CN112750641A

CN112750641A - Steering wheel switch gap adjusting structure

Info

Publication number: CN112750641A
Application number: CN202011550602.6A
Authority: CN
Inventors: 汪春华; 汪致富; 吴旭东
Original assignee: Huangshan Automaster Electric Co ltd
Current assignee: Huangshan Automaster Electric Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-05-04

Abstract

The invention discloses a steering wheel switch gap adjusting structure which comprises a shell, a socket clamped with the shell and a PCB arranged on the socket, wherein a group of elastic sheets for supporting the PCB are arranged on the socket, a group of supporting bosses for limiting the lower limit of the PCB are also arranged on the socket, and a group of compression posts for limiting the upper limit of the PCB are arranged in the shell. The elastic piece is of an arch structure, and two ends of the elastic piece are fixedly arranged on the socket. The invention can solve the problems of loose fixation of the PCB and the increase of mutual clearance caused by creep deformation of plastic parts after long-term use due to assembly and manufacturing errors of the switch shell and the socket, ensures the reliability of the assembly of the PCB, avoids abnormal sound, and can be widely applied to the field of steering wheel switches.

Description

Steering wheel switch gap adjusting structure

Technical Field

The invention relates to the field of automobile switches, in particular to a steering wheel switch gap adjusting structure.

Background

Generally, the structure for adjusting the switch clearance of the steering wheel of the automobile is simple, the socket is assembled by adopting the interference of the soft ribs, and the upper and lower zero matching of the switch PCB board is achieved by utilizing the plastic deformation of the soft ribs.

Disclosure of Invention

The invention aims to provide a steering wheel switch gap adjusting structure, which solves the problem that the conventional steering wheel switch is easy to generate abnormal sound after being used for a long time.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a steering wheel switch clearance adjustment structure, includes the shell, with the socket of shell joint, sets up the PCB board on the socket, be provided with a set of flexure strip that supports the PCB board on the socket, still be provided with the support boss of a set of restriction PCB board lower limit on the socket, be provided with the compression leg of a set of restriction PCB board upper limit in the shell.

Furthermore, the elastic sheet is of an arch structure, and two ends of the elastic sheet are fixedly arranged on the socket.

Preferably, the elastic piece and the socket are integrally formed by injection molding.

In order to improve the safety and avoid the short circuit between the metal elastic structure and the circuit board, the elastic sheet is made of elastic plastic.

The invention has the beneficial effects that: according to the invention, the socket is provided with the group of elastic pieces, and the PCB is always in a state of being pressed by the elastic pieces and the pressing columns by means of elastic deformation of the elastic pieces, so that the PCB is prevented from loosening. Even the socket has the deviation with the joint cooperation of shell, also can adjust through the flexure strip, guarantees the fixed reliability of PCB board, simultaneously, when the plastics of socket and shell took place the creep and cause the distance grow between socket and shell, also can guarantee the fixed reliability of PCB board through the deformation of flexure strip, avoids the switch to produce the abnormal sound. The elastic structure's of ingenious application of this structure deformation to guarantee the reliability of switch assembly installation, thereby can avoid switch manufacturing error and later stage to use and cause the inside abnormal sound problem of switch that the fit-up gap increases and leads to.

The invention will be explained in more detail below with reference to the drawings and examples.

Drawings

Fig. 1 is a cross-sectional view of the present invention.

Fig. 2 is a schematic perspective view of the socket of the present invention.

Fig. 3 is a schematic perspective view of the housing of the present invention.

Detailed Description

In an embodiment, as shown in fig. 1 to 3, a steering wheel switch gap adjusting structure includes a housing 1, a socket 2 clamped with the housing 1, and a PCB 3 disposed on the socket 2. Be provided with card hole 11 on the shell 1, be provided with on the socket 2 with card hole 11 complex buckle 21, install through buckle 21 and accomplish the joint cooperation of shell 1 and socket 2 in calorie hole 11. The socket 2 is provided with a group of supporting bosses 5 for limiting the lower limit of the PCB, and the shell 1 is internally provided with a group of compression columns 6 for limiting the upper limit of the PCB 3. During assembly, if the accuracy of the clamping hole 11 and the clamping buckle 21 is high and meets the design size, the PCB is clamped and fixed between the support boss 5 and the pressure column 6. If when card hole 11 and buckle 21's processing had the error, when supporting the boss 5 and the compression leg distance between 6 was greater than the PCB plate thickness, the PCB board will appear not hard up, and simultaneously, the switch uses for a long time and also can cause the plastics to warp the distance increase, also can cause the PCB board to be fixed not hard up to lead to the inside abnormal sound of switch, for solving this problem, be provided with a set of flexure strip 4 that supports PCB board 3 on the socket 2, flexure strip 4 is domes, and its both ends are fixed to be set up on socket 2, and the peak of flexure strip 4 supports the below at PCB board 3, provides elastic support for the PCB board, if support the boss 5 and when the compression leg distance between 6 was greater than the PCB plate thickness, flexure strip 4 can compress tightly the PCB board through warping promptly, guarantees that the PCB board can not rock. In order to ensure the strength of the elastic sheet 4, the elastic sheet 4 and the socket 2 are integrally formed by injection molding. Meanwhile, in order to avoid the short circuit caused by the contact of metal and the PCB as much as possible, the elastic sheet 4 is made of elastic plastic.

The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.

Claims

1. The utility model provides a steering wheel switch clearance adjustment structure, includes shell (1), with socket (2) of shell (1) joint, sets up PCB board (3) on socket (2), its characterized in that: the socket is characterized in that a group of elastic pieces (4) for supporting the PCB (3) are arranged on the socket (2), a group of supporting bosses (5) for limiting the lower limit of the PCB are further arranged on the socket (2), and a group of compression columns (6) for limiting the upper limit of the PCB (3) are arranged in the shell (1).

2. The steering wheel switch gap adjustment structure of claim 1, wherein: the elastic piece (4) is of an arch structure, and two ends of the elastic piece are fixedly arranged on the socket (2).

3. The steering wheel switch gap adjustment structure of claim 2, wherein: the elastic piece (4) and the socket (2) are integrally formed by injection molding.

4. The steering wheel switch gap adjustment structure of claim 3, wherein: the elastic sheet (4) is made of elastic plastic materials.