Interchangeable multi-core electric connector with long plugging service life

Abstract

The invention belongs to the technical field of connectors, and particularly relates to an interchangeable long-plugging-life multi-core electric connector which comprises a connector body fixedly assembled on equipment, and the connector body is matched with a plugging assembly in a plugging manner; the plugging assembly comprises a plurality of contact pieces A and insulators A sleeving the plurality of contact pieces A; the connector body comprises a plurality of contact pieces B and insulators B arranged on the plurality of contact pieces B in a sleeving mode. According to the interchangeable multi-core electric connector with the long plugging service life in the technical scheme, the connector is designed in a split mode, the connector body is fixedly assembled on equipment, the plugging assembly is plugged with the matched connector, the plugging service life of the plugging assembly and the matched connector is N1, the plugging service life of the plugging assembly and the connector body is N2, and the plugging service life of the plugging assembly and the connector body is N2. The total plugging service life is N1 * N2; when the plugging assembly is damaged, the normal use of the connector can be ensured by replacing the plugging assembly, and the long plugging service life of the connector is realized.

Description

Technical Field

[0001] The invention belongs to the technical field of connectors, and in particular relates to an interchangeable multi-core electrical connector with a long plug-in life. Background Art

[0002] Multi-core electrical connectors are often used in test or CNC equipment interfaces. Such equipment is expensive and requires a high plug-in life of the connector, usually expected to reach millions or even tens of millions of times. At the same time, to ensure stable operation of the equipment, the connector and the equipment are usually fixedly connected, such as connecting the connector to the PCB board, or other methods such as crimping, welding, wrapping, etc.

[0003] During the use of existing multi-core electrical connectors, there is a problem that the connector interface is limited by the hardness of the materials used and the material fatigue of the elastic parts. Even if materials such as beryllium copper are used, the expected plug-in life requirements are often not met. Summary of the invention

[0004] The present invention aims at solving the problems in the prior art and proposes the following technical solutions:

[0005] An interchangeable multi-core electrical connector with a long plug-in life, comprising a connector body fixedly assembled on a device, wherein the connector body is pluggable and matched with a plug-in assembly;

[0006] The plug-in assembly comprises a plurality of contact members A and an insulator A sleeved on the plurality of contact members A;

[0007] The connector body comprises a plurality of contacts B and an insulator B sleeved on the plurality of contacts B, the number of the contacts B being the same as the number of the contacts A, the head end of the contact A being plugged into the mating connector, and the tail end of the contact A being plugged into the contact B;

[0008] The connector body also includes a shell, which has a cavity A and a cavity B that are arranged through each other. The insulator B is assembled in the cavity B. When the plug-in component is plugged into the connector body, the plug-in component is assembled into the interior of the cavity A. When the plug-in component is plugged into the mating connector, the plug-in end of the mating connector is located inside the cavity A.

[0009] As a preferred embodiment of the above technical solution, the tail end of the insulator A is provided with at least one group of interchange grooves, and the shell is provided with at least one group of interchange openings, and the interchange openings are connected with the cavity A;

[0010] When the plug-in assembly is plugged into the connector body, the upper portion of the interchangeable slot overlaps with the lower portion of the interchangeable opening.

[0011] As a preferred embodiment of the above technical solution, a group of the interchangeable grooves has two, which are symmetrically distributed on the side wall of the insulator A; a group of the interchangeable openings has two, which are symmetrically distributed on the shell.

[0012] As a preferred embodiment of the above technical solution, the head end of the contact piece A extends to the outside of the insulator A and is provided with a socket A, the socket A is plugged into the mating connector, the tail end of the contact piece A is provided with a pin A, and the insulator A is provided with a receiving cavity at the position of the pin A;

[0013] The head end of the contact piece B extends to the outside of the insulator B and is provided with a socket B, and the tail end of the contact piece B is provided with a pin B, and the pin B extends to the outside of the insulator B to be electrically connected to the device;

[0014] When the contact A and the contact B are plugged together, the head end of the contact B is inserted into the interior of the accommodating cavity until the pin A and the socket B are fully plugged together.

[0015] As a preferred embodiment of the above technical solution, a plurality of slots are provided on the cavity A, and a connecting portion matching the slots is provided on the insulator A.

[0016] As a preferred embodiment of the above technical solution, the connecting portion is threadedly connected to the groove body.

[0017] The beneficial effects of the present invention are:

[0018] 1. An interchangeable multi-core electrical connector with a long plug-in life in the technical solution includes a connector body and a plug-in assembly that is plugged in and out with the connector body. The connector is designed in a split type, wherein the connector body is fixedly assembled on the equipment, the plug-in assembly is plugged in with the paired connector, the plug-in life of the plug-in assembly and the paired connector is N1, the plug-in life of the plug-in assembly and the connector body is N2, and the total plug-in life is N1xN2; when the plug-in assembly is damaged, the normal use of the connector can be ensured by replacing the plug-in assembly, thereby achieving a high plug-in life of the connector.

[0019] 2. The connector in this technical solution has a long plug-in life, which solves the problem in the prior art that the interface of equipment such as testing or CNC requires a long plug-in life, but the connector interface is limited by the hardness of the material used and the material fatigue of the elastic parts and cannot meet the expected plug-in life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The structure diagram of an interchangeable multi-core electrical connector with a long plug-in life in Embodiment 1 is shown;

[0021] Figure 2 The figure shows a partial structural diagram of an interchangeable multi-core electrical connector with a long plug-in life in Embodiment 1;

[0022] Figure 3 The figure shows a schematic diagram of the plug-in state of the plug-in assembly and the connector body in the first embodiment;

[0023] Figure 4 It shows Figure 3 Schematic cross-sectional view of AA in the figure;

[0024] Figure 5 The diagram shows the plugged-in state of the contact A and the contact B in the first embodiment.

[0025] Reference numerals: plug assembly 1; contact piece A11; socket A111; pin A112; insulator A12; interchange slot 121; connecting portion 122; accommodating cavity 123;

[0026] Connector body 2; contact piece B21; jack B211; pin B212; housing 22; cavity A221; cavity B222; slot 223; interchange opening 224; insulator B23;

[0027] Device 3. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0029] Example 1

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an interchangeable multi-core electrical connector with a long plug-in life includes a connector body 2 fixedly assembled on a device 3, and the connector body 2 is plugged in and out with a plug-in assembly 1; the paired connector is plugged into the plug-in assembly 1, and the plug-in assembly 1 is plugged into the connector body 2 fixedly assembled on the device 3, so as to realize the electrical connection between the paired connector and the device 3.

[0031] The plug-in assembly 1 includes a plurality of contact pieces A11 and an insulator A12 sleeved on the plurality of contact pieces A11;

[0032] The connector body 2 includes a plurality of contacts B21 and an insulator B23 sleeved on the plurality of contacts B21. The number of the contacts B21 is the same as the number of the contacts A11. The head end of the contact A11 is plugged into the mating connector, and the tail end of the contact A11 is plugged into the contact B21.

[0033] The connector body 2 also includes a shell 22, which has a cavity A221 and a cavity B222 that are arranged through each other. The insulator B23 is assembled in the cavity B222. When the plug-in component 1 is plugged into the connector body 2, the plug-in component 1 is assembled into the interior of the cavity A221. When the plug-in component 1 is plugged into the mating connector, the plug-in end of the mating connector is located inside the cavity A221.

[0034] An interchangeable multi-core electrical connector with a long plug-in life in the technical solution includes a connector body 2 and a plug-in assembly 1 that is pluggable with the connector body 2. The connector is designed to be split, wherein the connector body 2 is fixedly assembled on a device 3, and the plug-in assembly 1 is plugged with a paired connector. The plug-in life of the plug-in assembly 1 and the paired connector is N1, the plug-in life of the plug-in assembly 1 and the connector body 2 is N2, and the total plug-in life is N1xN2; when the plug-in assembly 1 is damaged, the normal use of the connector can be ensured by replacing the plug-in assembly 1, thereby achieving a high plug-in life of the connector.

[0035] The connector in this technical solution has a long plug-in life, which solves the problem in the prior art that a long plug-in life is required in the interface of equipment such as testing or numerical control, but the connector interface is limited by the hardness of the material used and the material fatigue of the elastic parts and cannot meet the expected plug-in life.

[0036] Among them, the plug-in assembly 1 is assembled inside the cavity A221, and there are certain difficulties in replacing the plug-in assembly 1. Therefore, if Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the rear end of the insulator A12 is provided with at least one group of interchange slots 121, and the housing 22 is provided with at least one group of interchange openings 224, and the interchange openings 224 are connected with the cavity A221;

[0037] When the plug-in assembly 1 is plugged into the connector body 2 , the upper portion of the interchange slot 121 overlaps with the lower portion of the interchange opening 224 .

[0038] When replacing the plug-in component 1, the disassembly tool is passed through the interchangeable opening 224 and abutted against the upper part of the interchangeable slot 121, and the plug-in component 1 is pushed upward by the disassembly tool to realize the replacement operation of the plug-in component 1, wherein the disassembly tool is passed through the interchangeable opening 224 to act on the insulator A12, so as to avoid the plug-in component 1 acting on the contact A11 during the replacement operation, thereby preventing the contact A11 from being damaged by the force, thereby ensuring the service life of the connector.

[0039] An interchangeable multi-core electrical connector with a long plug-in life in the present technical solution has an interchangeable slot 121 on the insulator A12 and an interchangeable opening 224 on the shell 22. The plug-in assembly 1 can be replaced by using a suitable disassembly tool without damaging the connection between the connector body 2 and the device 3 at the application site. The structure is simple and the replacement is convenient.

[0040] More specifically, in order to further improve the convenience of replacing the plug-in assembly 1, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a group of interchange slots 121 has two, symmetrically distributed on the side wall of the insulator A12; a group of interchange openings 224 has two, symmetrically distributed on the shell 22.

[0041] The interchangeable slots 121 are symmetrically distributed on the insulator A12, and the interchangeable openings 224 are symmetrically distributed on the shell 22. The arrangement is reasonable. When the disassembly tool is used to replace the plug-in assembly 1, the forces at both ends of the insulator A12 are balanced, and the action of pushing the plug-in assembly 1 upward is smoother.

[0042] To achieve plug-in matching between the paired connector and the plug assembly 1, between the plug assembly 1 and the connector body 2, and between the connector body 2 and the device 3, so that the paired connector and the device 3 are electrically connected. Figure 4 , Figure 5 As shown, in the technical solution, an interchangeable multi-core electrical connector with a long plug-in life is provided. In the plug assembly 1, the end in contact with the mating connector is the head end, and the end in contact with the connector body 2 is the tail end. In the connector body 2, the end in contact with the plug assembly 1 is the head end, and the end in contact with the device 3 is the tail end. The head end of the contact piece A11 extends to the outside of the insulator A12 and is provided with a socket A111, which is plugged with the mating connector. The tail end of the contact piece A11 is provided with a pin A112, and the insulator A12 is provided with a receiving cavity 123 at the position of the pin A112;

[0043] The front end of the contact B21 extends to the outside of the insulator B23 and is provided with a socket B211, and the rear end of the contact B21 is provided with a pin B212. The pin B212 extends to the outside of the insulator B23 and is electrically connected to the device 3. More specifically, the pin B212 is welded to the PCB through hole.

[0044] When the contact A11 and the contact B21 are plugged together, the head end of the contact B21 is inserted into the interior of the accommodating cavity 123 until the pin A112 is fully plugged into the socket B211.

[0045] In this technical solution, the plug-in end of the paired connector is plugged into and matched with the socket A111, the pin A112 is plugged into and matched with the socket B211, the pin B212 is welded to the PCB board, and the contact A11 and the contact B21 are plugged together to form a pathway, thereby realizing the electrical connection between the paired connector and the device 3.

[0046] like Figure 1 , Figure 2 As shown, a plurality of slots 223 are provided on the cavity A221 , and a connecting portion 122 matching the slots 223 is provided on the insulator A12 .

[0047] When the plug-in assembly 1 is plugged in and out of the connector body 2 , the connecting portion 122 is located inside the slot 223 and slidably fits with the slot 223 , playing a guiding role during the plug-in and pull-out process of the plug-in assembly 1 and the connector body 2 .

[0048] In order to further improve the stability of the connector during the plugging and unplugging process, the relative positions of the plug assembly 1 and the connector body 2 are limited, such as Figure 1 , Figure 2 As shown, the connection portion 122 is threadedly connected to the groove body 223. More specifically, threaded holes are provided on the connection portion 122 and the groove body 223, and the screws are connected to the two threaded holes to fix the relative position between the plug-in assembly 1 and the connector body 2.

[0049] In the present technical solution, the position of the plug-in component 1 is fixed by a threaded connection between the plug-in component 1 and the connector body 2, and the plug-in component 1 is prevented from being pulled out of the connector body 2 when the paired connector is pulled out; at the same time, the plug-in component 1 and the connector body 2 are threadedly connected, which makes the operation simple and convenient when replacing the plug-in component 1.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. An interchangeable multi-core electrical connector with a long plug-in life, comprising a connector body (2) fixedly mounted on a device (3), characterized in that: The connector body (2) is pluggable and matched with the plug-in assembly (1); The plug-in assembly (1) comprises a plurality of contact pieces A (11) and an insulator A (12) sleeved on the plurality of contact pieces A (11); The connector body (2) comprises a plurality of contact pieces B (21) and an insulator B (23) sleeved on the plurality of contact pieces B (21), the number of the contact pieces B (21) being the same as the number of the contact pieces A (11), the head end of the contact piece A (11) being plugged into a mating connector, and the tail end of the contact piece A (11) being plugged into the contact piece B (21); The connector body (2) further comprises a shell (22), wherein the shell (22) comprises a cavity A (221) and a cavity B (222) which are arranged through each other, and the insulator B (23) is assembled in the cavity B (222). When the plug-in assembly (1) is plugged into the connector body (2), the plug-in assembly (1) is assembled into the interior of the cavity A (221); when the plug-in assembly (1) is plugged into the mating connector, the plug-in end of the mating connector is located inside the cavity A (221).

2. The interchangeable multi-core electrical connector with a long plug-in life according to claim 1, characterized in that: The rear end of the insulator A (12) is provided with at least one group of interchange grooves (121), and the shell (22) is provided with at least one group of interchange openings (224), and the interchange openings (224) are connected to the cavity A (221); When the plug-in assembly (1) is plugged into the connector body (2), the upper portion of the interchangeable slot (121) overlaps with the lower portion of the interchangeable opening (224).

3. The interchangeable multi-core electrical connector with a long plug-in life according to claim 2, characterized in that: A group of the interchange grooves (121) has two, which are symmetrically distributed on the side wall of the insulator A (12); a group of the interchange openings (224) has two, which are symmetrically distributed on the shell (22).

4. The interchangeable multi-core electrical connector with a long plug-in life according to claim 1, characterized in that: The head end of the contact piece A (11) extends to the outside of the insulator A (12) and is provided with a plug hole A (111), and the plug hole A (111) is plugged into the mating connector. The tail end of the contact piece A (11) is provided with a plug pin A (112), and the insulator A (12) is provided with a receiving cavity (123) at the position of the plug pin A (112); The head end of the contact piece B (21) extends to the outside of the insulator B (23) and is provided with a socket B (211), and the tail end of the contact piece B (21) is provided with a plug pin B (212), and the plug pin B (212) extends to the outside of the insulator B (23) to be electrically connected to the device (3); When the contact piece A (11) and the contact piece B (21) are plugged together, the head end of the contact piece B (21) is inserted into the interior of the accommodating cavity (123) until the plug pin A (112) and the plug hole B (211) are fully plugged together.

5. The interchangeable multi-core electrical connector with a long plug-in life according to claim 1, characterized in that: The cavity A (221) is provided with a plurality of slots (223), and the insulator A (12) is provided with a connecting portion (122) matching the slots (223).

6. The interchangeable multi-core electrical connector with a long plug-in life according to claim 5, characterized in that: The connecting portion (122) is threadedly connected to the groove body (223).

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