A combined anti-vibration terminal

Abstract

The utility model provides a kind of combined anti-vibration terminal, including fixed support part, fixed support part is equipped with contact part and wiring part, contact part is equipped with contact frame, contact frame is equipped with the electrically conductive contact piece of body forming with fixed support part, the end of electrically conductive contact piece away from wiring part is equipped with guide interface, and there is elastic component from guide interface to wiring part extension;Split structure allows fixed support part and electrically conductive contact piece to be different material respectively, electrically conductive contact piece can select high conductivity material, and fixed support part uses conventional low-cost material, reduces production cost while guaranteeing conductivity efficiency;The multiple contact point design of elastic component significantly increases the contact area with electrically conductive piece, realizes lower contact resistance and more stable electric connection;The overall protection structure of terminal and buffer mechanism can effectively absorb and attenuate external vibration energy, significantly improve the anti-vibration performance and long-term reliability under dynamic working condition, reduce maintenance requirement.

Description

Technical Field

[0001] This utility model belongs to the field of terminal block technology, specifically relating to a combined anti-vibration terminal. Background Technology

[0002] In the field of electrical connection devices, vibration-resistant terminals are widely used in environments with frequent vibrations. Existing vibration-resistant terminals mostly employ a one-piece structure. While this design simplifies the manufacturing process, it has several limitations. First, the one-piece structure restricts material selection; to meet conductivity requirements, the entire terminal must be made of highly conductive metal, resulting in high costs. Furthermore, the fixed support portion does not fully utilize its conductive function, leading to material waste. Second, due to the simple structure, there are usually fewer conductive contact points, resulting in higher contact resistance. Under high current or high-frequency vibration scenarios, this can easily lead to unstable connections, excessive temperature rise, or even open circuit risks. In addition, the vibration-resistant mechanisms of existing terminals are relatively weak, lacking effective buffering and limiting designs. Elastic elements are prone to fatigue relaxation under long-term vibration, resulting in decreased clamping force and severely affecting connection reliability. Overall, existing vibration-resistant terminals have significant shortcomings in conductivity efficiency, material economy, and stability under dynamic operating conditions, urgently requiring a new terminal structure that can optimize conductivity and improve vibration resistance. Utility Model Content

[0003] (1) Technical problems to be solved This invention provides a combined anti-vibration terminal, which aims to solve the above-mentioned problems.

[0004] (2) Technical solution This utility model provides a combined anti-vibration terminal, including a fixed support member. The fixed support member has a contact part and a wiring part. The contact part has a contact frame. The contact frame has a conductive contact member separately formed from the fixed support member. The end of the conductive contact member away from the wiring part has a guide interface. An elastic component extends from the guide interface to the wiring part.

[0005] Furthermore, the elastic component includes a first spring sheet and a second spring sheet arranged side by side, with a clamping cavity formed between the first spring sheet and the second spring sheet, and the first spring sheet and the second spring sheet bent at their ends away from the guide interface to form a spring sheet clamping opening.

[0006] Furthermore, both the first and second spring sheets are wave-shaped bending structures, and the first and second spring sheets are respectively provided with a first curved segment and a second curved segment that are close to each other and bend together, forming a contact point at the top and bottom of the first and second curved segments.

[0007] Furthermore, the middle portions of the first and second springs are respectively provided with a first clamping groove and a second clamping groove extending along the axial direction, so that the first and second springs respectively form two first clamping arms and two second clamping arms, and the first curved segments of the two first clamping arms and the second curved segments of the two second clamping arms form two contact points at the top and bottom respectively.

[0008] Furthermore, the contact frame includes a base plate and two opposing side plates that are stamped and folded from both sides of the base plate. A support plate opposite to the base plate is provided above the conductive contact. The support plate, the base plate, and the two side plates enclose the elastic component in the circumferential direction.

[0009] Furthermore, one end of the support plate is connected to the guide interface, and the other end has a free end that bends upward and lifts up, forming a buffer gap with the elastic component.

[0010] Furthermore, the support plate is provided with a first abutting block extending downward and a second abutting block extending laterally on both sides, and the two side plates are respectively provided with an abutting groove corresponding to the first abutting block and a snap-fit ​​hole corresponding to the second abutting block.

[0011] Furthermore, the support plate is also provided on one side, the limiting plate is punched and folded from the side plate and is opposite to the bottom plate, and the elastic component abuts and restricts between the limiting plate and the bottom plate.

[0012] Furthermore, the limiting plate is also provided with a locking block extending to the other side plate, and the other side plate is provided with a locking groove that engages with the locking block.

[0013] Furthermore, each of the two sides of the support plate is provided with at least one groove, and the two side plates are provided with convex edges corresponding to the grooves, and the grooves and convex edges are fitted together to form welding points.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The split structure allows for the use of different materials for the fixed support and conductive contacts. The conductive contacts can be made of highly conductive materials to improve electrical performance, while the fixed support uses conventional low-cost materials, significantly reducing production costs while ensuring conductivity. The multi-contact design of the elastic component significantly increases the contact area with the conductive component, achieving lower contact resistance and a more stable electrical connection, effectively preventing contact loosening caused by vibration. The overall protective structure and buffering mechanism of the terminals can effectively absorb and attenuate external vibration energy, significantly improving the seismic performance and long-term reliability under dynamic operating conditions, and reducing maintenance requirements. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is an exploded view of the present invention.

[0017] Figure 3 This is a schematic diagram of the elastic component of this utility model. Figure 1 .

[0018] Figure 4 This is a schematic diagram of the elastic component of this utility model. Figure 2 .

[0019] Figure 5 This is a schematic diagram of the clamping arm of this utility model.

[0020] Figure 6 This is a schematic diagram of the support plate of this utility model. Figure 1 .

[0021] Figure 7 This is a schematic diagram of the support plate of this utility model. Figure 2 .

[0022] Figure 8 This is a schematic diagram of the abutting groove of the first abutting block of this utility model.

[0023] Figure 9 This is a schematic diagram of the second abutment block locking hole of this utility model.

[0024] Figure 10 This is a schematic diagram of the limiting plate of this utility model. Figure 1 .

[0025] Figure 11 is a schematic diagram of the limiting plate of this utility model. Figure 2 .

[0026] Figure 12 This is a schematic diagram of the groove and protruding edge of this utility model.

[0027] Figure 13 This is a schematic diagram of the wiring section of this utility model.

[0028] Reference numerals: 1-Fixed support, 11-Contact part, 12-Connecting part, 121-Wire clamping assembly, 122-Clamping piece, 123-Wire clamping cavity, 124-Anti-slip groove, 2-Contact frame, 21-Base plate, 22-Side plate, 221-Protruding edge, 222-Abutting groove, 223-Snap-in hole, 224-Snap-in slot, 23-Limiting plate, 231-Snap-in block, 3-Conductive contact, 31-Conductor interface, 32-Clamping cavity, 4-Elastic component, 41-First spring piece, 411-First curved segment, 412-First clamping groove, 413-First clamping arm, 42-Second spring piece, 421-Second curved segment, 422-Second clamping groove, 423-Second clamping arm, 43-Spring piece clamping opening, 5-Support plate, 51-First abutting block, 52-Second abutting block, 53-Groove. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] like Figure 1-3 As shown, this utility model provides a combined anti-seismic terminal, including a fixed support 1 arranged along the axis. The fixed support 1 is formed by an integral stamping and folding process, and includes, in sequence along the axial direction: a contact part 11 for connecting external conductive elements; a wiring part 12 for crimping or welding wires; the contact part 11 is provided with a contact frame 2, the contact frame 2 including a base plate 21 and two side plates 22 formed by stamping and folding from both sides of the base plate 21. The two side plates 22 are opposite each other and perpendicular to the base plate 21, together forming the contact frame 2. A conductive contact 3 is assembled inside the contact frame 2. The conductive contact 3 and the fixed support 1 are independently formed components. The conductive contact 3 is fixed inside the contact frame 2 by welding. The conductive contact 3 has a circumferentially enclosed guide interface 31 at the end away from the wiring part 12. An elastic component 4 extends axially from the guide interface 31 towards the wiring part 12. The conductive element is inserted into the elastic component 4 through the guide interface 31. In the prior art, the fixed support 1 and the conductive contact 3 are usually integrally molded and made of the same material. When facing applications with high conductivity requirements, the conventional conductivity performance of such structures is often difficult to meet the requirements. To solve this problem, this application designs the conductive contact 3 and the fixed support 1 as independently molded structures. This split design allows the conductive contact 3 and the fixed support 1 to be made of different materials: the conductive contact 3 is made of a material with better conductivity, while the fixed support 1 can use a conventional material with lower cost. This solution improves the overall conductivity of the terminal while effectively reducing the material cost of the product.

[0031] Specifically, such as Figure 3-5 As shown in the figure, in one embodiment of this utility model, the elastic component 4 includes a first spring sheet 41 and a second spring sheet 42 arranged side by side, forming a clamping cavity 32 between the first spring sheet 41 and the second spring sheet 42. The clamping cavity 32 communicates with the guide interface 31. The first spring sheet 41 and the second spring sheet 42 are bent towards each other at their ends away from the guide interface 31, forming a figure-eight spring sheet clamping opening 43. The minimum width of the spring sheet clamping opening 43 is less than the diameter (or width) of the conductive component to be inserted. As can be seen from the figure, the maximum width of the figure-eight structure of the spring sheet clamping opening 43 is facing the guide interface 3. 1. This structure allows the conductive component to easily spread the ends of the first spring 41 and the second spring 42 as it passes through the spring clip 43, increasing the minimum width of the spring clip 43 and forcing the first spring 41 and the second spring 42 to undergo elastic deformation. This deformation causes the two springs to generate an elastic clamping force pointing towards the conductive component, thus reliably clamping the conductive component in the vertical direction. When the conductive component moves in the opposite direction, the minimum width of the spring clip 43 does not change, requiring a large clamping force to be overcome before it can move in the opposite direction. This effectively prevents the conductive component from falling off in the axial direction.

[0032] Furthermore, such as Figure 4 As shown, in order to increase the conductive contact points and clamping force of the elastic component 4 on the inserted conductive element, both the first elastic piece 41 and the second elastic piece 42 are designed as multi-segment waveform bending structures. The first elastic piece 41 has two waveform bending first curved segments 411, and the second elastic piece 42 has two waveform bending second curved segments 421. Each first curved segment 411 and each second curved segment 421 are vertically aligned and close to each other, and form one contact point at the top and bottom of the wave crest. Thus, the two first curved segments 411 and the two second curved segments 421 form two contact points at the top and bottom. The distance between the upper and lower contact points is designed to be smaller than the diameter of the conductive element to be inserted, so as to ensure that when the conductive element is inserted, the conductive element forces the first curved segments 411 and the second curved segments 421 to undergo elastic deformation through the contact points and generate an elastic clamping force pointing towards the conductive element.

[0033] Furthermore, such as Figure 5As shown, the first spring piece 41 and the second spring piece 42 are respectively provided with a first clamping groove 412 and a second clamping groove 422 extending along the axial direction in the middle part, so that the first spring piece 41 and the second spring piece 42 are divided into two parts to form two first clamping arms 413 and two second clamping arms 423 respectively. The first clamping arms 413 and the second clamping arms 423 can move freely up and down. At the same time, the first curved segment 411 and the second curved segment 421 are also divided into two parts by the first clamping groove 412 and the second clamping groove 422, so that each first curved segment 411 and each second curved segment 421 forms two contact points at the top and bottom, and two first curved segments 411 and two second curved segments 421 form four contact points at the top and bottom. In summary, the first spring piece 41 and the second spring piece 42 together constitute eight contact points at the top and bottom, which significantly increases the contact area with the conductive component and further improves the conductivity and clamping stability.

[0034] Specifically, such as Figure 6-9 As shown, in one embodiment of this utility model, the contact frame 2 includes a base plate 21 and two side plates 22 formed by stamping and folding from both sides of the base plate 21. The two side plates 22 are opposite to each other. When the conductive contact 3 is welded and fixed in the contact frame 2, a support plate 5 extending axially from the conductive interface 31 is provided above the conductive contact 3. The support plate 5 is opposite to the base plate 21, and the support plate 5, the base plate 21, and the two side plates 22 together form a circumferentially closed protective structure, completely enclosing the elastic component 4. This structural design allows the combined anti-vibration terminal to provide support and protection for the elastic component 4 enclosed by the support plate 5 and the contact frame 2 in the face of frequent vibration scenarios, ensuring that the elastic component 4 can continuously apply a stable elastic clamping force to the inserted conductive component and avoid clamping loosening due to vibration.

[0035] Furthermore, such as Figure 7-8 As shown, the support plate 5 is not parallel to the base plate 21, but rather has a free end at the end away from the guide interface 31, which is slightly bent upwards. At this time, a buffer gap is formed between the support plate 5 and the elastic component 4 below. This structural design allows the support plate 4 to elastically swing slightly up and down with the connection point with the guide interface 31 as the fulcrum when subjected to external vibration, thereby effectively absorbing and attenuating vibration energy. The buffer gap provides the necessary space for the elastic swing of the support plate 5, avoiding rigid collision between the support plate 5 and the elastic component 4. In addition, it further improves the vibration resistance performance and long-term reliability of the combined anti-vibration terminal under dynamic working conditions.

[0036] Furthermore, such as Figure 8-9As shown, to prevent the support plate 5 from swinging excessively up and down under severe vibration and colliding with the elastic component 4, this embodiment provides a limiting structure: Specifically, the support plate 5 has a first abutting block 51 extending downward and a second abutting block 52 extending laterally on both sides. Correspondingly, the two side plates 22 are provided with abutting grooves 222 that cooperate with the first abutting block 51 and snap-fit ​​holes 223 that correspond to the second abutting block 52. The vertical width of the snap-fit ​​hole 223 is greater than the vertical thickness of the second abutting block 52, thereby reserving the necessary space for the normal buffering swing of the support plate 5. The limiting principle is as follows: When the swing amplitude of the support plate 5 exceeds the normal range, the first abutting block 51 abuts against the abutting groove 222 and limits the movement. At the same time, the second abutting block 52 will also move to the lower boundary position of its locking hole 223. The two limiting structures work together to constrain the swing amplitude of the support plate 5, effectively preventing it from interfering with the elastic component 4 and ensuring the reliability of the support protection.

[0037] Specifically, such as Figure 9-12 As shown in the figure, in one embodiment of the present invention, the support plate 5 is provided with a limiting plate 23 on one axial side. The limiting plate 23 is formed by stamping and folding the side plate 22 and is opposite to the bottom plate 21, so that the elastic component 4 is accommodated in the space between the limiting plate 23 and the bottom plate 21. As can be seen from the figure, when the conductive component is not inserted, the first spring piece 41 above the elastic component 4 has abutted against the limiting plate 23. When the conductive component is inserted, the first spring piece 41 is restricted by the upper limiting plate 23 and cannot move upward, while the second spring piece 42 is restricted by the lower base plate 21 and cannot move downward. Under this bidirectional limiting effect, only the first curved segment 411 and the second curved segment 421 that are in contact with the conductive component undergo significant elastic deformation during the insertion process, generating a large clamping force on the conductive component. In contrast, if the limiting plate 23 is not provided, the insertion of the conductive component will push the first spring piece 41 to move upward. At this time, the degree of elastic deformation of the first curved segment 411 and the second curved segment 421 that are in contact with the conductive component is small, and the clamping force generated is also small. Therefore, this design effectively guides and concentrates the elastic deformation by providing the limiting plate 23, ensuring a stable and sufficient clamping force.

[0038] Furthermore, such as Figure 9-12As shown, a locking block 231 extends from the side of the limiting plate 23 to the opposite side plate 22. Correspondingly, the other side plate 22 is provided with a locking groove 224 that engages with the locking block 231. This structural design allows the two opposing side plates 22 to be connected to each other through the locking block 231 and the locking groove 224, forming a more integrated frame structure. This improves the overall structural strength and stability of the contact frame 2, making it more resistant to external mechanical stress. When subjected to vibration and impact, it effectively conducts and disperses energy between the two side plates, avoiding stress concentration in a localized area, thereby improving the overall vibration resistance. It also provides more solid support and protection for the internal conductive contact 3.

[0039] Specifically, such as Figure 12 As shown, in one embodiment of this utility model, the two sides of the support plate 5 are recessed inward to form two symmetrically arranged grooves 53. Correspondingly, the two side plates 22 are provided with two protruding edges 221 that extend upward corresponding to the grooves 53. The grooves 53 and the protruding edges 221 are engaged and fitted together to form a precise assembly and positioning structure. Laser welding points are also formed at the engagement points to ensure a reliable connection between the conductive contact 3 and the fixed support 1. In addition, the engagement between the grooves 53 and the protruding edges 221 forms an effective mechanical interlock in the axial direction, which can prevent relative axial displacement between the conductive contact 3 and the fixed support 1, thereby enhancing the stability and vibration resistance of the overall structure.

[0040] Specifically, such as Figure 13 As shown, in one embodiment of the present invention, the wiring part 12 includes two sets of wire clamping assemblies 121. Each wire clamping assembly 121 includes two clamping pieces 122. The two clamping pieces 122 open to form a wire clamping cavity 123. The inner wall of the wire clamping cavity 123 is provided with an anti-slip groove 124.

[0041] The working principle of this utility model is explained in detail below: This novel combined anti-vibration terminal achieves efficient conductivity and reliable vibration resistance through the synergistic effect of its split structure and elastic components. When an external conductive component is inserted through the connector, it first enters the clamping cavity formed by the first and second spring plates. As the conductive component is pushed in, it gradually expands the spring plate clamping opening, forcing the first and second spring plates to undergo elastic deformation, thereby applying a continuous clamping force to the conductive component in the vertical direction, ensuring a stable electrical connection. The wave-shaped bending structure of the spring plates forms multiple segments, each constituting a contact point, significantly increasing the contact area with the conductive component, improving conductivity and enhancing resistance to loosening. During insertion, the limiting plate and the base plate jointly constrain the movement range of the spring plates, concentrating the elastic deformation at the contact point and preventing overall displacement of the spring plates, thus maintaining the concentration and stability of the clamping force. The support plate and the contact frame form a closed protective structure, effectively isolating the direct impact of external vibrations on the elastic components. The free end of the support plate bends upward to form a buffer gap, allowing for slight elastic oscillation under vibration conditions, absorbing and attenuating vibration energy, and preventing rigid collisions. Meanwhile, the limiting structure on the side plate constrains the swing amplitude of the support plate, preventing excessive deformation. The wiring section uses a wire clamping assembly to crimp or weld the wires, and the anti-slip groove design prevents the wires from loosening. Overall, this terminal achieves a balance of high conductivity, vibration resistance, and long lifespan through the selection of separate materials, multi-contact point elastic clamping, and a buffer protection mechanism.

[0042] The innovation of this utility model lies in: Through a split design and structural optimization, the shortcomings of existing technologies are effectively addressed, resulting in the following significant advantages: First, the split structure allows for the use of different materials for the fixed support and conductive contacts. High-conductivity materials can be used for the conductive contacts to improve electrical performance, while conventional low-cost materials are used for the fixed support, significantly reducing production costs while ensuring conductivity. Second, the multi-contact design of the elastic component significantly increases the contact area with the conductive component, achieving lower contact resistance and a more stable electrical connection, effectively preventing contact loosening due to vibration. Third, the overall protective structure and buffering mechanism of the terminal effectively absorb and attenuate external vibration energy, significantly improving seismic resistance and long-term reliability under dynamic operating conditions, and reducing maintenance requirements. Furthermore, the terminal has a compact structure, is easy to assemble, and is suitable for automated production, improving production efficiency and product consistency. In summary, this invention achieves significant improvements in conductivity, economy, seismic stability, and applicability, meeting the stringent requirements of high-end electrical connection applications.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification 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 implementations that can be understood by those skilled in the art.

[0044] 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.

Claims

1. A combined anti-vibration terminal, characterized in that, The device includes a fixed support member (1), which has a contact part (11) and a wiring part (12). The contact part (11) has a contact frame (2). The contact frame (2) has a conductive contact member (3) separately formed from the fixed support member (1). The conductive contact member (3) has a guide interface (31) at the end away from the wiring part (12). An elastic component (4) extends from the guide interface (31) to the wiring part (12).

2. The combined anti-seismic terminal according to claim 1, characterized in that, The elastic component (4) includes a first spring sheet (41) and a second spring sheet (42) arranged side by side, with a clamping cavity (32) formed between the first spring sheet (41) and the second spring sheet (42), and the first spring sheet (41) and the second spring sheet (42) are bent together at the ends away from the guide interface (31) to form a spring sheet clamping mouth (43).

3. The combined anti-seismic terminal according to claim 2, characterized in that, Both the first spring piece (41) and the second spring piece (42) are wave-shaped bending structures. The first spring piece (41) and the second spring piece (42) are respectively provided with a first curved segment (411) and a second curved segment (421) that are close to each other and bent. The first curved segment (411) and the second curved segment (421) form a contact point at the top and bottom respectively.

4. The combined anti-seismic terminal according to claim 3, characterized in that, The first spring (41) and the second spring (42) are respectively provided with a first clamping groove (412) and a second clamping groove (422) extending along the axial direction in the middle part, so that the first spring (41) and the second spring (42) respectively form two first clamping arms (413) and two second clamping arms (423). The first curved segment (411) of the two first clamping arms (413) and the second curved segment (421) of the two second clamping arms (423) form two contact points at the top and bottom.

5. The combined anti-seismic terminal according to claim 1, characterized in that, The contact frame (2) includes a base plate (21) and two opposing side plates (22) that are stamped and folded from both sides of the base plate (21). A support plate (5) is provided above the conductive contact (3) and is opposite to the base plate (21). The support plate (5), the base plate (21) and the two side plates (22) enclose the elastic component (4) in the circumferential direction.

6. The combined anti-seismic terminal according to claim 5, characterized in that, One end of the support plate (5) is connected to the guide interface (31), and the other end has a free end that bends upward and forms a buffer gap with the elastic component (4).

7. A combined anti-vibration terminal according to claim 6, characterized in that, The support plate (5) has a first abutting block (51) extending downward and a second abutting block (52) extending laterally on both sides. The two side plates (22) are respectively provided with abutting grooves (222) corresponding to the first abutting block (51) and snap-fit ​​holes (223) corresponding to the second abutting block (52).

8. The combined anti-seismic terminal according to claim 5, characterized in that, The support plate (5) is also provided with a limiting plate (23) on one side. The limiting plate (23) is punched and folded from the side plate (22) and is opposite to the bottom plate (21). The elastic component (4) abuts and restricts between the limiting plate (23) and the bottom plate (21).

9. A combined anti-vibration terminal according to claim 8, characterized in that, The limiting plate (23) is also provided with a locking block (231) extending to the other side plate (22), and the other side plate (22) is provided with a locking groove (224) that engages with the locking block (231).

10. A combined anti-seismic terminal according to claim 5, characterized in that, The support plate (5) has at least one groove (51) on each side, and the two side plates (22) have a convex edge (221) corresponding to the groove (51). The groove (51) and the convex edge (221) fit together to form a welding point.

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