CN114414266A - Air volume reversing device for air conditioning system comprehensive performance test bed - Google Patents
Air volume reversing device for air conditioning system comprehensive performance test bed Download PDFInfo
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- CN114414266A CN114414266A CN202210106924.4A CN202210106924A CN114414266A CN 114414266 A CN114414266 A CN 114414266A CN 202210106924 A CN202210106924 A CN 202210106924A CN 114414266 A CN114414266 A CN 114414266A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to an air volume reversing device for an air conditioning system comprehensive performance test bed, which comprises a shell, wherein a first cavity, a second cavity and an air passage are arranged in the shell; the first interface of the shell is externally connected with an air blowing fan, the second interface and the third interface are both communicated with the second chamber, the second interface is externally connected with an air suction fan, and the third interface is externally connected with a test wind tunnel; a first port of the three-way pipe in the second chamber is connected with the position of the air outlet end, the second port is positioned in the second chamber, and the third port is connected with the position of the third interface; and valves are arranged at the air inlet end and the third port and are used for opening or closing the corresponding air inlet end or the third port. The mode of the air quantity reversing device is adjusted through the valve, the switching is quick and flexible, the mode switching does not need to manually adjust the position of a fan or the connection of an air duct, and the time consumption of testing and the labor intensity of workers can be reduced.
Description
Technical Field
The invention belongs to the technical field of automobile testing, and particularly relates to an air volume reversing device for an air conditioning system comprehensive performance test bed.
Background
The automobile air conditioning system is one of various large systems of an automobile, the main function of the automobile air conditioning system is to cool or heat a passenger cabin and ensure the comfort of the passenger cabin, the automobile air conditioning system mainly comprises main components such as a heating ventilation air conditioner, a condenser, a compressor, an air conditioning pipeline and the like, the heating ventilation air conditioner is arranged at the lower part of an instrument board, the condenser is arranged at the front end of the automobile, and when the automobile air conditioning system is in a development stage, the single performance test of a rack and the matching test of a system level need to be carried out firstly.
The comprehensive performance test bed for the automobile air conditioner is mainly used for carrying out single body performance test and system level matching test on parts of the automobile air conditioner system. When the single body performance test is carried out on the parts, the air inlet temperature, the air inlet humidity and the air inlet quantity of the air side need to be set, and at the moment, the wind tunnel is in an air suction mode; however, when performing the system-level matching test, the air outlet temperature, the air outlet humidity, and the air outlet volume need to be set, and at this time, the wind tunnel needs to be in the blowing mode. The existing automobile air conditioner comprehensive performance test bed realizes the reversing of air quantity by adjusting the position of a fan or manually adjusting the connection of an air duct, and changes the mode of the air duct; when different experiments are carried out, the fan or the connecting pipeline must be adjusted by personnel at each time, time is consumed, air leakage caused by poor sealing is easily caused when the air channel is adjusted to be connected, and then testing errors are caused. Chinese patent CN201320121412.1 discloses an actual vehicle piping test system for a vehicle air conditioner comprehensive performance laboratory, which is also used for testing a vehicle air conditioner, but mainly aims to solve the problem that the current test system cannot perform an actual vehicle piping system test.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide the air quantity reversing device for the comprehensive performance test bed of the air conditioning system, solve the problems that the time is consumed for switching the air direction and air leakage is easily caused in the conventional automobile air conditioning comprehensive performance test bed, and achieve the effects of simple air direction switching and improvement of test accuracy.
In order to solve the technical problems, the invention adopts the following technical scheme:
an air volume reversing device for an air conditioning system comprehensive performance test bed comprises a shell, wherein a first cavity, a second cavity and an air passage are arranged in the shell, an air inlet end and an air outlet end are arranged at two ends of the air passage, the air inlet end is communicated with the first cavity, and the air outlet end is communicated with the second cavity;
the shell is provided with a first interface, a second interface and a third interface, the first interface is communicated with the first cavity and is externally connected with an air blowing fan, the second interface and the third interface are both communicated with the second cavity, the second interface is externally connected with an air suction fan, and the third interface is externally connected with a test wind tunnel;
a three-way pipe is arranged in the second chamber, the three-way pipe is provided with a first port, a second port and a third port, the first port is connected with the position of the air outlet end on the inner wall of the second chamber, the second port is positioned in the second chamber, and the third port is connected with the position of a third interface on the inner wall of the second chamber;
and valves are arranged at the air inlet end and the third port and are used for opening or closing the corresponding air inlet end or the third port.
Furthermore, the valve comprises a piston and a cylinder, the telescopic end of the cylinder is connected with the piston, and the cylinder can drive the piston to move so as to open or close the corresponding air inlet end or the third port.
Furthermore, a fourth interface is further arranged on the shell and communicated with the first cavity, and a valve used for opening or closing the fourth interface is also arranged at the fourth interface.
Furthermore, a fifth interface is further formed in the shell and communicated with the second cavity, the fifth interface is coaxial with the third interface, and a piston at the third interface can be driven by the cylinder to open or close the third interface and the fifth interface.
Furthermore, a fifth interface is further formed in the shell and communicated with the second cavity, and a valve used for opening or closing the fifth interface is further arranged at the fifth interface.
Furthermore, filter screens are arranged at the fourth interface and the fifth interface.
Further, a partition plate is arranged in the shell to divide the inner part of the shell into a first cavity and a second cavity.
Furthermore, a through hole which penetrates through the first cavity and the first port to communicate is formed in the partition plate so as to form the air passage.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the mode of the air quantity reversing device is adjusted by controlling the opening or closing of the piston A and the piston B, the switching is rapid and flexible, the mode switching does not need to manually adjust the position of a fan or the connection of an air channel, and the time consumption of testing and the labor intensity of workers can be reduced; in addition, the piston switching is intersected, the air channel connection is adjusted manually and frequently, and the test accuracy can be improved.
2. When the air volume reversing device is idle, the first chamber is communicated with the outside of the shell through the fourth interface, so that the first chamber is kept consistent with the external air pressure, the second chamber is communicated with the outside of the shell through the fifth interface, so that the second chamber is kept consistent with the external air pressure, and the damage caused by inconsistent internal and external air pressures during the idle time can be avoided.
Drawings
FIG. 1 is a perspective view of an air volume reversing device for an air conditioning system comprehensive performance test bed according to an embodiment;
FIG. 2 is an internal structure view of an air volume reversing device for an air conditioning system comprehensive performance test bed according to an embodiment;
FIG. 3 is a front view of FIG. 2;
the device comprises a shell 1, a partition plate 2, a first chamber 3, a second chamber 4, a first connector 5, a second connector 6, a third connector 7, a three-way pipe 8, a first port 81, a second port 82, a third port 83, a piston A9, a piston B10, a piston C11, a cylinder 12, a fixing plate 13, an elbow 14, a fourth connector 15, a fifth connector 16, a filter screen 17 and a support 18.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Example (b):
referring to fig. 1-3, an air volume reversing device for an air conditioning system comprehensive performance test bed includes a housing 1, in this embodiment, the housing 1 is rectangular, a vertical partition plate 2 is disposed inside the housing 1 to divide the interior of the housing 1 into a left chamber and a right chamber, the left chamber is a first chamber 3, the right chamber is a second chamber 4, a through hole (not shown in the figure) is disposed on the partition plate 2 in a left-right penetrating manner, the through hole forms an air channel, two ends of the air channel are respectively communicated with the first chamber 3 and the second chamber 4, one end of the air channel communicated with the first chamber 3 is an air inlet end, and one end of the air channel communicated with the second chamber 4 is an air outlet end.
The shell 1 is provided with a first interface 5, a second interface 6 and a third interface 7 which are communicated with the interior of the shell 1, wherein the first interface 5 is communicated with the first cavity 3, the first interface 5 is externally connected with an air blower, the second interface 6 and the third interface 7 are both communicated with the second cavity 4, the second interface 6 is externally connected with an air suction fan, and the third interface 7 is externally connected with a test wind tunnel; in this embodiment, the third interface 7 is externally connected with an elbow 14 so as to be convenient for installation and connection of the test wind tunnel.
A three-way pipe 8 is arranged in the second chamber 4, the three-way pipe 8 is provided with a first port 81, a second port 82 and a third port 83, the first port 81 is connected with the position of the air outlet end on the inner wall of the second chamber 4, so that the first port 81 of the three-way pipe 8 is communicated with the first chamber 3 through an air passage; the second port 82 is positioned in the second chamber 4, and the second port 82 can be communicated with the outside of the shell 1 through the second interface 6; the third port 83 is connected to the inner wall of the second chamber 4 at the location of the third port 7, so that the third port 83 of the tee 8 is in communication with the test wind tunnel via the third port 7.
Valves are arranged at the air inlet end and the third port 83 and are used for opening or closing the corresponding air inlet end or the third port 83; in this embodiment, the valve is composed of a piston, a cylinder 12 and a bracket 18; the piston B10 at the air inlet end can seal the air inlet end to prevent the first chamber 3 from communicating with the three-way pipe 8 through the first port 81, and the cylinder 12 corresponding to the piston B10 is transversely arranged in the first chamber 3 and is fixed on the partition plate 2 through the bracket 18; a piston a9 at the third port 83 may seal the third port 83 to prevent the tee 8 from communicating with the second chamber 4 through the third port 83;
in implementation, the third port 83 faces upward, an elongated fixing plate 13 is transversely disposed above the third port 83, a connecting hole (not shown in the figure) is formed in a position, corresponding to the third port 83, of the fixing plate 13, the fixing plate 13 is connected with the third port 83 in a sealing manner, the three-way pipe 8 is further fixed through the fixing plate 13, in addition, the connecting hole is matched with the size of the piston a9, and the piston a9 can move into the connecting hole under the driving of the cylinder 12, so that the piston a9 seals the third port 83.
When the test device is used, the first interface 5 is externally connected with an air blowing fan, the second interface 6 is externally connected with an air suction fan, and the third interface 7 is externally connected with a test wind tunnel; when the piston B10 is opened and the piston A9 is closed, the three-way pipe 8 is isolated from the second chamber 4, the three-way pipe 8 is communicated with the test wind tunnel through the third port 83 and the third connector 7, the three-way pipe 8 is communicated with the blowing fan through the first chamber 3 and the first connector 5, and at the moment, the air volume reversing device is in a blowing mode; when the piston B10 is closed and the piston A9 is opened, the three-way pipe 8 is isolated from the first chamber 3, the three-way pipe 8 is communicated with the air suction fan through the second chamber 4 and the second connector 6, the three-way pipe 8 is communicated with the test wind tunnel through the third port 83 and the third connector 7, and at the moment, the air volume reversing device is in an air suction mode; the mode of the air quantity reversing device can be adjusted by controlling the opening or closing of the piston A and the piston B10, the switching is quick and flexible, the mode switching does not need to manually adjust the position of a fan or the connection of an air duct, and the time consumption of testing and the labor intensity of workers can be reduced; in addition, the piston switching is intersected, the air channel connection is adjusted manually and frequently, and the test accuracy can be improved.
Further, a fourth port 15 is further formed in the housing 1, the fourth port 15 is communicated with the first chamber 3, a valve for opening or closing the fourth port 15 is also arranged at the fourth port 15, and the valve at the fourth port 15 includes a piston C11.
Like this, when using this amount of wind switching-over device, close fourth interface 15 through piston C11, make first chamber 3 only pass through first interface 5 and blower intercommunication, avoid gas leakage, when this amount of wind switching-over device is idle, open fourth interface 15 through piston C11, make first chamber 3 pass through fourth interface 15 and casing 1 outside intercommunication, make first chamber 3 keep unanimous with outside atmospheric pressure, avoid idle damage that arouses because of inside and outside atmospheric pressure is inconsistent.
Furthermore, a fifth port 16 is further formed in the housing 1, the fifth port 16 is communicated with the second chamber 4, the fifth port 16 is coaxial with the third port 83, the piston a9 can move vertically under the driving of the cylinder 12, and the piston a9 can seal the connecting hole in the fifth port 16 or the fixing plate 13.
Therefore, when the air volume reversing device is used, the piston A9 is used for closing the fifth interface 16, so that the second chamber 4 is communicated with the test wind tunnel only through the third interface 7, air leakage is avoided, when the air volume reversing device is stopped, the piston A9 is used for opening the fifth interface 16, so that the second chamber 4 is communicated with the outside of the shell 1 through the fifth interface 16, the second chamber 4 is kept consistent with the external air pressure, and damage caused by inconsistent internal and external air pressures during idling is avoided; the fifth interface 16 and the third interface 83 share one piston, so that the cost can be saved; when the air quantity reversing device works, the piston A9 can only stop at the connecting hole or the fifth interface 16, namely, the fifth interface 16 and the connecting hole can only be opened.
Furthermore, filter screens 17 are arranged at the fourth interface 15 and the fifth interface 16; therefore, dust or impurities can be prevented from entering the first chamber 3 and the second chamber 4 from the fourth interface 15 and the fifth interface 16 to affect the normal operation of the air volume reversing device.
In order to facilitate understanding of the air volume reversing device for the comprehensive performance test bed of the air conditioning system, the working principle of the air volume reversing device is explained as follows:
when an automobile air conditioning system or a part is tested, the testing wind tunnel is communicated with the third interface 7, the first interface 5 is communicated with the blowing fan, and the second interface 6 is communicated with the suction fan;
when the wind tunnel to be tested is in a blowing mode, closing the piston C11 to seal the fourth interface 15, opening the piston B10 to communicate the first chamber 3 with the three-way pipe 8, closing the piston A9 to seal the second port 82 of the three-way pipe 8, and at the moment, blowing out air flow from the blowing fan to enter the test wind tunnel through the first interface 5, the first chamber 3, the air passage, the three-way pipe 8 and the third interface 7 in sequence;
when the wind tunnel to be tested is in an air suction mode, the piston B10 is closed to separate the first chamber 3 from the three-way pipe 8, the piston A9 closes the fifth port 16, the second port 82 is opened, the three-way pipe 8 is communicated with the second chamber 4 through the second port 82, and at the moment, air flow is sucked out of the wind tunnel to enter an air suction fan through the third port 7, the three-way pipe 8, the second port 82, the second chamber 4 and the second port 6 in sequence;
when the air volume reversing device is idle, the piston A9 can be located between the fifth connector 16 and the connecting hole or seal the connecting hole, the second chamber 4 is communicated with the outside through the fifth connector 16, the piston B10 is opened, the first chamber 3 is communicated with the three-way pipe 8 through the air passage, the piston C11 is opened, the first chamber 3 is communicated with the outside through the fourth connector 15, at the moment, the air pressure inside and outside the air volume reversing device is consistent, and damage caused by inconsistent air pressure inside and outside the air volume reversing device within a long time of idle time can be avoided.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (8)
1. The utility model provides an air volume switching-over device for air conditioning system comprehensive properties test bench which characterized in that: the air-conditioning device comprises a shell, wherein a first cavity, a second cavity and an air passage are arranged in the shell, an air inlet end and an air outlet end are arranged at two ends of the air passage, the air inlet end is communicated with the first cavity, and the air outlet end is communicated with the second cavity;
the shell is provided with a first interface, a second interface and a third interface, the first interface is communicated with the first cavity and is externally connected with an air blowing fan, the second interface and the third interface are both communicated with the second cavity, the second interface is externally connected with an air suction fan, and the third interface is externally connected with a test wind tunnel;
a three-way pipe is arranged in the second chamber, the three-way pipe is provided with a first port, a second port and a third port, the first port is connected with the position of the air outlet end on the inner wall of the second chamber, the second port is positioned in the second chamber, and the third port is connected with the position of a third interface on the inner wall of the second chamber;
and valves are arranged at the air inlet end and the third port and are used for opening or closing the corresponding air inlet end or the third port.
2. The air volume reversing device for the comprehensive performance test bed of the air conditioning system according to claim 1, characterized in that: the valve comprises a piston and a cylinder, the telescopic end of the cylinder is connected with the piston, and the cylinder can drive the piston to move so as to open or close the corresponding air inlet end or the third port.
3. The air volume reversing device for the comprehensive performance test bed of the air conditioning system as claimed in claim 2, characterized in that: the shell is also provided with a fourth interface which is communicated with the first cavity, and the fourth interface is also provided with a valve for opening or closing the fourth interface.
4. The air volume reversing device for the comprehensive performance test bed of the air conditioning system according to claim 3, characterized in that: the shell is further provided with a fifth interface, the fifth interface is communicated with the second cavity and coaxial with the third port, and the piston at the third port can be driven by the cylinder to open or close the third port and the fifth interface.
5. The air volume reversing device for the comprehensive performance test bed of the air conditioning system according to claim 3, characterized in that: the shell is also provided with a fifth interface which is communicated with the second cavity, and the fifth interface is also provided with a valve for opening or closing the fifth interface.
6. The air volume reversing device for the comprehensive performance test bed of the air conditioning system according to claim 4, characterized in that: and filter screens are arranged at the fourth interface and the fifth interface.
7. The air volume reversing device for the comprehensive performance test bed of the air conditioning system according to claim 1, characterized in that: a partition plate is arranged in the shell to divide the inner part of the shell into a first cavity and a second cavity.
8. The air volume reversing device for the comprehensive performance test bed of the air conditioning system as claimed in claim 6, is characterized in that: the partition plate is provided with a through hole which penetrates through and communicates the first chamber and the first port to form the air passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210106924.4A CN114414266B (en) | 2022-01-28 | 2022-01-28 | Air quantity reversing device for comprehensive performance test bed of air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210106924.4A CN114414266B (en) | 2022-01-28 | 2022-01-28 | Air quantity reversing device for comprehensive performance test bed of air conditioning system |
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| CN114414266A true CN114414266A (en) | 2022-04-29 |
| CN114414266B CN114414266B (en) | 2023-07-07 |
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| CN114414266B (en) | 2023-07-07 |
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