of the cable line connector provided at the tip of the cable line used for the electrical connector of the endoscope according to the embodiment of the present invention. It is a top view explaining the mounting state of.

  First, the cable line connector 28 connected to the tip of the cable line 29 will be described with reference to FIG.

  The cable line connector 28 is formed by using a flexible substrate, a cable line connection portion 28x arranged in a lateral direction of the paper surface formed in a slightly wide rectangular shape, and from a substantially central portion of the cable line connection portion 28x in a vertical direction of the paper surface. It consists of the extended connection terminal portion 28y, and the overall shape is substantially T-shaped.

  Connection lands 37a to 37n and 38a to 38n for connecting a plurality of electric wires with substantially equal intervals in two rows in the longitudinal direction are provided in a plane on the cable line connection portion 28x. The connection lands 37, 38 are each soldered with a single wire or a coaxial wire such as the scope connector signal line 30a, the operation part signal line 30b, or the insertion part signal line 30c of the cable line 29 in a plane. That is, the single wire is soldered to the connection lands 37a to 37n. In the coaxial cable, the core wire is soldered to the connection lands 37a to 37n, and the shield wire is soldered to the connection lands 38a to 38n.

  The connection lands 37 and 38 may have through holes as positioning holes into which electric wires are inserted, and soldering lands may be provided around the through holes, or through holes are formed. Alternatively, only a land for soldering the electric wire may be provided. In addition, the intervals between the connection lands 37a to 37n and 38a to 38n provided in the cable line connecting portion 28x are easy to be soldered according to the types and thicknesses of the connected single wires and coaxial wires. Is set to

  A cut groove 40a cut in an I-shape parallel to the end is provided at one end in the longitudinal direction of the cable wire connection portion 28x, and a cut groove 40b cut in a substantially U-shape is provided at the other end. It has been.

  In addition, a ground land 36 to which the total shield wire of the composite coaxial cable is soldered is provided at a substantially central portion of the cable line connection portion 28x. The ground land 36 is connected to the ground potential of the electrical connector 10 via the ground lead wire 36a.

  The cable wire 29 used for the endoscope is a single wire or coaxial wire having a relatively small diameter. When the cable wire 29 having a thin wire diameter is soldered to the connection lands 37 and 38 of the cable wire connection portion 28x of the cable wire connector 28, if a pulling force is applied to the soldered nearby cable wire 29, the cable wire 29 is Disconnect. Therefore, when the composite cable's comparatively thick and strong general shield is soldered to the ground land 36, even if a force for pulling the composite cable is applied, no direct force is applied to the single wire or coaxial wire in the composite cable, so that the wire breaks. It becomes difficult. At the tip of the connection terminal portion 28y, a terminal portion 39 is formed in which a plurality of terminal pieces 39a connected to the connection lands 37a to 37n, 38a to 38n by a connection pattern (not shown) are provided at equal intervals. The terminal portion 39 made up of a plurality of terminal pieces 39a provided on the connection terminal portion 28y is formed in a shape that is inserted into and mounted on the connector 27 provided on the connector board 26 described above.

  A plurality of single-wire electric wires or coaxial electric wires constituting the scope connector signal line 30a, the operation part signal line 30b, or the insertion part signal line 30c of the cable line 29 are respectively connected to the cable line connector 28 having such a configuration. In the state of being connected to the 28x connection lands 37a to n and 38a to n, the both ends of the cable wire connection portion 28x are deformed into a circular shape, and one end is formed in the U-shaped cut groove 40b at the other end. The I-shaped cut groove 40a can be attached to hold the cable wire connecting portion 28x in a substantially cylindrical shape. That is, the cut grooves 40a and 40b constitute a holding portion for holding the cable wire connecting portion 28x in a cylindrical shape.

  That is, after the terminal portion 39 of the connection terminal portion 28y is inserted and attached to the connector 27 provided on the connector board 26 in the shield frame 19 of the electrical connector 10, the cable wire connection portion 28x is deformed into a cylindrical shape, And the I-shaped cut grooves 40a and 40b hold the shape, so that the cable line connector 28 having the connection lands 37 and 38 having a wide interval can be accommodated in the narrow space in the shield frame 19. it can.

  Further, when the terminal portion 39 of the connecting terminal portion 28y is inserted into the connector 27, the connecting terminal portion 28y is folded inside the cable wire connecting portion 28x that is deformed into a cylindrical shape, so that the inside of the shield frame 19 is accommodated. The cable connector 28 can be accommodated in the narrow space of the shield frame 19 by shortening the length.

  A first modification of the cable line connector 28 will be described with reference to FIG. FIG. 7 shows a state in which a composite cable 30m having a plurality of coaxial wires is connected to the cable line connector 28 'of the first modification. That is, the total shield wire of the composite cable 30m is connected to the ground land 36 ', the shield wire of each coaxial cable of the composite cable 30m is connected to the connection lands 38'a to 38'n, and the core wire is connected to the connection land 37'. The state connected to a-37'n is shown.

  The cable line connector 28 'is different from the cable line connector 28 described above with reference to FIG. 6 in terms of the shape of the cut grooves 40a and 40b constituting the holding portions provided at both ends of the cable line connection portion 28x, and the connection terminal portion. The shape of the terminal portion 39 provided at the tip of 28y is different.

  A convex cut hole 40′a is provided at one end of the cable line connecting portion 28′x of the cable line connector 28 ′ of the first modification, and a substantially isosceles triangular shape is provided at the other end. Thus, a hook-shaped portion 40'b having a connecting piece of a predetermined width is provided on the bottom of the triangle. Insert the isosceles triangle shape of the ridge shape portion 40'b into the wide portion of the convex cut hole 40'a, and attach the connecting piece of the ridge shape portion 40'b to the narrow portion of the convex cut hole 40'a. By doing so, the shape of the cable line connecting portion 28x ′ can be held in a substantially cylindrical shape.

  Further, at the tip of the connection terminal portion 28'y, a terminal portion 39 'comprising a plurality of terminal pieces 39'a and a guide piece 39'b as a guide portion in parallel with the terminal piece 39'a is provided. Yes. The guide piece 39'b is formed to have a width relatively narrower than the width of the plurality of terminal pieces 39'a, and the guide piece is provided along with the insertion opening of the terminal piece 39'a provided in the connector 27 (not shown). The guide piece 39′b is inserted and attached to the insertion port, or the guide piece 39′b is attached along the outer side of the housing of the connector 27. Thereby, the insertion error of the front and back when inserting in the connector 27 of terminal part 39 'does not arise.

  Furthermore, although not shown, the widths of the connection terminal portions 28y and 28'y shown in FIGS. 6 and 7 are formed wider than the width of the terminal portions 39 and 39 'composed of a plurality of terminal pieces 39a and 39'a. To do. If the connection terminal portions 28y and 28'y are wider than the terminal portions 39 and 39 ', the wide connection terminal portions 28y and 28'y are connected to the connector 27 when the terminal portions 39a and 39' are attached to the connector 27. Can be brought into contact with the outside of the tip. Thereby, it can be confirmed that the terminal portions 39 and 39 ′ are properly attached to the connector 27.

  Further, in particular, when the terminal portion 39 is appropriately attached to the connector 27 in the vicinity of the terminal portion 39 on the surface of the connection terminal portion 28y shown in FIG. Let the notation. By using the index 39x, it is possible to prevent erroneous insertion of the front and back when the terminal portion 39 of the cable line connector 28 is attached to the connector 27, and to confirm the attachment state of the terminal portion 39 to the connector 27.

  In the above description, the connection lands 37a to 37n and 37a 'to 37'n of the cable line connectors 28 and 28' shown in FIG. 6 and FIG. Although it has been described that the shield wire of the coaxial cable is connected to 38a to 38n and 38'a to 38'n, the connection lands 38a to 38n can be changed by changing the connection pattern of the connection lands 37, 37'38, and 38 '. , 38′a to 38′n may be connected to a single wire or a core wire of a coaxial wire, and a shield wire of the coaxial wire may be connected to the connection lands 37a to 37n and 37′a to 37′n. That is, the wires and connection patterns to be connected to the connection lands 37, 37 ′, 38, and 38 ′ are set according to the types and thicknesses and the quantities of the single wire and the coaxial wire connected to the cable wire connectors 28 and 28 ′. Is done. Further, the interval between the connection lands 37, 37 ', 38, 38' is set to an optimum interval for the soldering work depending on the types and thicknesses of the single wire and the coaxial wire to be connected.

  As described above, the cable line connectors 28 and 28 'are formed in a T-shape with a flexible substrate, and have a plurality of connection lands 37, 37', and 38 in the horizontally long and flat cable line connection portions 28x and 28'x. , 38 ′ are provided at intervals that allow easy soldering of the single wire and the coaxial wire, and are connected to the connection lands 37, 37 ′, 38, 38 ′ provided in the cable wire connection portions 28 x, 28 ′ x by a connection pattern. The connection terminal portions 28y and 28'y are provided with terminal portions 39 and 39 'composed of a plurality of terminal pieces 39a and 39'a having a relatively narrow width.

  For this reason, since a plurality of single wires and coaxial wires of the cable wire 29 are planarly soldered to the cable wire connection portions 28x and 28'x, the soldering operation is facilitated, and the connector board 26 of the electrical connector 10 is attached. When connecting and accommodating in the shield frame 19, the cable wire connection portions 28x and 28'x and the connection terminal portions 28y and 28'y can be deformed and accommodated.

  Next, a second modification of the cable line connector 28 will be described with reference to FIGS. As shown in FIG. 8, the cable line connector 28 ″ of the second modified example is formed in a substantially rectangular shape by a flexible substrate, and is connected to the coaxial cable core wire provided at equal intervals in a substantially central portion. 37 ”and a cable land connecting portion 38 ″ connected to a shielded wire of a coaxial cable and a single wire, a rectangular hole 40 ″ as a retaining portion provided on the tip side, and a rectangular hole 40 ″. The connection lands 37 ″ and 38 ″ and terminal portions 39 ″ having terminal pieces connected by a connection pattern (not shown). Further, a cable line fixing piece 38 "z extends from the rear end side of the cable line connector 28".

  The connection land 38 ″ is an example composed of three connection lands 38 ″ x to which a single wire is connected and four connection lands 38 ″ y to which a coaxial cable shield line is connected. ing.

  For example, a state in which a composite coaxial cable 30n including three single wire 30x and four coaxial wires 30y is connected to the cable connector 28 '' will be described with reference to FIG. Each single wire 30x is soldered to the three connection lands of the connection land 38 ″ x, and each shield wire of the four coaxial wires 30y is soldered to the four connection lands of the connection land 38 ″ y. Each core wire of the four coaxial cables 30y is soldered to the connection land of the connection land 37 ″.

  The composite coaxial cable 30n is fixed to the cable line fixing piece 38 "z of the cable line connector 28" by a heat-shrinkable tube 38 "t.

  Thus, when the terminal portion 39 ″ of the cable wire connector 28 ″ connected to the plurality of single-wire wires 30x and the coaxial wire 30y constituting the composite coaxial cable 30n is inserted and connected to the connector 27, the inside of the rectangular hole 40 ″ The outer periphery of the connector 27 is fitted to the connector 27. Thus, the cable wire connector 28 "is not easily detached from the connector 27.

  In addition, an indicator 39 ″ x indicating the position of the end of the connector 27 when the terminal 39 ″ is properly attached to the connector 27 up to a predetermined position in the vicinity of the terminal 39 ″ on the surface of the cable wire connector 28 ″. Let the notation. The index 39 ″ x makes it easy to distinguish the front and back of the cable connector 28 ″, and it can be confirmed whether the terminal portion 39 ″ when the terminal portion 39 ″ is attached to the connector 27 is properly attached to the connector 27.

  Note that the number of connection lands provided on the connection lands 37 ″ and 38 ″ of the cable line connector 28 ″ and the types of electric wires to be connected are only examples, and the electric wires constituting the composite coaxial cable 30n to be connected. It can be freely set according to the type, thickness and number.

  When the substantially rectangular widthwise dimension of the cable line connector 28 "of the second modification is formed, for example, equal to or smaller than the inner diameter of the outer casing of the universal cord 110 or the insertion portion 108, the cable line connector 28" is connected. The cable wire 29 can be pulled out from the universal cord 110 and the insertion portion 108 and re-inserted. As a result, the work of exchanging the outer sheath of the universal cord 110 and the insertion portion 108 eliminates the need to cut and re-solder the cable line connector 28 "and the cable line 29, and simply removes the cable line connector 28" from the connector 27. Work.

  A method of assembling the connector board 26 to the electrical connector 10 having the single wire pin 23 and the coaxial pin 24 described above and the cable line connector 28 provided on the signal line 29 will be described.

  As described with reference to FIG. 5, a plurality of single wire pins 23 in which the step portions 23 f of the single wire pins 23 are provided at the same height position and a plurality of steps in which the step portions 43 c of the coaxial pin 24 are provided at the same height position. The base 11 having the coaxial pin 24 is placed on the work table so that the single wire pin 23 and the coaxial pin 24 are in a vertical state.

  Through hole 52a and coaxial shield pin land 53 of single wire pin land 52 provided in first substrate portion 26a of connector substrate 26 in which connectors 27a to 27c are mounted in advance on single wire pin 23 and coaxial pin 24 in the vertical state. Through-hole 53a is inserted. The first substrate portion 26 a of the connector substrate 26 inserted into the single wire pin 23 and the coaxial pin 24 is mounted on the step portion 23 f of the plurality of single wire pins 23 in a planar shape. When the single wire pin 23 and the coaxial pin 24 are inserted into the through hole 52a of the single wire pin land 52 of the first substrate portion 26a of the connector substrate 26 and the through hole 53a of the coaxial shield pin land 53, the surface side of the connector substrate 26 is provided. (See FIG. 3A) is on the side of the base plate 16 of the base 11.

  When the first board portion 26a of the connector board 26 is attached to the single wire pin 23 and the coaxial pin 24 provided on the base 11, first, the single wire pin land 52 (P1 to P1) in the central portion of the first board portion 26a is mounted. The single wire pin 23 and the land 52b inserted in the through hole 52a of P19) are soldered. When the soldering of the single wire pin land 52 and the single wire pin 23 is completed, the shield portion 41 of the coaxial pin 24 inserted in the through hole 53a of the coaxial shield pin land 53 (P21 to P25) is then soldered to the land 53b. .

  That is, the first board portion 26 a of the connector board 26 is mounted on the vertical single wire pin 23 and the coaxial pin 24 in a planar shape. The first board portion 26a of the connector board 26 mounted in a plan view has an outer periphery (in the direction of the outer edge of the first board portion 26a) from the center of the single-wire pin land 52 provided in the central portion of the first board portion 26a. This is a first board part connecting step in which the coaxial shield pin land 53 provided on the outer peripheral side of the first board part 26a is soldered after the soldering of the single wire pin land 52 is finished. .

  In the first board part connecting step, soldering is facilitated and efficiency is improved by soldering in order from the pin land provided at the center of the first board part 26a to the pin land provided on the outer periphery. . In particular, after the soldering of the single pin lands 52 (P1 to P19) of the first substrate portion 26a, the lands 53b of the coaxial pin lands 53 are used as the second substrate when the coaxial pin lands 53 (P21 to P25) are soldered. Since the soldering is performed from the outer edge side of the substrate by providing the outer edge side of the portion 26a, the operation becomes easy.

  When the soldering of the single-wire pin lands 52 (P1 to P19) and the coaxial shield pin lands 53 (P21 to P25) of the first board portion 26a in the first board connecting step is finished, the back surface of the connector board 26 (FIG. 3 ( b)) is bent from the bent portion 26c so that the first substrate portion 26a and the second substrate portion 26b are opposed to each other, and the through hole 55a of the coaxial core pin land 55 (P31 to P35) of the second substrate portion 26b. Is inserted into the core wire portion 43 of the coaxial pin 24 connected to the coaxial shield pin land 53 of the first substrate portion 26a. The second board portion 26 b of the connector board 26 inserted into the core wire portion 43 of the coaxial pin 24 is mounted in a planar manner at the step portion 43 c of the core wire portion 43 of the plurality of coaxial pins 24 and soldered.

  That is, the second board portion 26 b of the connector board 26 is mounted in a plane with respect to the vertical coaxial pin 24. The second board portion 26b of the connector board 26 mounted in a planar manner is a second board portion connecting step for soldering the coaxial pin land 55 provided on the outer periphery of the second board portion 26b.

  After the connector board 26 is attached to the single wire pin 23 and the coaxial pin 24 provided on the base 11 by the first and second board part connecting steps, as shown in FIG. 1, the scope connector signal line 30a of the cable line 29 is provided. Then, the cable line connector mounting step of mounting the cable line connectors 28a to 28c of the operation unit signal line 30b and the insertion unit signal line 30c to the connectors 27a to 27c is performed. When the cable line connectors 28 a to 28 c are attached to the connectors 27 a to 27 c of the connector board 26, the cable line connectors 28 a to 28 c are deformed and held so as to be accommodated in the shield frame 19, and then the shield frame 19 is attached to the base 11. Assembling to the electrical connector 10 is performed by screwing, attaching the shield lid 20, and fixing the cable wire 29 by the electric wire retaining plate 21.

  After the cable line connectors 28a to 28c are attached to the connectors 27a to 27c of the connector board 26, the cable line connectors 28a to 28c, which are the cable line connectors 28a to 28c, are grounded as described in FIGS. The lead wire 36a is fixed to the shield lid 20 at the rear end of the shield frame 19 with screws. By fixing the ground lead 36a to the shield lid 20, the shield pattern of the cable line connectors 28a to 28c and the overall shield of the composite cable are electrically connected to enhance the ground state, which is advantageous in terms of electromagnetic compatibility. It becomes.

  As described above, since the connector board 26 is mounted in a plane on the base 11 placed so that the single-wire pins 23 and the coaxial pins 24 are in a vertical state, Soldering of the pin 23 and the coaxial pin 24 can be performed in a planar manner. For this reason, compared to the conventional three-dimensional work in which the signal lines 155 and 156 are soldered and connected to the terminal pins 152 and 154 in the coaxial direction, the work becomes easier and the work efficiency is improved.

  Further, the soldering of the single wire pin 23, the coaxial pin 24, and the lands 52b, 53b around the through holes 52a, 53a of the first board portion 26a is performed in the order from the central portion of the first board portion 26a in the outer edge direction. Alternatively, soldering of the connector board 26, the single wire pin 23, and the coaxial pin 24 is facilitated by performing the operation in the order of the single wire pin 23 to the coaxial pin 24.

  The land 53b of the coaxial shield pin land 53 formed on the first substrate portion 26a on the back surface of the connector substrate 26 (see FIG. 3B) is located on the outer edge side of the first substrate portion 26a of the through hole 53a. Although it is provided in part, it may be provided all around the through hole 53a.

  Next, an operation procedure in the case where an electrical failure occurs in the electronic endoscope having the electrical connector 10 and work for confirming the failure or repairing the failure portion will be described.

  When identifying a malfunction of the electronic endoscope, after removing the electric wire retaining plate 21 and the shield cover 20 that fix the cable wire 29 and removing the shield frame 19 from the base 11, the scope connector of the cable wire 29 The cable line connectors 28a to 28c provided on the signal line 30a, the operation part signal line 30b, and the insertion part signal line 30c are removed from the connectors 27a to 28c of the connector board 26.

  The cable line connectors 28a to 28c removed from the connectors 27a to 27c of the connector board 26 are connected to the respective inspection jigs to inspect and identify defective portions. For example, the cable line connector 28a connected to the scope connector signal line 30a is connected to a jig for checking the transmission / reception state of a dimming signal transmitted to and received from the light source device 103, and is connected to the operation unit signal line 30b. 28b is connected to a jig for checking the transmission / reception state of the switch signal with the image processing system switch provided in the operation unit 106, and the cable line connector 28c connected to the insertion unit signal line 30c is an imaging unit including the CCD 115. It is possible to connect to a jig for checking the performance and operation confirmation of each and confirm each defect and identify the defect location.

  That is, the signal lines 155 and 156 of the cable wire 112 soldered to the terminal pins 152 and 154 in the base 131 as described in the related art described with reference to FIG. , 156 is not required to be re-soldered to the inspection jig, and the cable board connectors 28a to 28c removed from the connectors 27a to 27c of the connector board 26 are simply connected to the inspection jig. it can.

  The electrical connector 10 after the cable line connectors 28a to 28c are disconnected from the connectors 27a to 27c of the connector board 26 checks the connection state between each single wire pin 23, the coaxial pin 24, and the connector board 26. If there is a defect in the single wire pin 23 or the coaxial pin 24 or a connection failure with the connector substrate 26 and the connector substrate 26 needs to be removed from the single wire pin 23 and the coaxial pin 24, the assembly of the connector substrate 26 described above is performed. It can be easily removed by working in the reverse order.

  That is, first, the solder of the land 55b of the coaxial core wire pin land 55 of the second substrate portion 26b of the connector substrate 26 and the solder of the core wire portion 43 of the coaxial pin 24 which are soldered in the second substrate portion connection step at the time of assembly is removed. Then, the core wire portion of the coaxial pin 24 is removed from the coaxial core wire through hole 55b.

  Next, the solder of the land 53b of the coaxial shield pin land 53 and the shield 41 of the coaxial pin 24 provided on the outer peripheral side of the first substrate portion 26a soldered in the first substrate portion connecting step at the time of assembly is applied. Remove. When the removal of the solder of the coaxial shield pin land 53 is completed, the solder of the single wire pin land 52 and the single wire pin 23 of the first substrate portion 26a are transferred from the outer peripheral side of the first substrate portion 26a to the central portion of the single wire pin land 52. Remove in order. In this way, by removing the solder from the pin land arranged on the outer peripheral side of the first board portion 26a sequentially toward the central portion, the operation is simplified and the efficiency is improved.

  As described above, according to the present invention, it is possible to simplify the assembly work of the electrical connector, the operation check, the repair work, and the like, and to shorten the work time, the electrical connector of the endoscope, the endoscope, and the electrical It has become possible to provide a method for assembling the connector.

  That is, the electrical connector 10 includes a surface to which the single wire pin 23 and the coaxial pin 24 as connection terminals connected to the video processor 106 that is an external device are connected, and the signal wire 30 of the cable wire 29 extending from the endoscope. By providing the connector substrate 26 having a surface with the connector 27 to which the cable line connector 28 connected to the end is attached and detached, the operation of the endoscope can be confirmed by a simple operation only of the attachment and detachment of the cable line connector 28. Repair is possible. In the assembly of the connector board 26 to the electrical connector 10, the connection of the single wire pin 23, the coaxial pin 24, and the connector board 26 allows the connector board 26 to be held in a plane with respect to the single wire pin 23 and the coaxial pin 24, and The soldering work of the single wire pin 23 and the coaxial pin 24 can be performed in order from the center of the connector board 26 to the outer peripheral side, and the efficiency of the assembly work and repair work of the connector board 26 is improved. Further, the end of the signal line 30 of the cable line 29 extending from the endoscope and the cable line connector 28 are soldered in a state where the cable line 29 is placed flat on the cable line connector 28. And the efficiency of soldering work is improved.

  In addition, the electrical connector 10 of the endoscope of the present invention is connectable with the cable line connector 28 and the cable line connector 28 such as the scope connector signal line 30a, the operation part signal line 30b, and the insertion part signal 30c of the cable line 29. By providing the connector substrate 26 having the connector 27 on the scope connector 113 of the universal cord 110 having a space that can be shielded and shielded by the shield frame 19 and the shield lid 20, characteristics due to electromagnetic compatibility are advantageous.

  Furthermore, the cable wires 29 such as the scope connector signal line 30a, the operation part signal line 30b, and the insertion part signal 30c swing within the universal cord 110 in accordance with the operation of the operation part 109 and the insertion part 108 of the endoscope 102. However, since the cable wire 29 in the vicinity where the cable wire connector 28 is provided is fixed to the shield cover 20 by the cable wire retaining plate 21, the swinging of the cable wire 29 is caused by the cable wire connector 28 and the connector substrate 26. This can be avoided from disconnection of the cable line connector 28 or disconnection between the cable line connector 28 and the signal line 30 without directly affecting the connector 27.

  In the above-described embodiment of the present invention, the video processor 106 which is a signal processing device as an external device and the light source device 103 have been described separately. However, the video processor 106 which is a signal processing device is described. And the light source device 103 can be used for an external device integrally formed.

[Appendix]
According to the embodiment of the present invention described in detail above, the following configuration can be obtained.

(Supplementary note 1) An electrical connector for an endoscope provided for connecting to an external device used in combination with the endoscope on a connection cable extending from the operation section of the endoscope,
A connection member to which a terminal from the external device is electrically connected is connected to one surface, and on the other surface side is an insertion portion of the endoscope and an end portion of the cable wire extending from the operation portion side. An electrical connector for an endoscope, comprising a board having a connector to which a cable line connector to be connected is detachably connected.

  (Additional remark 2) The said board | substrate has at least the 1st board | substrate part to which the said connection member is connected, and the 2nd board | substrate part in which the said connector is provided at least, and bend | folds so that at least one part may mutually overlap The endoscope electrical connector according to appendix 1, wherein the electrical connector is formed of a single flexible substrate.

  (Additional remark 3) At least one part of the said connection member inserts the hole formed in the said 1st board | substrate part, the 1st conductor connected to the said 2nd board | substrate part, and this 1st conductor The endoscope electrical connector according to claim 2, wherein the electrical connector is configured by a second conductor that is arranged substantially coaxially with each other and connected to the first substrate portion.

  (Additional remark 4) The said connection member consists of a some single wire terminal and a coaxial terminal, a single wire terminal is penetrated and connected to the center part of the said board | substrate part, and a coaxial terminal is penetrated and connected to the outer peripheral part along the outer edge of the said board | substrate part. The electrical connector for an endoscope according to any one of appendix 1 or 2, wherein the electrical connector is configured as described above.

  (Additional remark 5) The electrical connector of the additional remark 4 characterized by arrange | positioning so that the several single wire terminal and coaxial terminal of the said connection member may be penetrated and connected to the said board | substrate part substantially symmetrically.

  (Supplementary Note 6) A connection land is formed on the first substrate portion to which the second conductor of the connection member is connected so that the second conductor can be electrically connected from the outer edge side of the first substrate portion. The electrical connector for an endoscope according to appendix 3, wherein: is formed.

(Supplementary note 7) an insertion part to be inserted into the subject;
An operation portion provided on the proximal end side of the insertion portion;
A connection cable extending from the operation unit and provided with an electrical connector for connecting to an external device;
A cable wire extending through the connection cable and extending from the insertion portion and the operation portion side,
A cable line connector provided at the end of this cable line;
A board provided on the electrical connector, having one side connected to a connecting member to which a terminal from the external device is electrically connected, and the other side to which a cable line connector of the cable line is detachably connected When,
The endoscope characterized by having.

  (Supplementary Note 8) The cable line connector includes a cable line connection part to which the cable line is electrically connected, and a connection terminal part to be detachably connected to the connector of the board. The endoscope according to appendix 7, wherein the connection terminal portion is integrally formed using a flexible substrate.

  (Supplementary Note 9) The cable line connector is formed in a substantially T-shape, and a cable line connection part in which a connection land to which a plurality of signal lines of the cable line are connected is formed, and is substantially orthogonal to the cable line connection part. A connecting terminal portion that is formed so as to extend and is detachably connected to the connector of the substrate, and a holding portion that is provided at both ends of the cable wire connecting portion and holds the cable wire connecting portion in a substantially cylindrical shape, The endoscope according to appendix 7, wherein the endoscope is integrally formed using a flexible substrate.

  (Additional remark 10) The endoscope of Additional remark 7 or 8 characterized by the guide part which guides the connection direction to the connector of the said board | substrate being provided in the connection terminal part of the said cable wire connector.

  (Additional remark 11) The said cable wire connector is formed in the substantially rectangular shape, the cable wire connection part to which the said cable wire is connected, the connection terminal part connected detachably to the connector of the said board | substrate, and this connection terminal part The endoscope according to appendix 7, wherein the endoscope has a retaining portion formed in the periphery, and is integrally formed using a flexible substrate.

  (Additional remark 12) The said cable wire connector has the parameter | index which identifies the attachment / detachment direction to the connector of the said board | substrate, or the attachment / detachment front and back, The internal view in any one of Additional remark 9 thru | or 11 mirror.

(Supplementary note 13) One side is connected to a connection member that is connected to a connection cable extending from the operation unit of the endoscope and a terminal from an external device that uses the endoscope in combination with the endoscope. A first board part and a second board part provided on the other side with connectors to which a cable wire connector provided at the end of the cable line extending from the insertion part of the mirror and the operation part is detachably connected; Is a method of assembling an integrally formed board to an electrical connector,
A connection member to which a terminal from the external device is electrically connected is inserted into a hole formed in the first substrate portion, and the connection member and a land provided around the hole are connected to each other. 1 substrate part connecting step;
A connection member protruding from the first substrate portion by bending the second substrate portion so as to partially overlap the first substrate portion connected in the first substrate portion connecting step. A second substrate connecting step for inserting the connecting member and a land provided around the hole into the hole formed in the second substrate,
A cable line connector mounting step of mounting the cable line connector on a connector provided on the substrate connected in the second substrate portion connection step;
A method for assembling an electrical connector, comprising:

  (Supplementary Note 14) In the first substrate connecting step, the connection between the connecting member inserted into the hole of the first substrate and the land around the hole is connected to the first substrate. 14. The electrical connector assembling method according to appendix 13, wherein the electrical connector is performed in the order from the center portion toward the outer edge of the first board portion.

  (Supplementary Note 15) In the first board part connecting step, the connection member inserted into the hole of the first board part of the board and the land around the hole are connected to a single line of the connection member. 14. The electrical connector assembling method according to appendix 13, wherein the assembly is performed in the order of the terminal member to the coaxial terminal member.

The longitudinal cross-sectional view which shows the structure of the electrical connector of the endoscope of one Embodiment of this invention. The top view which shows the state which attached the connector board | substrate in the shield frame of the electrical connector of the endoscope of one Embodiment of this invention. The structure of the connector board | substrate used for the electrical connector of the endoscope of one Embodiment of this invention is shown, Fig.3 (a) is a top view on the surface side, FIG.3 (b) is a top view on the back side. The longitudinal cross-sectional view which shows the structure of the single wire pin used for the electrical connector of the endoscope of one Embodiment of this invention, and a coaxial pin. Sectional drawing explaining the positional relationship of the board | substrate of the single wire pin used for the electrical connector of the endoscope of one Embodiment of this invention, a coaxial pin, and a connector. The top view which shows the structure of the cable wire connector used for the electrical connector of the endoscope of one Embodiment of this invention. The top view which shows the structure of the 1st modification of the cable wire connector used for the electrical connector of the endoscope of one Embodiment of this invention. The top view which shows the structure of the 2nd modification of the cable wire connector used for the electrical connector of the endoscope of one Embodiment of this invention. The top view explaining the connection state of a signal wire | line and the mounting state to a connector in the 2nd modification of the cable wire connector used for the electrical connector of the endoscope of one Embodiment of this invention. The conceptual diagram which shows the concept of a structure of the conventional electronic endoscope apparatus. The longitudinal cross-sectional view which shows the structure of the electrical connector of the conventional endoscope.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Electrical connector 11 Base 12 Flange 14 Cover member 15 Insulator 16 Board | substrate 19 Shield frame 20 Shield cover 23 Single wire terminal (single wire pin)
24 Coaxial terminal (coaxial pin)
25 Post pin 26 Connector board 27 Connector 28 Cable line connector 29 Cable line 30 Signal line (30a scope connector signal line, 30b operation part signal line, 30c insertion part signal)
Attorney Susumu Ito

Claims (12)

An electrical connector of an endoscope provided for connecting to an external device used in combination with the endoscope, to a connection cable extending from an operation unit of the endoscope,
A flexible sheet having a first substrate portion and a second substrate portion and formed by bending so that at least a part of the back surfaces of the first substrate portion and the second substrate portion face each other. A substrate constituted by a substrate;
Terminals from the external device are electrically connected, and a connection member that is erected on the one surface side of the substrate consisting of the front surface of the first substrate portion and the back surface of the second substrate portion,
A cable wire connector connected to an insertion portion of the endoscope and an end portion of a cable wire extending from the operation portion side is detachably connected, and the back surface of the first substrate portion and the second substrate portion A connector provided on the other surface side of the substrate made of a surface;
An electrical connector for an endoscope , comprising: The connecting member is
A single wire terminal member that is inserted into a hole formed in the first substrate portion and soldered to a land provided in the first substrate portion;
A first conductor that is inserted through a hole formed in the first substrate portion and soldered to a land provided in the second substrate portion; and is disposed substantially coaxially with the first conductor. A coaxial terminal member constituted by a second conductor soldered to a land provided on the first substrate portion;
The endoscope electrical connector according to claim 1, comprising: The single wire terminal member is
A projection that is inserted into a hole formed in the first substrate portion and protrudes toward a back surface side of the first substrate portion; and provided on the one surface side of the projection, the first substrate A step portion having an outer diameter larger than the inner diameter of the hole portion formed in the portion and abutting the surface of the first substrate portion,
The first conductor of the coaxial terminal member is
A protrusion that is inserted into a hole formed in the second substrate portion and protrudes toward the other surface; and provided on the one surface side of the protrusion and formed on the second substrate portion. The endoscope according to claim 2 , further comprising: a step portion having an outer diameter larger than an inner diameter of the hole portion and a back surface of the second substrate portion being in contact with the step portion . Electrical connector. The electrical connector for an endoscope according to claim 2, wherein the coaxial terminal member is disposed on an outer edge of the substrate. An insertion part to be inserted into the subject;
An operation portion provided on the proximal end side of the insertion portion;
A connection cable extending from the operation unit and provided with an electrical connector for connecting to an external device;
A cable wire extending through the connection cable and extending from the insertion portion and the operation portion side,
A cable line connector provided at the end of this cable line;
Comprising
The electrical connector is
A flexible sheet having a first substrate portion and a second substrate portion and formed by bending so that at least a part of the back surfaces of the first substrate portion and the second substrate portion face each other. A substrate constituted by a substrate;
Terminals from the external device are electrically connected, and a connection member that is erected on the one surface side of the substrate consisting of the front surface of the first substrate portion and the back surface of the second substrate portion,
The cable line connector is detachably connected, and a connector provided on the other surface side of the substrate comprising the back surface of the first substrate unit and the surface of the second substrate unit;
An endoscope comprising the above. The cable line connector has a cable line connection part to which the cable line is electrically connected, and a connection terminal part to be detachably connected to the connector of the board, and the cable line connection part and the connection terminal part are connected to each other. The endoscope according to claim 5, wherein the endoscope is integrally formed using a flexible substrate. The cable line connector is formed in a substantially T shape, and a cable line connection part in which a connection land to which a plurality of signal lines of the cable line are connected is formed, and extends substantially orthogonally from the cable line connection part. A connection terminal portion formed so as to be detachably connected to the connector of the substrate, and a holding portion that is provided at both ends of the cable wire connection portion and holds the cable wire connection portion in a substantially cylindrical shape, The endoscope according to claim 5, wherein these are integrally formed using a flexible substrate. The endoscope according to claim 6 or 7, wherein a guide portion for guiding a connection direction of the board to the connector is provided in the connection terminal portion of the cable line connector. The cable line connector is formed in a substantially rectangular shape, and is formed around a cable line connection part to which the cable line is connected, a connection terminal part that is detachably connected to the connector of the board, and the connection terminal part. The endoscope according to claim 5, further comprising: a retaining portion that is integrally formed using a flexible substrate. A single flexible substrate having a first substrate portion and a second substrate portion and bendable so that at least a part of the back surfaces of the first substrate portion and the second substrate portion face each other; A configured substrate; and
A terminal from an external device that uses the endoscope in combination with the endoscope is electrically connected to the connection cable extending from the operation portion of the endoscope, and the surface of the first substrate portion and the first A connecting member erected on the one surface side of the substrate consisting of the back surface of the substrate portion of 2;
A cable wire connector provided at the end of the cable wire extending from the insertion portion and the operation portion side of the endoscope is detachably connected, from the back surface of the first substrate portion and the surface of the second substrate portion. A connector provided on the other surface side of the substrate;
An electrical connector assembly method comprising:
The connection member is inserted into a hole formed in the first substrate portion from the surface side of the first substrate portion, and the connection member and a land provided around the hole are soldered. Board part connection process of
Bending at least so that the back surface of the second substrate portion faces the back surface of the first substrate portion connected in the first substrate portion connecting step, and protrudes from the first substrate portion. A second board part connecting step of inserting a part of the connecting member into a hole formed in the second board part and soldering the connecting member and a land provided around the hole;
A cable line connector mounting step of mounting the cable line connector on the connector provided on the other surface side of the substrate soldered in the second substrate portion connection step;
A method for assembling an electrical connector, comprising: In the first board part connecting step, soldering of the connecting member inserted into the hole of the first board part and a land around the hole is performed from a central part of the first board part. The electrical connector assembling method according to claim 10, wherein the electrical connector assembly is performed in the order of the outer edge direction of the first board portion. The connection member is composed of a single-wire terminal member and a coaxial terminal member disposed on an outer edge of the substrate,
In the first board part connecting step, the connection member inserted into the hole of the first board part and the land around the hole are soldered from the single wire terminal member of the connection member to the coaxial terminal. The electrical connector assembling method according to claim 10, wherein the electrical connector is performed in the order of the members.

Images