CN202614288U - Device for calibrating refrigerant charging amount of vehicle air conditioner - Google Patents
Device for calibrating refrigerant charging amount of vehicle air conditioner Download PDFInfo
- Publication number
- CN202614288U CN202614288U CN 201220216411 CN201220216411U CN202614288U CN 202614288 U CN202614288 U CN 202614288U CN 201220216411 CN201220216411 CN 201220216411 CN 201220216411 U CN201220216411 U CN 201220216411U CN 202614288 U CN202614288 U CN 202614288U
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- conditioning
- air conditioner
- refrigerant charging
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Abstract
The utility model discloses a device for calibrating the refrigerant charging amount of a vehicle air conditioner. The device comprises a refrigerant charging machine (1), a first pressure sensor (3), a second pressure sensor (4), a temperature sensor (5) and data acquiring equipment (2), wherein the refrigerant charging machine (1) is connected with the high-voltage end of an air conditioner compressor of a detection sample vehicle through a high-pressure pipeline (11), and is connected with the low-voltage end of the air conditioner compressor of the detection sample vehicle through a low-pressure pipeline (12); the temperature sensor (5) is connected with at least one temperature detection point of the air conditioner of the detection sample vehicle; and the data acquiring equipment (2) is used for receiving detection signals transmitted by the first pressure sensor (3), the second pressure sensor (4) and the temperature sensor (5) to calculate the optimal refrigerant charging amount of the air conditioner of the detection sample vehicle. By the device for calibrating the refrigerant charging amount of the vehicle air conditioner, the charging pipeline of the refrigerant charging machine is connected with the pressure sensors, so that pressure data can be detected while a refrigerant is charged; and therefore, the optimal refrigerant charging amount of the vehicle air conditioner can be accurately determined.
Description
Technical field
The utility model relates to a kind of vehicle air conditioner coolant charging technology, and is particularly related to a kind of vehicle air conditioning coolant injection amount caliberating device.
Background technology
Along with improving constantly of automotive performance, to car comfort require increasingly highly, simultaneously also high request has been proposed for the refrigeration of air conditioning for automobiles, and the coolant injection amount whether suitable refrigeration to air conditioning for automobiles has fundamental influence.
Vehicle air conditioning is filled refrigerant normally fill from the low pressure end of air conditioner compressor of vehicle, in the prior art, fill in the testing program at air conditioner coolant, the pressure detection that fills refrigerant and compressor low pressure end can't be carried out simultaneously.Fill in the process of the test at air conditioner coolant; Be after filling a certain amount of refrigerant, to change pressure-detecting device rapidly and carry out pressure detection, detect recession downforce pick-up unit and continue to fill refrigerant; Fill repeatedly and pressure detection, to confirm the optimal refrigerant charging amount of air-conditioning.
In the above-mentioned coolant injection testing program; It is very loaded down with trivial details that the method for filled refrigerant and pressure detection not only causes testing implementation process; And test figure is discontinuous, imperfect; Influence fills the analysis of test figure and the judgement of test findings, is difficult to accurately determine the optimal refrigerant charging amount, has influenced the air conditioner refrigerating effect of the automobile after filling thus.
The utility model content
For solving the aforementioned problems in the prior, the utility model provides a kind of vehicle air conditioning coolant injection amount caliberating device.
The vehicle air conditioning coolant injection amount caliberating device of the utility model comprises:
Coolant injection machine 1, the high-pressure side of the compressor of air conditioner through pressure piping 11 joint detection sample cars, the low pressure end of the compressor of air conditioner through low pressure pipeline 12 joint detection sample cars;
Second pressure transducer 4 is connected with this low pressure pipeline 12;
In addition, the temperature detecting point of the air-conditioning of the detection sample car of said temperature sensor 5 connections also comprises: the tube wall of air-conditioning, compressor and condenser.
The vehicle air conditioning coolant injection amount caliberating device of the utility model; The filled pipeline of coolant injection machine has connected pressure transducer; Make thus when carrying out coolant injection, also can the detected pressures data, thus can determine the optimal refrigerant charging amount of air conditioning for automobiles accurately.
Description of drawings
Fig. 1 is the synoptic diagram of the vehicle air conditioning coolant injection amount caliberating device of the utility model.
Embodiment
The exemplary embodiments that embodies the utility model characteristic and advantage will be described in detail in following explanation.Be understood that the utility model can have various variations on various embodiment, the scope of its neither disengaging the utility model, and explanation wherein and appended accompanying drawing be the usefulness of being used as explanation in itself, but not in order to restriction the utility model.
For realizing accurately confirming the optimal refrigerant charging amount of air conditioning for automobiles, this case provides a kind of vehicle air conditioning coolant injection amount caliberating device.Referring to shown in Figure 1, this device comprises: coolant injection machine 1, data acquisition equipment 2, first pressure transducer 3, second pressure transducer 4 and temperature sensor 5.
The filled pipeline of this coolant injection machine 1 comprises pressure piping 11 and low pressure pipeline 12; Pressure piping 11 is a three-way device with low pressure pipeline 12, can connect pressure transducer, makes this vehicle air conditioning coolant injection amount caliberating device thus when carrying out coolant injection; Also can the detected pressures data; Promptly save test period, guaranteed the integrality and the accuracy of test figure again, helped confirming the optimal refrigerant charging amount of air-conditioning.
This coolant injection machine 1 is through the high-pressure side of the compressor of air conditioner of pressure piping 11 joint detection sample cars, and the low pressure end of the compressor of air conditioner through low pressure pipeline 12 joint detection sample cars is to fill refrigerant to the air-conditioning that detects sample car.
This first pressure transducer 3 is connected with this pressure piping 11, is used to detect the pressure of the high-pressure side of compressor of air conditioner; This second pressure transducer 4 is connected with this low pressure pipeline 12, is used to detect the pressure of the low pressure end of compressor of air conditioner.
At least one temperature detecting point of the air-conditioning of these temperature sensor 5 joint detection sample cars; This at least one temperature detecting point comprises the air outlet of air-conditioning; Further; For whether the miscellaneous part that detects air-conditioning also runs well in the process of filling; This temperature detecting point can also comprise: the tube wall of air-conditioning, compressor and condenser etc., the temperature that this temperature sensor 5 detects these parts is to judge whether these parts are normal.
This data acquisition equipment 2; Be connected with temperature sensor 5 signals with first pressure transducer 3, second pressure transducer 4, it receives detection signal that first pressure transducer 3, second pressure transducer 4 and temperature sensor 5 send to calculate the optimal refrigerant charging amount of the air-conditioning that detects sample car.
After each above-mentioned device is installed connection, just can carry out air conditioner coolant and fill test, start the filled refrigerant of 1 pair of air conditioning for automobiles of coolant injection machine earlier; Charging amount be 0 milliliter to the N milliliter, wherein the value of N be those skilled in the art estimate one be slightly larger than the optimal refrigerant charging amount value, like air-conditioning for certain kart; Best charging amount possibly be 750 milliliters; Then when testing, the value that can estimate N is 800 milliliters, in 0 to 800 milliliter of scope, confirms best charging amount thus.
Fill in the refrigerant process of 0 milliliter-N milliliter at air-conditioning automobile; The variation of each temperature spot of the air-conditioning of these data acquisition equipment 2 acquisition testing sample cars; And the pressure of the high-pressure side of the compressor of air-conditioning and low pressure end changes; Through the curve that monitor temperature changes and pressure changes, confirm the optimal refrigerant charging amount of air-conditioning.
In the present embodiment, confirm that the scheme of the optimal refrigerant charging amount of air-conditioning can be following:
Scheme 1, temperature sensor 5 is connected with the air outlet of air-conditioning.When the pressure of the high-pressure side that satisfies compressor of air conditioner reaches a high pressure preset range value, the pressure of low pressure end reaches under the condition of a low pressure preset range value, and reaching the air conditioner coolant charging amount in the minimum moment with the temperature of air outlet is the optimal refrigerant charging amount.Wherein, this preset range value value range that can make the normal operation of air-conditioning that to be those skilled in the art set according to the performance of air-conditioning.
Pass through said method; Just can confirm the optimal refrigerant charging amount of the air-conditioning of this detection vehicle, thus, the air-conditioning of the vehicle of the type carried out coolant injection according to this optimal refrigerant charging amount; Just can make the coupling of air-conditioning system of vehicle more reasonable, refrigeration is better.
The vehicle air conditioning coolant injection amount caliberating device of the utility model; The filled pipeline of coolant injection machine has connected pressure transducer; Make thus when carrying out coolant injection, also can the detected pressures data, thus can determine the optimal refrigerant charging amount of air conditioning for automobiles accurately.
Those skilled in the art should recognize change and the retouching of under the situation of scope that does not break away from the appended the utility model that claim disclosed of the utility model and spirit, being done, and all belong within the protection domain of claim of the utility model.
Claims (2)
1. a vehicle air conditioning coolant injection amount caliberating device is characterized in that, comprising:
Coolant injection machine (1), the high-pressure side of the compressor of air conditioner through pressure piping (11) joint detection sample car, the low pressure end of the compressor of air conditioner through low pressure pipeline (12) joint detection sample car;
First pressure transducer (3) is connected with this pressure piping (11);
Second pressure transducer (4) is connected with this low pressure pipeline (12);
Temperature sensor (5), at least one temperature detecting point of the air-conditioning of joint detection sample car; Said at least one temperature detecting point comprises the air outlet of air-conditioning;
Data acquisition equipment (2); Be connected with said first pressure transducer (3), second pressure transducer (4) and temperature sensor (5) signal, the detection signal that receives said first pressure transducer (3), second pressure transducer (4) and temperature sensor (5) transmission is to calculate the optimal refrigerant charging amount of the air-conditioning that detects sample car.
2. vehicle air conditioning coolant injection amount caliberating device according to claim 1 is characterized in that, the temperature detecting point of the air-conditioning of the detection sample car that said temperature sensor (5) connects also comprises: the tube wall of air-conditioning, compressor and condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220216411 CN202614288U (en) | 2012-05-14 | 2012-05-14 | Device for calibrating refrigerant charging amount of vehicle air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220216411 CN202614288U (en) | 2012-05-14 | 2012-05-14 | Device for calibrating refrigerant charging amount of vehicle air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202614288U true CN202614288U (en) | 2012-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220216411 Expired - Fee Related CN202614288U (en) | 2012-05-14 | 2012-05-14 | Device for calibrating refrigerant charging amount of vehicle air conditioner |
Country Status (1)
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| CN (1) | CN202614288U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453943A (en) * | 2013-07-19 | 2013-12-18 | 浙江金刚汽车有限公司 | Calibration method of coolant filling equipment |
| CN103512291A (en) * | 2013-09-18 | 2014-01-15 | 威海瑞冬空调有限公司 | Storage type refrigerant adjusting and controlling device |
| CN106198043A (en) * | 2016-06-28 | 2016-12-07 | 河南师范大学 | A kind of vehicle air conditioner refrigerant filling volume calibration method |
| CN107702291A (en) * | 2017-10-31 | 2018-02-16 | 广东美的暖通设备有限公司 | A kind of control method of coolant injection, control system and air conditioner |
| CN112014133A (en) * | 2020-08-19 | 2020-12-01 | 中国第一汽车股份有限公司 | Method for confirming low-temperature optimal charging amount of refrigerant of heat pump air conditioner of pure electric vehicle |
-
2012
- 2012-05-14 CN CN 201220216411 patent/CN202614288U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453943A (en) * | 2013-07-19 | 2013-12-18 | 浙江金刚汽车有限公司 | Calibration method of coolant filling equipment |
| CN103453943B (en) * | 2013-07-19 | 2015-12-02 | 浙江金刚汽车有限公司 | A kind of scaling method of coolant filling equipment |
| CN103512291A (en) * | 2013-09-18 | 2014-01-15 | 威海瑞冬空调有限公司 | Storage type refrigerant adjusting and controlling device |
| CN103512291B (en) * | 2013-09-18 | 2015-12-02 | 威海瑞冬空调有限公司 | Storage type refrigerant adjusting device |
| CN106198043A (en) * | 2016-06-28 | 2016-12-07 | 河南师范大学 | A kind of vehicle air conditioner refrigerant filling volume calibration method |
| CN107702291A (en) * | 2017-10-31 | 2018-02-16 | 广东美的暖通设备有限公司 | A kind of control method of coolant injection, control system and air conditioner |
| CN107702291B (en) * | 2017-10-31 | 2020-12-04 | 广东美的暖通设备有限公司 | Refrigerant charging control method and system and air conditioner |
| CN112014133A (en) * | 2020-08-19 | 2020-12-01 | 中国第一汽车股份有限公司 | Method for confirming low-temperature optimal charging amount of refrigerant of heat pump air conditioner of pure electric vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20170514 |
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| CF01 | Termination of patent right due to non-payment of annual fee |