CN-224229278-U - Electric control air valve, refrigerant switching device and air conditioning system

Abstract

The application discloses an electric control air valve, a refrigerant switching device and an air conditioning system, wherein the electric control air valve is arranged in a containing cavity of a shell of the refrigerant switching device, and comprises a driving piece and a wind shielding piece, wherein the driving piece is used for being connected with the wind shielding piece to drive the wind shielding piece to move relative to an air port along a preset direction, so that the wind shielding piece is switched between a first state and a second state, the wind shielding piece is used for being in contact with the shell to seal the air port in the first state, and the wind shielding piece is used for being arranged at intervals with the shell to open the air port in the second state. The design can realize that the driving piece drives the wind shielding piece to switch between a first state and a second state so as to regulate and control the opening and the closing of the air port, and in the first state, the wind shielding piece contacts with the shell to seal the air port, so that the air tightness of the accommodating cavity of the shell is good, and the normal operation of the refrigerant switching device is ensured. In addition, the driving piece drives the wind shielding piece to be in a direct pushing mode, the wind shielding piece is high in opening and closing efficiency of the wind gap, and leaked refrigerants can be discharged timely.

Inventors

• HUANG YUHUI
• YI TENGDA
• LUO TIANYUN
• XU AN

Assignees

• 合肥美的暖通设备有限公司
• 广东美的暖通设备有限公司

Dates

Publication Date

20260512

Application Date

20240628

Claims (14)

1. 1. An electrically controlled air valve, characterized in that it is used for being installed in the holding cavity of the shell of the refrigerant switching device, comprising: A driving member fixedly mounted on the housing of the refrigerant switching device, and The wind shielding piece is used for being arranged corresponding to the air port of the shell of the refrigerant switching device; the driving piece is used for being connected with the wind shielding piece to drive the wind shielding piece to move relative to the air opening along a preset direction, so that the wind shielding piece is switched between a first state and a second state, the wind shielding piece is used for being in contact with the shell to seal the air opening, and the wind shielding piece is used for being arranged at intervals with the shell to enable the air opening to be opened.
2. 2. The electrically controlled damper of claim 1, wherein said wind shield member comprises: A support part connected with the driving piece; And in the second state, the first elastic sealing part is used for abutting against the mounting inner wall surface of the shell of the refrigerant switching device so as to seal the air port.
3. 3. The electrically controlled damper of claim 1, wherein the electrically controlled damper includes a mounting bracket, the driving member being mounted to the mounting bracket and mounted to the housing of the refrigerant switching device via the mounting bracket; The mounting bracket is provided with a first matching part, the wind shielding piece is provided with a second matching part, the first matching part and the second matching part are matched to form a matching unit, and each matching unit is used for guiding the wind shielding piece to move along the preset direction.
4. 4. The electrically controlled air valve of claim 3, wherein the driving member has a driving rod with a central axis extending along the preset direction, and the air blocking member is arranged on the driving rod; In a direction perpendicular to the preset direction, the distance between each matching unit and the central axis of the driving rod is equal, and/or, Every two groups of the matching units are arranged in an axisymmetric way by the central shaft of the driving rod.
5. 5. The electrically controlled air valve of claim 3, wherein the mounting bracket comprises a main frame body, the main frame body is used for being mounted on a shell of the refrigerant switching device, the first matching part is fixedly mounted on the main frame body, one of the first matching part and the second matching part is a sleeve rod, the other is a sleeve, the sleeve rod extends along a preset direction, and the sleeve rod is sleeved on the periphery of the sleeve rod.
6. 6. The electrically controlled damper of claim 5, wherein the first mating portion is a stem and the second mating portion is a sleeve; The end part of the loop bar is used for being attached to the inner wall surface of the shell of the refrigerant switching device, or, The end part of the loop bar is used for being arranged at intervals with the inner wall surface of the shell of the refrigerant switching device, and the interval is smaller than the dimension of the sleeve in the preset direction.
7. 7. The electrically controlled damper of claim 1, wherein said actuator comprises: the motor is used for being fixedly arranged on the shell of the refrigerant switching device; the coupler is connected with the output end of the motor; the driving rod is a screw rod with a central shaft extending along the preset direction and is connected with the coupler; the nut is in threaded sleeve connection with the periphery of the screw rod and is connected with the wind shielding piece, so that when the motor starts to drive the coupler to operate to drive the screw rod to rotate around the central shaft of the screw rod, the wind shielding piece is driven to move in the preset direction.
8. 8. The electrically controlled air valve as set forth in claim 7, wherein said air shield has a mounting hole, said nut is provided in said mounting hole and fixedly mounted to said air shield, said screw is provided through said nut, and said screw end is provided to be fitted to a mounting inner wall surface of a housing of said refrigerant switching device.
9. 9. A refrigerant switching device, comprising: A housing having a receiving chamber and a tuyere communicating with the receiving chamber, and An electrically controlled damper as claimed in any one of claims 1 to 8 wherein said damper is located within said housing and mounted to said housing.
10. 10. The refrigerant switching device as set forth in claim 9, wherein said air inlet includes an air inlet and an air outlet, said air inlet and said air outlet being disposed opposite each other in said predetermined direction, at least one of said air inlet and said air outlet being provided with said electrically controlled damper.
11. 11. The refrigerant switching device according to claim 9, wherein the number of the air ports is plural, and in the first state, the wind shielding member is adapted to contact with the housing and close the plural air ports.
12. 12. The refrigerant switching device as set forth in claim 9, further comprising at least one exhaust duct, each of said exhaust ducts being mounted to an outer surface of said housing in correspondence with one of said tuyeres and being covered over said tuyeres for allowing gas to pass through said exhaust duct into and out of said receiving chamber.
13. 13. The refrigerant switching device as set forth in claim 12, wherein, The refrigerant switching device comprises a fan which is arranged in the exhaust pipeline to drive the gas in the accommodating cavity to enter and exit the accommodating cavity through the exhaust pipeline, or, The exhaust duct includes a docking port for communicating with a fan assembly of an air conditioning system to transfer airflow between the receiving chamber and the fan assembly.
14. 14. An air conditioning system comprising the refrigerant switching device according to any one of claims 9 to 13; The refrigerant leakage detection module is used for detecting the content of the refrigerant in the accommodating cavity and The electronic control module is in signal connection with the refrigerant leakage detection module and the driving piece and is used for controlling the driving piece to drive the wind shield piece to open the air port when the refrigerant content transmitted by the refrigerant leakage detection module is received and exceeds the preset content.

Description

Electric control air valve, refrigerant switching device and air conditioning system Technical Field The application relates to the technical field of air conditioners, in particular to an electric control air valve, a refrigerant switching device and an air conditioning system. Background In the related art, when the refrigerant leakage detection module in the air conditioner detects the refrigerant leaked by the refrigerant switching device, the air port of the shell of the refrigerant switching device needs to be opened to discharge the refrigerant. After the refrigerant is discharged, the air port of the refrigerant switching device is closed, so that water vapor is prevented from entering the inner space of the shell to form condensation on the device, and therefore, higher design requirements are provided for the sealing performance of the air port. Disclosure of utility model The embodiment of the application provides an electric control air valve, a refrigerant switching device and an air conditioning system, which can solve the problem of poor air port sealing performance of a shell of the refrigerant switching device. According to the first aspect, the embodiment of the application provides an electric control air valve, which is used for being installed in a containing cavity of a shell of a refrigerant switching device, and comprises a driving piece and a wind shielding piece, wherein the driving piece is used for being fixedly installed in the shell of the refrigerant switching device, the wind shielding piece is used for being arranged corresponding to an air port of the shell of the refrigerant switching device, the driving piece is used for being connected with the wind shielding piece to drive the wind shielding piece to move relative to the air port along a preset direction so as to enable the wind shielding piece to be switched between a first state and a second state, the wind shielding piece is used for being in contact with the shell to seal the air port, and the wind shielding piece is used for being arranged at intervals with the shell to enable the air port to be opened. In some embodiments, the wind shielding piece comprises a supporting part and a first elastic sealing part, the supporting part is connected with the driving piece, the first elastic sealing part is connected with the supporting part, and in the second state, the first elastic sealing part is used for abutting against the mounting inner wall surface of the shell of the refrigerant switching device so as to seal the wind gap. In some embodiments, the electrically controlled damper comprises a mounting bracket, and the driving member is mounted on the mounting bracket and is mounted on the housing of the refrigerant switching device through the mounting bracket; The installing support has first cooperation portion, and the piece of keeping out the wind has second cooperation portion, and first cooperation portion cooperates with second cooperation portion and forms a cooperation unit, and each cooperation unit is used for guiding the piece of keeping out the wind to remove along predetermineeing the direction. In some embodiments, the driving piece is provided with a driving rod with a central shaft extending along a preset direction, and the wind shielding piece is arranged on the driving rod; In a direction perpendicular to the preset direction, the spacing of the respective mating units from the central axis of the drive rod is equal, and/or, Every two groups of matching units are arranged in an axisymmetric way by the central shaft of the driving rod. In some embodiments, the mounting bracket comprises a main bracket body, the main bracket body is used for being mounted on a shell of the refrigerant switching device, the first matching part is fixedly mounted on the main bracket body, one of the first matching part and the second matching part is a sleeve rod, the other is a sleeve, the sleeve rod extends along a preset direction, and the sleeve is sleeved on the periphery of the sleeve rod. In some of these embodiments, the first mating portion is a loop bar and the second mating portion is a sleeve; The end of the loop bar is used for being attached to the inner wall surface of the shell of the refrigerant switching device, or, The end part of the loop bar is used for being arranged at intervals with the installation inner wall surface of the shell of the refrigerant switching device, and the interval is smaller than the dimension of the sleeve in the preset direction. In some embodiments, the driving member comprises a motor, a shaft coupling, a driving rod and a nut, wherein the motor is fixedly arranged on a shell of the refrigerant switching device, the shaft coupling is connected with an output end of the motor, the driving rod is a screw rod with a central shaft extending along a preset direction and is connected with the shaft coupling, the nut is in threaded sleeve connection with the periphery of the sc