A connection structure of a contact terminal and a contact terminal

Abstract

The utility model discloses a kind of connecting structure and contact terminal of contact terminal, including contact terminal, contact terminal includes flange part and the main body and riveting portion respectively installed in the both sides of flange part, main body has the through hole of axial penetration, the outer wall surface of the end of main body also has buckle part, flange part is located the end of main body away from buckle part, riveting portion is connected with flange part, and is away from main body, riveting portion also has the riveting inner hole of axial penetration along it;Busbar, busbar has the mounting hole that riveting portion can be provided with riveting connection;Connecting portion, connecting portion includes the clamping portion that can be clamped to the outer wall surface of main body and the hook portion that is installed to the inner side wall of clamping portion and is buckled with buckle part Buckling connection, so that connecting portion and contact terminal are stably connected.The utility model is connected with busbar by the mode of riveting, significantly improve the installation efficiency of contact terminal, and set buckle part in the end of main body, avoid the problem that traditional structure is easy to loosen.

Description

Technical Field

[0001] This utility model relates to the field of contact terminal technology, specifically to a connection structure for a contact terminal and a contact terminal. Background Technology

[0002] Contact terminals, as core components of electrical connectors, are widely used in automobiles, power equipment, and various electronic products to achieve stable transmission of electrical energy or signals. In existing technologies, contact terminals are typically made of conductive metal materials and are fixed to busbars, connector housings, or circuit boards through methods such as press-fitting, welding, or riveting.

[0003] However, existing contact terminals still have some shortcomings. The main methods for fixing existing contact terminals include welding and bolting. Welded terminals connect to the busbar or wire by heating and melting, offering advantages such as good conductivity and low initial contact resistance. However, during long-term use, they are susceptible to problems such as thermal expansion and contraction, oxidation, and solder joint cracking, leading to connection failure. Furthermore, the welding process requires a high level of skill and a suitable operating environment, making it unsuitable for mass production. Bolted terminals, on the other hand, are fixed through mechanical locking, offering advantages such as convenient installation and detachability. However, they are prone to loosening under long-term vibration or thermal cycling conditions, resulting in poor contact or increased contact resistance. Additionally, bolts are bulky, occupying installation space, and improper tightening torque can affect connection reliability.

[0004] Therefore, this application provides a contact terminal that has a reasonable structure, is easy to process, is reliable to assemble, and can improve conductivity stability, thereby overcoming the above-mentioned defects. Utility Model Content

[0005] To overcome the above shortcomings, the purpose of this utility model is to provide a connection structure for contact terminals and contact terminals that are connected to busbars by riveting, which significantly improves the installation efficiency of contact terminals. Furthermore, a snap-fit ​​part is provided at the end of the main body, which cooperates with the snap-fit ​​part of the connecting part to achieve snap-fit ​​fixation between the contact terminal and the connecting part, thus avoiding the problem of easy loosening in traditional structures.

[0006] Technical solution: This utility model discloses a connection structure for contact terminals, including:

[0007] The contact terminal includes a flange portion and a main body and a riveting portion respectively installed on both sides of the flange portion. The main body has an axially through hole, and the outer wall surface of the end of the main body also has a snap-fit ​​portion. The flange portion is located at the end of the main body opposite to the snap-fit ​​portion. The riveting portion is connected to the flange portion and is opposite to the main body. The riveting portion also has a riveting inner hole that extends axially through it.

[0008] A busbar, wherein the busbar has mounting holes for the press-fitting part to be press-fitted;

[0009] The connecting part includes a clamping part that can be clamped to the outer wall surface of the main body and a hook part that is installed on the inner side wall of the clamping part and is snapped into the snap-fit ​​part, thereby making the connecting part stably connected to the contact terminal.

[0010] Furthermore, the connecting portion also includes a positioning portion that extends axially and can extend into the through hole, and the hook portion includes a fixing portion sleeved outside the positioning portion and a claw hook extending from the fixing portion toward the body.

[0011] This utility model also discloses a contact terminal, comprising:

[0012] The main body has an axially penetrating through hole, and the outer wall surface of the end of the main body also has a snap-fit ​​part;

[0013] A flange portion, the flange portion being located at the end of the body opposite to the snap-fit ​​portion;

[0014] The riveting part is connected to the flange part and is opposite to the main body. The riveting part also has a riveting inner hole that extends through it along its axial direction.

[0015] Furthermore, the latching part is a groove that is wrapped around the outer wall surface of the end of the main body.

[0016] Furthermore, the through hole is connected to and coaxially arranged with the riveting inner hole.

[0017] Furthermore, the outer wall surface of the riveting part has a knurled portion composed of vertical lines.

[0018] Furthermore, the end of the riveting portion that is away from the flange portion extends axially to form a guide portion.

[0019] Furthermore, the wall surface of the press-fit inner hole extends from the end of the press-fit part near the flange part to the end away from the flange part and slopes from the inside to the outside.

[0020] Furthermore, the end face of the flange portion facing the riveting portion has a groove surrounding the riveting portion.

[0021] Furthermore, the radial width of the flange is greater than the radial width of the body, thereby enabling the formation of a limiting support during assembly.

[0022] The beneficial effects of this utility model are as follows:

[0023] (1) This utility model connects to the busbar by riveting, which significantly improves the installation efficiency of the contact terminal. In addition, a snap-fit ​​part is provided at the end of the main body, which cooperates with the snap-fit ​​part of the connecting part to realize the snap-fit ​​fixation of the contact terminal and the connecting part, avoiding the problem of easy loosening in the traditional structure. At the same time, the connecting part also includes a positioning part that can extend into the through hole of the main body, so that the connecting part can be quickly aligned and accurately positioned during the assembly process, which greatly improves the reliability of the overall assembly.

[0024] (2) In this utility model, one end of the press-fit part extends to form a guide part, which can be quickly aligned and smoothly inserted into the mounting hole of the busbar during assembly, thereby reducing assembly difficulty and error; the radial width of the flange part is greater than that of the main body, thereby forming a limiting support on the surface of the busbar to prevent the terminal from being pressed in excessively and to increase the conductive area. Attached Figure Description

[0025] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, under the guidance of this invention, can select various possible shapes and proportions to implement this invention according to specific circumstances. In the drawings:

[0026] Figure 1 This is a schematic diagram of the connection structure of the contact terminal described in this utility model;

[0027] Figure 2 This is a schematic diagram showing the connection between the contact terminal and the busbar described in this utility model;

[0028] Figure 3 This is a schematic diagram of the contact terminal described in this utility model;

[0029] Figure 4 This is a half-sectional view of the contact terminal described in this utility model;

[0030] Figure 5 This is a half-sectional view of the contact terminal described in this utility model.

[0031] In the figure: 1. Contact terminal; 11. Main body; 111. Through hole; 112. Snap-fit ​​part; 12. Riveting part; 121. Riveting inner hole; 122. Knurled part; 13. Flange part; 131. Groove; 14. Guide part; 2. Busbar; 21. Mounting hole; 3. Connecting part; 31. Clamping part; 32. Hook part; 321. Fixing part; 322. Claw hook; 33. Positioning part. Detailed Implementation

[0032] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0033] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The implementation methods of this utility model will now be described based on its overall structure.

[0034] like Figures 1 to 5 As shown, this utility model discloses a connection structure for a contact terminal 1, comprising:

[0035] The contact terminal 1 includes a flange portion 13 and a main body 11 and a riveting portion 12 respectively installed on both sides of the flange portion 13. The main body 11 has an axially penetrating through hole 111, and the outer wall surface of the end of the main body 11 also has a snap-fit ​​portion 112. The flange portion 13 is located at the end of the main body 11 opposite to the snap-fit ​​portion 112. The riveting portion 12 is connected to the flange portion 13 and is opposite to the main body 11. The riveting portion 12 also has a riveting inner hole 121 penetrating along its axial direction.

[0036] Busbar 2, wherein the busbar 2 has mounting holes 21 for the riveting part 12 to be riveted together;

[0037] The connecting part 3 includes a clamping part 31 that can be clamped to the outer wall of the main body 11 and a hook part 32 that is installed on the inner side wall of the clamping part 31 and is snapped to the snap-fit ​​part 112, thereby making the connecting part 3 stably connected to the contact terminal 1.

[0038] With the above structure, the contact terminal 1 includes a body 11, a flange 13, and a riveting part 12. The body 11 has a through hole 111 that runs through the axis, and a snap-fit ​​part 112 is provided on the outer wall surface of its end. The flange 13 is located at one end of the body 11 away from the snap-fit ​​part 112 and is connected to the body 11 and the riveting part 12. The riveting part 12 is connected to the flange 13 and is away from the body 11. The riveting part 12 has an axially penetrating riveting inner hole 121 inside. The riveting part 12 is used to cooperate with the mounting hole 21 of the busbar 2 and fix the contact terminal 1 on the busbar 2 by riveting.

[0039] Specifically, after the contact terminal 1 is riveted to the mounting hole 21 of the busbar 2 by the riveting part 12, the through hole 111 of the main body 11 allows the connector to pass through. At the same time, the connecting part 3 is fixed to the outer wall of the main body 11 of the contact terminal 1 by the cooperation of the clamping part 31 and the hook part 32, so that the hook part 32 and the buckle part 112 are interlocked. The clamping part 31 always maintains close contact with the outer wall surface of the main body 11, thereby enhancing the stability between the contact terminal 1 and the connecting part 3.

[0040] This invention uses the riveting connection between the press-fit part 12 and the busbar 2 to avoid the loosening defects of traditional bolt connections, thereby improving the reliability of installation. Furthermore, the snap-fit ​​cooperation between the snap-fit ​​part 112 and the snap-fit ​​hook part 32 forms a stable connection structure between the connecting part 3 and the contact terminal 1. The snap-fit ​​structure enhances the vibration resistance and avoids the problem of loosening during long-term use.

[0041] In this embodiment, in addition to the clamping part 31 and the hook part 32, the connecting part 3 further includes a positioning part 33 that extends axially and can penetrate into the through hole 111 of the main body 11. The positioning part 33 cooperates with the through hole 111 of the main body 11 to achieve bidirectional limiting inside and outside. Specifically, the hook part 32 includes a fixing part 321 sleeved on the outside of the positioning part 33 and a claw hook 322 extending from the fixing part 321 toward the main body 11. The fixing part 321 is sleeved on the outer wall of the positioning part 33, and the claw hook 322 is engaged with the latching part 112 at the end of the main body 11, so that the connecting part 3 can be securely fastened to the contact terminal 1.

[0042] By providing a positioning part 33 in the connecting part 3, which extends into the through hole 111 of the main body 11, it not only serves as a guide and limiter, preventing the connecting part 3 from shifting during installation, but also further enhances the stability of the fit between the connecting part 3 and the contact terminal 1. The fixing part 321 of the hook part 32 is fitted with the positioning part 33 to ensure that the connecting part 3 will not loosen or fall off when subjected to force, while the claw hook 322 and the latching part 112 of the main body 11 are interlocked to maintain a firm connection under external vibration or long-term use conditions.

[0043] like Figures 3 to 5 As shown, this utility model also discloses a contact terminal 1, comprising:

[0044] The main body 11 has an axially through hole 111, and the outer wall surface of the end of the main body 11 also has a snap-fit ​​part 112;

[0045] Flange 13, the flange 13 being located at one end of the body 11 opposite to the snap-fit ​​portion 112;

[0046] The riveting part 12 is connected to the flange part 13 and is opposite to the main body 11. The riveting part 12 also has a riveting inner hole 121 that extends through it along its axial direction.

[0047] With the above structure, the contact terminal 1 includes a body 11, a flange 13, and a crimping part 12. The body 11 has a through hole 111 extending axially to achieve electrical or mechanical connection. The outer wall of the end of the body 11 also has a snap-fit ​​part 112, which can cooperate with corresponding connectors to achieve limiting and locking. The flange 13 is located at the end of the body 11 opposite to the snap-fit ​​part 112 and is used for isolation, load bearing, and limiting, creating a separation structure between the body 11 and the crimping part 12. The crimping part 12 is connected to the flange 13 and is opposite to the body 11. It has an axially extending crimping inner hole 121 inside. The crimping part 12 fixes the contact terminal 1 by crimping, thereby ensuring reliable electrical connection and mechanical installation.

[0048] The radial width of the flange portion 13 is greater than the radial width of the body 11. Therefore, the flange portion 13 is annular and protrudes outward in the overall structure, and has a larger radial dimension than the body 11, so that it can provide support and limit during the assembly of the contact terminal 1 with the bus 2 or other components.

[0049] Specifically, the contact terminal 1 can form a reliable riveting connection with components such as the busbar 2 through the crimping part 12, avoiding the problem of easy loosening of traditional bolt connections, thereby improving the stability and convenience of the installation process.

[0050] The snap-fit ​​part 112 provides a snap-fit ​​area for subsequent engagement with the connecting parts. The flange part 13 serves as a transition structure, effectively distributing the force during the riveting process and preventing the main body 11 from being directly subjected to force, thus avoiding deformation or damage. It also increases the conductive area of ​​the contact terminal 1. The contact terminal 1 described in this invention is easier to install and has good vibration resistance and durability, making it widely applicable to the connection of the busbar 2.

[0051] Preferably, the latching part 112 is a groove that surrounds the outer wall of the end of the main body 11. The groove is continuously formed along the circumference of the main body 11, thereby providing a structure for the connecting part 3 to be latched. By providing the latching part 112, the problem of loosening or displacement of the connecting part 3 due to uneven local force is avoided.

[0052] Furthermore, the through hole 111 communicates with and is coaxially arranged with the crimping inner hole 121, thereby forming a continuous axial passage inside the contact terminal 1. This ensures that the conductor, fastener, or crimping tool is compatible during assembly and use, avoiding assembly difficulties or poor electrical contact caused by hole position deviations.

[0053] Furthermore, the wall surface of the press-fit inner hole 121 extends from the end of the press-fit portion 12 near the flange portion 13 to the end away from the flange portion 13, and slopes from the inside to the outside. That is, the diameter of the press-fit inner hole 121 gradually increases from the end near the flange portion 13 to the end away from the flange portion 13, thereby forming a tapered or flared structure. Therefore, the press-fit inner hole 121 can provide guidance for the riveting tool during the press-fitting process, and ultimately enable the contact terminal 1 and the busbar 2 to form a tighter press-fitting fit.

[0054] In this embodiment, the outer wall surface of the riveting part 12 has a knurled part 122 composed of vertical lines. The knurled part 122 extends along the axial direction of the riveting part 12 and is evenly distributed on its outer wall surface, thereby forming a structure with regular vertical raised and concave lines. This enhances the friction and engagement effect between the riveting part 12 and the inner wall of the manifold 2 during the riveting process.

[0055] Furthermore, such as Figure 5 As shown, the end of the press-fit part 12 away from the flange part 13 extends axially to form a guide part 14. The guide part 14 is a structure that extends outward at the end of the press-fit part 12 for guiding. Its diameter and shape are adapted to the mounting hole 21 of the busbar 2, so that it can first enter the mounting hole 21 during the assembly process and play a guiding role.

[0056] Preferably, the flange portion 13 has a groove 131 surrounding the riveting portion 12 on its end face facing the riveting portion 12. The groove 131 is continuously distributed around the flange portion 13 in a ring around the periphery of the riveting portion 12. By providing the groove 131 surrounding the riveting portion 12 on the end face of the flange portion 13, stress can be effectively dispersed during the riveting process, preventing the riveting portion 12 from directly concentrating the force to the flange portion 13, thereby reducing the risk of cracking or deformation of the flange portion 13. In addition, the groove 131 can also accommodate overflow, allowing the metal during riveting to flow into the groove 131, avoiding excessive compression.

[0057] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A connection structure for a contact terminal, characterized in that, include: The contact terminal includes a flange portion and a main body and a riveting portion respectively installed on both sides of the flange portion. The main body has an axially through hole, and the outer wall surface of the end of the main body also has a snap-fit ​​portion. The flange portion is located at the end of the main body opposite to the snap-fit ​​portion. The riveting portion is connected to the flange portion and is opposite to the main body. The riveting portion also has a riveting inner hole that extends axially through it. A busbar, wherein the busbar has mounting holes for the press-fitting part to be press-fitted; The connecting part includes a clamping part that can be clamped to the outer wall surface of the main body and a hook part that is installed on the inner side wall of the clamping part and is snapped into the snap-fit ​​part, thereby making the connecting part stably connected to the contact terminal.

2. The connection structure of the contact terminal according to claim 1, characterized in that, The connecting portion further includes a positioning portion that extends axially and can extend into the through hole, and the hook portion includes a fixing portion sleeved outside the positioning portion and a claw hook extending from the fixing portion toward the body.

3. A contact terminal, characterized in that, include: The main body has an axially penetrating through hole, and the outer wall surface of the end of the main body also has a snap-fit ​​part; A flange portion, the flange portion being located at the end of the body opposite to the snap-fit ​​portion; The riveting part is connected to the flange part and is opposite to the main body. The riveting part also has a riveting inner hole that extends through it along its axial direction.

4. The contact terminal according to claim 3, characterized in that, The latching part is a groove that is wrapped around the outer wall surface of the end of the main body.

5. The contact terminal according to claim 3, characterized in that, The through hole is connected to the riveting inner hole and is coaxially arranged.

6. The contact terminal according to claim 3, characterized in that, The outer wall surface of the riveting part has a knurled section composed of vertical lines.

7. The contact terminal according to claim 3, characterized in that, The end of the riveting part that is away from the flange part extends axially and forms a guide part.

8. The contact terminal according to claim 3, characterized in that, The wall of the riveting inner hole extends from the end of the riveting part near the flange to the end away from the flange and slopes from the inside to the outside.

9. The contact terminal according to claim 3, characterized in that, The end face of the flange facing the riveting part has a groove surrounding the riveting part.

10. The contact terminal according to claim 3, characterized in that, The radial width of the flange is greater than the radial width of the body, thereby enabling the formation of a limiting support during assembly.

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