Air conditioner

Abstract

The invention discloses an air conditioner and relates to the technical field of air conditioners, the air conditioner comprises a machine shell, a fresh air module, a driving motor and a transmission assembly, and a main wind wheel is arranged in the machine shell; the fresh air module is installed on the machine shell, the fresh air module is located at the end of the main wind wheel, and the fresh air module is provided with a fresh air wind wheel; the driving motor is used for driving and connecting one of the main wind wheel and the fresh air wheel; the transmission assembly comprises a first transmission wheel and a second transmission wheel, the first transmission wheel is in transmission connection with the main wind wheel, the second transmission wheel is in transmission connection with the fresh air wind wheel, and the first transmission wheel and the second transmission wheel are in magnetic coupling transmission; according to the technical scheme, the structure of the air conditioner can be simplified, and meanwhile the operation noise of the air conditioner is reduced.

Description

Technical Field

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

[0002] With the integration and improvement of air conditioner functions, air conditioners with fresh air functions are becoming more and more common. In related technologies, for air conditioners with fresh air functions, the fresh air impeller that introduces outdoor air into the room is usually driven by a separate motor. However, this not only increases the number of parts, but also increases the size and weight of the whole unit. Furthermore, the operation of multiple motors also increases the operating noise of the air conditioner. Summary of the Invention

[0003] The main objective of this invention is to propose an air conditioner that simplifies the structure of the air conditioner while reducing its operating noise.

[0004] To achieve the above objectives, the present invention provides an air conditioner comprising:

[0005] The casing contains the main impeller.

[0006] A fresh air module is installed on the housing, the fresh air module is located at the end of the main impeller, and the fresh air module is equipped with a fresh air impeller;

[0007] A drive motor is used to drive one of the main wind turbine and the fresh air wind turbine; and

[0008] The transmission assembly includes a first transmission wheel and a second transmission wheel. The first transmission wheel is connected to the main wind turbine, and the second transmission wheel is connected to the fresh air wind turbine. The first transmission wheel and the second transmission wheel are driven by magnetic coupling.

[0009] In one embodiment, both the first drive wheel and the second drive wheel are configured as magnetic wheels. The first drive wheel and the second drive wheel are arranged radially at intervals along the first drive wheel, and the arrangement gap L satisfies: 0.1mm≤L≤2mm.

[0010] In one embodiment, the magnetic wheel includes a support ring and permanent magnets, with multiple permanent magnets arranged along the outer peripheral surface of the corresponding support ring.

[0011] In one embodiment, the diameter of the first transmission wheel is different from the diameter of the second transmission wheel;

[0012] And / or, the number of permanent magnets on the first transmission wheel is not equal to the number of permanent magnets on the second transmission wheel;

[0013] And / or, the support ring is a non-magnetic ring.

[0014] In one embodiment, the air conditioner further includes a clutch for causing the first drive wheel and the second drive wheel to move relative to each other to have a engaged position and a stopped position;

[0015] Driven by the drive motor, at the linkage position, the main impeller and the fresh air impeller rotate synchronously through magnetic coupling, and at the stop position, one of the main impeller and the fresh air impeller stops rotating.

[0016] In one embodiment, at the stopped position, the second drive wheel and the first drive wheel are offset from each other axially from the first drive wheel.

[0017] In one embodiment, the clutch is driven to connect to the second transmission wheel;

[0018] The drive motor is located between the main impeller and the fresh air impeller, and the drive motor is driven to connect between the main impeller and the first transmission wheel;

[0019] Alternatively, the drive motor is connected to the side of the main impeller away from the fresh air impeller.

[0020] In one embodiment, a push rod is connected between the second drive wheel and the clutch, and the clutch pushes the second drive wheel through the push rod to switch the second drive wheel to the stop position.

[0021] In one embodiment, the air conditioner further includes a reset structure located on the side of the second transmission wheel opposite to the push rod.

[0022] In one embodiment, the drive motor is connected to the fresh air impeller, and the clutch is connected to the first transmission wheel.

[0023] In one embodiment, the clutch is configured as an electromagnetic clutch.

[0024] In one embodiment, the air conditioner is configured as a modular air conditioner or a split air conditioner, or the air conditioner is configured as the indoor unit of a split air conditioner.

[0025] In the technical solution of this invention, a drive motor provides a power source to the main fan wheel or the fresh air fan wheel. Furthermore, by using a first transmission wheel and a second transmission wheel for magnetic coupling, the main fan wheel and the fresh air fan wheel rotate synchronously through a transmission assembly. This achieves synchronous drive of the main fan wheel and the fresh air fan wheel by a single drive motor. This configuration eliminates the need for an additional motor to drive the fresh air fan wheel, saving space and simplifying the internal structure of the air conditioner, while also reducing operating noise. On the other hand, the magnetic coupling between the first and second transmission wheels enables synchronous rotation of the main fan wheel and the fresh air fan wheel, avoiding noise associated with traditional mechanical transmission connections. This further reduces the operating noise of the air conditioner and allows the transmission assembly to have a longer lifespan and higher transmission accuracy, thus improving the transmission reliability of the air conditioner. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of an air conditioner according to an embodiment of the present invention after the casing has been removed;

[0028] Figure 2 for Figure 1 A schematic diagram of the structure of the fresh air module, drive motor and main impeller working together;

[0029] Figure 3 This is a schematic diagram of the structure of the main wind turbine, drive motor and fresh air wind turbine, with the drive motor located between the main wind turbine and the fresh air wind turbine;

[0030] Figure 4 This is a schematic diagram of the structure of the main wind turbine, drive motor and fresh air wind turbine, with the drive motor located on the side of the main wind turbine away from the fresh air wind turbine;

[0031] Figure 5 This is a schematic diagram of the transmission assembly and clutch, with the transmission assembly in the linked position;

[0032] Figure 6 This is a schematic diagram of the transmission assembly and clutch, with the transmission assembly in a stopped position.

[0033] Figure 7 This represents the positional relationship between the first transmission wheel and the second rotating wheel.

[0034] Explanation of icon numbers:

[0035] 10. Main fan wheel; 20. Fresh air module; 21. Fresh air impeller; 22. Fresh air outlet; 30. Drive motor; 40. Transmission assembly; 41. First transmission wheel; 42. Second transmission wheel; 431. Permanent magnet; 432. Support ring; 50. Clutch; 51. Push rod; 60. Heat exchanger.

[0036] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications 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 indications will also change accordingly.

[0039] Furthermore, if the embodiments of this invention 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. Thus, 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 invention.

[0040] With the integration and improvement of air conditioner functions, air conditioners with fresh air functions are becoming more and more common. In related technologies, for air conditioners with fresh air functions, the fresh air impeller that introduces outdoor air into the room is usually driven by a separate motor. However, this not only increases the number of parts, but also increases the size and weight of the whole unit. Furthermore, the operation of multiple motors also increases the operating noise of the air conditioner.

[0041] To address this technical problem, the present invention proposes an air conditioner.

[0042] Please see Figures 1 to 7 In one embodiment of the present invention, the air conditioner includes a casing, a fresh air module 20, a drive motor 30, and a transmission assembly 40. A main fan 10 is disposed within the casing. The fresh air module 20 is installed in the casing and located at the end of the main fan 10. The fresh air module 20 includes a fresh air impeller 21. The drive motor 30 drives one of the main fan 10 and the fresh air impeller 21. The transmission assembly 40 includes a first transmission wheel 41 and a second transmission wheel 42. The first transmission wheel 41 is connected to the main fan 10, and the second transmission wheel 42 is connected to the fresh air impeller 21. The first transmission wheel 41 and the second transmission wheel 42 are driven by magnetic coupling. This simplifies the structure of the air conditioner and reduces its operating noise.

[0043] In the technical solution of this invention, the drive motor 30 provides a power source to the main fan 10 or the fresh air fan 21. Furthermore, the main fan 10 and the fresh air fan 21 rotate synchronously via the transmission assembly 40 through magnetic coupling using the first transmission wheel 41 and the second transmission wheel 42. This achieves synchronous drive of the main fan 10 and the fresh air fan 21 by the drive motor 30. This configuration eliminates the need for an additional motor to drive the fresh air fan 21, saving space and simplifying the internal structure of the air conditioner, while also reducing operating noise. Furthermore, the magnetic coupling of the first transmission wheel 41 and the second transmission wheel 42 enables synchronous rotation of the main fan 10 and the fresh air fan 21, avoiding noise associated with traditional mechanical transmission connections. This further reduces operating noise and allows the transmission assembly 40 to have a longer lifespan and higher transmission accuracy, thus improving the transmission reliability of the air conditioner.

[0044] Specifically, the air conditioner has a main fan 10 and a heat exchanger 60. When the main fan 10 rotates, it can drive airflow into the air conditioner. After the airflow exchanges heat with the heat exchanger 60, it forms a heat exchange airflow and is introduced into the room. When the air conditioner is in cooling mode, the heat exchanger 60 is an evaporator used to generate cold air. When the air conditioner is in heating mode, the heat exchanger 60 is a condenser used to generate hot air, thereby achieving indoor air conditioning. This air conditioning may include, but is not limited to, adjusting the indoor temperature and adjusting the indoor humidity. When the air conditioner has a fresh air module 20, a fresh air duct is formed in the fresh air module 20. The air inlet of the fresh air duct is connected to the outside, and the fresh air outlet 22 is connected to the inside. When the fresh air fan 21 rotates, the fresh air is processed by the fresh air module 20 or the outdoor equipment, and then delivered to the room through the fresh air duct and the fresh air outlet 22 to improve the freshness of the indoor air.

[0045] While ensuring reliable transmission between the main impeller 10 and the fresh air impeller 21 via the transmission assembly 40, the fresh air module 20 can be connected to the housing via its housing to achieve a side-by-side connection between the fresh air module 20 and the housing. Alternatively, the housing of the fresh air module 20 can be part of the housing, with the fresh air impeller 21 built into the housing. The drive motor 30 can be connected to the housing, installed on the housing of the fresh air module 20, or connected to both the housing and the housing of the fresh air module 20.

[0046] The output end of the drive motor 30 is connected to one of the main impeller 10 and the fresh air impeller 21. At this time, the other of the main impeller 10 and the fresh air impeller 21 is connected via a transmission assembly 40 to complete the power transmission. The transmission assembly 40 includes a first transmission wheel 41 and a second transmission wheel 42. The first transmission wheel 41 is connected to the main impeller 10 via a shared shaft. The second transmission wheel 42 is connected to the fresh air impeller 21 via a shared shaft. To avoid noise caused by friction and wear in traditional mechanical transmission connections, the first transmission wheel 41... The first transmission wheel 41 and the second transmission wheel 42 transmit power through magnetic coupling. That is, the torque and power are transmitted between the first transmission wheel 41 and the second transmission wheel 42 by using the attraction or repulsion between the magnetic forces. In this process, the transmission between the first transmission wheel 41 and the second transmission wheel 42 is a non-contact transmission. Compared with the first transmission wheel 41 and the second transmission wheel 42 using transmission methods such as belt drive or meshing drive, it effectively avoids mechanical wear and noise between the first transmission wheel 41 and the second transmission wheel 42, further improves the operating noise of the air conditioner, and can also meet the high-precision transmission between the first transmission wheel 41 and the second transmission wheel 42.

[0047] Please see Figure 7In an embodiment of the present invention, both the first transmission wheel 41 and the second transmission wheel 42 are configured as magnetic wheels. The first transmission wheel 41 and the second transmission wheel 42 are arranged radially at intervals along the first transmission wheel 41, and the arrangement gap L satisfies: 0.1mm≤L≤2mm. It can be understood that configuring the first transmission wheel 41 and the second transmission wheel 42 as magnetic wheels allows the magnetic forces generated by the first transmission wheel 41 and the second transmission wheel 42 to attract and repel each other, realizing magnetic field coupling and completing the transmission of torque and power. In the radial direction of the first transmission wheel 41 and the second transmission wheel 42, the first transmission wheel 41 and the second transmission wheel 42 are arranged side by side, and an arrangement gap is formed between the first transmission wheel 41 and the second transmission wheel 42, that is, an arrangement gap is formed between their outer surfaces. In this way, interference between the first transmission wheel 41 and the second transmission wheel 42 during transmission can be avoided, which would generate unnecessary noise and extend the service life of the transmission assembly 40. At the same time, it ensures the reliability and stability of the synchronous rotation of the main fan wheel 10 and the fresh air fan wheel 21. However, in other embodiments, the first transmission wheel 41 and the second transmission wheel 42 may be coaxially arranged.

[0048] Specifically, when the spacing between the first and second transmission wheels is less than 0.1 mm, they are too close together, and the magnetic fields generated by them are prone to mutual interference, which is detrimental to the normal transmission of the transmission assembly 40. This can also lead to magnetic saturation, preventing the magnetic field strength from increasing further and affecting torque transmission efficiency. Furthermore, it can cause poor heat dissipation, leading to demagnetization of the permanent magnet 431 on the magnetic wheel and reducing its lifespan. When the spacing is greater than 2 mm, the first and second transmission wheels are too far apart, and their magnetic fields are too close together. The magnetic field generated by the transmission component is not easily coupled, which can easily affect the normal operation and performance of the transmission component 40 and also increase the space occupied by the transmission component 40. Therefore, the arrangement gap between the first transmission wheel 41 and the second transmission wheel 42 is limited to between 0.1mm and 2mm. By rationally designing the gap between the first transmission wheel 41 and the second transmission wheel 42, the reliable transmission of torque and power between the first transmission wheel 41 and the second transmission wheel 42 can be ensured while reducing noise during the transmission process. At the same time, heat dissipation during the transmission process can be ensured, reducing the possibility of demagnetization and improving the service life of the transmission component 40.

[0049] The specific values ​​of the arrangement gap between the first transmission wheel 41 and the second transmission wheel 42 include, but are not limited to, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, and 2mm. However, in other embodiments, while meeting noise reduction and transmission requirements, the arrangement gap between the first transmission wheel 41 and the second transmission wheel 42 is greater than 2mm or less than 0.1mm.

[0050] Specifically, in an embodiment of the present invention, the magnetic wheel includes a support ring 432 and permanent magnets 431. Multiple permanent magnets 431 are arranged along the outer circumferential surface of the corresponding support ring 432. It is understood that having multiple permanent magnets 431 outside the support ring 432 enables the magnetic wheel to generate a magnetic field. The connection methods between the permanent magnets 431 and the support ring 432 include, but are not limited to, bonding and embedding, ensuring the integration of the permanent magnets 431 and the support ring 432 and improving the assembly efficiency of the magnetic wheel. The support ring 432 is a non-magnetic ring, serving as a carrier for the permanent magnets 431, facilitating the passage of the magnetic wheel through the support ring 432. 2. It is connected to the main impeller 10 or the fresh air impeller 21 for transmission, without affecting the generation of the magnetic field, ensuring the coupling transmission between the first transmission wheel 41 and the second transmission wheel 42. Specifically, when the first transmission wheel 41 and the main impeller 10 are connected through the first rotating shaft, the support ring 432 of the first transmission wheel 41 is sleeved on the first rotating shaft; when the second transmission wheel 42 and the fresh air impeller 21 are connected through the second rotating shaft, the support ring 432 of the second transmission wheel 42 is sleeved on the second rotating shaft. The materials used for the support ring 432 include, but are not limited to, plastic, aluminum alloy, and stainless steel; the magnetic materials of the permanent magnet 431 include, but are not limited to, neodymium iron boron, ferrite, and samarium cobalt. Figure 7 As shown, the magnetic wheel is provided with multiple permanent magnets 431. The permanent magnets 431 with cross-sections in the figure have the same magnetic poles, and the permanent magnets 431 without cross-sections have the same magnetic poles. By alternating permanent magnets 431 with different magnetic poles (N / S poles), it is helpful to achieve effective torque transmission.

[0051] Optionally, in an embodiment of the present invention, the diameter of the first transmission wheel 41 is different from the diameter of the second transmission wheel 42. It is understood that by utilizing the unequal diameters of the first transmission wheel 41 and the second transmission wheel 42, the transmission ratio can be changed to meet the different speed and driving force requirements of the main impeller 10 and the fresh air impeller 21, thereby satisfying different air treatment needs; for example, as... Figure 3 and Figure 4As shown, in one embodiment, when the first transmission wheel 41 acts as the driving wheel in the transmission process, or when the second transmission wheel 42 acts as the driving wheel in the transmission process, the diameter of the first transmission wheel 41 can be larger than the diameter of the second transmission wheel 42. In this case, the rotational speed of the fresh air impeller 21 is greater than the rotational speed of the main impeller 10, which can effectively ensure the freshness of the indoor air. In another embodiment, when the first transmission wheel 41 acts as the driving wheel in the transmission process, or when the second transmission wheel 42 acts as the driving wheel in the transmission process, the diameter of the first transmission wheel 41 can be smaller than the diameter of the second transmission wheel 42. In this case, the rotational speed of the fresh air impeller 21 is less than the rotational speed of the main impeller 10, which can effectively ensure the rapid adjustment of the indoor air temperature while ensuring air circulation. However, in other embodiments, the first transmission wheel 41 and the second transmission wheel 42 are set with equal diameters.

[0052] Optionally, in embodiments of the present invention, the number of permanent magnets 431 on the first transmission wheel 41 and the number of permanent magnets 431 on the second transmission wheel 42 are different. It is understood that by utilizing the difference in the number of permanent magnets 431 on the first transmission wheel 41 and the second transmission wheel 42, the torque transmission capability and transmission precision between the first transmission wheel 41 and the second transmission wheel 42 can be directly and effectively changed; for example, as... Figure 7 As shown, in one embodiment, the number of permanent magnets 431 on the first transmission wheel 41 is greater than the number of permanent magnets 431 on the second transmission wheel 42. The first transmission wheel 41 can generate a stronger magnetic field. When the first transmission wheel 41 acts as the driving wheel, it can provide a greater force to the second transmission wheel 42, improving the transmission efficiency of the transmission assembly 40. Furthermore, the greater number of permanent magnets 431 on the first transmission wheel 41 helps improve the magnetic field distribution on the first transmission wheel 41, enhancing the rotational smoothness of the first transmission wheel 41 and thus reducing noise in the transmission assembly 40 during transmission. However, in other embodiments, both the first transmission wheel 41 and the second transmission wheel 42 have permanent magnets 431.

[0053] Please see Figures 5 to 6 In an embodiment of the present invention, the air conditioner further includes a clutch 50, which is used to cause the first transmission wheel 41 and the second transmission wheel 42 to move relative to each other to have a linkage position and a stop position. Under the drive of the drive motor 30, in the linkage position, the main fan wheel 10 and the fresh air fan wheel 21 rotate synchronously through magnetic coupling, and in the stop position, one of the main fan wheel 10 and the fresh air fan wheel 21 stops rotating. With this configuration, a single drive motor 30 can be used to drive both the main fan wheel 10 and the fresh air fan wheel 21 simultaneously, and the clutch 50 can be used to achieve independent control of either the main fan wheel 10 or the fresh air fan wheel 21, thus meeting the user's needs.

[0054] Understandably, since the first transmission wheel 41 is connected to the main fan wheel 10 and the second transmission wheel 42 is connected to the fresh air fan wheel 21, the clutch 50 can release the magnetic coupling between the first transmission wheel 41 and the second transmission wheel 42, so that the main fan wheel 10 or the fresh air fan wheel 21 that is not connected to the drive motor 30 can stop rotating, while the fresh air fan wheel 21 or the main fan wheel 10 that is connected to the drive motor 30 can continue to rotate, thus achieving the purpose of independent control.

[0055] The housing includes a front shell and a rear shell that are covered together. The rear shell is used to install the main impeller 10. Since the transmission assembly 40 is located between the main impeller 10 and the fresh air impeller 21, in order to ensure that the clutch 50 reliably drives the first transmission wheel 41 or the second transmission wheel 42, the clutch 50 is located close to the first transmission wheel 41 or the second transmission wheel 42. That is, the installation of the clutch 50 can utilize the space near the first transmission wheel 41 and the second transmission wheel 42. In other words, the rear shell and the housing of the fresh air module 20 can serve as a mounting platform for the clutch 50 to ensure that the clutch 50 can separate the transmission assembly 40. The connection method between the clutch 50 and the mounting platform includes, but is not limited to, welding, snap-fit, and screw connection.

[0056] Specifically, in the embodiments of the present invention, at the stop position, the second transmission wheel 42 and the first transmission wheel 41 are offset in the axial direction of the first transmission wheel 41. It can be understood that the first transmission wheel 41 and the second transmission wheel 42 are arranged side by side in the radial direction of the first transmission wheel 41. At this time, the orthographic projections of the first transmission wheel 41 and the second transmission wheel 42 in the radial direction of the first transmission wheel 41 coincide, ensuring that when one of the first transmission wheel 41 and the second transmission wheel 42 is rotated by the drive motor 30, the other one rotates synchronously under the action of magnetic coupling. The clutch 50 can make the orthographic projections of the first transmission wheel 41 and the second transmission wheel 42 in the radial direction of the first transmission wheel 41 not coincide. At this time, because the relative position of the first transmission wheel 41 and the second transmission wheel 42 exceeds the deviation range allowed by the interaction between the magnetic fields, the torque between the first transmission wheel 41 and the second transmission wheel 42 cannot be effectively transmitted. Therefore, only the drive control of the main fan wheel 10 or the fresh air fan wheel 21 can be realized to meet the drive requirements and air conditioning requirements.

[0057] Please see Figure 3 and Figure 4 In an embodiment of the present invention, the clutch 50 drives the second transmission wheel 42; that is, the clutch 50 acts on the second transmission wheel 42, causing the second transmission wheel 42 to move relative to the first transmission wheel 41 and switch between the linkage position and the stop position, thereby realizing the synchronous rotation of the fresh air impeller 21 and the main impeller 10, and the independent control of the main impeller 10.

[0058] like Figure 3As shown, the drive motor 30 is located between the main impeller 10 and the fresh air impeller 21, and the drive motor 30 is driven and connected between the main impeller 10 and the first transmission wheel 41. At this time, the drive motor 30 has a first output shaft and a second output shaft. The first output shaft is driven and connected to the axis of the main impeller 10, and the second output shaft passes through the axis of the first transmission wheel 41. Alternatively, the drive motor 30 has a single output shaft, which includes a first section and a second section. The first section is fitted with the first transmission wheel 41, and the end of the second section away from the first section is connected to the main impeller 10. This allows for the reasonable use of the installation space between the main impeller 10 and the fresh air impeller 21, achieving a compact design and reliable transmission between the various structures within the casing.

[0059] like Figure 4 As shown, the drive motor 30 is connected to the side of the main impeller 10 away from the fresh air impeller 21. At this time, the drive motor 30 has a single output shaft, which is connected to the shaft of the main impeller 10. This makes reasonable use of the installation space on the side of the main impeller 10 away from the fresh air module 20. At the same time, it can reduce the distance between the fresh air impeller 21 and the main impeller 10, so that the fresh air impeller 21, the transmission component 40 and the main impeller 10 are compactly connected, thereby improving the reliability of the transmission.

[0060] Please see Figures 5 to 6 In an embodiment of the present invention, a push rod 51 is connected between the second transmission wheel 42 and the clutch 50. The clutch 50 pushes the second transmission wheel 42 through the push rod 51, causing the second transmission wheel 42 to switch to the stop position. It can be understood that by using the push rod 51 to abut against the surface of the second transmission wheel 42 facing the push rod 51, the push force applied to the push rod 51 by the clutch 50 causes the second transmission wheel 42 to translate along its axis to the stop position, thereby achieving the separation of the second transmission wheel 42 and the first transmission wheel 41, that is, exceeding the range of interaction between magnetic fields. Thus, when the main fan wheel 10 rotates under the action of the drive motor 30, the magnetic coupling between the first transmission wheel 41 and the second transmission wheel 42 fails, and the first transmission wheel 41 cannot drive the second transmission wheel 42 to rotate. At this time, the fresh air fan wheel 21 is in a stop state.

[0061] To ensure the smooth movement of the second transmission wheel 42 and the synchronous rotation of the first transmission wheel 41 and the second transmission wheel 42, in this embodiment of the invention, the air conditioner further includes a reset structure. The reset structure is located on the side of the second transmission wheel 42 away from the push rod 51. It can be understood that during the translation of the second transmission wheel 42, the side of the reset structure facing the second transmission wheel 42 always abuts against the surface of the second transmission wheel 42. At this time, under the pushing action of the clutch 50 on the push rod 51, the push rod 51 always abuts against the surface of the second transmission wheel 42, and the second transmission wheel 42 can move smoothly along the axis of the second transmission wheel 42, completing the misalignment of the second transmission wheel 42 and the first transmission wheel 41.

[0062] When it is necessary to realign the first drive wheel 41 and the second drive wheel 42, the reset structure acts as a reset mechanism. Thus, when the pushing force of the push rod 51 on the second drive wheel 42 is removed, the second drive wheel 42 moves back to the linkage position under the reverse drive of the reset structure, waiting for the first drive wheel 41 to drive it. The reset structure can be configured as, for example, an elastic reset element of a spring or other structural components that can achieve reset.

[0063] Optionally, in an embodiment of the present invention, the drive motor 30 is connected to the fresh air impeller 21, and the clutch 50 is connected to the first transmission wheel 41. That is, the clutch 50 acts on the first transmission wheel 41, causing the first transmission wheel 41 to move relative to the second transmission wheel 42 and switch between the linkage position and the stop position, thereby realizing the synchronous rotation of the fresh air impeller 21 and the main impeller 10, and the independent control of the fresh air impeller 21.

[0064] The drive motor 30 is located between the main impeller 10 and the fresh air impeller 21, and is driven between the fresh air impeller 21 and the second transmission wheel 42; or, the drive motor 30 is connected to the side of the fresh air impeller 21 away from the main impeller 10, so as to achieve a compact design and reliable transmission between the various structures.

[0065] Similarly, in order to ensure the smooth movement of the first transmission wheel 41 and the synchronous rotation of the first transmission wheel 41 and the second transmission wheel 42, in an embodiment of the present invention, the clutch 50 pushes the first transmission wheel 41 through the push rod 51, so that the first transmission wheel 41 switches to the stop position. Furthermore, the air conditioner also includes a reset structure, which is located on the side of the first transmission wheel 41 away from the push rod 51. This ensures the reliable misalignment and alignment of the first transmission wheel 41 and the second transmission wheel 42, thereby achieving the synchronous rotation of the main fan wheel 10 and the fresh air fan wheel 21 and the independent control of the fresh air fan wheel 21.

[0066] Optionally, in an embodiment of the present invention, the clutch 50 is configured as an electromagnetic clutch 50. It can be understood that, taking the drive motor 30 connected to the main impeller 10 and the clutch 50 used to move the second transmission wheel 42 as an example, ... Figure 5 As shown, when the clutch 50 is in a non-operating state, the first transmission wheel 41 and the second transmission wheel 42 are aligned. At this time, the power of the drive motor 30 is transmitted to the fresh air impeller 21 through the magnetic coupling between the first transmission wheel 41 and the second transmission wheel 42, and the fresh air impeller 21 and the main impeller 10 rotate synchronously; Figure 6 As shown, when the clutch 50 is energized, the electromagnetic force generated by the clutch 50 pushes the push rod 51 out, which then abuts against the surface of the second transmission wheel 42 facing the push rod 51. Under the pushing action of the push rod 51, the second transmission wheel 42 is in a stopped position, offset from the position of the first transmission wheel 41. At this time, the magnetic coupling between the first transmission wheel 41 and the second transmission wheel 42 is realized. The first transmission wheel 41 cannot drive the second transmission wheel 42, that is, the torque cannot be effectively transmitted to the second transmission wheel 42. Only the drive control of the main fan wheel 10 can be realized, and the fresh air fan wheel 21 stops rotating, thus meeting the air conditioning requirements. However, in other embodiments, the clutch 50 can also be configured as other mechanical clutches 50.

[0067] Please see Figure 1 In one embodiment of the present invention, the air conditioner is configured as a split-type air conditioner, wherein the indoor unit can be a wall-mounted indoor unit or a floor-standing indoor unit; in another embodiment of the present invention, the air conditioner is configured as a modular air conditioner, wherein the modular air conditioner can be an indoor cabinet air conditioner or a window-type integrated air conditioner; in yet another embodiment of the present invention, the air conditioner is configured as the indoor unit of a split-type air conditioner, wherein the split-type air conditioner includes two devices: an indoor unit and an outdoor unit.

[0068] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An air conditioner, characterized in that, include: The casing contains the main impeller. A fresh air module is installed on the housing, the fresh air module is located at the end of the main impeller, and the fresh air module is equipped with a fresh air impeller; A drive motor is used to drive one of the main wind turbine and the fresh air wind turbine; as well as The transmission assembly includes a first transmission wheel and a second transmission wheel. The first transmission wheel is connected to the main wind turbine, and the second transmission wheel is connected to the fresh air wind turbine. The first transmission wheel and the second transmission wheel are driven by magnetic coupling.

2. The air conditioner as described in claim 1, characterized in that, Both the first transmission wheel and the second transmission wheel are configured as magnetic wheels. The first transmission wheel and the second transmission wheel are arranged at radial intervals along the first transmission wheel, and the arrangement gap L formed satisfies: 0.1mm≤L≤2mm.

3. The air conditioner as described in claim 2, characterized in that, The magnetic wheel includes a support ring and permanent magnets, with multiple permanent magnets arranged along the outer circumferential surface of the corresponding support ring.

4. The air conditioner as described in claim 3, characterized in that, The diameter of the first transmission wheel is different from the diameter of the second transmission wheel; And / or, the number of permanent magnets on the first transmission wheel is not equal to the number of permanent magnets on the second transmission wheel; And / or, the support ring is a non-magnetic ring.

5. The air conditioner as described in claim 1, characterized in that, The air conditioner also includes a clutch, which is used to cause the first drive wheel and the second drive wheel to move relative to each other to have a linkage position and a stop position; Driven by the drive motor, at the linkage position, the main impeller and the fresh air impeller rotate synchronously through magnetic coupling, and at the stop position, one of the main impeller and the fresh air impeller stops rotating.

6. The air conditioner as described in claim 5, characterized in that, At the stop position, the second transmission wheel and the first transmission wheel are offset from each other axially from the first transmission wheel.

7. The air conditioner as described in claim 5, characterized in that, The clutch drives the second transmission wheel; The drive motor is located between the main impeller and the fresh air impeller, and the drive motor is driven to connect between the main impeller and the first transmission wheel; Alternatively, the drive motor is connected to the side of the main impeller away from the fresh air impeller.

8. The air conditioner as described in claim 7, characterized in that, A push rod is connected between the second drive wheel and the clutch. The clutch pushes the second drive wheel through the push rod, causing the second drive wheel to switch to the stop position.

9. The air conditioner as described in claim 8, characterized in that, The air conditioner also includes a reset structure, which is located on the side of the second transmission wheel away from the push rod.

10. The air conditioner as described in claim 5, characterized in that, The drive motor is connected to the fresh air impeller, and the clutch is connected to the first transmission wheel.

11. The air conditioner as described in claim 5, characterized in that, The clutch is configured as an electromagnetic clutch.

12. The air conditioner as described in claim 1, characterized in that, The air conditioner is configured as a modular air conditioner or a split air conditioner, or the air conditioner is configured as the indoor unit of a split air conditioner.

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