Multi-contact structure PIN

Abstract

The utility model discloses a multi-contact structure PIN needle, comprising a PIN needle, one side surface of the PIN needle is fixedly connected with a head end connecting assembly, one side surface of the PIN needle is fixedly connected with a middle connecting assembly, and one side surface of the PI N needle is fixedly connected with a tail end connecting assembly. The head-end connecting assembly, the middle connecting assembly and the tail-end connecting assembly are connected together through the matching use of the connecting grooves and the connecting convex blocks, and the jacking spring applies force to the jacking plate to push a movable block on the inner side of the middle connecting assembly forwards to the inner side of the buckle bin; the buckling block in the middle connecting assembly is movably buckled in the limiting groove of the tail end connecting assembly, neat and aligned arrangement is achieved on the whole, uniform pressure distribution between contact points can be ensured through the PI N needles arranged in order, and therefore contact resistance is reduced, the efficiency and quality of signal transmission can be improved, and the service life of the terminal connecting assembly is prolonged. And the risk of electronic component damage caused by overheating can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of PIN pins, in particular to a PIN pin with a multi-contact structure. Background Technique

[0002] A PIN pin is a metal substance used to complete the conductive transmission of electrical signals in a connector. It can also be regarded as the pin used for conducting electricity or transmitting electrical signals in various electronic components, such as the pins of SMT components, plug-in resistors, capacitors, switches, etc. The material of the PIN pin is mainly "tungsten carbide" raw material, that is, cemented carbide. This material has high hardness, strength, wear resistance and corrosion resistance, and is known as the "industrial tooth". As a key component for the normal use of the connector, its perfect processing technology and strict quality control are crucial for ensuring the stable transmission, good contact and proper insertion of the electronic connector. During the use of the PIN pin, in order to facilitate its unified management and adjustment, several required PIN pins are often arranged in a row for installation.

[0003] However, during the production process of the connector, each PIN pin will have a certain manufacturing tolerance, which may lead to slight differences in dimensions such as length and diameter of the PIN pin. These slight dimensional differences may cause the PIN pins not to be neatly arranged during assembly, or the number of PIN pins used cannot be accurately controlled. When the number of PIN pins cannot be accurately controlled, it may lead to mismatching of the contact points between the connector and the socket, thereby reducing the connection stability. The uneven arrangement of the PIN pins may cause uneven pressure distribution between the contact points, resulting in some contact points bearing excessive pressure while other contact points may have poor contact. This will increase the contact resistance, reduce the efficiency and quality of signal transmission, and may even cause overheating and damage to electronic components. Content of the Utility Model

[0004] The purpose of the utility model is to provide a PIN pin with a multi-contact structure to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A PIN pin with a multi-contact structure includes PIN pins. A first-end connection component is fixedly connected to one side surface of the PIN pin. A middle connection component is fixedly connected to one side surface of the PIN pin. A terminal connection component is fixedly connected to one side surface of the PIN pin. There are three PIN pins, and the first-end connection component, the middle connection component and the terminal connection component are respectively and correspondingly distributed on one side surface of the three PIN pins;

[0007] The head-end connection component includes a connection block. On one side surface of the connection block located within the head-end connection component, an adjustment chamber is provided. Inside the adjustment chamber, a top spring is arranged. One end of the top spring is fixedly connected to one side surface inside the connection block. There are three top springs arranged in a linear array at equal intervals. The other ends of the three top springs are fixedly connected to a top plate, and a buckle block is fixedly connected to one side surface of the top plate.

[0008] Further, the middle connection component includes a connection block. On one side surface of the connection block located within the middle connection component, a movable chamber is provided. Inside the movable chamber, a movable block is arranged. The movable block is movably connected inside the movable chamber. On both the upper and lower sides of the movable block, movable chutes are provided. Inside the movable chutes, movable balls are movably connected. Inside one of the movable chutes, there are three movable balls arranged in a linear array. A buckle block is fixedly connected to one side surface of the movable block.

[0009] Further, through holes are provided on one side surface of both the head-end connection component and the middle connection component. On one side surface of the head-end connection component, the middle connection component, and the tail-end connection component, limit plates are fixedly connected. A limit groove is provided between the limit plate on one side surface of the head-end connection component and the head-end connection component. The through hole on one side surface of the head-end connection component is in mutual communication with the adjustment chamber. The limit groove on one side surface of the head-end connection component is in mutual communication with the through hole on one side surface of the head-end connection component.

[0010] Further, a limit groove is provided between the limit plate on one side surface of the middle connection component and the middle connection component. The through hole on one side surface of the middle connection component is in mutual communication with the movable chamber. The limit groove on one side surface of the middle connection component is in mutual communication with the through hole on one side surface of the middle connection component.

[0011] Further, the buckle block on one side surface of the top plate passes through the through hole and the limit groove on one side surface of the head-end connection component and extends to the outside of the head-end connection component. The buckle block on one side surface of the movable block passes through the through hole and the limit groove on one side surface of the head-end connection component and extends to the outside of the middle connection component.

[0012] Further, a buckle chamber is provided on one side surface of the tail-end connection component. A limit plate is fixedly connected to one side surface of the tail-end connection component. A limit groove is provided between the limit plate on one side surface of the tail-end connection component and the tail-end connection component.

[0013] Further, a connection groove is formed on one side surface of the head-end connection component, and a connection protrusion is fixedly connected to one side surface of the middle connection component. The connection groove on one side surface of the head-end connection component is adapted to the connection protrusion on one side surface of the middle connection component. A connection groove is formed on one side surface of the middle connection component, and a connection protrusion is fixedly connected to one side surface of the tail-end connection component. The connection groove on one side surface of the middle connection component is adapted to the connection protrusion on one side surface of the tail-end connection component.

[0014] Further, the PIN needle includes a needle tube, a needle head is movably connected inside the needle tube, a copper bead is arranged at the lower end of the needle head, the copper bead is movably connected inside the needle tube, a elastic spring is arranged at the lower end of the copper bead, the elastic spring is movably connected inside the needle tube, a rear plug is fixedly connected to one side surface of the needle tube, and the rear plug is snap-fastened to the bottom end of the needle tube.

[0015] Compared with the prior art, the utility model provides a multi-contact structure PIN needle, which has the following

[0016] Beneficial effects:

[0017] 1. By using the cooperation of the connection groove and the connection protrusion, the head-end connection component, the middle connection component and the tail-end connection component are connected together. The top spring applies a force to the top plate to push the movable block inside the middle connection component forward into the inside of the buckle bin. The buckle block inside the middle connection component is movably buckled inside the limit groove of the tail-end connection component. The overall realization is an orderly and aligned arrangement. The neatly arranged PIN needles can ensure uniform pressure distribution between the contact points, thereby reducing the contact resistance. It can not only improve the efficiency and quality of signal transmission, but also reduce the risk of damage to electronic components caused by overheating. In key applications such as power transmission and control systems, it helps to ensure the safe operation of equipment and personnel safety;

[0018] 2. According to specific requirements, the overall combination is changed. According to specific requirements, a combination of one head-end connection component, one tail-end connection component and several middle connection components is formed, so that the required precise correspondence can be achieved. It can ensure that each PIN needle can be correctly matched with the corresponding socket or connector, thereby greatly improving the connection stability, helping to reduce problems such as signal interruption, data loss or connection disconnection caused by poor contact, ensuring the normal operation of the equipment. At the same time, accurately determining the number of PIN needles used can simplify the installation process and reduce unnecessary troubles and errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structure schematic diagram of the front view perspective of the utility model;

[0020] Figure 2 This is a schematic three-dimensional structure view of the rear view angle of the present utility model;

[0021] Figure 3 This is a schematic three-dimensional internal structure view of the rear view angle of the present utility model;

[0022] Figure 4 This is an exploded schematic three-dimensional structure view of some components of the present utility model;

[0023] Figure 5 This is a schematic sectional view of the three-dimensional structure of the rear view angle of the present utility model;

[0024] Figure 6 This is a schematic three-dimensional structure view of the top view angle of the present utility model.

[0025] In the figure: 1. PIN needle; 2. First-end connection component; 3. Middle connection component; 4. End connection component; 5. Connection block; 6. Adjustment bin; 7. Top spring; 8. Top plate; 9. Snap block; 10. Limiting plate; 11. Limiting groove; 12. Activity bin; 13. Activity block; 14. Activity chute; 15. Activity ball; 16. Snap bin; 17. Needle tube; 18. Needle head; 19. Copper bead; 20. Elastic spring; 21. Rear plug; 22. Connection groove; 23. Connection convex block; 24. Through hole. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] Embodiment 1

[0029] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, the present utility model provides a technical solution: a multi-contact structure PIN pin, including PIN pin 1, a first-end connection component 2 is fixedly connected to one side surface of PIN pin 1, a middle connection component 3 is fixedly connected to one side surface of PIN pin 1, a terminal connection component 4 is fixedly connected to one side surface of PIN pin 1, there are three PIN pins 1, and the first-end connection component 2, the middle connection component 3 and the terminal connection component 4 are respectively and correspondingly distributed on one side surfaces of the three PIN pins 1;

[0030] The first-end connection component 2 includes a connection block 5, an adjustment chamber 6 is opened on one side surface of the connection block 5 located inside the first-end connection component 2, a top spring 7 is arranged inside the adjustment chamber 6, one end of the top spring 7 is fixedly connected to one side surface inside the connection block 5, there are three top springs 7 and they are equally spaced in a linear array, the other ends of the three top springs 7 are fixedly connected to a top plate 8, a snap block 9 is fixedly connected to one side surface of the top plate 8, and the three top springs 7 have a top force on the top plate 8 by using their own elastic potential energy, so that the top plate 8 always closely adheres to one side surface of the connection block 5 when there is no obstacle.

[0031] The middle connection component 3 includes a connection block 5, a movable chamber 12 is opened on one side surface of the connection block 5 located inside the middle connection component 3, a movable block 13 is arranged inside the movable chamber 12, the movable block 13 is movably connected inside the movable chamber 12, movable chutes 14 are opened on both the upper and lower sides of the movable block 13, movable balls 15 are movably connected inside the movable chutes 14, there are three movable balls 15 inside one movable chute 14, the three movable balls 15 are distributed in a linear array, a snap block 9 is fixedly connected to one side surface of the movable block 13, there are three movable balls 15 arranged above and below the movable block 13, and the movable balls 15 are mutually attached to the inside of the movable chamber 12, which facilitates the movement of the movable block 13 inside the movable chamber 12.

[0032] Through holes 24 are opened on one side surfaces of both the first-end connection component 2 and the middle connection component 3, limit plates 10 are fixedly connected to one side surfaces of the first-end connection component 2, the middle connection component 3 and the terminal connection component 4, a limit groove 11 is opened between the limit plate 10 located on one side surface of the first-end connection component 2 and the first-end connection component 2, the through hole 24 located on one side surface of the first-end connection component 2 is mutually communicated with the adjustment chamber 6, and the limit groove 11 located on one side surface of the first-end connection component 2 is mutually communicated with the through hole 24 located on one side surface of the first-end connection component 2. The mutually communicated area facilitates the movement and snap limit of the snap block 9 on one side of the top plate 8.

[0033] A limiting groove 11 is formed between a limiting plate 10 on one side surface of the middle connecting component 3 and the middle connecting component 3. A through hole 24 on one side surface of the middle connecting component 3 is in mutual communication with the movable bin 12. The limiting groove 11 on one side surface of the middle connecting component 3 is in mutual communication with the through hole 24 on one side surface of the middle connecting component 3. The mutually communicating area facilitates the movement and snap-limiting of the snap block 9 on one side of the movable block 13.

[0034] The snap block 9 on one side surface of the top plate 8 passes through the through hole 24 and the limiting groove 11 on one side surface of the first-end connecting component 2 and extends to the outside of the first-end connecting component 2. The snap block 9 on one side surface of the movable block 13 passes through the through hole 24 and the limiting groove 11 on one side surface of the first-end connecting component 2 and extends to the outside of the middle connecting component 3.

[0035] A snap bin 16 is formed on one side surface of the end connecting component 4. A limiting plate 10 is fixedly connected to one side surface of the end connecting component 4. A limiting groove 11 is formed between the limiting plate 10 on one side surface of the end connecting component 4 and the end connecting component 4. The snap bin 16 is adapted to one end of the movable block 13.

[0036] Embodiment 2

[0037] Based on the above Embodiment 1, referring to Figure 1 、 Figure 5 and Figure 6 , a connecting groove 22 is formed on one side surface of the first-end connecting component 2. A connecting convex block 23 is fixedly connected to one side surface of the middle connecting component 3. The connecting groove 22 on one side surface of the first-end connecting component 2 is adapted to the connecting convex block 23 on one side surface of the middle connecting component 3. A connecting groove 22 is formed on one side surface of the middle connecting component 3. A connecting convex block 23 is fixedly connected to one side surface of the end connecting component 4. The connecting groove 22 on one side surface of the middle connecting component 3 is adapted to the connecting convex block 23 on one side surface of the end connecting component 4. By the cooperative use of the connecting groove 22 on one side surface of the first-end connecting component 2 and the connecting convex block 23 on one side surface of the middle connecting component 3, the first-end connecting component 2 and the middle connecting component 3 can be connected together. By the cooperative use of the connecting groove 22 on one side surface of the middle connecting component 3 and the connecting convex block 23 on one side surface of the end connecting component 4, the middle connecting component 3 and the end connecting component 4 can be connected together. Similarly, as a whole, according to specific requirements, the use of the middle connecting component 3 can be increased, and a combination of one first-end connecting component 2, one end connecting component 4 and several middle connecting components 3 can be formed for use together according to requirements.

[0038] The PIN needle 1 includes a needle tube 17, and a needle tip 18 is movably connected inside the needle tube 17. There is an inclined surface on one side of the needle tip 18. The design of the inclined surface ensures that the PIN needle 1 can be in full contact with the needle tube 17 during operation, thus ensuring a low and stable contact impedance, which can ensure the stable conduction of electronic products. There is a copper bead 19 at the lower end of the needle tip 18, and the copper bead 19 is movably connected inside the needle tube 17. The design of the copper bead 19 helps to optimize the electrical performance of the PIN needle 1. Due to the stability of the contact point, the impedance of the PIN needle 1 is reduced, thereby improving the current transmission efficiency. There is a spring 20 at the lower end of the copper bead 19, and the spring 20 is movably connected inside the needle tube 17. The spring 20 provides the necessary contact force, enabling the PIN needle 1 to stably contact the external device. This contact force ensures that the PIN needle 1 can still maintain a good contact state when subjected to external disturbances such as vibration and shock, preventing signal interruption or distortion caused by poor contact. A rear plug 21 is fixedly connected to one side surface of the needle tube 17, and the rear plug 21 is snap-fixed at the bottom end of the needle tube 17. The design of the rear plug 21 can simplify the installation process of the PIN needle 1, making the installation more convenient and fast.

[0039] Working principle: Please refer to Figures 1-6As shown, before the utility model is used, according to requirements, a first-end connection component 2, a terminal connection component 4 and several middle connection components 3 are selected for combination. By the cooperation between the connection groove 22 on one side surface of the first-end connection component 2 and the connection protrusion 23 on one side surface of the middle connection component 3, the first-end connection component 2 and the middle connection component 3 can be connected together. By the cooperation between the connection groove 22 on one side surface of the middle connection component 3 and the connection protrusion 23 on one side surface of the terminal connection component 4, the middle connection component 3 and the terminal connection component 4 can be connected together. Similarly, by the cooperation between the connection groove 22 on one side surface of the previous middle connection component 3 and the connection protrusion 23 on one side surface of the next middle connection component 3, the two middle connection components 3 can be stably connected together. By using the cooperation between the connection groove 22 and the connection protrusion 23, the first-end connection component 2, the middle connection component 3 and the terminal connection component 4 are connected together. The overhead spring 7 at the front end of the first-end connection component 2 applies a force to the overhead plate 8, and the overhead plate 8 extends outward into the movable bin 12, pushing the movable block 13 inside the middle connection component 3 forward to the inside of the buckle bin 16. The movable ball 15 fits with the inside of the movable bin 12, facilitating the movement of the movable block 13 inside the movable bin 12 and reducing the resistance. The buckle block 9 inside the middle connection component 3 is movably buckled inside the limit groove 11 of the terminal connection component 4, and the overall realization is an orderly and aligned arrangement. The neatly arranged PIN pins 1 can ensure uniform pressure distribution between the contact points, thereby reducing the contact resistance. This can not only improve the efficiency and quality of signal transmission, but also reduce the risk of damage to electronic components caused by overheating. In key applications such as power transmission and control systems, it helps to ensure the safe operation of equipment and personnel safety, improving the practicality.

Claims

1. A multi-contact structure PIN pin, comprising a PIN pin (1), characterized in that: One side surface of the PIN pin (1) is fixedly connected with a head-end connection component (2), one side surface of the PIN pin (1) is fixedly connected with a middle connection component (3), one side surface of the PIN pin (1) is fixedly connected with a tail-end connection component (4), there are three PIN pins (1), and the head-end connection component (2), the middle connection component (3) and the tail-end connection component (4) are respectively and correspondingly distributed on one side surface of the three PIN pins (1); The head-end connection component (2) includes a connection block (5). An adjustment chamber (6) is formed on one side surface of the connection block (5) located inside the head-end connection component (2). A top spring (7) is arranged inside the adjustment chamber (6). One end of the top spring (7) is fixedly connected to one side surface inside the connection block (5). There are three top springs (7) which are equally spaced in a linear array. The other ends of the three top springs (7) are fixedly connected to a top plate (8). A snap block (9) is fixedly connected to one side surface of the top plate (8).

2. The multi-contact structure PIN pin according to claim 1, characterized in that: The middle connection component (3) includes a connection block (5). An activity chamber (12) is formed on one side surface of the connection block (5) located inside the middle connection component (3). An activity block (13) is arranged inside the activity chamber (12). The activity block (13) is movably connected inside the activity chamber (12). Activity chutes (14) are formed on both the upper and lower sides of the activity block (13). Activity balls (15) are movably connected inside the activity chutes (14). Three activity balls (15) are arranged inside one activity chute (14), and the three activity balls (15) are distributed in a linear array. A snap block (9) is fixedly connected to one side surface of the activity block (13).

3. The multi-contact structure PIN pin according to claim 2, wherein: Through holes (24) are formed on one side surfaces of both the head-end connection component (2) and the middle connection component (3). Limiting plates (10) are fixedly connected to one side surfaces of the head-end connection component (2), the middle connection component (3) and the tail-end connection component (4). A limiting groove (11) is formed between the limiting plate (10) on one side surface of the head-end connection component (2) and the head-end connection component (2). The through hole (24) on one side surface of the head-end connection component (2) is in mutual communication with the adjustment chamber (6). The limiting groove (11) on one side surface of the head-end connection component (2) is in mutual communication with the through hole (24) on one side surface of the head-end connection component (2).

4. A multi-contact structure PIN pin according to claim 3, characterized in that: A limiting groove (11) is formed between the limiting plate (10) on one side surface of the middle connection component (3) and the middle connection component (3). The through hole (24) on one side surface of the middle connection component (3) is in mutual communication with the activity chamber (12). The limiting groove (11) on one side surface of the middle connection component (3) is in mutual communication with the through hole (24) on one side surface of the middle connection component (3).

5. The multi-contact structure PIN pin according to claim 4, characterized in that: The snap block (9) located on one side surface of the top plate (8) passes through the through hole (24) on one side surface of the head end connection assembly (2) and the limiting groove (11) and extends to the outside of the head end connection assembly (2). The snap block (9) located on one side surface of the movable block (13) passes through the through hole (24) on one side surface of the head end connection assembly (2) and the limiting groove (11) and extends to the outside of the middle connection assembly (3).

6. A multi-contact structure PIN pin according to claim 5, characterized in that: A snap bin (16) is provided on one side surface of the tail end connection assembly (4). A limiting plate (10) is fixedly connected to one side surface of the tail end connection assembly (4). A limiting groove (11) is provided between the limiting plate (10) located on one side surface of the tail end connection assembly (4) and the tail end connection assembly (4).

7. A multi-contact structure PIN pin according to claim 6, characterized in that: A connection groove (22) is provided on one side surface of the head end connection assembly (2). A connection lug (23) is fixedly connected to one side surface of the middle connection assembly (3). The connection groove (22) located on one side surface of the head end connection assembly (2) and the connection lug (23) located on one side surface of the middle connection assembly (3) are mutually adapted. A connection groove (22) is provided on one side surface of the middle connection assembly (3). A connection lug (23) is fixedly connected to one side surface of the tail end connection assembly (4). The connection groove (22) located on one side surface of the middle connection assembly (3) and the connection lug (23) located on one side surface of the tail end connection assembly (4) are mutually adapted.

8. A multi-contact structure PIN pin according to claim 1, characterized in that: The PIN needle (1) includes a needle tube (17). A needle head (18) is movably connected inside the needle tube (17). A copper bead (19) is provided at the lower end of the needle head (18). The copper bead (19) is movably connected inside the needle tube (17). A compression spring (20) is provided at the lower end of the copper bead (19). The compression spring (20) is movably connected inside the needle tube (17). A rear plug (21) is fixedly connected to one side surface of the needle tube (17). The rear plug (21) is snap-fixed at the bottom end of the needle tube (17).

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