Circuit valve and air conditioner

Abstract

The application provides a circuit valve and an air conditioner, and relates to the technical field of air conditioners. The circuit valve comprises a shell and a sliding piece, the shell is provided with a first inlet, a second inlet, an outlet and a connecting port, and the sliding piece is movably arranged in the shell; under the condition that fluid enters the shell from the first inlet, the sliding piece slides away from the first inlet relative to the shell, so that the first inlet is communicated with the outlet and the second inlet is communicated with the connecting port; under the condition that fluid enters the shell from the second inlet, the sliding piece slides away from the second inlet relative to the shell, so that the second inlet is communicated with the outlet and the first inlet is communicated with the connecting port. Whether the fluid enters the shell from the first inlet or the second inlet, the fluid can flow out from the outlet, the fluid can always flow out from the same outlet, one circuit valve is adopted, the number of parts is reduced, the number of pipes is also reduced accordingly, the cost is reduced, and the risk of assembly error is also reduced.

Description

Technical Field

[0001] This invention relates to the field of air conditioner technology, and more specifically, to a circuit valve and an air conditioner. Background Technology

[0002] In heat pump equipment such as air conditioners and coolers, air conditioners use four-way valves to reverse the flow of refrigerant. However, in some circuits, regardless of cooling or heating conditions, the refrigerant needs to flow to the same location. In existing technology, multiple one-way valves are usually used to form a check valve combination to bridge the corresponding circuit. However, using a check valve combination composed of multiple one-way valves in air conditioners complicates the refrigerant circuit, increases the number of pipes, complicates assembly, and increases the likelihood of errors during assembly. Summary of the Invention

[0003] The problem this invention addresses is how to reduce the number of parts and pipes, reduce costs, and also reduce the risk of assembly errors.

[0004] To solve the above problems, the present invention provides a circuit valve and an air conditioner.

[0005] In a first aspect, embodiments of the present invention provide a loop valve, the loop valve including a housing and a sliding member, the housing having a first inlet, a second inlet, an outlet and a connection port, and the sliding member being movably disposed within the housing;

[0006] When fluid enters the housing from the first inlet, the sliding member slides away from the first inlet relative to the housing, so that the first inlet is connected to the outlet and the second inlet is connected to the connection port;

[0007] When fluid enters the housing from the second inlet, the sliding member slides away from the second inlet relative to the housing, making the second inlet connected to the outlet, and the first inlet connected to the connection port.

[0008] The sliding component is movably positioned within the housing. When fluid enters the housing through the first inlet, the first inlet is connected to the outlet, and the second inlet is connected to the connection port. Conversely, when fluid enters the housing through the second inlet, the second inlet is connected to the outlet, and the first inlet is connected to the connection port. This means that regardless of whether the fluid enters the housing through the first or second inlet, it can always exit through the outlet, ensuring that the fluid always flows out from the same outlet. The use of a single loop valve reduces the number of parts and piping, lowering costs and reducing the risk of assembly errors.

[0009] In an optional embodiment of the present invention, the sliding member includes a first connecting member, a second connecting member, and a movable member. The first connecting member and the second connecting member are respectively connected to both ends of the movable member. The first connecting member is disposed near the first inlet, and the second connecting member is disposed near the second inlet. The circuit valve further includes a stop member, which is installed inside the housing.

[0010] When fluid enters the housing from the first inlet, the sliding part slides away from the first inlet relative to the housing, and when the first connector and the stop abut against each other, the first inlet is connected to the outlet and the second inlet is connected to the connection port.

[0011] When fluid enters the housing from the second inlet, the sliding part slides away from the second inlet relative to the housing, and when the second connector abuts against the stop, the second inlet is connected to the outlet, and the first inlet is connected to the connection port.

[0012] In an optional embodiment of the present invention, the first connector has a first connection port and a second connection port. The first connection port is disposed near the connection port, and the second connection port is disposed near the outlet. When fluid enters the housing from the first inlet, the stop member blocks the first connection port. The first inlet is connected to the outlet through the second connection port. When fluid enters the housing from the second inlet, the connection port is connected to the first inlet through the first connection port.

[0013] In an optional embodiment of the present invention, the stop member has a sliding channel, the movable member is disposed in the sliding channel, the first connector includes a first connecting part and a first stop part that are connected to each other, the first stop part is slidably connected to the housing, the first connecting part can extend into the sliding channel, and the first connecting port and the second connecting port are disposed on the first connecting part.

[0014] In an optional embodiment of the present invention, a first sliding surface is provided on the first connecting part, and a first guide surface is provided in the sliding channel. The first sliding surface can slide along the first guide surface, so that the first connecting part extends into the sliding channel, and the stop member can block the first connecting port.

[0015] In an optional embodiment of the present invention, the second connector has a third connection port and a fourth connection port. The third connection port is disposed near the connection port, and the fourth connection port is disposed near the outlet. When fluid enters the housing from the first inlet, the stop member blocks the third connection port, and the first inlet and the fourth connection port are connected to the outlet. When fluid enters the housing from the second inlet, the connection port is connected to the first inlet through the third connection port.

[0016] In an optional embodiment of the present invention, the stop member has a sliding channel, the movable member is disposed in the sliding channel, the second connecting member includes a second connecting part and a second stop part that are connected to each other, the second stop part is slidably connected to the housing, the second connecting part can extend into the sliding channel, and the third connecting port and the fourth connecting port are disposed on the second connecting part.

[0017] In an optional embodiment of the present invention, a second sliding surface is provided on the second connecting part, and a second guide surface is provided in the sliding channel. The second sliding surface can slide along the second guide surface, so that the second connecting part extends into the sliding channel, and the stop member can block the third connecting port.

[0018] In an optional embodiment of the present invention, the stop member has a sliding channel, the movable member includes a movable rod and a movable plug, the movable rod and the movable plug are disposed in the sliding channel, the movable plug is sleeved on the movable rod, one end of the movable rod is connected to the first connecting member, and the other end is connected to the second connecting member, the movable plug is slidably engaged with the sliding channel, under the condition that the fluid enters into the housing from the first inlet, the movable plug blocks the outlet and the second inlet, under the condition that the fluid enters into the housing from the second inlet, the movable plug blocks the outlet and the first inlet.

[0019] In an optional embodiment of the present invention, the movable plug is provided with a communication port near the connection port. When the first inlet of fluid enters the housing, the connection port communicates with the second inlet through the communication port. When the second inlet of fluid enters the housing, the connection port communicates with the first inlet through the communication port.

[0020] In an optional embodiment of the present invention, the stop member has a sliding channel, the movable member is disposed in the sliding channel, the stop member has a first transition port and a second transition port, the outlet communicates with the sliding channel through the first transition port, and the connection port communicates with the sliding channel through the second transition port.

[0021] Secondly, embodiments of the present invention provide an air conditioner, the air conditioner including the circuit valve provided in the first embodiment. Attached Figure Description

[0022] Figure 1 This is an exploded view of the circuit valve provided in the first embodiment of the present invention.

[0023] Figure 2 This is a cross-sectional view of the circuit valve provided in the first embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the moving part of the sliding component of the circuit valve provided in the first embodiment of the present invention.

[0025] Figure 4 The circuit valve provided in the first embodiment of the present invention is in Figure 2 A magnified view of section IV in the middle.

[0026] Figure 5 The circuit valve provided in the first embodiment of the present invention is in Figure 2 A magnified view of the middle V section.

[0027] Figure 6 A cross-sectional view of the circuit valve fluid entering the housing from the first inlet, as provided in the first embodiment of the present invention.

[0028] Figure 7 A cross-sectional view of the circuit valve fluid entering the housing from the second inlet, provided in the first embodiment of the present invention.

[0029] Figure 8 This is a schematic diagram of the structure of an air conditioner provided in the second embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100 - Circuit valve; 110 - Housing; 112 - First inlet; 114 - Second inlet; 116 - Outlet; 118 - Connection port; 120 - Sliding member; 122 - First connecting member; 1221 - First connection port; 1223 - Second connection port; 1225 - First connecting part; 1227 - First stop part; 1229 - First sliding surface; 124 - Second connecting member; 1241 - Third connection port; 1243 - Fourth connection port; 1245 - Second connecting part; 1247 - Second stop part; 1249 - Second sliding surface; 126 - Moving part; 1262 - Moving rod; 126 4-Moving plug; 1266-Connecting port; 130-Stop; 131-First transition port; 132-Second transition port; 133-Sliding channel; 134-First guide surface; 136-Second guide surface; 200-Air conditioner; 210-Compressor; 212-Air inlet; 214-Air outlet; 216-Enthalpy injection port; 220-Four-way valve; 221-First valve port; 223-Second valve port; 225-Third valve port; 227-Fourth valve port; 230-Outdoor heat exchanger; 240-Indoor heat exchanger; 250-Water heat exchanger; 280-Secondary expansion valve; 290-Main expansion valve. Detailed Implementation

[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] First Embodiment

[0034] Please see Figure 1 This embodiment provides a loop valve 100, which can reduce the number of parts and the number of pipes, thereby reducing costs and the risk of assembly errors.

[0035] The loop valve 100 provided in this embodiment is applied in heat pump equipment such as air conditioners 200 and coolers. Air conditioner 200 uses a four-way valve 220 to reverse the flow of refrigerant. However, in some circuits, regardless of cooling or heating conditions, the refrigerant needs to flow to the same location. In existing technology, multiple one-way valves are typically used to form a check valve combination to bridge the corresponding circuit. However, using a check valve combination composed of multiple one-way valves in air conditioner 200 complicates the refrigerant circuit, increases the number of pipes, and complicates assembly, making errors more likely during assembly. The loop valve 100 provided in this embodiment solves the above problems, ensuring that the refrigerant always flows out from the same outlet 116 after refrigerant reversal. By using a single loop valve 100, the number of parts and pipes is reduced, lowering costs and reducing the risk of assembly errors.

[0036] In this embodiment, the loop valve 100 includes a housing 110 and a sliding member 120. The housing 110 has a first inlet 112, a second inlet 114, an outlet 116, and a connection port 118. The sliding member 120 is movably disposed within the housing 110. When fluid enters the housing 110 from the first inlet 112, the sliding member 120 slides away from the housing 110 from the first inlet 112, so that the first inlet 112 is connected to the outlet 116 and the second inlet 114 is connected to the connection port 118. When fluid enters the housing 110 from the second inlet 114, the sliding member 120 slides away from the housing 110 from the second inlet 114, so that the second inlet 114 is connected to the outlet 116 and the first inlet 112 is connected to the connection port 118.

[0037] In this embodiment, the sliding member 120 is movably disposed within the housing 110. When fluid enters the housing 110 through the first inlet 112, the first inlet 112 is connected to the outlet 116, and the second inlet 114 is connected to the connection port 118. When fluid enters the housing 110 through the second inlet 114, the second inlet 114 is connected to the outlet 116, and the first inlet 112 is connected to the connection port 118. That is, regardless of whether the fluid enters the housing 110 through the first inlet 112 or the second inlet 114, it can flow out through the outlet 116, ensuring that the fluid always flows out from the same outlet 116. The use of a single loop valve 100 reduces the number of parts and piping, lowering costs and reducing the risk of assembly errors.

[0038] Furthermore, in this embodiment, when fluid enters the housing 110 from the first inlet 112, the fluid pressure causes the sliding member 120 to slide away from the first inlet 112, connecting the first inlet 112 to the outlet 116 and the connection port 118 to the second inlet 114. Similarly, when fluid enters the housing 110 from the second inlet 114, the fluid pressure causes the sliding member 120 to slide away from the second inlet 114, connecting the second inlet 114 to the outlet 116 and the first inlet 112 to the connection port 118. In this embodiment, the movement of the sliding member 120 can be achieved by the pressure of the fluid, without the need for additional power or control to achieve the switching of the sliding member 120. The movement of the sliding member 120 and the switching of the valve port can be achieved without additional operation, making the operation simple and convenient.

[0039] In this embodiment, the housing 110 is elongated, with the first inlet 112 and the second inlet 114 located at both ends of the housing 110, and the outlet 116 and the connection port 118 located on the side wall of the housing 110.

[0040] In this embodiment, the sliding member 120 includes a first connecting member 122, a second connecting member 124, and a movable member 126. The first connecting member 122 and the second connecting member 124 are respectively connected to both ends of the movable member 126. The first connecting member 122 is disposed near the first inlet 112, and the second connecting member 124 is disposed near the second inlet 114. The circuit valve 100 also includes a stop member 130, which is installed inside the housing 110.

[0041] When fluid enters the housing 110 from the first inlet 112, the sliding part slides away from the first inlet 112 relative to the housing 110, and when the first connector 122 and the stop 130 abut against each other, the first inlet 112 and the outlet 116 are connected, and the second inlet 114 and the connection port 118 are connected.

[0042] When fluid enters the housing 110 from the second inlet 114, the sliding part slides away from the second inlet 114 relative to the housing 110. Under the condition that the second connector 124 and the stop 130 abut against each other, the second inlet 114 and the outlet 116 are connected, and the first inlet 112 and the connection port 118 are connected.

[0043] In this embodiment, when fluid enters the interior of housing 110 from the first inlet 112, the slider 120 slides away from the first inlet 112 inside housing 110. When the first connector 122 slides to abut against the stop 130, it indicates that the slider 120 has slid into place. At this time, the first inlet 112 is connected to the outlet 116, and the second inlet 114 is connected to the connection port 118.

[0044] Similarly, when fluid enters the interior of housing 110 from the second inlet 114, the sliding member 120 slides away from the second inlet 114 inside housing 110. When the second connecting member 124 slides to abut against the stop member 130, it indicates that the sliding member 120 has slid into place. At this time, the second inlet 114 is connected to the outlet 116, and the first inlet 112 is connected to the connection port 118.

[0045] Please see Figure 2 In this embodiment, the stop member 130 has a sliding channel 133, the movable member 126 is disposed in the sliding channel 133, the stop member 130 has a first transition port 131 and a second transition port 132, the outlet 116 is connected to the sliding channel 133 through the first transition port 131, and the connection port 118 is connected to the sliding channel 133 through the second transition port 132.

[0046] The movable component 126 is disposed within the sliding channel 133 and can slide within the sliding channel 133. The first connecting component 122 is disposed between the first inlet 112 and the stop component 130, and the second connecting component 124 is disposed between the second inlet 114 and the stop component 130. The first transition port 131 and the outlet 116 are concentrically disposed, and the second transition port 132 and the connecting port 118 are concentrically disposed.

[0047] In other words, when the fluid enters the housing 110 from the first inlet 112, the fluid path is as follows: it enters the housing 110 from the first inlet 112, enters the sliding channel 133, passes through the first transition port 131 and is discharged from the outlet 116, then enters the sliding channel 133 from the connection port 118 and the second transition port 132 and is finally discharged from the second inlet 114.

[0048] When fluid enters the housing 110 through the second inlet 114, the fluid path is as follows: it enters the housing 110 through the second inlet 114, then enters the sliding channel 133, passes through the first transition port 131, and exits from the outlet 116. It then enters the sliding channel 133 through the connection port 118 and the second transition port 132, and finally exits from the first inlet 112.

[0049] Please see Figure 3 In this embodiment, the movable component 126 includes a movable rod 1262 and a movable plug 1264. The movable rod 1262 and the movable plug 1264 are disposed in the sliding channel 133. The movable plug 1264 is sleeved on the movable rod 1262. One end of the movable rod 1262 is connected to the first connecting member 122, and the other end is connected to the second connecting member 124. The movable plug 1264 is slidably engaged with the sliding channel 133. When fluid enters the housing 110 from the first inlet 112, the movable plug 1264 blocks the outlet 116 and the second inlet 114. When fluid enters the housing 110 from the second inlet 114, the movable plug 1264 blocks the outlet 116 and the first inlet 112.

[0050] In this embodiment, the movable plug 1264 is slidably engaged with the sliding channel 133, and the movable plug 1264 slides near the outlet 116. The movable plug 1264 can slide between the outlet 116 and the first inlet 112, or between the outlet 116 and the second inlet 114. When fluid enters the housing 110 from the first inlet 112, under the pressure of the fluid, the entire sliding member 120 moves away from the first inlet 112, causing the movable plug 1264 to slide between the outlet 116 and the second inlet 114, thus blocking the outlet 116 and the second inlet 114. After the fluid enters the sliding channel 133 from the first inlet 112, it can flow out from the outlet 116 due to the obstruction of the movable plug 1264, preventing the fluid from entering the sliding channel 133 and flowing out from the second inlet 114. In other words, after the fluid enters the housing 110 from the first inlet 112, it enters the sliding channel 133. The movable plug 1264 blocks the second inlet 114 and the outlet 116, allowing the fluid to flow out from the outlet 116.

[0051] Similarly, when fluid enters the housing 110 through the second inlet 114, under the pressure of the fluid, the entire sliding member 120 moves away from the second inlet 114. The movable plug 1264 slides between the outlet 116 and the first inlet 112, blocking the connection between the outlet 116 and the first inlet 112. After the fluid enters the sliding channel 133 through the first inlet 112, it flows out through the outlet 116 due to the obstruction of the movable plug 1264, preventing the fluid from entering the sliding channel 133 and then flowing out through the second inlet 114. In other words, after the fluid enters the housing 110 through the second inlet 114 and then the sliding channel 133, the movable plug 1264 blocks the first inlet 112 and the outlet 116, allowing the fluid to flow out through the outlet 116.

[0052] To further improve the sealing effect of the movable plug 1264, a sealing ring is fitted onto the movable plug 1264. The sealing ring abuts against the inner wall of the sliding channel 133. During the sliding process of the movable plug 1264 relative to the sliding channel 133, it can play a sealing role, reducing leakage of fluid from the first inlet 112 into the housing 110 and then from the second inlet 114. Alternatively, it can reduce leakage of fluid from the second inlet 114 into the housing 110 and then from the first inlet 112.

[0053] In this embodiment, the movable plug 1264 is provided with a communication port 1266 near the connection port 118. When the first fluid inlet 112 enters into the housing 110, the connection port 118 communicates with the second inlet 114 through the communication port 1266. When the second fluid inlet 114 enters into the housing 110, the connection port 118 communicates with the first inlet 112 through the communication port 1266.

[0054] Since the connection port 118 and the outlet 116 are coaxially arranged, when the fluid enters the housing 110 from the first inlet 112, the movable plug 1264 slides between the outlet 116 and the second inlet 114, and also slides between the connection port 118 and the second inlet 114. In order to enable the connection port 118 to communicate with the second inlet 114, a connecting port 1266 is provided on the movable plug 1264, so that the second inlet 114 can communicate with the connection port 118 through the connecting port 1266.

[0055] Similarly, when fluid enters the housing 110 from the second inlet 114, the movable plug 1264 slides between the outlet 116 and the first inlet 112, that is, between the connection port 118 and the first inlet 112. In order to enable the connection port 118 to communicate with the first inlet 112, a communication port 1266 is provided on the movable plug 1264 so that the first inlet 112 can communicate with the connection port 118 through the communication port 1266.

[0056] Please see Figure 4 In this embodiment, the first connector 122 has a first connection port 1221 and a second connection port 1223. The first connection port 1221 is located near the connection port 118, and the second connection port 1223 is located near the outlet 116. When fluid enters the housing 110 from the first inlet 112, the stop member 130 blocks the first connection port 1221, and the first inlet 112 is connected to the outlet 116 through the second connection port 1223. When fluid enters the housing 110 from the second inlet 114, the connection port 118 is connected to the first inlet 112 through the first connection port 1221.

[0057] In this embodiment, when fluid enters the housing 110 from the first inlet 112, under the action of fluid pressure, the entire sliding member 120 moves towards the second inlet 114. The movable plug 1264 slides between the outlet 116 and the second inlet 114. The first connecting member 122 slides to abut against the stop member 130, which blocks the first connection port 1221, allowing fluid to enter the sliding channel 133 from the second connection port 1223 and flow out from the outlet 116. Fluid then enters the sliding channel 133 again from the connection port 118. Since the stop member 130 blocks the first connection port 1221, the fluid flows out from the second inlet 114 through the connecting port 1266.

[0058] With fluid entering the housing 110 through the second inlet 114, under the action of fluid pressure, the entire sliding member 120 moves towards the first inlet 112. The movable plug 1264 slides between the outlet 116 and the first inlet 112, isolating the second inlet 114 from the second connection port 1223, thus connecting the second inlet 114 to the outlet 116. After entering the housing 110 through the second inlet 114, the fluid flows out from the outlet 116. It then enters the sliding channel 133 again through the connection port 118, passes through the connecting port 1266 and the first connection port 1221, and flows out from the first inlet 112.

[0059] In this embodiment, the first connector 122 includes a first connecting portion 1225 and a first stop portion 1227 that are connected to each other. The first stop portion 1227 is slidably connected to the housing 110. The first connecting portion 1225 can extend into the sliding channel 133. The first connection port 1221 and the second connection port 1223 are disposed on the first stop portion 1227.

[0060] In this embodiment, the first stop portion 1227 protrudes from the first connecting portion 1225. As the first connecting member 122 slides away from the first inlet 112 relative to the housing 110, the first connecting portion 1225 gradually extends into the sliding channel 133 until the first stop portion 1227 abuts against the stop member 130, blocking the first connecting port 1221.

[0061] In this embodiment, a first sliding surface 1229 is provided on the first connecting part 1225, and a first guide surface 134 is provided in the sliding channel 133. The first sliding surface 1229 can slide along the first guide surface 134, so that the first connecting part 1225 extends into the sliding channel 133, and the stop member 130 can block the first connecting port 1221.

[0062] The cross-sections of the first sliding surface 1229 and the first guide surface 134 are both inclined. As the first connecting part 1225 gradually extends into the sliding channel 133, the entire sliding member 120 can slide smoothly, and the first stop part 1227 can quickly abut against the stop member 130.

[0063] Please see Figure 5In this embodiment, the second connector 124 has a third connector 1241 and a fourth connector 1243. The third connector 1241 is located near the connector 118, and the fourth connector 1243 is located near the outlet 116. When fluid enters the housing 110 from the first inlet 112, the stop member 130 blocks the third connector 1241, and the first inlet 112, the fourth connector 1243 and the outlet 116 are connected. When fluid enters the housing 110 from the second inlet 114, the connector 118 is connected to the first inlet 112 through the third connector 1241.

[0064] In this embodiment, when fluid enters the housing 110 from the second inlet 114, under the action of fluid pressure, the entire sliding member 120 moves towards the first inlet 112. The movable plug 1264 slides between the outlet 116 and the first inlet 112. The second connector 124 slides to abut against the stop member 130, which blocks the third connection port 1241, allowing fluid to enter the sliding channel 133 from the fourth connection port 1243 and flow out from the outlet 116. Fluid then enters the sliding channel 133 again from the connection port 118. Since the stop member 130 blocks the third connection port 1241, the fluid flows out from the first inlet 112 through the connecting port 1266.

[0065] When fluid enters the housing 110 through the first inlet 112, under the action of fluid pressure, the entire sliding member 120 moves towards the second inlet 114. The movable plug 1264 slides between the outlet 116 and the second inlet 114, isolating the second inlet 114 from the fourth connection port 1243, thus connecting the second inlet 114 to the outlet 116. After entering the housing 110 through the second inlet 114, the fluid flows out through the outlet 116. It then enters the sliding channel 133 again through the connection port 118, passes through the connecting port 1266 and the third connection port 1241, and flows out through the second inlet 114.

[0066] In this embodiment, the stop member 130 has a sliding channel 133, the movable member 126 is disposed in the sliding channel 133, the second connector 124 includes a second connecting part 1245 and a second stop part 1247 connected to each other, the second stop part 1247 is slidably connected to the housing 110, the second connecting part 1245 can extend into the sliding channel 133, and the third connecting port 1241 and the fourth connecting port 1243 are disposed on the second connecting part 1245.

[0067] In this embodiment, the second stop portion 1247 protrudes from the second connecting portion 1245. As the second connecting member 124 slides away from the second inlet 114 relative to the housing 110, the second connecting portion 1245 gradually extends into the sliding channel 133 until the second stop portion 1247 abuts against the stop member 130, blocking the second connecting port 1223.

[0068] In this embodiment, a second sliding surface 1249 is provided on the second connecting part 1245, and a second guide surface 136 is provided in the sliding channel 133. The second sliding surface 1249 can slide along the second guide surface 136, so that the second connecting part 1245 extends into the sliding channel 133, and the stop member 130 can block the third connecting port 1241.

[0069] The cross-sections of the second sliding surface 1249 and the second guide surface 136 are both inclined. As the second connecting part 1245 gradually extends into the sliding channel 133, the entire sliding member 120 can slide smoothly, and the second stop part 1247 can quickly abut against the stop member 130.

[0070] Please see Figure 6 The working principle of the circuit valve 100 provided in this embodiment is as follows: In this embodiment, please refer to... Figure 6 When fluid enters the housing 110 through the first inlet 112, the entire sliding member 120 slides away from the first inlet 112. The first connecting part 1225 gradually slides into the sliding channel 133. The first stop part 1227 abuts against the stop member 130, which seals the first connecting port 1221. The movable plug 1264 slides between the outlet 116 and the second inlet 114, isolating the outlet 116 from the fourth connecting port 1243. The third connecting port 1241 communicates with the sliding channel 133. After entering the housing 110 through the first inlet 112, the fluid enters the sliding channel 133 through the second connecting port 1223 and flows out from the outlet 116. It then enters the sliding channel 133 again through the connecting port 118 and, after passing through the connecting port 1266 and the third connecting port 1241, is discharged from the second inlet 114.

[0071] Please see Figure 7When fluid enters the housing 110 through the second inlet 114, the entire sliding member 120 slides away from the second inlet 114. The first connecting part 1225 gradually slides into the sliding channel 133. The second stop part 1247 abuts against the stop member 130, and the stop member 130 seals the third connecting port 1241. The movable plug 1264 slides between the outlet 116 and the first inlet 112, and isolates the outlet 116 from the second connecting port 1223. The first connecting port 1221 communicates with the sliding channel 133. After the fluid enters the housing 110 through the second inlet 114, it enters the sliding channel 133 through the fourth connecting port 1243 and flows out from the outlet 116. It then enters the sliding channel 133 again through the connecting port 118, and after passing through the connecting port 118 and the first connecting port 1221, it is discharged from the first inlet 112.

[0072] In summary, the loop valve 100 provided in this embodiment has a sliding member 120 movably disposed within the housing 110. When fluid enters the housing 110 through the first inlet 112, the first inlet 112 is connected to the outlet 116, and the second inlet 114 is connected to the connection port 118. When fluid enters the housing 110 through the second inlet 114, the second inlet 114 is connected to the outlet 116, and the first inlet 112 is connected to the connection port 118. That is, regardless of whether the fluid enters the housing 110 through the first inlet 112 or the second inlet 114, it can flow out through the outlet 116, ensuring that the fluid always flows out from the same outlet 116. Using a single loop valve 100 reduces the number of parts and piping, lowering costs and reducing the risk of assembly errors.

[0073] Second Embodiment

[0074] This embodiment provides an air conditioner 200, which can reduce the number of parts and the number of pipes, thereby reducing costs and the risk of assembly errors.

[0075] For the sake of brevity, any parts not mentioned in this embodiment can be referred to in the first embodiment.

[0076] Please see Figure 8In another embodiment of the present invention, the air conditioner 200 includes a compressor 210, a four-way valve 220, an outdoor heat exchanger 230, an indoor heat exchanger 240, a water heat exchanger 250, a main expansion valve 290, a secondary expansion valve 280, and a circuit valve 100. The compressor 210 is connected to the four-way valve 220, which has a first valve port 221, a second valve port 223, a third valve port 225, and a fourth valve port 227. The first valve port 221 is connected to the air outlet 214 of the compressor 210, and the second valve port 223 is connected to the air outlet 214 of the compressor 210. Port 223 is connected to the air inlet 212 of compressor 210. The third valve port 225 is connected to the second inlet 114 through water heat exchanger 250. The fourth valve port 227 is connected to one end of outdoor heat exchanger 230. The end of outdoor heat exchanger 230 away from the fourth valve port 227 is connected to the first inlet 112. The outlet 116 is connected to indoor heat exchanger 240. The compressor injection enthalpy port 216 is connected to indoor heat exchanger 240 through auxiliary expansion valve 280. The connection port 118 is connected to main expansion valve 290.

[0077] In heating mode, the first valve port 221 is connected to the third valve port 225, and the heat exchange medium enters the housing 110 from the second inlet 114 and flows into the secondary expansion valve 280 from the outlet 116. In cooling mode, the first valve port 221 is connected to the fourth valve port 227, and the heat exchange medium enters the housing 110 from the first inlet 112 and flows into the secondary expansion valve 280 from the outlet 116. Regardless of whether liquid is introduced through the first inlet 112 or the second inlet 114, the heat exchange medium first enters the indoor heat exchanger 240. Further, the heat exchange medium ejected from the enthalpy injection port 216 passes through the secondary expansion valve 280 and enters the indoor heat exchanger 240 for heat exchange.

[0078] In this embodiment, the compressor 210 has two injection ports, an air outlet 214 and an enthalpy injection port 216, which can perform secondary compression on the heat exchange medium, greatly improving the heat exchange efficiency of the compressor 210.

[0079] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A loop valve (100), characterized in that, The circuit valve (100) includes a housing (110) and a sliding member (120). The housing (110) has a first inlet (112), a second inlet (114), an outlet (116), and a connection port (118). The sliding member (120) is movably disposed within the housing (110). When fluid enters the housing (110) from the first inlet (112), the sliding member (120) slides away from the first inlet (112) relative to the housing (110), so that the first inlet (112) is connected to the outlet (116) and the second inlet (114) is connected to the connection port (118); When fluid enters the housing (110) from the second inlet (114), the sliding member (120) slides away from the second inlet (114) relative to the housing (110), so that the second inlet (114) is connected to the outlet (116) and the first inlet (112) is connected to the connection port (118); The sliding member (120) includes a first connecting member (122), a second connecting member (124), and a movable member (126). The first connecting member (122) and the second connecting member (124) are respectively connected to both ends of the movable member (126). The first connecting member (122) is located near the first inlet (112), and the second connecting member (124) is located near the second inlet (114). The circuit valve (100) also includes a stop member (130), which is installed inside the housing (110). When fluid enters the housing (110) from the first inlet (112), the sliding member (120) slides away from the first inlet (112) relative to the housing (110), and when the first connecting member (122) abuts against the stop member (130), the first inlet (112) is connected to the outlet (116), and the second inlet (114) is connected to the connection port (118); When fluid enters the housing (110) from the second inlet (114), the sliding member (120) slides away from the second inlet (114) relative to the housing (110), and when the second connecting member (124) abuts against the stop member (130), the second inlet (114) is connected to the outlet (116), and the first inlet (112) is connected to the connection port (118); The stop (130) has a sliding channel (133). The movable part (126) includes a movable rod (1262) and a movable plug (1264). The movable rod (1262) and the movable plug (1264) are disposed in the sliding channel (133). The movable plug (1264) is sleeved on the movable rod (1262). One end of the movable rod (1262) is connected to the first connecting member (122), and the other end is connected to the second connecting member (124). The movable plug (1264) slides in cooperation with the sliding channel (133). When fluid enters the housing (110) from the first inlet (112), the movable plug (1264) blocks the outlet (116) and the second inlet (114). When fluid enters the housing (110) from the second inlet (114), the movable plug (1264) blocks the outlet (116) and the first inlet (112).

2. The circuit valve (100) according to claim 1, characterized in that, The first connector (122) has a first connection port (1221) and a second connection port (1223). The first connection port (1221) is located near the connection port (118), and the second connection port (1223) is located near the outlet (116). When fluid enters the housing (110) from the first inlet (112), the stop (130) blocks the first connection port (1221), and the first inlet (112) is connected to the outlet (116) through the second connection port (1223). When fluid enters the housing (110) from the second inlet (114), the connection port (118) is connected to the first inlet (112) through the first connection port (1221).

3. The circuit valve (100) according to claim 2, characterized in that, The movable part (126) is disposed in the sliding channel (133). The first connecting part (122) includes a first connecting part (1225) and a first stop part (1227) connected to each other. The first stop part (1227) is slidably connected to the housing (110). The first connecting part (1225) can extend into the sliding channel (133). The first connecting port (1221) and the second connecting port (1223) are disposed on the first stop part (1227).

4. The circuit valve (100) according to claim 3, characterized in that, The first connecting part (1225) is provided with a first sliding surface (1229), and the sliding channel (133) is provided with a first guide surface (134). The first sliding surface (1229) can slide along the first guide surface (134) so ​​that the first connecting part (1225) extends into the sliding channel (133). The stop (130) can block the first connecting port (1221).

5. The circuit valve (100) according to claim 1, characterized in that, The second connector (124) has a third connector (1241) and a fourth connector (1243). The third connector (1241) is located near the connector (118), and the fourth connector (1243) is located near the outlet (116). When fluid enters the housing (110) from the first inlet (112), the stop (130) blocks the third connector (1241), and the fourth connector (1243) is connected to the outlet (116). When fluid enters the housing (110) from the second inlet (114), the connector (118) is connected to the first inlet (112) through the third connector (1241).

6. The circuit valve (100) according to claim 5, characterized in that, The movable part (126) is disposed in the sliding channel (133). The second connecting part (124) includes a second connecting part (1245) and a second stop part (1247) that are connected to each other. The second stop part (1247) is slidably connected to the housing (110). The second connecting part (1245) can extend into the sliding channel (133). The third connecting port (1241) and the fourth connecting port (1243) are disposed on the second stop part (1247).

7. The circuit valve (100) according to claim 6, characterized in that, The second connecting part (1245) is provided with a second sliding surface (1249), and the sliding channel (133) is provided with a second guide surface (136). The second sliding surface (1249) can slide along the second guide surface (136) so that the second connecting part (1245) extends into the sliding channel (133). The stop (130) can block the third connecting port (1241).

8. The circuit valve (100) according to claim 1, characterized in that, The movable plug (1264) is provided with a communication port (1266) near the connection port (118). When fluid enters the housing (110) from the first inlet (112), the connection port (118) communicates with the second inlet (114) through the communication port (1266). When fluid enters the housing (110) from the second inlet (114), the connection port (118) communicates with the first inlet (112) through the communication port (1266).

9. The circuit valve (100) according to claim 1, characterized in that, The movable part (126) is disposed in the sliding channel (133), the stop part (130) has a first transition port (131) and a second transition port (132), the outlet (116) is connected to the sliding channel (133) through the first transition port (131), and the connecting port (118) is connected to the sliding channel (133) through the second transition port (132).

10. An air conditioner (200), characterized in that, Includes the circuit valve (100) as described in any one of claims 1-9.

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