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 three 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 by transmission belt transmission. Therefore, when the upper base assembly and the lower base assembly are disassembled, the tensioning fit between the first transmission wheel and the second transmission wheel and the transmission belt is released, and unnecessary trouble caused by the need to disassemble the transmission mechanism is avoided. By setting at least three second transmission wheels, the length of the transmission belt is increased, the area of ​​the enclosed area of ​​the transmission belt is increased, the adjustable space for connecting the fan assembly with the transmission belt is increased, and the probability of self-interference of the transmission belt is reduced.

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 that unnecessary troubles are caused by disassembling the transmission mechanism when disassembling the fan to a certain extent.

[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 three 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 via 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 disassembled, the tensioning match between the first transmission wheel and the second transmission wheel and the transmission belt is released. This avoids unnecessary trouble caused by disassembling the transmission mechanism after disassembling the upper base assembly and the lower base assembly. In addition, by setting at least three second transmission wheels, the area of ​​the enclosed area of ​​the transmission belt can be increased, and the adjustable space for connecting the fan assembly with the transmission belt is increased. When the fan assembly cooperates with the outer surface of the transmission belt, the probability of self-interference of the transmission belt caused by the small area of ​​the enclosed area of ​​the transmission belt can be reduced.

[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 two transmission shafts, 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 shafts.

[0009] Thus, by installing one second transmission wheel on the motor shaft, the number of transmission shafts is smaller than the number of second transmission wheels, and the structure of the motor itself is fully utilized to realize the transmission of the transmission belt. When there are two transmission shafts, a second transmission wheel can be arranged on the motor shaft, which can increase the area of ​​the transmission belt enclosed area and increase the flexibility of the transmission belt and the fan assembly.

[0010] Optionally, the motor assembly includes a motor body, a motor shaft and at least three 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 arranging the second transmission wheel on the transmission shaft, it is possible to avoid occupying the area in the center of the motor. When the fan assembly is tensioned with the outer surface of the transmission belt, it is possible to avoid self-interference of the transmission belt due to the area enclosed by the transmission belt being too small.

[0012] Optionally, the motor shaft is located between all the second transmission wheels.

[0013] Therefore, by arranging the motor shaft between the areas surrounded by all the second transmission wheels, the length of the transmission belt that can act on the first transmission wheels is increased, and space can be further saved.

[0014] Optionally, the distances between the centers of the second transmission wheels and the centers of the motor shafts are equal.

[0015] Therefore, by symmetrically setting the second transmission wheels, the force exerted by the transmission belt on the motor can be made uniform, thereby preventing the motor from being deflected due to unilateral force on the motor.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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

[0025] Figure 1 is a schematic diagram of an air conditioner in an embodiment of the present invention after the lower base and the upper base are separated;

[0026] 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;

[0027] Figure 3 For the present invention Figure 2 Partial view at A in the middle;

[0028] Figure 4 It is a schematic diagram of the structure after the protective cover in the embodiment of the present invention is disassembled;

[0029] Figure 5 is an exploded view of the lower base and the fan assembly in an embodiment of the present invention;

[0030] Figure 6 For the present invention Figure 5 Partial view at B in the middle;

[0031] Figure 7 For the present invention Figure 5 Partial view at center C;

[0032] Figure 8 is a schematic diagram of the cooperation between the upper base and the motor assembly in an embodiment of the present invention;

[0033] Fig. 9 For the present invention Figure 8 Partial view at point D in the middle.

[0034] Marking Description:

[0035] 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-plane limiting structure, 182-limiting surface structure, 21-motor accommodating portion, 22-motor pressure cover, 221-limiting mouth structure, 23-limiting groove, 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

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] The present invention provides a base assembly, such as Figures 1 to 4 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, a transmission belt and at least three 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.

[0041] 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 sufficient 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 sufficient to ensure that the second transmission wheel 16 is rotatable. Here, there may be three or more second transmission wheels 16.

[0042] 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 disassembled, the tensioning match between the first transmission wheel 44 and the second transmission wheel 16 and the transmission belt 14 is released. This avoids unnecessary trouble caused by disassembling the transmission mechanism after disassembling the upper base assembly and the lower base assembly. In addition, by setting at least three second transmission wheels 16, the area of ​​the enclosed area of ​​the transmission belt 14 can be increased, and the adjustable space for connecting the fan assembly 4 with the transmission belt 14 is increased. When the fan assembly 4 cooperates with the outer surface of the transmission belt 14, the probability of the transmission belt self-interference caused by the area of ​​the enclosed area of ​​the transmission belt 14 being too small can be reduced.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] It should be noted that the second transmission wheel 16 is tensioned with the inner surface of the transmission belt 14, the upper base 2 and the lower base 3 can be fastened and connected by buckles 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. When installing, the motor body 11 is first fixed to the upper base 2 through a fixing structure, and then the fan assembly 4 is installed on the lower base 3, so that the transmission belt 14 and the fan assembly 4 are tensioned, and finally the lower base 3 is fixed to the upper base 2. When disassembling, the lower base 3 is directly separated from the upper base 2, and the fan assembly 4 can be directly taken out. When the motor is running, the transmission belt 14 is driven to rotate, and then the fan assembly 4 is driven to rotate through the transmission belt 14. The number of the second transmission wheels 16 can be 3, 4 or more, and the number of the second transmission wheels 16 depends on the actual size of the motor. The distance between the centers of adjacent second transmission wheels 16 is greater than or equal to 40mm.

[0049] 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 will be low. By adopting a belt drive method, when there is a large connection error between the upper base 2 and the lower base 3, the motor shaft 12 and the fan shaft 42 can be effectively avoided from being connected on the coaxial line, thereby ensuring normal operation of the motor and the fan.

[0050] In addition, by installing the fan assembly 4 on the lower base 3 and installing the motor assembly 1 on the upper base 2, when the fan assembly 4 needs to be disassembled and cleaned, the lower base 3 is separated from the upper base 2, and the first transmission wheel 44 and the transmission belt 14 are automatically separated, while the upper base 2 is still hung on the wall, thereby avoiding disassembly of the motor body 11, reducing the disassembly and assembly process, and avoiding unnecessary trouble.

[0051] In one embodiment, the motor assembly 1 includes a motor body 11, a motor shaft 12 and at least two transmission shafts 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 shafts 15.

[0052] In one embodiment, the transmission shaft 15 can be rotatably connected to the motor body 11, one of the second transmission wheels 16 can be integrally connected, keyed, or interference-fitted with the motor shaft 12, and the other second transmission wheels 16 can be integrally connected, keyed, or interference-fitted with the transmission shaft 15, respectively. In one embodiment, the transmission shaft 15 can be rotatably connected to the motor body 11, and all the second transmission wheels 16 can be integrally connected, keyed, or interference-fitted with the transmission shaft 15. In one embodiment, the transmission shaft 15 can be rotatably connected to the upper base 2, one of the second transmission wheels 16 can be integrally connected, keyed, or interference-fitted with the motor shaft 12, and the other second transmission wheels 16 can be integrally connected, keyed, or interference-fitted with the transmission shaft 15, respectively. 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 set 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. When there are three second transmission wheels 16, the motor shaft 12 is directly connected to one of the second transmission wheels 16, that is, one of the second transmission wheels 16 is located at the center of the motor, and the remaining two second transmission wheels 16 are located on the same side of the motor shaft 12 in the radial direction.

[0053] The advantage of such a configuration is that, by installing one second transmission wheel 16 on the motor shaft 12, the number of the transmission shafts 15 is smaller than the number of the second transmission wheels 16, and the structure of the motor itself is fully utilized to realize the transmission belt transmission. When there are two transmission shafts 15, the second transmission wheel 16 can be arranged on the motor shaft, which can increase the area of ​​the enclosed area of ​​the transmission belt 14 and increase the flexibility of the cooperation between the transmission belt 14 and the fan assembly 4.

[0054] In this embodiment, if Figure 4As shown, the motor assembly 1 includes a motor body 11, a motor shaft 12 and at least three 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. It should be noted that the number of the transmission shafts 15 is the same as the number of the second transmission wheels 16, each of the transmission shafts 15 is sleeved with a second transmission wheel 16, and the motor shaft 12 can be driven and connected to one of the transmission shafts 15 through the cooperation of the gear assembly and other intermediate structures. Therefore, by arranging the second transmission wheel 16 on the transmission shaft 15, it is possible to avoid occupying the area of ​​the motor center, and when the fan assembly 4 is tensioned with the outer surface of the transmission belt 14, it is possible to avoid the area of ​​the enclosed area of ​​the transmission belt 14 being too small to cause the transmission belt 14 to interfere with itself.

[0055] like Figure 4 As shown, the motor shaft 12 is located between all the second transmission wheels 16. Here, the motor shaft 12 being located between all the second transmission wheels 16 means that the motor shaft 12 is located in an area surrounded by the centers of all the second transmission wheels 16. By arranging the motor shaft between the areas surrounded by all the second transmission wheels 16, the length of the transmission belt that can act on the first transmission wheel 44 is increased, and space can be further saved.

[0056] Preferably, the distances between the centers of different second transmission wheels 16 and the center of the motor shaft 12 are equal. That is, all the second transmission wheels 16 are arranged in an array along the circumference of the motor, and the centers of all adjacent second transmission wheels 16 are connected to form a regular polygon, and the positions of the transmission shaft 15 and the second transmission wheels 16 correspond. Therefore, by symmetrically arranged second transmission wheels 16, the force exerted by the transmission belt 14 on the motor can be uniformed, avoiding the motor deflection caused by the force on one side of the motor.

[0057] like Figure 4 As shown, the motor assembly further includes 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.

[0058] 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.

[0059] 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.

[0060] like Figures 1 to 4 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.

[0061] like Figure 3 As shown, the motor assembly further includes a protective cover 18 , which is detachably connected to the motor body 11 , 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 .

[0062] 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.

[0063] 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 .

[0064] like Figure 3 As 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.

[0065] like Figure 8 and Fig. 9 As shown, the air conditioner also includes a motor pressure 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 pressure cover 22 is covered on the motor body 11. The motor pressure cover 22 and the receiving portion 21 together form a space for installing the motor body 11. The motor pressure cover 22 is detachably connected to the upper base 2.

[0066] 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 motor accommodating portion 21 enclose the motor body 11, the motor shaft 12 is exposed from the motor accommodating portion 21. The motor 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 motor 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.

[0067] 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.

[0068] like Figure 8 and Fig. 9As shown, the protective cover 18 is provided with a plane limiting structure 181, and the motor gland 22 is provided with a limiting opening structure 221, and the plane limiting structure 181 is fitted with the limiting opening structure 221. Here, the plane limiting structure 181 can be perpendicular to the end face of the motor axis, or can be inclined relative to the end face of the motor axis. When the motor gland 22 is installed on the upper base 2, the plane limiting structure 181 is fitted with the limiting opening structure 221, thereby preventing the motor body 11 from rotating in the circumferential direction.

[0069] like Figure 8 and Fig. 9 As shown, a limiting surface structure 182 is also provided on the protective cover 18, and a limiting groove 23 is provided on the base. The limiting surface structure 182 fits with the bottom of the limiting groove 23. The cross-sectional shape of the limiting groove 23 can be arc-shaped or rectangular. The limiting surface structure 182 has the same cross-sectional shape as the limiting groove 23. Through the cooperation between the limiting groove 23 and the limiting surface structure 182, the installation of the motor is more stable, and the transmission belt 14 is prevented from deflecting the motor after being tensioned.

[0070] like Figures 5 to 8 As shown, the fan assembly 4 includes a fan body 41, a fan shaft 42 and a first transmission wheel 44. The fan shaft 42 is arranged at both axial ends of the fan body 41, and the first transmission wheel 44 is connected to the fan shaft 42. The first transmission wheel 44 is tensioned with the circumferential outer surface of the transmission belt 14.

[0071] It should be noted that the fan body 41 can be a cross-flow fan blade, and the first transmission wheel 44 and the fan shaft 42 can also be connected in one piece. During installation, the fan body 41 can be placed on the base of the air conditioner, and then the fan shaft 42 can be fixed, and then the motor can be fixed on the base, and the first transmission wheel 44 acts on the transmission belt 14, and the first transmission wheel 44 is concave toward the area surrounded by the transmission belt 14, so that the transmission belt 14 and the first transmission wheel 44 are in tension. When the motor is running, it drives the transmission belt 14 to rotate, and then drives the fan shaft 42 to rotate through the transmission belt 14, so as to drive the fan body 41. At this time, the fan body 41 and the motor shaft 12 are not connected in the axial direction.

[0072] The advantage of such a configuration is that the motor drives the fan by means of a transmission belt, so that the motor shaft 12 is prevented from being connected or limited with the fan shaft 42 in the axial direction of the motor shaft 12. When the fan is disassembled and cleaned, the motor does not need to be disassembled, thereby reducing the disassembly and assembly process. In addition, the first transmission wheel 44 is tightly matched with the transmission belt 14, and the installation accuracy requirements of the motor and the fan are relatively low. Even when there is a large installation error between the motor and the fan, the transmission of the motor and the fan can be guaranteed.

[0073] like Figures 5 to 8 As shown, the air conditioner further includes a bearing (not shown in the figure) and a bearing mounting seat 43 for mounting the bearing, the fan shaft 42 is passed through the bearing, and the bearing mounting seat 43 is detachably connected to the lower base 3.

[0074] 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.

[0075] 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.

[0076] like Figures 5 to 8 As shown, the air conditioner 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.

[0077] 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 and a belt transmission assembly, 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 three 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 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), and 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 fan assembly (4) is mounted on the lower base (3); the first transmission wheel (44) is suitable for being connected to a 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); The motor assembly (1) comprises a motor body (11), a motor shaft (12) and at least three transmission shafts (15), wherein 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); The first transmission wheel (44) is in tight fit with the outer surface of the transmission belt (14).

2. The base assembly according to claim 1, characterized in that: The motor shaft (12) is located between all the second transmission wheels (16).

3. The base assembly according to claim 2, characterized in that: The distance between the center of the second transmission wheel (16) and the center of the motor shaft (12) is equal.

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. The base assembly according to claim 1, characterized in that: It also comprises a bearing and a bearing mounting seat (43) for mounting the bearing, 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).

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

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