Connection terminal structure with high vibration resistance and elastic sheet protection function
By introducing a support spring and an anti-overpressure tongue into the connection terminal, the vibration resistance problem of the connection terminal in a high vibration environment is solved, the stable connection and reliability of the spring are achieved, and failure caused by excessive deformation of the spring is avoided.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU ZHUCHENG ELECTRICAL CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-04-24
AI Technical Summary
Existing connection terminals have insufficient vibration resistance under high vibration environments, and are prone to insufficient spring pressure and elastic failure, leading to conductive contact failure and disconnection problems. In addition, they lack spring protection mechanisms.
A high vibration-resistant connection terminal structure was designed, including a support spring and an overpressure protection tongue. The support spring provides additional positive pressure, and the overpressure protection tongue prevents excessive deformation of the spring, forming a double spring structure to enhance stability. The terminal locking spring is locked to the female end sheath to prevent it from falling off.
It improves the vibration resistance of the connection terminal, ensures the stability and reliability of the spring in high vibration environment, and avoids elastic failure and reduced connection performance caused by excessive deformation of the spring.
Smart Images
Figure CN224164414U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical connector technology, specifically to a connection terminal structure with high vibration resistance and spring protection function. Background Technology
[0002] Electrical connectors, also called connection terminals, generally refer to electrical plugs. They are devices that connect two active devices to transmit current or signals. The male and female terminals can transmit information or current after contact. In terms of their connection function, insertion and extraction force is an important mechanical property. From a user perspective, a low insertion force facilitates insertion, while too low an extraction force will affect the reliability of the contact. The mechanical life of a connection terminal is related to the normal force of the contact spring, the coefficient of sliding friction at the contact points, and the alignment accuracy.
[0003] However, the operating conditions of the connecting terminals are quite complex, and sometimes they need to work under conditions of large vibration. The existing connecting terminals have insufficient vibration resistance. In high vibration environments, the spring pressure is insufficient, and the conductive contact between the male terminal and the spring fails. In addition, there is a lack of spring protection mechanism. During operation, the connecting terminals are prone to excessive compression of the spring due to operational errors of the male terminal, which leads to the failure of the spring elasticity and the problem of disconnection.
[0004] Therefore, how to provide a connection terminal structure with high vibration resistance and spring protection function to overcome the defects in the existing technology is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] Therefore, this utility model provides a connection terminal structure with high vibration resistance and spring protection function to solve the problems in the prior art where the connection terminal has insufficient vibration resistance and the connection terminal is prone to over-compression of the spring due to operation errors of the male terminal, resulting in failure of conductive contact between the male terminal and the spring, failure of the elasticity of the spring, and disconnection between the male terminal and the spring.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] This utility model discloses a connection terminal structure with high vibration resistance and spring protection function, including:
[0008] The terminal connection part is a hollow tubular structure, and a through groove is provided on the top of the terminal connection part. The terminal connection part is used to connect a male terminal.
[0009] The cable connector is integrally formed with the terminal connector, and the cable connector is used to connect cables.
[0010] The bottom contact is integrally formed with the terminal connection portion, and the bottom contact is disposed on the bottom surface of the terminal connection portion;
[0011] A terminal locking spring is integrally formed with the terminal connection part. The terminal locking spring is disposed on the top of the terminal connection part. The terminal locking spring is bent away from the terminal connection part. The side wall of the terminal connection part is provided with a return groove that the terminal locking spring can enter after deformation.
[0012] The main spring sheet is integrally formed with the terminal connection part, and the main spring sheet passes through the through groove and bends inward toward the interior of the terminal connection part;
[0013] The support spring is formed by bending the side wall of the terminal locking spring at an angle. The support spring extends through the through groove to the upper side of the main spring and abuts against the main spring to form a double spring structure.
[0014] The overpressure prevention tongue is formed by folding back a portion of the top wall of the terminal connection part by 180 degrees. The overpressure prevention tongue is disposed between the main spring and the terminal locking spring, and is used to prevent the main spring and the terminal locking spring from being excessively deformed.
[0015] Furthermore, the lower side wall of the supporting spring sheet completely abuts against the upper side wall of the main spring sheet.
[0016] Furthermore, the cable connector includes:
[0017] The pressure-pressing parts are arranged in pairs, and the inner sidewall of the pressure-pressing parts is provided with a plurality of pressure-pressing grooves;
[0018] The covering parts are arranged in pairs, with the two covering parts being staggered from each other.
[0019] Furthermore, the main spring contact is integrally formed at the position corresponding to the bottom contact on the bottom of the main spring contact.
[0020] Furthermore, the terminal locking spring includes:
[0021] The left wall of the spring contact is integrally formed with the side wall of the terminal connection portion;
[0022] The upper wall of the spring is integrally formed with the left wall of the spring, and the end of the upper wall of the spring extends downward to form a first pressure contact portion;
[0023] The right wall of the spring is integrally formed with the upper wall of the spring, and the supporting spring is disposed at the end of the right wall of the spring.
[0024] Furthermore, the left wall, upper wall, and right wall of the spring sheet, together with the top wall of the terminal connection portion, form an anti-misalignment opening, the cross-section of which is trapezoidal.
[0025] Furthermore, a second pressure contact is formed at the end of the left wall of the spring, and an inlet that cooperates with the second pressure contact is provided on the side wall of the terminal connection.
[0026] Furthermore, a plurality of insertion holes are provided on the side wall of the terminal connection part, and a plurality of insertion parts are formed on the top wall of the terminal connection part, and the insertion parts are inserted into the insertion holes.
[0027] This utility model has the following advantages:
[0028] This invention provides additional positive pressure to the main spring by incorporating a supporting spring, making the connection between the main spring and the male terminal more stable and reliable, and meeting higher vibration requirements. The inclusion of an anti-overpressure tongue limits the movement of the main spring and the terminal locking spring, preventing excessive deformation that could lead to elastic failure and reduced connection performance. The terminal locking spring ensures a secure connection between the terminal connection and the female end sheath, preventing the terminal connection from detaching from the female end sheath. Attached Figure Description
[0029] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0030] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0031] Figure 1 A perspective view of the high vibration resistance connection terminal structure with spring protection function provided by this utility model 1;
[0032] Figure 2 A perspective view of the cable connection part provided by this utility model 1;
[0033] Figure 3 A cross-sectional view of the terminal connection portion provided by this utility model 1;
[0034] Figure 4 A perspective view of the terminal locking spring provided by this utility model 1;
[0035] Figure 5 A plan view of the high vibration resistance connection terminal with spring protection function provided by this utility model 1;
[0036] Figure 6 A perspective view of this utility model 2.
[0037] In the diagram: 1 Terminal connection part; 11 Through slot; 12 Return slot; 13 Plug hole; 14 Plug part; 2 Cable connection part; 21 Wire pressing part; 22 Wire pressing groove; 23 Covering part; 3 Bottom contact; 4 Terminal locking spring; 41 Left wall of spring; 42 Upper wall of spring; 43 First pressing contact part; 44 Right wall of spring; 45 Anti-misinstallation port; 46 Second pressing contact part; 47 Inlet; 5 Main spring; 51 Main spring contact; 6 Support spring; 7 Anti-overpressure tongue. Detailed Implementation
[0038] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0039] Please refer to Figures 1-6 The high vibration resistance and spring protection structure of the connection terminal disclosed in this utility model will now be described. This utility model consists of 7 parts, as follows: Figure 1 , Figure 3 , Figure 5As shown, the device includes a terminal connection part 1, a cable connection part 2, a bottom contact 3, a terminal locking spring 4, a main spring 5, a support spring 6, and an overpressure protection tongue 7. The terminal connection part 1 is a hollow tubular structure with a through groove 11 at its top. The terminal connection part 1 is used to connect male terminals. The cable connection part 2 is integrally formed with the terminal connection part 1 and is used to connect cables. The bottom contact 3 is integrally formed with the terminal connection part 1 and is located on the bottom surface of the terminal connection part 1. The terminal locking spring 4 is integrally formed with the terminal connection part 1 and is located at the top of the terminal connection part 1. The terminal locking spring 4 bends away from the terminal connection part 1. The side wall of the terminal connection part 1 has a groove that allows the terminal locking spring 4 to deform and then pass through. The main spring 5 and the terminal connection part 1 are integrally formed in the groove 12. The main spring 5 passes through the through groove 11 and bends inward into the terminal connection part 1. The support spring 6 is formed by bending the side wall of the terminal locking spring 4 at an angle. The support spring 6 passes through the through groove 11 and extends to the upper side of the main spring 5. The support spring 6 abuts against the main spring 5 to form a double spring structure. The anti-overpressure tongue 7 is formed by folding back part of the top wall of the terminal connection part 1 by 180 degrees. The anti-overpressure tongue 7 is set between the main spring 5 and the terminal locking spring 4. The anti-overpressure tongue 7 is used to prevent excessive deformation of the main spring 5 and the terminal locking spring 4. The main spring 5 has a main spring contact 51 integrally formed at the position corresponding to the bottom contact 3. The lower side wall of the support spring 6 completely abuts against the upper side wall of the main spring 5. Figure 5 As shown, the present invention, when unfolded, is a sheet-like structure formed by cutting, processing, and folding. The terminal connection part 1 is formed by three folds, resulting in a hollow rectangular tubular structure. The terminal connection part 1 is inserted into the female end sleeve and locked in the female end sleeve by the terminal locking spring piece 4. The male terminal is inserted from its left side and contacts the bottom contact 3. The main spring piece 5 applies positive pressure to the male terminal from above, fixing the position and achieving connection. After the connector is mated, the male terminal contacts and conducts electricity with the main spring piece 5 and the bottom contact 3, achieving electrical signal connection. The specific shape of the terminal locking spring piece 4 is as follows. Figure 1 As shown, the terminal locking spring 4 is formed by two folds. During the insertion of the terminal connecting part 1 into the female end sleeve, the female end sleeve will press the terminal locking spring 4, causing it to deform towards the terminal connecting part 1 through the return groove 12. After the terminal connecting part 1 is inserted to the designated position, the terminal locking spring 4 springs back away from the terminal connecting part 1, thus locking the entire assembly. The main spring 5 is formed by bending inward from the top wall of the terminal connecting part 1. The main spring 5 has a main spring contact 51 at its bottom, and the main spring 5 contacts the male terminal. The shape of the supporting spring 6 is as follows: Figure 3As shown, after bending, it adheres tightly to the main spring piece 5 from the top. The advantage of this is that the supporting spring piece 6 abuts against the main spring piece 5, forming a double-spring structure. This provides additional positive pressure to the main spring piece 5 when the male terminal is inserted, making the connection stable and reliable, and meeting higher vibration requirements. By setting the supporting spring piece 6, additional positive pressure is provided to the main spring piece 5, making the connection between the main spring piece 5 and the male terminal more stable and reliable, meeting higher vibration requirements. The specific shape and position of the anti-overpressure tongue piece 7 are as follows... Figure 1 As shown, the structure of the overpressure protection tongue 7 is relatively rigid. By setting the overpressure protection tongue 7, it can limit the main spring 5 and the terminal locking spring 4, and prevent the main spring 5 and the terminal locking spring 4 from excessive deformation, which would lead to elastic failure and reduced connection performance.
[0040] like Figure 2 As shown, the cable connector 2 includes a wire clamping part 21 and a covering part 23. The wire clamping parts 21 are arranged in pairs, and a plurality of wire clamping grooves 22 are formed on the inner sidewall of the wire clamping part 21. The covering parts 23 are arranged in pairs, and the two covering parts 23 are staggered. The specific structure of the wire clamping part 21 and the covering part 23 is as follows. Figure 2 As shown, the crimping part 21 is connected to the cable core through the crimping groove 22, realizing crimping and conduction with the wire to form a stable electrical connection. In use, the covering part 23 can be pinched from both sides to deform it and clamp the cable inside.
[0041] like Figure 4 As shown, the terminal locking spring 4 includes a left wall 41, an upper wall 42, and a right wall 44. The left wall 41 is integrally formed with the side wall of the terminal connection part 1. The upper wall 42 is integrally formed with the left wall 41. The end of the upper wall 42 extends downward to form a first pressing contact 43. The right wall 44 is integrally formed with the upper wall 42. A supporting spring 6 is disposed at the end of the right wall 44. The terminal locking spring 4 is formed by two folds to form the left wall 41, the upper wall 42, and the right wall 44. The supporting spring 6 is formed by bending the end of the right wall 44 obliquely towards the terminal connection part 1. The first pressing contact 43 can press against the top of the anti-overpressure tongue 7 to prevent excessive deformation of the terminal locking spring 4. During the process of inserting the terminal connection part 1 into the female end sheath, the overpressure prevention tongue 7 is located below the terminal locking spring 4, which can prevent the terminal locking spring 4 from losing its elasticity due to excessive deformation, thereby resulting in insufficient holding force and falling out of the female end sheath.
[0042] like Figure 4 As shown, the left wall 41, upper wall 42, and right wall 44 of the spring sheet, together with the top wall of the terminal connection part 1, form an anti-misfit insertion opening 45. The cross-section of the anti-misfit insertion opening 45 is trapezoidal. The anti-misfit insertion opening 45 prevents the terminal from being inserted in the wrong direction.
[0043] like Figure 6The figure shows the second embodiment of this utility model. Since the second embodiment differs only slightly from the first embodiment, the figure mainly shows the distinguishing features. A second pressure contact 46 is formed at the end of the left wall 41 of the spring contact, and an inlet 47 that mates with the second pressure contact 46 is provided on the side wall of the terminal connection portion 1. In the second embodiment, the second pressure contact 46 extends downward from the end of the left wall 41 of the spring contact. The second pressure contact 46 mates with the inlet 47 to prevent excessive deformation of the terminal locking spring contact 4.
[0044] like Figure 4 As shown, a plurality of insertion holes 13 are provided on the side wall of the terminal connection portion 1, and a plurality of insertion portions 14 are formed on the top wall of the terminal connection portion 1. The insertion portions 14 are inserted into the insertion holes 13. The insertion holes 13 and insertion portions 14 exist in both embodiments, and their function is to enhance the structure of the terminal connection portion 1 and make the terminal connection portion 1 more stable.
[0045] The usage process of this utility model embodiment is as follows:
[0046] First, insert the male terminal into the terminal connection part 1. The main spring 5 applies positive pressure to the male terminal from above and fixes its position. The support spring 6 presses against the main spring 5 from above to provide additional positive pressure to the main spring 5. The male terminal and the bottom contact 3gap of the main spring 5 make contact and conduction, realizing the connection of electrical signals.
[0047] Then, the terminal connector 1 is inserted into the female end sleeve. The female end sleeve will press the terminal locking spring 4, causing it to deform towards the terminal connector 1 through the return groove 12. After the terminal connector 1 is inserted into the designated position, the terminal locking spring 4 will spring back away from the terminal connector 1, thus locking the whole.
[0048] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.
Claims
1. A connection terminal structure with high vibration resistance and spring protection function, characterized in that, include: The terminal connection part (1) is a hollow tubular structure. A through groove (11) is provided on the top of the terminal connection part (1). The terminal connection part (1) is used to connect a male terminal. The cable connection part (2) is integrally formed with the terminal connection part (1), and the cable connection part (2) is used to connect the cable; The bottom contact (3) is integrally formed with the terminal connection part (1), and the bottom contact (3) is disposed on the bottom surface of the terminal connection part (1); Terminal locking spring (4) is integrally formed with the terminal connection part (1). The terminal locking spring (4) is disposed on the top of the terminal connection part (1). The terminal locking spring (4) is bent away from the terminal connection part (1). The side wall of the terminal connection part (1) is provided with a return groove (12) that the terminal locking spring (4) can enter after deformation. The main spring piece (5) is integrally formed with the terminal connection part (1). The main spring piece (5) passes through the through groove (11) and bends into the interior of the terminal connection part (1). The support spring (6) is formed by bending the side wall of the terminal locking spring (4) obliquely. The support spring (6) extends through the through groove (11) to the upper side of the main spring (5). The support spring (6) abuts against the main spring (5) to form a double spring structure. The overpressure prevention tongue (7) is formed by folding back a portion of the top wall of the terminal connection part (1) by 180 degrees. The overpressure prevention tongue (7) is disposed between the main spring (5) and the terminal locking spring (4). The overpressure prevention tongue (7) is used to prevent the main spring (5) and the terminal locking spring (4) from excessive deformation.
2. The connection terminal structure having a high vibration resistance and a spring protection function according to claim 1, wherein The lower side wall of the supporting spring (6) completely abuts against the upper side wall of the main spring (5).
3. The connection terminal structure having a high vibration resistance and a spring protection function according to claim 1, wherein The cable connector (2) includes: The pressure part (21) is arranged in pairs, and the inner sidewall of the pressure part (21) is provided with a plurality of pressure grooves (22); The covering parts (23) are arranged in pairs, and the two covering parts (23) are staggered from each other.
4. The connection terminal structure having a high vibration resistance and a spring protection function according to claim 1, wherein The bottom of the main spring plate (5) is integrally formed with a main spring plate contact (51) at a position corresponding to the bottom contact (3).
5. The connection terminal structure having a high vibration resistance and a spring protection function according to claim 1, wherein The terminal locking spring (4) includes: The left wall (41) of the spring is integrally formed with the side wall of the terminal connection part (1); The upper wall (42) of the spring is integrally formed with the left wall (41) of the spring, and the end of the upper wall (42) of the spring extends downward to form a first pressure contact (43); The right wall (44) of the spring is integrally formed with the upper wall (42) of the spring, and the supporting spring (6) is disposed at the end of the right wall (44) of the spring.
6. The connection terminal structure having a high vibration resistance and a spring protection function according to claim 5, wherein The left wall (41), upper wall (42), and right wall (44) of the spring sheet together with the top wall of the terminal connection part (1) form an anti-misfit installation opening (45), and the cross section of the anti-misfit installation opening (45) is trapezoidal.
7. The high vibration resistance connection terminal structure with spring protection function as described in claim 5, characterized in that, The end of the left wall (41) of the spring is provided with a second pressure contact (46), and the side wall of the terminal connection (1) is provided with an inlet (47) that cooperates with the second pressure contact (46).
8. The connection terminal structure having a high vibration resistance and a spring protection function according to claim 1, wherein The terminal connection part (1) has a plurality of insertion holes (13) on its side wall and a plurality of insertion parts (14) on its top wall. The insertion parts (14) are inserted into the insertion holes (13).