Double-contact connector structure

Abstract

The utility model discloses a double-contact connector structure, which comprises an upper connector and a lower connector, the upper connector comprises an upper terminal provided with an upper base, one end of the upper terminal is bent to form an elastic connecting block, and the elastic connecting block is provided with a first limiting groove and a second limiting groove; the lower connector comprises a lower terminal provided with a lower base, one end of the lower terminal is bent to form a first clamping end and a second clamping end which are connected, a limiting cavity is formed between the first clamping end and the second clamping end, the first clamping end is bent upwards to form a first connecting protruding part, the second clamping end is bent upwards to form a second connecting protruding part, and the first connecting protruding part is connected with the second connecting protruding part. When the elastic connecting block is contained in the limiting cavity, the first connecting protruding part abuts against the first limiting groove, and the second connecting protruding part abuts against the second limiting groove. Therefore, the connection tightness between the upper terminal and the lower terminal can be ensured, and two contact points are provided, so that the risk of poor contact between the upper terminal and the lower terminal can be reduced, and the contact performance is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a double-contact connector structure. Background Art

[0002] A connector is a device that connects two active devices and has the function of transmitting current or signals. Generally, connectors are divided into upper connectors and lower connectors. The two connectors are plugged together to form conduction. In traditional connector design, there is only one terminal contact point, that is, only one contact point is formed between the upper connector and the lower connector. Once the terminal is slightly deformed, it is easy to cause poor contact of the terminal, which in turn causes abnormal function of the corresponding product.

[0003] In view of the above, a dual-contact connector structure is proposed to improve the contact performance between the upper and lower connectors. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a double-contact connector structure capable of improving contact performance, thereby making communication signals and current transmission better.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A double-contact connector structure comprises: an upper connector and a lower connector, the upper connector comprising an upper terminal and an upper base, the upper terminal being arranged on the upper base, one end of the upper terminal being bent to form an elastic connecting block, the elastic connecting block being provided with a first limiting groove and a second limiting groove; the lower connector comprising a lower terminal and a lower base, the lower terminal being arranged on the lower base, one end of the lower terminal being bent to form a first clamping end and a second clamping end connected to each other, a limiting cavity being formed between the first clamping end and the second clamping end, a first connecting protrusion being bent to form on the first clamping end, a second connecting protrusion being bent to form on the second clamping end, and when the elastic connecting block is accommodated in the limiting cavity, the first connecting protrusion abuts against the first limiting groove, and the second connecting protrusion abuts against the second limiting groove.

[0007] In one of the embodiments, an upper terminal foot is provided on one end of the upper terminal away from the elastic connecting block.

[0008] In one embodiment, a lower terminal foot is disposed on an end of the lower terminal away from the first clamping end, and the lower terminal foot has an upper connecting surface and a lower connecting surface.

[0009] In one of the embodiments, a plurality of grooves are formed on the upper connecting surface so that the upper connecting surface has a wave-shaped structure.

[0010] In one of the embodiments, a positioning column is provided on the lower connecting surface.

[0011] In one of the embodiments, a clamping block is provided on one side surface of the upper base, and a limiting protrusion is provided on one side surface of the lower base, a clamping groove is provided on one side surface of the clamping block facing the limiting protrusion, and one end of the clamping block is connected to the upper base, and the other end of the clamping block extends toward the direction of the lower base so that the limiting protrusion is accommodated in the clamping groove.

[0012] In one of the embodiments, a guiding inclined surface is provided on a side of the limiting protrusion facing the upper base.

[0013] In one of the embodiments, a grounding plate is provided on the lower base.

[0014] In one embodiment, the upper terminals are provided in two groups, and the two groups of upper terminals are symmetrically arranged on the upper base.

[0015] In one embodiment, the lower terminals are provided in two groups, and the two groups of the lower terminals are symmetrically arranged on the lower base.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] 1. The double-contact connector structure of the utility model is provided with an elastic connection block on the upper terminal, and a first clamping end and a second clamping end forming a limiting cavity are provided on the lower terminal, and the elastic connection block is accommodated in the limiting cavity, so that the upper terminal and the lower terminal are connected and conducted; in addition, a first limiting groove and a second limiting groove are provided on the elastic connection block, and a first connecting protrusion is provided on the first clamping end, and a second connecting protrusion is provided on the second clamping end, and the first connecting protrusion is abutted against the first limiting groove, and the second connecting protrusion is abutted against the second limiting groove, so as to ensure the tightness of the connection between the upper terminal and the lower terminal, and at the same time, there are two contact points, so compared with the existing single-contact point connector, it can reduce the risk of poor contact between the upper terminal and the lower terminal, thereby improving the contact performance, and thus making the communication signal and current transmission better.

[0018] 2. The double-contact connector structure of the utility model is provided with a groove on the upper connection surface of the lower terminal pin, which can achieve a tinning effect when welding the lower terminal pin, thereby improving the welding effect.

[0019] 3. The double-contact connector structure of the utility model is advantageous for pre-positioning before welding by setting a positioning column on the lower terminal pin, so that the welding position between the upper connector and the PCB board is more accurately aligned, avoiding poor contact caused by deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0021] Figure 1 This is a structural schematic diagram of a double-contact connector structure with a PCB board in one embodiment of the utility model;

[0022] Figure 2 This is a schematic structural diagram of a double-contact connector structure in one embodiment of the utility model;

[0023] Figure 3 for Figure 2 A schematic diagram of the assembly structure of the upper terminal and the lower terminal of the double-contact connector structure;

[0024] Figure 4 for Figure 2 A schematic structural diagram of an upper connector of a double-contact connector structure;

[0025] Figure 5 for Figure 2 A schematic structural diagram of a lower connector of a double-contact connector structure;

[0026] Figure 6 for Figure 2 A schematic diagram of the structure of the upper terminal of the double-contact connector structure;

[0027] Figure 7 for Figure 2 Schematic diagram of the structure of the lower terminal of the double-contact connector structure. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0029] Please combine Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, a double-contact connector structure 10 includes: an upper connector 100 and a lower connector 200, the upper connector 100 includes an upper terminal 110 and an upper base 120, the upper terminal 110 is arranged on the upper base 120, one end of the upper terminal 110 is bent to form an elastic connection block 111, and the elastic connection block 111 is provided with a first limiting groove 111a and a second limiting groove 111b; the lower connector 200 includes a lower terminal 210 and a lower base 220, the lower terminal 210 is arranged on the lower base 220, one end of the lower terminal 210 is bent to form an elastic connection block 111, and the elastic connection block 111 is provided with a first limiting groove 111a and a second limiting groove 111b. The ends are bent to form a first clamping end 211 and a second clamping end 212 connected to each other, and a limiting cavity 213 is formed between the first clamping end 211 and the second clamping end 212. The first clamping end 211 is bent to form a first connecting protrusion 211a, and the second clamping end 212 is bent to form a second connecting protrusion 212a. When the elastic connecting block 111 is accommodated in the limiting cavity 213, the first connecting protrusion 211a is abutted against the first limiting groove 111a, and the second connecting protrusion 211b is abutted against the second limiting groove 111b.

[0030] It should be noted that when the upper connector 100 and the lower connector 200 are plugged together, the elastic connecting block 111 of the upper terminal 110 is inserted into the limiting cavity 213 on the lower terminal 210. At this time, the first connecting protrusion 211a on the first clamping end 211 abuts against the first limiting groove 111a, and the second connecting protrusion 212a on the second clamping end 212 abuts against the second limiting groove 111b, thereby ensuring the tightness of the connection between the upper terminal 110 and the lower terminal 210. At the same time, it has two contact points, so compared with the existing connector with a single contact point, it can reduce the risk of poor contact between the upper terminal and the lower terminal, thereby improving the contact performance.

[0031] Specifically, the elastic connection block 111 includes a first abutting portion and a second abutting portion, one end of the second abutting portion is connected to the first abutting portion, and the second abutting portion is bent relative to the first abutting portion to form a V-shaped structure. Then, when the elastic connection block 111 is extruded and assembled, the first abutting portion and the second abutting portion will be close to each other, reducing the size of the elastic connection block 111, so that the elastic connection block 111 can be quickly inserted into the limiting cavity 213 formed by the first clamping end 211 and the second clamping end 212; at the same time, in order to further improve the In order to ensure the connection stability between the terminal 110 and the lower terminal 210 and avoid the problem that the lower terminal 210 cannot clamp the upper terminal 110 and rebounds and separates, a first limiting groove 111a and a second limiting groove 111b are respectively provided on the elastic connection block 111. Specifically, the first limiting groove 111a is formed on the first abutting portion, and the second limiting groove 111b is formed on the second abutting portion. At the same time, a first connecting protrusion 211a and a second connecting protrusion 211b are formed on the lower terminal 210. The elastic connection block 111 is inserted into the limiting cavity 213. After that, the first connection protrusion 211a is abutted against the first limiting groove 111a, and the second connection protrusion 211b is abutted against the second limiting groove 111b, so that it can not only play a limiting role, but also prevent the first clamping end 211 and the second clamping end 212 from being unable to clamp the elastic connection block 111, thereby preventing the elastic connection block 111 from rebounding and detaching, so as to ensure the stability of the connection, and also improve the conduction performance of signals and currents; further, the first limiting groove 111a and the second limiting groove 111b are both V-shaped structures, and the first limiting groove 111a and the second limiting groove 111b are V-shaped structures. The outer shape structure of a connecting protrusion 211a matches the first limiting groove 111a, and the outer shape structure of the second connecting protrusion 211b matches the second limiting groove 111b. The first limiting groove 111a and the second limiting groove 111b are arranged to be in a V-shaped structure, so that the first limiting groove 111a and the second limiting groove 111b form guiding inclined surfaces on both sides, so that the upper terminal 110 can be quickly inserted into the lower terminal 210, or the upper terminal 110 can be quickly pulled out from the lower terminal 210, thereby improving the convenience of assembly connection.Furthermore, it should be noted that the first clamping end 211 and the second clamping end 212 surround a limiting cavity 213, and at the same time, the first connecting protrusion 211a and the second connecting protrusion 211b are arranged relatively to form an open end of the limiting cavity 213, and the size of the limiting cavity 213 is larger than the size of the open end, and at the same time, the size of the open end needs to be smaller than the distance between the first limiting groove 111a and the second limiting groove 111b on the elastic connecting block 111, that is, when the elastic connecting block 111 is inserted into the limiting cavity 213 through the open end, the elastic connecting block 111 is squeezed and reduced in size, and at the same time, the open end Due to the squeezing, the first clamping end 211 and the second clamping end 212 are separated from each other, that is, the open end becomes larger, so that the elastic connecting block 111 can be squeezed into the limiting cavity 213 of the lower terminal 210. After the connection is completed, the elastic connecting block 111 rebounds outward, and at the same time, the open end also rebounds in the direction of the elastic connecting block 111 and shrinks in size. In this way, the two contact points between the upper terminal 110 and the lower terminal 210 can form a closer contact, so that the communication signal and current transmission are better. In addition, it can also prevent metal fatigue, improve durability, and increase the number of plug-in times.

[0032] See also Figure 4 and Figure 6 As shown, an upper terminal pin 112 is provided on one end of the upper terminal 110 away from the elastic connection block 111. The upper terminal pin 112 is connected to the PCB board by welding, so that the upper connector 100 is connected to the PCB board.

[0033] See also Figure 5 and Figure 7 As shown, a lower terminal foot 214 is provided on one end of the lower terminal 210 away from the first clamping end 211, and the lower terminal foot 214 has an upper connection surface 214a and a lower connection surface 214b. The lower terminal foot 214 is connected to the PCB board 300 by welding, so that the lower connector 200 and the PCB board are connected.

[0034] Furthermore, a plurality of grooves are provided on the upper connection surface 214a so that the upper connection surface 214a has a wavy structure. The terminal pin design of a conventional connector is relatively simple, and the upper connection surface 214a is usually a planar structure, which is not easy to tin, that is, the tin climbing ability is poor, which easily leads to poor tin leakage, abnormal signal transmission, etc. Therefore, by forming a plurality of grooves on the upper connection surface 214a so that the upper connection surface 214a has a wavy structure, when soldering, the solder paste can more easily climb onto the upper connection surface 214a of the upper and lower terminal pins 214, so that the soldering effect is better, that is, the tin climbing ability is stronger, and the signal and current conduction are better.

[0035] Further, please refer again to Figure 7As shown, a positioning column 214c is provided on the lower connection surface 214b. When performing a soldering operation, the positioning column 214c is inserted into the corresponding PCB board to form a pre-positioning operation of the soldering, so that the connector will not move during the soldering process, and the soldering position of the PCB board is more accurately aligned to avoid poor contact caused by deviation.

[0036] See also Figure 2 , Figure 4 and Figure 5 As shown, a clamping block 121 is provided on one side surface of the upper base 120, and a limiting protrusion 221 is provided on one side surface of the lower base 220, a clamping groove is opened on one side surface of the clamping block 121 facing the limiting protrusion 221, and one end of the clamping block 121 is connected to the upper base 120, and the other end of the clamping block 121 extends toward the direction of the lower base 220 so that the limiting protrusion 221 is accommodated in the clamping groove.

[0037] It should be noted that in order to further improve the connection stability between the upper terminal 110 and the lower terminal 210, thereby ensuring a tighter connection between the upper terminal 110 and the lower terminal 210 so that the communication signal and the current transmission signal are better, a clamping block 121 is provided on the upper base 120, and a limiting protrusion 221 is provided on the lower base 220. After the upper connector 100 and the lower connector 200 are plugged in, they can be connected and fixed by means of the clamping block 121 with a clamping groove and the limiting protrusion 221.

[0038] Furthermore, a guiding slope is provided on one side of the position-limiting protrusion 221 facing the upper base 120. Similarly, a guiding slope is also provided on the card slot on the card-connecting block 121, so that the position-limiting protrusion 221 can be quickly squeezed into the card slot.

[0039] See also Figure 5 As shown, in one embodiment, a grounding plate 122 is disposed on the lower base 120. The plane of the lower end of the grounding plate 122 is the same plane as the lower plane of the lower terminal pin 214. By adding the grounding plate 122, static electricity can be guided to ground, thereby avoiding static electricity injuries.

[0040] In one embodiment, two groups of upper terminals 110 are provided, and the two groups of upper terminals 110 are symmetrically arranged on the upper base 120. There are multiple upper terminals 110 in the same group, and each upper terminal 110 is arranged in an array on the upper base 120 with the same spacing distance. The two groups of upper terminals are symmetrically arranged, which can further enhance the transmission speed of communication signals and current. Correspondingly, in this embodiment, two groups of lower terminals 210 are provided, and the two groups of lower terminals 210 are symmetrically arranged on the lower base; the lower terminals 210 match the upper terminals, so there are also multiple lower terminals 210 in the same group, and the number of lower terminals 210 is the same as the number of upper terminals 110, and each lower terminal 210 is arranged in an array on the lower base 220 with the same spacing distance, and the two groups of lower terminals 210 are symmetrically arranged, which can further enhance the transmission speed of communication signals and current.

[0041] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A double-contact connector structure, characterized in that: include: An upper connector, the upper connector comprising an upper terminal and an upper base, the upper terminal being arranged on the upper base, one end of the upper terminal being bent to form an elastic connection block, the elastic connection block being provided with a first limiting groove and a second limiting groove; and A lower connector, the lower connector includes a lower terminal and a lower base, the lower terminal is arranged on the lower base, one end of the lower terminal is bent to form a first clamping end and a second clamping end connected to each other, a limiting cavity is formed between the first clamping end and the second clamping end, the first clamping end is bent to form a first connecting protrusion, the second clamping end is bent to form a second connecting protrusion, when the elastic connecting block is accommodated in the limiting cavity, the first connecting protrusion is abutted against the first limiting groove, and the second connecting protrusion is abutted against the second limiting groove.

2. The dual-contact connector structure according to claim 1, characterized in that: An upper terminal foot is arranged on one end of the upper terminal away from the elastic connecting block.

3. The dual-contact connector structure according to claim 1, characterized in that: A lower terminal foot is disposed on one end of the lower terminal away from the first clamping end, and the lower terminal foot has an upper connecting surface and a lower connecting surface.

4. The double-contact connector structure according to claim 3, characterized in that: A plurality of grooves are formed on the upper connecting surface so that the upper connecting surface has a wave-shaped structure.

5. The dual-contact connector structure according to claim 3, characterized in that: A positioning column is arranged on the lower connecting surface.

6. The dual-contact connector structure according to claim 1, characterized in that: A clamping block is provided on one side surface of the upper base, and a limiting protrusion is provided on one side surface of the lower base, a clamping groove is provided on one side surface of the clamping block facing the limiting protrusion, and one end of the clamping block is connected to the upper base, and the other end of the clamping block extends toward the direction of the lower base so that the limiting protrusion is accommodated in the clamping groove.

7. The dual-contact connector structure according to claim 6, characterized in that: A guiding inclined surface is provided on one side of the limiting protrusion facing the upper base.

8. The double-contact connector structure according to any one of claims 1 to 7, characterized in that: A grounding sheet is arranged on the lower base.

9. The double-contact connector structure according to any one of claims 1 to 7, characterized in that: The upper terminals are provided in two groups, and the two groups of the upper terminals are symmetrically arranged on the upper base.

10. The dual-contact connector structure according to claim 9, characterized in that: The lower terminals are provided in two groups, and the two groups of the lower terminals are symmetrically arranged on the lower base.

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