CN215375333U - Gas sensor module - Google Patents
Gas sensor module Download PDFInfo
- Publication number
- CN215375333U CN215375333U CN202121811547.1U CN202121811547U CN215375333U CN 215375333 U CN215375333 U CN 215375333U CN 202121811547 U CN202121811547 U CN 202121811547U CN 215375333 U CN215375333 U CN 215375333U
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- circuit board
- gas sensor
- gas
- sensor module
- limiting plate
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Abstract
The utility model discloses a gas sensor module, which comprises a gas sensor and a circuit board connected with the gas sensor, wherein the circuit board is connected with a communication interface and a program read-write interface, a gas inlet is formed at one side of a shell, a gas outlet is arranged at one side opposite to the gas inlet, the sensor is arranged in the shell, a circuit board supporting and limiting plate is arranged at the top of an opening of the shell, an annular plane part and an annular part vertically arranged at the outer side of the upper surface of the plane part are arranged on the circuit board supporting and limiting plate, the circuit board is horizontally supported by the plane part and is placed at the outer side in a limiting way, the outer part of the circuit board is fixed with the circuit board supporting and limiting plate into a whole through epoxy resin pouring, and a circuit board pouring and sealing isolation layer formed through pouring and sealing is isolated from the outside. The gas sensor module ensures the air tightness of products, improves the protection performance of the circuit board, and has high dustproof and water-discharging performance.
Description
Technical Field
The utility model relates to the technical field of gas sensors, in particular to a gas sensor module.
Background
Current gas sensor module can adopt the shell of plastics material to protect usually, be equipped with in the plastics shell detection circuitry board and with the gas sensor that detection circuitry board is connected, the gas sensor signal enlargies and converts the RS485 signal into through detection circuitry board, can directly insert other master control equipment through the interface and use. However, the existing gas sensor module has poor sealing performance and air tightness, has poor protection performance on a detection circuit board, and cannot meet the use requirement.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a gas sensor module, which overcomes the drawbacks of the prior art.
The technical scheme adopted for realizing the purpose of the utility model is as follows:
the utility model provides a gas sensor module, including gas sensor and with the circuit board that gas sensor connects, communication interface and procedure read-write interface are connected to the circuit board, gas sensor sets up in a casing, one side of casing form gas inlet, it is relative one side of gas inlet is equipped with the gas outlet, the open-ended top of casing is provided with circuit board support limiting plate, annular plane portion and vertical arrangement have on the circuit board support limiting plate are in the annular portion in the plane portion upper surface outside, the circuit board by plane portion horizontal support and annular portion is spacing in the outside and places, the outside of circuit board through epoxy seal with circuit board support limiting plate is fixed as an organic whole to it is isolated with external world to seal the circuit board encapsulation isolated layer that forms through the encapsulation.
As a preferred technical solution, a gas vertical flow guiding inlet hole and a gas vertical flow guiding outlet hole are formed at the bottom of the housing, the gas vertical flow guiding inlet hole and a gas inlet formed on the outer wall of the housing form an L-shaped gas inlet channel, and the gas vertical flow guiding outlet hole and a gas outlet formed on the outer wall of the housing form an L-shaped gas outlet channel.
As a preferred technical scheme, the gas inlet and the gas outlet are detachably connected with adaptive joints, including right-angle joints, quick-plug joints and ferrule joints.
As a preferred technical solution, the joint is connected with the gas inlet and the gas outlet by screw threads.
As a preferable technical solution, the main body of the housing is a rectangular housing.
As a preferred technical scheme, a sealing ring is arranged between the shell and the circuit board supporting and limiting plate, and the sealing ring is arranged in a sealing ring limiting groove formed in the top end of the shell.
As a preferred technical solution, the housing and the circuit board supporting and limiting plate are connected by screws arranged at four corners.
As a preferable technical solution, the sensor connection line of the circuit board is connected to the gas sensor after passing through the threading pipe arranged between the circuit board and the gas sensor.
As a preferred technical solution, the communication interface and the program read/write interface are convexly arranged on the upper surface of the circuit board encapsulation isolation layer.
According to the gas sensor module, the circuit board is encapsulated by epoxy resin, so that the circuit board and the specific circuit board supporting and limiting plate are fixed into a whole, and the circuit board encapsulation isolation layer formed by encapsulation is isolated from the outside, so that the gas tightness of a product is ensured, the protection performance of the circuit board is improved, and the dustproof and waterproof performance is high.
Drawings
Fig. 1 is a schematic front view of a gas sensor module according to an embodiment of the present invention;
FIG. 2 is a sectional view of a vacuum sensor module according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an outline axial measurement structure of a vacuum sensor module according to an embodiment of the utility model.
Detailed Description
The utility model is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
As shown in fig. 1-3, a gas sensor module according to an embodiment of the present invention includes a gas sensor 8 and a circuit board 5 connected to the gas sensor 8, the circuit board 5 is connected to a communication interface 3 and a program read/write interface 4, the gas sensor 7 is disposed in a housing 1, a gas inlet is formed at one side of the housing 1, a gas outlet is formed at one side opposite to the gas inlet, a circuit board supporting and limiting plate 2 is disposed at the top of an opening of the housing 1, the circuit board supporting and limiting plate has a ring-shaped planar portion 21 and a ring-shaped portion 22 vertically disposed at the outer side of the upper surface of the planar portion, the circuit board 5 is horizontally supported by the planar portion and the ring-shaped portion is disposed at the outer side, the exterior of the circuit board is fixed to the circuit board supporting and limiting plate by epoxy potting, and the circuit board encapsulation isolation layer 6 formed by encapsulation is isolated from the outside.
The gas sensor module disclosed by the utility model is cast and sealed by epoxy resin, so that the strength is high, the air tightness of a product is ensured, and the protection performance of a circuit board is improved. The dustproof water discharge performance is excellent.
According to the gas sensor module, the bottom of the shell can be provided with a gas vertical flow guide inlet hole and a gas vertical flow guide outlet hole, the gas vertical flow guide inlet hole is connected with a gas inlet formed on the outer wall of the shell to form an L-shaped gas inflow channel 10, and the gas vertical flow guide outlet hole is connected with a gas outlet formed on the outer wall of the shell to form an L-shaped gas outflow channel 11. Wherein the bottom of the gas sensor 8 is spaced apart from the top of the inner ports of the gas inflow passage 10 and the gas outflow passage 11 by a predetermined distance, and a cavity is formed between the gas sensor and the bottom of the housing to facilitate inflow and outflow detection of gas.
The gas sensor 8 is placed in the housing, and may be suspended or supported by the inner surface of the housing at a predetermined position in the housing in a friction fit with the inner surface of the housing, without limitation.
According to the gas sensor module, the gas inlet and the gas outlet can be connected with the adaptive connectors 9 in a detachable connection mode, the adaptive connectors comprise right-angle connectors, quick-insertion connectors and clamping sleeve connectors, and preferably, the connectors are in threaded connection with the gas inlet and the gas outlet, so that other types of connectors can be replaced conveniently according to different use environments.
According to the gas sensor module, the main body of the shell 1 can be a rectangular shell, and the size of the circuit board supporting and limiting plate is matched with that of the end part of the circuit board supporting and limiting plate in a matching mode.
In order to improve the gas tightness, the casing with the circuit board supports and can further be provided with sealing washer 7 (like O type circle) between the limiting plate, the sealing washer is arranged in the sealing washer spacing groove that the casing top formed, and such design has realized that the circuit board supports the sealed between limiting plate and casing, and further assurance sealing performance guarantees the gas tightness.
In the gas sensor module of the present invention, preferably, the housing is connected to the circuit board supporting and limiting plate by screws 13 arranged at four corners, so that the assembly, disassembly, maintenance and use are facilitated.
In the gas sensor module of the present invention, preferably, the sensor connecting wire of the circuit board 5 is connected to the gas sensor 8 after passing through the threading tube 12 arranged between the circuit board 5 and the gas sensor 8, and the threading tube 12 is fixed with the sensor main body and/or the circuit board.
According to the gas sensor module, the communication interface 3(RS485 communication interface) and the program reading and writing interface 4 are convexly arranged on the upper surface of the circuit board encapsulation isolation layer 6, so that the gas sensor module is convenient to connect with a main control device or a corresponding device for use, and during detection, a signal of the gas sensor is amplified by the circuit board and converted into an RS485 signal, and can be directly accessed to other main control devices.
The gas sensor module can be used independently or in series connection, is convenient to disassemble and assemble, and can be used for periodically maintaining the sensor.
According to the gas sensor module, the circuit board is encapsulated by epoxy resin, so that the circuit board and the specific circuit board supporting and limiting plate are fixed into a whole, and the circuit board encapsulation isolation layer formed by encapsulation is isolated from the outside, so that the gas tightness of a product is ensured, the protection performance of the circuit board is improved, and the dustproof and waterproof performance is high.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The gas sensor module comprises a gas sensor and a circuit board connected with the gas sensor, the circuit board is connected with a communication interface and a program read-write interface, it is characterized in that the gas sensor is arranged in a shell, a gas inlet is formed at one side of the shell, a gas outlet is arranged at one side opposite to the gas inlet, the top of the opening of the shell is provided with a circuit board supporting and limiting plate which is provided with an annular plane part and an annular part vertically arranged outside the upper surface of the plane part, the circuit board is horizontally supported by the plane part and the annular part is arranged on the outer side in a limiting mode, the outer portion of the circuit board is fixedly integrated with the circuit board supporting and limiting plate through epoxy resin pouring, and a circuit board pouring and sealing isolation layer formed through pouring is isolated from the outside.
2. The gas sensor module as claimed in claim 1, wherein the bottom of the housing forms a vertical gas inlet and a vertical gas outlet, the vertical gas inlet and the vertical gas inlet form an L-shaped gas inlet channel, and the vertical gas outlet form an L-shaped gas outlet channel.
3. The gas sensor module as recited in claim 2, wherein the gas inlet and the gas outlet are detachably connected to an adaptive connector, comprising a right-angle connector, a quick-connect connector, and a ferrule connector.
4. The gas sensor module of claim 3, wherein the fitting is threadably connected to the gas inlet and the gas outlet.
5. The gas sensor module as claimed in claim 1 or 4, wherein the body of the housing is a rectangular housing.
6. The gas sensor module as set forth in claim 5, wherein a sealing ring is disposed between the housing and the circuit board supporting and limiting plate, and the sealing ring is disposed in a sealing ring limiting groove formed at a top end of the housing.
7. The gas sensor module according to claim 1 or 6, wherein the housing is connected to the circuit board supporting and limiting plate by screws arranged at four corners.
8. The gas sensor module as claimed in claim 7, wherein the sensor connection line of the circuit board is connected to the gas sensor through a wire tube disposed between the circuit board and the gas sensor.
9. The gas sensor module as claimed in claim 1 or 8, wherein the communication interface and the program read/write interface are disposed protruding from the upper surface of the circuit board encapsulation isolation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121811547.1U CN215375333U (en) | 2021-08-04 | 2021-08-04 | Gas sensor module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121811547.1U CN215375333U (en) | 2021-08-04 | 2021-08-04 | Gas sensor module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215375333U true CN215375333U (en) | 2021-12-31 |
Family
ID=79615461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121811547.1U Active CN215375333U (en) | 2021-08-04 | 2021-08-04 | Gas sensor module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215375333U (en) |
-
2021
- 2021-08-04 CN CN202121811547.1U patent/CN215375333U/en active Active
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