air conditioner

Abstract

The application discloses an air conditioner, which comprises a rotatable fan, the fan comprises a rotatable volute and a motor arranged in the volute, the motor is electrically connected with a power supply component through a motor wire, and the motor wire comprises a first wire segment, a second wire segment and a rotating joint.The first wire segment is directly connected with the motor, is fixedly arranged on the volute and moves synchronously with the volute; the second wire segment is electrically connected with the power supply component; the first wire segment is electrically connected with the second wire segment through the rotating joint; the rotating joint is located outside the volute; and the second wire segment has a reserved length for driving the wire body to rotate with the volute.The air conditioner effectively solves the problem of wire loss caused by twisted wire of the motor wire of the rotatable fan in the air conditioner.

Description

Technical Field

[0001] This invention relates to the field of refrigeration technology, and more specifically, to an air conditioner. Background Technology

[0002] A typical air conditioner (indoor unit) includes at least two air vents: one for air outlet and the other for air return. Airflow is directed between these vents by a fan within the indoor unit. As people's demands for air conditioning comfort increase, the indoor unit needs to switch airflow direction according to the operating mode. However, because the fan blades have directional requirements, reversing the motor that drives them makes airflow reversal difficult, resulting in a fixed airflow direction that cannot be adjusted and fails to meet diverse user needs. Some solutions utilize multiple mixed-flow fans that rotate 180° within the indoor unit, achieving reverse airflow.

[0003] Drive systems used to rotate fans often employ motors and rotating mechanisms to drive the fan. A key challenge is ensuring that the motor is powered while the motor wires remain untwisted. Traditional methods address this through two points: either selecting anti-torsion wire materials or lengthening the wire's rotation path to distribute stress and prevent concentrated damage. However, these traditional methods only extend the wire's lifespan and do not completely solve the problem of wire damage caused by twisting.

[0004] In summary, existing technologies suffer from the problem of wire damage caused by twisting in the motor wires of the rotatable fan in air conditioners. Summary of the Invention

[0005] This invention provides an air conditioner to solve the problem of wire damage caused by twisting of the motor wires of the rotatable fan in the air conditioner.

[0006] To achieve the above objectives, the present invention provides an air conditioner, including a rotatable fan. The fan includes a rotatable volute and a motor disposed inside the volute. The motor is electrically connected to a power supply component via a motor wire. The motor wire includes: a first segment, which is directly connected to the motor and is fixedly disposed on the volute and moves synchronously with the volute; and a second segment, which is electrically connected to the power supply component. The first segment is electrically connected to the second segment via a rotating node located outside the volute. The second segment has a reserved length for the volute to rotate and drive the wire body.

[0007] Furthermore, the rotating node is an onboard connector.

[0008] Furthermore, there are multiple fans, all connected in sequence, all fans can rotate simultaneously and change the direction of the air outlet, and the rotation axes of all fans are collinear.

[0009] Furthermore, there are multiple first line segments, and the number of first line segments is set to correspond one-to-one with the number of motors. All first line segments are aggregated at the rotation node.

[0010] Furthermore, the second segment is a single line, and all the first segments are electrically connected to the second segment through rotating nodes.

[0011] Furthermore, there are multiple second line segments, and each second line segment is connected to the first line segment in a one-to-one correspondence.

[0012] Furthermore, the air conditioner includes a drive unit, at least one fan is connected to the drive unit, and the drive unit is connected to the fan drive to drive all the fans to rotate.

[0013] Furthermore, the fan located at the head end of all the fans is connected to the drive device, and the rotation node is located at the position of the drive device; along the direction from the tail end to the head end of all the fans, the first line segment corresponding to the fan passes through the wiring of other fans to the rotation node in sequence.

[0014] Furthermore, the fan is equipped with a cable tray, and the first cable segment is routed within the cable tray.

[0015] Furthermore, the motor seal is located inside the mounting housing, the motor wire passes through the mounting housing, and a sealing ring is provided on the motor wire. The motor wire is sealed to the mounting housing through the sealing ring.

[0016] Furthermore, the motor wire body and the sealing ring are integrally formed.

[0017] Furthermore, the air conditioner is a ducted unit.

[0018] Furthermore, the fan is any one of a mixed-flow fan, an axial-flow fan, or a centrifugal fan.

[0019] The motor wire is designed in multiple parts. The first segment is fixed to the volute 11 and rotates synchronously with it. The motor wire inside the volute will not twist. Meanwhile, the rotation node between the second and first segments is placed outside the volute; that is, the point of rotation is moved outside the volute, thus solving the problem of twisting and tangling of the motor wire inside the volute. Simultaneously, the rotation of the fan inevitably rotates the motor wire, and this rotational amount is borne by the second segment. The second segment has sufficient length for its own rotation and will not twist. By designing the multiple parts of the motor wire and their coordinated relationship, the fan's motor wire will not twist during fan rotation, completely eliminating the problem of wire loss caused by twisting. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the internal structure of an air conditioner according to an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 An enlarged schematic diagram of part of the structure of an air conditioner;

[0022] Figure 3 This is a schematic diagram of the structure of the motor and mounting housing of the air conditioner according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the motor wiring arrangement of an air conditioner according to another embodiment of the present invention. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0025] See Figures 1 to 4 As shown, according to an embodiment of the present invention, an air conditioner is provided. The air conditioner includes a rotatable fan 10, the fan 10 includes a rotatable volute 11 and a motor 12 disposed inside the volute 11. The motor 12 is electrically connected to a power supply component via a motor wire 20. The motor wire 20 includes a first segment 21 and a second segment 22. The first segment 21 is directly connected to the motor 12 and is fixedly disposed on the volute 11 and moves synchronously with the volute 11. The second segment 22 is electrically connected to the power supply component. The first segment 21 is electrically connected to the second segment 22 via a rotating node 23. The rotating node 23 is located outside the volute 11. The second segment 22 has a reserved length for the volute 11 to rotate and drive the wire body.

[0026] The motor wire is designed in multiple parts. The first segment is fixed to the volute 11 and rotates synchronously with it. The motor wire inside the volute will not twist. Meanwhile, the rotation node between the second and first segments is placed outside the volute; that is, the point of rotation is moved outside the volute, thus solving the problem of twisting and tangling of the motor wire inside the volute. Simultaneously, the rotation of the fan inevitably rotates the motor wire, and this rotational amount is borne by the second segment. The second segment has sufficient length for its own rotation and will not twist. By designing the multiple parts of the motor wire and their coordinated relationship, the fan's motor wire will not twist during fan rotation, completely eliminating the problem of wire loss caused by twisting.

[0027] It should be noted that the rotation node 23 is the point where the first and second line segments meet. As the intersection of the two rotational trajectories of the motor wire, the first line segment rotates synchronously with the volute. After the rotation node, the rotation of the second line segment is determined by the structure and trajectory of the rotation node. The function of the second line segment is to absorb the rotational amount of the motor wire, while the rotation node separates the rotation of the first and second line segments. The rotation node 23 can be a fixed structure at the junction of two line segments in the motor wire, such as a fixing clamp or a fixing latch.

[0028] In this embodiment, the rotating node 23 is an onboard connector. That is, in this embodiment, the first segment and the second segment are electrically connected via an onboard connector. The onboard connector is a socket with wiring holes, generally used for circuit connections; its structure is existing technology and will not be described further here. The advantage of using an onboard connector in this embodiment is that it can both complete the electrical connection between the first and second segments and separate their rotational trajectories, serving a dual purpose. Even though the onboard connector is installed outside the volute, it will rotate with the volute. The synchronous rotation of the first segment with the volute remains unchanged, while the second segment connected to the onboard connector absorbs the rotation of the onboard connector (which is also the rotation of the motor wires) and rotates on its own. The length of the second segment is sufficient for its rotation.

[0029] See Figure 1 There are multiple fans 10, all connected sequentially. All fans 10 can rotate simultaneously and change the direction of the air outlet. The rotation axes of all fans 10 are collinear. By setting the rotation axes of all fans 10 to be collinear, no clearance needs to be reserved between fans 10. The spacing between fans 10 can be reduced or eliminated (when they are connected), thereby greatly reducing the space occupied by the fan components, shortening the overall length of the air conditioner, and improving product competitiveness.

[0030] The number of first line segments 21 is adjusted according to the number of fans. There are multiple first line segments 21, and the number of first line segments 21 corresponds one-to-one with the number of motors 12. All first line segments 21 are connected to the rotation node 23. Each fan is configured with a separate first line segment.

[0031] In this embodiment, there are multiple second line segments 22, each connected to a corresponding first line segment 21. To facilitate speed control of different fans, each motor line is managed separately, controlling its electrical signal to control the rotation of each fan. Figure 4In another embodiment shown, the second line segment 22 is a single line, and all the first line segments 21 are electrically connected to the second line segment 22 via rotating nodes 23. The power supply component 40 directly connects to and supplies power to multiple wind turbines through the single second line segment 22.

[0032] Preferably, the air conditioner includes a drive unit 30, with at least one fan 10 connected to the drive unit 30. The drive unit 30 is driven by the fan 10 to rotate all the fans 10. There can be two or three drive units. With two drive units, one drive unit can drive one or more fans, while the other drive unit drives the remaining fans 10, thereby reducing the load on each drive unit. At the same time, if one drive unit fails, it can still be driven by another drive unit, thus ensuring the reliability of the duct air conditioner's operation.

[0033] Combination Figure 1 and Figure 2 As shown, the fan 10 located at the head end of all fans 10 is connected to the drive unit 30, and the rotation node 23 is located at the drive unit 30. Along the direction from the tail end to the head end of all fans 10, the first line segment 21 corresponding to fan 10 sequentially passes through the other fans 10 to the rotation node 23. The fans are arranged such that the rotation axes of all fans 10 are collinear, see [reference needed]. Figure 1 The arrangement, Figure 1 In the direction from left to right, located in Figure 1 The leftmost wind turbine is located at the beginning of all the wind turbines. Figure 1 The rightmost fan is located at the end of all the fan units; the direction of the motor wiring is from... Figure 1 From right to left, the motor wires pass through the middle fan and the leftmost fan in sequence, and then converge at the rotation node 23 at the drive unit position.

[0034] Preferably, the fan 10 is provided with a wiring groove 10a inside, and the first wire segment 21 is routed in the wiring groove 10a. The wiring groove 10a is set on the inner wall of the volute, so as not to affect the energy efficiency of the fan and to enable the first wire segment of the motor wire to rotate synchronously.

[0035] The entire fan is located inside a condensation-prone air duct. The motor inside the fan experiences condensation due to the exchange of hot and cold air within the duct cavity. The condensation point enters the motor through the motor cable interface, resulting in a small amount of air inside the motor. This condensation problem occurs when switching between heating and cooling modes. Over time, this corrosion damages the enameled wires and mainboard components inside the motor, ultimately harming the motor. To address this issue, in this embodiment, the motor 12 is sealed within the mounting housing 50. The motor cable 20 passes through the mounting housing 50, and a sealing ring 60 is provided on the cable. The motor cable 20 is sealed to the mounting housing 50 via the sealing ring 60. (See [reference]). Figure 3The mounting housing is constructed by integrating the front cover 51 and the rear cover 52, placing the motor 12 inside the mounting housing 50. A sealing ring 60 is used to achieve a seal, preventing moisture from entering the mounting housing 50 and thus solving the problem of motor condensation.

[0036] To facilitate production and disassembly, the motor wire and sealing ring are integrally molded. Disassembly and assembly only require direct manipulation of the motor wire; no special handling of the sealing ring is necessary. Since both the wire and sealing ring are made of insulating rubber, production is very simple and cost-effective compared to manufacturing them separately.

[0037] In this embodiment, the air conditioner is a ducted air conditioner. The fan 10 is any one of a mixed-flow fan, an axial fan, or a centrifugal fan. In this embodiment, the fan 10 is a mixed-flow fan. A mixed-flow fan is a type of fan that falls between an axial mixed-flow fan and a centrifugal mixed-flow fan. The impeller of a mixed-flow fan causes the air to undergo both centrifugal and axial motion, and the airflow within the casing combines both axial and centrifugal motions, hence the name "mixed-flow." Because mixed-flow fans can not only be made smaller in size but also maintain the airflow direction and pressure, they are installed inside the ducted air conditioner to achieve reversible airflow and change the outlet direction. In some other embodiments not shown in the figure, the fan 10 can also be an axial fan or a centrifugal fan.

[0038] The ducted air conditioner has a downdraft and a side vent on its casing, and the fan 10 has a first orientation and a second orientation. When the ducted air conditioner is in cooling mode, the fan 10 is in the first orientation, with air entering through the downdraft and exiting through the side vent. When the ducted air conditioner is in heating mode, the fan 10 is in the second orientation, with air entering through the side vent and exiting through the downdraft.

[0039] Furthermore, the ducted air conditioning system also includes mounting brackets, on which all fans are connected. Specifically, such as... Figure 1 As shown, multiple fans 10 are strung together like a skewer of candied hawthorns, with adjacent fans 10 fixed to each other. Therefore, to simplify the overall assembly structure, mounting brackets can be placed on the fans at both ends. During assembly, the fans 10 and the mounting brackets form a single unit, with the fans 10 fixed inside the duct by the mounting brackets. During installation, the fans 10 are first installed onto the mounting brackets, and then the mounting brackets are fixed inside the duct. For disassembly, the mounting brackets are removed, and the fans can be taken out together. Compared to traditional ducted air conditioners with rotatable fans, the disassembly and assembly process is much simpler for operators. Furthermore, removing the fans and mounting brackets as a whole allows for disassembly and maintenance in a spacious and well-lit area, making the operation more convenient and improving work efficiency.

[0040] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0041] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0042] Of course, the above are preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the basic principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An air conditioner comprising a rotatable fan (10), the fan (10) comprising a rotatable volute (11) and a motor (12) disposed inside the volute (11), the motor (12) being electrically connected to a power supply component (40) via a motor wire (20), characterized in that, The motor wire (20) includes: The first line segment (21) is directly connected to the motor (12), and the first line segment (21) is set on the volute (11) and moves synchronously with the volute (11); The second line segment (22) is electrically connected to the power supply component. The first line segment (21) is electrically connected to the second line segment (22) through a rotating node (23). The rotating node (23) is located outside the volute (11). The second line segment (22) has a reserved length for the volute (11) to rotate and drive the line body. The rotating node (23) is an onboard connector.

2. The air conditioner according to claim 1, characterized in that, There are multiple fans (10), all of which are connected in sequence. All of the fans (10) can rotate simultaneously and change the direction of the air outlet. The rotation axes of all the fans (10) are collinear.

3. The air conditioner according to claim 2, characterized in that, The number of the first line segment (21) is multiple, and the number of the first line segment (21) corresponds one-to-one with the number of the motor (12). All the first line segments (21) are aggregated to the rotating node (23).

4. The air conditioner according to claim 3, characterized in that, The second line segment (22) is a single line, and all the first line segments (21) are electrically connected to the second line segment (22) through the rotating node (23).

5. The air conditioner according to claim 3, characterized in that, There are multiple second line segments (22), and each second line segment (22) is connected to the first line segment (21) in a one-to-one correspondence.

6. The air conditioner according to claim 3, characterized in that, The air conditioner includes a drive unit (30), at least one of the fans (10) is driven connected to the drive unit (30), and the drive unit (30) is driven connected to the fans (10) to drive all the fans (10) to rotate.

7. The air conditioner according to claim 6, characterized in that, The fan (10) located at the head end of all the fans (10) is driven to be connected to the drive device (30), and the rotating node (23) is located at the position of the drive device (30); Along the direction from the tail end to the head end of all the fans (10), the first line segment (21) corresponding to the fan (10) passes through the other fans (10) in sequence to the rotation node (23).

8. The air conditioner according to claim 7, characterized in that, The fan (10) is provided with a wiring groove (10a) inside, and the first line segment (21) is routed in the wiring groove (10a).

9. The air conditioner according to claim 1, characterized in that, The motor (12) is sealed inside the mounting housing (50), the motor wire (20) passes through the mounting housing (50), and a sealing ring (60) is provided on the wire body of the motor wire (20). The motor wire (20) is sealed to the mounting housing (50) through the sealing ring (60).

10. The air conditioner according to claim 9, characterized in that, The motor wire (20) is integrally formed with the sealing ring (60).

11. The air conditioner according to claim 1, characterized in that, The air conditioner in question is a ducted air conditioner.

12. The air conditioner according to claim 1 or 11, characterized in that, The fan (10) is any one of a mixed-flow fan, an axial-flow fan, or a centrifugal fan.

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