Air conditioner outdoor unit

Abstract

The application relates to the technical field of household appliances, and discloses an air conditioner outdoor unit provided with a defrosting area. The air conditioner outdoor unit comprises an outdoor heat exchanger, a temperature sensor and a pressure sensor. The outdoor heat exchanger is provided with a coil pipe and a defrosting area. The temperature sensor is used for detecting the temperature of the coil pipe. The pressure sensor is used for detecting the pressure value of the defrosting area. In this way, when the temperature sensor detects that the coil pipe temperature meets the defrosting temperature, a defrosting assembly can be controlled to defrost the defrosting area. When the coil pipe temperature does not meet the defrosting temperature, the pressure value of the defrosting area can be detected by the pressure sensor. When the pressure value of the defrosting area meets the defrosting pressure value, the pressure sensor can control the defrosting assembly to defrost the defrosting area. In this way, whether the air conditioner outdoor unit is defrosted or not can be more accurately detected, and the situation that the heating effect of the air conditioner is poor due to incomplete defrosting can be avoided, thereby improving the use experience of the user.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, for example to an air conditioner outdoor unit. BACKGROUND

[0002] At present, air conditioners have been widely used in people's daily life. When the air conditioner is started in heating mode, the refrigerant becomes high-pressure gas through the compressor, and then becomes high-pressure liquid refrigerant through the indoor heat exchanger assembly. The high-pressure liquid refrigerant becomes low-temperature and low-pressure liquid refrigerant after passing through the throttling device, and then evaporates and absorbs heat through the outdoor heat exchanger assembly, and finally flows back to the compressor. When the air conditioner is started in cooling mode, the flow path of the refrigerant is changed through the four-way valve, and the refrigerant evaporates and absorbs heat in the indoor heat exchanger assembly and condenses and releases heat in the outdoor heat exchanger assembly. Therefore, the working efficiency of the outdoor heat exchanger will affect the cooling or heating efficiency of the air conditioning system.

[0003] In order to avoid the frosting of the air conditioner outdoor unit and affect the working efficiency of the outdoor heat exchanger, the existing air conditioner outdoor unit is provided with a temperature sensor for detecting whether the air conditioner outdoor unit is frosted to control the air conditioner to start or stop the defrosting mode.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] The existing air conditioner outdoor unit provided with a temperature sensor cannot accurately detect whether the air conditioner outdoor unit has completed defrosting, and there is a situation of incomplete defrosting, which leads to poor heating effect of the air conditioner and reduces the user's experience.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not a general review, nor is it intended to determine key / important components or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0008] The air conditioner outdoor unit provided by the embodiments of the present disclosure can accurately detect whether the air conditioner outdoor unit has completed defrosting, thereby avoiding the situation that the heating effect of the air conditioner is poor due to incomplete defrosting, and improving the user's experience.

[0009] The air conditioner outdoor unit provided by the embodiment of the present disclosure is provided with a defrosting area. The air conditioner outdoor unit comprises an outdoor heat exchanger, a temperature sensor and a pressure sensor. The outdoor heat exchanger is provided with a coil and a defrosting area. The temperature sensor is used for detecting the temperature of the coil. The pressure sensor is used for detecting the pressure value of the defrosting area. The coil temperature and the defrosting area pressure value are used for controlling the outdoor heat exchanger to start or stop defrosting the defrosting area.

[0010] In some embodiments, the defrosting area is provided with a plurality of area units. The air conditioner outdoor unit further comprises a defrosting assembly. The defrosting assembly is provided with a plurality of defrosting units corresponding to the area units, and is used for defrosting the corresponding area units.

[0011] In some embodiments, the detection assembly comprises a plurality of pressure sensors corresponding to the area units, and the pressure sensors are used for detecting the pressure value of the corresponding area units.

[0012] In some embodiments, the defrosting unit is an electric heating element, which is used for heating the area unit.

[0013] In some embodiments, the number of defrosting units is greater than the number of area units, so that a plurality of defrosting units are arranged in a single area unit.

[0014] In some embodiments, in the case that a plurality of defrosting units are arranged in the area unit, the defrosting assembly further comprises an electrical connector. The electrical connector is used for connecting the plurality of defrosting units in the area unit, so that the defrosting units are in an electrical circuit communication state.

[0015] In some embodiments, the electrical connector is a metal buckle. The two ends of the metal buckle can be respectively buckled to the two adjacent defrosting units, so as to electrically connect the two adjacent defrosting units.

[0016] In some embodiments, the end of the metal buckle is provided with a buckling protrusion. The defrosting unit is provided with a buckling groove. The buckling protrusion can be buckled to the buckling groove, so that the end of the metal buckle is buckled to the defrosting unit.

[0017] In some embodiments, the air conditioner outdoor unit further comprises a heat dissipation device. The heat dissipation device is arranged at a position corresponding to the outdoor heat exchanger and the defrosting area, and is used for mounting the electric heating element. The electric heating element is a superconducting heat alloy fin.

[0018] In some embodiments, the heat dissipation device is provided with a plurality of heat dissipation fins. The electric heating elements are uniformly arranged between the heat dissipation fins.

[0019] The air conditioner outdoor unit provided by the embodiment of the present disclosure can achieve the following technical effects:

[0020] The embodiment of the present disclosure provides a kind of air conditioner outdoor unit with defrosting area.The air conditioner outdoor unit includes outdoor heat exchanger, temperature sensor and pressure sensor.The outdoor heat exchanger is provided with coil pipe and defrosting area.The temperature sensor is used to detect the temperature of coil pipe.The pressure sensor is used to detect the pressure value of defrosting area.The coil pipe temperature and defrosting area pressure value are used to control the outdoor heat exchanger to start or stop defrosting of defrosting area.In this way, in the case that the temperature sensor detects that the coil pipe temperature meets the defrosting temperature, the defrosting assembly can be controlled to defrost the defrosting area.In the case that the coil pipe temperature does not meet the defrosting temperature, the pressure value of the defrosting area can be detected by the pressure sensor.In the case that the pressure value of the defrosting area meets the defrosting pressure value, the pressure sensor can control the defrosting assembly to defrost the defrosting area.Such setting can more accurately detect whether the air conditioner outdoor unit is defrosted, thereby avoiding the case that the heating effect of air conditioner is poor due to incomplete defrosting, and improving the user experience.

[0021] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitation on the embodiments, elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute proportional limitation, and wherein:

[0023] Figure 1 is a structural schematic diagram of an air conditioner outdoor unit provided by an embodiment of the present disclosure;

[0024] Figure 2 is a structural schematic diagram of an outdoor heat exchanger provided by an embodiment of the present disclosure;

[0025] Figure 3 is a partial structural schematic diagram of an outdoor heat exchanger provided by an embodiment of the present disclosure;

[0026] Figure 4 is a structural schematic diagram of another outdoor heat exchanger provided by an embodiment of the present disclosure;

[0027] Figure 5 is a structural schematic diagram of an electrical connector provided by an embodiment of the present disclosure;

[0028] Figure 6 is a structural schematic diagram of another electrical connector provided by an embodiment of the present disclosure;

[0029] Figure 7 is a structural schematic diagram of an electrical heating element provided by an embodiment of the present disclosure.

[0030] Reference signs:

[0031] 10: outdoor heat exchanger; 11: area unit; 20: heat dissipation device; 31: electric heating element; 311: clamping groove; 32: heat dissipation fin; 40: electric connector; 41: buckle body; 42: clamping protrusion; 50: pressure sensor. DETAILED DESCRIPTION

[0032] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are for reference only and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, through multiple details, a sufficient understanding of the disclosed embodiments is provided. However, one or more embodiments can still be implemented without these details. In other cases, in order to simplify the drawings, well-known structures and devices can be simplified.

[0033] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0034] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. And, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to represent other meanings, for example, the term "upper" can also be used to represent a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0035] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0036] Unless otherwise specified, the term "a plurality of" means two or more.

[0037] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the preceding and following objects. For example, A / B means A or B.

[0038] The term "and / or" is a description of the association relationship between objects, which means that there can be three relationships. For example, A and / or B means that there are three relationships of A or B, or A and B.

[0039] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0040] The principle of air conditioning heating is to absorb the heat of outdoor air and release it indoors. Because the heat absorbed by the air conditioner outdoor unit is quickly taken away by the heat exchange system, the temperature of the air conditioner outdoor unit is reduced and the moisture in the air is condensed into frost. If the air conditioner outdoor unit is frosted, it will affect the heating effect of the air conditioner. Therefore, if the air conditioner detects that the outdoor unit is frosted, it will stop heating and enter the defrosting mode to heat the air conditioner outdoor unit for defrosting. After completing defrosting, the air conditioner will exit the defrosting mode and re-enter the heating mode to ensure the user's experience.

[0041] Currently, a temperature sensor is generally arranged on the air conditioner outdoor unit to detect the temperature of the outdoor heat exchanger coil, and to determine whether the air conditioner outdoor unit is frosted according to the temperature of the coil. However, the temperature at different positions of the coil is different, which may result in a situation that the air conditioner outdoor unit has not been completely defrosted, but the temperature sensor determines that the defrosting is completed. At this time, the air conditioner will exit the defrosting mode and re-enter the heating mode, resulting in the air conditioner outdoor unit running with frost. In this way, not only the heating effect of the air conditioner is reduced, but also the power consumption is increased.

[0042] In order to solve the above problems, currently, after the temperature sensor determines that the defrosting is completed, it still continues to run in the defrosting mode for a certain period of time to avoid the air conditioner outdoor unit running with frost. However, due to the increase of defrosting time, the problems of poor heating effect and increased power consumption are still caused.

[0043] As shown in FIG. Figures 1 to 7 The present embodiment provides an air conditioner outdoor unit provided with a defrosting area. The air conditioner outdoor unit includes an outdoor heat exchanger 10, a temperature sensor and a pressure sensor 50. The outdoor heat exchanger 10 is provided with a coil and a defrosting area. The temperature sensor is used to detect the temperature of the coil. The pressure sensor 50 is used to detect the pressure value of the defrosting area. The coil temperature and the defrosting area pressure value are used to control the outdoor heat exchanger 10 to start or stop defrosting the defrosting area.

[0044] Specifically, a temperature sensor (not shown in the figure) is arranged at a position corresponding to the coil for detecting the temperature of the coil. In the case where the temperature of the coil is less than a preset temperature, the temperature sensor determines that the defrosting area is frosted and controls the outdoor heat exchanger 10 to defrost the defrosting area. In the case where the temperature of the coil is greater than or equal to the preset temperature, the pressure value of the defrosting area is detected by the pressure sensor 50. If the defrosting area is frosted, the pressure sensor 50 will be subjected to pressure. Therefore, if the pressure sensor 50 detects that the pressure value is greater than or equal to a preset pressure value, it is determined that the defrosting area is frosted, and the outdoor heat exchanger 10 is controlled to defrost the defrosting area. If the pressure sensor 50 detects that the pressure value is less than the preset pressure value, it is determined that the defrosting is completed, and the outdoor heat exchanger 10 is controlled to exit the defrosting mode. In this way, whether the air conditioner outdoor unit is defrosted can be determined by the temperature sensor and the pressure sensor 50 at the same time, thereby avoiding the case that the air conditioner heating effect is poor due to incomplete defrosting, and improving the user experience.

[0045] At the same time, if the air conditioner outdoor unit is not seriously frosted, the temperature sensor may not be triggered. At this time, the pressure sensor 50 can be used to detect whether the defrosting area is frosted to avoid the air conditioner outdoor unit running with frost.

[0046] It can be understood that the current air conditioner is generally provided with multiple defrosting modes. If the temperature of the coil is less than the preset temperature, it means that the air conditioner outdoor unit is seriously frosted. At this time, the air conditioner can be controlled to run in a defrosting mode with high efficiency. If the temperature of the coil is greater than or equal to the preset temperature, and the pressure value is greater than or equal to the preset pressure value, it means that the air conditioner outdoor unit is slightly frosted. At this time, the air conditioner can be controlled to run in a defrosting mode with low energy consumption. If the temperature of the coil is greater than or equal to the preset temperature, and the pressure value is less than the preset pressure value, it can be determined that the defrosting is completed. In this way, the air conditioner can be more intelligent.

[0047] In actual application, the defrosting area can be arranged at a position where frost is easy to occur, such as the shell of the air conditioner outdoor unit, the coil of the outdoor heat exchanger 10, or the heat dissipation fins 32.

[0048] Optionally, the preset temperature is less than or equal to -15°C and greater than or equal to -20°C. For example, the preset temperature can be -15°C, -16°C, -17°C, -18°C, -19°C, or -20°C.

[0049] Optionally, the preset pressure value is greater than or equal to 10 g / cm 2 and less than or equal to 50 g / cm 2 . For example, the preset pressure value can be 10 g / cm 2 , 20 g / cm 2 , 30 g / cm 2 , 40 g / cm 2 , or 50 g / cm 2.

[0050] As Figures 2 to 4 shown, in some embodiments, the defrosting area is provided with a plurality of area units 11. The air conditioner outdoor unit further comprises a defrosting assembly. The defrosting assembly is provided with a plurality of defrosting units corresponding to the area units 11, for defrosting the corresponding area units 11.

[0051] Specifically, the pressure sensor 50 is electrically connected with the defrosting unit, and the defrosting unit can be controlled to defrost the area unit 11. At least one defrosting unit is provided in each area unit 11. If the pressure sensor 50 detects that any area unit 11 is frosting, the corresponding defrosting unit can be controlled to defrost the area unit 11.

[0052] It can be understood that the defrosting area of the air conditioner outdoor unit may be partially frosted, at this time, if global defrosting is performed through the outdoor heat exchanger 10, not only the defrosting efficiency will be affected, but also the energy consumption during defrosting will be increased. By separating the defrosting area into a plurality of area units 11 and providing a defrosting unit in each area unit 11, only the area unit 11 that is frosting can be defrosted, so as to achieve more precise control.

[0053] Optionally, the defrosting assembly and the outdoor heat exchanger 10 can independently defrost the defrosting area. In this way, in the case that the coil temperature cannot trigger the temperature sensor, the pressure sensor 50 can be used to detect whether the defrosting area is frosting. If the pressure sensor 50 detects that the defrosting area is frosting, the defrosting assembly can be controlled to defrost the defrosting area. In this way, the defrosting of the defrosting area can be completed while the air conditioner remains in the heating mode, further improving the user experience.

[0054] As Figure 2 and Figure 3 shown, in some embodiments, the detection assembly comprises a plurality of pressure sensors 50 corresponding to the area units 11, and the pressure sensors 50 are used to detect the pressure value of the corresponding area unit 11.

[0055] Specifically, the pressure sensor 50 is electrically connected with the defrosting unit in the area unit 11. The pressure sensor 50 and the defrosting unit in each area unit 11 are independently provided. In this way, if any pressure sensor 50 detects that the area unit 11 is frosting, the defrosting unit in the area unit 11 can be controlled to defrost. In this way, the accuracy of defrosting can be further improved.

[0056] In some practical applications, each area unit 11 is provided with a pressure sensor 50, and the pressure sensor 50 is electrically connected with the corresponding defrosting unit. In this way, the accuracy of defrosting can be improved.

[0057] As shown in Figure 2 In some actual applications, if the temperatures of the plurality of area units 11 are different, the user can only set the pressure sensor 50 in the area unit 11 with a lower temperature, and the pressure sensor 50 is electrically connected with the corresponding defrosting unit. It can be understood that if the temperatures of the plurality of area units 11 are different, the area unit 11 with a lower temperature generally has more serious frosting. Therefore, if the area unit 11 with a lower temperature is defrosted, it can be determined that the other area units 11 are also defrosted. In this way, the number of pressure sensors 50 can be reduced to reduce the cost.

[0058] In some embodiments, the defrosting unit is an electric heating element 31 for heating the area unit 11.

[0059] Specifically, the air conditioner outdoor unit is also provided with a corresponding circuit for supplying power to the electric heating element 31. If the area unit 11 has frosting, the corresponding electric heating element 31 can heat the area unit 11 to defrost. In this way, the defrosting of the area unit 11 can be completed while the air conditioner is kept in the heating mode.

[0060] As shown in Figures 2 to 4 In some embodiments, the number of defrosting units is greater than the number of area units 11, so that a plurality of defrosting units are arranged in a single area unit 11.

[0061] Specifically, when the pressure sensor 50 detects that the area unit 11 has frosting, a plurality of defrosting units can be controlled to defrost the area unit 11 at the same time to improve the defrosting efficiency.

[0062] As shown in Figures 2 to 4 In some embodiments, when a plurality of defrosting units are arranged in the area unit 11, the defrosting assembly further includes an electrical connector 40. The electrical connector 40 is used to connect the plurality of defrosting units in the area unit 11, so that the defrosting units are in an electrical circuit communication state.

[0063] Specifically, when a plurality of defrosting units are arranged in the area unit 11, the plurality of defrosting units are connected in series through the electrical connector 40 at a time. In this way, the pressure sensor 50 can trigger a plurality of defrosting units in a single area unit 11 at the same time, to further ensure the defrosting efficiency.

[0064] As shown in Figure 3 In some embodiments, the electrical connector 40 is a metal buckle. The two ends of the metal buckle can be respectively clamped on two adjacent defrosting units to electrically connect the two adjacent defrosting units.

[0065] Specifically, the two ends of the metal buckle are respectively clamped to the two defrosting units. In this way, not only the two defrosting units can be electrically connected, but also the defrosting units can be fixed by the metal buckle to avoid displacement of the defrosting units, thereby reducing the defrosting effect.

[0066] In actual application, the outdoor unit of the air conditioner is further provided with a corresponding circuit. The first defrosting unit in the area unit 11 is electrically connected with the circuit, the adjacent defrosting units are electrically connected through the metal buckle, and the last defrosting unit is electrically connected with the circuit to form a series loop.

[0067] Optionally, the side of the metal buckle is provided with an insulating structure to avoid the occurrence of electric leakage. For example, the side surface of the metal buckle is coated with a rubber layer or other insulating material.

[0068] As shown in Figures 5 to 7 , in some embodiments, the end of the metal buckle is provided with a clamping protrusion 42. The defrosting unit is provided with a clamping groove 311. The clamping protrusion 42 can be clamped in the clamping groove 311, so that the end of the metal buckle is clamped to the defrosting unit.

[0069] Specifically, the metal buckle includes a buckle body 41. The buckle body 41 extends in the direction of the defrosting unit to form a clamping protrusion 42 corresponding to the end of the defrosting unit. The defrosting unit is provided with a clamping groove 311 corresponding to the clamping protrusion 42, as shown in Figures 5 to 7 . The metal buckle can be clamped to the defrosting unit through the clamping protrusion 42 and the clamping groove 311 to avoid the metal buckle and the defrosting element from being separated from each other, thereby improving the stability of the connection between the metal buckle and the defrosting unit.

[0070] As shown in Figure 4 , in some embodiments, the outdoor unit of the air conditioner further includes a heat dissipation device 20. The heat dissipation device 20 is arranged at a position corresponding to the defrosting area of the outdoor heat exchanger 10, and is used to mount an electric heating element 31. The electric heating element 31 is a superconducting alloy fin.

[0071] Specifically, the heat dissipation device 20 is used to dissipate heat from the outdoor heat exchanger 10 to improve the heat exchange efficiency of the outdoor heat exchanger 10. The superconducting alloy fin is arranged in the heat dissipation device 20. In the case of frosting of the outdoor unit of the air conditioner, the superconducting alloy fin can be used to heat and defrost the defrosting area. In the case of normal operation of the outdoor unit of the air conditioner, the superconducting alloy fin can be used to dissipate heat from the outdoor heat exchanger 10. In this way, not only can the defrosting area be electrically heated and defrosted, but also the heat exchange efficiency of the outdoor heat exchanger 10 can be improved.

[0072] As shown in Figure 2 and Figure 4As shown, in some embodiments, the heat dissipation device 20 is provided with a plurality of heat dissipation fins 32. Among them, the electric heating elements 31 are uniformly arranged between the heat dissipation fins 32.

[0073] Specifically, uniformly arranging the superconducting alloy fins between the heat dissipation fins 32 can improve the heat exchange efficiency of the outdoor heat exchanger 10.

[0074] It can be understood that the general heat dissipation fin 32 is made of aluminum foil, and its thermal conductivity is about 15%. The thermal conductivity of the superconducting alloy provided in the present application can reach 95%, which is higher in thermal efficiency and more energy-saving than the conventional heat dissipation fin 32.

[0075] In actual application, the number of defrosting units in different area units 11 can be the same or different, and the user can set it according to the actual frosting condition.

[0076] Optionally, the heat dissipation fin 32 is provided with a avoiding structure. In the case that the superconducting alloy fin is arranged between the heat dissipation fin 32, and the end of the metal buckle is clamped on the superconducting alloy fin, the metal buckle corresponds to the avoiding structure of the heat dissipation fin 32, so as to avoid interference between the heat dissipation fin 32 and the metal buckle.

[0077] Specifically, the heat dissipation fin 32 and the metal buckle correspond to the position provided with an avoiding groove, and the metal buckle can be embedded in the avoiding groove to avoid interference between the metal buckle and the heat dissipation fin 32.

[0078] Optionally, the side of the superconducting alloy fin is provided with an insulating structure to avoid the situation of electric leakage. For example, the side surface of the superconducting alloy fin is coated with a rubber layer or other insulating material.

[0079] In the above embodiments, the connection between the metal buckle and the superconducting alloy fin is in a bare state, so as to ensure that the metal buckle and the superconducting alloy fin are in an electrically connected state.

[0080] In some practical applications, the outdoor unit of an air conditioner comprises an outdoor heat exchanger 10, a temperature sensor, a pressure sensor 50, a heat dissipation device 20 and superconducting alloy fins arranged on the heat dissipation device 20. The outdoor heat exchanger 10 is provided with a defrosting area, and the heat dissipation device 20 is arranged at a position corresponding to the defrosting area of the outdoor heat exchanger 10. The defrosting area is provided with a plurality of area units 11, each of which is provided with a pressure sensor 50, and the pressure sensor 50 is electrically connected to the superconducting alloy at the corresponding position. The temperature sensor is arranged on the outdoor heat exchanger 10 to detect the temperature of the coil of the outdoor heat exchanger 10. In the case that the coil temperature is less than the preset temperature, the temperature sensor determines that the frost is more serious and controls the outdoor heat exchanger 10 to heat and defrost the defrosting area. In the case that the coil temperature is greater than or equal to the preset temperature, the pressure value of the area unit 11 can be detected by the pressure sensor 50. In the case that the pressure value of the area unit 11 is greater than or equal to the preset pressure value, the pressure sensor 50 determines that the area unit 11 is frosted and controls the corresponding superconducting alloy to heat and defrost the area unit 11.

[0081] In the above embodiment, the pressure sensor 50 can be used to periodically detect the pressure value of the area unit 11 to determine whether the area unit 11 is frosted. In the case that the outdoor heat exchanger 10 completes heating and defrosting of the defrosting area, and the coil temperature returns to be greater than or equal to the preset temperature, the pressure sensor 50 can be controlled to detect the pressure value of the area unit 11 to avoid the case that the outdoor heat exchanger 10 is operated with frost due to incomplete defrosting.

[0082] The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable one skilled in the art to practice them. Other embodiments can include structural and other changes. The embodiments are merely representative of the possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be varied. Parts and features of some embodiments can be included or substituted for parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An air conditioner outdoor unit provided with a defrosting area, characterized by comprising: The air conditioner outdoor unit comprises: an outdoor heat exchanger provided with a coil pipe; a temperature sensor for detecting the temperature of the coil pipe; a pressure sensor for detecting the pressure value of a defrosting area, the defrosting area being provided with a plurality of area units, the number of the pressure sensors corresponding to the number of the area units, and the plurality of pressure sensors being respectively arranged in the plurality of area units, the pressure sensor being used for detecting the pressure value of the corresponding area unit; wherein the coil pipe temperature and the defrosting area pressure value are used to control the outdoor heat exchanger to start or stop defrosting the defrosting area; if the temperature of the coil pipe is less than a preset temperature, the air conditioner is controlled to run in a defrosting mode with high efficiency; if the temperature of the coil pipe is greater than or equal to the preset temperature, and the pressure value is greater than or equal to a preset pressure value, the air conditioner is controlled to run in a defrosting mode with low energy consumption. The air conditioner outdoor unit further comprises:

2. The air conditioner outdoor unit according to claim 1, characterized by a defrosting assembly provided with a plurality of defrosting units corresponding to the area units, and used for defrosting the corresponding area units.

3. The air conditioner outdoor unit according to claim 2, wherein the defrosting unit is an electric heating element, and is used for heating the area unit.

4. The air conditioner outdoor unit according to claim 3, wherein the number of the defrosting units is greater than the number of the area units, so that a plurality of defrosting units are arranged in a single area unit. In the case that a plurality of defrosting units are arranged in the area unit, the defrosting assembly further comprises:

5. The air conditioner outdoor unit according to claim 4, characterized in that, an electrical connector for connecting the plurality of defrosting units in the area unit, so that the defrosting units are in an electrical circuit communication state.

6. The air conditioner outdoor unit according to claim 5, wherein the electrical connector is a metal buckle; wherein the two ends of the metal buckle are respectively clamped to the two adjacent defrosting units, so as to electrically connect the two adjacent defrosting units.

7. The air conditioner outdoor unit according to claim 6, wherein the end of the metal buckle is provided with a clamping protrusion; and the defrosting unit is provided with a clamping groove; wherein the clamping protrusion is clamped in the clamping groove, so that the end of the metal buckle is clamped to the defrosting unit. The air conditioner outdoor unit further comprises:

8. The air conditioner outdoor unit according to claim 3, characterized by a heat dissipation device arranged at a position corresponding to the outdoor heat exchanger and the defrosting area, and used for mounting the electric heating element; wherein the electric heating element is a superconducting heat alloy fin.

9. The air conditioner outdoor unit according to claim 8, wherein the heat dissipation device is provided with a plurality of heat dissipation fins; wherein the electric heating elements are uniformly arranged between the heat dissipation fins. ​

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