Air conditioner

Abstract

The utility model discloses an air conditioner, and relates to the technical field of air conditioners, the air conditioner comprises a casing, a fresh air module, a driving motor and a transmission assembly, a main wind wheel is arranged in the casing; the fresh air module comprises a fresh air shell and a fresh air wheel arranged in the fresh air shell, and the fresh air shell is connected with the machine shell. The driving motor is arranged in the fresh air shell and used for being connected with the main air wheel in a driving mode. The transmission assembly comprises a driving wheel and at least one driven wheel which are in magnetic coupling transmission, the driving wheel is in driving connection with the driving motor, and the driven wheel is in transmission connection with the fresh air wheel; according to the technical scheme, the size of the air conditioner can be reduced, and meanwhile the overall energy efficiency of the air conditioner is improved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and in particular to an air conditioner. Background Technology

[0002] For air conditioners with fresh air function, the main fan wheel and the fresh air wheel are usually driven by corresponding motors to realize the circulation and regulation of the indoor air conditioner. However, this not only increases the number of parts and the size and weight of the whole unit, but also the existing transmission methods often use mechanical connections, such as belt drive or gear drive. These transmission methods will generate large vibrations and friction during operation, resulting in noise generation and energy loss. Utility Model Content

[0003] The main purpose of this utility model is to propose an air conditioner that aims to reduce the size of the air conditioner while improving its overall energy efficiency.

[0004] To achieve the above objectives, the air conditioner proposed in this utility model includes:

[0005] The housing contains the main impeller;

[0006] The fresh air module includes a fresh air housing and a fresh air impeller disposed inside the fresh air housing, the fresh air housing being connected to the casing;

[0007] A drive motor, located within the fresh air housing, is used to drive the main impeller; and

[0008] The transmission assembly includes a driving wheel with magnetic coupling and at least one driven wheel. The driving wheel is driven and connected to the drive motor, and the driven wheel is driven and connected to the fresh air wheel.

[0009] In one embodiment, the drive motors are arranged at intervals around the periphery of the new wind turbine.

[0010] In one embodiment, the drive wheel is located outside the fresh air housing and is connected between the drive motor and the main impeller.

[0011] In one embodiment, there are two driven wheels, namely a first driven wheel and a second driven wheel. The first driven wheel is connected to the fresh air wheel, and the driving wheel is connected to the first driven wheel through the second driven wheel.

[0012] In one embodiment, the first driven wheel is disposed on the periphery of the second driven wheel, and a coupling gap is formed between the two surfaces of the first driven wheel and the second driven wheel that are coupled together;

[0013] Alternatively, the first driven wheel is disposed on the end side of the second driven wheel, and a coupling gap is formed between the two surfaces of the first driven wheel and the second driven wheel that are coupled together;

[0014] Alternatively, the second driven wheel is provided with a groove for the first driven wheel to be inserted, and a coupling gap is formed between the two surfaces of the first driven wheel and the second driven wheel that are coupled together.

[0015] In one embodiment, the diameter of the first driven wheel is smaller than the diameter of the second driven wheel.

[0016] In one embodiment, the driving wheel is disposed on the periphery of the second driven wheel, and a coupling gap is formed between the two surfaces of the driving wheel and the second driven wheel that are coupled together.

[0017] In one embodiment, both the driving wheel and the driven wheel are magnetic wheels, and the coupling gap L formed between the driving wheel and the driven wheel, and between each of the driven wheels, satisfies the following condition: 0.1mm≤L≤2mm.

[0018] In one embodiment, the air conditioner further includes a clutch for causing the driving wheel and the driven wheel to move relative to each other to have a engaged position and a stopped position;

[0019] Driven by the drive motor, the main impeller and the new impeller rotate synchronously through magnetic coupling at the linkage position, and the new impeller stops rotating at the stop position.

[0020] In one embodiment, the clutch is driven to connect with the first driven wheel or the second driven wheel, so that the first driven wheel or the second driven wheel is away from the driving wheel and is in the stopped position.

[0021] In the technical solution of this utility model, the drive motor drives the main fan wheel to rotate, and also drives the fresh fan wheel to rotate through the setting of the transmission component. At this time, there is no need to equip an additional drive motor to drive the fresh fan wheel separately, saving the installation space required for the drive motor and helping to achieve a compact layout of various components inside the air conditioner. In particular, the fresh fan wheel and the drive motor are both located in the fresh air housing of the fresh air module, making full use of the internal space of the fresh air housing and saving the space occupied by the drive motor on the housing, thereby improving the compactness of the fresh air module and the main fan wheel, which helps to shorten the axial dimension of the air conditioner in the main fan wheel and reduce the volume of the air conditioner.

[0022] The transmission assembly includes a driving wheel and at least one driven wheel with magnetic coupling. The driving wheel is driven by a drive motor, and the driven wheel is driven by a fresh air impeller. In turn, the drive motor is driven by the main air impeller, which can rotate the main air impeller. The power of the drive motor can also be transmitted through the magnetic field force between the driving wheel and the driven wheel, driving the fresh air impeller to rotate. Thus, one drive motor can drive both the main air impeller and the fresh air impeller simultaneously. Because the driving wheel and the driven wheel transmit power through magnetic coupling, compared with traditional mechanical transmission, the driving wheel and the driven wheel do not need to be in direct contact, effectively avoiding friction between the driving wheel and the driven wheel during operation, reducing the operating noise and energy loss of the air conditioner, thereby improving the overall energy efficiency of the air conditioner, and also ensuring the service life and high-precision transmission of the transmission assembly to a certain extent. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the structure of an embodiment of the air conditioner provided by this utility model;

[0025] Figure 2 for Figure 1 A schematic diagram of the structure of an air conditioner with part of its fresh air casing removed;

[0026] Figure 3 for Figure 2 Assembly diagram of the main impeller, fresh impeller, transmission components and drive motor.

[0027] Explanation of icon numbers:

[0028] 11. Main impeller; 12. Drive motor;

[0029] 21. Fresh air impeller; 22. Fresh air casing; 221. Fresh air inlet;

[0030] 30. Transmission assembly; 31. Driving wheel; 321. First driven wheel; 322. Second driven wheel; 33. Coupling gap;

[0031] 40. Clutch.

[0032] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0034] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] For air conditioners with fresh air function, the main fan wheel and the fresh air wheel are usually driven by corresponding motors to realize the circulation and regulation of the indoor air conditioner. However, this not only increases the number of parts and the size and weight of the whole unit, but also the existing transmission methods often use mechanical connections, such as belt drive or gear drive. These transmission methods will generate large vibrations and friction during operation, resulting in noise generation and energy loss.

[0037] To solve this technical problem, this utility model proposes an air conditioner.

[0038] Please see Figures 1 to 3In one embodiment of this utility model, the air conditioner includes a casing, a fresh air module, a drive motor 12, and a transmission assembly 30. The casing contains a main fan wheel 11. The fresh air module includes a fresh air housing 22 and a fresh air wheel 21 disposed within the fresh air housing 22, which is connected to the casing. The drive motor 12 is disposed within the fresh air housing 22 and is used to drive the main fan wheel 11. The transmission assembly 30 includes a magnetically coupled drive wheel 31 and at least one driven wheel. The drive wheel 31 is driven and connected to the drive motor 12, and the driven wheel is driven and connected to the fresh air wheel 21. This configuration helps to reduce the size of the air conditioner and, at the same time, reduces the operating noise of the air conditioner.

[0039] In the technical solution of this utility model, the drive motor 12 drives the main fan wheel 11 to rotate, and also drives the fresh fan wheel 21 to rotate through the transmission component 30. At this time, there is no need to equip an additional drive motor 12 to drive the fresh fan wheel 21 separately, saving the installation space required for the drive motor 12 and helping to achieve a compact layout of various components inside the air conditioner. The fresh fan wheel 21 and the drive motor 12 are both located in the fresh air housing 22 of the fresh air module, making full use of the internal space of the fresh air housing 22 and saving the space occupied by the drive motor 12 on the housing. This improves the compactness of the fresh air module and the main fan wheel 11, and helps to shorten the axial dimension of the air conditioner in the main fan wheel 11, thus reducing the volume of the air conditioner.

[0040] The transmission assembly 30 includes a driving wheel 31 and at least one driven wheel with magnetic coupling transmission. The driving wheel 31 is driven by the drive motor 12, and the driven wheel is driven by the fresh air wheel 21. Furthermore, the drive motor 12 is driven by the main air wheel 11, which can drive the main air wheel 11 to rotate. The power of the drive motor 12 can also be transmitted through the magnetic field force between the driving wheel 31 and the driven wheel, driving the fresh air wheel 21 to rotate. Thus, one drive motor 12 can simultaneously drive the main air wheel 11 and the fresh air wheel 21. Since the driving wheel 31 and the driven wheel transmit power through magnetic coupling, compared with traditional mechanical transmission, the driving wheel 31 and the driven wheel do not need to be in direct contact, effectively avoiding friction between the driving wheel 31 and the driven wheel during operation, reducing the operating noise and energy loss of the air conditioner, thereby improving the overall energy efficiency of the air conditioner, and also ensuring the service life and high-precision transmission of the transmission assembly 30 to a certain extent.

[0041] It should be noted that the air conditioner can be configured as an indoor unit of a split-type air conditioner, which can be a wall-mounted indoor unit or a floor-standing indoor unit; the air conditioner can also be configured as a packaged air conditioner.

[0042] The driving wheel 31 and the driven wheel are driven by magnetic coupling. It is understood that both the driving wheel 31 and the driven wheel are provided with magnetic structures, such as permanent magnets with at least a number of different magnetic poles, so as to use the interaction force between the magnetic poles to complete the power transmission between the driving wheel 31 and the driven wheel.

[0043] Specifically, the air conditioner includes a casing, which includes at least a chassis and a front frame. The chassis can be used to install the main fan 11 and the fresh air module, so that the air conditioner has a main fan 11 and a fresh air wheel 21. When the main fan 11 rotates, it can drive airflow into the air conditioner. After air treatment such as heat exchange or dehumidification, the airflow is sent into the room to achieve indoor air conditioning. The fresh air module's fresh air housing 22 can be connected to the casing to complete the assembly of the fresh air module in the air conditioner, ensuring that the air conditioner has a fresh air function. The fresh air module is provided with a fresh air duct and a fresh air wheel 21 located in the fresh air duct. The fresh air duct is connected to the outside through a fresh air pipe and has a fresh air vent 221 that connects to the inside. When the fresh air wheel 21 rotates, it can drive outdoor air into the fresh air duct and send it into the room through the fresh air vent 221 to achieve indoor air renewal and improve indoor air freshness.

[0044] Please see Figures 2 to 3 In this embodiment of the invention, the drive motors 12 are spaced apart around the fresh air impeller 21. In this case, while ensuring that the drive motors 12 and the fresh air impeller 21 do not interfere with each other, the drive motors 12 can be placed as close as possible to the fresh air impeller 21 to reduce the size of the fresh air module. Since the drive motors 12 are located on the periphery of the fresh air impeller 21, they can be spaced apart below, above, or behind the fresh air impeller 21 to ensure that the fresh air impeller 21 delivers outdoor air to the room through the fresh air vent 221, reliably regulating the freshness of the indoor air. Simultaneously, it ensures that the drive motors 12 drive both the main impeller 11 and the fresh air impeller 21. However, this design is not limited to this. In other embodiments, the drive motors 12 can be located on the side of the fresh air impeller 21 closer to the main impeller 11.

[0045] Further, in one embodiment of this utility model, the driving wheel 31 is located outside the fresh air housing 22 and connected between the drive motor 12 and the main impeller 11. It is understood that the drive shaft of the drive motor 12 extends out of the fresh air impeller 21 and is fixedly connected to the driving wheel 31. This drive shaft can also be fixedly connected to the main impeller 11 to drive the main impeller 11. In another embodiment, a driven wheel is connected to the end of the main impeller 11 facing the driving wheel 31. In this case, the power of the drive motor 12 is transmitted to the main impeller 11 through the magnetic field between the driving wheel 31 and the driven wheel, thus driving the main impeller 11. However, this design is not limited to this. In other embodiments, while ensuring the driving effect on the main impeller 11, the driving wheel 31 is located inside the fresh air housing 22. In this case, the driving wheel 31 and the main impeller 11 are located on opposite sides of the same housing wall of the fresh air housing 22.

[0046] Please see Figures 2 to 3 In this embodiment of the invention, two driven wheels are provided, namely a first driven wheel 321 and a second driven wheel 322. The first driven wheel 321 is drivenly connected to the fresh air wheel 21, and the driving wheel 31 is drivenly connected to the first driven wheel 321 through the second driven wheel 322, so that the drive motor 12 can simultaneously drive the main air wheel 11 and the fresh air wheel 21 to rotate. However, this design is not limited to this. In other embodiments, only one driven wheel is provided, or two or more driven wheels are provided.

[0047] Optionally, in one embodiment of this utility model, the first driven wheel 321 is disposed on the periphery of the second driven wheel 322, and a coupling gap 33 is formed between the two surfaces of the first driven wheel 321 and the second driven wheel 322 that are coupled together. It can be understood that since the first driven wheel 321 is disposed on the periphery of the second driven wheel 322, the two surfaces of the second driven wheel 322 and the first driven wheel 321 that are coupled together are the outer peripheral surface of the second driven wheel 322 and the outer peripheral surface of the first driven wheel 321, respectively. Furthermore, to avoid wear and noise caused by mechanical friction between the second driven wheel 322 and the first driven wheel 321, a certain coupling gap 33 is left between the outer peripheral surfaces of the second driven wheel 322 and the first driven wheel 321, while ensuring the transmission effect between them.

[0048] like Figures 1 to 2As shown, the first driven wheel 321 is located outside the fresh air housing 22 and is connected to the fresh air impeller 21 via a first rotating shaft. The second driven wheel 322 is located outside the fresh air housing 22 and is rotatably connected to the fresh air housing 22 or the main housing via a second rotating shaft. Depending on the positional relationship between the drive motor 12 and the fresh air impeller 21, the second driven wheel 322 can be located above, below, or behind the first driven wheel 321. Furthermore, utilizing the magnetic pole interaction force (attraction or repulsion) between the second driven wheel 322 and the first driven wheel 321, the power of the drive motor 12 is sequentially transmitted to the second driven wheel 322 and the first driven wheel 321 via the drive wheel 31, causing the fresh air impeller 21 to rotate together with the first driven wheel 321, drawing outdoor air into the air conditioner. Simultaneously, this ensures that the air conditioner maintains low noise and low wear during operation. However, this design is not limited to this; in other embodiments, the first driven wheel 321 and / or the second driven wheel 322 are located inside the fresh air housing 22.

[0049] Optionally, in another embodiment of this utility model, the first driven wheel 321 is disposed on the end side of the second driven wheel 322, and a coupling gap 33 is formed between the two surfaces of the first driven wheel 321 and the second driven wheel 322 that are coupled together. It can be understood that since the first driven wheel 321 is disposed on the end side of the second driven wheel 322, that is, the first driven wheel 321 is arranged in the axial extension direction of the second driven wheel 322, the two surfaces of the second driven wheel 322 and the first driven wheel 321 that are coupled together are the end face of the second driven wheel 322 and the end face of the first driven wheel 321, respectively. The axes of the second driven wheel 322 and the first driven wheel 321 may coincide or may be offset; this is not limited here. In order to avoid wear and noise caused by mechanical friction between the second driven wheel 322 and the first driven wheel 321, a certain coupling gap 33 is left between the end face of the second driven wheel 322 and the end face of the first driven wheel 321 while ensuring the transmission effect between the second driven wheel 322 and the first driven wheel 321.

[0050] The first driven wheel 321 is connected to the fresh air impeller 21 via a first rotating shaft, or the first driven wheel 321 is fixed to the center of the fresh air impeller 21 by embedding. The second driven wheel 322 is rotatably connected to the fresh air housing 22 or the casing via a second rotating shaft. Based on the positional relationship between the drive motor 12 and the fresh air impeller 21, the magnetic pole interaction force (attraction or repulsion) between the second driven wheel 322 and the first driven wheel 321 is used to transmit the power of the drive motor 12 sequentially to the second driven wheel 322 and the first driven wheel 321 via the drive wheel 31. This causes the fresh air impeller 21 to rotate together with the first driven wheel 321, drawing outdoor air into the air conditioner. Simultaneously, this ensures that the air conditioner maintains low noise and low wear during operation. However, this design is not limited to this. In other embodiments, the first driven wheel 321 is located inside the fresh air housing 22, and the second driven wheel 322 is located outside the fresh air housing 22.

[0051] Optionally, in another embodiment of the present invention, the second driven wheel 322 is provided with a groove for the first driven wheel 321 to be inserted, and a coupling gap 33 is formed between the two surfaces of the first driven wheel 321 and the second driven wheel 322 that are coupled together. It is understood that since the first driven wheel 321 is disposed within the groove of the second driven wheel 322, the two surfaces of the second driven wheel 322 and the first driven wheel 321 that are coupled together are the inner circumferential surface of the second driven wheel 322 and the outer circumferential surface of the first driven wheel 321, respectively. The axes of the second driven wheel 322 and the first driven wheel 321 may coincide or be offset; this is not limited here. In order to avoid wear and noise caused by mechanical friction between the second driven wheel 322 and the first driven wheel 321, a certain coupling gap 33 is left between the inner circumferential surface of the second driven wheel 322 and the outer circumferential surface of the first driven wheel 321 while ensuring the transmission effect between the second driven wheel 322 and the first driven wheel 321.

[0052] The first driven wheel 321 is connected to the fresh air wheel 21 via the first rotating shaft, and the second driven wheel 322 is rotatably connected to the fresh air housing 22 or the casing via the second rotating shaft. According to the positional relationship between the drive motor 12 and the fresh air wheel 21, the magnetic pole interaction force (attraction or repulsion) between the second driven wheel 322 and the first driven wheel 321 is used to transmit the power of the drive motor 12 to the second driven wheel 322 and the first driven wheel 321 in sequence via the drive wheel 31, so that the fresh air wheel 21 rotates together with the first driven wheel 321 and drives the outdoor air into the air conditioner. At the same time, it ensures that the air conditioner maintains low noise and low wear during operation.

[0053] Optionally, in an embodiment of this utility model, the diameter of the first driven wheel 321 is smaller than the diameter of the second driven wheel 322. It is understood that, under the aforementioned different positional relationships between the second driven wheel 322 and the first driven wheel 321, by limiting the diameter of the first driven wheel 321 to be smaller than the diameter of the second driven wheel 322, differential transmission between the second driven wheel 322 and the first driven wheel 321 can be achieved, thereby helping to reduce the power consumption of the drive motor 12, while simultaneously meeting air handling requirements. For example, if the rotational speed of the fresh air impeller 21 is greater than the rotational speed of the main air impeller 11, the freshness of the indoor air can be effectively guaranteed. However, this design is not limited to this; in other embodiments, the diameter of the second driven wheel 322 is smaller than or equal to the diameter of the first driven wheel 321.

[0054] Optionally, in an embodiment of this utility model, the driving wheel 31 is disposed on the periphery of the second driven wheel 322, and a coupling gap 33 is formed between the two surfaces of the driving wheel 31 and the second driven wheel 322 that are coupled together. It can be understood that under the different positional relationships between the second driven wheel 322 and the first driven wheel 321, since the driving wheel 31 is disposed on the periphery of the second driven wheel 322, the two surfaces of the second driven wheel 322 and the driving wheel 31 that are coupled together are the outer peripheral surface of the second driven wheel 322 and the outer peripheral surface of the driving wheel 31, respectively. Furthermore, to avoid wear and noise caused by mechanical friction between the second driven wheel 322 and the driving wheel 31, a certain coupling gap 33 is left between the outer peripheral surface of the second driven wheel 322 and the outer peripheral surface of the driving wheel 31, while ensuring the transmission effect between the second driven wheel 322 and the driving wheel 31.

[0055] Both the drive wheel 31 and the main fan wheel 11 are mounted on the drive shaft of the drive motor 12. At this time, depending on the positional relationship between the drive motor 12 and the fresh fan wheel 21, the drive wheel 31 can be located above, below, or behind the second driven wheel 322. Then, by utilizing the magnetic pole interaction force (attraction or repulsion) between the second driven wheel 322 and the drive wheel 31, the power of the drive motor 12 is transmitted to the drive wheel 31 and the main fan wheel 11. This can drive the fresh fan wheel 21 to rotate through the magnetic field force between the second driven wheel 322 and the first driven wheel 321, allowing outdoor air to enter the air conditioner and refresh the indoor air. It can also cause the main fan wheel 11 to rotate and send the treated air into the room, thereby achieving indoor air conditioning. At the same time, it ensures that the air conditioner maintains low noise and low wear during operation.

[0056] Optionally, in an embodiment of this utility model, both the driving wheel 31 and the driven wheel are magnetic wheels. The coupling gaps 33L formed between the driving wheel 31 and the driven wheel, and between each of the driven wheels, all satisfy: 0.1mm≤L≤2mm. With this setting, while designing the positional relationship between the driving wheel 31 and the first driven wheel 321, and between the first driven wheel 321 and the second driven wheel 322, the coupling gaps 33 between the driving wheel 31 and the first driven wheel 321, and between the first driven wheel 321 and the second driven wheel 322, are reasonably designed to ensure reliable power transmission between the driving wheel 31, the first driven wheel 321 and the second driven wheel 322. At the same time, it effectively reduces the noise and wear caused by mechanical contact between the driving wheel 31, the first driven wheel 321 and the second driven wheel 322, improves the service life of the transmission component 30, and improves the overall energy efficiency of the air conditioner, while reducing maintenance costs.

[0057] The specific values ​​of the coupling gap 33 between the driving wheel 31 and the first driven wheel 321, and between the first driven wheel 321 and the second driven wheel 322, include, but are not limited to, 0.1mm, 0.2mm, 0.4mm, 0.5mm, 0.6mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.8mm, 1.9mm, and 2mm. However, in other embodiments, under the condition of meeting noise reduction and transmission requirements, the coupling gap 33 between the driving wheel 31 and the first driven wheel 321, and between the first driven wheel 321 and the second driven wheel 322, can be greater than 2mm or less than 0.1mm.

[0058] Please see Figure 1 In an embodiment of this utility model, the air conditioner further includes a clutch 40, which is used to cause the driving wheel 31 and the driven wheel to move relative to each other to have a linkage position and a stop position;

[0059] Driven by the drive motor 12, the main fan 11 and the fresh fan 21 rotate synchronously through magnetic coupling at the linkage position, and the fresh fan 21 stops rotating at the stop position. This configuration enables the drive motor 12 to simultaneously drive the main fan 11 and the fresh fan 21 to rotate, thereby achieving indoor air conditioning. Furthermore, the clutch 40 can be used to decouple the main fan 11 and the fresh fan 21, allowing for independent control of the main fan 11 and meeting user needs.

[0060] Specifically, since the driving wheel 31 is connected to the first main impeller 11 via the second driven wheel 322, the magnetic coupling between the driving wheel 31 and the second driven wheel 322 is released by the clutch 40, and / or the magnetic coupling between the first driven wheel 321 and the second driven wheel 322 is released. As a result, under the driving action of the drive motor 12, the main impeller 11 rotates and the new impeller 21 stops rotating.

[0061] Specifically, in this embodiment of the invention, the clutch 40 is drivenly connected to the first driven wheel 321 or the second driven wheel 322, so that the first driven wheel 321 or the second driven wheel 322 is away from the driving wheel 31 and located in the stop position. It is understood that the clutch 40 can be installed by screw connection, snap-fit, or other connection methods, and its installation location includes, but is not limited to, the fresh air housing 22 and the machine housing. The clutch 40 is positioned close to the first driven wheel 321 or the second driven wheel 322 to facilitate its action on the first driven wheel 321 or the second driven wheel 322, causing the first driven wheel 321 to move relative to the second driven wheel 322 and switch between the driven and stop positions, or causing the second driven wheel 322 to move relative to the driving wheel 31 and switch between the driven and stop positions, thereby achieving synchronous rotation control of the driving wheel 31 and the fresh air impeller 21, and independent rotation control of the main impeller 11. However, in other embodiments, the clutch 40 is drivenly connected to the driving wheel 31.

[0062] Specifically, taking the drive connection between clutch 40 and the first driven wheel 321 as an example, when clutch 40 is configured as an electromagnetic clutch 40, when clutch 40 is not energized, the two surfaces of the first driven wheel 321 and the second driven wheel 322 that are coupled together are arranged facing each other; in one embodiment, the first driven wheel 321 is connected to the fresh air wheel 21 through a first rotating shaft, and clutches 40 are spaced apart between the first driven wheel 321 and the fresh air wheel 21, or spaced apart on the side of the first driven wheel 321 away from the fresh air wheel 21, wherein clutches 40 can be in the form of The ring structure is fitted onto the first rotating shaft. When the clutch 40 is energized, the clutch 40 generates an electromagnetic force and attracts the first driven wheel 321 from the linkage position to the stop position. At this time, the first driven wheel 321 is in contact with the clutch 40, and the gap between the first driven wheel 321 and the second driven wheel 322 is greater than the effective coupling gap 33. In other words, the magnetic field force between the first driven wheel 321 and the second driven wheel 322 is invalid, and the power of the drive motor 12 cannot be transmitted to the first driven wheel 321 and the fresh air wheel 21.

[0063] In another embodiment, the clutch 40 is fixed to the fresh air housing 22 and has a push rod extending toward the first driven wheel 321. When the clutch 40 is energized, the electromagnetic force generated by the clutch 40 pushes the push rod to abut against the first driven wheel 321, and the applied thrust moves the first driven wheel 321 from the engaged position to the stopped position. At this time, the gap between the first driven wheel 321 and the second driven wheel 322 is greater than the effective coupling gap 33. In other words, the magnetic field force between the first driven wheel 321 and the second driven wheel 322 is ineffective, and the power of the drive motor 12 cannot be transmitted to the first driven wheel 321 and the fresh air wheel 21. In yet another embodiment, the clutch 40 is configured as a mechanical clutch 40, which can also move the first driven wheel 321 from the engaged position to the stopped position.

[0064] In addition, in order to ensure the synchronous rotation of the first driven wheel 321 and the second driven wheel 322, the air conditioner also includes a reset structure, which can be located in the clutch 40 or installed on the fresh air housing 22, so as to move the first driven wheel 321 from the stop position to the linkage position.

[0065] The aforementioned clutch 40 is also applicable to driving the second driven wheel 322 to switch between the driven position and the stopped position.

[0066] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An air conditioner, characterized in that, include: The casing contains the main impeller. The fresh air module includes a fresh air housing and a fresh air impeller disposed inside the fresh air housing, the fresh air housing being connected to the casing; A drive motor, located within the fresh air housing, is used to drive the main impeller; and The transmission assembly includes a driving wheel with magnetic coupling and at least one driven wheel. The driving wheel is driven and connected to the drive motor, and the driven wheel is driven and connected to the fresh air wheel.

2. The air conditioner as described in claim 1, characterized in that, The drive motors are arranged at intervals around the periphery of the new wind turbine.

3. The air conditioner as described in claim 2, characterized in that, The drive wheel is located outside the fresh air casing and is connected between the drive motor and the main impeller.

4. The air conditioner as described in claim 1, characterized in that, There are two driven wheels, namely a first driven wheel and a second driven wheel. The first driven wheel is connected to the fresh air wheel, and the driving wheel is connected to the first driven wheel through the second driven wheel.

5. The air conditioner as described in claim 4, characterized in that, The first driven wheel is disposed on the periphery of the second driven wheel, and a coupling gap is formed between the two surfaces of the first driven wheel and the second driven wheel that are coupled together; Alternatively, the first driven wheel is disposed on the end side of the second driven wheel, and a coupling gap is formed between the two surfaces of the first driven wheel and the second driven wheel that are coupled together; Alternatively, the second driven wheel is provided with a groove for the first driven wheel to be inserted, and a coupling gap is formed between the two surfaces of the first driven wheel and the second driven wheel that are coupled together.

6. The air conditioner as described in claim 4, characterized in that, The diameter of the first driven wheel is smaller than the diameter of the second driven wheel.

7. The air conditioner as described in claim 4, characterized in that, The driving wheel is located on the periphery of the second driven wheel, and a coupling gap is formed between the two surfaces of the driving wheel and the second driven wheel that are coupled together.

8. The air conditioner as described in any one of claims 1 to 7, characterized in that, Both the driving wheel and the driven wheel are magnetic wheels, and the coupling gap L formed between the driving wheel and the driven wheel, and between each of the driven wheels, satisfies the following condition: 0.1mm≤L≤2mm.

9. The air conditioner as described in claim 4, characterized in that, The air conditioner also includes a clutch, which is used to cause the driving wheel and the driven wheel to move relative to each other to have a driven position and a stopped position; Driven by the drive motor, the main impeller and the new impeller rotate synchronously through magnetic coupling at the linkage position, and the new impeller stops rotating at the stop position.

10. The air conditioner as described in claim 9, characterized in that, The clutch is driven to connect with the first driven wheel or the second driven wheel, so that the first driven wheel or the second driven wheel is away from the driving wheel and is in the stopped position.

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