Base assembly and air conditioner

Abstract

The present invention provides a base assembly and an air conditioner, and specifically relates to the technical field of air conditioners. The base assembly of the present invention includes an upper base assembly, a lower base assembly and a belt transmission assembly, the upper base assembly and the lower base assembly are detachably connected, the belt transmission assembly includes a first transmission wheel, a transmission belt and at least two second transmission wheels, the first transmission wheel is rotatably connected to the lower base assembly, the second transmission wheel is rotatably connected to the upper base assembly, and all the first transmission wheels and the second transmission wheels are connected through transmission belt transmission. Therefore, when the upper base assembly and the lower base assembly are installed together, the first transmission wheel and the second transmission wheel are respectively matched with the transmission belt; when the upper base assembly and the lower base assembly are disassembled, the tensioning match between the first transmission wheel and the second transmission wheel and the transmission belt is released. Avoid unnecessary trouble caused by disassembling the transmission mechanism after disassembling the upper base assembly and the lower base assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a base assembly and an air conditioner. Background Art

[0002] Currently, in order to facilitate cleaning, the upper base assembly and the lower base assembly in the air conditioner can be disassembled. However, the transmission mechanism of the fan is usually installed on the lower base. In order to disassemble and clean the fan, the fan transmission mechanism needs to be disassembled in advance after the lower base is disassembled, which causes unnecessary trouble. Summary of the invention

[0003] The present invention aims to solve the technical problem in the prior art to a certain extent that unnecessary trouble is caused by disassembling the transmission mechanism when disassembling the fan.

[0004] To solve the above problems, the present invention provides a base assembly, including an upper base assembly, a lower base assembly and a belt drive assembly, wherein the upper base assembly and the lower base assembly are detachably connected, and the belt drive assembly includes a first transmission wheel, a transmission belt and at least two second transmission wheels, the first transmission wheel is rotatably connected to the lower base assembly, the second transmission wheel is rotatably connected to the upper base assembly, and all of the first transmission wheels and the second transmission wheels are connected through the transmission belt.

[0005] Thus, with the transmission belt assembly as the transmission mechanism, when the upper base assembly and the lower base assembly are installed together, the first transmission wheel and the second transmission wheel are respectively matched with the transmission belt; when the upper base assembly and the lower base assembly are separated, the tensioning fit between the first transmission wheel and the second transmission wheel and the transmission belt is released, thereby avoiding unnecessary trouble caused by disassembling the transmission mechanism after disassembling the upper base assembly and the lower base assembly.

[0006] Optionally, the upper base assembly includes an upper base and a motor assembly, the lower base assembly includes a lower base and a fan assembly, the upper base and the lower base are detachably connected, the motor assembly is mounted on the upper base, the fan assembly is mounted on the lower base, the first transmission wheel is suitable for being connected to the fan shaft of the fan assembly, and the second transmission wheel is suitable for being rotatably connected to the upper base and / or the motor assembly.

[0007] Thus, by installing the fan assembly on the lower base and installing the motor assembly on the upper base, when the fan body needs to be cleaned, the lower base can be directly disassembled, and the first transmission wheel, the second transmission wheel and the transmission belt are automatically released from tension, while the upper base is still hung on the wall, and the motor body can be avoided from being disassembled, reducing the disassembly and assembly process and avoiding unnecessary trouble. In addition, since there is inevitably an error in the connection between the upper base and the lower base, and the motor is installed on the upper base, it is inevitable that the coaxiality between the motor shaft and the fan shaft will be low. By adopting the transmission belt drive method, when there is a large connection error between the upper base and the lower base, it can effectively avoid the motor shaft and the fan shaft from being connected on the coaxial line, thereby ensuring the normal operation of the motor and the fan.

[0008] Optionally, the motor assembly includes a motor body, a motor shaft and at least one transmission shaft, the transmission shaft is rotatably connected to the motor body or the upper base, one of the second transmission wheels is connected to the motor shaft, and the remaining second transmission wheels are respectively connected to the transmission shaft.

[0009] Thus, by installing the transmission shaft on the motor body and / or the upper base, and installing the second transmission wheel on the transmission shaft and the motor shaft respectively, the transmission belt is opened, and the length of the transmission belt that can be matched with the first transmission wheel is increased. In addition, by installing the second transmission wheel on the motor shaft, the second transmission wheel is directly driven to rotate by the motor shaft, and the motor shaft is used as a transmission shaft, thereby reducing the need to set one transmission shaft.

[0010] Optionally, the motor assembly includes a motor body, a motor shaft and at least two transmission shafts, the transmission shaft is rotatably connected to the motor body, the second transmission wheel is connected to the transmission shaft, and the motor shaft is drivingly connected to one of the transmission shafts.

[0011] Therefore, by installing the transmission shaft on the motor body and / or the upper base, and installing the second transmission wheel on the transmission shaft and the motor shaft respectively, the transmission belt is opened and the length of the transmission belt that can cooperate with the first transmission wheel is increased.

[0012] Optionally, the second transmission wheel is symmetrically arranged about the motor shaft.

[0013] Therefore, on the one hand, the force acting on the motor body can be made more balanced, and on the other hand, the length of the transmission belt is increased, and the length that the transmission belt can act on the first transmission wheel is increased, which facilitates the tensioning cooperation between the first transmission wheel and the transmission belt.

[0014] Optionally, the motor assembly further includes a first gear and a second gear; the first gear is connected to the motor shaft, the second gear is connected to one of the transmission shafts, and the first gear and the second gear are meshed.

[0015] Thus, the eccentric output of the transmission shaft is realized through the gear assembly, which can increase the length of the transmission belt and avoid the motor shaft directly driving the second transmission wheel, which causes the transmission belt to be set on one side of the motor, resulting in an unbalanced force on the motor itself. By the eccentric output of the transmission shaft, the motor shaft can be prevented from directly bearing the tension of the transmission belt.

[0016] Optionally, the motor assembly further includes a protective cover, which is detachably connected to the motor body, the protective cover is arranged outside the first gear and the second gear, and the transmission shaft extends out of the protective cover.

[0017] Therefore, by providing the protective cover, the first gear and the second gear can be hidden, thereby avoiding certain risks caused by exposure of the first gear and the second gear.

[0018] Optionally, it also includes a motor cover, the upper base is provided with a accommodating portion, the motor body is at least partially accommodated in the accommodating portion, the motor cover is covered on the motor body, the motor cover and the accommodating portion together form a space for installing the motor body, and the motor cover is detachably connected to the upper base.

[0019] Thus, the motor body is installed on the upper base through the detachable connection between the motor cover and the upper base. When the fan is disassembled and cleaned, the motor assembly is fixed to the upper base through the motor cover to prevent the motor body from falling.

[0020] Optionally, it further includes a bearing and a bearing mounting seat for mounting the bearing, the fan shaft of the fan assembly is inserted into the bearing, and the bearing mounting seat is detachably connected to the lower base.

[0021] Therefore, by detachably connecting the bearing mounting seat and the lower base, the crossflow fan blades can be fixed while being easily disassembled and cleaned.

[0022] The present invention also provides an air conditioner, comprising any of the above-mentioned base assemblies. The air conditioner has the same beneficial effects as the base assembly, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1is a schematic diagram of an air conditioner in an embodiment of the present invention after the lower base is disassembled;

[0024] Figure 2 It is a schematic diagram of the coordination of the motor assembly and the fan assembly in an embodiment of the present invention;

[0025] Figure 3 For the present invention Figure 2 Partial view at A in the middle;

[0026] Figure 4 is an exploded view of a motor assembly in an embodiment of the present invention;

[0027] Figure 5 is a schematic structural diagram of a motor assembly in an embodiment of the present invention;

[0028] Figure 6 is a partial view of a motor assembly in an embodiment of the present invention;

[0029] Figure 7 It is a schematic diagram of the cooperation between the first transmission wheel, the transmission wheel and the transmission belt in an embodiment of the present invention;

[0030] Figure 8 is an exploded view of the lower base and the fan assembly in an embodiment of the present invention;

[0031] Fig. 9 For the present invention Figure 8 Partial view at B in the middle;

[0032] Fig.10 For the present invention Figure 8 Partial view at center C;

[0033] Fig.11 is a schematic diagram of the cooperation between the upper base and the motor assembly in an embodiment of the present invention;

[0034] Fig.12 For the present invention Fig.11 Partial view at D in the middle;

[0035] Fig.13 is an exploded view of an upper base and a motor assembly in an embodiment of the present invention;

[0036] Fig.14 For the present invention Fig.13 Partial view at E in the middle;

[0037] Fig.15 is an exploded view of an upper base and a motor assembly in another embodiment of the present invention;

[0038] Fig.16 For the present invention Fig.15 Partial view at F in the middle;

[0039] Fig.17 is an exploded view of an upper base and a motor assembly in yet another embodiment of the present invention;

[0040] Fig.18 For the present invention Fig.17 Partial view at G in the middle.

[0041] Marking Description:

[0042] 1-motor assembly, 2-upper base, 3-lower base, 4-fan assembly, 11-motor body, 12-motor shaft, 13-first gear, 14-transmission belt, 15-transmission shaft, 16-second transmission wheel, 17-second gear, 18-protective cover, 19-bearing, 181-limiting surface structure, 21-accommodating portion, 22-motor pressure cover, 23-limiting plate, 24-first limiting opening, 25-second limiting opening, 221-limiting opening structure, 31-jack structure, 41-fan body, 42-fan shaft, 43-bearing mounting seat, 431-buckle structure, 44-first transmission wheel, 45-bearing seat pressure cover. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment" and "one implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or implementation are included in at least one embodiment or implementation of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.

[0046] The terms "first" and "second" etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0047] The present invention provides a base assembly, such as Figure 1 As shown, it includes an upper base assembly, a lower base assembly and a belt transmission assembly, the upper base assembly and the lower base assembly are detachably connected, the belt transmission assembly includes a first transmission wheel 44, a transmission belt 14 and at least two second transmission wheels 16, the first transmission wheel 44 is rotatably connected to the lower base assembly, the second transmission wheel 16 is rotatably connected to the upper base assembly, and all of the first transmission wheels 44 and the second transmission wheels 16 are connected through the transmission belt 14.

[0048] It should be noted that the upper base assembly may include an upper base 2 and a motor assembly 1 or a mounting member disposed on the upper base; the lower base assembly may include a lower base 3 and a fan assembly 4 or a mounting member disposed on the upper base. The first transmission wheel 44 may be mounted on the lower base 3, the fan assembly 4 or a mounting member, and it is only necessary to ensure that the first transmission wheel 44 is rotatable; the second transmission wheel 16 may be mounted on the upper base 2, the motor assembly 1 or a mounting member, and it is only necessary to ensure that the second transmission wheel 16 is rotatable. Here, the second transmission wheels 16 may be two, three or more.

[0049] The advantage of such a configuration is that, with the transmission belt assembly as the transmission mechanism, when the upper base assembly and the lower base assembly are installed together, the first transmission wheel 44 and the second transmission wheel 16 are respectively matched with the transmission belt 14; when the upper base assembly and the lower base assembly are separated, the tensioning fit between the first transmission wheel 44 and the second transmission wheel 16 and the transmission belt 14 is released, thereby avoiding unnecessary trouble caused by disassembling the transmission mechanism after disassembling the upper base assembly and the lower base assembly.

[0050] like Figures 1 to 3 As shown, the upper base assembly includes an upper base 2 and a motor assembly 1, the lower base assembly includes a lower base 3 and a fan assembly 4, the upper base 2 and the lower base 3 are detachably connected, the motor assembly 1 is mounted on the upper base 2, the fan assembly 4 is mounted on the lower base 3, the first transmission wheel 44 is suitable for being connected to the fan shaft 42 of the fan assembly 4, and the second transmission wheel 16 is suitable for being rotatably connected to the upper base 2 and / or the motor assembly 1.

[0051] It should be noted that the fan assembly 4 includes a fan body 41 and a fan shaft 42 connected to the fan body 41, the upper base 2 and the lower base 3 can be fastened and connected by snaps or screws, the upper base 2 has a position for installing the motor body 11, and the lower base 3 has a space for accommodating the fan body 41. The fan body 41 can be a cross-flow fan blade. The first transmission wheel 44 and the fan shaft 42 can be key-connected, interference-fitted or integrally connected. The first transmission wheel 44 can be provided with an inner flat key, and the fan shaft 42 can be provided with an outer flat key, and the fan shaft 42 is inserted into the first transmission wheel 44 to achieve the matching of the inner flat key and the outer flat key. Of course, the first transmission wheel 44 and the fan shaft 42 can also be an integrally formed structure.

[0052] The motor can directly drive the second transmission wheel 16 of the belt transmission mechanism, or can drive the belt transmission mechanism through other intermediate transmission mechanisms. In one embodiment, the second transmission wheel 16 can be installed only on the upper base 2 or the motor assembly 1; in one embodiment, the second transmission wheel 16 can be installed only on the upper base 2 and the motor assembly 1.

[0053] During installation, the motor body 11 is first fixed to the upper base 2 through a fixing structure, and then the fan body 41 is installed on the lower base 3, so that the transmission belt 14 is respectively tensioned with the first transmission wheel 44 and the second transmission wheel 16, and finally the lower base 3 is fixed to the upper base 2. During disassembly, the lower base 3 is directly disassembled to release the tension between the transmission belt 14 and the first transmission wheel 44 and the second transmission wheel 16.

[0054] The advantage of such a configuration is that, by installing the fan assembly 4 on the lower base 3 and installing the motor assembly 1 on the upper base 2, when it is necessary to clean the fan body 41, the lower base 3 can be directly disassembled, the first transmission wheel 44, the second transmission wheel 16 and the transmission belt 14 automatically release the tension fit, and the upper base 2 is still hung on the wall, and the motor body 11 can also be avoided from being disassembled, reducing the disassembly and assembly process and avoiding unnecessary trouble. In addition, since there is inevitably an error in the connection between the upper base 2 and the lower base 3, and the motor is installed on the upper base, it is inevitable that the coaxiality between the motor shaft 12 and the fan shaft 42 is low, and the transmission belt drive method is adopted, when there is a large connection error between the upper base 2 and the lower base 3, the motor shaft 12 can be effectively avoided from being connected to the fan shaft 42 on the coaxial line, ensuring the normal operation between the motor and the fan.

[0055] In this embodiment, if Figures 4 to 6 , Fig.17 and Fig.18 As shown, the motor assembly 1 includes a motor body 11, a motor shaft 12 and at least one transmission shaft 15, wherein the transmission shaft 15 is rotatably connected to the motor body 11 and / or the upper base 2, wherein one of the second transmission wheels 16 is connected to the motor shaft 12, and the remaining second transmission wheels 16 are respectively connected to the transmission shaft 15.

[0056] Here, the sum of the number of the motor shaft 12 and the transmission shaft 15 is equal to the number of the second transmission wheels 16. The second transmission wheel 16 and the motor shaft 12 or the transmission shaft 15 can be key-connected, interference-fitted or integrally connected. The transmission shaft 15 is mounted on the motor body 11 and / or the upper base 2, and the transmission shaft 15 is rotatable so that the second transmission wheel 16 can rotate with the transmission shaft 15. Since all the second transmission wheels 16 and the first transmission wheel 44 are tensioned by the transmission belt 14, when the motor shaft 12 drives one of the second transmission wheels 16 to rotate, the transmission belt 14 simultaneously drives the other second transmission wheels 16 to rotate, and then drives the first transmission wheel 44 to rotate, thereby driving the fan assembly 4.

[0057] The advantage of such a configuration is that, by installing the transmission shaft 15 on the motor body 11 and / or the upper base 2, and installing the second transmission wheel 16 on the transmission shaft 15 and the motor shaft 12 respectively, the transmission belt 14 is opened, and the length of the transmission belt 14 that can be matched with the first transmission wheel 44 is increased. In addition, by installing the second transmission wheel 16 on the motor shaft 12, the second transmission wheel 16 is directly driven to rotate by the motor shaft 12, and the motor shaft 12 is used as a transmission shaft, thereby reducing the need to set up one transmission shaft 15.

[0058] like Fig.17 and Fig.18 As shown, the base assembly also includes a motor cover 22, and a receiving portion 21 is opened on the upper base 2. The motor body 11 is at least partially received in the receiving portion 21. The motor cover 22 is covered on the motor body 11. The motor cover 22 and the receiving portion 21 together form a space for installing the motor body 11. The motor cover 22 is detachably connected to the upper base 2.

[0059] It should be noted that the motor gland 22 and the upper base 2 can be connected by screws or snaps. When the motor gland 22 and the accommodating portion 21 enclose the motor body 11, the motor shaft 12 is exposed from the accommodating portion 21. The accommodating portion 21 matches the circumferential contour of the motor body 11. The contour of the motor gland 22 close to one end of the motor body 11 also matches the circumferential contour of the motor body 11. When installing the air conditioner, first put the motor body 11 into the accommodating portion 21, and then press the motor gland 22 onto the motor body 11. By fixing the motor gland 22 to the upper base 2, the motor body 11 is fixed.

[0060] Therefore, the motor body 11 is installed on the upper base 2 through the detachable connection between the motor cover 22 and the upper base 2. When the fan is disassembled and cleaned, the motor body 11 is fixed to the upper base 2 through the motor cover 22 to prevent the motor body 11 from falling. At the same time, the motor body 11 can also be tightened to prevent the motor body 11 from shifting when the transmission belt 14 and the first transmission wheel 44 are tensioned.

[0061] like Fig.18 As shown, a protective cover 18 is provided on the motor body 11 , a first limiting opening 24 is provided on the upper base 2 , and a second limiting opening 25 is provided on the motor gland 22 . The first limiting opening 24 and the second limiting opening 25 together form a restriction on the protective cover 18 .

[0062] It should be noted that the upper base 2 includes a limit plate 23, on which the first limit opening 24 is formed, and the shape of the area enclosed by the first limit opening 24 and the second limit opening 25 is the same as the shape of the cross section of the protective cover 18. The cross-sectional shape of the protective cover 18 can be rectangular, elliptical, waist-shaped or other non-circular structures. When the motor body 11 is installed on the upper base 2, the first limit opening 24 and the second limit opening 25 work together to limit the protective cover 18, thereby preventing the motor body 11 from rotating and causing the transmission belt 14 to deflect.

[0063] In one embodiment, Figures 4 to 6 , Figures 11 to 16As shown, the motor assembly 1 includes a motor body 11, a motor shaft 12 and at least two transmission shafts 15, the transmission shaft 15 is rotatably connected to the motor body 11, the second transmission wheel 16 is connected to the transmission shaft 15, and the motor shaft 12 is drivingly connected to one of the transmission shafts 15. Here, the number of the transmission shafts 15 is equal to the number of the second transmission wheels 16. The motor shaft 12 can be drivingly connected to the transmission shaft 15 through a gear assembly, the motor shaft 12 drives the gear assembly to rotate, and then the gear assembly drives the second transmission wheel 16 to move.

[0064] The advantage of such a configuration is that by installing the transmission shaft 15 on the motor body 11 and / or the upper base 2, and installing the second transmission wheel 16 on the transmission shaft 15 and the motor shaft 12 respectively, the transmission belt 14 can be opened, thereby increasing the length of the transmission belt 14 that can cooperate with the first transmission wheel 44.

[0065] like Figure 4 , Fig.13 and 14 As shown, the second transmission wheel 16 is symmetrically arranged about the motor shaft 12. Here, there are two second transmission wheels 16, which can also be said that the transmission shaft 15 is symmetrically arranged about the motor shaft 12. On the one hand, the force exerted on the motor body 11 can be more balanced, and on the other hand, the length of the transmission belt 14 is increased, and the length of the transmission belt that can act on the first transmission wheel 44 is increased, so that the first transmission wheel 44 and the transmission belt are convenient for tensioning and matching.

[0066] like Figures 4 to 6 As shown, the motor assembly 1 also includes a first gear 13, a second gear 17 and at least two transmission shafts 15, and the transmission shaft 15 is rotatably connected to the motor; the second transmission wheel 16 is connected to the transmission shaft 15, the first gear 13 is connected to the motor shaft 12 of the motor, and the second gear 17 is connected to one of the transmission shafts 15, and the first gear 13 and the second gear 17 are meshed.

[0067] It should be noted that the first gear 13 and the motor shaft 12 can also be an integrally formed structure, and the second gear 17 and one of the transmission shafts 15 can also be an integrally formed structure. When the motor is running, the first gear 13 rotates with the motor shaft 12, and the first gear 13 drives the second gear 17 to rotate, and one of the transmission shafts 15 rotates synchronously with the second gear 17, thereby realizing the output of one of the transmission shafts 15, and the second transmission wheel 16 rotates with the transmission shaft 15, thereby realizing the driving of the transmission belt 14.

[0068] Here, the end of the motor body 11 is provided with a structure suitable for installing the transmission shaft 15. For example, the transmission shaft 15 can be inserted into the motor body 11, and a limiting structure is provided on the transmission shaft 15 to cooperate with the end of the motor body 11 to limit the axial displacement of the transmission shaft 15. The second transmission wheel 16 can be provided with an inner flat key, and the transmission shaft 15 is provided with an outer flat key. The transmission shaft 15 is inserted into the second transmission wheel 16 to achieve the cooperation between the inner flat key and the outer flat key. Of course, the second transmission wheel 16 and the transmission shaft 15 can also be an integrally formed structure.

[0069] The advantage of such a configuration is that the eccentric output of the transmission shaft 15 is realized through the gear assembly, which can increase the length of the transmission belt and avoid the motor shaft 12 directly driving the second transmission wheel 16, which causes the transmission belt to be set on one side of the motor, resulting in an unbalanced force on the motor itself. By the eccentric output of the transmission shaft 15, the motor shaft can be prevented from directly bearing the tension of the transmission belt 14.

[0070] like Figure 7 As shown, the first transmission wheel 44 is in tension with the outer circumferential surface of the transmission belt 14. When installing the fan assembly 4 and the motor assembly 1, the motor can be fixed on the base first, and then the fan assembly 4 is installed. The fan body 41 is placed on the base of the air conditioner. The first transmission wheel 44 acts on the transmission belt 14, so that the transmission belt 14 and the first transmission wheel 44 are in tension, and finally the fan assembly 4 is fixed. When disassembling, the fan assembly can be directly removed, and the transmission relationship between the fan assembly 4 and the belt transmission mechanism is released at the same time. In addition, the first transmission wheel 44 is in tension with the outer circumferential surface of the transmission belt 14, which can make better use of the space enclosed by the transmission belt, and avoid the protrusion of the transmission belt 14 when the first transmission wheel 44 cooperates with the inner circumferential surface of the transmission belt 14, resulting in a waste of space.

[0071] like Figure 7As shown, the diameter of the second transmission wheel 16 drivingly connected to the motor shaft 12 is smaller than the diameter of the other second transmission wheels 16. Here, the motor drives one of the transmission shafts 15 through the first gear 13 and the second gear 17 to be drivingly connected. The second transmission wheel 16 on the transmission shaft 15 is the driving wheel, and the driving wheel is the second transmission wheel 16 drivingly connected to the motor shaft 12. The driven wheel refers to the other second transmission wheels 16, that is, the diameter of the driving wheel is smaller than the diameter of the driven wheel. The advantage of such a setting is that the diameter of the driving wheel is smaller than the diameter of the driven wheel, which can reduce the transmission ratio of the transmission belt 14, reduce the rotation speed of the driven wheel, and reduce the wear between the transmission shaft 15 and the motor. In addition, the area of ​​the enclosed area of ​​the transmission belt can be increased, and the matching space between the transmission belt 14 and the fan shaft 42 can be increased.

[0072] like Figure 7 As shown, the angle between the center of the first transmission wheel 44 and the line connecting the centers of the transmission shafts 15 of the two motor assemblies is between 120 degrees and 180 degrees. The angle between the center of the first transmission wheel 44 and the line connecting the centers of the transmission shafts 15 of the two motor assemblies can be 120 degrees, 135 degrees, 150 degrees or 180 degrees. By limiting the angle between the center of the first transmission wheel 44 and the line connecting the centers of the transmission shafts 15 of the two motor assemblies, it is avoided that the angle is too small to cause slippage between the transmission belt 14 and the first transmission wheel 44, resulting in reduced transmission efficiency.

[0073] like Figures 4 to 6 As shown, the motor assembly 1 further includes a protective cover 18 , and the protective cover 18 is disposed outside the first gear 13 and the second gear 17 , and the transmission shaft 15 extends out of the protective cover 18 .

[0074] It should be noted that a hole is opened on the protective cover 18 for the transmission shaft 15 to extend out. The protective cover 18 has a space for accommodating the first gear 13 and the second gear 17, and can ensure that the first gear 13 and the second gear 17 can rotate freely. When the protective cover 18 is installed on the motor body 11, the second transmission wheel 16 is located outside the protective cover 18.

[0075] Therefore, by providing the protective cover 18 , the first gear 13 and the second gear 17 can be hidden, thereby avoiding certain risks caused by exposure of the first gear 13 and the second gear 17 .

[0076] like Figure 6As shown, the end face of the motor shaft 12 away from the motor body 11 is not exposed to the end face of the protective cover 18 away from the motor body 11. It should be noted that the end face of the motor shaft 12 away from the motor body 11 can be hidden in the protective cover 18, or it can be flush with the end face of the protective cover 18 away from the motor body 11. On the one hand, the motor shaft 12 can be hidden to avoid unnecessary risks, and on the other hand, it can prevent the motor shaft 12 from extending into the area surrounded by the transmission belt 14, causing interference with the installation of the fan shaft 42.

[0077] like Figures 4 to 6 As shown, the motor assembly 1 also includes at least two bearings 19, which are sleeved on the transmission shaft 15, and the bearings 19 are respectively arranged on both axial sides of the second gear 17, and the axial ends of one of the bearings 19 are respectively in contact with the motor body 11 and the second gear 17, and the axial ends of one of the bearings 19 are respectively in contact with the second gear 17 and the protective cover 18. Therefore, through the cooperation between the protective cover 18 and the bearing 19, when the protective cover 18 is installed on the motor body 11, the protective cover 18 can press the second gear 17, thereby avoiding the jumping of the second gear 17. In addition, through the arrangement of the bearing 19, the wear between the second gear 17 and the motor body 11 can also be reduced.

[0078] like Figures 11 to 14 As shown, the base assembly also includes a motor cover 22, and a receiving portion 21 is provided on the upper base 2. The motor of the air-conditioning fan driving mechanism is at least partially received in the receiving portion 21. The motor cover 22 is covered on the motor. The motor cover 22 and the receiving portion 21 together form a space for installing the motor. The motor cover 22 is detachably connected to the upper base 2.

[0079] It should be noted that the motor gland 22 and the upper base 2 can be connected by screws or snaps. When the motor gland 22 and the accommodating portion 21 enclose the motor body 11, the motor shaft 12 is exposed from the accommodating portion 21. The accommodating portion 21 matches the circumferential contour of the motor body 11. The contour of the motor gland 22 close to one end of the motor body 11 also matches the circumferential contour of the motor body 11. When installing the air conditioner, first put the motor body 11 into the accommodating portion 21, and then press the motor gland 22 onto the motor body 11. By fixing the motor gland 22 to the upper base 2, the motor body 11 is fixed.

[0080] Therefore, by detachably connecting the motor cover 22 to the upper base 2, the motor body 11 can be installed on the upper base 2. When the fan is disassembled and cleaned, the motor assembly 1 can be fixed to the upper base 2 by the motor cover 22 to prevent the motor body 11 from falling.

[0081] like Figure 5 As shown, a limiting surface structure 181 is provided on the protective cover 18 , and the limiting surface structure 181 is suitable for cooperating with a limiting structure on the base of the air conditioner to limit the circumferential rotation of the protective cover 18 .

[0082] In one embodiment, the air conditioner has only one base, and the limiting structure is provided on the base. In one embodiment, the air conditioner includes a detachable upper base 2 and a lower base 3, the motor is mounted on the lower base 3, and the limiting structure is provided on the lower base 3. In one embodiment, the air conditioner includes a detachable upper base 2 and a lower base 3, such as Fig.14 As shown, the motor is installed on the upper base 2, the limiting structure is opened on the upper base 2, and a limiting opening structure 221 is opened on the motor cover 22. The limiting opening structure 221 and the limiting structure work together to limit the position of the protective cover 18, thereby limiting the circumferential rotation of the motor body 11.

[0083] like Figures 8 to 10 As shown, the base assembly also includes a bearing (not shown in the figure) and a bearing mounting seat 43 for bearing installation, the fan shaft 42 is inserted into the bearing, and the bearing mounting seat 43 is detachably connected to the lower base 3.

[0084] It should be noted that the bearing is used to cooperate with the fan shaft 42 to reduce the rotational friction between the fan shaft 42 and the bearing mounting seat 43. The bearing mounting seat 43 is provided with a bearing accommodating portion, and the bearing is embedded in the bearing accommodating portion. The bearing mounting seat 43 is provided with a buckle structure 431, and the lower base 3 is provided with a socket structure 31 that cooperates with the buckle structure 431. The buckle structure 431 is engaged with the socket structure 31. When installing, first install the bearing in the bearing accommodating portion, then pass the fan shaft 42 through the bearing, and finally install the crossflow fan blade together with the bearing mounting seat 43 on the lower base 3.

[0085] The advantage of such a configuration is that, by detachably connecting the bearing mounting seat 43 to the lower base 3 , the crossflow fan blades can be fixed while being easily disassembled and cleaned.

[0086] like Figures 8 to 10As shown, the base assembly further includes a bearing seat pressure cover 45, the bearing seat pressure cover 45, the bearing seat pressure cover 45, the bearing seat pressure cover 45 is covered on the bearing mounting seat 43, and the bearing seat pressure cover 45 is detachably connected to the lower base 3. The bearing seat pressure cover 45 can be connected to the lower base 3 by snapping or screwing, and the shape of one end of the bearing seat pressure cover 45 close to the bearing mounting seat 43 matches the profile of the bearing mounting seat 43. When the bearing seat pressure cover 45 is installed on the lower base 3, the bearing seat pressure cover 45 is further pressed on the bearing mounting seat 43, so that the bearing seat pressure cover 45 fits the bearing mounting seat 43, and at the same time, the bearing seat pressure cover 45 is connected to the lower base 3, so as to further reinforce the bearing mounting seat 43 and prevent the shaking of the bearing mounting seat 43.

[0087] This embodiment provides an air conditioner, comprising any of the above-mentioned base assemblies. The air conditioner has the same beneficial effects as the base assembly, which will not be described in detail here.

[0088] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A base assembly, characterized in that: The invention comprises an upper base assembly, a lower base assembly, a belt transmission assembly, a bearing and a bearing mounting seat (43) for mounting the bearing, wherein the upper base assembly and the lower base assembly are detachably connected, the belt transmission assembly comprises a first transmission wheel (44), a transmission belt (14) and at least two second transmission wheels (16), the first transmission wheel (44) is rotatably connected to the lower base assembly, the second transmission wheel (16) is rotatably connected to the upper base assembly, all the first transmission wheels (44) and the second transmission wheels (16) are transmission-connected via the transmission belt (14), the upper base assembly comprises an upper base (2) and a motor assembly (1), the lower base assembly comprises a lower base (3) and a fan assembly (4), the upper base (2) and the lower base (3) are detachably connected, the motor assembly (1) is mounted on the upper base (2) and the lower base (3) The fan assembly (4) is mounted on the upper base (2), the fan assembly (4) is mounted on the lower base (3), the first transmission wheel (44) is suitable for being connected to the fan shaft (42) of the fan assembly (4), the second transmission wheel (16) is suitable for being rotatably connected to the upper base (2) and / or the motor assembly (1), the motor assembly (1) comprises a motor body (11), a motor shaft (12) and at least two transmission shafts (15), the transmission shaft (15) is rotatably connected to the motor body (11), the second transmission wheel (16) is connected to the transmission shaft (15), the motor shaft (12) is drivingly connected to one of the transmission shafts (15), the fan shaft (42) of the fan assembly (4) is inserted into the bearing, and the bearing mounting seat (43) is detachably connected to the lower base (3).

2. The base assembly according to claim 1, characterized in that: The motor assembly (1) comprises a motor body (11), a motor shaft (12) and at least one transmission shaft (15), wherein the transmission shaft (15) is rotatably connected to the motor body (11) or the upper base (2), wherein one of the second transmission wheels (16) is connected to the motor shaft (12), and the remaining second transmission wheels (16) are respectively connected to the transmission shaft (15).

3. The base assembly according to claim 1, characterized in that: The second transmission wheel (16) is symmetrically arranged with respect to the motor shaft (12).

4. The base assembly according to claim 1, characterized in that: The motor assembly (1) further comprises a first gear (13) and a second gear (17); the first gear (13) is connected to the motor shaft (12), the second gear (17) is connected to one of the transmission shafts (15), and the first gear (13) and the second gear (17) are meshed.

5. The base assembly according to claim 4, characterized in that: The motor assembly (1) further comprises a protective cover (18), wherein the protective cover (18) is detachably connected to the motor body (11), the protective cover (18) is arranged outside the first gear (13) and the second gear (17), and the transmission shaft (15) extends outside the protective cover (18).

6. The base assembly according to claim 5, characterized in that: The motor cover (22) is also included. The upper base (2) is provided with a receiving portion (21). The motor body (11) is at least partially received in the receiving portion (21). The motor cover (22) is covered on the motor body (11). The motor cover (22) and the receiving portion (21) together form a space for installing the motor body (11). The motor cover (22) is detachably connected to the upper base (2).

7. An air conditioner, characterized in that: It comprises a base assembly as described in any one of claims 1-6.

Images