CN110146217A - A kind of automotive air-conditioning system pressure-detecting device and method - Google Patents
A kind of automotive air-conditioning system pressure-detecting device and method Download PDFInfo
- Publication number
- CN110146217A CN110146217A CN201910450059.3A CN201910450059A CN110146217A CN 110146217 A CN110146217 A CN 110146217A CN 201910450059 A CN201910450059 A CN 201910450059A CN 110146217 A CN110146217 A CN 110146217A
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- Prior art keywords
- pressure
- detecting device
- conditioning system
- low pressure
- sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/08—Means for indicating or recording, e.g. for remote indication
- G01L19/086—Means for indicating or recording, e.g. for remote indication for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
A kind of automotive air-conditioning system pressure-detecting device and method that invention provides, it is formed using high-voltage detecting device and low pressure detection device, the high-voltage detecting device is connected to the high pressure refrigerant filler on vehicle high-voltage air-conditioner pipe, the low pressure detection device is connected to the low pressure refrigerant filler on vehicle low pressure air-conditioner pipe, solution is inconvenient to obtain sensing data in the prior art, there is no low-pressure sensor, it can only visible reading, not the technical issues of not being able to satisfy vibration noise test evaluation requirement, realize real-time detection and display high-low pressure data, avoid influence of the mechanical pressure gauge additional line to air-conditioning system pressure oscillation and vibration noise, avoiding can not be recorded using data acquisition equipment or secondary meter, the technical effect of the problem of display and processing data and Closed-loop pressure control.
Description
Technical field
The present invention relates to auto parts fields, in particular to a kind of automotive air-conditioning system pressure-detecting device and side
Method.
Background technique
As depicted in figs. 1 and 2, the first existing air-conditioning system pressure-detecting device is that one is welded on air-conditioning high-voltage tube
Connector and pressure sensor, no low-pressure sensor, high-pressure pressure sensor be it is fixed, cannot dismantle, and pressure sensing
Device is generally all mounted on the position of bad operation, and connector is not general, cannot connect with other data capture and detection apparatus.High pressure pressure
Force snesor is connect by cable with vehicle motor ECU or electric fan ECU, and is controlled after being acquired by ECU and handled data
Electric fan operation, pressure sensor data can only be read by special purpose vehicle detection device by ECU, it has not been convenient to be used.
Existing second of air-conditioning system pressure-detecting device and method are read by mechanical air conditioner coolant pressure gauge
Data, the device are to detect filler with the air conditioner coolant on automobile by pipeline to connect, and convert pointer for loine pressure
Rotate angle, band coolant charging function.
First method and device, the A/C pressure sensor on vehicle are typically mounted at unworkable position, not side
Just sensing data is obtained；The data detected are also inconvenient to be read by other equipment, and most of vehicle is only furnished with high pressure
Pressure sensor, without low-pressure sensor.
Second method and device are mechanical pointer pressure detecting table, can only visible reading, cannot be at data acquisition
Reason equipment shows, records and handles data；Air gauge pipeline is too long, and additional line is to the motion state of refrigerant and vibration and sound
Wave transmitting all has an impact, and is not able to satisfy vibration noise test evaluation requirement.
Summary of the invention
The present invention provides a kind of automotive air-conditioning system pressure-detecting device and method, is examined using high-voltage detecting device and low pressure
Device composition is surveyed, the high-voltage detecting device is connected to the high pressure refrigerant filler on vehicle high-voltage air-conditioner pipe, the low pressure inspection
It surveys device and is connected to the low pressure refrigerant filler on vehicle low pressure air-conditioner pipe, the high-voltage detecting device includes the first fast quick access
Head, first sensor, first transmission line cable, the first sensor are integrated in first quick coupling, and described first passes
Defeated cable is inserted into the first sensor by connector, and the low pressure detection device includes the second quick coupling, the second sensing
Device, second transmission line cable, the second sensor are integrated in second quick coupling, and the second transmission line cable is by connecing
Head is inserted into the second sensor, the first transmission line cable connected with the second transmission line cable other end secondary meter or
Data acquisition equipment, solution are inconvenient to obtain sensing data in the prior art, without low-pressure sensor, can only visually read
The technical issues of counting, not being able to satisfy vibration noise test evaluation requirement.
This automotive air-conditioning system pressure-detecting device that the present invention provides to solve above-mentioned technical problem, is examined by high pressure
Device and low pressure detection device composition are surveyed, the high-voltage detecting device is connected to the filling of the high pressure refrigerant on vehicle high-voltage air-conditioner pipe
Mouthful, the low pressure detection device is connected to the low pressure refrigerant filler on vehicle low pressure air-conditioner pipe, the high-voltage detecting device packet
The first quick coupling, first sensor, first transmission line cable are included, the first sensor is integrated in first quick coupling
Interior, the first transmission line cable is inserted into the first sensor by connector, and the low pressure detection device includes second quick
Connector, second sensor, second transmission line cable, the second sensor are integrated in second quick coupling, and described second
Transmission cable is inserted into the second sensor by connector, the first transmission line cable and the second transmission line cable other end
Connect secondary meter or data acquisition equipment.
Further, the first sensor and the second sensor are the piezoresistive pressure sensor of integrated transmitter,
The first sensor connects first quick coupling with connector by screw thread, and the second sensor passes through screw thread and connector
Connect second quick coupling；
Further, the high-voltage detecting device detection pressure range is 0barG~31barG, low pressure detection device detection pressure
Strength journey is 0barG~4.2barG；
Further, the high-voltage detecting device and the low pressure detection device use 5v ± 0.5V direct current supply, output
0.5V~4.5V d. c. voltage signal；
Further, the high-voltage detecting device and the low pressure detection device operating temperature range are -40 DEG C~135 DEG C；
Further, the high-voltage detecting device and the low pressure detection device pressure detecting precision are ± 2%F.S@- 40
DEG C~135 DEG C；
Further, the first transmission line cable and the second transmission line cable are 3 line cables of belt lacing；
Further, first quick coupling by clamping or/and is bolted with the high pressure refrigerant filler；
Further, second quick coupling by clamping or/and is bolted with the low pressure refrigerant filler.
A kind of automotive air-conditioning system pressure detection method measures automotive air-conditioning system pressure, the dress using described device
It sets and is connect with data collection and control equipment, real-time display, record handles detected air-conditioning system high low pressure number pressure
According to, and other data of the pressure data that will test and system or the parameter of setting compare, output control signal, control
Relevant device operation.
The utility model has the advantages that avoiding mechanical pressure gauge additional line to air-conditioning system pressure oscillation and vibration possessed by of the invention
The influence of moving noise；Avoiding can not be using data acquisition equipment or secondary meter record, display and processing data and closed loop pressure
The problem of power controls；The air-conditioning system pressure data that can will test in real time and other collected data of data acquisition equipment into
Row comparative analysis.
Detailed description of the invention
Fig. 1 be in the prior art mounted air conditioner system pressure detecting and control connection schematic diagram.
Fig. 2 is prior art air conditioning pressure detection device connection schematic diagram.
Fig. 3 is automotive air-conditioning system pressure-detecting device schematic diagram of the present invention.
Fig. 4 is automotive air-conditioning system pressure-detecting device connection schematic diagram of the present invention.
Fig. 5 is high-voltage detecting device schematic diagram of the present invention.
Fig. 6 is low pressure detection device schematic diagram of the present invention.
Fig. 7 is automotive air-conditioning system pressure-detecting device working principle diagram of the present invention.
Fig. 8 is automotive air-conditioning system pressure-detecting device electrical connection diagram of the present invention.
Fig. 9 is that automotive air-conditioning system pressure-detecting device of the present invention measures certain air-conditioning system high pressure gas, low pressure is inhaled
Atmospheric pressure result schematic diagram.
Figure 10 be automotive air-conditioning system pressure-detecting device of the present invention measure certain air-conditioning system low pressure air suction pressure with
Compressor ECV current relationship result schematic diagram.
Figure 11 is the low pressure detection device output characteristic curve figure of air-conditioning system pressure-detecting device of the present invention.
Figure 12 is the high-voltage detecting device output characteristic curve figure of air-conditioning system pressure-detecting device of the present invention.
Wherein, symbol is simply described as follows in attached drawing:
1. high-voltage detecting device；2. low pressure detection device；3. vehicle high-voltage air-conditioner pipe；4. vehicle low pressure air-conditioner pipe；101.
First quick coupling；102. first sensor；103. first transmission line cable；201. second quick couplings；202. second sensor；
203. second transmission line cables.
Specific embodiment
In conjunction with above-mentioned Detailed description of the invention specific embodiments of the present invention.
As shown in Figure 3 and Figure 4, the present invention provides a kind of automotive air-conditioning system pressure-detecting device, by high-voltage detecting device 1
It is formed with low pressure detection device 2, high and low pressure can be detected respectively, high and low pressure, the high pressure detection dress can also be detected simultaneously
The 1 high pressure refrigerant filler being connected on vehicle high-voltage air-conditioner pipe 3 is set, it is empty that the low pressure detection device 2 is connected to vehicle low pressure
The low pressure refrigerant filler on pipe 4 is adjusted, versatility is good, is applicable to current all vehicles.
Further, as shown in figure 5, the high-voltage detecting device 1 include the first quick coupling 101, first sensor 102,
First transmission line cable 103, the first sensor 102 are integrated in first quick coupling 101, are integrated in the prior art
The advantages of two kinds of device and method, the shortcomings that avoiding two methods, the first transmission line cable 103 is inserted into described by connector
In one sensor 102；
Further, as shown in fig. 6, the low pressure detection device 2 include the second quick coupling 201, second sensor 202,
Second transmission line cable 203, the second sensor 202 are integrated in second quick coupling 201, are integrated in the prior art
The advantages of two kinds of device and method, the shortcomings that avoiding two methods, the second transmission line cable 203 is inserted into described by connector
In two sensors 202, the first transmission line cable 103 connects secondary meter or number with 203 other end of second transmission line cable
According to acquisition equipment, output signal can be transferred to secondary meter or data acquisition equipment, read air-conditioning real-time pressure data.
Further, the first sensor 102 and the second sensor 202 are that the pressure drag type pressure of integrated transmitter passes
Sensor, the first sensor 102 connect first quick coupling 101, the second sensor 202 with connector by screw thread
Second quick coupling 201, easy disassembly are connected with connector by screw thread；
Further, it is 0barG~31barG that the high-voltage detecting device 1, which detects pressure range, and low pressure detection device 2 detects
Pressure range is 0barG~4.2barG；
Further, the high-voltage detecting device 1 and the low pressure detection device 2 use 5v ± 0.5V direct current supply, output
0.5V~4.5V d. c. voltage signal；
Further, the high-voltage detecting device 1 and 2 operating temperature range of low pressure detection device are -40 DEG C~135
℃；
Further, the high-voltage detecting device 1 and 2 pressure detecting precision of the low pressure detection device are ± 2%F.S@-
40 DEG C~135 DEG C；
Further, the first transmission line cable 103 and the second transmission line cable 203 are 3 line cables of belt lacing；
Further, first quick coupling 101 by clamping or/and is bolted with the high pressure refrigerant filler,
Easy disassembly and sealing；
Further, second quick coupling 201 by clamping or/and is bolted with the low pressure refrigerant filler,
Easy disassembly and sealing.
As shown in Figure 7 and Figure 8, a kind of automotive air-conditioning system pressure detection method measures air conditioning for automobiles using described device
System pressure, described device are connect with data collection and control equipment, real-time display, and record handles detected air-conditioning system
System high low pressure pressure data, and other data of the pressure data that will test and system or the parameter of setting compare, it is defeated
Signal, control relevant device operation are controlled out.
This automotive air-conditioning system pressure-detecting device provided by the invention and method, using quick coupling and air-conditioning duct
On the connection of coolant charging mouth, versatility is good, is applicable to current all vehicles；Using quick coupling clamping plus screw-threaded coupling side
Formula, easy disassembly；The pressure data that directly will test is converted into standard voltage data, facilitates by other data acquisition equipment institutes
It reads；Design has high-pressure pressure sensor and low-pressure sensor, complete detection air-conditioning system Suck and exhaust pressure；It reduces subjective
The error of visible reading can show, record and handle data with data acquisition process equipment；Without additional line to air-conditioning system
The influence of pipeline refrigerant meets vibration noise test evaluation requirement；Mechanical pressure gauge additional line is solved to air-conditioning system
Pressure oscillation and the influence of vibration noise；Solving can not be using data acquisition equipment or secondary meter record, display and processing
The problem of data and Closed-loop pressure control；No additional line and mechanical pressure show table, reduce the risk of gas leakage, more hold
Easily sealing；Device spirit lightness is high, and reaction is fast；Device eliminates pipeline, and mechanical compression table, manufacturing cost is lower, manufacture difficulty
It reduces.
This automotive air-conditioning system pressure-detecting device provided by the invention and method, Usage data collection equipment and detection
Device connection measures certain air-conditioning system high pressure gas, low pressure air suction pressure result as shown in figure 9, measuring the suction of certain air-conditioning system low pressure
Atmospheric pressure and compressor ECV current relationship are as shown in Figure 10, and the low pressure detection device of air-conditioning system pressure-detecting device exports special
Linearity curve is as shown in figure 11, and the high-voltage detecting device output characteristic curve of air-conditioning system pressure-detecting device is as shown in figure 12.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Present invention specific implementation is only limited to these instructions, for those of ordinary skill in the art to which the present invention belongs, not
Under the premise of being detached from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the protection of invention
Range.
Claims (10)
1. a kind of automotive air-conditioning system pressure-detecting device, it is characterised in that: by high-voltage detecting device and low pressure detection device group
At the high-voltage detecting device is connected to the high pressure refrigerant filler on vehicle high-voltage air-conditioner pipe, and the low pressure detection device connects
The low pressure refrigerant filler on vehicle low pressure air-conditioner pipe is connect, the high-voltage detecting device includes the first quick coupling, the first biography
Sensor, first transmission line cable, the first sensor are integrated in first quick coupling, and the first transmission line cable passes through
Connector is inserted into the first sensor, and the low pressure detection device includes the second quick coupling, second sensor, the second transmission
Cable, the second sensor are integrated in second quick coupling, and the second transmission line cable passes through described in connector insertion
In second sensor, the first transmission line cable connects secondary meter with the second transmission line cable other end or data acquisition is set
It is standby.
2. automotive air-conditioning system pressure-detecting device according to claim 1, it is characterised in that: the first sensor and
The second sensor is the piezoresistive pressure sensor of integrated transmitter, and the first sensor is connected by screw thread with connector
First quick coupling, the second sensor connect second quick coupling with connector by screw thread.
3. automotive air-conditioning system pressure-detecting device according to claim 1, it is characterised in that: the high-voltage detecting device
Detection pressure range is 0barG~31barG, and it is 0barG~4.2barG that low pressure detection device, which detects pressure range,.
4. automotive air-conditioning system pressure-detecting device according to claim 1, it is characterised in that: the high-voltage detecting device
5v ± 0.5V direct current supply is used with the low pressure detection device, exports 0.5V~4.5V d. c. voltage signal.
5. automotive air-conditioning system pressure-detecting device according to claim 1, it is characterised in that: the high-voltage detecting device
It is -40 DEG C~135 DEG C with the low pressure detection device operating temperature range.
6. automotive air-conditioning system pressure-detecting device according to claim 1, it is characterised in that: the high-voltage detecting device
It is@- 40 DEG C of ± 2%F.S~135 DEG C with the low pressure detection device pressure detecting precision.
7. automotive air-conditioning system pressure-detecting device according to claim 2, it is characterised in that: the first transmission line cable
It is 3 line cables of belt lacing with the second transmission line cable.
8. automotive air-conditioning system pressure-detecting device according to claim 1, it is characterised in that: first quick coupling
It by clamping or/and is bolted with the high pressure refrigerant filler.
9. automotive air-conditioning system pressure-detecting device according to claim 1, it is characterised in that: second quick coupling
It by clamping or/and is bolted with the low pressure refrigerant filler.
10. a kind of automotive air-conditioning system pressure detection method, it is characterised in that: this method is any described using claim 1 to 9
Device measures automotive air-conditioning system pressure, and any described device of claim 1 to 9 is connect with data collection and control equipment, real
When show, record, handle detected air-conditioning system high low pressure pressure data, and the pressure data and system that will test
Other data or the parameter of setting compare, output control signal, control relevant device operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910450059.3A CN110146217A (en) | 2019-05-28 | 2019-05-28 | A kind of automotive air-conditioning system pressure-detecting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910450059.3A CN110146217A (en) | 2019-05-28 | 2019-05-28 | A kind of automotive air-conditioning system pressure-detecting device and method |
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| Publication Number | Publication Date |
|---|---|
| CN110146217A true CN110146217A (en) | 2019-08-20 |
Family
ID=67592020
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| CN201910450059.3A Pending CN110146217A (en) | 2019-05-28 | 2019-05-28 | A kind of automotive air-conditioning system pressure-detecting device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654712A (en) * | 2021-07-12 | 2021-11-16 | 江铃汽车股份有限公司 | Pressure detection device and method |
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| CN109406045A (en) * | 2018-09-27 | 2019-03-01 | 浙江众泰汽车制造有限公司 | Automotive air-conditioning system pressure test device and automotive air-conditioning system method for testing pressure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006108056A1 (en) * | 2005-04-05 | 2006-10-12 | The Product Group, Llc | Intelligent controller for refrigerating and air conditioning systems |
| CN205066999U (en) * | 2015-11-05 | 2016-03-02 | 莆田市云驰新能源汽车研究院有限公司 | Pressure measurement of vehicle air conditioner system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113654712A (en) * | 2021-07-12 | 2021-11-16 | 江铃汽车股份有限公司 | Pressure detection device and method |
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Application publication date: 20190820 |