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

Abstract

The invention 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, and the heat pump outdoor unit comprises an outdoor unit shell, an air door assembly and a heat exchange and 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 face frame, the first air outlet is formed in the top of the air outlet face frame, the air door assembly is arranged on the outdoor unit shell and comprises at least one movable air door, the air door is used for opening and closing the first air outlet, and the heat exchange air exhaust assembly is arranged in the outdoor unit shell. According to the heat pump outdoor unit, external sundries and the like entering the outdoor unit shell through the first air outlet in the top can be reduced.

Description

Technical Field

[0001] The present invention relates to the field of HVAC 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 Art

[0002] In related technologies, since the heat pump outdoor unit is located outdoors, debris may enter the interior of the heat pump outdoor unit casing through the air outlet of the heat pump outdoor unit. In particular, the air outlet located at the top of the casing makes it easier for external debris, such as ice and snow, to enter the casing. This debris entering the casing can interfere with and affect the internal components of the heat pump outdoor unit. Therefore, there is room for improvement. Summary of the Invention

[0003] The present invention aims to solve at least 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 into the outdoor housing through the first air outlet located at the top.

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

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

[0006] The heat pump outdoor unit according to the first embodiment of the present invention includes: an outdoor casing, the outdoor casing including a casing body, a front partition and an air outlet frame, the air outlet frame is arranged on the front side of the casing body, the front partition is arranged between the casing body and the air outlet frame, the casing body and the front partition jointly define an installation cavity, the air outlet frame and the front partition jointly define an outlet cavity, an air flow outlet is provided on the front partition, the air flow outlet connects the outlet cavity and the installation cavity, the casing body is provided with an air inlet connected to the installation cavity, the air outlet frame is provided with an air outlet connected to the outlet cavity, the air outlet frame includes a frame top located at the top, the air outlet includes a first air outlet provided on the frame top; a damper assembly is provided in the outdoor casing and includes at least one movable damper for opening and closing the first air outlet; a heat exchange exhaust assembly is provided in the installation cavity.

[0007] According to an embodiment of the present invention, the heat pump outdoor unit is provided with a damper assembly at the first air outlet located at the top, and the damper assembly includes at least one movable damper. The first air outlet can be opened and closed through the movement of the damper. In this way, the damper can close the first air outlet when the heat pump outdoor unit is stopped, so as to prevent debris or rain and snow from falling into the interior of the heat pump outdoor unit through the first air outlet and affecting the normal operation of the heat pump outdoor unit. After the heat pump outdoor unit is started, the damper can open the first air outlet to achieve normal air discharge from the first air outlet.

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

[0009] According to some embodiments of the present invention, 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.

[0010] According to some embodiments of the present invention, the damper assembly includes a plurality of dampers, and the plurality of dampers jointly close the first air outlet. According to some embodiments of the present invention, a plurality of dampers are arranged along a front-to-back direction.

[0011] According to some embodiments of the present invention, each damper is rotatable, and a rotation axis of the damper extends in a left-right direction.

[0012] 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 in an inclined direction.

[0013] According to some embodiments of the present invention, the angle between the guide surface and the horizontal plane is α, 0°<α≤15°.

[0014] According to some embodiments of the present invention, the guide surface extends obliquely downward in the front-rear direction.

[0015] According to some embodiments of the present invention, the guide surface extends obliquely downward in a direction from rear to front.

[0016] 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, the guide surfaces of at least some of the dampers are arranged in the same plane.

[0017] According to some embodiments of the present invention, the heat pump outdoor unit includes a heating component, and the heating component is used to heat the damper.

[0018] According to some embodiments of the present invention, the heating assembly includes a heating element, and the heating element is provided on the damper.

[0019] According to some embodiments of the present invention, the heating element is embedded in the damper.

[0020] According to some embodiments of the present invention, the damper is a heat conducting member.

[0021] According to some embodiments of the present invention, the heating element is an electric heating element.

[0022] According to some embodiments of the present invention, a heat-conducting layer is provided between the heating element and the damper.

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

[0024] 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 heat pump outdoor unit.

[0025] According to some embodiments of the present invention, the outdoor casing includes a middle partition, which is arranged in the casing main body to separate the installation cavity into a first installation cavity and a second installation cavity arranged along the left and right directions. 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 arranged in the first installation cavity, the compressor is arranged in the second installation cavity, and the air inlet and the air outlet cavity are both connected to the first installation cavity.

[0026] According to some embodiments of the present invention, the air outlet frame is detachably connected to the casing body.

[0027] According to some embodiments of the present invention, the air outlet frame includes a frame portion and a front panel, the frame portion includes the frame top located at the top, the frame portion is annular, the front panel cover is arranged on the front side of the frame portion, the frame portion is connected between the front panel and the casing body, and the air outlet is formed in the frame portion.

[0028] According to some embodiments of the present invention, the frame portion includes a frame bottom located at the bottom, the air outlet includes a second air outlet, the second air outlet is arranged at the frame bottom, and at least a portion of the second air outlet constitutes a drain outlet.

[0029] 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 frame top and the left and right sides of the frame bottom, and the air outlet includes a third air outlet, and the third air outlet is arranged on the frame side portion.

[0030] A heat pump system according to an embodiment of a second aspect of the present invention includes: an air conditioner indoor unit; and a heat pump outdoor unit according to the embodiment of the first aspect of the present invention.

[0031] According to the heat pump system of the embodiment of the present invention, by including the heat pump outdoor unit according to the embodiment of the first aspect of the present invention, it is possible to reduce external debris and the like from entering the outdoor casing through the first air outlet.

[0032] According to a control method for a heat pump outdoor unit according to an embodiment of a third aspect of the present invention, the heat pump outdoor unit is the heat pump outdoor unit according to an embodiment of the first aspect of the present invention, and the control method for 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.

[0033] According to the control method of the heat pump outdoor unit in an 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 prevent ice and snow from blocking the first air outlet, thereby reducing the actual air outlet area of the heat pump outdoor unit, and enabling the damper to be opened or closed normally.

[0034] According to some embodiments of the present invention, the heating component and the damper component are controlled according to the ambient temperature or the temperature of the outdoor heat exchanger, including: the damper component receives a door opening and closing instruction, and the door opening and closing instruction includes an instruction to open the damper or an instruction to close the damper; when the ambient temperature is lower than a first preset temperature, the heating component is first turned on for a preset time, and then the door opening and closing instruction is executed to open or close the damper; when the ambient temperature is greater than or equal to the first preset temperature, the door opening and closing instruction is executed to open or close the damper.

[0035] According to some embodiments of the present invention, the heating component and the damper component are controlled according to the ambient temperature or the temperature of the outdoor heat exchanger, including: controlling the heating component according to 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.

[0036] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which: Figure 1 is a perspective schematic diagram of a heat pump outdoor unit according to some embodiments of the present invention, wherein the damper is in an open state; Figure 2 yes Figure 1 A three-dimensional schematic diagram of the heat pump outdoor unit from another angle; Figure 3 yes Figure 1 Exploded diagram of the heat pump outdoor unit; Figure 4 yes Figure 3 A three-dimensional schematic diagram of the air outlet frame; Figure 5 yes Figure 4 A cross-sectional view of the air outlet frame in FIG. 1 , wherein the air door is in an open state; Figure 6 yes Figure 5 Enlarged view of point B in the middle; Figure 7 yes Figure 4 A cross-sectional view of the air outlet frame in FIG. 1 , wherein the air door is in a closed state; Figure 8 yes Figure 7 Enlarged view of point A in the middle; Figure 9 yes Figure 4 Schematic diagram of the damper in; Figure 10 yes Figure 3 A three-dimensional schematic diagram of a portion of the structure of a heat pump outdoor unit.

[0038] Reference numerals: 100. Heat pump outdoor unit; 1. Outdoor housing; 11. Air inlet; 12. Air outlet; 121. First air outlet; 122. Second air outlet; 123. Third air outlet; 13. Drain outlet; 2. Casing body; 21. Middle partition; 22. Installation cavity; 221. First installation cavity; 222. Second installation cavity; 23. Front partition; 24. Airflow outlet; 3. Air outlet frame; 31. Frame portion; 311. Frame top; 312. Frame bottom; 313. Frame side; 32. Front panel; 33. Air outlet grille; 4. Damper assembly; 41. Damper; 411. Damper body; 412. Damper shaft; 42. First surface; 421. Guide surface; 5. Heating element; 6. Heat exchange and exhaust components; 61. Outdoor fan. DETAILED DESCRIPTION

[0039] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0040] Reference below Figures 1-10 A heat pump outdoor unit 100 according to an embodiment of the present invention will be described.

[0041] The heat pump outdoor unit 100 according to the first embodiment of the present invention includes: an outdoor casing 1 , a damper assembly 4 and a heat exchange and exhaust assembly 6 .

[0042] The outdoor housing 1 is provided with an air inlet 11 and an air outlet 12, and the heat exchange and exhaust assembly 6 is disposed within the outdoor housing 1. When the heat pump outdoor unit 100 is operating, air flows into the outdoor housing 1 through the air inlet 11, undergoes heat exchange through the heat exchange and exhaust assembly 6, and is finally discharged from the outdoor housing 1 through the air outlet 12. For example, the air inlet 11 may be located at the rear of the outdoor housing 1, and the air outlet 12 may be located at the front of the outdoor housing 1.

[0043] The air outlet 12 includes a first air outlet 121. The damper assembly 4 is provided in the outdoor 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 single movable damper 41. The movement of the single damper 41 can open or close the first air outlet 121. For another example, the damper assembly 4 may include multiple movable dampers 41. The movement of the multiple dampers 41 can open or close the first air outlet 121. When the damper assembly 4 closes the first air outlet 121, the multiple dampers 41 can collectively close the first air outlet 121.

[0044] When it rains or snows outdoors, some snow and water may fall into the outdoor housing 1 through the first air outlet 121. This snow and water may cause a short circuit in the components inside the heat pump outdoor unit 100, causing danger. In addition, some sand and gravel may also fall into the housing of the heat pump outdoor unit 100 through the first air outlet 121, causing wear and scratches on the components inside the heat pump outdoor unit 100, or interfering with the operation of some components, causing 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 shut down, preventing debris or snow and rain from falling into the interior of the heat pump outdoor unit 100 through the first air outlet 121. After the heat pump outdoor unit 100 is turned on, the damper assembly 4 can open the first air outlet 121 to ensure normal air flow from the first air outlet 121.

[0045] According to the heat pump outdoor unit 100 of an embodiment of the present invention, a damper assembly 4 is provided at the first air outlet 121. The damper assembly 4 includes at least one movable damper 41. The first air outlet 121 can be opened and closed by the movement of the damper 41. In this way, the damper 41 can close the first air outlet 121 when the heat pump outdoor unit 100 is shut down, so as 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 and affecting the normal operation of the heat pump outdoor unit 100. After the heat pump outdoor unit 100 is started, the damper 41 opens the first air outlet 121 to achieve normal air discharge from the first air outlet 121.

[0046] According to some embodiments of the present invention, referring to Figure 1 The damper 41 is rotatably connected to the outdoor housing 1. By making the damper 41 rotatable with the outdoor housing 1, the damper 41 can be rotated to conveniently open or close the first air outlet 121. 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.

[0047] According to some embodiments of the present invention, referring to Figure 9 The damper 41 includes a damper body 411 and a damper shaft 412. The damper 41 is rotatable about 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 the damper body 411 and the damper shaft 412, and making the damper shaft 412 rotatably connected to the inner wall of the first air outlet 121, the damper 41 is conveniently rotatably connected to the outdoor housing 1, and the assembly of the damper 41 and the outdoor housing 1 is relatively simple.

[0048] According to some embodiments of the present invention, referring to Figure 4-Figure 9 The damper assembly 4 includes a plurality of dampers 41, which together close the first air outlet 121. By having the damper assembly 4 include a plurality of dampers 41 and having the plurality of dampers 41 together close the first air outlet 121, the area of a single damper 41 can be relatively reduced, reducing the weight of a single damper 41, making the force required to rotate a single damper 41 smaller, and reducing the energy consumption required to rotate the damper 41. Furthermore, the structural strength of the damper 41 can be increased, reducing the impact of bending and deformation of the damper 41 caused by collisions with debris in the outdoor environment.

[0049] For example, multiple dampers 41 can be connected by a connecting rod, and the damper 41 motor that drives the damper 41 to move can be traversably connected to the connecting rod. The damper 41 motor drives the connecting rod to move, thereby driving multiple dampers 41 to move synchronously to open or close the first air outlet 121.

[0050] According to some embodiments of the present invention, referring to Figure 4-Figure 9By arranging the plurality of dampers 41 in the front-to-back direction, the width of each damper 41 can be reduced and the number of dampers 41 can be reduced, which helps to reduce the movement range of each damper 41 and also reduces the difficulty of installing the damper assembly 4.

[0051] According to some embodiments of the present invention, referring to Figure 4-Figure 9 Each damper 41 is rotatable, with its axis of rotation extending in the left-right direction. Rotation of the damper 41 facilitates opening or closing the first air outlet 121. Furthermore, rotation of the damper 41 adjusts the air outlet area and direction of the first air outlet 121. Furthermore, the rotation range of each damper 41 can be kept small, making control easier.

[0052] According to some embodiments of the present invention, referring to Figure 1-Figure 3 The first air outlet 121 is located at the top of the outdoor casing 1. By locating the first air outlet 121 at the top of the outdoor casing 1, at least part of the air flow can be discharged from the top of the outdoor casing 1, reducing the discomfort caused by the impact of the air outlet from the front on the human body. The damper assembly 4 and the heating assembly are arranged at the first air outlet 121 located at the top, which can effectively reduce the entry of external debris into the casing through the first air outlet 121. Moreover, by enabling the damper assembly 4 to close the first air outlet 121, the damper assembly 4 can more effectively prevent foreign matter from entering the interior of the heat pump outdoor unit 100 through the first air outlet 121.

[0053] According to some embodiments of the present invention, referring to Figure 7 and Figure 8 When the damper assembly 4 closes the first air outlet 121, the outward-facing surface of the damper 41 is the first surface 42. At least a portion of the first surface 42 constitutes a guide surface 421, which extends downwardly and obliquely. By extending the guide surface 421 downwardly and obliquely, snow water that falls onto the guide surface 421 flows downward along the guide surface 421 under its own gravity and eventually leaves the guide surface 421. This prevents excessive snow water from accumulating on the guide surface 421, thereby 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. Furthermore, it also reduces the deformation of the damper 41 due to excessive weight pressure from the snow water due to excessive snow water accumulation on the guide surface 421.

[0054] According to some embodiments of the present invention, referring to Figure 7 and Figure 8, the angle between the guide surface 421 and the horizontal plane is α, 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 be made to have a downward tilt feature, thereby avoiding excessive snow and water accumulation on the guide surface 421, reducing the problem of the damper 41 being frozen and difficult to open or close due to the accumulation of snow and water on the guide surface 421; and it can also reduce the deformation of the damper 41 due to excessive weight pressure of the snow and water caused by excessive accumulation of snow and water on the guide surface 421; by making the angle α between the guide surface 421 and the horizontal plane not exceed 15°, the air flow can be made to flow out from the first air outlet 121 of the frame top 311 more smoothly, reducing the flow resistance of the air flow out of the first air outlet 121 at the frame top 311.

[0055] According to some embodiments of the present invention, referring to Figure 7 and Figure 8 The first air outlet 121 is located at the front end of the outdoor housing 1, and the guide surface 421 extends downwardly and obliquely in the front-to-back direction. By extending the guide surface 421 obliquely and downwardly in the front-to-back direction, the guide surface 421 can guide snow and water, allowing the snow and water that falls on the guide surface 421 to flow downward under the action of its own gravity. Since the first air outlet 121 is located at the front end of the outdoor housing 1, this snow and water can be discharged from the top of the heat pump outdoor unit 100 from the front end of the outdoor housing 1, making it easier to discharge from the front side of the outdoor housing 1, thereby further reducing the accumulation of snow or water on the top of the heat pump outdoor unit 100.

[0056] According to some embodiments of the present invention, referring to Figure 7 and Figure 8 The guide surface 421 extends downwardly and tilted from back to front. Since the space in front of the heat pump outdoor unit 100 is usually larger, snow water can more easily drain out of the heat pump outdoor unit 100. By extending the guide surface 421 tilted downwardly and tilted in the front-to-back direction, the guide surface 421 can guide the snow water. Snow water that falls on the guide surface 421 flows downward and forward simultaneously under its own gravity, making it easier to drain out of the heat pump outdoor unit 100.

[0057] For example, the air inlet 11 of the heat pump outdoor unit 100 is located on the rear side of the heat pump outdoor unit 100. By making the guide surface 421 extend downward in an inclined direction from the back to the front, the snow water falling on the guide surface 421 flows downward and forward at the same time under the action of its own gravity, which can prevent the snow water from clogging the air inlet 11 of the heat pump outdoor unit 100 and causing insufficient air intake of the heat pump outdoor unit 100.

[0058] According to some embodiments of the present invention, the upper surface of the outdoor 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 no higher than the first surface 42. After snow water falls onto the first surface 42, it flows along the first surface 42 under its own gravity to between the first surface 42 and the second surface. By ensuring that the second surface is no higher than the first surface 42 when the damper assembly 4 closes the first air outlet 121, this snow water can be prevented from accumulating between the second surface 42 and the first surface 42 and becoming difficult to drain, thereby allowing this snow water to be more easily drained from the heat pump outdoor unit 100.

[0059] For example, the second surface is flush with the lowest point of the first surface 42 ; for another example, the second surface is lower than the lowest point of the first surface 42 .

[0060] According to some embodiments of the present invention, referring to Figure 5-Figure 8 The damper assembly 4 includes multiple dampers 41. When the damper assembly 4 closes the first air outlet 121, the guide surfaces 421 of at least some of the dampers 41 are arranged coplanarly. By arranging the guide surfaces 421 of at least some of the dampers 41 coplanarly, these guide surfaces 421 can guide snow water that falls onto the guide surfaces 421 in the same direction. This allows the multiple guide surfaces 421 to jointly guide the snow water, resulting in a better guiding effect of the guide surfaces 421, allowing the snow water to be more easily discharged from the heat pump outdoor unit 100. Furthermore, this can prevent some snow water from accumulating between the different guide surfaces 421 of the dampers 41, making it difficult to discharge, and can reduce the amount of snow water that falls into the outdoor housing 1 through the gaps between the different guide surfaces 421 of the dampers 41.

[0061] According to some embodiments of the present invention, referring to Figure 6 and Figure 8 The heat pump outdoor unit 100 includes a heating component, which is used to heat the damper 41. By including the heating component in the heat pump outdoor unit 100 and heating the damper 41, the ice and snow on the damper 41 can be melted, preventing the ice and snow from blocking the first air outlet 121 and reducing the actual air outlet area of the heat pump outdoor unit 100. In addition, the damper 41 can be opened or closed normally, preventing the ice and snow from freezing the damper 41 and making it difficult to open or close the damper 41.

[0062] According to some embodiments of the present invention, referring to Figure 6 and Figure 8The heating assembly includes a heating element 5, and the heating element 5 is provided at 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 and difficult to move. By making the heating assembly include a heating element 5, and making the heating element 5 provided at the damper 41, the heating element 5 can heat the damper 41, melt the ice and snow on the damper 41, and enable the damper 41 to move smoothly to open or close the first air outlet 121, thereby preventing the damper 41 from being stuck or damaged by the ice and snow. In addition, by heating the damper 41 through the heating element 5, the temperature of the damper 41 is increased, so that the snow, frost or ice accumulated in the damper 41 can be quickly melted into water and discharged, so as to reduce the first air outlet 121 from being blocked and affecting the air outlet efficiency, so that the air flow can flow out of the first air outlet 121 more smoothly.

[0063] According to some embodiments of the present invention, the heating element 5 is an electric heating element 5. By using an electric heating element 5, the starting and stopping of the heating element 5 is made more convenient, and the connection and installation of the heating element 5 are more convenient. 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 frame top 311, and the electric heating element 5 itself can also achieve relatively precise power adjustment, thereby accurately controlling the heating amount.

[0064] For example, the heating element 5 may be in the shape of a heating wire, a heating strip, a heating sheet, a heating net, or the like.

[0065] According to some embodiments of the present invention, referring to Figure 8 The heating element 5 is embedded in the damper 41. By embedding the heating element 5 in the damper 41, the connection between the heating element 5 and the damper 41 is made tighter, and the heating element 5 is more effectively prevented from falling off the damper 41 and causing heating failure. Furthermore, by embedding the heating element 5 in the damper 41, the risk of burns or electric shock caused by accidentally touching the heating element 5 can be avoided or reduced, thereby improving safety.

[0066] According to some embodiments of the present invention, the damper 41 is a heat conductor. By making the damper 41 a heat conductor, the damper 41 can evenly transfer the heat generated by the heating element 5 to various parts of the damper 41, making the temperature of the damper 41 more uniform overall, avoiding excessive local heat in the damper 41 that affects the structural strength of the damper 41, and avoiding insufficient local heat in the damper 41 that affects the defrosting effect. This can improve the overall defrosting effect of the damper 41, better reduce the risk of the first air outlet 121 being partially or completely blocked, and more effectively prevent the damper 41 from being frozen by ice and snow and unable to open and close normally.

[0067] 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, thereby increasing the temperature of the damper 41 and melting the ice and snow accumulated 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 being frozen by ice and snow and unable to open and close normally, and also better reducing the risk of the first air outlet 121 being partially or completely blocked.

[0068] According to some embodiments of the present invention, the damper 41 is a metal component, and a heat-conducting layer is provided between the heater 5 and the damper 41, and the heat-conducting layer is a heat-conducting insulating layer. By making the damper 41 a metal component, the rigidity of the damper 41 can be increased, and deformation of the damper 41 caused by pressure can be reduced; by providing a heat-conducting layer between the heater 5 and the damper 41, the heat-conducting layer can transfer the heat generated by the heater 5 to the damper 41, raising the temperature of the damper 41, thereby melting the ice and snow accumulated above the damper 41, allowing the damper 41 to move smoothly to open or close the first air outlet 121, and more effectively preventing the damper 41 from being stuck or damaged by ice and snow; by making the heat-conducting layer a heat-conducting insulating layer, electrical connection between the heater 5 and the damper 41 can be avoided, avoiding the risk of short circuit caused by the damper 41 being electrified.

[0069] According to some embodiments of the present invention, the heat pump outdoor unit 100 further includes a temperature detection component, 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 heat pump outdoor unit 100. When the ambient temperature is too low or the temperature of the outdoor heat exchanger is too low, ice, frost, or snow may easily form on the damper 41. By making the heat pump outdoor unit 100 include a temperature detection component, the temperature detection component can 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 heat pump outdoor unit 100. The heat pump outdoor unit 100 can control the heating component to be turned on or off according to the temperature detected by the temperature detection component, thereby achieving automatic heating, more effectively preventing the damper 41 from being stuck or damaged by ice and snow, and reducing the risk of the first air outlet 121 being blocked by ice and snow.

[0070] For example, when the temperature detection component detects that the outdoor ambient temperature or the outdoor heat exchanger is low, it means that the damper 41 has a greater risk of ice or frost, which may cause the first air outlet 121 to be blocked or the damper 41 to be frozen. At this time, the controller of the heat pump outdoor unit 100 can control the heating element 5 to turn on to achieve ice, frost or snow melting on the damper 41. After the ice, frost or snow melting is completed, the controller of the heat pump outdoor unit 100 can control the heating element 5 to turn off. In addition, when the heating element 5 is turned on to melt ice, frost or snow on the damper 41, the heating power of the heating element 5 can be adjusted according to the outdoor ambient temperature or the outdoor heat exchanger. For example, the lower the outdoor ambient temperature or the temperature of the outdoor heat exchanger, the greater the heating power can be adjusted.

[0071] According to some embodiments of the present invention, referring to Figures 1-10 The outdoor housing 1 includes a housing body 2, a front baffle 23, and an air outlet frame 3. The air outlet frame 3 is arranged on the front side of the housing body 2. The front baffle 23 is arranged between the housing body 2 and the air outlet frame 3. The housing body 2 and the front baffle 23 jointly define an installation cavity 22. The heat exchange and exhaust assembly 6 is arranged in the installation cavity 22. The air outlet frame 3 and the front baffle 23 jointly define an outlet cavity. The front baffle 23 is provided with an air outlet 24. The air outlet 24 connects the outlet cavity and the installation cavity 22. The housing body 2 is provided with an air inlet 11 connected to the installation cavity 22, and the air outlet frame 3 is provided with an air outlet 12 connected to the outlet cavity. When the heat pump outdoor unit 100 is in operation, external air enters the installation cavity 22 through the air inlet 11 and flows toward the heat exchange and exhaust assembly 6. The air after heat exchange in the heat exchange and exhaust assembly 6 flows into the outlet cavity through the air outlet 24, and then flows out of the heat pump outdoor unit 100 through the air outlet 12.

[0072] By disposing the heat exchange and exhaust assembly 6 in the installation cavity 22, the heat exchange and air supply assembly can heat the airflow entering the installation cavity 22 and guide the heat-exchanged airflow to the airflow outlet 24 so that the heat-exchanged airflow can flow out more smoothly from the airflow outlet 24. The air outlet 24 connects the air outlet cavity and the installation cavity 22, allowing the airflow in the installation cavity 22 to flow more smoothly into the air outlet cavity and then be discharged from the air outlet 12.

[0073] The air outlet frame 3 is arranged on the front side of the casing main body 2, the casing main body 2 and the front partition 23 jointly define the installation cavity 22, and the air outlet frame 3 and the front partition 23 jointly define the air outlet cavity, the heat exchange exhaust component 6 is arranged in the installation cavity 22 and the air outlet frame 3 is provided with an air outlet 12 connected to the air outlet cavity, the air outlet cavity and the installation cavity 22 can be arranged in an orderly manner, reducing the space in the installation cavity 22 occupied by the air outlet cavity, which is beneficial to the layout optimization in the installation cavity 22; and, the air outlet frame 3 and the front partition 23 jointly define the air outlet cavity, the flow cross-section of the gas in the air outlet cavity can be made larger than the flow cross-section of the air flow at the airflow outlet 24. In this way, when the air flow rate is constant, the flow cross-section of the gas in the air outlet cavity is larger than the flow cross-section of the air flow at the airflow outlet 24, which can play a buffering role on the airflow flowing out of the airflow outlet 24, can reduce or avoid the airflow directly impacting the human body with an excessively high flow rate, thereby reducing the discomfort of the human body and helping to improve the user experience.

[0074] Optionally, the air outlet 24 may be covered with an air outlet mesh cover 33 , and the air outlet mesh cover 33 blocks foreign matter that enters the air outlet cavity from entering the installation cavity 22 .

[0075] According to some embodiments of the present invention, referring to Figure 10 The outdoor casing 1 includes a middle partition 21, which is arranged in the casing body 2 to separate the installation cavity 22 into a first installation cavity 221 and a second installation cavity 222 arranged along the left and right directions. 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 arranged in the first installation cavity 221, and the compressor is arranged in the second installation cavity 222. The air inlet 11 and the air outlet cavity are both connected to the first installation cavity 221.

[0076] The installation cavity 22 is divided into a first installation cavity 221 and a second installation cavity 222 by the middle partition 21, so that the outdoor heat exchanger and the outdoor fan 61 in the first installation cavity 221 can be separated from the compressor in the second installation cavity 222, so that the outdoor heat exchanger, the outdoor fan 61 and the compressor are arranged in an orderly manner, and the outdoor heat exchanger, the outdoor fan 61 and the compressor can be avoided from interfering with each other. By arranging the compressor, the outdoor heat exchanger and the outdoor fan 61 in different cavities respectively, the interference of the compressor on the outdoor heat exchanger and the outdoor fan 61 can be reduced.

[0077] Since both the air inlet 11 and the air outlet cavity are connected to the first installation cavity 221, external air can enter the first installation cavity 221 through the air inlet 11 to exchange heat with the outdoor heat exchanger. The airflow after heat exchange can be driven by the outdoor fan 61 and flow into the air outlet cavity through the air flow outlet 24 for buffering before being discharged to the outside of the heat pump outdoor unit 100, thereby reducing the discomfort caused by the impact of the outlet airflow on the human body.

[0078] In addition, the installation chamber 22 is divided into a first installation chamber 221 and a second installation chamber 222 by the central partition 21. This partitioning design makes maintenance and repair of each component more convenient. Maintenance personnel can open the corresponding chamber for inspection and repair in a targeted manner without having to perform large-scale disassembly of the entire heat pump outdoor unit 100. For example, if the outdoor fan 61 fails, only the relevant part of the first installation chamber 221 needs to be opened for inspection, without affecting the compressor located in the second installation chamber 222. This greatly shortens maintenance time and improves maintenance efficiency.

[0079] Reference Figure 10 According to some embodiments of the present invention, the projection of the first installation cavity 221 on the reference plane is the first projection, the projection of the second installation cavity 222 on the reference plane is the second projection, and the projection of the air outlet cavity on the reference plane is the third projection. At least a portion of the first projection overlaps with the third projection, and at least a portion of the second projection overlaps with the third projection. The reference plane is a plane perpendicular to the front-to-back direction. The overlap of at least a portion of the first projection with the third projection may include the following situations: for example, a portion of the first projection may overlap with the third projection; or as another example, the entire first projection may overlap with the third projection. The overlap of at least a portion of the second projection with the third projection may include the following situations: for example, a portion of the second projection may overlap with the third projection; or as another example, the entire second projection may overlap with the third projection.

[0080] By making at least a portion of the first projection coincide with the third projection, at least a portion of the resulting air cavity can be opposite to the first installation cavity 221 in the front-to-back direction, and by making at least a portion of the second projection coincide with the third projection, at least a portion of the resulting air cavity can be opposite to the second installation cavity 222 in the front-to-back direction, so that the air outlet cross-sectional area of the resulting air cavity can be larger. In this way, when the airflow in the first installation cavity 221 flows into the air outlet cavity with a larger air outlet cross-sectional area through the airflow outlet 24, the flow area of the airflow is increased, and the flow velocity and impact force of the airflow flowing into the air outlet cavity can be effectively reduced, thereby effectively buffering the airflow flowing into the air outlet cavity. In this way, after the airflow buffered by the air outlet cavity is discharged from the air outlet 12, the discomfort caused by the impact on the human body can be better reduced.

[0081] Reference Figures 1-10 According to some embodiments of the present invention, the depth of the air outlet cavity in the front-to-back direction is smaller than the depth of the mounting cavity 22 in the front-to-back direction. By making the depth of the air outlet cavity smaller than the depth of the mounting cavity 22 in the front-to-back direction, the airflow flowing out of the air outlet 24 in the air outlet cavity is buffered, and the overall front-to-back dimensions of the heat pump outdoor unit 100 can be made smaller, thereby reducing the space occupied by the heat pump outdoor unit 100.

[0082] Reference Figure 10 According to some embodiments of the present invention, the ratio of the depth of the air outlet cavity in the front-to-back direction to the depth of the installation cavity 22 in the front-to-back direction ranges from 0.1 to 0.5. For example, the ratio of the depth of the air outlet cavity in the front-to-back direction to the depth of the installation cavity 22 in the front-to-back direction can be 0.1, 0.2, 0.3, 0.4, 0.5, etc. By ensuring that the ratio of the depth of the air outlet cavity in the front-to-back direction to the depth of the installation cavity 22 in the front-to-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 excessive airflow on the human body. By ensuring that the ratio of the depth of the air outlet cavity in the front-to-back direction to the depth of the installation cavity 22 in the front-to-back direction is not greater than 0.5, the depth of the air outlet cavity in the front-to-back direction can be set more reasonably. As a result, the heat pump outdoor unit 100 can reduce the discomfort caused by the impact of the outlet airflow on the human body while reducing the overall front-to-back dimensions of the heat pump outdoor unit 100, thereby reducing the space occupied by the heat pump outdoor unit 100.

[0083] By setting the ratio of the depth of the air outlet cavity in the front-to-back direction to the depth of the installation cavity 22 in the front-to-back direction in the range of 0.1 to 0.5, the buffering effect of the air outlet cavity on the airflow and the overall size of the heat pump outdoor unit 100 in the front-to-back direction can be better balanced.

[0084] According to some embodiments of the present invention, referring to Figure 3 The air outlet frame 3 is detachably connected to the casing body 2. This facilitates maintenance or replacement of the air outlet frame 3 or the casing body 2. For example, a hook may be provided on one of the air outlet frame 3 and the casing body 2, and a slot may be provided on the other of the air outlet frame 3 and the casing body 2. The hook and the slot are engaged to achieve a detachable connection between the air outlet frame 3 and the casing body 2, making the connection between the air outlet frame 3 and the entire casing simple and highly stable. Alternatively, the air outlet frame 3 and the casing body 2 may be connected by fasteners, which also achieves a detachable connection between the air outlet frame 3 and the casing body 2.

[0085] According to some embodiments of the present invention, referring 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. The front panel 32 is covered on the front side of the frame portion 31. The frame portion 31 is connected between the front panel 32 and the casing body 2. The air outlet 12 is formed in the frame portion 31.

[0086] The frame 31 can support the front panel 32. The front panel 32 is placed on the front side of the frame 31 to shield the structure inside the air outlet frame 3, which helps to improve the overall aesthetics of the heat pump outdoor unit 100. The air outlet 12 is formed in the frame 31, so that the air flow can be discharged through the periphery of the heat pump outdoor unit 100. For example, the air flow can be discharged from the top, side or bottom of the heat pump outdoor unit 100, avoiding the discomfort caused by the air flow blowing directly from the front to the human body.

[0087] For example, when the heat pump outdoor unit 100 in the related art is installed on the first floor and faces the road, the airflow after heat exchange is blown out from the front side of the heat pump outdoor unit 100, which may blow onto pedestrians passing by, causing discomfort to pedestrians. Especially in the hot summer, the hot air after heat exchange blowing onto pedestrians will aggravate the discomfort. By forming the air outlet 12 on the frame portion 31, the airflow can be discharged through the side of the heat pump outdoor unit 100, which can effectively reduce the discomfort caused by the airflow blowing directly from the front side of the heat pump outdoor unit 100 onto pedestrians.

[0088] According to some embodiments of the present invention, referring to Figure 10 The frame portion 31 includes a frame top portion 311, which is located at the top of the frame portion 31. The first air outlet 121 is provided at the frame top portion 311. By providing the first air outlet 121 at the frame top portion 311, the airflow can be discharged more smoothly from the frame top portion 311 to the outside of the heat pump outdoor unit 100. For example, in hot summer, the temperature of the airflow after heat exchange in the heat pump outdoor unit 100 is relatively high. According to the physical property of hot air rising, the airflow with a higher temperature will flow upward. By providing at least a portion of the air outlet 12 at the frame top portion 311, this part of the airflow with a higher temperature can be facilitated to flow out of the air outlet 12 to the outside of the heat pump outdoor unit 100 more smoothly, and the discomfort caused by the airflow to the human body can be reduced.

[0089] According to some embodiments of the present invention, referring to Figure 2 The frame portion 31 includes a frame bottom portion 312 located at the bottom, and the air outlet 12 includes a second air outlet 122 . The second air outlet 122 is arranged at the frame bottom portion 312 , and at least a portion of the second air outlet 122 constitutes the drain port 13 .

[0090] Among them, at least part of the second air outlet 122 constitutes the drain outlet 13, which may include the following situations: for example, part of the second air outlet 122 may constitute the drain outlet 13; for another example, the entire second air outlet 122 may constitute the drain outlet 13.

[0091] 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 downward 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, thereby preventing water falling into the air outlet cavity from accumulating in the air outlet cavity.

[0092] According to some embodiments of the present invention, referring to Figures 1-4 The frame portion 31 includes a frame bottom portion 312 and a frame side portion 313. The frame bottom portion 312 is located at the bottom of the frame portion 31. The frame side portion 313 connects the frame top portion 311 and the left and right sides of the frame bottom portion 312. The air outlet 12 includes a third air outlet 123, which is located on the frame side portion 313. The first air outlet 121 of the frame top portion 311 facilitates the upward discharge of higher-temperature air. The third air outlet 123 of the frame side portion 313 increases the air outlet area from the side of the heat pump outdoor unit 100, which can prevent airflow from accumulating at the side and further improve the overall air outlet efficiency. By forming the air outlet 12 on both the frame top portion 311 and the frame side portion 313, the air outlet area can be increased, the overall air outlet efficiency of the heat pump outdoor unit 100 can be improved, and the airflow can be prevented from directly impacting the human body from the front side of the frame portion 31 at an excessively high flow rate, thereby reducing human discomfort.

[0093] Reference Figures 1-4 According to some embodiments of the present invention, the first air outlet 121 includes a plurality of first sub-air outlets 12 spaced apart from each other, and the third air outlet 123 includes a plurality of second sub-air outlets 12 spaced apart from each other, with the cross-sectional area of a single first sub-air outlet 12 being smaller than the cross-sectional area of a single second sub-air outlet 12. The smaller cross-sectional areas of the multiple first sub-air outlets 12 at the frame top 311 can effectively prevent external foreign matter from directly entering the air outlet cavity. The larger cross-sectional areas of the second sub-air outlets 12 at the frame side 313 can enable airflow to be discharged more smoothly from the side to the exterior of the heat pump outdoor unit 100, thereby improving the air outlet efficiency of the heat pump outdoor unit 100.

[0094] 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 air flow can be discharged from multiple directions of the frame 31 to the outside of the heat pump outdoor unit 100, which can increase the air outlet area, improve the air outlet efficiency, and reduce the discomfort caused by the impact of the air outlet airflow on the human body.

[0095] The heat pump system according to the second embodiment of the present invention includes: an air conditioner indoor unit; and a heat pump outdoor unit 100 according to the first embodiment of the present invention.

[0096] According to the heat pump system of the embodiment of the present invention, by including the heat pump outdoor unit 100 according to the first embodiment of the present invention, it is possible to reduce external debris and the like from entering the outdoor casing 1 through the first air outlet 121 located at the top.

[0097] According to a control method of a heat pump outdoor unit 100 according to an embodiment of a third aspect of the present invention, the heat pump outdoor unit 100 is the heat pump outdoor unit 100 according to the embodiment of the first aspect of the present invention, and the control method of the heat pump outdoor unit 100 includes: Detect the ambient temperature or the temperature of the outdoor heat exchanger; The heating component and the damper component 4 are controlled according to the ambient temperature or the temperature of the outdoor heat exchanger.

[0098] For example, the ambient temperature can be detected, and the heating component and the damper component 4 can be controlled according to the ambient temperature. When the ambient temperature is low, there is a risk of ice or frost on the damper 41 or there is a high possibility of snow accumulation. The heating component is turned on to heat and melt the ice, frost or snow on the damper 41 to prevent ice and snow on the damper 41 from blocking the first air outlet 121.

[0099] For example, when the damper 41 needs to be opened or closed, if the ambient temperature is detected to be low, it means that there is a risk of ice or frost on the damper 41 or there is a high possibility of snow accumulation. In order to enable the damper 41 to be opened or closed normally, the heating component can be turned on first to heat and melt the ice, frost or snow on the damper 41, and then the damper 41 can be controlled to open or close.

[0100] For example, the temperature of the outdoor heat exchanger can be detected, and the heating component and the 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 risk of ice or frost on the damper 41 or there is a high possibility of snow accumulation. The heating component is turned on to heat and melt the ice, frost or snow on the damper 41 to prevent ice and snow on the damper 41 from blocking the first air outlet 121.

[0101] For example, when the damper 41 needs to be opened or closed, if the temperature of the outdoor heat exchanger is detected to be low, it means that there is a risk of ice or frost on the damper 41 or there is a high possibility of snow accumulation. In order to enable the damper 41 to be opened or closed normally, the heating component can be turned on first to heat and melt the ice, frost or snow on the damper 41, and then the damper 41 can be controlled to open or close.

[0102] According to the control method of the heat pump outdoor unit 100 in an embodiment 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 prevent ice and snow from blocking the air outlet 12, resulting in a reduction in the actual air outlet area of the heat pump outdoor unit 100, and the damper 41 can also be opened or closed normally.

[0103] According to some embodiments of the present invention, controlling the heating assembly and the damper assembly 4 according to the ambient temperature or the temperature of the outdoor heat exchanger includes: The damper assembly 4 receives a door opening and closing instruction, which includes an instruction to open the damper 41 or an instruction to close the damper 41; 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 and closing command is executed to open or close the damper 41; When the ambient temperature is greater than or equal to the first preset temperature, the door opening / closing instruction is executed to open or close the damper 41 .

[0104] When the ambient temperature is too low, for example, when the ambient temperature is lower than a first preset temperature, there is a risk of ice or frost forming on the damper 41, or there is a high probability of snow accumulation. The damper 41 may be frozen and become stuck or damaged by the ice or snow. By first turning on the heating component for a preset time when the ambient temperature is lower than the first preset temperature, and then executing the door opening and closing command, the heating component can increase the temperature of the damper assembly 4, melt the ice and snow on the damper 41, and enable the damper 41 to move smoothly to open or close the first air outlet 121, thereby more effectively preventing the damper 41 from being frozen and becoming stuck or damaged by the ice or snow. The preset time can be 2 minutes to 10 minutes.

[0105] When the ambient temperature is high, for example, when the ambient temperature is greater than or equal to the first preset temperature, it means that there is a risk of ice or frost on the damper 41 or the possibility of snow accumulation is low, and the damper 41 will not be stuck or damaged due to freezing of ice and snow. By making the ambient temperature greater than or equal to the first preset temperature, the door opening and closing instructions are directly executed, and the first air outlet 121 can be quickly opened.

[0106] For example, when the heat pump outdoor unit 100 is started, the damper assembly 4 receives a door-opening instruction, and 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 instruction is executed to cause the damper assembly 4 to open the damper 41; if the ambient temperature is lower than the first preset temperature, the heating assembly is turned on first, and the heating assembly increases the temperature of the damper 41 and melts the ice and snow on the damper 41. After the heating assembly works for a preset time, the door-opening instruction is executed to cause the damper assembly 4 to open the damper 41.

[0107] For example, when the heat pump outdoor unit 100 is turned off, the damper assembly 4 receives a closing command, and 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 to cause 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 increases the temperature of the damper 41 and melts the ice and snow on the damper 41, and after the heating assembly works for a preset time, the closing command is executed to cause the damper assembly 4 to close the damper 41.

[0108] According to some embodiments of the present invention, controlling the heating assembly and the damper assembly 4 according to the ambient temperature or the temperature of the outdoor heat exchanger includes: When the damper 41 is in the open state, the heating component is controlled according to the ambient temperature or the temperature of the outdoor heat exchanger; When the ambient temperature is lower than a first preset temperature or the outdoor heat exchanger temperature is lower than a second preset temperature, the heating component is turned on, wherein the first preset temperature may be higher than the second preset temperature.

[0109] When the damper 41 is in the open state, when the ambient temperature or the outdoor heat exchanger is too low, there is a risk of ice or frost forming on the damper 41, or there is a high probability of snow accumulation, and the damper 41 may be frozen by ice and snow and become stuck or damaged. 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, so that the heating component raises the temperature of the damper 41 and melts the ice and snow on the damper 41, thereby preventing the ice and snow on the damper 41 from blocking the first air outlet 121 and affecting the air output of the first air outlet 121.

[0110] Refer to the following Figures 1-10 The heat pump outdoor unit 100 according to some specific embodiments of the present invention will be described.

[0111] In this embodiment, the heat pump outdoor unit 100 comprises an outdoor casing 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 in the outdoor casing 1.

[0112] The outdoor housing 1 is provided with an air inlet 11 and an air outlet 12, and the air outlet 12 includes a first air outlet 121. The outdoor housing 1 includes a housing body 2, a front baffle 23, and an air outlet frame 3. The air outlet frame 3 is arranged on the front side of the housing body 2, and the front baffle 23 is arranged between the housing body 2 and the air outlet frame 3. The housing body 2 and the front baffle 23 jointly define an installation cavity 22, and the heat exchange and exhaust assembly 6 is arranged in the installation cavity 22. The air outlet frame 3 and the front baffle 23 jointly define an air outlet cavity. The front baffle 23 is provided with an air flow outlet 24, and the air flow outlet 24 connects the air outlet cavity and the installation cavity 22. The housing body 2 is provided with an air inlet 11 connected to the installation cavity 22, and the air outlet frame 3 is provided with an air outlet 12 connected to the air outlet cavity. The outdoor casing 1 includes a middle partition 21, which is arranged in the casing body 2 to separate the installation cavity 22 into a first installation cavity 221 and a second installation cavity 222 arranged along the left and right directions. 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 arranged in the first installation cavity 221, and the compressor is arranged in the second installation cavity 222. The air inlet 11 and the air outlet cavity are both connected to the first installation cavity 221.

[0113] The air outlet frame 3 is detachably connected to the housing body 2. The air outlet frame 3 includes a frame portion 31 and a front panel 32. The frame portion 31 is annular in shape. 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 housing body 2. The air outlet 12 is formed in the frame portion 31. The frame portion 31 includes a frame top portion 311, which is located at the top of the frame portion 31. The first air outlet 121 is located at the frame top portion 311. The frame portion 31 includes a frame bottom portion 312, which is located at the bottom. The air outlet 12 includes a second air outlet 122, which is located at the frame bottom portion 312. At least a portion of the second air outlet 122 constitutes the drain port 13. The frame portion 31 includes a frame bottom portion 312 and a frame side portion 313. The frame top portion 311 is located at the top of the frame portion 31, the frame bottom portion 312 is located at the bottom of the frame portion 31, and the frame side portion 313 is connected to the left and right sides of the frame top portion 311 and the frame bottom portion 312. The air outlet 12 includes a third air outlet 123, and the third air outlet 123 is arranged on the frame side portion 313.

[0114] The damper assembly 4 is mounted on the top of the outdoor 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 housing 1. The damper 41 includes a damper body 411 and a damper shaft 412. The damper 41 is rotatable about the damper shaft 412, which is rotatably connected to the inner wall of the first air outlet 121. The damper assembly 4 includes multiple dampers 41, which collectively close the first air outlet 121. The multiple dampers 41 are arranged in a front-to-back direction, and each damper 41 is rotatable, with the rotation axis of the damper 41 extending in the left-to-right direction.

[0115] The first air outlet 121 is located at the top of the outdoor housing 1. When the damper assembly 4 closes the first air outlet 121, the outward-facing surface of the damper 41 is the first surface 42. At least a portion of the first surface 42 constitutes a guide surface 421. The guide surface 421 extends downwardly and 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 housing 1. The guide surface 421 extends downwardly and at an angle from back to front. The damper assembly 4 includes a plurality of dampers 41. When the damper assembly 4 closes the first air outlet 121, the guide surfaces 421 of at least some of the dampers 41 are arranged coplanar.

[0116] The heating assembly is used to heat the damper 41. The heating assembly includes a heater 5, which is located within and embedded in the damper 41. The damper 41 is a heat-conducting element. The heater 5 is an electric heater 5, and the damper 41 is a metal element. A heat-conducting layer is provided between the heater 5 and the damper 41. The heat-conducting layer is a thermally conductive insulating layer. 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. The temperature detection assembly and the heating assembly are both electrically connected to the controller of the heat pump outdoor unit 100.

[0117] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0118] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0119] In the description of the present invention, "plurality" means two or more.

[0120] In the description of the present invention, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features not being in direct contact with each other but being in contact with each other via another feature therebetween.

[0121] In the description of the present invention, “on”, “above” and “above” a first feature of a second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0122] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses 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 any one or more embodiments or examples.

[0123] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A heat pump outdoor unit, characterized in that: include: An outdoor casing, the outdoor casing comprising a casing body, a front partition and an air outlet frame, the air outlet frame being arranged on the front side of the casing body, the front partition being arranged between the casing body and the air outlet frame, the casing body and the front partition jointly defining a mounting cavity, the air outlet frame and the front partition jointly defining an air outlet cavity, an air flow outlet being arranged on the front partition, the air flow outlet being connected to the air outlet cavity and the mounting cavity, the casing body being provided with an air inlet being connected to the mounting cavity, the air outlet frame being provided with an air outlet being connected to the air outlet cavity, the air outlet frame comprising a frame top located at the top, and the air outlet comprising a first air outlet arranged on the frame top; a damper assembly, provided in the outdoor housing and comprising at least one movable damper for opening and closing the first air outlet; The heat exchange and exhaust assembly is arranged in the installation cavity.

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

3. The heat pump outdoor unit 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. The damper shaft is rotatably connected to the inner wall of the first air outlet.

4. The heat pump outdoor unit according to claim 1, characterized in that: The damper assembly includes a plurality of dampers, and the plurality of dampers jointly close the first air outlet.

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

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

7. The heat pump outdoor unit according to claim 1, characterized in that: When the damper assembly closes the first air outlet, the outward-facing surface of the damper is the first surface, at least a portion of the first surface constitutes a guide surface, and the guide surface extends obliquely downward.

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

9. The heat pump outdoor unit according to claim 7, characterized in that: The guide surface extends obliquely downward in the front-rear direction.

10. The heat pump outdoor unit according to claim 9, characterized in that: The guide surface extends obliquely downward in a direction from rear to front.

11. The heat pump outdoor unit according to claim 7, characterized in that: The damper assembly includes a plurality of dampers. When the damper assembly closes the first air outlet, the guide surfaces of at least some of the dampers are arranged in the same plane.

12. The heat pump outdoor unit according to any one of claims 1 to 11, characterized in that: A heating component is included, and the heating component is used to heat the damper.

13. The heat pump outdoor unit according to claim 12, characterized in that: The heating assembly includes a heating element, and the heating element is arranged on the air door.

14. The heat pump outdoor unit according to claim 13, characterized in that: The heating element is embedded in the damper.

15. The heat pump outdoor unit according to claim 13, characterized in that: The damper is a heat conducting element; and / or the heating element is an electric heating element.

16. The heat pump outdoor unit according to claim 13, characterized in that: A heat-conducting layer is provided between the heating element and the damper.

17. The heat pump outdoor unit according to claim 16, characterized in that: The damper is a metal part, and the heat-conducting layer is a heat-conducting insulating layer.

18. The heat pump outdoor unit according to claim 12, characterized in that: It also includes a temperature detection component, 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 heat pump outdoor unit.

19. The heat pump outdoor unit according to any one of claims 1 to 11, characterized in that: The outdoor casing includes a middle partition, which is arranged in the casing body to divide the installation cavity into a first installation cavity and a second installation cavity arranged along the left and right directions. 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 arranged in the first installation cavity, the compressor is arranged in the second installation cavity, and the air inlet and the air outlet cavity are both connected to the first installation cavity.

20. The heat pump outdoor unit according to any one of claims 1 to 11, characterized in that: The air outlet frame is detachably connected to the casing body.

21. The heat pump outdoor unit according to any one of claims 1 to 11, characterized in that: The air outlet frame includes a frame portion and a front panel, the frame portion includes the frame top located at the top, the frame portion is annular, the front panel cover is arranged on the front side of the frame portion, the frame portion is connected between the front panel and the casing body, and the air outlet is formed in the frame portion.

22. The heat pump outdoor unit according to claim 21, characterized in that: The frame portion includes a frame bottom portion located at the bottom, and the air outlet includes a second air outlet. The second air outlet is arranged at the frame bottom portion, and at least a portion of the second air outlet constitutes a drain outlet.

23. The heat pump outdoor unit according to claim 21, characterized in that: 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 frame top and the left and right sides of the frame bottom, and the air outlet includes a third air outlet, and the third air outlet is arranged on the frame side portion.

24. A heat pump system, characterized in that: include: Air conditioner indoor unit; The heat pump outdoor unit according to any one of claims 1 to 23.

25. A control method for a heat pump outdoor unit, characterized in that: The heat pump outdoor unit is a heat pump outdoor unit according to any one of claims 12 to 18, 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.

26. The control method of the heat pump outdoor unit according to claim 25, characterized in that: Controlling the heating assembly and the damper assembly according to the ambient temperature or the temperature of the outdoor heat exchanger includes: The damper assembly receives a door opening and closing instruction, wherein the door opening and closing instruction includes an instruction to open the damper or an instruction to close the damper; When the ambient temperature is lower than a first preset temperature, the heating component is first turned on for a preset time, and then the door opening and closing instruction 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 and closing instruction is executed to open or close the damper.

27. The control method of the heat pump outdoor unit according to claim 25, characterized in that: Controlling the heating assembly and the damper assembly according to the ambient temperature or the temperature of the outdoor heat exchanger includes: When the damper is in an open state, controlling the heating component according to the ambient temperature or the temperature of the outdoor heat exchanger; When the ambient temperature is lower than a first preset temperature or the outdoor heat exchanger temperature is lower than a second preset temperature, the heating component is turned on.

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