Air conditioner outdoor unit capable of being rapidly filled with refrigerants

Abstract

The utility model relates to an air conditioner outdoor unit capable of being filled with refrigerants quickly, which comprises a base plate, a heat exchanger, a compressor, a gas-liquid separator and a four-way reversing valve are mounted on the base plate, and a first pipe orifice of the compressor is communicated with a second pipe orifice of the gas-liquid separator. The heat exchanger is arranged on the periphery of the compressor, the gas-liquid separator and the four-way reversing valve in a surrounding mode, a third pipe opening of the compressor, the heat exchanger and a fourth pipe opening of the gas-liquid separator are communicated with the four-way reversing valve, the heat exchanger is connected with a high-pressure stop valve, and the other end, away from the heat exchanger, of the high-pressure stop valve is connected with a one-way throttling valve. The one-way throttle valve and the four-way reversing valve are both used for being connected with an air conditioner indoor unit. The device has the advantages of being safe, efficient, capable of reducing cost and compact in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioner outdoor units, in particular to an air-conditioner outdoor unit capable of rapid media filling. Background Art

[0002] In the existing air conditioner outdoor unit, in order to facilitate maintenance, a quick filling port is usually added to the outdoor unit to realize refrigerant filling without stopping the machine. However, the current solution has many welding points, and the more welding points, the higher the possibility of leakage. In addition, the existing technology also uses many valves, which increases the cost on the one hand, and also makes the air conditioner outdoor unit occupy a large space on the other hand, and there is also a risk of refrigerant backflow. Utility Model Content

[0003] The utility model aims to provide an air conditioner outdoor unit which is safe, efficient, can reduce costs and has a compact structure and can be quickly filled with refrigerant.

[0004] An air-conditioning outdoor unit with rapid refrigerant filling comprises a chassis, on which a heat exchanger, a compressor, a gas-liquid separator and a four-way reversing valve are mounted, a first pipe opening of the compressor is connected to a second pipe opening of the gas-liquid separator, the heat exchanger is arranged around the outer periphery of the compressor, the gas-liquid separator and the four-way reversing valve, a third pipe opening of the compressor, the heat exchanger and a fourth pipe opening of the gas-liquid separator are connected to the four-way reversing valve, the heat exchanger is connected to a high-pressure shut-off valve, the other end of the high-pressure shut-off valve away from the heat exchanger is connected to a one-way throttle valve, and the one-way throttle valve and the four-way reversing valve are both used to connect to the air-conditioning indoor unit.

[0005] In the above scheme, when the air conditioner is in the refrigeration cycle, the refrigerant can be added by opening the high-pressure stop valve. The one-way throttle valve ensures that the refrigerant can only be conducted when it flows from the air conditioner outdoor unit to the air conditioner indoor unit, avoiding the refrigerant backflow. The refrigerant enters the air conditioner indoor unit and absorbs heat and evaporates into low-pressure steam. The low-pressure steam enters the gas-liquid separator through the four-way reversing valve. The gas-liquid separator is used to separate the liquid refrigerant. Since the first pipe port of the compressor is connected to the second pipe port of the gas-liquid separator, the gas refrigerant can be drawn away by the compressor. The compressor compresses the gas refrigerant into high-pressure hot gas. The high-pressure hot gas enters the heat exchanger through the four-way reversing valve. The refrigerant condenses into low-temperature and low-pressure liquid in the heat exchanger. The liquid can enter the indoor unit and evaporate into low-temperature steam, thereby completing the cold cycle. The above structure can realize the addition of refrigerant without stopping the machine, reducing the risk of refrigerant leakage. The fewer valve bodies can make the air conditioner outdoor unit compact and low-cost.

[0006] Furthermore, the four-way reversing valve includes a first joint, a second joint, a third joint and a fourth joint, the first joint is connected to the third pipe port of the compressor, the second joint is connected to the heat exchanger, the third joint is connected to the fourth pipe port of the gas-liquid separator, and the fourth joint is connected to a low-pressure stop valve, which is used to connect to the indoor unit of the air conditioner.

[0007] In the above scheme, the first joint is connected to the third pipe opening of the compressor, the second joint is connected to the heat exchanger, the third joint is connected to the fourth pipe opening of the gas-liquid separator, and the low-pressure stop valve is respectively connected to the fourth joint and the air conditioner indoor unit, so that during the air conditioning cold cycle, the low-pressure steam evaporated by the air conditioner indoor unit can enter the gas-liquid separator, and the high-pressure hot gas compressed by the compressor into the gas refrigerant can enter the heat exchanger. The connection between the compressor, the heat exchanger, the gas-liquid separator and the low-pressure stop valve is simplified by the four-way reversing valve, thereby reducing the system complexity and potential leakage points.

[0008] Furthermore, the heat exchanger is connected to a first pipeline and a second pipeline, the first pipeline is connected to the second joint, and the second pipeline is connected to the high-pressure stop valve.

[0009] In the above solution, by connecting the first pipeline of the heat exchanger to the four-way reversing valve and the second pipeline to the high-pressure stop valve, the layout of the entire system can be made more compact and the installation process can be simpler.

[0010] Furthermore, the fourth joint is connected to a third pipeline, and the third pipeline is communicated with the low-pressure stop valve.

[0011] In the above solution, the third pipeline is directly connected to the fourth joint of the four-way reversing valve and the low-pressure stop valve, which simplifies the system layout, reduces the use of intermediate connectors, reduces the number of welding points, and thus reduces the risk of refrigerant leakage.

[0012] Furthermore, the heat exchanger includes a heat exchange body and heat exchange tubes, a plurality of the heat exchange tubes are passed through the heat exchange body, the heat exchange body is bent along the side of the chassis to form an accommodating space, and the compressor, gas-liquid separator and four-way reversing valve are located in the accommodating space.

[0013] In the above scheme, the bending design of the heat exchange body provides a compact space for accommodating key components, making the entire air-conditioning outdoor unit more compact and occupying less space. The compressor, gas-liquid separator and four-way reversing valve are placed in the accommodation space formed by the heat exchanger. This centralized layout reduces the length of the pipes between them, thereby reducing pressure loss and heat loss.

[0014] Furthermore, the heat exchange body has a rectangular structure.

[0015] In the above scheme, the rectangular heat exchange body can match the side of the chassis after bending, so that the internal space of the air conditioner outdoor unit can be fully utilized, and more heat exchange tubes can be arranged inside, thereby increasing the heat exchange area.

[0016] Furthermore, it also includes a mounting seat, which includes an integrally formed mounting portion and a protruding structure, four protruding structures are respectively connected to four ends of the mounting portion, the compressor is installed on the mounting portion, and connecting holes are provided on the four protruding structures.

[0017] In the above solution, the compressor is installed on the installation part for easy positioning and installation, and the connection holes on the raised structure provide a direct connection point between the compressor and the chassis, which simplifies the installation process and reduces installation time and complexity.

[0018] The utility model discloses an air conditioner outdoor unit with quick refrigerant filling, which has the beneficial effects of safety, high efficiency, cost reduction and compact structure. When the air conditioner is in refrigeration cycle, the refrigerant can be added by opening the high-pressure stop valve, the one-way throttle valve ensures that the refrigerant can be conducted only when it flows from the air conditioner outdoor unit to the air conditioner indoor unit, thereby avoiding the refrigerant backflow, the refrigerant enters the air conditioner indoor unit and absorbs heat to evaporate into low-pressure steam, the low-pressure steam enters the gas-liquid separator through the four-way reversing valve, the gas-liquid separator is used to separate the liquid refrigerant, the first pipe opening of the compressor is connected with the second pipe opening of the gas-liquid separator, so that the gas refrigerant can be drawn away by the compressor, the compressor compresses the gas refrigerant into high-pressure hot gas, the high-pressure hot gas enters the heat exchanger through the four-way reversing valve, the refrigerant condenses into low-temperature low-pressure liquid in the heat exchanger, the liquid can enter the indoor unit and evaporate into low-temperature steam, thereby completing the cold cycle, and the refrigerant can be added without stopping the machine, thereby reducing the risk of refrigerant leakage, and the fewer valve bodies can make the air conditioner outdoor unit compact in structure and low in cost.

[0019] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of an air conditioner outdoor unit for rapid refrigerant charging according to an embodiment.

[0022] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0023] Figure 3 for Figure 1 A partial enlarged view of point B in the middle.

[0024] Figure 4 for Figure 1 A partial enlarged view of point C in the middle.

[0025] Explanation of the accompanying drawings: 1. chassis; 2. heat exchanger; 21. heat exchange body; 22. heat exchange tube; 3. compressor; 31. first pipe opening; 32. third pipe opening; 4. gas-liquid separator; 41. second pipe opening; 42. fourth pipe opening; 5. four-way reversing valve; 51. first joint; 52. second joint; 53. third joint; 54. fourth joint; 6. high-pressure stop valve; 7. one-way throttle valve; 8. low-pressure stop valve; 9. first pipeline; 10. second pipeline; 11. third pipeline; 12. mounting seat; 121. mounting portion; 122. raised structure; 13. connecting hole. DETAILED DESCRIPTION

[0026] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0027] The following will further describe in detail an air conditioner outdoor unit with quick refrigerant filling according to the utility model in conjunction with specific embodiments and drawings.

[0028] like Figure 1 As shown, in a preferred embodiment, an air-conditioning outdoor unit with rapid refrigerant filling of the utility model comprises a chassis 1, on which a heat exchanger 2, a compressor 3, a gas-liquid separator 4 and a four-way reversing valve 5 are mounted, a first pipe opening 31 of the compressor 3 is connected to a second pipe opening 41 of the gas-liquid separator 4, the heat exchanger 2 is arranged around the compressor 3, the gas-liquid separator 4 and the outer periphery of the four-way reversing valve 5, a third pipe opening 32 of the compressor 3, the heat exchanger 2, and a fourth pipe opening 42 of the gas-liquid separator 4 are connected to the four-way reversing valve 5, the heat exchanger 2 is connected to a high-pressure stop valve 6, and the other end of the high-pressure stop valve 6 away from the heat exchanger 2 is connected to a one-way throttle valve 7, and the one-way throttle valve 7 and the four-way reversing valve 5 are both used to connect to the air-conditioning indoor unit.

[0029] In the above embodiment, when the air conditioner is in a refrigeration cycle, the refrigerant can be added by opening the high-pressure stop valve 6. The one-way throttle valve ensures that the refrigerant can only be conducted when it flows from the air conditioner outdoor unit to the air conditioner indoor unit, avoiding the refrigerant backflow. The refrigerant enters the air conditioner indoor unit and absorbs heat and evaporates into low-pressure steam. The low-pressure steam enters the gas-liquid separator 4 through the four-way reversing valve 5. The gas-liquid separator 4 is used to separate the liquid refrigerant. Since the first pipe opening 31 of the compressor 3 is connected with the second pipe opening 41 of the gas-liquid separator 4, the gas refrigerant can be drawn by the compressor 3. The compressor 3 compresses the gas refrigerant into high-pressure hot gas. The high-pressure hot gas enters the heat exchanger 2 through the four-way reversing valve 5. The refrigerant condenses into low-temperature and low-pressure liquid in the heat exchanger 2. The liquid can enter the indoor unit and evaporate into low-temperature steam, thereby completing the cold cycle. The above structure can realize the addition of refrigerant without stopping the machine, reducing the risk of refrigerant leakage. The fewer valve bodies can make the air conditioner outdoor unit compact and low in cost.

[0030] like Figure 1 and Figure 2 As shown, in some embodiments, the four-way reversing valve 5 includes a first joint 51, a second joint 52, a third joint 53 and a fourth joint 54, the first joint 51 is connected to the third pipe opening 32 of the compressor 3, the second joint 52 is connected to the heat exchanger 2, the third joint 53 is connected to the fourth pipe opening 42 of the gas-liquid separator 4, and the fourth joint 54 is connected to a low-pressure stop valve 8, which is used to connect to the air conditioner. The first joint 51 is connected to the third pipe opening 32 of the compressor 3, the second joint 52 is connected to the heat exchanger 2, the third joint 53 is connected to the fourth pipe opening 42 of the gas-liquid separator 4, and the low-pressure stop valve 8 is respectively connected to the fourth joint 54 and the air conditioner, so that during the cold cycle of the air conditioner, the low-pressure steam evaporated by the air conditioner can enter the gas-liquid separator 4, and the high-pressure hot gas compressed by the compressor 3 into the gas refrigerant can enter the heat exchanger 2. The connection between the compressor 3, the heat exchanger 2, the gas-liquid separator 4 and the low-pressure stop valve 8 is simplified by the four-way reversing valve 5, thereby reducing the system complexity and potential leakage points.

[0031] like Figure 1 As shown, in some embodiments, the heat exchanger 2 is connected with a first pipe 9 and a second pipe 10, the first pipe 9 is connected to the second joint 52, and the second pipe 10 is connected to the high-pressure stop valve 6. By connecting the first pipe 9 of the heat exchanger 2 to the four-way reversing valve 5 and the second pipe 10 to the high-pressure stop valve 6, the layout of the entire system can be made more compact and the installation process can be more convenient.

[0032] like Figure 1As shown, in some embodiments, the fourth joint 54 is connected to the third pipe 11, and the third pipe 11 is connected to the low-pressure stop valve 8. The third pipe 11 directly connects the fourth joint 54 of the four-way reversing valve 5 and the low-pressure stop valve 8, which simplifies the system layout, reduces the use of intermediate connectors, and reduces the number of welding points, thereby reducing the risk of refrigerant leakage.

[0033] like Figure 1 and Figure 3 As shown, in some embodiments, the heat exchanger 2 includes a heat exchange body 21 and a heat exchange tube 22, and a plurality of heat exchange tubes 22 are arranged in the heat exchange body 21. The heat exchange body 21 is bent along the side of the chassis 1 to form an accommodation space, and the compressor 3, the gas-liquid separator 4 and the four-way reversing valve 5 are located in the accommodation space. The bending design of the heat exchange body 21 provides a compact space for accommodating key components, making the entire air conditioner outdoor unit more compact and occupying less space. The compressor 3, the gas-liquid separator 4 and the four-way reversing valve 5 are concentrated in the accommodation space formed by the heat exchanger 2. This centralized layout reduces the length of the pipes between them, thereby reducing pressure loss and heat loss.

[0034] like Figure 1 and Figure 3 As shown, in some embodiments, the heat exchange body 21 is a rectangular structure. The rectangular heat exchange body 21 can be matched with the side of the chassis 1 after bending, so that the internal space of the air conditioner outdoor unit can be fully utilized, and more heat exchange tubes 22 can be arranged inside, thereby increasing the heat exchange area.

[0035] like Figure 1 and Figure 4 As shown, in some embodiments, a mounting base 12 is further included, the mounting base 12 includes an integrally formed mounting portion 121 and a protruding structure 122, four protruding structures 122 are respectively connected to four ends of the mounting portion 121, the compressor 3 is mounted on the mounting portion 121, and connection holes 13 are provided on the four protruding structures 122. Installing the compressor 3 on the mounting portion 121 facilitates positioning and installation, and the connection holes 13 on the protruding structures 122 provide a direct connection point between the compressor 3 and the chassis 1, simplifying the installation process and reducing installation time and complexity.

[0036] The utility model discloses a working principle and process of an air-conditioning outdoor unit with rapid refrigerant filling. In cooling mode, the high-pressure stop valve 6 is opened to add refrigerant. The refrigerant enters the air-conditioning indoor unit and absorbs heat and then evaporates to become low-pressure steam. The low-pressure steam enters the gas-liquid separator 4 through the four-way reversing valve 5. The gas-liquid separator 4 is used to separate the liquid refrigerant. Since the first pipe port 31 of the compressor 3 is connected with the second pipe port 41 of the gas-liquid separator 4, the gas refrigerant can be drawn away by the compressor 3. The compressor 3 compresses the gas refrigerant into high-pressure hot gas. The high-pressure hot gas enters the heat exchanger 2 through the four-way reversing valve 5. The refrigerant is condensed in the heat exchanger 2 into a low-temperature and low-pressure liquid. The liquid can enter the indoor unit and evaporate into low-temperature steam, thereby completing the cold cycle.

[0037] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An air conditioner outdoor unit with quick refrigerant filling, characterized in that: The invention comprises a chassis (1), on which a heat exchanger (2), a compressor (3), a gas-liquid separator (4) and a four-way reversing valve (5) are installed; a first pipe opening (31) of the compressor (3) is connected to a second pipe opening (41) of the gas-liquid separator (4); the heat exchanger (2) is arranged around the outer periphery of the compressor (3), the gas-liquid separator (4) and the four-way reversing valve (5); a third pipe opening (32) of the compressor (3), the heat exchanger (2) and a fourth pipe opening (42) of the gas-liquid separator (4) are connected to the four-way reversing valve (5); the heat exchanger (2) is connected to a high-pressure stop valve (6); the other end of the high-pressure stop valve (6) away from the heat exchanger (2) is connected to a one-way throttle valve (7); the one-way throttle valve (7) and the four-way reversing valve (5) are both used for connecting to an indoor unit of an air conditioner.

2. The air conditioner outdoor unit with quick refrigerant filling according to claim 1, characterized in that: The four-way reversing valve (5) comprises a first joint (51), a second joint (52), a third joint (53) and a fourth joint (54); the first joint (51) is connected to the second pipe port (41) of the compressor (3); the second joint (52) is connected to the heat exchanger (2); the third joint (53) is connected to the second pipe port (41) of the gas-liquid separator (4); the fourth joint (54) is connected to a low-pressure stop valve (8); and the low-pressure stop valve (8) is used to be connected to an indoor unit of the air conditioner.

3. The air conditioner outdoor unit with quick refrigerant filling according to claim 2, characterized in that: The heat exchanger (2) is connected to a first pipeline (9) and a second pipeline (10), the first pipeline (9) is connected to the second joint (52), and the second pipeline (10) is connected to the high-pressure stop valve (6).

4. The air conditioner outdoor unit with rapid refrigerant filling according to claim 2, characterized in that: The fourth joint (54) is connected to a third pipeline (11), and the third pipeline (11) is in communication with the low-pressure stop valve (8).

5. The air conditioner outdoor unit with quick refrigerant filling according to claim 1, characterized in that: The heat exchanger (2) comprises a heat exchange body (21) and heat exchange tubes (22), a plurality of the heat exchange tubes (22) being inserted through the heat exchange body (21), the heat exchange body (21) being bent along the side of the chassis (1) to form an accommodation space, and the compressor (3), the gas-liquid separator (4) and the four-way reversing valve (5) being located in the accommodation space.

6. The air conditioner outdoor unit with quick refrigerant filling according to claim 5, characterized in that: The heat exchange body (21) has a rectangular structure.

7. The air conditioner outdoor unit with rapid refrigerant filling according to claim 1, characterized in that: The invention also comprises a mounting seat (12), wherein the mounting seat (12) comprises an integrally formed mounting portion (121) and a protruding structure (122), wherein four protruding structures (122) are respectively connected to four ends of the mounting portion (121), and the compressor (3) is mounted on the mounting portion (121), and each of the four protruding structures (122) is provided with a connecting hole (13).

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