Hardware elastic sheet for wiring terminal
By designing a double contact arm and a fixing structure on the metal spring of the terminal block, the problem of poor contact of the metal spring under vibration or external impact is solved, and a more stable electrical connection is achieved.
Patent Information
- Application Number
- CN202520396213.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-07
AI Technical Summary
The metal springs of existing pluggable terminals are prone to poor contact or loosening when subjected to vibration or external impact, affecting the stability and reliability of the circuit.
Design a hardware spring for terminal blocks, which adopts a double contact arm structure and uses a fixing structure to firmly connect the bending arm and the support arm, thereby enhancing connection stability and structural strength.
It improves the connection stability and reliability of hardware springs, prevents deformation or loosening under external impact, and enhances durability and safety.
Smart Images

Figure CN223858585U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of wiring terminal, concretely relates to a hardware spring piece for wiring terminal. BACKGROUND
[0002] Wiring terminal as a kind of device for electrical connection, plays a vital role in numerous electronic equipment and electrical system. Among them, plug-in wiring terminal is in elastic contact with external pin and other conductive elements through its internal hardware spring piece, to realize the quick connection or disconnection of circuit. So that it is widely used in various control systems, power distribution equipment and automated production line.
[0003] Although existing plug-in wiring terminal can realize basic electrical connection function, due to its hardware spring piece usually adopts single contact arm connection mode, lead to when subjected to vibration or external force impact, easy to appear contact failure or connection loose condition, thereby affecting the stability and reliability of circuit. Therefore, the utility model provides a hardware spring piece for wiring terminal, connection stable. SUMMARY
[0004] The utility model provides a hardware spring piece for wiring terminal to solve the problem mentioned in above background art.
[0005] The utility model aims to realize the following way:
[0006] A hardware spring piece for wiring terminal, including body and respectively being located in the two sides of the body bending arm and support arm, the body with the first contact arm and the second contact arm of one end of the bending arm symmetry is provided with, the other end of the body is equipped with pin, the bending arm is connected with the support arm by fixed structure and is connected with cooperation.
[0007] Further, the first contact arm and the second contact arm are both elastic contact arms.
[0008] Further, the elastic contact arm includes bending part, contact part and guide part, the bending part extends outward along the body and one end of the bending arm, and is connected with one end of the contact part, the other end of the contact part is connected with the guide part.
[0009] Further, the contact part is C-shaped structure.
[0010] Further, the fixed structure includes fixed block and fixed slot, the fixed block and fixed slot are respectively located in one side of the bending arm and the support arm.
[0011] Further, the two sides of the body are equipped with the limiting baffle for fixed installation.
[0012] Further, the two sides of the limiting baffle are provided with outwardly extending protrusions.
[0013] The utility model discloses the beneficial effect has: through first, second contact arms of being arranged respectively on the body and the bending arm, when the hardware spring piece is connected with the pin and so on conductive element, can provide two-point contact, thereby enhancing the stability and reliability of connection. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is a first structure schematic view of a hardware spring piece for a terminal of the utility model;
[0015] Fig. 2 It is a second structure schematic view of a hardware spring piece for a terminal of the utility model; the reference numerals in the drawing are respectively: 1 - body, 2 - bending arm, 3 - support arm, 4 - pin, 5 - fixed structure, 51 - fixed block, 52 - fixed groove, 6 - elastic contact arm, 61 - bending part, 62 - contact part, 63 - guide part, 7 - limiting baffle, 71 - protrusion. DETAILED DESCRIPTION
[0016] The utility model will be further described in detail below in combination with the drawings and specific embodiment.
[0017] In this embodiment, refer to Figs. 1-2 The utility model discloses a hardware spring piece for a terminal, including body 1 and the bending arm 2 and support arm 3 of being arranged respectively on both sides of body 1, and the one end of body 1 and bending arm 2 is provided with first contact arm and second contact arm, and the other end of body 1 is equipped with pin 4, and pin 4 is used for carrying out electric connection with electronic element such as circuit board, and bending arm 2 is connected with support arm 3 through fixed structure 5 and cooperates.Through first, second contact arms of being arranged respectively on body 1 and bending arm 2, when the pin and so on conductive element is inserted into hardware terminal, is firmly held by first, second contact arms, to ensure the stable connection between conductive element and hardware spring piece.And through fixed structure 5, bending arm 2 and support arm 3 are firmly connected, and the whole hardware spring piece is a stable structure, thereby improve the stability and reliability of hardware spring piece.
[0018] The first contact arm and the second contact arm can clamp the conductive element by external pressure or elastic deformation of the first contact arm and the second contact arm. In the embodiment, the first contact arm and the second contact arm are both elastic contact arms 6. The elastic contact arm 6 comprises a bending portion 61, a contact portion 62 and a guide portion 63. The bending portion 61 extends outwardly along the body 1 and one end of the bending arm 2 and is connected to one end of the contact portion 62. The other end of the contact portion 62 is connected to the guide portion 63. The elastic contact arm 6 is provided so that the first contact arm and the second contact arm have good elasticity. The conductive element can be clamped in the hardware terminal without external pressure, thereby ensuring the stability of the connection. The guide portion 63 is provided to guide the conductive element when the conductive element is inserted, so that the conductive element can smoothly enter the clamping range of the contact portion 62.
[0019] Meanwhile, the contact portion 62 has a C-shaped structure, so that the contact arm is in linear contact when contacting the conductive element. The wear is reduced, and the appropriate contact area is reserved, thereby ensuring the stable transmission of the circuit.
[0020] The fixing structure 5 comprises a fixing block 51 and a fixing groove 52. The fixing block 51 and the fixing groove 52 are arranged on one side of the bending arm 2 and the supporting arm 3 respectively. The fixing block 51 and the fixing groove 52 are matched to stably connect the bending arm 2 and the supporting arm 3 and prevent loosening. Therefore, the overall structural strength of the hardware spring piece is improved, and the hardware spring piece is prevented from deforming or being damaged during use, thereby ensuring the stability and reliability of the hardware spring piece.
[0021] The body 1 is provided with a limiting baffle 7 for fixing installation on both sides. The limiting baffle 7 is provided with a protrusion 71 extending outwardly on both sides. The limiting baffle 7 is arranged to quickly install the hardware spring piece on the terminal, and the protrusions 71 on both sides of the limiting baffle 7 can stably fix the hardware spring piece on the terminal after installation, thereby preventing the hardware spring piece from shaking or falling off during use.
[0022] The hardware spring piece can provide double-point contact when connecting with the pin and other conductive elements, thereby enhancing the stability and reliability of the connection. The bending arm 2 and the supporting arm 3 are stably connected by the fixing structure 5, the overall structural strength of the hardware spring piece is improved, and the hardware spring piece is prevented from deforming or loosening when subjected to external impact, thereby improving the durability and safety of the hardware spring piece.
[0023] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed as above in the preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the disclosed technical content without departing from the technical solution of the present application, and any equivalent embodiment with equivalent changes is equivalent to the above embodiment. Any simple modification, equivalent change and modification of the above embodiment according to the present application technical solution are within the scope of the present application technical solution.
Claims
1. A hardware spring for a terminal, characterized by, The utility model relates to a kind of contact arm, including body (1) and respectively being arranged in the bending arm (2) and support arm (3) of body (1) two sides, the body (1) is symmetrically provided with first contact arm and second contact arm with the one end of the bending arm (2), the other end of the body (1) is equipped with needle foot (4), the bending arm (2) is connected with the support arm (3) by fixed structure (5) and is matched.
2. The spring clip for a terminal according to claim 1, wherein: The first contact arm and the second contact arm are both elastic contact arms (6).
3. The spring clip for a terminal according to claim 2, wherein: The elastic contact arm (6) includes a bending portion (61), a contact portion (62), and a guide portion (63). The bending portion (61) extends outward along the body (1) and the one end of the bending arm (2), and is connected and matched with one end of the contact portion (62). The other end of the contact portion (62) is connected and matched with the guide portion (63).
4. The spring clip for a terminal according to claim 3, wherein: The contact portion (62) is a C-shaped structure.
5. The spring clip for a terminal according to claim 1, wherein: The fixed structure (5) includes a fixed block (51) and a fixed groove (52). The fixed block (51) and the fixed groove (52) are respectively arranged on one side of the bending arm (2) and the support arm (3).
6. The spring clip for a terminal according to claim 1, wherein: Both sides of the body (1) are provided with a limiting stop edge (7) for fixed installation.
7. The spring clip for a terminal according to claim 6, wherein: Both sides of the limiting stop edge (7) are provided with outwardly extending protrusions (71).