Connector

Abstract

One end of the connector is used for being plugged with a plug-in connector, the connector comprises a shell, at least one terminal and at least one wire, the terminal comprises a plug-in part, a fixing part and a connecting part which are connected in sequence, the shell is arranged on the outer side of at least part of the fixing part in an injection molding mode in an integrated injection molding mode, and the plug-in part is connected with the connecting part in an injection molding mode. The two ends of the interior of the shell are provided with an inserting area and a connecting area respectively, the inserting part is arranged in the inserting area, and the connecting part is arranged in the connecting area; in the connecting area, the wires and the terminals are arranged in a one-to-one correspondence mode, and the wires are connected with the connecting part in a welded mode. According to the utility model, the product quality and the production efficiency are improved. And the method is suitable for large-scale production and has strong feasibility.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, and more specifically, to a connector. Background Art

[0002] During the use of connector products, choosing a suitable sealing connection method plays a vital role in the sealing performance. The connection terminals in existing sealed connectors are usually fixedly connected to the connector housing by pins, and then the connection area is filled with sealant to enhance the sealing. However, due to the large gap between the terminal and the connector housing plastic and the different materials, thermal expansion and contraction deformation occurs in a long-term high temperature or low temperature working environment. Therefore, a new structure is needed to solve the above problems. Utility Model Content

[0003] The utility model aims to provide a connector, one end of which is used for plugging with a plug-in connector, the connector comprising a housing, at least one terminal and at least one wire.

[0004] The terminal comprises a plug-in portion, a fixing portion and a connecting portion which are connected in sequence.

[0005] The housing is integrally molded on at least part of the outer side of the fixing portion.

[0006] The two ends of the shell have a plug-in area and a connection area respectively, the plug-in part is arranged in the plug-in area, and the connection part is arranged in the connection area; in the connection area, the wires and the terminals are arranged one by one, and the wires are welded and connected to the connection parts.

[0007] Optionally, there are a plurality of terminals, the plurality of terminals are spaced apart, and the housing is integrally injection-molded on the outside of the plurality of terminals.

[0008] Optionally, at least part of the surface of the connecting portion is provided with knurling.

[0009] Optionally, at least one locking protrusion is provided on the outer side wall of the fixing portion.

[0010] Optionally, the connecting portion is overlapped with the conducting wire and connected by ultrasonic welding to form a welding portion.

[0011] Optionally, the connector further comprises a sealing ring carrier, one end of which is provided with mounting holes corresponding to the number of the wires, the wires are passed through the mounting holes and are arranged in the sealing ring carrier, and the other end of the sealing ring carrier is sleeved on the outer periphery of the shell and is snap-connected to the shell.

[0012] Optionally, it also includes at least one sealing ring and at least one positioning member, the positioning member is provided with a positioning hole corresponding to the wire, after the positioning member and the sealing ring are sleeved on part of the outer circumference of the wire, the sealing ring enters the mounting hole, the positioning member blocks the mounting hole and is clamped and connected with the sealing ring carrier.

[0013] Optionally, an annular protrusion for blocking the sealing ring is provided on the inner wall of the mounting hole close to the housing.

[0014] Optionally, at least the outer peripheral surface of the welding portion is covered with a double-layer heat shrink tube or coated with VE glue.

[0015] Optionally, at least two adjacent connecting portions are integrally formed.

[0016] The utility model has the following technical effects:

[0017] The terminal and the housing are integrally molded, and the housing is extended to both ends with a plug-in area and a connection area. The fixed part of the terminal is combined with the housing by integral injection molding, which not only increases the bonding strength between the terminal and the housing, and facilitates the electrical connection between the plug-in part of the terminal and the plug-in end, but also ensures the sealing strength between the housing and the terminal, increases the reliability of the electrical connection between the terminal connection part and the wire, and improves the product quality and production efficiency. It is suitable for large-scale production and has strong feasibility.

[0018] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0020] Figure 1 This is a schematic diagram of the structure of the connector of the utility model;

[0021] Figure 2 for Figure 1 Section view along line AA;

[0022] Figure 3 for Figure 1 Sectional view along line BB;

[0023] Figure 4 This is a schematic diagram of the connection structure between the terminal and the housing of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the terminal and the housing matching the utility model;

[0025] Figure 6 It is a structural schematic diagram of another implementation mode of the terminal and the housing matching of the utility model.

[0026] The following are marked in the figure:

[0027] 1. Shell; 2. Terminal; 3. Wire; 6. Sealing ring carrier; 7. Sealing ring; 8. Positioning piece; 10. VE glue; 11. Plug connector;

[0028] 21. Insertion part; 22. Fixing part; 23. Connecting part;

[0029] 11. Plug-in area; 12. Connection area;

[0030] 231, knurling; 221, positioning protrusion; 61, annular protrusion. DETAILED DESCRIPTION

[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0032] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0034] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0035] like Figure 1-Figure 6 The connector shown in the figure has one end for plugging with a plug connector 11, and the connector comprises a housing 1, at least one terminal 2 and at least one wire 3, wherein the terminal 2 comprises a plug-in portion 21, a fixing portion 22 and a connecting portion 23 connected in sequence, and the housing 1 is integrally molded on the outer side of at least part of the fixing portion 22.

[0036] The two ends of the shell 1 respectively have a plug-in area 11 and a connection area 12. The plug-in portion 21 is arranged in the plug-in area 11 for electrically connecting to the plug-in connector 11. The connection portion 23 is arranged in the connection area 12. In the connection area 12, the wires 3 and the terminals 2 are arranged one by one, and the wires 3 are welded and connected to the connection portion 23.

[0037] The terminal 2 and the housing 1 are integrally molded, and the housing 1 is extended to both ends with a plug-in area 11 and a connection area 12. The fixing portion 22 of the terminal 2 is combined with the housing 1 by integral injection molding, which not only increases the bonding strength between the terminal 2 and the housing 1, and facilitates the electrical connection between the plug-in portion 21 of the terminal 2 and the plug-in end, but also ensures the sealing strength between the housing 1 and the terminal 2, increases the reliability of the electrical connection between the connection portion 23 of the terminal 2 and the wire 3, and improves the quality and production efficiency of the product. It is suitable for large-scale production and has strong feasibility.

[0038] The connecting portion 23 is overlapped with the wire 3 and connected by ultrasonic welding to form a welding portion. Figure 4 As shown, at least part of the surface of the connecting portion 23 is provided with knurling 231, and the knurling 231 can be understood as a structure with spikes protruding from the surface of the connecting portion 23. When the terminal 2 is welded to the wire 3, the knurling 231 can pierce the conductor surface of the wire 3, thereby ensuring more stable current transmission and making the connection between the connecting portion 23 and the wire 3 more firmly.

[0039] like Figure 1 As shown, at least the outer peripheral surface of the welding part is covered with a double-layer heat shrink tube or coated with VE glue 10, which effectively ensures the insulation performance and conductive stability of the welding part.

[0040] In one embodiment, if Figure 1 and Figure 4 As shown, there are a plurality of terminals 2, and the plurality of terminals 2 are arranged at intervals, and the housing 1 is integrally injection-molded on the outside of the plurality of terminals 2.

[0041] like Figure 4 As shown, at least one locking protrusion 221 is provided on the outer side wall of the fixing portion 22, and the fixing portion 22 is locked with the housing 1 to ensure that the connection between the terminal 2 and the housing 1 is more secure.

[0042] like Figure 1 As shown, in order to fix the wires 3, the connector also includes a sealing ring carrier 6, one end of the sealing ring carrier 6 is provided with mounting holes corresponding to the number of the wires 3, the wires 3 are passed through the mounting holes in the sealing ring carrier 6, and the other end of the sealing ring carrier 6 is sleeved on the outer periphery of the shell 1 and is snap-connected to the shell 1.

[0043] In one embodiment, if Figure 1As shown, in order to further fix the wire 3 and ensure the stability of the electrical connection between the wire 3 and the terminal 2, the connector also includes at least one sealing ring 7 and at least one positioning member 8, the positioning member 8 is provided with a positioning hole corresponding to the wire 3, after the positioning member 8 and the sealing ring 7 are sleeved on part of the periphery of the wire 3, the sealing ring 7 enters the mounting hole, the positioning member 8 blocks the mounting hole and is clamped and connected with the sealing ring carrier 6.

[0044] like Figure 1 As shown, an annular protrusion 61 for blocking the sealing ring 7 is also provided on the inner wall of the mounting hole close to the housing 1 to ensure that the sealing ring 7 is fixed and does not move.

[0045] In one embodiment, if Figure 5 As shown, the terminals 2 correspond to the wires 3 one by one, and the two ends of the fixing portion 22 of the terminal 2 are respectively connected to a connecting portion 23 and a plug-in portion 21 .

[0046] like Figure 6 As shown, at least two adjacent connecting parts 23 are integrally formed, and the terminal 2 is connected to the wire 3 in a one-to-one correspondence, but the terminal 2 has multiple plug-in parts 21, and the multiple plug-in parts 21 are respectively integrally connected to the fixing part 22. Specifically, the two connecting parts 23 are respectively welded to the aluminum flat wire that conducts a large current, and the wire 3 can be conveniently connected to the plug connector 11 through different plug-in parts 21, so that the current on the aluminum flat wire is finely distributed, with a simple structure, small size, low cost, easy installation, and can improve the production efficiency and subsequent maintenance efficiency of the product.

[0047] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A connector, one end of which is used for plugging with a plug-in connector, characterized in that: The connector comprises a housing, at least one terminal and at least one wire. The terminal comprises a plug-in portion, a fixing portion and a connecting portion which are connected in sequence. The housing is integrally molded on at least part of the outer side of the fixing portion. The two ends of the shell have a plug-in area and a connection area respectively, the plug-in part is arranged in the plug-in area, and the connection part is arranged in the connection area; in the connection area, the wires and the terminals are arranged one by one, and the wires are welded and connected to the connection parts.

2. The connector according to claim 1, characterized in that: There are a plurality of terminals, and the plurality of terminals are arranged at intervals, and the housing is integrally injection-molded on the outside of the plurality of terminals.

3. The connector according to claim 1, characterized in that: At least part of the surface of the connecting portion is provided with knurling.

4. The connector according to claim 1, characterized in that: At least one locking protrusion is arranged on the outer side wall of the fixing portion.

5. The connector according to claim 1, characterized in that: The connecting portion is overlapped with the conducting wire and connected by ultrasonic welding to form a welding portion.

6. The connector according to claim 1, characterized in that: The connector also includes a sealing ring carrier, one end of which is provided with mounting holes corresponding to the number of the wires, the wires are passed through the mounting holes and are arranged in the sealing ring carrier, and the other end of the sealing ring carrier is sleeved on the outer periphery of the shell and is connected to the shell by snapping.

7. The connector according to claim 6, characterized in that: It also includes at least one sealing ring and at least one positioning member, wherein the positioning member is provided with a positioning hole corresponding to the wire, and after the positioning member and the sealing ring are sleeved on a portion of the outer circumference of the wire, the sealing ring enters the mounting hole, and the positioning member blocks the mounting hole and is clamped and connected with the sealing ring carrier.

8. The connector according to claim 7, characterized in that: An annular protrusion for blocking the sealing ring is arranged on the inner wall of the mounting hole close to one side of the housing.

9. The connector according to claim 5, characterized in that: At least the outer peripheral surface of the welding portion is covered with a double-layer heat shrink tube or coated with VE glue.

10. The connector according to claim 2, characterized in that: At least two adjacent connecting parts are integrally formed.

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