CN203368900U - Moistureproof printed circuit board for vehicle speed sensor - Google Patents
Moistureproof printed circuit board for vehicle speed sensor Download PDFInfo
- Publication number
- CN203368900U CN203368900U CN 201320300683 CN201320300683U CN203368900U CN 203368900 U CN203368900 U CN 203368900U CN 201320300683 CN201320300683 CN 201320300683 CN 201320300683 U CN201320300683 U CN 201320300683U CN 203368900 U CN203368900 U CN 203368900U
- Authority
- CN
- China
- Prior art keywords
- printed circuit
- circuit board
- moistureproof
- moisture barrier
- barrier coatings
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
Abstract
The utility model discloses a moistureproof printed circuit board for a vehicle speed sensor, and belongs to the field of printed circuit boards. The moistureproof printed circuit board comprises a printed circuit board and a moistureproof coating. The moistureproof coating is disposed on the surface of at least one side of the printed circuit board. According to the utility model, the moistureproof coating is disposed on the printed circuit board and can prevent the printed circuit board from being affected by moisture, thereby guaranteeing the sensitivity of the vehicle speed sensor.
Description
Technical field
The utility model relates to the printed circuit board field, particularly a kind of moistureproof printed circuit board for vehicle speed sensor.
Background technology
Printed circuit board be take insulation board as base material, is cut into definite shape, and on this base material with conductive pattern and layout elements hole, fastener hole, plated-through hole etc., the type of printed circuit board is divided into single sided board and double sided board etc.
Vehicle speed sensor is for the picking rate signal, the stability of vehicle speed sensor determines the stability of Vehicular system, printed circuit board in its vehicle speed sensor is fixed on the housing of vehicle speed sensor, this printed circuit board is for realizing interconnecting between electronic devices and components, in vehicle speed sensor, play an important role, if the sensitivity of vehicle speed sensor, the stability of vehicle also can reduce, and easily causes traffic accident.
In realizing process of the present utility model, the designer finds that at least there is following problem in prior art:
The printed circuit board of vehicle speed sensor of the prior art is easy to make moist, and the printed circuit board after making moist can cause solder joint to be corroded and the problem of printed circuit board short circuit, and this can affect the sensitivity of vehicle speed sensor.
The utility model content
In order to solve the problem of printed circuit board moisture-sensitive in prior art, the utility model embodiment provides a kind of moistureproof printed circuit board for vehicle speed sensor.Described technical scheme is as follows:
The utility model provides a kind of moistureproof printed circuit board for vehicle speed sensor, comprises printed circuit board, and described moistureproof printed circuit board also comprises: moisture barrier coatings, described moisture barrier coatings is arranged on the surface of at least one side of described printed circuit board.
Alternatively, the profile of described moisture barrier coatings is identical with the profile of described printed circuit board.
Alternatively, described moisture barrier coatings is layer of silica gel.
Alternatively, described moisture barrier coatings is the soft silica gel layer.
Alternatively, described moisture barrier coatings is 704 layer of silica gel.
Alternatively, the thickness of described moisture barrier coatings is 0.5-3mm.
Preferably, the thickness of described moisture barrier coatings is 1mm.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is: a kind of moistureproof printed circuit board for vehicle speed sensor that the utility model provides, be provided with moisture barrier coatings on its printed circuit board, moisture barrier coatings can prevent that printed circuit board from making moist, and then guarantees the sensitivity of vehicle speed sensor.
The accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, in below describing embodiment, the accompanying drawing of required use is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the end view of the moistureproof printed circuit board that provides of the utility model embodiment;
Fig. 2 is the vertical view of the moistureproof printed circuit board that provides of the utility model embodiment.
In figure: 1-printed circuit board, 2-moisture barrier coatings.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model execution mode is described in further detail.
Embodiment
A kind of moistureproof printed circuit board for vehicle speed sensor that the utility model embodiment provides, as shown in Figure 1, this protection against the tide printed circuit board comprises printed circuit board 1 and moisture barrier coatings 2, moisture barrier coatings is arranged on the surface of at least one side of printed circuit board 1.Wherein, when if printed circuit board 1 is single sided board, moisture barrier coatings 2 can only be arranged on a side surface of printed circuit board 1, is provided with a side of part, when if printed circuit board 1 is double sided board, moisture barrier coatings 2 can be arranged at respectively on the surface of printed circuit board 1 both sides.
Alternatively, as shown in Figure 2, the profile of moisture barrier coatings 2 is identical with the profile of printed circuit board 1, can make like this surface of printed circuit board 1 all be covered by moisture barrier coatings 2, prevents that better printed circuit board 1 from making moist.
Alternatively, moisture barrier coatings 2 is layer of silica gel, because silica gel has humidity resistance preferably, electric insulating quality, good sealing property and has corrosion resistant characteristics, so silica gel is the moisture barrier coatings be suitable for as the moistureproof printed circuit board of vehicle speed sensor.
Alternatively, moisture barrier coatings 2 is 704 layer of silica gel, 704 silica gel not only have the superperformance of silica gel, also there is good cementability, 704 silica gel can be bonded on printed circuit board 1, while on printed circuit board 1, moisture barrier coatings 2 being set like this without using adhesive, in addition, 704 silica gel also have the long-term characteristics of using in the scope of-50 ℃～250 ℃, have enlarged the suitable environment of moisture barrier coatings 2.Simultaneously, because 704 silica gel are soft silica gel, so the utility model also possesses anti-seismic performance.
Alternatively, the thickness of moisture barrier coatings 2 is 0.5-3mm, when the moisture barrier coatings 2 of this thickness range can make printed circuit board 1 and associated components normal operation, fully guarantees that printed circuit board 1 does not make moist.
Preferably, the thickness of moisture barrier coatings 2 is 1mm.
A kind of moistureproof printed circuit board for vehicle speed sensor that the utility model provides, be provided with moisture barrier coatings on its printed circuit board, and moisture barrier coatings can prevent that printed circuit board from making moist, and then guarantee the sensitivity of vehicle speed sensor.Simultaneously, if adopt 704 layer of silica gel as moisture barrier coatings, while on printed circuit board, moisture barrier coatings being set without using adhesive and possessing anti-seismic performance.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (7)
1. the moistureproof printed circuit board for vehicle speed sensor, comprise printed circuit board, it is characterized in that, described moistureproof printed circuit board also comprises: moisture barrier coatings, described moisture barrier coatings is arranged on the surface of at least one side of described printed circuit board.
2. moistureproof printed circuit board according to claim 1, is characterized in that, the profile of described moisture barrier coatings is identical with the profile of described printed circuit board.
3. moistureproof printed circuit board according to claim 2, is characterized in that, described moisture barrier coatings is layer of silica gel.
4. moistureproof printed circuit board according to claim 3, is characterized in that, described moisture barrier coatings is the soft silica gel layer.
5. moistureproof printed circuit board according to claim 4, is characterized in that, described moisture barrier coatings is 704 layer of silica gel.
6. according to the described moistureproof printed circuit board of claim 1-5 any one, it is characterized in that, the thickness of described moisture barrier coatings is 0.5-3mm.
7. moistureproof printed circuit board according to claim 6, is characterized in that, the thickness of described moisture barrier coatings is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320300683 CN203368900U (en) | 2013-05-28 | 2013-05-28 | Moistureproof printed circuit board for vehicle speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320300683 CN203368900U (en) | 2013-05-28 | 2013-05-28 | Moistureproof printed circuit board for vehicle speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203368900U true CN203368900U (en) | 2013-12-25 |
Family
ID=49816607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320300683 Expired - Fee Related CN203368900U (en) | 2013-05-28 | 2013-05-28 | Moistureproof printed circuit board for vehicle speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203368900U (en) |
-
2013
- 2013-05-28 CN CN 201320300683 patent/CN203368900U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204795847U (en) | Compound circuit board | |
| CN203368900U (en) | Moistureproof printed circuit board for vehicle speed sensor | |
| CN206284397U (en) | Resilient contact structure and electronic cigarette | |
| CN204707342U (en) | There is the multilayer circuit board of radiating effect | |
| CN204707343U (en) | There is the embedded type double-sided PCB of radiating effect | |
| CN205082062U (en) | Flexible circuit board | |
| CN203251505U (en) | Circuit board with white oil coverage layer | |
| CN202488869U (en) | Large copper surface welding-proof windowing structure of PCB | |
| CN210986582U (en) | PCB based on nanoscale carbon resistor | |
| CN205177326U (en) | Outdoor flexible light -duty transmission carrier | |
| CN203340410U (en) | Flexible circuit board | |
| CN203660080U (en) | Energy-saving wiring board for blower fan | |
| CN203827648U (en) | Circuit board protection cover | |
| CN204031597U (en) | There is the flexible circuit board of burying and holding and burying resistance | |
| CN202141741U (en) | Electric supply instrument | |
| CN203340419U (en) | Flexible circuit board | |
| CN202352522U (en) | Ceramic capacitor | |
| CN203194022U (en) | Electronic component fixing structure | |
| CN201576015U (en) | PCB for electric energy meter | |
| CN209105497U (en) | PCBA board component and electronic equipment | |
| CN205071461U (en) | Flexible circuit board of static is prevented in realization | |
| CN207427576U (en) | A kind of error correction printed board assembly | |
| CN204707344U (en) | A kind of steady type multilayer circuit board | |
| CN207399609U (en) | A kind of multilayer mixed pressure circuit board structure | |
| CN206341550U (en) | A kind of nano-sized carbon thermally conductive sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20140528 |