Point contact electrical connector

By designing a conductive outer shell and an electrical connector containing an insulated shell, pins and grounding components, the problem of the lack of grounding function of existing electrical connectors is solved, and the improvement of electrostatic automatic grounding and operation safety is achieved.

CN222868115UActive Publication Date: 2025-05-13NINGBO GAOSONG NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202421506024.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2025-05-13
Estimated Expiration
2034-06-28

AI Technical Summary

Technical Problem

The existing electrical connectors lack grounding function when welding with PCB boards, resulting in electrostatic problems, complex operation and great safety risks.

Method used

A point-contact electrical connector is designed, and its outer shell is conductive, including an insulating shell, a pin and a conductive grounding component. The pins come into contact with the electrical signal endpoint of the PCB board, the grounding component comes into electrical contact with the outer shell, and contacts with the grounding endpoint of the PCB board, realizing electrical connection and grounding functions.

Benefits of technology

Through this design, the electrical connector can be automatically grounded when static electricity is generated, avoiding static electricity accumulation, improving operational safety, and simplifying the grounding process and reducing the risk of operating errors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a point contact electric connector, which comprises a conductive outer shell and an electric connection assembly positioned in the outer shell, the electric connection assembly comprises an insulating shell, at least one pin, a conductive grounding part and a PCB (printed circuit board), and the insulating shell forms a cavity and a through hole. The contact pin is provided with a plugging end located below the through hole and a first electrical contact end located above the through hole, the grounding component is fixed above the insulating shell and electrically contacted with the outer shell, the grounding component is provided with at least one second electrical contact end, and the PCB is arranged above the insulating shell and electrically contacted with the first electrical contact end. The electric signal end of the PCB is electrically connected with the first electric contact end of each pin in a point contact mode, and the grounding end of the PCB is electrically connected with the second electric contact end of each grounding component in a point contact mode. Therefore, when static electricity is generated on the shell of the electric connector or in equipment, electrostatic current flows to the grounding component and then flows to the shell of the conductive material through the grounding component, so that the shell is in contact with the ground surface, and the grounding function of the electric connector is further realized.
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Description

Technical Field

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

[0002] When the existing electrical connector is welded to the PCB board, static electricity will be generated on the electrical connector housing or inside the electrical connector, and the electrical connector often does not have a grounding function to eliminate the static electricity. Of course, in order to achieve the grounding function of the electrical connector, it is usually necessary to connect a separate wire from the electrical connector to achieve the grounding function of the electrical connector.

[0003] However, such an electrical connector has disadvantages: the method of separately connecting a wire from the electrical connector to achieve the grounding function not only leads to too frequent operation, but also poses a great safety hazard due to operating errors by operators during on-site applications. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a point-contact electrical connector which can realize the grounding function without separate wiring in view of the above-mentioned prior art.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: a point contact electrical connector, comprising:

[0006] The outer shell is formed with a receiving cavity;

[0007] An electrical connection assembly is located in the accommodating cavity of the outer shell;

[0008] Characterized in that the outer shell is a conductive shell, and the electrical connection assembly comprises:

[0009] An insulating shell is formed with a cavity, and at least one through hole communicating with the cavity is formed on the upper side of the insulating shell;

[0010] At least one plug pin is fixed in a through hole corresponding to the plug pin, and the plug pin has a plug-in end located below the through hole and a first electrical contact end located above the through hole;

[0011] A conductive grounding component is fixed above the insulating housing and is in electrical contact with the outer housing, and the grounding component has at least one second electrical contact terminal;

[0012] The PCB board is arranged above the insulating shell, the electrical signal end of the PCB board contacts the first electrical contact end of each pin to achieve electrical connection, and the grounding end of the PCB board contacts the second electrical contact end of each grounding component to achieve electrical connection.

[0013] Improved, in the point-contact electrical connector, the electrical signal end of the PCB board is in elastic contact with the first electrical contact end of the pin, and the grounding end of the PCB board is in elastic contact with the second electrical contact end of the grounding component.

[0014] As a further improvement, in the point-contact electrical connector, the electrical signal end of the PCB board is welded to the first electrical contact end of the pin, and the grounding end of the PCB board is welded to the second electrical contact end of the grounding component.

[0015] Improved, in the point contact electrical connector, the pin includes a pin body having a hollow cavity, a side wall of the pin body is formed with a bending portion bent toward the inside of the hollow cavity, and an edge of the bending portion is in contact with the annular inner wall of the hollow cavity.

[0016] Furthermore, in the point contact electrical connector, the bent portion is located on the pin body and corresponds to the corresponding through hole.

[0017] Further improved, in the point contact electrical connector, the grounding component includes:

[0018] An annular conductive portion, disposed above the insulating housing and electrically connected to the second electrical contact end;

[0019] At least one protrusion is formed on the annular conductive portion, and the protrusion is interference-matched with an inner wall of the outer shell and forming the accommodating cavity.

[0020] As an improvement, in the point-contact electrical connector, an indicator light is provided on the PCB board, and the indicator light is located in the cavity of the insulating shell, and the insulating shell has a light-transmitting portion for light emitted by the indicator light to pass through.

[0021] Furthermore, in the point-contact electrical connector, the outer shell comprises:

[0022] The first section forms a first cavity;

[0023] A second section is located below the first section, and the second section cooperates with the first cavity to form the accommodating cavity;

[0024] Wherein, the insulating shell is located in the accommodating cavity.

[0025] Furthermore, in the point-contact electrical connector, the second section forms a second cavity, which is interconnected with the first cavity to form the accommodating cavity; wherein the insulating shell is located in the first cavity of the first section, and the first electrical contact end of the pin, the second electrical contact end of the grounding component and the indicator light are all located in the second cavity of the second section.

[0026] As a further improvement, in the point contact electrical connector, a light transmission structure is formed on the outer shell for cooperating with the light emitted from the light-transmitting portion to pass through.

[0027] Furthermore, in the point-contact electrical connector, the light transmission structure is an open structure.

[0028] Optionally, in the point-contact electrical connector, the electrical connector is a connector or a sensor.

[0029] Compared with the prior art, the advantages of the utility model are as follows: in the electrical connector of the utility model, by adopting a conductive outer shell, the electrical connection assembly includes an insulating shell, a plug pin fixed on the insulating shell, and a conductive grounding component, the grounding component is in electrical contact with the outer shell, and the electrical contact end of the plug pin and the electrical contact end of the grounding component are respectively in point contact with the corresponding end points on the PCB board to achieve electrical connection. In this way, when static electricity is generated on the outer shell of the electrical connector or inside the device, the static electricity current flows to the grounding component, and then flows to the conductive outer shell through the grounding component, so that the outer shell is in contact with the surface of the earth, thereby achieving the grounding function of the electrical connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of a point-contact electrical connector in an embodiment of the utility model;

[0031] Figure 2 for Figure 1 A schematic diagram of the structure of an electrical connection component in the electrical connector shown;

[0032] Figure 3 for Figure 2 A schematic diagram of the electrical connection assembly shown in another viewing angle;

[0033] Figure 4 for Figure 2 A schematic diagram of the structure of the electrical connection assembly shown;

[0034] Figure 5 It is a schematic diagram of the top structure of the insulating shell;

[0035] Figure 6 for Figure 5 A schematic diagram of the bottom structure of the insulating housing shown;

[0036] Figure 7 is a cross-sectional view of the pin structure;

[0037] Figure 8 for Figure 1 A cross-sectional view of the electrical connector shown;

[0038] Fig. 9 for Figure 8 A magnified schematic diagram of part A in FIG. DETAILED DESCRIPTION

[0039] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0040] This embodiment provides a point contact electrical connector. Figures 1 to 8 As shown, the point contact electrical connector of this embodiment includes an outer shell 1 and an electrical connection component. The outer shell 1 is formed with a receiving cavity 10 and is a conductive shell, for example, the outer shell 1 is a metal shell, and the electrical connection component is located in the receiving cavity of the outer shell. The electrical connection assembly includes an insulating shell 2, a plurality of pins 3, a conductive grounding component 4 and a PCB board 5. The insulating shell 2 is formed with a cavity 20. A plurality of through holes 21 connected to the cavity 20 are formed above the insulating shell 2. The number of through holes 21 is consistent with the number of pins 3. The pins 3 are fixed in the through holes 21 corresponding to the pins themselves. The pins 3 have a plug-in end 31 located below the through holes 21 and a first electrical contact end 32 located above the through holes 21. The first electrical contact end 32 here can be in a bent form. The grounding component 4 is fixed above the insulating shell 2 and is in electrical contact with the outer shell 1. The grounding component 4 has a plurality of second electrical contact ends 41. The PCB board 5 is arranged above the insulating shell 2. The electrical signal end 5a of the PCB board 5 is in point contact with the first electrical contact end 32 of each pin 3 to achieve electrical connection. The grounding end 5b of the PCB board 5 is in point contact with the second electrical contact end 41 of each grounding component 4 to achieve electrical connection.

[0041] In the electrical connector of this embodiment, a conductive outer shell is adopted, and the electrical connection assembly includes an insulating shell, a plug pin fixed on the insulating shell, and a conductive grounding component, the grounding component is in electrical contact with the outer shell, and the electrical contact end of the plug pin and the electrical contact end of the grounding component are respectively in point contact with the corresponding end points on the PCB board to achieve electrical connection. In this way, when static electricity is generated on the outer shell of the electrical connector or inside the device, the static electricity current flows to the grounding component, thereby achieving the outer shell contact with the surface of the earth, and then achieving the grounding function of the connector.

[0042] Specifically, in this embodiment, the electrical signal end of the PCB board 5 is in elastic contact with the first electrical contact end 32 of the pin 3, and the ground end of the PCB board 5 is in elastic contact with the second electrical contact end 41 of the grounding component 4. According to actual connection requirements, the electrical signal end of the PCB board 5 is welded to the first electrical contact end 32 of the pin 3, and the ground end of the PCB board 5 is welded to the second electrical contact end 41 of the grounding component 4.

[0043] As a specific structural implementation of the plug pin in this embodiment, the plug pin 3 here includes a plug pin body 33 having a hollow cavity 330, and a bending portion 331 is formed on the side wall of the plug pin body 33, which is bent toward the inside of the hollow cavity 330, and the edge of the bending portion 331 is in contact with the annular inner wall of the hollow cavity 330. Of course, the bending portion 331 here is located on the plug pin body 33 and corresponds to the corresponding through hole. It should be additionally explained that the bending portion 331 here can prevent glue from being punched.

[0044] It should be noted that, in this embodiment, the pin 3 is fixed in the corresponding through hole 21 of the insulating housing 2 by stamping. Moreover, on this basis, the pin body 33 can be firmly set in the corresponding through hole 21 by a conventional glue filling process.

[0045] See also Figures 2 to 4 As shown, in this embodiment, the grounding component 4 includes an annular conductive portion 42 and a plurality of protrusions 43. The annular conductive portion 42 is disposed above the insulating housing 2 and is electrically connected to the second electrical contact end 41. The protrusions 43 are formed on the annular conductive portion 42, and the protrusions 43 are interference-matched with the inner wall of the housing 1 and the accommodating cavity 10. The interference-matching between the protrusions 43 and the inner wall of the accommodating cavity 10 can be seen in Figure 8 and Fig. 9 shown.

[0046] In order to conveniently know the working status of the electrical connector, in this embodiment, an indicator light 51 is provided on the PCB board 5. For example, the indicator light 51 here is an LED lamp. The indicator light 51 is located in the cavity 20 of the insulating housing 2. The insulating housing 2 has a light-transmitting portion for the light emitted by the indicator light 51 to pass through. Of course, the light-transmitting portion here can be an opening structure or a transparent material portion. In addition, preferably, the insulating housing 2 of this embodiment is a transparent material housing or a translucent material housing.

[0047] In addition, the position of the indicator light 51 on the PCB board 5 can be adjusted according to the actual scene and demand changes. Of course, the indicator light 51 can also be directly fixed in the cavity 20 of the insulating shell 2, so that the light emitted by the indicator light 51 passes through the transparent insulating shell 2 and then emits from the opening of the outer shell 1, thereby realizing the light indication function of the electrical connector.

[0048] As the structural form of the outer shell, in this embodiment, the above-mentioned outer shell 1 includes a first section 11 and a second section 12, the first section 11 forms a first cavity (not shown in the figure), and the second section 12 is located below the first section 11, and the second section 12 cooperates with the first cavity to form the accommodating cavity; wherein, the insulating shell 2 is located in the accommodating cavity.

[0049] As an implementation of the above-mentioned accommodating cavity, the second section 12 of this embodiment is further formed with a second cavity 120, which is interconnected with the first cavity of the first section 11 to form the accommodating cavity 10; wherein, the insulating shell 2 is located in the first cavity of the first section 11, and the first electrical contact end 32 of the pin 3, the second electrical contact end 41 of the grounding component 4 and the indicator light 51 are all located in the second cavity 120 of the second section 12.

[0050] Of course, in order to facilitate the user to observe the state of the connector, the outer shell 1 of this embodiment is formed with a light transmission structure 13 for the light passing through the light passing through the light-transmitting portion of the insulating shell 2. For example, see Figure 1 , Figure 8 and Fig. 9 As shown, the light transmission structure 13 of this embodiment is an open structure.

[0051] Although the preferred embodiments of the present invention are described in detail above, it should be clearly understood that the present invention may be modified and varied by those skilled in the art. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Point contact electrical connector, including: An outer shell (1) is formed with a receiving cavity; An electrical connection assembly is located in the receiving cavity of the outer shell (1); The invention is characterized in that the outer shell (1) is a conductive shell, and the electrical connection assembly comprises: An insulating shell (2) is formed with a cavity (20), and at least one through hole (21) communicating with the cavity (20) is formed above the insulating shell (2); At least one plug pin (3) is fixed in a through hole (21) corresponding to the plug pin, and the plug pin (3) has a plug-in end (31) located below the through hole (21) and a first electrical contact end (32) located above the through hole (21); A conductive grounding component (4) fixed above the insulating housing (2) and in electrical contact with the outer housing (1), the grounding component (4) having at least one second electrical contact end (41); A PCB board (5) is arranged above the insulating housing (2); an electrical signal end (5a) of the PCB board (5) is in point contact with a first electrical contact end (32) of each pin (3) to achieve electrical connection; and a grounding end (5b) of the PCB board (5) is in point contact with a second electrical contact end (41) of each grounding component (4) to achieve electrical connection.

2. The point contact electrical connector according to claim 1, characterized in that: The electrical signal end of the PCB board (5) is in elastic contact with the first electrical contact end (32) of the plug pin (3), and the grounding end of the PCB board (5) is in elastic contact with the second electrical contact end (41) of the grounding component (4).

3. The point contact electrical connector according to claim 1, characterized in that: The electrical signal end of the PCB board (5) is welded to the first electrical contact end of the plug pin (3), and the grounding end of the PCB board (5) is welded to the second electrical contact end (41) of the grounding component (4).

4. The point contact electrical connector according to claim 1, characterized in that: The insertion pin (3) comprises an insertion pin body (33) having a hollow cavity (330), and a bending portion (331) bent toward the inside of the hollow cavity (330) is formed on the side wall of the insertion pin body (33), and the edge of the bending portion (331) is in contact with the annular inner wall of the hollow cavity (330).

5. The point contact electrical connector according to claim 4, characterized in that: The bent portion (331) is located on the pin body (33) and corresponds to the corresponding through hole (21).

6. The point contact electrical connector according to claim 4, characterized in that: The grounding component (4) comprises: An annular conductive portion (42) is disposed above the insulating housing (2) and is electrically connected to the second electrical contact end (41); At least one protrusion (43) is formed on the annular conductive portion (42), and the protrusion (43) is in interference fit with an inner wall located on the outer shell (1) and forming the accommodating cavity.

7. The point contact electrical connector according to any one of claims 1 to 6, characterized in that: An indicator light (51) is provided on the PCB board (5), and the indicator light (51) is located in the cavity (20) of the insulating shell (2). The insulating shell (2) has a light-transmitting portion through which light emitted by the indicator light (51) passes.

8. The point contact electrical connector according to claim 7, characterized in that: The outer shell (1) comprises: The first section (11) is formed with a first cavity; A second section (12) is located below the first section (11), and the second section cooperates with the first cavity to form the accommodating cavity; Wherein, the insulating shell (2) is located in the accommodating cavity.

9. The point contact electrical connector according to claim 7, characterized in that: The outer shell (1) is provided with a light transmission structure (13) for cooperating with the light emitted from the light-transmitting portion to pass through.