CN204612854U - Air inlet pressure sensor for automobile - Google Patents
Air inlet pressure sensor for automobile Download PDFInfo
- Publication number
- CN204612854U CN204612854U CN201520203970.1U CN201520203970U CN204612854U CN 204612854 U CN204612854 U CN 204612854U CN 201520203970 U CN201520203970 U CN 201520203970U CN 204612854 U CN204612854 U CN 204612854U
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- CN
- China
- Prior art keywords
- air inlet
- fixed mount
- cylindrical shell
- lid
- pressure sensor
- 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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- Air-Conditioning For Vehicles (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a kind of air inlet pressure sensor for automobile, comprise sensor outer housing, air inlet cylindrical shell, wiring board, wire, sensor outer housing is respectively equipped with opening hollow cavity and side slot, connection terminal and plug is respectively arranged with in upper opening hollow cavity and side slot, wiring board to be located in air inlet cylindrical shell and to be connected to connection terminal by wire, also thermistor is provided with in air inlet cylindrical shell, resistance fixed mount, IC chip and undertaking lid, thermistor is installed on resistance fixed mount, wiring board is close in IC chip one end, the other end is connected to accepts lid, the other end accepting lid is connected to resistance fixed mount, resistance fixed mount covers with undertaking the fixed mount through hole and lid through hole that are respectively equipped with and are connected.The utility model by being provided with thermistor and IC chip in sensor outer housing, thus can overcome the defect that usual pressure sensor chip exists temperature drift, makes admission pressure more stable, is conducive to improving its usability.
Description
Technical field
The utility model relates to sensor technical field, is specifically related to a kind of air inlet pressure sensor for automobile.
Background technology
Automobile air inlet pressure sensor is installed on the house steward at air throttle of car back door, what its detected is the absolute pressure of the inlet manifold of below the throtlle valve, it goes out the change of absolute pressure in manifold according to the size detection of engine speed and load, then convert signal voltage to and deliver to electronic controller, electronic controller, according to the size of this signal voltage, controls the size of basic fuel injection amount.Traditional automobile air inlet pressure sensor is by comprising shell, air inlet cylindrical shell, chip and wiring board, shell is respectively equipped with opening hollow cavity and side slot, connection terminal and plug is respectively equipped with in upper opening hollow cavity and side slot, chip, wiring board are located in air inlet cylindrical shell, when air inlet cylindrical shell to be inserted in inlet manifold after zoarium, thus the air pressure in inlet manifold will directly act on wiring board, then convert signal voltage to and control the size of distributive value.But the common chip in existing air inlet pressure sensor exists the defect of temperature drift mostly, thus the instability of admission pressure can be caused, and affect the usability of air inlet pressure sensor.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of air inlet pressure sensor for automobile, solving existing air inlet pressure sensor due to inside chip exists the defect of temperature drift, admission pressure can be caused unstable, and affect the weak point of its usability.
In order to solve the problem existing for background technology, the utility model have employed following technical scheme: a kind of air inlet pressure sensor for automobile, comprise sensor outer housing, air inlet cylindrical shell, wiring board, wire, described sensor outer housing is respectively equipped with opening hollow cavity and side slot, connection terminal and plug is respectively arranged with in described upper opening hollow cavity and side slot, described air inlet cylindrical shell one end is connected in the upper opening hollow cavity of sensor outer housing, described wiring board to be located in air inlet cylindrical shell and to be connected to connection terminal by wire, also thermistor is provided with in described air inlet cylindrical shell, resistance fixed mount, IC chip and undertaking lid, described resistance fixed mount tight clamping fit is in air inlet cylinder inboard wall, described thermistor is installed on resistance fixed mount, wiring board is close in described IC chip one end, the other end is connected to accepts lid, the described other end accepting lid is connected to resistance fixed mount, described resistance fixed mount covers with undertaking the fixed mount through hole and lid through hole that are respectively equipped with and are connected.
By adopting above-mentioned technical scheme, this air inlet pressure sensor for automobile by being provided with thermistor and IC chip in sensor outer housing, thus the defect that usual pressure sensor chip exists temperature drift can be overcome, make its admission pressure more stable, when air inlet cylindrical shell to be inserted in inlet manifold after zoarium, thus the air pressure in inlet manifold enters into air inlet cylindrical shell, successively by fixed mount through hole, lid through hole and directly act on IC chip, then convert signal voltage to by wiring board and the size of distributive value can well be controlled.
Further setting of the present utility model: the position of the upper opening hollow cavity clamping of described air inlet cylindrical shell and sensor outer housing is by twice sealant pouring and sealing process, and the material of its embedding is one-component epoxy resin.
By adopting above-mentioned technical scheme, thus the junction of air inlet cylindrical shell and sensor outer housing can be made to have the effect of double seal, the phenomenon that air inlet pressure sensor can be avoided to leak air, is conducive to the usability improving this air inlet pressure sensor further.
Further setting of the present utility model: described resistance fixed mount is provided with the buckling groove communicated with fixed mount through hole, described undertaking is covered the one end be connected with resistance fixed mount and is connected in described buckling groove, the described undertaking lid other end is provided with groove, and described IC chip is connected to the one end of accepting lid and is connected in described groove.
By adopting above-mentioned technical scheme, thus whole air inlet pressure sensor inner structure can be made more compact, being conducive to making to enter the more stable, smooth and easy of the gas flowing in air inlet cylindrical shell simultaneously.
Further setting of the present utility model: the outer wall of described air inlet cylindrical shell is provided with annular groove, is arranged with O RunddichtringO in described annular groove.
By adopting above-mentioned technical scheme, thus be inserted in inlet manifold after zoarium at air inlet cylindrical shell, 0 RunddichtringO can increase the sealing between air inlet cylindrical shell and inlet manifold, to improve the sealing of whole sensor further.
Further setting of the present utility model: the outer wall that described sensor outer housing is positioned at side slot position is provided with some strengthening rib strips.
By adopting above-mentioned technical scheme, the setting of strengthening rib strip can increase the intensity of sensor outer housing, can play the effect of protection side slot simultaneously.
The beneficial effects of the utility model are: air inlet pressure sensor for automobile of the present utility model by being provided with thermistor and IC chip in sensor outer housing, thus the defect that usual pressure sensor chip exists temperature drift can be overcome, make admission pressure more stable, be conducive to improving its usability.
Accompanying drawing explanation
Fig. 1 is the structural representation of the air inlet pressure sensor for automobile of the utility model embodiment.
Embodiment
In order to make content of the present utility model more clear, below in conjunction with embodiment, the utility model is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the air inlet pressure sensor for automobile of the utility model embodiment, comprise sensor outer housing 1, air inlet cylindrical shell 2, wiring board 3, wire 4, its sensor outer housing 1 is respectively equipped with opening hollow cavity 11 and side slot 12, further, connection terminal 5 and plug 6 is respectively arranged with in upper opening hollow cavity 11 and side slot 12, air inlet cylindrical shell 2 one end is connected in the upper opening hollow cavity 11 of sensor outer housing 1, wiring board 3 to be located in air inlet cylindrical shell 2 and to be connected to connection terminal 5 by wire 4, further, thermistor 7 is also provided with in air inlet cylindrical shell 2, resistance fixed mount 8, IC chip 9 and undertaking lid 10, resistance fixed mount 8 tight clamping fit is in air inlet cylindrical shell 2 inwall, thermistor 7 is installed on resistance fixed mount 8, wiring board 3 is close in IC chip 9 one end, the other end is connected to accepts lid 10, and the other end accepting lid 10 is connected to resistance fixed mount 8, further, resistance fixed mount 8 with undertaking lid 10 are respectively equipped with the fixed mount through hole 81 and lid through hole 101 that are connected, this air inlet pressure sensor for automobile by being provided with thermistor 7 and IC chip 9 in sensor outer housing 1, thus the defect that usual pressure sensor chip exists temperature drift can be overcome, make its admission pressure more stable, when air inlet cylindrical shell 2 to be inserted in inlet manifold after zoarium, thus the air pressure in inlet manifold enters into air inlet cylindrical shell 2, passing through fixed mount through hole 81 successively, lid through hole 101 and directly act on IC chip 9, then convert signal voltage to by wiring board 3 and the size of distributive value can well be controlled.
In the present embodiment, the position of upper opening hollow cavity 11 clamping of air inlet cylindrical shell 2 and sensor outer housing 1 is by twice sealant pouring and sealing process, the material of its embedding is one-component epoxy resin, thus the junction of air inlet cylindrical shell 2 and sensor outer housing 1 can be made to have the effect of double seal, the phenomenon that air inlet pressure sensor can be avoided to leak air, is conducive to the usability improving this air inlet pressure sensor further.
In the present embodiment, resistance fixed mount 8 is provided with the buckling groove 82 communicated with fixed mount through hole 81, one end that its undertaking lid 10 is connected with resistance fixed mount 8 is connected in buckling groove 82, accept lid 10 other end and be provided with groove 102, IC chip 9 is connected to the one end of accepting lid 10 and is connected in groove 102, thus whole air inlet pressure sensor inner structure can be made more compact, be conducive to making to enter the more stable, smooth and easy of the gas flowing in air inlet cylindrical shell 2 simultaneously.
In the present embodiment, the outer wall of air inlet cylindrical shell 2 is provided with annular groove 21, O RunddichtringO 13 is arranged with in this annular groove 21, thus to be inserted in inlet manifold after zoarium at air inlet cylindrical shell 2, O RunddichtringO 13 can increase the sealing between air inlet cylindrical shell 2 and inlet manifold, to improve the sealing of whole sensor further.
In the present embodiment, the outer wall that sensor outer housing 1 is positioned at side slot 12 position is provided with some strengthening rib strips 14, and the setting of strengthening rib strip 14 can increase the intensity of sensor outer housing 1, can play the effect of protection side slot 12 simultaneously.
Claims (5)
1. an air inlet pressure sensor for automobile, comprise sensor outer housing, air inlet cylindrical shell, wiring board, wire, described sensor outer housing is respectively equipped with opening hollow cavity and side slot, connection terminal and plug is respectively arranged with in described upper opening hollow cavity and side slot, described air inlet cylindrical shell one end is connected in the upper opening hollow cavity of sensor outer housing, described wiring board to be located in air inlet cylindrical shell and to be connected to connection terminal by wire, it is characterized in that: in described air inlet cylindrical shell, be also provided with thermistor, resistance fixed mount, IC chip and undertaking lid, described resistance fixed mount tight clamping fit is in air inlet cylinder inboard wall, described thermistor is installed on resistance fixed mount, wiring board is close in described IC chip one end, the other end is connected to accepts lid, the described other end accepting lid is connected to resistance fixed mount, described resistance fixed mount covers with undertaking the fixed mount through hole and lid through hole that are respectively equipped with and are connected.
2. air inlet pressure sensor for automobile according to claim 1, is characterized in that: the position of the upper opening hollow cavity clamping of described air inlet cylindrical shell and sensor outer housing is by twice sealant pouring and sealing process, and the material of its embedding is one-component epoxy resin.
3. air inlet pressure sensor for automobile according to claim 1, it is characterized in that: described resistance fixed mount is provided with the buckling groove communicated with fixed mount through hole, described undertaking is covered the one end be connected with resistance fixed mount and is connected in described buckling groove, the described undertaking lid other end is provided with groove, and described IC chip is connected to the one end of accepting lid and is connected in described groove.
4. air inlet pressure sensor for automobile according to claim 1, is characterized in that: the outer wall of described air inlet cylindrical shell is provided with annular groove, is arranged with O RunddichtringO in described annular groove.
5. air inlet pressure sensor for automobile according to claim 1, is characterized in that: the outer wall that described sensor outer housing is positioned at side slot position is provided with some strengthening rib strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203970.1U CN204612854U (en) | 2015-04-07 | 2015-04-07 | Air inlet pressure sensor for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203970.1U CN204612854U (en) | 2015-04-07 | 2015-04-07 | Air inlet pressure sensor for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204612854U true CN204612854U (en) | 2015-09-02 |
Family
ID=53965405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520203970.1U Expired - Fee Related CN204612854U (en) | 2015-04-07 | 2015-04-07 | Air inlet pressure sensor for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204612854U (en) |
-
2015
- 2015-04-07 CN CN201520203970.1U patent/CN204612854U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325200 East Road, Ruian Economic Development Zone, Zhejiang, No. 901 Patentee after: Zhejiang hangbo automobile sensor Co. Ltd. Address before: 325200 East Road, Ruian Economic Development Zone, Zhejiang, No. 901 Patentee before: Aborn Auto Parts MFG. (China) Co., Ltd. |
|
| 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: 20150902 Termination date: 20180407 |