CN202562634U - Intake-temperature pressure transducer - Google Patents
Intake-temperature pressure transducer Download PDFInfo
- Publication number
- CN202562634U CN202562634U CN2012201500237U CN201220150023U CN202562634U CN 202562634 U CN202562634 U CN 202562634U CN 2012201500237 U CN2012201500237 U CN 2012201500237U CN 201220150023 U CN201220150023 U CN 201220150023U CN 202562634 U CN202562634 U CN 202562634U
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- CN
- China
- Prior art keywords
- pressure transducer
- housing
- temperature pressure
- circuit board
- cover plate
- 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 - Lifetime
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model provides an intake-temperature pressure transducer, comprising a housing, a cover plate, a thermistor, a pressure transducer, a circuit board and an O-shaped sealing ring. The housing is formed by an insert sheet and a plastic housing which are integrated into one piece by means of die injection. The part where the housing and the cover plate are combined is provided with a square groove sealed by coating epoxy resin. The root of the insert sheet inside a cavity in the housing is provided with a concave groove, in which epoxy resin is coated for the sealing purpose. The intake-temperature pressure transducer of the utility model adopts the structure of the plastic housing, overcoming the defects of easy damage, poor corrosion-resistant performance and high cost of conventional pressure transducers. In addition, also overcome is the defect of poor vibration resistance ability of thermistors on conventional pressure transducers. The intake-temperature pressure transducer with the plastic housing based on a petrol engine realizes reliable product function and well guarantees the performance and the quality of products.
Description
Technical field
The utility model relates to the pressure transducer technical field, specifically is a kind of intake air temperature pressure transducer.
Background technology
As critical piece in the electro jet car oil spout electronic control system: the intake air temperature pressure transducer; Its function is the electric signal that intake air temperature and pressure are provided to miniature control system (ECU); The air inflow of miniature control system (ECU) through the program calculation engine is again according to the corresponding distributive value of calculated signals of other sensor.So the result precision of air inlet pressure sensor and temperature sensor test directly influences the operating mode of engine.
At present, the overall package of the pressure transducer on the automotive gasoline engine generally adopts the mode of metal shell to encapsulate, and shortcoming is the outward appearance easy damaged, corrosion-resistant, and cost is higher.And the thermistor of conventional pressure transducer just is welded on the inserted sheet, does not have other to fix, and its weak point is that vibration resistance is indifferent.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned weak point, and a kind of intake air temperature pressure transducer is provided, and it adopts plastic casing spare to come the alternative metals part, to solve conventional pressure transducer outward appearance easy damaged, corrosion-resistant, the shortcoming that cost is higher.
A kind of intake air temperature pressure transducer; Comprise shell, cover plate, thermistor, pressure transducer, circuit board, O RunddichtringO; Shell is shaped to one by inserted sheet and plastic casing through the mold injection mode; The junction of shell and cover plate is provided with and is coated with the square groove that epoxy resin seals, and the inner inserted sheet root of shell cavity is provided with Baltimore groove, scribbles epoxy resin in the Baltimore groove and seals.
Aforesaid intake air temperature pressure transducer; The upper end of shell offers the opening that is used for fixing circuit board; Thermistor and pressure transducer respectively with circuit board welding, circuit board is fixed in said opening part, the upper fixed of said circuit board is used for the cover plate of potted circuit plate.
Aforesaid intake air temperature pressure transducer, the root of thermistor lead-in wire scribbles epoxy resin and fixes.
The utility model intake air temperature pressure transducer adopts the structure of plastic casing to overcome conventional pressure transducer outward appearance easy damaged, corrosion-resistant, the shortcoming that cost is higher; And overcome the indifferent shortcoming of thermistor vibration resistance on the conventional pressure transducer.Thisly can guarantee that based on petrolic plastic casing intake air temperature pressure transducer product function reliably realizes, sound assurance performance of products and quality.
Description of drawings
Fig. 1 is the side sectional view of the utility model intake air temperature pressure transducer;
Fig. 2 is the front view of the utility model intake air temperature pressure transducer;
Fig. 3 is the vertical view of the utility model intake air temperature pressure transducer.
Among the figure: 1-shell, 2-cover plate, 3-thermistor, 4-pressure transducer, 5-circuit board, 6-O RunddichtringO, 7-inserted sheet, 8-Baltimore groove, 9-square groove, 10-plastic casing.
Embodiment
To combine the accompanying drawing in the utility model below, the technical scheme in the utility model will be carried out clear, intactly description.
Please refer to Fig. 1-3, the utility model intake air temperature pressure transducer comprises shell 1, cover plate 2, thermistor 3, pressure transducer 4, circuit board 5, O RunddichtringO 6, and wherein shell 1 is shaped to one by inserted sheet 7 and plastic casing 10 through the mold injection mode.The upper end of shell 1 offers the opening that is used for fixing circuit board 5, thermistor 3 and pressure transducer 4 respectively with circuit board 5 welding, circuit board 5 is fixed in said opening part, the upper fixed of said circuit board 5 is used for the cover plate 2 of potted circuit plate 5.
The junction of shell 1 and cover plate 2 is provided with and is coated with the square groove 9 that epoxy resin seals; When the assembling of shell sub-unit and cover plate, in square groove 9, coat epoxy resin after, again cover plate 2 is snapped in the square groove 9; With the epoxy resin adhesive liquid oven dry, can prevent gas leakage between shell 1 and the cover plate 2.
Inner inserted sheet 7 roots of shell 1 cavity are provided with Baltimore groove 8, scribble epoxy resin in the Baltimore groove 8 and seal, and can prevent that sensor extraneous air and steam from getting into sensor internal from the junction of inserted sheet 7 and plastic casing 10.Preferable, the root of thermistor 3 lead-in wires scribbles epoxy resin and fixes, and the root of conventional sensor thermistor does not have other thing protections except scolding tin; So vibration resistance is indifferent under long vibration environment; The thermistor root comes off easily, and in the utility model, the root of thermistor 3 has been coated with epoxy resin; Largely alleviate the stressed of thermistor 3 roots, strengthened its vibration resistance ability.
The above; Be merely the embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any technician who belongs to the present technique field is in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection domain of the utility model.Therefore, the protection domain of the utility model should be as the criterion with the protection domain of claim.
Claims (3)
1. intake air temperature pressure transducer; Comprise shell (1), cover plate (2), thermistor (3), pressure transducer (4), circuit board (5), O RunddichtringO (6); It is characterized in that: shell (1) is shaped to one by inserted sheet (7) and plastic casing (10) through the mold injection mode; The junction of shell (1) and cover plate (2) is provided with the square groove (9) that is coated with epoxy resin and seals; Inner inserted sheet (7) root of shell (1) cavity is provided with Baltimore groove (8), scribbles epoxy resin in the Baltimore groove (8) and seals.
2. intake air temperature pressure transducer as claimed in claim 1; It is characterized in that: the upper end of shell (1) offers the opening that is used for fixing circuit board (5); Thermistor (3) and pressure transducer (4) weld with circuit board (5) respectively; Circuit board (5) is fixed in said opening part, and the upper fixed of said circuit board (5) is used for the cover plate (2) of potted circuit plate (5).
3. intake air temperature pressure transducer as claimed in claim 1 is characterized in that: the root of thermistor (3) lead-in wire scribbles epoxy resin and fixes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201500237U CN202562634U (en) | 2012-04-11 | 2012-04-11 | Intake-temperature pressure transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201500237U CN202562634U (en) | 2012-04-11 | 2012-04-11 | Intake-temperature pressure transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202562634U true CN202562634U (en) | 2012-11-28 |
Family
ID=47212279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201500237U Expired - Lifetime CN202562634U (en) | 2012-04-11 | 2012-04-11 | Intake-temperature pressure transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202562634U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389136A (en) * | 2017-08-28 | 2017-11-24 | 浙江沃得尔科技股份有限公司 | A kind of inlet manifold sensor construction |
| CN110017910A (en) * | 2019-04-28 | 2019-07-16 | 上海岗崎控制仪表有限公司 | A kind of multi-shell curing entity temperature sensor |
-
2012
- 2012-04-11 CN CN2012201500237U patent/CN202562634U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389136A (en) * | 2017-08-28 | 2017-11-24 | 浙江沃得尔科技股份有限公司 | A kind of inlet manifold sensor construction |
| CN110017910A (en) * | 2019-04-28 | 2019-07-16 | 上海岗崎控制仪表有限公司 | A kind of multi-shell curing entity temperature sensor |
| CN110017910B (en) * | 2019-04-28 | 2024-05-10 | 上海岗崎控制仪表有限公司 | Layered curing entity temperature sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 430056 9MC Road, Wuhan economic and Technological Development Zone, Wuhan, Hubei, No. four, 16 Northwest Lake Road Patentee after: Wuhan mobile automotive electronic and electrical appliance Limited by Share Ltd Address before: 430000, Hubei, Wuhan Economic Development Zone, after the official Lake Road, east god District North 6 Building Patentee before: Wuhan SD Automobile Electronic Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121128 |