Connector plug stamping terminal fixing structure

Abstract

The utility model relates to the technical field of electric connectors, in particular to a connector plug stamping terminal fixing structure, which comprises a U-shaped metal elastic sheet, a terminal board and a connector shell, the metal elastic sheet is arranged in the connector shell, the terminal board axially penetrates into the connector shell, and the terminal board is arranged in the connector shell. The terminal board is inserted into the metal elastic sheet, the metal elastic sheet is at least provided with one locking arm which is stripped from the metal elastic sheet and is folded inwards by taking a folded edge as a boundary line, and the locking arm is clamped into a locking clamping groove formed in the terminal board so as to limit the terminal board from being pulled out of the connector shell. According to the utility model, the terminal board is fixed through the metal elastic sheet and then is contacted with the socket reed, so that the influence of ultrasonic welding on the reed when a plug end is wired is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a connector plug stamping terminal fixing structure. Background Art

[0002] Most existing connector plugs on the market are in the form of female terminals. There are springs on both sides of the female terminals that can be clamped on the plastic parts to fix the terminals. When ultrasonic welding is performed on the female terminals and the wiring of this type of connector, the spring in the female terminal may separate from the terminal body, causing the spring and terminal to loosen and cause poor contact. Utility Model Content

[0003] The utility model aims to solve the above-mentioned defects and provides a connector plug stamping terminal fixing structure.

[0004] In order to overcome the defects existing in the background technology, the technical solution adopted by the present invention to solve its technical problems is: a connector plug stamping terminal fixing structure, including a U-shaped metal spring, a terminal plate and a connector shell, the metal spring is arranged in the connector shell, the terminal plate is axially inserted into the connector shell, and the terminal plate is inserted into the metal spring, and the metal spring is provided with at least one locking arm peeled off from the metal spring and folded inward with the folded edge as the boundary line, the locking arm is stuck in the locking slot opened on the terminal plate to limit the terminal plate from being pulled out of the connector shell.

[0005] Further improvements include providing a plug-in cavity for plugging in and a wiring cavity for wiring in the connector shell, providing a plug-in channel in the connector shell that connects the plug-in cavity with the wiring cavity and is used to plug in the terminal board, providing a spring groove for embedding a metal spring and a terminal groove for embedding a side of the terminal board on the bottom wall of the plug-in cavity, the spring groove is connected to the terminal groove, and the terminal board is arranged perpendicular to the open end direction of the plug-in cavity.

[0006] A further improvement includes providing an open window on the metal spring, wherein a barbed protrusion provided on the inner side wall of the window matches and hooks with a hook groove provided in the spring groove, thereby restricting the metal spring from being pulled out of the spring groove.

[0007] A further improvement includes opening two windows on the metal spring so that an insert is formed between the two windows, and the barbed protrusions are located on both sides of the insert.

[0008] A further improvement includes providing a limiting protrusion on the side of the terminal board for limiting the position, and the limiting protrusion is located in the wiring cavity.

[0009] A further improvement includes providing a bending portion 1 on the terminal board that is suddenly formed to one side, and the bending portion 1 is located in the wiring cavity.

[0010] A further improvement includes providing a guiding slope on the front end of the terminal plate within the terminal embedding groove for guiding.

[0011] Further improvements include a limit column connected to the bottom wall of the plug-in cavity that matches and fits with the front end of the terminal board, and an axial column connected between the limit column and the inner wall of the plug-in cavity that matches and fits with the side of the terminal board.

[0012] A further improvement includes providing support columns in parallel and in close contact on both sides of the terminal board, wherein one end of the support column is connected to the axial column and the other end is connected to the bottom wall of the plug-in cavity.

[0013] A further improvement includes providing the metal spring with a second bent portion formed inwardly in a sudden change.

[0014] The beneficial effects of the present invention are as follows: the plug in the present design adopts the form of a male terminal, specifically a terminal board, which is fixed with a metal spring and contacts the reed of the socket, thereby solving the problem of the influence of ultrasonic welding on the reed when the plug end is wired; the metal spring is used to fix the terminal board, and the metal has little creep at high temperature, is not easy to deform, and can provide continuous high-strength holding force. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is the axonometric Figure 1 ;

[0017] Figure 2 This is the axonometric section of the utility model Figure 1 ;

[0018] Figure 3 This is the axonometric section of the utility model Figure 2 ;

[0019] Figure 4 This is an axial side view of the terminal board in the utility model;

[0020] Figure 5 This is an axial side view of the metal dome in the present invention;

[0021] In the figure, 1-connector housing, 2-terminal board, 3-metal spring, 101-support column, 102-axial column, 103-spring embedding groove, 104-limiting column, 105-plug-in cavity, 106-hook groove, 107-plug-in channel, 108-wiring cavity, 109-terminal embedding groove, 201-bending part 1, 202-limiting protrusion, 203-locking slot, 204-guide slope, 301-locking arm, 302-folded edge, 303-bending part 2, 304-window, 305-insertion piece, 306-barbed protrusion. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of them. The embodiments of the basic utility model and all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present utility model.

[0023] like Figure 1 、 Figure 2 and Figure 3 As shown, a connector plug stamping terminal fixing structure includes a U-shaped metal spring 3, a terminal board 2 and a connector shell 1, the metal spring 3 is arranged in the connector shell 1, the terminal board 2 is axially inserted into the connector shell 1, and the terminal board 2 is inserted into the metal spring 3, and the metal spring 3 is provided with at least one locking arm 301 peeled off from the metal spring 3 and folded inward with the folded edge 302 as the boundary line. Further preferably, two locking arms 301 are provided and symmetrically arranged on the metal spring 3, and the locking arm 301 is clamped into the locking slot 203 opened on the terminal board 2 to limit the terminal board 2 from being pulled out of the connector shell 1.

[0024] In this embodiment, a plug-in cavity 105 for plugging and a wiring cavity 108 for wiring are provided in the connector housing 1. A plug-in channel 107 is provided in the connector housing 1 to connect the plug-in cavity 105 with the wiring cavity 108 and to plug in the terminal board 2. A spring slot 103 for embedding a metal spring 3 and a terminal slot 109 for embedding a side of the terminal board 2 are provided on the bottom wall of the plug-in cavity 105. The spring slot 103 is connected to the terminal slot 109, so that the locking arm 301 can be clamped into the locking slot 203 after the terminal board 2 is inserted between the metal springs 3. The terminal board 2 is vertically arranged in the direction of the open end of the plug-in cavity 105, so that after the plug-in cavity 105 is plugged in, the spring can be clamped on the surface of the terminal board 2. This design can leave a certain gap between the metal spring 3 and the terminal board 2. The terminal board 2 can be disassembled by a pick to prevent incorrect cable insertion when using a multi-core connector, which is convenient for subsequent repair.

[0025] In this embodiment, Figure 5 As shown, an open window 304 is provided on the metal spring 3, and a barbed protrusion 306 provided on the inner side wall of the window 304 matches and hooks with the hook groove 106 provided in the spring embedding groove 103, thereby limiting the metal spring 3 from being pulled out from the spring embedding groove 103, thereby ensuring the stability and reliability of the metal spring 3 after installation, and preventing the metal spring 3 from loosening after installation. In a further embodiment, two windows 304 are provided on the metal spring 3 so that an insert 305 is formed between the two windows 304, and the barbed protrusion 306 is located on both sides of the insert 305.

[0026] In this embodiment, Figure 4 As shown, a limiting protrusion 202 for limiting the position is provided on the side of the terminal board 2, and the limiting protrusion 202 is located in the wiring cavity 108. The limiting protrusion 202 is used to press against the inner wall of the wiring cavity 108 and can cooperate with the locking arm 301 to limit the terminal board 2, thereby limiting the axial movement of the terminal board 2 along the connector housing 1.

[0027] In this embodiment, Figure 4 As shown, the terminal board 2 is provided with a bending portion 201 that is suddenly formed to one side. The bending portion 201 is located in the wiring cavity 108. The bending portion 201 can be used to axially limit the wiring to ensure the installation position of the wiring.

[0028] In this embodiment, Figure 4 As shown, a guiding slope 204 for guiding is provided on the front end portion of the terminal board 2 in the terminal embedding groove 109. The guiding slope 204 facilitates the insertion of the terminal board 2 into the terminal embedding groove 109 and facilitates the assembly of the male terminal into place.

[0029] In this embodiment, Figure 1 and Figure 2 As shown, a limiting column 104 that matches and fits with the front end of the terminal board 2 is connected to the bottom wall of the plug-in cavity 105, and an axial column 102 that matches and fits with the side of the terminal board 2 is connected between the limiting column 104 and the inner wall of the plug-in cavity 105. The above embodiment is adopted to ensure the stability of the terminal board 2 after plugging and installation, and to avoid the spring sheet driving the terminal board 2 to move when the spring sheet is pulled out. In a further embodiment, support columns 101 are arranged in parallel on both sides of the terminal board 2, and one end of the support column 101 is connected to the axial column 102 and the other end is connected to the bottom wall of the plug-in cavity 105.

[0030] In this embodiment, in order to improve the stability of the metal spring 3 after installation, Figure 5 As shown, the metal spring 3 is provided with a second bending portion 303 that is suddenly formed inward. In a further embodiment, two second bending portions 303 are provided and are symmetrically arranged.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A connector plug stamping terminal fixing structure, characterized in that: The invention comprises a metal spring (3) with a U-shaped structure, a terminal plate (2) and a connector housing (1), wherein the metal spring (3) is arranged in the connector housing (1), the terminal plate (2) is axially inserted into the connector housing (1), and the terminal plate (2) is inserted into the metal spring (3), and the metal spring (3) is provided with at least one locking arm (301) which is peeled off from the metal spring (3) and folded inward with a folded edge (302) as a boundary line, and the locking arm (301) is inserted into a locking slot (203) provided on the terminal plate (2) to restrict the terminal plate (2) from being pulled out of the connector housing (1).

2. A connector plug stamping terminal fixing structure according to claim 1, characterized in that: The connector housing (1) is provided with a plug-in cavity (105) for plugging in and a wiring cavity (108) for wiring. The connector housing (1) is provided with a plug-in channel (107) for connecting the plug-in cavity (105) with the wiring cavity (108) and for plugging in the terminal board (2). The bottom wall of the plug-in cavity (105) is provided with a spring inserting groove (103) for inserting a metal spring (3) and a terminal inserting groove (109) for inserting a side of the terminal board (2). The spring inserting groove (103) is connected to the terminal inserting groove (109). The terminal board (2) is arranged perpendicular to the opening end of the plug-in cavity (105).

3. A connector plug stamping terminal fixing structure according to claim 2, characterized in that: An open window (304) is provided on the metal spring (3), and a barbed protrusion (306) provided on the inner side wall of the window (304) matches and hooks with a hook groove (106) provided in the spring groove (103), thereby restricting the metal spring (3) from being pulled out of the spring groove (103).

4. A connector plug stamping terminal fixing structure according to claim 3, characterized in that: Two windows (304) are provided on the metal spring (3), so that an insert (305) is formed between the two windows (304), and the barbed protrusions (306) are located on both sides of the insert (305).

5. The connector plug stamping terminal fixing structure according to claim 2, characterized in that: A limiting protrusion (202) for limiting position is provided on the side of the terminal board (2), and the limiting protrusion (202) is located in the wiring cavity (108).

6. A connector plug stamping terminal fixing structure according to claim 2 or 5, characterized in that: The terminal board (2) is provided with a bending portion (201) that is suddenly formed toward one side, and the bending portion (201) is located in the wiring cavity (108).

7. A connector plug stamping terminal fixing structure according to claim 2 or 5, characterized in that: A guiding inclined surface (204) for guiding is provided on the front end portion of the terminal plate (2) located in the terminal embedding groove (109).

8. The connector plug stamping terminal fixing structure according to claim 2, characterized in that: A limiting column (104) matching and fitting with the front end of the terminal board (2) is connected to the bottom wall of the plug-in cavity (105), and an axial column (102) matching and fitting with the side of the terminal board (2) is connected between the limiting column (104) and the inner wall of the plug-in cavity (105).

9. A connector plug stamping terminal fixing structure according to claim 8, characterized in that: Support columns (101) are arranged parallel to and in contact with each other on both sides of the terminal board (2); one end of the support column (101) is connected to the axial column (102), and the other end is connected to the bottom wall of the plug cavity (105).

10. The connector plug stamping terminal fixing structure according to claim 1, characterized in that: The metal spring (3) is provided with a second bending portion (303) formed by a sudden inward change.

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