Heat exchange device and air conditioner having the same

Abstract

The utility model discloses a heat exchange device and air conditioner with it, the heat exchange device includes: heat exchanger, the heat exchanger includes first heat exchange channel, stop valve, stop valve with first heat exchange channel intercommunication is fixedly connected with heat exchanger. According to the heat exchange device of the utility model, by setting heat exchanger and stop valve, stop valve and heat exchanger fixed connection, stop valve and heat exchanger's first heat exchange channel intercommunication, simple structure makes heat exchange device can have the function of stop conduction, thereby the function of heat exchange device is expanded very well, and the arrangement quantity of pipe and other components can be reduced very well, reduce the path of vibration noise transmission to sheet metal structure, thereby the assembly of air conditioner is more convenient and easy, and the noise is smaller when air conditioner operation.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a heat exchange device and an air conditioner having the same. Background Technology

[0002] In general, to improve the low-temperature heating performance of air conditioners, air conditioning systems employ vapor injection enthalpy enhancement technology, which, combined with a vapor injection enthalpy enhancement device, supplements the compressor with a portion of refrigerant at the appropriate temperature to ensure the heating performance of the air conditioner and enable the air conditioning system to operate normally.

[0003] In related technologies, when a jet booster device is installed in an air conditioner, the jet booster device itself does not have a shut-off and conduction function. It needs to be connected to an external shut-off valve through the pipeline to achieve the shut-off and conduction functions. The pipeline layout occupies a lot of space and has many components inside the air conditioner, making the assembly of the air conditioner more complicated and inconvenient. Moreover, the shut-off valve is installed on the sheet metal structure such as the air conditioner casing. When the air conditioner is running, the vibration generated by the air conditioner compressor will be transmitted to the shut-off valve, causing the vibration noise to radiate out through the sheet metal, thereby amplifying the vibration noise and making the external noise generated when the air conditioner is running relatively large. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a heat exchange device that integrates cut-off and conduction functions and reduces the transmission of vibration and noise, thereby greatly expanding the functionality of the heat exchange device and reducing noise during air conditioner operation.

[0005] This utility model also proposes an air conditioner having the above-mentioned heat exchange device.

[0006] A heat exchange device according to a first aspect of the present invention includes: a heat exchanger, the heat exchanger including a first heat exchange channel; and a shut-off valve, the shut-off valve being fixedly connected to the heat exchanger and communicating with the first heat exchange channel.

[0007] According to the heat exchange device of this utility model, by setting a heat exchanger and a shut-off valve, the shut-off valve is fixedly connected to the heat exchanger and connected to the first heat exchange channel of the heat exchanger. The structure is simple, which enables the heat exchange device to have the function of shutting off and conducting, thereby greatly expanding the function of the heat exchange device. It can also greatly reduce the number of pipes and other components, reduce the path of vibration and noise transmission to the sheet metal structure, thereby making the assembly of the air conditioner more convenient and easier, and making the noise of the air conditioner less when it is running.

[0008] In some embodiments of this utility model, a first flow channel is formed at one end of the first heat exchange channel, the shut-off valve includes a valve body, the valve body is fixedly connected to the heat exchanger, the valve body has a valve cavity and a first connection port communicating with the valve cavity, and the first connection port is connected to the first flow channel.

[0009] In one embodiment of the present invention, the heat exchange device further includes a first filter element disposed within the valve cavity.

[0010] In one embodiment of this utility model, the valve body is provided with a mounting hole, which communicates with the valve cavity. The shut-off valve further includes: a first connecting pipe, which is fixedly connected to the valve body, with one end of the first connecting pipe extending into the valve cavity and the other end of the first connecting pipe forming a second connection port; and a valve core, which is disposed in the mounting hole and is movable in a conducting position and a shut-off position. In the conducting position, the valve core is away from the first end of the first connecting pipe, and in the shut-off position, the valve core blocks the first connecting pipe.

[0011] In some examples of this utility model, the valve core is threadedly connected to the inner wall of the mounting hole so that the valve core can move between the open position and the closed position.

[0012] In some examples of this utility model, a sealing groove is provided in one of the valve core and the inner wall of the mounting hole. The sealing groove extends in an annular shape along the circumference of the valve core. The shut-off valve also includes a sealing element, which is disposed in the sealing groove and sealed between the valve core and the inner wall of the mounting hole.

[0013] In some examples of this utility model, the end of the valve core opposite to the valve cavity is provided with an assembly groove, which is adapted to cooperate with a fastening tool to rotate the valve core.

[0014] In some examples of this utility model, the shut-off valve further includes a limiting member disposed in the mounting hole. In the axial direction of the mounting hole, the limiting member is located on the side of the valve core opposite to the valve cavity. The limiting member is used to limit the range of motion of the valve core along the axial direction of the mounting hole.

[0015] In some examples of this utility model, the shut-off valve further includes a pipe connector, which is located on the outside of the valve body and is connected to and communicates with the other end of the first connecting pipe.

[0016] In one embodiment of this utility model, a second flow channel is formed at the other end of the first heat exchange channel. The heat exchanger further includes a second heat exchange channel that exchanges heat with the first heat exchange channel. A third flow channel and a fourth flow channel are formed at both ends of the second heat exchange channel. The heat exchange device further includes: a connector, which is fixedly connected to the heat exchanger. The connector has a third connection port, a fourth connection port, and a flow branch port that are interconnected. The third connection port is connected to the second flow channel port. A throttling element is connected between the flow branch port and the third flow channel port.

[0017] In some examples of this utility model, the heat exchange device further includes a flow channel component, which is fixedly connected to the connector and the throttling element. The flow channel component has a first flow channel and a second flow channel. The two ends of the first flow channel are respectively connected to the flow divider and the inlet of the throttling element, and the two ends of the second flow channel are respectively connected to the outlet of the throttling element and the third flow channel outlet.

[0018] In one example of this utility model, the flow channel and the connecting member are an integral structure; and / or, the heat exchange device further includes a temperature measuring element, which is used to measure the temperature of the refrigerant in the first flow channel.

[0019] In some examples of this utility model, the two ends of the connector form the third connection port and the fourth connection port respectively, and the heat exchange device further includes a second filter element, which is connected in series on the connector and located between the diversion port and the fourth connection port.

[0020] In some examples of this utility model, the heat exchange device further includes a third connecting pipe, which is connected to the heat exchanger and communicates with the fourth flow channel of the second heat exchange channel.

[0021] In some embodiments of this utility model, the heat exchanger includes an end plate, and the shut-off valve is fixedly connected to the end plate.

[0022] An air conditioner according to a second aspect of the present invention includes a heat exchange device according to a first aspect of the present invention.

[0023] According to the present invention, the air conditioner, by setting the heat exchange device of the first aspect, the heat exchange device is provided with a heat exchanger and a shut-off valve. The shut-off valve is fixedly connected to the heat exchanger and is connected to the first heat exchange channel of the heat exchanger. The structure is simple, and the heat exchange device can have the function of shutting off and conducting, thereby greatly expanding the function of the heat exchange device. It can also greatly reduce the number of pipes and other components, reduce the path of vibration and noise transmission to the sheet metal structure, thereby making the air conditioner easier to assemble and making the air conditioner quieter when it is running.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a heat exchange device according to an embodiment of the present utility model;

[0026] Figure 2 This is a cross-sectional view of the heat exchange device according to an embodiment of the present invention, with the shut-off valve in operation and the first filter element.

[0027] Figure 3 This is a cross-sectional view of the heat exchange device according to an embodiment of the present invention, with the shut-off valve closed and the first filter element in view;

[0028] Figure 4 This is a schematic diagram of the flow channel components, throttling elements, and connecting components in the heat exchange device according to an embodiment of the present utility model, cut along the horizontal direction.

[0029] Figure 5 This is a schematic diagram of an air conditioner system according to an embodiment of the present utility model.

[0030] Figure label:

[0031] 10. Heat exchange device;

[0032] 11. Heat exchanger; 1101. First flow channel inlet; 1102. Second flow channel inlet; 1103. Third flow channel inlet; 1104. Fourth flow channel inlet; 111. End plate;

[0033] 12. Shut-off valve;

[0034] 121. First connecting pipe; 122. Valve body; 1221. Valve cavity; 1222. Mounting hole;

[0035] 123. Valve core; 1231. Assembly groove; 124. Seal; 125. Limiting element; 126. Pipe fitting;

[0036] 13. Connecting parts; 14. Flow channel parts; 15. Throttling elements; 16. Temperature measuring elements; 17. Third connecting pipe;

[0037] 18. First filter element; 19. Second filter element;

[0038] 20. Compressor; 30. Outdoor heat exchanger; 40. Expansion valve; 50. Third filter element; 60. Four-way valve; 70. Oil separator; 80. Oil return line; 90. Gas-liquid separator;

[0039] 100. Air conditioner. Detailed Implementation

[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0041] First, refer to Figure 5 A brief description of the air conditioner 100 according to a second aspect embodiment of the present invention is provided. The air conditioner 100 may include an indoor unit and an outdoor unit. The indoor unit is provided with an indoor heat exchanger 11, and the outdoor unit is provided with a compressor 20, an outdoor heat exchanger 30, an expansion valve 40, and a heat exchange device 10. When the air conditioner 100 is cooling, the refrigerant flows out from the compressor 20 and passes sequentially through the outdoor heat exchanger 30, the expansion valve 40, and the heat exchange device 10 before entering the indoor heat exchanger 11 for cooling. The refrigerant then flows back to the compressor 20, and this cycle continues to perform cooling. The heat exchange device 100... After throttling and heat exchange, a portion of the refrigerant is added to the compressor 20, thereby increasing the intake volume of the compressor 20 and reducing the compression temperature, thus achieving vapor injection. When the air conditioner 100 is heating, the refrigerant flows out of the compressor 20 and passes through the indoor heat exchanger 11, the heat exchange device 10 and the expansion valve 40 in sequence before entering the outdoor heat exchanger 30, and then flows back to the compressor 20. The refrigerant performs heating operations in the indoor heat exchanger 11, and this cycle continues to provide heating. Similarly, in the heat exchange device 10, a portion of the refrigerant is throttled and heat exchanged before being added to the compressor 20, thus achieving vapor injection.

[0042] The following is for reference. Figures 1-4 A heat exchange device 10 according to a first aspect embodiment of the present invention is described.

[0043] like Figures 1-4 As shown, the heat exchange device 10 according to a first aspect embodiment of the present invention includes: a heat exchanger 11 and a shut-off valve 12. The heat exchanger 11 includes a first heat exchange channel; the shut-off valve 12 is fixedly connected to the heat exchanger 11 and communicates with the first heat exchange channel.

[0044] In this embodiment, the heat exchange device 10 is equipped with a heat exchanger 11, which can meet the heat exchange needs of the heat exchange device 10 for the refrigerant during jet injection. The heat exchanger 11 includes a first heat exchange channel. The heat exchange device 10 is also equipped with a shut-off valve 12, which is connected to the first heat exchange channel. The structure is simple. The shut-off valve 12 can play the role of shutting off conduction. When the air conditioner 100 is transported, the shut-off valve 12 can be closed to effectively prevent the refrigerant from leaking due to vibration or improper handling, thereby avoiding refrigerant loss. Before the air conditioner 100 is used, the air conditioner 100 can also perform pipeline pressure tests by opening or closing the shut-off valve 12.

[0045] In this embodiment, the shut-off valve 12 is connected to the first heat exchange channel, which can meet the usage requirements of the shut-off valve 12. The shut-off valve 12 is fixedly connected to the heat exchanger 11, so that the shut-off valve 12 can be integrated into the heat exchanger 11. This can reduce the piping layout required for the shut-off valve 12 and the heat exchanger 11 to be set independently, and make the overall space occupied by the shut-off valve 12 and the heat exchanger 11 smaller, thereby greatly reducing the number of pipes in the heat exchange device 10, reducing the number of parts in the air conditioner 100, and making the air conditioner 100 easier to assemble.

[0046] In this embodiment, a shut-off valve 12 is provided in the heat exchange device 10 and is fixedly connected to the heat exchanger 11, so that the heat exchange device 10 can have the function of shutting off conduction, thereby greatly expanding the function of the heat exchange device 10. The shut-off valve 12 is fixedly connected to the heat exchanger 11, and the shut-off valve 12 can be installed in the outdoor unit through the heat exchanger 11. Since the heat exchanger 11 is usually arranged with a buffer structure at the support connection position, compared with the shut-off valve 12 being installed separately on the sheet metal structure, it can effectively prevent the vibration noise of the compressor 20 from being transmitted to the sheet metal structure through the shut-off valve 12, thus reducing the noise. It also reduces the path of vibration noise transmitted to the sheet metal structure, thereby making the air conditioner 100 quieter during operation.

[0047] According to the embodiment of the present utility model, the heat exchange device 10 is provided with a heat exchanger 11 and a shut-off valve 12. The shut-off valve 12 is fixedly connected to the heat exchanger 11 and communicates with the first heat exchange channel of the heat exchanger 11. The structure is simple, which enables the heat exchange device 10 to have the function of shutting off and conducting, thereby greatly expanding the function of the heat exchange device 10. It can also greatly reduce the number of pipes and other components, reduce the path of vibration and noise transmission to the sheet metal structure, thereby making the assembly of the air conditioner 100 more convenient and easier, and making the noise of the air conditioner 100 less when it is running.

[0048] In some embodiments of this utility model, reference is made to Figure 1 , Figure 2 and Figure 4 As shown, one end of the first heat exchange channel may form a first flow channel port 1101. The shut-off valve 12 may include a valve body 122. The valve body 122 is fixedly connected to the heat exchanger 11. The valve body 122 has a valve cavity 1221 and a first connection port communicating with the valve cavity 1221. The first connection port is connected to the first flow channel port 1101.

[0049] In this embodiment, the shut-off valve 12 includes a valve body 122, which is fixedly connected to the heat exchanger 11. For example, the valve body 122 and the heat exchanger 11 can be welded together. The first connection port is connected to the first flow channel port 1101 of the first heat exchange channel, so that the valve cavity 1221 is connected to the first heat exchange channel. The structure is simple, and the shut-off valve 12 can be stably integrated and fixed on the heat exchanger 11 through the valve body 122.

[0050] In one embodiment of this utility model, such as Figure 2 As shown, the heat exchange device 10 may also include a first filter element 18, which is disposed in the valve chamber 1221.

[0051] In this embodiment, the heat exchange device 10 also includes a first filter element 18. The first filter element 18 is disposed in the valve chamber 1221. When the shut-off valve 12 is in the open state, the refrigerant can be filtered by the first filter element 18 when passing through the valve chamber 1221, thereby effectively reducing the probability of blockage of the shut-off valve 12 and the expansion valve 40 in the air conditioner 100, making the heat exchange device 10 operate more stably, and enabling the air conditioner 100 to operate stably and efficiently.

[0052] In this embodiment, a first filter element 18 is provided in the valve chamber 1221 of the shut-off valve 12, so that the first filter element 18 can be well integrated into the shut-off valve 12, thereby making the first filter element 18 well integrated into the heat exchange device 10, so that the heat exchange device 10 can also play a filtering role, further expanding the function of the heat exchange device 10, and making the overall structure of the first filter element 18 and the shut-off valve 12 more compact, making the overall structure of the heat exchange device 10 more compact and smaller in size, thus making it more convenient to arrange the heat exchange device 10 in the outdoor unit of the air conditioner 100.

[0053] The first filter element 18 is arranged inside the valve cavity 1221 of the shut-off valve 12. Compared to the first filter element 18 being independently arranged outside the heat exchange device 10, this effectively avoids the piping arrangement during the assembly of the first filter element 18 and the heat exchange device 10, further reducing the number of pipes in the air conditioner 100, thus making the air conditioner 100 easier to assemble. For example, the first filter element 18 can be a filter screen, such as a mesh structure. The first filter element 18 can be fixed to the inner wall of the valve cavity 1221. The first filter screen can be arranged in the valve cavity 1221 near the first connection port, so that when the refrigerant flows from the first heat exchange channel to the shut-off valve 12, the first filter screen can filter and block impurities outside the valve cavity 1221.

[0054] In one embodiment of this utility model, such as Figure 2 and Figure 3As shown, the valve body 122 may be provided with a mounting hole 1222, which communicates with the valve cavity 1221. The shut-off valve 12 may also include: a first connecting pipe 121 and a valve core 123. The first connecting pipe 121 is fixedly connected to the valve body 122. One end of the first connecting pipe 121 extends into the valve cavity 1221, and the other end of the first connecting pipe 121 forms a second connection port. The valve core 123 is disposed in the mounting hole 1222. The valve core 123 is movable in the open position and the shut-off position. In the open position, the valve core 123 is away from the end of the first connecting pipe 121. In the shut-off position, the valve core 123 blocks the first connecting pipe 121.

[0055] In this embodiment, the valve body 122 is provided with a mounting hole 1222, and the valve core 123 is disposed in the mounting hole 1222 and is movable in the open and closed positions. When the shut-off valve 12 is closed, the valve core 123 can move to the closed position, and the valve core 123 blocks the first connecting pipe 121 in the valve cavity 1221, thus cutting off the valve cavity 1221 from the first connecting pipe 121. When the shut-off valve 12 is open, the valve core 123 can move to the open position, and the valve core 123 moves away from the first connecting pipe 121. The refrigerant can enter the valve chamber 1221 from one end of the first connecting pipe 121 and flow along the first connecting pipe 121 to the second connecting port. For example, the second connecting port of the first connecting pipe 121 can be connected to the indoor heat exchanger 11 through an external pipeline, so that the refrigerant can flow to the indoor heat exchanger 11 for cooling or the refrigerant can enter the heat exchange device 10 from the second connecting port after heating in the indoor heat exchanger 11 to flow to the compressor 20.

[0056] In this embodiment, the valve body 122 is provided with mounting holes 1222 to facilitate the installation and arrangement of the valve core 123. The shut-off valve 12 is provided with a first connecting pipe 121 and the valve core 123. The structure is simple and can meet the usage requirements of the shut-off valve 12 and the assembly and connection requirements with external pipelines.

[0057] In some examples of this utility model, such as Figure 2 As shown, the valve core 123 can be threaded to the inner wall of the mounting hole 1222 so that the valve core 123 can move between the open position and the closed position.

[0058] In this embodiment, the valve core 123 is threadedly connected to the inner wall of the mounting hole 1222, resulting in a simple structure. The valve core 123 can easily move between the open and closed positions by rotating within the mounting hole 1222. Furthermore, the threaded connection provides a self-locking effect, allowing the valve core 123 to stably remain in either the open or closed position, thus enabling the shut-off valve 12 to reliably perform its functions of shutting off and opening. For example, the outer circumferential surface of the valve core 123 may have an external thread, and the inner wall of the mounting hole 1222 may have an internal thread. The valve core 123 and the mounting hole 1222 are connected by the external and internal threads, allowing the valve core 123 to be stably installed within the mounting hole 1222 and easily move between the open and closed positions.

[0059] In some examples of this utility model, references Figure 2 As shown, one of the inner walls of the valve core 123 and the mounting hole 1222 may be provided with a sealing groove. The sealing groove extends in an annular shape along the circumference of the valve core 123. The shut-off valve 12 also includes a sealing element 124, which is disposed in the sealing groove and is sealed between the valve core 123 and the inner wall of the mounting hole 1222.

[0060] In this embodiment, a sealing groove is provided in one of the inner walls of the valve core 123 and the mounting hole 1222. The sealing groove extends in a ring shape along the circumference of the valve core 123. For example, a sealing groove can be provided on the valve core 123. The sealing member 124 is sleeved on the valve core 123 and fixed in the sealing groove. The sealing member 124 abuts against the inner circumferential wall of the mounting hole 1222 to seal the connection between the valve core 123 and the inner wall of the mounting hole 1222. Alternatively, the sealing groove is formed on the inner wall of the mounting hole 1222, the sealing member 124 is fixed in the sealing groove and sleeved on the valve core 123, and the sealing member 124 abuts against the valve core 123 to seal the valve core 123 and the mounting hole 1222.

[0061] In this embodiment, a sealing element 124 is provided to seal between the valve core 123 and the inner wall of the mounting hole 1222. The structure is simple and can work with the valve core 123 to seal the valve cavity 1221 well at the mounting hole 1222, preventing the refrigerant in the valve cavity 1221 from leaking from the mounting hole 1222, making the air conditioner 100 operate more stably.

[0062] In this embodiment, an installation groove is provided on the inner wall of the valve core 123 or the mounting hole 1222 to facilitate the installation and arrangement of the seal 124. For example, the seal 124 can be a sealing ring, such as an O-ring.

[0063] In some examples of this utility model, such as Figure 2 As shown, the end of the valve core 123 away from the valve cavity 1221 may be provided with an assembly groove 1231, which is suitable for cooperating with a fastening tool to rotate the valve core 123.

[0064] In this embodiment, an assembly groove 1231 is provided at the end of the valve core 123 away from the valve cavity 1221. The assembly groove 1231 is suitable for cooperating with fastening tools to rotate the valve core 123. The structure is simple and makes it easy for assemblers to use fastening tools to rotate the valve core 123 so that the shut-off valve 12 can be shut off or opened.

[0065] In some examples of this utility model, such as Figure 2 As shown, the shut-off valve 12 may further include a limiting member 125, which is disposed within the mounting hole 1222, and is positioned axially within the mounting hole 1222 (e.g., ...). Figure 2 (As shown in the up-down direction), the limiting member 125 is located on the side of the valve core 123 away from the valve cavity 1221, and the limiting member 125 is used to limit the range of motion of the valve core 123 along the axial direction of the mounting hole 1222.

[0066] In this embodiment, a limiting member 125 is provided in the mounting hole 1222. The limiting member 125 is arranged on the side of the valve core 123 away from the valve cavity 1221 to limit the range of motion of the valve core 123 along the axial direction of the mounting hole 1222. The limiting member 125 can stably limit the valve core 123 in the mounting hole 1222, effectively preventing the valve core 123 from completely falling off the valve body 122 due to excessive rotation when the assembly personnel rotate the valve core 123 away from the valve cavity 1221. This allows the valve core 123 to be easily operated during use, making the use of the shut-off valve 12 more convenient. Optionally, the limiting member 125 can be a retaining ring, and a groove can be formed on the inner peripheral wall of the mounting hole 1222. The limiting member 125 is snapped and fixed in the groove to be installed in the mounting hole 1222.

[0067] In some examples of this utility model, such as Figure 1 and Figure 2 As shown, the shut-off valve 12 may also include a pipe joint 126, which is located on the outside of the valve body 122 and is connected to and communicates with the other end of the first connecting pipe 121.

[0068] In this embodiment, a pipe joint 126 is connected to the other end of the first connecting pipe 121. The structure is simple, so that when the heat exchange device 10 is assembled and connected with devices such as the indoor heat exchanger 11, the shut-off valve 12 can be conveniently connected to the external pipeline through the pipe joint 126, thereby making it easier to assemble the heat exchange device 10 with other devices in the air conditioner 100.

[0069] In one embodiment of this utility model, reference is made to Figure 1 , Figure 4 and Figure 5As shown, a second flow channel 1102 can be formed at the other end of the first heat exchange channel. The heat exchanger 11 may also include a second heat exchange channel that exchanges heat with the first heat exchange channel. A third flow channel 1103 and a fourth flow channel 1104 are formed at both ends of the second heat exchange channel, respectively. The heat exchange device 10 also includes a connector 13 and a throttling element 15. The connector 13 is fixedly connected to the heat exchanger 11. The connector 13 has a third connection port, a fourth connection port and a branch port that are interconnected. The third connection port is connected to the second flow channel 1102. The throttling element 15 is connected between the branch port and the third flow channel 1103.

[0070] In this embodiment, the heat exchanger 11 also includes a second heat exchange channel that exchanges heat with the first heat exchange channel, which can meet the usage requirements of the heat exchanger 11. The heat exchange device 10 is provided with a connector 13, and the third connection port of the connector 13 is connected to the second flow channel port 1102 of the first heat exchange channel. The throttling element 15 is connected between the diversion port and the third flow channel port 1103 of the second heat exchange channel. The structure is simple and the arrangement is reasonable, which can meet the refrigerant flow requirements when the air conditioner 100 is running.

[0071] For example, when the air conditioner 100 is in cooling operation, the refrigerant can enter the connector 13 from the fourth connection port of the connector 13. Part of the refrigerant enters the first heat exchange channel from the third connection port and flows along the first heat exchange channel to the shut-off valve 12. The other part of the refrigerant flows from the diversion port to the throttling element 15. After the refrigerant is throttled and cooled by the throttling element 15, it flows from the third connection port into the second heat exchange channel to exchange heat with the refrigerant in the first heat exchange channel. This causes the refrigerant to cool down when it flows through the first heat exchange channel and flow out from the first connection pipe 121 of the shut-off valve 12, and then flow to the indoor heat exchanger 11 for cooling. When the refrigerant flows through the second heat exchange channel, its temperature is raised to a certain extent and then it flows to the compressor 20, so that the refrigerant is replenished into the compressor 20 at a more suitable temperature, thereby improving the compression efficiency of the compressor 20 and enabling the air conditioner 100 to perform cooling operations more efficiently.

[0072] When the air conditioner 100 is in heating operation, the refrigerant can enter the first heat exchange channel of the heat exchanger 11 from the pipe joint 126 and flow from the second flow port 1102 to the connector 13. Part of the refrigerant in the connector 13 flows to the outdoor heat exchanger 30 from the fourth connection port, and the other part flows to the throttling element 15 from the branch port. After the refrigerant is throttled and cooled by the throttling element 15, it flows into the second heat exchange channel to exchange heat with the refrigerant in the first heat exchange channel. After the refrigerant is cooled by heat exchange in the first heat exchange channel, it flows to the outdoor heat exchanger 30 from the fourth connection port of the connector 13. After the refrigerant is heated to a certain extent when it flows through the second heat exchange channel, it flows to the compressor 20, so that the refrigerant is replenished into the compressor 20 at a more suitable temperature, which increases the suction volume of the compressor 20 and reduces the compression temperature, so that the compressor 20 can operate more efficiently and the air conditioner 100 can perform heating operation more efficiently.

[0073] In some examples of this utility model, references Figure 1 , Figure 4 and Figure 5 As shown, the heat exchange device 10 may also include a flow channel 14, which is fixedly connected to the connector 13 and the throttling element 15. The flow channel 14 has a first flow channel and a second flow channel. The two ends of the first flow channel are respectively connected to the diversion port and the inlet of the throttling element 15, and the two ends of the second flow channel are respectively connected to the outlet of the throttling element 15 and the third flow channel port 1103.

[0074] In this embodiment, the heat exchange device 10 is also provided with a flow channel component 14. The flow channel component 14 is fixedly connected to the connector 13 and the throttling element 15. The throttling element 15 is connected to the flow branch port of the connector 13 through the first flow channel in the flow channel component 14, and is connected to the third flow channel port 1103 through the second flow channel. The structure is simple and can well meet the flow requirements of the refrigerant from the connector 13 to the throttling element 15 and then into the second heat exchange channel.

[0075] In this embodiment, the flow channel component 14 and the connector 13 are an integral structure. For example, the flow channel component 14 and the connector 13 can be integrally machined or welded together as a single unit. This allows the flow channel component 14 and the throttling element 15 to be integrated and fixed on the heat exchanger 11 through the connector 13, making the overall structure of the connector 13, the throttling element 15, and the flow channel component 14 more compact. It also improves the overall structural strength and stability of the heat exchange device 10, better reducing the transmission of vibration and noise. At the same time, it allows the refrigerant to flow between the connector 13, the throttling element 15, and the second heat exchange channel through the flow channel component. The connection 14 effectively avoids the need for a separate pipe structure. Compared to the separate arrangement of the throttling element 15, it can significantly reduce the number of pipes. This reduces the number of connections and fixations between the pipes and components such as the throttling element 15 during the manufacturing process of the heat exchange device 10, making the production and processing of the heat exchange device 10 more convenient and easier. At the same time, the throttling element, the flow channel component 14, and the first connecting pipe 121 are integrated and fixed on the heat exchanger 11, making the overall structure of the heat exchange device 10 more compact and occupying less space. This makes it easier and more convenient to assemble the heat exchange device 10 in the air conditioner 100.

[0076] In one example of this utility model, such as Figure 1 As shown, the heat exchange device 10 may also include a temperature measuring element 16, which is used to measure the temperature of the refrigerant in the first flow channel.

[0077] In this embodiment, the heat exchange device 10 also includes a temperature measuring element 16. The temperature measuring element 16 is used to measure the refrigerant temperature in the first flow channel. This facilitates the detection of the refrigerant temperature in the first flow channel, allowing the air conditioner 100 to flexibly adjust the expansion valve 40 and the throttling element 15 in the air conditioner 100 based on the acquired temperature information during operation, so that the air conditioner 100 can maintain a highly efficient operating state. Optionally, the temperature measuring element 16 can be a temperature measuring sleeve, and the temperature measuring element 16 is fixed on the flow channel component 14.

[0078] In some examples of this utility model, references Figure 1 and Figure 4 As shown, the two ends of the connector 13 form a third connection port and a fourth connection port respectively. The heat exchange device 10 may also include a second filter 19, which is connected in series with the connector 13 and located between the diversion port and the fourth connection port.

[0079] In this embodiment, the connector 13 has a third connection port and a fourth connection port at both ends. The design is reasonable, so that the end of the connector 13 with the third connection port can be fixedly connected to the heat exchanger 11, while the fourth connection port is used to connect to the external pipeline.

[0080] In this embodiment, the second filter element 19 is connected in series with the connector 13 and located between the diversion port and the fourth connection port. The structure is simple and the arrangement is reasonable. During the process of the refrigerant flowing through the heat exchange device 10, when the refrigerant flows from the connector 13 to the first heat exchange channel and the throttling element 15, the second filter element 19 can filter the impurities in the refrigerant. The filtered refrigerant then flows to the throttling element 15 and the heat exchanger 11, thereby greatly reducing the probability of blockage in the heat exchange device 10 and enabling the heat exchange device 10 to operate more stably and reliably.

[0081] In this embodiment, the second filter element 19 connected in series on the connector 13 can work with the first filter element 18 in the shut-off valve 12 to perform bidirectional filtration of the refrigerant flowing to the heat exchanger 11 and the throttling element 15. For example, when the refrigerant flows from the connector 13 to the first heat exchange channel and the throttling element 15, the second filter element 19 filters the refrigerant. When the refrigerant flows from the first connecting pipe 121 to the first heat exchange channel and the throttling element 15, the first filter element 18 filters the refrigerant. This greatly reduces the probability of blockages or other malfunctions in the heat exchange device 10 during the operation of the air conditioner 100, allowing the heat exchange device 10 to operate more stably and reliably, and thus enabling the air conditioner 100 to operate more stably and efficiently.

[0082] In some examples of this utility model, references Figure 1 and Figure 4 As shown, the heat exchange device 10 may also include a third connecting pipe 17, which is connected to the heat exchanger 11 and communicates with the fourth flow port 1104 of the second heat exchange channel.

[0083] In this embodiment, the heat exchange device 10 is connected to the heat exchanger 11 via a third connecting pipe 17. The third connecting pipe 17 is connected to the fourth flow port 1104 of the second heat exchange channel. The structure is simple, and the heat exchange device 10 can be connected to external pipelines through the third connecting pipe 17, making it more convenient to assemble the heat exchange device 10 in the air conditioner 100. Optionally, the third connecting pipe 17 can be fixedly connected to the heat exchanger 11.

[0084] In some embodiments of this utility model, such as Figure 1 As shown, the heat exchanger 11 may include an end plate 111, and the shut-off valve 12 is fixedly connected to the end plate 111.

[0085] In this embodiment, the heat exchanger 11 includes an end plate 111, which has a simple structure and can meet the manufacturing and assembly requirements of the heat exchanger 11. The shut-off valve 12 is fixedly connected to the end plate 111, so that the shut-off valve 12 can be stably fixed on the end plate 111. The end plate 111 can provide a good arrangement position for the shut-off valve 12 and facilitate the connection between the shut-off valve 12 and the first heat exchange channel of the heat exchanger 11, so that the shut-off valve 12 can be easily integrated and fixed onto the heat exchanger 11.

[0086] The following is for reference. Figures 1-5 An air conditioner 100 according to a second aspect embodiment of the present invention is described.

[0087] like Figures 1-5 As shown, the air conditioner 100 according to an embodiment of the present invention includes a heat exchange device 10 according to a first aspect embodiment of the present invention.

[0088] According to the embodiment of the present utility model, the air conditioner 100 is provided with the heat exchange device 10 of the first aspect embodiment. The heat exchange device 10 is provided with a heat exchanger 11 and a shut-off valve 12. The shut-off valve 12 is fixedly connected to the heat exchanger 11 and communicates with the first heat exchange channel of the heat exchanger 11. The structure is simple, so that the heat exchange device 10 can have the function of shutting off and conducting, thereby greatly expanding the function of the heat exchange device 10. It can also greatly reduce the number of pipes and other components, reduce the path of vibration and noise transmission to the sheet metal structure, thereby making the assembly of the air conditioner 100 more convenient and easier, and making the noise of the air conditioner 100 less when it is running.

[0089] In some embodiments of this utility model, such as Figure 5 As shown, the air conditioner 100 may include an outdoor heat exchanger 30, an indoor heat exchanger 11, a compressor 20, and an expansion valve 40. The outdoor heat exchanger 30, the compressor 20, and the expansion valve 40 may be assembled together with the heat exchange device 10 in the outdoor unit. The indoor heat exchanger 11 is arranged in the indoor unit. The heat exchange device 10 is arranged between the expansion valve 40 and the indoor heat exchanger 11 and connected by a pipeline. The outdoor heat exchanger 30 is arranged between the compressor 20 and the expansion valve 40 and connected by a pipeline.

[0090] In this embodiment, the air conditioner 100 is equipped with an outdoor heat exchanger 30, an indoor heat exchanger 11, a compressor 20, and an expansion valve 40. The outdoor heat exchanger 30, the indoor heat exchanger 11, the compressor 20, the expansion valve 40, and the heat exchange device 10 are connected by pipelines, which can meet the operating needs of the air conditioner 100 and the circulation needs of the refrigerant.

[0091] For example, the expansion valve 40 can be connected to the fourth connection port of the connector 13 of the heat exchange device 10 through a pipeline, the indoor heat exchanger 11 can be connected to the pipe joint 126 on the first connecting pipe 121 of the heat exchange device 10 through a pipeline, and the intermediate gas injection port of the compressor 20 can be connected to the third connecting pipe 17 of the heat exchange device 10 through an increase in flow rate pipeline.

[0092] In one embodiment of this utility model, such as Figure 5As shown, a third filter element 50 can be installed on the pipeline between the expansion valve 40 and the outdoor heat exchanger 30. This allows the third filter element 50 to filter impurities in the refrigerant as it flows from the outdoor heat exchanger 30 to the expansion valve 40, preventing blockage of the expansion valve 40 and ensuring stable operation of the air conditioner 100. Simultaneously, the third filter element 50 can work in conjunction with the second filter element 19 on the connector 13 to filter at both ends of the expansion valve 40, achieving bidirectional filtration of the expansion valve 40. This means filtration can occur during both cooling and heating operations of the air conditioner 100, further reducing the probability of blockages and other malfunctions in the expansion valve 40, thus making the operation of the air conditioner 100 more stable and reliable.

[0093] In one embodiment of this utility model, such as Figure 5 As shown, the outdoor unit of the air conditioner 100 may also include an oil separator 70, a return pipe, a four-way valve 60, and a gas-liquid separator 90. The oil separator 70 is located between the outlet of the compressor 20 and the inlet of the outdoor heat exchanger 30. The four-way valve 60 is located between the oil separator 70 and the outdoor heat exchanger 30. The return pipe is connected to the inlet of the compressor 20 and the oil separator 70. The gas-liquid separator 90 is connected to the four-way valve 60 and the inlet of the compressor 20.

[0094] In this embodiment, a four-way valve 60 is provided to meet the need for switching the refrigerant flow direction when the air conditioner 100 is cooling and heating. An oil separator 70 is provided to separate the oil in the refrigerant flowing to the outdoor heat exchanger 30 and let it flow back to the compressor 20 along the return pipeline. A gas-liquid separator 90 can separate the liquid refrigerant in the refrigerant, so that the refrigerant entering the compressor 20 is a pure gaseous refrigerant, thereby maintaining the compression performance of the Eurasian system and enabling the air conditioner 100 to operate stably and efficiently.

[0095] The following will refer to Figures 1-5 This invention describes an air conditioner 100 according to a specific embodiment of the present invention.

[0096] like Figures 1-5As shown, the air conditioner 100 includes an outdoor unit and an indoor unit. For example, one outdoor unit can operate in conjunction with one or more indoor units, and the arrangement of the indoor and outdoor units can be flexibly configured according to usage requirements. The outdoor unit includes a compressor 20, an outdoor heat exchanger 30, an expansion valve 40, a heat exchange device 10, an oil separator 70, a four-way valve 60, a gas-liquid separator 90, an oil return line 80, and an oil inlet line. The indoor unit includes an indoor heat exchanger 11. The outlet of compressor 20 is sequentially connected to oil separator 70, four-way valve 60, outdoor heat exchanger 30, third filter 50, expansion valve 40, and heat exchange device 10. Heat exchange device 10 is connected to indoor heat exchanger 11. Indoor heat exchanger 11 is connected to gas-liquid separator 90 and the inlet of compressor 20. Oil return line 80 is connected to oil separator 70 and the inlet of compressor 20. Oil return line 80 may include two oil return branches, each including an oil return capillary section. One of the oil return branches is equipped with a one-way solenoid valve. A one-way valve and a high-pressure switch are installed on the pipeline connecting oil separator 70 and four-way valve 60. The pipeline connecting indoor heat exchanger 11 and gas-liquid separator 90 passes through four-way valve 60 and is equipped with a low-pressure switch. A fan is also installed on the outside of outdoor heat exchanger 30 to enhance heat exchange between outdoor heat exchanger 30 and outside air.

[0097] The heat exchange device 10 includes a heat exchanger 11, a shut-off valve 12, a connector 13, a third connecting pipe 17, a flow channel 14, a first filter 18, a second filter 19, and a throttling element 15. The heat exchanger 11 is a plate heat exchanger 11 and includes an end plate 111. The shut-off valve 12, connector 13, third connecting pipe 17, flow channel 14, and throttling element 15 are all arranged on one side of the heat exchanger 11 with the end plate 111 and fixed on the end plate 111. The heat exchanger 11 includes a first heat exchange channel and a second heat exchange channel that exchange heat with each other. In this embodiment, components such as the shut-off valve 12 and the connector 13 can be flexibly arranged and connected to the first heat exchange channel and the second heat exchange channel as needed to meet the flow requirements of the refrigerant. For example, the shut-off valve 12 can be arranged at the first flow port 1101 of the first heat exchange channel, or at the second flow port 1102 of the first heat exchange channel, or at the third flow port 1103 or the fourth flow port 1104 of the second heat exchange channel. The connector 13, the flow channel component 14, the throttling element 15, and the third connecting pipe 17 are adjusted accordingly to their positions relative to the first heat exchange channel and the second heat exchange channel of the heat exchanger 11.

[0098] The shut-off valve 12 includes a valve body 122, a valve core 123, a seal 124, a limiting element 125, and a first connecting pipe 121. The valve body 122 is welded to the end plate 111. The first filter element 18 is disposed in the valve cavity 1221 of the valve body 122. The first connecting pipe 121 is welded to the valve body 122. A pipe joint 126 is fixedly connected to one end of the first connecting pipe 121 outside the valve body 122. The pipe joint 126 is connected to the inlet of the indoor heat exchanger 11 through a pipeline. The throttling element 15 is an electronic expansion valve. The throttling element 15 is fixedly connected to the flow channel element 14. The flow channel element 14 is fixedly connected to the connecting element 13. The connecting element 13 is fixedly connected to the end plate 111. The connecting element 13 is connected in series with the second filter element 19.

[0099] The nut of pipe fitting 126 can be 3 / 8. The first connecting pipe 121 is a copper pipe with an outer diameter of 9.52 mm and a wall thickness of 0.7 mm to match pipe fitting 126. The valve body 122 can be made of stainless steel to enhance the outer wall strength and reduce heat loss.

[0100] In this embodiment, the shut-off valve 12 and the throttling element 15 are integrated into the heat exchanger 11. The throttling element 15 is connected to the first heat exchange channel and the second heat exchange channel of the heat exchanger 11 through the set flow channel 14. This can effectively reduce the number of pipes and other components required when the heat exchanger is set independently, thereby reducing the cost of the heat exchange device 10. It also makes the overall structure of the heat exchange device 10 more compact and occupies less space. The number of welding points in the heat exchange device 10 during production is reduced, and the welding difficulty is greatly reduced. This makes the air conditioner 100 easier and more efficient to assemble, resulting in higher manufacturing efficiency, better quality, and fewer hidden dangers in the air conditioner 100.

[0101] The heat exchanger 11 is fixedly connected to the shut-off valve 12, which greatly improves the overall rigidity of the heat exchange device 10. After the heat exchange device 10 is assembled into the outdoor unit, when the air conditioner 100 is running, the vibration and noise from the compressor 20 is transmitted to the heat exchange device 10, which can reduce the transmission path of vibration and noise and play a certain role in suppressing vibration and noise. In addition, the shut-off valve 12 is not directly fixed to the sheet metal structure through the flange, which makes the vibration and noise transmitted outward during the operation of the air conditioner 100 even smaller, thus making the noise of the air conditioner 100 during operation even smaller.

[0102] In this embodiment, the heat exchanger 11 and the shut-off valve 12 are fixedly connected to the heat exchanger 11 and are connected to the first heat exchange channel of the heat exchanger 11. The structure is simple, which allows the heat exchange device 10 to have the function of shutting off and conducting, thereby greatly expanding the function of the heat exchange device 10. It can also greatly reduce the number of pipes and other components, reduce the path of vibration and noise transmission to the sheet metal structure, thereby making the assembly of the air conditioner 100 more convenient and easier, and making the noise of the air conditioner 100 less when it is running.

[0103] In another embodiment of this utility model, the throttling element 15 can also be a capillary tube, which can reduce the volume of the throttling element 15 and lower its cost, thereby greatly reducing the production cost of the heat exchange device 10.

[0104] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0105] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0106] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0107] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0108] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A heat exchange device, characterized in that, include: A heat exchanger, the heat exchanger including a first heat exchange channel; A shut-off valve is fixedly connected to the heat exchanger and communicates with the first heat exchange channel.

2. The heat exchange device according to claim 1, characterized in that, One end of the first heat exchange channel has a first flow channel opening. The shut-off valve includes a valve body, which is fixedly connected to the heat exchanger. The valve body has a valve cavity and a first connection port communicating with the valve cavity. The first connection port is connected to the first flow channel opening.

3. The heat exchange device according to claim 2, characterized in that, It also includes a first filter element, which is disposed inside the valve cavity.

4. The heat exchange device according to claim 2, characterized in that, The valve body is provided with a mounting hole, which communicates with the valve cavity. The shut-off valve further includes: A first connecting pipe is fixedly connected to the valve body, one end of the first connecting pipe extends into the valve cavity, and the other end of the first connecting pipe forms a second connecting port. A valve core is disposed in the mounting hole. The valve core is movable in a conducting position and a blocking position. In the conducting position, the valve core is away from the end of the first connecting pipe. In the blocking position, the valve core blocks the first connecting pipe.

5. The heat exchange device according to claim 4, characterized in that, The valve core is threadedly connected to the inner wall of the mounting hole, so that the valve core can move between the open position and the closed position.

6. The heat exchange device according to claim 4, characterized in that, The valve core and the inner wall of the mounting hole are provided with a sealing groove. The sealing groove extends in an annular shape along the circumference of the valve core. The shut-off valve also includes a sealing element, which is disposed in the sealing groove and is sealed between the valve core and the inner wall of the mounting hole.

7. The heat exchange device according to claim 4, characterized in that, The valve core has an assembly groove at one end opposite to the valve cavity, and the assembly groove is adapted to cooperate with a fastening tool to rotate the valve core.

8. The heat exchange device according to claim 4, characterized in that, The shut-off valve further includes a limiting member disposed within the mounting hole. In the axial direction of the mounting hole, the limiting member is located on the side of the valve core opposite to the valve cavity. The limiting member is used to limit the range of motion of the valve core along the axial direction of the mounting hole.

9. The heat exchange device according to claim 4, characterized in that, The shut-off valve also includes a pipe connector, which is located on the outside of the valve body and is connected to and communicates with the other end of the first connecting pipe.

10. The heat exchange device according to any one of claims 2-9, characterized in that, The other end of the first heat exchange channel forms a second flow channel. The heat exchanger also includes a second heat exchange channel that exchanges heat with the first heat exchange channel. The two ends of the second heat exchange channel respectively form a third flow channel and a fourth flow channel. The heat exchange device further includes: A connector is fixedly connected to the heat exchanger. The connector has a third connection port, a fourth connection port, and a flow branch port that are interconnected. The third connection port is connected to the second flow channel port. A throttling element is connected between the branch port and the third flow channel port.

11. The heat exchange device according to claim 10, characterized in that, It also includes a flow channel component, which is fixedly connected to the connector and the throttling element. The flow channel component has a first flow channel and a second flow channel. The two ends of the first flow channel are respectively connected to the flow divider and the inlet of the throttling element, and the two ends of the second flow channel are respectively connected to the outlet of the throttling element and the third flow channel outlet.

12. The heat exchange device according to claim 11, characterized in that, The flow channel component and the connecting component are an integral structure; and / or, the heat exchange device further includes a temperature measuring element, which is used to measure the temperature of the refrigerant in the first flow channel.

13. The heat exchange device according to claim 10, characterized in that, The connector forms the third connection port and the fourth connection port at its two ends, respectively. The heat exchange device also includes a second filter element, which is connected in series with the connector and located between the diversion port and the fourth connection port.

14. The heat exchange device according to claim 10, characterized in that, It also includes a third connecting pipe, which is connected to the heat exchanger and communicates with the fourth flow channel of the second heat exchange channel.

15. The heat exchange device according to claim 1, characterized in that, The heat exchanger includes an end plate, and the shut-off valve is fixedly connected to the end plate.

16. An air conditioner, characterized in that, Includes the heat exchange device according to any one of claims 1-15.

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