An air conditioner

Abstract

The embodiment of the application provides an air conditioner, comprising an indoor unit, a fresh air device and an air duct, the indoor unit comprises an indoor heat exchanger and an indoor air duct, the indoor air duct is used for introducing heat exchange air flow into an indoor environment, the indoor heat exchanger is arranged in the indoor air duct, and the indoor heat exchanger has a windward surface and a leeward surface; the fresh air device comprises a shell, the shell has a fresh air channel, a fresh air inlet and a fresh air outlet; the air duct connects the shell and the indoor heat exchanger, and the air duct has a guide air channel, one end of the guide air channel is connected with the fresh air outlet, and the other end is connected with the windward surface. The air conditioner provided by the application guides the fresh air of the fresh air device to the windward surface of the indoor heat exchanger through the air duct, so that the fresh air flows to the indoor environment from the indoor air duct after heat exchange, the temperature difference between the fresh air and the indoor air is reduced, the user comfort is increased, in this way, the fresh air device does not need to additionally arrange a heat exchange module, the manufacturing cost is low, the occupied space of the fresh air device is reduced, and the overall volume of the air conditioner is reasonable.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and more particularly to an air conditioner. Background Technology

[0002] Taking a PTAC (Packaged Terminal Air Conditioner) window unit as an example, this air conditioner integrates cooling, heating, and fresh air functions. It includes a fresh air system that introduces fresh outdoor air into the room to achieve ventilation and reduce poor indoor air quality caused by closed doors and windows during cooling or heating. However, the fresh air system directly blows fresh air into the room, creating a temperature difference between the fresh air and indoor air, which can affect user comfort. Related technologies have incorporated a separate heat exchange module to process the fresh air before it is blown out, further enhancing user comfort. However, this method increases manufacturing costs and occupies more space, increasing the overall size of the air conditioner. Utility Model Content

[0003] In view of this, the present application aims to provide an air conditioner that improves indoor air comfort while reducing manufacturing costs.

[0004] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows: This application provides an air conditioner, including: An indoor unit includes an indoor heat exchanger and an indoor air duct. The indoor air duct is used to introduce heat exchange airflow into the indoor environment. The indoor heat exchanger is disposed in the indoor air duct and has a windward side and a leeward side. A fresh air device includes a housing, the housing having a fresh air duct, a fresh air inlet, and a fresh air outlet, the fresh air inlet being connected to the outdoor environment, and the fresh air duct connecting the fresh air inlet and the fresh air outlet; The air duct component connects the housing and the indoor heat exchanger. The air duct component has an air guide channel, one end of which is connected to the fresh air outlet and the other end is connected to the windward side.

[0005] In some embodiments, the duct component includes a first part and a second part connected to each other, the first part being located on one side of the indoor heat exchanger along a first direction and abutting the housing along a second direction, the second part being located on one side of the indoor heat exchanger along a second direction and abutting the indoor heat exchanger along a second direction, wherein the first direction and the second direction are perpendicular to each other with respect to the height direction of the air conditioner. And / or, the air duct component is an integral structure.

[0006] In some implementations, the fresh air device includes a fresh air fan and a filter element, which are located within the fresh air duct. The filter element is positioned upstream of the fresh air fan along the airflow direction to filter the airflow passing through the fresh air duct. The filter element and the fresh air fan are arranged along the height direction of the air conditioner.

[0007] In some embodiments, the housing includes a first housing portion and a second housing portion, the first housing portion being connected above the second housing portion, the second housing portion being connected to the first housing portion and the air duct component, the spaces within the first housing portion and the second housing portion jointly defining at least a portion of the fresh air channel, the fresh air inlet and the filter component being disposed in the first housing portion, and the fresh air outlet and the fresh air fan being disposed in the second housing portion; The filter element covers the fresh air inlet; or, the filter element covers the connection between the first shell and the second shell.

[0008] In some embodiments, the first shell portion is open along the second direction and on the side away from the indoor heat exchanger to form the fresh air inlet, and the second shell portion is open along the second direction and on the side facing the indoor heat exchanger to form the fresh air outlet; The bottom of the first shell portion has a first opening, and the top of the second shell portion has a second opening. The first opening and the second opening are connected, and the filter element covers the first opening. And / or, along the second direction toward the indoor heat exchanger, the filter element extends obliquely upward; wherein the second direction is perpendicular to the height direction.

[0009] In some embodiments, the fresh air device includes a fresh air damper and a fresh air fan, the fresh air fan being located within the fresh air duct, one end of the fresh air damper being rotatably connected to the housing, and the other end being a free end, to rotatably open or close the fresh air outlet; The fresh air damper can open the fresh air outlet under the impact of airflow when the fresh air fan is turned on, and close the fresh air outlet under the action of gravity when the fresh air fan is turned off.

[0010] In some embodiments, the fresh air device includes a rotating shaft and an elastic element, the fresh air damper is rotatably connected to the housing via the rotating shaft, one end of the elastic element is connected to the rotating shaft and the other end is connected to the fresh air damper, and the elastic element is at least used to limit the rotation angle of the fresh air damper when the fresh air damper opens the fresh air outlet.

[0011] In some implementations, the elastic element is a torsion spring; and / or, the rotation angle of the fresh air damper is 0° to 90°.

[0012] In some embodiments, the fresh air device includes a locking structure disposed at the edge of the fresh air outlet. When the fresh air door opens the fresh air outlet, the locking structure is separated from the fresh air door, and when the fresh air door closes the fresh air outlet, the locking structure is connected to the fresh air door.

[0013] In some implementations, the locking structure includes a first magnetic element, and the fresh air damper is provided with a second magnetic element, wherein the first magnetic element and the second magnetic element can be magnetically attracted separately.

[0014] In some implementations, the air conditioner includes an outdoor unit, a chassis, a housing, and a partition. The outdoor unit includes an outdoor heat exchanger, and the indoor heat exchanger is in heat exchange communication with the outdoor heat exchanger. The housing is disposed above the chassis. The outdoor unit and the indoor unit are disposed within the space defined by the chassis and the housing. The partition separates the indoor unit and the outdoor unit, and the fresh air device passes through the partition.

[0015] In some implementations, the chassis is provided with a guide rail, the bottom of the housing is slidably engaged with the guide rail, and the air conditioner includes a connector that passes through and connects the guide rail and the housing.

[0016] The air conditioner provided in this application embodiment has an air duct component that directs the fresh air from the fresh air device to the windward side of the indoor heat exchanger. This allows the fresh air to be heated before flowing from the indoor air duct into the indoor environment, reducing the temperature difference between the fresh air and the indoor air and increasing user comfort. As a result, the fresh air device does not require an additional heat exchange module, resulting in low manufacturing costs and reduced space occupation by the fresh air device, making the overall size of the air conditioner more reasonable. Furthermore, the air duct component also ensures that the fresh air flowing out of the fresh air outlet has a stable and reliable flow path, reducing the chance of fresh air damage and airflow overflow. It also facilitates adaptation to different installation positions of the fresh air device and the indoor heat exchanger, accurately directing the fresh air to the indoor heat exchanger. Attached Figure Description

[0017] Figure 1 This is a partial structural diagram of an air conditioner according to an embodiment of the present application, illustrating a portion of the outer casing structure; Figure 2 for Figure 1 A schematic diagram of the structure shown from another perspective; Figure 3 for Figure 1 A schematic diagram of the structure shown from another perspective; Figure 4 for Figure 3 The diagram shows a cross-sectional view of the structure along the AA direction, where the dashed line indicates the direction of fresh air flow. Figure 5 This is another schematic diagram of a partial structure of an air conditioner according to an embodiment of this application, where the dashed lines represent the flow direction of the fresh airflow. Figure 6 This is another schematic diagram of a partial structure of an air conditioner according to an embodiment of this application, where the dashed lines represent the flow direction of the fresh airflow. Figure 7 for Figure 6 Another schematic diagram of the structure shown, omitting the air duct components; Figure 8 This is a schematic diagram of the structure of a fresh air device according to an embodiment of this application; Figure 9 for Figure 1 Another schematic diagram of the structure shown, in which the air duct components are omitted; Figure 10 for Figure 9 A schematic diagram of the structure shown from another perspective; Figure 11 for Figure 10 An enlarged view of point B shown in the diagram; Figure 12 This is a schematic diagram showing the connection between the fresh air unit and the guide rail. Figure 13 This is a partial structural diagram of an air conditioner according to an embodiment of this application. The outer casing and fresh air device are omitted from the diagram.

[0018] Explanation of reference numerals in the attached figures 100-Air conditioner; 10-Indoor unit; 10a-Indoor air duct; 11-Indoor heat exchanger; 11a-Windward side; 11b-Leisure side; 12-Air duct component; 12a-Air guide channel; 121-First part; 122-Second part; 13-Sealing component; 14-Connecting component; 20-Fresh air unit; 21-Housing shell; 21a-Fresh air duct; 21b-Fresh air inlet; 21c-Fresh air outlet; 21d-Pull-out port; 211-First housing section; 212-Second housing section; 22-Fresh air fan; 23-Filter element; 24-Fresh air damper; 25-Rotating shaft; 26-Elastic element; 27-First magnetic element; 28-Second magnetic element; 30-Outdoor unit; 31-Outdoor heat exchanger; 40-Outer shell; 50-Chassis; 51-Guide rail; 60-Baffle. Detailed Implementation

[0019] In the description of the embodiments of this application, it should be noted that the terms "height direction", "up", "down", "top", "bottom", "left", "right", "front", "back", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application 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 the embodiments of this application.

[0020] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "support" should be interpreted broadly. For example, they can refer to fixed supports, detachable supports, or integral supports; they can refer to mechanical supports or electrical supports; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] This application provides an air conditioner 100. Please refer to [link / reference]. Figures 1 to 13 The air conditioner 100 includes an indoor unit 10, a fresh air unit 20, and an air duct component 12. The indoor unit 10 includes an indoor heat exchanger 11 and an indoor air duct 10a.

[0022] For example, please refer to Figure 13 The air conditioner 100 also includes an outdoor unit 30, which includes an outdoor heat exchanger 31, and the outdoor heat exchanger 31 is in heat exchange communication with the indoor heat exchanger 11.

[0023] It is understood that the type of air conditioner 100 in this application is not limited; for example, it can be a window air conditioner. The window air conditioner is an integrated air conditioner, that is, the outdoor unit 30 and the indoor unit 10 are integrated into one box, thus making the structure compact and reducing the space occupied indoors.

[0024] For example, a mounting opening is formed in the wall, a window can be disposed in the mounting opening, and the air conditioner 100 can be installed in the mounting opening. The two sides of the window are the indoor side and the outdoor side, respectively. The indoor unit 10 is located on the indoor side of the window, and the outdoor unit 30 is located on the outdoor side of the window. Of course, the air conditioner 100 can also be installed in other locations that are substantially similar to the window. For example, please refer to... Figures 1 to 3 The air conditioner 100 can be installed on a wall via the housing 40. The housing 40 may include an indoor housing and an outdoor housing. The outdoor housing is located outside the outdoor unit 30 and is mounted to the wall, while the indoor housing is located outside the indoor unit 10 and is exposed to the indoor environment.

[0025] For example, the air conditioner 100 can be a PTAC (Packaged Terminal Air Conditioner) window unit, that is, the air conditioner 100 has a fresh air function while cooling and heating, thus improving air quality.

[0026] In some embodiments, please refer to Figures 1 to 3 The air conditioner 100 includes a chassis 50, an outer casing 40, and a partition 60. The outer casing 40 is mounted on top of the chassis 50. The outdoor unit 30 and the indoor unit 10 are disposed within the space defined by the chassis 50 and the outer casing 40. The partition 60 separates the indoor unit 10 and the outdoor unit 30.

[0027] The chassis 50 is positioned at the bottom of the outdoor unit 30 and the indoor unit 10 to support them. The outer casing 40 covers the chassis 50. Thus, the indoor unit 10 and the outdoor unit 30 are located within the space defined by the chassis 50 and the outer casing 40, providing protection for them and ensuring the overall structural stability of the air conditioner 100, which facilitates its installation. The partition 60 separates the indoor unit 10 and the outdoor unit 30; that is, the indoor unit 10 is located on the side of the partition 60 facing inward, and the outdoor unit 30 is located on the side of the partition 60 facing outward.

[0028] Understandably, without a partition, the cold air drawn in by the indoor fan may leak directly from the casing to the outdoor side, or the hot air drawn in by the outdoor fan may directly enter the indoor side, causing a decrease in the cooling and heating efficiency of the air conditioner and affecting its performance.

[0029] Therefore, the partition 60 is used to isolate indoor and outdoor air, physically blocking the direct connection between the indoor air duct 10a and the outdoor air duct. This ensures that indoor air can only be drawn in by the indoor fan, exchanged heat through the indoor heat exchanger 11, and then blown back indoors; outdoor air can only be drawn in by the outdoor fan, exchanged heat through the outdoor heat exchanger 31, and then discharged outdoors. This allows the air conditioner 100 to efficiently complete the heat exchange process of indoor heat absorption and outdoor heat release (cooling) or "outdoor heat absorption and indoor heat release" (heating). Of course, the partition 60 also provides structural support and dust and water protection, reducing the likelihood of rainwater and dust directly entering the indoor side.

[0030] The partition 60 can be a sheet metal part, which is lightweight and high-strength, making it easy to mass-produce and thus ensuring the structural strength of the partition 60.

[0031] Please see Figure 4 The indoor air duct 10a is used to introduce heat exchange airflow into the indoor environment. The indoor heat exchanger 11 is installed in the indoor air duct 10a and has a windward side 11a and a leeward side 11b.

[0032] Specifically, the windward surface 11a refers to the surface of the indoor heat exchanger 11 that comes into contact with the airflow. The airflow comes into contact with the indoor heat exchanger 11 via the windward surface 11a, and after heat exchange, it leaves the indoor heat exchanger 11 via the leeward surface 11b. Thus, the indoor air duct 10a introduces the heat-exchanged airflow into the indoor environment to improve the indoor temperature.

[0033] The indoor heat exchanger 11 and the outdoor heat exchanger 31 are used as evaporators or condensers. The working principle of the air conditioner 100 is briefly described below.

[0034] In cooling mode, the outdoor heat exchanger 31 acts as a condenser, and the indoor heat exchanger 11 acts as an evaporator. The compressor draws in low-temperature, low-pressure gaseous refrigerant and compresses it into high-temperature, high-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant enters the outdoor heat exchanger 31, and the outdoor fan draws in outdoor air. The high-temperature, high-pressure refrigerant exchanges heat with the outdoor air, lowering its temperature and causing it to condense from a gaseous state into a liquid state. At the same time, it releases a large amount of heat to the outdoor air. The high-temperature liquid refrigerant passes through a throttling device and becomes a low-temperature, low-pressure liquid refrigerant, which then enters the indoor heat exchanger 11. The indoor fan draws in indoor air, and the low-temperature, low-pressure liquid refrigerant exchanges heat with the indoor air, absorbing heat from the indoor air and evaporating from a liquid state into a gaseous state. Simultaneously, it lowers the indoor air temperature, and the cooled air is blown back into the room, achieving cooling.

[0035] In heating mode, the outdoor heat exchanger 31 is used as an evaporator, and the indoor heat exchanger 11 is used as a condenser. The compressor compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gas. The high-temperature, high-pressure gas first enters the room and exchanges heat with the indoor heat exchanger 11. The indoor fan blows through the indoor heat exchanger 11, and the refrigerant releases heat to the indoor air and condenses into a liquid, thus raising the temperature of the indoor air. The high-temperature liquid refrigerant passes through a throttling device and becomes a low-temperature liquid. The low-temperature liquid refrigerant enters the outdoor heat exchanger 31, where it absorbs heat from the outdoor air and evaporates into a gas. In this way, heating is achieved.

[0036] The fresh air device 20 includes a housing 21, which has a fresh air duct 21a, a fresh air inlet 21b, and a fresh air outlet 21c. The fresh air inlet 21b is connected to the outdoor environment, and the fresh air duct 21a is connected to the fresh air inlet 21b and the fresh air outlet 21c.

[0037] The fresh air unit 20 is used to introduce outdoor fresh air through the fresh air inlet 21b, and the fresh air duct 21a is used to transport the fresh air flow so that the fresh air flow is output towards the indoor side through the fresh air outlet 21c. In this way, the phenomenon of air quality decline caused by closed doors and windows when the air conditioner 100 is cooling or heating, which affects the user's comfort, is reduced.

[0038] For example, please refer to Figure 1The fresh air device 20 is installed through the partition 60. One part of the fresh air device 20 (fresh air outlet 21c) is located on the indoor side, and the other part (fresh air inlet 21b) is located on the outdoor side. This facilitates the intake of fresh air from the outdoor side and its introduction into the indoor side to achieve ventilation.

[0039] It is understandable that the fresh air inlet 21b can be directly connected to the outdoor environment, or it can be connected to the outdoor environment through a pipeline; there are no restrictions on this.

[0040] Please see Figures 2 to 4 The air duct 12 connects the housing 21 and the indoor heat exchanger 11. The air duct 12 has an air guide channel 12a, one end of which is connected to the fresh air outlet 21c and the other end is connected to the windward surface 11a.

[0041] Specifically, one end of the duct component 12 is connected to the fresh air device 20, and the other end is connected to the indoor heat exchanger 11. Thus, the air guide channel 12a of the duct component 12 connects the fresh air outlet 21c and the windward side 11a of the indoor heat exchanger 11. The fresh air output from the fresh air outlet 21c is guided to the indoor heat exchanger 11. After exchanging heat with the indoor heat exchanger 11, the fresh air flows out through the leeward side 11b of the indoor heat exchanger 11. Thus, the heat exchange airflow introduced into the indoor environment by the indoor duct 10a includes not only the indoor heat exchange airflow but also the heat-exchanged fresh airflow. In this way, the fresh airflow enters the indoor environment after heat exchange, reducing the temperature difference between the fresh airflow and the indoor air and improving the comfort of the indoor environment.

[0042] It should be noted that the air duct component 12 is a concrete, tangible structure that connects the housing 21 and the indoor heat exchanger 11. It provides a relatively enclosed airflow channel 12a, guiding all or almost all of the fresh air output from the fresh air outlet 21c into the windward side 11a of the indoor heat exchanger 11. This reduces fresh air airflow loss and the likelihood of airflow overflow, ensuring a defined and stable flow path for the fresh air and improving the reliability of fresh air circulation. Of course, the fresh air after heat exchange can directly enter the indoor environment through the indoor air duct 10a, eliminating the need for additional external fresh air outlets leading to the indoor environment.

[0043] In related technologies, fresh air devices are equipped with independent heat exchange modules. Before the fresh air is blown out, the heat exchange modules process the fresh air. However, this method increases the manufacturing cost of the air conditioner. In addition, the additional heat exchange modules are required, which affects the layout of the indoor and outdoor heat exchangers and increases the overall size of the air conditioner.

[0044] The air conditioner 100 provided in this application embodiment has an air duct component 12 that directs the fresh air from the fresh air device 20 to the windward side 11a of the indoor heat exchanger 11. This allows the fresh air to be heated before flowing from the indoor air duct 10a into the indoor environment, reducing the temperature difference between the fresh air and the indoor air and increasing user comfort. As a result, the fresh air device 20 does not need to be equipped with an additional heat exchange module, resulting in low manufacturing costs and reduced space occupation by the fresh air device 20, making the overall size of the air conditioner 100 more reasonable. Furthermore, the air duct component 12 also ensures that the fresh air flowing out from the fresh air outlet 21c has a stable and reliable flow path, reducing the chance of fresh air loss and airflow overflow. It also facilitates adaptation to different installation positions of the fresh air device 20 and the indoor heat exchanger 11, accurately directing the fresh air to the indoor heat exchanger 11.

[0045] The connection method between the air duct component 12 and the housing 21 and the indoor heat exchanger 11 is not limited. It can be a detachable connection, such as a snap-fit ​​or threaded connection, or a non-detachable connection, such as welding.

[0046] In some embodiments, please refer to Figure 4 The air conditioner 100 includes a seal 13, which is disposed at the connection between the air duct 12 and the indoor heat exchanger 11.

[0047] The air duct component 12 can be directly pressed onto the seal 13 to achieve a sealed fit with the indoor heat exchanger 11.

[0048] The material of the seal 13 is not limited. For example, the seal 13 can be silicone, rubber, sponge, felt, etc.

[0049] In this embodiment, a sealing element 13 is provided at the connection between the air duct component 12 and the indoor heat exchanger 11. Through the deformation of the sealing element 13, the connection between the air duct component 12 and the indoor heat exchanger 11 is less prone to leakage, thereby improving the sealing performance of the joint and reducing the probability of fresh air leakage from the joint between the air duct component 12 and the indoor heat exchanger 11, ensuring fresh air efficiency and providing a better user experience.

[0050] For example, the air duct component 12 is a rigid structure to have sufficient strength to withstand the airflow. The sealing component 13 can further seal the connection between the air duct component 12 and the indoor heat exchanger 11, effectively reducing the probability of fresh air overflowing from the connection between the air duct component 12 and the indoor heat exchanger 11, making the flow of fresh air more stable.

[0051] Of course, in some embodiments, a sealing structure may also be provided at the joint between the air duct component 12 and the housing 21 to further reduce the chance of fresh air leakage.

[0052] The specific structure of the air duct component 12 is not limited.

[0053] In some embodiments, please refer to Figure 3 and Figure 4 The air duct component 12 includes a first part 121 and a second part 122 that are connected to each other. The first part 121 is located on one side of the indoor heat exchanger 11 along the first direction and is connected to the housing 21 along the second direction. The second part 122 is located on one side of the indoor heat exchanger 11 along the second direction and is connected to the indoor heat exchanger 11 along the second direction. The first direction and the second direction are perpendicular to each other with respect to the height direction of the air conditioner 100.

[0054] The spaces within the first part 121 and the second part 122 together define the air guide channel 12a. The first part 121 is connected to the fresh air outlet 21c, and the second part 122 is connected to the windward surface 11a of the indoor heat exchanger 11. Specifically, with the indoor heat exchanger 11 as the boundary, the first part 121 and the second part 122 are located on different sides of the indoor heat exchanger 11. The first part 121 is located on the side of the indoor heat exchanger 11 along the first direction, and the second part 122 is located on the side of the indoor heat exchanger 11 along the second direction. Thus, the fresh air flow needs to be reversed during the process of flowing through the air duct 12 to the windward surface 11a of the indoor heat exchanger 11. Through the design of the first part 121 and the second part 122, it is possible to adapt to the different orientation settings of the fresh air outlet 21c and the windward surface 11a, so as to achieve stable introduction of fresh air flow.

[0055] The first part 121 is connected to the housing 21 along the second direction, and the second part 122 is connected to the indoor heat exchanger 11 along the second direction. In this way, the housing 21 along the second direction can not exceed the windward surface 11a of the indoor heat exchanger 11. The size of the fresh air device 20 is small, which facilitates the air intake of the indoor heat exchanger 11. The extension dimensions of the first part 121 and the second part 122 can be small, that is, the fresh air flow path is shortened.

[0056] The first direction and the second direction can be any direction. For example, the first direction can be the left and right direction, and the second direction can be the front and back direction. Here, the direction towards the indoor side is the front side, and the direction towards the outdoor side is the back side.

[0057] In this embodiment, the design of the first part 121 and the second part 122 can make full use of the limited space within the air conditioner 100 and adapt to the layout of the fresh air device 20 and the indoor heat exchanger 11, so as to effectively guide the fresh air flow to the windward side 11a without increasing the overall size of the air conditioner 100. Of course, it can also weaken the intensity of the fresh air flow, reduce noise, and reduce the impact on the indoor heat exchanger 11.

[0058] It is understandable that the first part 121 and the second part 122 can be manufactured separately, that is, the air duct component 12 is a split structure, or the first part 121 and the second part 122 can be integrally formed, that is, the air duct component 12 is an integral structure.

[0059] For example, in some embodiments, the air duct component 12 is a one-piece structure. That is, the air duct component 12 is manufactured in one piece, which improves production efficiency, reduces assembly processes, and leaves no splicing or installation marks on the air duct component 12. This reduces the chance of fresh air leakage from splicing or installation points and ensures the stability of fresh air flow.

[0060] The material of the air duct component 12 is not limited. For example, the air duct component 12 can be made of stainless steel, aluminum alloy or other metal materials, without any limitation.

[0061] In some embodiments, please refer to Figures 4 to 7 The fresh air device 20 includes a fresh air fan 22 and a filter element 23. The fresh air fan 22 and the filter element 23 are located in the fresh air duct 21a. The filter element 23 is located upstream of the fresh air fan 22 along the airflow direction and is used to filter the airflow flowing through the fresh air duct 21a. The filter element 23 and the fresh air fan 22 are arranged along the height direction of the air conditioner 100.

[0062] Specifically, the fresh air fan 22 is used to provide airflow so that the outdoor fresh air can enter the fresh air duct 21a through the fresh air inlet 21b and flow to the air duct component 12 through the fresh air outlet 21c.

[0063] Understandably, the airflow towards the duct 12 can be directed to the windward side 11a under the negative pressure of the indoor fan.

[0064] The filter element 23 is located upstream of the fresh air fan 22 along the airflow direction. That is to say, when the fresh air flows towards the fresh air outlet 21c under the action of the air force of the fresh air fan 22, it first flows through the filter element 23 and then flows to the fresh air fan 22. In this way, the fresh air can filter out impurities before flowing to the fresh air fan 22, improve the cleanliness of the fresh air flowing into the indoor environment, increase the user's comfort, and of course, also increase the cleanliness of the fresh air fan 22.

[0065] The filter element 23 and the fresh air fan 22 are arranged along the height direction, which can reduce the resistance of the fresh air flow as it passes through the filter element 23 and the fresh air fan 22, and increase the fresh air flow efficiency. Under the action of the fresh air fan 22, the fresh air flow can pass through the filter element 23 and flow to the fresh air outlet 21c more quickly.

[0066] For example, please refer to Figure 7 The filter element 23 is positioned above the fresh air fan 22.

[0067] The specific form of the fresh air fan 22 is not limited. The fresh air fan 22 can be a centrifugal fan, axial fan, cross-flow fan, or other types of fan. The air conditioner 100 can control the operation of the fresh air function by controlling the operation of the fresh air fan 22. When the fresh air fan 22 is on, fresh air is introduced into the fresh air duct 21a; when the fresh air fan 22 is off, the fresh air function stops. The air conditioner 100 can adjust the fresh air volume by adjusting the speed of the fresh air fan 22.

[0068] The specific form of the filter element 23 is not limited. Exemplarily, in some embodiments, the filter element 23 is in the form of a filter screen. In other embodiments, the filter element 23 is a combination of a housing and a filter screen, with the filter screen disposed within the housing.

[0069] In some embodiments, please refer to Figure 7 The housing 21 has a pull-out port 21d on the side near the windward side 11a, and the filter element 23 can be pulled out and engaged with the housing 21 through the pull-out port 21d.

[0070] In this embodiment, the filter element 23 and the housing 21 are engaged by a pull-out opening 21d. When filtration is required, the filter element 23 is pushed into the housing 21 through the pull-out opening 21d and the pull-out opening 21d is closed. When the filter element 23 needs to be cleaned or replaced, it can be taken out through the pull-out opening 21d. In this way, the filter element 23 is easy to put in and take out, and the filter element 23 can be pulled out directly from the indoor side, reducing the problem of the filter element being placed on the outdoor side in related technologies, which makes maintenance and replacement inconvenient.

[0071] For example, please refer to Figure 7 The pull-out opening 21d is positioned opposite to the fresh air inlet 21b, and the pull-out opening 21d is located on the front side of the housing 21 and above the fresh air outlet 21c.

[0072] For example, the filter element 23 is formed with a handle structure located outside the housing 21 to facilitate the user to pull out the filter element 23.

[0073] The specific structure of the shell 21 is not limited.

[0074] In some embodiments, please refer to Figures 5 to 7 The housing 21 includes a first housing portion 211 and a second housing portion 212. The first housing portion 211 is connected above the second housing portion 212. The second housing portion 212 connects the first housing portion 211 and the air duct component 12. The spaces inside the first housing portion 211 and the second housing portion 212 together define at least a portion of the fresh air duct 21a. The fresh air inlet 21b and the filter 23 are disposed in the first housing portion 211, and the fresh air outlet 21c and the fresh air fan 22 are disposed in the second housing portion 212.

[0075] The first housing portion 211 is connected to the lower part of the second housing portion 212, which can increase the layout compactness and reduce the layout size of the air conditioner 100 in the first and second directions.

[0076] For example, the first housing 211 and the second housing 212 can be a separate structure, which facilitates the arrangement of the fresh air fan 22 in the first housing 211 and the filter element 23 in the second housing 212, reducing the difficulty of installation.

[0077] For example, please refer to Figure 7 The pull-out opening 21d is formed on the front side of the first shell 211.

[0078] In some embodiments, the filter element 23 covers the fresh air inlet 21b. In this way, as soon as the outdoor fresh air enters the fresh air inlet 21b, it can be filtered by the filter element 23 to intercept dust, particulate matter, etc., ensuring the cleanliness of the fresh air entering the indoor environment.

[0079] In other embodiments, please refer to Figure 7 The filter element 23 covers the connection between the first shell portion 211 and the second shell portion 212. That is, the filter element 23 is disposed in the joint area of ​​the first shell portion 211 and the second shell portion 212. In this way, the fresh air flow entering the first shell portion 211 through the fresh air inlet 21b can be filtered before flowing into the second shell portion 212. In addition, the filter element 23 can also play a certain buffering and protective role, and increase the sealing performance of the joint between the first shell portion 211 and the second shell portion 212.

[0080] It should be noted that the above-mentioned coverage can be frontal, vertical, or angled, as long as it can achieve the purpose of blocking.

[0081] In some embodiments, the first housing portion 211 is open along the second direction and on the side away from the indoor heat exchanger 11 to form a fresh air inlet 21b, and the second housing portion 212 is open along the second direction and on the side facing the indoor heat exchanger 11 to form a fresh air outlet 21c.

[0082] A first opening is formed at the bottom of the first shell portion 211, and a second opening is formed at the top of the second shell portion 212. The first opening and the second opening are connected, and the filter element 23 covers the first opening.

[0083] In this embodiment, the first shell portion 211 and the second shell portion 212 are connected internally through the connection of the first opening and the second opening. This allows fresh air to enter the first shell portion 211 through the fresh air inlet 21b, exit through the first opening, enter the second shell portion 212 through the second opening, and then exit through the fresh air outlet 21c into the air duct component 12. The filter component 23 covers the first opening, filtering the fresh air entering the first shell portion 211. Simultaneously, it forms a buffer protection at the connection point of the first and second openings, increasing the sealing performance at both openings.

[0084] The connection method between the filter element 23 and the first housing 211 is not limited. For example, it can be a detachable connection, which facilitates the cleaning and replacement of the filter element 23.

[0085] In some embodiments, please refer to Figure 7 Along the second direction toward the direction of the indoor heat exchanger 11, the filter element 23 extends obliquely upward.

[0086] In this embodiment, the filter element 23 is covered with an inclined cover. In this way, while filtering impurities in the fresh air flow, the size of the filter element 23 can be increased within a limited space, increasing the contact area between the filter element 23 and the fresh air flow, thereby improving filtration efficiency. Of course, the inclined insertion design also facilitates disassembly and assembly.

[0087] In some embodiments, please refer to Figures 9 to 11 The fresh air device 20 includes a fresh air door 24, one end of which is rotatably connected to the housing 21, and the other end is a free end, so as to rotatably open or close the fresh air outlet 21c.

[0088] When the fresh air function is turned on, the fresh air door 24 needs to be opened so that the fresh air can flow through the air duct 12 into the room. When the fresh air function is turned off, the fresh air door 24 needs to be closed to prevent indoor and outdoor air from circulating through the fresh air duct 21a and affecting the indoor cooling / heating effect, and also to reduce the introduction of impurities.

[0089] The fresh air damper 24 can open the fresh air outlet 21c under the impact of airflow when the fresh air fan 22 is turned on, and close the fresh air outlet 21c under the action of gravity when the fresh air fan 22 is turned off.

[0090] In other words, in this embodiment, after the fresh air fan 22 is turned on, the fresh air damper 24 is rotated by the impact of the fresh air flow to open the fresh air outlet 21c. Then, under the continuous impact of the airflow, it remains in the open position. When the fresh air fan 22 is turned off, the fresh air damper 24 loses its driving force and returns to the closed state under its own gravity, closing the fresh air outlet 21c. Thus, there is no need to configure a separate control motor, the structure is simple, and the control is convenient.

[0091] It should be noted that the fresh air damper 24 is rotatably connected to the housing 21. The rotation axis of the fresh air damper 24 can be along the height direction or along the first direction. There is no restriction here, as long as it can be opened under the impact of airflow and closed under the action of gravity.

[0092] In some embodiments, please refer to Figure 11 The fresh air device 20 includes a rotating shaft 25 and an elastic element 26. The fresh air damper 24 is rotatably connected to the housing 21 via the rotating shaft 25. One end of the elastic element 26 is connected to the rotating shaft 25, and the other end is connected to the fresh air damper 24. The elastic element 26 is used at least to limit the rotation angle of the fresh air damper 24 when the fresh air outlet 21c is opened.

[0093] It is understandable that when the fresh air fan 22 is turned on, the airflow force of the fresh air is greater than the elastic force of the elastic element 26 and the gravity of the fresh air damper 24, thus enabling the fresh air damper 24 to be opened.

[0094] In this embodiment, the elastic element 26 can limit the rotation angle of the fresh air door 24 when the fresh air outlet 21c is opened, so as to reduce the situation where the fresh air door 24 cannot be reset due to excessive rotation angle when it is opened, and reduce the probability of the fresh air door 24 getting stuck. Of course, the elastic element 26 can also apply a reset force to the fresh air door 24 when the fresh air fan 22 is turned off, so that the fresh air door 24 returns to the closed state.

[0095] In some embodiments, the elastic element 26 is a torsion spring. When the fresh air fan 22 is turned on, the torsion spring is subjected to torque and undergoes bending deformation, storing elastic potential energy. When the fresh air fan 22 is turned off, the airflow is removed, and the torsion spring can automatically return to its original position by relying on the stored elastic potential energy. Thus, the structure is simple, the manufacturing cost is low, and it is easy to realize the reliable opening and closing of the fresh air damper 24.

[0096] In some embodiments, the rotation angle of the fresh air damper 24 is 0° to 90°. When the rotation angle of the fresh air damper 24 is 0°, the fresh air damper 24 is in the closed state. When the fresh air damper 24 is open, the rotation angle of the fresh air damper 24 does not exceed 90°, for example, it can be 90°, 85°, 75°, 72°, 60°, etc. The rotation angle of the fresh air damper 24 is within a suitable range, so that the fresh air damper 24 will not be over-opened, making it easy to return to the closed state under the action of gravity, reducing the possibility of failure to return due to excessive rotation angle.

[0097] In some embodiments, the fresh air device 20 includes a locking structure disposed at the edge of the fresh air outlet 21c. When the fresh air door 24 opens the fresh air outlet 21c, the locking structure is separated from the fresh air door 24. When the fresh air door 24 closes the fresh air outlet 21c, the locking structure is connected to the fresh air door 24.

[0098] In this embodiment, the locking structure can lock the fresh air door 24 when the fresh air outlet 21c is closed due to gravity, so that the fresh air door 24 is reliably kept in the closed state, reducing the probability of indoor airflow and outdoor airflow. When the fresh air fan 22 is turned on, the locking structure releases the lock on the fresh air door 24 under the impact of the fresh air flow, and the fresh air door 24 will not be locked. The opening and closing reliability of the fresh air door 24 is high.

[0099] The locking structure can be used in any way with the fresh air door 24. For example, it can be a snap-fit, magnetic connection, etc., and there are no restrictions here.

[0100] In some embodiments, please refer to Figure 11 The locking structure includes a first magnetic element 27, and the fresh air door 24 is provided with a second magnetic element 28. The first magnetic element 27 and the second magnetic element 28 can be separated and magnetically attracted together.

[0101] In this embodiment, the fresh air door 24 can be effectively closed by the magnetic attraction between the first magnetic element 27 and the second magnetic element 28. The structure is simple and the connection method is simple and convenient.

[0102] The first magnetic element 27 and the second magnetic element 28 can be magnets, which can be permanent magnets or electromagnets, without limitation. Of course, the first magnetic element 27 can also be a magnet, and the second magnetic element 28 can be a magnetic material. For example, the fresh air damper 24 is formed of iron material, that is, the fresh air damper 24 is formed entirely of the second magnetic element 28. Alternatively, the fresh air damper 24 is not magnetic, and the second magnetic element 28 is an iron skin disposed on the fresh air damper 24.

[0103] In some embodiments, please refer to Figure 12 The chassis 50 is provided with a guide rail 51, and the bottom of the housing 21 slides in cooperation with the guide rail 51. The air conditioner 100 includes a connector 14, which passes through and connects the guide rail 51 and the housing 21.

[0104] In this embodiment, after the fresh air device 20 is assembled, the fresh air device 20 can be slidably engaged with the guide rail 51 through the housing 21 as a whole. When the fresh air device 20 slides into place, the guide rail 51 and the housing 21 are connected by the connector 14 to fix the fresh air device 20 on the chassis 50. In this way, the installation stability of the fresh air device 20 is high, and it is also easy to replace and disassemble.

[0105] The specific construction of the connector 14 is not limited; for example, it can be a screw, or a combination of a bolt and a nut. The number of connectors 14 is also not limited; there can be one or more, and no limitation is made here.

[0106] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine different embodiments or examples described in this application, as well as features of different embodiments or examples.

[0107] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An air conditioner, characterized in that, include: An indoor unit includes an indoor heat exchanger and an indoor air duct. The indoor air duct is used to introduce heat exchange airflow into the indoor environment. The indoor heat exchanger is disposed in the indoor air duct and has a windward side and a leeward side. A fresh air device includes a housing, the housing having a fresh air duct, a fresh air inlet, and a fresh air outlet, the fresh air inlet being connected to the outdoor environment, and the fresh air duct connecting the fresh air inlet and the fresh air outlet; A duct component connects the housing and the indoor heat exchanger. The duct component has an air guide channel, one end of which is connected to the fresh air outlet, and the other end is connected to the windward side.

2. The air conditioner according to claim 1, characterized in that, The air duct component includes a first part and a second part that are connected to each other. The first part is located on one side of the indoor heat exchanger along a first direction and is connected to the housing along a second direction. The second part is located on one side of the indoor heat exchanger along a second direction and is connected to the indoor heat exchanger along a second direction. The first direction and the second direction are perpendicular to each other with the height direction of the air conditioner. And / or, the air duct component is an integral structure.

3. The air conditioner according to claim 1, characterized in that, The fresh air device includes a fresh air fan and a filter element. The fresh air fan and the filter element are located in the fresh air duct. The filter element is disposed upstream of the fresh air fan along the airflow direction and is used to filter the airflow flowing through the fresh air duct. The filter element and the fresh air fan are arranged along the height direction of the air conditioner.

4. The air conditioner according to claim 3, characterized in that, The housing includes a first housing portion and a second housing portion. The first housing portion is connected above the second housing portion, and the second housing portion is connected to the first housing portion and the air duct component. The spaces within the first housing portion and the second housing portion together define at least a portion of the fresh air channel. The fresh air inlet and the filter are disposed in the first housing portion, and the fresh air outlet and the fresh air fan are disposed in the second housing portion. The filter element covers the fresh air inlet; or, the filter element covers the connection between the first shell and the second shell.

5. The air conditioner according to claim 4, characterized in that, The first shell portion is open along the second direction and on the side away from the indoor heat exchanger to form the fresh air inlet, and the second shell portion is open along the second direction and on the side facing the indoor heat exchanger to form the fresh air outlet; The bottom of the first shell portion has a first opening, and the top of the second shell portion has a second opening. The first opening and the second opening are connected, and the filter element covers the first opening. And / or, along the second direction toward the indoor heat exchanger, the filter element extends obliquely upward; wherein the second direction is perpendicular to the height direction.

6. The air conditioner according to claim 1, characterized in that, The fresh air device includes a fresh air door and a fresh air fan. The fresh air fan is located in the fresh air duct. One end of the fresh air door is rotatably connected to the housing, and the other end is a free end, so as to rotatably open or close the fresh air outlet. The fresh air damper can open the fresh air outlet under the impact of airflow when the fresh air fan is turned on, and close the fresh air outlet under the action of gravity when the fresh air fan is turned off.

7. The air conditioner according to claim 6, characterized in that, The fresh air device includes a rotating shaft and an elastic element. The fresh air door is rotatably connected to the housing via the rotating shaft. One end of the elastic element is connected to the rotating shaft, and the other end is connected to the fresh air door. The elastic element is used at least to limit the rotation angle of the fresh air door when the fresh air door opens the fresh air outlet.

8. The air conditioner according to claim 7, characterized in that, The elastic element is a torsion spring; And / or, the rotation angle of the fresh air damper is 0°~90°.

9. The air conditioner according to claim 7, characterized in that, The fresh air device includes a locking structure disposed at the edge of the fresh air outlet. When the fresh air door opens the fresh air outlet, the locking structure separates from the fresh air door. When the fresh air door closes the fresh air outlet, the locking structure connects to the fresh air door.

10. The air conditioner according to claim 9, characterized in that, The locking structure includes a first magnetic component, and the fresh air door is provided with a second magnetic component. The first magnetic component and the second magnetic component can be separated and magnetically attracted together.

11. The air conditioner according to any one of claims 1-10, characterized in that, The air conditioner includes an outdoor unit, a chassis, a casing, and a partition. The outdoor unit includes an outdoor heat exchanger, and the indoor heat exchanger is in heat exchange communication with the outdoor heat exchanger. The casing is placed above the chassis. The outdoor unit and the indoor unit are disposed within the space defined by the chassis and the casing. The partition separates the indoor unit and the outdoor unit, and the fresh air device passes through the partition.

12. The air conditioner according to claim 11, characterized in that, The chassis is provided with a guide rail, and the bottom of the housing slides in conjunction with the guide rail. The air conditioner includes a connector that passes through and connects the guide rail and the housing.

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