Air conditioner

Abstract

The air conditioner comprises a compressor, a condenser, an outdoor fan, an evaporator and a heat exchanger, the compressor is provided with an exhaust port and an air return port, the condenser is provided with a first inlet and a first outlet, the evaporator is provided with a second inlet and a second outlet, and the second inlet communicates with the first outlet of the condenser; therefore, a loop for refrigerant circulation is formed among the compressor, the condenser and the evaporator. The heat exchanger is provided with a third inlet and a third outlet, the third inlet communicates with the second outlet of the evaporator, and the third outlet communicates with the air return port of the compressor, so that the heat exchanger is located on a refrigerant circulation loop, the heat exchanger and the condenser are oppositely arranged, and the heat exchanger is configured to conduct heat exchange with airflow sucked by the outdoor fan; and cold air flow is formed to cool the condenser. According to the air conditioner, the problems that the pressure of an air conditioning system is too high and the energy efficiency is low due to the fact that the heat dissipation effect of the condenser is limited in the high-temperature environment can be effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to an air conditioner. Background Art

[0002] With the improvement of people's living standards, air conditioners have become an indispensable household appliance, especially in high temperature environments, where the cooling function of air conditioners plays a huge role.

[0003] In the related art, air cooling or condensed water is usually used to dissipate heat from the air conditioner condenser. However, when the external ambient temperature is high, the cooling effect of the above heat dissipation method is limited, resulting in excessively high air conditioner coil temperature and increased system pressure, thereby affecting the energy efficiency of the air conditioner. Utility Model Content

[0004] The embodiment of the present application discloses an air conditioner, which can effectively solve the problem that the heat dissipation effect of the condenser is limited in a high-temperature environment, resulting in excessive pressure and low energy efficiency of the air-conditioning system.

[0005] In order to achieve the above-mentioned object, the embodiment of the present application discloses an air conditioner, comprising:

[0006] A compressor having an exhaust port and an air return port;

[0007] a condenser having a first inlet and a first outlet, wherein the first inlet is in communication with the exhaust port;

[0008] an outdoor fan, the outdoor fan being arranged toward the condenser;

[0009] an evaporator, the evaporator having a second inlet and a second outlet, the second inlet being in communication with the first outlet of the condenser, so as to form a circuit for circulating refrigerant among the compressor, the condenser, and the evaporator;

[0010] A heat exchanger having a third inlet and a third outlet, the third inlet being connected to the second outlet of the evaporator, and the third outlet being connected to the return air port of the compressor, so that the heat exchanger is located on the circuit in which the refrigerant circulates. The heat exchanger is arranged opposite to the condenser, and the heat exchanger is configured to perform heat exchange with the airflow inhaled by the outdoor fan to form a cold airflow to cool the condenser.

[0011] The present application also provides an air conditioner, comprising:

[0012] A compressor having an exhaust port and an air return port;

[0013] a condenser having a first inlet and a first outlet, wherein the first inlet is in communication with the exhaust port;

[0014] an outdoor fan, the outdoor fan being arranged toward the condenser;

[0015] an evaporator, the evaporator having a second inlet and a second outlet, the second inlet being in communication with the first outlet of the condenser, so as to form a circuit for circulating refrigerant among the compressor, the condenser, and the evaporator;

[0016] A heat exchanger having a third inlet and a third outlet, the third inlet being connected to the second outlet of the evaporator, and the third outlet being connected to the return air port of the compressor, so that the heat exchanger is located on the circuit in which the refrigerant circulates. The heat exchanger is arranged opposite to the condenser, and the air flow inhaled by the outdoor fan passes through the heat exchanger and undergoes heat exchange to form a cold air flow, which is blown toward the condenser to cool the condenser.

[0017] The air conditioner provided in the embodiment of the present application adds a heat exchanger to the refrigerant circulation circuit, connects the third inlet of the heat exchanger to the second outlet of the evaporator, connects the third outlet of the heat exchanger to the return air port of the compressor, and arranges the heat exchanger relative to the condenser. In cooling mode, the low-temperature, low-pressure refrigerant after heat exchange in the evaporator enters the heat exchanger. Under the action of the outdoor fan, the inhaled air flow exchanges heat with the heat exchanger to form a cold air flow. This cold air flow passes through the condenser and can cool the condenser, thereby effectively reducing the condenser temperature, which in turn helps to reduce the coil temperature of the air conditioner, reduce system pressure, and improve the energy efficiency of the air conditioner.

[0018] In some embodiments of the present application, the air conditioner further comprises:

[0019] The shell has an outdoor air inlet and an outdoor air outlet that are interconnected. The compressor, the outdoor fan, the heat exchanger and the condenser are all arranged in the shell. The outdoor fan is located at the outdoor air outlet. On the airflow path from the outdoor air inlet to the outdoor air outlet, the heat exchanger, the condenser and the outdoor fan are arranged in sequence at intervals.

[0020] This arrangement allows the housing to form the housing of the air conditioner's outdoor unit, making the air conditioner a split-type air conditioner. Since the outdoor fan in the outdoor unit is typically located at the outdoor air outlet, during operation, the outdoor fan draws in external air from the outdoor air inlet, undergoes heat exchange through the condenser, and then discharges the air from the outdoor air outlet. Based on the airflow path in this manner, the heat exchanger, condenser, and outdoor fan are sequentially spaced apart. That is, the heat exchanger is located outside the condenser, so that the airflow drawn in from the outdoor air inlet by the outdoor fan first passes through the heat exchanger, which absorbs heat to form a cold airflow. The cold airflow then passes through the high-temperature condenser for another heat exchange, achieving a cooling effect.

[0021] In some embodiments of the present application, the air conditioner further comprises:

[0022] a housing having an interior space, and an outdoor air inlet and an outdoor air outlet communicating with the interior space;

[0023] The internal space includes an indoor space and an outdoor space, the outdoor space is provided with the compressor, the outdoor fan, the heat exchanger and the condenser, and the indoor space is provided with the evaporator;

[0024] The outdoor fan is located at the outdoor air inlet. On the airflow path from the outdoor air inlet to the outdoor air outlet, the outdoor fan, the heat exchanger and the condenser are sequentially arranged at intervals.

[0025] This arrangement forms an indoor space and an outdoor space inside the shell, and arranges a compressor, an outdoor fan, a heat exchanger, and a condenser in the outdoor space, and an evaporator in the indoor space, so that the air conditioner is a window air conditioner. Since the outdoor fan of a window air conditioner is usually located at the outdoor air inlet, the outdoor fan draws in external air from the outdoor air inlet during operation, blows through the condenser for heat exchange, and then blows the air out from the outdoor air outlet. Based on the airflow path in this way, the outdoor fan, the heat exchanger, and the condenser are arranged in sequence, that is, the heat exchanger is located on the inside of the condenser, so that the airflow drawn in from the outdoor air inlet by the outdoor fan first passes through the heat exchanger, and the heat exchanger absorbs heat to form a cold airflow. The cold airflow passes through the high-temperature condenser for heat exchange again to achieve the cooling effect.

[0026] The heat exchanger of the present application can be set in a split-type air conditioner or a window-type air conditioner. Due to the different blowing modes of the outdoor fans of the two types of products, the heat exchanger can be set on different sides of the condenser. In this way, without changing the original structure of the air conditioner, only a heat exchanger is added to be arranged side by side with the condenser, and cooperated with the outdoor fan to achieve effective cooling of the condenser, so that the condenser is not limited to high temperature, thereby reducing the extent to which the heat dissipation effect of the condenser is affected by the high temperature environment.

[0027] In some embodiments of the present application, the heat exchanger includes:

[0028] a housing, the housing being arranged opposite to the condenser;

[0029] A refrigerant pipe is provided in the shell, and the refrigerant pipe has the third inlet and the third outlet.

[0030] The heat exchanger's design, which includes a housing and refrigerant tubes, allows the refrigerant to enter the tubes and exchange heat with the incoming airflow, forming a cold airflow to cool the condenser. This simplifies the heat exchanger's structure, allows for effective fixation using the housing, and provides a larger heat dissipation area. Furthermore, the housing and refrigerant tube design allows for the refrigerant tube layout and diameter to be adjusted as needed, resulting in a highly flexible overall heat exchanger structure.

[0031] In some embodiments of the present application, the condenser has a windward surface;

[0032] The projection of the outdoor fan on the windward surface at least partially overlaps with the projection of the heat exchanger on the windward surface.

[0033] When setting up the heat exchanger, the projection of the outdoor fan on the windward surface and the projection of the heat exchanger on the windward surface are set to at least partially overlap. At least part of the airflow inhaled by the outdoor fan will pass directly through the heat exchanger, and the larger the overlapping part, the larger the area of ​​the airflow passing through the heat exchanger, so that the heat exchange effect of the heat exchanger is better, and the amount of cold airflow formed is larger, which is more conducive to cooling the condenser.

[0034] In some embodiments of the present application, the air conditioner further comprises:

[0035] a controller, the controller being electrically connected to the compressor and the outdoor fan, and the controller being provided with a heating module;

[0036] A heat dissipation component having an inlet end and an outlet end, wherein the inlet end is connected to the second outlet of the evaporator, and the outlet end is connected to the third inlet of the heat exchanger, so that the heat dissipation component is located on the circuit where the refrigerant circulates, and the heat dissipation component is attached to the heating module, and the heat dissipation component is configured to cool the heating module.

[0037] By abutting the heat dissipation assembly with the heat generating module of the controller, and connecting the inlet end of the heat dissipation assembly with the second outlet of the evaporator, and connecting the outlet end of the heat dissipation assembly with the third inlet of the heat exchanger, the low-temperature and low-pressure refrigerant discharged after heat exchange in the indoor evaporator can enter the heat dissipation assembly to cool the heat generating module. Compared with the cooling mode by natural air cooling and the refrigerant discharged from the condenser in the related art, the cooling mode by using the residual heat of the refrigerant after heat exchange in the evaporator to cool the heat generating module is not affected by the environment, and has better cooling effect and higher reliability.

[0038] Since the outdoor fan is always in operation, the low-temperature and low-pressure refrigerant and the convection air can cool the heat generating module of the controller, so that the cooling effect of the controller is better.

[0039] In some embodiments of the present application, the heat dissipation assembly comprises:

[0040] A heat dissipation substrate abutting the heat generating module;

[0041] A heat dissipation pipe embedded in the heat dissipation substrate, the heat dissipation pipe having the inlet end and the outlet end.

[0042] The heat dissipation assembly comprises the heat dissipation substrate and the heat dissipation pipe embedded in the heat dissipation substrate, which is more convenient for abutting the heat dissipation substrate with the heat generating module, so that the heat dissipation pipe can be integrally formed with the heat dissipation substrate according to requirements.

[0043] In some embodiments of the present application, the air conditioner further comprises:

[0044] A first throttling device arranged on the circuit between the heat dissipation assembly and the heat exchanger; and / or,

[0045] A first stop valve arranged on the circuit between the evaporator and the heat dissipation assembly.

[0046] Since the temperature of the refrigerant discharged from the heat dissipation assembly increases after cooling the heat generating module, in order not to affect the heat exchange effect of the refrigerant entering the heat exchanger and the suction air flow, the first throttling device is arranged on the circuit between the heat dissipation assembly and the heat exchanger to throttle and depressurize the refrigerant discharged from the heat dissipation assembly, so as to achieve the purpose of cooling, so that the temperature rise does not affect the cooling effect of the condenser by the cold air flow formed by the heat exchanger under the action of the outdoor fan.

[0047] In order to prevent the entire air conditioner system from overcooling, a first stop valve is set in the circuit between the evaporator and the heat dissipation component to effectively control the flow of low-temperature and low-pressure refrigerant discharged from the evaporator, thereby achieving temperature regulation of the refrigerant in the entire circuit, thereby making the operation state of the entire refrigeration system more stable.

[0048] In some embodiments of the present application, the air conditioner further comprises:

[0049] a second throttling device, the second throttling device being provided on a circuit between the condenser and the evaporator;

[0050] A second stop valve is provided on a circuit between the second throttling device and the evaporator.

[0051] By installing a second throttling device in the circuit between the condenser and evaporator, the medium-temperature, medium-pressure refrigerant formed after heat exchange in the condenser can be cooled and reduced in pressure, becoming a low-temperature, low-pressure liquid refrigerant. This liquid then enters the evaporator, where it evaporates and absorbs heat, transforming into a low-temperature, low-pressure refrigerant. This second throttling device balances the pressure difference between the condenser and evaporator, allowing the refrigerant in the evaporator to evaporate and absorb heat at the desired low pressure. Furthermore, this second throttling device can adjust the refrigerant flow rate entering the evaporator to suit the evaporator's operation.

[0052] In addition, a second stop valve is provided on the circuit between the second throttling device and the evaporator to further control the flow of refrigerant into the evaporator, thereby adjusting the operating state of the evaporator and ensuring that the entire air conditioner system operates in the best state. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. 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 creative work.

[0054] Figure 1 A schematic structural diagram of an air conditioner provided in an embodiment of the present application;

[0055] Figure 2 A schematic diagram of a top view of an air conditioner provided in an embodiment of the present application;

[0056] Figure 3 A schematic structural diagram of a heat exchanger provided in an embodiment of the present application;

[0057] Figure 4 A schematic diagram of the exploded structure of the controller and heat dissipation assembly provided in an embodiment of the present application;

[0058] Figure 5 A schematic diagram of the structure of the air conditioner refrigeration system provided in an embodiment of the present application;

[0059] Figure 6 A schematic structural diagram of another air conditioner provided in an embodiment of the present application;

[0060] Figure 7 A schematic diagram of the internal structure of another air conditioner provided in an embodiment of the present application;

[0061] Figure 8 A schematic side view of another air conditioner provided in an embodiment of the present application;

[0062] Figure 9 This is one of the structural diagrams of another air conditioner refrigeration system provided in an embodiment of the present application;

[0063] Figure 10 This is a second structural diagram of another air conditioner refrigeration system provided in an embodiment of the present application.

[0064] Description of reference numerals:

[0065] 100. Air conditioner; 10. Housing; 10a. Outdoor air inlet; 10b. Outdoor air outlet; 11. Internal space; 11a. Indoor side space; 11b. Outdoor side space; 20. Compressor; 20a. Exhaust port; 20b. Return air port; 30. Condenser; 30a. First inlet; 30b. First outlet; 30c. Windward side; 40. Outdoor fan; 50. Evaporator; 50a. Second inlet; 50b. Second outlet; 60. Heat exchanger; 60a. Third inlet; 60b. Third outlet; 61. Housing; 62. Refrigerant pipe; 70. Controller; 71. Heating module; 80. Heat dissipation assembly; 80a. Inlet end; 80b. Outlet end; 81. Heat dissipation substrate; 82. Heat dissipation pipe; 101. First throttling device; 102. First stop valve; 103. Second throttling device; 104. Second stop valve. DETAILED DESCRIPTION

[0066] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0067] In this application, terms such as "upper," "front," and "rear" indicate positions or locations based on those shown in the accompanying drawings. These terms are intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to specific positions, or to their construction or operation in a specific position.

[0068] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0069] Furthermore, the terms "disposed," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0070] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0071] The technical solution of the present application will be further described below with reference to the embodiments and drawings.

[0072] The embodiment of the present application discloses an air conditioner 100 , which may be a split-type air conditioner or a window-type air conditioner.

[0073] When the air conditioner 100 is a split-type air conditioner, the air conditioner 100 may include a housing 10, a compressor 20, a condenser 30, an outdoor fan 40, and an evaporator 50. The housing 10 may be the outer shell of an outdoor unit, and the housing 10 has an outdoor air inlet 10a and an outdoor air outlet 10b that are interconnected. The compressor 20, the condenser 30, and the outdoor fan 40 are all disposed in the housing 10, and the outdoor fan 40 is located at the outdoor air outlet 10b.

[0074] When the outdoor fan 40 in the split-type air conditioner is in operation, it draws external air into the interior of the housing 10 through the outdoor air inlet 10a, passes through the condenser 30, cools the condenser 30, and then quickly exhausts the air through the outdoor air outlet 10b. It will be understood that in this split-type air conditioner, the air passing through the condenser 30 is drawn in by the outdoor fan 40.

[0075] When the air conditioner 100 is a window air conditioner, the air conditioner 100 may include a housing 10, a compressor 20, a condenser 30, an outdoor fan 40, and an evaporator 50. The housing 10 has an interior space 11, and an outdoor air inlet 10a and an outdoor air outlet 10b communicating with the interior space 11.

[0076] The internal space 11 includes an indoor space 11a and an outdoor space 11b. The outdoor space 11b is provided with a compressor 20, an outdoor fan 40 and a condenser 30. The indoor space 11a is provided with an evaporator 50. The outdoor fan 40 is located at the outdoor air inlet 10a.

[0077] When the outdoor fan 40 in the window air conditioner is in operation, it draws outside air through the outdoor air inlet 10a into the outdoor space 11b of the housing 10 and blows it toward the condenser 30. After cooling the condenser 30, the air is quickly discharged through the outdoor air outlet 10b. It will be understood that in this window air conditioner, the air passing through the condenser 30 is blown out by the outdoor fan 40.

[0078] The following will take a split-type air conditioner and a window-type air conditioner as examples and introduce them separately with reference to diagrams.

[0079] See also Figure 1 and Figure 2 , shows a structural diagram when the air conditioner 100 is a split-type air conditioner.

[0080] The air conditioner 100 may include a compressor 20 having an exhaust port 20a and an air return port 20b. The compressor 20 may absorb low-temperature, low-pressure refrigerant and convert it into high-temperature, high-pressure refrigerant through a compression process. That is, the compressor provides power for the circulation of the refrigerant.

[0081] In some embodiments, the air conditioner 100 may include a condenser 30 having a first inlet 30a and a first outlet 30b, wherein the first inlet 30a is in communication with the exhaust port 20a. The condenser 30 may be configured to heat high-temperature, high-pressure refrigeration air by exchanging heat with external airflow and dissipating the heat into the surrounding air, thereby achieving a cooling effect.

[0082] In some embodiments, the air conditioner 100 may include an outdoor fan 40, which is disposed toward the condenser 30. When in operation, the outdoor fan 40 can draw air from the outside, pass through the condenser 30, and then discharge it to achieve a heat dissipation effect.

[0083] In some embodiments, the air conditioner 100 may include an evaporator 50 , which may be used to perform heat exchange with external air, absorb heat, and achieve a cooling effect.

[0084] In some embodiments, the evaporator 50 may have a second inlet 50a and a second outlet 50b, and the second inlet 50a is connected to the first outlet 30b of the condenser 30 to form a loop for refrigerant circulation between the compressor 20, the condenser 30, and the evaporator 50 to complete the refrigeration cycle.

[0085] In some embodiments, see Figure 2 and Figure 3 The air conditioner 100 may include a heat exchanger 60 , and the heat exchanger 60 may be used to cool the condenser 30 .

[0086] In some embodiments, the heat exchanger 60 has a third inlet 60a and a third outlet 60b. The third inlet 60a is connected to the second outlet 50b of the evaporator 50, and the third outlet 60b is connected to the return air port 20b of the compressor 20, so that the heat exchanger 60 is located on the refrigerant circulation circuit.

[0087] The high-temperature and high-pressure refrigerant discharged from the exhaust port 20a of the compressor 20 can enter the condenser 30, and the high-temperature and high-pressure refrigerant in the condenser 30 can exchange heat with the external air to form a medium-temperature and high-pressure refrigerant. The refrigerant discharged from the condenser 30 enters the evaporator from the second inlet 50a for evaporation and heat absorption to reduce the indoor temperature. The low-temperature and low-pressure refrigerant after heat exchange is discharged from the second outlet 50b of the evaporator 50, and then enters the heat exchanger 60 through the third inlet 60a and exchanges heat with the external air to form a mixed refrigerant, and flows back to the compressor from the return air port 20b and performs the next cycle.

[0088] In some embodiments, the heat exchanger 60 may be disposed opposite to the condenser 30 . The heat exchanger 60 is configured to perform heat exchange with the airflow sucked by the outdoor fan 40 to form a cold airflow to cool the condenser 30 .

[0089] In some embodiments, the air flow sucked by the outdoor fan 40 passes through the heat exchanger 60 and undergoes heat exchange to form a cold air flow, and the cold air flow is blown toward the condenser 30 to cool the condenser 30 .

[0090] That is to say, the low-temperature and low-pressure refrigerant after heat exchange in the evaporator 50 flows into the heat exchanger 60 for heat exchange, and forms a cold air flow under the action of the outdoor fan 40 to cool the condenser. The refrigerant after heat exchange returns to the compressor 20 to continue the compression cycle to achieve a cooling effect.

[0091] The air conditioner 100 provided in the embodiment of the present application adds a heat exchanger 60 to the refrigerant circulation circuit, connects the third inlet 60a of the heat exchanger 60 to the second outlet 50b of the evaporator 50, and connects the third outlet 60b of the heat exchanger 60 to the return air port 20b of the compressor 20. The heat exchanger 60 is then positioned opposite the condenser 30. In cooling mode, the low-temperature, low-pressure refrigerant after heat exchange in the evaporator 50 enters the heat exchanger 60. Under the action of the outdoor fan 40, the inhaled airflow exchanges heat with the heat exchanger 60 to form a cold airflow. This cold airflow passes through the condenser 30, cooling the condenser 30, thereby effectively reducing the temperature of the condenser 30. This in turn helps to reduce the coil temperature of the air conditioner 100, reduce system pressure, and improve the energy efficiency of the air conditioner 100.

[0092] In some embodiments, the air conditioner 100 includes a housing 10 disposed outdoors for accommodating a compressor 20 , a condenser 30 , an outdoor fan 40 , and a heat exchanger 60 .

[0093] In some embodiments, the housing 10 has an outdoor air inlet 10a and an outdoor air outlet 10b that are interconnected. The compressor 20, outdoor fan 40, heat exchanger 60 and condenser 30 are all arranged in the housing 10, and the outdoor fan 40 is located at the outdoor air outlet 10b.

[0094] In some embodiments, the heat exchanger 60, the condenser 30, and the outdoor fan 40 are sequentially arranged in a spaced relationship along the airflow path from the outdoor air inlet 10a to the outdoor air outlet 10b. That is, the heat exchanger 60 is located on the side of the condenser 30 facing the outdoors.

[0095] Such an arrangement allows the housing 10 to form the housing 10 of the air conditioner outdoor unit, making the air conditioner 100 a split-type air conditioner. Since the outdoor fan 40 in the outdoor unit is usually located at the outdoor air outlet 10b, during operation, the outdoor fan 40 draws in external air from the outdoor air inlet 10a, passes through the condenser 30 for heat exchange, and then discharges the air from the outdoor air outlet 10b. Based on the airflow path in this manner, the heat exchanger 60, the condenser 30, and the outdoor fan 40 are arranged in sequence, that is, the heat exchanger 60 is located outside the condenser 30, so that the airflow drawn in from the outdoor air inlet 10a by the outdoor fan 40 first passes through the heat exchanger 60, which absorbs heat to form a cold airflow, which then passes through the high-temperature condenser 30 for heat exchange again to achieve a cooling effect.

[0096] In some embodiments, the heat exchanger 60 and the condenser 30 are spaced apart on the airflow path from the outdoor air inlet 10a to the outdoor air outlet 10b, thereby forming an airflow cavity between the heat exchanger 60 and the condenser 30, so that the cold airflow formed by the heat exchanger 60 can pass smoothly.

[0097] In some embodiments, a support portion may be provided at the bottom of the housing 10 , and the heat exchanger 60 may be fixed to the housing 10 , so that the heat exchanger 60 is stably connected to the housing 10 .

[0098] Optionally, the heat exchanger 60 may be fixed to the housing 10 by screws or bolts to achieve a detachable connection, or may be fixedly connected to the housing by, for example, bonding the heat exchanger 60 to the housing.

[0099] In some embodiments, see Figure 3 The heat exchanger 60 may be a component capable of performing heat exchange. For example, the heat exchanger 60 may be a flash evaporator, a cooling coil, a plate heat exchanger, or the like.

[0100] Taking a flash evaporator as an example, the heat exchanger 60 adopts a flash evaporator. The low-temperature and low-pressure refrigerant discharged from the evaporator 50 flows into the flash evaporator through the third inlet 60a for heat exchange to generate a cold air flow under the action of the outdoor fan 40.

[0101] In some embodiments, the heat exchanger 60 includes a housing 61 , which is disposed opposite to the condenser 30 and spaced apart from the condenser 30 to form an airflow cavity.

[0102] In some embodiments, the heat exchanger 60 may further include a refrigerant pipe 62 . The refrigerant pipe 62 is disposed in the housing 61 . The refrigerant pipe 62 has a third inlet 60 a and a third outlet 60 b .

[0103] Optionally, the refrigerant pipe 62 is snake-shaped or spirally wound in the outer shell 61, thereby increasing the length of the refrigerant pipe 62 so that the refrigerant can fully exchange heat when flowing through the refrigerant pipe 62, thereby improving the heat exchange effect and achieving a better cooling effect on the condenser 30.

[0104] In some embodiments, the refrigerant tube 62 can be made of a material with good thermal conductivity, such as a copper tube, a tinned copper tube, or an aluminum-copper composite tube.

[0105] The heat exchanger 60 is designed to include a housing 61 and a refrigerant tube 62. This allows the refrigerant to enter the refrigerant tube 62 and exchange heat with the inhaled airflow to form a cold airflow, thereby cooling the condenser 30. This simplifies the structure of the heat exchanger 60, and the housing 61 can be connected to the casing 10, thereby effectively securing the entire heat exchanger 60. Furthermore, the design of the housing 61 and refrigerant tube 62 allows the arrangement and diameter of the refrigerant tube 62 to be appropriately configured as needed, providing the overall structure of the heat exchanger 60 with greater design flexibility.

[0106] In some embodiments, the condenser 30 has a windward surface 30c.

[0107] In some embodiments, the windward surface 30 c refers to the side of the condenser 30 that the air first passes through when the outdoor fan 40 is in operation and draws the external air into the interior of the housing 10 from the outdoor air inlet 10 a .

[0108] In some embodiments, a projection of the outdoor fan 40 on the windward surface 30 c at least partially overlaps with a projection of the heat exchanger 60 on the windward surface 30 c .

[0109] When setting up the heat exchanger 60, the projection of the outdoor fan 40 on the windward surface 30c and the projection of the heat exchanger 60 on the windward surface 30c are set to at least partially overlap. At least part of the airflow sucked in by the outdoor fan 40 will directly pass through the heat exchanger 60, and the larger the overlapping part, the larger the area of ​​the airflow passing through the heat exchanger 60, so that the heat exchange effect of the heat exchanger 60 is better, and the amount of cold airflow formed is larger, which is more conducive to cooling the condenser 30.

[0110] In some embodiments, the outdoor fan 40 and the heat exchanger 60 can roughly overlap, and the heat exchanger 60 can basically cover the outdoor fan 40, so that the heat exchanger 60 can cover the blowing range of the outdoor fan 40, thereby making the range of the formed cold air flow wider and improving the cooling effect on the condenser 30.

[0111] In some embodiments, see Figures 2 to 4 The air conditioner 100 further includes a controller 70 , which is electrically connected to the compressor 20 and the outdoor fan 40 , and a heating module 71 is provided on the controller 70 .

[0112] In some embodiments, the controller 70 can be used to control the operation of the outdoor fan 40 .

[0113] In some embodiments, a controller may be used to control the compression process of the compressor 20 .

[0114] In some embodiments, the controller 70 is roughly arranged on one side of the outdoor fan 40 and above the compressor 20. This setting position not only facilitates electrical connection with the outdoor fan and the compressor 20, but also can make full use of the space within the shell 10, making the layout of the controller 70 more reasonable.

[0115] In some embodiments, the heating module 71 may include but is not limited to a frequency conversion module, a power module, a temperature sensor, and other electronic control components that generate relatively high heat during operation.

[0116] In the related art, the heat dissipation methods for the controller in the air conditioner 100 are mostly natural wind heat dissipation and refrigerant heat dissipation. Natural wind heat dissipation is greatly affected by the ambient temperature and has poor heat dissipation effect. The refrigerant for refrigerant heat dissipation is the relatively high temperature refrigerant introduced into the condenser 30 after heat exchange to cool the controller 70. This method has limited cooling effect on the heating module and is not ideal. Especially in high temperature environments, the temperature of the refrigerant after passing through the condenser 30 is close to 50°C to 68°C, which makes the cooling effect on the controller 70 even less ideal. Since both heat dissipation methods are limited in high temperature environments, in order to ensure the normal operation of the air conditioner 100, the frequency reduction or frequency limiting method is often used to meet the requirements of the air conditioner. This results in poor air conditioning effect and low cooling capacity.

[0117] Based on this, the present application solves the problem that the controller 70 has poor heat dissipation effect and is affected by high temperature environment by setting the heat dissipation component 80 in the loop between the evaporator 50 and the heat exchanger 60.

[0118] In some embodiments, the air conditioner 100 further includes a heat dissipation assembly 80, which has an inlet end 80a and an outlet end 80b, wherein the inlet end 80a is connected to the second outlet 50b of the evaporator 50, and the outlet end 80b is connected to the third inlet 60a of the heat exchanger 60, so that the heat dissipation assembly 80 is located on the refrigerant circulation circuit.

[0119] In some embodiments, the heat dissipation assembly 80 is attached to the heat generating module 71 , and the heat dissipation assembly 80 is configured to cool the heat generating module 71 .

[0120] By fitting the heat dissipation component 80 to the heating module of the controller 70 , the heat dissipation component 80 can directly perform contact cooling on the heating module 71 , thereby achieving a better heat dissipation effect.

[0121] The inlet end 80a of the heat dissipation assembly 80 is connected to the second outlet 50b of the evaporator 50, and the outlet end 80b of the heat dissipation assembly 80 is connected to the third inlet 60a of the heat exchanger 60. This allows the low-temperature, low-pressure refrigerant discharged after heat exchange in the indoor evaporator 50 to enter the heat dissipation assembly 80 and cool the heating module. In this manner, compared to the related art methods of cooling by natural air cooling or using the refrigerant discharged from the condenser 30, by placing the heat dissipation assembly 80 in the circuit between the evaporator 50 and the heat exchanger, the method of cooling by using the residual coolness of the refrigerant after heat exchange in the evaporator 50 is not affected by the environment, and has better heat dissipation and greater reliability.

[0122] In addition, since the outdoor fan 40 is always in operation when the air conditioner 100 is working, in addition to the low-temperature and low-pressure refrigerant being able to cool the heating module 71, the convective air under the operation of the outdoor fan 40 will have a cooling effect on the heating module 71 of the controller 70, thereby making the cooling effect of the controller 70 better.

[0123] like Figure 4 As shown, in some embodiments, the heat dissipation assembly 80 includes a heat dissipation substrate 81 , and the heat dissipation substrate 81 is attached to the heat generating module 71 .

[0124] In some embodiments, the heat dissipation substrate 81 can be attached to the heating module 71 via a thermally conductive gel, and the thermally conductive gel can further play a role in heat dissipation.

[0125] In some embodiments, the heat dissipation substrate 81 is arranged to roughly cover the heating module 71, that is, the size of the heat dissipation substrate 81 is roughly adapted to the size of the heating module 71, thereby maximizing the heat dissipation area, which is beneficial to improving the cooling effect of the heating module 71.

[0126] In some embodiments, the heat dissipation assembly 80 includes a heat dissipation pipe 82 . The heat dissipation pipe 82 is embedded in the heat dissipation substrate 81 . The heat dissipation pipe 82 has an inlet end 80 a and an outlet end 80 b .

[0127] In some embodiments, the heat dissipation pipe 82 can be made of a material with good thermal conductivity, such as a copper tube, a tinned copper tube, or an aluminum-copper composite tube. In addition, the heat dissipation pipe 82 can be arranged in a U-shape, a snake shape, or a spiral shape in the heat dissipation substrate 81.

[0128] It can be understood that by arranging the heat dissipation pipe 82 in the heat dissipation substrate 81 , not only is molding easier, but the heat dissipation substrate 81 can also play a certain protective role on the heat dissipation pipe 82 .

[0129] In some embodiments, the heat pipe 82 can be integrally formed with the heat dissipation substrate 81 .

[0130] The heat dissipation assembly 80 includes a heat dissipation substrate 81 and a heat dissipation pipe 82 embedded in the heat dissipation substrate 81, and the heat dissipation substrate 81 is more convenient to be attached to the heat generating module 71.

[0131] In some embodiments, referring to Figure 5 The air conditioner 100 includes a first throttling device 101 arranged on the circuit between the heat dissipation assembly 80 and the heat exchanger 60.

[0132] Since the refrigerant discharged from the evaporator 50 has a temperature rise after cooling the heat generating module through the heat dissipation assembly 80, in order not to affect the heat exchange effect of the refrigerant entering the heat exchanger 60 and the suction air flow, the first throttling device 101 is arranged on the circuit between the heat dissipation assembly 80 and the heat exchanger 60 to throttle and depressurize the refrigerant discharged from the heat dissipation assembly 80 to achieve the purpose of cooling, so that the temperature rise does not affect the cooling effect of the condenser 30 by the cold air flow formed by the heat exchanger 60 under the action of the outdoor fan 40.

[0133] In some embodiments, the first throttling device 101 can be a capillary tube, a thermal expansion valve, an electronic expansion valve, a float valve, etc., which can be selected according to the actual application temperature rise.

[0134] In some embodiments, the air conditioner 100 includes a first stop valve 102 arranged on the circuit between the evaporator 50 and the heat dissipation assembly 80, and specifically, one end of the first stop valve 102 is communicated with the second outlet 50b of the evaporator 50, and the other end of the first stop valve 102 is communicated with the inlet end 80a of the heat dissipation assembly 80.

[0135] In some embodiments, the first stop valve 102 can be used to control the flow and pressure of the refrigerant, and adjust the working state of the air conditioner.

[0136] In order to prevent the entire system of the air conditioner 100 from being excessively cooled, the first stop valve 102 is arranged on the circuit between the evaporator 50 and the heat dissipation assembly 80, which can effectively control the flow of the low-temperature and low-pressure refrigerant discharged from the evaporator 50, thereby realizing the temperature adjustment of the refrigerant in the entire circuit, and further making the entire refrigeration system more stable.

[0137] In some embodiments, the air conditioner 100 includes a second throttling device 103 arranged on the circuit between the condenser 30 and the evaporator 50.

[0138] By providing a second throttling device 103 in the circuit between the condenser 30 and the evaporator 50, the medium-temperature, medium-pressure refrigerant formed after heat exchange in the condenser 30 can be cooled and reduced in pressure, becoming a low-temperature, low-pressure liquid refrigerant. The liquid then enters the evaporator 50, where it evaporates and absorbs heat, transforming into a low-temperature, low-pressure refrigerant. The second throttling device 103 balances the pressure difference between the condenser 30 and the evaporator 50, allowing the refrigerant in the evaporator 50 to evaporate and absorb heat at the desired low pressure. Furthermore, the second throttling device 103 can adjust the flow rate of the refrigerant entering the evaporator 50 to suit the operation of the evaporator 50.

[0139] In some embodiments, the first throttling device 101 can be a capillary tube, a thermal expansion valve, an electronic expansion valve, a float valve, etc., and can be selected according to the actual needs of the refrigeration system of the air conditioner 100, as long as it can meet the needs.

[0140] In some embodiments, the first throttling device 101 can be a capillary tube, which can be made of copper or copper alloy, etc. By using a capillary tube as the first throttling device 101, the flow rate of the refrigerant can be controlled by adjusting the length of the capillary tube or replacing the capillary tube with a different inner diameter. The structure is simple, easy to maintain, and the cost is lower.

[0141] In some embodiments, the air conditioner 100 includes a second stop valve 104 , which is disposed on a circuit between the second throttling device 103 and the evaporator 50 .

[0142] In some embodiments, the second stop valve 104 can be used to control the flow and pressure of the refrigerant and adjust the working state of the air conditioner.

[0143] A second stop valve 104 is provided on the circuit between the second throttling device and the evaporator 50, which can further control the flow of refrigerant entering the evaporator 50, thereby adjusting the operating state of the evaporator 50 and ensuring that the entire air conditioner 100 system operates in the best state.

[0144] See Figure 5 , the dotted line in the figure shows the path of refrigerant circulation.

[0145] Specifically, the high-temperature and high-pressure refrigerant discharged from the exhaust port 20a of the compressor 20 can enter the condenser 30, and the high-temperature and high-pressure refrigerant in the condenser 30 can exchange heat with the external air to form a medium-temperature and high-pressure refrigerant. The refrigerant discharged from the condenser 30 flows through the second throttling device 103 and the second stop valve 104. The refrigerant formed under the action of the second throttling device 103 and the second stop valve 104 enters the evaporator 50 through the second inlet 50a to evaporate and absorb heat to reduce the indoor temperature. The low-temperature and low-pressure refrigerant after heat exchange is discharged from the second outlet of the evaporator 50. 50b is discharged, and then enters the heat dissipation component 80 through the inlet end 80a through the first stop valve 102, and exchanges heat with the heating module 71 of the controller 70. The temperature of the refrigerant after the exchange increases, and it passes through the first throttling device 101 for cooling, and then enters the heat exchanger 60 through the third inlet 60a. The refrigerant in the heat exchanger 60 exchanges heat with the external air under the action of the outdoor fan 40, forming a cold air flow to cool the condenser 30. At the same time, the refrigerant after heat exchange is discharged from the third outlet 60b, and flows back to the compressor 20 from the return air port 20b for the next cycle.

[0146] See also Figures 6 to 10 ,in, Figures 6 to 10 The structure diagram of the air conditioner 100 is shown when it is a window type air conditioner.

[0147] In some embodiments, the air conditioner 100 includes a housing 10 , which may be disposed at a window and is configured to accommodate a compressor 20 , a condenser 30 , an outdoor fan 40 , an evaporator 50 , and a heat exchanger 60 .

[0148] In some embodiments, the housing 10 has an interior space 11 , and an outdoor air inlet 10 a and an outdoor air outlet 10 b communicating with the interior space 11 .

[0149] In some embodiments, the interior space 11 includes an indoor space 11 a and an outdoor space 11 b . The outdoor space 11 b is provided with a compressor 20 , an outdoor fan 40 , a heat exchanger 60 , and a condenser 30 . The indoor space 11 a is provided with an evaporator 50 .

[0150] It can be understood that the indoor space 11a is located indoors and the outdoor space 11b is arranged toward the outdoors, so that the window air conditioner is simple to install and more convenient to maintain.

[0151] In some embodiments, the outdoor fan 40 is located at the outdoor air inlet 10a. On the airflow path from the outdoor air inlet 10a to the outdoor air outlet 10b, the outdoor fan 40, the heat exchanger 60 and the condenser 30 are arranged in sequence, that is, the heat exchanger 60 is located on the side of the condenser 30 facing the indoor room.

[0152] The air conditioner 100 is a window-type air conditioner by forming an indoor space 11a and an outdoor space 11b within the housing 10. The compressor 20, outdoor fan 40, heat exchanger 60, and condenser 30 are located in the outdoor space 11b, and the evaporator 50 is located in the indoor space 11a. Since the outdoor fan 40 of a window-type air conditioner is typically located at the outdoor air inlet 10a, during operation, the outdoor fan 40 draws in external air from the outdoor air inlet 10a, blows through the condenser 30 for heat exchange, and then blows the air out through the outdoor air outlet 10b. Based on this airflow path, the outdoor fan 40, heat exchanger 60, and condenser 30 are arranged in sequence, that is, the heat exchanger 60 is located inside the condenser 30. This allows the airflow drawn in from the outdoor air inlet 10a by the outdoor fan 40 to first pass through the heat exchanger 60, where it absorbs heat to form a cold airflow. The cold airflow then passes through the high-temperature condenser 30 for further heat exchange, achieving a cooling effect.

[0153] The heat exchanger 60 of the present application can be set in a split-type air conditioner or in a window-type air conditioner 100. Due to the different blowing modes of the outdoor fans 40 in the two products, the heat exchanger 60 can be set on different sides of the condenser 30. In this way, without changing the original structure of the air conditioner 100, the heat exchanger 60 can be added and arranged side by side with the condenser 30, and cooperated with the outdoor fan 40 to achieve effective cooling of the condenser 30, thereby reducing the degree to which the heat dissipation effect of the condenser 30 is affected by the high temperature environment.

[0154] In the window air conditioner, the heat exchanger 60 is located on the side of the condenser 30 facing the outdoors, which is different from the location of the heat exchanger 60 in the split air conditioner. For example, the setting method and structure of components such as the heat dissipation component 80, the throttling device, and the shut-off valve are the same as those in the split air conditioner. For details, please refer to the introduction to the split air conditioner in the above embodiment, which will not be repeated here.

[0155] The above is a detailed introduction to the air conditioner disclosed in the embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the air conditioner of the present application and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An air conditioner, characterized in that: include: A compressor having an exhaust port and an air return port; a condenser having a first inlet and a first outlet, wherein the first inlet is in communication with the exhaust port; an outdoor fan, the outdoor fan being arranged toward the condenser; an evaporator, the evaporator having a second inlet and a second outlet, the second inlet being in communication with the first outlet of the condenser, so as to form a circuit for circulating refrigerant among the compressor, the condenser, and the evaporator; A heat exchanger having a third inlet and a third outlet, the third inlet being connected to the second outlet of the evaporator, and the third outlet being connected to the return air port of the compressor, so that the heat exchanger is located on the circuit in which the refrigerant circulates. The heat exchanger is arranged opposite to the condenser, and the heat exchanger is configured to perform heat exchange with the airflow inhaled by the outdoor fan to form a cold airflow to cool the condenser.

2. The air conditioner according to claim 1, characterized in that The air conditioner further comprises: The shell has an outdoor air inlet and an outdoor air outlet that are interconnected. The compressor, the outdoor fan, the heat exchanger and the condenser are all arranged in the shell. The outdoor fan is located at the outdoor air outlet. On the airflow path from the outdoor air inlet to the outdoor air outlet, the heat exchanger, the condenser and the outdoor fan are arranged in sequence at intervals.

3. The air conditioner according to claim 1, characterized in that The air conditioner further comprises: a housing having an interior space, and an outdoor air inlet and an outdoor air outlet communicating with the interior space; The internal space includes an indoor space and an outdoor space, the outdoor space is provided with the compressor, the outdoor fan, the heat exchanger and the condenser, and the indoor space is provided with the evaporator; The outdoor fan is located at the outdoor air inlet. On the airflow path from the outdoor air inlet to the outdoor air outlet, the outdoor fan, the heat exchanger and the condenser are sequentially arranged at intervals.

4. The air conditioner according to claim 1, wherein: The heat exchanger comprises: a housing, the housing being arranged opposite to the condenser; A refrigerant pipe is provided in the shell, and the refrigerant pipe has the third inlet and the third outlet.

5. The air conditioner according to claim 1, characterized in that The condenser has a windward surface; The projection of the outdoor fan on the windward surface at least partially overlaps with the projection of the heat exchanger on the windward surface.

6. The air conditioner according to claim 1, characterized in that The air conditioner further comprises: a controller, the controller being electrically connected to the compressor and the outdoor fan, and the controller being provided with a heating module; A heat dissipation component having an inlet end and an outlet end, wherein the inlet end is connected to the second outlet of the evaporator, and the outlet end is connected to the third inlet of the heat exchanger, so that the heat dissipation component is located on the circuit where the refrigerant circulates, and the heat dissipation component is attached to the heating module, and the heat dissipation component is configured to cool the heating module.

7. The air conditioner according to claim 6, characterized in that The heat dissipation component includes: a heat dissipation substrate, the heat dissipation substrate being attached to the heating module; The heat dissipation pipe is embedded in the heat dissipation substrate and has the inlet end and the outlet end.

8. The air conditioner according to claim 6, characterized in that The air conditioner further comprises: a first throttling device, the first throttling device being provided on a circuit between the heat dissipation component and the heat exchanger; and / or, A first stop valve is provided on a circuit between the evaporator and the heat dissipation component.

9. The air conditioner according to claim 1, wherein: The air conditioner further comprises: a second throttling device, the second throttling device being provided on a circuit between the condenser and the evaporator; A second stop valve is provided on a circuit between the second throttling device and the evaporator.

10. An air conditioner, characterized in that: include: A compressor having an exhaust port and an air return port; a condenser having a first inlet and a first outlet, wherein the first inlet is in communication with the exhaust port; an outdoor fan, the outdoor fan being arranged toward the condenser; an evaporator, the evaporator having a second inlet and a second outlet, the second inlet being in communication with the first outlet of the condenser, so as to form a circuit for circulating refrigerant among the compressor, the condenser, and the evaporator; A heat exchanger having a third inlet and a third outlet, the third inlet being connected to the second outlet of the evaporator, and the third outlet being connected to the return air port of the compressor, so that the heat exchanger is located on the circuit in which the refrigerant circulates. The heat exchanger is arranged opposite to the condenser, and the air flow inhaled by the outdoor fan passes through the heat exchanger and undergoes heat exchange to form a cold air flow, which is blown toward the condenser to cool the condenser.

11. The air conditioner according to claim 10, characterized in that The air conditioner further comprises: The shell has an outdoor air inlet and an outdoor air outlet that are interconnected. The compressor, the outdoor fan, the heat exchanger and the condenser are all arranged in the shell. The outdoor fan is located at the outdoor air outlet. On the airflow path from the outdoor air inlet to the outdoor air outlet, the heat exchanger, the condenser and the outdoor fan are arranged in sequence at intervals.

12. The air conditioner according to claim 10, characterized in that The air conditioner further comprises: a housing having an interior space, and an outdoor air inlet and an outdoor air outlet communicating with the interior space; The internal space includes an indoor space and an outdoor space, the outdoor space is provided with the compressor, the outdoor fan, the heat exchanger and the condenser, and the indoor space is provided with the evaporator; The outdoor fan is located at the outdoor air inlet. On the airflow path from the outdoor air inlet to the outdoor air outlet, the outdoor fan, the heat exchanger and the condenser are sequentially arranged at intervals.

13. The air conditioner according to claim 10, wherein: The heat exchanger comprises: a housing, the housing being arranged opposite to the condenser; A refrigerant pipe is provided in the shell, and the refrigerant pipe has the third inlet and the third outlet.

14. The air conditioner according to claim 10, wherein: The condenser has a windward surface; The projection of the outdoor fan on the windward surface at least partially overlaps with the projection of the heat exchanger on the windward surface.

15. The air conditioner according to claim 10, wherein: The air conditioner further comprises: a controller, the controller being electrically connected to the compressor and the outdoor fan, and the controller being provided with a heating module; A heat dissipation component having an inlet end and an outlet end, wherein the inlet end is connected to the second outlet of the evaporator, and the outlet end is connected to the third inlet of the heat exchanger, so that the heat dissipation component is located on the circuit where the refrigerant circulates, and the heat dissipation component is attached to the heating module, and the heat dissipation component is configured to cool the heating module.

16. The air conditioner according to claim 15, characterized in that The heat dissipation component includes: a heat dissipation substrate, the heat dissipation substrate being attached to the heating module; The heat dissipation pipe is embedded in the heat dissipation substrate and has the inlet end and the outlet end.

17. The air conditioner according to claim 15, characterized in that The air conditioner further comprises: a first throttling device, the first throttling device being provided on a circuit between the heat dissipation component and the heat exchanger; and / or, A first stop valve is provided on a circuit between the evaporator and the heat dissipation component.

18. The air conditioner according to claim 10, wherein: The air conditioner further comprises: a second throttling device, the second throttling device being provided on a circuit between the condenser and the evaporator; A second stop valve is provided on a circuit between the second throttling device and the evaporator.

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