CN204131826U - The anti-interference pcb board of Portable alarm instrument - Google Patents
The anti-interference pcb board of Portable alarm instrument Download PDFInfo
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- CN204131826U CN204131826U CN201420530251.6U CN201420530251U CN204131826U CN 204131826 U CN204131826 U CN 204131826U CN 201420530251 U CN201420530251 U CN 201420530251U CN 204131826 U CN204131826 U CN 204131826U
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- holding wire
- shielding
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- power supply
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Abstract
The utility model discloses a kind of anti-interference pcb board of Portable alarm instrument, comprising: ground floor, described ground floor is for putting device layer; The second layer, the described second layer is ground plane layer, for power supply, holding wire provide good shielding; Third layer and the 4th layer, described third layer and described 4th layer are routing layer, are used for away responsive holding wire; Layer 5, described layer 5 is bus plane; Layer 6, described layer 6 is ground plane layer, for power supply, holding wire provide good shielding.The utility model adopts pcb board Anti-interference Design, the second layer and layer 6 as ground plane layer be power supply, holding wire provides good shielding, simultaneously ground floor uses entirety to cover copper for signal and provides shielding, there is provided extra electromagnetic shielding without the need to housing, eliminate the phenomenon making Portable alarm instrument poor anti jamming capability because plastic casing can not provide electromagnetic shielding; Make portable gas alarm can enjoy the advantage of plastic casing and good antijamming capability simultaneously.
Description
Technical field
The utility model relates to Portable alarm instrument technical field, specifically a kind of anti-interference pcb board of Portable alarm instrument.
Background technology
Most portable gas alarm is all use plastics die sinking as housing in the market, and the advantage done like this is fairly obvious: quality is light, good hand touch, cost are low.Single plastic housing can not provide any electromagnetic shielding for the circuit of portable gas alarm inside, causes the antijamming capability of portable gas alarm very low.In the applied environment that current electromagnetic interference is more and more stronger, so obvious poor performance of portable gas alarm.
Utility model content
The purpose of this utility model overcomes above-mentioned the deficiencies in the prior art, solves the technological deficiency existed at present, the utility model discloses a kind of anti-interference pcb board of Portable alarm instrument.
The technical scheme that the utility model adopts is: the anti-interference pcb board of Portable alarm instrument, comprising:
Ground floor, described ground floor is for putting device layer;
The second layer, the described second layer is ground plane layer, for power supply, holding wire provide good shielding;
Third layer and the 4th layer, described third layer and described 4th layer are routing layer, are used for away responsive holding wire;
Layer 5, described layer 5 is bus plane;
Layer 6, described layer 6 is ground plane layer, for power supply, holding wire provide good shielding;
Described ground floor, the second layer are by inner core plates pressing, the described second layer, third layer are connected by prepreg, described third layer, the 4th layer by inner core plates pressing, described 4th layer, layer 5 connected by prepreg, described layer 5, layer 6 are by inner core plates pressing.
The beneficial effects of the utility model are, a kind of anti-interference pcb board of Portable alarm instrument disclosed in the utility model, adopt pcb board Anti-interference Design, the second layer and layer 6 as ground plane layer be power supply, holding wire provides good shielding, ground floor uses the overall copper that covers to provide shielding to provide extra electromagnetic shielding without the need to housing for signal simultaneously, eliminates the phenomenon making portable gas alarm poor anti jamming capability because plastic casing can not provide electromagnetic shielding; Make portable gas alarm can enjoy the advantage of plastic casing and good antijamming capability simultaneously.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
In order to deepen, to understanding of the present utility model, to be described in further detail the utility model below in conjunction with drawings and Examples.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection range of the present utility model with this.
The anti-interference pcb board of Portable alarm instrument, comprising:
Ground floor 1, ground floor 1 is for putting device layer;
The second layer 2, the second layer 2 is ground plane layer, for power supply, holding wire provide good shielding;
Third layer 3 and the 4th layer 4, third layer 3 and the 4th layer 4 are routing layer, are used for away responsive holding wire;
Layer 55, layer 55 is bus plane;
Layer 66, layer 66 is ground plane layer, for power supply, holding wire provide good shielding;
Ground floor, the second layer are by inner core plates 7 pressing, and the second layer, third layer are connected by prepreg 8, third layer, the 4th layer by inner core plates 7 pressing, the 4th layer, layer 5 connected by prepreg 8, layer 5, layer 6 are by inner core plates 7 pressing
A kind of anti-interference pcb board of Portable alarm instrument disclosed in the utility model, adopt pcb board Anti-interference Design, the second layer and layer 6 as ground plane layer be power supply, holding wire provides good shielding, ground floor uses the overall copper that covers to provide shielding to provide extra electromagnetic shielding without the need to housing for signal simultaneously, eliminates the phenomenon making portable gas alarm poor anti jamming capability because plastic casing can not provide electromagnetic shielding; Make portable gas alarm can enjoy the advantage of plastic casing and good antijamming capability simultaneously.
Be noted that, the above embodiment is unrestricted to the explanation of technical solutions of the utility model, the equivalent replacement of art those of ordinary skill or other amendments made according to prior art, as long as do not exceed thinking and the scope of technical solutions of the utility model, all should be included within the interest field required by the utility model.
Claims (1)
1. the anti-interference pcb board of Portable alarm instrument, is characterized in that: comprising:
Ground floor, described ground floor is for putting device layer;
The second layer, the described second layer is ground plane layer, for power supply, holding wire provide good shielding;
Third layer and the 4th layer, described third layer and described 4th layer are routing layer, are used for away responsive holding wire;
Layer 5, described layer 5 is bus plane;
Layer 6, described layer 6 is ground plane layer, for power supply, holding wire provide good shielding;
Described ground floor, the second layer are by inner core plates pressing, the described second layer, third layer are connected by prepreg, described third layer, the 4th layer by inner core plates pressing, described 4th layer, layer 5 connected by prepreg, described layer 5, layer 6 are by inner core plates pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530251.6U CN204131826U (en) | 2014-09-15 | 2014-09-15 | The anti-interference pcb board of Portable alarm instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530251.6U CN204131826U (en) | 2014-09-15 | 2014-09-15 | The anti-interference pcb board of Portable alarm instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204131826U true CN204131826U (en) | 2015-01-28 |
Family
ID=52388138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420530251.6U Active CN204131826U (en) | 2014-09-15 | 2014-09-15 | The anti-interference pcb board of Portable alarm instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204131826U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118135A (en) * | 2015-09-17 | 2015-12-02 | 深圳市博众信息技术有限公司 | Handheld lottery terminal |
-
2014
- 2014-09-15 CN CN201420530251.6U patent/CN204131826U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118135A (en) * | 2015-09-17 | 2015-12-02 | 深圳市博众信息技术有限公司 | Handheld lottery terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |