Circuit board protection device

Abstract

The utility model relates to a circuit board protection device which comprises an upper protection shell, a circuit board and a lower protection shell, the upper protection shell and the lower protection shell are clamped together, the circuit board is installed between the upper protection shell and the circuit board, a clamping cylinder is installed on the inner side face of the upper protection shell in a threaded connection mode, and an opening is formed in the end portion of the clamping cylinder. An insertion block is installed on the inner side face of the lower protection shell, a protrusion is arranged at the end of the insertion block and can be inserted into the opening, a second installation rib is arranged on the inner side face of the upper protection shell, and a first installation rib is arranged on the inner side face of the lower protection shell; the surface of the first mounting rib and the surface of the second mounting rib are each provided with a stabilizing structure for clamping and stabilizing the circuit board, and each stabilizing structure comprises a supporting body, a supporting round block, a first telescopic spring and a cross-shaped groove. The circuit board protection device solves the problems that an existing circuit board protection device cannot effectively prevent impact force from damaging a circuit board and cannot quickly take out the circuit board.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board protection devices, in particular to a circuit board protection device. Background Art

[0002] Circuit boards are generally welded together to form a circuit by welding various electrical components. However, the circuit boards themselves are relatively fragile. If the circuit board falls during transportation, the components welded on the surface of the circuit board may be damaged or fall off. Therefore, the circuit board needs to be protected. However, existing protection devices all install the circuit board in a shell. This simple protection cannot provide shock absorption and protection. Therefore, although it can prevent the circuit board from being damaged by direct impact, it cannot prevent the components on the surface of the circuit board from falling off the circuit board due to vibration caused by the impact force.

[0003] In order to solve the above technical problems, Chinese patent CN205793799U, the circuit board protection device points out that the circuit board can be fully protected from shock by limiting the front and back, left and right positions of the circuit board, symmetrically pressing the top and bottom, pre-pressing the core chip, and isolating the aluminum shell source, thereby improving the shock and drop resistance of the power station circuit board, extending the service life of the circuit board, and reducing maintenance costs. Although the above patent can improve the drop resistance of the circuit board, it still has certain shortcomings. The circuit board is installed relatively fixedly. Although it is isolated, the impact force cannot be effectively isolated. Secondly, the patent is more cumbersome during disassembly, and it is not convenient to quickly remove the circuit board, thereby prolonging the time.

[0004] Therefore, in order to more effectively protect the circuit board and reduce the damage to the circuit board caused by impact force, and secondly to facilitate the disassembly of the protective device so that the circuit board can be removed in a short time, a circuit board protection device is proposed to solve the technical problems existing in the above-mentioned prior art. Utility Model Content

[0005] In view of the deficiencies of the prior art, the present invention provides a circuit board protection device, which solves the problems that the prior circuit board protection device cannot effectively prevent the circuit board from being damaged by impact force and cannot quickly remove the circuit board.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circuit board protection device, comprising an upper protective shell, a circuit board, and a lower protective shell, the upper protective shell and the lower protective shell are clamped together, and the circuit board is installed between the upper protective shell and the circuit board, a clamping cylinder is installed on the inner side surface of the upper protective shell through a threaded connection, an opening is opened at the end of the clamping cylinder, and an insert block is installed on the inner side surface of the lower protective shell, and a protrusion is provided at the end of the insert block, which can be inserted into the opening, a second mounting rib is provided on the inner side surface of the upper protective shell, and a first mounting rib is provided on the inner side surface of the lower protective shell, and a stable structure for clamping the circuit board firmly is installed on the surface of the first mounting rib and the surface of the second mounting rib, and the stable structure includes a support body, a support round block, a first telescopic spring, and a cross groove; a cross groove is provided at the lower end of the support body, and the cross groove can be clamped on the surface of the second mounting rib or the surface of the first mounting rib, an opening is provided inside the support body, and a first telescopic spring is installed in the opening, and a support round block is installed on the upper end of the first telescopic spring, and the surface of the support round block is at a distance from the opening surface.

[0007] Through the above technical solution, further, a rubber pad is installed on the upper end of the supporting round block, and a clamping structure is also provided on the inner side of the cross groove.

[0008] Furthermore, the clamping structure includes a conical clamping block, a second telescopic spring, and a conical slot; the conical slot is opened on the surface of the cross groove, and the second telescopic spring is installed in the cross groove, and the end of the second telescopic spring is connected to the conical clamping block.

[0009] As a preferred technical solution, the lower end of the conical clamping block is chamfered.

[0010] Furthermore, a clamping protrusion is provided on the surface of the lower protective shell, and a clamping plate is provided on the surface of the upper protective shell. The clamping protrusion can be clamped in the clamping plate. A bolt hole is also provided on the upper end surface of the upper protective shell, and a bolt can be installed in the bolt hole. The bolt is connected to the clamping cylinder.

[0011] As a preferred technical solution, the surface of the upper protective shell is symmetrically provided with openings, and the circuit board is provided with a connecting port, which can pass through the openings.

[0012] Furthermore, a mounting foot is provided on the side surface of the lower protective shell, and a placement plate is provided on the inner side surface of the lower protective shell.

[0013] As a preferred technical solution, a rubber pad is provided on the side of the placement plate, the circuit board is in contact with the rubber pad, and a distance is left between the placement plate and the edge of the circuit board.

[0014] Compared with the prior art, the present invention provides a circuit board protection device with the following beneficial effects:

[0015] 1. First, place the circuit board on the rubber pad on the placement board. At this time, the edge of the circuit board does not touch the rubber pad (refer to the rubber pad). Figure 5 It can be seen that there is an L-shaped slot on the placement plate) and one side contacts, and then the clamping cylinder is clamped with the protrusion on the plug-in block, and the clamping protrusion is clamped with the clamping plate. At this time, the circuit board is clamped by the supporting cylinder. When the protective device falls, since the supporting cylinder is not in direct contact with the side wall of the opening, there is room for buffering, which reduces the impact force. Secondly, the circuit board will contact the rubber pad on the placement plate. At this time, the rubber pad can reduce the damage to the circuit board caused by the impact force. Therefore, the above solves the problem that the existing circuit board protection device cannot effectively prevent the impact force from damaging the circuit board and cannot quickly remove the circuit board.

[0016] 2. The support body is not integrated with the upper protective shell or the lower protective shell, and can be moved and adjusted by itself, so it can meet the support of circuit boards of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a circuit board protection device of the present utility model;

[0018] Figure 2 This is a schematic diagram of the clamping state of the upper protective shell and the lower protective shell of a circuit board protection device of the present invention;

[0019] Figure 3 This is a schematic diagram of the top view of a circuit board protection device of the present invention;

[0020] Figure 4 This is a schematic diagram of the protective shell structure of a circuit board protection device of the present utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the lower protective shell of a circuit board protection device of the utility model;

[0022] Figure 6 This is a schematic diagram of the support structure of a circuit board protection device of the present utility model;

[0023] Figure 7 This is a schematic cross-sectional view of a support body of a circuit board protection device according to the present invention;

[0024] Figure 8 The figure is a bottom view structural diagram of a support body of a circuit board protection device of the present invention.

[0025] In the figure: 1. Upper protective shell; 2. Circuit board; 3. Lower protective shell; 4. Mounting foot; 5. Bolt hole; 6. Insert block; 7. Placement plate; 8. First mounting rib; 9. Snap-fit ​​protrusion; 10. Second mounting rib; 11. Opening; 12. Snap-fit ​​plate; 13. Clamping cylinder; 14. Support body; 15. Supporting round block; 16. First telescopic spring; 17. Cross groove; 18. Conical clamping block; 19. Second telescopic spring; 20. Conical slot. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example

[0028] See also Figure 1-8 The utility model provides the following technical solutions: a circuit board protection device, comprising an upper protective shell 1, a circuit board 2, and a lower protective shell 3. The upper protective shell 1 and the lower protective shell 3 are clamped together, and the circuit board 2 is installed between the upper protective shell 1 and the circuit board 2. A clamping cylinder 13 is installed on the inner side of the upper protective shell 1 through a threaded connection. An opening is opened at the end of the clamping cylinder 13, and an insert block 6 is installed on the inner side of the lower protective shell 3. The end of the insert block 6 is provided with a protrusion, which can be inserted into the opening. A second mounting rib 10 is provided on the inner side of the upper protective shell 1, and a first mounting rib is provided on the inner side of the lower protective shell 3. 8. A stable structure for firmly clamping the circuit board 2 is installed on the surface of the first mounting rib 8 and the surface of the second mounting rib 10. The stable structure includes a support body 14, a support round block 15, a first telescopic spring 16, and a cross groove 17; a cross groove 17 is provided at the lower end of the support body 14, and the cross groove 17 can be clamped on the surface of the second mounting rib 10 or the surface of the first mounting rib 8. An opening is provided inside the support body 14, and a first telescopic spring 16 is installed in the opening. A support round block 15 is installed on the upper end of the first telescopic spring 16, and the surface of the support round block 15 is at a distance from the opening surface.

[0029] In this embodiment, the specific working principle is as follows: the circuit board protection device is specifically placed on the rubber pad on the L-shaped opening of the placement plate 7. At this time, the edge of the circuit board 2 will not contact the rubber pad on the other side. Then press the upper protective shell 1 downward to make the clamping cylinder 13 engage with the protrusion on the plug block 6. Then, the clamping plate 12 is clamped with the clamping protrusion 9. At this time, the upper protective shell 1 and the lower protective shell 3 are as shown in FIG. Figure 2As shown, the corresponding two groups of support cylinders 15 clamp the circuit board 2. Secondly, the support cylinders 15 do not contact the opening surface inside the support body 14. This is mainly to ensure that when the protective device falls, the distance will have a better buffering force, and through the action of the first telescopic spring 16, the impact of the impact force on the circuit board 2 can be reduced. Secondly, through the action of the rubber pad, the damage to the circuit board 2 caused by the impact force when the protective device falls can be greatly reduced. Secondly, it should be noted that the support body 14 in this protective device is an independent structure, so it can clamp and support circuit boards 2 of different sizes, thereby improving the applicability of this protective device. According to the above, this protective device solves the problem that the existing circuit board protection device cannot effectively prevent the impact force from damaging the circuit board and cannot quickly remove the circuit board.

[0030] According to the above, in order to effectively protect the circuit board 2 , a rubber pad is installed on the upper end of the supporting round block 15 , and a clamping structure for firmly clamping the support body 14 is provided on the inner side of the cross groove 17 .

[0031] According to the above, how the clamping structure realizes the stable connection of the support body 14 can be found in detail. Figure 4 and Figure 8 It can be seen that the clamping structure includes a conical clamping block 18, a second telescopic spring 19, and a conical slot 20; the conical slot 20 is opened on the surface of the cross groove 17, and the second telescopic spring 19 is installed in the cross groove 17, and the end of the second telescopic spring 19 is connected to the conical clamping block 18. The conical clamping block 14 can clamp the first mounting rib 8 through the action of the second telescopic spring 19, thereby achieving a stable connection of the support body 14 through the clamping force.

[0032] In order to facilitate the installation of the support body 14, the lower end of the conical clamping block 18 is chamfered. When the support body 14 is pressed, the chamfer can drive the conical clamping block 18 to move into the conical groove 20, thereby facilitating the clamping of the support body 14 on the first mounting rib 8.

[0033] In order to avoid the existing clamping cylinder 13 is formed integrally with the protective shell, if the clamping cylinder 13 is damaged when the protective device falls, the protective shell as a whole needs to be replaced. Therefore, in order to avoid the occurrence of such a phenomenon, please refer to the following for details. Figure 4 and Figure 5 It can be seen that a clamping protrusion 9 is provided on the surface of the lower protective shell 3, and a clamping plate 12 is provided on the surface of the upper protective shell 1. The clamping protrusion 9 can be clamped in the clamping plate 12. A bolt hole 5 is also provided on the upper end surface of the upper protective shell 1. A bolt can be installed in the bolt hole 5. The bolt is connected to the clamping cylinder 13. The clamping cylinder 13 is installed on the inner side surface of the upper protective shell 1 by the bolt. When damage occurs, there is no need to replace the entire body, which is more convenient.

[0034] See Figure 1 as well as Figure 4 It can be seen that openings 11 are symmetrically provided on the surface of the upper protective shell 1 , and a connecting port is provided on the circuit board 2 , which can pass through the opening 11 .

[0035] See Figure 5 It can be seen that a mounting foot 4 is provided on the side surface of the lower protective shell 3 , and a placement plate 7 is provided on the inner side surface of the lower protective shell 3 .

[0036] In order to reduce the risk of damage to the circuit board 2 caused by the impact force, a rubber pad is provided on the side of the placement plate 7. The circuit board 2 contacts the rubber pad, and a distance is left between the placement plate 7 and the edge of the circuit board 2. Figure 5 It can be seen that an L-shaped opening is provided on the placement plate 7, and a rubber pad is installed on the L-shaped opening.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A circuit board protection device, comprising an upper protective shell (1), a circuit board (2), and a lower protective shell (3), wherein the upper protective shell (1) and the lower protective shell (3) are snap-fitted together, and the circuit board (2) is mounted between the upper protective shell (1) and the circuit board (2), characterized in that: A clamping cylinder (13) is installed on the inner side of the upper protective shell (1) through a threaded connection, and an opening is formed at the end of the clamping cylinder (13). An insert block (6) is installed on the inner side of the lower protective shell (3), and a protrusion is provided at the end of the insert block (6). The protrusion can be inserted into the opening. A second mounting rib (10) is provided on the inner side of the upper protective shell (1), and a first mounting rib (8) is provided on the inner side of the lower protective shell (3). Stable devices for firmly clamping the circuit board (2) are installed on the surfaces of the first mounting rib (8) and the second mounting rib (10). The invention discloses a solid structure, wherein the solid structure comprises a support body (14), a support round block (15), a first telescopic spring (16), and a cross groove (17); a cross groove (17) is provided at the lower end of the support body (14), and the cross groove (17) can be clamped on the surface of the second mounting rib (10) or the surface of the first mounting rib (8); an opening is provided inside the support body (14), and the first telescopic spring (16) is installed in the opening; a support round block (15) is installed at the upper end of the first telescopic spring (16), and the surface of the support round block (15) is spaced apart from the opening surface.

2. A circuit board protection device according to claim 1, characterized in that: A rubber pad is installed on the upper end of the supporting round block (15), and a clamping structure is also provided on the inner side of the cross groove (17).

3. A circuit board protection device according to claim 2, characterized in that: The clamping structure comprises a conical clamping block (18), a second telescopic spring (19), and a conical slot (20); the conical slot (20) is provided on the surface of the cross groove (17), and the second telescopic spring (19) is installed in the cross groove (17); the end of the second telescopic spring (19) is connected to the conical clamping block (18).

4. A circuit board protection device according to claim 3, characterized in that: The lower end of the tapered clamping block (18) is provided with a chamfer.

5. The circuit board protection device according to claim 1, characterized in that: A clamping protrusion (9) is provided on the surface of the lower protective shell (3), and a clamping plate (12) is provided on the surface of the upper protective shell (1). The clamping protrusion (9) can be clamped in the clamping plate (12). A bolt hole (5) is also provided on the upper end surface of the upper protective shell (1). A bolt can be installed in the bolt hole (5), and the bolt is connected to the clamping cylinder (13).

6. The circuit board protection device according to claim 1, characterized in that: The upper protective shell (1) is symmetrically provided with openings (11) on its surface, and a connecting port is provided on its circuit board (2), and the connecting port can pass through the opening (11).

7. The circuit board protection device according to claim 1, characterized in that: A mounting foot (4) is provided on the side surface of the lower protective shell (3), and a placement plate (7) is provided on the inner side surface of the lower protective shell (3).

8. The circuit board protection device according to claim 7, characterized in that: A rubber pad is provided on the side of the placement plate (7), the circuit board (2) is in contact with the rubber pad, and a distance is left between the placement plate (7) and the edge of the circuit board (2).

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