Double-vortex hybrid air conditioner compressor testing device

Abstract

The utility model discloses a double-vortex hybrid power air condition compressor testing device, which relates to the technical field of automobile air condition compressor testing and comprises a rack provided with a driving motor, a compressor, a condenser water tank and an evaporator water tank. The compressor is provided with a belt driving end and an electric driving end, and the belt driving end of the compressor is connected with the driving motor through a belt; the condenser water tank is connected with the evaporator water tank through a first pipeline and a second pipeline. A hot-air expansion valve is arranged on the first pipeline, one end of the hot-air expansion valve is connected with the exhaust end of the compressor through an exhaust valve, and the other end of the hot-air expansion valve is connected with the suction end of the compressor through a suction valve; and a refrigerant sight glass is arranged on the second pipeline. According to the utility model, the testing functions of the belt end compressor and the electric end compressor are designed, and the testing requirement of simultaneous operation of double systems can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air-conditioning compressor testing, in particular to a double-scroll hybrid air-conditioning compressor testing device. Background Art

[0002] The air-conditioning compressor for hybrid vehicles is different from other refrigeration compressors. When the vehicle is running, the air-conditioning compressor can be driven by the engine belt; when the vehicle is parked, the air-conditioning compressor can also be driven by the motor; under certain working conditions, it can also be driven by the belt and the motor at the same time.

[0003] The current automotive air-conditioning compressor test equipment cannot meet the testing requirements of hybrid vehicle air-conditioning compressors. Utility Model Content

[0004] In view of the defects existing in the prior art, the purpose of the utility model is to provide a twin-scroll hybrid air-conditioning compressor testing device, which is designed with testing functions for the belt-end compressor and the electric-end compressor, and can meet the testing requirements of simultaneous operation of dual systems.

[0005] To achieve the above objectives, the technical solution adopted by the utility model is: a twin-scroll hybrid air-conditioning compressor testing device, comprising a frame, the frame is provided with a driving motor, a compressor, a condenser water tank and an evaporator water tank; the compressor has a belt drive end and an electric drive end, and the belt drive end of the compressor is connected to the driving motor through a belt; the condenser water tank is connected to the evaporator water tank through a first pipeline and a second pipeline respectively; a hot gas expansion valve is provided on the first pipeline, and one end of the hot gas expansion valve is connected to the exhaust end of the compressor through an exhaust valve, and the other end of the hot gas expansion valve is connected to the intake end of the compressor through an intake valve; a refrigerant sight glass is provided on the second pipeline.

[0006] A further improvement is that a mounting plate is arranged on the top of the frame, and the drive motor and the compressor are arranged on the mounting plate; a condenser water tank, an evaporator water tank, an electric control cabinet and a frequency conversion control cabinet are arranged inside the frame.

[0007] A further improvement is that the suction end of the compressor is connected to the suction pressure gauge, the vacuum valve, and the fluorine filling valve respectively; the exhaust end of the compressor is connected to the exhaust pressure gauge, and a balancing valve is provided between the exhaust end of the compressor and the suction end of the compressor.

[0008] Further improvements are: a first temperature and pressure sensor, a second temperature and pressure sensor and a third temperature and pressure sensor are also arranged on the first pipeline; the first temperature and pressure sensor is located between the hot gas expansion valve and the condenser water tank; the second temperature and pressure sensor and the third temperature and pressure sensor are located between the hot gas expansion valve and the evaporator water tank.

[0009] A further improvement is that a throttle valve, a flow meter and a drying filter are also provided on the second pipeline; the throttle valve is located between the refrigerant sight glass and the evaporator water tank, and the flow meter and the drying filter are located between the refrigerant sight glass and the condenser water tank.

[0010] A further improvement is that a fourth temperature and pressure sensor, a fifth temperature and pressure sensor and a sixth temperature and pressure sensor are also arranged on the second pipeline; the fourth temperature and pressure sensor and the fifth temperature and pressure sensor are located between the drying filter and the condenser water tank; the sixth temperature and pressure sensor is located between the throttle valve and the evaporator water tank.

[0011] A further improvement is that the condenser water tank is provided with a first stirring water pump, and the evaporator water tank is provided with a second stirring water pump.

[0012] A further improvement is that the condenser water tank is provided with a first electric heater and a first temperature sensor, and the evaporator water tank is provided with a second electric heater and a second temperature sensor.

[0013] A further improvement is that the condenser water tank is provided with a cooling coil.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model adopts a driving motor to simulate a car engine, and a belt drive to make the belt-end compressor work. At the same time, the driving motor speed can be changed through the inverter control cabinet to meet the test requirements of various working conditions. The electric control cabinet can drive the electric end compressor to operate at different speeds to meet the test requirements of various working conditions of the electric end compressor. The control parts of the belt end compressor and the electric end compressor are independent of each other, and can not only be tested separately, but also can adapt to the dual system simultaneous operation required for the hybrid air conditioning test.

[0016] 2. In the utility model, the cooling coil and heater in the condenser water tank can simulate the ambient temperature in spring, summer, autumn and winter. The operation of the stirring water pump improves the heat exchange efficiency in the condenser water tank to ensure the accuracy of the test data.

[0017] 3. In the present invention, the heater in the evaporator water tank can ensure that the evaporator is quickly heated during the test and improve the switching efficiency between different working conditions. The operation of the stirring water pump improves the heat exchange efficiency in the evaporator water tank to ensure the accuracy of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a dual-scroll hybrid air-conditioning compressor testing device in an embodiment of the utility model;

[0019] Figure 2It is a structural schematic diagram of another perspective of the dual-scroll hybrid air-conditioning compressor testing device in an embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of a twin-scroll hybrid air-conditioning compressor testing device in an embodiment of the utility model.

[0021] Reference numerals:

[0022] 1-frame; 2-mounting plate; 3-drive motor; 4-compressor; 5-belt drive end; 6-electric drive end; 7-condenser water tank; 8-evaporator water tank; 9-frequency control cabinet; 10-electric control cabinet; 11-first stirring water pump; 12-second stirring water pump; 13-first electric heater; 14-second electric heater; 15-first temperature sensor; 16-second temperature sensor; 17-cooling coil; 18-first pipeline; 19-second pipeline; 20-hot air expansion Expansion valve; 21-intake valve; 22-exhaust valve; 23-balancing valve; 24-fluorine filling valve; 25-vacuum valve; 26-intake pressure gauge; 27-exhaust pressure gauge; 28-drying filter; 29-flow meter; 30-refrigerant sight glass; 31-throttle valve; 32-first temperature and pressure sensor; 33-second temperature and pressure sensor; 34-third temperature and pressure sensor; 35-fourth temperature and pressure sensor; 36-fifth temperature and pressure sensor; 37-sixth temperature and pressure sensor. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below. The embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0024] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise specified and limited, the terms "assembly", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the utility model, unless otherwise specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "below" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than the height of the second feature. A first feature being "above", "below" and "below" a second feature includes that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than the second feature.

[0028] The following is a further description of the specific implementation of the utility model in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the utility model are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the utility model, but cannot be understood as limiting the utility model.

[0029] See also Figure 1 to Figure 3As shown, the embodiment of the utility model provides a dual-scroll hybrid air-conditioning compressor test device, including a frame 1, the frame 1 is provided with a driving motor 3, a compressor 4, a condenser water tank 7 and an evaporator water tank 8; the compressor 4 has a belt drive end 5 and an electric drive end 6, and the belt drive end 5 of the compressor 4 is connected to the driving motor 3 through a belt; specifically, a mounting plate 2 is provided on the top of the frame 1, and the driving motor 3 and the compressor 4 are arranged on the mounting plate 2; the condenser water tank 7, the evaporator water tank 8, the electric control cabinet 10 and the frequency conversion control cabinet 9 are arranged inside the frame 1. The electric control cabinet can drive the electric end compressor to operate at different speeds to meet the testing requirements of various working conditions of the electric end compressor. The driving motor simulates the automobile engine, and the belt drive makes the belt end compressor work. At the same time, the driving motor speed can be changed through the frequency converter control cabinet to meet the testing requirements of various working conditions.

[0030] The condenser water tank 7 is connected to the evaporator water tank 8 through the first pipeline 18 and the second pipeline 19 respectively; a hot gas expansion valve 20 is provided on the first pipeline 18, and one end of the hot gas expansion valve 20 is connected to the exhaust end of the compressor 4 through the exhaust valve 22, and the other end of the hot gas expansion valve 20 is connected to the intake end of the compressor 4 through the intake valve 21; specifically, the intake end of the compressor 4 is connected to the intake pressure gauge 26, the vacuum valve 25, and the fluorine filling valve 24 respectively; the exhaust end of the compressor 4 is connected to the exhaust pressure gauge 27, and a balancing valve 23 is provided between the exhaust end of the compressor 4 and the intake end of the compressor 4. A refrigerant sight glass 30 is provided on the second pipeline 19. The condenser water tank 7 is provided with a first stirring water pump 11, and the evaporator water tank 8 is provided with a second stirring water pump 12. The operation of the stirring water pump improves the heat exchange efficiency in the evaporator water tank to ensure the accuracy of the test data. The condenser water tank 7 is provided with a first electric heater 13, and the evaporator water tank 8 is provided with a second electric heater 14. The heater in the evaporator water tank can ensure that the evaporator heats up quickly during the test and improve the switching efficiency between different working conditions. The cooling coil and heater in the condenser water tank can simulate the ambient temperature of spring, summer, autumn and winter. The operation of the stirring water pump improves the heat exchange efficiency in the condenser water tank to ensure the accuracy of the test data. The condenser water tank 7 is provided with a first temperature sensor 15, and the evaporator water tank 8 is provided with a second temperature sensor 16. The condenser water tank 7 is provided with a cooling coil 17.

[0031] See also Figure 3 As shown, a first temperature and pressure sensor 32, a second temperature and pressure sensor 33 and a third temperature and pressure sensor 34 are also provided on the first pipeline 18; the first temperature and pressure sensor 32 is located between the hot gas expansion valve 20 and the condenser water tank 7; the second temperature and pressure sensor 33 and the third temperature and pressure sensor 34 are located between the hot gas expansion valve 20 and the evaporator water tank 8.

[0032] See also Figure 3As shown, the second pipeline 19 is also provided with a throttle valve 31, a flow meter 29 and a drying filter 28; the throttle valve 31 is located between the refrigerant sight glass 30 and the evaporator water tank 8, and the flow meter 29 and the drying filter 28 are located between the refrigerant sight glass 30 and the condenser water tank 7. Specifically, the second pipeline 19 is also provided with a fourth temperature and pressure sensor 35, a fifth temperature and pressure sensor 36 and a sixth temperature and pressure sensor 37; the fourth temperature and pressure sensor 35 and the fifth temperature and pressure sensor 36 are located between the drying filter 28 and the condenser water tank 7; the sixth temperature and pressure sensor 37 is located between the throttle valve 31 and the evaporator water tank 8.

[0033] The utility model also discloses a testing method based on the above-mentioned dual-scroll hybrid air-conditioning compressor testing device, comprising the following steps:

[0034] Step S1. The condenser water tank 7 and the evaporator water tank 8 are adjusted to a set temperature through the first electric heater 13, the second temperature sensor 16, and the cooling coil 17;

[0035] Step S2. Select the driving mode of the compressor 4. If the belt drive end 5 is selected, go to step S3; if the electric drive end 6 is selected, go to step S4;

[0036] Step S3. The drive motor 3 simulates the automobile engine, and the belt drive end 5 drives the compressor 4 to work. At the same time, the speed of the drive motor 5 can be changed by the inverter control cabinet 9 to adapt to the test requirements of various working conditions, and then go to step S5;

[0037] Step S4. The electric control cabinet 10 drives the electric drive end 6 to drive the compressor 4 to operate at different speeds to adapt to the test requirements of various working conditions of the compressor 4, and then goes to step S5;

[0038] Step S5. The data processing platform collects data from the twin-scroll hybrid air-conditioning compressor test device and outputs analysis results.

[0039] The working principle of the utility model is:

[0040] This test system uses the temperature rise method as the main test, which is a method of derivation and calculation based on the basic principles of thermodynamics. The basic formula it uses is the relationship between temperature change and absorbed heat:

[0041]

[0042] Among them, △T represents the temperature change, Q represents the absorbed heat, m represents the mass of the object, and c represents the specific heat capacity of the object.

[0043] The derivation of this formula is based on the first law of thermodynamics and experimental results. According to the first law of thermodynamics, the heat absorbed by an object is equal to the increased internal energy of the object, that is, Q = △U. The internal energy can be expressed as

[0044] △U=m×c×△T

[0045] Combining these two equations gives the temperature rise formula above.

[0046] The operation mode of the utility model includes two operation modes: manual and automatic. In the manual operation mode, each device can be started and stopped independently.

[0047] In the automatic operation mode, the system automatically tests the different working conditions of the air-conditioning compressor according to the set steps and saves the test data. Before each working condition test, the evaporator insulation water tank and the condenser insulation water tank are adjusted to the set temperature through the heater and the chiller. When all conditions are met, the working condition test begins.

[0048] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model, and the schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0049] Through the description of the above structure and principle, technicians in the relevant technical field should understand that the present invention is not limited to the above-mentioned specific implementation methods. Improvements and substitutions based on the present invention using the known technology in the field all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A twin-scroll hybrid air-conditioning compressor testing device, comprising a frame (1), characterized in that: The frame (1) is provided with a driving motor (3), a compressor (4), a condenser water tank (7) and an evaporator water tank (8); the compressor (4) has a belt driving end (5) and an electric driving end (6), and the belt driving end (5) of the compressor (4) is connected to the driving motor (3) through a belt; the condenser water tank (7) is connected to the evaporator water tank (8) through a first pipeline (18) and a second pipeline (19), respectively; a hot gas expansion valve (20) is provided on the first pipeline (18), and one end of the hot gas expansion valve (20) is connected to the exhaust end of the compressor (4) through an exhaust valve (22), and the other end of the hot gas expansion valve (20) is connected to the intake end of the compressor (4) through an intake valve (21); a refrigerant sight glass (30) is provided on the second pipeline (19).

2. The twin-scroll hybrid air-conditioning compressor testing device according to claim 1, characterized in that: A mounting plate (2) is arranged on the top of the frame (1), and the drive motor (3) and the compressor (4) are arranged on the mounting plate (2); a condenser water tank (7), an evaporator water tank (8), an electric control cabinet (10) and a frequency conversion control cabinet (9) are arranged inside the frame (1).

3. The twin-scroll hybrid air-conditioning compressor testing device according to claim 1, characterized in that: The suction end of the compressor (4) is respectively connected to a suction pressure gauge (26), a vacuum valve (25), and a fluorine filling valve (24); the exhaust end of the compressor (4) is connected to an exhaust pressure gauge (27), and a balancing valve (23) is provided between the exhaust end of the compressor (4) and the suction end of the compressor (4).

4. The twin-scroll hybrid air-conditioning compressor testing device according to claim 1, characterized in that: The first pipeline (18) is also provided with a first temperature and pressure sensor (32), a second temperature and pressure sensor (33) and a third temperature and pressure sensor (34); the first temperature and pressure sensor (32) is located between the hot gas expansion valve (20) and the condenser water tank (7); the second temperature and pressure sensor (33) and the third temperature and pressure sensor (34) are located between the hot gas expansion valve (20) and the evaporator water tank (8).

5. The twin-scroll hybrid air-conditioning compressor testing device according to claim 1, characterized in that: The second pipeline (19) is also provided with a throttle valve (31), a flow meter (29) and a drying filter (28); the throttle valve (31) is located between the refrigerant sight glass (30) and the evaporator water tank (8), and the flow meter (29) and the drying filter (28) are located between the refrigerant sight glass (30) and the condenser water tank (7).

6. The twin-scroll hybrid air-conditioning compressor testing device according to claim 5, characterized in that: The second pipeline (19) is also provided with a fourth temperature and pressure sensor (35), a fifth temperature and pressure sensor (36) and a sixth temperature and pressure sensor (37); the fourth temperature and pressure sensor (35) and the fifth temperature and pressure sensor (36) are located between the drying filter (28) and the condenser water tank (7); and the sixth temperature and pressure sensor (37) is located between the throttle valve (31) and the evaporator water tank (8).

7. The twin-scroll hybrid air-conditioning compressor testing device according to claim 1, characterized in that: The condenser water tank (7) is provided with a first stirring water pump (11), and the evaporator water tank (8) is provided with a second stirring water pump (12).

8. The twin-scroll hybrid air-conditioning compressor testing device according to claim 1, characterized in that: The condenser water tank (7) is provided with a first electric heater (13) and a first temperature sensor (15), and the evaporator water tank (8) is provided with a second electric heater (14) and a second temperature sensor (16).

9. The twin-scroll hybrid air-conditioning compressor testing device according to claim 1, characterized in that: The condenser water tank (7) is provided with a cooling coil (17).

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