CN210042609U

CN210042609U - PCB circuit board for elevator car roof wiring

Info

Publication number: CN210042609U
Application number: CN201920441482.2U
Authority: CN
Inventors: 吕存军; 邢磊磊; 程付理; 卜建坤; 刘进喜
Original assignee: ANHUI FEIINTOOL ELEVATOR Co Ltd
Current assignee: ANHUI FEIINTOOL ELEVATOR Co Ltd
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2020-02-07
Anticipated expiration: 2029-04-02

Abstract

The utility model discloses a PCB (printed circuit board) for elevator car roof wiring, which comprises a PCB body and a fixed plate positioned below the PCB body, wherein the PCB body is square, grooves with upward openings are formed at the four corners of the square, rubber blocks are arranged in the grooves, the height of each rubber block is greater than the depth of each groove, and the size of each groove is consistent with that of each rubber block; and a damping unit is arranged between the PCB body and the fixing plate. When meetting the special circumstances, the utility model discloses a set up the block rubber and set up the shock attenuation unit in the four corners of PCB circuit board, effective buffering is because of the influence that vibration or extrusion caused the circuit board, and stress relief also can alleviate the vibration when the elevator moves under the normal operating conditions to the influence of PCB circuit board, has prolonged the life of PCB circuit board, and the block rubber can be changed at any time according to the in service behavior.

Description

PCB circuit board for elevator car roof wiring

Technical Field

The utility model relates to an elevator production field, concretely relates to a PCB circuit board for wiring of elevator sedan-chair top.

Background

Printed circuit boards, also known as printed circuit boards, and PCB circuit boards, are providers of electrical connections for electronic components, and have been developed for over 100 years. The design of the circuit board is mainly a layout design, and the adoption of the circuit board has the advantage of greatly reducing errors of wiring and assembly. The circuit board can be divided into a single-sided board, a double-sided board, a four-layer board, a six-layer board and other multi-layer circuit boards according to the number of the layers of the circuit board.

Elevators are common lifting tools and are commonly used in communities and various commercial venues, a large number of connecting wires are required for the internal connection of the elevators, and a large number of external devices are also required to be connected, so that the circuit connection of the elevators generally uses a PCB (printed circuit board).

In the specific working environment of the elevator, the service life of the currently used PCB is not very long, and particularly, the PCB applied to the elevator has poor stress release function, and once an accident occurs, the PCB is pressed by an object, the PCB circuit is damaged, the control unit is affected, and the life safety of an elevator user is threatened.

Disclosure of Invention

In order to solve the problem, the utility model provides a PCB circuit board for wiring of elevator cab can effectively guarantee the stability of using when receiving external force impact, and has good stress release function, guarantees elevator user's safety in utilization.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a PCB (printed circuit board) for wiring of an elevator car roof comprises a PCB body and a fixing plate positioned below the PCB body, wherein the PCB body is square, grooves with upward openings are formed in the positions of four corners of the square, rubber blocks are arranged in the grooves, the height of each rubber block is larger than the depth of each groove, and the size of each groove is consistent with that of each rubber block;

and a damping unit is arranged between the PCB body and the fixing plate.

The utility model discloses the beneficial effect who brings does: when meetting the special circumstances, the utility model discloses a set up the block rubber and set up the shock attenuation unit in the four corners of PCB circuit board, effective buffering is because of the influence that vibration or extrusion caused the circuit board, and stress relief also can alleviate the vibration when the elevator moves under the normal operating conditions to the influence of PCB circuit board, has prolonged the life of PCB circuit board, and the block rubber can be changed at any time according to the in service behavior.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the inside of the damping block of the present invention.

Detailed Description

The present invention will be described in detail with reference to fig. 1-2.

As shown in fig. 1-2, a PCB for wiring of an elevator car roof includes a PCB body 1 and a fixing plate 2 located below the PCB body 1, wherein the PCB body 1 is square, grooves 11 with upward openings are formed at four corners of the square, rubber blocks 12 are arranged in the grooves 11, the height of the rubber blocks 12 is greater than the depth of the grooves 11, and the size of the grooves 11 is the same as that of the rubber blocks 12;

and a damping unit 3 is arranged between the PCB body 1 and the fixing plate 2. During the use, the four corners of fixed plate 2 are provided with the connecting hole, fix the position that needs through lock nut, then set up the block rubber and set up the shock attenuation unit in the four corners of PCB circuit board body 1, effectively cushion because of the influence that vibration or extrusion caused the circuit board, and the stress relief also can alleviate the influence of vibration when the elevator moves to the PCB circuit board under the normal operating condition, has prolonged the life of PCB circuit board, and the block rubber can be changed at any time according to the in service behavior.

Further, the damping unit 3 includes a spring 31 and a damping block 32 disposed in the spring 31, wherein one end of the spring 31 is fixed to the fixing plate 2, and the other end is fixed to the lower end surface of the PCB board body 1. The spring 31 can play a good role in buffering, and the buffering effect is better through the matching of the damping block 32 in the spring 31 and the damping block 32.

Preferably, the damping block 32 is internally provided with a foamed aluminum layer 321. Foam aluminium lamination 321 has the quality light, and sound absorbing effect and buffering effect are good advantage, provide better buffering effect when can alleviateing whole quality, and foam aluminium lamination 321's cost is not high, can not bring cost pressure.

Further, the damping units 3 are 4, and the damping units 3 are arranged on the lower end faces of the four corners of the PCB body 1. The damping unit sets up to 4, can effectively balance the whole face of PCB circuit board body 1, and the shock attenuation is effectual.

As the preferred scheme of the utility model, groove 11 be 8, the four corners of PCB circuit board body 1 and the midpoint department on every limit all are provided with groove 11.

As the preferred scheme of the utility model, damping unit 3 be 8, the four corners of PCB circuit board body 1 and the midpoint department on every limit all are provided with damping unit 3.

All set up groove 11 and shock attenuation unit 3 to 8, rubber block 12 also is 8 promptly, when taking place special case, probably play better shock attenuation and destressing effect, furthest's protection PCB circuit board alleviates the damage that PCB circuit board received, prolongs its life.

The foregoing shows and describes the general principles, essential features, and features of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the description of the above embodiments and the description is only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are all within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a PCB circuit board for wiring of elevator cab, includes PCB circuit board body (1) and fixed plate (2) that are located PCB circuit board body (1) below, its characterized in that: the PCB circuit board body (1) is square, grooves (11) with upward openings are formed in the positions of four corners of the square, rubber blocks (12) are arranged in the grooves (11), the height of each rubber block (12) is larger than the depth of each groove (11), and the size of each groove (11) is consistent with that of each rubber block (12);

a damping unit (3) is arranged between the PCB body (1) and the fixing plate (2).

2. The PCB circuit board for elevator cab wiring of claim 1, wherein: the damping unit (3) comprises a spring (31) and a damping block (32) arranged in the spring (31), one end of the spring (31) is fixed with the fixing plate (2), and the other end of the spring is fixed with the lower end face of the PCB body (1).

3. The PCB circuit board for elevator cab wiring of claim 2, wherein: and a foamed aluminum layer (321) is arranged in the damping block (32).

4. The PCB wiring board for elevator cab wiring of claim 3, wherein: the number of the damping units (3) is 4, and the damping units (3) are arranged on the lower end faces of four corners of the PCB body (1).

5. The PCB circuit board for the elevator cab wiring according to any one of claims 1 to 4, wherein: the number of the grooves (11) is 8, and the grooves (11) are formed in the four corners of the PCB body (1) and the middle points of each edge.

6. The PCB circuit board for elevator cab wiring of claim 4, wherein: the number of the damping units (3) is 8, and the damping units (3) are arranged at the four corners of the PCB body (1) and the middle point of each edge.