Clamping structure of board end connector

Abstract

The utility model discloses a clamping structure of a board end connector, which comprises a connector body, the front end of the connector body is provided with a plug hole, the connector body is also provided with a limiting part, a first elastic arm and a second elastic arm, and the first elastic arm and the second elastic arm are oppositely arranged on two sides of the connector body. The first elastic arm obliquely extends upwards from front to back, the second elastic arm obliquely extends downwards from front to back, a plurality of first teeth are arranged on one side, far away from the connector body, of the first elastic arm, and a plurality of second teeth are arranged on one side, far away from the connector body, of the second elastic arm. The limiting part abuts against the installation piece to limit the connector body to move backwards, the first teeth and the second teeth are clamped with the edge of the installation hole to limit the connector body to move forwards, clamping connection of the connector body and the installation piece is achieved in a clamping connection mode, the connection structure is simplified, assembly is more convenient, and cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connectors, and particularly relates to a clamping structure of a board-end connector. Background Art

[0002] A connector generally refers to an electrical connector with a plugging function, which is mainly used for current or signal transmission. A connector generally includes a connector body, a plugging hole provided at the front end of the connector body, and a wire harness connected to the rear end of the connector body. A board-end connector is a type of connector. During assembly, the connector body is first inserted into an installation hole on an installation part (such as a sheet metal part) so that the plugging hole is exposed outside the installation hole, and then the connector body is fixed to the installation part with screws.

[0003] However, the screw connection method results in a complex connection structure between the connector body and the installation part, inconvenient assembly, and high cost. Summary of the Utility Model

[0004] Aiming at the deficiencies existing in the prior art, the utility model provides a clamping structure of a board-end connector, which realizes the clamping connection between the connector body and the installation part by a clamping method, simplifies the connection structure, is more convenient for assembly, and has a low cost.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] A clamping structure of a board-end connector includes a connector body. A plugging hole is provided at the front end of the connector body. The connector body is also provided with a limiting part, a first elastic arm, and a second elastic arm. The first elastic arm and the second elastic arm are oppositely arranged on both sides of the connector body. The first elastic arm extends obliquely upward from front to back, and the second elastic arm extends obliquely downward from front to back. A plurality of first teeth are arranged on the side of the first elastic arm away from the connector body along the extending direction of the first elastic arm, and a plurality of second teeth are arranged on the side of the second elastic arm away from the connector body along the extending direction of the second elastic arm. During assembly, the connector body is inserted backward into an installation hole on an installation part, and the limiting part abuts against the installation part to limit the backward movement of the connector body, and both the first teeth and the second teeth are clamped with the edge of the installation hole to limit the forward movement of the connector body.

[0007] By providing a limiting portion, a first elastic arm, and a second elastic arm on the connector body, the first elastic arm and the second elastic arm are oppositely arranged on both sides of the connector body. The first elastic arm extends obliquely upward from front to back, and the second elastic arm extends obliquely downward from front to back. A number of first teeth are provided on the side of the first elastic arm away from the connector body, and a number of second teeth are provided on the side of the second elastic arm away from the connector body. During assembly, the connector body is inserted backward into the mounting hole on the mounting member, and the limiting portion abuts against the mounting member to limit the backward movement of the connector body. The first teeth on the first elastic arm and the first teeth on the second elastic arm are both clamped with the edge of the mounting hole to limit the forward movement of the connector body. Thus, the connector body is clamped with the mounting member by a clamping method, simplifying the connection structure, making assembly more convenient, and having a low cost.

[0008] As a preferred solution, the first elastic arm is connected to the connector body through a third elastic arm, and the second elastic arm is connected to the connector body through a fourth elastic arm.

[0009] As a preferred solution, the third elastic arm extends obliquely downward from front to back, the fourth elastic arm extends obliquely upward from front to back, the side surfaces of the third elastic arm and the first elastic arm away from the connector body are connected, and the side surfaces of the fourth elastic arm and the second elastic arm away from the connector body are connected.

[0010] As a preferred solution, the angle α between the third elastic arm and the horizontal plane and the angle α between the fourth elastic arm and the horizontal plane are both 10 degrees - 40 degrees.

[0011] As a preferred solution, the length L1 of the third elastic arm and the fourth elastic arm is ≥10 mm.

[0012] As a preferred solution, the angle β between the first elastic arm and the horizontal plane and the angle β between the second elastic arm and the horizontal plane are both 5 degrees - 15 degrees.

[0013] As a preferred solution, the length L2 of the first elastic arm and the second elastic arm is both 4 mm - 10 mm.

[0014] As a preferred solution, the height h of the first teeth and the second teeth is both 0.4 mm - 0.7 mm.

[0015] As a preferred solution, the distance b between two adjacent first teeth is 0.5 mm - 1.0 mm.

[0016] As a preferred solution, the limiting part is an annular rib provided around the circumference of the connector body. The size of the annular rib is greater than the size of the mounting hole. The annular rib is located on the front side of the first elastic arm and the second elastic arm, and the gap d between the annular rib and the first elastic arm and the second elastic arm is ≤ 1.0 mm.

[0017] Compared with the prior art, the present utility model has obvious advantages and beneficial effects. Specifically, by providing a limiting part, a first elastic arm, and a second elastic arm on the connector body, the first elastic arm and the second elastic arm are oppositely arranged on both sides of the connector body. The first elastic arm extends obliquely upward from front to back, and the second elastic arm extends obliquely downward from front to back. A plurality of first teeth are provided on the side of the first elastic arm away from the connector body, and a plurality of second teeth are provided on the side of the second elastic arm away from the connector body. During assembly, the connector body is inserted backward into the mounting hole on the mounting member, and the limiting part abuts against the mounting member to limit the backward movement of the connector body. The first teeth on the first elastic arm and the second teeth on the second elastic arm are both engaged with the edge of the mounting hole to limit the forward movement of the connector body. Thus, the connector body is clamped to the mounting member by a clamping method, simplifying the connection structure, making assembly more convenient, and reducing costs.

[0018] To more clearly elaborate on the structural features, technical means, and the specific purposes and functions achieved by the present utility model, the following further details the present utility model in conjunction with the drawings and specific embodiments: Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0020] Figure 2 is a side view of an embodiment of the present utility model;

[0021] Figure 3 is a three-dimensional schematic diagram of the assembled state of an embodiment of the present utility model with the mounting member;

[0022] Figure 4 is a cross-sectional schematic diagram of the assembled state of an embodiment of the present utility model with the mounting member;

[0023] Figure 5 is a three-dimensional schematic diagram of the disassembled state of an embodiment of the present utility model with the mounting member.

[0024] Description of the Reference Numerals in the Drawings:

[0025] 10 - Connector body; 11 - Insertion hole; 12 - Wiring harness; 13 - Limiting part; 14 - First elastic arm; 141 - First teeth; 15 - Second elastic arm; 151 - Second teeth; 16 - Third elastic arm; 17 - Fourth elastic arm; 20 - Mounting member; 21 - Mounting hole. Detailed implementation mode

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] As Figures 1-5 shown, the present utility model discloses a clamping structure for a board-end connector, which includes a connector body 10. A plug hole 11 is provided at the front end of the connector body 10. A wire harness 12 is connected to the rear end of the connector body 10. The wire harness 12 is a power line and / or a signal line. The number of the plug holes 11 can be set to one, or two or more.

[0029] The connector body 10 is further provided with a limiting portion 13, a first elastic arm 14 and a second elastic arm 15. The first elastic arm 14 and the second elastic arm 15 are oppositely arranged on both sides of the connector body 10. The first elastic arm 14 extends obliquely upward from front to back, and the second elastic arm 15 extends obliquely downward from front to back. On the side of the first elastic arm 14 away from the connector body 10, there are a number of first teeth 15 distributed along the extending direction of the first elastic arm 14. On the side of the second elastic arm 15 away from the connector body 10, there are a number of second teeth 151 distributed along the extending direction of the second elastic arm 15. During assembly, the connector body 10 is inserted backward into the mounting hole 21 on the mounting member 20. The mounting member 20 is a sheet metal part. The limiting portion 13 abuts against the mounting member 20 to limit the backward movement of the connector body 10. Both the first teeth 15 and the first teeth 15 are clamped with the edge of the mounting hole 21 to limit the forward movement of the connector body 10. After the assembly is in place, since both the first teeth 15 and the second teeth 151 are clamped with the edge of the mounting hole 21, when the connector body 10 is pulled forward, the first elastic arm 14 will tend to expand outward in a direction away from the connector body 10 due to the reverse acting force of the mounting member 20 on the first teeth, and at the same time, the second elastic arm 15 will tend to expand outward in a direction away from the connector body 10 due to the reverse acting force of the mounting member 20 on the second teeth, thereby restricting the connector body 10 from withdrawing forward from the mounting hole 21.

[0030] The limiting portion 13 is an annular rib provided around the circumference of the connector body 10. The size of the annular rib > the size of the mounting hole 21. The annular rib is located on the front side of the first elastic arm 14 and the second elastic arm 15, and the gap d between the annular rib and the first elastic arm 14 and the second elastic arm 15 is ≤ 1.0 mm. Preferably, the gap d is 0.4 mm. By setting the gap d between the annular rib and the first elastic arm 14 and the second elastic arm 15 to be ≤ 1.0 mm, a thinner mounting member 20 can be applied.

[0031] The first elastic arm 14 is connected to the connector body 10 through a third elastic arm 16, and the second elastic arm 15 is connected to the connector body 10 through a fourth elastic arm 17. Specifically, the first elastic arm 14, the third elastic arm 16, the second elastic arm 15, the fourth elastic arm 17 and the connector body 10 are integrally formed. By providing the third elastic arm 16 to connect the first elastic arm 14 and the connector body 10, and providing the fourth elastic arm 17 to connect the second elastic arm 15 and the connector body 10, the elastic deformation effect of the first elastic arm 14 and the second elastic arm 15 is better. During assembly, it is easy to clamp the first teeth 15 and the second teeth 151 with the mounting hole 21, and at the same time, it can also prevent the first elastic arm 14 and the second elastic arm 15 from being easily broken.

[0032] The third elastic arm 16 extends obliquely downward from front to back, and the fourth elastic arm 17 extends obliquely upward from front to back. The third elastic arm 16 is connected to the surface of the first elastic arm 14 away from the connector body 10, and the fourth elastic arm 17 is connected to the surface of the second elastic arm 15 away from the connector body 10. By providing the third elastic arm 16 that extends obliquely downward from front to back, and the fourth elastic arm 17 that extends obliquely upward from front to back, and connecting the third elastic arm 16 to the surface of the first elastic arm 14 away from the connector body 10, and connecting the fourth elastic arm 17 to the surface of the second elastic arm 15 away from the connector body 10, during assembly, the connector body 10 is inserted backward into the mounting hole 21. By utilizing the guiding effect of the third elastic arm 16 and the fourth elastic arm 17, the edge of the mounting hole 21 slides along the third elastic arm 16 and the fourth elastic arm 17 to the first elastic arm 14 and the second elastic arm 15, and then the first tooth 15 is engaged with the second tooth 151 to the edge of the mounting hole 21, making the assembly convenient.

[0033] The included angle α between the third elastic arm 16 and the horizontal plane and the included angle α between the fourth elastic arm 17 and the horizontal plane are both 10 degrees - 40 degrees, and preferably the included angle α is 30 degrees. By providing the third elastic arm 16 and the fourth elastic arm 17 with an included angle α of 10 degrees - 40 degrees with the horizontal plane, the third elastic arm 16 and the fourth elastic arm 17 have a sufficient elastic deformation range and are applicable to larger mounting holes 21.

[0034] The lengths L1 of the third elastic arm 16 and the fourth elastic arm 17 are both ≥ 10 mm. By providing the third elastic arm 16 and the fourth elastic arm 17 with lengths L1 ≥ 10 mm, the third elastic arm 16 and the fourth elastic arm 17 have better flexibility, improving the elastic effect of the first elastic arm 14 and the second elastic arm 15.

[0035] The numbers of the first elastic arm 14 and the second elastic arm 15 are both two, and the two first elastic arms 14 and the two second elastic arms 15 are spaced along the left - right direction. By using multiple first elastic arms 14 and multiple second elastic arms 15, there are multiple support points between the connector body 10 and the mounting member 20, thereby improving the engagement effect and making the engagement more stable.

[0036] The included angle β between the first elastic arm 14 and the horizontal plane and the included angle β between the second elastic arm 15 and the horizontal plane are both 5 degrees - 15 degrees, and preferably the included angle β is 13.5 degrees.

[0037] The lengths L2 of the first elastic arm 14 and the second elastic arm 15 are both 4 mm - 10 mm, and preferably the length L2 is 6 mm.

[0038] The heights h of the first teeth 15 and the second teeth 151 are both 0.4 mm - 0.7 mm, preferably 0.5 mm. The spacing b between two adjacent first teeth 15 and the spacing b between two adjacent second teeth 151 are both 0.5 mm - 1.0 mm, preferably 0.8 mm.

[0039] The first teeth 15 can be set as conventional teeth, and the included angle between the protruding direction of the tip of the conventional teeth and the extending direction of the first elastic arm 14 is 90 degrees. The first teeth 15 can also be set as reverse teeth, which are inclined forward, and the included angle between the protruding direction of the tip of the reverse teeth and the extending direction of the first elastic arm 14 is an obtuse angle. When using reverse teeth, the anti - detachment effect of the connector body 10 is better.

[0040] It should be noted that the present utility model can also be provided with structures such as teeth, bumps or grooves on the inner wall of the mounting hole 21, and the teeth, bumps or grooves are engaged with the first teeth 15 and the second teeth 151, so that the connector body 10 is more tightly engaged with the mounting member 20.

[0041] The assembly process of the present utility model: Insert the rear end of the connector body 10 backward into the mounting hole 21 on the mounting member 20. The edge of the mounting hole 21 abuts against the third elastic arm 16 and the fourth elastic arm 17, causing the third elastic arm 16 and the fourth elastic arm 17 to move inward and deform elastically. Continue to move the connector body 10 backward, so that the edge of the mounting hole 21 slides onto the first elastic arm 14 and the second elastic arm 15, and both the first teeth 15 and the second teeth 151 are engaged with the edge of the mounting hole 21. When the limiting portion 13 abuts against the front surface of the mounting member 20, the connector body 10 is assembled in place.

[0042] In summary, the present utility model is provided with a limiting portion 13, a first elastic arm 14 and a second elastic arm 15 on the connector body 10. The first elastic arm 14 and the second elastic arm 15 are oppositely arranged on both sides of the connector body 10. The first elastic arm 14 extends obliquely upward from front to back, and the second elastic arm 15 extends obliquely downward from front to back. On the side of the first elastic arm 14 away from the connector body 10, there are several first teeth 15, and on the side of the second elastic arm 15 away from the connector body 10, there are several second teeth 151. During assembly, the connector body 10 is inserted backward into the mounting hole 21 on the mounting member 20. The limiting portion 13 abuts against the mounting member 20 to limit the backward movement of the connector body 10, and both the first teeth 15 on the first elastic arm 14 and the first teeth 15 on the second elastic arm 15 are engaged with the edge of the mounting hole 21 to limit the forward movement of the connector body 10. Thus, the connector body 10 is engaged with the mounting member 20 by a snap - fit method, simplifying the connection structure, making the assembly more convenient and having a low cost.

[0043] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made to the above embodiments based on the actual technology of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A board-end connector clamping structure, comprising a connector body, wherein a plug hole is provided at the front end of the connector body, and characterized in that: The connector body is also provided with a limiting portion, a first elastic arm and a second elastic arm, the first elastic arm and the second elastic arm are relatively arranged on both sides of the connector body, the first elastic arm extends obliquely upward from front to back, and the second elastic arm extends obliquely downward from front to back, and the first elastic arm is provided with a plurality of first teeth distributed along the extension direction of the first elastic arm on the side away from the connector body, and the second elastic arm is provided with a plurality of second teeth distributed along the extension direction of the second elastic arm on the side away from the connector body. During assembly, the connector body is inserted backward into the mounting hole on the mounting piece, and the limiting portion abuts against the mounting piece to limit the backward movement of the connector body, and the first teeth and the first teeth are both engaged with the edge of the mounting hole to limit the forward movement of the connector body.

2. The board-end connector clamping structure according to claim 1, characterized in that: The first elastic arm is connected to the connector body through the third elastic arm, and the second elastic arm is connected to the connector body through the fourth elastic arm.

3. The board-end connector clamping structure according to claim 2, characterized in that: The third elastic arm extends obliquely downward from front to back, the fourth elastic arm extends obliquely upward from front to back, the third elastic arm is connected to a side surface of the first elastic arm away from the connector body, and the fourth elastic arm is connected to a side surface of the second elastic arm away from the connector body.

4. The board-end connector clamping structure according to claim 2, characterized in that: The included angle α between the third elastic arm and the horizontal plane and the included angle α between the fourth elastic arm and the horizontal plane are both 10 degrees to 40 degrees.

5. The board-end connector clamping structure according to claim 2, characterized in that: The lengths L1 of the third elastic arm and the fourth elastic arm are both ≥10 mm.

6. The board-end connector clamping structure according to claim 1, characterized in that: The included angle β between the first elastic arm and the horizontal plane and the included angle β between the second elastic arm and the horizontal plane are both 5 degrees to 15 degrees.

7. The board-end connector clamping structure according to claim 1, characterized in that: The lengths L2 of the first elastic arm and the second elastic arm are both 4 mm-10 mm.

8. The board-end connector clamping structure according to claim 1, characterized in that: The heights h of the first teeth and the second teeth are both 0.4 mm-0.7 mm.

9. The board-end connector clamping structure according to claim 1, characterized in that: The distance b between two adjacent first teeth is 0.5 mm-1.0 mm.

10. The board-end connector clamping structure according to any one of claims 1 to 9, characterized in that: The limiting portion is an annular rib arranged around the circumference of the connector body, the size of the annular rib is greater than the size of the mounting hole, the annular rib is located in front of the first elastic arm and the second elastic arm, and the gap d between the annular rib and the first elastic arm and the second elastic arm is ≤1.0mm.

Images