Circuit board mounting structure

Abstract

The utility model relates to the technical field of circuit board installation, specifically to circuit board mounting structure. Including the casing, casing upper end opening, circuit board is installed in the casing, the inner wall of casing all around is fixed with the supporting plate, the supporting plate includes the vertical portion and the flat portion that set up up and down, the vertical portion of supporting plate upper end is fixed with the inclined portion, the inclined portion upper end is curved to the outside direction of casing arc and forms the curved portion, the long groove is seted up in the inclined portion, the long groove is slidably arranged with the push rod, the push rod lower end is fixed in the cushion block, the ear plate is integrally formed around the circuit board, the ear plate is located in the clamping cavity of its one side and is supported by the supporting block, the cushion block is located between the ear plate and the inner wall of clamping cavity, and the cushion block is tightly against the inner wall of clamping cavity and ear plate. Through the cushion block with the elasticity is moved to the ear plate and the inner wall between clamping cavity, the ear plate is stabilized in the clamping cavity, and then the stability to circuit board is realized. Meanwhile, the cushion block can shock absorption protection to circuit board.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board mounting technical field, specifically to circuit board mounting structure. BACKGROUND

[0002] The fixing mode of part circuit board is screw fixing at present, in order to make the hole on the circuit board correspond with the threaded hole on the shell column, need to position the circuit board placed in its inside, need to set the positioning member that carries out the positioning of switch circuit board when shell processing, therefore the mold of processing shell is more complex. After screw penetrates the hole on the circuit board and is connected with the threaded hole of the shell column, after long time use or long time high temperature in the shell, the screw can not be effectively connected with the column of shell after the aging of the column of shell, and the stability of the circuit board is poor.

[0003] The patent file with the publication number CN213152653U discloses a switch circuit board fixing structure, when installing the switch circuit board, the switch circuit board is placed in the shell and is supported by the fixed frame, the support rod corresponds with the blind hole on the switch circuit board, then the cover plate is installed in the upper end of the shell, and the elastic lug is located in the first arc-shaped groove, the cooperation of the elastic lug and the first arc-shaped groove can stabilize the cover plate, after the installation of the cover plate, the lower end of the support rod is inserted into the blind hole, and the cooperation of the support rod and the blind hole can pre-position the switch circuit board, then the pin is rotated, in the process of rotation of the pin, the pin drives the movable rod to rotate through the square rod, under the guidance of the arc-shaped protruding part to the fixed rod, the movable rod moves to the middle of the shell in the process of rotation of the pin, and the spring is stretched, when the fixed rod rotates into the second arc-shaped groove, the lower end of the movable rod abuts against the upper end of the switch circuit board below, the movable rod further stabilizes the switch circuit board, and the cooperation of the square rod and the blind hole can prevent the switch circuit board from moving in the front, back, left and right directions in the shell, and the movable rod can prevent the switch circuit board from moving in the up and down directions in the shell. The stable device has a complex structure, which increases the production cost of the shell. At the same time, the switch circuit board cannot be effectively buffered and protected.

[0004] The patent document with the publication number CN220457740U discloses a switch circuit board fixing structure. When installing the circuit board, the prongs on the fixing column are aligned with the through grooves arranged on the fixing holes, then the circuit board is moved downward, the prongs pass through the through grooves on the fixing holes, and the lower end surface of the circuit board is in contact with the upper end surface of the grommet. Then the circuit board is pressed downward, the grommet is pressed by the circuit board to move downward and press the spring, after the circuit board is pressed downward by a certain distance, the prongs enter the sink grooves, the lower end surface of the prongs is higher than the bottom of the sink grooves, then the prongs are rotated in sequence, the prongs are staggered with the through grooves, the grommet moves upward under the elastic force of the spring, the circuit board moves upward, the bottom of the sink grooves of the fixing hole is in contact with the lower end surface of the prongs, then the prongs are rotated in sequence, when the prongs are rotated to the clamping grooves arranged on the bottom of the sink grooves, the circuit board moves upward under the elastic force of the spring below, the prongs are clamped into the clamping grooves, the prongs are clamped and fixed, external vibration is prevented from causing the prongs to rotate and displace, and the fixing of the circuit board is prevented from being invalid. The technical scheme needs to arrange complex type holes on the circuit board, not only the through grooves for the prongs to pass through are needed to be arranged, but also the clamping grooves for clamping the lower end of the prongs are needed to be arranged, when the thickness of the circuit board is small, the part of the circuit board in contact with the prongs has small stress capacity after the circuit board is fixed, and the part of the circuit board near the prongs is prone to be broken. Meanwhile, the type hole processing is relatively troublesome, and the production cost of the circuit board is increased. Practical new type content

[0005] The technical problem to be solved by the utility model is to provide a circuit board mounting structure which can conveniently mount a circuit board, has low cost and can protect the circuit board from shock.

[0006] In order to achieve the above object, the utility model provides a technical scheme:

[0007] The circuit board mounting structure comprises a shell, the upper end of the shell is open, a circuit board is mounted in the shell, the inner wall around the shell is uniformly provided with a supporting plate, the supporting plate comprises a vertical part and a horizontal part which are arranged in sequence from top to bottom, the horizontal part of the supporting plate is fixedly provided with a supporting block, the supporting block is elastic, the vertical part of the supporting plate is fixedly provided with an inclined part, the upper end of the inclined part is inclined to the middle of the shell, the upper end of the inclined part is curved to form a curved part to the outer side of the shell, a clamping cavity is formed between the horizontal part, the vertical part, the inclined part and the curved part of the supporting plate, a long groove is arranged on the inclined part, a push rod is slidably arranged in the long groove, the lower end of the push rod is fixedly arranged in a cushion block, the cushion block is elastic, the circuit board is integrally formed with an ear plate around the circuit board, the ear plate is arranged in the clamping cavity on one side of the circuit board and is supported by the supporting block, the cushion block is arranged between the ear plate and the inner wall of the clamping cavity, the cushion block abuts against the inner wall of the clamping cavity and the ear plate, a cover plate is detachably and fixedly connected to the upper end of the shell, a plurality of pressing rods are fixedly arranged on the lower end of the cover plate, a silica gel pad is fixedly arranged on the lower end of the pressing rod, and the silica gel pad abuts against the upper end surface of the circuit board.

[0008] Specifically, the cushion block is made of rubber material.

[0009] Specific, the bottom plate of the shell is fixed with a plurality of vertical top rod on the upper end, the upper end of the top rod is fixed with silica gel block, the upper end surface of silica gel block is flush with the upper end of the block.

[0010] Specific, the inclined part of the supporting plate has elasticity, the ear plate is located above the curved part of the supporting plate behind the clamping cavity.

[0011] Specific, the cushion block comprises upper and lower vertical part and flat part, the vertical part of the cushion block is located between the ear plate and the vertical part of the supporting plate, and the flat part of the cushion block is located between the ear plate and the flat part of the supporting plate.

[0012] Specific, the push rod comprises vertical part and flat part, the vertical part of the push rod penetrates the long slot, the lower side of the vertical part of the push rod is located in the vertical part of the cushion block, and the flat part of the push rod is located in the flat part of the cushion block.

[0013] Specific, the curved part, inclined part, vertical part and flat part of the supporting plate are integrally formed.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1, the circuit board is located in the shell, and the ear plate is located in the clamping cavity, the ear plate enters the clamping cavity, and the inclined part and the curved part of the supporting plate are deformed to the outside of the shell, and the inclined part and the curved part of the supporting plate restore after the ear plate enters the clamping cavity, at this time, the ear plate cannot be taken out from the clamping cavity, and the circuit board and the shell can be transported to the next process, so that the ear plate is prevented from being taken out from the shell, and the circuit board can be pre-stabilized in the shell.

[0016] 2, by moving the cushion block with elasticity between the ear plate and the inner wall of the clamping cavity, the ear plate is stabilized in the clamping cavity, and the stability of the circuit board is realized.

[0017] 3, the push rod is pushed to move the cushion block between the ear plate and the inner wall of the clamping cavity, and no tool is needed when the circuit board is stabilized, and there is no loose part in the process of stabilizing the circuit board in the shell, so that the installation efficiency of the circuit board can be improved.

[0018] 4, the circuit board mounting structure does not need to punch holes in the circuit board, and the cost of circuit board production can be reduced.

[0019] 5, when the cushion block is moved between the ear plate and the inner wall of the clamping cavity, the block can support the ear plate, and the flat part of the cushion block can enter between the ear plate and the flat part of the supporting plate.

[0020] 6, the top rod, the silica gel pad on the upper end of the top rod, the pressing rod and the silica gel block on the lower end of the pressing rod can further stabilize the circuit board. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 This is a schematic diagram showing the circuit board located inside the housing.

[0022] Figure 2 for Figure 1 A magnified view of region A in the middle.

[0023] Figure 3 for Figure 1 A magnified view of region B in the middle.

[0024] Figure 4 This is a schematic diagram showing the earplate being stabilized within the cavity.

[0025] Figure 5 for Figure 4 A magnified view of region C in the middle.

[0026] Figure 6 This is a schematic diagram of the casing.

[0027] Figure 7 This is a top view of the casing.

[0028] Figure 8 for Figure 7 DD section view.

[0029] The parts in the attached diagram are named as follows: 1. Housing, 2. Circuit board, 3. Ear plate, 4. Support plate, 401. Long slot, 402. Pad block, 403. Push rod, 5. Cover plate, 6. Pressure rod, 7. Top rod, 8. Support block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Example 1: Refer to Figures 1-8 As shown, the circuit board mounting structure includes a housing 1 with an opening at the top, and a circuit board 2 is mounted inside the housing 1.

[0032] A support plate 4 is fixed to the inner wall of the housing 1. The support plate 4 includes a vertical part and a straight part arranged vertically. A support block 8 is fixed to the upper end of the straight part of the support plate 4. The support block 8 is elastic. An inclined part is fixed to the upper end of the vertical part of the support plate 4. The upper end of the inclined part is inclined towards the middle of the housing 1 and curved outwards to form a curved part. A retaining cavity is formed between the straight part, vertical part, inclined part and curved part of the support plate 4. The inclined part of the support plate 4 is elastic. The curved part, inclined part, vertical part and straight part of the support plate 4 are integrally formed.

[0033] A long slot 401 is formed on the inclined part, and a push rod 403 is slidably arranged in the long slot 401. The lower end of the push rod 403 is fixed in a cushion block 402, and the cushion block 402 is elastic and made of rubber. The circuit board 2 is integrally formed with an ear plate 3 around the circuit board 2. The ear plate 3 is arranged in a clamping cavity on one side of the ear plate 3 and is supported by a supporting block 8. The curved part of a supporting plate 4 behind the clamping cavity is arranged above the ear plate 3.

[0034] The cushion block 402 is arranged between the ear plate 3 and the inner wall of the clamping cavity, and the cushion block 402 abuts against the inner wall of the clamping cavity and the ear plate 3. Specifically, the cushion block 402 includes an upright part and a flat part arranged in sequence. The upright part of the cushion block 402 is arranged between the ear plate 3 and the vertical part of the supporting plate 4, and the flat part of the cushion block 402 is arranged between the ear plate 3 and the flat part of the supporting plate 4.

[0035] Referring to Figure 1 and Figure 3 , during the process of installing the circuit board 2 into the shell 1, the ear plate 3 and the circuit board 2 move downward in the shell 1. During the process of the ear plate 3 entering the clamping cavity, the inclined part and the curved part of the supporting plate 4 are deformed outwardly from the shell 1. After the ear plate 3 enters the clamping cavity, the inclined part and the curved part of the supporting plate 4 return. At this time, under the blocking effect of the inclined part, the ear plate 3 cannot be taken out of the clamping cavity. During the process of transporting the circuit board 2 and the shell 1 to the next process, the ear plate 3 can be prevented from being taken out of the shell 1, and the circuit board 2 can be pre-stabilized in the shell 1. Referring to Figure 3 , after the ear plate 3 enters the clamping cavity, the cushion block 402 is lower than the side of the ear plate 3.

[0036] The push rod 403 includes a vertical part and a flat part. The vertical part of the push rod 403 penetrates the long slot 401, and the vertical part of the push rod 403 is arranged in the upright part of the cushion block 402. The flat part of the push rod 403 is arranged in the flat part of the cushion block 402.

[0037] A cover plate 5 is detachably fixed to the upper end of the shell 1. A plurality of pressing rods 6 are fixed to the lower end of the cover plate 5. A silica gel pad is fixed to the lower end of each pressing rod 6, and the silica gel pad abuts against the upper end surface of the circuit board 2.

[0038] After the ear plate 3 is arranged in the clamping cavity, the lower end of the ear plate 3 is supported by the supporting block 8. As shown in Figure 2 , Figure 4 and Figure 5As shown, the spacer 402 is moved by the push rod 403, so that the spacer 402 enters between the ear plate 3 and the inner wall of the clamping cavity, and the spacer 402 abuts against the inner wall of the clamping cavity and the ear plate 3. After the spacer 402 with elasticity is moved to between the ear plate 3 and the inner wall of the clamping cavity, the ear plate 3 is stabilized in the clamping cavity, thereby realizing the stabilization of the circuit board 2. When the spacer 402 is moved to between the ear plate 3 and the inner wall of the clamping cavity, the supporting block 8 can support the ear plate 3, so as to facilitate the flat part of the spacer 402 to enter between the ear plate 3 and the flat part of the supporting plate 4. Meanwhile, the spacer 402 can protect the circuit board 2 from shock. The circuit board 2 mounting structure does not need to punch holes on the circuit board 2, and can reduce the cost of the circuit board 2 production.

[0039] The spacer 402 can be moved to between the ear plate 3 and the inner wall of the clamping cavity by pushing the push rod 403, and the circuit board 2 does not need to be stabilized by using tools, and there is no loose part in the process of stably mounting the circuit board 2 to the shell 1, so that the mounting efficiency of the circuit board 2 can be improved.

[0040] Embodiment two: based on embodiment one, referring to Figure 4 、 Figure 6 、 Figure 7 and Figure 8 As shown, the top plate of the shell 1 is fixed with a plurality of vertical top rods 7, the top rods 7 are fixed with silica gel blocks at the upper ends, and the upper end faces of the silica gel blocks are flush with the upper ends of the supporting blocks 8.

[0041] After the ear plate 3 is located in the clamping cavity, the silica gel blocks of the top rods 7 can support the circuit board 2. After the cover plate 5 is mounted to the upper end of the shell 1, the top rods 7, the silica gel pads at the upper ends of the top rods 7, the pressing rods 6 and the silica gel blocks at the lower ends of the pressing rods 6 can further stabilize the circuit board 2. Meanwhile, the silica gel pads and the silica gel blocks can further protect the circuit board 2 from shock.

[0042] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A circuit board mounting structure comprising a housing (1) having an open upper end, and a circuit board (2) mounted in the housing (1), characterized in that, The inner wall around the shell (1) is fixed with a supporting plate (4), the supporting plate (4) comprises vertically arranged vertical part and flat part, the flat part of the supporting plate (4) is fixed with a supporting block (8) at the upper end, the supporting block (8) is elastic, the vertical part of the supporting plate (4) is fixed with an inclined part at the upper end, the upper end of the inclined part is inclined to the middle direction of the shell (1), the upper end of the inclined part is curved to form a curved part to the outside of the shell (1), the flat part, the vertical part, the inclined part and the curved part of the supporting plate (4) form a clamping cavity, a long slot (401) is arranged on the inclined part, a push rod (403) is slidably arranged in the long slot (401), the lower end of the push rod (403) is fixed in the cushion block (402), the cushion block (402) is elastic, the circuit board (2) is integrally formed with an ear plate (3) around, the ear plate (3) is located in the clamping cavity on one side and supported by the supporting block (8), the cushion block (402) is located between the ear plate (3) and the inner wall of the clamping cavity, the cushion block (402) abuts against the inner wall of the clamping cavity and the ear plate (3), the upper end of the shell (1) is detachably fixed with a cover plate (5), the lower end of the cover plate (5) is fixed with a plurality of pressing rods (6), the lower end of the pressing rod (6) is fixed with a silica gel pad, and the silica gel pad abuts against the upper end surface of the circuit board (2).

2. The circuit board mounting structure according to claim 1, wherein The cushion block (402) is made of rubber material.

3. The circuit board mounting structure according to claim 1, wherein The upper end of the bottom plate of the shell (1) is fixed with a plurality of vertical top rods (7), the upper end of the top rod (7) is fixed with a silica gel block, and the upper end surface of the silica gel block is flush with the upper end of the supporting block (8).

4. The circuit board mounting structure according to claim 1, wherein The inclined part of the supporting plate (4) is elastic, the ear plate (3) is located above the curved part of the supporting plate (4) behind the clamping cavity.

5. The circuit board mounting structure according to claim 1, wherein The cushion block (402) comprises vertically arranged vertical part and flat part, the vertical part of the cushion block (402) is located between the ear plate (3) and the vertical part of the supporting plate (4), and the flat part of the cushion block (402) is located between the ear plate (3) and the flat part of the supporting plate (4).

6. The circuit board mounting structure according to claim 5, wherein The push rod (403) comprises vertical part and flat part, the vertical part of the push rod (403) penetrates through the long slot (401), the lower side of the vertical part of the push rod (403) is located in the vertical part of the cushion block (402), and the flat part of the push rod (403) is located in the flat part of the cushion block (402).

7. The circuit board mounting structure according to claim 1, wherein The curved part, the inclined part, the vertical part and the flat part of the supporting plate (4) are integrally formed.

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