CN114414266B - Air quantity reversing device for comprehensive performance test bed of air conditioning system - Google Patents
Air quantity reversing device for comprehensive performance test bed of air conditioning system Download PDFInfo
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- CN114414266B CN114414266B CN202210106924.4A CN202210106924A CN114414266B CN 114414266 B CN114414266 B CN 114414266B CN 202210106924 A CN202210106924 A CN 202210106924A CN 114414266 B CN114414266 B CN 114414266B
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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
Abstract
The invention relates to an air quantity reversing device for an air conditioning system comprehensive performance test bed, which comprises a shell, wherein the shell is internally provided with a first cavity, a second cavity and an air passage, the air inlet end of the air passage is communicated with the first cavity, and the air outlet end is communicated with the second cavity; the first interface of the shell is used for externally connecting a blowing fan, the second interface and the third interface are communicated with the second cavity, the second interface is used for externally connecting an induced draft fan, and the third interface is used for externally connecting a test wind tunnel; the first port of the three-way pipe in the second cavity is connected with the position where the air outlet end is positioned, the second port is positioned in the second cavity, and the third port is connected with the position where the third interface is positioned; valves are arranged at the air inlet end and the third port and used for opening or closing the corresponding air inlet end or the third port. The invention adjusts the mode of the air quantity reversing device through the valve, the switching is quick and flexible, the mode switching does not need to manually adjust the position of the fan or the connection of the air duct, and the testing time consumption and the manual labor intensity can be reduced.
Description
Technical Field
The invention belongs to the technical field of automobile testing, and particularly relates to an air quantity reversing device for an air conditioning system comprehensive performance test bed.
Background
The automobile air conditioning system is one of the large systems of the automobile, and has the main functions of cooling or heating the passenger cabin, ensuring the comfort of the passenger cabin, and mainly comprises main components such as a heating ventilation air conditioner, a condenser, a compressor, an air conditioning pipeline and the like, wherein 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 bench and the system-level matching test are required.
The comprehensive performance test bed for the automobile air conditioner is mainly used for testing the performance of a monomer and the matching of a system level of components of an automobile air conditioner system. When the monomer 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 are required to be set, and the air tunnel is in an air suction mode; however, when the system level matching test is performed, the air outlet temperature, the air outlet humidity and the air outlet volume are required to be set, and the wind tunnel is required to be in a blowing mode. The conventional 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; every time when carrying out different experiments, all must pass through personnel adjustment fan or connecting tube, not only consuming time, still lead to sealing inaccurately to cause the air leakage easily when adjusting the wind channel connection, and then lead to testing error. Chinese patent CN201320121412.1 discloses a real vehicle piping test system of a vehicle air conditioner comprehensive performance test room, and the scheme is used for testing the vehicle air conditioner, but mainly aims to solve the problem that the conventional test system cannot perform the real vehicle piping test.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the air quantity reversing device for the comprehensive performance test bed of the air conditioning system, solve the problems that the current comprehensive performance test bed of the automobile air conditioner is time-consuming in wind direction switching and easy to cause air leakage, and obtain the effects of simple wind direction switching and test accuracy improvement.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides an air quantity reversing device for air conditioning system comprehensive performance test bench, includes the casing, and the casing is inside to have first cavity and second cavity and air flue, and the both ends of air flue are inlet end and air outlet end, and inlet end communicates with first cavity, and the air outlet end communicates with 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, the first interface is used for being externally connected with a blowing fan, the second interface and the third interface are both communicated with the second cavity, the second interface is used for being externally connected with an induced draft fan, and the third interface is used for being externally connected with a test wind tunnel;
the second chamber is internally provided with a three-way pipe, 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 where the air outlet end on the inner wall of the second chamber is positioned, the second port is positioned in the second chamber, and the third port is connected with the position where the third interface on the inner wall of the second chamber is positioned;
valves are arranged at the air inlet end and the second port and used for opening or closing the corresponding air inlet end or the second port.
Further, 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 second port.
Further, a fourth interface is further formed in the shell and is communicated with the first cavity, and a valve for opening or closing the fourth interface is also arranged at the fourth interface.
Further, a fifth interface is further formed in the shell and is communicated with the second cavity, the fifth interface is coaxial with the second port, and the piston at the second port can open or close the second port and the fifth interface under the driving of the cylinder.
Further, a fifth interface is further formed in the shell and is communicated with the second cavity, and a valve for opening or closing the fifth interface is also arranged at the fifth interface.
Further, the fourth interface and the fifth interface are provided with filter screens.
Further, a partition is provided in the housing to divide the interior of the housing into a first chamber and a second chamber.
Further, a through hole penetrating through the first chamber and the first port 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 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 testing time consumption and the manual labor intensity can be reduced; in addition, the manual frequent adjustment of air duct connection during piston switching is more reliable, and the accuracy of testing can be improved.
2. When the air quantity reversing device is idle, the first cavity is communicated with the outside of the shell through the fourth interface, so that the first cavity is consistent with the external air pressure, and the second cavity is communicated with the outside of the shell through the fifth interface, so that the second cavity is consistent with the external air pressure, and the damage caused by inconsistent internal and external air pressures for a long time during the idle period can be avoided.
Drawings
FIG. 1 is a perspective view of an air volume reversing device for an air conditioning system comprehensive performance test stand according to an embodiment;
FIG. 2 is an internal structural diagram of an air volume reversing device for an air conditioning system comprehensive performance test stand 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 fixed plate 13, an elbow pipe 14, a fourth connector 15, a fifth connector 16, a filter screen 17 and a bracket 18.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
Examples:
referring to fig. 1-3, an air volume reversing device for an air conditioning system comprehensive performance test stand includes a casing 1, in this embodiment, the casing 1 is in a cuboid shape, a vertical partition board 2 is arranged inside the casing 1 to divide the interior of the casing 1 into a left cavity and a right cavity, the left cavity is a first cavity 3, the right cavity is a second cavity 4, through holes (not shown in the drawing) are formed in the partition board 2 in a left-right penetrating manner, two ends of the through holes are respectively communicated with air passages of the first cavity 3 and the second cavity 4, one end of the air passages, which is communicated with the first cavity 3, is an air inlet end, and one end of the air passages, which is communicated with the second cavity 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 inside of the shell 1, wherein the first interface 5 is communicated with the first cavity 3, the first interface 5 is used for externally connecting a blowing fan, the second interface 6 and the third interface 7 are communicated with the second cavity 4, the second interface 6 is used for externally connecting an induced draft fan, and the third interface 7 is used for externally connecting a test wind tunnel; in this embodiment, the third interface 7 is externally connected with an elbow 14 for installing and connecting the test wind tunnel.
The second chamber 4 is internally provided with a three-way pipe 8, 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 where the air outlet end on the inner wall of the second chamber 4 is positioned, 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 located 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 position of the third port 7, so that the third port 83 of the tee 8 communicates with the test wind tunnel through the third port 7.
Valves are arranged at the air inlet end and the second port 82 and are used for opening or closing the corresponding air inlet end or the second port 82; in this embodiment, the valve is composed of a piston, a cylinder 12 and a bracket 18; a piston B10 at the air inlet end can seal the air inlet end to prevent the first chamber 3 from being communicated with the three-way pipe 8 through the first port 81, and a cylinder 12 corresponding to the piston B10 is transversely arranged in the first chamber 3 and is fixed on the partition plate 2 through a bracket 18; piston A9 at second port 82 may seal third port 83 to prevent tee 8 from communicating with second chamber 4 through second port 82;
in implementation, the second port 82 faces upward, a long fixing plate 13 is transversely disposed above the second port 82, a connecting hole (not shown in the figure) is formed in a position of the fixing plate 13 corresponding to the second port 82, the fixing plate 13 is in sealing connection with the second port 82, the tee 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 second port 82.
When the invention is used, the first interface 5 is externally connected with a blowing fan, the second interface 6 is externally connected with an induced draft 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 port 7, the three-way pipe 8 is communicated with the blowing fan through the first chamber 3 and the first port 5, and at the moment, the air quantity 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 induced draft fan through the second chamber 4 and the second interface 6, the three-way pipe 8 is communicated with the test wind tunnel through the third port 83 and the third interface 7, and at the moment, the wind quantity reversing device is in an induced draft mode; the invention can adjust the mode of the air quantity reversing device 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 testing time consumption and the manual labor intensity can be reduced; in addition, the manual frequent adjustment of air duct connection during piston switching is more reliable, and the accuracy of testing can be improved.
Further, a fourth interface 15 is further provided on the housing 1, the fourth interface 15 is communicated with the first chamber 3, a valve for opening or closing the fourth interface 15 is also provided at the fourth interface 15, and the valve at the fourth interface 15 includes a piston C11.
Thus, when the air quantity reversing device is used, the fourth interface 15 is closed through the piston C11, so that the first chamber 3 is communicated with the blowing fan only through the first interface 5, air leakage is avoided, when the air quantity reversing device is idle, the fourth interface 15 is opened through the piston C11, the first chamber 3 is communicated with the outside of the shell 1 through the fourth interface 15, the first chamber 3 is consistent with the external air pressure, and damage caused by inconsistent internal and external air pressure during idle is avoided.
Further, the shell 1 is further provided with a fifth interface 16, the fifth interface 16 is communicated with the second chamber 4, the fifth interface 16 is coaxial with the second port 82, the piston A9 can vertically move under the driving of the cylinder 12, and the piston A9 can seal the fifth interface 16 or a connecting hole on the fixing plate 13.
Thus, when the air quantity reversing device is used, the fifth interface 16 is closed through the piston A9, 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 quantity reversing device is not used, the fifth interface 16 is opened through the piston A9, 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 consistent with the external air pressure, and damage caused by inconsistent internal and external air pressure during idle is avoided; the fifth interface 16 and the second port 82 share a piston, which can save cost; when the air volume 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.
Further, the fourth interface 15 and the fifth interface 16 are respectively provided with a filter screen 17; in this way, dust or sundries 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 influence the normal operation of the air volume reversing device.
In order to facilitate understanding of the air quantity reversing device for the comprehensive performance test bed of the air conditioning system, the working principle of the air quantity reversing device is described as follows:
when an automobile air conditioning system or a part is tested, the test wind tunnel is communicated with the third interface 7, the first interface 5 is communicated with a blowing fan, and the second interface 6 is communicated with an induced draft fan;
when the test wind tunnel is required to be in a blowing mode, the piston C11 is closed to seal the fourth interface 15, the piston B10 is opened to enable the first chamber 3 to be communicated with the three-way pipe 8, the piston A9 is closed to seal the second port 82 of the three-way pipe 8, and at the moment, air flow is blown out from the blowing fan and sequentially enters 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;
when the test wind tunnel is required to be 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 seals the fifth interface 16, the second port 82 is opened, the three-way pipe 8 is communicated with the second chamber 4 through the second port 82, at the moment, air flow is sucked out of the test wind tunnel and sequentially enters an air suction fan through the third interface 7, the three-way pipe 8, the second port 82, the second chamber 4 and the second interface 6;
when the air quantity reversing device is idle, the piston A9 can be positioned between the fifth interface 16 and the connecting hole or seal the connecting hole, the second chamber 4 is communicated with the outside through the fifth interface 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 interface 15, at the moment, the internal and external air pressures of the air quantity reversing device are consistent, and damage caused by inconsistent internal and external air pressures during the idle time can be avoided.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and 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 and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (7)
1. An air quantity reversing device for an air conditioning system comprehensive performance test bed is characterized in that: the device comprises a shell, wherein a first cavity, a second cavity and an air passage are formed in the shell, two ends of the air passage are an air inlet end and an air outlet end, 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, the first interface is used for being externally connected with a blowing fan, the second interface and the third interface are both communicated with the second cavity, the second interface is used for being externally connected with an induced draft fan, and the third interface is used for being externally connected with a test wind tunnel;
the second chamber is internally provided with a three-way pipe, 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 where the air outlet end on the inner wall of the second chamber is positioned, the second port is positioned in the second chamber, and the third port is connected with the position where the third interface on the inner wall of the second chamber is positioned;
valves are arranged at the air inlet end and the second port and are used for opening or closing the corresponding air inlet end or the second port;
the valve comprises a piston and a cylinder, the telescopic end of the cylinder is connected with the piston, and the cylinder drives the piston to move so as to open or close the corresponding air inlet end or the second port.
2. The air volume reversing device for an air conditioning system comprehensive performance test stand according to claim 1, wherein: the shell is also provided with a fourth interface which is communicated with the first cavity, and a valve for opening or closing the fourth interface is also arranged at the fourth interface.
3. The air volume reversing device for an air conditioning system comprehensive performance test stand according to claim 2, wherein: the shell is also provided with a fifth interface which is communicated with the second cavity, the fifth interface is coaxial with the second port, and the piston at the second port can open or close the second port and the fifth interface under the drive of the cylinder.
4. The air volume reversing device for an air conditioning system comprehensive performance test stand according to claim 2, wherein: the shell is also provided with a fifth interface which is communicated with the second cavity, and a valve for opening or closing the fifth interface is also arranged at the fifth interface.
5. The air volume reversing device for an air conditioning system comprehensive performance test stand according to claim 3, wherein: and the fourth interface and the fifth interface are provided with filter screens.
6. The air volume reversing device for an air conditioning system comprehensive performance test stand according to claim 1, wherein: a partition plate is arranged in the shell to divide the interior of the shell into a first cavity and a second cavity.
7. The air volume reversing device for an air conditioning system comprehensive performance test stand according to claim 6, wherein: the partition plate is provided with a through hole penetrating through 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 |
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| 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 CN114414266A (en) | 2022-04-29 |
| CN114414266B true CN114414266B (en) | 2023-07-07 |
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| CN114414266A (en) | 2022-04-29 |
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