Electric connector

Abstract

The utility model discloses an electric connector, which comprises a connector shell, a first wire clamping spring, a second wire clamping spring, a first contact piece and a second contact piece, and is characterized in that the inner side walls of the connector shell are combined to form a first inner cavity and a second inner cavity; the first wire clamping spring and the first contact piece are arranged in the first inner cavity, and the first wire clamping spring and the first contact piece are combined to form a first wire plugging assembly with a first wire plugging hole; the second wire clamping spring and the second contact piece are arranged in the second inner cavity, and the second wire clamping spring and the second contact piece are combined to form a second wire plugging assembly with a second wire plugging hole. According to the utility model, the first wire plugging hole and the second wire plugging hole can be cooperatively connected with the lead to be connected, so that the lead can be effectively prevented from loosening, and the reliability of lead connection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connection devices, in particular to an electric connector. Background Art

[0002] Currently, multi-strand wires on the market are usually connected using cold joint connectors; wherein the multi-strand wires are formed by manually twisting multiple single-strand wires.

[0003] The cold joint connector is an accessory product used to achieve electrical connection. The existing cold joint connector usually includes a shell and a metal sleeve. The metal sleeve is arranged in the shell. After the multi-strand wires are introduced into the metal sleeve through the shell interface, they are crimped using pneumatic pliers. However, the pneumatic pliers crimping method has high requirements on the operation of employees, and it is easy for the crimping to be not in place, resulting in loose leads, and then poor contact or power-off problems of the whole machine, thereby reducing the safety performance of the whole machine.

[0004] Therefore, the existing connector has the problem of low connection reliability. Utility Model Content

[0005] The utility model aims to provide an electrical connector, aiming to solve the problem of low connection reliability of the existing connector.

[0006] In order to achieve the above-mentioned object, the technical solution adopted by the utility model is as follows: an electrical connector is provided, the electrical connector comprising: a connector housing, a first wire clamping spring, a second wire clamping spring, a first contact piece and a second contact piece, the inner side wall of the connector housing is combined to form a first inner cavity and a second inner cavity;

[0007] The first wire-clamping spring and the first contact piece are arranged in the first inner cavity, and the first wire-clamping spring and the first contact piece are combined to form a first wire-plugging assembly having a first wire-plugging hole; the second wire-clamping spring and the second contact piece are arranged in the second inner cavity, and the second wire-clamping spring and the second contact piece are combined to form a second wire-plugging assembly having a second wire-plugging hole.

[0008] Furthermore, the connector housing includes an upper cover and a base, and the upper cover and the base are detachably connected.

[0009] Furthermore, one end of the first clamping spring away from the upper cover is bent toward the first contact piece to form a first bent portion, and one end of the second clamping spring away from the upper cover is bent toward the second contact piece to form a second bent portion.

[0010] Furthermore, a bending direction of the first bending portion is opposite to a bending direction of the second bending portion.

[0011] Furthermore, buckle seats are correspondingly provided at both ends of the base, buckles are correspondingly provided at both ends of the upper cover, and the buckle seats are matched and connected with the buckles to lock the upper cover and the base.

[0012] Furthermore, recessed portions are correspondingly provided on both sides of the upper cover, and convex portions matching the recessed portions are correspondingly provided on both sides of the base.

[0013] Furthermore, the first contact sheet and the second contact sheet are both rectangular sheet structures.

[0014] Furthermore, a first connecting piece is provided at one end of the first contact piece close to the upper cover, a second connecting piece is provided at one end of the second contact piece close to the upper cover, and the upper cover is provided with a first connecting hole adapted to the first connecting piece and a second connecting hole adapted to the second connecting piece.

[0015] Furthermore, a partition is provided in the connector housing, and the partition divides the inner cavity of the connector housing into the first inner cavity and the second inner cavity.

[0016] Furthermore, the connector housing is a rectangular parallelepiped structure.

[0017] The utility model discloses an electrical connector, which includes: a connector housing, a first wire clamping spring, a second wire clamping spring, a first contact piece and a second contact piece, wherein the inner side wall of the connector housing is combined to form a first inner cavity and a second inner cavity; the first wire clamping spring and the first contact piece are arranged in the first inner cavity, and the first wire clamping spring and the first contact piece are combined to form a first wire plug assembly having a first wire plug hole; the second wire clamping spring and the second contact piece are arranged in the second inner cavity, and the second wire clamping spring and the second contact piece are combined to form a second wire plug assembly having a second wire plug hole. The first wire plug hole and the second wire plug hole in the utility model can both be matched and connected with the lead wire to be connected, which can effectively prevent the lead wire from loosening and improve the reliability of the lead wire connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 An exploded view of an electrical connector provided by an embodiment of the utility model;

[0020] Figure 2 A first schematic diagram of an electrical connector provided by an embodiment of the utility model;

[0021] Figure 3 A second schematic diagram of an electrical connector provided by an embodiment of the utility model;

[0022] Figure 4 A third schematic diagram of an electrical connector provided by an embodiment of the utility model;

[0023] Figure 5 A fourth schematic diagram of an electrical connector provided by an embodiment of the utility model;

[0024] Figure 6 An exploded view of a connector housing provided by an embodiment of the utility model;

[0025] Figure 7 A schematic diagram of a connector housing provided by an embodiment of the utility model;

[0026] Figure 8 A schematic diagram of the first part of the electrical connector provided by an embodiment of the utility model;

[0027] Fig. 9 A schematic diagram of the second part of the electrical connector provided by an embodiment of the utility model.

[0028] Among them, the reference numerals in the figures are as follows:

[0029] 10. Electrical connector; 110. Connector housing; 111. Upper cover; 112. Base; 113. Buckle seat; 114. Buckle; 115. Recess; 116. Protrusion; 117. First connecting hole; 118. Second connecting hole; 119. Partition; 210. First wire-clamping spring; 211. First bending portion; 220. Second wire-clamping spring; 221. Second bending portion; 310. First contact piece; 311. First connecting piece; 320. Second contact piece; 321. Second connecting piece; 410. First wire insertion hole; 420. Second wire insertion hole. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0032] It should also be understood that the terms used in the utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in the utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0033] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0034] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 , Figure 1 An exploded view of an electrical connector provided by an embodiment of the utility model; Figure 2 A first schematic diagram of an electrical connector provided by an embodiment of the utility model; Figure 3 A second schematic diagram of an electrical connector provided by an embodiment of the utility model; Figure 5 This is a fourth schematic diagram of an electrical connector provided by an embodiment of the present utility model. Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the utility model proposes an electrical connector 10, which includes: a connector housing 110, a first wire clamping spring 210, a second wire clamping spring 220, a first contact piece 310 and a second contact piece 320, the inner side walls of the connector housing 110 are combined to form a first inner cavity and a second inner cavity; the first wire clamping spring 210 and the first contact piece 310 are arranged in the first inner cavity, and the first wire clamping spring 210 and the first contact piece 310 are combined to form a first wire plug assembly having a first wire plug hole 410; the second wire clamping spring 220 and the second contact piece 320 are arranged in the second inner cavity, and the second wire clamping spring 220 and the second contact piece 320 are combined to form a second wire plug assembly having a second wire plug hole 420.

[0035] In this embodiment, the electrical connector 10 includes: a connector housing 110, a first wire clamping spring 210, a second wire clamping spring 220, a first contact piece 310 and a second contact piece 320, the inner side walls of the connector housing 110 are combined to form a first inner cavity and a second inner cavity; the first wire clamping spring 210 and the first contact piece 310 are arranged in the first inner cavity, the first wire clamping spring 210 and the first contact piece 310 are combined to form a first wire plug assembly, and the concave hole formed by the first wire plug assembly is the first wire plug hole 410; the second wire clamping spring 220 and the second contact piece 320 are arranged in the second inner cavity, the second wire clamping spring 220 and the second contact piece 320 are combined to form a second wire plug assembly, and the concave hole formed by the second wire plug assembly is the second wire plug hole 420; the first wire plug hole 410 and The first lead to be connected is matched and connected, and when the first lead to be connected is inserted into the first wire insertion hole 410, the first lead to be connected is fixedly crimped between the first wire clamping spring 210 and the first contact piece 310; the second wire insertion hole 420 is matched and connected with the second lead to be connected, and when the second lead to be connected is inserted into the second wire insertion hole 420, the second lead to be connected is fixedly crimped between the second wire clamping spring 220 and the second contact piece 320; the first wire insertion hole 410 and the second wire insertion hole 420 in the utility model can both be matched and connected with the lead to be connected, which can effectively prevent the lead from loosening and improve the reliability of the lead connection; wherein, the lead to be connected can be a multi-strand wire, and the multi-strand wire is formed by manually twisting a plurality of single-strand wires; specifically, the electrical connector 10 is suitable for 0.3mm 2 ~0.75mm 2 Lead wires with wire diameter specifications; among them, when the lead wire diameter specification is 0.3mm 2 When the lead wire pull-out force is 60-70N, the lead wire pull-out force is the force required to pull the lead wire out of the first plug hole 410 / the second plug hole 420 that is connected; when the lead wire diameter specification is 0.5mm 2 When the lead wire diameter is 0.75mm, the lead wire pull-out force is 80~90N; when the lead wire diameter is 0.75mm 2 When the lead wire is pulled out, the pull-out force is 90~100N (see Table 1 for details).

[0036] Table 1

[0037] Wire diameter specification <![CDATA[0.3mm 2 ]]> <![CDATA[0.5mm 2 ]]> <![CDATA[0.75mm 2 ]]> Pull-out force 60～70N 80～90N 90～100N

[0038] Furthermore, the thickness of the first wire clamping spring 210 and the second wire clamping spring 220 is 0.2 mm.

[0039] Furthermore, the inner side walls of the connector housing 110 are combined to form at least two inner cavities; the inner cavities are each provided with a wire retaining spring and a contact sheet, and the wire retaining spring and the contact sheet are combined to form a wire insertion hole.

[0040] In one embodiment, if Figure 1 As shown, the connector housing 110 includes an upper cover 111 and a base 112 , and the upper cover 111 and the base 112 are detachably connected.

[0041] In this embodiment, the connector housing 110 includes an upper cover 111 and a base 112, and the upper cover 111 and the base 112 are detachably connected; a positioning column is provided on an end face of the upper cover 111 away from the base 112, and the upper cover 111 can be connected to the circuit board through the positioning column to realize circuit board positioning.

[0042] In one embodiment, if Figure 1 , Figure 5 and Figure 8 As shown, one end of the first clamping spring 210 away from the upper cover 111 is bent toward the first contact piece 310 to form a first bending portion 211 , and one end of the second clamping spring 220 away from the upper cover 111 is bent toward the second contact piece 320 to form a second bending portion 221 .

[0043] In this embodiment, one end of the first wire clamping spring 210 away from the upper cover 111 is bent toward the first contact piece 310 to form a first bending portion 211, and one end of the second wire clamping spring 220 away from the upper cover 111 is bent toward the second contact piece 320 to form a second bending portion 221; the first wire insertion hole 410 is matched with the first lead to be connected, and when the first lead to be connected is inserted in the first wire insertion hole 410, the first lead to be connected is elastically crimped between the first bending portion 211 and the first contact piece 310; the second wire insertion hole 420 is matched with the second lead to be connected, and when the second lead to be connected is inserted in the second wire insertion hole 420, the second lead to be connected is elastically crimped between the second bending portion 221 and the second contact piece 320; the first wire insertion hole 410 and the second wire insertion hole 420 in the utility model can both be matched with the lead to be connected, which can effectively prevent the lead from loosening and improve the reliability of the lead connection.

[0044] In one embodiment, if Figure 1 and Figure 7 As shown, the bending direction of the first bending portion 211 is opposite to the bending direction of the second bending portion 221 .

[0045] In this embodiment, the bending direction of the first bending portion 211 is opposite to the bending direction of the second bending portion 221. Therefore, the first wire insertion hole 410 and the second wire insertion hole 420 are diagonally staggered to facilitate wiring in different directions between the circuit boards to be connected.

[0046] In one embodiment, if Figure 6 As shown, buckle seats 113 are correspondingly provided at both ends of the base 112 , buckles 114 are correspondingly provided at both ends of the upper cover 111 , and the buckle seats 113 are matched and connected with the buckles 114 to lock the upper cover 111 and the base 112 .

[0047] In this embodiment, buckle seats 113 are correspondingly provided at both ends of the base 112, and buckles 114 are correspondingly provided at both ends of the upper cover 111. The buckle seats 113 are matched with the buckles 114 to lock the upper cover 111 and the base 112; the end surface of the upper cover 111 that is not connected to the base 112 is connected to the circuit board to be connected.

[0048] In one embodiment, if Figure 1 As shown, recesses 115 are correspondingly disposed on both sides of the upper cover 111 , and protrusions 116 matched with the recesses 115 are correspondingly disposed on both sides of the base 112 .

[0049] In this embodiment, recesses 115 are correspondingly provided on both sides of the upper cover 111, and protrusions 116 matching the recesses 115 are correspondingly provided on both sides of the base 112. The recesses 115 and the protrusions 116 are matched and connected to achieve a positioning effect, which can effectively improve the assembly efficiency of the connector housing 110.

[0050] In one embodiment, if Figure 2 , Figure 3 and Fig. 9 As shown, the first contact piece 310 and the second contact piece 320 are both rectangular sheet structures.

[0051] In this embodiment, the first contact piece 310 and the second contact piece 320 are both rectangular sheet structures, and the first contact piece 310 and the second contact piece 320 are diagonally staggered and disposed in the connector housing 110 .

[0052] In one embodiment, if Figure 2 , Figure 4 and Fig. 9As shown, a first connecting piece 311 is provided at one end of the first contact piece 310 close to the upper cover 111, a second connecting piece 321 is provided at one end of the second contact piece 320 close to the upper cover 111, and the upper cover 111 is provided with a first connecting hole 117 adapted to the first connecting piece 311 and a second connecting hole 118 adapted to the second connecting piece 321.

[0053] In this embodiment, a first connecting piece 311 is provided at one end of the first contact piece 310 close to the upper cover 111, and a second connecting piece 321 is provided at one end of the second contact piece 320 close to the upper cover 111. The upper cover 111 is provided with a first connecting hole 117 adapted to the first connecting piece 311 and a second connecting hole 118 adapted to the second connecting piece 321. The first connecting piece 311 passes through the first connecting hole 117 to be electrically connected to the circuit board to be connected, and the second connecting piece 321 passes through the second connecting hole 118 to be electrically connected to the circuit board to be connected.

[0054] In one embodiment, if Figure 1 , Figure 2 and Figure 5 As shown, a partition 119 is disposed in the connector housing 110 , and the partition 119 divides the inner cavity of the connector housing 110 into the first inner cavity and the second inner cavity.

[0055] In this embodiment, a partition 119 is provided in the connector housing 110, and the partition 119 divides the inner cavity of the connector housing 110 into the first inner cavity and the second inner cavity; the first wire clamping spring 210 and the first contact piece 310 are arranged in the first inner cavity, and the first wire clamping spring 210 and the first contact piece 310 are combined to form a first wire plug assembly, and the concave hole formed by the first wire plug assembly is the first wire plug hole 410; the second wire clamping spring 220 and the second contact piece 320 are arranged in the second inner cavity, and the second wire clamping spring 220 and the second contact piece 320 are combined to form a second wire plug assembly, and the concave hole formed by the second wire plug assembly is the second wire plug hole 420; the first wire plug hole 410 and the second wire plug hole 420 in the utility model can both be matched with the lead to be connected, which can effectively prevent the lead from loosening and improve the reliability of the lead connection.

[0056] In one embodiment, if Figure 1 and Figure 2 As shown, the connector housing 110 is a rectangular parallelepiped structure.

[0057] In this embodiment, the connector housing 110 is a rectangular structure, and the connector housing 110 includes an upper cover 111 and a base 112. Positioning components that are compatible with the buckle 114 are correspondingly arranged at both ends of the base 112; the positioning component includes a first positioning member and a second positioning member, and the buckle 114 is arranged between the first positioning member and the second positioning member to achieve a positioning effect, which can effectively improve the assembly efficiency of the connector housing 110.

[0058] The utility model discloses an electrical connector, which includes: a connector housing, a first wire clamping spring, a second wire clamping spring, a first contact piece and a second contact piece, wherein the inner side wall of the connector housing is combined to form a first inner cavity and a second inner cavity; the first wire clamping spring and the first contact piece are arranged in the first inner cavity, and the first wire clamping spring and the first contact piece are combined to form a first wire plug assembly having a first wire plug hole; the second wire clamping spring and the second contact piece are arranged in the second inner cavity, and the second wire clamping spring and the second contact piece are combined to form a second wire plug assembly having a second wire plug hole. The first wire plug hole and the second wire plug hole in the utility model can both be matched and connected with the lead wire to be connected, which can effectively prevent the lead wire from loosening and improve the reliability of the lead wire connection.

[0059] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An electrical connector, characterized in that: The electrical connector comprises: a connector housing, a first wire clamping spring, a second wire clamping spring, a first contact piece and a second contact piece, and the inner side wall of the connector housing is combined to form a first inner cavity and a second inner cavity; The first wire-clamping spring and the first contact piece are arranged in the first inner cavity, and the first wire-clamping spring and the first contact piece are combined to form a first wire-plugging assembly having a first wire-plugging hole; the second wire-clamping spring and the second contact piece are arranged in the second inner cavity, and the second wire-clamping spring and the second contact piece are combined to form a second wire-plugging assembly having a second wire-plugging hole.

2. The electrical connector according to claim 1, characterized in that: The connector housing comprises an upper cover and a base, and the upper cover and the base are detachably connected.

3. The electrical connector according to claim 2, characterized in that: One end of the first clamping spring away from the upper cover is bent toward the first contact piece to form a first bending portion, and one end of the second clamping spring away from the upper cover is bent toward the second contact piece to form a second bending portion.

4. The electrical connector according to claim 3, characterized in that: A bending direction of the first bending portion is opposite to a bending direction of the second bending portion.

5. The electrical connector according to claim 2, characterized in that: Buckle seats are correspondingly arranged at both ends of the base, buckles are correspondingly arranged at both ends of the upper cover, and the buckle seats are matched and connected with the buckles to lock the upper cover and the base.

6. The electrical connector according to claim 2, characterized in that: Concave parts are correspondingly arranged on both sides of the upper cover, and convex parts matching with the concave parts are correspondingly arranged on both sides of the base.

7. The electrical connector according to claim 1, characterized in that: The first contact piece and the second contact piece are both rectangular sheet structures.

8. The electrical connector according to claim 2, characterized in that: A first connecting piece is arranged at one end of the first contact piece close to the upper cover, a second connecting piece is arranged at one end of the second contact piece close to the upper cover, and the upper cover is provided with a first connecting hole adapted to the first connecting piece and a second connecting hole adapted to the second connecting piece.

9. The electrical connector according to claim 1, characterized in that: A partition is disposed in the connector housing, and the partition divides the inner cavity of the connector housing into the first inner cavity and the second inner cavity.

10. The electrical connector according to claim 1, characterized in that: The connector housing is a rectangular parallelepiped structure.

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