Double-supporting-arm elastic sheet connector
By using a double support arm structure and a limiting groove and protrusion design, the fatigue failure and wobbling problems of single support arm spring connectors are solved, achieving higher fatigue resistance and wiring stability, while maintaining the stability and insulation of the connector at high temperatures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONG GUAN CREATOR PRECISION METAL CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional single-support arm spring connectors are prone to fatigue cracks when subjected to loads, as the force is concentrated in a local area. They are also prone to failure after long-term use and are susceptible to shaking and vibration under dynamic loads, which reduces their fatigue resistance.
It adopts a double support arm structure, which drives the tilting arm to move through the contact arc, distributing the load to the two support arms, reducing vibration and swaying. The wiring stability is increased by limiting grooves and limiting protrusions, and high-temperature resistant insulation materials are used to ensure stability in high-temperature environments.
It improves the connector's fatigue resistance, reduces vibration and shaking, increases wiring stability, and maintains insulation performance in high-temperature environments to prevent leakage.
Smart Images

Figure CN224249081U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, specifically a double-support arm spring connector. Background Technology
[0002] A spring connector is an electronic connector that mainly utilizes the elasticity of a spring. When the connector is inserted into a mating part, the spring will undergo elastic deformation and generate a certain elastic force, thereby making close contact with the conductor of the mating part and achieving a reliable electrical connection.
[0003] When a traditional single-support arm spring connector is subjected to load, the force is mainly concentrated in a local area between the support arm and the connection point. After long-term repeated stress, fatigue cracks are prone to occur in this area. Over time, the cracks will gradually expand, eventually leading to connector failure. At the same time, when the single support arm is subjected to external forces, it is prone to shaking and vibration. Under dynamic load conditions, this shaking and vibration will cause the support arm to bear additional alternating stress, accelerating the accumulation of fatigue damage and reducing the connector's fatigue resistance. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a double-support arm spring connector, which has advantages such as good fatigue resistance and solves the problem of poor fatigue resistance of single-support arm spring connectors.
[0005] This utility model discloses a double-support arm spring connector, comprising a housing. A first fixing block and a second fixing block are fixedly disposed at the bottom and top of the inner cavity of the housing, respectively. A connecting assembly is provided between the first fixing block and the second fixing block. The connecting assembly includes a welding part. One side and the top of the welding part are fixedly connected to the first fixing block and the second fixing block, respectively. A bent arm is fixedly connected to one end of the welding part. An inclined arm is fixedly connected to one end of the bent arm. An abutting arc is provided at one end of the inclined arm. A first support arm is fixedly connected to one end of the abutting arc. A second support arm is fixedly disposed on one side of the inclined arm and on one side of the first support arm. Limiting grooves are formed on the surfaces of the first support arm and the welding part penetrates through the inner cavity of the two limiting grooves. The top of the housing is provided with a first through hole and a second through hole for use with the connecting assembly. By pressing against the contact arc, the contact arc drives the tilting arm to move closer to the welding part. The bending arm, in conjunction with the tilting arm's movement, drives the limiting groove, the first support arm, and the second support arm to move away from the welding part. At this point, the limiting groove is exposed. The wire is inserted through the second through hole, passing through the inner cavity of the two limiting grooves. Then, the pressure on the contact arc is released, and the bending arm rebounds, driving the tilting arm to move. The tilting arm's movement resets the first and second support arms, which in turn resets the two limiting grooves. When the limiting grooves are in close contact with the wire, the wire is effectively limited. This dual-support-arm structure distributes the load to the first and second support arms, reducing the stress on each arm. The combined effect of these two structures reduces vibration and shaking of the connector and wire under external force, overcoming the fatigue failure of a single support arm under high-frequency vibration or long-term load, thus increasing the connector's fatigue resistance.
[0006] This utility model discloses a double-support arm spring connector, wherein one side of each of the first and second support arms is fixedly provided with a contact portion, and the two contact portions cooperate with the first and second support arms. By providing two contact portions, the wiring can be limited, increasing the stability of the wiring and reducing the possibility of wiring shaking.
[0007] This utility model discloses a double-support arm spring connector, wherein the first through hole and the second through hole are of the same size, and the first through hole and the second through hole are centrally symmetrical about the outer shell.
[0008] This utility model discloses a double-support arm spring connector, wherein the side of the first fixing block that contacts the welding part is arc-shaped, and the arc of the connection between the first fixing block and the welding part is consistent.
[0009] This utility model discloses a double-support arm spring connector, wherein one end of each of the two contact portions is provided with a limiting protrusion, and the limiting protrusion is arranged in an array. By setting the limiting protrusion to limit the wiring, the stability of the connector and the wiring is further increased, and the situation of poor contact due to wiring misalignment is reduced.
[0010] This utility model discloses a double-support arm spring connector, wherein the outer shell is made of high-temperature resistant insulating engineering plastic and is injection molded. By using high-temperature resistant insulating material, the connector can maintain good stability in high-temperature environments, avoiding connection problems caused by material softening or deformation. At the same time, it can maintain excellent insulation performance under high-temperature conditions, reducing the possibility of connector leakage.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. This utility model uses a pressing contact arc to move an inclined arm closer to the welding part. A bending arm, in conjunction with the inclined arm's movement, moves the limiting groove, first support arm, and second support arm away from the welding part. At this point, the limiting groove is exposed. A wire is inserted through the second through hole, passing through the inner cavity of the two limiting grooves. Then, the pressing on the contact arc is released, and the bending arm rebounds, moving the inclined arm. This movement resets the first and second support arms, which in turn reset the two limiting grooves. When the limiting grooves are in close contact with the wire, they effectively limit the wire's position. By using a double support arm structure, the load is distributed to the first and second support arms, resulting in relatively low stress on each support arm. This combination reduces vibration and shaking of the connector and wire under external force, overcoming the fatigue failure of a single support arm under high-frequency vibration or long-term load, thus increasing the connector's fatigue resistance.
[0013] 2. By setting two contact parts, this utility model can limit the wiring, increase the stability of the wiring, and reduce the occurrence of wiring shaking;
[0014] By setting limit protrusions to limit the wiring, the stability of the connector and wiring is further increased, and the situation of poor contact due to wiring misalignment is reduced.
[0015] By using high-temperature resistant insulating materials, the connector can maintain good stability in high-temperature environments, avoiding connection problems caused by material softening or deformation. At the same time, it can maintain excellent insulation performance under high-temperature conditions, reducing the possibility of leakage in the connector. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the connecting component structure of this utility model.
[0019] In the figure: 1. Outer shell; 2. First fixing block; 3. Second fixing block; 4. Connecting assembly; 401. Welding part; 402. Bending arm; 403. Inclined arm; 404. Abutting arc part; 405. First support arm; 406. Second support arm; 407. Limiting groove; 408. Contact part; 5. First through hole; 6. Second through hole. Detailed Implementation
[0020] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.
[0021] Please see Figure 1-2This utility model discloses a double-support arm spring connector, including a housing 1. A first fixing block 2 and a second fixing block 3 are fixedly provided at the bottom and top of the inner cavity of the housing 1, respectively. A connecting component 4 is provided between the first fixing block 2 and the second fixing block 3. The connecting component 4 includes a welding part 401. One side and the top of the welding part 401 are fixedly connected to the first fixing block 2 and the second fixing block 3, respectively. A bent arm 402 is fixedly connected to one end of the welding part 401. An inclined arm 403 is fixedly connected to one end of the bent arm 402. An abutting arc part 404 is provided at one end of the inclined arm 403. A first support arm 405 is fixedly connected to one end of the abutting arc part 404. A second support arm 406 is fixedly provided on one side of the inclined arm 403 and on one side of the first support arm 405. Limiting grooves 407 are provided on the surfaces of the first support arm 405 and the second support arm 406. The welding part 401 is provided through the inner cavity of the two limiting grooves 407. The top of the housing 1 is provided with a first through hole 5 and a second through hole 6 for use with the connecting component 4. By pressing against the contact arc 404, the contact arc 404 drives the tilting arm 403 to move towards the side closer to the welding part 401. The bending arm 402, in coordination with the tilting arm 403, moves the contact arc 404 and the tilting arm 403, causing the limiting groove 407, the first support arm 405, and the second support arm 406 to move away from the welding part 401. At this point, the limiting groove 407 is exposed. The wiring is then inserted through the second through hole 6, passing through the inner cavity of the two limiting grooves 407. Then, the pressure on the contact arc 404 is released, and the bending arm 402 rebounds, causing the tilting arm 403 to move. The movement of the tilting arm 403 then drives the first support arm 405... The first support arm 405 and the second support arm 406 are reset. The reset of the first support arm 405 and the second support arm 406 drives the two limiting grooves 407 to reset. When the limiting grooves 407 are reset to close contact with the wiring, the wiring can be limited. By setting up a double support arm structure, the load can be distributed to the first support arm 405 and the second support arm 406 respectively when bearing load, so that the stress on each support arm is relatively small. Through the cooperation of the two, when subjected to external force, the vibration and shaking of the connector and the wiring can be reduced, which makes up for the defect of a single support arm being prone to fatigue failure under high frequency vibration or long-term load, thereby increasing the fatigue resistance of the connector.
[0022] One side of the first support arm 405 and the second support arm 406 are each fixedly provided with a contact portion 408, and the two contact portions 408 cooperate with the first support arm 405 and the second support arm 406. By providing two contact portions 408, the wiring can be limited, increasing the stability of the wiring and reducing the possibility of the wiring shaking.
[0023] The first through hole 5 and the second through hole 6 are the same size, and the first through hole 5 and the second through hole 6 are arranged symmetrically about the outer shell 1.
[0024] The present invention provides a double support arm spring connector, wherein the side of the first fixing block 2 that contacts the welding part 401 is arc-shaped, and the arc of the connection between the first fixing block 2 and the welding part 401 is consistent.
[0025] Each of the two contact portions 408 has a limiting protrusion at one end, and the limiting protrusions are arranged in an array. By setting the limiting protrusions to limit the wiring, the stability of the connector and the wiring is further increased, and the possibility of poor contact due to wiring misalignment is reduced.
[0026] The outer shell 1 is made of high-temperature resistant insulating engineering plastic and is injection molded. By using high-temperature resistant insulating materials, the connector can maintain good stability in high-temperature environments, avoiding connection problems caused by material softening or deformation. At the same time, it can maintain excellent insulation performance under high-temperature conditions, reducing the possibility of leakage current in the connector.
[0027] When using this utility model: By pressing the contact arc part 404, the contact arc part 404 drives the tilting arm 403 to move towards the side closer to the welding part 401. By bending the arm 402 in coordination with the tilting arm 403, the movement of the contact arc part 404 and the tilting arm 403 drives the limiting groove 407, the first support arm 405 and the second support arm 406 to move away from the welding part 401. At this time, the limiting groove 407 is exposed. The wire is inserted through the second through hole 6 into the inner cavity of the two limiting grooves 407. Then, the pressure on the contact arc part 404 is released, and the bending arm 402 rebounds, driving the tilting arm 403 to move. The movement of the tilting arm 403 drives the first support arm 407 to move away from the welding part 401. The first support arm 405 and the second support arm 406 are reset. The reset of the first support arm 405 and the second support arm 406 drives the two limiting grooves 407 to reset. When the limiting grooves 407 are reset to close contact with the wiring, the wiring can be limited. By setting a double support arm structure, the load can be distributed to the first support arm 405 and the second support arm 406 respectively when bearing load, so that the stress on each support arm is relatively small. Through the cooperation of the two, the vibration and shaking of the connector and the wiring can be reduced when subjected to external force, which makes up for the defect of a single support arm being prone to fatigue failure under high frequency vibration or long-term load, thereby increasing the fatigue resistance of the connector.
[0028] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A double-support arm spring connector, comprising a housing (1), characterized in that: The bottom and top of the inner cavity of the outer shell (1) are respectively fixedly provided with a first fixing block (2) and a second fixing block (3). A connecting assembly (4) is provided between the first fixing block (2) and the second fixing block (3). The connecting assembly (4) includes a welding part (401). One side and the top of the welding part (401) are respectively fixedly connected to the first fixing block (2) and the second fixing block (3). A bending arm (402) is fixedly connected to one end of the welding part (401). An inclined arm (403) is fixedly connected to one end of the bending arm (402). One end of the arm is provided with an abutting arc (404), and one end of the abutting arc (404) is fixedly connected to a first support arm (405). A second support arm (406) is fixedly provided on one side of the tilting arm (403) and on one side of the first support arm (405). Limiting grooves (407) are opened on the surfaces of the first support arm (405) and the second support arm (406), and the welding part (401) is provided through the inner cavity of the two limiting grooves (407). The top of the outer shell (1) is provided with a first through hole (5) and a second through hole (6) that cooperate with the connecting component (4).
2. The double-support arm spring connector according to claim 1, characterized in that: The first support arm (405) and the second support arm (406) are each provided with a contact portion (408) on one side, and the two contact portions (408) are used in conjunction with the first support arm (405) and the second support arm (406).
3. A double-support arm spring connector according to claim 1, characterized in that: The first through hole (5) and the second through hole (6) are the same size, and the first through hole (5) and the second through hole (6) are centrally symmetrical about the outer shell (1).
4. A double-support arm spring connector according to claim 1, characterized in that: The side of the first fixing block (2) that contacts the welding part (401) is arc-shaped, and the arc of the connection between the first fixing block (2) and the welding part (401) is consistent.
5. A double-support arm spring connector according to claim 2, characterized in that: Each of the two contact portions (408) has a limiting protrusion at one end, and the limiting protrusions are arranged in an array.
6. A double-support arm spring connector according to claim 1, characterized in that: The outer shell (1) is made of high-temperature resistant insulating engineering plastic and is injection molded.