CN210444676U

CN210444676U - Anti-vibration circuit board with high strength

Info

Publication number: CN210444676U
Application number: CN201920784079.XU
Authority: CN
Inventors: 张金娥
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-05-01
Anticipated expiration: 2029-05-28

Abstract

The utility model relates to a circuit board technical field specifically is a big anti-vibration circuit board of intensity, which comprises a housing, the mounting groove, be equipped with elastic component mechanism in the mounting groove, elastic component mechanism includes the bottom plate, the elastic rod, the roof, threaded hole has been seted up at the roof middle part, and be equipped with the cavity on the roof, be equipped with first spring in the cavity, screw hole one side and baffle elastic connection are kept away from to first spring, first spring one side fixed connection backup pad is kept away from to the baffle, baffle one end butt is kept away from on the mounting groove lateral wall to the backup pad, the bolt runs through the mounting hole on the circuit board and through lower extreme screw thread post and screw hole spiro union, the second spring has been cup jointed in: the bottom of the bolt is fixedly connected in a threaded hole in the middle of the top plate, and the second spring and the elastic piece mechanism below the circuit board form a two-stage buffer structure, so that the circuit board is prevented from being in direct contact with the machine shell, and a good anti-vibration protection effect is generated on vertical vibration of the circuit board.

Description

Anti-vibration circuit board with high strength

Technical Field

The utility model relates to a circuit board technical field specifically is a vibration-proof circuit board that intensity is big.

Background

The printed circuit board is widely applied to various electronic products as a carrier of each electronic element and a signal path, and is provided with a circular mounting hole, and the printed circuit board is usually fixed on a machine shell by using a screw to ensure the stability of the printed circuit board.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-vibration circuit board that intensity is big to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a big anti-vibration circuit board of intensity, includes the casing and is located the mounting groove on the casing, be equipped with elastic component mechanism in the mounting groove, elastic component mechanism includes bottom plate, elastic rod, roof, threaded hole is seted up at the roof middle part, and the even multiunit cavity that is equipped with of circumference on the roof, be equipped with first spring in the cavity, screw hole one side and baffle elastic connection are kept away from to first spring, first spring one side fixed connection backup pad is kept away from to the baffle, the backup pad is kept away from baffle one end and is run through roof lateral wall through-hole and butt on the mounting groove lateral wall, screw hole and bolt bottom spiro union, the bolt runs through the mounting hole on the circuit board and through lower extreme screw thread post and screw hole spiro union, the second spring has been cup jointed in.

Preferably, the mounting groove is a structure formed by two cylindrical cavities with a small upper part and a large lower part.

Preferably, the bottom plate bottom surface and the mounting groove bottom surface can be connected in a sliding mode, the top plate center shaft and the bottom plate center shaft are located on the same straight line all the time, and elastic rods are evenly arranged on the bottom plate surface and the circumference corresponding to the top plate bottom surface.

Preferably, the diameter of the bottom plate is smaller than that of the top plate, and the diameter of the top plate is smaller than that of the cylindrical cavity with the smaller caliber of the installation groove.

Preferably, the supporting plate is abutted to a cylindrical cavity with a large caliber of the mounting groove, the side surface of the abutting end of the supporting plate is a circular arc-shaped curved surface, and the radian of the curved surface is the same as that of the side wall of the mounting groove.

Preferably, the size of the threaded column at the lower end of the bolt is matched with the threaded hole and is smaller than the inner diameter of the ring where the upper end of the elastic rod is located.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the bottom of the bolt is fixedly connected in a threaded hole in the middle of the top plate, and a second spring and an elastic element mechanism below the circuit board form a two-stage buffer structure, so that the circuit board is prevented from being in direct contact with the shell, and a good anti-vibration protection effect is generated on vertical vibration of the circuit board;

2. the first spring, the baffle, the supporting plate and the slidable bottom plate in the top plate buffer the displacement of the circuit board in the horizontal plane caused by vibration, so that the circuit board is well protected against vibration in the horizontal plane;

3. when the elastic component mechanism is damaged, the supporting plate is directly extruded, the elastic component mechanism can be taken out from the mounting groove to be replaced, and the operation is simple and fast.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

FIG. 2 is a top view of a mounting slot on a chassis;

fig. 3 is an enlarged schematic view of a structure in fig. 1.

In the figure: the device comprises a machine shell 1, a mounting groove 11, an elastic piece mechanism 2, a bottom plate 21, an elastic rod 22, a top plate 23, a threaded hole 3, a cavity 4, a first spring 41, a baffle plate 42, a supporting plate 43, a bolt 5, a circuit board 6, a mounting hole 61 and a second spring 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: an anti-vibration circuit board with high strength comprises a machine shell 1 and a mounting groove 11 positioned on the machine shell 1, wherein the mounting groove 11 is a structure consisting of two cylindrical cavities with small top and large bottom, an elastic part mechanism 2 is arranged in the mounting groove 11, the elastic part mechanism 2 comprises a bottom plate 21, elastic rods 22 and a top plate 23, the bottom surface of the bottom plate 21 is in sliding connection with the bottom surface of the mounting groove 11, a central shaft of the top plate 23 and a central shaft of the bottom plate 21 are always positioned on the same straight line, a plurality of groups of elastic rods 22 are uniformly arranged on the surface of the bottom plate 21 and the bottom surface of the top plate 23 in the circumferential direction correspondingly, and three groups of elastic rods 22 are arranged at the lowest part, which is not specifically described in the embodiment, the number of the elastic rods 22 is determined according to the actual situation in the actual production, the diameter of the bottom plate 21 is smaller than the diameter of the top plate 23, thereby performing buffering and vibration-proof protection on the circuit board 6.

The middle part of the top plate 23 is provided with a threaded hole 3, and the top plate 23 is uniformly provided with a plurality of groups of cavities 4 in the circumferential direction, six groups are provided in the embodiment, when in actual production, in order to ensure that the elastic member mechanism 2 is vibrated to move in any direction in a horizontal plane, the cavities 4 are at least provided with six groups, a first spring 41 is arranged in each cavity 4, one side of the first spring 41, which is far away from the threaded hole 3, is elastically connected with a baffle plate 42, one side of the baffle plate 42, which is far away from the first spring 41, is fixedly connected with a support plate 43, one end of the support plate 43, which is far away from the baffle plate 42, penetrates through a through hole in the side wall of the top plate 23 and abuts against the side wall of the mounting groove 11, the support plate 43 abuts against a cylindrical cavity with a larger caliber of the mounting groove 11, a convex circular ring integrally connected to the machine, the side that backup pad 43 supported the end is convex curved surface, and the curved surface radian is the same with the mounting groove 11 lateral wall,

screw hole

3 and 5 bottom spiro unions of bolt, and bolt 5 runs through mounting hole 61 on the circuit board 6 and passes through lower extreme screw thread post and 3 spiro unions of screw hole, and 5 lower extreme screw thread post sizes of bolt just are less than the internal diameter size of the ring in elastic rod 22 upper end place with 3 looks adaptations of screw hole, and the second spring 7 has been cup jointed in the outside that circuit board 6 below just is located bolt 5.

The bottom of the bolt 5 is fixedly connected in the threaded hole 3 in the middle of the top plate 23, when vibration occurs, the vertical direction circuit board 6 firstly extrudes the second spring 7 and drives the bolt 5 to move, then the elastic rod 22 is pressed to generate deformation and then reset under the deformation action of the spring, when the circuit board 6 is prevented from being in direct contact with the casing 1, good vibration-proof protection effect is generated on the vertical vibration of the circuit board 6, the bolt 5 horizontally extrudes the top plate 23 to any direction, the first spring 41 in the direction cavity 4 is compressed under the action of the baffle plate 42 and the support plate 43, the top plate 23 drives the bottom plate 21 to generate displacement inclined to the direction, further the bolt 5 drives the circuit board 6 to generate displacement inclined to the direction, then reset under the deformation action of the spring, good vibration-proof protection effect is generated on the circuit board 6 in the horizontal plane, and vibration-proof effect can be achieved on any direction, thereby strengthen the protection intensity to the antivibration of circuit board, when the elastic component mechanism 2 takes place to damage moreover, directly extrude backup pad 43, can take out elastic component mechanism 2 from mounting groove 11 and change, easy operation is swift, improves repair efficiency.

The working principle is as follows: in practical use, the bolt 5 penetrates through the mounting hole 61 on the circuit board 6, the second spring 7 is sleeved outside the bolt 5 below the circuit board 6, the threaded column at the lower end of the bolt 5 is in threaded connection with the threaded hole 3, so that the second spring 7 supports the circuit board 6 in a static state and is in a balanced compression state, when vibration occurs, the vertical circuit board 6 firstly extrudes the second spring 7 and drives the bolt 5 to move, then the elastic rod 22 is pressed to generate deformation and then reset under the deformation action of the spring, good anti-vibration protection effect is generated on the vertical vibration of the circuit board 6 while the circuit board 6 is prevented from being in direct contact with the casing 1, the bolt 5 horizontally extrudes the top plate 23 to any direction, the first spring 41 in the cavity 4 in the direction is compressed under the action of the baffle plate 42 and the support plate 43, the top plate 23 drives the bottom plate 21 to generate displacement inclined to the direction, and then make bolt 5 drive circuit board 6 and produce the displacement that leans on this direction, then reset under the deformation effect of spring, produce good antivibration guard action to circuit board 6 in the horizontal plane, the utility model discloses the device can both play the antivibration effect to the vibration of arbitrary direction, so strengthened the protection intensity to the antivibration of circuit board greatly.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an anti-vibration circuit board that intensity is big, includes casing (1) and mounting groove (11) that are located casing (1), its characterized in that: the mounting groove (11) is internally provided with an elastic part mechanism (2), the elastic part mechanism (2) comprises a bottom plate (21), an elastic rod (22) and a top plate (23), the middle part of the top plate (23) is provided with a threaded hole (3), a plurality of groups of cavities (4) are circumferentially and uniformly arranged on the top plate (23), a first spring (41) is arranged in each cavity (4), one side, away from the threaded hole (3), of the first spring (41) is elastically connected with a baffle (42), one side, away from the first spring (41), of the baffle (42) is fixedly connected with a supporting plate (43), one end, away from the baffle (42), of the supporting plate (43) penetrates through a through hole in the side wall of the top plate (23) and abuts against the side wall of the mounting groove (11), the threaded hole (3) is in threaded connection with the bottom of a bolt (5), the bolt (5) penetrates through a mounting hole (61) in, and a second spring (7) is sleeved on the outer side of the bolt (5) and below the circuit board (6).

2. The strong vibration-proof circuit board as claimed in claim 1, wherein: the mounting groove (11) is a structure formed by two cylindrical cavities with a small upper part and a large lower part.

3. The strong vibration-proof circuit board as claimed in claim 1, wherein: bottom plate (21) bottom surface and mounting groove (11) bottom surface can sliding connection, roof (23) center pin and bottom plate (21) center pin are located same straight line all the time, the even multiunit elastic rod (22) of arranging in circumference that bottom plate (21) surface and roof (23) bottom surface correspond.

4. A strong vibration-proof circuit board according to claim 1 or 2, characterized in that: the diameter of the bottom plate (21) is smaller than that of the top plate (23), and the diameter of the top plate (23) is smaller than that of a cylindrical cavity with a smaller caliber of the mounting groove (11).

5. A strong vibration-proof circuit board according to claim 1 or 2, characterized in that: the supporting plate (43) is abutted to a cylindrical cavity with a larger caliber of the mounting groove (11), the side surface of the abutting end of the supporting plate (43) is a circular arc-shaped curved surface, and the radian of the curved surface is the same as that of the side wall of the mounting groove (11).

6. The strong vibration-proof circuit board as claimed in claim 1, wherein: the size of the threaded column at the lower end of the bolt (5) is matched with the threaded hole (3) and is smaller than the inner diameter of the ring where the upper end of the elastic rod (22) is located.