Fan assembly of air conditioner indoor unit, air conditioner indoor unit and air conditioner system

Abstract

The utility model relates to air conditioning system, specifically provide a fan assembly of air conditioning indoor unit, air conditioning indoor unit and air conditioning system, aims at solving the problem that the cross flow fan of single air -out direction in prior art air conditioning indoor unit cannot realize multi -direction air supply, for this purpose, a fan assembly of air conditioning indoor unit of the utility model includes the cross flow fan and axial flow fan of coaxial arrangement, be provided with the bearing between cross flow fan with axial flow fan, to make cross flow fan with axial flow fan can rotate independently. The utility model discloses a cross flow fan and axial flow fan are coaxially arranged in air conditioning indoor unit, and the bearing is arranged between the two, so that it can rotate independently, thereby realizing the combined air supply mode of multiple air directions. The structure not only retains the advantages of cross flow fan stable air volume, wide coverage, but also combines the ability of axial flow fan long-distance air supply, can flexibly adjust the air supply direction according to the use demand, significantly improves the air supply comfort and use experience of air conditioning.

Description

Technical Field

[0001] This utility model relates to air conditioning systems, specifically providing a fan assembly for an indoor air conditioning unit, an indoor air conditioning unit, and an air conditioning system. Background Technology

[0002] Currently, air conditioner indoor units, especially wall-mounted air conditioners, commonly use cross-flow fans as the main air supply device. Cross-flow fans have advantages such as compact structure, stable operation, and uniform airflow output, making them suitable for installation at the front of the air conditioner casing to achieve horizontal airflow. However, because their air outlet structure is usually relatively simple, with only one fixed air outlet, the airflow direction cannot be dynamically adjusted according to the actual usage scenario, resulting in a fixed airflow path and a lack of flexibility. This single air supply method has certain limitations in actual use, making it difficult to effectively adjust according to room layout or occupant distribution, easily causing problems such as large local temperature differences, uneven air circulation, and even cold air blowing directly on users, thus affecting the comfort and user experience of the air conditioner. As users' demands for air conditioning comfort, intelligence, and personalized air supply continue to increase, the existing unidirectional air supply structure of cross-flow fans can no longer meet the requirements of diverse application scenarios.

[0003] Therefore, there is an urgent need in the field for a fan assembly for an air conditioner indoor unit, an air conditioner indoor unit, and an air conditioning system to solve the above problems. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that the cross-flow fan in the existing air conditioning indoor unit has a single air outlet direction and cannot achieve multi-directional air supply.

[0005] In a first aspect, the present invention provides a fan assembly for an indoor unit of an air conditioner, the fan assembly including an axial fan and a cross-flow fan arranged coaxially, wherein a bearing is provided between the axial fan and the cross-flow fan so that the axial fan and the cross-flow fan can rotate independently.

[0006] In a specific embodiment of the above-described fan assembly, the axial fan includes a first annular component, the cross-flow fan includes a second annular component, the second annular component is disposed at the first end of the cross-flow fan, the second annular component is sleeved outside the first annular component, and a plurality of rollers are disposed between the first annular component and the second annular component to form the bearing.

[0007] In a specific embodiment of the above-described fan assembly, the fan assembly further includes a first driving member, the axial fan is connected to the first driving member, and the first driving member is capable of driving the axial fan to rotate.

[0008] In a specific embodiment of the above-described fan assembly, the fan assembly further includes a second driving member, the second end of the cross-flow fan is connected to the second driving member, and the second driving member is capable of driving the cross-flow fan to rotate.

[0009] In a specific embodiment of the above-described fan assembly, the fan assembly further includes a control module, wherein the first drive member and the second drive member are both electrically connected to the control module, and the control module is capable of controlling the rotational speed of the first drive member and the rotational speed of the second drive member.

[0010] In a specific embodiment of the above-described fan assembly, the fan assembly further includes a signal receiver electrically connected to the control module. The signal receiver is capable of receiving control signals, and the control module is capable of controlling the rotational speed of the first drive component and the rotational speed of the second drive component according to the control signals.

[0011] In a second aspect, the present invention provides an indoor air conditioning unit, which includes the aforementioned fan assembly.

[0012] In the specific embodiment of the above-mentioned air conditioner indoor unit, the air conditioner indoor unit further includes a housing, on which a first air outlet and a second air outlet are provided, and an angle is provided between the air outlet direction of the first air outlet and the air outlet direction of the second air outlet.

[0013] Both the cross-flow fan and the axial fan are housed within the housing. The cross-flow fan drives air to be discharged from the first air outlet, and the axial fan drives air to be discharged from the second air outlet.

[0014] In the specific implementation of the above-mentioned air conditioner indoor unit, the air outlet direction of the first air outlet and the air outlet direction of the second air outlet are set perpendicularly.

[0015] In a third aspect, the present invention provides an air conditioning system, which includes the aforementioned indoor air conditioning unit.

[0016] By adopting the above technical solution, this utility model coaxially arranges a cross-flow fan and an axial fan in the indoor unit of the air conditioner, and sets a bearing between them so that they can rotate independently, thereby realizing a combination of air supply methods with multiple air directions. This structure not only retains the advantages of stable air volume and wide coverage of the cross-flow fan, but also combines the long-distance air supply capability of the axial fan, which can flexibly adjust the air supply direction according to usage needs, significantly improving the air supply comfort and user experience of the air conditioner.

[0017] Furthermore, this utility model provides a first annular component at the first end of the cross-flow fan and a second annular component on the axial fan, with the first annular component fitted over the second annular component and multiple rollers forming a bearing between them. This enables the cross-flow fan and the axial fan to achieve stable, low-friction independent rotation, simplifying the connection method of the fan assembly.

[0018] Furthermore, this invention incorporates a first drive component and a second drive component within the fan assembly, enabling the axial flow fan and cross-flow fan to rotate independently, respectively. A control module precisely regulates the speed of both drive components. Even further, a signal receiver receives and responds to control signals, thus equipping the fan assembly with intelligent adjustment capabilities. This structure not only enhances the flexibility and precision of airflow but also allows for multi-mode fan speed control based on varying environmental requirements or user settings, thereby improving the intelligence and ease of use of the air conditioning system.

[0019] Furthermore, the indoor unit of this air conditioner has two air outlets on its casing, with an angle between the air outlet directions. This allows the cross-flow fan and axial fan to deliver air in different directions, achieving a multi-angle, three-dimensional air circulation effect. This structure significantly improves the coverage and comfort of the air conditioning system, meets users' needs for multi-directional, high-efficiency air delivery, and improves the localized unevenness problem caused by traditional single-air delivery modes. Attached Figure Description

[0020] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0021] Figure 1 This is a schematic diagram of the structure of the axial flow fan provided by this utility model;

[0022] Figure 2 This is a schematic diagram of the first end-side structure of the cross-flow fan provided by this utility model;

[0023] Figure 3 This is a schematic diagram of the second end side structure of the cross-flow fan provided by this utility model;

[0024] Figure 4 This is a schematic diagram of the connection structure of the control module provided by this utility model;

[0025] Figure 5 This is a schematic diagram of the installation structure of the housing provided by this utility model.

[0026] List of reference numerals in the attached diagram:

[0027] 1. Axial flow fan; 101. First annular component; 102. First blade; 103. Support bracket;

[0028] 2. Crossflow fan; 201. Second annular component; 202. Second blade; 203. Connecting plate; 204. Connecting shaft;

[0029] 3. Roller;

[0030] 4. First drive unit; 5. Second drive unit; 6. Control module; 7. Signal receiver;

[0031] 8. Housing; 801. First air outlet; 802. Second air outlet; 9. Wall. Detailed Implementation

[0032] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0033] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] To address the problem that existing air conditioning indoor units have a single airflow direction for cross-flow fans and cannot achieve multi-directional airflow, this embodiment discloses an air conditioning system. The air conditioning system includes an indoor unit, specifically a wall-mounted indoor unit, which includes a fan assembly and a housing.

[0036] The fan assembly includes an axial fan, a cross-flow fan, a first drive unit, a second drive unit, a signal receiver, and a control module.

[0037] Reference Figure 1The axial flow fan 1 includes a first blade 102, a first annular member 101, and a bracket 103, all integrally formed. The structure of the first blade 102 is the same as that of the blades in the prior art axial flow fan 1, and its specific structure will not be described in detail here. Specifically, the axial flow fan 1 includes a plurality of first blades 102 arranged along the circumference. The first annular member 101 is sleeved on the plurality of first blades 102. The bracket 103 connects the first blades 102 and the first annular member 101. The bracket 103 is connected to a first drive member 4. The first drive member 4 is specifically a motor, which can drive the axial flow fan 1 to rotate.

[0038] Reference Figure 2 and Figure 3 The cross-flow fan 2 is approximately cylindrical in shape. The cross-flow fan 2 includes multiple second blades 202, which are arranged along the circumference of the cylinder. The cross-flow fan 2 also includes multiple connecting plates 203, which are annular in shape. The multiple second blades 202 are integrally formed with the connecting plates 203, and the connecting plates 203 are spaced apart.

[0039] The connecting plate 203 located at the first end of the cross-flow fan 2 is a second annular component 201, which is sleeved outside the first annular component 101. A gap is provided between the outer wall of the first annular component 101 and the inner wall of the second annular component 201, and multiple rollers 3 are arranged in this gap. The rollers 3 simultaneously contact the first annular component 101 and the second annular component 201 to form a bearing. This bearing connects the axial fan 1 and the cross-flow fan 2 into a whole, making the structure of the fan assembly more compact; the axial fan 1 and the cross-flow fan 2 can also rotate independently.

[0040] The connecting plate 203 located at the second end of the cross-flow fan 2 is a circular plate; in other words, compared to other connecting plates 203, the middle of this connecting plate 203 is closed. A connecting shaft 204 is provided at the center of this connecting plate 203, and the connecting shaft 204 is connected to the second driving component 5. The second driving component 5 is specifically a motor. The second driving component 5 can drive the cross-flow fan 2 to rotate.

[0041] The signal receiver 7 is capable of receiving control signals. Specifically, the signal receiver 7 includes any one or more of the following: an infrared signal receiver, a radio frequency signal receiver, a Wi-Fi signal receiver, and a Bluetooth signal receiver.

[0042] Reference Figure 4 The first drive unit 4, the second drive unit 5, and the signal receiver 7 are all electrically connected to the control module 6. The control module 6 can control the rotational speed of the first drive unit 4 and the second drive unit 5 based on the signal received by the signal receiver 7, thereby controlling the rotational speed of the axial fan 1 and the cross-flow fan 2. Specifically, the fan assembly includes the following multiple operating modes:

[0043] In the first working mode, the second drive unit 5 drives the cross-flow fan 2 to start, while the first drive unit 4 and the axial fan 1 are both turned off.

[0044] In the second working mode, both the second drive unit 5 and the cross-flow fan 2 are turned off, and the first drive unit 4 drives the axial fan 1 to rotate.

[0045] In the third working mode, the second drive unit 5 drives the cross-flow fan 2 to start, and the first drive unit 4 drives the axial flow fan 1 to rotate.

[0046] The control module can be configured to execute only the above control method without executing other operation controls of the air conditioning system, which can be provided by other control modules; or it can be configured to execute other operation controls of the air conditioning system in addition to executing the control method, that is, the control module is a comprehensive execution module that executes various programs in the operation of the air conditioning system.

[0047] Reference Figure 5 The shape of the housing 8 is basically the same as that of the housing 8 of the existing wall-mounted indoor unit, and its specific structure will not be described in detail here. The housing 8 is provided with a first air outlet 801 and a second air outlet 802. The first air outlet 801 is located at the front of the housing 8; in other words, when the rear of the housing 8 is mounted on the wall 9, the first air outlet 801 is located at a position away from the wall 9. The second air outlet 802 is located at the side of the housing 8; in other words, when the housing 8 is mounted on the wall 9, the second air outlet 802 is located between the front and rear. The first air outlet 801 is connected to the cross-flow fan 2, and when the cross-flow fan 2 rotates, it can drive the air inside the housing 8 to be discharged through the first air outlet 801. The second air outlet 802 is connected to the axial fan 1, and when the axial fan 1 rotates, it can drive the air inside the housing 8 to be discharged through the second air outlet 802.

[0048] When the fan assembly is in the first operating mode, the cross-flow fan 2 drives air out of the first air outlet 801 at the front of the housing 8, the axial fan 1 is turned off, and the second air outlet 802 does not produce air. This operating mode is similar to the air outlet method of a typical wall-mounted air conditioner. The air exhausted by the air conditioner flows directly to the center of the indoor space. In this mode, the airflow distribution is uniform and the coverage is wide, which is conducive to quickly adjusting the temperature and humidity of the entire indoor space. It is particularly suitable for the initial operation phase when rapid cooling or heating is required, improving the cooling / heating efficiency of the air conditioner and user comfort.

[0049] When the fan assembly is in the second operating mode, the cross-flow fan 2 is off, the first air outlet 801 does not produce air, and the axial fan 1 drives air to be exhausted from the second air outlet 802 on the side of the housing 8. The air exhausted by the air conditioner flows along the wall 9, effectively reducing the direct draft felt by people in the room and avoiding discomfort caused by direct cold or hot air. This mode is suitable for nighttime or long-term air conditioning use, especially improving the comfort of the sleeping environment.

[0050] When the fan assembly is in the third operating mode, the cross-flow fan 2 drives air to be discharged from the first air outlet 801 at the front of the housing 8, and the axial fan 1 drives air to be discharged from the second air outlet 802 on the side of the housing 8. A portion of the air discharged by the air conditioner flows directly to the center of the indoor space, achieving rapid adjustment of the temperature and humidity in the core area; another portion flows along the wall, forming a wall-hugging airflow path, reducing the direct impact of airflow on people. Through the combined air delivery of the dual air ducts, synchronous airflow coverage of the central and peripheral areas can be achieved, improving air circulation efficiency and enhancing the uniformity of overall temperature control. This is particularly suitable for environments with high heat loads or large gatherings, further improving the comfort and energy efficiency of air conditioning use.

[0051] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A fan assembly for an indoor unit of an air conditioner, characterized in that, It includes an axial fan (1) and a cross-flow fan (2) arranged coaxially, and a bearing is provided between the axial fan (1) and the cross-flow fan (2) so that the axial fan (1) and the cross-flow fan (2) can rotate independently.

2. The fan assembly according to claim 1, characterized in that, The axial fan (1) includes a first annular component (101), and the cross-flow fan (2) includes a second annular component (201). The second annular component (201) is disposed at the first end of the cross-flow fan (2) and is sleeved on the outside of the first annular component (101). A plurality of rollers (3) are disposed between the first annular component (101) and the second annular component (201) to form the bearing.

3. The fan assembly according to claim 1, characterized in that, The fan assembly further includes a first drive unit (4), the axial fan (1) is connected to the first drive unit (4), and the first drive unit (4) is capable of driving the axial fan (1) to rotate.

4. The fan assembly according to claim 3, characterized in that, The fan assembly further includes a second drive member (5), the second end of the cross-flow fan (2) is connected to the second drive member (5), and the second drive member (5) can drive the cross-flow fan (2) to rotate.

5. The fan assembly according to claim 4, characterized in that, The fan assembly also includes a control module (6), wherein the first drive member (4) and the second drive member (5) are both electrically connected to the control module (6), and the control module (6) is capable of controlling the rotational speed of the first drive member (4) and the rotational speed of the second drive member (5).

6. The fan assembly according to claim 5, characterized in that, The fan assembly also includes a signal receiver (7) electrically connected to the control module (6). The signal receiver (7) is capable of receiving control signals, and the control module (6) is capable of controlling the rotational speed of the first drive unit (4) and the rotational speed of the second drive unit (5) according to the control signals.

7. An indoor unit for an air conditioner, characterized in that, Includes the fan assembly as described in any one of claims 1-6.

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The indoor unit of the air conditioner also includes a housing (8), on which a first air outlet (801) and a second air outlet (802) are provided, and an angle is provided between the air outlet direction of the first air outlet (801) and the air outlet direction of the second air outlet (802). Both the cross-flow fan (2) and the axial fan (1) are disposed inside the housing (8). The cross-flow fan (2) can drive air out from the first air outlet (801), and the axial fan (1) can drive air out from the second air outlet (802).

9. The indoor unit of the air conditioner according to claim 8, characterized in that, The air outlet (801) is perpendicular to the air outlet (802).

10. An air conditioning system, characterized in that, Including the indoor unit of an air conditioner as described in any one of claims 7-9.

Images