Connector

The connector design with a guide member and slide mechanism addresses the protection of exposed conductor rear parts, enhancing electrical reliability and assembly efficiency while preventing shorts and leaks.

JP2024176636AInactive Publication Date: 2024-12-19AUTONETWORKS TECH LTD +2
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Patent Information

Application Number
JP2023095353
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-06-09
Publication Date
2024-12-19
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing connectors fail to adequately protect the rear parts of exposed conductors, leading to potential interference from foreign objects and increased risk of electrical shorts and leaks, even when wire covers are used.

Method used

A connector design that includes a guide member with a guide hole to accommodate the rear part of the exposed conductor, guiding the front part into a storage chamber while protecting the rear part, and a slide member that slides into a connection position without requiring a dedicated jig.

Benefits of technology

Enhances electrical reliability by preventing contact with foreign matter and simplifying assembly, reducing manufacturing costs, and improving work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a connector that can ensure electrical reliability.SOLUTION: A connector 10 comprises: electric wires 22 each having an exposed conductor 23 exposed frontward from a coating 24; terminal fittings 40 connected to front parts of the exposed conductors 23; a housing 60 having storage chambers (first storage chamber 64 and second storage chamber 71) storing the terminal fittings 40; and a guide member 90 held on the housing 60. A rear part of each of the exposed conductors 23 is arranged behind the housing 60. The guide member 90 has, behind the housing 60, guide holes 92D storing the rear parts of the exposed conductors 23 and guiding the front parts of the exposed conductors 23 to the storage chambers.SELECTED DRAWING: Figure 3
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Description

[Technical field]

[0001] The present disclosure relates to connectors. [Background technology]

[0002] Patent Document 1 discloses a terminal fitting including a connection member called a terminal body and a slide member attached to the connection member. The terminal fitting is accommodated in a housing. An exposed conductor (core wire) exposed from the coating at the front end of an electric wire is inserted into the connection member. The slide member is slidable relative to the connection member between a spaced position where the exposed conductor is separated from a contact portion (contact surface) of the connection member and a connection position where the exposed conductor is in contact with the contact portion.

[0003] To explain an example of the operation of connecting the terminal fitting and the electric wire, the terminal fitting is first accommodated in the housing, and a jig is placed on the rear surface of the housing. In this state, the exposed conductor of the electric wire is inserted from the slide member into the connection member while being guided by a guide portion formed on the jig. Next, the jig is removed, and the slide member is pushed from the separated position to the connection position. This makes the exposed conductor of the electric wire available for contact with the contact portion of the connection member.

[0004] Patent Document 2 discloses a structure including a plurality of electric wires having bent portions, an electric wire cover that holds the bent portions, and a cylindrical member that is attached to the electric wire cover. Each electric wire is inserted from the electric wire cover to the cylindrical member. Patent Document 3 discloses a structure including an electric wire cover, a corrugated tube attached to the electric wire cover, and a plurality of electric wires inserted from the electric wire cover to the corrugated tube. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2019-145208 A [Patent Document 2] JP 2023-14774 A [Patent Document 3] JP 2023-10275 A Summary of the Invention [Problem to be solved by the invention]

[0006] As described above, when the exposed conductor is inserted into the connection member using a jig having a guide portion, the rear part of the exposed conductor remains exposed behind the housing after the jig is removed. This raises the concern that foreign objects may interfere with the rear part of the exposed conductor. In response to this, the rear part of the exposed conductor can be protected by the wire cover by attaching the wire cover disclosed in Patent Documents 2 and 3 to the housing. However, simply attaching the wire cover to the housing does not eliminate the possibility that the rear parts of adjacent exposed conductors may come into contact with each other behind the housing, and there is a problem that it is difficult to prevent electrical defects such as short circuits and leaks.

[0007] In view of the above, an object of the present disclosure is to provide a connector capable of ensuring electrical reliability. [Means for solving the problem]

[0008] The connector of the present disclosure comprises an electric wire having an exposed conductor exposed forward from the covering, a terminal fitting connected to a front portion of the exposed conductor, a housing having a chamber for accommodating the terminal fitting, and a guide member held by the housing, wherein the rear portion of the exposed conductor is positioned at the rear of the housing, and the guide member has a guide hole at the rear of the housing that guides the front portion of the exposed conductor into the chamber and accommodates the rear portion of the exposed conductor. Effect of the Invention

[0009] According to the present disclosure, it is possible to provide a connector capable of ensuring electrical reliability. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is an exploded perspective view of each member, excluding wiring members, in a connector of the first embodiment. FIG. [Diagram 2] FIG. 2 is a perspective view of the connector of the first embodiment. [Diagram 3] FIG. 3 is a perspective view showing a state in a process of manufacturing the connector of the first embodiment. [Figure 4] FIG. 4 is a partial cross-sectional view of the connector of embodiment 1, showing the state in which the slide member is positioned at a distance from the connection member and the exposed conductor of the electric wire is inserted into the terminal fitting via the guide member, with the housing and the guide member cut away. [Diagram 5] 5 is a partial cross-sectional view of the connector of the first embodiment, showing a state in which the sliding member has been pushed into a connection position by a pressing surface of the guide member from the state in FIG. 4, with the housing and the guide member cut away. [Figure 6] FIG. 6 is an enlarged perspective view showing a portion where a hole-punching pin penetrates a sheet portion of a wiring member in the connector of the first embodiment. [Figure 7] FIG. 7 is a plan view of the wiring member in the connector of the first embodiment. [Figure 8] FIG. 8 is a cross-sectional view of a terminal fitting in the connector of the first embodiment. [Figure 9] FIG. 9 is a front view of a guide member in the connector of the first embodiment. [Figure 10] FIG. 10 is a rear view of the guide member in the connector of the first embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] [Description of the embodiments of the present disclosure] First, the embodiments of the present disclosure will be listed and described. The connector of the present disclosure comprises: (1) An electric wire having an exposed conductor exposed forward from the covering, a terminal fitting connected to a front part of the exposed conductor, a housing having a chamber for accommodating the terminal fitting, and a guide member held by the housing, wherein the rear part of the exposed conductor is positioned at the rear of the housing, and the guide member has a guide hole at the rear of the housing for accommodating the rear part of the exposed conductor and guiding the front part of the exposed conductor into the chamber.

[0012] The rear portion of the exposed conductor disposed at the rear of the housing is accommodated in the guide hole of the guide member, and thus can be prevented from coming into contact with foreign objects. As a result, the electrical reliability of the connector can be improved. In addition, the guide hole of the guide member has both the function of guiding the front portion of the exposed conductor into the accommodation chamber and the function of protecting the rear portion of the exposed conductor, and therefore the configuration can be simplified compared to a case in which both functions are provided separately. Note that the rear of the housing means the area behind the rear surface of the housing.

[0013] (2) In the connector described in (1) above, it is preferable that the terminal fitting comprises a connecting member into which the exposed conductor is inserted, and a sliding member which is mounted on the connecting member so as to be slidable between a spaced position in which the exposed conductor does not contact the connecting member and a connecting position in which the exposed conductor contacts the connecting member.

[0014] When the slide member is in the separated position, the front portion of the exposed conductor is inserted into the connecting member through the guide hole and the slide member. The operation of inserting the front portion of the exposed conductor into the connecting member can be performed smoothly. After the front portion of the exposed conductor is inserted into the connecting member, the slide member is slid to the connecting position, whereby the front portion of the exposed conductor comes into contact with the connecting member, and the terminal fitting can be connected to the electric wire.

[0015] (3) In the connector described above in (2), it is preferable that the guide member has a pressing surface that presses the slide member from the separated position to the connected position.

[0016] The above configuration (3) does not require a dedicated jig for pushing the slide member into the connection position, so that it is possible to reduce manufacturing costs and improve the efficiency of assembly work. In addition, since the guide member also has the function of pushing the slide member into the connection position, it is possible to further simplify the configuration.

[0017] (4) In the connector described in any one of (1) to (3) above, it is preferable that the electric wires are fixed in parallel to an insulating sheet portion, the exposed conductors are positioned forward of the sheet portion, and the guide member has an opposing surface facing the sheet portion.

[0018] Since the guide member faces the sheet portion and also has the function of protecting the sheet portion, the configuration can be further simplified. In addition, the configuration of (4) above allows the front portions of the exposed conductors arranged forward of the sheet portion to be inserted collectively into the corresponding connecting members, thereby further improving work efficiency.

[0019] [Details of the embodiment of the present disclosure] Specific examples of the present disclosure will be described below with reference to the drawings. Note that the present invention is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0020] <Embodiment 1> The connector 10 of the first embodiment includes a wiring member 20, a terminal fitting 40 connected to the wiring member 20, a housing 60 that accommodates the terminal fitting 40, and a holding member 80 and a guide member 90 that are held by the housing 60. In the following description, the front side is defined as the side where the connector 10 is mated with a mating connector (not shown). The up-down direction is based on the up-down direction in Figs. 1 and 2. In Figs. 1 and 2, arrows X, Y, and Z represent the front, right, and upward, respectively. These directions do not necessarily coincide with the directional references when the connector 10 is mounted on a vehicle (not shown) or the like.

[0021] (Wiring materials) 7, the wiring member 20 has a sheet portion 21 and a plurality of electric wires 22 fixed to the sheet portion 21. The sheet portion 21 is made of an insulating material, for example, a nonwoven fabric. An example of the electric wires 22 is a covered electric wire in which an outer periphery of a conductor 23, such as a core wire, is covered with an insulating covering 24.

[0022] The multiple electric wires 22 are fixed to one surface of the sheet portion 21 (the lower surface in the case of the first embodiment) in a state lined up in the left-right direction. Each electric wire 22 is fixed to one surface of the sheet portion 21 by, for example, a welding means. As the welding means, a known welding means such as ultrasonic welding, heat and pressure welding, high frequency welding, etc. The wiring member 20 is flexible overall, and has a flat rectangular shape in a plan view with a reduced height dimension.

[0023] A front end of each electric wire 22 is disposed so as to protrude forward from the sheet portion 21. In addition, at the front end of each electric wire 22, the covering 24 is stripped to expose the conductor 23 (hereinafter, the conductor exposed at the front end of each electric wire 22 is referred to as the "exposed conductor 23").

[0024] In the case of the first embodiment, as shown in Fig. 2, the wiring member 20 has a first wiring member 20A arranged in a lower stage and a second wiring member 20B arranged in an upper stage inside the connector 10. The number of each electric wire 22 fixed to the sheet portion 21 differs between the first wiring member 20A and the second wiring member 20B. Specifically, the first wiring member 20A includes a portion in the left-right central portion of the sheet portion 21 where the electric wire 22 is not fixed, and the number of each electric wire 22 is accordingly smaller than that of the second wiring member 20B. However, the number of each electric wire 22 may be the same between the first wiring member 20A and the second wiring member 20B, or, conversely, the number of each electric wire 22 may be greater in the first wiring member 20A than in the second wiring member 20B.

[0025] (Terminal fittings) 8, the terminal fitting 40 includes a connection member 41 and a slide member 42 that is attached to the connection member 41 so as to be slidable between a separated position and a connected position. The connection member 41 and the slide member 42 are separate from each other. Both the connection member 41 and the slide member 42 are formed by bending a conductive metal plate or the like.

[0026] The connection member 41 has a cylindrical, for example, rectangular, connection body 43. The connection body 43 receives a mating terminal fitting (not shown) from the front and is electrically connected to the mating terminal fitting. The connection member 41 also has a contact portion (not shown) extending rearward from the connection body 43.

[0027] The slide member 42 has a cylindrical, for example, square cylindrical box portion 45. The contact portion of the connection member 41 is inserted into the box portion 45. The slide member 42 has a pressing portion (not shown) inside the box portion 45. When the slide member 42 is in the separated position, the exposed conductor 23 of the electric wire 22 of the wiring member 20 is inserted into the connection member 41. The exposed conductor 23 does not contact the connection member 41 and is disposed away from the contact portion. In this state, the slide member 42 can be pushed forward and reach the connection position. When the slide member 42 is in the connection position, the pressing portion presses the contact portion, and the contact portion contacts the exposed conductor 23. As a result, the electric wire 22 of the wiring member 20 is electrically and mechanically connected to the terminal fitting 40.

[0028] (housing) 1, the housing 60 is composed of a first member 61, a second member 62, and a third member 63. The first member 61, the second member 62, and the third member 63 are arranged in this order in a stacked state from the bottom up. The first member 61, the second member 62, and the third member 63 are all made of synthetic resin.

[0029] The first member 61 is configured as a lower housing. The first member 61 has a rectangular shape in a plan view, and is formed long in the left-right direction. The first member 61 has a plurality of first accommodating chambers 64 arranged in a row in the left-right direction on the upper surface side. As shown in Figs. 4 and 5, the first accommodating chambers 64 are accommodating chambers for accommodating the lower terminal fittings 40, and extend in the front-rear direction in the first member 61 and are open to the rear. The first member 61 has a front wall 65 that constitutes the front part of the housing 60. The front wall 65 has a plurality of terminal insertion holes 66 that communicate with the front openings of each of the first accommodating chambers 64 and each of the second accommodating chambers 71 described later. As shown in Fig. 1, the terminal insertion holes 66 are opened in two rows, one above the other, and in a row in the left-right direction. The mating terminal fittings (not shown) are connected to the terminal fittings 40 from the front of the housing 60 through the terminal insertion holes 66.

[0030] The first member 61 has a flat first cover portion 67 that closes the upper surface of the front part of each first housing chamber 64. The connection member 41 of the terminal fitting 40 is accommodated in the front part of the first housing chamber 64, and the first cover portion 67 prevents the connection member 41 from slipping out upward. The first member 61 has a first exposed surface 68 that opens the upper surface of the rear part of each first housing chamber 64. The slide member 42 of the terminal fitting 40 is accommodated in the rear part of the first housing chamber 64, and is exposed upward by the first exposed surface 68. When a protrusion 47 (see FIG. 8) formed on the slide member 42 exposed on the first exposed surface 68 is pressed forward, the slide member 42 can move from the separated position to the connected position. However, in the case of the first embodiment, the protrusion 47 of the slide member 42 is not pressed, and the slide member 42 is moved to the connected position by the guide member 90, as described later. The first member 61 also has a pair of first housing lock portions 69 at both left and right ends.

[0031] The second member 62 is configured as an inner housing. As shown in FIG. 1 and FIG. 3, the second member 62 has a rectangular shape in a plan view that is slightly smaller than the first member 61, and is formed long in the left-right direction. The lower surface of the second member 62 covers the upper surface of the first member 61 and closes the first exposed surface 68. The second member 62 has a plurality of second accommodating chambers 71 arranged in a row in the left-right direction on the upper surface side. Each second accommodating chamber 71 is an accommodating chamber that accommodates each terminal metal fitting 40 in the upper stage, extends in the front-rear direction in the second member 62, and is open to the rear. The second member 62 has a flat second cover portion 72 that closes the upper surface of the front part of each second accommodating chamber 71, and has a second exposed surface 73 that opens the upper surface of the rear part of each second accommodating chamber 71. The functions of the second cover portion 72 and the second exposed surface 73 are similar to those of the first cover portion 67 and the first exposed surface 68 described above.

[0032] 1, the second member 62 has a pair of second housing locking portions 74 (only one is shown in FIG. 1) on both the left and right ends. Each second housing locking portion 74 is engaged with each first housing locking portion 69 from the inside, thereby holding the second member 62 to the first member 61 (see FIG. 3).

[0033] The third member 63 is configured as an upper housing. As shown in Fig. 1 and Fig. 2, the third member 63 has a rectangular shape in a plan view that is slightly larger than the first member 61, and is formed to be long in the left-right direction. The lower surface of the third member 63 covers the upper surface of the second member 62 and closes the second exposed surface 73.

[0034] The third member 63 has an elastically deformable lock arm 76 at the left and right central portion of the upper surface. The lock arm 76 locks the mating connector and holds the connector 10 and the mating connector in a mated state. The third member 63 has a pair of third housing locking portions 77 at both left and right ends. Each third housing locking portion 77 is locked to each first housing locking portion 69 from the outside, so that the third member 63 is held in a stacked state with respect to the first member 61 and the second member 62 (see FIG. 2). The third member 63 has a pair of locking portions 78 at both left and right ends and at a rear end portion behind each third housing locking portion 77. Each locking portion 78 has a rectangular column shape extending in the vertical direction and is disposed behind each of the first member 61 and the second member 62 when the first member 61, the second member 62, and the third member 63 are in a stacked state. The locking portions 78 are locked to the holding member 80 and the guide member 90, so that the third member 63 and therefore the housing 60 are held (coupled) to the holding member 80 and the guide member 90.

[0035] (Guide material) The guide member 90 is configured as a lower cover. The guide member 90 is made of synthetic resin, has a rectangular shape in a plan view, and is formed to be long in the left-right direction. As shown in Fig. 3, the guide member 90 is disposed behind the first member 61 and alongside the first member 61. As shown in Fig. 1, the guide member 90 has a flat plate-shaped receiving portion 91 and a guide main body 92 connected to a front end portion of the receiving portion 91.

[0036] The guide body 92 has a rectangular shape that is long in the left-right direction when viewed from the front, and has a wall portion 92A that stands upward and constitutes the front wall portion of the guide member 90. In addition, the guide body 92 has a plurality of guide tube portions 92B at positions corresponding to each of the first storage chambers 64 and each of the second storage chambers 71.

[0037] As shown in Fig. 1 and Fig. 9, each guide tube portion 92B has a rectangular tube-like external shape and protrudes forward from the wall portion 92A in two upper and lower stages and in a row in the left-right direction. Each guide tube portion 92B is configured with a size that allows it to fit into the corresponding first accommodation chamber 64 or second accommodation chamber 71 (see Fig. 5). The front surface (the tip surface in the protruding direction) of each guide tube portion 92B is configured as a pressing surface 92C that can press the rear end of the slide member 42, as described later. In the case of the first embodiment, the pressing surface 92C is arranged vertically along the up-down direction and the left-right direction.

[0038] The guide body 92 has a plurality of guide holes 92D penetrating in the front-rear direction from the wall portion 92A to the guide tube portion 92B at positions corresponding to the respective guide tube portions 92B. The exposed conductor 23 of the electric wire 22 is inserted into the guide hole 92D from the rear, and the front portion is disposed inside the terminal fitting 40.

[0039] 4, 5 and 10, the guide hole 92D has a circular cross-sectional shape (opening shape), and includes an insertion opening 92E extending forward from the rear surface of the wall 92A with a constant diameter, and a guide portion 92F extending from the front end of the insertion opening 92E toward the front surface of the guide tube 92B inside the guide tube 92B with a gradually decreasing diameter. The diameter of the insertion opening 92E is larger than the diameter of the coating 24 of the electric wire 22. The minimum diameter at the front end of the guide portion 92F is the same as or smaller than the diameter of the coating 24 of the electric wire 22, and slightly larger than the diameter of the exposed conductor 23.

[0040] 1, the guide member 90 has a pair of first receiving portions 93 at the front end of the receiving portion 91 and at both left and right ends sandwiching the guide body 92. Each of the first receiving portions 93 has a rectangular recessed cross section and is open upward. The lower portion of each locking portion 78 is fitted into each of the first receiving portions 93 from above in a positioned state.

[0041] 1, the guide member 90 has a flat opposing surface 94 facing the sheet portion 21 of the wiring member 20, behind the guide body 92 and each of the first receiving portions 93 on the upper surface of the receiving portion 91. The lower surface of the sheet portion 21 of the first wiring member 20A can be supported in surface contact with the opposing surface 94.

[0042] The guide member 90 has a pair of pin receiving portions 95 at both left and right end portions of the receiving portion 91 and behind each of the first receiving portions 93. Each pin receiving portion 95 is a hole with a circular cross section, penetrates the receiving portion 91 in the up-down direction (thickness direction), and opens on the opposing surface 94 and the lower surface of the receiving portion 91. The inner peripheral edge of each pin receiving portion 95 opening on the opposing surface 94 is edged, and is capable of scraping the seat portion 21 between the pin receiving portion 95 and a hole punching pin 83 described later. In addition, the guide member 90 has a pair of first cover locking portions 97 connected to both left and right end portions of the receiving portion 91, as shown in Figs. 9 and 10.

[0043] (Retaining member) The holding member 80 is configured as an upper cover. The holding member 80 is made of synthetic resin, has a rectangular shape in a plan view, and is formed long in the left-right direction. The holding member 80 is arranged side by side with the third member 63 behind the third member 63. The holding member 80 is arranged facing the guide member 90 with the first wiring member 20A and the second wiring member 20B sandwiched between them. As shown in FIG. 1, the holding member 80 has a flat plate-shaped holding body 81. The holding member 80 has a pair of second receiving portions 82 that protrude forward from both the left and right sides of the holding body 81. Each second receiving portion 82 has a rectangular frame shape. The upper portion of each locking portion 78 is fitted into each second receiving portion 82 from below in a positioned state (see FIG. 2).

[0044] The lower surface of the holding body 81 is formed flat. As shown in Fig. 6, the holding member 80 has a pair of hole-punching pins 83 (only one is shown in Fig. 6) protruding from the rear of each second receiving portion 82 on the lower surface of the holding body 81. Each hole-punching pin 83 is cylindrical. The holding member 80 has a pair of second cover locking portions 85 connected to both left and right ends of the holding body 81. Each second cover locking portion 85 is engaged with each first cover locking portion 97, thereby holding the holding member 80 in a connected state to the guide member 90 (see Fig. 2).

[0045] (Connector Function) The following describes an example of a procedure for assembling the connector 10. The connector 10 can be automatically assembled using an automatic machine, for example. Prior to assembly of the connector 10, the slide members 42 of the terminal fittings 40 are held in a spaced position relative to the connection member 41. In this state, the terminal fittings 40 are housed in the first housing chambers 64 of the first member 61. The state in which the slide members 42 of the lower terminal fittings 40 are in the spaced position can be visually confirmed via the first exposed surface 68. Next, the second member 62 is attached to and engaged with the first member 61 so as to cover the first exposed surface 68. Then, the terminal fittings 40 are housed in the second housing chambers 71 of the second member 62. The state in which the slide members 42 of the upper terminal fittings 40 are in the spaced position can be visually confirmed via the second exposed surface 73.

[0046] Next, the guide member 90 is disposed behind the housing 60 (the first member 61 and the second member 62). The pressing surface 92C of each guide tube portion 92B is disposed so as to face and come into contact with the rear end of the slide member 42 of each terminal fitting 40 (see FIG. 4).

[0047] In the above state, the front portion of the exposed conductor 23 of each electric wire 22 is inserted into each terminal fitting 40 from the insertion opening 92E of each guide hole 92D through the leading portion 92F. The front portion of each exposed conductor 23 is inserted into each terminal fitting 40 while being guided by the leading portion 92F of each guide hole 92D. As shown in FIG. 4, the front portion of each exposed conductor 23 is disposed inside each terminal fitting 40, spanning from the slide member 42 to the connection member 41. The rear portion of each exposed conductor 23 is disposed in the leading portion 92F of the insertion opening 92E in each guide hole 92D. As a result, the rear portion of each exposed conductor 23 is accommodated in the rear of the housing 60 with its entire periphery covered by the guide body 92.

[0048] As described above, the electric wires 22 constitute a part of the wiring member 20, and are fixed side by side on one surface of the sheet portion 21. Therefore, the electric wires 22 can be inserted into the terminal fittings 40 all at once by moving the sheet portion 21.

[0049] Next, the guide member 90 is advanced so as to approach the first member 61 and the second member 62. Then, the pressing surfaces 92C of the guide tube portions 92B simultaneously press the rear ends of the slide members 42, and as shown in Figs. 4 and 5, the slide members 42 are slid toward the connection positions relative to the connection members 41. This allows the slide members 42 to reach the connection positions relative to the connection members 41. At the same time that the slide members 42 reach the connection positions, the movement of the guide member 90 is stopped (see Fig. 3). As shown in Fig. 5, the guide tube portions 92B are inserted into the first housing chambers 64 and the second housing chambers 71 in a fitted state. The front portions of the exposed conductors 23 are electrically and mechanically connected to the connection members 41 inside the terminal fittings 40 by contacting them (see Fig. 8). As shown in Fig. 5, the rear portions of the exposed conductors 23 are arranged in the guide holes 92D from the insertion opening portion 92E to the guide portion 92F. Therefore, the rear portions of the exposed conductors 23 remain housed in the guide body 92 at the rear of the housing 60. Since the rear portions of the exposed conductors 23 are individually inserted into the guide holes 92D, it is also possible to prevent the rear portions of the exposed conductors 23 from coming into contact with each other and causing a short circuit.

[0050] Next, the third member 63 is attached to and engaged with the first member 61 from above the second member 62. The second exposed surface 73 is covered by the third member 63. This completes the assembly of the housing 60. The sheet portions 21 of the first wiring member 20A and the second wiring member 20B are disposed at the rear of the housing 60 and supportable on the opposing surface 94 of the first member 61.

[0051] Next, the holding member 80 is attached to the guide member 90 from above and locked thereto (see FIG. 2). In the process of attaching the guide member 90, each hole-making pin 83 presses each sheet portion 21 of the first wiring member 20A and the second wiring member 20B against the opposing surface 94 of the guide member 90. Each sheet portion 21 is sandwiched between each hole-making pin 83 and the inner peripheral edge of each pin receiving portion 95. Then, as the holding member 80 descends, each sheet portion 21 is scraped by the inner peripheral edge of each pin receiving portion 95, and a hole is made, and at the same time, each hole-making pin 83 penetrates each sheet portion 21. As a result, each sheet portion 21 is held by each hole-making pin 83 in a line in the vertical direction. The diameter of the hole formed in the sheet portion 21 is equal to the diameter of the hole-making pin 83 penetrating the hole (see FIG. 6). For convenience, FIG. 6 omits the second wiring member 20B and shows only the state in which the hole-forming pin 83 penetrates the first wiring member 20A.

[0052] As described above, the exposed conductor 23 of the electric wire 22 is pressed against the pressing portion inside the connection member 41 and held against the terminal fitting 40. The holding force with which the terminal fitting 40 holds the exposed conductor 23 tends to be weaker than when the exposed conductor 23 is crimped by the barrel of a general terminal. In this respect, in the case of the first embodiment, for example, even if a tensile force acts backward on the seat portion 21 from the housing 60, the hole-punching pins 83 penetrate and hold the seat portion 21, so that the tensile force can be resisted. For this reason, it is possible to prevent the seat portion 21 from retreating in response to the tensile force, and the position of the seat portion 21 relative to the terminal fitting 40 can be maintained constant. As a result, the state in which each electric wire 22 of the wiring member 20 is connected to each terminal fitting 40 can be maintained.

[0053] As described above, according to the first embodiment, the rear portions of the exposed conductors 23 are disposed at the rear of the housing 60, and the guide body 92 of the guide member 90 has the guide holes 92D that accommodate the rear portions of the exposed conductors 23 at the rear of the housing 60 and guide the exposed conductors 23 to the first accommodating chambers 64 and the second accommodating chambers 71. Therefore, the rear portions of the exposed conductors 23 are protected by the guide body 92 and can be prevented from coming into contact with foreign matter. As a result, the electrical reliability of the connector 10 can be improved. In addition, since the guide holes 92D have both the function of guiding the front portions of the exposed conductors 23 to the first accommodating chambers 64 and the second accommodating chambers 71 and the function of protecting the rear portions of the exposed conductors 23, the configuration can be simplified compared to a case in which both functions are provided separately.

[0054] Furthermore, the terminal fitting 40 has a connecting member 41 and a sliding member 42 that is slidable from a separated position to a connected position relative to the connecting member 41, and when the sliding member 42 is in the separated position, the front portions of the exposed conductors 23 are inserted into the connecting member 41 through the guide holes 92D and the sliding member 42. This allows the front portions of the exposed conductors 23 to be inserted into the connecting member 41 smoothly.

[0055] Furthermore, according to the first embodiment, each pressing surface 92C of the guide member 90 pushes each slide member 42 from the separated position to the connected position, so that each slide member 42 can be brought to the connected position without using a dedicated jig. This improves the work efficiency when assembling the connector 10. Moreover, since the guide member 90 also has the function of pushing each slide member 42 to the connected position, the configuration can be further simplified. Furthermore, since the opposing surface 94 of the guide member 90 faces the sheet portion 21 of the wiring member 20 and also has the function of protecting the sheet portion 21, the configuration can be further simplified.

[0056] [Another embodiment of the present disclosure] The above-described first embodiment disclosed herein should be considered as illustrative in all respects and not restrictive. In the case of the above-mentioned embodiment 1, both the holding member and the guide member are held (connected) separately from the housing at the rear of the housing. In contrast, according to another embodiment, at least one of the holding member and the guide member may be held integrally with the housing at the rear of the housing. In the case of the above-mentioned embodiment 1, the wiring member is composed of the first wiring member and the second wiring member. In contrast, according to other embodiments, the wiring member may be composed of only one of the first wiring member and the second wiring member, or may further include another wiring member in addition to the first wiring member and the second wiring member. Also, the wiring member may not have a sheet portion and may be entirely composed of a coated electric wire. In the case of the above-mentioned embodiment 1, the terminal fitting is configured to be connected to the electric wire by sliding the slide member to the connecting position relative to the connecting member. In contrast, according to another embodiment, the terminal fitting may be a general terminal that is crimped to the electric wire by a barrel. In the case of the above-mentioned embodiment 1, the housing is constituted by a first member, a second member, and a third member that are separate from one another. In contrast, according to other embodiments, the housing may be constituted such that, for example, the first member and the second member among the first member, the second member, and the third member are integrated, or the first member, the second member, and the third member are all integrated. [Explanation of symbols]

[0057] 10…Connector 20...Wiring material 20A…First wiring member 20B: Second wiring member 21…Seat section 22...Electric wire 23...Exposed conductor (conductor) 24…Covering 40...Terminal fitting 41...Connecting member 42...Slide member 43…Connection body 45...Hakobe 47…Protrusion 60…Housing 61...First member 62...Second member 63…Third member 64…First containment room (containment room) 65...Front wall 66...Terminal insertion hole 67…First cover part 68...1st exposed surface 69…First housing lock part 71…Second containment room (containment room) 72…Second cover part 73…Second exposed surface 74…Second housing lock part 76...Lock arm 77…Third housing lock part 78…Latching part 80...Retaining member 81...Holding body 82…Second receptor 83…Punching pin 85…Second cover lock part 90...Guide member 91…Receiving part 92…Guide body 92A…Wall part 92B…Guide tube part 92C…Pressing surface 92D...Guide hole 92E…Insertion port 92F…Invitation Department 93…First Receptor 94…Opposite surface 95…Pin receiving part 97…First cover lock part

Claims

1. an electric wire having an exposed conductor exposed forward from a covering; a terminal metal fitting connected to a front portion of the exposed conductor; a housing having an accommodating chamber for accommodating the terminal metal fitting; a guide member held by the housing, a rear portion of the exposed conductor is disposed rearwardly of the housing; The guide member has a guide hole at the rear of the housing for receiving a rear portion of the exposed conductor and for guiding a front portion of the exposed conductor into the receiving chamber.

2. 2. The connector of claim 1, wherein the terminal fitting comprises a connection member into which the exposed conductor is inserted, and a slide member that is slidably attached to the connection member between a spaced position in which the exposed conductor does not contact the connection member and a connection position in which the exposed conductor contacts the connection member.

3. The connector according to claim 2 , wherein the guide member has a pressing surface that presses the slide member from the separated position to the connected position.

4. The electric wires are fixed in parallel to an insulating sheet portion, the exposed conductor is disposed forward of the sheet portion, The connector according to claim 1 , wherein the guide member has an opposing surface facing the sheet portion.

Citation Information

Patent Citations

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