Patent Description:
The air conditioner is a commonly used household appliance, and a conventional air conditioner, in which an air duct and a water duct system and a bottom case are taken as a whole, and the air conditioner is firstly assembled and fixed as a base part, and if washing is required, a professional is required to disassemble and clean each part of the air conditioner, which is very inconvenient.

However, during the long-term use of the air conditioner, foreign matter such as dust entering the air duct and the water duct from the air inlet makes the whole air duct and the water duct system contaminate seriously, and if the cleaning is not performed in time, the air conditioner will be harmed to the environment during the operation of the air conditioner, thus harming the health of the user.

For the convenience of unpick and wash, the patent No. <CIT> discloses a housing of an indoor unit of an air conditioner and an indoor unit of an air conditioner having same, which comprises an upper chassis, a lower chassis and a guide assembly, in which a mask is detachably mounted on the upper chassis, and a heat exchanger is mounted on the upper chassis. The blower is detachably mounted on the lower chassis. In the prior art, the heat exchanger is a water passage, the impeller below the heat exchanger forms an air passage, the blower is fixedly connected to the impeller, and the rotation of the blower drives the impeller to rotate, and therefore, when the blower is detached in the prior art. The fan and the impeller need to be dismounted together and then the contaminants in the impeller are cleaned, and this dismounting mode needs to dismount and clean the motor assembly together with the air duct component, which has the following problems: During cleaning, the sewage water can easily enter the motor part connected to the impeller to damage the motor water inlet; Alternatively, when the user cleans, it is forgotten to turn off the power supply of the fan, which may cause a situation in which the user touches electricity.

In order to solve the above-mentioned technical problem, Chinese patent document <CIT> discloses a wall-mounted air-conditioner indoor cabinet that facilitates disassembly, which comprises a cabinet and a chassis that are mutually engaged, in which the chassis is of a split type, and when cleaning, the cabinet is first removed and the fixing screw between the upper chassis and the lower chassis is disassembled. Then, the lower frame is dismounted, the fixing screw between the impeller and the shaft of the impeller motor is dismounted, and the upper and lower reinforcing rings of the first side support frame are continuously dismounted, so that the impeller can be easily dismounted. However, in the prior art, disassembly of the impeller and the impeller motor is troublesome, the screw needs to be disassembled first, and the reinforcing ring can only disassemble the impeller connected to the impeller motor, that is, the disassembly of the impeller and the motor is complicated. On the other hand, when cleaning, the user needs to disconnect the connecting electric wire between the motor of the fan and the electric power supply, and reconnecting the electric power supply wire may cause poor connection. This is lightly influencing the use, and heavily may cause damage to the motor, and even a situation where the user stores electricity occurs.

In order to conveniently and independently dismantle the impeller, Chinese patent <CIT> discloses a through-flow fan blade, in which metal support shafts are fixed at the center of circles of two annular intermediate disks on the outer side of the central section of the left and right ends of the fan blade. A magnetic ring matching the stator of the motor and concentric with the metal support shaft is disposed outside one of the annular middle disks, and the magnetic ring is integrally connected with the outer side surface of the annular center through injection molding, the magnetic ring is constituted by a rotating ring sleeve and a connecting ring that are integrally perpendicular to each other. However, such a through flow blade is only applicable to an air conditioner as disclosed in patent <CIT>, and is not applicable to an air conditioner which is commonly taken out by opening a panel. This is because, when a common air conditioner for opening and dismounting the through-flow blades by opening the panel needs to clean the blades, the blades are first moved by a certain distance in the direction of the end shaft of the blades and then removed from the opening of the panel in the radial direction of the blades. If the prior art is applied to the air conditioner with which the panel can be turned on and off, one end of the through-flow air vane is connected to the motor, and the other end is rotatably provided on the bottom case; when the air vane is axially separated from the motor, the air vane is close to the motor end to be suspended, and before the air vane is removed from the air conditioner in the radial direction. The windmill is close to the motor without support points, so that the windmill is skewed and dropped, which may cause the windmill to be damaged, and it is also difficult to align the stator of the motor with the magnetic ring during reinstallation, which makes it inconvenient to install after washing.

<CIT> discloses an air blower apparatus. The air blower apparatus is capable of increasing the air blowing capability without an increase in size of an electronic motor, and having a high assembling ability. An electronic motor is an axial gap electronic motor in which a rotor and a stator of the electronic motor are arranged opposedly with a predetermined gap along the rotation axis direction of the rotor, and coaxially supports an air blowing fan on an attaching surface of the rotor opposite to the stator.

The scope of the disclosure is defined by the claims.

The technical problem to be solved by the present invention lies in the problem that an impeller magnetic ring is suspended and connected to a motor in a related technology blower device, and an impeller is easily skewed and dropped during disassembly and assembly after the impeller is separated from the motor, thereby providing an impeller assembly for connecting the impeller and the motor.

Further, the air conditioner having the above-mentioned impeller assembly is provided.

An impeller assembly including: an impeller rotatably provided on a bottom case;.

Preferably, the impeller and the first magnetic coupling member are connected by a rotation shaft, and the rotation shaft is rotatably supported on the supporting structure.

Preferably, the supporting structure includes: a supporting shaft sleeve, in which an inner ring surface thereof is sleeved on an outer surface of the rotation shaft; and a rubber seat bracket fixedly connected to the supporting shaft sleeve, and the rubber seat bracket adapted to be fixedly mounted on the supporting seat.

Preferably, the supporting shaft sleeve includes at least two supporting arc structures, and at least two supporting arc structures of the at least two supporting arc structures are radially detachably composed of a supporting shaft sleeve having an inner annular ring; the rubber seat bracket is fixedly connected to a support arc sleeve of adjacent supporting seat.

Preferably, radial edges of two supporting arc structures of the at least two supporting arc structures respectively have butt joint portions; the butt joint portions are buckled with each other to form the supporting shaft sleeve.

Preferably, the rubber seat bracket is provided with a inserting portion cooperating with the supporting seat.

Preferably, the inserting portion includes: a limiting portion for defining a inserting depth of the supporting seat, and a guide part cooperating with a guide structure on a sidewall of the supporting seat.

Preferably, the first magnetic coupling member has a disk.

An end of the rotation shaft <NUM> close to the second magnetic coupling member has an elastic portion axially elastically deformable, the elastic portion being able to pass through a through hole provided in a center of the second magnetic coupling member by elastic deformation.

A diameter of the elastic portion before deformation is greater than a diameter of the through hole, and the diameter of the elastic portion after deformation is less than the diameter of the through hole.

A free end of the elastic portion has a guide part, and a diameter of the guide part before deformation is less than the through hole.

The second magnetic coupling member is a permanent magnet arranged with N poles and S poles alternately circumferentially.

The he first magnetic coupling member is integrally formed with the rotation shaft.

The disk extends vertically along its sidewall with an annular ring; an inner diameter of the annular ring is adapted for the second magnetic coupling member, the second magnetic coupling member inserts into the annular ring.

Preferably, a connecting hole fixedly connecting the rotation shaft is formed in a center of the disk; the impeller assembly further including a fastener which limits a rotation of the disk relative to the rotation shaft.

Preferably, the connecting hole and the rotation shaft are connected in a threaded manner.

Preferably, the impeller assembly includes a disc shaft arranged at a center of the disk extending along an axis of the disk, wherein one end of the disc shaft is connected to a central positioning hole of the second magnetic coupling member, and the other end of the disc shaft is coaxially connected to the rotation shaft without rotation.

Preferably, the disk is provided with a fan structure for facilitating heat dissipation.

Preferably, the first magnetic coupling member is integrally formed with the disc shaft and the rotation shaft.

Further, an air conditioner is provided, which includes a motor and the above-mentioned impeller assembly, and a second magnetic coupling member is provided on the motor.

The motor is an external rotor electric machine, and the second magnetic coupling member is fixedly connected to an outer rotor of the external rotor electric machine.

The present invention has the following advantages relative to the related technology:.

To illustrate the technical solutions in the embodiments of the present invention or in a related technology more clearly, the following briefly introduces the accompanying drawings required for describing the embodiments or a related technology. Obviously, the accompanying drawings in the following description are some embodiments of the present invention. For a person of ordinary skill in the art, other drawings can be obtained from these drawings without creative efforts.

Marking: <NUM>. an impeller; <NUM>, a magnetic coupling driver; <NUM>, a first magnetic coupling member; <NUM>, a second magnetic coupling member; <NUM>, Disk; <NUM>, through hole; <NUM>, a annular ring; <NUM>, a disc shaft; <NUM>, connecting holes; <NUM>, fasteners; <NUM>, supporting structure; <NUM>, the supporting shaft sleeve; <NUM>, an rubber seat bracket; <NUM>, inserting portion; <NUM>, supporting an arc structure; <NUM>: rotation shaft; <NUM>, an elastic portionportion; <NUM>, a motor; <NUM>, a central positioning hole; <NUM>, Fan structure; <NUM>, bottom case; <NUM>, supporting seat;.

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and obviously, the described embodiments are a part of the embodiments of the present invention rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present invention.

Moreover, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as no conflict is constituted between each other.

An impeller assembly provided by this embodiment includes: an impeller <NUM>, a magnetic coupling driver <NUM> and a supporting structure <NUM>, in which the impeller <NUM> is rotatably provided on a bottom case <NUM>; the magnetic coupling driver <NUM> drives the impeller <NUM> to rotate, and the magnetic coupling driver <NUM> has a first magnetic coupling member <NUM> and a second magnetic coupling member <NUM> connected to the impeller <NUM>, and the first magnetic coupling member <NUM> can move in an axial direction of the rotation shaft <NUM> relative to the second magnetic coupling member <NUM>; The supporting structure <NUM> at least provided on one end of the impeller <NUM> close to the magnetic coupling driver <NUM> and is fixed on a removable a supporting seat <NUM> relative to the magnetic coupling driver <NUM>.

The second magnetic coupling member <NUM> is arranged on the external rotor electric machine <NUM>, and when the impeller <NUM> transmitted and connected to the motor <NUM> in the air conditioner needs to be disassembled, the first magnetic coupling member <NUM> and the second magnetic coupling member <NUM> are axially separated, and the supporting structure <NUM> supports one end of the impeller <NUM> close to the magnetic coupling driver <NUM>; After the impeller <NUM> is moved axially away from the motor <NUM>, one end of the impeller <NUM> close to the magnetic coupling driver <NUM> has a supporting point without suspending the impeller <NUM>, thereby avoiding the problem of skew and drop of the impeller <NUM>. The motor <NUM> can be replaced with other drivers, and the impeller <NUM> can also be quickly separated from other drivers by using the impeller assembly of the present embodiment to dismount the impeller <NUM>.

In this embodiment, one end of the impeller <NUM> away from the magnetic coupling driver <NUM> may be directly connected to the bottom case <NUM> of the air conditioner, or may be connected to the bottom case <NUM> of the air conditioner through the supporting structure <NUM>.

The impeller <NUM> and the first magnetic coupling member <NUM> are connected via a rotation shaft <NUM>, and the rotation shaft <NUM> is rotatably supported on the supporting structure <NUM>, so that the impeller <NUM> does not interfere with the supporting structure <NUM> during rotation, thereby avoiding friction between the impeller <NUM> and the supporting structure <NUM> and improving rotation efficiency.

As shown in <FIG>, the supporting structure <NUM> includes: a supporting shaft sleeve <NUM>, an inner annular surface of which is sheathed on an outer surface of the rotation shaft <NUM>, and the rotation shaft <NUM> rotates in an inner annular surface thereof; and a rubber seat bracket <NUM> fixedly connected to the supporting shaft sleeve <NUM> and adapted to be fixedly mounted on the supporting seat <NUM>, the supporting seat <NUM> being a fixing member in the air conditioner, so as to reliably support the rotation shaft <NUM>. The inner ring surface of the supporting shaft sleeve <NUM> is made of a free lubricating material.

As shown in <FIG>, the supporting shaft sleeve <NUM> includes two supporting arc structures <NUM>, and the two supporting arc structures <NUM> detachably form the supporting shaft sleeve <NUM> with an inner annular ring in a radial direction. When the inner annular ring of the supporting shaft sleeve <NUM> is not directly sheathed into the rotation shaft <NUM> between the impeller <NUM> and the first magnetic coupling member <NUM>, the supporting arc structures <NUM> may be joined to form the supporting shaft sleeve <NUM> to surround the outer surface of the rotation shaft <NUM>. The rubber seat bracket <NUM> is fixedly connected to the supporting arc structures <NUM> adjacent to the supporting seat <NUM>; so that the rubber seat bracket <NUM> is mounted on the supporting seat <NUM> after the supporting arc structures <NUM> is spliced. The supporting shaft sleeve <NUM> may be constituted by three or more supporting arc structures <NUM>.

In the present embodiment, the two radial edges of the supporting arc structure <NUM> respectively have an butt joint portion, and the butt joint portion is buckled to each other to form the supporting shaft sleeve <NUM> having an inner annular surface, and the inner annular surface is buckled to the outer surface of the rotation shaft <NUM>.

As shown in <FIG>, the rubber seat bracket <NUM> is provided with a inserting portion <NUM> cooperating with the supporting seat <NUM>, that is, the rubber seat bracket <NUM> is fixed to the supporting seat <NUM> by means of quick connecting, so as to implement quick mounting.

In the present embodiment, the inserting portion <NUM> includes: a limiting portion for defining a inserting depth of the supporting seat <NUM>, and a guide part mating with a guide structure on the supporting seat <NUM>, The limiting part limits the inserting position of the rubber seat bracket <NUM>, and the guide part implements the insertion and guidance, and the limiting and guidance combine to accurately position and mount the rubber seat bracket <NUM>, thereby achieving precise assembly of the supporting structure <NUM>.

As shown in <FIG> and <FIG>, the first magnetic coupling member <NUM> has a disk <NUM> and an annular ring <NUM> extending perpendicularly along a sidewall of the disk <NUM>; The inner diameter of the annular ring <NUM> is suitable for the second magnetic coupling member <NUM> to penetrate into the annular ring <NUM>, so that the second magnetic coupling member <NUM> and the first magnetic coupling member <NUM> are coupled to each other to rotate the impeller <NUM>.

A connecting hole <NUM> fixedly connecting the rotation shaft <NUM> is formed in the center of the disk <NUM>, so that the first magnetic coupling member <NUM> is fixedly connected to the rotation shaft <NUM>. The impeller assembly further includes a fastener <NUM> that limits the rotation of the disk <NUM> relative to the rotation shaft <NUM> such that there is no relative rotation between the disk <NUM> and the rotation shaft <NUM> such that the rotation shaft <NUM> rotates under the driving of the second magnetic coupling member <NUM>.

As shown in <FIG> and <FIG>, the connecting hole <NUM> and the rotation shaft <NUM> are threadedly connected to each other, and the fastener <NUM> is threadedly connected to the rotation shaft <NUM> and press-fit the first magnetic coupling member <NUM> on the rotation shaft <NUM> to prevent the first magnetic coupling member <NUM> from rotating relative to the rotation shaft <NUM>. The fastener <NUM> is a nut or a self-locking nut.

The disk <NUM> is provided with a fan structure <NUM> for facilitating heat dissipation, and the magnetic coupling driver <NUM> and the electric appliance around the disk <NUM> have a good heat dissipation effect and extend the life of the machine.

The first magnetic coupling member <NUM> is formed integrally with the end of the impeller <NUM> by an injection molding member having a magnetic material, and this structure is magnetically arranged in both the axial direction and the radial direction of the impeller <NUM>. The second magnetic coupling member <NUM> is adsorbed and fixed to the first coupling member by an adsorbable material. The magnetic field is generated by energization in the motor and cooperates with the magnetic field charged in the first coupling member to rotate the impeller.

An impeller assembly provided by this embodiment differs from Embodiment <NUM> in that: As shown in <FIG>, a connecting hole <NUM> is not formed in the center of the disk <NUM>, but a disc shaft <NUM> extending along an axis in the center of the disk <NUM>. As shown in <FIG>, <FIG>, one end of the disc shaft <NUM> is connected to the central positioning hole <NUM> of the second magnetic coupling member <NUM>, so that the first magnetic coupling member <NUM> and the second magnetic coupling member <NUM> are positioned and connected, and the other end is connected coaxially without rotation with the rotation shaft <NUM>, so that the magnetic coupling driver <NUM> can drive the impeller <NUM> to rotate.

The disc shaft <NUM> is non-rotatably connected to the rotation shaft <NUM> by a fastener <NUM> such as a screw.

As a variant, the rotation shaft <NUM> is jointly connected to an end portion adjacent to the disc shaft <NUM>. As shown in <FIG>, an inner hexagonal structure is provided at an end portion of the rotation shaft <NUM>, an outer hexagonal structure is provided at an end portion of the disc shaft <NUM>, and the outer hexagonal structure on the bypass shaft is inserted into the inner hexagonal structure of the rotation shaft <NUM>, so the two are not rotatably jointly connected.

An impeller assembly provided by this embodiment differs from Embodiment <NUM> in that: The first magnetic coupling member <NUM> and the disc shaft <NUM>, and the rotation shaft <NUM> are integrally formed to facilitate assembly and reduce the number of parts.

In this embodiment, as shown in <FIG>, the supporting shaft sleeve <NUM> includes two supporting arc structures <NUM>, and the two supporting arc structures <NUM> detachably form the supporting shaft sleeve <NUM> having an inner annular ring in a radial direction. The two supporting arc structures <NUM> are centered on the rotation shaft <NUM> in the circumferential direction of the rotation shaft <NUM> and joined to form a complete supporting shaft sleeve <NUM> to surround the outer surface of the rotation shaft <NUM>.

An air conditioner provided in this embodiment includes an impeller <NUM> and a motor <NUM>. The motor <NUM> has a second magnetic coupling member <NUM>. The air conditioner has the impeller assembly described in Embodiment <NUM> or Embodiment <NUM> or Embodiment <NUM>. The supporting seat <NUM> is fixed to the bottom case <NUM> of the air conditioner, and the supporting seat <NUM> is fixedly connected to the supporting structure <NUM> for supporting the rotation shaft.

An air conditioner provided by this embodiment includes an impeller <NUM> and a motor <NUM>, where the impeller <NUM> is rotatably provided on a bottom case <NUM>; The magnetic coupling driver <NUM> includes a first magnetic coupling member <NUM> and a second magnetic coupling member <NUM>, and a support structure is provided on one end of the impeller <NUM> close to the first magnetic coupling member <NUM> and is fixed on a support detachable from the first magnetic coupling member <NUM>, as shown in <FIG>. The first magnetic coupling member <NUM> is a copper disk, and is arranged on an end portion of the impeller <NUM>, and the second magnetic coupling member <NUM> is a permanent magnet arranged with N poles and S poles alternately and circumferentially, as shown in <FIG>, the permanent magnet is arranged on an outer rotor of an external rotor electric machine, and the motor rotates to drive the second magnetic coupling member <NUM> rotation,the permanent magnet occurs relate movement with the copper disk, the two maintain a certain rotational speed difference, the copper disk cuts the magnetic induction line, and an induction vortex of a corresponding pole number is generated on the copper disk, and the induction vortex generates a corresponding induction magnetic field. The induced magnetic field generated by the turbulence and the magnetic field generated by the permanent magnet are coupled by a magnetic field so that there is an interaction between the two, thereby driving the impeller <NUM> to rotate.

The impeller <NUM> is connected to the first magnetic coupling member <NUM> via a rotation shaft <NUM>, the first magnetic coupling member <NUM> is integrally formed with the rotation shaft <NUM>, and the rotation shaft <NUM> is rotatably supported on the supporting structure <NUM>. One end of the rotation shaft <NUM> close to the second magnetic coupling member <NUM> has an axially elastically deformable elastic portion <NUM> adapted to pass through the through hole <NUM> disposed in the center of the second magnetic coupling member <NUM> by elastic deformation. The diameter of the elastic portion <NUM> is greater than the diameter of the through hole <NUM> before deformation and less than the diameter of the through hole <NUM> after deformation. The free end of the elastic portion <NUM> has a guiding part, and the diameter of the guiding part before being undeformed is smaller than that of the through hole <NUM>, that is, when installed, after the guiding part first passes through the through hole <NUM>, the guiding part is pulled through the guiding part of the part, so that the elastic portion <NUM> is elastically deformed under the action of pulling force. The diameter is reduced to be greater than the diameter of the through hole <NUM> and then passes through the through hole <NUM> to function as a supporting and limiting impeller. During dismounting, when the impeller or the entire air duct system is pulled outward, the elastic portion of the rotation shaft is deformed by the force, so that the elastic portion is disengaged from the through hole, and the impeller or the entire air duct system can be pulled out.

Claim 1:
An impeller assembly, comprising:
an impeller (<NUM>) rotatably provided on a bottom case (<NUM>);
a magnetic coupling driver (<NUM>) for driving the impeller (<NUM>) to rotate, having a first magnetic coupling member (<NUM>) and a second magnetic coupling member (<NUM>) connected to the impeller (<NUM>), the first magnetic coupling member (<NUM>) being movable in an axial direction of the impeller (<NUM>) relative to the second magnetic coupling member (<NUM>);
characterized in that the impeller assembly further comprises:
a supporting structure (<NUM>) at least provided on one end of the impeller (<NUM>) close to the magnetic coupling driver (<NUM>) and fixed on a supporting seat (<NUM>), the magnetic coupling driver (<NUM>) is detachable relative to the supporting seat (<NUM>), the impeller (<NUM>) and the first magnetic coupling member (<NUM>) are connected by a rotation shaft (<NUM>), and the rotation shaft (<NUM>) is rotated relative to the supporting structure (<NUM>), the supporting structure (<NUM>) comprises: a supporting shaft sleeve (<NUM>), in which an inner ring surface thereof is sleeved on an outer surface of the rotation shaft (<NUM>); and a rubber seat bracket (<NUM>) fixedly connected to the supporting shaft sleeve (<NUM>), and the rubber seat bracket (<NUM>) adapted to be fixedly mounted on the supporting seat (<NUM>), the first magnetic coupling member (<NUM>) is integrally formed or fastened to the rotation shaft (<NUM>), the supporting seat (<NUM>) is configured to be fixed on the bottom case (<NUM>).