CN208282860U - A kind of waterproof admission pressure temperature sensor and its applied engine - Google Patents
A kind of waterproof admission pressure temperature sensor and its applied engine Download PDFInfo
- Publication number
- CN208282860U CN208282860U CN201820633081.2U CN201820633081U CN208282860U CN 208282860 U CN208282860 U CN 208282860U CN 201820633081 U CN201820633081 U CN 201820633081U CN 208282860 U CN208282860 U CN 208282860U
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- China
- Prior art keywords
- housing assembly
- temperature sensor
- admission pressure
- waterproof
- pressure temperature
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Abstract
The utility model provides a kind of waterproof admission pressure temperature sensing and its applied engine, it is the admission pressure temperature sensor with anti-ponding design structure, including housing assembly, gland, pcb board, sealing ring, resistance, housing assembly air inlet, funnel structure, pressure-sensitive chip, inserted sheet assembly, heat-shrink tube, the design of housing assembly inner cavity has funnel structure, the design of the funnel structure, it can guarantee that steam or condensed water are discharged in time, heat-shrink tube is coated on the inserted sheet assembly, prevent steam from entering interiors of products, finally realize ideal product waterproof effect, improve the stability of product, extend product service life.
Description
Technical field
The utility model relates to automobile sensor, especially a kind of admission pressure suitable for automobile engine admission line
Temperature sensor.
Background technique
Currently, automobile-used admission pressure temperature sensor, is typically mounted at motor intake manifold, including housing assembly, pressure
Lid, pcb board, sealing ring, resistance, pressure-sensitive chip, effect are to provide engine charge pressure for vehicle electronic control unit (ECU)
Power and temperature signal, measure charge flow rate indirectly, to guarantee that engine obtains optimal air-fuel ratio, so admission pressure temperature passes
The measurement result of sensor will directly affect the fuel efficiency of engine.
It because admission pressure temperature sensor working environment is harsh, is chronically in water vapour environment, steam cooling accumulation, when
When external environment is lower, admission pressure temperature sensor gas port and chip pressure sensing hole ponding is easily caused to freeze, sensor can not
Sensed pressure and temperature lead to product initial failure.
Therefore, general automobile-used admission pressure temperature sensor is not due to having waterproof action, so it easily causes product
Failure, impact resistance are poor.
In actual vehicle traveling, due to the defect of the above-mentioned prior art, reason is not achieved in air input of engine by air and amount of fuel
The mixed proportion thought causes vehicle to accelerate powerless, and vehicle body shake, oil consumption increases, and easily causes customer complaint.
Summary of the invention
In view of the shortcomings of the prior art, the utility model provides a kind of waterproof air inlet pressure-temperature sensors.
The technical solution adopted in the utility model is a kind of admission pressure temperature sensor with waterproofing design structure, packet
Include housing assembly, gland, pcb board, sealing ring, resistance, housing assembly air inlet, funnel structure, pressure-sensitive chip, inserted sheet assembly,
Heat-shrink tube；
The sealing ring is mounted on housing assembly；
The inserted sheet assembly is cooperated by injection molding and housing assembly；
The gland is assemblied on the housing assembly, gland and the housing assembly assembly method be not limited to it is Nian Jie,
Riveting cooperation；
The resistance and the pressure-sensitive chip are weldingly fixed on pcb board；
The pcb board and the housing assembly welding assembly cooperate；
Preferably, the heat-shrink tube is coated on the inserted sheet assembly, this carries out second to be molded for the first time after cladding
Secondary injection molding is molded on the housing assembly by the inserted sheet assembly after heat-shrink tube cladding, injection molding can effectively ensure that twice
Air-tightness at inserted sheet assembly, prevents steam from entering, and reaches ideal waterproof effect；
Preferably, the inserted sheet assembly is all moulded on the housing assembly by heat-shrink tube covered section, i.e., described
Heat-shrink tube is injection molding material all standing；
Preferably, the housing assembly inner cavity design has the funnel structure, and the funnel structure is total in the shell
At intracavity space design slope or the radian of certain subtended angle, inner cavity drainage effect cannot be reached when the subtended angle is too small, is not achieved
Ideal waterproof purpose, influences housing assembly mechanical strength when subtended angle is larger, verify by test data analyzer and practical application,
The subtended angle (included angle A as shown in Figure 1) design is perfect condition between 13 ° -25 °.
The present invention also provides a kind of engines, including engine body and the admission pressure being installed on the engine
Temperature sensor, the admission pressure temperature sensor are specially admission pressure temperature sensor described in any of the above embodiments.
The beneficial effects of the utility model are: the product funnel structure designs, it is ensured that steam or condensed water are arranged in time
Out, prevent steam from forming ponding in product cavity, heat-shrink tube cladding plug quadric injection mould design can prevent steam from entering product
Ideal product waterproof effect is finally realized in inside, improves the stability of product, extends product service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the admission pressure temperature sensor of the utility model；
Fig. 2 is the structural schematic diagram of inserted sheet assembly；
Fig. 3 is the main view of the utility model product removal gland structure；
Wherein 1. housing assemblies, 2. glands, 3.PCB plate, 4. sealing rings, 5. resistance, 6. housing assembly air inlets, 7.
Funnel structure, 8. pressure-sensitive chips, 9. inserted sheet assemblies, 10. heat-shrink tubes.
Specific embodiment
As shown in Figure 1, a kind of waterproof admission pressure temperature sensor, including housing assembly 1, gland 2, pcb board 3, sealing
4, resistance 5, housing assembly air inlet 6, funnel structure 7, pressure-sensitive chip 8, inserted sheet assembly 9, heat-shrink tube 10 are enclosed, sealing ring 5 is installed
On housing assembly 1, the cooperation Nian Jie with housing assembly 1 of gland 2, resistance 5 and pressure-sensitive chip 8 are weldingly fixed on pcb board 3, PCB
Plate 3 and 1 welding assembly of housing assembly, sealing ring 4 are mounted on housing assembly 1, and it is total that the heat-shrink tube 10 is coated on the inserted sheet
On 9, this is molded into the inserted sheet assembly 9 after being coated by the heat-shrink tube 10 on the housing assembly 1 to be molded for the first time,
The inserted sheet assembly 9 is all moulded on the housing assembly 1 by 10 covered section of heat-shrink tube, i.e., the described heat-shrink tube 10 is infused
Moulding material all standing, this is molded for second, and injection molding can effectively ensure that the air-tightness at inserted sheet assembly twice, prevent steam into
Enter, reaches ideal waterproof effect.
1 inner cavity of the housing assembly design has the funnel structure 7, and the funnel structure 7 is in the housing assembly 1
Intracavity space designs slope or the radian of certain subtended angle, which designs between 13 ° -25 °.
When air intake manifold of automotive engine has air-flow containing steam to pass through, air-flow enters product by housing assembly air inlet 7
Inside cavity, resistance 5 perceive intake air temperature, and pressure-sensitive chip 8 perceives admission pressure, at this point, when stemming moisture accumulation excessively forms ponding
When, ponding is discharged in funnel structure 8 in time, and for inserted sheet assembly 9 through 10 coating and injection moulding of heat-shrink tube, leakproofness can adapt to engine week
The adverse circumstances such as high temperature and pressure, steam are enclosed, prevent the steam in ambient enviroment from entering interiors of products, reach waterproof purpose.
Claims (5)
1. a kind of waterproof admission pressure temperature sensor, including housing assembly, gland, pcb board, resistance, pressure-sensitive chip, insert
Piece assembly, the gland are assemblied on the housing assembly, and the inserted sheet assembly is moulded on housing assembly, the resistance and institute
It states pressure-sensitive chip to be weldingly fixed on the pcb board, it is characterised in that: the housing assembly inner cavity design has funnel structure, institute
Stating funnel structure is to design slope or the radian of certain subtended angle in the intracavity space of the housing assembly.
2. a kind of waterproof admission pressure temperature sensor according to claim 1, it is characterised in that on the inserted sheet assembly
There is the heat-shrink tube of cladding.
3. a kind of waterproof admission pressure temperature sensor according to claim 1, it is characterised in that the funnel structure leakage
Angle with horizontal plane design in slope is between 13 ° -25 ° in struggling against.
4. a kind of waterproof admission pressure temperature sensor according to claim 1, it is characterised in that the inserted sheet assembly quilt
Heat-shrink tube covered section is all moulded on the housing assembly.
5. a kind of engine, including engine body and the admission pressure temperature sensor being installed on the engine,
It is characterized in that, the admission pressure temperature sensor is specially the described in any item waterproof admission pressure temperature of Claims 1-4
Sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820633081.2U CN208282860U (en) | 2018-04-28 | 2018-04-28 | A kind of waterproof admission pressure temperature sensor and its applied engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820633081.2U CN208282860U (en) | 2018-04-28 | 2018-04-28 | A kind of waterproof admission pressure temperature sensor and its applied engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208282860U true CN208282860U (en) | 2018-12-25 |
Family
ID=64752570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820633081.2U Active CN208282860U (en) | 2018-04-28 | 2018-04-28 | A kind of waterproof admission pressure temperature sensor and its applied engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208282860U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444282A (en) * | 2019-08-29 | 2021-03-05 | 浙江三花智能控制股份有限公司 | Sensor, heat exchanger and heat exchange system |
-
2018
- 2018-04-28 CN CN201820633081.2U patent/CN208282860U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444282A (en) * | 2019-08-29 | 2021-03-05 | 浙江三花智能控制股份有限公司 | Sensor, heat exchanger and heat exchange system |
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