Anti-falling circuit board
By using a crank-slider mechanism with positioning shafts and limiting rings at the four corners of the circuit board, the pushing and counter-pushing forces of the springs are used to absorb the impact inertial force, thus solving the problem of increasing costs by setting springs on both the top and bottom sides of the circuit board. This achieves cost reduction and improved drop resistance.
Patent Information
- Application Number
- CN202520256107.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Existing circuit boards require buffer springs on both the top and bottom sides when the electrical box falls, resulting in a large number of installations, increasing the cost of the circuit boards, and hindering market promotion.
The design employs vertical and horizontal positioning shafts at the four corners of the circuit board, combined with limit rings and connecting rods to form a crank-slider mechanism. This mechanism utilizes the pushing and counter-pushing forces of the springs to absorb the impact inertial force, reducing the number of springs required. Only one spring is needed at each of the four corners to handle both vertical and horizontal impacts.
It effectively absorbs the impact inertial force of the circuit board, reduces the number of springs required, lowers the manufacturing cost of the circuit board, and facilitates market promotion.
Smart Images
Figure CN223758575U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to circuit board technical field especially relates to a fall -resistant circuit board. BACKGROUND
[0002] The fall -resistant circuit board is designed to improve the reliability and durability of electronic equipment when subjected to impact or drop. Such circuit boards are usually applied in application scenarios that require high reliability.
[0003] The existing circuit board is installed in the electrical box, and in order to deal with the inertial impact force from the up-down direction when the electrical box falls to the ground, a buffer spring needs to be arranged on both sides of the circuit board. This arrangement results in a large number of installation requirements for buffer springs, which is not conducive to reducing the implementation cost of the fall -resistant function of the circuit board, increasing the cost of the circuit board, and is not convenient for the market promotion of the circuit board. SUMMARY
[0004] Therefore, the utility model provides a fall -resistant circuit board to solve the problem that a buffer spring needs to be arranged on both sides of the circuit board to deal with the inertial impact force from the up-down direction when the electrical box falls to the ground, resulting in a large number of installation requirements for buffer springs, which is not conducive to reducing the implementation cost of the fall -resistant function of the circuit board.
[0005] The utility model discloses a fall -resistant circuit board, which comprises an electrical box and a circuit board.
[0006] Four vertical positioning shafts are symmetrically arranged at the four corners of the circuit board and are slidably installed through the four through holes, and the upper and lower side walls of the electrical box are locked and fixed by bolts at both ends of the vertical positioning shaft.
[0007] Further, the electrical box is in a rectangular structure, and one long side is a closed structure and the other long side is an open structure.
[0008] Further, the open side of the electrical box is closed by a cover plate.
[0009] Further, four through holes are symmetrically arranged at the four corners of the circuit board, and the four vertical positioning shafts are slidably matched with the four through holes.
[0010] Further, the spring for top pushing and positioning of the force ring is sleeved on the horizontal positioning shaft.
[0011] Further, the first end of the horizontal positioning shaft is welded with a limiting disc, and the compression clamp of the spring for top pushing and positioning of the force ring is clamped between the force ring and the limiting disc.
[0012] The anti-falling circuit board has the following beneficial effects.
[0013] When the electrical box falls by accident, the upward and downward impact inertial force is generated on the circuit board, when the circuit board is driven to slide upward by the impact inertial force, the upward sliding driving force converted from the impact inertial force is transmitted to the four limiting rings on the upper side through the horizontal positioning shaft and the connecting rod, since the four limiting rings on the upper side abut against the upper side wall of the electrical box, the upward sliding driving force transmitted to the four limiting rings on the upper side is converted into downward thrust force and drives the four force rings to slide away from the circuit board by abutting against the upper side wall of the electrical box, and the four force rings compress the four springs, and the impact inertial force is buffered and absorbed, the circuit board is protected from impact, and the anti-falling performance of the circuit board is improved.
[0014] In the above process, each spring can buffer and absorb the upward or downward impact inertial force, so that the four springs arranged at the four corners of the circuit board can perfectly cope with the upward and downward impact of the circuit board, compared with the prior art, the springs do not need to be arranged on the upper and lower sides of each corner to cope with the upward and downward impact of the circuit board, which helps to reduce the number of springs, reduce the implementation cost of the anti-falling function of the circuit board, reduce the cost of the circuit board, and facilitate the market promotion of the circuit board. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced.
[0016] The drawings in the following description only relate to some embodiments of the present application, and are not limited to the present application.
[0017] In the drawings:
[0018] Figure 1 The overall structure of the present application is shown in the schematic diagram;
[0019] Figure 2 The half-section internal structure of the electrical box in the present application is shown in the schematic diagram;
[0020] Figure 3The bottom side structure schematic diagram of the electrical box in a half-partial state is shown.
[0021] Figure 4 The structure schematic diagram of the circuit board is shown.
[0022] Figure 5 The dismounting state schematic diagram of the vertical positioning shaft is shown.
[0023] List of reference signs:
[0024] 1, electrical box; 101, cover plate;
[0025] 2, circuit board; 201, vertical positioning shaft; 202, horizontal positioning shaft; 203, stress ring; 204, limiting ring; 205, connecting rod. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme of the utility model will be described clearly and completely below by combining the drawings of the utility model embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0027] Please refer to Figures 1 to 5 ;
[0028] Embodiment one:
[0029] The utility model provides a kind of anti-falling circuit board, comprising: electrical box 1 and circuit board 2, electrical box 1 inside sliding plug-in mounting has circuit board 2;
[0030] Four vertical positioning shafts 201 are symmetrically slidably installed at the positions of the four corners of the circuit board 2, and the two ends of the vertical positioning shafts 201 are locked and fixed with the upper and lower side walls of the electrical box 1 by bolts respectively;Horizontal positioning shafts 202 are fixed at the positions of the two ends of the two long sides of the circuit board 2, and stress rings 203 are slidably sleeved on the horizontal positioning shafts 202 and are positioned by spring pushing;Two limiting rings 204 are symmetrically slidably installed on the vertical positioning shafts 201, and two connecting rods 205 are symmetrically connected between the stress rings 203 and the two limiting rings 204 on the vertical positioning shafts 201;In the normal use state of the electrical box 1 without falling to the ground, the two limiting rings 204 on the vertical positioning shafts 201 are in abutting contact with the upper and lower side walls of the electrical box 1 respectively.
[0031] The two limiting rings 204 and the force ring 203 at the corresponding positions and the two connecting rods 205 jointly form two crank slider mechanisms, through which, when the force ring 203 is slid along the horizontal positioning shaft 202 towards the circuit board 2, the two limiting rings 204 at the corresponding positions are driven to slide away from each other along the vertical positioning shaft 201, and sliding any one of the limiting rings 204 towards the circuit board 2 can drive the force ring 203 to slide away from the circuit board 2.
[0032] Preferably, the electrical box 1 has a rectangular structure, and one long side is a closed structure and the other long side is an open structure.
[0033] Preferably, the open side of the electrical box 1 is closed by a cover plate 101.
[0034] Preferably, the circuit board 2 is symmetrically provided with four through holes at the four corners, and the four vertical positioning shafts 201 are correspondingly and slidably penetrated through the four through holes.
[0035] Based on the first embodiment, the second embodiment is as follows:
[0036] The spring for pushing and positioning the force ring 203 is sleeved on the horizontal positioning shaft 202.
[0037] The first end of the horizontal positioning shaft 202 is welded with a limiting disc, and the spring for pushing and positioning the force ring 203 is compressed and clamped between the force ring 203 and the limiting disc.
[0038] In the normal use state of the electrical box 1 without falling to the ground, the spring pushes the force ring 203 towards the circuit board 2 and pushes the force ring 203 against the long side of the circuit board 2 at the corresponding position, at this time, the force ring 203 can push and drive the two limiting rings 204 at the corresponding positions to slide away from each other and respectively abut against the upper and lower side walls of the electrical box 1, and the pushing and retaining force of the spring can be transmitted to the two limiting rings 204 through the two connecting rods 205 between the two limiting rings 204 and the force ring 203, so that the eight limiting rings 204 can be respectively retained in the middle position of the height space in the electrical box 1 by the pushing and retaining force of the four springs in the normal state.
[0039] When the electrical box 1 falls by accident, the upward and downward impact inertial forces are generated on the circuit board 2, when the circuit board 2 is driven to slide upward by the impact inertial forces, the upward sliding driving force converted by the impact inertial forces is transmitted to the four upper limiting rings 204 through the horizontal positioning shaft 202 and the connecting rod 205, since the four upper limiting rings 204 are in abutting contact with the upper side wall of the electrical box 1, the upward sliding driving force transmitted to the four upper limiting rings 204 can be converted into downward counteracting force by the abutting counteraction of the upper side wall of the electrical box 1 and drive the four force receiving rings 203 to slide away from the circuit board 2 by compressing the four springs, similarly, when the circuit board 2 is driven to slide downward by the impact inertial forces, the four lower limiting rings 204 can also drive the four force receiving rings 203 to slide away from the circuit board 2 by compressing the four springs, in the above process, the four force receiving rings 203 compress the four springs to buffer and absorb the impact inertial forces on the circuit board 2, prevent the impact on the circuit board 2 and improve the anti-falling performance of the circuit board 2;
[0040] In the above process, each spring can buffer and absorb the upward or downward impact inertial force, so that the utility model only needs to configure one spring at each corner position of the circuit board 2 to perfectly cope with the upward and downward impact on the circuit board 2, compared with the prior art, it is not necessary to configure springs on the upper and lower sides of each corner position to cope with the upward and downward impact on the circuit board 2, which helps to reduce the number of springs, reduce the implementation cost of the anti-falling function of the circuit board 2, reduce the cost of the circuit board 2 and facilitate the market promotion of the circuit board 2.
[0041] The working principle of the embodiment is that the two limiting rings 204, the force receiving ring 203 and the two connecting rods 205 at the corresponding positions jointly form two crank slider mechanisms, through the two mechanisms, the force receiving ring 203 sliding along the horizontal positioning shaft 202 towards the circuit board 2 can drive the two limiting rings 204 to slide away from each other along the vertical positioning shaft 201, and sliding any one limiting ring 204 towards the circuit board 2 can drive the force receiving ring 203 to slide away from the circuit board 2;
[0042] In the normal use state of the electrical box 1 without falling to the ground, the spring pushes the force receiving ring 203 towards the circuit board 2 and pushes the force receiving ring 203 against the long side of the circuit board 2 at the corresponding position, at this time, the force receiving ring 203 can push the two limiting rings 204 at the corresponding positions to slide away from each other upward and downward and be in abutting contact with the upper and lower side walls of the electrical box 1, the pushing and retaining force of the spring can be transmitted to the two limiting rings 204 through the two connecting rods 205 between the two limiting rings 204 and the force receiving ring 203, so that the eight upper and lower limiting rings 204 of the utility model can be pushed and retained in the middle position of the height space inside the electrical box 1 by the pushing and retaining force of the four springs in the normal state;
[0043] When the electrical box 1 falls by accident, the upward and downward direction impact inertia force is generated on the circuit board 2, when the circuit board 2 is driven to slide upward by the impact inertia force, the upward sliding driving force converted by the impact inertia force is transmitted to the four limiting rings 204 on the upper side through the horizontal positioning shaft 202 and the connecting rod 205, since the four limiting rings 204 on the upper side abut against the upper side wall of the electrical box 1, then the upward sliding driving force transmitted to the four limiting rings 204 on the upper side can be converted into downward counterforce by the abutting counterforce of the upper side wall of the electrical box 1 and drives the four force receiving rings 203 to slide away from the circuit board 2 by compressing the four springs, similarly, when the circuit board 2 is driven to slide downward by the impact inertia force, the four limiting rings 204 on the lower side can also drive the four force receiving rings 203 to slide away from the circuit board 2 by compressing the four springs, in the above process, the four force receiving rings 203 compress the four springs to buffer and absorb the impact inertia force received by the circuit board 2, and protect the circuit board 2 from impact.
[0044] In this document, the following points need to be noted:
[0045] 1. The embodiment of the utility model relates to only the structure involved in the embodiment of the utility model, and other structures can refer to the usual design.
[0046] 2. In the case of no conflict, the embodiments and the features in the embodiments of the utility model can be combined to obtain new embodiments.
[0047] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.
Claims
1. A circuit board resistant to damage from a drop, comprising: An electrical box (1) and a circuit board (2), the circuit board (2) is slidingly installed inside the electrical box (1); Characterized in that four vertical positioning shafts (201) are symmetrically slidingly installed at the four corners of the circuit board (2), the two ends of the vertical positioning shaft (201) are locked and fixed with the upper and lower side walls of the electrical box (1) through bolts respectively, the two ends of the two long sides of the circuit board (2) are fixed with horizontal positioning shafts (202), the horizontal positioning shaft (202) is slidingly sleeved with a force ring (203) which is positioned by a spring; two limiting rings (204) are symmetrically slidingly installed on the vertical positioning shaft (201), two connecting rods (205) are symmetrically connected between the force ring (203) and the two limiting rings (204) on the vertical positioning shaft (201); in the normal use state of the electrical box (1) without falling to the ground, the two limiting rings (204) on the vertical positioning shaft (201) respectively abut against the upper and lower side walls of the electrical box (1).
2. The circuit board of claim 1, wherein, The electrical box (1) is in a rectangular structure, and one long side is a closed structure and the other long side is an open structure.
3. The circuit board of claim 2, wherein, The opening side of the electrical box (1) is closed with a cover plate (101).
4. The circuit board of claim 1 wherein, Four through holes are symmetrically provided at the four corners of the circuit board (2), and the four vertical positioning shafts (201) correspondingly slidingly fit through the four through holes.
5. The circuit board of claim 1 wherein, The spring for positioning the force ring (203) is sleeved on the horizontal positioning shaft (202).
6. The circuit board of claim 5 wherein, The first end of the horizontal positioning shaft (202) is welded with a limiting disc, and the spring for positioning the force ring (203) is compressed and clamped between the force ring (203) and the limiting disc.