Interchangeable multi-core electric connector with long plugging service life

Abstract

The utility model belongs to the technical field of connectors, and particularly relates to an interchangeable multi-core electric connector with long plugging service life, 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 utility model belongs to connector technical field especially relates to a high interchangeable plug -in life multicore electric connector. BACKGROUND

[0002] In the test or numerical control equipment interface, often use multicore electric connector, this kind of equipment is expensive, requires that connector insertion life is very high, usually expects to reach million times, even ten million times. Meanwhile, in order to guarantee the stable operation of equipment, connector and equipment are usually fixed connection, such as connector and PCB board connection, or other such as crimping, welding, winding etc.

[0003] The existing multicore electric connector has the problem that the connector interface is limited by the hardness of the material used and the material fatigue of the elastic part during use, even if beryllium copper and other materials are selected, the expected insertion life requirement cannot be met. UTILITY MODEL CONTENTS

[0004] The utility model discloses to the prior art's problem proposes the following technical scheme:

[0005] A high interchangeable plug-in life multicore electric connector, comprising the connector body fixedly assembled on the equipment, the connector body is plugged with the plug-in assembly;

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

[0007] The connector body includes a plurality of contact pieces B, and an insulator B sleeved on the plurality of contact pieces B, the number of contact pieces B is consistent with the number of contact pieces A, the leading end of contact piece A is plugged with the matched connector, and the tail end of contact piece A is plugged with contact piece B;

[0008] The connector body further includes a shell, the shell has a through cavity A and a cavity B, the insulator B is assembled in the cavity B, when the plug-in assembly is plugged with the connector body, the tail end of the plug-in assembly is assembled to the inside of the cavity A, and when the plug-in assembly is plugged with the matched connector, the leading end of the plug-in assembly is located in the shell inside the matched connector.

[0009] As a preferred technical scheme of the above, the leading end of the insulator A is provided with at least one set of interchangeable protrusions;

[0010] When the plug-in assembly is plugged with the connector body, the interchangeable protrusions are located outside the shell.

[0011] As a preferred technical scheme of the above, the interchangeable protrusions have two, and are symmetrically distributed on the side wall of the insulator A.

[0012] As the preferred technical scheme, the contact piece A is located inside the insulator A, the head end of the contact piece A is provided with a pin A1, the insulator A is provided with a receiving cavity A1 at the position corresponding to the pin A1, the tail end of the contact piece A is provided with a pin A2, and the insulator A is provided with a receiving cavity A2 at the position of the pin A2.

[0013] The head end of the contact piece B extends to the outside of the insulator B and is provided with a socket B, 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 and is electrically connected with the equipment.

[0014] When the contact piece A is inserted into the paired connector, the paired connector is inserted into the receiving cavity A1 and is completely inserted into the pin A1; when the contact piece A and the contact piece B are inserted, the head end of the contact piece B is inserted into the receiving cavity A2, and the pin A2 and the socket B are completely inserted.

[0015] As the preferred technical scheme, a plurality of groove bodies are arranged on the cavity A, and the insulator A is provided with a connecting part matched with the groove bodies.

[0016] As the preferred technical scheme, the connecting part is threadedly connected with the groove body.

[0017] As the preferred technical scheme, the length of at least one groove body of the plurality of groove bodies is inconsistent with the length of the remaining groove bodies.

[0018] The beneficial effects of the utility model are as follows:

[0019] 1. The technical scheme of the utility model discloses a kind of interchangeable high plug-in life multi-core electric connectors, including connector body, and the plug-in assembly of plug-in cooperation with connector body, and the connector is designed in split type, wherein, connector body is fixedly assembled on equipment, plug-in assembly is inserted with the paired connector, the plug-in life of plug-in assembly and the paired connector is N1, the plug-in life of plug-in assembly and connector body is N2, and total plug-in life is N1xN2;When plug-in assembly appears damage, the normal use of connector can be guaranteed by replacing plug-in assembly, and the high plug-in life of connector is realized.

[0020] 2. The connector in the technical scheme has higher plug-in life, solves the problem that connector interface is limited by the hardness of material and the material fatigue of elastic part in prior art in the interface of test or numerical control equipment needs higher plug-in life, but cannot meet the expected plug-in life.

[0021] 3. The interchangeable high-plug life multi-core electrical connector of the technical solution can be directly used on the insulator A during replacement operation of the plug-in assembly, is simple to operate, avoids damage to the contact A during replacement operation of the plug-in assembly, and guarantees the service life of the connector.

[0022] 4. When the plug-in assembly is plugged with the paired connector, the front end of the plug-in assembly is located inside the shell of the paired connector, that is, the front end of the plug-in assembly is covered by the paired connector, and the tail end of the plug-in assembly is covered by the connector body, so that the connector in the technical solution has good protection effect (mainly in waterproof, dustproof, etc.) during use, has a defense function, can adapt to rain, dust and other harsh environments, and is more suitable for military, aerospace, special equipment, communication equipment and other fields. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A structure schematic view of an interchangeable high-plug life multi-core electrical connector in embodiment 1 is shown.

[0024] Figure 2 A plug-in state schematic view of the plug-in assembly and the connector body in embodiment 1 is shown.

[0025] Figure 3 A cross-sectional view of A-A in embodiment 1 is shown. Figure 2

[0026] Figure 4 A plug-in state schematic view of the contact A and the contact B in embodiment 1 is shown.

[0027] Plug-in assembly 1; contact A 11; plug pin A one 111; plug pin A two 112; insulator A 12; interchangeable protrusion 121; connecting part 122; accommodating cavity one 123; accommodating cavity two 124;

[0028] Connector body 2; contact B 21; plug hole B 211; plug pin B 212; shell 22; cavity A 221; cavity B; groove body 222; insulator B 23;

[0029] Device 3. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme of the utility model will be clearly and completely described below in combination with embodiments.

[0031] Embodiment 1

[0032] As​Figure 1 、 Figure 2 、 Figure 3 As shown in FIG. 1, an interchangeable high-plug-in life multi-core electric connector comprises a connector body 2 fixedly assembled on a device 3, and a plug-in assembly 1 plug-in matched with the connector body 2; a counterpart 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 electrical connection between the counterpart connector and the device 3.

[0033] The plug-in assembly 1 comprises a plurality of contact pieces A11 and an insulator A12 sleeved on the plurality of contact pieces A11.

[0034] The connector body 2 comprises a plurality of contact pieces B21 and an insulator B23 sleeved on the plurality of contact pieces B21, the number of the contact pieces B21 is consistent with the number of the contact pieces A11, the leading end of the contact piece A11 is plugged into the counterpart connector, and the trailing end of the contact piece A11 is plugged into the contact piece B21.

[0035] The connector body 2 further comprises a shell 22, the shell 22 has a cavity A221 and a cavity B provided therein, the insulator B23 is assembled in the cavity B, when the plug-in assembly 1 is plugged into the connector body 2, the trailing end of the plug-in assembly 1 is assembled into the inside of the cavity A221, and when the plug-in assembly 1 is plugged into the counterpart connector, the leading end of the plug-in assembly 1 is located in the inside of the shell of the counterpart connector.

[0036] The interchangeable high-plug-in life multi-core electric connector in the technical solution comprises the connector body 2 and the plug-in assembly 1 plug-in matched with the connector body 2, and the connector is designed in a split type, wherein the connector body 2 is fixedly assembled on the device 3, the plug-in assembly 1 is plugged into the counterpart connector, the plug-in life of the plug-in assembly 1 plugged into the counterpart 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, and high plug-in life of the connector is realized.

[0037] The connector in the technical solution has high plug-in life, and solves the problem in the prior art that the plug-in life of a connector interface cannot meet the expected plug-in life due to the hardness of the material and the material fatigue of the elastic part.

[0038] Wherein, the interchangeable high-plug life multi-core electric connector in the technical solution, when the plug-in assembly 1 is plugged with the connector body 2, the tail end of the plug-in assembly 1 is assembled to the inside of the cavity A221, that is, the head end of the plug-in assembly 1 is located outside the shell 22, when the plug-in assembly 1 is replaced, the disassembly tool can be directly applied to the insulator A12, the operation is simple, and at the same time, the plug-in assembly 1 is avoided from being applied to the contact A11 when the plug-in assembly 1 is replaced, the contact A11 is damaged under stress, and the service life of the connector is guaranteed.

[0039] When the plug-in assembly 1 is plugged with the paired connector, the head end of the plug-in assembly 1 is located inside the shell of the paired connector, that is, the head end of the plug-in assembly 1 is covered by the paired connector, and the tail end of the plug-in assembly 1 is covered by the connector body 2, so that the connector in the technical solution has good protection effect (mainly reflected in waterproof, dustproof and the like) during use, has defense function, can adapt to rain, sand and other harsh environments, and is more suitable for military, aerospace, special equipment, communication equipment and the like.

[0040] Further, in order to improve the operability of the plug-in assembly 1 when being replaced, as shown in Figure 1 , Figure 2 , Figure 3 , the head end of the insulator A12 is provided with at least one set of interchangeable protrusions 121; when the plug-in assembly 1 is plugged with the connector body 2, the interchangeable protrusions 121 are located outside the shell 22.

[0041] When the plug-in assembly 1 needs to be replaced, the disassembly tool is applied to the position of the interchangeable protrusions 121, the setting of the interchangeable protrusions 121 increases the stress point, and the convenience degree of pulling out the plug-in assembly 1 from the connector body 2 is improved.

[0042] Wherein, the setting of the interchangeable protrusions 121 outside the shell 22 facilitates the replacement of the plug-in assembly 1, and guarantees the integrity of the shell 22, so that the connector in the technical solution has better protection effect.

[0043] More specifically, in order to further improve the convenience degree of the plug-in assembly 1 when being replaced, as shown in Figure 1 , Figure 2 , Figure 3 , the set of interchangeable protrusions 121 has two and is symmetrically distributed on the side wall of the insulator A12.

[0044] The setting of the interchangeable protrusions 121 symmetrically distributed on the side wall of the insulator A12 is reasonable, when the plug-in assembly 1 is replaced by using the disassembly tool, the two ends of the insulator A12 are balanced under stress, and the convenience degree of the plug-in assembly 1 when being replaced is guaranteed.

[0045] To realize the plug-in cooperation between the matched connector and the plug-in assembly 1, between the plug-in assembly 1 and the connector body 2, and between the connector body 2 and the device 3, so that the electrical connection between the matched connector and the device 3 is realized. Figure 1 、 Figure 3 、 Figure 4 As shown in the figure, in the technical solution, the one end in contact with the matched connector in the plug-in assembly 1 is the first end, and the one end in contact with the connector body 2 is the tail end. In the connector body 2, the one end in contact with the plug-in assembly 1 is the first end, and the one end in contact with the device 3 is the tail end. The contact piece A11 is located inside the insulator A12, the first end of the contact piece A11 is provided with a pin A-one 111, the insulator A12 is provided with a receiving cavity one 123 at the position corresponding to the pin A-one 111, the tail end of the contact piece A11 is provided with a pin A-two 112, and the insulator A12 is provided with a receiving cavity two 124 at the position of the pin A-two 112.

[0046] The first end of the contact piece B21 extends to the outside of the insulator B23 and is provided with a socket B211, the tail end of the contact piece B21 is provided with a pin B212, the pin B212 extends to the outside of the insulator B23 and is electrically connected with the device 3, and more specifically, the pin B212 is welded with the PCB through hole; the whole of the contact piece B21 is L-shaped, that is, the connector in the technical solution is provided as an L-shaped connector.

[0047] When the contact piece A11 is plugged with the matched connector, the matched connector is inserted into the inside of the receiving cavity one 123 to be completely plugged with the pin A-one 111; when the contact piece A11 and the contact piece B21 are plugged, the first end of the contact piece B21 is inserted into the inside of the receiving cavity two 124 to be completely plugged with the pin A-two 112 and the socket B211.

[0048] In the technical solution, the plug-in end of the matched connector is plugged with the pin A-one 111, the pin A-two 112 is plugged with the socket B211, the pin B212 is welded with the PCB board, the contact piece A11 and the contact piece B21 are plugged to form a passage, and the electrical connection between the matched connector and the device 3 is realized.

[0049] As shown in the figure, Figure 1 、 Figure 2 A plurality of groove bodies 223 are arranged on the cavity body A221, and the connecting part 122 matched with the groove body 223 is arranged on the insulator A12.

[0050] When the plug-in assembly 1 is plugged with the connector body 2, the connecting part 122 is located inside the groove body 223 and is slidably matched with the groove body 223, and has a guiding effect in the process of plugging the plug-in assembly 1 with the connector body 2.

[0051] To further improve the stability of the connector during mating and unmating, the relative positions of the mating assembly 1 and the connector body 2 are defined, such as... Figure 1 , Figure 2 As shown, the connecting part 122 is threadedly connected to the groove 223; more specifically, threaded holes are opened on the connecting part 122 and the groove 223, and the screw fixes the relative position between the mating assembly 1 and the connector body 2 by connecting the two threaded holes.

[0052] In this technical solution, the position of the mating component 1 is fixed by the threaded connection between the mating component 1 and the connector body 2, so as to avoid the mating component 1 being pulled out from the connector body 2 when the mated connector is pulled out; at the same time, the threaded connection between the mating component 1 and the connector body 2 makes it simple and convenient to replace the mating component 1.

[0053] To ensure the accuracy of the relative position of the mating assembly 1 and the connector body 2 during the mating process, such as Figure 1 , Figure 2 As shown, at least one of the multiple slots 223 has a length that is inconsistent with the lengths of the other slots 223; the setting of at least one slot 223 having an inconsistent length is a foolproof setting for the mating assembly 1.

[0054] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An interchangeable high plug-in life multi-core electrical connector comprising a connector body (2) fixedly fitted on a device (3), characterized in that, The connector body (2) is plugged with a plug-in assembly (1); The plug-in assembly (1) comprises a plurality of contact pieces A (11), 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), an insulator B (23) sleeved on the plurality of contact pieces B (21), the number of the contact pieces B (21) is consistent with the number of the contact pieces A (11), the leading end of the contact pieces A (11) is plugged with the paired connector, and the trailing end of the contact pieces A (11) is plugged with the contact pieces B (21); The connector body (2) further comprises a shell (22), the shell (22) has a cavity A (221) and a cavity B arranged therein in a penetrating manner, the insulator B (23) is assembled in the cavity B, when the plug-in assembly (1) is plugged with the connector body (2), the trailing end of the plug-in assembly (1) is assembled to the inside of the cavity A (221), and when the plug-in assembly (1) is plugged with the paired connector, the leading end of the plug-in assembly (1) is located inside the shell of the paired connector.

2. The interchangeable high cycle life multi-core electrical connector of claim 1, wherein, The leading end of the insulator A (12) is provided with at least one set of interchangeable protrusions (121); When the plug-in assembly (1) is plugged with the connector body (2), the interchangeable protrusions (121) are located outside the shell (22).

3. The high cycle life, interchangeable multi -core electrical connector of claim 2, wherein, The set of interchangeable protrusions (121) has two and is symmetrically distributed on the side wall of the insulator A (12).

4. The high cycle life, interchangeable multi -core electrical connector of claim 1, wherein, The contact pieces A (11) are located inside the insulator A (12), the leading end of the contact pieces A (11) is provided with a pin A one (111), the insulator A (12) is provided with a receiving cavity one (123) at the position corresponding to the pin A one (111), the trailing end of the contact pieces A (11) is provided with a pin A two (112), and the insulator A (12) is provided with a receiving cavity two (124) at the position of the pin A two (112); The leading end of the contact pieces B (21) extends to the outside of the insulator B (23) and is provided with a socket B (211), the trailing end of the contact pieces B (21) is provided with a pin B (212), and the pin B (212) extends to the outside of the insulator B (23) and is electrically connected with the equipment (3); When the contact pieces A (11) are plugged with the paired connector, the paired connector is inserted into the inside of the receiving cavity one (123) and is completely plugged with the pin A one (111); when the contact pieces A (11) and the contact pieces B (21) are plugged, the leading end of the contact pieces B (21) is inserted into the inside of the receiving cavity two (124) and the pin A two (112) and the socket B (211) are completely plugged.

5. The interchangeable high cycle life multi-core electrical connector of claim 1, wherein, A plurality of grooves (223) are arranged on the cavity A (221), and the insulator A (12) is provided with a connecting part (122) matched with the grooves (223).

6. The high cycle life, interchangeable multi -core electrical connector of claim 5, wherein, The connecting part (122) is threadedly connected with the grooves (223).

7. The high cycle life, interchangeable multi-conductor electrical connector of claim 6, wherein, The length of at least one groove (223) of the plurality of grooves (223) is inconsistent with the length of the remaining grooves (223).

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