CN211745028U

CN211745028U - Circuit board assembly with good shock resistance

Info

Publication number: CN211745028U
Application number: CN201921702418.1U
Authority: CN
Inventors: 钟伟生
Original assignee: Jian Sheng Electronic Technology Huizhou Co ltd
Current assignee: Jian Sheng Electronic Technology Huizhou Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-10-23
Anticipated expiration: 2029-10-11

Abstract

The utility model relates to a circuit board assembly with good shock resistance, including the PCB plate body, a plurality of mounting holes have been seted up to the PCB plate body, the mounting hole cross-under has damper, damper includes first compression spring, second compression spring, the bolt, first compression spring and second compression spring respectively with the last face of PCB plate body, the face offsets down, the first compression spring of bolt cross-under in proper order, the mounting hole, second compression spring, the bolt is provided with and keeps off the ring, the diameter that keeps off the ring is less than the diameter of second compression spring and mounting hole, the bolt cross-under has the limiting plate, the limiting plate diameter is greater than second compression spring. The utility model discloses a with the buffer board among the damper assembly, make the shell receive and collide the back, can absorb the vibration that collides the production with the first compression spring and the second compression spring that the PCB plate body offseted, the snubber block of buffer board can directly absorb the vibration of PCB plate body to reduce to collide the influence to the PCB plate body by a wide margin, protect the electron device on PCB plate body and the plate body.

Description

Circuit board assembly with good shock resistance

Technical Field

The utility model relates to a circuit board technical field especially relates to a circuit board assembly with good shock resistance.

Background

With the development of science and technology, the requirements of people on electronic products are more and more strict, and the normal operation of the electronic products depends on the performance of the circuit board. In the use of electronic product, the condition of fluctuation or even vibrations often can appear, lead to the circuit board to follow vibrations, seriously influence the working property of circuit board, cause the trouble, in current circuit board antidetonation measure, the antidetonation effect of taking precautions against earthquakes of stereoplasm plastic protective sheath and aluminum alloy protective sheath is very unsatisfactory, not only be difficult to the protection circuit board, and its self is also damaged easily, often adopt to all be an antidetonation gimmick in addition, not only can not effectually play antidetonation effect, and often make the work that the circuit board can not normal still.

Therefore, it is very important to develop an anti-vibration circuit board with good effect.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model adopts the following technical scheme: the utility model provides a circuit board assembly with good shock resistance, including the PCB plate body, a plurality of mounting holes have been seted up to the PCB plate body, the mounting hole cross-under has shock-absorbing component, shock-absorbing component includes first compression spring, second compression spring, the bolt, first compression spring and second compression spring respectively with the last face of PCB plate body, the face offsets down, the first compression spring of bolt cross-under in proper order, the mounting hole, second compression spring, the bolt is provided with the fender ring, the diameter that keeps off the ring is less than the diameter of second compression spring and mounting hole, the bolt cross-under has the limiting plate, the limiting plate diameter is greater than second compression spring, second compression spring all offsets with the limiting plate with keeping off the ring.

The technical scheme can be further perfected as follows.

It is further noted that the number of mounting holes is greater than or equal to three.

It is further explained that a plurality of bolts are jointly connected with a buffer plate in a penetrating manner, the buffer plate is parallel to the PCB body, a plurality of grooves are formed in the buffer plate, shock absorption blocks are embedded in the grooves, and the shock absorption blocks are abutted to the PCB body.

It is further explained that the shock absorption block is made of foam materials or rubber materials.

Further, the first compression spring and the second compression spring are made of the same material, length, and thickness.

It is further noted that the spacing between the plurality of damper blocks is equal.

The utility model has the advantages that: compare in current circuit board, the utility model discloses a with the buffer board among the damper assembly, make the shell receive and collide the back, can absorb the vibration that collides the production with the first compression spring and the second compression spring that the PCB plate body offseted, the snubber block of buffer board can directly absorb the vibration of PCB plate body to reduce to collide the influence to the PCB plate body by a wide margin, protect the electron device on PCB plate body and the plate body.

Drawings

The figures further illustrate the invention, but the embodiments in the figures do not constitute any limitation of the invention.

Fig. 1 is a schematic front view of a circuit board with good shock resistance according to an embodiment of the present invention.

In the figure: 1-PCB plate body, 2-damping component, 21-bolt, 22-first compression spring, 23-second compression spring, 24-baffle ring, 25-limiting plate, 3-buffer plate and 31-damping block

Detailed Description

To further understand the contents, features and functions of the present invention, the following embodiments are described.

As shown in fig. 1, an embodiment of the utility model provides a circuit board assembly with good shock resistance, including PCB plate body 1, a plurality of mounting holes have been seted up to PCB plate body 1, the mounting hole cross-under has damper 2, damper 2 includes first compression spring 22, second compression spring 23, bolt 21, first compression spring 22 and second compression spring 23 respectively with PCB plate body 1 last face, the face offsets down, bolt 21 is first compression spring 22 of cross-under in proper order, the mounting hole, second compression spring 23, bolt 21 is provided with fender ring 24, the diameter that keeps off ring 24 is less than the diameter of second compression spring 23 and mounting hole, bolt 21 cross-under has limiting plate 25, limiting plate 25 diameter is greater than second compression spring 23, second compression spring 23 and fender ring 24 all offset with limiting plate 25.

Wherein, the number of the mounting holes is more than or equal to three. A plurality of bolts 21 have worn buffer board 3 jointly, and buffer board 3 is parallel with PCB plate body 1, and a plurality of recesses have been seted up to buffer board 3, and the recess embedding has snubber block 31, and snubber block 31 offsets with PCB plate body 1. The damper block 31 is made of foam material or rubber material. The first compression spring 22 and the second compression spring 23 are made of the same material, length, and thickness. The spacing between the plurality of damper blocks 31 is equal.

Specifically, referring to fig. 1, a bolt 21 of the damping assembly 2 sequentially passes through a first compression spring 22, a PCB board 1, a second compression spring 23, a limiting plate 25, and a buffer plate 3 from top to bottom, a stop ring 24 on the bolt 21 is used for limiting the sliding stroke of the limiting plate 25, when the circuit board assembly is connected with the product shell, the bolt 21 is screwed into the threaded hole of the shell, after the connection is finished, the upper plate surface of the limit plate 25 is abutted against the baffle ring 24, the lower plate surface of the limit plate 25 is abutted against the outer shell, thereby realizing the rigid fixed connection of the damping component 2 and the shell, in addition, the upper plate surface of the limit plate 25 is also propped against the second compression spring 23, for clamping the second compression spring 23, the diameter of the stop ring 24 on the bolt 21 should be smaller than the inner diameters of the two compression springs and the diameter of the mounting hole, so as to ensure that the bolt 21 can smoothly pass through the two compression springs and the PCB board 1. Present circuit board is all through the mounting direct with product shell rigid connection, the product shell receive the board body that will directly transmit the circuit board of vibration when offeing, and the utility model discloses the upper and lower face of PCB plate body 1 of circuit board subassembly all offsets with compression spring, is connected the back with the product shell, and the shell receives and collides the back, and first compression spring 22 and second compression spring 23 that offset with PCB plate body 1 can absorb the vibration that collides the production, reduce to collide the influence to PCB plate body 1 by a wide margin to protect the electron device on PCB plate body 1 and the plate body.

In addition, PCB plate body 1 below is provided with buffer board 3 parallel with it, and snubber block 31 among the buffer board 3 contacts with the PCB board, and snubber block 31 is the cotton or the rubber materials of elastic bubble, and when PCB plate body 1 received the clash and vibrate, snubber block 31 can direct and PCB plate body 1 contact, absorbs PCB plate body 1's vibration, stabilizes PCB plate body 1's state. The first compression spring 22 and the second compression spring 23 are made of the same material, length and thickness, so that the uniformity of stress on the upper surface and the lower surface of the PCB body 1 can be ensured, and the stability of the PCB body 1 is improved.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A circuit board assembly with good shock resistance, characterized in that: the PCB comprises a PCB body (1), wherein a plurality of mounting holes are formed in the PCB body (1), the mounting holes are connected in a penetrating manner to form shock absorption assemblies (2), each shock absorption assembly (2) comprises a first compression spring (22), a second compression spring (23) and a bolt (21), the first compression spring (22) and the second compression spring (23) are respectively abutted to the upper plate surface and the lower plate surface of the PCB body (1), the bolt (21) is sequentially connected in a penetrating manner to the first compression spring (22), the mounting holes and the second compression spring (23), a baffle ring (24) is arranged on the bolt (21), the diameter of the baffle ring (24) is smaller than that of the second compression spring (23) and the mounting holes, the bolt (21) is connected in a penetrating manner to a limiting plate (25), the diameter of the limiting plate (25) is larger than that of the second compression spring (23), and the baffle ring (24) are both abutted to the limiting plate (25), a plurality of bolt (21) cross-under has buffer board (3) jointly, buffer board (3) with PCB plate body (1) is parallel, a plurality of recesses have been seted up in buffer board (3), the recess embedding has snubber block (31), snubber block (31) offset with PCB plate body (1), snubber block (31) are cotton material of bubble or rubber materials, and are a plurality of interval between snubber block (31) equals.

2. The circuit board assembly with good shock resistance according to claim 1, wherein: the number of the mounting holes is more than or equal to three.

3. The circuit board assembly with good shock resistance according to claim 1, wherein: the first compression spring (22) and the second compression spring (23) are made of the same material, length and thickness.