Embedded air conditioner indoor unit and air conditioner with same

Abstract

The utility model provides a kind of embedded air conditioner indoor unit and air conditioner with it, the embedded air conditioner indoor unit includes: shell and fan assembly, shell includes air inlet and air outlet;Fan assembly includes first air supply device and second air supply device, and first air supply device and second air supply device are all arranged in shell;The rotation axis of the fan wheel of first air supply device and the rotation axis of the fan wheel of second air supply device coincide, and the rotation direction of the fan wheel of first air supply device and the fan wheel of second air supply device is opposite;First air supply device and second air supply device are configured to promote the air entering from air inlet to blow from air outlet.The embedded air conditioner indoor unit of the utility model generates less noise when operating.

Description

Technical Field

[0001] This utility model relates to the technical field of air conditioners, and in particular to an embedded air conditioner indoor unit and an air conditioner having the same. Background Technology

[0002] With the improvement of people's living standards, air conditioners have become indispensable electrical appliances in daily life. A ceiling-mounted air conditioner is an embedded indoor unit. It can be embedded in the ceiling and located in the center of the room to better diffuse the cooling or heating energy it generates into the indoor space. Embedded air conditioner indoor units in related technologies are equipped with a fan, which forces the airflow entering through the air inlet and blowing it into the room through the air outlet. When the fan is running, the rotation of its impeller causes the entire embedded air conditioner indoor unit to shake, generating noise and resulting in a poor user experience. Utility Model Content

[0003] In view of the above problems, the present invention is proposed to provide an embedded air conditioning indoor unit and an air conditioner having the above problems in order to overcome or at least partially solve the above problems.

[0004] One objective of this invention is to solve the problem of air conditioner indoor units shaking and generating significant noise during operation.

[0005] Specifically, this utility model proposes an embedded air conditioner indoor unit.

[0006] This utility model also proposes an air conditioner.

[0007] The embedded air conditioner indoor unit of this utility model includes: a housing, including an air inlet and an air outlet; a fan assembly, including a first air supply device and a second air supply device, both of which are disposed within the housing; the rotation axis of the impeller of the first air supply device and the rotation axis of the impeller of the second air supply device coincide, and the rotation directions of the impellers of the first air supply device and the second air supply device are opposite; both the first air supply device and the second air supply device are configured to cause air entering through the air inlet to be blown out through the air outlet.

[0008] In some embodiments, the impeller of the first air supply device is an axial flow impeller, and the impeller of the second air supply device is a centrifugal impeller, with the axial flow impeller located on the air inlet side of the centrifugal impeller.

[0009] In some embodiments, the embedded air conditioner indoor unit further includes: an air guide ring disposed within the housing; the air inlet end of the air guide ring is connected to the air inlet, the first air supply device is disposed within the air guide ring, and the second air supply device is disposed on the air outlet side of the air guide ring.

[0010] In some embodiments, the diameter of the air outlet end of the air guide ring is less than or equal to the diameter of the centrifugal impeller.

[0011] In some embodiments, the distance between the air outlet end of the air guide ring and the centrifugal impeller is 1 mm to 4 mm.

[0012] In some embodiments, the ratio of the diameter of the axial flow impeller to the diameter of the centrifugal impeller is 0.9 to 1.2.

[0013] In some embodiments, the air outlet and the air inlet are disposed on the same side wall of the housing; there are multiple air outlets, which are spaced apart along the circumferential direction of the air inlet; or, the air outlet is annular, and the air inlet is disposed inside the air outlet.

[0014] In some embodiments, the embedded air conditioner indoor unit further includes: a heat exchanger disposed in the housing; the housing having an air inlet cavity on the air inlet side of the heat exchanger and an air outlet cavity on the air outlet side of the heat exchanger; and a first air supply device and a second air supply device disposed in the air inlet cavity.

[0015] In some embodiments, the motor of the first air supply device is located on the side wall; the motor of the second air supply device is located on another side wall opposite to the side wall.

[0016] The air conditioner of this utility model includes any of the above-mentioned embedded air conditioner indoor units.

[0017] The embedded air conditioner indoor unit of this utility model embodiment includes a housing and a fan assembly, with the fan assembly disposed within the housing. The fan assembly includes a first air supply device and a second air supply device, with the rotation axes of the impellers of the first and second air supply devices coinciding, and the impellers of the first and second air supply devices rotating in opposite directions. Therefore, during operation of the fan assembly, the impellers of the first and second air supply devices achieve dynamic balance, reducing the shaking generated during operation of the embedded air conditioner indoor unit of this utility model embodiment, thus reducing noise and improving the user experience.

[0018] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0019] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0020] Figure 1 This is a schematic structural diagram of the embedded air conditioner indoor unit according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic structural diagram of the embedded air conditioner indoor unit according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic structural diagram of the embedded air conditioner indoor unit according to an embodiment of the present utility model;

[0023] Figure 4 This is a schematic structural diagram of the embedded air conditioner indoor unit according to an embodiment of the present utility model;

[0024] Figure 5 This is a schematic structural diagram of the embedded air conditioner indoor unit according to an embodiment of the present utility model;

[0025] Figure 6 This is a schematic structural diagram of an air conditioner according to an embodiment of the present utility model.

[0026] Figure label:

[0027] 10 recessed air conditioner indoor units;

[0028] Housing 100; Air inlet 101; Air outlet 102; Air inlet cavity 110; Air outlet cavity 120;

[0029] Fan assembly 200; first air supply device 210; axial flow impeller 211; motor 212; second air supply device 220; centrifugal impeller 221; motor 222;

[0030] Air guide ring 300; air inlet end 310;

[0031] Heat exchanger 400;

[0032] Air conditioner 20. Detailed Implementation

[0033] The following reference Figures 1 to 6This invention describes an embedded air conditioner indoor unit and an air conditioner having the same, according to embodiments of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0034] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "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 this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The embedded air conditioner indoor unit 10 of this utility model is described below with reference to the accompanying drawings.

[0038] like Figures 1-6 As shown, the embedded air conditioner indoor unit 10 of this utility model embodiment includes a housing 100 and a fan assembly 200.

[0039] The housing 100 includes an air inlet 101 and an air outlet 102. The fan assembly 200 includes a first air supply device 210 and a second air supply device 220, both of which are disposed within the housing 100. Both the first air supply device 210 and the second air supply device 220 are configured to cause air entering through the air inlet 101 to be blown out through the air outlet 102.

[0040] The first air supply device 210 and the second air supply device 220 can draw indoor air into the housing 100 through the air inlet 101 and then blow it into the room through the air outlet 102.

[0041] The rotation axis of the impeller of the first air supply device 210 coincides with the rotation axis of the impeller of the second air supply device 220, and the rotation directions of the impellers of the first air supply device 210 and the second air supply device 220 are opposite. For example, when the impellers of the first air supply device 210 and the second air supply device 220 are running, the impeller of the first air supply device 210 rotates clockwise, and the impeller of the second air supply device 220 rotates counterclockwise.

[0042] The embedded air conditioner indoor unit in the related technology includes a casing and a fan, with the fan installed inside the casing. When the fan is running, the rotation of its impeller generates centrifugal force, causing the entire embedded air conditioner indoor unit to shake under the action of centrifugal force, resulting in significant noise during operation.

[0043] Compared with related technologies, the embedded air conditioner indoor unit 10 of this embodiment includes a housing 100 and a fan assembly 200, with the fan assembly 200 disposed within the housing 100. The fan assembly 200 includes a first air supply device 210 and a second air supply device 220. The rotation axes of the impellers of the first and second air supply devices 210 and 220 coincide, and the rotation directions of the impellers of the first and second air supply devices 210 and 220 are opposite. Therefore, when the fan assembly 200 is running, the impellers of the first and second air supply devices 210 achieve dynamic balance, reducing the shaking generated during operation of the embedded air conditioner indoor unit 10 of this embodiment, thus reducing noise and improving the user experience.

[0044] The embedded air conditioner indoor unit 10 of this utility model embodiment can be a ceiling unit, that is, the air conditioner indoor unit of this embodiment is embedded in the ceiling of the room, so as not only hides the air conditioner indoor unit in appearance, making the home decoration more beautiful, but also makes the air supply range of the air conditioner indoor unit wider.

[0045] The embedded air conditioner indoor unit 10 of this utility model embodiment can also be other embedded air conditioner indoor units 10, such as embedded air conditioner indoor units 10 installed in walls or cabinets.

[0046] In this embodiment of the invention, the air outlet 102 and air inlet 101 of the embedded air conditioner indoor unit 10 are located on the same side wall of the housing 100. For example... Figure 1 and Figure 2 As shown, the embedded air conditioner indoor unit 10 of this utility model embodiment is a ceiling unit. An air outlet 102 and an air inlet 101 are provided on the bottom wall of the embedded air conditioner indoor unit 10 so that indoor air enters the air inlet 101 upward and blows out of the air outlet 102 downward.

[0047] In some embodiments, such as Figures 1-5 As shown, the impeller of the first air supply device 210 is an axial flow impeller 211, and the impeller of the second air supply device 220 is a centrifugal impeller 221, with the axial flow impeller 211 located on the air inlet side of the centrifugal impeller 221. In other words, the first air supply device 210 is an axial flow fan, and the second air supply device 220 is a centrifugal fan.

[0048] When the embedded air conditioner indoor unit 10 of this utility model is running, the impeller of the second air supply device 220 causes the indoor air to form an airflow that blows toward the impeller of the second air supply device 220. The impeller of the second air supply device 220 causes the airflow to be blown out radially along the impeller of the second air supply device 220, avoiding the airflow from directly impacting the wall surface opposite to the air inlet 101, thereby increasing the wind speed of the airflow blown out from the air outlet 102, and thus increasing the air supply distance.

[0049] For example Figure 2 As shown, both the air inlet 101 and the air outlet 102 are located on the bottom wall of the embedded air conditioner indoor unit 10 in this embodiment of the invention, and the impeller of the first air supply device 210 is located below the impeller of the second air supply device 220. The impeller of the second air supply device 220 causes the indoor air to form an upward airflow, and the impeller of the second air supply device 220 causes the airflow to be blown out in a horizontal direction, avoiding the airflow from directly impacting the top wall of the embedded air conditioner indoor unit 10.

[0050] In some embodiments, there are multiple air outlets 102, spaced apart along the circumferential direction of the air inlet 101. Specifically, there are four air outlets 102, with two air outlets 102 spaced apart in a first horizontal direction and extending in a second horizontal direction, the first horizontal direction being perpendicular to the second horizontal direction. Two air outlets 102 are also spaced apart in the second horizontal direction and extend in the first horizontal direction. The air inlet 101 is located between the four air outlets 102. This allows the airflow generated by the impeller of the second air supply device 220 and blown radially from its impeller to be evenly distributed from the multiple air outlets 102, improving the uniformity of air supply.

[0051] In some embodiments, such as Figure 3 As shown, the air outlet 102 is annular, and the air inlet 101 is located inside the air outlet 102. Specifically, the air outlet 102 includes a first section, a second section, a third section, and a fourth section, which are connected sequentially. The first and second sections are spaced apart in a first horizontal direction, and both the first and second sections extend in the second horizontal direction. The third and fourth sections are also spaced apart in the second horizontal direction, and both the third and fourth sections extend in the first horizontal direction. This allows the airflow generated by the impeller of the second air supply device 220 and blown radially out from the annular air outlet 102 evenly, improving the uniformity of air supply.

[0052] In some embodiments, such as Figure 1 and Figure 2 As shown, the embedded air conditioner indoor unit 10 of this embodiment of the present invention also includes a heat exchanger 400, which is disposed in the housing 100. The housing 100 has an air inlet cavity 110 on the air inlet side of the heat exchanger 400 and an air outlet cavity 120 on the air outlet side of the heat exchanger 400. A first air supply device 210 and a second air supply device 220 are disposed in the air inlet cavity 110, so that the airflow blown radially along the impeller of the second air supply device 220 can pass through the heat exchanger 400 evenly, thereby improving the heat exchange efficiency.

[0053] Specifically, an annular partition (not shown in the figure) is installed inside the housing 100. The upper end of the partition is open, and the lower end of the partition is connected to the air inlet 101, so that the space inside the housing 100 is divided into an air inlet chamber 110 and an air outlet chamber 120. The impeller of the first air supply device 210 is disposed inside the partition. The air inlet side of the impeller of the second air supply device 220 is disposed near the upper end of the partition, so that a relatively closed cavity is formed between the impellers of the first air supply device 210 and the second air supply device 220.

[0054] In heating mode, the air intake of the impeller of the first air supply device 210 is greater than the air intake of the impeller of the second air supply device 220. For example, the rotational speed of the impeller of the first air supply device 210 is greater than the rotational speed of the impeller of the second air supply device 220. This compresses the air between the impellers of the first air supply device 210 and the second air supply device 220, causing the air to heat up and thus improving energy utilization efficiency.

[0055] In cooling mode, the air intake of the impeller of the first air supply device 210 is less than the air intake of the impeller of the second air supply device 220. For example, the rotational speed of the impeller of the first air supply device 210 is less than the rotational speed of the impeller of the second air supply device 220. This causes the air between the impellers of the first air supply device 210 and the second air supply device 220 to expand, thereby cooling the air and improving energy utilization efficiency.

[0056] In some embodiments, such as Figure 1 and Figure 2 As shown, the embedded air conditioner indoor unit 10 of this embodiment also includes an air guide ring 300, which is disposed within the housing 100. The air inlet end 310 of the air guide ring 300 is connected to the air inlet 101. A first air supply device 210 is disposed within the air guide ring 300, and a second air supply device 220 is disposed on the air outlet side of the air guide ring 300. Thus, the air guide ring 300 guides the airflow generated by the impeller of the first air supply device 210 to flow more smoothly to the impeller of the second air supply device 220, preventing airflow from leaking into the housing 100 before entering the impeller of the second air supply device 220.

[0057] Furthermore, such as Figure 1 and Figure 2 As shown, the diameter of the air outlet end of the air guide ring 300 is less than or equal to the diameter of the centrifugal impeller 221. This further ensures that all the airflow from the air guide ring 300 can enter the impeller of the second air supply device 220.

[0058] In some embodiments, the distance between the outlet end of the air guide ring 300 and the centrifugal impeller is 1 mm to 4 mm. Optionally, the distance between the outlet end of the air guide ring 300 and the centrifugal impeller is 1.2 mm to 3.6 mm. Optionally, the distance between the outlet end of the air guide ring 300 and the centrifugal impeller is 1.5 mm to 3.2 mm. Optionally, the distance between the outlet end of the air guide ring 300 and the centrifugal impeller is 1.9 mm to 2.5 mm. This ensures that the distance between the outlet end of the air guide ring 300 and the impeller of the second air supply device 220 is small, preventing excessive airflow leakage from the gap between the outlet end of the air guide ring 300 and the centrifugal impeller, and also preventing interference with the normal rotation of the impeller of the second air supply device 220.

[0059] The distance between the air outlet end of the air guide ring 300 and the centrifugal impeller is, but is not limited to, 1mm, 1.2mm, 1.5mm, 1.9mm, 2.5mm, 3.2mm, 3.6mm or 4mm.

[0060] In some embodiments, such as Figure 1 and Figure 2 As shown, the lower radial dimension of the air guide ring 300 is larger than the upper radial dimension of the air guide ring 300, so that the air guide ring 300 can enter more indoor air, thereby improving the heat exchange efficiency.

[0061] In some embodiments, the ratio of the diameter of the axial flow impeller 211 to the diameter of the centrifugal impeller 221 is 0.9 to 1.2. Optionally, the ratio of the diameter of the axial flow impeller 211 to the diameter of the centrifugal impeller 221 is 0.9 to 1.2. Optionally, the ratio of the diameter of the axial flow impeller 211 to the diameter of the centrifugal impeller 221 is 0.93 to 1.11. Optionally, the ratio of the diameter of the axial flow impeller 211 to the diameter of the centrifugal impeller 221 is 1 to 1.05. This further ensures that the impellers of the first air supply device 210 and the second air supply device 220 can achieve dynamic balance during operation, making the overall operation of the embedded air conditioner indoor unit 10 more stable, and thus further reducing the noise generated during operation.

[0062] In some embodiments, such as Figure 1 and Figure 2 As shown, the motor 212 of the first air supply device 210 is located on the side wall, and the motor 222 of the second air supply device 220 is located on the opposite side wall.

[0063] For example Figure 1 As shown, the motor 212 of the first air supply device 210 is located on the bottom wall of the housing 100, and the motor 222 of the second air supply device 220 is located on the top wall of the housing 100. This avoids excessive load on one side of the housing 100 and ensures the stability of the installation of the first air supply device 210 and the second air supply device 220.

[0064] like Figure 6 As shown, the air conditioner 20 of this utility model embodiment includes the embedded air conditioner indoor unit 10 of any of the above embodiments.

[0065] The air conditioner 20 of this embodiment includes an indoor unit comprising a housing 100 and a fan assembly 200, the fan assembly 200 being disposed within the housing 100. The fan assembly 200 includes a first air supply device 210 and a second air supply device 220, the rotation axes of the impellers of the first and second air supply devices 210 and 220 being coincident, and the rotation directions of the impellers of the first and second air supply devices 210 and 220 being opposite. Thus, when the fan assembly 200 is running, the impellers of the first and second air supply devices 210 achieve dynamic balance, reducing the shaking generated during operation of the embedded air conditioner indoor unit 10 of this embodiment, thereby reducing noise and improving the user experience.

[0066] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of 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. An embedded air conditioner indoor unit, characterized by, include: The housing includes an air inlet and an air outlet; The fan assembly includes a first air supply device and a second air supply device, both of which are disposed within the housing; the rotation axis of the impeller of the first air supply device and the rotation axis of the impeller of the second air supply device coincide, and the rotation directions of the impellers of the first air supply device and the second air supply device are opposite; both the first air supply device and the second air supply device are configured to cause air entering through the air inlet to be blown out through the air outlet.

2. The embedded air conditioner indoor unit according to claim 1, characterized in that, The first air supply device has an axial flow impeller, and the second air supply device has a centrifugal impeller, with the axial flow impeller located on the air inlet side of the centrifugal impeller. 3.The indoor unit of the recessed air conditioner according to claim 2, characterized in that, Also includes: An air guide ring is disposed inside the housing; the air inlet end of the air guide ring is connected to the air inlet, and the first air supply device is disposed inside the air guide ring; The second air supply device is located on the air outlet side of the air guide ring. 4.The indoor unit of the recessed air conditioner according to claim 3, characterized in that, The diameter of the air outlet end of the air guide ring is less than or equal to the diameter of the centrifugal impeller.

5. The embedded air conditioner indoor unit according to claim 3, characterized in that, The distance between the air outlet end of the air guide ring and the centrifugal impeller is 1mm to 4mm.

6. The embedded air conditioner indoor unit according to claim 2, characterized in that, The ratio of the diameter of the axial flow impeller to the diameter of the centrifugal impeller is 0.9 to 1.

2.

7. The embedded air conditioner indoor unit according to claim 2, characterized in that, The air outlet and the air inlet are located on the same side wall of the housing; The air outlets are multiple and spaced apart along the circumferential direction of the air inlet; or, The air outlet is annular, and the air inlet is located inside the air outlet.

8. The embedded air conditioner indoor unit according to claim 7, characterized in that, Also includes: A heat exchanger, wherein the heat exchanger is disposed in the housing; The housing has an air inlet cavity on the air inlet side of the heat exchanger and an air outlet cavity on the air outlet side of the heat exchanger. The first air supply device and the second air supply device are disposed in the air inlet cavity.

9. The embedded air conditioner indoor unit according to claim 7, characterized in that, The motor of the first air supply device is mounted on the side wall; The motor of the second air supply device is located on the opposite side wall.

10. An air conditioner, characterized in that, The embedded air conditioning indoor unit includes any one of claims 1-9.

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