CN203657880U - Air flow sensor - Google Patents
Air flow sensor Download PDFInfo
- Publication number
- CN203657880U CN203657880U CN201320895050.1U CN201320895050U CN203657880U CN 203657880 U CN203657880 U CN 203657880U CN 201320895050 U CN201320895050 U CN 201320895050U CN 203657880 U CN203657880 U CN 203657880U
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- CN
- China
- Prior art keywords
- air flow
- base
- upper cover
- shell
- circuit board
- 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
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Abstract
The utility model relates to an air flow sensor. The air flow sensor comprises a housing and a sensor body arranged on the housing. An air flow channel is arranged on the housing. The sensor body comprises an installing housing, a circuit board, a probe and output pins. The probe, the output pins and the circuit board are connected. The installing housing comprises an upper cover and a base, on which a groove for placing the circuit board is arranged. The probe penetrates through the housing and extends to the air flow channel. The upper cover is fixedly connected with the base via screws. The air flow sensor is characterized in that: an inserting board is arranged along the circumferential direction of the groove on the base; the lower end surface, corresponding to the position of the inserting board, of the upper cover is provided with an inserting groove, in which the inserting board is inserted. The air flow sensor has following beneficial effects: by adoption of the above technical scheme, the good sealing performance between the upper cover and the base is obtained to ensure stable working performance of the circuit board.
Description
Technical field
The utility model relates to a kind of sensor, particularly a kind of air flow sensor.
Background technology
Air flow sensor, also claims air flowmeter, is one of important sensor of electronic fuel injection engine.It converts the air mass flow of suction to electric signal and delivers to ECU (Electrical Control Unit), as determining one of baseband signal of oil spout, is to measure the sensor that sucks engine air capacity.
Existing air flow sensor, include shell, be arranged on the sensor body on shell, described shell is provided with air flow channel, and described sensor body includes mounting shell, circuit board, probe, output pin, and described probe, output pin are connected with circuit board, described mounting shell includes upper cover, base, described base is provided with the groove that power circuit board is placed, and described probe extends in air flow channel through shell, and described upper cover is fixedly connected with through screw with base.But, the air flow sensor of this structure, its sealing is poor, and some impurity easily enter between upper cover and base the serviceability that affects circuit board in groove, cause air flow measurement out of true, and then affect the serviceability of engine.
Summary of the invention
The purpose of this utility model: in order to overcome the defect of prior art, the utility model provides a kind of air flow sensor, and it can make good airproof performance between upper cover and base, thereby the stable work in work of assurance circuit board.
The technical solution of the utility model: a kind of air flow sensor, include shell, be arranged on the sensor body on shell, described shell is provided with air flow channel, described sensor body includes mounting shell, circuit board, probe, output pin, described probe, output pin is connected with circuit board, described mounting shell includes upper cover, base, described base is provided with the groove that power circuit board is placed, described probe extends in air flow channel through shell, described upper cover is fixedly connected with through screw with base, it is characterized in that: on described base, be circumferentially with plate along groove, on described upper cover lower surface, corresponding the attracted numbers is provided with slot, described inserting board is located in described slot.
Adopt technique scheme, by the plate, the slot that arrange, plate is inserted in slot, make like this surface of contact between upper cover, base large, can be able to well groove be isolated from the outside, thereby improve the sealing effectiveness between upper cover and base, and then guaranteed the stable work in work of circuit board; And, in the time of mounting seat, upper cover, plate is inserted in slot, between upper cover, base, can not produce like this position skew, finally mounting screw again, thus make the assembling of upper cover, base convenient.
Further setting of the present utility model: it is circumferentially extended with gulde edge downwards described upper cover rim, also scribbles fixing glue between described gulde edge and base.
Adopt above-mentioned further setting, the fixing glue being coated with between gulde edge and base, can make between upper cover and base fixed; Can further improve again the sealing effectiveness between upper cover and base.
Further setting more of the present utility model: described base is that aluminum material is made, and the lower surface of described base is provided with radiating ribs, and described radiating ribs extends in air flow channel.
Adopt above-mentioned more further arrange, the base that aluminum material is made, thermal diffusivity is good, can guarantee sensor work long hours after stable work in work; The radiating ribs arranging, can further improve the radiating effect of base.
Of the present utility modelly further arrange: on described shell, be outward extended with projection, described projection is provided with pilot hole, and on described base, corresponding position of positioning hole is provided with mounting hole, in described pilot hole, mounting hole, is equipped with bolt.
Adopt above-mentioned further setting, because the Thickness Ratio of shell is thinner, the projection of setting can conveniently arrange pilot hole, and, can guarantee that base is connected reliably with shell.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model specific embodiment;
Fig. 2 is circuit board mounting structure schematic diagram in the utility model specific embodiment;
Fig. 3 is the utility model specific embodiment housing inner structure schematic diagram;
Fig. 4 is superstructure schematic diagram in the utility model specific embodiment;
Fig. 5 is understructure schematic diagram in the utility model specific embodiment.
Embodiment
As Figure 1-5, a kind of air flow sensor, include shell 1, be arranged on the sensor body 2 on shell 1, described shell 1 is provided with air flow channel 11, described sensor body 2 includes mounting shell 21, circuit board 22, probe 23, output pin 24, described probe 23, output pin 24 is connected with circuit board 22, described mounting shell 21 includes upper cover 211, base 212, described base 212 is provided with the groove 2121 that power circuit board 22 is placed, described probe 23 extends in air flow channel 11 through shell 1, described upper cover 211 is fixedly connected with through screw 4 with base 212, on described base 212, be circumferentially with plate 2122 along groove 2121, on described upper cover 211 lower surfaces, corresponding plate 2122 positions are provided with slot 2111, described plate 2122 is plugged in described slot 2111.Adopt technique scheme, by the plate 2122, the slot 2111 that arrange, plate 2122 is inserted in slot 2111, make like this surface of contact between upper cover 211, base 212 large, can be able to well groove 2121 be isolated from the outside, thereby improve the sealing effectiveness between upper cover 211 and base 212, and then guaranteed the stable work in work of circuit board 22; And, in the time of mounting seat 212, upper cover 211, plate 2122 is inserted in slot 2111, between upper cover 211, base 212, can not produce like this position skew, finally mounting screw again, thus make the assembling of upper cover 211, base 212 convenient.
In the utility model specific embodiment, described upper cover 211 is circumferentially extended with gulde edge 2112 downwards along it, between described gulde edge 2112 and base 212, also scribbles fixing glue.The fixing glue being coated with between gulde edge 2112 and base 212, can make between upper cover 211 and base 212 fixed; Can further improve again the sealing effectiveness between upper cover 211 and base 212.
In the utility model specific embodiment, described base 212 is made for aluminum material, and the lower surface of described base 212 is provided with radiating ribs 3, and described radiating ribs extends in air flow channel.The base 212 that aluminum material is made, thermal diffusivity is good, can guarantee sensor work long hours after stable work in work; The radiating ribs 3 arranging, can further improve the radiating effect of base 212.
In the utility model specific embodiment, on described shell 1, be outward extended with projection 12, described projection 12 is provided with pilot hole, and on described base 212, corresponding position of positioning hole is provided with mounting hole 2123, in described pilot hole, mounting hole 2123, is equipped with bolt 5.Because the Thickness Ratio of shell 1 is thinner, the projection 12 of setting can conveniently arrange pilot hole, and, can guarantee that base 212 is connected reliably with shell 1.
Claims (4)
1. an air flow sensor, include shell, be arranged on the sensor body on shell, described shell is provided with air flow channel, described sensor body includes mounting shell, circuit board, probe, output pin, described probe, output pin is connected with circuit board, described mounting shell includes upper cover, base, described base is provided with the groove that power circuit board is placed, described probe extends in air flow channel through shell, described upper cover is fixedly connected with through screw with base, it is characterized in that: on described base, be circumferentially with plate along groove, on described upper cover lower surface, corresponding the attracted numbers is provided with slot, described inserting board is located in described slot.
2. air flow sensor according to claim 1, is characterized in that: it is circumferentially extended with gulde edge downwards described upper cover rim, also scribbles fixing glue between described gulde edge and base.
3. air flow sensor according to claim 1 and 2, is characterized in that: described base is that aluminum material is made, and the lower surface of described base is provided with radiating ribs, and described radiating ribs extends in air flow channel.
4. air flow sensor according to claim 3, it is characterized in that: on described shell, be outward extended with projection, described projection is provided with pilot hole, and on described base, corresponding position of positioning hole is provided with mounting hole, in described pilot hole, mounting hole, is equipped with bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320895050.1U CN203657880U (en) | 2013-12-31 | 2013-12-31 | Air flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320895050.1U CN203657880U (en) | 2013-12-31 | 2013-12-31 | Air flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203657880U true CN203657880U (en) | 2014-06-18 |
Family
ID=50924257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320895050.1U Expired - Fee Related CN203657880U (en) | 2013-12-31 | 2013-12-31 | Air flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203657880U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091953A (en) * | 2015-08-27 | 2015-11-25 | 瑞安市宏创汽车配件有限公司 | Air flow sensor |
-
2013
- 2013-12-31 CN CN201320895050.1U patent/CN203657880U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091953A (en) * | 2015-08-27 | 2015-11-25 | 瑞安市宏创汽车配件有限公司 | Air flow sensor |
| CN105091953B (en) * | 2015-08-27 | 2018-08-21 | 瑞安市宏创汽车配件有限公司 | A kind of air flow sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20161231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |