Connecting clamp structure

Abstract

The application discloses a connecting and clamping structure, which comprises an electric plugboard, a clamping section and a reserved section, and a middle plate, wherein the middle plate is provided with an open slot-shaped socket, at least one elastic contact arm in a cantilever structure is arranged on each of the two opposite side walls of the socket, the elastic contact arms on the two opposite side walls of the socket respectively extend towards each other, a contact point is formed on each of the elastic contact arms, and the vertical distance between the contact points on the elastic contact arms on the two opposite side walls of the socket is smaller than the thickness of the electric plugboard. The middle plate is directly made by blanking and stamping on a flat plate material, the product has a small volume, a plurality of contact points can be easily contacted, the self-adaptability is high, poor contact is avoided, the contact of the connector is more stable and safe, and the application is more extensive. The forming process of the application is simple, the material utilization rate is high, and the purpose of reducing the cost is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to an electrical connector or terminal block connector, in particular to a connecting and clamping structure. BACKGROUND

[0002] Both the electrical connector and the terminal block need to use the connector structure to achieve electrical connection or disconnection. The traditional connector clip 200 is made by continuous bending forming process, and the two elastic arms 210 are clamped on the conductive plate 100 by continuous bending. The connector of this structure has the following disadvantages:

[0003] 1. The contact point 220 is limited by the structure and space of the bending forming product, resulting in less contact point;

[0004] 2. The traditional connector clip 200 is formed by product bending process, and the forming process is complex, which increases the cost;

[0005] 3. The product flat material area of the connector clip 200 is large, and the cost is high. SUMMARY

[0006] In order to overcome the above-mentioned defects, the present application provides a connecting and clamping structure, which has simple forming process, high material utilization rate, small product volume, can realize multi-point contact, avoid poor contact, make the connector contact more stable and safe, and has wider application.

[0007] The technical scheme adopted by the present application to solve the technical problems: a connecting and clamping structure, comprising an electrical connector, the electrical connector comprising a clamping section and a reserved section, further comprising a middle plate, the middle plate is formed with an open slot-shaped socket, at least one elastic contact arm in cantilever structure is arranged on the two opposite side walls of the socket respectively, and the elastic contact arms on the two opposite side walls of the socket respectively extend towards each other, a contact point is formed on each elastic contact arm respectively, and the vertical distance between the contact points on the elastic contact arms on the two opposite side walls of the socket is less than the thickness of the electrical connector.

[0008] As a further improvement of the present application, the contact points on the elastic contact arms are respectively formed with guide surfaces on both sides along the plug-in direction of the electrical connector, and the guide surfaces are inclined surfaces or arc surfaces with acute angles with the plug-in direction.

[0009] As a further improvement of the present application, the contact points on the elastic contact arms are located at the free end of the elastic contact arms.

[0010] As a further improvement of the present application, the elastic contact arms on the two opposite side walls of the socket are arranged one by one.

[0011] As a further improvement of the present application, the contact points on the elastic contact arms arranged one by one on the two opposite side walls of the socket are arranged in staggered manner along the depth direction of the socket.

[0012] As a further improvement of the present application, the first and second elastic contact arms are respectively formed on the two opposite side walls of the socket and extend towards the opening direction and the bottom direction of the socket.

[0013] As a further improvement of the present application, the free ends of the first and second elastic contact arms are respectively provided with third and fourth elastic contact arms which extend towards the opening direction and the bottom direction of the socket, and the contact points are located at the free end of the third and fourth elastic contact arms.

[0014] As a further improvement of the present application, the middle plate and the elastic contact arms thereon are integrally formed by punching a flat material.

[0015] As a further improvement of the present application, a guide structure with gradually decreasing thickness is formed on one side wall of the clamping section of the electrical socket.

[0016] As a further improvement of the present application, a protruding stop block is further provided on the root of the clamping section of the electrical socket, which can stop on the contact points of the elastic contact arms on the two opposite side walls of the socket.

[0017] The present application has the advantages of: the middle plate of the present application is directly punched and blanked from a flat material, the product has small volume, can easily achieve multiple contact points contact, has strong self-adaptability, avoids poor contact, makes the connector contact more stable and safe, and is more widely applied, the forming process of the present application is simple, the material utilization rate is high, thereby achieving the purpose of reducing cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural principle front view of the prior art;

[0019] Figure 2 is a structural principle top view of the prior art;

[0020] Figure 3 is a first structure of the present application;

[0021] Figure 4 is a first structure of the present application;

[0022] Figure 5 is a first structure of the present application;

[0023] Figure 6 is a second structure of the present application;

[0024] Figure 7 is a third structure of the present application. DETAILED DESCRIPTION

[0025] The embodiment is a connecting and clamping structure, comprising an electric plugboard 100, the electric plugboard 100 comprising a clamping section 110 and a reserved section 130, and a middle plate 300, the middle plate 300 being provided with an open slot-shaped socket 340, at least one elastic contact arm 310 in a cantilever structure being arranged on each of the two opposite side walls of the socket 340, and the elastic contact arms 310 on the two opposite side walls of the socket 340 extending towards each other, and a contact point 320 being formed on each of the elastic contact arms 310, and the vertical distance between the contact points 320 on the elastic contact arms 310 on the two opposite side walls of the socket 340 being less than the thickness of the electric plugboard 100.

[0026] When clamped, the clamping section 110 of the electric plugboard 100 is inserted into the socket 340 of the middle plate 300 and is tightly clamped by the contact points 320 on the elastic contact arms 310 on the two opposite side walls of the socket 340, thereby forming an electrically conductive connection, and each of the elastic contact arms 310 is flexible and can tightly clamp the clamping section 110 of the electric plugboard 100, and the elastic contact arms 310 and the clamping section 110 of the electric plugboard 100 form a spring-type plug-in mode, which is highly adaptive and has good anti-vibration effect, is suitable for various occasions, has a simple forming process, can be formed by one-time processing through sheet punching, has a flat clamping structure without bending, has high material utilization rate, and has low production cost.

[0027] The contact points 320 on the elastic contact arms 310 are respectively provided with guide surfaces on both sides along the plug-in and plug-out direction of the electric plugboard 100, and the guide surfaces are inclined surfaces or arc surfaces at an acute angle with the plug-in and plug-out direction. The inclined surfaces or arc surfaces formed on both sides of the contact points 320 can prevent the clamping section 110 of the electric plugboard 100 from being interfered when being inserted and pulled out, thereby achieving smooth plug-in and preventing damage to the elastic contact arms 310 and the electric plugboard 100 during plug-in.

[0028] The contact points 320 on the elastic contact arms 310 are located at the free end of the elastic contact arms 310. This can save materials and avoid material waste, and in addition, the contact points 320 can also be located on the side walls of the elastic contact arms 310, for example, the free end of the elastic contact arms 310 is formed to have a warping avoidance structure that is curved away from the electric plugboard 100, and the contact points 320 are formed at the warping starting point of the elastic contact arms 310. Such equivalent design solutions are easy to be thought of by those skilled in the art according to the present patent and belong to the protection scope of the present patent.

[0029] The elastic contact arms 310 on the two opposite side walls of the socket 340 are arranged one by one. When clamping the electric plugboard 100, the elastic contact arms 310 on the two opposite side walls of the socket 340 are arranged one by one, thereby forming an up-and-down corresponding clamping, balancing the clamping stress on the upper and lower sides of the electric plugboard 100, and preventing deformation caused by uneven stress on the upper and lower sides of the clamping section 110 of the electric plugboard 100.

[0030] The contact points 320 on the elastic contact arms 310 arranged on the two opposite side walls of the socket 340 are staggered along the depth direction of the socket 340. By arranging the contact points 320 on the upper and lower sides of the clamping section 110 of the electrical plugboard 100 in a staggered manner, the electrical plugboard 100 is inserted more easily and smoothly.

[0031] The first elastic contact arm 311 and the second elastic contact arm 312 are respectively formed on the two opposite side walls of the socket 340 and extend towards the opening direction of the socket 340 and the bottom direction of the socket 340. By extending the elastic contact arms 310 in different directions on the side walls of the socket 340, the number of contact points 320 can be increased, and multiple groups of elastic contact arms 310 formed by the first elastic contact arm 311 and the second elastic contact arm 312 can be formed on the side walls of the socket 340, further increasing the number of elastic contact arms 310 and the number of contact points 320 to increase the clamping stability of the electrical plugboard 100.

[0032] The free ends of the first elastic contact arm 311 and the second elastic arm respectively extend towards the opening direction of the socket 340 and the bottom direction of the socket 340 and are provided with the third elastic contact arm 313 and the fourth elastic contact arm 314, and the contact points 320 are located at the free end of the third elastic contact arm 313 and the fourth elastic contact arm 314. The third elastic contact arm 313 and the fourth elastic contact arm 314 form a secondary elastic arm, which doubles the number of contact points 320 from the primary elastic contact arm 310 structure. The third elastic contact arm 313 and the fourth elastic contact arm 314 can also extend to form a tertiary elastic arm at the free end, which further increases the number of contact points 320 by one, and can also be a quaternary or quinary, and so on. In this way, multiple contact points 320 are formed by multiple levels of branches to clamp the electrical plugboard 100, increasing the clamping stability. Furthermore, by forming the elastic contact arms 310 extending forward and backward from a starting point, a lever structure can be formed by the elastic contact arms 310 extending forward and backward, with the root as the fulcrum, the positions of the forward and backward contact points 320 are automatically adjusted to form a balance, and the electrical plugboard 100 is stably clamped.

[0033] The middle plate 300 and the elastic contact arms 310 thereon are integrally formed by punching a flat plate material. By using a flat plate material for punching and forming, the processing technology is simple, and the one-time forming does not require subsequent bending operations. Moreover, the elastic contact arms 310 of the middle plate 300 are flat structures themselves, and there is no problem of increased flattening length, which saves materials and reduces the difficulty of production and production costs.

[0034] The clamping section 110 of the electric plugboard 100 is provided with a guide structure 120 with gradually decreasing thickness on one side wall. By designing the guide structure 120 on the clamping section 110 of the electric plugboard 100, the assembly is more smooth when the electric plugboard 100 is pressed from one side of the middle plate 300.

[0035] The clamping section 110 of the electric plugboard 100 is provided with a guide structure 120 with gradually decreasing thickness on one side wall. By designing the guide structure 120 on the clamping section 110 of the electric plugboard 100, the assembly is more smooth when the electric plugboard 100 is pressed from one side of the middle plate 300.

[0035] The clamping section 110 of the electric plugboard 100 is provided with a guide structure 120 with gradually decreasing thickness on one side wall. By designing the guide structure 120 on the clamping section 110 of the electric plugboard 100, the assembly is more smooth when the electric plugboard 100 is pressed from one side of the middle plate 300.

Claims

1. A connection clamp structure comprising an electrical plugboard (100) comprising a clamping section (110) and a reservation section (130), characterized in that: The middle plate (300) is provided with an open slot-shaped socket (340), and at least one elastic contact arm (310) in cantilever structure is arranged on each of the two opposite side walls of the socket, and the elastic contact arms on the two opposite side walls of the socket respectively extend towards each other, and a contact point (320) is formed on each of the elastic contact arms, the vertical distance between the contact points on the elastic contact arms on the two opposite side walls of the socket is less than the thickness of the electrical socket, and a first elastic contact arm (311) and a second elastic contact arm (312) extending towards the opening direction of the socket and the bottom direction of the socket are respectively formed on the two opposite side walls of the socket, and a third elastic contact arm (313) and a fourth elastic contact arm (314) are respectively arranged on the free ends of the first elastic contact arm and the second elastic arm and extend towards the opening direction of the socket and the bottom direction of the socket, and the contact points are located at the free end ends of the third elastic contact arm and the fourth elastic contact arm.

2. The connection clamp structure according to claim 1, characterized in that: The contact points on the elastic contact arms are respectively provided with guide surfaces on both sides along the plug-in direction of the electrical socket, and the guide surfaces are inclined surfaces or arc surfaces with an acute angle with the plug-in direction.

3. The connection holding structure according to claim 1 or 2, characterized by: The contact points on the elastic contact arms are located at the free end ends of the elastic contact arms.

4. The connection clamp structure according to claim 1, characterized by: The elastic contact arms on the two opposite side walls of the socket are arranged one by one.

5. The connection clamp structure according to claim 4, characterized in that: The contact points on the elastic contact arms arranged one by one on the two opposite side walls of the socket are arranged in a staggered manner along the depth direction of the socket.

6. The connection clamp structure according to claim 1, characterized by: The middle plate and the elastic contact arms thereon are an integral structure punched from a flat plate material.

7. The connection clamp structure according to claim 1, characterized by: A guide structure (120) with gradually decreasing thickness is formed on one side wall of the clamping section of the electrical socket.

8. The connection clamp structure according to claim 1, characterized by: A raised stop block (140) is further arranged on the root of the clamping section of the electrical socket, and the stop block can stop on the contact points of the elastic contact arms on the two opposite side walls of the socket.

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