CN209687614U - A kind of shell of air flow sensor - Google Patents
A kind of shell of air flow sensor Download PDFInfo
- Publication number
- CN209687614U CN209687614U CN201920425976.1U CN201920425976U CN209687614U CN 209687614 U CN209687614 U CN 209687614U CN 201920425976 U CN201920425976 U CN 201920425976U CN 209687614 U CN209687614 U CN 209687614U
- Authority
- CN
- China
- Prior art keywords
- box body
- hole
- air flow
- flow sensor
- shell
- 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
- 230000008054 signal transmission Effects 0.000 claims abstract description 5
- 238000001746 injection moulding Methods 0.000 abstract description 5
- 239000000243 solution Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 238000005194 fractionation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- Measuring Volume Flow (AREA)
Abstract
The utility model relates to air flow sensor field, especially a kind of shell of air flow sensor.The utility model provides following technical solution: a kind of shell of air flow sensor, box body including main casing and for circuit board and signal transmission component to be arranged, the box body is equipped with the outer cover that can cover box body, inlet channel is equipped in the main casing, the main casing is equipped with the groove of mountable box body, the axial sides of the groove are equipped with retaining ring, and the retaining ring is equipped with connecting hole, and the box body is correspondingly connected with hole and offers threaded hole and be connected by screw.The utility model solve the problems, such as inlet channel with it is easy to crack after box body integrated injection molding.
Description
Technical field
The utility model relates to air flow sensor field, especially a kind of shell of air flow sensor.
Background technique
Air flow sensor (also known as air flow meter) is one of important sensor of EFI engine.It is by sucking
Air mass flow is converted into electric signal and send to electronic control unit (ECU), is measurement sucking hair as one of the baseband signal for determining oil spout
The sensor of the air mass flow of motivation.
The shell of air flow sensor includes the box body of inlet channel and setting sensing element, signal transmission component,
Inlet channel and box body are integrally formed by usual situation lower case by way of injection molding, but plastic casing is easily damaged, air inlet
Being easy to produce internal stress before channel and box body causes to crack, and has larger impact to the use of air flow sensor.
Summary of the invention
Aiming at the problems existing in the prior art, the utility model provides a kind of shell of air flow sensor, solution
It has determined problem easy to crack after inlet channel and box body integrated injection molding.
To achieve the above object, the utility model provides following technical solution: a kind of shell of air flow sensor,
Box body including main casing and for circuit board and signal transmission component to be arranged, the box body are equipped with and can cover box body
Outer cover, the main casing is interior to be equipped with inlet channel, and the main casing is equipped with the groove of mountable box body, the axial direction of the groove
Two sides are equipped with retaining ring, and the retaining ring is equipped with connecting hole, and the box body is correspondingly connected with hole and offers threaded hole and by screw phase
Even.
By adopting the above technical scheme, box body is in contact by groove with inlet channel, and is passed through with the retaining ring of groove two sides
Screw is connected, so that box body is fixedly connected with inlet channel, structure is simple, easy to connect, and it is logical to solve air inlet
Problem easy to crack behind road and box body integrated injection molding.
Further, the box body is connected with inlet channel, and the box body is equipped with first through hole, sets on the groove
There is the second through-hole corresponding with first through hole, rubber sleeve connecting the two, institute are equipped between the first through hole and the second through-hole
It states rubber sleeve one end to be set at box body, the other end is arranged in the intake channel.
By adopting the above technical scheme, first through hole and the second through-hole may make the air mass flow of setting on circuit boards to incude
Element protrudes into inlet channel from box body, and the setting of rubber sleeve can prevent the gas in inlet channel from leaking.
Further, the annular groove that can be used for mounting circuit boards is equipped in the box body.
By adopting the above technical scheme, the installation of circuit board is convenient in setting in this way, and makes the installation of circuit board relatively reliable.
Further, the retaining ring is connected with main casing by screw.
By adopting the above technical scheme, setting in this way is so that the connection of retaining ring and main casing is stronger, and makes and retaining ring phase
The fixation of box body even is relatively reliable.
Further, strainer is respectively equipped at the both ends open of the inlet channel.
By adopting the above technical scheme, setting strainer can the air to the both ends for flowing through inlet channel further filter, prevent
Only there is impurity to be brought into inlet channel by air.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the fractionation schematic diagram of the utility model.
Fig. 3 is the structural schematic diagram of box body.
Specific embodiment
Specific embodiment of the present utility model is described further below in conjunction with accompanying drawings and embodiments.
A kind of shell of air flow sensor as shown in Figure 1, 2, including main casing 1 and for be arranged circuit board and
The box body 2 of signal transmission component, the box body 2 are equipped with the outer cover 3 that can cover box body 2, are equipped with air inlet in the main casing 1
Channel 4, the main casing 1 are equipped with the groove 5 of mountable box body 2, and the axial sides of the groove 5 are equipped with retaining ring 6, the gear
Circle 6 is equipped with connecting hole 7, and the box body 2 is correspondingly connected with hole 7 and offers threaded hole 8 and be connected by screw 9.Box body 2 passes through recessed
Slot 5 is in contact with inlet channel 4, and is connected with the retaining ring 6 of 5 two sides of groove by screw 9, so that box body 2 and air inlet
Channel 4 is fixedly connected, and structure is simple, easy to connect, is easily opened after solving inlet channel 4 and 2 integrated injection molding of box body
The problem of splitting.
The box body 2 is connected with inlet channel 4, and the box body 2 is equipped with first through hole 10, and the groove 5 is equipped with
Second through-hole 11 corresponding with first through hole 10 is equipped with rubber connecting the two between the first through hole 10 and the second through-hole 11
Set 12, described 12 one end of rubber sleeve is set at box body 2, and the other end is set in inlet channel 4.First through hole 10 and second is led to
Hole 11 may make the air mass flow sensing element of setting on circuit boards to protrude into inlet channel 4 from box body 2, and rubber sleeve 12 is set
Setting can prevent the gas in inlet channel 4 from leaking.
The annular groove 13 that can be used for mounting circuit boards is equipped in the box body 2.The installation of circuit board is convenient in setting in this way, and makes
The installation for obtaining circuit board is relatively reliable.
The retaining ring 6 is connected with main casing 1 by screw 9.In this way setting so that the connection of retaining ring 6 and main casing 1 more
Securely, and keep the fixation for the box body 2 being connected with retaining ring 6 relatively reliable.
Strainer 14 is respectively equipped at the both ends open of the inlet channel 4.Strainer 14 is arranged can be to flowing through inlet channel 4
The air at both ends further filters, and has prevented impurity from being brought into inlet channel 4 by air.
Claims (5)
1. a kind of shell of air flow sensor, the box including main casing and for circuit board and signal transmission component to be arranged
Body, the box body are equipped with the outer cover that can cover box body, are equipped with inlet channel in the main casing, it is characterised in that: described
Main casing is equipped with the groove of mountable box body, and the axial sides of the groove are equipped with retaining ring, and the retaining ring is equipped with connecting hole,
The box body is correspondingly connected with hole and offers threaded hole and be connected by screw.
2. the shell of air flow sensor according to claim 1, it is characterised in that: the box body and inlet channel phase
Connection, the box body are equipped with first through hole, and the groove is equipped with the second through-hole corresponding with first through hole, and described first is logical
Rubber sleeve connecting the two is equipped between hole and the second through-hole, described rubber sleeve one end is set at box body, and the other end is set in
In inlet channel.
3. the shell of air flow sensor according to claim 1 or 2, it is characterised in that: being equipped in the box body can
Annular groove for mounting circuit boards.
4. the shell of air flow sensor according to claim 1, it is characterised in that: the retaining ring passes through with main casing
Screw is connected.
5. the shell of air flow sensor according to claim 1, it is characterised in that: open at the both ends of the inlet channel
Strainer is respectively equipped at mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920425976.1U CN209687614U (en) | 2019-03-29 | 2019-03-29 | A kind of shell of air flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920425976.1U CN209687614U (en) | 2019-03-29 | 2019-03-29 | A kind of shell of air flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209687614U true CN209687614U (en) | 2019-11-26 |
Family
ID=68606896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920425976.1U Expired - Fee Related CN209687614U (en) | 2019-03-29 | 2019-03-29 | A kind of shell of air flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209687614U (en) |
-
2019
- 2019-03-29 CN CN201920425976.1U patent/CN209687614U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191126 |