CN220270538U - Air flow sensor with high precision - Google Patents
Air flow sensor with high precision Download PDFInfo
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- CN220270538U CN220270538U CN202321422224.2U CN202321422224U CN220270538U CN 220270538 U CN220270538 U CN 220270538U CN 202321422224 U CN202321422224 U CN 202321422224U CN 220270538 U CN220270538 U CN 220270538U
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- air flow
- flow sensor
- screw rod
- wall
- sensor body
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- 238000001514 detection method Methods 0.000 claims abstract description 15
- 230000001681 protective effect Effects 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of air flow sensors, in particular to an air flow sensor with high precision, which comprises an air flow sensor body and an electric connector, wherein detection devices are arranged on the left side and the right side of the electric connector, and connecting devices are arranged on the inner side of the detection devices. Can filter the air that gets into air flow sensor body through the protection network, make the output shaft of motor drive first screw rod again and carry out regular reciprocating motion, first screw rod cooperation corresponding structure drives brush reciprocating motion, just so can clear up the surface of protection network through the brush, avoid the dust can block up the aperture on the protection network to just also guaranteed that the air is stable in entering into air flow sensor body through the protection network, just so can carry out accurate detection through air flow sensor body.
Description
Technical Field
The utility model relates to the technical field of air flow sensors, in particular to an air flow sensor with high precision.
Background
The air flow sensor, also called an air flow meter, is one of the important sensors of an electronic injection engine, converts the sucked air flow into an electric signal, sends the electric signal to an electronic control unit, and is one of the basic signals for determining fuel injection, and is a sensor for measuring the sucked air flow of the engine.
An air flow sensor, such as grant publication number CN 211602056U, includes a sensor body. Because the protection network is located between the gland and the sensor main body, only the gland needs to be rotated anticlockwise to detach the protection network when the new protection network needs to be replaced, then the protection network is clamped out by using a tool to replace new parts, the maintenance cost of the protection network is greatly reduced, the whole structure is simple, the functionality is stronger, and the air flow sensor is relatively practical, the protection network is arranged at the two ends of the sensor main body, air enters the sensor main body through the protection network, and air flow detection is realized, however, because the cleaning structure is not arranged at the protection network, and a large amount of dust is contained in the air, when the air enters the sensor main body through the protection network, the dust in the air can be intercepted by the protection network, after a period of use, a large amount of dust can be accumulated on the protection network, so that the dust can block holes on the protection network, the total amount of air entering the sensor main body is reduced, and the air flow detection precision of the sensor main body is reduced.
Disclosure of Invention
The utility model aims to solve the problems that in the air flow sensor in the patent, a cleaning structure is not arranged at a protective net, dust can block holes on the protective net, the total amount of air entering a sensor main body is reduced, and the detection precision of the air flow is reduced.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides an air flow sensor that precision is high, includes air flow sensor body and electric connector, air flow sensor body's below rigid coupling has electric connector, electric connector's below is connected with the plug through the connecting plate, detection device is installed to electric connector's left and right sides, connecting device is installed to detection device's inboard.
Preferably, the detection device comprises a first diaphragm, the inside of first diaphragm is fixedly connected with the outer wall of electric connector, the inside rotation in the left and right sides of first diaphragm is connected with first screw rod, and the top rotation of first screw rod is connected with the second diaphragm, the middle outer wall threaded connection of first screw rod has the brush, the inboard laminating of brush has the protection network, and the inboard of protection network is laminated with the outer wall of air flow sensor body mutually.
Preferably, a motor is fixedly connected below the first screw rod, a base is fixedly connected to the middle outer wall of the motor, and the upper part of the base is fixedly connected with the first transverse plate.
Preferably, the connecting device comprises a vertical plate, the inside and the top of the vertical plate are fixedly connected with the air flow sensor body and the outer wall of the second transverse plate respectively, a second screw rod is mounted in the upper and lower parts of the vertical plate, the middle outer wall of the second screw rod is in clearance fit with the inner wall of a through hole of the vertical plate, a stop block is fixedly connected with the outer side of the second screw rod, an arc plate is attached to the inner side of the stop block, the inner wall of the through hole of the arc plate is in clearance fit with the outer wall of the second screw rod, and the inner side of the arc plate is fixedly connected with a protective net.
Preferably, the inner side outer wall threaded connection of controlling the second screw rod has the nut, the outer wall laminating of nut has the gasket, and the through-hole department inner wall of gasket and the outer wall clearance fit of second screw rod.
The air flow sensor with high precision provided by the utility model has the beneficial effects that: the protection net can be installed on two sides of the air flow sensor body, the second screw rod sequentially penetrates through the through holes of the arc-shaped plate and the vertical plate, the outer wall of the stop block is attached to the outer wall of the arc-shaped plate, the gasket and the nut are sequentially installed on the second screw rod, the protection net can be fixed on the air flow sensor body through the nut, the vertical plate, the arc-shaped plate and the like, air entering the air flow sensor body can be filtered through the protection net, the motor is started again, the output shaft of the motor drives the first screw rod to regularly and reciprocally rotate, the first screw rod is matched with a corresponding structure to drive the brush to reciprocally move, the surface of the protection net can be cleaned through the brush, holes on the protection net can be prevented from being blocked by dust, and therefore air can be accurately detected through the air flow sensor body after the protection net is guaranteed.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a plan cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the brush, stem and first screw of FIG. 1;
FIG. 4 is a schematic view of the motor, housing and first cross plate of FIG. 2;
fig. 5 is a schematic view of the second screw, nut and stop of fig. 2.
In the figure: 1. the air flow sensor comprises an air flow sensor body, 2, an electric connector, 3, a detection device, 301, a first transverse plate, 302, a first screw rod, 303, a second transverse plate, 304, a hairbrush, 305, a protective net, 3A1, rectangular blocks, 3A2, vertical rods, 4, a connecting device, 401, a vertical plate, 402, a second screw rod, 403, a stop block, 404, an arc plate, 5, a connecting plate, 6, a plug, 7, a motor, 8, a base, 9, a nut, 10 and a gasket.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
examples
Referring to fig. 1-5, in this embodiment, an air flow sensor with high precision includes an air flow sensor body 1 and an electrical connector 2, wherein the model of the air flow sensor body 1 can be selected according to the needs of a user, the electrical connector 2 is fixedly connected with the lower part of the air flow sensor body 1, a plug 6 is connected with the lower part of the electrical connector 2 through a connecting plate 5, detecting devices 3 are installed on the left and right sides of the electrical connector 2, and a connecting device 4 is installed on the inner side of the detecting device 3.
Referring to fig. 1-4, the detection device 3 includes a first transverse plate 301, a first screw rod 302, a second transverse plate 303, a brush 304 and a protection net 305, wherein the inside of the first transverse plate 301 is fixedly connected with the outer wall of the electric connector 2, the first screw rod 302 is rotatably connected to the inside of the left and right sides of the first transverse plate 301, the second transverse plate 303 is rotatably connected to the upper part of the first screw rod 302, the brush 304 is screwed to the middle outer wall of the first screw rod 302, the brush 304 can be driven to move by the first screw rod 302, the protection net 305 is attached to the inner side of the brush 304, the protection net 305 can be cleaned by the brush 304, the inner side of the protection net 305 is attached to the outer wall of the air flow sensor body 1, a motor 7 is fixedly connected to the lower part of the first screw rod 302, the model of the motor 7 can be selected according to the requirement of a user, the first screw rod 302 can be driven to rotate by the output shaft of the motor 7, a base 8 is fixedly connected to the middle outer wall of the motor 7, and the upper part of the base 8 is fixedly connected to the first transverse plate 301;
the air entering the air flow sensor body 1 can be filtered through the protective screen 305, the external power supply of the motor 7 is connected, the motor 7 is started, the output shaft of the motor 7 drives the first screw rod 302 to regularly and reciprocally rotate, the first screw rod 302 is matched with a corresponding structure to drive the hairbrush 304 to reciprocally move, the surface of the protective screen 305 can be cleaned through the hairbrush 304, holes on the protective screen 305 are prevented from being blocked by dust, and therefore stable air is guaranteed to enter the air flow sensor body 1 through the protective screen 305, and the air flow can be accurately detected through the air flow sensor body 1.
Referring to fig. 1, 2 and 5, the connecting device 4 comprises a vertical plate 401, a second screw rod 402, a stop block 403 and an arc plate 404, wherein the inside and the upper part of the left vertical plate 401 are respectively and fixedly connected with the air flow sensor body 1 and the outer wall of the second transverse plate 303, 2 through holes are machined in the inside of the vertical plate 401, the second screw rod 402 is installed in the upper part and the lower part of the vertical plate 401, the middle outer wall of the second screw rod 402 is in clearance fit with the inner wall of the through hole of the vertical plate 401, the stop block 403 is fixedly connected with the outer side of the left and the right second screw rods 402, the arc plate 404 is attached to the inner side of the stop block 403, the through hole is machined in the arc plate 404, the stop block 403 is matched with the through hole of the arc plate 404 to limit the second screw rod 402, the inner side of the arc plate 404 is fixedly connected with the protective net 305, the inner side of the left and the outer wall of the second screw rod 402 is in threaded connection with a 9, the nut 9 can move on the second screw rod 402, the outer wall of the nut 9 is attached to a gasket 10, the inner wall of the through hole of the gasket 10 is in clearance fit with the outer wall of the second screw rod 402, and the clearance fit between the gasket 10 can be improved;
the protection net 305 can be mounted on two sides of the air flow sensor body 1, then the second screw rod 402 sequentially passes through the through holes of the arc plate 404 and the vertical plate 401, the outer wall of the stop block 403 is attached to the outer wall of the arc plate 404, and then the gasket 10 and the nut 9 are sequentially mounted on the second screw rod 402, so that the protection net 305 can be fixed on the air flow sensor body 1 by matching the nut 9 with the second screw rod 402, the vertical plate 401, the arc plate 404 and the like.
In this embodiment, when an operator needs to use the air flow sensor with high precision, firstly, the operator can install the protection net 305 on two sides of the air flow sensor body 1, then sequentially pass the second screw 402 through the through holes of the arc plate 404 and the vertical plate 401, and make the outer wall of the stop block 403 fit with the outer wall of the arc plate 404, and then sequentially install the gasket 10 and the nut 9 on the second screw 402, so that the nut 9 cooperates with the second screw 402, the vertical plate 401 and the arc plate 404, and the like to fix the protection net 305 on the air flow sensor body 1, the air entering the air flow sensor body 1 can be filtered through the protection net 305, then the external power supply of the motor 7 is connected, the motor 7 is started, the output shaft of the motor 7 drives the first screw 302 to perform regular reciprocating rotation, and the first screw 302 cooperates with the corresponding structure to drive the brush 304 to reciprocate, so that the surface of the protection net 305 can be cleaned through the brush 304, the holes on the protection net 305 can be avoided, and thus the stable air can be blocked up to enter the air flow sensor body 1, and thus the air flow can be accurately detected through the air flow sensor body 1.
Examples
Referring to fig. 1-5, in this embodiment, the present utility model provides a technical solution: the air flow sensor with high precision can be provided with a detection device 3, which also comprises rectangular blocks 3A1 and vertical rods 3A2, wherein the inner sides of the left rectangular block 3A1 and the right rectangular block 3A1 are fixedly connected with a hairbrush 304, through holes are formed in the rectangular blocks 3A1, the vertical rods 3A2 are arranged in the rectangular blocks 3A1, the outer walls of the vertical rods 3A2 are in clearance fit with the inner walls of the through holes of the rectangular blocks 3A1, and the upper outer wall and the lower outer wall of the vertical rods 3A2 are fixedly connected with a second transverse plate 303 and a first transverse plate 301 respectively;
2 rectangular blocks 3A1 can be arranged on the outer side of the brush 304, and vertical rods 3A2 are arranged in the rectangular blocks 3A1, so that the brush 304 can be limited through the vertical rods 3A2 and the rectangular blocks 3A1, and the brush 304 can be stably moved.
In this embodiment, when the operator needs to use the air flow sensor with high precision, 2 rectangular blocks 3A1 can be arranged on the outer side of the brush 304, and vertical rods 3A2 are arranged in the rectangular blocks 3A1, so that the brush 304 can be limited through the vertical rods 3A2 and the rectangular blocks 3A1, and the brush 304 can be stably moved.
While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.
Claims (5)
1. The utility model provides an air flow sensor that precision is high, includes air flow sensor body (1) and electric connector (2), the below rigid coupling of air flow sensor body (1) has electric connector (2), its characterized in that: the utility model discloses a plug, including electric connector (2), connecting plate (5), detection device (3) are installed to the left and right sides of electric connector (2), connecting device (4) are installed to the inboard of detection device (3).
2. An accurate air flow sensor according to claim 1, characterized in that: the detection device (3) comprises a first transverse plate (301), the inside of the first transverse plate (301) is fixedly connected with the outer wall of the electric connector (2), a first screw rod (302) is rotatably connected to the inside of the left side and the right side of the first transverse plate (301), a second transverse plate (303) is rotatably connected to the upper side of the first screw rod (302), a hairbrush (304) is in threaded connection with the middle outer wall of the first screw rod (302), a protective net (305) is attached to the inner side of the hairbrush (304), and the inner side of the protective net (305) is attached to the outer wall of the air flow sensor body (1).
3. An accurate air flow sensor according to claim 2, characterized in that: the motor (7) is fixedly connected below the first screw rod (302), the base (8) is fixedly connected to the middle outer wall of the motor (7), and the upper part of the base (8) is fixedly connected with the first transverse plate (301).
4. An accurate air flow sensor according to claim 1, characterized in that: connecting device (4) are including riser (401), control the inside and the top of riser (401) are respectively with the outer wall looks rigid coupling of air flow sensor body (1) and second diaphragm (303), the upper and lower side internally mounted of riser (401) has second screw rod (402), and the middle outer wall of second screw rod (402) and the through-hole department inner wall clearance fit of riser (401), control the outside rigid coupling of second screw rod (402) has dog (403), the inboard laminating of dog (403) has arc (404), and the through-hole department inner wall of arc (404) and the outer wall clearance fit of second screw rod (402), upper and lower the inboard of arc (404) is with protection network (305) looks rigid coupling.
5. A high accuracy air flow sensor according to claim 4, characterized in that: the left and right inner side outer wall threaded connection of second screw rod (402) has nut (9), the outer wall laminating of nut (9) has gasket (10), and the through-hole department inner wall and the outer wall clearance fit of second screw rod (402) of gasket (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321422224.2U CN220270538U (en) | 2023-06-06 | 2023-06-06 | Air flow sensor with high precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321422224.2U CN220270538U (en) | 2023-06-06 | 2023-06-06 | Air flow sensor with high precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220270538U true CN220270538U (en) | 2023-12-29 |
Family
ID=89317259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321422224.2U Active CN220270538U (en) | 2023-06-06 | 2023-06-06 | Air flow sensor with high precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220270538U (en) |
-
2023
- 2023-06-06 CN CN202321422224.2U patent/CN220270538U/en active Active
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