Dustproof circuit board with good protection effect

Abstract

The utility model relates to a dustproof circuit board with good protection effect, which comprises a circuit board body, the upper end of the circuit board body is covered with a dustproof cover, the circuit board body is provided with a plurality of through holes, the lower end face of the dustproof cover is fixedly connected with a plurality of fixing columns, the lower ends of the fixing columns penetrate through the through holes, and the fixing columns are fixedly connected with the circuit board body. Sliding grooves penetrating through the lower ends of the fixing columns are formed in the fixing columns, a bottom plate is arranged below the circuit board body, and buffering assemblies are arranged between the bottom plate and the sliding grooves in a matched mode. According to the utility model, the protection function of the dustproof cover is enhanced through the buffer assembly, so that the dustproof effect is realized and the protection effect on the circuit board body is enhanced at the same time.

Description

Technical Field

[0001] The utility model relates to circuit board assembly, in particular to a dustproof circuit board with good protection effect. Background Art

[0002] Circuit board, also known as circuit board, is an important component of CNC equipment. Circuit board makes circuit miniaturized and intuitive, and plays an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. During long-term use, dust is easily accumulated on the surface of the circuit board, and there may be conductive impurities in the dust. These conductive impurities are easy to form short circuits on the circuit board, which can cause the circuit board to burn and easily reduce the heat dissipation performance of the circuit board.

[0003] In response to the above problems, manufacturers generally install dust covers on circuit boards to effectively prevent dust from accumulating on the surface of the circuit boards. However, since the existing dust covers have a single function and can only reflect the dust-proof function, the protective effect on the circuit boards is weak. Therefore, how to enhance the protective effect on the circuit boards on the basis of dust-proof has become an urgent problem to be solved. Utility Model Content

[0004] The utility model provides a dustproof circuit board with good protection effect, which solves the above problems existing in the use process of the prior art.

[0005] The technical solution of the utility model is achieved as follows: a dustproof circuit board with good protection effect, including a circuit board body, a dust cover is provided on the upper end cover of the circuit board body, a plurality of through holes are provided on the circuit board body, a plurality of fixing columns are fixedly connected to the lower end surface of the dust cover, the lower ends of the fixing columns pass through the through holes, a sliding groove passing through the lower end is provided in the fixing columns, a bottom plate is provided below the circuit board body, and a buffer assembly is provided between the bottom plate and each sliding groove.

[0006] The utility model is further configured as follows: the buffer assembly includes a sliding rod and a compression spring, a plurality of first threaded holes are penetrated through the bottom plate, an external thread is opened on the lower end side wall of the sliding rod, the sliding rod is threadedly connected to the first threaded hole through the external thread, the upper end of the sliding rod extends into and is slidably connected to the sliding groove, and the compression spring is arranged between the sliding rod and the sliding groove.

[0007] The utility model is further configured as follows: the bottom plate is provided with a rotation groove on the outside of the threaded hole, a soft rubber sleeve is rotatably arranged in the rotation groove, a metal threaded section is fixedly connected to the upper end of the soft rubber sleeve, a fixed ring groove is provided on the lower end of the fixed column on the outside of the sliding groove, an internal thread is provided on the outer side wall of the fixed ring groove, and the metal threaded section is threadedly connected to the internal thread.

[0008] The utility model is further configured as follows: a limiting groove is provided at the lower end of the rotating groove, the lower end of the soft rubber sleeve is fixedly connected to a limiting ring, and the limiting ring is rotatably connected in the limiting groove.

[0009] The utility model is further configured as follows: the dust cover includes a protective cavity and a dustproof cavity, the electrical components on the circuit board body are covered by the protective cavity, the dustproof cavity is symmetrically opened on both sides of the protective cavity, the dustproof cavity is fixedly connected with a dustproof filter on the side close to the protective cavity, and the dustproof cavity is provided with a plurality of heat dissipation holes on a side wall away from the protective cavity.

[0010] The utility model is further configured as follows: an observation port is provided at the upper end of the dust cover, the dust cover is fixedly connected with a buttress in the observation port, a baffle is provided on the buttress, a plurality of second threaded holes are provided on the buttress, a plurality of fixing screws are cooperatively provided on the baffle, and the fixing screws are threadedly connected in the second threaded holes.

[0011] The utility model is further configured as follows: an antistatic coating is coated on the outer side wall of the dust cover.

[0012] In summary, the beneficial effects of the utility model are:

[0013] When the circuit board body is impacted, the dust cover will apply axial pressure to the buffer assembly. During this process, the buffer assembly will buffer the impact force on the circuit board body, thereby preventing the electrical components and circuits on the circuit board body from being damaged due to collision, impact and other factors, thereby enhancing the protective effect of the dust cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a right view structural schematic diagram of the utility model;

[0017] Figure 3 for Figure 2 Schematic diagram of the AA section structure;

[0018] Figure 4 for Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0019] Figure 5 for Figure 4 Schematic diagram of the structure after removing the soft rubber cover;

[0020] Figure 6 This is a schematic diagram of the structure of the dust cover in the utility model.

[0021] Figure 7 A schematic diagram of the structure of the dust cover of the utility model after removing the baffle;

[0022] Figure 8 for Fig. 9 Schematic diagram of the structure viewed from above;

[0023] Fig. 9 for Figure 8 A partial enlarged schematic diagram of point C in the middle;

[0024] Fig.10 This is a schematic diagram of the structure of the bottom plate of the utility model;

[0025] Fig.11 for Fig.10 The partial enlarged schematic diagram of point D in the middle;

[0026] Fig.12 This is a schematic diagram of the structure of the soft rubber sleeve in the utility model;

[0027] Fig.13 It is a structural schematic diagram of the circuit board body in the utility model.

[0028] Numbers in the figure: 1 circuit board body, 11 through hole, 2 dust cover, 21 protection cavity, 22 dust cavity, 23 dust filter, 24 heat dissipation hole, 25 observation port, 26 support, 27 second threaded hole, 28 baffle, 29 fixed screw, 3 bottom plate, 31 first threaded hole, 32 rotation groove, 33 limit groove, 4 sliding rod, 41 external thread, 5 compression spring, 6 soft rubber sleeve, 61 metal thread segment, 62 limit ring, 71 fixed column, 72 sliding groove, 73 fixed ring groove, 74 internal thread, 75 limit sleeve. DETAILED DESCRIPTION

[0029] The following will be combined with the attached embodiment of the utility model Figure 1-13 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example:

[0031] like Figures 1 to 13As shown, the utility model discloses a dustproof circuit board with good protection effect, including a circuit board body 1, a dust cover 2 is provided on the upper end of the circuit board body 1, and an antistatic coating is coated on the outer side of the dust cover 2 to avoid static electricity accumulation on the surface of the dust cover 2, which causes electromagnetic interference to the circuit on the circuit board body 1, and a plurality of through holes 11 are provided on the circuit board body 1, and a plurality of fixing columns 71 are fixedly connected to the lower end surface of the dust cover 2, and the lower end of the fixing column 71 passes through the through hole 11. Furthermore, a sliding groove 72 passing through the lower end is provided in the fixing column 71, and a bottom plate 3 is provided below the circuit board body 1, and a buffer component is provided between the bottom plate 3 and each sliding groove 72.

[0032] The dust cover 2 includes a protective cavity 21 and a dustproof cavity 22. The electrical components on the circuit board body 1 are all covered by the protective cavity 21. The dustproof cavity 22 is symmetrically arranged on both sides of the protective cavity 21. The dustproof cavity 22 is fixedly connected with a dustproof filter 23 on the side close to the protective cavity 21. The dustproof cavity 22 is provided with a plurality of heat dissipation holes 24 on the side wall away from the protective cavity 21. Through the above structure, the protective cavity 21 can protect the electrical components on the circuit board from interference from other components. The dustproof cavity 22 and the dustproof filter 23 can ensure the good heat dissipation effect of the circuit board body 1 on the basis of ensuring the dustproof effect, thereby avoiding circuit failure caused by overheating of the circuit board body 1.

[0033] Furthermore, the buffer assembly includes a sliding rod 4 and a compression spring 5. The specific structure of the buffer assembly is as follows: a plurality of first threaded holes 31 are formed through the bottom plate 3, an external thread 41 is formed on the lower end side wall of the sliding rod 4, the sliding rod 4 is threadedly connected to the first threaded hole 31 through the external thread 41, the upper end of the sliding rod 4 extends into and is slidably connected to the sliding groove 72, and the compression spring 5 is arranged between the sliding rod 4 and the sliding groove 72;

[0034] Furthermore, the base plate 3 is provided with a rotating groove 32 on the outer side of the threaded hole, and a soft rubber sleeve 6 is rotatably arranged in the rotating groove 32, and the upper end of the soft rubber sleeve 6 is fixedly connected with a metal threaded section 61, and the lower end of the fixed column 71 is provided with a fixed ring groove 73 on the outer side of the sliding groove 72, and an internal thread 74 is provided on the outer wall of the fixed ring groove 73, and the metal threaded section 61 is threadedly connected to the internal thread 74; and, in order to prevent the soft rubber sleeve 6 from falling off the base plate 3, a limiting groove 33 is provided at the lower end of the rotating groove 32, and the lower end of the soft rubber sleeve 6 is fixedly connected with a limiting ring 62, and the limiting ring 62 is rotatably connected in the limiting groove 33.

[0035] Through the above structure, when the circuit board body 1 receives an impact, the dust cover 2 applies axial pressure to the sliding column and the soft rubber sleeve 6 through the fixed column 71, and the sliding column moves into the sliding groove 72 and squeezes the compression spring 5. In this process, the soft rubber sleeve 6 will also share a certain impact force and deform, thereby shock absorbing and buffering the impact received by the circuit board body 1, and preventing the electrical components and circuits on the circuit board body 1 from being damaged due to impact and collision. At the same time, the soft rubber sleeve 6 also acts as a damping effect in the buffer assembly, which can effectively reduce the ability of the fixed column 71 and the moving column to transmit vibration, thereby further improving the shock absorption effect and extending the service life of the buffer assembly.

[0036] The installation method of the utility model is as follows: the dust cover 2 is placed on the upper end of the circuit board body 1, and the fixing column 71 is aligned with the through hole 11 and inserted therein with an interference fit; then the soft rubber sleeve 6 is threadedly connected to the fixing ring groove 73 at the lower end of the fixing column 71, and then the limiting ring 62 at the lower end of the soft rubber sleeve 6 is pressed to fix the soft rubber sleeve 6 in the rotating groove 32, and finally the sliding column is inserted into the sliding groove 72 and fixed in the first threaded hole 31 to complete the installation.

[0037] It should be noted here that Figure 6 As shown, the fixing column 71 in this embodiment does not move in the through hole 11, so a limiting sleeve 75 is fixedly connected to the outer wall of the fixing column 71 in this embodiment, and the upper end of the limiting sleeve 75 is abutted against the upper end surface of the circuit board body 1, thereby limiting the fixing column 71 and preventing it from moving up and down in the through hole 11.

[0038] In addition, an observation port 25 is provided at the upper end of the dust cover 2, and a support 26 is fixedly connected to the dust cover 2 in the observation port 25, a baffle 28 is provided on the support 26, a plurality of second threaded holes 27 are provided on the support 26, a plurality of fixing screws 29 are provided on the baffle 28, and the fixing screws 29 are threadedly connected in the second threaded holes 27. If a simple inspection of the circuit board body 1 is required, the entire dust cover 2 does not need to be removed, and the electrical components on the circuit board body 1 can be observed through the observation port 25 by removing the baffle 28.

[0039] It should also be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dustproof circuit board with good protection effect, comprising a circuit board body (1), characterized in that: The upper end cover of the circuit board body (1) is provided with a dust cover (2), the circuit board body (1) is provided with a plurality of through holes (11), the lower end surface of the dust cover (2) is fixedly connected with a plurality of fixing columns (71), the lower ends of the fixing columns (71) pass through the through holes (11), the fixing columns (71) are provided with sliding grooves (72) passing through the lower ends, a bottom plate (3) is provided below the circuit board body (1), and a buffer assembly is provided between the bottom plate (3) and each sliding groove (72).

2. A dustproof circuit board with good protection effect according to claim 1, characterized in that: The buffer assembly comprises a sliding rod (4) and a compression spring (5); a plurality of first threaded holes (31) are formed through the bottom plate (3); an external thread (41) is formed on the side wall of the lower end of the sliding rod (4); the sliding rod (4) is threadedly connected to the first threaded hole (31) via the external thread (41); the upper end of the sliding rod (4) extends into and is slidably connected to the sliding groove (72); and the compression spring (5) is arranged between the sliding rod (4) and the sliding groove (72).

3. A dustproof circuit board with good protection effect according to claim 2, characterized in that: The bottom plate (3) is provided with a rotation groove (32) on the outside of the threaded hole, a soft rubber sleeve (6) is rotatably arranged in the rotation groove (32), a metal thread segment (61) is fixedly connected to the upper end of the soft rubber sleeve (6), a fixed ring groove (73) is provided on the lower end of the fixed column (71) on the outside of the sliding groove (72), an internal thread (74) is provided on the outer side wall of the fixed ring groove (73), and the metal thread segment (61) is threadedly connected to the internal thread (74).

4. A dustproof circuit board with good protection effect according to claim 3, characterized in that: A limiting groove (33) is provided at the lower end of the rotation groove (32), a limiting ring (62) is fixedly connected to the lower end of the soft rubber sleeve (6), and the limiting ring (62) is rotatably connected in the limiting groove (33).

5. A dustproof circuit board with good protection effect according to claim 1, characterized in that: The dust cover (2) comprises a protective cavity (21) and a dustproof cavity (22); the electrical components on the circuit board body (1) are all covered by the protective cavity (21); the dustproof cavity (22) is symmetrically arranged on both sides of the protective cavity (21); a dustproof filter (23) is fixedly connected to the side of the dustproof cavity (22) close to the protective cavity (21); and a plurality of heat dissipation holes (24) are arranged on a side wall of the dustproof cavity (22) away from the protective cavity (21).

6. A dustproof circuit board with good protection effect according to claim 1, characterized in that: An observation port (25) is provided at the upper end of the dust cover (2); a stopper (26) is fixedly connected to the dust cover (2) in the observation port (25); a baffle (28) is provided on the stopper (26); a plurality of second threaded holes (27) are provided on the stopper (26); a plurality of fixing screws (29) are matched with the baffle (28); the fixing screws (29) are threadedly connected to the second threaded holes (27).

7. A dustproof circuit board with good protection effect according to claim 1, characterized in that: The outer side wall of the dust cover (2) is coated with an antistatic coating.

Images