CN209028061U - A kind of risk inspection instrument with dust reduction capability - Google Patents
A kind of risk inspection instrument with dust reduction capability Download PDFInfo
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- CN209028061U CN209028061U CN201821763256.8U CN201821763256U CN209028061U CN 209028061 U CN209028061 U CN 209028061U CN 201821763256 U CN201821763256 U CN 201821763256U CN 209028061 U CN209028061 U CN 209028061U
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- detection circuit
- air
- power supply
- sensor
- circuit board
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Abstract
The utility model discloses a kind of risk inspection instrument with dust reduction capability, and box body is separated into two independent sensor cavities and detection circuit chamber by intermediate partition；One end of intermediate bulkhead is provided with notch, and a power supply heat sinking piece is encapsulated in notch, is equipped with power module in power supply heat sinking piece.Air inlet is provided in sensor cavities, on the box case close to the left and right sides of the partition, respectively it is provided with an air outlet, sensor circuit board is completely in the air duct of surrounding circulation by the air of air inlet to two sides air outlet, is also in the side in side air duct simultaneously close to the power supply heat sinking piece of air outlet.The utility model structure is simple, and sensor cavities and detection circuit chamber are mutually indepedent, prevent the dust in air inlet is from reaching detection circuit board, to effectively prevent accumulation of the dust in detection circuit board when long-term work.
Description
Technical field
The utility model relates to a kind of structure designs of the risk inspection instrument of energy dust reduction capability.
Background technique
Risk inspection instrument is the instrument detected to vehicle flammability hazard gas, usually in the utility cars such as public transport, train
It uses, flammable explosive gas is detected, know in vehicle convenient for driver with the presence or absence of flammable explosive gas and existing
Position takes timely measure.On same circuit board, risk inspection instrument shell mechanism cannot be to sky for existing sensor and detection circuit
Gas dust is protected, and after risk inspection instrument long-term work, can be accumulated a large amount of dusts on circuit boards, be reduced service life and causing property
It can decline.Also, it since risk inspection instrument sensor and detection circuit are assembled together, cannot radiate well, temperature is excessively high
Easily make testing result inaccurate, dangerous hidden danger, and instrument has the possibility of damage.
Utility model content
In view of existing risk inspection instrument there are the problem of, the purpose of the utility model is to provide one kind have dust reduction capability and heat dissipation
The risk inspection instrument of function, can the safe and reliable work of long-time.
To achieve the above object, the utility model takes technical solution as follows:
A kind of risk inspection instrument with dust reduction capability, box body are separated into two independent sensor cavities by intermediate partition
With detection circuit chamber；Sensor circuit board and detection circuit board are equipped in sensor cavities and detection circuit chamber respectively；In
One end of spacing board is provided with notch, and a power supply heat sinking piece is encapsulated in notch, is equipped with power module in power supply heat sinking piece；
In sensor cavities, it is provided with air inlet on the box case on its top, suction is provided on the inside of air inlet
Air fan；The sensor circuit board is in the subsequent sensor cavities of drawing fan；On the left side close to the partition
On the box case of right two sides, it is respectively provided with an air outlet, sensor circuit board is made by the air of air inlet to two sides air outlet
It is completely in the air duct of surrounding circulation, is also in the side in side air duct simultaneously close to the power supply heat sinking piece of air outlet
Face.
In detection circuit chamber, in installing a socket on the box case of side, socket power line is connected to power supply
Module, external power supply are that sensor circuit, detection circuit and drawing fan are powered by power module through socket.
Air filter screen is equipped in the air inlet.
The beneficial effects of the utility model are:
The utility model structure is simple, design is novel, and sensor cavities and detection circuit chamber are mutually indepedent, so that air inlet
Interior dust cannot reach detection circuit board, in addition the effect of air filter screen, thus when effectively having prevented risk inspection instrument long-term work
Accumulation of the dust in detection circuit board, and prevented to cause since temperature is excessively high under sensing and detection circuit performance by air-cooled
The problem of drop.Again since this risk inspection instrument is the discrete structure design of two pieces of circuit boards, risk inspection instrument is set to be easy to overhaul, and two can be made
Circuit part can be replaced respectively.
Detailed description of the invention
Fig. 1 is a kind of planar structure schematic diagram of the risk inspection instrument with dust reduction capability of the utility model.
Fig. 2 is a kind of schematic perspective view of the risk inspection instrument with dust reduction capability of the utility model.
Marked in the figure:
I, sensor cavities, II, detection circuit chamber, 1, partition, 2, air inlet, 3, drawing fan, 4, air outlet, 5, biography
Sensor circuit board, 6, air filter screen, 7, detection circuit board, 8, power supply heat sinking piece, 9, power module, 10, socket.
Specific embodiment
Middle the embodiments of the present invention illustrate with reference to the accompanying drawing.
As depicted in figs. 1 and 2, a kind of risk inspection instrument with dust reduction capability of the utility model, box body is by intermediate partition 1
It is separated into two independent sensor cavities I and detection circuit chamber II.In sensor cavities I and detection circuit chamber II respectively
Equipped with sensor circuit board 5 and detection circuit board 7.One end of intermediate bulkhead 1 is provided with notch, encapsulates a power supply heat sinking in notch
Piece 8 is equipped with power module 9 in power supply heat sinking piece 8.
In sensor cavities I, it is provided with air inlet 2 on the box case on its top, is equipped with air filter in air inlet 2
Net 6, to hinder to enter the dust in box body in air.Drawing fan 3 is provided on the inside of air inlet 2, for drawing air into
In box body.The sensor circuit board 5 is in the subsequent sensor cavities I of drawing fan 3.Close to the partition 1
The left and right sides box case on, be respectively provided with an air outlet 4.In this way, being made by the air of air inlet 2 to two sides air outlet 4
Sensor circuit board 5 is completely in the air duct of surrounding circulation, also, also same close to the power supply heat sinking piece 8 of air outlet 4
When the side in side air duct, radiated by the air to circulate to power supply heat sinking piece 8, then by power supply heat sinking piece 8 to power supply mould
Block 9 carries out cooling heat.
In detection circuit chamber II, in being equipped with a socket 10 on the box case of side, for the electricity with outside
Source and corresponding instrument carry out connection.Socket 10 runs wires to power module 9, and external power supply is sensing by power module 9
Device circuit, detection circuit and drawing fan 3 are powered.
The detection signal of the detection circuit is connected by socket 10 and external corresponding instrument.The sensor electricity
Signal wire is connected between road and detection circuit.
Circuit in this risk inspection instrument be existing risk inspection instrument sensor circuit and detection circuit and it is identical with it is external
The signal line of instrument connection, this risk inspection instrument do not do any change to this.This risk inspection instrument and the difference of existing risk inspection instrument key are
Sensor circuit and detection circuit are separately mounted on two independent circuit boards then completely cut off and opened, and the air duct pair by designing
Risk inspection instrument cools down.
Claims (3)
1. a kind of risk inspection instrument with dust reduction capability, it is characterised in that: its box body is separated into two independences by intermediate partition (1)
Sensor cavities (I) and detection circuit chamber (II)；Respectively equipped with biography in sensor cavities (I) and detection circuit chamber (II)
Sensor circuit board (5) and detection circuit board (7)；One end of intermediate bulkhead (1) is provided with notch, encapsulates a power supply heat sinking in notch
Piece (8), power supply heat sinking piece (8) is interior to be equipped with power module (9)；
In sensor cavities (I), it is provided with air inlet (2) on the box case on its top, is arranged on the inside of air inlet (2)
There are drawing fan (3)；The sensor circuit board (5) is in drawing fan (3) subsequent sensor cavities (I)；It is leaning on
On the box case of the left and right sides of the nearly partition (1), it is respectively provided with an air outlet (4), is gone out by air inlet (2) to two sides
The air in air port (4) is completely in sensor circuit board (5) in the air duct of surrounding circulation, close to the described of air outlet (4)
Power supply heat sinking piece (8) is also in the side in side air duct simultaneously.
2. risk inspection instrument according to claim 1, it is characterised in that: the box body in detection circuit chamber (II), in side
One socket (10) is installed on shell, socket (10) is run wires to power module (9), external power supply through socket (10) by
Power module (9) is sensor circuit, detection circuit and drawing fan (3) power supply.
3. risk inspection instrument according to claim 1, it is characterised in that: be equipped with air filter screen (6) in the air inlet (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821763256.8U CN209028061U (en) | 2018-10-30 | 2018-10-30 | A kind of risk inspection instrument with dust reduction capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821763256.8U CN209028061U (en) | 2018-10-30 | 2018-10-30 | A kind of risk inspection instrument with dust reduction capability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209028061U true CN209028061U (en) | 2019-06-25 |
Family
ID=66908432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821763256.8U Active CN209028061U (en) | 2018-10-30 | 2018-10-30 | A kind of risk inspection instrument with dust reduction capability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209028061U (en) |
-
2018
- 2018-10-30 CN CN201821763256.8U patent/CN209028061U/en active Active
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