CN215581847U - Dust protected printed circuit board - Google Patents
Dust protected printed circuit board Download PDFInfo
- Publication number
- CN215581847U CN215581847U CN202120611505.7U CN202120611505U CN215581847U CN 215581847 U CN215581847 U CN 215581847U CN 202120611505 U CN202120611505 U CN 202120611505U CN 215581847 U CN215581847 U CN 215581847U
- Authority
- CN
- China
- Prior art keywords
- shell
- inner shell
- circuit board
- printed circuit
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Casings For Electric Apparatus (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model relates to the technical field of circuit boards, in particular to a dustproof printed circuit board, wherein a circuit board is placed through a mounting groove in an inner shell, a protective pad is arranged on the inner wall of the inner shell to prevent the circuit board from being worn, heat dissipation holes are formed in the protective pad and the surface layer of the inner shell to facilitate heat dissipation of the circuit board, a second spring is arranged between an element layer and the inner wall of the inner shell to fix the circuit board placed in the mounting groove and keep a certain gap to facilitate heat dissipation, the outer shell is assembled with a substrate layer arranged at the lower end of the inner shell through a fastener wall, a first spring is arranged between the inner shell and the outer shell, a gap is formed between the inner shell and the outer shell under the action of the first spring, cotton wool is filled in the gap, a dustproof net is arranged on the surface layer of the outer shell, and under the combined action of the dustproof net and the cotton wool, dust can be prevented from entering the inner shell, meanwhile, the dust adhered to the cotton wool and the dust screen can be conveniently shaken off by pressing the first spring.
Description
Technical Field
The utility model relates to the technical field of circuit boards, in particular to a dustproof printed circuit board.
Background
The circuit board is used for connecting electronic components to form an electronic device with a certain function. The existing circuit board body is exposed in the air, dust often enters the existing circuit board body in daily use, and the dust accumulation condition is more serious for the circuit board used on some outdoor electronic equipment. The accumulation of circuit board dust not only affects the normal operation and efficiency of the electrical components, but also causes short circuit failures, thereby reducing the service life of the circuit board and the electrical components.
SUMMERY OF THE UTILITY MODEL
The present invention aims to overcome the above-mentioned shortcomings and provide a technical solution to solve the above-mentioned problems.
A dustproof printed circuit board comprises an inner shell and an outer shell, wherein a mounting groove is formed in the inner shell, and an element layer, a circuit layer and a substrate layer are sequentially arranged in the mounting groove from top to bottom; the inner shell top layer is provided with the louvre, and the inner shell outside is provided with the fixing base, and the fixing base upper end is provided with first spring, and the shell is the shape of falling the U-shaped, and the shell lower extreme is provided with the fastener arm, and the shell top layer is provided with the dust screen, and the inner shell is installed inside the shell, and is provided with the space between inner shell and the shell, and the interstitial packing has the cotton fibre.
Furthermore, a protective pad is arranged on the inner wall of the inner shell, and heat dissipation holes are also formed in the protective pad.
Furthermore, the fastener arm comprises a left arm and a right arm which are respectively in contact connection with the bottom wall end of the inner shell.
Further, the first spring is in interference connection with the inner wall of the shell.
Furthermore, the protective pad is made of an antistatic material.
Further, a second spring is arranged between the element layer and the inner shell.
Furthermore, the substrate layer is made of high-hardness materials.
The utility model has the beneficial effects that: a dustproof printed circuit board comprises an inner shell and an outer shell, wherein a mounting groove is formed in the inner shell, and an element layer, a circuit layer and a substrate layer are sequentially arranged in the mounting groove from top to bottom; the surface layer of the inner shell is provided with heat dissipation holes, the outer side of the inner shell is provided with a fixed seat, the upper end of the fixed seat is provided with a first spring, the outer shell is in an inverted U shape, the lower end of the outer shell is provided with a fastener arm, the surface layer of the outer shell is provided with a dust screen, the inner shell is installed inside the outer shell, a gap is formed between the inner shell and the outer shell, and cotton wool is filled in the gap; the device has simple structure, mainly comprises an outer shell and an inner shell, a circuit board is placed through a mounting groove in the inner shell, a component layer, a circuit layer and a substrate layer are sequentially placed from top to bottom, a protective pad is arranged on the inner wall of the inner shell to prevent the circuit board from being worn, radiating holes are formed in the protective pad and the surface layer of the inner shell to facilitate the heat radiation of the circuit board, a second spring is arranged between the component layer and the inner wall of the inner shell to fix the circuit board placed in the mounting groove and keep a certain gap to facilitate the heat radiation, the outer shell is assembled with the substrate layer arranged at the lower end of the inner shell through a fastener wall, a first spring is arranged between the inner shell and the outer shell, a gap is formed between the inner shell and the outer shell under the action of the first spring, cotton wool is filled in the gap, a dustproof net is arranged on the surface layer of the outer shell, and under the combined action of the dustproof net and the cotton wool, the dust can be prevented from entering the inner shell, and the dust adhered to the cotton wool and the dust screen can be shaken off conveniently by pressing the first spring.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
The attached figures in the drawing are respectively marked as follows: the device comprises an inner shell-1, an outer shell-2, a mounting groove-3, an element layer-4, a circuit layer-5, a substrate layer-6, heat dissipation holes-7, a fixing seat-8, a first spring-9, a fastener arm-10, a dust screen-11, cotton wool-12 and a second spring-13.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a dustproof printed circuit board includes an inner housing 1 and an outer housing 2, wherein a mounting groove 3 is formed in the inner housing 1, and the mounting groove 3 is sequentially provided with a component layer 4, a circuit layer 5, and a substrate layer 6 from top to bottom; the surface layer of the inner shell 1 is provided with heat dissipation holes 7, the outer side of the inner shell 1 is provided with a fixed seat 8, the upper end of the fixed seat 8 is provided with a first spring 9, the outer shell 2 is in an inverted U shape, the lower end of the outer shell 2 is provided with a fastener arm 10, the surface layer of the outer shell 2 is provided with a dust screen 11, the inner shell 1 is installed inside the outer shell 2, a gap is formed between the inner shell 1 and the outer shell 2, and cotton wool 12 is filled in the gap; the device has simple structure, mainly comprises an outer shell 2 and an inner shell 1, a circuit board is placed through a mounting groove 3 in the inner shell 1, a component layer 4, a circuit layer 5 and a substrate layer 6 are sequentially placed from top to bottom, a protective pad is arranged on the inner wall of the inner shell 1 to prevent the circuit board from being worn, heat dissipation holes 7 are arranged on the protective pad and the surface layer of the inner shell 1 to facilitate the heat dissipation of the circuit board, a second spring 13 is arranged between the component layer 4 and the inner wall of the inner shell 1 to fix the circuit board placed in the mounting groove 3 and also keep a certain gap to facilitate the heat dissipation, the outer shell 2 is assembled with the substrate layer 6 arranged at the lower end of the inner shell 1 through a fastener wall, a first spring 9 is arranged between the inner shell 1 and the outer shell 2, a gap is arranged between the inner shell 1 and the outer shell 2 under the action of the first spring 9, and cotton wool 12 is filled between the gap, the surface layer of the outer shell 2 is provided with a dust screen 11, under the combined action of the dust screen 11 and the cotton wool 12, dust can be prevented from entering the inner shell 1, and meanwhile, the dust adhered to the cotton wool 12 and the dust screen 11 can be conveniently shaken off by extruding the first spring 9.
The inner wall of the inner shell 1 is provided with a protective pad, the protective pad is also provided with heat dissipation holes 7, and the circuit board can be prevented from being worn under the action of the protective pad.
The fastener arm 10 includes left and right arms which are respectively in contact connection with the bottom wall end of the inner case 1, and the outer case 2 and the inner case 1 can be assembled together by the left and right arms.
The first spring 9 is connected with the inner wall of the outer shell 2 in an abutting mode, a gap is formed between the inner shell 1 and the outer shell 2 under the action of the first spring 9, and dust can be shaken out through extrusion.
The protection pad is made of an anti-static material and is used for containing static electricity.
And a second spring 13 is arranged between the element layer 4 and the inner shell 1, so that a space is reserved inside the inner shell 1, and heat dissipation and circulation are facilitated.
The base plate layer 6 is made of high-hardness materials, and damage caused by extrusion of the outer shell 2 and the inner shell 1 is avoided.
Although the present invention has been described with reference to the above preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (7)
1. A dust protected printed circuit board, its characterized in that: the circuit board comprises an inner shell and an outer shell, wherein a mounting groove is formed in the inner shell, and an element layer, a circuit layer and a substrate layer are sequentially arranged in the mounting groove from top to bottom; the inner shell top layer is provided with the louvre, and the inner shell outside is provided with the fixing base, and the fixing base upper end is provided with first spring, and the shell is the shape of falling the U-shaped, and the shell lower extreme is provided with the fastener arm, and the shell top layer is provided with the dust screen, and the inner shell is installed inside the shell, and is provided with the space between inner shell and the shell, and the interstitial packing has the cotton fibre.
2. The dustproof printed circuit board according to claim 1, wherein: the inner wall of the inner shell is provided with a protective pad, and the protective pad is also provided with heat dissipation holes.
3. The dustproof printed circuit board according to claim 1, wherein: the fastener arm comprises a left arm and a right arm which are respectively in contact connection with the bottom wall end of the inner shell.
4. The dustproof printed circuit board according to claim 1, wherein: the first spring is connected with the inner wall of the shell in an abutting mode.
5. The dustproof printed circuit board according to claim 1, wherein: the protective pad is made of antistatic material.
6. The dustproof printed circuit board according to claim 1, wherein: a second spring is arranged between the element layer and the inner shell.
7. The dustproof printed circuit board according to claim 1, wherein: the substrate layer is made of high-hardness materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120611505.7U CN215581847U (en) | 2021-03-24 | 2021-03-24 | Dust protected printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120611505.7U CN215581847U (en) | 2021-03-24 | 2021-03-24 | Dust protected printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215581847U true CN215581847U (en) | 2022-01-18 |
Family
ID=79854748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120611505.7U Active CN215581847U (en) | 2021-03-24 | 2021-03-24 | Dust protected printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215581847U (en) |
-
2021
- 2021-03-24 CN CN202120611505.7U patent/CN215581847U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215581847U (en) | Dust protected printed circuit board | |
| CN214675830U (en) | Waterproof circuit printed board | |
| CN213305965U (en) | BMS battery management system casing waterproof construction | |
| CN208657155U (en) | A kind of circuit board that permeability is strong | |
| CN216487729U (en) | Anti-load large-current relay | |
| CN212723714U (en) | ARM control mainboard | |
| CN213453538U (en) | LED switching power supply with heat radiation structure | |
| CN215375864U (en) | Optical module for optimizing EMI performance | |
| CN216600371U (en) | Main control board packaging structure for outdoor equipment | |
| CN206133399U (en) | Computer motherboard takes precautions against earthquakes | |
| CN219873505U (en) | Chip heat radiation structure | |
| CN215121442U (en) | High-performance PCB (printed circuit board) based on Internet of things detection | |
| CN218268233U (en) | Display screen with strong installation stability | |
| CN214796566U (en) | LED digital display with spring | |
| CN219678769U (en) | Improved circuit board | |
| CN219716024U (en) | Power supply switching mechanism of server | |
| CN212231975U (en) | Superconducting power supply with wireless function | |
| CN216253349U (en) | PCB applied to photovoltaic inverter system | |
| CN212970232U (en) | Circuit board with joint sealing function | |
| CN216752227U (en) | Display module circuit board | |
| CN214043114U (en) | Conductive silica gel plate capable of being installed quickly | |
| CN221081461U (en) | Dampproofing formula wireless router | |
| CN214281219U (en) | Low-power simple frequency converter | |
| CN217904910U (en) | Multilayer PCB circuit board structure | |
| CN214625021U (en) | Shell sealing mechanism and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |