Wall-mounted air conditioner indoor unit and air conditioner

Abstract

The utility model provides a wall-mounted air conditioner indoor unit and an air conditioner. The wall-mounted air conditioner indoor unit comprises a machine body and a fresh air device. An air inlet is formed in the upper side of the machine body, and the fresh air device is arranged in the machine body and used for sucking outdoor environment air and blowing airflow towards the air inlet. The fresh air device comprises a magnetic suspension motor used for providing power for forming airflow for the fresh air device. The fresh air device uses the magnetic suspension motor to provide power for forming airflow, noise is low, and the air supply amount is large.

Description

Technical Field

[0001] The utility model relates to the field of household appliances, in particular to a wall-mounted air conditioner indoor unit and an air conditioner. Background Art

[0002] Many users like to open windows for ventilation to bring in fresh air to the room, but the cooling and heating effects of the air conditioner will deteriorate when opening windows for ventilation, and the cooling or heat provided by the air conditioner will be easily lost. In addition, the air quality in some areas is poor, and there are many dust and impurities in the outdoor air, which is not suitable for opening windows for ventilation. In order to better provide services to users, some air conditioners have added a fresh air function, so that fresh air from the outside can be provided to the room even when the doors and windows are closed, without affecting the cooling and heating effects of the air conditioner itself.

[0003] However, the fresh air function requires an additional fresh air fan to be installed in the air conditioner. The existing fresh air fan has a small air supply volume and a large noise, and cannot well meet the user's usage needs. Utility Model Content

[0004] Based on the above background, one aspect of the present invention is to provide an indoor unit of an air conditioner with large air supply volume and low noise.

[0005] Another object of the present invention is to provide an air conditioner indoor unit and an air conditioner that can solve the above problems.

[0006] In particular, according to the first aspect of the utility model, the utility model provides a wall-mounted air conditioner indoor unit, the wall-mounted air conditioner indoor unit comprises a body and a fresh air device. An air inlet is provided on the upper side of the body, and the fresh air device is arranged in the body, for sucking in outdoor ambient air and blowing out airflow in the direction of the air inlet. The fresh air device comprises a magnetic suspension motor, for providing power for the fresh air device to form airflow.

[0007] Optionally, the fresh air device further includes a housing and a centrifugal impeller. A fresh air duct is formed inside the housing, and a fresh air outlet and a fresh air inlet are provided on the housing. The centrifugal impeller is arranged inside the housing, and is configured to suck air in from the axial direction and blow it out from the radial direction when rotating, and form an airflow from the fresh air inlet to the fresh air outlet in the fresh air duct. The magnetic levitation motor is arranged outside the housing, and its rotating shaft passes through the housing and is connected to the centrifugal impeller, so as to provide rotational power to the centrifugal impeller.

[0008] Optionally, the fresh air device is arranged on one lateral side in the fuselage, and the magnetic levitation motor is away from the lateral side in the fuselage relative to the shell.

[0009] Optionally, the indoor unit of the wall-mounted air conditioner further includes an evaporator, which is disposed inside the air conditioner body and spaced apart from the air inlet, and the fresh air device is configured to blow airflow between the air inlet and the evaporator.

[0010] Optionally, at least a portion of the magnetic levitation motor is located on one side of the evaporator in the height direction and is spaced apart from the evaporator.

[0011] Optionally, the indoor unit of the wall-mounted air conditioner further includes a dust filter, which is arranged at the air inlet, and the fresh air device is configured to blow air flow between the dust filter and the evaporator.

[0012] Optionally, the fresh air device further includes a filter module, which is disposed in the fresh air duct between the centrifugal impeller and the fresh air outlet, and is used for filtering the air flow passing therethrough.

[0013] Optionally, an opening is formed on the front side of the housing, and the filter module is drawably arranged at the opening.

[0014] Optionally, the fresh air device further includes an air inlet elbow, which is rotatably connected to the fresh air inlet.

[0015] According to another aspect of the utility model, the utility model further provides an air conditioner, which includes any one of the above-mentioned wall-mounted air conditioner indoor units.

[0016] The utility model provides a fresh air device in the body of the indoor unit of the wall-mounted air conditioner, which inhales outdoor ambient air and blows out airflow toward the air inlet of the indoor unit of the wall-mounted air conditioner. The fresh air device uses a magnetic suspension motor to provide power for forming airflow, which not only has low noise but also has a large air supply volume.

[0017] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0019] Figure 1 is a schematic diagram of a wall-mounted air conditioner indoor unit according to an embodiment of the utility model;

[0020] Figure 2 It is a partial schematic diagram of a wall-mounted air conditioner indoor unit according to one embodiment of the utility model;

[0021] Figure 3 It is a schematic block diagram of an air conditioner according to an embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0023] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the present application and are not intended to limit the scope of protection of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0024] Secondly, it should be noted that in the description of the present application, terms such as "inside", "outside", "upper" and "lower" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example disclosed in the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0026] Figure 1 is a schematic diagram of a wall-mounted air conditioner indoor unit 20 according to an embodiment of the utility model; Figure 2 It is a partial schematic diagram of a wall-mounted air conditioner indoor unit 20 according to an embodiment of the utility model.

[0027] contrast Figure 1 and Figure 2 It can be seen that Figure 2 yes Figure 1 The partial cross-sectional view of the lateral side (left side) of the wall-mounted air conditioner indoor unit 20 shown in FIG. Figure 2 As shown, the indoor unit 20 of the wall-mounted air conditioner includes a body 22 and a fresh air device 30. An air inlet is provided on the upper side of the body 22, and the fresh air device 30 is arranged in the body 22 for sucking in outdoor ambient air and blowing out airflow in the direction of the air inlet. The fresh air device 30 includes a magnetic suspension motor 32 for providing power for the fresh air device 30 to form airflow.

[0028] Figure 2The arrows indicate the direction of airflow in the fresh air device 30 and at the air inlet. When the wall-mounted air conditioner indoor unit 20 works normally, the wall-mounted air conditioner indoor unit 20 will suck air inward from the air inlet, and the fresh air device 30 will also blow air toward the air inlet. The outdoor fresh air blown by the fresh air device 30 and the indoor air flow sucked from the air inlet by the wall-mounted air conditioner indoor unit 20 are mixed and then flow into the evaporator 24. Therefore, the outdoor fresh air has been cooled (or heated) by the evaporator 24 when it is blown into the room through the wall-mounted air conditioner indoor unit 20, and the temperature of the air flow is more comfortable.

[0029] In existing wall-mounted air conditioner indoor units equipped with fresh air devices, for various reasons such as cost saving and reducing the size of the fresh air device, the fresh air device is generally equipped with a small motor installed at the axis of the centrifugal impeller, resulting in a small air supply volume of the fresh air device, which is difficult to replace the original window ventilation needs of users. If such a motor is operated at high power, there will be problems such as severe heat accumulation and increased noise.

[0030] In order to overcome the above problems, the wall-mounted air conditioner indoor unit 20 of the utility model is specially provided with a magnetic suspension motor 32 for the fresh air device 30. The magnetic suspension motor 32 generally includes a magnetic suspension bearing, a permanent magnet synchronous motor and a frequency converter. The frequency converter is used for speed regulation. The magnetic suspension motor 32 uses controllable electromagnetic force to make the magnetic suspension bearing rotating in the permanent magnet synchronous motor realize non-contact and wear-free suspension support. The magnetic suspension bearing is directly connected to the impeller, and the transmission is zero-loss, thereby achieving the effects of no wear inside the motor, low noise, and no need for lubrication.

[0031] At the same time, since the magnetic suspension bearing does not contact and rub inside the motor, the heat generated by the magnetic suspension motor 32 is also small and the power provided is strong. Driven by the magnetic suspension motor 32, the fresh air device 30 can provide a larger air supply volume.

[0032] The specific structure and principle of the magnetic levitation motor 32 are well known to those skilled in the art, and therefore will not be described in detail here.

[0033] In some optional embodiments, the fresh air device 30 further includes a housing 34 and a centrifugal impeller 36. A fresh air duct is formed inside the housing 34, and a fresh air outlet and a fresh air inlet are provided on the housing 34. The centrifugal impeller 36 is disposed in the housing 34, and is configured to suck air from the axial direction and blow it out from the radial direction when rotating, and form an airflow from the fresh air inlet to the fresh air outlet in the fresh air duct. The magnetic levitation motor 32 is disposed outside the housing 34, and its rotating shaft passes through the housing 34 and is connected to the centrifugal impeller 36, so as to provide the centrifugal impeller 36 with power for rotation.

[0034] The housing 34, the centrifugal impeller 36 and the magnetic suspension motor 32 of the fresh air device 30 together form a centrifugal fan, and the magnetic suspension motor 32 is connected to the centrifugal impeller 36 through a magnetic suspension bearing, that is, a rotating shaft, thereby driving the centrifugal impeller 36 located inside the air conditioner to rotate. According to the size of the indoor unit 20 of the wall-mounted air conditioner and the demand for fresh air supply, the size and model of the magnetic suspension motor 32 can be flexibly selected.

[0035] Considering the shape of the wall-mounted air conditioner indoor unit 20, in some optional embodiments, the fresh air device 30 is arranged on one lateral side of the fuselage 22, and the magnetic suspension motor 32 is away from the lateral side of the fuselage 22 relative to the housing 34. Figure 1 and Figure 2 In the wall-mounted air conditioner indoor unit 20 shown, the fresh air device 30 is arranged on the left side of the body 22, and the magnetic suspension motor 32 is arranged on the right side relative to the housing 34, so as to be away from the left side of the body 22. Corresponding to the setting position of the magnetic suspension motor 32, the air inlet side of the centrifugal impeller 36 is located on the left side and close to the left side of the body 22.

[0036] Meanwhile, the wall-mounted air conditioner indoor unit 20 generally further includes an evaporator 24, which is disposed in the body 22 and spaced apart from the air inlet. The fresh air device 30 is configured to blow air between the air inlet and the evaporator 24, so that the fresh air flow can be mixed with the air flow sucked from the air inlet of the wall-mounted air conditioner indoor unit 20 and then flow through the evaporator 24. Even if the indoor and outdoor temperature difference is large, the temperature of the air flow mixed with the outdoor fresh air blown out by the wall-mounted air conditioner indoor unit 20 can be relatively suitable.

[0037] On this basis, in some optional embodiments, at least part of the magnetic suspension motor 32 is located on one side of the evaporator 24 in the height direction and is spaced from the evaporator 24. Since the magnetic suspension motor 32 can work continuously at high power with low noise, users who like the fresh air function may use the fresh air function of the wall-mounted air conditioner indoor unit 20 for a long time. In order to avoid serious heat accumulation caused by long-term operation of the motor, the magnetic suspension motor 32 is not only away from the lateral side of the body 22 relative to the housing 34 of the fresh air device 30, but also at least part of it is located on one side of the evaporator 24 in the height direction or the lower side of the evaporator 24, and is spaced from the evaporator 24. With the help of the airflow flowing between the evaporator 24 and the magnetic suspension motor 32 when the wall-mounted air conditioner indoor unit 20 is working, the heat dissipation effect of the magnetic suspension motor 32 is improved.

[0038] There may be various impurities and pollutants in the outdoor air, especially in areas with serious air pollution, users are more accustomed to using the fresh air function of the indoor unit of the air conditioner instead of opening windows for ventilation. In order to prevent the fresh air introduced from the outside from polluting the indoor air, in some optional embodiments, the fresh air device 30 further includes a filter module 38, which is arranged in the fresh air duct between the centrifugal impeller 36 and the fresh air outlet, and is used to filter the airflow passing through.

[0039] The filter module 38 is mainly used to filter some tiny dust or harmful impurities in the air. For example, the filter module 38 may include an activated carbon filter, a HEPA filter, etc., so as to absorb and filter out harmful gases, odors, PM2.5, etc. that may be present in the fresh air introduced from the outside. In some optional embodiments, the filter module 38 includes multiple filters at the same time, and the fresh air flow needs to be filtered by multiple filters in sequence.

[0040] At the same time, in some optional embodiments, in order to filter out pollutants such as flying catkins or large particles of dust, a filter net can also be provided in the shell 34 of the fresh air device 30. The filter net can be provided in the fresh air duct between the fresh air inlet and the centrifugal impeller 36, so that the fresh air flow is preliminarily filtered before contacting the centrifugal impeller 36, thereby preventing a large amount of dust from accumulating on the centrifugal impeller 36.

[0041] The filter net and the filter module 38 are respectively arranged at different positions and filter specific pollutants in a targeted manner, which not only achieves a better filtering effect, but also prevents the filter module 38 from failing too quickly.

[0042] The front side of the fuselage 22 of the wall-mounted air conditioner indoor unit 20 is usually provided with a removable front panel. Meanwhile, in some optional embodiments, the front side of the housing 34 of the fresh air device 30 is formed with an opening, and the filter module 38 is retractably arranged at the opening. The user can regularly check and replace the filter module 38, thereby preventing the filter module 38 from failing due to adsorption of too many impurities. When the fresh air device 30 is provided with a filter, the filter can also be retractably arranged for easy cleaning.

[0043] In some optional embodiments, the fresh air device 30 further includes an air inlet elbow 40, which is rotatably connected to the fresh air inlet. By rotating the air inlet elbow 40, the installation position of the fresh air duct can be flexibly adjusted during the installation of the wall-mounted air conditioner indoor unit 20, and no matter which side the fresh air duct is connected to the wall-mounted air conditioner indoor unit 20, it can be flexibly installed on the air inlet elbow 40 without bending the fresh air duct at the connection.

[0044] In some optional embodiments, the wall-mounted air conditioner indoor unit 20 itself is also provided with a dust filter at the air inlet, and the fresh air device 30 is configured to blow air between the dust filter and the evaporator 24. That is to say, the dust filter is closer to one side of the air inlet of the wall-mounted air conditioner indoor unit 20, and the fresh air flow blown by the fresh air device 30 blows between the dust filter and the evaporator 24, and does not flow through the dust filter or blow to the dust filter. The dust filter absorbs dust accumulated by filtering indoor air, and this setting prevents the dust on the dust filter from being blown from the side and detaching from the dust filter. At the same time, since the fresh air device 30 itself is provided with a filter module 38, the fresh air does not need to flow through the dust filter for additional filtration.

[0045] In an optional embodiment, the wall-mounted air conditioner indoor unit 20 includes a body 22, and an evaporator 24 and a fresh air device 30 arranged in the body 22. An air inlet is provided on the upper side of the body 22, and the air inlet faces the evaporator 24 downward. The fresh air device 30 is arranged on a lateral side in the body 22, and its fresh air outlet supplies air from a lateral end of the air inlet of the wall-mounted air conditioner indoor unit 20 to the lateral direction between the air inlet and the evaporator 24. The fresh air device 30 includes a housing 34, a centrifugal impeller 36 and a magnetic suspension motor 32, wherein the magnetic suspension motor 32 is located on a side close to the evaporator 24 relative to the lateral side of the housing 34 away from the body 22, and at least a part of the magnetic suspension motor 32 is located on a side in the height direction of the evaporator 24 and is spaced from the evaporator 24.

[0046] When the fresh air device 30 of the wall-mounted air conditioner indoor unit 20 is working, the fresh air device 30 introduces outdoor fresh air and blows out a fresh air flow from the fresh air outlet in the horizontal direction between the air inlet of the wall-mounted air conditioner indoor unit 20 and the evaporator 24. Under the impetus of the fan of the wall-mounted air conditioner indoor unit 20 itself, an air flow sucked from the air inlet direction is formed at the evaporator 24, and the air entering the wall-mounted air conditioner indoor unit 20 from the air inlet is mixed with the fresh air flow blown out by the fresh air device 30 and then flows through the evaporator 24, and finally blown into the room from the air outlet of the wall-mounted air conditioner indoor unit 20 after heat exchange.

[0047] The air supply volume of the fresh air device 30 itself and the wall-mounted air conditioner indoor unit 20 are both adjustable. Generally, the air supply volume of the fresh air device 30 is less than the air supply volume of the wall-mounted air conditioner indoor unit 20. At this time, the wall-mounted air conditioner indoor unit 20 blows out a mixed air flow formed by the fresh air flow and the indoor air. When the air supply volume of the fresh air device 30 is equal to or even greater than the air supply volume of the wall-mounted air conditioner indoor unit 20, the wall-mounted air conditioner indoor unit 20 blows out mainly the fresh air flow.

[0048] In some optional embodiments, the air inlet of the wall-mounted air conditioner indoor unit 20 can be opened and closed. When the air inlet is closed, the airflow blown out by the wall-mounted air conditioner indoor unit 20 is completely fresh air.

[0049] Figure 3 It is a schematic block diagram of an air conditioner according to an embodiment of the utility model.

[0050] refer to Figure 3 As shown, the utility model further provides an air conditioner 10, the air conditioner 10 includes a wall-mounted air conditioner indoor unit 20 of any of the above embodiments, and the air conditioner 10 also includes an air conditioner outdoor unit 60. The air conditioner outdoor unit 60 is connected to the wall-mounted air conditioner indoor unit 20 through a refrigerant pipeline, and the fresh air duct connecting the fresh air device 30 with the outdoor environment can be connected to the outdoors together with the refrigerant pipeline, or can be connected to the outdoors separately as needed.

[0051] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A wall-mounted air conditioner indoor unit, characterized in that include: A fuselage, wherein an air inlet is provided on an upper side of the fuselage; A fresh air device, arranged in the fuselage, for sucking in outdoor ambient air and blowing out air flow toward the air inlet; The fresh air device includes a magnetic levitation motor, which is used to provide power for forming airflow to the fresh air device.

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: The fresh air device also includes: A shell body, a fresh air duct is formed inside, and a fresh air outlet and a fresh air inlet are provided on the shell body; a centrifugal impeller disposed in the housing and configured to suck air in from the axial direction and blow air out from the radial direction when rotating, and form an airflow from the fresh air inlet to the fresh air outlet in the fresh air duct; The magnetic levitation motor is arranged outside the housing, and its rotating shaft passes through the housing and is connected to the centrifugal impeller, so as to provide rotational power to the centrifugal impeller.

3. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that: The fresh air device is arranged on one lateral side of the fuselage; and The magnetic levitation motor is located at a lateral side of the housing away from the interior of the fuselage.

4. The wall-mounted air conditioner indoor unit according to claim 3, characterized in that Also includes: an evaporator, disposed in the fuselage and spaced apart from the air inlet; The fresh air device is configured to blow air flow between the air inlet and the evaporator.

5. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that: At least a portion of the magnetic levitation motor is located at one side of the evaporator in a height direction and is spaced apart from the evaporator.

6. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that Also includes: A dust filter is arranged at the air inlet; The fresh air device is configured to blow air flow between the dust filter and the evaporator.

7. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that: The fresh air device also includes: A filter module is arranged in the fresh air duct between the centrifugal impeller and the fresh air outlet, and is used for filtering the air flow passing through.

8. The wall-mounted air conditioner indoor unit according to claim 7, characterized in that: An opening is formed on the front side of the housing, and the filter module is drawably arranged at the opening.

9. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that: The fresh air device also includes: The air inlet elbow is rotatably connected to the fresh air inlet.

10. An air conditioner, characterized in that It comprises a wall-mounted air conditioner indoor unit according to any one of claims 1-9.

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