Heat pump outdoor unit, heat pump system, and control method for heat pump outdoor unit

Abstract

The application discloses a heat pump outdoor unit, a heat pump system and a control method of the heat pump outdoor unit, and relates to the field of heating and ventilation equipment. The heat pump outdoor unit comprises an outdoor unit shell, a damper assembly and a heat exchange exhaust assembly. The outdoor unit shell is provided with an air inlet and an air outlet, the air outlet comprises a first air outlet, the outdoor unit shell comprises an air outlet surface frame, the first air outlet is formed at the top of the air outlet surface frame, the damper assembly is arranged in the outdoor unit shell and comprises at least one movable damper, the damper is used for opening and closing the first air outlet, and the heat exchange exhaust assembly is arranged in the outdoor unit shell. According to the heat pump outdoor unit provided by the embodiment of the application, foreign matters and the like outside can be reduced to enter the outdoor unit shell through the first air outlet located at the top.

Description

Technical Field

[0001] This invention relates to the field of heating, ventilation and air conditioning equipment, and in particular to a heat pump outdoor unit, a heat pump system, and a control method for the heat pump outdoor unit. Background Technology

[0002] In related technologies, because the outdoor unit of a heat pump is located in the outdoor environment, debris may enter the interior of the heat pump outdoor unit casing through the air outlet, especially the air outlet located at the top of the casing, where external debris, snow, and other substances are more likely to enter. This debris can interfere with and affect the internal components of the heat pump outdoor unit. Therefore, improvements are needed. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a heat pump outdoor unit that can reduce the entry of external debris and the like into the outdoor unit casing through the first air outlet located at the top.

[0004] The present invention also proposes a heat pump system including the above-mentioned heat pump outdoor unit.

[0005] The present invention also proposes a control method for the above-mentioned outdoor unit of the heat pump.

[0006] According to a first aspect of the present invention, a heat pump outdoor unit includes: an outdoor unit housing, the outdoor unit housing including a housing body, a front partition, and an air outlet frame, the air outlet frame being disposed on the front side of the housing body, the front partition being disposed between the housing body and the air outlet frame, the housing body and the front partition jointly defining an installation cavity, the air outlet frame and the front partition jointly defining an air outlet cavity, the front partition having an air outlet communicating with the air outlet cavity and the installation cavity, the housing body having an air inlet communicating with the installation cavity, the air outlet frame having an air outlet communicating with the air outlet cavity, the air outlet frame including a frame top located at the top, and the air outlet including a first air outlet located at the frame top; a damper assembly disposed in the outdoor unit housing and including at least one movable damper for opening and closing the first air outlet; and a heat exchange exhaust assembly disposed within the installation cavity.

[0007] According to an embodiment of the present invention, the outdoor unit of the heat pump is provided with a damper assembly at the first air outlet located at the top. The damper assembly includes at least one movable damper. The first air outlet can be opened and closed by the movement of the damper. This allows the damper to close the first air outlet when the outdoor unit is stopped, preventing debris or rain and snow from falling into the interior of the outdoor unit through the first air outlet and affecting the normal operation of the outdoor unit. When the outdoor unit is turned on, the damper opens the first air outlet, allowing normal air to be discharged from the first air outlet.

[0008] According to some embodiments of the present invention, the damper is rotatably connected to the outdoor unit housing.

[0009] According to some embodiments of the present invention, the damper includes a damper body and a damper shaft, the damper is rotatable about the damper shaft, and the damper shaft is rotatably connected to the inner wall of the first air outlet.

[0010] According to some embodiments of the present invention, the damper assembly includes a plurality of dampers, and the plurality of dampers together close the first air outlet.

[0011] According to some embodiments of the present invention, the plurality of said dampers are arranged in a front-to-back direction.

[0012] According to some embodiments of the present invention, each of the dampers is rotatable, and the rotation axis of the damper extends in the left-right direction.

[0013] According to some embodiments of the present invention, when the damper assembly closes the first air outlet, the outward-facing surface of the damper is a first surface, at least a portion of the first surface constitutes a guide surface, and the guide surface extends downwardly at an angle.

[0014] According to some embodiments of the present invention, the angle between the guide surface and the horizontal plane is α, where 0° < α ≤ 15°.

[0015] According to some embodiments of the present invention, the guide surface extends downward at an angle in the front-to-back direction.

[0016] According to some embodiments of the present invention, the guide surface extends downward in a direction from back to front.

[0017] According to some embodiments of the present invention, the damper assembly includes a plurality of dampers, and when the damper assembly closes the first air outlet, at least a portion of the guide surfaces of the dampers are coplanar.

[0018] According to some embodiments of the present invention, the outdoor unit of the heat pump includes a heating component for heating the damper.

[0019] According to some embodiments of the present invention, the heating assembly includes a heating element disposed on the damper.

[0020] According to some embodiments of the present invention, the heating element is embedded within the damper.

[0021] According to some embodiments of the present invention, the damper is a heat-conducting component.

[0022] According to some embodiments of the present invention, the heating element is an electric heating element.

[0023] According to some embodiments of the present invention, a heat-conducting layer is provided between the heating element and the damper.

[0024] According to some embodiments of the present invention, the damper is a metal part, and a heat-conducting layer is provided between the heating element and the damper, the heat-conducting layer being a heat-conducting insulating layer.

[0025] According to some embodiments of the present invention, a temperature detection component is further included, which is used to detect the ambient temperature or the temperature of the outdoor heat exchanger. The temperature detection component and the heating component are both electrically connected to the controller of the outdoor unit of the heat pump.

[0026] According to some embodiments of the present invention, the outdoor unit housing includes a partition plate disposed within the main body of the housing to divide the mounting cavity into a first mounting cavity and a second mounting cavity arranged in a left-right direction. The heat exchange and ventilation assembly includes an outdoor heat exchanger, an outdoor fan, and a compressor. The outdoor heat exchanger and the outdoor fan are disposed in the first mounting cavity, and the compressor is disposed in the second mounting cavity. The air inlet and the air outlet are both connected to the first mounting cavity.

[0027] According to some embodiments of the present invention, the air outlet frame is detachably connected to the main body of the housing.

[0028] According to some embodiments of the present invention, the air outlet frame includes a frame portion and a front panel, the frame portion includes a frame top located at the top, the frame portion is annular, the front panel covers the front side of the frame portion, the frame portion is connected between the front panel and the housing body, and the air outlet is formed in the frame portion.

[0029] According to some embodiments of the present invention, the frame includes a frame bottom located at the bottom, the air outlet includes a second air outlet disposed at the frame bottom, and at least a portion of the second air outlet constitutes a drain outlet.

[0030] According to some embodiments of the present invention, the frame portion includes a frame bottom and a frame side portion, the frame bottom is located at the bottom of the frame portion, the frame side portion is connected to the left and right sides of the frame top and the frame bottom, and the air outlet includes a third air outlet, the third air outlet being disposed on the frame side portion.

[0031] A heat pump system according to a second aspect of the present invention includes: an indoor air conditioning unit; and an outdoor heat pump unit according to a first aspect of the present invention.

[0032] According to an embodiment of the present invention, the heat pump system including the outdoor unit of the heat pump according to the first aspect of the present invention can reduce the entry of external debris and the like into the outdoor unit casing through the first air outlet.

[0033] A control method for a heat pump outdoor unit according to a third aspect embodiment of the present invention, wherein the heat pump outdoor unit is a heat pump outdoor unit according to a first aspect embodiment of the present invention, the control method for the heat pump outdoor unit includes:

[0034] Detect the ambient temperature or the temperature of the outdoor heat exchanger;

[0035] The heating assembly and the damper assembly are controlled according to the ambient temperature or the temperature of the outdoor heat exchanger.

[0036] According to the control method of the outdoor unit of the heat pump according to the embodiment of the present invention, by controlling the heating component and the damper component according to the ambient temperature or the temperature of the outdoor heat exchanger, the damper can be heated to avoid ice and snow blocking the first air outlet, which would reduce the actual air outlet area of ​​the outdoor unit of the heat pump, and the damper can be opened or closed normally.

[0037] According to some embodiments of the present invention, controlling the heating component and the damper assembly based on the ambient temperature or the temperature of the outdoor heat exchanger includes: the damper assembly receiving a door opening / closing command, the door opening / closing command including a command to open the damper or a command to close the damper; when the ambient temperature is lower than a first preset temperature, first activating the heating component for a preset time, and then executing the door opening / closing command to open or close the damper; when the ambient temperature is greater than or equal to the first preset temperature, executing the door opening / closing command to open or close the damper.

[0038] According to some embodiments of the present invention, controlling the heating component and the damper assembly based on the ambient temperature or the temperature of the outdoor heat exchanger includes: controlling the heating component based on the ambient temperature or the temperature of the outdoor heat exchanger when the damper is in an open state; and turning on the heating component when the ambient temperature is lower than a first preset temperature or the outdoor heat exchanger temperature is lower than a second preset temperature.

[0039] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0040] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0041] Figure 1 This is a perspective view of a heat pump outdoor unit according to some embodiments of the present invention, wherein the damper is in the open state;

[0042] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the outdoor unit of a medium-temperature heat pump from another angle;

[0043] Figure 3 yes Figure 1 Exploded view of the outdoor unit of a heat pump in China;

[0044] Figure 4 yes Figure 3 A three-dimensional schematic diagram of the air outlet frame;

[0045] Figure 5 yes Figure 4 A cross-sectional view of the air outlet frame, in which the damper is in the open position;

[0046] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0047] Figure 7 yes Figure 4 A cross-sectional view of the air outlet frame, in which the damper is in the closed state;

[0048] Figure 8 yes Figure 7 Enlarged view of point A in the middle;

[0049] Figure 9 yes Figure 4 A schematic diagram of the damper in the middle;

[0050] Figure 10 yes Figure 3 A three-dimensional schematic diagram of a portion of the structure of an outdoor unit of a medium-temperature heat pump.

[0051] Figure label:

[0052] 100. Heat pump outdoor unit;

[0053] 1. Outdoor unit casing; 11. Air inlet; 12. Air outlet; 121. First air outlet; 122. Second air outlet; 123. Third air outlet; 13. Drain outlet;

[0054] 2. Main body of the casing; 21. Middle partition; 22. Mounting cavity; 221. First mounting cavity; 222. Second mounting cavity; 23. Front partition; 24. Airflow outlet;

[0055] 3. Air outlet frame; 31. Frame section; 311. Top of frame; 312. Bottom of frame; 313. Side of frame; 32. Front panel; 33. Air outlet grille;

[0056] 4. Damper assembly; 41. Damper; 411. Damper body; 412. Damper pivot; 42. First surface; 421. Guide surface;

[0057] 5. Heating element;

[0058] 6. Heat exchange and exhaust components; 61. Outdoor fan. Detailed Implementation

[0059] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0060] The following is for reference. Figures 1-10 A heat pump outdoor unit 100 according to an embodiment of the present invention is described.

[0061] According to a first aspect of the present invention, a heat pump outdoor unit 100 includes: an outdoor unit housing 1, a damper assembly 4, and a heat exchange and exhaust assembly 6.

[0062] The outdoor unit housing 1 is provided with an air inlet 11 and an air outlet 12, and the heat exchange and exhaust assembly 6 is located inside the outdoor unit housing 1. When the heat pump outdoor unit 100 is working, airflow enters the outdoor unit housing 1 through the air inlet 11, then exchanges heat through the heat exchange and exhaust assembly 6, and finally exits the outdoor unit housing 1 through the air outlet 12. For example, the air inlet 11 can be located at the rear of the outdoor unit housing 1, and the air outlet 12 can be located at the front of the outdoor unit housing 1.

[0063] The air outlet 12 includes a first air outlet 121. The damper assembly 4 is disposed on the outdoor unit housing 1 and includes at least one movable damper 41. The damper assembly 4 is used to open and close the first air outlet 121. The first air outlet 121 can be opened or closed by the movement of the damper 41. For example, the damper assembly 4 may include a movable damper 41, and the first air outlet 121 can be opened or closed by the movement of the damper 41. Or, for example, the damper assembly 4 may include multiple movable dampers 41, and the first air outlet 121 can be opened or closed by the movement of the multiple dampers 41. When the damper assembly 4 closes the first air outlet 121, the multiple dampers 41 can close the first air outlet 121 together.

[0064] When it rains or snows outdoors, some snowmelt falls into the outdoor unit casing 1 through the first air outlet 121. This snowmelt may cause short circuits in the internal components of the heat pump outdoor unit 100, leading to a hazard. Furthermore, some sand, gravel, and dust may also fall into the casing of the heat pump outdoor unit 100 through the first air outlet 121, causing wear and scratches to the internal components or interfering with the operation of some components, resulting in partial malfunction of the heat pump outdoor unit 100. By providing a damper assembly 4 for opening or closing the first air outlet 121, the damper assembly 4 can close the first air outlet 121 when the heat pump outdoor unit 100 is stopped, preventing debris or rain / snow from falling into the interior of the heat pump outdoor unit 100 through the first air outlet 121. When the heat pump outdoor unit 100 is turned on, the damper assembly 4 can open the first air outlet 121, allowing normal airflow from the first air outlet 121.

[0065] According to an embodiment of the present invention, the outdoor unit 100 of the heat pump is provided with a damper assembly 4 at the first air outlet 121. The damper assembly 4 includes at least one movable damper 41. By moving the damper 41, the first air outlet 121 can be opened and closed. In this way, when the outdoor unit 100 of the heat pump is stopped, the damper 41 can close the first air outlet 121 to prevent debris or rain and snow from falling into the interior of the outdoor unit 100 of the heat pump and affecting the normal operation of the outdoor unit 100 of the heat pump. After the outdoor unit 100 of the heat pump is turned on, the damper 41 can open the first air outlet 121 to realize normal air outlet from the first air outlet 121.

[0066] According to some embodiments of the present invention, with reference to Figure 1 The damper 41 is rotatably connected to the outdoor unit housing 1. By making the damper 41 rotatable to the outdoor unit housing 1, the first air outlet 121 can be easily opened or closed by rotating the damper 41; in addition, the air outlet area and air outlet direction of the first air outlet 121 can also be adjusted by rotating the damper 41.

[0067] According to some embodiments of the present invention, with reference to Figure 9 The damper 41 includes a damper body 411 and a damper shaft 412. The damper 41 is rotatable around the damper shaft 412, and the damper shaft 412 is rotatably connected to the inner wall of the first air outlet 121. By making the damper 41 include a damper body 411 and a damper shaft 412, and making the damper shaft 412 rotatably connected to the inner wall of the first air outlet 121, it is convenient to rotatably connect the damper 41 to the outdoor unit housing 1, which makes the assembly of the damper 41 and the outdoor unit housing 1 simpler.

[0068] According to some embodiments of the present invention, with reference to Figures 4-9The damper assembly 4 includes multiple dampers 41, which together close the first air outlet 121. By including multiple dampers 41 in the damper assembly 4 and having multiple dampers 41 together close the first air outlet 121, the area of ​​a single damper 41 can be relatively reduced, the weight of a single damper 41 can be reduced, the force required to rotate a single damper 41 can be reduced, and the energy consumption required to rotate the damper 41 can be reduced; furthermore, the structural strength of the damper 41 can be increased, and the impact of the damper 41 being bent and deformed by collisions with debris in the outdoor environment can be reduced.

[0069] For example, multiple dampers 41 can be connected by a linkage. The damper 41 motor that drives the damper 41 can be connected to the linkage. By driving the linkage through the damper 41 motor, multiple dampers 41 can be driven to move synchronously to open or close the first air outlet 121.

[0070] According to some embodiments of the present invention, with reference to Figures 4-9 Multiple dampers 41 are arranged in the front-to-back direction. By arranging multiple dampers 41 in the front-to-back direction, the width of a single damper 41 can be reduced and the number of dampers 41 can be reduced, which helps to reduce the movement range of a single damper 41 and also reduces the installation difficulty of the damper assembly 4.

[0071] According to some embodiments of the present invention, with reference to Figures 4-9 Each damper 41 is rotatable, and the rotation axis of the damper 41 extends in the left and right direction. By rotating the damper 41, the first air outlet 121 can be easily opened or closed; in addition, by rotating the damper 41, the air outlet area and air outlet direction of the first air outlet 121 can also be adjusted; and the rotation range of each damper 41 can be small, making it easy to control.

[0072] According to some embodiments of the present invention, with reference to Figures 1-3 The first air outlet 121 is located at the top of the outdoor unit casing 1. By placing the first air outlet 121 at the top of the outdoor unit casing 1, at least part of the airflow can be discharged from the top of the outdoor unit casing 1, reducing the discomfort caused by the front airflow impact on the human body. The damper assembly 4 and the heating assembly are installed at the first air outlet 121 at the top, which can effectively reduce the entry of external debris into the casing through the first air outlet 121. Furthermore, by making the damper assembly 4 able to close the first air outlet 121, the damper assembly 4 can more effectively block foreign objects from entering the interior of the heat pump outdoor unit 100 through the first air outlet 121.

[0073] According to some embodiments of the present invention, with reference to Figure 7 and Figure 8When the damper assembly 4 closes the first air outlet 121, the outward-facing surface of the damper 41 is the first surface 42, and at least a portion of the first surface 42 constitutes a guide surface 421, which extends downward at an angle. By making the guide surface 421 extend downward at an angle, after snow water falls onto the guide surface 421, this portion of snow water flows downward along the guide surface 421 under its own gravity and eventually leaves the guide surface 421, avoiding excessive accumulation of snow water on the guide surface 421 and reducing the problem of the damper 41 freezing and becoming difficult to open or close due to snow water accumulation on the guide surface 421; it also reduces the deformation of the damper 41 due to excessive snow water accumulation on the guide surface 421 caused by the gravity pressure of the snow water.

[0074] According to some embodiments of the present invention, with reference to Figure 7 and Figure 8 The angle between the guide surface 421 and the horizontal plane is α, where 0° < α ≤ 15°. For example, the value of α can be 1°, 3°, 6°, 9°, 12°, 15°, etc. By making the angle α between the guide surface 421 and the horizontal plane greater than 0°, the guide surface 421 can have a downward sloping characteristic, avoiding excessive snow water accumulation on the guide surface 421 and reducing the problem of the damper 41 being frozen and difficult to open or close due to snow water accumulation on the guide surface 421; it can also reduce the excessive deformation of the damper 41 due to the gravitational pressure of snow water accumulation on the guide surface 421; by making the angle α between the guide surface 421 and the horizontal plane not exceed 15°, the airflow can flow more smoothly from the first air outlet 121 of the top of the frame 311, reducing the flow resistance of the airflow flowing out from the first air outlet 121 of the top of the frame 311.

[0075] According to some embodiments of the present invention, with reference to Figure 7 and Figure 8 The first air outlet 121 is located at the front end of the outdoor unit casing 1, and the guide surface 421 extends downward at an angle in the front-to-back direction. By making the guide surface 421 extend downward at an angle in the front-to-back direction, the guide surface 421 can guide the snow water, so that the snow water falling on the guide surface 421 flows downward under its own gravity. Since the first air outlet 121 is located at the front end of the outdoor unit casing 1, this part of the snow water can leave the top of the heat pump outdoor unit 100 from the front end of the outdoor unit casing 1, and is more easily discharged from the front side of the outdoor unit casing 1, thus more effectively reducing the accumulation of snow or water on the top of the heat pump outdoor unit 100.

[0076] According to some embodiments of the present invention, with reference to Figure 7 and Figure 8The guide surface 421 extends downwards in a back-to-forehead direction. Since there is usually a large space in front of the heat pump outdoor unit 100, snowmelt is more easily discharged from the heat pump outdoor unit 100. By making the guide surface 421 extend downwards in a back-to-forehead direction, it can guide the snowmelt, causing the snowmelt falling onto the guide surface 421 to flow downwards and forwards under its own gravity, making it easier to discharge from the heat pump outdoor unit 100.

[0077] For example, the air inlet 11 of the heat pump outdoor unit 100 is located at the rear of the heat pump outdoor unit 100. By making the guide surface 421 extend downward in the direction from back to front, the snow water falling on the guide surface 421 flows downward and forward under its own gravity, which can prevent the snow water from blocking the air inlet 11 of the heat pump outdoor unit 100 and causing insufficient air intake of the heat pump outdoor unit 100.

[0078] According to some embodiments of the present invention, the upper surface of the outdoor unit housing 1 includes a second surface located in front of the first air outlet 121. When the damper assembly 4 closes the first air outlet 121, the second surface is not higher than the first surface 42. After snow water falls into the first surface 42, it flows along the first surface 42 under its own gravity to the space between the first surface 42 and the second surface. By ensuring that the second surface is not higher than the first surface 42 when the damper assembly 4 closes the first air outlet 121, the accumulation of snow water between the second surface and the first surface 42 can be avoided, making it easier for the snow water to be discharged from the heat pump outdoor unit 100.

[0079] For example, the second surface is level with the lowest point of the first surface 42; or, for another example, the second surface is lower than the lowest point of the first surface 42.

[0080] According to some embodiments of the present invention, with reference to Figures 5-8 The damper assembly 4 includes multiple dampers 41. When the damper assembly 4 closes the first air outlet 121, at least some of the guide surfaces 421 of the dampers 41 are coplanar. By making the guide surfaces 421 of at least some of the dampers 41 coplanar, these guide surfaces 421 can guide the snow water falling onto them in the same direction. This allows multiple guide surfaces 421 to work together to guide the snow water, resulting in better guidance and easier discharge of the snow water from the heat pump outdoor unit 100. Furthermore, it prevents snow water from accumulating between different guide surfaces 421 of the dampers 41 and making it difficult to discharge, or reduces the amount of snow water falling into the outdoor unit housing 1 through the gaps between the different guide surfaces 421 of the dampers 41.

[0081] According to some embodiments of the present invention, with reference to Figure 6 and Figure 8The heat pump outdoor unit 100 includes a heating element for heating the damper 41. By including the heating element in the heat pump outdoor unit 100, the heating element can heat the damper 41, melting the ice and snow on the damper 41 and preventing ice and snow from blocking the first air outlet 121, thus reducing the actual air outlet area of ​​the heat pump outdoor unit 100. It also allows the damper 41 to open and close normally, preventing ice and snow from freezing the damper 41 and making it difficult to open or close.

[0082] According to some embodiments of the present invention, with reference to Figure 6 and Figure 8 The heating assembly includes a heating element 5, which is located on the damper 41. When the outdoor ambient temperature is low or there is rain or snow, the damper assembly 4 of the heat pump outdoor unit 100 may be frozen by ice and snow, making it difficult to move. By including the heating element 5 in the heating assembly and placing the heating element 5 on the damper 41, the heating element 5 can heat the damper 41, melting the ice and snow on the damper 41, allowing the damper 41 to move smoothly to open or close the first air outlet 121, and preventing the damper 41 from being blocked or damaged by ice and snow. Furthermore, by heating the damper 41 with the heating element 5, the temperature of the damper 41 increases, which can quickly melt the snow, frost, or ice accumulated on the damper 41 into water and discharge it, reducing the obstruction of the first air outlet 121 and affecting the air outlet efficiency, allowing the airflow to flow out of the first air outlet 121 more smoothly.

[0083] According to some embodiments of the present invention, the heating element 5 is an electric heating element 5. By making the heating element 5 an electric heating element 5, it is easier to start and stop the heating element 5, and easier to connect and install the heating element 5. By setting the heating element 5 as an electric heating element 5, it is convenient to control the starting and stopping of the heating element 5, and it is also possible to adjust the heating power of the heating element 5, making the control of the heating element 5 more convenient and flexible. The electric heating element 5 can generate heat relatively quickly to heat the top 311 of the frame, and the electric heating element 5 itself can also achieve relatively precise power adjustment, thereby accurately controlling the heat generation.

[0084] For example, the heating element 5 can be in the shape of a heating wire, heating strip, heating plate, heating mesh, etc.

[0085] According to some embodiments of the present invention, with reference to Figure 8 The heating element 5 is embedded within the damper 41. By embedding the heating element 5 within the damper 41, the connection between the heating element 5 and the damper 41 is made more secure, effectively preventing the heating element 5 from falling off the damper 41 and causing heating failure. Furthermore, embedding the heating element 5 within the damper 41 avoids or reduces the risk of burns or electric shocks from accidental contact with the heating element 5, thus improving safety.

[0086] According to some embodiments of the present invention, the damper 41 is a heat-conducting element. By making the damper 41 a heat-conducting element, the damper 41 can evenly transfer the heat generated by the heating element 5 to all parts of the damper 41, making the overall temperature of the damper 41 more uniform. This avoids excessive local heat in the damper 41, which would affect the structural strength of the damper 41, and also avoids insufficient local heat in the damper 41, which would affect the de-icing or defrosting effect. As a result, the overall de-icing or defrosting effect of the damper 41 is better, which better reduces the risk of the first air outlet 121 being partially or completely blocked, and also more effectively prevents the damper 41 from being frozen by ice and snow and unable to open and close normally.

[0087] According to some embodiments of the present invention, a heat-conducting layer is provided between the heating element 5 and the damper 41. By providing a heat-conducting layer between the heating element 5 and the damper 41, the heat-conducting layer can transfer the heat generated by the heating element 5 to the damper 41, raising the temperature of the damper 41 to melt the ice and snow accumulated on the damper 41, so that the damper 41 can move smoothly to open or close the first air outlet 121, more effectively preventing the damper 41 from being frozen by ice and snow and unable to open or close normally, and also better reducing the risk of the first air outlet 121 being partially or completely blocked.

[0088] According to some embodiments of the present invention, the damper 41 is a metal part, and a heat-conducting layer is provided between the heating element 5 and the damper 41. The heat-conducting layer is a heat-conducting insulating layer. By making the damper 41 a metal part, the rigidity of the damper 41 can be improved, and the deformation caused by pressure on the damper 41 can be reduced. By providing a heat-conducting layer between the heating element 5 and the damper 41, the heat-conducting layer can transfer the heat generated by the heating element 5 to the damper 41, raising the temperature of the damper 41 to melt the ice and snow accumulated above the damper 41, so that the damper 41 can move smoothly to open or close the first air outlet 121, and more effectively avoid the damper 41 being stuck or damaged by ice and snow. By making the heat-conducting layer a heat-conducting insulating layer, electrical connection between the heating element 5 and the damper 41 can be avoided, and the danger of short circuit caused by the damper 41 being electrified can be avoided.

[0089] According to some embodiments of the present invention, the heat pump outdoor unit 100 further includes a temperature detection component for detecting the ambient temperature or the temperature of the outdoor heat exchanger. Both the temperature detection component and the heating component are electrically connected to the controller of the heat pump outdoor unit 100. When the ambient temperature or the temperature of the outdoor heat exchanger is too low, ice, frost, or snow can easily form on the damper 41. By including a temperature detection component in the heat pump outdoor unit 100, which can detect the ambient temperature or the temperature of the outdoor heat exchanger, and with both the temperature detection component and the heating component electrically connected to the controller of the heat pump outdoor unit 100, the heat pump outdoor unit 100 can control the opening or closing of the heating component based on the temperature detected by the temperature detection component. This enables automatic heating, more effectively preventing the damper 41 from being blocked or damaged by ice and snow, and also reducing the risk of the first air outlet 121 being blocked by ice and snow.

[0090] For example, if the temperature detection component detects a low outdoor ambient temperature or a low outdoor heat exchanger temperature, it indicates a significant risk of icing or frosting on the damper 41, which could block the first air outlet 121 or cause the damper 41 to freeze. In this case, the controller of the heat pump outdoor unit 100 can activate the heating element 5 to defrost or melt snow from the damper 41. After defrosting or melting snow is complete, the controller of the heat pump outdoor unit 100 can deactivate the heating element 5. Furthermore, when the heating element 5 is activated to defrost or melt snow from the damper 41, its heating power can be adjusted according to the outdoor ambient temperature or the outdoor heat exchanger temperature. For instance, the lower the outdoor ambient temperature or the outdoor heat exchanger temperature, the higher the heating power can be.

[0091] According to some embodiments of the present invention, with reference to Figures 1-10 The outdoor unit housing 1 includes a housing body 2, a front partition 23, and an air outlet frame 3. The air outlet frame 3 is located on the front side of the housing body 2. The front partition 23 is located between the housing body 2 and the air outlet frame 3. The housing body 2 and the front partition 23 together define an installation cavity 22. The heat exchange exhaust assembly 6 is located in the installation cavity 22. The air outlet frame 3 and the front partition 23 together define an air outlet cavity. The front partition 23 has an air outlet 24, which connects the air outlet cavity and the installation cavity 22. The housing body 2 has an air inlet 11 that communicates with the installation cavity 22, and the air outlet frame 3 has an air outlet 12 that communicates with the air outlet cavity. When the heat pump outdoor unit 100 is working, external air enters the installation cavity 22 through the air inlet 11 and flows to the heat exchange exhaust assembly 6. After being heated by the heat exchange exhaust assembly 6, the air flows to the air outlet cavity through the air outlet 24 and then flows out to the outside of the heat pump outdoor unit 100 from the air outlet 12.

[0092] The heat exchange exhaust assembly 6 is installed inside the mounting cavity 22. This assembly exchanges heat with the airflow entering the mounting cavity 22 and guides the heat-exchanged airflow to the air outlet 24, allowing it to flow out smoothly. The air outlet 24 connects the air outlet cavity and the mounting cavity 22, enabling the airflow in the mounting cavity 22 to flow smoothly into the air outlet cavity and then exit from the air outlet 12.

[0093] The air outlet frame 3 is located on the front side of the main body 2 of the casing. The main body 2 of the casing and the front partition 23 together define the mounting cavity 22, and the air outlet frame 3 and the front partition 23 together define the air outlet cavity. The heat exchange exhaust assembly 6 is located in the mounting cavity 22, and the air outlet frame 3 has an air outlet 12 that communicates with the air outlet cavity. This allows the air outlet cavity and the mounting cavity 22 to be arranged in an orderly manner, reducing the space occupied by the air outlet cavity in the mounting cavity 22, which is beneficial to the layout optimization within the mounting cavity 22. Furthermore, by defining the air outlet cavity together with the front partition 23, the air flow cross-section of the air in the air outlet cavity can be larger than the air flow cross-section at the air outlet 24. In this way, under the condition of constant air flow, the air flow cross-section of the air in the air outlet cavity is larger than the air flow cross-section at the air outlet 24, which can buffer the airflow flowing out from the air outlet 24. This can reduce or avoid the airflow directly impacting the human body at an excessively high velocity, thereby reducing human discomfort and improving the user experience.

[0094] Optionally, the air outlet 24 may be covered with an air outlet mesh cover 33, which prevents foreign objects entering the air outlet cavity from entering the mounting cavity 22.

[0095] According to some embodiments of the present invention, with reference to Figure 10 The outdoor unit housing 1 includes a partition 21, which is disposed inside the housing body 2 to divide the mounting cavity 22 into a first mounting cavity 221 and a second mounting cavity 222 arranged in the left-right direction. The heat exchange and exhaust assembly 6 includes an outdoor heat exchanger, an outdoor fan 61 and a compressor. The outdoor heat exchanger and the outdoor fan 61 are disposed in the first mounting cavity 221, and the compressor is disposed in the second mounting cavity 222. The air inlet 11 and the air outlet are both connected to the first mounting cavity 221.

[0096] The mounting cavity 22 is divided into a first mounting cavity 221 and a second mounting cavity 222 by the partition plate 21. This allows the outdoor heat exchanger and outdoor fan 61 in the first mounting cavity 221 to be spaced apart from the compressor in the second mounting cavity 222. This ensures that the outdoor heat exchanger, outdoor fan 61 and compressor are arranged in an orderly manner and avoids mutual interference between them. By placing the compressor in a different cavity from the outdoor heat exchanger and outdoor fan 61, the interference of the compressor on the outdoor heat exchanger and outdoor fan 61 can be reduced.

[0097] Both the air inlet 11 and the air outlet are connected to the first mounting cavity 221, allowing external air to enter the first mounting cavity 221 through the air inlet 11 and exchange heat with the outdoor heat exchanger. The airflow after heat exchange can flow into the air outlet cavity through the air outlet 24 under the drive of the outdoor fan 61, be buffered, and then discharged to the outside of the heat pump outdoor unit 100, reducing the discomfort caused by the impact of the airflow on the human body.

[0098] Furthermore, the partition plate 21 divides the mounting cavity 22 into a first mounting cavity 221 and a second mounting cavity 222. This partitioned design makes maintenance and repair of each component more convenient. Maintenance personnel can selectively open the corresponding cavities for inspection and repair without requiring large-scale disassembly of the entire heat pump outdoor unit 100. For example, if the outdoor fan 61 malfunctions, only the relevant part of the first mounting cavity 221 needs to be opened for repair, without affecting the compressor located in the second mounting cavity 222, greatly shortening maintenance time and improving maintenance efficiency.

[0099] Reference Figure 10 According to some embodiments of the present invention, the projection of the first mounting cavity 221 onto the reference plane is a first projection, the projection of the second mounting cavity 222 onto the reference plane is a second projection, and the projection of the air outlet cavity onto the reference plane is a third projection. At least a portion of the first projection coincides with the third projection, and at least a portion of the second projection coincides with the third projection. The reference plane is a plane perpendicular to the front-back direction. The coincidence of at least a portion of the first projection with the third projection can include the following: for example, a portion of the first projection coincides with the third projection; or, for example, the entire first projection coincides with the third projection. The coincidence of at least a portion of the second projection with the third projection can include the following: for example, a portion of the second projection coincides with the third projection; or, for example, the entire second projection coincides with the third projection.

[0100] By aligning at least a portion of the first projection with the third projection, at least a portion of the air cavity is positioned opposite the first mounting cavity 221 in the front-back direction. Furthermore, by aligning at least a portion of the second projection with the third projection, at least a portion of the air cavity is positioned opposite the second mounting cavity 222 in the front-back direction. This results in a larger air outlet cross-sectional area for the air cavity. Consequently, when the airflow in the first mounting cavity 221 flows into the larger air outlet cross-sectional area through the air outlet 24, the increased airflow area effectively reduces the flow velocity and impact force of the airflow entering the air outlet. This provides better buffering for the airflow entering the air outlet, and the airflow buffered by the air outlet 12 is discharged from the air outlet, thus reducing discomfort caused by the impact on the human body.

[0101] Reference Figures 1-10 According to some embodiments of the present invention, the depth dimension of the air outlet cavity in the front-to-back direction is smaller than the depth dimension of the mounting cavity 22 in the front-to-back direction. By making the depth dimension of the air outlet cavity in the front-to-back direction smaller than the depth dimension of the mounting cavity 22 in the front-to-back direction, the airflow flowing out from the air outlet 24 can be buffered within the air outlet cavity, while the overall size of the heat pump outdoor unit 100 in the front-to-back direction can be reduced, thereby reducing the space occupied by the heat pump outdoor unit 100 as a whole.

[0102] Reference Figure 10 According to some embodiments of the present invention, the ratio of the depth dimension of the air outlet cavity in the front-back direction to the depth dimension of the mounting cavity 22 in the front-back direction ranges from 0.1 to 0.5. For example, the ratio of the depth dimension of the air outlet cavity in the front-back direction to the depth dimension of the mounting cavity 22 in the front-back direction can be 0.1, 0.2, 0.3, 0.4, 0.5, etc. By ensuring that the ratio of the depth dimension of the air outlet cavity in the front-back direction to the depth dimension of the mounting cavity 22 in the front-back direction is not less than 0.1, the air outlet cavity can effectively buffer the airflow, thereby reducing the discomfort caused by the impact of excessively high airflow velocity on the human body. By ensuring that the ratio of the depth dimension of the air outlet cavity in the front-back direction to the depth dimension of the mounting cavity 22 in the front-back direction is not greater than 0.5, the depth dimension of the air outlet cavity in the front-back direction can be set more reasonably. This allows the heat pump outdoor unit 100 to reduce the discomfort caused by the impact of the airflow on the human body while also making the overall size of the heat pump outdoor unit 100 in the front-back direction smaller, thereby reducing the space occupied by the heat pump outdoor unit 100.

[0103] By setting the ratio of the depth dimension of the air outlet cavity in the front-to-back direction to the depth dimension of the mounting cavity 22 in the front-to-back direction to a range of 0.1 to 0.5, the buffering effect of the air outlet cavity on the airflow and the overall front-to-back dimension of the heat pump outdoor unit 100 can be well balanced.

[0104] According to some embodiments of the present invention, with reference to Figure 3 The air outlet frame 3 is detachably connected to the main body 2 of the casing. This facilitates the maintenance or replacement of either the air outlet frame 3 or the main body 2. For example, one of the air outlet frame 3 and the main body 2 may have a hook, while the other may have a slot. By engaging the hook and slot, the air outlet frame 3 and the main body 2 can be detachably connected, making the connection between the air outlet frame 3 and the casing simple and highly stable. Alternatively, the air outlet frame 3 and the main body 2 may be connected by fasteners, which also achieves a detachable connection.

[0105] According to some embodiments of the present invention, with reference to Figure 3 and Figure 10 The air outlet frame 3 includes a frame portion 31 and a front panel 32. The frame portion 31 is annular, and the front panel 32 covers the front side of the frame portion 31. The frame portion 31 is connected between the front panel 32 and the main body 2 of the housing. The air outlet 12 is formed in the frame portion 31.

[0106] The frame 31 supports the front panel 32. The front panel 32, covering the front of the frame 31, conceals the internal structure of the air outlet frame 3, improving the overall aesthetics of the heat pump outdoor unit 100. The air outlet 12 formed on the frame 31 allows airflow to pass around the perimeter of the heat pump outdoor unit 100, such as from the top, side, or bottom, preventing discomfort caused by direct airflow from the front.

[0107] For example, when the outdoor unit 100 of the heat pump in the related technology is installed on the ground floor facing the road, the airflow after heat exchange blows out from the front side of the outdoor unit 100, which may blow onto pedestrians, making them feel uncomfortable, especially in the hot summer, when the hot air after heat exchange blows onto pedestrians, which will aggravate the discomfort. By forming the air outlet 12 on the frame 31, the airflow can be discharged around the periphery of the outdoor unit 100, which can effectively reduce the discomfort of the airflow blowing directly onto pedestrians from the front side of the outdoor unit 100.

[0108] According to some embodiments of the present invention, with reference to Figure 10 The frame portion 31 includes a frame top 311, which is located at the top of the frame portion 31. The first air outlet 121 is located at the frame top 311. By setting the first air outlet 121 at the frame top 311, the airflow can be discharged more smoothly from the frame top 311 to the outside of the heat pump outdoor unit 100. For example, in the hot summer, the temperature of the airflow after heat exchange in the heat pump outdoor unit 100 is high. According to the physical property that hot air rises, the high-temperature airflow will flow upward. By setting at least a part of the air outlet 121 at the frame top 311, this part of the high-temperature airflow can be discharged more smoothly from the air outlet 12 to the outside of the heat pump outdoor unit 100, and the discomfort caused by the airflow to the human body can be reduced.

[0109] According to some embodiments of the present invention, with reference to Figure 2 The frame portion 31 includes a frame bottom 312 located at the bottom, and the air outlet 12 includes a second air outlet 122 disposed at the frame bottom 312. At least a portion of the second air outlet 122 constitutes a drain outlet 13.

[0110] Wherein, at least a portion of the second air outlet 122 constitutes the drain outlet 13, which may include the following situations: for example, a portion of the second air outlet 122 may constitute the drain outlet 13; or, for another example, the entire second air outlet 122 may constitute the drain outlet 13.

[0111] By providing a second air outlet 122 at the bottom 312 of the frame, the air outlet area can be increased, and it can also serve as a drain outlet 13. In this way, water flowing down from the top 311 of the frame into the air outlet cavity can be discharged through the second air outlet 122 or the drain outlet 13 at the bottom 312 of the frame, thus preventing water falling into the air outlet cavity from accumulating in the air outlet cavity.

[0112] According to some embodiments of the present invention, with reference to Figures 1-4 The frame 31 includes a bottom 312 and a side 313. The bottom 312 is located at the bottom of the frame 31, and the side 313 connects the top 311 and the left and right sides of the bottom 312. The air outlet 12 includes a third air outlet 123, which is located on the side 313. The first air outlet 121 at the top 311 facilitates the upward discharge of high-temperature airflow. The third air outlet 123 on the side 313 increases the air outlet area from the side of the heat pump outdoor unit 100, which can prevent airflow from accumulating on the side and further improve the overall air outlet efficiency. By forming air outlets 12 at both the top 311 and the side 313, the air outlet area can be increased, improving the overall air outlet efficiency of the heat pump outdoor unit 100. It can also prevent airflow from directly impacting the human body at an excessively high velocity from the front of the frame 31, thereby reducing human discomfort.

[0113] Reference Figures 1-4 According to some embodiments of the present invention, the first air outlet 121 includes a plurality of spaced-apart first sub-air outlets 12, and the third air outlet 123 includes a plurality of spaced-apart second sub-air outlets 12. The cross-sectional area of ​​a single first sub-air outlet 12 is smaller than that of a single second sub-air outlet 12. The smaller cross-sectional area of ​​the plurality of first sub-air outlets 12 on the top of the frame 311 effectively prevents foreign objects from directly entering the air outlet cavity. The larger cross-sectional area of ​​the second sub-air outlets 12 on the side of the frame 313 allows airflow to be discharged more smoothly from the side to the outside of the heat pump outdoor unit 100, which is beneficial to improving the air outlet efficiency of the heat pump outdoor unit 100.

[0114] Reference Figures 1-4 According to some embodiments of the present invention, the air outlet 12 is arranged around the frame 31, so that the airflow can be discharged from the frame 31 in multiple directions to the outside of the heat pump outdoor unit 100. This can increase the air outlet area, improve the air outlet efficiency, and reduce the discomfort caused by the impact of the air outlet on the human body.

[0115] According to a second aspect of the present invention, a heat pump system includes: an indoor air conditioning unit; and an outdoor heat pump unit 100 according to a first aspect of the present invention.

[0116] According to an embodiment of the present invention, the heat pump system, by including the heat pump outdoor unit 100 according to the first aspect of the present invention, can reduce the entry of external debris and the like into the outdoor unit casing 1 through the first air outlet 121 located at the top.

[0117] According to a third aspect embodiment of the present invention, the heat pump outdoor unit 100 is a heat pump outdoor unit 100 according to a first aspect embodiment of the present invention, and the control method of the heat pump outdoor unit 100 includes:

[0118] Detect the ambient temperature or the temperature of the outdoor heat exchanger;

[0119] The heating components and damper components 4 are controlled according to the ambient temperature or the temperature of the outdoor heat exchanger.

[0120] For example, the ambient temperature can be detected, and the heating component and damper component 4 can be controlled according to the ambient temperature. When the ambient temperature is low, there is a greater risk of ice or frost forming on the damper 41 or a greater possibility of snow accumulation. The heating component can be turned on to heat and melt the ice, frost or snow on the damper 41 to remove it, so as to prevent the ice and snow on the damper 41 from blocking the first air outlet 121.

[0121] For example, when it is necessary to open or close the damper 41, if the ambient temperature is low, it indicates that there is a risk of ice or frost or snow accumulation on the damper 41. In order to enable the damper 41 to open or close normally, the heating component can be turned on first to heat and melt the ice, frost or snow on the damper 41 before controlling the damper 41 to open or close.

[0122] For example, the temperature of the outdoor heat exchanger can be detected, and the heating component and damper component 4 can be controlled according to the temperature of the outdoor heat exchanger. When the temperature of the outdoor heat exchanger is low, there is a greater risk of ice or frost or snow accumulation on the damper 41. The heating component can be turned on to heat and melt the ice, frost or snow on the damper 41 to remove it, so as to prevent the ice and snow on the damper 41 from blocking the first air outlet 121.

[0123] For example, when it is necessary to open or close the damper 41, if the temperature of the outdoor heat exchanger is detected to be low, it indicates that there is a risk of ice or frost on the damper 41 or a high probability of snow accumulation. In order to enable the damper 41 to open or close normally, the heating component can be turned on first to heat and melt the ice, frost or snow on the damper 41 before controlling the damper 41 to open or close.

[0124] According to the control method of the heat pump outdoor unit 100 of the present invention, by controlling the heating component and the damper component 4 according to the ambient temperature or the temperature of the outdoor heat exchanger, the damper 41 can be heated to avoid ice and snow blocking the air outlet 12 and reducing the actual air outlet area of ​​the heat pump outdoor unit 100, and the damper 41 can be opened or closed normally.

[0125] According to some embodiments of the present invention, the heating assembly and the damper assembly 4 are controlled based on the ambient temperature or the temperature of the outdoor heat exchanger, including:

[0126] The damper assembly 4 receives a door opening / closing command, which includes a command to open the damper 41 or a command to close the damper 41.

[0127] When the ambient temperature is lower than the first preset temperature, the heating component is turned on for a preset time before the door opening / closing command is executed to open or close the damper 41.

[0128] When the ambient temperature is greater than or equal to the first preset temperature, the door opening / closing command is executed to open or close the damper 41.

[0129] When the ambient temperature is too low, such as when it is below the first preset temperature, it indicates a high risk of ice or frost formation or snow accumulation on the damper 41. The damper 41 may become stuck or damaged due to freezing. By first activating the heating component for a preset time when the ambient temperature is below the first preset temperature, and then executing the door opening / closing command, the heating component can raise the temperature of the damper component 4, melting the ice and snow on the damper 41. This allows the damper 41 to move smoothly to open or close the first air outlet 121, more effectively preventing the damper 41 from becoming stuck or damaged due to freezing. The preset time can be 2 minutes to 10 minutes.

[0130] When the ambient temperature is high, such as when the ambient temperature is greater than or equal to the first preset temperature, it indicates that there is a low risk of ice or frost on the damper 41 or a low probability of snow accumulation. The damper 41 will not be jammed or damaged due to ice or snow freezing. By making the ambient temperature greater than or equal to the first preset temperature, the door opening and closing command can be executed directly, and the first air outlet 121 can be opened quickly.

[0131] For example, when the heat pump outdoor unit 100 starts, the damper assembly 4 receives the door opening command. The temperature detection assembly detects the ambient temperature. If the ambient temperature is greater than or equal to the first preset temperature, the door opening command is executed, causing the damper assembly 4 to open the damper 41. If the ambient temperature is less than the first preset temperature, the heating assembly is turned on first. The heating assembly raises the temperature of the damper 41 and melts the ice and snow on the damper 41. After the heating assembly has been working for a preset time, the door opening command is executed again, causing the damper assembly 4 to open the damper 41.

[0132] For example, when the heat pump outdoor unit 100 is turned off, the damper assembly 4 receives a closing command. The temperature detection assembly detects the ambient temperature. If the ambient temperature is greater than or equal to the first preset temperature, the closing command is executed, causing the damper assembly 4 to close the damper 41 to prevent debris or rain and snow from falling into the interior of the heat pump outdoor unit 100 through the first air outlet 121. If the ambient temperature is lower than the first preset temperature, the heating assembly is turned on first. The heating assembly raises the temperature of the damper 41 and melts the ice and snow on the damper 41. After the heating assembly has been working for a preset time, the closing command is executed, causing the damper assembly 4 to close the damper 41.

[0133] According to some embodiments of the present invention, the heating assembly and the damper assembly 4 are controlled based on the ambient temperature or the temperature of the outdoor heat exchanger, including:

[0134] With the damper 41 in the open position, the heating component is controlled according to the ambient temperature or the temperature of the outdoor heat exchanger.

[0135] The heating element is turned on when the ambient temperature is lower than the first preset temperature or the outdoor heat exchanger temperature is lower than the second preset temperature. The first preset temperature may be higher than the second preset temperature.

[0136] When the damper 41 is open, there is a risk of ice or frost forming on the damper 41, or a high probability of snow accumulation, when the ambient temperature or the outdoor heat exchanger temperature is too low. The damper 41 may be jammed or damaged by the freezing of ice and snow. By turning on the heating component when the ambient temperature is lower than the first preset temperature or the outdoor heat exchanger temperature is lower than the second preset temperature, the heating component can be turned on when the temperature is low and there is too much ice and snow on the damper 41. This will raise the temperature of the damper 41, melt the ice and snow on the damper 41, and prevent the ice and snow on the damper 41 from blocking the first air outlet 121 and affecting the air volume of the first air outlet 121.

[0137] The following reference Figures 1-10 A heat pump outdoor unit 100 according to some specific embodiments of the present invention is described.

[0138] In this embodiment, the heat pump outdoor unit 100 includes: an outdoor unit housing 1, a damper assembly 4, a heating assembly, and a heat exchange and exhaust assembly 6. The heat exchange and exhaust assembly 6 is disposed inside the outdoor unit housing 1.

[0139] The outdoor unit housing 1 is provided with an air inlet 11 and an air outlet 12, the air outlet 12 including a first air outlet 121. The outdoor unit housing 1 includes a housing body 2, a front partition 23 and an air outlet frame 3. The air outlet frame 3 is located on the front side of the housing body 2. The front partition 23 is located between the housing body 2 and the air outlet frame 3. The housing body 2 and the front partition 23 together define an installation cavity 22. The heat exchange exhaust assembly 6 is located in the installation cavity 22. The air outlet frame 3 and the front partition 23 together define an air outlet cavity. The front partition 23 is provided with an air outlet 24. The air outlet 24 connects the air outlet cavity and the installation cavity 22. The housing body 2 is provided with an air inlet 11 that communicates with the installation cavity 22, and the air outlet frame 3 is provided with an air outlet 12 that communicates with the air outlet cavity. The outdoor unit housing 1 includes a partition 21, which is disposed inside the housing body 2 to divide the mounting cavity 22 into a first mounting cavity 221 and a second mounting cavity 222 arranged in the left-right direction. The heat exchange and exhaust assembly 6 includes an outdoor heat exchanger, an outdoor fan 61 and a compressor. The outdoor heat exchanger and the outdoor fan 61 are disposed in the first mounting cavity 221, and the compressor is disposed in the second mounting cavity 222. The air inlet 11 and the air outlet are both connected to the first mounting cavity 221.

[0140] The air outlet frame 3 is detachably connected to the main body 2 of the casing. The air outlet frame 3 includes a frame portion 31 and a front panel 32. The frame portion 31 is annular, and the front panel 32 covers the front side of the frame portion 31. The frame portion 31 is connected between the front panel 32 and the main body 2 of the casing. An air outlet 12 is formed in the frame portion 31. The frame portion 31 includes a frame top 311, which is located at the top of the frame portion 31. A first air outlet 121 is located at the frame top 311. The frame portion 31 includes a frame bottom 312, which is located at the bottom of the frame. The air outlet 12 includes a second air outlet 122, which is located at the frame bottom 312. At least a portion of the second air outlet 122 constitutes a drain outlet 13. The frame portion 31 includes a frame bottom 312 and a frame side portion 313. The frame top 311 is located at the top of the frame portion 31, the frame bottom 312 is located at the bottom of the frame portion 31, and the frame side portion 313 connects the left and right sides of the frame top 311 and the frame bottom 312. The air outlet 12 includes a third air outlet 123, which is located on the frame side portion 313.

[0141] The damper assembly 4 is located on the top of the outdoor unit housing 1 and includes at least one movable damper 41 for opening and closing the first air outlet 121. The damper 41 is rotatably connected to the outdoor unit housing 1. The damper 41 includes a damper body 411 and a damper pivot 412. The damper 41 is rotatable around the damper pivot 412, which is rotatably connected to the inner wall of the first air outlet 121. The damper assembly 4 includes multiple dampers 41, which together close the first air outlet 121. The multiple dampers 41 are arranged in a front-to-back direction, each damper 41 is rotatable, and the axis of rotation of the damper 41 extends in a left-to-right direction.

[0142] The first air outlet 121 is located at the top of the outdoor unit housing 1. When the damper assembly 4 closes the first air outlet 121, the outward-facing surface of the damper 41 is a first surface 42, at least a portion of which forms a guide surface 421. The guide surface 421 extends downward at an angle α with the horizontal plane, where 0° < α ≤ 15°. The first air outlet 121 is located at the front end of the outdoor unit housing 1, and the guide surface 421 extends downward at an angle from back to front. The damper assembly 4 includes a plurality of dampers 41, and when the damper assembly 4 closes the first air outlet 121, the guide surfaces 421 of at least a portion of the dampers 41 are coplanar.

[0143] The heating assembly is used to heat the damper 41. The heating assembly includes a heating element 5, which is disposed within and embedded in the damper 41, which is a heat-conducting element. The heating element 5 is an electric heating element, and the damper 41 is a metal component. A heat-conducting layer, which is a heat-conducting insulating layer, is provided between the heating element 5 and the damper 41. The heat pump outdoor unit 100 also includes a temperature detection assembly, which is used to detect the ambient temperature or the temperature of the outdoor heat exchanger. Both the temperature detection assembly and the heating assembly are electrically connected to the controller of the heat pump outdoor unit 100.

[0144] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0145] In the description of this invention, "first feature" and "second feature" may include one or more of the features.

[0146] In the description of this invention, "a plurality of" means two or more.

[0147] In the description of this invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0148] In the description of this invention, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0149] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0150] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A heat pump outdoor unit, characterized in that, include: An outdoor unit housing includes a housing body, a front partition, and an air outlet frame. The air outlet frame is disposed on the front side of the housing body. The front partition is disposed between the housing body and the air outlet frame. The housing body and the front partition together define an installation cavity. The air outlet frame and the front partition together define an air outlet cavity. The outdoor unit housing includes a middle partition, which is disposed within the housing body to divide the installation cavity into a first installation cavity and a second installation cavity arranged in a left-right direction. The front partition is provided with an airflow outlet, which connects the air outlet cavity and the mounting cavity. The main body of the casing is provided with an air inlet that communicates with the mounting cavity. The air inlet is located at the rear of the outdoor casing. The air outlet frame is provided with an air outlet that communicates with the air outlet cavity. The air outlet frame includes a frame top located at the top, and the air outlet includes a first air outlet located at the frame top. A damper assembly is disposed on the outdoor unit housing and includes at least one movable damper for opening and closing the first air outlet. When the damper assembly closes the first air outlet, the outward-facing surface of the damper is a first surface, at least a portion of the first surface constitutes a guide surface, and the guide surface extends downwardly. A heating assembly for heating the damper, the heating assembly including a heating element disposed on and embedded in the damper, the damper being a heat-conducting element and being a metal element, the heating element being an electric heating element, and a heat-conducting layer being provided between the heating element and the damper, the heat-conducting layer being a heat-conducting insulating layer; A temperature detection component is provided, which is used to detect the ambient temperature or the temperature of the outdoor heat exchanger. The temperature detection component and the heating component are both electrically connected to the controller of the outdoor heat pump unit. The controller is used to control the heating component and the damper component according to the ambient temperature or the temperature of the outdoor heat exchanger. A heat exchange and exhaust assembly is disposed within the mounting cavity. The heat exchange and exhaust assembly includes an outdoor heat exchanger, an outdoor fan, and a compressor. The outdoor heat exchanger and the outdoor fan are disposed in the first mounting cavity, and the compressor is disposed in the second mounting cavity. The air inlet and the air outlet are both connected to the first mounting cavity. The projection of the first mounting cavity onto a reference plane is a first projection, the projection of the second mounting cavity onto the reference plane is a second projection, and the projection of the air outlet onto the reference plane is a third projection. At least a portion of the first projection coincides with the third projection, and at least a portion of the second projection coincides with the third projection. The reference plane is a plane perpendicular to the front-back direction.

2. The outdoor unit of the heat pump according to claim 1, characterized in that, The damper is rotatably connected to the outdoor unit casing.

3. The outdoor unit of the heat pump according to claim 2, characterized in that, The damper includes a damper body and a damper shaft. The damper is rotatable around the damper shaft, and the damper shaft is rotatably connected to the inner wall of the first air outlet.

4. The outdoor unit of the heat pump according to claim 1, characterized in that, The damper assembly includes multiple dampers, which together close the first air outlet.

5. The outdoor unit of the heat pump according to claim 4, characterized in that, The multiple dampers are arranged in the front-to-back direction.

6. The outdoor unit of the heat pump according to claim 5, characterized in that, Each of the dampers is rotatable, and the axis of rotation of the dampers extends in the left-right direction.

7. The outdoor unit of the heat pump according to claim 1, characterized in that, The angle between the guide surface and the horizontal plane is α, where 0° < α ≤ 15°.

8. The outdoor unit of the heat pump according to claim 1, characterized in that, The damper assembly includes multiple dampers, and when the damper assembly closes the first air outlet, at least some of the guide surfaces of the dampers are coplanar.

9. The outdoor unit of the heat pump according to any one of claims 1-8, characterized in that, The air outlet frame is detachably connected to the main body of the casing.

10. The outdoor unit of the heat pump according to any one of claims 1-8, characterized in that, The air outlet frame includes a frame portion and a front panel. The frame portion includes a top portion located at the top. The frame portion is annular. The front panel covers the front side of the frame portion. The frame portion is connected between the front panel and the main body of the housing. The air outlet is formed in the frame portion.

11. The outdoor unit of the heat pump according to claim 10, characterized in that, The frame includes a frame bottom located at the bottom, and the air outlet includes a second air outlet disposed at the frame bottom, with at least a portion of the second air outlet constituting a drain outlet.

12. The outdoor unit of the heat pump according to claim 10, characterized in that, The frame includes a bottom and a side. The bottom is located at the bottom of the frame. The side connects the top and the left and right sides of the bottom. The air outlet includes a third air outlet, which is located on the side.

13. A heat pump system, characterized in that, include: Air conditioner indoor unit; The outdoor unit of the heat pump according to any one of claims 1-12.

14. A control method for an outdoor unit of a heat pump, characterized in that, The heat pump outdoor unit is a heat pump outdoor unit according to any one of claims 1-12, and the control method of the heat pump outdoor unit includes: Detect the ambient temperature or the temperature of the outdoor heat exchanger; The heating assembly and the damper assembly are controlled according to the ambient temperature or the temperature of the outdoor heat exchanger.

15. The control method for a heat pump outdoor unit according to claim 14, characterized in that, Controlling the heating assembly and the damper assembly based on the ambient temperature or the temperature of the outdoor heat exchanger includes: The damper assembly receives a door opening / closing command, which includes a command to open the damper or a command to close the damper; When the ambient temperature is lower than the first preset temperature, the heating component is first turned on for a preset time, and then the door opening / closing command is executed to open or close the damper. When the ambient temperature is greater than or equal to a first preset temperature, the door opening / closing command is executed to open or close the damper.

16. The control method for a heat pump outdoor unit according to claim 14, characterized in that, Controlling the heating assembly and the damper assembly based on the ambient temperature or the temperature of the outdoor heat exchanger includes: When the damper is in the open position, the heating component is controlled according to the ambient temperature or the temperature of the outdoor heat exchanger. The heating component is turned on when the ambient temperature is lower than the first preset temperature or the outdoor heat exchanger temperature is lower than the second preset temperature.

Images