Connector structure capable of guiding and improving contact reliability
By setting the conductive terminal structure of the guide plate and additional contact arms in the connector, the reliability and durability of the connector in high vibration environments is solved, and stable connection and life extension are achieved during frequent plug-ins and unplugging.
Patent Information
- Application Number
- CN202422138461.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-02
Smart Images
Figure CN223079394U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coupling devices for connecting circuits, and particularly relates to a connector structure with guiding and enhanced contact reliability. Background Art
[0002] A connector is a coupling device for connecting electrical terminals to form a circuit. Through the connector, connections between wires, cables, printed circuit boards, and electronic components can be achieved, and data, power, and signals can be reliably transmitted in the harshest environments and under the most extreme usage conditions. Thus, higher performance can be achieved while reducing the application scale and power consumption through the connector.
[0003] However, with the development of the industrial Internet of Things, the demand for smaller and more reliable connectors is increasing. Especially in harsh industrial applications such as high vibration, a more reliable and inexpensive connection solution is required. Therefore, through multiple experimental verifications, we have proposed a new technical solution, which can obtain more excellent performance in terms of durability and reliability compared with similar products. Summary of the Utility Model
[0004] Therefore, the utility model provides a connector structure with guiding and enhanced contact reliability, so that the connector can be repeatedly and frequently inserted and removed, and the service life can be increased.
[0005] In order to achieve the above object, the utility model provides the following technical solutions:
[0006] The utility model discloses a connector structure with guiding and enhanced contact reliability, the bottom of which is connected to a three-phase connector equipped with conductive posts, and includes:
[0007] An insulating housing, which contains three conductive terminals inside, and the three conductive terminals are connected to a three-phase power supply through conductive posts;
[0008] The conductive terminal is formed by bending a metal conductive thin plate along the central axis of the metal conductive thin plate through a stamping process. A perforation is provided at the central axis position of the metal conductive thin plate, and flanges are formed on the front and rear sides of the perforation to form additional contact arms;
[0009] Wherein, the conductive post is inserted into the perforation and abuts against the surface of the additional contact arm.
[0010] Further, a pair of guiding plates are symmetrically arranged on the left and right sides of the perforation, and grooves communicating with the perforation are provided on the guiding plates.
[0011] Further, the outer edge of the guiding plate is turned downwards to form a clamping portion, and the clamping portion abuts against the insulating housing.
[0012] Further, the insulating housing includes:
[0013] The base body is provided with three mounting positions in a triangular arrangement inside.
[0014] The mounting position includes a wire slot, a limiting protrusion and a clamping groove. The wire slot is communicated with the clamping groove. The guiding plate is arranged in the clamping groove. The clamping part abuts against the limiting protrusion. The limiting protrusion is arranged at the connection of the wire slot and the clamping groove.
[0015] Further, a pair of wire clamping plates are arranged on the front side of the clamping part, and the wire clamping plates are tilted upward along the central axis of the metal conductive thin plate.
[0016] Further, an elastic support piece is arranged on the front side of the wire clamping plate. The elastic support piece is bent downward along the central axis of the metal conductive thin plate and abuts against the inner wall of the wire slot.
[0017] Further, after the conductive terminal is stamped and formed, it is rapidly quenched and cooled at a cooling rate of 20 - 300 °C / s, so that austenite is transformed into martensite.
[0018] Further, a sliding inclined surface is arranged between the limiting protrusion and the wire slot, and the clamping part is adapted to move along the sliding inclined surface.
[0019] Further, the surface of the conductive terminal has a chromium plating anti-rust layer.
[0020] Further, the insulating shell is manufactured by three-dimensional printing of carbon fiber.
[0021] The utility model has the following advantages:
[0022] The structure of the utility model is simple and durable. In terms of the structure of the terminal, a perforation is provided for sleeving a conductive column, and arc-shaped additional contact arms are arranged on both sides of the perforation. By using the additional contact arms to abut against the surface of the conductive column, while improving the stability of the conductive column, the cross-sectional area of the current flowing through is increased, the heat generation is reduced, and the firmness of the insertion of the conductive column is improved. Compared with the prior art, the connector can achieve the effect of repeated frequent plugging and unplugging and to a certain extent improve the service life of the connector. Description of the Drawings
[0023] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained according to the provided drawings.
[0024] The structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present utility model.
[0025] Figure 1 is a three-dimensional view of the connector provided by the present utility model;
[0026] Figure 2 is a three-dimensional view of the internal structure of the connector provided by the present utility model;
[0027] Figure 3 is a three-dimensional view of the terminal provided by the present utility model;
[0028] Figure 4 is a three-dimensional view of the unfolded structure of the terminal provided by the present utility model;
[0029] Figure 5 is a three-dimensional view of the unfolded structure of the terminal provided by the present utility model;
[0030] Figure 6 The present utility model is in Figure 5 a cross-sectional view at A - A;
[0031] Figure 7 is a broken line graph of the force comparison after adding an additional contact arm to the present utility model;
[0032] Figure 8 is a stress grid distribution diagram of the conductive terminal of the present utility model;
[0033] In the figure: 1 insulating housing; 11 base body; 12 wire installation groove; 13 limiting protrusion; 14 clamping groove; 2 conductive terminal; 3 perforation; 4 additional contact arm; 5 elastic support piece; 6 wire clamping plate; 7 clamping part; 8 groove; 9 sliding inclined plane. Specific implementation manners
[0034] The following specific embodiments illustrate the implementation manners of the present utility model. Those who are familiar with this technology can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0035] Please refer to Figures 1-8, with a connector structure that guides and increases contact reliability, the bottom of which is connected to a three-phase connector equipped with a conductive column, and the main structure includes an insulating shell 1 and a conductive terminal 2, wherein three conductive terminals 2 are installed inside the insulating shell 1, and the conductive terminal 2 itself is made of metal and has certain strength and elasticity. The conductive terminal 2 can clamp and contact the conductive column through its own structure, thereby being connected to the three-phase connector to connect the three-phase power supply.
[0036] In some embodiments, Figure 4 The outer edge of the guide plate is turned downward to form a clamping portion 7, and the clamping portion 7 is against the insulating shell 1. When the terminal is inserted into the insulating shell 1, the clamping portion 7 will pass through the limiting protrusion 13, and a sliding inclined surface 9 is provided between the limiting protrusion 13 and the wire loading groove 12. The clamping portion 7 is suitable for moving along the sliding inclined surface 9. When the clamping portion 7 slides on the sliding inclined surface 9, the clamping portion 7 will be narrowed, and then after passing through the sliding inclined surface 9, the clamping portion 7 opens and abuts against the limiting protrusion 13, and at this time, the guide plate also abuts against the clamping groove 14, which can be referred to Figure 2 , thereby, the entire terminal can be firmly clamped in the insulating shell 1.
[0037] In this embodiment, the insulating shell 1 is manufactured by injection molding or carbon fiber 3D printing, and includes a base 11 and three mounting positions arranged in a herringbone shape inside. Specifically, the mounting position includes a wire loading groove 12, a limiting protrusion 13 and a clamping groove 14, wherein the wire loading groove 12 is connected to the clamping groove 14, and the wire loading groove 12 is used to install the cable connector and is fixed by the clamping plate 6. A guide plate is arranged in the clamping groove 14, and the clamping portion 7 is against the limiting protrusion 13, and the limiting protrusion 13 is arranged at the connection between the wire loading groove 12 and the clamping groove 14.
[0038] Specifically, Figure 3 and Figure 4 The clamping plates 6 are arranged in pairs and are located in front of the clamping portion 7. In terms of shape, the clamping plates 6 are tilted upward along the central axis of the metal conductive sheet. During the forming process of the metal conductive sheet, the clamping plates 6 can be narrowed toward the central axis of the metal conductive sheet. Based on this structure, an elastic support sheet 5 is arranged in front of the clamping plates 6. The elastic support sheet 5 is bent downward along the central axis of the metal conductive sheet and abuts against the inner wall of the wire installation groove 12.
[0039] In this embodiment, the conductive terminal 2 is formed by a metal conductive sheet through a die through multiple stamping and blanking. The central axis of the metal conductive sheet is bent, and a through hole 3 is formed at the central axis of the metal conductive sheet. The through hole 3 can be set on the conductive column. In addition, the front and rear sides of the through hole 3 are turned to form an additional contact arm 4. The additional contact arm 4 is formed by cutting and rolling up after the through hole 3 is formed. Among them, after the conductive column is inserted into the through hole 3, it can be against the surface of the additional contact arm 4.
[0040] As Figure 7 , compared with the prior art, after the additional contact arm 4 is provided on the perforation 3, the firmness after the conductive post is inserted into the perforation 3 can be significantly improved. Obviously, the insertion process of the conductive post is relatively stable and the insertion force has no sudden change. For a terminal without the additional contact arm 4, after the conductive post is inserted, the insertion force changes significantly during the insertion process, which easily leads to problems such as poor contact. Further, after the additional contact arm 4 is provided, many beneficial effects can also be obtained. For example, the insertion force of the conductive post will be reduced. At the same time, the additional contact points are added between the post and the terminal, the contact resistance is reduced, and the shaking amount between the post and the terminal is effectively reduced, making the contact more reliable, thereby increasing the plugging and unplugging life.
[0041] In some embodiments, as Figure 4 , during the forming process of the metal conductive thin plate, a pair of guide plates are left on the left and right sides of the perforation 3. The pair of guide plates are symmetrically arranged along the left and right sides of the perforation 3. And, a groove 8 communicating with the perforation 3 is provided on the guide plate. When the metal conductive thin plate is bent at a right angle along the central axis, the two grooves 8 are aligned with each other and communicate with the perforation 3, so as to provide a guiding function for the conductive post by using the groove 8.
[0042] In the specific embodiment disclosed by the present utility model, as Figure 8 , during the forming process of the conductive terminal 2, certain heat treatment is also required to improve the yield strength and surface hardness of the structural member, so as to further improve the durability of the product. Specifically, after the conductive terminal 2 is stamped and formed, it is rapidly quenched and cooled at a cooling rate of 20 - 300 °C / s, so that the austenite is transformed into martensite. As a result, the grains of the material are more balanced, more excellent structural mechanical properties are obtained, and the stress distribution is more balanced. At the same time, the terminal provided with the additional contact arm 4 also obtains corresponding improvement in thermodynamic performance. As shown in the following table, the temperature rise of the terminal provided with the additional contact arm 4 after ten pluggings and unplugging is significantly lower.
[0043]
[0044] In this embodiment, the surface of the conductive terminal 2 has a chromium-plated anti-rust layer to improve its corrosion resistance.
[0045] Although the present utility model has been described in detail above with general descriptions and specific embodiments, based on the present utility model, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present utility model all fall within the scope of protection required by the present utility model.
Claims
1. A connector structure with guiding and increased contact reliability, whose bottom is connected to a three-phase joint equipped with conductive posts, is characterized in that include: An insulating shell (1) is provided with three conductive terminals (2) inside, and the three conductive terminals (2) are connected to a three-phase power supply through conductive posts; The conductive terminal (2) is made of a metal conductive sheet by bending it at the center axis of the metal conductive sheet through a stamping process, a through hole (3) is provided at the center axis of the metal conductive sheet, and the front and rear side flanges of the through hole (3) form an additional contact arm (4); The conductive column is inserted into the through hole (3) and abuts against the surface of the additional contact arm (4).
2. The connector structure with guiding and increased contact reliability according to claim 1, characterized in that, A pair of guide plates are symmetrically arranged on the left and right sides of the through hole (3), and a groove (8) communicating with the through hole (3) is arranged on the guide plate.
3. The connector structure with guiding and enhanced contact reliability as claimed in claim 2, wherein The outer edge of the guide plate is turned downward to form a clamping portion (7), and the clamping portion (7) abuts against the insulating shell (1).
4. The connector structure with guiding and increased contact reliability as described in claim 3, wherein The insulating shell (1) comprises: The base body (11) has three mounting positions arranged in a triangle shape inside; The installation position comprises a wire loading groove (12), a limiting protrusion (13) and a clamping groove (14); the wire loading groove (12) is connected to the clamping groove (14); the guide plate is arranged in the clamping groove (14); the clamping portion (7) abuts against the limiting protrusion (13); and the limiting protrusion (13) is arranged at the connection between the wire loading groove (12) and the clamping groove (14).
5. The connector structure with guiding and increased contact reliability as described in claim 4, characterized in that, A pair of clamping plates (6) are arranged on the front side of the clamping portion (7), and the clamping plates (6) are tilted upward along the central axis of the metal conductive thin plate.
6. The connector structure with guiding and enhanced contact reliability as described in claim 5, characterized in that, An elastic support sheet (5) is arranged on the front side of the wire clamping plate (6); the elastic support sheet (5) is bent downward along the central axis of the metal conductive thin plate and abuts against the inner wall of the wire installation groove (12).
7. The connector structure with guiding and enhanced contact reliability as claimed in claim 1, wherein After the conductive terminal (2) is stamped and formed, it is rapidly quenched and cooled at a cooling rate of 20 to 300° C. / s, so that the austenite is transformed into martensite.
8. The connector structure with guiding and increased contact reliability as claimed in claim 4, wherein A sliding slope (9) is provided between the limiting protrusion (13) and the wire loading groove (12), and the clamping portion (7) is suitable for moving along the sliding slope (9).
9. The connector structure with guiding and increased contact reliability as claimed in claim 1, wherein The surface of the conductive terminal (2) is provided with a chrome-plated anti-rust layer.
10. The connector structure with guiding and increased contact reliability as described in claim 1, characterized in that, The insulating shell (1) is manufactured by carbon fiber 3D printing.