Small connector

Abstract

The utility model relates to a small-sized connector. The small-sized connector comprises a female terminal and a male terminal, a limiting piece is arranged on the female terminal, an inserting groove for inserting the male terminal is formed between the limiting piece and the female terminal, and a locking piece is arranged on the inner side wall of the inserting groove; the male terminal is provided with a limiting groove, when the male terminal is inserted into the plugging groove, the locking piece is inserted into and abuts against the limiting groove, and the locking piece is used for limiting the male terminal to be separated from the plugging groove; the female terminal is further provided with an unlocking piece, the unlocking piece and the locking piece are oppositely arranged, and the male terminal is tightly pressed in the inserting groove through the unlocking piece. According to the invention, the stability and firmness of mutual plugging of the female terminal and the male terminal are ensured, the anti-drop performance of the female terminal and the male terminal is enhanced, and the effect of effectively preventing the female terminal and the male terminal from dropping after assembly is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of connectors, and in particular to a small connector. Background Art

[0002] At present, miniature connectors generally refer to miniaturized components used for physical and electrical connections within or between electronic devices. They play a vital role in modern electronic devices, because with the development of technology, devices tend to be miniaturized and lightweight, and the requirements for connectors are also increasing.

[0003] As an important part of the vehicle, automobile glass not only provides vision protection for passengers, but also plays a key role in the safety and comfort of the vehicle. The windshields of most vehicles are usually laminated glass and equipped with electric heating wires, which can be used for rapid defrosting and defogging of the glass. To this end, it is necessary to set up corresponding circuits around the automobile glass to meet the above requirements, and it is also necessary to set up multiple types of connectors on the automobile glass to realize the signal connection between the wires.

[0004] Commonly used automotive glass connectors mainly include male terminals and female terminals. Since the space in the welding area of ​​automotive glass electrical components is relatively small, a small connector is needed to achieve signal connection between electrical components. However, there is a connector on the market that, when the female terminal and the male terminal are plugged and fixed to each other, they are easily separated when pulled by external force due to the plug-in structure of the two, and their connection reliability is poor. Utility Model Content

[0005] The present application provides a small connector with a compact structure, capable of meeting installation requirements in a narrow welding area, and providing a more stable and reliable connection.

[0006] The present application provides a small connector that adopts the following technical solution:

[0007] A small connector includes a female terminal and a male terminal; a limiting piece is provided on the female terminal, a plug-in slot for inserting the male terminal is formed between the limiting piece and the female terminal, and a locking piece is provided on the inner side wall of the plug-in slot; a limiting groove is provided on the male terminal, and when the male terminal is inserted into the plug-in slot, the locking piece is inserted into and pressed against the limiting groove, and the locking piece is used to limit the male terminal from detaching from the plug-in slot; an unlocking piece is also provided on the female terminal, the unlocking piece and the locking piece are arranged opposite to each other, and the unlocking piece presses the male terminal tightly into the plug-in slot.

[0008] Preferably, the unlocking member includes an extrusion portion and an unlocking portion, one end of the extrusion portion is arranged on the female terminal, and the other end of the extrusion portion is integrally formed with the unlocking portion; the extrusion portion is located in the plug-in slot, and the extrusion portion is inclined in the direction close to the limiting member; the unlocking portion is located outside the plug-in slot, and an active cavity is formed between the side of the extrusion portion facing away from the limiting member and the female terminal.

[0009] Preferably, a clearance hole is formed through the limiting member, and one end of the locking member is arranged on the inner side wall of the clearance hole.

[0010] Preferably, the male terminal includes a folded plug-in board, and the limiting groove is arranged on the plug-in board; a guiding slope is inclinedly arranged at the end of the plug-in board, and the guiding slope is used to guide the locking member to be inserted into the limiting groove.

[0011] Preferably, a welding sheet is provided at one end of the plug board away from the guiding inclined surface, and the plug board is arranged on the glass through the welding sheet.

[0012] Preferably, a rounded corner is formed at the connection between the welding sheet and the plug board.

[0013] Preferably, a crimping piece is provided on the female terminal, and the crimping piece is used to press and fix the electric wire on the female terminal.

[0014] In summary, the present application includes at least one of the following beneficial technical effects:

[0015] The locking member and the limiting groove are plugged in and matched with each other, which can effectively limit the male terminal from being disengaged from the plug-in groove, realize the self-locking of the male terminal, ensure the stability and reliability of the female terminal and the male terminal when they are plugged in each other, enhance the anti-dropping performance of the two, and effectively prevent the two from falling out after assembly;

[0016] When the male terminal needs to be unlocked, the unlocking part is pressed to drive the extrusion part to move closer to the active cavity. As the gap between the extrusion part and the locking piece gradually increases, the male terminal can be smoothly pulled out of the plug slot. This facilitates the plugging and unplugging of the male terminal and ensures the connection strength when the female terminal and the male terminal are plugged in.

[0017] The connection between the welding piece and the plug-in board is formed with a rounded corner, which can reduce the direct contact between the connection between the two and the glass, thereby reducing the wear on the glass surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure when the female terminal and the male terminal of the present application are plugged into each other;

[0019] Figure 2 yes Figure 1 Schematic diagram of the local structure explosion;

[0020] Figure 3 It is a schematic diagram of a partial structural cross section highlighting the interior of the connector slot.

[0021] Explanation of the reference numerals: 1. female terminal; 2. male terminal; 20. limiting groove; 21. plug-in board; 22. guide slope; 3. limiting member; 30. clearance hole; 4. plug-in slot; 40. locking member; 5. unlocking member; 50. extrusion part; 51. unlocking part; 52. movable cavity; 6. welding piece; 60. fillet; 7. crimping member. DETAILED DESCRIPTION

[0022] The present application is further described in detail below in conjunction with the accompanying drawings.

[0023] The embodiment of the present application discloses a small connector.

[0024] Reference Figure 1 , Figure 2 The small connector includes a female terminal 1 and a male terminal 2, both of which are made of conductive materials. A limiter 3 is bent on one side of the female terminal 1, and a plug-in slot 4 for inserting the male terminal 2 is formed between the limiter 3 and the female terminal 1. Two clearance holes 30 are penetrated on the outer wall of the limiter 3 facing the female terminal 1, and the two clearance holes 30 are symmetrically arranged. A locking member 40 is integrally formed on the inner wall of the clearance hole 30 near the bottom opening of the plug-in slot 4, and the locking member 40 is bent in the direction close to the female terminal 1 and extends into the plug-in slot 4.

[0025] like Figure 2 , Figure 3 As shown, the male terminal 2 includes a folded plug-in plate 21, which is convenient for stamping production using finished metal sheets / strips by folding. Limiting grooves 20 are provided on the outer walls of the plug-in plate 21 that are away from each other. When the plug-in plate 21 is inserted into the plug-in slot 4 from the bottom opening of the plug-in slot 4, the locking member 40 will be inserted and pressed against the relative limiting groove 20. Through the mutual plug-in cooperation of the locking member 40 and the limiting groove 20, the male terminal 2 can be effectively restricted from being disengaged from the plug-in slot 4, and the self-locking of the male terminal 2 is realized, ensuring the stability and reliability of the female terminal 1 and the male terminal 2 when they are plugged into each other, enhancing the anti-slip performance of the two, and effectively preventing the two from slipping out after assembly.

[0026] like Figure 2 , Figure 3As shown, the female terminal 1 is also provided with an unlocking member 5, which is arranged opposite to the locking member 40, and is used to press the male terminal 2 into the plug-in slot 4. The unlocking member 5 includes an extrusion portion 50 and an unlocking portion 51. The bottom of the extrusion portion 50 is integrally formed on the female terminal 1, and the top of the extrusion portion 50 is integrally formed with the unlocking portion 51. The extrusion portion 50 is located in the plug-in slot 4, and the length of the extrusion portion 50 is inclined in a direction gradually approaching the limiter 3. The unlocking portion 51 is located outside the plug-in slot 4, and an active cavity 52 is formed between the side of the extrusion portion 50 that is away from the limiter 3 and the female terminal 1.

[0027] When the male terminal 2 is gradually inserted into the plug-in slot 4, due to the presence of the active cavity 52, the male terminal 2 will push the extrusion part 50 to gradually move in the direction close to the active cavity 52, and at the same time, the extrusion part 50 will also apply reverse pressure to the male terminal 2. When the locking member 40 is successfully inserted and pressed into the limiting groove 20, the male terminal 2 will be locked in the plug-in slot 4 under the common limit of the locking members 40 and the extrusion part 50 on both sides. When it is necessary to release the lock of the male terminal 2, the extrusion part 50 is driven to move in the direction close to the active cavity 52 by pressing the unlocking part 51. As the gap between the extrusion part 50 and the locking member 40 gradually increases, the male terminal 2 can be smoothly pulled out of the plug-in slot 4. This facilitates the plugging and unplugging of the male terminal 2, while ensuring the connection strength when the female terminal 1 and the male terminal 2 are plugged in.

[0028] like Figure 2 , Figure 3 As shown, the end of the plug board 21 is provided with a guide slope 22 in an inclined manner, and the guide slope 22 is symmetrically arranged on the outer side walls of the plug board 21 that are away from each other. The guide slope 22 is used to guide the locking member 40 to be smoothly inserted into the limiting groove 20.

[0029] like Figure 2 , Figure 3 As shown, a welding piece 6 is fixedly provided at one end of the plug board 21 away from the guide inclined surface 22. The shape of the welding piece 6 can be square or circular, or any other plane shape. The plug board 21 is fixedly provided on the glass through the welding piece 6. A fillet 60 is formed at the connection between the welding piece 6 and the plug board 21. The fillet 60 can reduce the direct contact between the connection between the two and the glass, thereby reducing the wear on the glass surface.

[0030] like Figure 1 As shown, a crimping piece 7 is integrally formed on the female terminal 1, and the crimping piece 7 is used to press and fix the wire on the female terminal 1. The connection between the female terminal 1 and the wire can also be fixed by welding.

[0031] The implementation principle is: when the plug board 21 is inserted into the plug slot 4 from the bottom opening of the plug slot 4, the locking member 40 will be inserted and pressed against the relative limiting groove 20. Through the mutual plug-in cooperation of the locking member 40 and the limiting groove 20, the male terminal 2 can be effectively restricted from being disengaged from the plug slot 4, and the self-locking of the male terminal 2 is realized, ensuring the stability and reliability of the female terminal 1 and the male terminal 2 when plugged into each other, enhancing the anti-slip performance of the two, and effectively preventing the two from being disengaged after assembly.

[0032] When the male terminal 2 is gradually inserted into the plug-in slot 4, due to the presence of the active cavity 52, the male terminal 2 will push the extrusion part 50 to gradually move in the direction close to the active cavity 52, and at the same time, the extrusion part 50 will also apply reverse pressure to the male terminal 2. When the locking member 40 is successfully inserted and pressed into the limiting groove 20, the male terminal 2 will be locked in the plug-in slot 4 under the common limit of the locking members 40 and the extrusion part 50 on both sides. When it is necessary to release the lock of the male terminal 2, the extrusion part 50 is driven to move in the direction close to the active cavity 52 by pressing the unlocking part 51. As the gap between the extrusion part 50 and the locking member 40 gradually increases, the male terminal 2 can be smoothly pulled out of the plug-in slot 4. This facilitates the plugging and unplugging of the male terminal 2, while ensuring the connection strength when the female terminal 1 and the male terminal 2 are plugged in.

[0033] The plug board 21 is fixed on the glass by the welding piece 6. A fillet 60 is formed at the connection between the welding piece 6 and the plug board 21, and the fillet 60 can reduce the direct contact between the connection between the two and the glass, and reduce the wear on the glass surface. The structure is compact and can meet the installation requirements in a narrow welding area.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A small connector, comprising a female terminal (1) and a male terminal (2); characterized in that: The female terminal (1) is provided with a limit piece (3), a plug-in slot (4) for inserting the male terminal (2) is formed between the limit piece (3) and the female terminal (1), and a locking piece (40) is provided on the inner side wall of the plug-in slot (4); the male terminal (2) is provided with a limit groove (20), when the male terminal (2) is inserted into the plug-in slot (4), the locking piece (40) is inserted into and pressed against the limit groove (20), and the locking piece (40) is used to limit the male terminal (2) from being separated from the plug-in slot (4); the female terminal (1) is also provided with an unlocking piece (5), the unlocking piece (5) and the locking piece (40) are arranged opposite to each other, and the unlocking piece (5) presses the male terminal (2) into the plug-in slot (4).

2. The small connector according to claim 1, characterized in that: The unlocking member (5) comprises a pressing portion (50) and an unlocking portion (51); one end of the pressing portion (50) is arranged on the female terminal (1), and the other end of the pressing portion (50) is integrally formed with the unlocking portion (51); the pressing portion (50) is located in the plug-in slot (4), and the pressing portion (50) is inclined in a direction close to the limiting member (3); the unlocking portion (51) is located outside the plug-in slot (4), and an active cavity (52) is formed between the side of the pressing portion (50) facing away from the limiting member (3) and the female terminal (1).

3. The small connector according to claim 2, characterized in that: The limiting member (3) is provided with a clearance hole (30) extending therethrough, and one end of the locking member (40) is arranged on the inner side wall of the clearance hole (30).

4. The small connector according to claim 1, characterized in that: The male terminal (2) comprises a folded plug-in plate (21), the limiting groove (20) being arranged on the plug-in plate (21); a guide slope (22) is arranged at an angle at the end of the plug-in plate (21), the guide slope (22) being used to guide the locking member (40) to be inserted into the limiting groove (20).

5. The small connector according to claim 4, characterized in that: A welding sheet (6) is provided at one end of the plug-in board (21) away from the guiding inclined surface (22), and the plug-in board (21) is arranged on the glass via the welding sheet (6).

6. The small connector according to claim 5, characterized in that: A rounded corner (60) is formed at the connection between the welding sheet (6) and the plug-in board (21).

7. The small connector according to claim 1, characterized in that: The female terminal (1) is provided with a crimping piece (7), and the crimping piece (7) is used to press and fix the electric wire on the female terminal (1).

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