CN108759964B - Automobile air flowmeter - Google Patents
Automobile air flowmeter Download PDFInfo
- Publication number
- CN108759964B CN108759964B CN201810261445.3A CN201810261445A CN108759964B CN 108759964 B CN108759964 B CN 108759964B CN 201810261445 A CN201810261445 A CN 201810261445A CN 108759964 B CN108759964 B CN 108759964B
- Authority
- CN
- China
- Prior art keywords
- shell
- filter screen
- frame
- metal
- air inlet
- 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.)
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- 239000002184 metal Substances 0.000 claims abstract description 39
- 238000009434 installation Methods 0.000 claims abstract description 7
- 239000003365 glass fiber Substances 0.000 claims abstract description 4
- 239000004033 plastic Substances 0.000 claims abstract description 4
- 229920003023 plastic Polymers 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/14—Casings, e.g. of special material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/12—Cleaning arrangements; Filters
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to an automobile accessory, in particular to an automobile air flow meter. The technical proposal is as follows: the utility model provides an automobile air flowmeter, including the shell, locate the flow sensor in the shell, the grid baffle that admits air, metal filter and grid baffle that gives vent to anger, the shell is including outer, middle level and inlayer, outer the plastics body that is, the middle level is thermal-insulated dictyosome, the inlayer is the glass fiber layer, the inlayer of shell is located the installation department of metal filter and is equipped with the extension arch that extends towards inlayer middle part, metal filter is including the frame and be in the filter screen in the frame, be equipped with on the frame with the draw-in groove that extends protruding adaptation, erect on the frame metal mesh density sensor and can receive the vibration mechanism that metal mesh density sensor signal and promotion filter screen shake. By adopting the technical scheme, the automobile air flow meter is capable of preventing the inside of the shell from being overheated, is high in sensing sensitivity of the flow sensor, and is capable of preventing the metal filter screen from being blocked and is good in stability.
Description
Technical Field
The invention relates to an automobile accessory, in particular to an automobile air flow meter.
Background
The automobile air flowmeter is used for detecting the air inflow of an engine and transmitting signals with a vehicle-mounted driving computer. If the automobile air flow meter fails, the vehicle-mounted driving computer can not obtain a correct air inflow signal, the oil injection quantity in the engine can not be controlled, and the air-fuel mixture in the engine is caused to be too rich or too lean, so that the engine can not work normally.
The traditional automobile air flowmeter mainly comprises a shell, a flow sensor arranged in the shell, an air inlet grid partition plate, a metal filter screen and an air outlet grid partition plate. The formation of the main failure rate is mainly that the temperature in the shell is overheated to cause the failure of the flow sensor, and excessive dust is accumulated on the metal filter screen to cause the blockage of the metal filter screen, so that the inlet amount and the outlet amount are influenced. If the air inflow or the air outflow can not reach the expected quantification, the flow sensor can not detect the air inflow and the air outflow signals, and therefore the vehicle-mounted driving computer can not detect the air outflow signals.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides the automobile air flow meter which is capable of preventing the inside of the shell from being overheated, has high induction sensitivity of the flow sensor, prevents a metal filter screen from being blocked and has good stability.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an automobile air flowmeter, includes the shell, locates flow sensor, air inlet grid baffle, metal filter and the air outlet grid baffle in the shell, its characterized in that: the shell including skin, middle level and inlayer, the skin be the plastic body, the middle level is the thermal-insulated dictyosome that is vertically and horizontally staggered form winding shaping, the inlayer is the glass fiber layer, the inlayer of shell is located the installation department of metal filter and is equipped with the extension arch that extends towards inlayer middle part, metal filter is including the frame and be in the filter screen in the frame, be equipped with on the frame with the draw-in groove that extends protruding adaptation, erect on the frame metal mesh density sensor and can receive the vibration mechanism that metal mesh density sensor signal and impel the filter screen shake.
By adopting the technical scheme, the shell is arranged into the outer layer, the middle layer and the inner layer, and the middle layer is the heat insulation net body, and the heat insulation net body can isolate heat energy outside the shell, so that the temperature inside the shell is controllable, the flow sensor is prevented from being heated to be failed, and the sensitivity is always kept; the metal mesh density sensor at the metal filter part can detect whether sundries exist in the meshes of the filter screen, if the sundries exist, the metal mesh density sensor sends signals to the vibration mechanism, the vibration mechanism vibrates the filter screen, the sundries in the meshes of the filter screen are removed, the cleaning and filtering effects of the filter screen are guaranteed, and accordingly the air inflow and the air outlet are guaranteed.
The invention is further provided with: the inner wall of the frame is provided with a mounting groove for mounting the edge of the filter screen, one end of the edge of the filter screen is connected with the mounting groove through a connecting column which can move in the mounting groove, the other end of the edge of the filter screen is provided with an elastic piece which is abutted against the edge of the filter screen, and the vibration mechanism comprises a miniature motor which is linked with the connecting column.
By adopting the technical scheme, the device is simple in structure and stable in structure, the micro motor receives signals of the metal mesh density sensor, driving is implemented on the connecting column after starting, the connecting column is abutted to the edge of the filter screen, and meanwhile, the filter screen is enabled to shake by the elastic force of the spring, so that sundries in meshes of the filter screen are removed, the filter screen is kept clean, and blocking is prevented.
The invention is further arranged as follows: the cross section of the filter screen is conical and is sunken towards the direction of the air outlet grid partition plate.
By adopting the technical scheme, the filtering effect is better.
The invention is further arranged as follows: the included angle between the crisscrossed metal ropes in the heat insulation net body is 15-25 degrees.
By adopting the technical scheme, the heat insulation effect is more obvious, and the external temperature can be effectively prevented from entering the shell.
The invention is further arranged as follows: the extension bulge of the inner layer of the shell is conical, and the clamping groove on the frame in the metal filter piece is a conical clamping groove matched with the conical extension bulge.
By adopting the technical scheme, the clamping connection is firm, and falling off can not occur.
The invention is further arranged as follows: the air inlet grid partition plate comprises an outer ring which is clamped with the outer shell and a grid-shaped plate body which is arranged in the outer ring, a plurality of air inlets are uniformly distributed on the grid-shaped plate body, each grid-shaped air inlet is provided with a large end and a small end, the air inlet end is the large end, and one end facing the air outlet grid partition plate is the small end.
By adopting the technical scheme, the air inlet pressure is set to be high, and the air inlet speed is improved.
The invention is further provided with an elastic locking mechanism between the outer ring of the air inlet grating baffle plate and the outer ring of the air inlet grating baffle plate, wherein the elastic locking mechanism comprises a notch arranged on the inner layer of the outer shell, a spring arranged in the notch and a locking block abutted against the spring, and the outer ring of the air inlet grating baffle plate is provided with a locking hole matched with the locking block.
By adopting the technical scheme, the device is firm in connection and convenient to assemble and disassemble.
The invention is further described below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
fig. 2 is an enlarged schematic view of the portion I of fig. 1.
Detailed Description
The automobile air flowmeter shown in fig. 1 and 2 comprises a shell 1, a flow sensor 2 arranged in the shell 1, an air inlet grating baffle 3, a metal filter element 4 and an air outlet grating baffle 5, wherein the shell 1 comprises an outer layer 11, a middle layer 12 and an inner layer 13, the outer layer 11 is a plastic body, the middle layer 12 is a heat insulation net body which is formed by winding in a criss-cross mode, the inner layer 13 is a glass fiber layer, an extension bulge 131 extending towards the middle part of the inner layer 13 is arranged at the installation position of the inner layer 13 of the shell 1, the metal filter element 4 comprises a frame 41 and a filter screen 42 arranged in the frame 41, a clamping groove 411 matched with the extension bulge 131 is arranged on the frame 41, and the frame 41 is provided with a metal mesh density sensor 6 and a vibration mechanism 7 which can receive signals of the metal mesh density sensor 6 and promote the filter screen 42 to shake. In the above scheme, the outer shell 1 is arranged as the outer layer 11, the middle layer 12 and the inner layer 13, and the middle layer 12 is a heat insulation net body, and the heat insulation net body can isolate heat energy outside the outer shell 1, so that the temperature inside the outer shell 1 is controllable, the flow sensor 2 is prevented from being heated to be failed, and the sensitivity is always kept; the metal mesh density sensor 6 at the metal filter 4 can detect whether sundries exist in the meshes of the filter screen 42, if sundries exist, the metal mesh density sensor 6 sends signals to the vibration mechanism 7, the vibration mechanism 7 vibrates the filter screen 42, sundries in the meshes of the filter screen 42 are removed, and the cleaning and filtering effects of the filter screen 42 are guaranteed, so that the air inflow and the air outflow are guaranteed.
In the embodiment of the invention, the inner wall of the frame 41 is provided with a mounting groove 412 for mounting the edge of the filter screen 42, one end of the edge of the filter screen 42 is connected with the mounting groove 412 through a connecting column 413 which can move in the mounting groove 412, the other end is provided with an elastic piece 414 which is abutted against the edge of the filter screen 42, and the vibration mechanism 7 comprises a micro motor which is linked with the connecting column 413; the filter screen 42 has a tapered cross section and is recessed toward the louver diaphragm 5. The micro motor receives the signal of the metal mesh density sensor 6, drives the connecting column 413 after starting, and the connecting column 413 abuts against the edge of the filter screen 42 and is simultaneously subjected to the elastic force of the elastic piece 414, so that the filter screen 42 is enabled to shake, impurities in the meshes of the filter screen 42 are removed, the filter screen 42 is kept clean, and blocking is prevented.
In order to ensure the heat insulation effect of the heat insulation net body. The included angle between the crisscrossed metal ropes in the heat insulation net body in the embodiment of the invention is 15-25 degrees.
In order to facilitate the connection between the metal filter element 4 and the inner layer 13 of the housing 1, at the same time preventing the metal filter element 4 from falling out of the housing 1. The extension bulge 131 of the inner layer 13 of the outer shell 1 is conical, and the clamping groove 411 on the frame 41 of the metal filter 4 is a conical clamping groove matched with the conical extension bulge 131. It should be noted that, of course, it is also possible to provide the tapered locking groove on the inner layer 13 of the housing 1 and the extension projection on the frame 41.
In the embodiment of the invention, in order to improve the air inflow and the air inflow speed. The air inlet grid partition plate 3 comprises an outer ring 31 which is clamped with the shell 1 and a grid-shaped plate body 32 which is arranged in the outer ring 31, a plurality of air inlets 321 are uniformly distributed on the grid-shaped plate body 32, each grid-shaped air inlet 321 is provided with a large end 3211 and a small end 3212, the air inlet end is the large end 3211, and the end facing the air outlet grid partition plate 5 is the small end 3212.
In order to facilitate the disassembly and assembly between the air inlet grating baffle plate 3 and the shell 1, the firmness of the connection between the air inlet grating baffle plate 3 and the shell 1 is ensured. An elastic locking mechanism 8 is arranged between the shell 1 and the outer ring 31 of the air inlet grating baffle plate 3, the elastic locking mechanism 8 comprises a notch 132 formed in the inner layer 13 of the shell 1, a spring 81 arranged in the notch 132 and a locking block 82 abutting against the spring 81, and a locking hole 311 matched with the locking block 82 is formed in the outer ring 31 of the air inlet grating baffle plate 3.
Claims (1)
1. The utility model provides an automobile air flowmeter, includes the shell, locates flow sensor, air inlet grid baffle, metal filter and the air outlet grid baffle in the shell, its characterized in that: the shell comprises an outer layer, a middle layer and an inner layer, wherein the outer layer is a plastic body, the middle layer is a heat insulation net body which is formed by criss-cross winding, the inner layer is a glass fiber layer, an extension bulge which extends towards the middle part of the inner layer is arranged at the installation position of the inner layer of the shell, the metal filter comprises a frame and a filter screen which is positioned in the frame, a clamping groove which is matched with the extension bulge is arranged on the frame, a metal mesh density sensor and a vibration mechanism which can receive signals of the metal mesh density sensor and promote the filter screen to shake are arranged on the frame, an installation groove for installing the edge of the filter screen is arranged on the inner wall of the frame, one end of the edge of the filter screen is connected with the installation groove through a connecting column which can be positioned in the installation groove, an elastic sheet which is in conflict with the edge of the filter screen is arranged at the other end, the vibration mechanism comprises a micro motor linked with a connecting column, the cross section of the filter screen is conical, the filter screen is sunken towards the direction of the air outlet grating partition plate, the included angle between the crisscrossed metal ropes in the heat insulation net body is 15-25 degrees, the extension bulge of the inner layer of the shell is conical, the clamping groove on the frame in the metal filter piece is a conical clamping groove matched with the conical extension bulge, the air inlet grating partition plate comprises an outer ring clamped with the shell and a grid plate body arranged in the outer ring, a plurality of air inlets are uniformly distributed on the grid plate body, each grid air inlet is provided with a large end and a small end, the air inlet end is a large end, one end facing the air outlet grating partition plate is a small end, an elastic locking mechanism is arranged between the outer ring of the shell and the air inlet grating partition plate, the elastic locking mechanism comprises a notch arranged on the inner layer of the shell, a spring arranged in the notch and a locking block abutted with the spring, and a locking hole matched with the locking block is formed in the outer ring of the air inlet grid partition plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810261445.3A CN108759964B (en) | 2018-03-28 | 2018-03-28 | Automobile air flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810261445.3A CN108759964B (en) | 2018-03-28 | 2018-03-28 | Automobile air flowmeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108759964A CN108759964A (en) | 2018-11-06 |
| CN108759964B true CN108759964B (en) | 2024-02-27 |
Family
ID=63980427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810261445.3A Active CN108759964B (en) | 2018-03-28 | 2018-03-28 | Automobile air flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108759964B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109839164A (en) * | 2019-04-08 | 2019-06-04 | 温州钱王汽配有限公司 | A kind of automobile air flow meter |
| CN115290156B (en) * | 2022-07-15 | 2023-04-28 | 温州荣际新能源有限公司 | Air flow sensor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2699246Y (en) * | 2003-01-16 | 2005-05-11 | 吴庠泽 | Portable air flow meter for air discharge measurement |
| KR20060026044A (en) * | 2005-12-12 | 2006-03-22 | 주식회사 두원전자 | Automobile gas detector |
| CN203396675U (en) * | 2013-08-22 | 2014-01-15 | 河南理工大学 | Pulverized coal monitoring system for exhausting-extracting process of coal-bed gas well |
| CN203672437U (en) * | 2014-01-15 | 2014-06-25 | 瑞安市宏创汽车配件有限公司 | Air flow meter of automobile |
| CN204882318U (en) * | 2015-07-31 | 2015-12-16 | 辽宁森林木纸业有限公司 | Gas permeability detector |
| CN204944593U (en) * | 2015-09-22 | 2016-01-06 | 浙江恒光汽车部件有限公司 | Automobile air flow meter |
| CN206847709U (en) * | 2017-06-15 | 2018-01-05 | 天津石生科技有限责任公司 | A kind of efficient multi-functional flow sensor |
| CN208223582U (en) * | 2018-03-28 | 2018-12-11 | 温州鼎程电子科技有限公司 | Automobile air flow meter |
-
2018
- 2018-03-28 CN CN201810261445.3A patent/CN108759964B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2699246Y (en) * | 2003-01-16 | 2005-05-11 | 吴庠泽 | Portable air flow meter for air discharge measurement |
| KR20060026044A (en) * | 2005-12-12 | 2006-03-22 | 주식회사 두원전자 | Automobile gas detector |
| CN203396675U (en) * | 2013-08-22 | 2014-01-15 | 河南理工大学 | Pulverized coal monitoring system for exhausting-extracting process of coal-bed gas well |
| CN203672437U (en) * | 2014-01-15 | 2014-06-25 | 瑞安市宏创汽车配件有限公司 | Air flow meter of automobile |
| CN204882318U (en) * | 2015-07-31 | 2015-12-16 | 辽宁森林木纸业有限公司 | Gas permeability detector |
| CN204944593U (en) * | 2015-09-22 | 2016-01-06 | 浙江恒光汽车部件有限公司 | Automobile air flow meter |
| CN206847709U (en) * | 2017-06-15 | 2018-01-05 | 天津石生科技有限责任公司 | A kind of efficient multi-functional flow sensor |
| CN208223582U (en) * | 2018-03-28 | 2018-12-11 | 温州鼎程电子科技有限公司 | Automobile air flow meter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108759964A (en) | 2018-11-06 |
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