CN206523259U - Pressure sensor used for automobile air conditioning - Google Patents
Pressure sensor used for automobile air conditioning Download PDFInfo
- Publication number
- CN206523259U CN206523259U CN201720115142.1U CN201720115142U CN206523259U CN 206523259 U CN206523259 U CN 206523259U CN 201720115142 U CN201720115142 U CN 201720115142U CN 206523259 U CN206523259 U CN 206523259U
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- CN
- China
- Prior art keywords
- pressure
- dividing plate
- sensor housing
- cavity volume
- 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.)
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Abstract
The utility model is related to a kind of pressure sensor used for automobile air conditioning, cavity volume is offered on sensor housing and for transmitting the passage that pressure is used, the opposite side size of sensor housing is identical, pressure resistance type ceramic sensor element core and dividing plate are installed in cavity volume, the bottom surface of dividing plate is fitted with the top surface of pressure resistance type ceramic sensor element core, and the second cavity volume is formed between dividing plate and plastic casing；It is provided with plastic casing in lead terminal, the second cavity volume and is provided with PCB flexible boards, the afterbody of lead terminal is connected with PCB flexible boards；The upper end of dividing plate is provided with pressing plate, IC conditioning chips are installed between the center position and PCB flexible boards of pressing plate, due to using ceramic pressure drag integral type, resistance to medium, compression resistance strength character is high, be not in chip puncture, obscission, due to sensor housing opposite side size, reduce client and produce the Line tool turnover, while output voltage signal, control point is stable, accurate, efficient, and energy-conservation, emission reduction extend compressor service life.
Description
Technical field
The utility model is related to sensor technical field, especially a kind of pressure sensor used for automobile air conditioning.
Background technology
Pressure sensor uses microelectronics, and integrated chip technology gathers air conditioner compressor system pressure, then exported in real time
To ECU, it is used for variable compressor pressure detecting, realizes the real-time control of requirements at the higher level, adds after specified refrigerant, system
Can normal work.
When user opens air conditioning function knob, air-conditioning, which enters, operates at full capacity state, when reaching setting for selected gear
After definite value, the compression ratio of system meeting adjust automatically compressor is realized and is not shut down the stable air-conditioning of continuous output, compressor electromagnetism
Clutch is entirely acted only once.Compared with traditional pressure switch control system, fixed displacement electromagnetic clutch for compressor is needed
The shortcoming of frequent starting is wanted, and frequently startup can increase the compression shock load of engine, be unfavorable for energy-conservation, emission reduction, cause
Electromagnetic clutch weares and teares, service life reduction.
Existing air conditioning for automobiles pressure sensor is to use silicon piezoresistance type chip simultaneously, with glued with ceramic plectane, using
In automotive air-conditioning system.Due to pressure measxurement chip with ceramic plectane using glued mode, easily because of adhesive intensity and silicon pressure drag
Formula chip intensity limitation itself, can cause chip to puncture, come off；Existing pressure sensor compression resistance low intensity, and needing simultaneously
The instrument to use on a production line is more, reduces operating efficiency.
Utility model content
The technical problems to be solved in the utility model is：There is provided a kind of pressure-resistant force intensity for the deficiency for overcoming in the prior art
Performance is high, will not assembly chip puncture, obscission, due to using opposite side size, reduce client and produce the Line tool turnover
Pressure sensor used for automobile air conditioning.
The utility model solves the technical scheme that its technical problem used：A kind of pressure sensor used for automobile air conditioning,
Cavity volume is offered on plastic casing with sensor housing, on the sensor housing, described sensor housing
With for transmitting the passage that pressure is used, the opposite side size of sensor housing is identical, and cross sectional shape is provided with cavity volume in " n "
The pressure resistance type ceramic sensor element core and cross sectional shape of shape are in the dividing plate of horizontal I-shaped, and bottom surface and the pressure resistance type ceramics of dividing plate are passed
The top surface laminating of sensor core, forms the second cavity volume between dividing plate and plastic casing；
Be provided with lead terminal, the second cavity volume in the plastic casing and be provided with PCB flexible boards, the afterbody of lead terminal with
PCB flexible boards are connected；
The upper end of the dividing plate is provided with pressing plate, and IC conditioning cores are provided between the center position and PCB flexible boards of pressing plate
Piece.
Further, VOUT+ suture introducing needles, V- suture introducing needles, VOUT- leads are sequentially provided with described dividing plate from left to right
Pin and V+ suture introducing needles simultaneously pass through pressing plate, and the VOUT+ suture introducing needles and V+ suture introducing needles are welded to connect with PCB flexible boards, and V- draws
Line pin and VOUT- suture introducing needles are welded to connect with IC conditioning chips.
Further, described lead terminal includes ground terminal, lead-out terminal and power supply terminal.
Further, the junction of the inner concave of described pressure resistance type ceramic sensor element core and sensor housing is provided with O shapes
Sealing ring.
Further, the bottom of described sensor housing is provided with external thread part, external thread part and sensor housing
The second O-ring seals are equipped between transverse end surface.
The beneficial effects of the utility model are：The utility model is because using ceramic pressure drag integral type, resistance to medium is pressure-resistant
Force intensity performance is high, be not in chip puncture, obscission, due to sensor housing opposite side size, reduce client's production line
Instrument turnover, while output voltage signal, control point is stable, accurate, efficient, energy-conservation, emission reduction, extension compressor use the longevity
Life.
Brief description of the drawings
The utility model is further illustrated with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is front view of the present utility model；
Fig. 2 is right view of the present utility model；
Fig. 3 is sectional view of the present utility model；
Fig. 4 is circuit diagram of the present utility model；
Fig. 5 is output characteristics figure of the present utility model；
Fig. 6 is the partial enlarged drawing at the utility model A.
1. sensor housing in figure, 2. plastic casings, 3. cavity volumes, 4. pressure resistance type ceramic sensor element cores, 5. dividing plates, 6. second
Cavity volume, 7. lead terminals, 8.PCB flexible boards, 9. pressing plates, 10.IC conditioning chips, 11.O shape sealing rings, 12.VOUT+ suture introducing needles,
13.V- suture introducing needles, 14.VOUT- suture introducing needles, 15.V+ suture introducing needles, 16. passages, 17. second O-ring seals, 71. earth terminals
Son, 72. lead-out terminals, 73. power supply terminals.
Embodiment
The utility model is further described presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram only to show
Meaning mode illustrates basic structure of the present utility model, therefore it only shows the composition relevant with the utility model.
A kind of pressure sensor used for automobile air conditioning as shown in Fig. 1~5, with sensor housing 1, installed in the sensing
Cavity volume 3 is offered on plastic casing 2 on device housing 1, sensor housing 1 and for transmitting the passage 16 that pressure is used, led to
Stomata 16 is used for transmitting pressure, and the opposite side size of sensor housing 1 is identical, and cross sectional shape is provided with cavity volume 3 in " n " shape
Pressure resistance type ceramic sensor element core 4 and cross sectional shape be in horizontal I-shaped dividing plate 5, bottom surface and the pressure resistance type ceramics of dividing plate 5
The top surface laminating of sensor core 4, forms the second cavity volume 6 between dividing plate 5 and plastic casing 2；
Be provided with plastic casing 2 in lead terminal 7, the second cavity volume 6 and be provided with PCB flexible boards 8, the afterbody of lead terminal 7 with
PCB flexible boards 8 are connected；
The upper end of dividing plate 5 is provided with pressing plate 9, and IC conditioning cores are provided between the center position and PCB flexible boards 8 of pressing plate 9
Piece 10, pressing plate 9 prevents PCB flexible boards 8 from being contacted with pressure resistance type ceramic sensor element core 4, and build-up of pressure transmission produces deviation.
VOUT+ suture introducing needles 12, V- suture introducing needles 13, VOUT- suture introducing needles 14 and V+ are sequentially provided with dividing plate 5 from left to right
Suture introducing needle 15 simultaneously passes through pressing plate 9, and the VOUT+ suture introducing needles 12 and V+ suture introducing needles 15 are welded to connect with PCB flexible boards 8, and V- draws
Line pin 13 and VOUT- suture introducing needles 14 are welded to connect with IC conditioning chips 10, are welded to connect using scolding tin.
Lead terminal 7 includes ground terminal 71, lead-out terminal 72 and power supply terminal 73.
The inner concave of pressure resistance type ceramic sensor element core 4 is provided with O-ring seals 11 with the junction of sensor housing 1.
The bottom of sensor housing 1 is provided with external thread part, ring between external thread part and the transverse end surface of sensor housing 1
Provided with the second O-ring seals 17, the second O-ring seals 17 realize the pressure seal of the connection procedure of sensor housing 1.
It is specific effectively to prevent IC conditioning chips 10 from occurring using pressure resistance type ceramic sensor element core 4 and IC conditioning chips 10
Puncture, come off problem, the ground terminal 71, lead-out terminal 72 and power supply terminal 73 on sensor are connected with ECU, wherein defeated
Go out terminal 72 and power supply terminal 73 is connected with A/D, digital quantity is transformed into the device of simulation by A/D, while sensor shell
The contrast size that body 1 is used is set, and is reduced client and is produced the Line tool turnover, improves operating efficiency.
Above-mentioned embodiment is only to illustrate technical concepts and features of the present utility model, and its object is to allow be familiar with this skill
The personage of art can understand content of the present utility model and be carried out, and protection model of the present utility model can not be limited with this
Enclose, all equivalent change or modifications made according to the utility model Spirit Essence should all cover in protection model of the present utility model
In enclosing.
Claims (5)
1. a kind of pressure sensor used for automobile air conditioning, with sensor housing (1), on the sensor housing (1)
Plastic casing (2), it is characterised in that：Offer cavity volume (3) on described sensor housing (1) and be used for transmitting pressure
Passage (16), the opposite side size of sensor housing (1) is identical, and the pressure resistance type that cross sectional shape is in " n " shape is provided with cavity volume (3)
Ceramic sensor element core (4) and cross sectional shape are in the dividing plate (5) of horizontal I-shaped, and bottom surface and the pressure resistance type ceramics of dividing plate (5) are passed
The top surface laminating of sensor core (4), forms the second cavity volume (6) between dividing plate (5) and plastic casing (2)；
It is provided with the plastic casing (2) in lead terminal (7), the second cavity volume (6) and is provided with PCB flexible boards (8), lead terminal
(7) afterbody is connected with PCB flexible boards (8)；
The upper end of the dividing plate (5) is provided with pressing plate (9), is provided between the center position and PCB flexible boards (8) of pressing plate (9)
IC conditioning chips (10).
2. pressure sensor used for automobile air conditioning according to claim 1, it is characterised in that：From a left side on described dividing plate (5)
Turn right and be sequentially provided with VOUT+ suture introducing needles (12), V- suture introducing needles (13), VOUT- suture introducing needles (14) and V+ suture introducing needles (15) and wear
Pressing plate (9) is crossed, the VOUT+ suture introducing needles (12) and V+ suture introducing needles (15) are welded to connect with PCB flexible boards (8), V- suture introducing needles
(13) it is welded to connect with VOUT- suture introducing needles (14) with IC conditioning chips (10).
3. pressure sensor used for automobile air conditioning according to claim 1, it is characterised in that：Described lead terminal (7) bag
Ground terminal (71), lead-out terminal (72) and power supply terminal (73) are included.
4. pressure sensor used for automobile air conditioning according to claim 1, it is characterised in that：Described pressure resistance type ceramic sensor
The inner concave of device core (4) is provided with O-ring seals (11) with the junction of sensor housing (1).
5. pressure sensor used for automobile air conditioning according to claim 1, it is characterised in that：Described sensor housing (1)
Bottom be provided with external thread part, be equipped with the second O-ring seals between external thread part and sensor housing (1) transverse end surface
(17)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720115142.1U CN206523259U (en) | 2017-02-08 | 2017-02-08 | Pressure sensor used for automobile air conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720115142.1U CN206523259U (en) | 2017-02-08 | 2017-02-08 | Pressure sensor used for automobile air conditioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206523259U true CN206523259U (en) | 2017-09-26 |
Family
ID=59890376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720115142.1U Expired - Fee Related CN206523259U (en) | 2017-02-08 | 2017-02-08 | Pressure sensor used for automobile air conditioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206523259U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982005A (en) * | 2018-08-03 | 2018-12-11 | 柴德维 | A kind of pressure alarm of new automobile |
| CN109141713A (en) * | 2018-08-03 | 2019-01-04 | 柴德维 | A kind of pressure alarm suitable for automobile |
| CN110146217A (en) * | 2019-05-28 | 2019-08-20 | 上汽通用五菱汽车股份有限公司 | A kind of automotive air-conditioning system pressure-detecting device and method |
| CN111442873A (en) * | 2019-01-17 | 2020-07-24 | 长城汽车股份有限公司 | Air conditioner pressure detection system and detection method for vehicle production line |
-
2017
- 2017-02-08 CN CN201720115142.1U patent/CN206523259U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982005A (en) * | 2018-08-03 | 2018-12-11 | 柴德维 | A kind of pressure alarm of new automobile |
| CN109141713A (en) * | 2018-08-03 | 2019-01-04 | 柴德维 | A kind of pressure alarm suitable for automobile |
| CN111442873A (en) * | 2019-01-17 | 2020-07-24 | 长城汽车股份有限公司 | Air conditioner pressure detection system and detection method for vehicle production line |
| CN110146217A (en) * | 2019-05-28 | 2019-08-20 | 上汽通用五菱汽车股份有限公司 | A kind of automotive air-conditioning system pressure-detecting device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20170926 Termination date: 20200208 |