JP2003031279A - Equipment shield connector - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To prevent deformation of a mounting portion of a connector body due to tightening of a bolt. SOLUTION: A bolt 4 penetrated through a bolt penetration part 30.
5 is screwed into the female screw hole 13, and the connector body 26 is fixed to the shield case 11 by sandwiching the mounting portion 29 between the head 45 </ b> H of the bolt 45 and the shield case 11. In a region where the head 45H of the bolt 45 abuts on the mounting portion 29, a metal collar 31 extending between the front and back surfaces of the mounting portion 29 is provided. Head 45H of bolt 45
Since the clamping pressure between the shield case 11 and the shield case 11 is received not by the attachment portion 29 but by the metal collar 31, the attachment portion 29 may be deformed and the connector body 26 may not be fixed to the shield case 11. There is no.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shield connector for equipment.

[0002]

2. Description of the Related Art As a shield connector for a device connected to a shield device such as an inverter device in an electric vehicle, a wire-side terminal fixed to a terminal of a shielded wire is inserted into a mounting hole of a shield case of the device to form a shield case. There is a structure in which the shield member of each shielded wire is connected to the shield case while being connected to the device-side terminal inside. In this shield connector, the work of connecting the shield member to the shield case is performed. Since it has to be repeated as many times as the number of, it is troublesome.

Therefore, a cylindrical seal member for collectively enclosing a plurality of non-shielded electric wires, an electric wire side terminal fixed to each electric wire, and an outer periphery fitted to each electric wire side terminal by resin molding. It is conceivable that the connector main body is provided with a mounting portion projecting from. When installing this device shield connector in the inverter device, insert the connector body into the mounting hole of the shield case,
The connector body is fixed to the shield case by screwing the bolts passed through the bolt holes of the mounting part into the female screw holes of the shield case, and the wire side terminals are connected to the device side terminals provided on the inverter. Attach the end of the seal member to the shield case. According to this device shield connector, the work of attaching the shield member to the shield case can be performed only once.

[0004]

As described above, when the bolt is inserted into the bolt hole of the mounting portion and the head portion of the bolt presses and fixes the hole edge portion of the bolt hole to the shield case, the structure is fixed. Is crushed and deformed when the hole edge of the resin bolt hole is pinched between the head of the metal bolt and the metal shield case, and the connector body cannot be fixed to the shield case. There is. The present invention has been devised in view of the above circumstances, and an object thereof is to prevent deformation of the mounting portion of the connector body due to tightening of bolts.

[0005]

According to a first aspect of the present invention, there is provided a device in which a shield case surrounding a plurality of device-side terminals is provided with female screw holes and mounting holes corresponding to the device-side terminals. Which are attached to each other, enclose a plurality of electric wires in a lump, and have a terminal member attached to the shield case, and a shield member individually attached to the terminal portions of the electric wires. An electric wire side terminal that is fixed and is capable of connecting to the device side terminal, and is externally fitted to each electric wire side terminal individually by resin molding,
The connector body is pierced through the mounting hole, and the mounting portion is formed from the outer periphery of the connector body, the mounting portion is formed with a bolt penetrating portion, the bolt penetrating the bolt penetrating portion into the female screw hole. When the connector body is fixed to the shield case by screwing together and sandwiching the mounting portion between the head portion of the bolt and the shield case, the head portion of the bolt in the mounting portion contacts. In the contact area, a metal collar extending between the front and back surfaces of the mounting portion is provided.

According to a second aspect of the invention, in the first aspect of the invention, the collar is integrated with the mounting portion by resin molding. According to a third aspect of the invention, in the second aspect of the invention, the bolt penetrating portion is notched so as to open to the outer periphery of the mounting portion in the same direction as the mold opening direction of the resin mold. It has a structure. According to a fourth aspect of the present invention, in any one of the first to third aspects, the collar is provided along an inner surface of the bolt penetrating portion that faces an outer periphery of the bolt.

[0007] The invention of claim 5 is defined by claims 1 to 4.
In any one of the above aspects, a plurality of the connector main bodies are connected to each other via the mounting portion.

[0008]

The operation and effect of the present invention [Invention 1] The clamping force between the head of the bolt penetrating the bolt penetrating portion and the shield case is received not by the mounting portion but by the metal collar. Since the mounting portion does not receive a pinching force, it does not deform, and there is no fear that the connector body cannot be fixed to the shield case due to the deformation of the mounting portion.

[Invention of Claim 2] Since the collar is integrated with the mounting portion of the connector body in the step of resin-molding the wire-side terminal, compared with the case where the collar is assembled to the molded connector body. Therefore, the number of manufacturing processes can be reduced. [Invention of Claim 3] When the bolt penetrating portion is in the form of a hole closed over the entire circumference, a slide die structure which is die-cut in the penetrating direction of the hole is required, but in the present invention,
Since the bolt penetrating portion is notched in the same direction as the mold opening direction of the mold, the slide mold is not required, and the mold cost can be reduced.

[Invention of Claim 4] Since the collar is provided along the inner surface of the bolt penetration portion facing the outer circumference of the bolt, the inner circumference of the bolt penetration portion is damaged due to contact with the outer circumference of the bolt. It is prevented from being deformed or deformed. [Invention of Claim 5] Since a plurality of connector bodies are connected by the mounting portion, the work of fitting into the mounting hole can be done only once, and the workability is good.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] A first embodiment of the present invention will be described below with reference to FIGS.

Shield connector 20 for equipment of this embodiment
Is attached to the inverter device 10 (equipment that is a constituent of the present invention) of an electric vehicle. Inverter device 10
Is the inverter main body 1 in the conductive shield case 11.
6, a plurality of circular mounting holes 12 are formed side by side (horizontally) on the side wall of the shield case 11, and a blind alley (shield case) attached to each mounting hole 12 is formed. A female screw hole 13 having a form not opened) is formed on the inner surface of 11. Inside the shield case 11, three device-side terminals 14 fixed to the inverter body 16 stand by with the tip portions of the bolt holes 15 formed facing the mounting holes 12. The device-side terminal 14 is composed of a busbar made of a thick metal plate material and having high rigidity. When the device-side terminal 14 is fixed to the inverter body 16, the plate surface is oriented horizontally and the bolt holes 15 are vertically penetrated. ing.

The shield connector 20 for equipment encloses a plurality of electric wire side terminals 21, a connector body 26 integrated with each electric wire side terminal 21, one shield shell 40, and a plurality of electric wires 25 collectively. A cylindrical shield member 41 is provided. In addition, in FIG. 5, only one electric wire 25 surrounded by the shield member 41 is shown, but a plurality of electric wires 25 are arranged in a direction orthogonal to the plane of the drawing.
5 are lined up and housed together in the shield member 41.

Similar to the device-side terminal 14, each wire-side terminal 21 is composed of a busbar having a high rigidity and made of a thick metal plate material, and has an elongated shape in the front-rear direction as a whole.
A bolt hole 23, which is an ellipse elongated in the front-rear direction, is formed in the connecting portion 22 at the front end of the wire-side terminal 21, and
An electric wire connecting portion 24 having an open barrel shape is formed at the rear end portion. An extended end of an electric wire 25 extending from a wheel motor (not shown) and having no shield function is fixed to the electric wire connecting portion 24. The electric wire 25 is obtained by covering a conductor 25A formed by twisting a plurality of metal wires with an insulating coating 25B made of resin, and the insulating coating 25B is peeled off at the extended end portion to expose the conductor 25A. The exposed conductor 25A is crimped to the wire connecting portion 24.

The plurality of electric wire side terminals 21 are respectively provided with
The connector body 26 is individually fitted by resin molding. The connector body 26 has a columnar shape with its axis oriented in the front-rear direction (the length direction of the terminal portion of the electric wire 25 that is crimped to the electric wire connecting portion 24), and the seal groove 28 for waterproofing is provided in the ring groove 27 on the outer periphery thereof. Is installed. The positions of the ring groove 27 and the seal ring 28 are set so as to correspond to the wire connecting portion 24 in the length direction of the connector body 26. From the front end surface of the connector body 26, the connection portion 22 of the wire-side terminal 21 in which the bolt hole 23 is formed is in a posture in which the plate surface thereof is oriented horizontally (in a posture in which the bolt hole 23 penetrates in the vertical direction). It is protruding.
Further, the portion of the electric wire 25 covered with the insulating coating 25B is led out from the rear end surface of the connector body 26.

A plate-shaped mounting portion 29 projecting upward is integrally formed at the rear end portion of the outer periphery of the connector body 26 (position behind the ring groove 27). A bolt penetrating portion 30 corresponding to the female screw hole 13 in a state where the connector body 26 is fitted in the mounting hole 12 is formed at an upper end portion of the mounting portion 29. The bolt penetrating portion 30 penetrates between both front and back surfaces (between front and rear surfaces) of the mounting portion 29, and is cut out in a groove shape downward from the outer periphery of the upper end portion of the mounting portion 29. The inner peripheral shape as viewed in the front-rear direction is substantially U-shaped.

A substantially U-shaped metal collar 31 is attached to the mounting portion 29 along the inner circumference of the bolt penetration portion 30 (so as to be exposed at the inner circumference of the bolt penetration portion 30). It is provided across both front and rear surfaces (both front and back surfaces) of the portion 29, and the front and rear surfaces of the collar 31 are flush with the front and rear surfaces of the mounting portion 29, respectively. The collar 31 is integrated with the connector body 26 (mounting portion 29) by the same mold 35 in the step of resin-molding the connector body 26 on the wire-side terminal 21 as described above.

The mold 35 for resin molding includes a fixed mold 36 for molding the lower half of the outer periphery of the connector body 26, and a movable mold 37 for molding the upper half of the outer periphery of the connector body 26, the mounting portion 29 and the bolt penetration portion 30. Consists of. In the molding (resin molding) process, the electric wire connecting portion 24 of the electric wire side terminal 21.
And the end portion of the electric wire 25 crimped to the electric wire connecting portion 24 are set in the fixed mold 36, and the movable mold 37 is set on the fixed mold 36.
The mold is clamped so as to cover the mold, and a resin material (not shown) is injected between the molds 36 and 37. As a result, the connector body 26, the mounting portion 29, and the bolt penetration portion 30 are molded into a predetermined shape, and the metal wire-side terminal 21, the metal collar 31, and the connector body 26 are integrated by resin molding. It After that, the mold is opened by moving the movable mold 37 upward. This movable type 37
The mold opening direction is the same as the direction in which the bolt penetration portion 30 opens toward the outer peripheral upper end portion of the mounting portion 29.

A metallic shield shell 40 is fixed to the end portion of a cylindrical shield member 41 that encloses a plurality of electric wires 25 at once. The shield shell 40 has a tubular shape as a whole, and a terminal portion of the shield member 41 is externally fitted to the outer periphery of the rear end portion of the shield shell 40.
The caulking ring 42 is fitted on the outer peripheral surface of the shield shell 1, and the caulking ring 42 is caulked onto the outer periphery of the shield shell 40, whereby the shield shell 40 and the shield member 41 are fixed to each other. Further, the shield shell 40 is provided with a fixing portion 43 which vertically projects from an opening edge on the front end side thereof,
The fixing portion 43 is screwed into a female screw hole (not shown) formed on the outer surface of the shield case 11 with a bolt 44 penetrating the fixing portion 43, whereby the shield case 1
It is fixed to 1 so as to be able to conduct.

Next, the operation of this embodiment will be described. When the device shield connector 20 is attached to the inverter device 10, the wire-side terminal 21 and the connector body 26 integrated with the wire-side terminal 21 are passed through the mounting hole 12 with the wire-side terminal 21 facing forward. Are fitted together and the mounting part 2
9 is brought into contact with the outer surface of the shield case 11,
The bolt penetration portion 30 is attached to the female screw hole 13 of the shield case 11.
Corresponding coaxially with. As a result, the connecting portion 22 at the front end of the wire-side terminal 21 is oriented horizontally and overlaps the upper surface of the device-side terminal 14, and the bolt hole 2 of the wire-side terminal 21 is formed.
3 corresponds to the bolt hole 15 of the device-side terminal 14.

After that, the bolt 45 inserted from the rear into the bolt penetration portion 30 is screwed into the female screw hole 13. Then, the head portion 45H of the bolt 45 comes into contact with the rear surface of the attachment portion 29, and the attachment portion 29 is attached to the head portion 45H and the shield case 11.
Sandwiched between the outer surface of the. At this time, the metal collar 31 is provided in the area of the attachment portion 29 where the head portion 45H abuts.
Therefore, the clamping force due to the tightening of the bolt 45 acts on the metal collar 31, and the clamping force does not reach the mounting portion 29 made of synthetic resin. In this way, the collar 31 is pinched between the head portion 45H of the bolt 45 and the shield case 11, so that the mounting portion 29 and the connector body 26 integrated with the collar 31 are fixed to the shield case 11. Will be.

After fixing all the connector bodies 26 to the shield case 11 in this way, bolts 46 are passed through the bolt holes 15 and 23 of the device-side terminal 14 and the wire-side terminal 21 in the shield case 11, and A nut 47 is screwed onto the bolt 46, so that the terminals 14 and 21 are electrically connected. The shield shell 40 is attached to the shield case 11 before and after the connection of the terminals 14 and 21. As described above, the attachment of the device shield connector 20 to the inverter device 10 is completed.

As described above, in the present embodiment, the metal collar 31 extending between the front and rear surfaces (between front and back surfaces) of the mounting portion 29 is provided in the area of the mounting portion 29 where the head portion 45H of the bolt 45 abuts. The pinching force between the shield case 11 and the head portion 45H of the bolt 45 penetrating the bolt penetrating portion 30 is received not by the mounting portion 29 but by the metal collar 31.
Therefore, the mounting portion 29 made of synthetic resin is deformed due to the clamping force due to the tightening of the bolt 45, and the deformation of the mounting portion 29 causes the connector body 2 to be deformed.
There is no fear that 6 cannot be fixed to the shield case 11.

Further, since the collar 31 is integrated with the mounting portion 29 by resin molding, the collar 31 can be integrated with the mounting portion 29 of the connector body 26 in the step of resin molding the wire side terminal 21. . Therefore, the number of manufacturing steps can be reduced as compared with the case where the collar is assembled to the molded connector body. Also,
In the case where the bolt penetration portion has a hole shape closed over the entire circumference, a slide mold structure that is die-cut in the hole penetration direction (the front-back direction in this embodiment) is required. Then, the bolt penetration part 30 is the mold 3 for resin molding.
Since the notch is formed so as to open to the outer periphery of the mounting portion 29 in the same direction as the mold opening direction of 5, the slide mold is unnecessary, and only the fixed mold 36 and the movable mold 37 are required. Therefore, the die cost can be reduced.

Since the collar 31 is provided along the inner surface of the bolt penetrating portion 30 which faces the outer periphery of the bolt 45, the inner peripheral surface of the bolt penetrating portion 30 abuts against the outer periphery of the bolt 45 and is damaged or deformed. Is prevented. [Second Embodiment] Next, a second embodiment of the present invention will be described with reference to FIG. In this embodiment, the bolt penetration portion 52 and the collar 53 of the connector main body 50 are configured differently from those of the first embodiment. Since the other configurations are the same as those of the first embodiment, the same reference numerals are given to the same configurations, and the description of the structure, operation, and effect is omitted.

The bolt penetrating portion 52 of the second embodiment has a circular shape and a "hole" shape closed over the entire circumference. In other words, the bolt penetrating portion 52 does not open to the outer periphery of the mounting portion 51. Further, the collar 53 has a ring shape, and has a shape along the inner circumference of the bolt penetration portion 52, that is,
It is in such a form that it is exposed on the entire inner circumference of the bolt penetration portion 52. The front and rear surfaces of the collar 53 are flush with the front and rear surfaces of the mounting portion 51.

[Third Embodiment] Next, a third embodiment of the present invention will be described with reference to FIGS. In the third embodiment, the connector main body 60 is individually packaged for each of the three electric wire side terminals 21, and
Seal ring 28 on the outer circumference of one connector body 60
The plate-shaped mounting portion 61 radially outward from a position rearward of the mounting portion 61.
The mounting portion 61 has a common single plate shape so as to connect the three connector bodies 60. Therefore, the portions of the three connector main bodies 60 in front of the mounting portion 61 and in the rear of the mounting portion are independent of the other connector main bodies 60. Further, the three connector bodies 60 and the one mounting portion 61 are integrally molded by resin molding with one mold. The mounting portion 61 is the connector body 60.
And a pair of left and right bolt penetrating portions 62 are formed at the upper end portion of the mounting portion 61. Similar to the second embodiment, the bolt penetrating portion 62 has a circular closed “hole” shape and does not open to the outer periphery of the mounting portion 61. A ring-shaped collar 63 is fixed to each bolt penetrating portion 62 along the inner periphery of the bolt penetrating portion 62 so as to be flush with the front and rear end surfaces of the mounting portion 61. The collar 63 may be resin-molded together with the connector body 60 and the mounting portion 61, and the collar 63 may be fitted by press fitting after molding. In the present embodiment, since the three connector bodies 60 are connected by the common attachment portion 61, the attachment work to the attachment hole 12 can be performed by one action to attach the three connector bodies 60 at the same time. Therefore, it is good for work. Further, since it is not necessary to provide one bolt penetrating portion 62 formed on the attachment portion 61 for each connector main body 60, the number of bolt penetrating portions 62 can be made smaller than the number of connector main bodies 60. It is also possible to reduce the number of tightening work steps. Since the configuration other than the above is the same as that of the first embodiment, the same components are designated by the same reference numerals, and the description of the structure, action, and effect will be omitted.

[Fourth Embodiment] Next, a fourth embodiment of the present invention will be described with reference to FIGS. In the third embodiment, the portions of the three connector main bodies 60 in front of the mounting portions 61 are configured to project independently of the other connector main bodies 60, and each connector main body 60 has
While the seal ring 28 is individually attached to each of them, in the fourth embodiment, a horizontally elongated circular seal portion 72 common to the three connector bodies 70 is formed on the front surface of the attachment portion 71 in a protruding manner. The connector main body 70 is connected to the other connector main body 70 in front of the mounting portion 71.
Only the portion in front of the seal portion 72 is configured to project independently of and. Such a seal portion 72
A seal groove 73 is formed on the outer periphery of the seal groove 73.
An oval seal ring 74 is attached to the. On the other hand, the mounting hole 76 on the side of the inverter device 75 (equipment) is opened in an oval shape so as to fit the sealing portion 72, and the seal ring 74 is brought into close contact with the inner peripheral surface of the mounting hole 76, whereby a sealing state is established. . Since the bolt penetrating portion 62 and the collar 63 other than the above are the same as those in the third embodiment, the same components are designated by the same reference numerals, and the description of the structure, action, and effect will be omitted.

[Other Embodiments] The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition to the above, various modifications can be made without departing from the scope of the invention. (1) In the above embodiment, the collar is integrated with the mounting portion at the time of resin molding, but according to the present invention, the collar may be assembled to the molded mounting portion by press fitting or the like.

(2) In the above embodiment, the case where the waterproof seal ring is provided has been described, but the present invention can also be applied to a non-waterproof device shield connector that is not provided with the seal ring. (3) In the above embodiment, the case where the connection partner device is the inverter device of the electric vehicle has been described, but the present invention can also be applied to the case where a device other than the inverter device is the connection partner device. (4) In the above embodiment, the collar is provided so as to be exposed over the entire inner circumference of the bolt penetration portion, but according to the present invention, it may be partially exposed at the inner circumference of the bolt penetration portion. It is also possible to adopt a form in which it is not exposed at any portion of the inner circumference of the bolt penetration portion.

(5) In the above embodiment, the front and rear surfaces (both front and back surfaces) of the collar are flush with the front and rear surfaces of the mounting portion, but according to the present invention, the front end edge portion of the collar is At least one of the rear edge portions may be configured to project from the front surface or the rear surface of the mounting portion. In addition, when only one of the front and rear edges is projected from the mounting portion, the other edge needs to be flush with the front surface or the rear surface of the mounting portion.

(6) The structure in which the bolt penetration portion of the first embodiment is opened to the outer periphery of the mounting portion can be applied to the third and fourth embodiments. (7) In the third and fourth embodiments described above, the left and right pair of bolt penetrating portions are provided, but according to the present invention, the number of bolt penetrating portions may be three or more.

[Brief description of drawings]

FIG. 1 is a perspective view of a connector body according to a first embodiment.

FIG. 2 is a partially cutaway front view showing a relationship between a mold and a connector body.

FIG. 3 is a plan view of the connector body.

FIG. 4 is a side view of the connector body.

FIG. 5 is a vertical cross-sectional view showing a state in which it is attached to an inverter device.

FIG. 6 is a perspective view of a connector body according to the second embodiment.

FIG. 7 is a perspective view of a third embodiment.

FIG. 8 is a plan view of the third embodiment.

FIG. 9 is a perspective view of a fourth embodiment.

FIG. 10 is a plan view of the fourth embodiment.

[Explanation of symbols]

10 ... Inverter device (equipment) 11 ... Shield case 12 ... Mounting hole 13 ... Female screw hole 14 ... Device side terminal 20 ... Shield connector for equipment 21 ... Wire side terminal 26 ... Connector body 29 ... Mounting part 30 ... Bolt penetration part 31 ... Color 35 ... Mold 45 ... bolt 45H ... head of bolt 50, 60, 70 ... Connector body 51, 61, 71 ... Mounting portion 52, 62 ... Bolt penetration part 53, 63 ... Color

Continued front page    (72) Inventor Mio Mizutani             1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi             Auto Network Technical Laboratory Co., Ltd. F term (reference) 5E086 CC31 CC47 DD05 JJ03 LL06                       LL20

Claims (5)

[Claims] 1. A shield case that surrounds a plurality of device-side terminals, wherein the shield case is formed with female screw holes and mounting holes corresponding to the device-side terminals. While collectively enclosing the electric wires of, the terminal part is attached to the shield case, and a shield member individually attached to the terminal parts of the plurality of electric wires to connect the device side terminals. A possible wire side terminal, a connector body that is individually fitted to each wire side terminal by resin molding and penetrates through the mounting hole, and a bolt penetrating portion that is projected from the outer periphery of the connector body. A mounting part that is attached to the bolt penetrating part, and a bolt that penetrates the bolt penetrating part is screwed into the female screw hole, and the mounting part is sandwiched between the head of the bolt and the shield case. And, in the one in which the connector body is fixed to the shield case, in a region of the mounting portion where the head portion of the bolt abuts, a metal collar extending between the front and back surfaces of the mounting portion is provided. A characteristic shield connector for equipment. 2. The shield connector for equipment according to claim 1, wherein the collar is integrated with the mounting portion by resin molding. 3. The bolt penetrating portion is notched so as to open to the outer periphery of the mounting portion in the same direction as the mold opening direction of the resin molding die. Shield connector for the listed equipment. 4. The shield connector for equipment according to claim 1, wherein the collar is provided along an inner surface of the bolt penetrating portion that faces an outer periphery of the bolt. 5. The shield connector according to claim 1, wherein a plurality of the connector main bodies are connected to each other via the mounting portion.