Chip contact pin structure

Abstract

The utility model relates to the technical field of connector pins, in particular to a sheet type contact pin structure, which solves the problems of high terminal processing difficulty and low processing efficiency in the prior art, and comprises a contact part and a sheath part, the contact part comprises a plugging part, a clamping part and a wiring harness connecting part, the clamping part is matched with the sheath part in a clamping manner, and the wiring harness connecting part is matched with the plugging part in a clamping manner. The clamping part is of a C-shaped bending structure, the inserting part and the wire harness connecting part are of a single-piece structure, the inserting part is connected with the front side of the lower portion of the C-shaped bending structure, and the wire harness connecting part is connected with the rear side of the lower portion of the C-shaped bending structure. The beneficial effects of the utility model are that the contact part adopts the combination of the C-shaped bending structure and the single-piece structure, so that the contact part is simple in structure, the processing and manufacturing of the contact part can be realized by simple stamping and bending when the contact part is processed, the processing difficulty is low, the processing quality of the contact part is improved, and the production cost is reduced. And the processing efficiency of the contact part is improved.

Description

Technical Field

[0001] This utility model relates to the field of connector pin technology, and in particular to a plate-type pin structure. Background Technology

[0002] With the rapid development of new energy vehicles, customers are placing increasingly higher demands on the functionality, safety, comfort, and entertainment features of automobiles, which in turn places higher requirements on the surface mount contacts on the wiring harness. Terminal current carrying capacity requirements are becoming increasingly stringent, while also demanding high reliability and stability. However, the current carrying capacity of existing surface mount contacts on the market is generally low, making it difficult to meet the needs of connector terminals for higher current carrying capacity and stable mating performance.

[0003] Existing technology, patent CN204632994U, discloses a two-piece terminal, including a terminal body and a metal outer casing. The terminal body is fitted inside the metal outer casing, and the terminal body includes connected contact pieces and a cable crimping area. The metal outer casing includes a fixing frame with clips for connecting to a plastic outer shell. The terminal body has a box-like structure in the middle and a bent groove structure at the rear. During terminal manufacturing, the terminal body is difficult to process, and the contact pieces are prone to bending during processing, reducing their flatness and affecting the production quality of the terminal body. Utility Model Content

[0004] This invention proposes a plate-type contact pin structure, which solves the problems of high difficulty and low efficiency in terminal processing in the prior art.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A sheet-type contact pin structure includes a contact component and a sheath component. The contact component includes a plug-in portion, a snap-fit ​​portion, and a wire harness connection portion. The snap-fit ​​portion engages with the sheath component and has a C-shaped bend structure. Both the plug-in portion and the wire harness connection portion are single-piece structures. The plug-in portion connects to the front side of the lower part of the C-shaped bend structure, and the wire harness connection portion connects to the rear side of the lower part of the C-shaped bend structure. The use of single-piece structures for the plug-in portion and the wire harness connection portion, along with the C-shaped bend structure for the snap-fit ​​portion, simplifies the structure of the contact component. The contact component can be manufactured using simple stamping and bending, reducing manufacturing difficulty, improving manufacturing quality, and increasing processing efficiency.

[0007] The C-shaped bend structure has a rear stop step on the open side, and an inner spring piece is provided on the side wall of the sheath component. The rear stop step and the inner spring piece engage with each other. The engagement of the rear stop step and the inner spring piece can limit the relative position of the contact component and the sheath component, preventing the engaging part from moving backward within the sheath. This facilitates positioning during the assembly of the contact component and the sheath component, ensuring accurate installation of the contact component within the sheath component.

[0008] The right side wall of the sheath component is provided with a first rear stop plate, which engages with the upper rear end face of the C-shaped bending structure. After the contact component is positioned by the inner spring tab, the upper part of the engaging part is repositioned by the first rear stop plate, thereby improving the installation stability of the engaging part within the sheath component.

[0009] A second rear stop plate is provided on the left side wall of the sheath component, and the second rear stop plate engages with the middle rear end face of the C-shaped bending structure. After the contact component is positioned by the inner spring piece, the middle part of the engaging part is repositioned by the second rear stop plate, which further improves the installation stability of the engaging part inside the sheath.

[0010] The connection point between the snap-fit ​​part and the wire harness connection part is provided with a front stop step, which mates with the rear end face of the sheath component. The mate between the front stop step and the rear end face of the sheath component limits the forward direction of the snap-fit ​​part, preventing the contact component from being installed too far inside the sheath component.

[0011] The upper part of the snap-fit ​​portion fits against the top wall of the sheath component, and the lower part of the snap-fit ​​portion fits against the bottom wall of the sheath component. The top and bottom walls of the sheath component limit the vertical movement of the snap-fit ​​portion, ensuring stable installation of the snap-fit ​​portion within the sheath component.

[0012] The front end of the sheath component has a tapered structure that mates with the front side of the snap-fit ​​part. The tapered structure positions the front end of the snap-fit ​​part, ensuring stable installation of the snap-fit ​​part within the sheath component, thereby ensuring the stability of the insertion part.

[0013] The constriction structure includes multiple front stop plates. Front stop plates are provided on the side walls, top walls, and bottom walls of the sheath component, and the front stop plates are arranged inclined toward the inside of the sheath component.

[0014] The insertion part is integrally connected to the C-shaped bending structure via a bending step; the front stop plate on the bottom wall of the sheath component cooperates with the bending step. The bending step enables the insertion part to be located in the middle of the C-shaped bending structure, so that after the contact part is connected to the sheath component, the insertion part is located in the middle position of the sheath component, which facilitates the mating connection between the pin structure and the socket structure.

[0015] The sheath component is equipped with external spring clips. External spring clips are provided on both the top and bottom walls of the sheath component. When the pin structure is connected to the outer shell, the external spring clips position the pin structure, ensuring the stability of the connection between the pin structure and the outer shell.

[0016] The beneficial effects of this utility model are: the contact component adopts a combination of C-shaped bending structure and single-piece structure, which makes the contact component structure simple. The contact component can be manufactured by simple stamping and bending, which reduces the processing difficulty, improves the processing quality of the contact component, and facilitates the improvement of the processing efficiency of the contact component.

[0017] The front and rear stop steps on the snap-fit ​​part limit the contact part in the front-to-back direction within the sheath part; the upper and lower parts of the C-shaped bending structure cooperate with the inner wall of the sheath part to limit the snap-fit ​​part in the vertical direction within the sheath part. Through the snap-fit ​​cooperation between the snap-fit ​​part and the sheath part, the contact part is fixed on the sheath part, ensuring that the relative position of the contact part and the sheath part is accurate and the connection between the contact part and the sheath part is stable. Attached Figure Description

[0018] 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 of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a plate-type contact pin structure according to the present invention;

[0020] Figure 2 Schematic diagram of contact component structure Figure 1 ;

[0021] Figure 3 Schematic diagram of contact component structure Figure 2 ;

[0022] Figure 4 Schematic diagram of the sheath component structure Figure 1 ;

[0023] Figure 5 Schematic diagram of the sheath component structure Figure 2 .

[0024] In the diagram: 1. Contact component, 2. Sheath component, 11. Insertion part, 12. Snap-fit ​​part, 13. Wire harness connection part, 121. Rear stop step, 122. Middle rear end face, 123. Bending step, 124. Upper rear end face, 125. Front stop step, 21. Outer spring, 22. First rear stop plate, 23. Inner spring, 24. Front stop plate, 25. Second rear stop plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1, as Figures 1-5 As shown, a sheet-type contact pin structure includes a contact component 1 and a sheath component 2. The contact component 2 includes a plug-in portion 11, a snap-fit ​​portion 12, and a wire harness connection portion 13. The snap-fit ​​portion 12 engages with the sheath component 2 and has a C-shaped bending structure. Both the plug-in portion 11 and the wire harness connection portion 13 are single-piece structures. The plug-in portion 11 is connected to the front side of the lower part of the C-shaped bending structure, and the wire harness connection portion 13 is connected to the rear side of the lower part of the C-shaped bending structure. Specifically, the wire harness connecting part 13 is connected to the wire harness by welding. The contact part 1 adopts a combination of C-shaped bending structure and single-piece structure, which makes the contact part 1 structurally simple. The contact part 1 can be manufactured by simple stamping and bending, which is easy to manufacture and helps to improve the processing quality and efficiency of the contact part. In addition, the snap-fit ​​part 12 and the sheath part 2 are engaged to connect the contact part 1 and the sheath part 2, ensuring that the relative position of the contact part 1 and the sheath part 2 is accurate and the connection is stable.

[0027] Furthermore, such as Figure 2 , Figure 4 As shown, the C-shaped bending structure has a rear stop step 121 on the open side, and the sheath component 2 has an inner spring piece 23 on its side wall. The rear stop step 121 and the inner spring piece 23 are engaged. In this embodiment, the upper and lower parts of the C-shaped bending structure are both provided with rear stop steps 121, and the sheath component 2 has two inner spring pieces 23. The two inner spring pieces 23 are engaged with the rear stop steps 121 on the upper and lower parts of the C-shaped bending structure, respectively, so as to limit the backward movement of the engaging part 12 in the sheath component 2. When assembling the pin structure, the inner spring piece 23 limits the contact part 1 once.

[0028] Furthermore, such as Figure 2, Figure 5 As shown, a first rear stop plate 22 is provided on the right side wall of the sheath component 2, and the first rear stop plate 22 is engaged with the upper rear end face 124 of the C-shaped bending structure. A second rear stop plate 25 is provided on the left side wall of the sheath component 2, and the second rear stop plate 25 is engaged with the middle rear end face 122 of the C-shaped bending structure. After the contact component 1 is limited once by the inner spring piece 23, the first rear stop plate 22 is used to limit the upper part of the engaging part 12 a second time by the bending process, and the second rear stop plate 25 is used to limit the middle part of the engaging part 12 a second time, thereby realizing the limiting and fixing of the contact component 1 in the backward direction; at the same time, the first rear stop plate 22 and the second rear stop plate 25 work together to ensure that the rear end of the engaging part 12 is subjected to uniform and stable force when the contact component 1 is pulled out, and to avoid the situation of uneven force deformation of the engaging part 12.

[0029] Example 2, based on Example 1, provides a sheet-type contact pin structure, such as... Figure 3 , Figure 5 As shown, a front stop step 125 is provided at the connection position between the snap-fit ​​part 12 and the wire harness connection part 13. The front stop step 125 mates with the rear end face of the sheath component 2. Specifically, after the contact component 1 is inserted into the sheath component 2, the front stop step 125 mates with the side wall of the sheath component 2. At this time, the sheath component 2 limits the forward direction of the contact component 1, preventing the contact component from being over-installed within the sheath component.

[0030] Furthermore, the upper part of the snap-fit ​​portion 12 is fitted against the top wall of the sheath component 2, and the lower part of the snap-fit ​​portion 12 is fitted against the bottom wall of the sheath component 2. The C-shaped bending structure has elasticity after manufacturing, that is, the upper and lower parts of the C-shaped bending structure have an opening elastic force; after the contact component 1 is connected to the sheath component 2, the snap-fit ​​portion 12 enters the sheath component 2. Under the action of the elastic force of the C-shaped bending structure, the upper and lower parts of the C-shaped bending structure open and press against the top and bottom walls of the sheath component 2, thereby limiting the snap-fit ​​portion 12 in the vertical direction of the sheath component 2, ensuring the stable installation of the snap-fit ​​portion 12 in the sheath component 2.

[0031] Furthermore, such as Figure 4 As shown, the front end of the sheath component 2 is provided with a narrowing structure, which mates with the front side of the snap-fit ​​part 12. The narrowing structure limits the front end of the snap-fit ​​part 12, ensuring that the snap-fit ​​part 12 is stably installed inside the sheath component 2, thereby ensuring the stability of the insertion part 13.

[0032] Furthermore, the constriction structure includes multiple front stop plates 24. Front stop plates 24 are provided on the side walls, top walls, and bottom walls of the sheath component 2, and are arranged inclined towards the inner side of the sheath component 2. In this embodiment, four front stop plates 24 are provided at the front end of the sheath component 2, and the four front stop plates 24 are respectively provided on the top wall, bottom wall, and two side walls of the sheath component 2.

[0033] Furthermore, the insertion part 11 is integrally connected to the C-shaped bending structure via a bending step 123; the front stop plate 24 on the bottom wall of the sheath component 2 cooperates with the bending step 123. The bending step 123 enables the insertion part 11 to be located in the middle of the C-shaped bending structure, so that after the contact component 1 is connected to the sheath component 2, the insertion part 11 is located in the middle position of the sheath component 2, which facilitates the mating connection between the pin structure and the socket structure.

[0034] Furthermore, such as Figure 5 As shown, the sheath component 2 is provided with an outer spring piece 21. Both the top and bottom walls of the sheath component 2 are provided with outer spring pieces 21. When the pin structure is connected to the outer shell, the outer spring piece 21 positions the pin structure to ensure the connection stability between the pin structure and the outer shell.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A chip contact pin structure comprising a contact part (1) and a sheath part (2), characterized in that, The contact component (1) comprises a plug-in part (11), a clamping part (12) and a wire harness connecting part (13), the clamping part (12) is clamped and matched with the sheath component (2), the clamping part (12) is a C-shaped bending structure, the plug-in part (11) and the wire harness connecting part (13) are both single-piece structures, the plug-in part (11) is connected with the front side of the lower part of the C-shaped bending structure, and the wire harness connecting part (13) is connected with the rear side of the lower part of the C-shaped bending structure.

2. The chip contact pin structure of claim 1, wherein, The opening side of the C-shaped bending structure is provided with a rear stop step (121), the side wall of the sheath component (2) is provided with an inner spring (23), and the rear stop step (121) is clamped and matched with the inner spring (23).

3. The chip contact pin structure of claim 2, wherein, The right side wall of the sheath component (2) is provided with a first rear stop plate (22), and the first rear stop plate (22) is clamped and matched with the upper rear end face (124) of the C-shaped bending structure.

4. The chip contact pin structure of claim 2, wherein, The left side wall of the sheath component (2) is provided with a second rear stop plate (25), and the second rear stop plate (25) is clamped and matched with the middle rear end face (122) of the C-shaped bending structure.

5. The chip contact pin structure according to any one of claims 1 to 4, characterized in that, The connecting position of the clamping part (12) and the wire harness connecting part (13) is provided with a front stop step (125), and the front stop step (125) is matched with the rear end face of the sheath component (2).

6. The chip contact pin structure of claim 5, wherein, The upper part of the clamping part (12) is attached to the top wall of the sheath component (2), and the lower part of the clamping part (12) is attached to the bottom wall of the sheath component (2).

7. The chip contact pin structure according to claim 1 or 6, characterized in that, The front end of the sheath component (2) is provided with a necking structure, and the necking structure is matched with the front side of the clamping part (12).

8. The chip contact pin structure of claim 7, wherein, The necking structure comprises a plurality of front stop plates (24), and the front stop plates (24) are inclinedly arranged towards the inner side of the sheath component (2).

9. The chip contact pin structure of claim 8, wherein, The plug-in part (11) is integrally connected with the C-shaped bending structure through a bending step (123); the front stop plate (24) on the bottom wall of the sheath component (2) is matched with the bending step (123).

10. The chip contact pin structure according to any one of claims 1-4, 6, 8, 9, wherein, The sheath component (2) is provided with an outer spring (21).

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