CN209416424U - A kind of thermal air flowmeter - Google Patents
A kind of thermal air flowmeter Download PDFInfo
- Publication number
- CN209416424U CN209416424U CN201920294297.5U CN201920294297U CN209416424U CN 209416424 U CN209416424 U CN 209416424U CN 201920294297 U CN201920294297 U CN 201920294297U CN 209416424 U CN209416424 U CN 209416424U
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- China
- Prior art keywords
- shell
- connector
- thermal air
- evenly arranged
- dustproof cover
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Abstract
The utility model discloses a kind of thermal air flowmeters, including shell, dustproof cover, connector and integrated circuit board, one end of the shell is provided with inlet end, and the other end of shell is provided with outlet side, the central position of the shell side is fixed with connector, and the central position of connector side is provided with connection plug, the central position of the enclosure interior is fixed with hotting mask, and the side of hotting mask is provided with air temperature sensor, the inside of shell above the hotting mask is fixed with integrated circuit board, the both ends of the enclosure interior are mounted on protective net, polishing layer is provided on the outside of the shell, and skin of paint is uniformly coated on polishing layer.The utility model is equipped with installation panel by being equipped on shell, and installation panel and shell are weldedization structure, and install and be evenly arranged with mounting hole on panel, fixing bolt is respectively and fixedly provided on mounting hole, so that being convenient for the fixed installation of device.
Description
Technical field
The utility model relates to air flow meter technical field, specially a kind of thermal air flowmeter.
Background technique
The advantages of air flow meter is the utensil that the air mass flow of sucking is converted into electric signal, air flow meter is crushing
Minimum, measurable flow amount range is big, and thermal air flowmeter is one kind relatively conventional in air flow meter, thermal air flowmeter
It is divided into hot-wire and hot diaphragm type, by taking a kind of hot film type air flowmeter as an example, the existing most structure of such device is simple, function
Single, specific there are the following problems；
1, existing such device is not easy to be fixedly mounted and disassembly, connection defective tightness are easy to loosen；
2, the connection plug on the connector of such device does not have protective device, is exposed to outer, easy accumulation ash for a long time
Dirt influences normal use over time it is possible that the phenomenon that poor contact；
3, protective net can be all arranged in inlet end and outlet side in such device, but the protective net in existing device is most
It is fixed as one formula, is not easy to dismantle and replaces with shell, be unfavorable for the long-time service of device；
4, the structural strength and compressive property of such device itself are bad, are easy A Sheng damage by extraneous extrusion and collision.
Utility model content
The purpose of this utility model is to provide a kind of thermal air flowmeters, mentioned above in the background art to solve
Existing such device is not easy to fixed installation, the unshielded measure of connection plug, protective net are not easy to dismounting and change and device
The problem of itself is easily damaged.
To achieve the above object, the utility model provides the following technical solutions: a kind of thermal air flowmeter, including shell
Body, dustproof cover, connector and integrated circuit board, one end of the shell is provided with inlet end, and the other end of shell is provided with
Outlet side, the central position of the shell side is fixed with connector, and the central position of connector side is provided with and connects
Line plug, the central position of the enclosure interior is fixed with hotting mask, and the side of hotting mask is provided with air temperature sensor, institute
The inside for stating the shell above hotting mask is fixed with integrated circuit board, and the both ends of the enclosure interior are mounted on protective net, and shell
Body sidewall is internally provided with carbon steel enhancement layer, and the two sides of the carbon steel enhancement layer are evenly arranged with stiffness spring set, the shell
It is provided with polishing layer on the outside of body, and is uniformly coated with skin of paint on polishing layer.
Preferably, it is cased with installation panel on the shell, and installs and is evenly arranged with mounting hole, the mounting hole on panel
It is symmetrical about casing center.
Preferably, one end of the connector side is hinged with dustproof cover, and the junction of dustproof cover and connector is arranged
There is gasket.
Preferably, the dustproof cover is uniformly fixed with reserved block close to the side of connector, and connector is close to dustproof cover
Side be evenly arranged with the preformed groove to match with reserved block.
Preferably, the edge of the protective net is evenly arranged with card slot, and the inside of the shell is evenly arranged with and blocks
The fixture block that slot matches, and the junction of fixture block and card slot is provided with rubber sheet gasket, the protective net, which is constituted with shell, pacifies
Fill detaching structure.
Preferably, the inside of the carbon steel enhancement layer is equidistantly arranged with reinforcing rib, and the longitudinal section of reinforcing rib is in " H " type
Structure.
Compared with prior art, the utility model has the beneficial effects that
(1) thermal air flowmeter is welding one by being equipped with installation panel, installation panel and shell on shell
Body structure, and install and be evenly arranged with mounting hole on panel, it is respectively and fixedly provided with fixing bolt on mounting hole, so that convenient for device
It is fixedly mounted, so that being completely embedded, it is not easy to loose shift.
(2) thermal air flowmeter is cut with scissors by being equipped with connector and connection plug in one end of connector side
It is connected to dustproof cover, dustproof cover is uniformly fixed with reserved block close to the side of connector, and connector is all provided with close to the side of dustproof cover
It is equipped with the preformed groove to match with reserved block, convenient for when not in use covering dustproof cover, reserved block is inserted into preformed groove
In, proofing dust and protecting is carried out to the connection plug on connector, dust accretions is avoided, causes poor contact.
(3) thermal air flowmeter is mounted on protective net with outlet side by the inlet end in shell, inlet end
Effect is smooth air, and the anti-backfire of the effect of outlet side, the edge of protective net is provided with card slot, the edge of enclosure interior
Place is evenly arranged with the fixture block to match with card slot, so that convenient for when needing to clear up or replace, easily dismounting and change is protected
Net, it is easy to use.
(4) thermal air flowmeter is by being internally provided with carbon steel enhancement layer in housing sidewall, carbon steel enhancement layer
Inside is evenly arranged with the reinforcing rib of " H " type structure, convenient for improving the structural strength of device, is less likely to be damaged it, while
The two sides of carbon steel enhancement layer are provided with stiffness spring set, and stiffness spring covers equidistantly distributed, convenient for improving the crushing resistance of device
Can, it is less likely to be damaged when being squeezed by the external world and collision, polishing layer is arranged in the outside of shell, avoids the occurrence of burr, polishing layer
It is upper to be uniformly coated with skin of paint, it can get rusty to avoid surface of shell.
Detailed description of the invention
Fig. 1 is the positive structure diagram of the utility model；
Fig. 2 is the overlooking structure diagram of the utility model；
Fig. 3 is the side structure schematic view of the utility model；
Fig. 4 is the connector construction schematic diagram of the utility model；
Fig. 5 is the housing sidewall the schematic diagram of the section structure of the utility model.
In figure: 1, inlet end；2, shell；3, panel is installed；4, dustproof cover；5, connection plug；6, connector；7, outlet
End；8, protective net；9, card slot；10, air temperature sensor；11, mounting hole；12, fixture block；13, integrated circuit board；14, hotting mask；
15, reserved block；16, gasket；17, preformed groove；18, skin of paint；19, polishing layer；20, stiffness spring set；21, carbon steel is reinforced
Layer；22, reinforcing rib.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-5 is please referred to, a kind of embodiment provided by the utility model: a kind of thermal air flowmeter, including shell 2,
Dustproof cover 4, connector 6 and integrated circuit board 13, one end of shell 2 is provided with inlet end 1, and the other end of shell 2 is provided with
Outlet side 7 is cased with installation panel 3 on shell 2, and installs and be evenly arranged with mounting hole 11 on panel 3, and mounting hole 11 is about shell
The distribution of 2 central symmetries, is fixedly mounted convenient for device, is completely embedded it, stable structure, and the central position of 2 side of shell is solid
Surely there is connector 6, and the central position of 6 side of connector is provided with connection plug 5, one end of 6 side of connector is hinged with
Dustproof cover 4, and the junction of dustproof cover 4 and connector 6 is provided with gasket 16, convenient for the connection plug 5 on connector 6 into
Row proofing dust and protecting, avoids dust accretions, causes poor contact, and dustproof cover 4 is uniformly fixed with reserved block close to the side of connector 6
15, and connector 6 is evenly arranged with the preformed groove 17 to match with reserved block 15 close to the side of dustproof cover 4, being convenient for will be dust-proof
Clamping is fixed in lid 4 and connector 6, and the central position inside shell 2 is fixed with hotting mask 14, and the side setting of hotting mask 14
There is air temperature sensor 10, the model of air temperature sensor 10 can be LVQWZ-31, the inside of the shell 2 of 14 top of hotting mask
It is fixed with integrated circuit board 13, the both ends inside shell 2 are mounted on protective net 8, and the edge of protective net 8 is evenly arranged with card
Slot 9, the inside of shell 2 is evenly arranged with the fixture block 12 to match with card slot 9, and fixture block 12 and the junction of card slot 9 are respectively provided with
There is rubber sheet gasket, protective net 8 constitutes installing and dismounting structure with shell 2, convenient for easily dismantling when needing to clear up or replace
Protective net 8 is replaced, it is easy to use, and 2 side wall of shell is internally provided with carbon steel enhancement layer 21, the inside etc. of carbon steel enhancement layer 21
Spacing arrangement has reinforcing rib 22, and the longitudinal section of reinforcing rib 22 is in " H " type structure, and convenient for improving apparatus structure intensity, carbon steel adds
The two sides of strong layer 21 are evenly arranged with stiffness spring set 20, and the outside of shell 2 is provided with polishing layer 19, and on polishing layer 19 uniformly
Coated with skin of paint 18.
Working principle: in use, device is used the fixed peace of fixing bolt by the mounting hole 11 on installation panel 3 first
It mounted in the position used, so that being completely embedded, avoids loosening, power on later, when air flows through 2 inside of shell, first
The protective net 8 of inlet end 1 plays the role of smooth air, and when air-flow flows through hotting mask 14 later, the heat of hotting mask 14 is inhaled by air
It receives, it is made to turn cold, the resistance value of strain resistor also becomes smaller, and the temperature of hotting mask 14 is controlled by integrated circuit board 13, when air mass flow increases
Greatly, the heat taken away also increases, in order to guarantee 14 temperature of hotting mask is constant, and integrated circuit board 13 passes through 14 resistance of hotting mask electric current
Also increase, conversely, then reducing, carry out the measurement of air mass flow, protective net 8 using the heat transmitting between hotting mask 14 and air with this
Edge be provided with card slot 9, the edge inside shell 2 is evenly arranged with the fixture block 12 to match with card slot 9, makes when it's convenient
It is easy to use in the easily dismounting and change protective net 8 when needing to clear up or replace, carbon is internally provided in 2 side wall of shell
Steel enhancement layer 21, the inside of carbon steel enhancement layer 21 are evenly arranged with the reinforcing rib 22 of " H " type structure, convenient for improving the structure of device
Intensity is less likely to be damaged it, while being provided with stiffness spring set 20, stiffness spring set 20 in the two sides of carbon steel enhancement layer 21
Equidistantly distributed is less likely to be damaged, outside shell 2 convenient for improving the compressive property of device when being squeezed by the external world and collision
Polishing layer 19 is arranged in side, avoids the occurrence of burr, is uniformly coated with skin of paint 18 on polishing layer 19, can be raw to avoid 2 surface of shell
Rust.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (6)
1. a kind of thermal air flowmeter, including shell (2), dustproof cover (4), connector (6) and integrated circuit board (13), special
Sign is: one end of the shell (2) is provided with inlet end (1), and the other end of shell (2) is provided with outlet side (7), described
The central position of shell (2) side is fixed with connector (6), and the central position of connector (6) side is provided with wiring
Plug (5), the internal central position of the shell (2) is fixed with hotting mask (14), and the side of hotting mask (14) is provided with air
The inside of temperature sensor (10), the shell (2) above the hotting mask (14) is fixed with integrated circuit board (13), the shell
(2) internal both ends are mounted on protective net (8), and shell (2) side wall is internally provided with carbon steel enhancement layer (21), the carbon
The two sides of steel enhancement layer (21) are evenly arranged with stiffness spring set (20), are provided with polishing layer (19) on the outside of the shell (2),
And uniformly skin of paint (18) are coated on polishing layer (19).
2. a kind of thermal air flowmeter according to claim 1, it is characterised in that: be cased with installation on the shell (2)
Panel (3), and install and be evenly arranged with mounting hole (11) on panel (3), the mounting hole (11) is about shell (2) central symmetry
Distribution.
3. a kind of thermal air flowmeter according to claim 1, it is characterised in that: the one of connector (6) side
End is hinged with dustproof cover (4), and the junction of dustproof cover (4) and connector (6) is provided with gasket (16).
4. a kind of thermal air flowmeter according to claim 3, it is characterised in that: the dustproof cover (4) is close to connection
The side of device (6) is uniformly fixed with reserved block (15), and connector (6) close to dustproof cover (4) side be evenly arranged with in advance
The preformed groove (17) for staying block (15) to match.
5. a kind of thermal air flowmeter according to claim 1, it is characterised in that: the edge of the protective net (8)
It is evenly arranged with card slot (9), the inside of the shell (2) is evenly arranged with the fixture block (12) to match with card slot (9), and fixture block
(12) rubber sheet gasket is provided with the junction of card slot (9), the protective net (8) constitutes installing and dismounting knot with shell (2)
Structure.
6. a kind of thermal air flowmeter according to claim 1, it is characterised in that: the carbon steel enhancement layer (21) it is interior
Portion is equidistantly arranged with reinforcing rib (22), and the longitudinal section of reinforcing rib (22) is in " H " type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920294297.5U CN209416424U (en) | 2019-03-08 | 2019-03-08 | A kind of thermal air flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920294297.5U CN209416424U (en) | 2019-03-08 | 2019-03-08 | A kind of thermal air flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209416424U true CN209416424U (en) | 2019-09-20 |
Family
ID=67945108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920294297.5U Expired - Fee Related CN209416424U (en) | 2019-03-08 | 2019-03-08 | A kind of thermal air flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209416424U (en) |
-
2019
- 2019-03-08 CN CN201920294297.5U patent/CN209416424U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190920 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |