Heat pump air conditioning unit

Abstract

The utility model discloses a heat pump air conditioning unit, relates to the technical field of heat pumps, and aims to solve the problems of complex assembly process and low assembly efficiency of the conventional heat pump air conditioning unit. The utility model provides a heat pump air conditioning unit. The heat pump air conditioning unit comprises an outdoor unit. The outdoor unit comprises a compressor, an air supply pipeline, a first heat exchanger, a second heat exchanger and an outdoor heat exchanger. The compressor comprises an air supply port used for compressing a refrigerant. The air supply pipeline is communicated with the air supply port. The outdoor heat exchanger communicates with the compressor. The first heat exchanger communicates with the compressor, and the second heat exchanger communicates with the first heat exchanger and communicates with the outdoor heat exchanger and the compressor. The air supply pipeline communicates with the first heat exchanger, communicates with the compressor after heat exchange through the second heat exchanger and is used for supplying refrigerants to the compressor. The first installation part is arranged on the first heat exchanger, and the second heat exchanger is connected with the first installation part so that the second heat exchanger can be installed on the first heat exchanger. The heat pump air conditioning unit is used for adjusting the indoor temperature.

Description

Technical Field

[0001] The present application relates to the technical field of heat pumps, and in particular to a heat pump air-conditioning unit. Background Art

[0002] The air source heat pump air conditioning system is a form of air conditioning that uses outdoor ambient air as a cold and heat source for cooling and heating. It consumes a small amount of electricity to increase the low-level heat energy in the air into high-level heat energy for use. However, due to regional temperature reasons, the application of heat pump air conditioning units in northern China is subject to certain restrictions.

[0003] Air replenishment and enthalpy increase is a technology that replenishes medium-pressure gas in the compressor's intermediate compression chamber, which can increase the compressor's exhaust volume, reduce exhaust temperature, and improve heating capacity. It has been applied to heat pump air conditioning units and is one of the effective solutions to solve the problem of units operating in low-temperature and harsh working conditions.

[0004] However, there are many system parts in the air-injection enthalpy-increasing heat pump air-conditioning unit, the pipeline design is complex, the number of materials is large and the process is complicated during assembly, and the assembly efficiency is low. Utility Model Content

[0005] The present application provides a heat pump air conditioning unit, which is used to solve the problems of complex assembly process and low assembly efficiency of existing heat pump air conditioning units.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] An embodiment of the present application provides a heat pump air-conditioning unit, including: an outdoor unit.

[0008] The outdoor unit includes a compressor, an air supply pipe, a first heat exchanger, a second heat exchanger and an outdoor heat exchanger. The compressor includes an air supply port for compressing the refrigerant. The air supply port of the compressor supplies medium-temperature and low-pressure refrigerant gas, which is sent back to the compressor in advance to reduce the operating temperature of the compressor, thereby improving the operating efficiency of the compressor. Therefore, the efficiency of the compressor can be improved by setting the air supply port.

[0009] It is understandable that, in order to transfer the refrigerant to the air supply port of the compressor, the outdoor unit further includes an air supply pipe, and the air supply pipe is connected to the air supply port.

[0010] The outdoor heat exchanger is connected to the compressor and is used to cool the refrigerant. The first heat exchanger is connected to the compressor. The second heat exchanger is connected to the first heat exchanger and is connected to the outdoor heat exchanger and the compressor.

[0011] In this way, the compressor, the outdoor heat exchanger, the first heat exchanger and the second heat exchanger are connected through the pipeline to form a complete circuit, which can perform a cooling or heating cycle.

[0012] The air supply pipeline is connected to the first heat exchanger, and is connected to the compressor after heat exchange through the second heat exchanger, so as to supplement the refrigerant to the compressor.

[0013] The outdoor unit further includes a first mounting member, which is disposed on the first heat exchanger, and the second heat exchanger is connected to the first mounting member so that the second heat exchanger is mounted on the first heat exchanger.

[0014] It is understandable that the second heat exchanger is mounted on the first heat exchanger via the first mounting member, which can simplify the assembly process and improve assembly efficiency. In addition, it can also improve assembly consistency and eliminate assembly dimensional tolerance.

[0015] Therefore, the heat pump air-conditioning unit provided in the embodiment of the present application can solve the problems of complex assembly process and low assembly efficiency of the heat pump air-conditioning unit.

[0016] In some embodiments, the heat pump air conditioning unit further includes: a liquid reservoir and a second mounting member. The liquid reservoir is in communication with both the first heat exchanger and the second heat exchanger, and the refrigerant in one of the first heat exchanger and the second heat exchanger enters the other of the first heat exchanger and the second heat exchanger after passing through the liquid reservoir.

[0017] The second mounting member is disposed on the first heat exchanger, and the liquid reservoir is connected to the second mounting member so that the liquid reservoir is mounted on the first heat exchanger.

[0018] In some embodiments, the heat pump air conditioning unit further includes: a first filling pipe, a first filling valve, a second filling pipe, and a second filling valve. One end of the first filling pipe is connected to the pipeline between the outdoor heat exchanger and the compressor, and the other end of the first filling pipe is connected to the first filling valve. One end of the second filling pipe is connected to the pipeline between the first heat exchanger and the compressor, and the other end of the second filling pipe is connected to the second filling valve.

[0019] The first charging valve and the second charging valve are connected to the second mounting member so that the first charging valve and the second charging valve are mounted on the first heat exchanger.

[0020] In some embodiments, the first heat exchanger is a shell and tube heat exchanger, and is arranged in parallel with the outdoor heat exchanger along a height direction perpendicular to the shell and tube heat exchanger.

[0021] The first mounting member is arranged on the top of the first heat exchanger, and the first mounting member includes a first side and a second side opposite to each other. The first side of the first mounting member is closer to the outdoor heat exchanger than the second side of the first mounting member. The first side of the first mounting member is provided with a mounting portion, and the mounting portion is connected to the second heat exchanger.

[0022] In some embodiments, the top of the first heat exchanger includes a first connection portion and a second connection portion, the first connection portion and the second connection portion are spaced apart, the first connection portion is farther away from the outdoor heat exchanger than the second connection portion, and the first mounting member is disposed at the first connection portion.

[0023] In some embodiments, the compressor and the first heat exchanger are spaced apart, the liquid reservoir is located between the compressor and the first heat exchanger, and the second mounting member is disposed on a side of the first heat exchanger close to the compressor.

[0024] In some embodiments, the outdoor unit includes a casing, the casing includes a compressor cavity and a heat exchange cavity, and the compressor cavity and the heat exchange cavity are spaced apart along a first direction.

[0025] The outdoor heat exchanger is arranged in the heat exchange cavity, the compressor and the first heat exchanger are arranged in the compressor cavity, the compressor and the first heat exchanger are arranged at intervals along the second direction, and the angle between the first direction and the second direction is greater than 0° and less than 90°.

[0026] In some embodiments, the second mounting member includes a connecting plate and a mounting plate, the connecting plate is connected to the first heat exchanger, the mounting plate is spaced apart from the first heat exchanger and connected to one end of the connecting plate away from the first heat exchanger, and the liquid reservoir is connected to one side of the mounting plate.

[0027] In some embodiments, the second mounting member further comprises: a first fixing plate, the first fixing plate is located on a side of the liquid reservoir away from the mounting plate and connected to the mounting plate, and the first fixing plate is used to mount the first filling valve. And / or, a second fixing plate, the second fixing plate is located on a side of the mounting plate away from the liquid reservoir and connected to the mounting plate, and the second fixing plate is used to mount the second filling valve.

[0028] The embodiment of the present application also provides a heat pump air conditioning unit, including: an outdoor unit.

[0029] The outdoor unit includes a compressor, an air supply pipe, a first heat exchanger, a second heat exchanger and an outdoor heat exchanger. The compressor includes an air supply port for compressing refrigerant. The air supply pipe is connected to the air supply port. The outdoor heat exchanger is connected to the compressor.

[0030] The first heat exchanger is in communication with the compressor, and the second heat exchanger is in communication with the first heat exchanger and with the outdoor heat exchanger and the compressor.

[0031] The air supply pipeline is connected to the first heat exchanger, and is connected to the compressor after heat exchange through the second heat exchanger, so as to supplement the refrigerant to the compressor.

[0032] The second heat exchanger is mounted on the first heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the principle structure of a heat pump air conditioning unit provided in an embodiment of the present application;

[0034] Figure 2 One of the structural schematic diagrams of the outdoor unit provided in the embodiment of the present application;

[0035] Figure 3 The second structural diagram of the outdoor unit provided in the embodiment of the present application;

[0036] Figure 4 A schematic diagram of the explosion structure of an outdoor unit provided in an embodiment of the present application;

[0037] Figure 5 A schematic diagram of the structure of a compressor provided in an embodiment of the present application;

[0038] Figure 6 One of the structural schematic diagrams of the first heat exchanger provided in the embodiment of the present application;

[0039] Figure 7 The second structural schematic diagram of the first heat exchanger provided in the embodiment of the present application;

[0040] Figure 8 The third structural diagram of the outdoor unit provided in the embodiment of the present application;

[0041] Fig. 9 for Figure 8 A schematic diagram of a partial structure of an outdoor unit provided in an embodiment of the present application;

[0042] Fig.10 The fourth structural diagram of the outdoor unit provided in the embodiment of the present application;

[0043] Fig.11 A fifth structural diagram of an outdoor unit provided in an embodiment of the present application;

[0044] Fig.12 The third structural schematic diagram of the first heat exchanger provided in the embodiment of the present application;

[0045] Fig.13 A fourth structural schematic diagram of the first heat exchanger provided in an embodiment of the present application;

[0046] Fig.14 This is the fifth structural schematic diagram of the first heat exchanger provided in the embodiment of the present application.

[0047] Reference numerals:

[0048] 1. heat pump air conditioning unit; 10. indoor heat exchanger; 20. outdoor unit; 201. housing; 2011. compressor cavity; 2012. heat exchange cavity; 2013. fan; 30. compressor; 301. air outlet; 302. air inlet; 303. air supply port; 40. air supply pipeline; 50. first heat exchanger; 501. first connection part; 502. second connection part; 60. second heat exchanger; 70. outdoor heat exchanger; 80. first mounting member; 8 01, first side; 8011, mounting portion; 802, second side; 803, first mounting hole; 90, second mounting member; 901, connecting plate; 902, mounting plate; 903, first fixing plate; 904, second fixing plate; 905, second mounting hole; 906, third mounting hole; 907, fourth mounting hole; 100, liquid reservoir; 110, first filling pipe; 120, first filling valve; 130, second filling pipe; 140, second filling valve;

[0049] F1, first direction; F2, second direction. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0051] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0052] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0053] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, when describing a pipeline, the "connected" and "connection" used in this application have the meaning of conduction. The specific meaning needs to be understood in conjunction with the context.

[0054] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0055] The air source heat pump air conditioner 1 is an air conditioner that uses outdoor ambient air as a cold source for cooling and heating. It consumes a small amount of electricity to increase the low-level heat energy in the air into high-level heat energy for use. However, due to regional temperature reasons, the application of the heat pump air conditioner 1 in the northern region is subject to certain restrictions.

[0056] As the outdoor temperature continues to drop, the refrigerant suction specific volume of the air source heat pump air-conditioning unit 1 increases, and the suction volume of the heat pump air-conditioning unit 1 drops rapidly, thereby reducing the heating capacity of the heat pump air-conditioning unit 1. As the outdoor temperature drops, the indoor heating heat load will continue to increase, and the heating capacity of the heat pump air-conditioning unit 1 cannot meet the maximum indoor heating heat load.

[0057] At the same time, due to the increasing compression ratio of the compressor 30, the exhaust temperature of the compressor 30 rises rapidly. At a lower outdoor temperature, the compressor 30 will automatically shut down for protection to prevent overheating, which makes the heat pump air conditioning unit 1 only operate at a not too low outdoor temperature.

[0058] In view of the limitations of the traditional air source heat pump air conditioning unit 1, a gas supplement and enthalpy increase technology is proposed. The gas supplement and enthalpy increase technology is to supplement the medium-pressure gas in the compression intermediate chamber of the compressor 30, thereby increasing the exhaust volume of the compressor 30, further improving the efficiency of the compressor 30, and improving the heating capacity. It has been applied to the heat pump air conditioning unit 1 and is one of the effective solutions to solve the problem of the unit operating under low temperature and harsh working conditions.

[0059] See also Figure 1The basic principle of heating by the heat pump air conditioning unit 1 is to utilize the heat pump circulation system, compress the low-temperature and low-pressure refrigerant into a high-temperature and high-pressure gas through the compressor 30, and then exchange heat between the high-temperature and high-pressure gas and the low-temperature refrigerant in the indoor circulation system through the first heat exchanger 50, so that it is cooled into a medium-temperature and high-pressure liquid. Next, the pressure and temperature of the liquid are reduced through the throttle valve to turn it into a low-temperature and low-pressure liquid, and then the low-temperature and low-pressure liquid is evaporated into a low-temperature and low-pressure gas through the outdoor heat exchanger 70, completing a cycle. After the low-temperature refrigerant in the indoor circulation system absorbs heat in the first heat exchanger 50, it exchanges heat with the indoor air through the indoor heat exchanger 10 to complete the heating of the indoor air.

[0060] The air-injection enthalpy-increasing heat pump air-conditioning unit 1 is provided with a second heat exchanger 60 after the first heat exchanger 50 and before the throttling device, so as to extract a part of the medium-temperature and high-pressure liquid, convert it into low-temperature and low-pressure liquid through a small throttle valve, and then exchange heat in the second heat exchanger 60 to form medium-temperature and low-pressure gas, which is sent back to the compressor 30 in advance, thereby increasing the exhaust volume of the compressor 30 and thus improving the operating efficiency.

[0061] This heating method can effectively provide indoor heat even in low temperature environments and is an efficient and energy-saving heating method.

[0062] The basic principle of refrigeration of the air-compensating enthalpy-increasing heat pump air-conditioning unit 1 is to utilize the heat pump circulation system, compress the low-temperature and low-pressure refrigerant vapor into a high-temperature and high-pressure gas through the compressor 30, and then exchange heat with the outdoor air through the outdoor heat exchanger 70 to condense the refrigerant into liquid. The liquid refrigerant enters the first heat exchanger 50 after being decompressed by the expansion valve, absorbs the heat of the low-temperature refrigerant in the indoor circulation system, and evaporates into low-temperature and low-pressure steam, completing a cycle. After the high-temperature refrigerant in the indoor circulation system releases heat in the first heat exchanger 50, it exchanges heat with the indoor air through the indoor heat exchanger 10 to complete the cooling of the indoor air.

[0063] On this basis, the air-injection enthalpy-increasing heat pump air-conditioning unit 1 is to install a second heat exchanger 60 after the first heat exchanger 50 and before the throttle valve, extract a portion of liquid, and send it back to the compressor 30 in advance, so as to reduce the working temperature of the compressor 30, thereby improving the operating efficiency. At the same time, by adding an appropriate amount of refrigerant, the refrigerant circulation volume in the unit is maintained to ensure the refrigeration efficiency and stable performance.

[0064] However, the air-injection enthalpy-increasing heat pump air-conditioning unit 1 has a compact space and a complex piping design. The unit is also designed with system parts that need to be fixed. The number of materials required for assembly is large and the process is complicated, the assembly efficiency is low, and the assembly consistency is difficult to ensure.

[0065] Based on this, the embodiment of the present application provides a heat pump air conditioning unit 1, see Figure 2The heat pump air conditioning unit 1 includes: an outdoor unit 20.

[0066] The outdoor unit (20) includes a compressor (30), an air supply pipe (40), a first heat exchanger (50) and a second heat exchanger (60).

[0067] See also Figure 3 as well as Figure 4 The outdoor unit further includes an outdoor heat exchanger 70. The outdoor heat exchanger 70 is communicated with the compressor 30 and is used to cool the refrigerant.

[0068] The first heat exchanger 50 is in communication with the compressor 30. The second heat exchanger 60 is in communication with the first heat exchanger 50, and is in communication with the outdoor heat exchanger 70 and the compressor 30.

[0069] In this way, the compressor 30, the outdoor heat exchanger 70, the first heat exchanger 50 and the second heat exchanger 60 are connected through the pipeline to form a complete loop, which can perform a cooling or heating cycle. The indoor heat exchanger 10 and the outdoor heat exchanger 70 can both be used as a condenser or an evaporator. When the indoor heat exchanger 10 is used as a condenser, the air conditioner is used as a heater in the heating mode, and when the indoor heat exchanger 10 is used as an evaporator, the air conditioner is used as a cooler in the cooling mode.

[0070] For details, see Figure 5 In addition to the gas outlet 301 and the gas inlet 302, the compressor 30 also includes a gas inlet 303, and the compressor 30 is used to compress the refrigerant. The gas inlet 303 of the compressor 30 is filled with medium-pressure refrigerant gas, and the medium-pressure refrigerant gas is sent back to the compressor 30 in advance, which increases the amount of refrigerant gas and further improves the operating efficiency of the compressor 30. Therefore, by setting the gas inlet 303, the exhaust volume of the compressor 30 can be increased, and the efficiency of the compressor 30 can be further improved.

[0071] It is understandable that, in order to transmit the refrigerant to the air supply port 303 of the compressor 30 , the outdoor unit 20 further includes an air supply pipe 40 , and the air supply pipe 40 is connected to the air supply port 303 .

[0072] The air supply pipe 40 is communicated with the first heat exchanger 50 , and is communicated with the compressor 30 after heat exchange through the second heat exchanger 60 , so as to supply the compressor 30 with refrigerant.

[0073] During assembly, the second heat exchanger 60 is installed on the first heat exchanger 50, and there is no need to adjust the position of the second heat exchanger 60 again according to the position adaptability of the pipeline and other equipment after assembly, which can simplify the assembly process and improve assembly efficiency. In addition, since the second heat exchanger 60 is fixedly installed on the first heat exchanger 50, it is also convenient to arrange the pipeline between the two heat exchangers.

[0074] Therefore, the heat pump air conditioning unit 1 provided in the embodiment of the present application can solve the problems of complex assembly process and low assembly efficiency of the heat pump air conditioning unit 1.

[0075] See also Figure 6 In some embodiments, the outdoor unit 20 further includes a first mounting member 80 , which is disposed on the first heat exchanger 50 , and the second heat exchanger 60 is connected to the first mounting member 80 so that the second heat exchanger 60 is mounted on the first heat exchanger 50 .

[0076] It is understandable that during assembly, the second heat exchanger 60 is mounted on the first heat exchanger 50 through the first mounting member 80, and the position of the second heat exchanger 60 is determined by the position of the first mounting member 80. There is no need to adaptively adjust the position of the second heat exchanger 60 again after assembly, which can simplify the assembly process and improve assembly efficiency. In addition, assembly consistency can be improved and assembly dimension tolerance can be eliminated.

[0077] For example, in order to facilitate processing, the first mounting member 80 may be an integrally formed sheet metal member. Figure 6 Combined with Figure 7 The first mounting member 80 is disposed on the top of the first heat exchanger 50. The first mounting member 80 includes a first side 801 and a second side 802 that are opposite to each other. The first side 801 of the first mounting member 80 is closer to the outdoor heat exchanger 70 than the second side 802 of the first mounting member 80. The first side 801 of the first mounting member 80 is provided with a mounting portion 8011, and the mounting portion 8011 is connected to the second heat exchanger 60.

[0078] In this way, the second heat exchanger 60 is installed on the top of the first heat exchanger 50 through the mounting portion 8011 of the first mounting member 80, and the second heat exchanger 60 is connected to the air supply pipe 40. The design space of the air supply pipe 40 and the air intake pipe of the compressor 30 can be distinguished, there is no intersection between the pipes, and the assembly does not interfere with each other.

[0079] In some embodiments, see again Figure 7 The top of the first heat exchanger 50 includes a first connecting portion 501 and a second connecting portion 502 .

[0080] In this way, the top of the first heat exchanger 50 has two connection parts, and the first connection part 501 and the second connection part 502 are arranged at an interval to release heat. The first connection part 501 is farther away from the outdoor heat exchanger 70 than the second connection part 502.

[0081] It is understandable that, in order to meet the pipe routing requirements inside the heat pump air conditioning unit 1, the first mounting member 80 is disposed on the first connecting portion 501. The second connecting portion 502 is used to hoist the first heat exchanger 50 when assembling the air conditioner, so that the first heat exchanger 50 is more convenient to install.

[0082] Exemplarily, a first mounting hole 803 is formed on the first mounting member 80, and the second heat exchanger 60 can be mounted on the first heat exchanger 50 by means of screws, bolts, etc.

[0083] In some embodiments, see Figure 8 The heat pump air conditioning unit 1 further includes: a liquid storage tank 100 and a second mounting member 90 .

[0084] It is understandable that the refrigerant flow rate required by the heat pump air-conditioning unit 1 in the heating mode and the cooling mode is different. The liquid storage tank 100 can help balance the refrigerant flow rate and ensure the stability of the refrigerant flow rate under different working conditions, thereby ensuring the normal operation of the heat pump air-conditioning unit 1.

[0085] In this way, the accumulator 100 is connected to both the first heat exchanger 50 and the second heat exchanger 60, and the refrigerant in one of the first heat exchanger 50 and the second heat exchanger 60 can enter the other of the first heat exchanger 50 and the second heat exchanger 60 through the accumulator 100. When the heat pump air conditioner 1 is cooling, the refrigerant in the first heat exchanger 50 enters the second heat exchanger 60 through the accumulator 100. When the heat pump air conditioner 1 is heating, the refrigerant in the second heat exchanger 60 enters the first heat exchanger 50 through the accumulator 100.

[0086] In order to further simplify the assembly process and improve assembly efficiency, the heat pump air conditioning unit 1 further sets the second mounting member 90 on the first heat exchanger 50 and connects the liquid reservoir 100 to the second mounting member 90 so that the liquid reservoir 100 is installed on the first heat exchanger 50 .

[0087] Exemplarily, the second mounting member 90 may be an integrally formed sheet metal member.

[0088] In some embodiments, see again Figure 8 Combined with Fig. 9 The heat pump air conditioning unit 1 further includes: a first filling pipe 110, a first filling valve 120, a second filling pipe 130 and a second filling valve 140. One end of the first filling pipe 110 is connected to the pipeline between the outdoor heat exchanger 70 and the compressor 30, and the other end of the first filling pipe 110 is connected to the first filling valve 120. One end of the second filling pipe 130 is connected to the pipeline between the first heat exchanger 50 and the compressor 30, and the other end of the second filling pipe 130 is connected to the second filling valve 140.

[0089] In this way, when the condensate needs to be filled or supplemented, the condensate can be filled or supplemented into the heat pump air conditioning unit 1 through the first filling pipe 110 and the second filling pipe 130 by connecting the first filling valve 120 and the second filling valve 140 respectively.

[0090] In order to further improve the assembly consistency of the heat pump air conditioning unit 1 , the first filling valve 120 and the second filling valve 140 are connected to the second mounting member 90 so that the first filling valve 120 and the second filling valve 140 are installed on the first heat exchanger 50 .

[0091] In summary, the second heat exchanger 60 is installed on the first heat exchanger 50 through the first mounting member 80, and the liquid storage tank, the first filling valve 120 and the second filling valve 140 are installed on the first heat exchanger 50 through the second mounting member 90, which simplifies the installation steps, improves the installation efficiency, and improves the overall assembly consistency of the heat pump air conditioning unit 1. In addition, it can also make detection and maintenance more convenient.

[0092] In some embodiments, the first heat exchanger 50 is a shell and tube heat exchanger, and is disposed in parallel with the outdoor heat exchanger 70 along a height direction perpendicular to the shell and tube heat exchanger.

[0093] It can be understood that the shell and tube heat exchanger has a simple structure, low cost, can be used under high temperature and high pressure, has a wide range of applications, and is suitable for use in the heat pump air conditioning unit 1 .

[0094] See also Fig.10 In order to allow a certain space between the compressor 30 and the first heat exchanger 50 for installing pipelines, the compressor 30 and the first heat exchanger 50 are arranged at an interval.

[0095] It is understandable that the compressor 30 and the first heat exchanger 50 are spaced apart, leaving a certain installation space, and the liquid accumulator 100 is arranged between the compressor 30 and the first heat exchanger 50. Among them, the liquid accumulator 100 is installed on the second mounting member 90 of the first heat exchanger 50, and the second mounting member 90 needs to be arranged on the side of the first heat exchanger 50 close to the compressor 30.

[0096] In this way, the internal space of the heat pump air conditioning unit 1 is fully utilized and the assembly consistency is also improved.

[0097] In some embodiments, see Fig.11 The outdoor unit 20 includes a casing 201, and the casing 201 includes a compressor chamber 2011 and a heat exchange chamber 2012. The compressor chamber 2011 and the heat exchange chamber 2012 are arranged at intervals along the first direction F1.

[0098] The outdoor heat exchanger 70 is disposed in the heat exchange chamber 2012, and a fan 2013 is also disposed in the heat exchange chamber 2012 for cooling the outdoor heat exchanger 70. The compressor 30 and the first heat exchanger 50 are disposed in the compressor chamber 2011, and the compressor 30 and the first heat exchanger 50 are spaced apart along the second direction F2, and the angle between the first direction F1 and the second direction F2 is greater than 0° and less than 90°.

[0099] In this way, the compressor 30 and the first heat exchanger 50 are at an angle in the compressor cavity 2011, which can fully utilize the space of the compressor cavity 2011, reduce the volume of the compressor cavity 2011, further reduce the volume of the outdoor unit 20, and can be applied to more scenarios.

[0100] In some embodiments, see Fig.12 Combined with Fig. 9 The second mounting member 90 includes a connecting plate 901 and a mounting plate 902. The connecting plate 901 is connected to the first heat exchanger 50. The mounting plate 902 is spaced apart from the first heat exchanger 50 and connected to an end of the connecting plate 901 away from the first heat exchanger 50. The liquid reservoir 100 is connected to one side of the mounting plate 902 (such as Fig.12 side of the display).

[0101] It can be understood that the first heat exchanger 50 is provided with multiple groups of pipelines, the second mounting member 90 is provided as a connecting plate 901 and a mounting plate 902, and the connecting plate 901 is connected to the first heat exchanger 50, the mounting plate 902 is spaced apart from the first heat exchanger 50, and is connected to an end of the connecting plate 901 away from the first heat exchanger 50, and the pipeline can pass between the mounting plate 902 and the first heat exchanger 50. Therefore, by providing the connecting plate 901, the mounting plate 902 can avoid the pipeline, and the pipeline installation will not be affected.

[0102] In this way, the liquid reservoir 100 can be connected to one side of the mounting plate 902, and then connected to the first heat exchanger 50, which can improve assembly consistency, improve installation efficiency, and reasonably utilize the space of the outdoor unit 20 of the heat pump air conditioning unit 1. In addition, during maintenance, it is convenient to detect and repair the liquid reservoir 100.

[0103] Illustratively, a second mounting hole 905 is provided on the mounting plate 902 , and the liquid reservoir 100 can be mounted at the second mounting hole 905 by means of screws, bolts, etc.

[0104] In some embodiments, see Fig.13 Combined with Fig. 9 In order to facilitate the installation of the first filling valve 120, the second mounting member 90 also includes a first fixing plate 903. The first fixing plate 903 is disposed on a side of the liquid reservoir 100 away from the mounting plate 902 and connected to the mounting plate 902. The first filling valve 120 is installed on the first fixing plate 903 and is disposed on the same side as the liquid reservoir 100.

[0105] Illustratively, a third mounting hole 906 is opened on the first fixing plate 903 , and the first filling valve 120 can be installed at the third mounting hole 906 by means of screws, bolts, etc.

[0106] At the same time, in order to fix the second filling valve 140, a fourth mounting hole 907 is also opened on the mounting plate 902, and the second filling valve 140 is mounted on the other side of the mounting plate 902 (such as Fig.12 side B in the figure).

[0107] In this way, the first filling valve 120 and the second filling valve 140 can be installed on the first heat exchanger 50 through the second mounting member 90, thereby improving the assembly efficiency and eliminating the dimensional tolerance of the assembly. In addition, it is convenient to fill and replenish the condensate of the heat pump air conditioning unit 1.

[0108] In some embodiments, see Fig.14 In order to facilitate the installation of the first filling valve 120 and the second filling valve 140, the second mounting member 90 further includes a first fixing plate 903 and a second fixing plate 904. The first fixing plate 903 is disposed on a side of the liquid reservoir 100 away from the mounting plate 902 and connected to the mounting plate 902. The first filling valve 120 is mounted on the first fixing plate 903 and disposed on the same side as the liquid reservoir 100. The second fixing plate 904 is disposed on a side of the mounting plate 902 away from the liquid reservoir 100 and connected to the mounting plate 902. The second filling valve 140 is mounted on the second fixing plate 904 and disposed on the opposite side of the liquid reservoir 100.

[0109] Exemplarily, a third mounting hole 906 is opened on the first fixing plate 903, and a fourth mounting hole 907 is opened on the second fixing plate 904. The first filling valve 120 and the second filling valve 140 can be respectively installed at the third mounting hole 906 and the fourth mounting hole 907 by means of screws, bolts, etc.

[0110] In this way, the first filling valve 120 and the second filling valve 140 can be installed on the first heat exchanger 50 through the second mounting member 90, thereby improving the assembly efficiency and eliminating the dimensional tolerance of the assembly. In addition, the first filling valve 120 and the second filling valve 140 are fixed on the second mounting member 90, which also facilitates the filling and replenishment of condensate to the heat pump air conditioning unit 1.

[0111] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A heat pump air conditioning unit, characterized in that: include: Outdoor unit; The outdoor unit comprises: A compressor, including a gas supply port, for compressing a refrigerant; An air supply pipeline, the air supply pipeline is connected to the air supply port; an outdoor heat exchanger, connected to the compressor; a first heat exchanger, in communication with the compressor; a second heat exchanger, in communication with the first heat exchanger, and in communication with the outdoor heat exchanger and the compressor; The air supply pipeline is connected to the first heat exchanger, and is connected to the compressor after heat exchange through the second heat exchanger, so as to supply refrigerant to the compressor; A first mounting member is provided on the first heat exchanger, and the second heat exchanger is connected to the first mounting member so that the second heat exchanger is mounted on the first heat exchanger.

2. The heat pump air conditioning unit according to claim 1, characterized in that: The heat pump air conditioning unit also includes: a liquid accumulator, the liquid accumulator being in communication with both the first heat exchanger and the second heat exchanger, and the refrigerant in one of the first heat exchanger and the second heat exchanger passes through the liquid accumulator and enters the other of the first heat exchanger and the second heat exchanger; A second mounting member is provided on the first heat exchanger, and the liquid reservoir is connected to the second mounting member so that the liquid reservoir is mounted on the first heat exchanger.

3. The heat pump air conditioning unit according to claim 2, characterized in that: The heat pump air conditioning unit also includes: a first charging pipe and a first charging valve, wherein one end of the first charging pipe is connected to a pipeline between the outdoor heat exchanger and the compressor, and the other end of the first charging pipe is connected to the first charging valve; a second filling pipe and a second filling valve, wherein one end of the second filling pipe is connected to the pipeline between the first heat exchanger and the compressor, and the other end of the second filling pipe is connected to the second filling valve; the first filling valve and the second filling valve are connected to the second mounting member so that the first filling valve and the second filling valve are installed on the first heat exchanger.

4. The heat pump air conditioning unit according to claim 1, characterized in that: The first heat exchanger is a shell and tube heat exchanger, and is arranged in parallel with the outdoor heat exchanger along a height direction perpendicular to the shell and tube heat exchanger; The first mounting member is arranged on the top of the first heat exchanger, and the first mounting member includes a first side and a second side opposite to each other. The first side of the first mounting member is closer to the outdoor heat exchanger than the second side of the first mounting member. The first side of the first mounting member is provided with a mounting portion, and the mounting portion is connected to the second heat exchanger.

5. The heat pump air conditioning unit according to claim 4, characterized in that: The top of the first heat exchanger includes a first connection part and a second connection part, the first connection part and the second connection part are arranged at an interval, the first connection part is farther away from the outdoor heat exchanger than the second connection part, and the first mounting part is arranged at the first connection part.

6. The heat pump air conditioning unit according to claim 2, characterized in that: The compressor and the first heat exchanger are arranged at an interval, the liquid accumulator is located between the compressor and the first heat exchanger, and the second mounting member is arranged on a side of the first heat exchanger close to the compressor.

7. The heat pump air conditioning unit according to claim 6, characterized in that: The outdoor unit comprises a casing, the casing comprises a compressor cavity and a heat exchange cavity, the compressor cavity and the heat exchange cavity are arranged at intervals along a first direction; The outdoor heat exchanger is arranged in the heat exchange cavity, the compressor and the first heat exchanger are arranged in the compressor cavity, the compressor and the first heat exchanger are arranged at intervals along the second direction, and the angle between the first direction and the second direction is greater than 0° and less than 90°.

8. The heat pump air conditioning unit according to claim 3, characterized in that: The second mounting member includes a connecting plate and a mounting plate, the connecting plate is connected to the first heat exchanger, the mounting plate is spaced apart from the first heat exchanger and connected to one end of the connecting plate away from the first heat exchanger, and the liquid reservoir is connected to one side of the mounting plate.

9. The heat pump air conditioning unit according to claim 8, characterized in that: The second mounting member further comprises: a first fixing plate, the first fixing plate being located at a side of the liquid reservoir away from the mounting plate and connected to the mounting plate, the first fixing plate being used for mounting the first filling valve; and / or, A second fixing plate, the second fixing plate is located on a side of the mounting plate away from the liquid reservoir and is connected to the mounting plate, and the second fixing plate is used for mounting the second filling valve.

10. A heat pump air conditioning unit, characterized in that: include: Outdoor unit; The outdoor unit comprises: A compressor, including a gas supply port, for compressing a refrigerant; an outdoor heat exchanger, connected to the compressor; An air supply pipeline, the air supply pipeline is connected to the air supply port; a first heat exchanger, in communication with the compressor; a second heat exchanger, in communication with the first heat exchanger, and in communication with the outdoor heat exchanger and the compressor; The air supply pipeline is connected to the first heat exchanger, and is connected to the compressor after heat exchange through the second heat exchanger, so as to supply refrigerant to the compressor; The second heat exchanger is mounted on the first heat exchanger.

Images