JP2007005233A - Shielded wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide excellent shielding characteristics in a low frequency band, excellent workability of connection between a coaxial cable and a JASO plug and a connector terminal, easy manufacture, and a connection portion between the coaxial cable and a JASO plug and a connector terminal. To provide a shielded wire harness with good adhesion.
In a shielded wire harness 1 in which a JASO plug 3 is connected to one end of a coaxial cable 2 and a connector terminal 4 is connected to the other end of the coaxial cable 2, the coaxial cable 2 is connected to an external conductor. The layer and the magnetic outer conductor layer are made of a metal braid, and are provided with a multiple metal braid 22 in which a plurality of metal braids are laminated, and the connection between the JASO plug 3 and the coaxial cable 2 peels off the outer sheath 21 of the coaxial cable 2 A shielded wire harness 1 is configured by crimping a crimping part 5, which is a member different from the JASO plug 3, to the outside of the exposed multiple metal braid 22 and crimping the crimping part of the JASO plug 3 to the outside of the crimping part 5. did.
[Selection] Figure 1

Description

  The present invention relates to a shielded wire harness used for an antenna cord or the like for transmitting a reception signal of a radio antenna mounted on an automobile.

  2. Description of the Related Art Conventionally, a shielded wire harness for an antenna cord mounted on an automobile is a radio of an automobile industry standard called “JASO plug” for inserting into a socket provided on a device such as an AM radio at one end of a coaxial cable. A device connection plug is attached, and a connector terminal is crimped to the other end of the coaxial cable. The “JASO plug” is a plug corresponding to the standard of Japan Automobile Industry Standard Radio Plug JASO D507-2.

  As shown in FIGS. 11 (a) and 11 (b), the JASO plug 30 has a center pin 31 inserted into a socket fixed to an insulating collar 32 made of ABS resin, and the surface of the insulating collar 32 is made of a metal shielding case. 33 is covered. A crimping portion 35 for fixing the coaxial cable 100 is connected to the shield case 33 at the end of the JASO plug 30 opposite to the center pin 31 of the shield case 33. The crimping portion 35 is provided with a braid fixing piece 36 formed by cutting a part of a metal plate constituting the crimping portion 35 into a U shape so as to sandwich the braid 116 of the coaxial cable 100.

  As shown in FIG. 12, a conventional coaxial cable 100 includes a core wire 113 composed of an inner conductor 111 and an insulating layer 112 sheathed on the inner conductor 111, an outer conductor layer 114 sheathed on the core wire 113, and an outer conductor layer 114. It is comprised from the outer jacket 115 provided in the outer side. The outer conductor layer 114 is a shield layer, and is composed of a single metal braid knitted into a cylindrical shape in a mesh shape using an annealed copper wire or a tinned annealed copper wire as a strand.

  Conventionally, a coaxial cable and a JASO plug have been connected as follows. First, terminal processing of the coaxial cable 100 is performed as shown in FIG. This is because, after the outer jacket 115 of the coaxial cable 100 is peeled off, the metal braid is peeled off and separated from the core wire 113 to be twisted into a single electric wire to form a shielded wire 116, and the insulating layer 112 of the core wire 113 is peeled off to form an inner part. The conductor 111 is exposed. Next, the inner conductor 111 of the coaxial cable is connected and fixed to the center pin 31 of the JASO plug. Then, the shield wire 116 in which the metal braid is twisted is sandwiched and fixed in the gap formed by causing the braid fixing piece 36 of the crimp portion 35 of the JASO plug 30, and then the crimp portion 35 is crimped from above the coaxial cable 100. Then, the coaxial cable 100 is fixed to the JASO plug 30.

  The connection between the coaxial cable 100 and the connector terminal 107 in the conventional shielded wire harness is reversed by turning a single metal braid (outer conductor layer 114) of the coaxial cable 100 over the jacket 115 as shown in FIG. Let Next, as shown in FIG. 13B, the crimp terminal 108 of the connector terminal 107 was crimped from the folded outer conductor layer 114.

  By the way, the signal transmitted in the antenna code for the reception signal of the radio antenna exists from the frequency range of 500 kHz. On the other hand, since the shield layer of the shield wire harness used for the conventional antenna cord is composed of a single metal braid, the shield performance is insufficient for such a low frequency band. There was a problem of being easily affected by noise. Therefore, a coaxial cable is known which has improved shielding performance in a low frequency band (1 MHz or lower band) (see, for example, Patent Document 1).

  The coaxial cable described in Patent Document 1 includes an inner conductor that transmits a signal, an insulating layer that is sheathed on the inner conductor, an outer conductor layer that is formed of a metal material and is sheathed on the inner conductor via the insulating layer, The outer conductor layer includes a magnetic outer conductor layer and a jacket formed of a magnetic metal material having a larger magnetic permeability than the outer conductor layer. For example, in the coaxial cable of Patent Document 1, the outer conductor layer is composed of a metal braid composed of two tin-plated annealed copper wires, and the magnetic type outer conductor layer is composed of a metal braid composed of one layer of galvanized soft iron wire, It has a shield layer made of multiple metal braids in which metal braids are formed in triplicate.

JP 2004-214137 A

  An attempt was made to replace the conventional coaxial cable with the coaxial cable described in Patent Document 1 for the purpose of countermeasures against noise in the low frequency band of the shielded wire harness. However, in the coaxial cable described in Patent Document 1, since the metal braid is configured not in a single layer but in a triple, when connecting the coaxial cable to the JASO plug, the triple braid is peeled off and separated from the core wire. It is extremely difficult to twist and form a triple braid or twist a triple braid.

  Moreover, when manufacturing a conventional shield wire harness, it was necessary to bend the shield wire in which a single braid was twisted together by bending the braid fixing piece of the crimping part and fix it to the JASO plug. It was a laborious work. Therefore, even if the triple braid of the coaxial cable described in Patent Document 1 is twisted to form one shield wire, the shield wire is formed in the gap formed by causing the braid fixing piece of the JASO plug in the subsequent process. As in the case of a conventional coaxial cable made of a single metal braid, the work of sandwiching the cable is still a time-consuming work.

  On the other hand, when the coaxial cable described in Patent Document 1 is connected to the connector terminal at the end opposite to the JASO plug, the triple metal braid of the coaxial cable is folded and inverted on the jacket, and the folded Attempts were made to crimp the connector terminal onto the crimping part of the connector terminal. However, it is extremely difficult to fold the triple metal braid of the coaxial cable onto the jacket as compared to the single braid.

  Further, when the shielded wire harness is manufactured or used as an in-vehicle antenna cord, the harness is pulled and a load is applied to the connection portion. In order to ensure the connection reliability of the shielded wire harness, the connecting portion between the JASO plug and the connector terminal connected to both ends of the coaxial cable is required to have a sufficient fixing force.

  The problem to be solved by the present invention is excellent in the shielding characteristics in the low frequency band, excellent in workability between the coaxial cable and the terminals such as the JASO plug and the connector terminal, and easy to manufacture. An object of the present invention is to provide a shielded wire harness in which the fixing strength of the part is good.

  In order to solve the above problems, a shielded wire harness according to the present invention includes a center pin and a coaxial cable for insertion into a socket of a radio device at one end of the coaxial cable as in the first aspect of the invention. In a shielded wire harness in which a crimping part of an automobile radio equipment plug comprising a crimping part for fixing is connected and a connector terminal is connected to the other end of the coaxial cable, the coaxial cable is an internal conductor. And an insulating layer sheathed on the inner conductor, a shield layer sheathed on the inner conductor via the insulating layer, and a jacket, the shield layer being an outer conductor layer, and a metal material used for the outer conductor layer A radio equipment connection plug for automobiles having a multilayer structure composed of a magnetic type outer conductor layer formed of a magnetic metal material having a higher magnetic permeability. Coaxial cable connection is made by crimping a crimping part that is a separate member from the radio equipment connection plug of the automobile from the shield layer exposed by peeling off the outer sheath of the coaxial cable, and the coaxial cable is connected. The gist is that the crimping portion of the radio equipment connection plug of the automobile is crimped from above the component.

  In this case, as described in claim 2, the connection between the connector terminal and the coaxial cable is such that the crimping portion of the coaxial connector is crimped from the shield layer exposed by peeling off the outer sheath of the coaxial cable. A suitable example is given.

  According to the shielded wire harness of the first aspect, compared to the conventional shielded wire harness using a coaxial cable having a single metal braid, a coaxial cable having a multilayered shield layer is used. An antenna cord having excellent band shielding characteristics can be configured.

  Further, in the connection of the JASO plug and the coaxial cable, the crimping component which is a member different from the JASO plug is crimped on the shield layer exposed by peeling off the outer sheath of the coaxial cable, and the coaxial cable is connected. Since the crimping part of the JASO plug is crimped on the top, the braid is peeled off from the core wire when connecting to the JASO plug, compared to a shielded wire harness using a coaxial cable having a conventional single metal braid. There is no need to separate and twist the wire into a single electric wire to form a shielded wire, or to bend the braided fixed piece and sandwich the twisted shielded wire. According to the present invention, the end treatment of the coaxial cable is only an operation of removing the jacket, exposing the shield layer, crimping the crimping part directly on the shield layer, and crimping the crimping part to the crimping portion of the JASO plug. The workability at the time of manufacturing the harness is good, and the manufacturing can be easily performed.

  In addition, since the entire circumference of the shield layer is crimped by a crimping part and the whole circumference of the crimping part of the crimping part is crimped by the JASO plug, the JASO plug is connected to the conventional coaxial cable and the JASO plug. Compared with the structure, the coaxial cable and the JASO plug can be securely crimped and joined, so that the electrical connection is also reliable. In addition, since the shield layer is not peeled off from the core wire and is crimped by the crimping part in a state where the shield layer exists on the core wire, the inner conductor is covered with the shield layer, resulting in a decrease in shield performance. I will not.

  Also, as mentioned above, by using a crimping part to connect the coaxial cable and the JASO plug, both can be securely crimped and joined together, resulting in a strong crimping force and excellent mechanical strength. When a force is applied during wiring work of the wire or the harness, it becomes difficult to come off, and a highly reliable shield wire harness can be obtained.

  Further, by using a crimping part for connecting the coaxial cable and the JASO plug, it is possible to use the JASO plug that has been used so far without changing the design.

  Further, as described in claim 2, the connector terminal and the coaxial cable are connected by crimping the crimping portion of the connector terminal on the shield layer having a multilayer structure in which the outer sheath of the coaxial cable is peeled and exposed. In this case, just as with the JASO plug side, it is only necessary to directly press the exposed shield layer from above, and there is no need to turn the shield layer such as a metal braid on the outer cover. Is easy. In addition, since the multi-layer shield layer is pressure-bonded from above, a sufficient fixing force can be obtained between the connector terminal and the coaxial cable.

  Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. As shown in FIG. 1, the shield wire harness 1 is formed by providing a center pin 31 for insertion into a socket of a radio device and a crimping portion 35 for fixing the coaxial cable 2 at one end of the coaxial cable 2. Japan Automotive Industry Standard Radio Plug A radio equipment connection plug (hereinafter abbreviated as JASO plug) 3 corresponding to the JASO D507-2 standard is connected, and a connector terminal 4 is connected to the other end of the coaxial cable 2. .

  As shown in FIG. 2, the connection between the JASO plug 3 and the coaxial cable 2 is performed by pressing the outer cover of the coaxial cable 2 to expose the shield layer (metal braid 22), which is a separate member from the JASO plug. As shown in FIG. 6, the crimping portion 35 of the JASO plug 3 is crimped from above the crimping component 5 to which the coaxial cable 2 is connected.

  As shown in FIGS. 3A to 3C, the crimping part 5 is composed of a pair of crimping pieces and a jacket 51 for crimping the braid. The barrel 52 is connected by a connecting portion 53. The radial length of the braided barrel 51 is formed according to the outer diameter of the braid, and the radial length of the outer barrel 52 is formed according to the diameter of the outer cover 21 of the coaxial cable. Has been. In addition, as shown in FIGS. 3A and 3C, the braided barrel 51 is provided with protrusions 54 and 55 at two opposing positions inside thereof. The crimping part 5 is formed by punching a metal plate having conductivity into a predetermined shape and bending it.

  Also, the braided barrel 51 has one end of the barrel as a chevron as shown in FIG. 3B so that when the barrel is crimped as shown in FIG. And the other end is formed in a valley shape. Further, the total length R in the wire longitudinal direction of the crimping part 5 shown in FIG. 3B can be accommodated in the length L from the rear end of the insulating collar 32 inside the JASO plug 3 shown in FIG. The length is formed.

  FIG. 5A is a sectional view of a side surface of the JASO plug, and FIG. 5B is a rear view of the JASO plug. The JASO plug shown in FIGS. 5 (a) and 5 (b) is the same as the conventional JASO plug 30 shown in FIGS. 11 (a) and 11 (b). As shown in FIGS. 5A and 5B, the JASO plug 3 has a center pin 31 fixed to an insulating collar 32 by insert molding, and the periphery of the insulating collar 32 is covered with a metal shield case 33, so that the shield A crimping portion 35 made up of a pair of crimping pieces is connected to the rear end of the case 33. Further, as shown in FIG. 5 (b), a claw piece 38, 38 is provided in the crimping portion 35 of the JASO plug on the tip side of a pair of opposed crimping pieces. Further, at the rear end of the crimping portion 35, projections 39, 39 projecting in the central axis direction are provided as shown in FIG.

  To connect the coaxial cable 2 and the JASO plug 3, as shown in FIG. 2, first, the outer sheath 21 of the coaxial cable 2 is peeled to process the terminal, and a multi-metal braid 22 (a plurality of metal braids are laminated) Expose the shield layer. Next, the crimping component 5 is placed on the coaxial cable 2 such that the braided barrel 51 is positioned on the multiple metal braid 22 and the jacket barrel 52 is positioned on the jacket 21, and only the braided barrel 51 is crimped. . Next, as shown in FIG. 6, the coaxial cable 2 in a state where only the braided barrel 51 of the crimping part 5 is crimped and the jacket barrel 52 is not crimped is disposed on the crimping part 35 of the JASO plug. The center pin 31 is joined. The braided barrel 51 and the jacket barrel 52 of the crimping part 5 are aligned so that they are housed inside the crimping part 35 and the shield case 33 of the JASO plug 3, and crimped from above the crimping part 35 of the JASO plug 3. Then, the outer barrel 52 and the JASO plug 3 are simultaneously pressed. As shown in FIG. 7, the jacket barrel 52 is crimped to the coaxial cable 2, and the crimp portion 35 of the JASO plug 3 is crimped to the jacket barrel 52, so that the JASO plug 3 and the coaxial cable 2 are connected.

  When the JASO plug 3 and the coaxial cable 2 are connected, the braided barrel 51 is crimped to the multiple metal braid 22 of the coaxial cable 2 and the jacket barrel 52 is crimped onto the jacket 21 as shown in FIG. Alternatively, the crimping component 5 may be crimped to one end of the coaxial cable 2 in advance, and this may be placed on the crimping portion 35 of the JASO plug and crimped.

  In this way, in the present invention, the braided barrel 51 is directly joined on the multiple metal braid 22 without folding the multiple metal braid 22 or twisting the multiple metal braid 22. Since the coaxial cable 2 has the multiple metal braid 22, even if the braid barrel 51 is directly crimped without folding the multiple metal braid 22 onto the jacket, the braid is laminated in a plurality of layers so that a sufficient fixing force can be obtained. As a result, there is no risk of loosening and falling off after crimping, and highly reliable joining is possible.

  Further, as shown in FIGS. 7A and 7B, the jacket barrel 52 of the crimping component 5 is held by being crimped to the crimping portion 35 of the JASO plug 3. When the coaxial cable 2 is pulled from the opposite side of the JASO plug 3, the jacket barrel 52 comes into contact with the protrusions 39, 39 provided on the crimping portion of the JASO plug 3, so that the crimping component 5 is crimped to the JASO plug 3. It is possible to prevent the portion 35 from easily coming off.

  FIG. 8 is an exploded perspective view showing an example of a connector terminal used in the present invention. The connector terminal shown in FIG. 8 includes an inner terminal 41 connected to the core wire, a shield shell 42 that accommodates the inner terminal 41, and a dielectric 43 interposed between the inner terminal 41 and the shield shell 42. It is composed of When the inner terminal 41 is inserted into the dielectric 43, the inner terminal 41 bites into the upper wall in the accommodation opening 43 a, and a pair of biting projections 41 a for fixing the inner terminal 41 and a pair of crimping pieces for crimping the core wire 23. A portion 41b is provided.

  The dielectric 43 is made of an insulating material such as a resin, and is accommodated in a housing hole 43a for accommodating and fixing the inner terminal 41 therein, and in a shell of a mating connector terminal connected to the connector terminal 4 in the upper portion. The locking recess 43b is provided.

  The shield shell 42 is formed by bending a conductive plate, and a pair of a rectangular tube-shaped shell main body 42a and a front edge of a portion of the main body 42a that is opened by opening the ceiling surface and bent outward. A stabilizer 42b is provided, and a crimping portion 42c comprising a pair of crimping pieces for crimping the coaxial cable is provided behind the stabilizer 42b.

  As shown in FIG. 8, the coaxial cable 2 and the connector terminal 4 are connected by first crimping the core member 25 to the crimping portion 41 b of the inner terminal 41 and connecting the core wire 23 to the inner terminal 41. Next, the connector terminal 4 and the coaxial cable 2 are joined by crimping the crimped portion 42c of the connector terminal 42 from the top of the multiple metal braid 22 exposed by peeling off the outer sheath 21 of the coaxial cable 2. At this time, in the coaxial cable 2, the crimp portion 42 c is directly crimped onto the exposed multiple metal braid without folding the multiple metal braid 22.

  The connection between the connector terminal 4 and the coaxial cable 2 has an effect that the bonding force between the coaxial cable and the connector terminal can be increased because the crimp piece of the connector terminal is crimped onto the multiple metal braid 22. Further, since the braid is not folded back, the core wire is covered with the multiple braid, and the shielding performance is improved. Note that the connector terminal is not limited to the above-described embodiment, and it is only necessary to have a crimping portion that can be directly crimped from above the multiple braid (shield layer), and other configurations are connectors used for a standard coaxial connector for mounting on an automobile. Terminal structure is available.

  The coaxial cable 2 described in Japanese Patent Application Laid-Open No. 2004-214137 can be used. FIG. 9 is a cross-sectional view showing an example of a coaxial cable used in the present invention. As shown in FIG. 9, the coaxial cable 2 is composed of a core wire 23 composed of a core material 25 as an internal conductor for transmitting a signal, an insulating layer 24 sheathed on the core material 25, and the core material via the insulating layer 24. 25 is constituted by a shield layer 22 sheathed on 25 and an outer cover 21. The shield layer 22 is composed of two outer conductor layers 22a and 22b and a magnetic type outer conductor layer 22c that covers the core member 25 of the inner conductor from the outside of the outer conductor layers 22a and 22b. have.

  The core material 25 is made of a conductive metal such as copper or a copper alloy. In this embodiment, a plurality of metal strands made of tinned annealed copper wire are twisted together. The insulating layer 24 is formed by extrusion molding such as cross-linked PE.

  The outer conductor layers 22a and 22b are configured by a metal braid obtained by braiding a plurality of metal strands formed of a conductive metal material into a mesh shape. As the metal wire, a copper wire, an annealed copper wire, or a plated wire obtained by plating them with tin or zinc is used. In this embodiment, a tinned annealed copper wire is used.

  The magnetic-type outer conductor layer 22c has a network of metal wires formed of a magnetic metal material (ferromagnetic metal material) having a larger magnetic permeability than the conductive metal material used for the outer conductor layers 22a and 22b. It is composed of a braided metal braid. The metal braid used for the magnetic outer conductor layer 22c is the same as the metal braid constituting the outer conductor layers 22a and 22c except for the material and various setting conditions. In this embodiment, a soft iron wire is used as the material of the metal wire of the magnetic outer conductor layer 22c.

  The jacket 21 of the coaxial cable 2 is formed by extrusion molding of a resin such as PVC.

  In the coaxial cable 2 shown in FIG. 9, the outer conductor layers 22a and 22b may be one layer or three or more layers. The magnetic outer conductor layer 22c may be two or more layers.

  FIG. 10 is a cross-sectional view showing another example of the coaxial cable used in the present invention. The coaxial cable 2 of this embodiment is substantially different from the coaxial cable of the embodiment shown in FIG. 9 only in the configuration of the shield layer, and the other configurations are the same. The coaxial cable of the aspect shown in FIG. 10 is provided with two sets of shield layers 27 and 28. The first shield layer 27 includes an outer conductor layer 27a and a magnetic type outer conductor layer 27b located outside the outer conductor layer. The second shield layer 28 includes the outer conductor layer 28a and the outer conductor layer. And a magnetic type outer conductor layer 28b located outside of the substrate. The first shield layer 27 and the second shield layer 28 are arranged on the insulating layer 24 of the core wire 23 on the outer conductor layer 27a, the outer conductor layer 28a, the magnetic type outer conductor layer 27b, and the magnetic type outer conductor layer 28b. The outer conductor layers 27a and 28a and the magnetic type outer conductor layers 27b and 28b are alternately arranged to form a composite shield layer. The composite shield layer may be composed of three or more shield layers. In each shield layer of the composite shield layer, one or both of the outer conductor layer and the magnetic outer conductor layer may be formed in two or more layers.

  In the coaxial cable 2 shown in FIG. 10, the outer conductor layers 27a and 28a are configured by a metal braid made of a tinned annealed copper wire, like the outer conductor layers 22a and 22b of the coaxial cable shown in FIG.

  In the coaxial cable of the above aspect, the outer conductor layers 22a, 22b, 27a, and 28a are made of two metal strands (for example, tin-plated annealed copper wire) formed of a conductive metal material instead of a metal braid. You may comprise by winding twice by the spiral winding direction of the reverse direction around the center axis | shaft of a cable. One metal element wire constitutes the inner winding layer, and the other metal element wire constitutes the outer winding layer, and these are overlapped so as to cross each other and are spirally wound. ing. In this case, the surface density on the winding surface of the metal strand is set to a level equivalent to that in the case of the metal braid. Further, one of the metal wires may be wound in a single spiral shape.

  Further, in the coaxial cable of the above aspect, the magnetic outer conductor layers 22c, 27b, and 28b are arranged in a spiral winding direction in which a metal element wire (for example, soft iron wire) formed of a magnetic metal material is reversed around the central axis of the coaxial cable. It may be configured by winding twice. Moreover, you may comprise by winding a metal strand in a single spiral.

  In the coaxial cable of the above aspect, the outer conductor layers 22a, 22b, 27a, and 28a are made of a conductive metal material (for example, a copper film) and a resin film (for example, a PET film) instead of a metal braid. You may comprise by the strip | belt-shaped composite metal tape of the predetermined width formed by sticking together. The composite metal tape is packaged so as to enclose the components located inside thereof.

  In the coaxial cable of the above aspect, the magnetic outer conductor layers 22c, 27b, and 28b may be formed of a strip-shaped metal tape (for example, iron tape) having a predetermined width formed of a magnetic metal material instead of the metal braid. . The metal tape is packaged so as to enclose the components located inside thereof.

  When the shielded wire harness of the present invention is used for an automobile antenna cord, a JASO plug is connected to an antenna socket provided in a radio or car audio device, and the other connector terminal is connected to a vehicle radio antenna. It is used by connecting to the connector terminal of the wire. Although the shield wire harness of the present invention can be used as various signal transmission harnesses, it can be optimally used for an antenna cord of an automobile.

It is a perspective view which shows the external appearance of the shield wire harness of this invention. It is a perspective view which shows the state before the connection of the JASO plug side and crimping | compression-bonding component of a coaxial cable. The crimping | compression-bonding components of FIG. 2 are shown, (a) is a top view, (b) is a side view, (c) is a front view. It is a top view which shows the state which connected the coaxial cable to the crimping | compression-bonding components. (A) is sectional drawing of the side surface of a JASO plug, (b) is a rear view of a JASO plug. It is a partial cross section figure of the side surface which shows the process of connecting the coaxial cable which attached the crimping | compression-bonding component to the JSASO plug. (A) is a bottom view which shows the state which connected the coaxial cable to the JASO plug, (b) is the rear view which abbreviate | omitted description. It is a disassembled perspective view which shows an example of the connector terminal used in this invention. It is sectional drawing which shows an example of the coaxial cable used in this invention. It is sectional drawing which shows the other example of the coaxial cable used in this invention. (A) is a fragmentary sectional view of a JASO plug side surface, and (b) is a plan view showing a JASO plug and a coaxial cable. It is sectional drawing of the coaxial cable used for the conventional shield wire harness. (A) is a side view which shows the state before joining of the coaxial cable and coaxial connector of the conventional shield wire harness, (b) is a figure which shows after joining of (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shield wire harness 2 Coaxial cable 3 JASO plug 4 Connector terminal 5 Crimp component 21 Outer jacket 22 Multiple metal braiding (shield layer)
22a, 22b outer conductor layer 22c magnetic outer conductor layer 23 core wire 24 insulating layer 25 core member 35 crimping part 51 braided barrel 52 jacket barrel

Claims (2)

  One end of the coaxial cable is connected to a crimping part of an automobile radio equipment connection plug, in which a center pin for insertion into a socket of the radio equipment and a crimping part for fixing the coaxial cable are provided. In the shielded wire harness in which the connector terminal is connected to the other end, the coaxial cable includes an inner conductor and an insulating layer sheathed on the inner conductor, a shield layer sheathed on the inner conductor via the insulating layer, And a shield layer having a multilayer structure comprising an outer conductor layer and a magnetic outer conductor layer formed of a magnetic metal material having a magnetic permeability greater than that of the metal material used for the outer conductor layer. In addition, the connection between the plug for the radio equipment of the automobile and the coaxial cable is connected to the radio of the automobile from above the shield layer exposed by peeling off the outer jacket of the coaxial cable. A shielded wire harness characterized in that a crimping part, which is a separate member from the device connection plug, is crimped, and a crimping part of an automobile radio equipment connection plug is crimped from above the crimping part to which a coaxial cable is connected .   2. The shielded wire harness according to claim 1, wherein the connection between the connector terminal and the coaxial cable is such that a crimping portion of the coaxial connector is crimped from above the shield layer exposed by peeling off the outer sheath of the coaxial cable.

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