wire harness signal female terminal

Abstract

The utility model discloses a kind of harness signal female terminals, it includes rectangular main body part, elastic contact piece and wire fixing part. Rectangular main body part is used for male terminal plug-in, the rectangular main body part includes the accommodating space of accommodating male terminal plug-in part and the convex part of male terminal clamping, the accommodating space is formed by the top wall, bottom wall, first side wall and second side wall of the rectangular main body part;The convex part is set to the end of the rectangular main body part and is convex from the top wall of the rectangular main body part upwards;Elastic contact piece is integrally formed with the rectangular main body part and is formed by bending from the first side wall, and the elastic contact piece extends into the accommodating space, for the abutment of the plug-in part of male terminal;Wire fixing part is connected with one end of rectangular main body part. The elastic contact piece of the harness signal female terminal only needs to be obtained by twice bending, and cumulative tolerance is smaller, and size accuracy is higher.

Description

Technical Field

[0001] This utility model belongs to the field of wire harness technology, specifically relating to a wire harness signal female terminal. Background Technology

[0002] As a core component of electrical connection systems, the structural precision and reliability of wire harness female terminals directly affect the stability of electrical contact performance. Traditional wire harness female terminals employ a multi-stage bending and forming process, such as... Figure 5 As shown, the female terminal is formed into a cavity containing the elastic contact piece 2a through multiple consecutive stamping and bending processes. The formation of the elastic contact piece 2a requires first bending to form four sidewalls, then bending to form the protrusion 16a, and finally bending again to form the elastic contact piece 2a. This multiple bending process leads to accumulated tolerances in the vertical distance between the elastic contact piece 2a and the bottom, making it difficult to insert the male terminal. Secondly, existing female terminals, after bending, typically use fixed structures on the top and sides to connect to the closed sidewalls of the cavity, such as a protrusion on the top and an opening on the side. The protrusion is used for interference fit with the opening. This connection method is unstable; the top and sides are prone to detachment and deformation, affecting the connection effect of the wire harness.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a wire harness signal female terminal with higher dimensional accuracy and more stable structure.

[0005] To achieve the above objectives, a specific embodiment of this utility model provides the following technical solution: a wire harness signal female terminal, comprising a rectangular main body, an elastic contact piece, and a wire fixing part. The rectangular main body is used for inserting a male terminal, and includes an accommodating space for accommodating the male terminal insertion part and a protrusion for engaging with the male terminal. The accommodating space is formed by the top wall, bottom wall, first side wall, and second side wall of the rectangular main body. The protrusion is disposed at the end of the rectangular main body and protrudes upward from the top wall of the rectangular main body. The elastic contact piece is integrally formed with the rectangular main body and is formed by bending from the first side wall. The elastic contact piece extends into the accommodating space for contacting the insertion part of the male terminal. The wire fixing part is connected to one end of the rectangular main body.

[0006] In one or more embodiments of this utility model, the elastic contact piece includes a connecting piece and a contact piece. The connecting piece extends from the first sidewall along the width direction of the rectangular main body into the accommodating space; the contact piece extends from the connecting piece along the length direction of the rectangular main body into the accommodating space for contacting the insertion portion of the male terminal.

[0007] In one or more embodiments of the present invention, the contact piece includes a first contact segment extending obliquely downward from the connecting piece and a second contact segment extending obliquely upward from the first contact segment, wherein the first contact segment and the second contact segment are arranged in a "V" shape.

[0008] In one or more embodiments of this utility model, the connecting piece, the bottom wall, the first side wall, and the second side wall together form a socket for the insertion of the male terminal.

[0009] In one or more embodiments of this utility model, the edge of the socket is chamfered to guide the insertion of the male terminal.

[0010] In one or more embodiments of this utility model, a plurality of protruding contact portions are spaced apart on the bottom wall and the protruding contact portions are located below the elastic contact piece. The protruding contact portions and the elastic contact piece are used to abut against the insertion portion of the male terminal.

[0011] In one or more embodiments of this utility model, the wire fixing part includes a bottom, two first fixing pieces, and two second fixing pieces. The bottom is connected to the bottom wall of the rectangular main body; the two first fixing pieces are symmetrically arranged on both sides of the bottom and extend obliquely upward from the bottom, and the two first fixing pieces can be bent towards the bottom to press against the conductive part of the wire; the two second fixing pieces are respectively arranged on both sides of the bottom and spaced apart from the first fixing pieces, the two second fixing pieces extend obliquely upward from the bottom and can be bent towards the bottom to press against the insulating part of the wire.

[0012] In one or more embodiments of this utility model, the projection portions of the two second fixing pieces along the width direction of the rectangular main body overlap.

[0013] In one or more embodiments of this utility model, the rectangular main body, the elastic contact piece, and the wire fixing part are formed by bending a metal sheet. The two ends of the metal sheet are bent to form the upper and lower parts of the first sidewall, and the upper and lower parts are connected to form the first sidewall.

[0014] In one or more embodiments of this utility model, the upper part is provided with a downwardly extending snap-fit ​​piece and the width of the snap-fit ​​piece gradually increases from top to bottom, and the lower part is provided with a snap-fit ​​groove with the same shape as the snap-fit ​​piece. The snap-fit ​​piece can be snapped into the snap-fit ​​groove to connect the two ends of the metal sheet to form a closed rectangular main body.

[0015] Compared with existing technologies, the elastic contact piece of the signal female terminal of this utility model extends from the first sidewall into the accommodating space and can be obtained by only two bends to form a socket with the bottom wall. Compared with the multiple bends of the prior art, the cumulative tolerance at the socket is smaller, thus the dimensional accuracy of the signal female terminal of the wire harness is higher. In addition, the upper and lower parts of the first sidewall are connected by snap-fit ​​pieces in the snap-fit ​​groove, making the connection more stable and the rectangular main body less likely to detach or deform. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the signal female terminal of the wire harness in one embodiment of the present invention;

[0018] Figure 2 This is a front view of the signal female terminal of the wire harness in one embodiment of the present invention;

[0019] Figure 3 This is a side view of the signal female terminal of the wire harness in one embodiment of the present invention;

[0020] Figure 4 for Figure 3 A sectional view along the AA axis;

[0021] Figure 5 This is a perspective view of the female terminal in the prior art.

[0022] Explanation of key figure labels:

[0023] 1-Rectangular main body, 11-Accommodation space, 111-Socket, 112-Chamfer, 12-Top wall, 13-Bottom wall, 131-Protruding contact part, 14-First side wall, 14a-Upper part, 14b-Lower part, 141-Snap-fit ​​piece, 142-Snap-fit ​​groove, 15-Second side wall, 16-Protrusion, 16a-Protrusion, 2-Elastic contact piece, 2a-Elastic contact piece, 21-Connecting piece, 22-Contact piece, 221-First contact segment, 222-Second contact segment, 3-Wire fixing part, 31-Bottom, 32-First fixing piece, 33-Second fixing piece, 4-Fixing plate. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0025] like Figure 1-4 As shown, in one embodiment of this utility model, the signal female terminal of the wire harness includes a rectangular main body 1, an elastic contact piece 2, and a wire fixing part 3. The rectangular main body 1 includes an accommodating space 11 and a protrusion 16. The accommodating space 11 is formed by the top wall 12, bottom wall 13, first side wall 14, and second side wall 15 of the rectangular main body 1, and is used to mate with and accommodate the insertion part of the male terminal. The protrusion 16 is provided at the end of the rectangular main body 1 and protrudes upward from the top wall 12 of the rectangular main body 1, and is used to position the male terminal and engage with it. The elastic contact piece 2 is integrally formed with the rectangular main body 1 and is formed by bending from the first side wall 14. The elastic contact piece 2 extends into the accommodating space 11 and is used to contact the insertion part of the male terminal, such as a metal ferrule. The wire fixing part 3 is connected to one end of the rectangular main body 1.

[0026] In the above embodiment, the elastic contact piece 2 of the wire harness signal female terminal extends from the first sidewall 14 into the accommodating space 11. Since the elastic contact piece 2 and the rectangular main body 1 are integral metal sheets, it is only necessary to first bend the metal sheet to form the bottom wall 13 of the rectangular main body 1, and then bend it to form part of the first sidewall 14 and the elastic contact piece 2. The construction of the elastic contact piece 2 can be achieved through two bends. Compared with the prior art, the wire harness signal female terminal has fewer bends, which can better control the distance between the elastic contact piece 2 and the bottom wall 13, and the cumulative tolerance is smaller, thereby the dimensional accuracy of the wire harness signal female terminal is higher.

[0027] In one implementation, such as Figure 4As shown, the elastic contact piece 2 includes a connecting piece 21 and a contact piece 22. The connecting piece 21 extends from the first sidewall 14 along the width direction of the rectangular main body 1 (i.e., Figure 1 The accommodating space 11 extends from the connecting piece 21 (in the X-axis direction). Preferably, the connecting piece 21 is arranged approximately horizontally with the bottom wall 13 of the rectangular main body 1. The contact piece 22 extends from the connecting piece 21 along the length direction of the rectangular main body 1 (i.e., along the X-axis direction). Figure 2 The contact piece 22 extends into the accommodating space 11 in the Y-axis direction to contact the insertion part of the male terminal. The contact piece 22 has a certain elasticity, so that when the insertion part of the male terminal is inserted into the accommodating space 11, the contact piece 22 uses its own elastic force to press the insertion part of the male terminal onto the bottom wall 13 of the rectangular main body 1.

[0028] Specifically, the contact piece 22 includes a first contact segment 221 extending obliquely downward from the connecting piece 21 and a second contact segment 22 extending obliquely upward from the first contact segment 221. The first contact segment 221 and the second contact segment 22 are arranged in a roughly "V" shape. With this arrangement, the connection between the first contact segment 221 and the second contact segment 22 can be closer to the bottom wall 13 of the rectangular main body 1 to more stably press the plug portion of the male terminal.

[0029] To cooperate with the elastic contact piece 2, a plurality of raised contact portions 131 are provided at intervals on the bottom wall 13, and the raised contact portions 131 are located below the elastic contact piece 2. The raised contact portions 131 and the elastic contact piece 2 cooperate to hold the insertion portion of the male terminal to ensure a stable connection between the insertion portion of the male terminal and the elastic contact piece 2 during use. Preferably, two raised contact portions 131 are provided at intervals along the bottom wall 13.

[0030] like Figure 3 As shown, the connecting piece 21, bottom wall 13, first side wall 14, and second side wall 15 together form a socket 111 for the insertion of the male terminal's connector. Since the connecting piece 21 extends from the first side wall 14, it undergoes fewer bends during processing, making the dimensions of the socket 111 easier to control and resulting in higher dimensional accuracy, thus better fitting the male terminal's connector. Furthermore, to facilitate the insertion of the male terminal's connector, the socket 111 has a chamfer 112 at its edge; that is, a chamfer 112 is provided at the edges of the connecting piece 21, bottom wall 13, first side wall 14, and second side wall 15 to guide the insertion of the male terminal's connector.

[0031] In one implementation, such as Figure 1As shown, the wire fixing part 3 includes a bottom 31 and two first fixing pieces 32. The bottom 31 is connected to the bottom wall 13 of the rectangular main body 1. The two first fixing pieces 32 are symmetrically arranged on both sides of the bottom 31 and extend obliquely upward from the bottom 31. The two first fixing pieces 32 can be bent towards the bottom 31 to press against the conductive part of the wire. Two second fixing pieces 33 are respectively arranged on both sides of the bottom 31 and spaced apart from the first fixing pieces 32. The two second fixing pieces 33 extend obliquely upward from the bottom 31 and can be bent towards the bottom 31 to press against the insulating part of the wire. The first fixing pieces 32 and the second fixing pieces 33 cooperate to fix the wire.

[0032] Preferably, the projection portions of the two second fixing pieces 33 along the width direction of the rectangular main body 1 overlap. With this arrangement, after the two second fixing pieces 33 are bent, their adjacent edges can approach or fit together, thereby achieving a better fixing effect.

[0033] Furthermore, a fixing plate 4 is provided at the end of the bottom 31. The fixing plate 4 has screw holes for fixing the signal female terminal of the wire harness with screws.

[0034] In one embodiment, the rectangular main body 1, the elastic contact piece 2, and the wire fixing part 3 are formed by bending a single metal sheet. The top wall 12, bottom wall 13, first side wall 14, second side wall 15, and elastic contact piece 2 of the rectangular main body 1 are all formed by bending the same metal sheet. Specifically, the two ends of the metal sheet of the rectangular main body 1 are bent to form the upper part 14a and the lower part 14b of the first side wall 14. The upper part 14a and the lower part 14b are connected to form the first side wall 14. This arrangement changes the connection point in the prior art from the edges of the top and side walls to the connection and fixation point on the first side wall 14, thereby making the connection of the rectangular main body 1 more stable.

[0035] Specifically, the upper part 14a is provided with a downwardly extending snap-fit ​​piece 141, the width of which gradually increases from top to bottom. The lower part 14b has a snap-fit ​​groove 142 with the same shape as the snap-fit ​​piece 141, and the snap-fit ​​piece 141 can be snapped into the snap-fit ​​groove 142 to connect the two ends of the metal sheet to form a closed rectangular main body 1. Preferably, after the snap-fit ​​piece 141 is snapped into the snap-fit ​​groove 142, the upper part 14a and the lower part 14b form a flush first sidewall 14. By using the snap-fit ​​piece 141 to be snapped into the snap-fit ​​groove 142, and the width of the snap-fit ​​piece 141 gradually increasing from top to bottom, the first sidewall 14 is not easy to detach and deform, and thus the entire rectangular main body 1 is not easy to deform.

[0036] In summary, the elastic contact piece 2 of the signal female terminal of the wire harness extends from the first sidewall 14 into the accommodating space 11. The elastic contact piece 2 can be obtained by only two bends and forms a socket 111 with the bottom wall 13, etc. Compared with the multiple bends in the prior art, the cumulative tolerance at the socket 111 is smaller, thus the dimensional accuracy of the signal female terminal of the wire harness is higher. In addition, the upper part 14a and the lower part 14b of the first sidewall 14 are connected by a snap-fit ​​piece 141 in the snap-fit ​​groove 142, which makes the connection more stable and the rectangular main body 1 less likely to detach and deform.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A signal female terminal for a wire harness, characterized in that, include: A rectangular main body for inserting a male terminal, the rectangular main body including a receiving space for accommodating the male terminal insertion part and a protrusion for engaging with the male terminal, the receiving space being formed by the top wall, bottom wall, first side wall and second side wall of the rectangular main body; the protrusion is disposed at the end of the rectangular main body and protrudes upward from the top wall of the rectangular main body; An elastic contact piece is integrally formed with the rectangular main body and bent from the first sidewall. The elastic contact piece extends into the accommodating space for contacting the insertion portion of the male terminal. and The wire fixing part is connected to one end of the rectangular main body.

2. The wire harness signal female terminal according to claim 1, characterized in that, The elastic contact piece includes: A connecting piece extends from the first sidewall along the width direction of the rectangular main body portion into the accommodating space; A contact piece extends from the connecting piece along the length of the rectangular main body into the accommodating space for contacting the insertion portion of the male terminal.

3. The wire harness signal female terminal according to claim 2, characterized in that, The contact piece includes a first contact segment extending obliquely downward from the connecting piece and a second contact segment extending obliquely upward from the first contact segment, the first contact segment and the second contact segment being arranged in a "V" shape.

4. The wire harness signal female terminal according to claim 2, characterized in that, The connecting piece, the bottom wall, the first side wall, and the second side wall together form a socket for the insertion of the male terminal.

5. The wire harness signal female terminal according to claim 4, characterized in that, The edge of the socket is chamfered to guide the insertion of the male terminal.

6. The wire harness signal female terminal according to claim 1, characterized in that, The bottom wall is provided with a plurality of raised contact portions at intervals, and the raised contact portions are located below the elastic contact piece. The raised contact portions and the elastic contact piece are used to abut against the plug portion of the male terminal.

7. The wire harness signal female terminal according to claim 1, characterized in that, The wire fixing part includes: The bottom is connected to the bottom wall of the rectangular main body; Two first fixing plates are symmetrically arranged on both sides of the bottom and extend obliquely upward from the bottom. The two first fixing plates can be bent towards the bottom to press against the conductive portion of the wire; and Two second fixing plates are respectively disposed on both sides of the bottom and spaced apart from the first fixing plate. The two second fixing plates extend obliquely upward from the bottom and can be bent towards the bottom to press against the insulating part of the wire.

8. The wire harness signal female terminal according to claim 7, characterized in that, The projection portions of the two second fixing plates along the width direction of the rectangular main body overlap.

9. The wire harness signal female terminal according to claim 1, characterized in that, The rectangular main body, the elastic contact piece, and the wire fixing part are formed by bending a metal sheet. The two ends of the metal sheet are bent to form the upper and lower parts of the first sidewall, and the upper and lower parts are connected to form the first sidewall.

10. The wire harness signal female terminal according to claim 9, characterized in that, The upper part is provided with a downwardly extending snap-fit ​​piece, and the width of the snap-fit ​​piece gradually increases from top to bottom. The lower part is provided with a snap-fit ​​groove with the same shape as the snap-fit ​​piece. The snap-fit ​​piece can be snapped into the snap-fit ​​groove to connect the two ends of the metal sheet to form a closed rectangular main body.

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