Air supply device and air conditioning system with same

Abstract

The utility model provides an air supply device and an air conditioning system with the same. The air supply device comprises a wind wheel support, a wind wheel, a driving wheel set, a driven wheel set, an annular transmission device and a gear adjusting device, wherein the wind wheel, the driving wheel set, the driven wheel set, the annular transmission device and the gear adjusting device are rotatably installed on the wind wheel support. The driven wheel group is mounted on the wind wheel; the driving wheel set and the driven wheel set are sleeved with the annular transmission device so that transmission connection can be formed between the driving wheel set and the driven wheel set. The gear adjusting device is configured to tension the annular transmission device; the driving wheel set comprises a plurality of driving wheels which are coaxially arranged, the diameters of the driving wheels are unequal, and the gear adjusting device is further configured to enable the annular transmission device to be switched from one driving wheel to another driving wheel; and / or the driven wheel set comprises a plurality of coaxially arranged driven wheels, the diameters of the driven wheels are unequal, and the gear adjusting device is further configured to enable the annular transmission device to be switched from one driven wheel to another driven wheel, so that the purposes of reducing energy consumption and reducing cost are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air treatment, in particular to an air supply device and an air conditioner system having the same. Background Art

[0002] At present, in a variable air volume air conditioner system (especially a fully air variable air volume air conditioner system), the air supply device mostly adopts a method of directly driving the impeller by a variable frequency motor or a multi-speed motor. As Figure 1 shown, the output end of the variable frequency motor or the multi-speed motor is connected to the impeller through a transmission belt to drive the rotation of the impeller.

[0003] However, the transmission ratio between the existing impeller and the motor is a fixed value. To change the impeller speed, only the motor speed can be adjusted, which will not only increase the energy consumption of the motor, but also increase the temperature rise of the motor, resulting in an increase in the load of the refrigeration unit and further exacerbating the increase in energy consumption. At the same time, the purchase cost, installation cost and maintenance cost of the variable frequency motor or the multi-speed motor are all relatively high, resulting in a relatively high cost of the air supply device using the variable frequency motor or the multi-speed motor. Summary of the Utility Model

[0004] In view of the above problems, the present utility model is proposed to provide an air supply device and an air conditioner system having the same that can overcome the above problems or at least partially solve the above problems, and can solve the problem of high cost caused by the need to change the impeller speed for variable air volume air supply, so as to achieve the purpose of reducing energy consumption and cost.

[0005] Specifically, the present utility model provides an air supply device for an air conditioner system, including an impeller bracket and an impeller rotatably mounted on the impeller bracket. It further includes:

[0006] A driving wheel set, the driving wheel set is rotatably arranged.

[0007] A driven wheel set, the driven wheel set is mounted on the impeller.

[0008] An annular transmission device, the annular transmission device is sleeved on the driving wheel set and the driven wheel set to form a transmission connection between the driving wheel set and the driven wheel set.

[0009] A gear position adjusting device, the gear position adjusting device is configured to tension the annular transmission device. And

[0010] The driving wheel set includes a plurality of driving wheels arranged coaxially, and the diameters of the plurality of driving wheels are not equal. The gear position adjusting device is further configured to switch the annular transmission device from one driving wheel to another driving wheel.

[0011] Optionally, the driven wheel set includes a plurality of coaxially arranged driven wheels, and the diameters of the plurality of driven wheels are different, and the gear adjustment device is further configured to switch the annular transmission device from one of the driven wheels to another.

[0012] Optionally, the gear adjustment device includes a tensioning wheel, which is configured to tension the annular transmission device.

[0013] Optionally, the tensioning wheel is further configured to move axially along the driving wheel set or the driven wheel set.

[0014] Optionally, the gear adjustment device further includes:

[0015] A mounting seat and an adjusting rod, wherein the first end of the adjusting rod is connected to the mounting seat, and the tensioning wheel is rotatably connected to the second end of the adjusting rod.

[0016] Optionally, the adjustment rod is rotatably connected to the mounting seat around a rotation axis parallel to the driving wheel set.

[0017] The adjusting rod is fixedly connected to the mounting seat, and the length between the first end of the adjusting rod and the second end of the adjusting rod is adjustable.

[0018] Optionally, the adjusting rod is configured to move along the axial direction of the driving wheel set or the driven wheel set.

[0019] Optionally, the mounting seat is located inside the annular transmission device and on a line connecting the axes of the driving wheel set and the driven wheel set.

[0020] Optionally, the tensioning wheel is located inside the annular transmission device.

[0021] Optionally, the annular transmission device is a conveyor belt, the tensioning wheel is a groove wheel, and the conveyor belt is located in a groove of the groove wheel.

[0022] Optionally, the annular transmission device is a chain, the tensioning wheel is a sprocket, and the chain is meshingly connected to the sprocket.

[0023] Optionally, when the driving wheel set includes a plurality of coaxially arranged driving wheels, and the driven wheel set includes a plurality of coaxially arranged driven wheels,

[0024] There are two gear adjustment devices, and the two gear adjustment devices are respectively close to the driving wheel set and the driven wheel set.

[0025] The utility model also provides an air conditioning system, comprising:

[0026] The motor and the above-mentioned air supply device, the driving wheel group is transmission-connected to the motor.

[0027] Optionally, the air-conditioning system is a variable air volume air-conditioning system.

[0028] Optionally, the gear adjustment device is configured to control its working state according to indoor temperature and / or indoor humidity.

[0029] In the air supply device of the utility model, the motor drives the driving wheel group to rotate, and drives the driven wheel group to rotate through the annular transmission device, thereby driving the wind wheel to rotate. Due to the different diameters of the driving wheel or the driven wheel, the annular transmission device is mounted on different driving wheels or driven wheels and has different transmission ratios. After the annular transmission device replaces the driving wheel or the driven wheel, the transmission ratio between the driving wheel group and the driven wheel group changes. Even if the speed of the motor remains unchanged, the speed of the driven wheel group also changes, thereby causing the speed of the wind wheel to change. Moreover, when the annular transmission device switches the driving wheel or the driven wheel, the gear adjustment device ensures the tension of the annular transmission device, prevents the annular transmission device from slipping off the driving wheel group or the driven wheel group, and ensures the normal operation of the annular transmission device.

[0030] Compared with changing the speed of the wind wheel through a variable frequency motor or a multi-speed motor, the air supply device avoids the extra energy consumption caused by changing the motor speed, and avoids the increase in the load of the refrigeration unit due to excessive motor temperature. It also reduces the purchase cost, installation cost and maintenance cost of the motor.

[0031] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0033] Figure 1 It is a schematic structural diagram of an air supply device in the prior art;

[0034] Figure 2 is a schematic structural diagram of an air supply device according to an embodiment of the utility model;

[0035] Figure 3 It is a schematic structural diagram of an air supply device according to an embodiment of the utility model.

[0036] List of reference numerals: 100, gear adjustment device; 110, tensioning wheel; 120, adjustment rod; 200, driving wheel group; 210, driving wheel; 300, driven wheel group; 310, driven wheel; 400, annular transmission device; 500, motor; 600, mounting seat; 710, rotating shaft. DETAILED DESCRIPTION

[0037] Refer to the following Figures 2 to 3 To describe the air supply device of the embodiment of the utility model and the air-conditioning system having the same. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0038] Unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0039] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0041] Figure 2 is a schematic structural diagram of an air supply device according to an embodiment of the utility model, such as Figure 2 As shown, and refer to Figure 3 The embodiment of the utility model provides an air supply device for an air conditioning system. The air supply device includes a wind wheel bracket, a wind wheel, a driving wheel group 200, a driven wheel group 300, an annular transmission device 400 and a gear adjustment device 100. The wind wheel is rotatably mounted on the wind wheel bracket. The driving wheel group 200 is rotatably arranged. The driven wheel group 300 is mounted on the wind wheel. The annular transmission device 400 is sleeved on the driving wheel group 200 and the driven wheel group 300 to form a transmission connection between the driving wheel group 200 and the driven wheel group 300. The gear adjustment device 100 is configured to tension the annular transmission device 400. And the driving wheel group 200 includes a plurality of coaxially arranged driving wheels 210, and the diameters of the plurality of driving wheels 210 are different, and the gear adjustment device 100 is also configured to switch the annular transmission device 400 from one driving wheel 210 to another driving wheel 210.

[0042] In this embodiment, the annular transmission device 400 can be an annular closed transmission belt, a transmission chain, etc., to transmit the power of the driving wheel group 200 to the driven wheel group 300. The driving wheel group 200 is connected to the motor 500. After the motor 500 is started, it drives the driving wheel group 200 to rotate, and the rotation of the driving wheel group 200 is driven by the annular transmission device 400, so that the driven wheel group 300 and the driving wheel group 200 rotate at the same linear speed. Preferably, the driven wheel group 300 is fixedly connected to the wind wheel, and the rotation speed of the driven wheel group 300 is equal to the rotation speed of the wind wheel.

[0043] Multiple driving wheels 210 can be arranged in sequence along the axial interval or adjacently according to the diameter size. When the speed of the wind wheel needs to be changed, the gear adjustment device 100 controls the annular transmission device 400 to switch the sleeved driving wheel 210 and tighten the annular transmission device 400 to achieve gear adjustment. Due to the different diameters of the driving wheel 210, different gears have different transmission ratios. After the annular transmission device 400 replaces the sleeved driving wheel 210, the transmission ratio of the driving wheel group 200 and the driven wheel group 300 changes. Even if the speed of the motor 500 remains unchanged, the speed of the driven wheel group 300 also changes, thereby causing the speed of the wind wheel to change, so as to change the air supply volume of the wind wheel. Moreover, when the annular transmission device 400 switches the sleeved driving wheel 210, the gear adjustment device 100 also ensures the tension of the annular transmission device 400, prevents the annular transmission device 400 from slipping off the driving wheel group 200 or the driven wheel group 300, and ensures the normal operation of the annular transmission device 400.

[0044] Compared with the existing air supply device that needs to use a variable frequency motor or a multi-speed motor to change the rotation speed of the wind wheel, the air supply device avoids the energy consumption caused by changing the rotation speed of the motor 500, and avoids the increase of the load of the motor 500 due to the over-high temperature of the motor 500, thereby reducing the energy consumption of the motor 500. It also reduces the purchase cost, installation cost and maintenance cost of the motor 500.

[0045] In some embodiments of the air supply device of the utility model, Figure 2 As shown, the driven wheel set 300 includes a plurality of coaxially arranged driven wheels 310 , and the diameters of the plurality of driven wheels 310 are different. The gear adjustment device 100 is also configured to switch the annular transmission device 400 from one driven wheel 310 to another driven wheel 310 .

[0046] In this embodiment, a plurality of driven wheels 310 can be arranged in sequence in an axially spaced or adjacent manner according to the diameter. When the speed of the wind wheel needs to be changed, the gear adjustment device 100 controls the annular transmission device 400 to switch the sleeved driven wheel 310. Due to the different diameters of the driven wheels 310, after the annular transmission device 400 switches the sleeved driven wheels 310, the transmission ratio of the driving wheel group 200 and the driven wheel group 300 changes. Even if the speed of the motor 500 remains unchanged, the speed of the driven wheel group 300 also changes, thereby causing the speed of the wind wheel to change, thereby achieving the purpose of changing the air volume.

[0047] Compared with changing the speed of the wind wheel by a variable frequency motor or a multi-speed motor, the air supply device avoids the energy consumption caused by changing the speed of the motor 500, and avoids the increase in the load of the refrigeration unit due to the overheating of the motor 500, thereby reducing the energy consumption of the motor 500. It also reduces the purchase cost, installation cost and maintenance cost of the motor 500.

[0048] In some embodiments of the air supply device of the utility model, Figure 2 As shown, the driving wheel group 200 includes a plurality of coaxially arranged driving wheels 210, and the diameters of the plurality of driving wheels 210 are different. The gear adjustment device 100 is also configured to switch the annular transmission device 400 from one driving wheel 210 to another driving wheel 210, and the driven wheel group 300 includes a plurality of coaxially arranged driven wheels 310, and the diameters of the plurality of driven wheels 310 are different. The gear adjustment device 100 is also configured to switch the annular transmission device 400 from one driven wheel 310 to another driven wheel 310.

[0049] In this embodiment, both the driving wheel group 200 and the driven wheel group 300 have a plurality of driving wheels 210 or driven wheels 310 of different diameters. When the fan speed needs to be changed and the gear position needs to be adjusted, the sleeve position of the annular transmission device 400 on the driving wheel group 200 or the driven wheel group 300 can be adjusted separately, or the sleeve positions of the annular transmission device 400 on the driving wheel group 200 and the driven wheel group 300 can be adjusted simultaneously, so that the speed of the wind wheel has more gears to meet the different needs of users and improve the user experience.

[0050] Furthermore, in some embodiments of the air supply device of the utility model, the driving wheel group 200 includes a plurality of coaxially arranged driving wheels 210, and the driven wheel group 300 includes a plurality of coaxially arranged driven wheels 310, and there are two gear adjustment devices 100, which are respectively close to the driving wheel group 200 and the driven wheel group 300.

[0051] In this embodiment, the gear adjustment device 100 close to the driving wheel group 200 adjusts the mounting position of the annular transmission device 400 on the driving wheel group 200, and the gear adjustment device 100 close to the driven wheel group 300 adjusts the mounting position of the annular transmission device 400 on the driven wheel group 300, so that when a single-speed motor 500 is used, the wind wheel still has multiple speeds to meet the different needs of users and improve the user experience.

[0052] In some embodiments of the air supply device of the present invention, the axes of the driving wheel set 200 and the driven wheel set 300 are parallel to each other.

[0053] In this embodiment, the driving wheel group 200 and the driven wheel group 300 rotate in the same direction, which facilitates the annular transmission device 400 to transmit between the driving wheel group 200 and the driven wheel group 300, simplifies the installation of the annular transmission device 400, reduces the installation difficulty for workers, and reduces the installation cost of the annular transmission device 400.

[0054] In some embodiments of the air supply device of the utility model, Figure 2As shown, the gear adjustment device 100 includes a tensioning wheel 110 , and the tensioning wheel 110 is configured to tension the annular transmission device 400 .

[0055] In this embodiment, the length of the annular transmission device 400 is at least enough to be mounted on the driving wheel 210 with the largest diameter in the driving wheel group 200 and the driven wheel 310 with the largest diameter in the driven wheel group 300, and the length is constant. When the gear is adjusted, the diameter of the driving wheel 210 or the driven wheel mounted by the annular transmission device 400 changes, and the annular transmission device 400 mounted on the driving wheel group 200 and the driven wheel group 300 has a tendency to become loose or tight. The tensioning wheel 110 is rollingly connected to the annular transmission device 400 to support or relax the annular transmission device 400 from the outside or inside of the annular transmission device 400, so that the annular transmission device 400 remains in a tensioned state, and the annular transmission device 400 is prevented from sliding off the driving wheel group 200 or the driven wheel group 300, thereby ensuring the normal operation of the annular transmission device 400. Moreover, the tension wheel 110 is rollingly connected to the annular transmission device 400 , which reduces the friction between the annular transmission device 400 and the tension wheel 110 during operation, avoids energy loss caused by friction, and increases the service life of the annular transmission device 400 and the tension wheel 110 .

[0056] In some embodiments of the air supply device of the present invention, the tension wheel 110 is further configured to move along the axial direction of the driving wheel set 200 or the driven wheel set 300 .

[0057] In this embodiment, the axial movement of the tensioning wheel 110 causes the annular transmission device 400 to move axially along the driving wheel group 200 or the driven wheel group 300, so that the annular transmission device 400 switches from one driving wheel 210 to another driving wheel 210, or switches from one driven wheel 310 to another driven wheel 310, so as to change the transmission ratio between the driving wheel group 200 and the driven wheel group 300, thereby playing a role in adjusting the rotation speed of the wind wheel.

[0058] Furthermore, in some embodiments of the air supply device of the present invention, the annular transmission device 400 is a conveyor belt, the tensioning wheel 110 is a groove wheel, and the conveyor belt is located in the groove of the groove wheel.

[0059] In this embodiment, an annular groove is provided on the circumference of the tension wheel 110, and the conveyor belt is clamped in the groove of the groove wheel. In the axial direction of the driving wheel 210 or the driven wheel 310, the groove plays a limiting role on the conveyor belt. When the groove wheel moves along the axial direction of the driving wheel 210 or the driven wheel 310, the conveyor belt is driven to move along the axial direction of the driving wheel 210 or the driven wheel 310 to complete the gear adjustment. Moreover, when the driving wheel group 200 or the driven wheel group 300 rotates at a high speed, the cooperation between the conveyor belt and the driving wheel group 200 or the driven wheel group 300 can extend the service life of the driving wheel group 200, the driven wheel group 300 and the conveyor belt, thereby reducing the use cost.

[0060] Alternatively, in some other embodiments of the air supply device of the present invention, the annular transmission device 400 is a chain, the tensioning wheel 110 is a sprocket, and the chain is meshingly connected with the sprocket.

[0061] In this embodiment, the chain is meshed with the sprocket, and is meshed with the driving wheel set 200 and the driven wheel set 300. In the axial direction of the driving wheel 210 or the driven wheel 310, the sprocket plays a limiting role on the chain. When the sprocket moves along the axial direction of the driving wheel 210 or the driven wheel 310, it drives the chain to move along the axial direction of the driving wheel 210 or the driven wheel 310 to complete the gear adjustment. In addition, the chain is meshed with the driving wheel set 200 and the driven wheel set 300, which reduces the slippage of the chain during the transmission process, so that the transmission efficiency between the driving wheel set 200 and the driven wheel set 300 is high.

[0062] In some embodiments of the air supply device of the utility model, Figure 2 or Figure 3 As shown, the gear adjustment device 100 further includes a mounting seat 600 and an adjustment rod 120. A first end of the adjustment rod 120 is connected to the mounting seat 600, and the tensioning wheel 110 is rotatably connected to a second end of the adjustment rod 120.

[0063] In this embodiment, the mounting seat 600 is fixedly connected to the wind wheel bracket to fix and support the adjusting rod 120. The tensioning wheel 110 adjusts the position of the annular transmission device 400 by moving the adjusting rod 120. The connection structure of the tensioning wheel 110 controlled by the adjusting rod 120 is simple, easy to manufacture and later maintenance, and reduces the cost of production.

[0064] In some embodiments of the air supply device of the utility model, Figure 2 As shown, the adjustment rod 120 is rotatably connected to the mounting seat 600 around a rotation axis 710 parallel to the driving wheel set 200 .

[0065] Furthermore, the adjusting rod 120 rotates around the rotation axis 710 , and the rotation axis 710 is located in the plane where the annular transmission device 400 is located.

[0066] In this embodiment, the first end of the adjusting rod 120 is rotatably connected to the mounting seat 600, and the rotation direction is located in the plane where the annular transmission device 400 is located. The tension pulley 110 at the second end of the adjusting rod 120 is rotatably connected to the annular transmission device 400. The first end of the adjusting rod 120 can be installed on the mounting seat 600 through a torque regulator, and the torque regulator can make the adjusting rod 120 tension the annular transmission device 400 with a preset torque.

[0067] During the gear adjustment process, the annular transmission device 400 switches between the driven wheels 310 or the driving wheels 210. The annular transmission device 400 sleeved on the driving wheel set 200 and the driven wheel set 300 has a tendency to become loose or tight. The first end of the adjusting rod 120 rotates relative to the fixed seat to change the relative position between the tension pulley 110 and the driving wheel set 200 or the driven wheel set 300, so that the annular transmission device 400 remains in a tensioned state to ensure the normal operation of the annular transmission device 400.

[0068] Preferably, in some embodiments of the air supply device of the present invention, such as Figure 2 or Figure 3 as shown, the mounting seat 600 is located inside the annular transmission device 400 and on the connection line of the axes of the driving wheel set 200 and the driven wheel set 300.

[0069] In this embodiment, the mounting seat 600 is located inside the annular transmission device 400, without occupying other extra space, saving the space for arranging the air supply device, and reducing the situation where the mounting seat 600 is knocked, thereby increasing the service life of the mounting seat 600.

[0070] Of course, the mounting seat 600 can also be arranged outside the annular transmission device 400 according to the situation.

[0071] In other embodiments of the air supply device of the present invention, the adjusting rod 120 is fixedly connected to the mounting seat 600, and the length between the first end and the second end of the adjusting rod 120 is adjustable.

[0072] In this embodiment, the first end of the adjusting rod 120 is fixedly connected to the fixed seat, and the tension pulley 110 at the second end of the adjusting rod 120 is rotatably connected to the annular transmission device 400. The adjusting rod 120 can be installed on the mounting seat 600 through a linear tension regulator, and the linear tension regulator can make the adjusting rod 120 tension the annular transmission device 400 with a preset tension.

[0073] During the gear adjustment process, the distance between the second end of the adjusting rod 120 and the first end of the adjusting rod 120 changes to change the relative position of the tensioning wheel 110 and the driving wheel group 200 or the driven wheel group 300, so that the annular transmission device 400 remains in a tensioned state to ensure the normal operation of the annular transmission device 400.

[0074] In some embodiments of the air supply device of the present invention, the adjustment rod 120 is configured to move along the axial direction of the driving wheel set 200 or the driven wheel set 300 .

[0075] In this embodiment, the adjusting rod 120 moves along the axial direction of the driving wheel group 200 or the driven wheel group 300 relative to the fixed seat, and the tensioning wheel 110 is connected to the second section of the adjusting rod 120. When the adjusting rod 120 moves, the tensioning wheel 110 is driven to move, and then the annular transmission device 400 is driven along the axial direction of the driving wheel group 200 or the driven wheel group 300 to achieve gear adjustment. The movement of the tensioning wheel 110 and the annular transmission device 400 is driven by the movement of the adjusting rod 120, which avoids manual adjustment of the position of the annular transmission device 400 and simplifies the difficulty of operation. In addition, the structure of the adjusting rod 120 driving the annular transmission device 400 to move is simple, which is convenient for production and maintenance, so that the cost of production, manufacturing and maintenance is low.

[0076] Of course, in some cases where manual adjustment is required, the annular transmission device 400 can also manually switch the driving wheel set 200 or the driven wheel set 300 provided on the annular transmission device 400 .

[0077] In some embodiments of the air supply device of the utility model, Figure 2 or Figure 3 As shown, the tensioning wheel 110 is located inside the annular transmission 400 .

[0078] In this embodiment, the first end of the adjusting rod 120 is rotatably connected to the mounting seat 600, and the rotation direction is located on the plane where the annular transmission device 400 is located. The tensioning wheel 110 at the second end of the adjusting rod 120 is rotatably connected to the inner side of the annular transmission device 400. During the gear adjustment process, the annular transmission device 400 switches between the driven wheels 310 or the driving wheels 210. The annular transmission device 400 is sleeved on the driving wheel group 200 and the driven wheel group 300 and has a tendency to become loose or tight. The first end of the adjusting rod 120 rotates relative to the fixing seat to change the relative position of the tensioning wheel 110 and the driving wheel group 200 or the driven wheel group 300. The tensioning wheel 110 supports the annular transmission device 400 from the inner side of the annular transmission device 400 to the outside, so that the annular transmission device 400 is kept in a tensioned state to ensure the normal operation of the annular transmission device 400.

[0079] Alternatively, the tensioning wheel 110 may also pull the annular transmission device 400 inward from the inner side of the annular transmission device 400 to keep the annular transmission device 400 in a tensioned state.

[0080] In some embodiments of the air supply device of the present invention, the diameter of the driving wheel 210 is smaller than the diameter of the driven wheel 310 .

[0081] In some embodiments of the air supply device of the present invention, the diameters of the plurality of driving wheels 210 or driven wheels 310 increase or decrease sequentially along the axial direction.

[0082] In this embodiment, the driving wheel 210 or the driven wheel 310 whose diameter increases or decreases successively along the axial direction facilitates the annular transmission device 400 to switch between the driving wheels 210 or the driven wheels 310, thereby reducing the situation where the annular transmission device 400 is stuck between the driving wheels 210 or the driven wheels 310 and affects the normal operation of the air supply device.

[0083] Furthermore, in some embodiments of the air supply device of the present invention, Figure 3 As shown, the driving wheel 210 with a large diameter is close to the motor 500.

[0084] In this embodiment, the driving wheel 210 with a larger diameter is close to the motor 500, and all the driving wheels 210 can be observed from the side of the driving wheel group 200 away from the motor 500, so as to observe the installation and working conditions of the annular transmission device 400. In addition, all the driving wheels 210 can be observed, which is more convenient for the maintenance of the driving wheel group 200 and reduces the difficulty of maintenance.

[0085] The embodiment of the utility model further provides an air conditioning system. In some embodiments of the air conditioning system of the utility model, the air conditioning system comprises a motor 500 and an air supply device in any of the above embodiments, and the driving wheel set 200 is drivingly connected to the motor 500.

[0086] In this embodiment, the driving wheel group 200 is connected to the motor 500 in a transmission manner. After the motor 500 is started, the driving wheel group 200 is driven to rotate, and the driving wheel group 200 is driven by the annular transmission device 400, so that the driven wheel group 300 and the driving wheel group 200 rotate at the same linear speed. Preferably, the driven wheel group 300 is fixedly connected to the wind wheel, and the rotation speed of the driven wheel group 300 is equal to the rotation speed of the wind wheel. When the speed of the wind wheel needs to be changed, the gear adjustment device 100 controls the annular transmission device 400 to switch the sleeved driving wheel 210, and tightens the annular transmission device 400 to complete the gear adjustment. Due to the different diameters of the driving wheel 210, different gears have different transmission ratios. After the annular transmission device 400 replaces the sleeved driving wheel 210, the transmission ratio of the driving wheel group 200 and the driven wheel group 300 changes. Even if the rotation speed of the driving wheel group 200 remains unchanged, the rotation speed of the driven wheel group 300 also changes, thereby causing the rotation speed of the wind wheel to change. Moreover, when the ring-shaped transmission device 400 switches the sleeved driving wheel 210, the gear adjustment device 100 ensures the tension of the ring-shaped transmission device 400, prevents the ring-shaped transmission device 400 from slipping off the driving wheel group 200 or the driven wheel group 300, and ensures the normal operation of the ring-shaped transmission device 400. Compared with changing the speed of the wind wheel by a variable frequency motor or a multi-speed motor, the air supply device avoids the energy consumption caused by changing the speed of the motor 500, and at the same time avoids the increase in the load of the refrigeration unit due to the excessive temperature of the motor 500, so that the energy consumption of the motor 500 is reduced. The purchase cost, installation cost and maintenance cost of the motor 500 are also reduced.

[0087] In some embodiments of the air conditioning system of the present invention, the air conditioning system is a variable air volume air conditioning system.

[0088] In this embodiment, the variable air volume air conditioning system has the ability to control the regional temperature and realize variable frequency energy-saving operation of the fan at partial load, and is suitable for the same air conditioning system, where the cold and hot loads of each air-conditioning zone are different and change greatly, the low-load operation time is long, and the temperature of each air-conditioning zone needs to be controlled separately and the building inner zone needs to deliver cold air all year round, such as high requirements for regional control, high requirements for air quality, high-level office and commercial places, etc. Moreover, the annular transmission device 400 in the air supply device can switch from one driving wheel 210 to another driving wheel 210 or from one driven wheel 310 to another driven wheel 310, thereby realizing the change of the fan speed and reducing the energy consumption caused by changing the fan speed.

[0089] In some embodiments of the air conditioning system of the present invention, the gear adjustment device 100 is configured to control its working state according to the indoor temperature and / or the indoor humidity.

[0090] In this embodiment, a temperature and humidity sensor is provided in the gear adjustment device 100. The gear adjustment device 100 adjusts the annular transmission device 400 according to the signal received by the temperature and humidity sensor, so that the annular transmission device 400 switches from one driving wheel 210 to another driving wheel 210 or switches from one driven wheel 310 to another driven wheel 310, so as to automatically adjust the fan speed and improve the user experience.

[0091] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An air supply device for an air conditioning system, comprising a wind wheel bracket and a wind wheel rotatably mounted on the wind wheel bracket; characterized in that: Also includes: A driving wheel group, wherein the driving wheel group is rotatably arranged; A driven wheel assembly, wherein the driven wheel assembly is mounted on the wind wheel; An annular transmission device, wherein the annular transmission device is sleeved on the driving wheel set and the driven wheel set to form a transmission connection between the driving wheel set and the driven wheel set; a gear adjustment device, the gear adjustment device being configured to tension the annular transmission device; as well as The driving wheel set includes a plurality of coaxially arranged driving wheels, and the diameters of the plurality of driving wheels are different, and the gear adjustment device is further configured to switch the annular transmission device from one driving wheel to another driving wheel; and / or The driven wheel set includes a plurality of coaxially arranged driven wheels, and the diameters of the plurality of driven wheels are different. The gear adjustment device is also configured to switch the annular transmission device from one of the driven wheels to another of the driven wheels.

2. The air supply device according to claim 1, characterized in that: The gear adjustment device includes a tensioning wheel, which is configured to tension the annular transmission device.

3. The air supply device according to claim 2, characterized in that: The tensioning wheel is also configured to move along the axial direction of the driving wheel set or the driven wheel set.

4. The air supply device according to claim 3, characterized in that: The gear adjustment device also includes: Mounting seat; and An adjusting rod, wherein the first end of the adjusting rod is connected to the mounting seat, and the tensioning wheel is rotatably connected to the second end of the adjusting rod.

5. The air supply device according to claim 4, characterized in that: The adjusting rod is rotatably connected to the mounting seat around a rotation axis parallel to the driving wheel set; or The adjusting rod is fixedly connected to the mounting seat, and the length between the first end of the adjusting rod and the second end of the adjusting rod is adjustable.

6. The air supply device according to claim 4, characterized in that: The adjusting rod is configured to move along the axial direction of the driving wheel set or the driven wheel set.

7. The air supply device according to claim 4, characterized in that: The mounting seat is located inside the annular transmission device and on the connecting line of the axes of the driving wheel set and the driven wheel set.

8. The air supply device according to claim 2, characterized in that: The tensioning wheel is located inside the annular transmission device.

9. The air supply device according to claim 2, characterized in that: The annular transmission device is a conveyor belt, the tensioning wheel is a groove wheel, and the conveyor belt is located in a groove of the groove wheel; or The annular transmission device is a chain, the tension wheel is a sprocket, and the chain is meshingly connected with the sprocket.

10. The air supply device according to claim 1, characterized in that: In the case where the driving wheel set includes a plurality of coaxially arranged driving wheels, and the driven wheel set includes a plurality of coaxially arranged driven wheels, There are two gear adjustment devices, and the two gear adjustment devices are respectively close to the driving wheel set and the driven wheel set.

11. An air conditioning system, characterized in that: include: Motor; as well as In the air supply device described in any one of claims 1 to 10, the driving wheel set is drivingly connected to the motor.

12. The air conditioning system according to claim 11, characterized in that: The air conditioning system is a variable air volume air conditioning system; The gear adjustment device is configured to control its working state according to indoor temperature and / or indoor humidity.

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