CN114383201A - Base assembly and air conditioner - Google Patents

Abstract

The invention provides a base assembly and an air conditioner, and particularly relates to the technical field of air conditioners. The base assembly comprises an upper base assembly, a lower base assembly and a belt transmission assembly, wherein the upper base assembly is detachably connected with the lower base assembly, the belt transmission assembly comprises 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 wheels are rotatably connected to the upper base assembly, and all the first transmission wheels and all the second transmission wheels are in transmission connection through the transmission belt. Therefore, when the upper base assembly and the lower base assembly are disassembled, the tensioning matching of the first driving wheel and the second driving wheel with the driving belt is relieved, and unnecessary troubles caused by disassembling the transmission mechanism are avoided. Through the setting of at least three second drive wheel, increased the length of drive belt, the regional area is surrounded to the increase drive belt, has increased the adjustable space that fan subassembly and drive belt are connected, has reduced the probability that the drive belt self-interference.

Description

Base assembly and air conditioner

Technical Field

The invention relates to the technical field of air conditioners, in particular to a base assembly and an air conditioner.

Background

At present, for the convenience of washing, the upper base subassembly and the lower base subassembly can the split in the air conditioner, but, install under on the base usually to the drive mechanism of fan, in order to realize tearing open the fan and washing, need carry out fan drive mechanism's dismantlement in advance after the base is dismantled down, lead to unnecessary troublesome.

Disclosure of Invention

The invention aims to solve the technical problem of unnecessary trouble caused by disassembling a transmission mechanism when the fan is disassembled in the prior art to a certain extent.

In order to solve the above problems, the present invention provides a base assembly, which includes an upper base assembly, a lower base assembly and a belt transmission assembly, wherein the upper base assembly is detachably connected to the lower base assembly, 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 wheels are rotatably connected to the upper base assembly, and all the first transmission wheels and the second transmission wheels are in transmission connection through the transmission belt.

Therefore, the transmission belt assembly is used as a transmission mechanism, and 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 first transmission wheel and the second transmission wheel are released from being matched with the transmission belt in a tensioning mode. And unnecessary troubles caused by disassembling the transmission mechanism after the upper base assembly and the lower base assembly are disassembled are avoided. In addition, through the arrangement of at least three second transmission wheels, the area of a driving belt surrounding area can be increased, the adjustable space for connecting the fan assembly and the driving belt is increased, and when the fan assembly is matched with the outer surface of the driving belt, the probability of self interference of the driving belt caused by too small area of the driving belt surrounding area can be reduced.

Optionally, the upper base assembly comprises an upper base and a motor assembly, the lower base assembly comprises a lower base and a fan assembly, the upper base is detachably connected with the lower base, the motor assembly is mounted on the upper base, the fan assembly is mounted on the lower base, the first driving wheel is suitable for being connected with a fan rotating shaft of the fan assembly, and the second driving wheel is suitable for being rotatably connected to the upper base and/or the motor assembly.

Therefore, the fan assembly is arranged on the lower base, the motor assembly is arranged on the upper base, when the fan body needs to be cleaned, the lower base can be directly disassembled, the first driving wheel, the second driving wheel and the driving belt are automatically released from tensioning and matching, the upper base is still hung on a wall body, the motor body can be prevented from being disassembled, the disassembling and assembling procedures are reduced, and unnecessary troubles are avoided. In addition, because go up the base with the connection between the base is unavoidable to have the error, and the motor install in on going up the base, inevitably can cause motor shaft with the axiality between the fan pivot is lower, and adopts drive belt drive's mode, works as go up the base with when having great connection error between the base, can effectively avoid motor shaft and fan pivot to be connected on the coaxial line, guarantee normal operating between motor and the fan.

Optionally, the motor assembly includes a motor body, a motor shaft and at least two transmission shafts, the transmission shafts are rotatably connected to the motor body or the upper base, one of the second transmission wheels is connected to the motor shaft, and the other second transmission wheels are respectively connected to the transmission shafts.

Therefore, the second transmission wheels are arranged on the motor rotating shaft, so that the number of the transmission shafts is smaller than that of the second transmission wheels, and the transmission of the transmission belt is realized by fully utilizing the structure of the motor. When the number of the transmission shafts is two, a second transmission wheel can be arranged on the rotating shaft of the motor, the area of the area surrounded by the transmission belt can be increased, and the flexibility of the transmission belt and the fan assembly in matching is increased.

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

From this, through with the second drive wheel set up in on the transmission shaft, can avoid occupying the region at motor center, when fan subassembly with during the surface tensioning cooperation of drive belt, can avoid the drive belt surrounds regional area and causes the drive belt self-interference too little.

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

Therefore, the motor rotating shaft is arranged between the areas surrounded by all the second driving wheels, so that the length of the driving belt which can act with the first driving wheel is increased, and the space can be saved.

Optionally, the distance between the center of the second transmission wheel and the center of the motor rotating shaft is equal.

Therefore, the acting force of the driving belt on the motor can be homogenized through the second driving wheels which are symmetrically arranged, and the motor deflection caused by the unilateral stress of the motor is avoided.

Optionally, the motor assembly further comprises a first gear and a second gear; the first gear is connected with the motor rotating shaft, the second gear is connected with one of the transmission shafts, and the first gear is meshed with the second gear.

Therefore, the eccentric output of one transmission shaft is realized through the gear assembly, so that the length of the transmission belt can be increased, and the condition that the transmission belt is arranged on one side of the motor and the stress of the motor is unbalanced due to the fact that the second transmission wheel is directly driven by the rotating shaft of the motor is avoided. The motor shaft can be prevented from directly bearing the tension of the transmission belt through the eccentric output of one transmission shaft.

Optionally, motor element still includes the protection casing, the protection casing with motor body can dismantle the connection, the protection shroud is located first gear with outside the second gear, the transmission shaft stretches out outside the protection casing.

Therefore, the first gear and the second gear can be hidden through the arrangement of the protective cover, and certain risks caused by the fact that the first gear and the second gear are exposed are avoided.

Optionally, the motor cover further comprises a motor gland, the upper base is provided with a containing part, at least part of the motor body is contained in the containing part, the motor gland is arranged on the motor body, the motor gland and the containing part surround a space for installing the motor body, and the motor gland is detachably connected with the upper base.

Therefore, the motor gland is detachably connected with the upper base, so that the motor body is installed on the upper base, and when the fan is disassembled and washed, the motor assembly is fixed on the upper base through the motor gland, and the motor body is prevented from falling down.

Optionally, the fan assembly further comprises a bearing and a bearing mounting seat for mounting the bearing, a fan rotating shaft of the fan assembly penetrates through the bearing, and the bearing mounting seat is detachably connected with the lower base.

Therefore, the bearing mounting seat is detachably connected with the lower base, so that the through-flow fan blade is convenient to disassemble and wash while being fixed.

The invention also provides an air conditioner, which comprises the base assembly. The air conditioner has the same beneficial effects as the base assembly, and the description is omitted.

Drawings

FIG. 1 is a schematic view of an air conditioner according to an embodiment of the present invention after a lower base is separated from an upper base;

FIG. 2 is a schematic view of a motor assembly and fan assembly in accordance with an embodiment of the present invention;

FIG. 3 is a partial view at A of FIG. 2 of the present invention;

FIG. 4 is a schematic structural view of the protective cover of the embodiment of the present invention after being disassembled;

FIG. 5 is an exploded view of a lower base and fan assembly in an embodiment of the present invention;

FIG. 6 is a partial view at B of FIG. 5 of the present invention;

FIG. 7 is a partial view of the present invention at C of FIG. 5;

FIG. 8 is a schematic view of the mating of the upper base and the motor assembly in an embodiment of the invention;

fig. 9 is a partial view of the invention at D in fig. 8.

Description of the labeling:

1-a motor component, 2-an upper base, 3-a lower base, 4-a fan component, 11-a motor body, 12-a motor rotating shaft, 13-a first gear, 14-a transmission belt, 15-a transmission shaft, 16-a second transmission wheel, 17-a second gear, 18-a protective cover, 19-a bearing, 181-a plane limiting structure, 182-a limiting surface structure, 21-a motor accommodating part, 22-a motor gland, 221-a limiting port structure, 23-a limiting groove, 31-a jack structure, 41-a fan body, 42-a fan rotating shaft, 43-a bearing mounting seat, 431-a buckle structure, 44-a first transmission wheel and 45-a bearing seat gland.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the terms "an embodiment," "one embodiment," and "one implementation," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or implementation is included in at least one embodiment or example implementation of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or implementation. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.

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

The invention provides a base assembly, as shown in fig. 1 to 4, which comprises an upper base assembly, a lower base assembly and a belt transmission assembly, wherein the upper base assembly is detachably connected with the lower base assembly, the belt transmission assembly comprises 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 wheels are rotatably connected to the upper base assembly, and all the first transmission wheels and all the second transmission wheels are in transmission connection through the transmission belt.

It should be noted that the upper base assembly may include an upper base 2 and a motor assembly 1 or a mounting member and the like disposed on the upper base; the lower base assembly may include a lower base 3 and a fan assembly 4 or a mounting member, etc. provided on the upper base. The first driving wheel 44 can be mounted on the lower base 3, the fan assembly 4 or a mounting part, and only the first driving wheel 44 needs to be enabled to rotate; the second driving wheel 16 can be mounted on the upper base 2, the motor assembly 1 or the mounting part, and only the second driving wheel 16 needs to be rotatable. Here, there may be three or more second transmission wheels 16.

This has the advantage of using a belt assembly as the drive mechanism, which when the upper and lower base assemblies are mounted together, enables the first and second drive wheels 44 and 16, respectively, to engage the belt 14; releasing the first drive wheel 44 and the second drive wheel 16 from tensioning engagement with the drive belt 14 is achieved when the upper and lower base assemblies are disassembled. And unnecessary troubles caused by disassembling the transmission mechanism after the upper base assembly and the lower base assembly are disassembled are avoided. In addition, through the arrangement of at least three second transmission wheels 16, the area of the surrounding area of the transmission belt 14 can be increased, the adjustable space for connecting the fan assembly 4 and the transmission belt 14 is increased, and when the fan assembly 4 is matched with the outer surface of the transmission belt 14, the probability that the self-interference of the transmission belt is caused due to the fact that the area of the surrounding area of the transmission belt 14 is too small can be reduced.

As shown in fig. 1 to 3, 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 is detachably connected to the lower base 3, the motor assembly 1 is mounted on the upper base 2, the fan assembly 4 is mounted on the lower base 3, the first driving wheel 44 is adapted to be connected to a fan rotating shaft 42 of the fan assembly 4, and the second driving wheel 16 is adapted to be rotatably connected to the upper base 2 and/or the motor assembly 1.

It should be noted that the blower assembly 4 includes a blower body 41 and a blower rotating shaft 42 connected to the blower body 41, the upper base 2 and the lower base 3 may be fastened and connected by a buckle or a screw, the upper base 2 has a position where the motor body 11 is installed, and the lower base 3 has a space for accommodating the blower body 41. The fan body 41 may be a cross-flow fan blade. The first driving wheel 44 and the fan rotating shaft 42 can be in key connection, interference fit connection or integral connection. An inner flat key can be arranged on the first driving wheel 44, an outer flat key is arranged on the fan rotating shaft 42, and the fan rotating shaft 42 is inserted into the first driving wheel 44 to realize the matching of the inner flat key and the outer flat key. Of course, the first driving wheel 44 and the fan rotating shaft 42 may be integrally formed.

The motor may drive the second drive wheel 16 of the belt drive directly or may drive the belt drive via other intermediate drive mechanisms. In one embodiment, the second transmission wheel 16 may be mounted only on the upper base 2 or the motor assembly 1; in one embodiment, the second transmission wheel 16 may be mounted only on the upper base 2 and the motor assembly 1.

When the fan is installed, the motor body 11 is fixed on the upper base 2 through a fixing structure, then the fan body 41 is installed on the lower base 3, so that the transmission belt 14 is respectively in tension fit with the first transmission wheel 44 and the second transmission wheel 16, and finally the lower base 3 and the upper base 2 are fixed. When the lower base 3 is disassembled, the transmission belt 14 can be released from being respectively matched with the first transmission wheel 44 and the second transmission wheel 16 in a tensioning way.

The advantage of this arrangement is that the fan assembly 4 is mounted on the lower base 3 and the motor assembly 1 is mounted on the upper base 2, so that when the fan body 41 needs to be cleaned, the lower base 3 can be directly removed, the first driving wheel 44, the second driving wheel 16 and the driving belt 14 automatically release the tension fit, the upper base 2 is still hung on the wall, and the motor body 11 can be prevented from being removed, thereby reducing the number of steps for removing the fan assembly and avoiding unnecessary trouble. In addition, because go up base 2 with connect unavoidable between the base 3 has the error, and the motor install in on going up the base, inevitably can cause motor shaft 12 with axiality between the fan pivot 42 is lower, and adopts drive belt drive's mode, works as go up base 2 with when having great connection error between the base 3 down, can effectively avoid motor shaft 12 and fan pivot 42 to be connected on the coaxial line, guarantee normal operating between motor and the fan.

It should be noted that the second transmission wheel 16 is in tension fit with the inner surface of the transmission belt 14, the upper base 2 and the lower base 3 can be fastened and connected by a buckle or a screw, the upper base 2 has a position where the motor body 11 is installed, and the lower base 3 has a space for accommodating the blower body 41. When the fan is installed, the motor body 11 is fixed on the upper base 2 through a fixing structure, then the fan assembly 4 is installed on the lower base 3, the driving belt 14 is in tension fit with the fan assembly 4, and finally the lower base 3 is fixed with the upper base 2. When the fan assembly 4 is disassembled, 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 runs, the driving belt 14 is driven to rotate, and the fan assembly 4 is driven to rotate through the driving belt 14. The number of the second transmission wheels 16 can be 3, 4 or more, the number of the second transmission wheels 16 depends on the actual size of the motor, and the distance between the centers of the adjacent second transmission wheels 16 is more than or equal to 40 mm.

Because go up base 2 with connect unavoidable between the lower base 3 has the error, and the motor install in on going up the base, the unavoidable can cause motor shaft 12 with axiality between the fan pivot 42 is lower, and adopts drive belt drive's mode, works as go up base 2 with when having great connection error between the lower base 3, can effectively avoid motor shaft 12 and fan pivot 42 to be connected on the coaxial line, guarantee normal operating between motor and the fan.

In addition, the fan assembly 4 is arranged on the lower base 3, the motor assembly 1 is arranged on the upper base 2, when the fan assembly 4 needs to be disassembled and washed, the lower base 3 is separated from the upper base 2, the first driving wheel 44 is automatically separated from the driving belt 14, the upper base 2 is still hung on a wall, the motor body 11 can be prevented from being disassembled, the disassembling and assembling procedures are reduced, and unnecessary troubles are avoided.

In one embodiment, the motor assembly 1 includes a motor body 11, a motor shaft 12 and at least two transmission shafts 15, the transmission shafts 15 are rotatably connected to the motor body 11 or the upper base 2, one of the second transmission wheels 16 is connected to the motor shaft 12, and the other second transmission wheels 16 are respectively connected to the transmission shafts 15.

In one embodiment, the transmission shafts 15 may be rotatably connected to the motor body 11, one of the second transmission wheels 16 may be integrally connected, keyed or interference-fit connected with the motor shaft 12, and the other second transmission wheels 16 may be respectively integrally connected, keyed or interference-fit connected with the transmission shafts 15. In one embodiment, the transmission shaft 15 can be rotatably connected to the motor body 11, and all the second transmission wheels 16 are connected with the transmission shaft 15 integrally, in a key connection or in an interference fit manner. In one embodiment, the transmission shafts 15 may be rotatably connected to the upper base 2, one of the second transmission wheels 16 may be integrally connected, keyed or interference-fit connected with the motor shaft 12, and the other second transmission wheels 16 may be respectively integrally connected, keyed or interference-fit connected with the transmission shafts 15. Here, the end of the motor body 11 is provided with a structure suitable for mounting the transmission shaft 15, for example, the transmission shaft 15 can be inserted into the motor body 11, and a limit structure is provided on the transmission shaft 15, and cooperates with the end of the motor body 11 to limit the displacement of the transmission shaft 15 in the axial direction thereof. An inner flat key can be arranged on the second transmission wheel 16, an outer flat key is arranged on the transmission shaft 15, and the transmission shaft 15 is inserted into the second transmission wheel 16 to realize the matching of the inner flat key and the outer flat key. When there are three second transmission wheels 16, the motor shaft 12 is directly in driving connection with 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 at the same radial side of the motor shaft 12.

This has the advantage that the structure of the motor itself is fully utilized to realize the transmission of the belt by mounting one of the second transmission wheels 16 on the motor shaft 12 such that the number of the transmission shafts 15 is smaller than the number of the second transmission wheels 16. When there are two transmission shafts 15, a second transmission wheel 16 can be arranged on the motor rotating shaft, so that the area of the area surrounded by the transmission belt 14 can be increased, and the flexibility of the transmission belt 14 and the fan assembly 4 in matching is increased.

In this embodiment, as shown in fig. 4, the motor assembly 1 includes a motor body 11, a motor shaft 12 and at least three transmission shafts 15, the transmission shafts 15 are rotatably connected to the motor body 11, the second transmission wheel 16 is connected to the transmission shafts 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 that of the second transmission wheels 16, each of the transmission shafts 15 is sleeved with one of the second transmission wheels 16, and the motor rotating shaft 12 can be in driving connection with one of the transmission shafts 15 through cooperation of a gear assembly and other intermediate structures. Therefore, the second driving wheel 16 is arranged on the transmission shaft 15, the area occupying the center of the motor can be avoided, and when the fan assembly 4 is in tension fit with the outer surface of the driving belt 14, the area of the area surrounded by the driving belt 14 can be avoided from being too small to cause self interference of the driving belt 14.

As shown in fig. 4, 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 all the areas enclosed by the second drive wheels 16, the length of the drive belt available for interaction with the first drive wheel 44 is increased, which also results in a further space saving.

Preferably, the distance between the center of the second transmission wheel 16 and the center of the motor rotating shaft 12 is equal. That is, all the second transmission wheels 16 are arranged along the circumferential array of the motor, the centers of all the adjacent second transmission wheels 16 are connected to form a regular polygon, and the transmission shaft 15 corresponds to the position of the second transmission wheel 16. Therefore, the acting force of the driving belt 14 on the motor can be uniformized through the symmetrically arranged second driving wheels 16, and the motor deflection caused by the unilateral stress of the motor is avoided.

As shown in fig. 4, the motor assembly further includes a first gear 13 and a second gear 17; the first gear 13 is connected with the motor rotating shaft 12, the second gear 17 is connected with one of the transmission shafts 15, and the first gear 13 is meshed with the second gear 17.

It should be noted that, the first gear 13 and the motor rotating shaft 12 may also be an integrally formed structure, and the second gear 17 and one of the transmission shafts 15 may also be an integrally formed structure, when the motor operates, the first gear 13 rotates along with the motor rotating shaft 12, the first gear 13 drives the second gear 17 to rotate, 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 along with the transmission shaft 15, thereby realizing the driving of the transmission belt 14.

The advantage of this setting is that the eccentric output of one of the transmission shafts 15 is realized through the gear assembly, which can increase the length of the transmission belt, and avoid the situation that the motor shaft 12 directly drives the second transmission wheel 16 to cause the transmission belt to be arranged on one side of the motor, which leads to the unbalanced stress of the motor. The direct tension of the drive belt 14 on the motor shaft can be avoided by an eccentric output of the drive shaft 15.

As shown in fig. 1 to 4, the motor assembly 1 further includes at least two bearings 19, the bearings 19 are sleeved on the transmission shaft 15, the bearings 19 are respectively disposed on two axial sides of the second gear 17, two axial ends of one of the bearings 19 are respectively contacted with the motor body 11 and the second gear 17, and two axial ends of one of the bearings 19 are respectively contacted with the second gear 17 and the protection cover 18. Thus, by the engagement of the protector 18 and the bearing 19, the protector 18 can press the second gear 17 when the protector 18 is mounted on the motor body 11, thereby preventing the second gear 17 from jumping. Furthermore, by providing the bearing 19, wear between the second gear 17 and the motor body 11 can also be reduced.

As shown in fig. 3, the motor assembly further includes a protective cover 18, the protective cover 18 is detachably connected to the motor body 11, the protective cover 18 covers the first gear 13 and the second gear 17, and the transmission shaft 15 extends out of the protective cover 18.

It should be noted that, a hole for extending the transmission shaft 15 is formed in the protective cover 18, 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 rotate freely, and when the protective cover 18 is mounted on the motor body 11, the second transmission wheel 16 is located outside the protective cover 18.

Therefore, the first gear 13 and the second gear 17 can be hidden by the arrangement of the protective cover 18, and certain risks caused by the fact that the first gear 13 and the second gear 17 are exposed are avoided.

As shown in fig. 3, an end surface of the motor shaft 12 on the side away from the motor body 11 is not exposed to an end surface of the protection cover 18 on the side away from the motor body 11. It should be noted that an end surface of the motor rotating shaft 12 on a side away from the motor body 11 may be hidden in the protecting cover 18, or may be flush with an end surface of the protecting cover 18 on a side away from the motor body 11. On the one hand, can hide motor shaft 12, avoid unnecessary risk, on the other hand, can avoid motor shaft 12 stretches into the region that drive belt 14 surrounds causes the interference to the installation of fan pivot 42.

As shown in fig. 8 and 9, the air conditioner further includes a motor cover 22, 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 surround to form a space for mounting the motor body 11, and the motor cover 22 is detachably connected to the upper base 2.

It should be noted that the motor cover 22 and the upper base 2 may be connected by screws or snaps, and when the motor cover 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 with a circumferential profile of the motor body 11. The contour of the motor gland 22 near one end of the motor body 11 is also matched with the circumferential contour of the motor body 11, when the air conditioner is installed, the motor body 11 is firstly placed in the motor accommodating part 21, then the motor gland 22 is pressed on the motor body 11, and the motor gland 22 is fixed on the upper base 2, so that the motor body 11 is fixed.

Therefore, the motor gland 22 is detachably connected with the upper base 2, so that the motor body 11 is installed on the upper base 2, and when the fan is disassembled and washed, the motor assembly 1 is fixed on the upper base 2 through the motor gland 22, and the motor body 11 is prevented from falling down.

As shown in fig. 8 and 9, the protective cover 18 is provided with a planar limiting structure 181, the motor gland 22 is provided with a limiting opening structure 221, and the planar limiting structure 181 is attached to the limiting opening structure 221. Here, the plane limiting structure 181 may be perpendicular to an axial end surface of the motor, or may be inclined with respect to the axial end surface of the motor. When the motor gland 22 is mounted on the upper base 2, the plane limiting structure 181 is attached to the limiting port structure 221, so that the motor body 11 can be prevented from rotating circumferentially.

As shown in fig. 8 and 9, the protective cover 18 is further provided with a limiting surface structure 182, the base is provided with a limiting groove 23, the limiting surface structure 182 is attached to the bottom of the limiting groove 23, the cross section of the limiting groove 23 can be arc-shaped or rectangular, the limiting surface structure 182 is the same as the cross section of the limiting groove 23, and the motor is more stably mounted by matching the limiting groove 23 with the limiting surface structure 182, so that the motor deflection caused by the tension of the transmission belt 14 after being stressed is avoided.

As shown in fig. 5 to 8, the blower assembly 4 includes a blower body 41, a blower rotating shaft 42 and a first driving wheel 44, the blower rotating shaft 42 is disposed at two axial ends of the blower body 41, the first driving wheel 44 is connected to the blower rotating shaft 42, and the first driving wheel 44 is in tensioning fit with the circumferential outer surface of the driving belt 14.

It should be noted that the fan body 41 may be a cross-flow fan blade, and the first driving wheel 44 and the fan rotating shaft 42 may also be integrally connected. When installing, can with fan body 41 places on the base of air conditioner, then it is right fan pivot 42 fixes, then is fixed in the base with the motor on, first drive wheel 44 with drive belt 14 effect, first drive wheel 44 to the regional indent that drive belt 14 surrounds makes drive belt 14 with first drive wheel 44 tensioning cooperation. When the motor runs, the driving belt 14 is driven to rotate, and then the driving belt 14 drives the fan rotating shaft 42 to rotate, so that the fan body 41 is driven. At this time, the blower body 41 and the motor shaft 12 are not connected in the axial direction.

The advantage that sets up like this lies in, and the motor drives the fan through drive belt transmission's mode, avoids motor shaft 12 is in motor shaft 12's axial direction with fan pivot 42 is connected or spacing, when unpicking and washing the fan, can also dismantle the motor to can reduce the dismouting process. In addition, the first driving wheel 44 is in tension fit with the driving belt 14, so that the requirement on the installation accuracy of the motor and the fan is low, and the transmission of the motor and the fan can be ensured even when the motor and the fan have large installation errors.

As shown in fig. 5 to 8, the air conditioner further includes a bearing (not shown in the figures) and a bearing mounting seat 43 for mounting the bearing, the blower rotating shaft 42 is inserted into the bearing, and the bearing mounting seat 43 is detachably connected with the lower base 3.

It should be noted that the bearing is used for matching with the fan rotating shaft 42 to reduce the rotating friction between the fan rotating shaft 42 and the bearing mounting seat 43, and the bearing mounting seat 43 is provided with a bearing accommodating portion in which the bearing is embedded. Be provided with eye-splice structure 431 on the bearing mount pad 43 be provided with on the lower base 3 with eye-splice structure 431 complex jack structure 31, eye-splice structure 431 with jack structure 31 joint cooperation. When the cross-flow fan blade is installed, the bearing is installed in the bearing accommodating part, then the fan rotating shaft 42 penetrates through the bearing, and finally the cross-flow fan blade and the bearing installation seat 43 are installed on the lower base 3 together.

The through-flow fan blade fixing device has the advantages that the bearing mounting seat 43 is detachably connected with the lower base 3, so that the through-flow fan blade is convenient to disassemble and wash while the through-flow fan blade is fixed.

As shown in fig. 5 to 8, the air conditioner further includes a bearing seat cover 45, the bearing seat cover 45 is covered on the bearing mounting seat 43, and the bearing seat cover 45 is detachably connected with the lower base 3. Bearing frame gland 45 can with 3 joint of lower base or screw fastening connection, bearing frame gland 45 is close to the shape of bearing mount pad 43 one end with the profile phase-match of bearing mount pad 43, will when bearing frame gland 45 install in when lower base 3 is last, further will bearing frame gland 45 press down in on the bearing mount pad 43, make bearing frame gland 45 with the laminating of bearing mount pad 43, simultaneously, make bearing frame gland 45 with lower base 3 is connected, and the realization is right bearing mount pad 43's further reinforcement avoids bearing mount pad 43's rocking.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (11)

1. The utility model provides a base subassembly, its characterized in that, includes upper base subassembly, lower base subassembly and belt drive subassembly, upper base subassembly with lower base subassembly can dismantle the connection, belt drive subassembly includes first drive wheel (44), drive belt (14) and at least three second drive wheel (16), first drive wheel (44) rotate connect in on the lower base subassembly, second drive wheel (16) rotate connect in on the upper base subassembly, all first drive wheel (44) with second drive wheel (16) pass through drive belt (14) transmission is connected.

2. The base assembly according to claim 1, characterized in that 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) is detachably connected with the lower base (3), the motor assembly (1) is mounted on the upper base (2), the fan assembly (4) is mounted on the lower base (3), the first driving wheel (44) is suitable for being connected with a fan rotating shaft (42) of the fan assembly (4), and the second driving wheel (16) is suitable for being rotatably connected with the upper base (2) and/or the motor assembly (1).

3. The base assembly according to claim 2, wherein the motor assembly (1) comprises a motor body (11), a motor rotating shaft (12) and at least two transmission shafts (15), the transmission shafts (15) are rotatably connected to the motor body (11) or the upper base (2), one of the second transmission wheels (16) is connected to the motor rotating shaft (12), and the other second transmission wheels (16) are respectively connected to the transmission shafts (15).

4. The base assembly of claim 2, wherein the motor assembly (1) comprises a motor body (11), a motor shaft (12) and at least three transmission shafts (15), the transmission shafts (15) are rotatably connected to the motor body (11), the second transmission wheel (16) is connected to the transmission shafts (15), and the motor shaft (12) is drivingly connected to one of the transmission shafts (15).

5. The foot assembly according to claim 4, wherein the motor shaft (12) is located between all of the second drive wheels (16).

6. The foot assembly according to claim 5, characterized in that the distance between the centers of the different second transmission wheels (16) and the motor shaft (12) is equal.

7. The base assembly of claim 3, wherein the motor assembly (1) further comprises a first gear (13) and a second gear (17); the first gear (13) is connected with the motor rotating shaft (12), the second gear (17) is connected with one of the transmission shafts (15), and the first gear (13) is meshed with the second gear (17).

8. The base assembly according to claim 7, wherein the motor assembly (1) further comprises a protective cover (18), the protective cover (18) is detachably connected with the motor body (11), the protective cover (18) is covered outside the first gear (13) and the second gear (17), and the transmission shaft (15) extends out of the protective cover (18).

9. The base assembly of claim 8, further comprising a motor cover (22), wherein the upper base (2) has 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) surround a space for installing the motor body (11), and the motor cover (22) is detachably connected to the upper base (2).

10. The base assembly according to claim 2, further comprising a bearing and a bearing mounting seat (43) for bearing installation, wherein the fan rotating shaft (42) of the fan assembly (4) is arranged in the bearing in a penetrating manner, and the bearing mounting seat (43) is detachably connected with the lower base (3).

11. An air conditioner comprising the base assembly of any one of claims 1-10.

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