CN108566035A - The motor of dryer and dryer with it - Google Patents

Abstract

The invention discloses a kind of motor of dryer and with its dryer, the motor of the dryer includes：Shell；Stator, the stator are located in the shell；Rotor, the rotor are rotatably arranged in the shell, and the rotor has the armature spindle that a part stretches out the shell；Damper pulley, the damper pulley are mounted on the armature spindle and are spaced setting in the axial direction of the armature spindle with the shell.The motor of dryer according to the ... of the embodiment of the present invention has easy to use, high reliability.

Description

Motor of clothes dryer and clothes dryer having same

technical field

The invention relates to the technical field of electric appliance manufacturing, in particular to a motor of a clothes dryer and a clothes dryer having the same.

Background technique

In the clothes dryer in the related art, in order to reduce the vibration noise generated when the motor is running, it is necessary to install a shock absorbing ring on the end cover of the motor. This way of installing the damping ring will cause a large force on the pulley of the rotor shaft of the motor, which will easily deform the rotor shaft, which will easily cause the belt to break and affect the normal use of the motor.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a motor for a clothes dryer, which has the advantages of convenient use and high reliability.

The invention also proposes a clothes dryer having the motor of the clothes dryer.

In order to achieve the above object, according to the embodiment of the first aspect of the present invention, a motor of a clothes dryer is provided, and the motor of the clothes dryer includes: a housing; a stator, the stator is arranged in the housing; a rotor, The rotor is rotatably arranged in the housing, and the rotor has a rotor shaft with a part protruding from the housing; a damping pulley is installed on the rotor shaft and is connected to the The housings are arranged at intervals in the axial direction of the rotor shaft.

The motor of the clothes dryer according to the embodiment of the present invention has the advantages of convenient use and high reliability.

In addition, the motor of the clothes dryer according to the above embodiments of the present invention may also have the following additional technical features:

According to an embodiment of the present invention, in the axial direction of the rotor shaft, the distance between the damping pulley and the housing is 25-45 mm.

According to an embodiment of the present invention, the damping pulley includes: a bearing, the bearing is sleeved on the rotor shaft; an annular bracket, the annular bracket is sleeved outside the bearing; a damping ring, the The shock absorbing ring is sleeved on the outer peripheral surface of the annular support.

According to an embodiment of the present invention, the annular bracket and the bearing are integrally injection molded.

According to an embodiment of the present invention, a positioning groove is provided on the inner peripheral surface of the annular support, and the bearing fits in the positioning groove.

According to an embodiment of the present invention, the inner peripheral surface of the annular support is provided with two positioning ring platforms arranged at intervals along its axial direction, the positioning groove is formed between the two positioning ring platforms, and the positioning The inner diameter of the ring platform is equal to the inner diameter of the outer ring of the bearing, and the diameter of the bottom wall of the positioning groove is equal to the outer diameter of the bearing.

According to an embodiment of the present invention, the annular bracket is a nylon piece or a glass fiber reinforced nylon piece.

According to an embodiment of the present invention, the outer peripheral surface of the annular support is provided with a stop ring platform and a plurality of buckles, and the stop ring platform and the buckles are respectively arranged adjacent to the two ends of the annular support, so that The stop ring platform and the buckle are respectively stopped at the two ends of the shock absorbing ring.

According to an embodiment of the present invention, each buckle includes: a connecting portion extending along the axial direction of the annular bracket, the connecting portion is connected with the annular bracket; a clip protruding from the outer peripheral surface of the annular bracket The hook part, the hook part is connected with the connecting part, and the minimum included angle between the side surface of the hook part facing the stop ring platform and the outer surface of the connecting part is 85-90 degrees .

According to an embodiment of the present invention, there are 3-5 buckles.

According to an embodiment of the present invention, the outer peripheral surface of the annular bracket is provided with a plurality of elastic grooves, and the free end of the buckle is spaced apart from the outer peripheral surface of the annular bracket by the elastic grooves.

According to an embodiment of the present invention, the bearing is lubricated by high temperature resistant grease, and the clearance of the bearing is 0.012mm-0.017mm.

According to an embodiment of the present invention, the rotor shaft is provided with a snap spring for fixing the position of the bearing in the axial direction of the rotor shaft.

According to an embodiment of the present invention, in the axial direction of the housing, the housing has a first end face and a second end face, and the damping pulley is arranged on the rotor shaft protruding from the first end face part, the second end face is provided with a damping ring.

The embodiment according to the second aspect of the present invention provides a clothes dryer, which includes the motor of the clothes dryer according to the embodiment of the first aspect of the present invention.

The clothes dryer according to the embodiment of the present invention has the advantages of convenient use and high reliability by using the motor of the clothes dryer according to the embodiment of the first aspect of the present invention.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural diagram of a motor of a clothes dryer according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a motor of a clothes dryer according to an embodiment of the present invention.

FIG. 3 is a partially exploded view of a motor of a clothes dryer according to an embodiment of the present invention.

Fig. 4 is a structural schematic diagram of a vibration-absorbing pulley of a motor of a clothes dryer according to an embodiment of the present invention.

Fig. 5 is a structural schematic diagram of a vibration-absorbing pulley of a motor of a clothes dryer according to an embodiment of the present invention.

FIG. 6 is an exploded view of a damping pulley of a motor of a clothes dryer according to an embodiment of the present invention.

FIG. 7 is a partially exploded view of a damping pulley of a motor of a clothes dryer according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a ring bracket of a motor of a clothes dryer according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of a ring bracket of a motor of a clothes dryer according to an embodiment of the present invention.

Fig. 10 is a schematic structural diagram of a ring support of a motor of a clothes dryer according to an embodiment of the present invention.

Fig. 11 is a schematic structural view of a ring support of a motor of a clothes dryer according to an embodiment of the present invention.

FIG. 12 is a cross-sectional view of an annular bracket of a motor of a clothes dryer according to an embodiment of the present invention.

FIG. 13 is an enlarged view at D in FIG. 12 .

Fig. 14 is a schematic structural diagram of a bearing of a motor of a clothes dryer according to an embodiment of the present invention.

Fig. 15 is a structural schematic diagram of a bearing of a motor of a clothes dryer according to an embodiment of the present invention.

Fig. 16 is a structural schematic diagram of a bearing of a motor of a clothes dryer according to an embodiment of the present invention.

Reference signs: motor 1, housing 100, first end face 110, second end face 120, stator 200, rotor 300, rotor shaft 310, snap spring 311, damping pulley 400, bearing 410, ring bracket 420, positioning groove 421, positioning ring platform 422, stop ring platform 423, buckle 424, connection part 425, hook part 426, elastic groove 427, shock absorbing ring 430, shock absorbing ring 500, front end cover 610, rear end cover 620, shock absorber The distance S between the vibration pulley and the housing, the inner diameter d1 of the positioning ring platform, the inner diameter d2 of the outer ring of the bearing, and the minimum angle between the side surface of the hook part facing the stop ring platform and the outer surface of the connecting part theta.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

A motor 1 of a clothes dryer according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1-16 , a motor 1 of a clothes dryer according to an embodiment of the present invention includes a housing 100 , a stator 200 , a rotor 300 and a damping pulley 400 .

The stator 200 is provided inside the housing 100 . The rotor 300 is rotatably provided in the housing 100 , and the rotor 300 has a rotor shaft 310 partially protruding from the housing 100 . The damping pulley 400 is installed on the rotor shaft 310 and spaced apart from the housing 100 in the axial direction of the rotor shaft 310 .

It should be understood here that the clothes dryer has a support frame for installing the motor 1 , and the shock-absorbing pulley 400 is installed on the support frame.

According to the motor 1 of the clothes dryer in the embodiment of the present invention, by setting the damping pulley 400, the damping pulley 400 and the casing 100 are spaced apart in the axial direction of the rotor shaft 310. Compared with the motor in the related art, The force bearing mode of the motor 1 can be changed, so as to reduce the force on the pulley of the rotor shaft 310, so that the force on the motor 1 is more balanced, and avoid local deformation of the rotor shaft 310 due to a large force on the pulley of the rotor shaft 310. The belt can be prevented from breaking, and the structural stability and working reliability of the motor 1 can be improved, thereby improving the working reliability of the clothes dryer.

Moreover, by setting the damping pulley 400 and the casing 100 at intervals in the axial direction of the rotor shaft 310, compared with the motors in the related art, the frequency of damage to the motor 1 can be reduced, which facilitates improving the service life of the motor 1, thereby reducing The frequency of maintenance and replacement of the motor 1 facilitates the normal use of the motor 1, improves the working efficiency of the motor 1, saves the time and cost of motor maintenance, reduces the cost of using the motor 1, and improves user comfort.

That is to say, by arranging the damping pulley 400 and the casing 100 at intervals in the axial direction of the rotor shaft 310, not only the damping effect of the motor 1 can be ensured, but also the noise generated when the motor 1 is running can be reduced, and the user experience can be improved. , and can make the force of the motor 1 more balanced, avoid the local deformation of the pulley of the rotor shaft 310 due to the large force, prevent the belt from breaking, and improve the structural stability and working reliability of the motor 1.

In addition, since the damping ring in the related art includes a metal expansion washer, the metal expansion washer is wrapped around the outer ring of the bearing, and then pressed into the inner ring of the plastic sleeve together with the bearing, and the outer ring of the bearing is connected with the plastic sleeve through the metal expansion washer. There are many requirements for the size and type selection of metal expansion gaskets, resulting in more expensive metal expansion gaskets. The damping pulley 400 of the motor 1 in this application can not only save the setting of the metal expansion washer, which is convenient to reduce the cost of the damping pulley 400, but also because the connection mode on the shaft is more general and mature than that on the end cover, such as on the shaft Structures such as snap springs and shaft shoulders can be used for positioning, thereby simplifying the assembly process of the shock absorbing pulley 400 , improving the assembly efficiency of the shock absorbing pulley 400 , and reducing the assembly cost of the shock absorbing pulley 400 . At the same time, since the rotor shaft has higher precision relative to the end cover, compared with the motor in the related art, the damping pulley 400 is installed on the rotor shaft 310, which can improve the installation accuracy of the damping pulley 400 and improve the performance of the damping pulley 400. Structural accuracy and stability, thereby improving the working reliability of the shock-absorbing pulley 400 .

Therefore, the motor 1 of the clothes dryer according to the embodiment of the present invention has the advantages of convenient use and high reliability.

A motor 1 of a clothes dryer according to a specific embodiment of the present invention will be described below with reference to the accompanying drawings.

In some specific embodiments of the present invention, as shown in FIGS. 1-16 , a motor 1 of a clothes dryer according to an embodiment of the present invention includes a housing 100 , a stator 200 , a rotor 300 and a damping pulley 400 .

Specifically, in the axial direction of the rotor shaft 310 , the distance S between the damping pulley 400 and the housing 100 is 25-45 mm. In this way, it is convenient to improve the position accuracy of the damping pulley 400 , to further facilitate to make the force of the motor 1 more balanced, and to further facilitate to improve the working reliability of the motor 1 .

Optionally, as shown in FIG. 6 , the damping pulley 400 includes a bearing 410 , an annular bracket 420 and a damping ring 430 , and the bearing 410 is sleeved on the rotor shaft 310 . The ring bracket 420 is sleeved on the outside of the bearing 410 . The shock absorbing ring 430 is sleeved on the outer peripheral surface of the ring bracket 420 . This facilitates the installation and setting of the shock-absorbing pulley 400 , and improves the shock-absorbing effect of the shock-absorbing pulley 400 . Because the shock-absorbing pulley in the related art wraps the metal expansion washer on the outer ring of the bearing, and then presses it into the inner ring of the plastic sleeve together with the bearing, the outer ring of the bearing is connected with the plastic sleeve through the metal expansion washer, so that the shock-absorbing pulley 400 can not only save the setting of the metal expansion washer, which is convenient to reduce the production cost of the shock absorbing pulley 400, but also can improve the assembly efficiency of the shock absorbing pulley 400 and reduce the assembly cost of the shock absorbing pulley 400.

Further, the ring bracket 420 and the bearing 410 are integrally injection molded. This not only facilitates the improvement of the connection strength between the ring support 420 and the bearing 410, improves the structural reliability of the shock absorbing pulley 400, but also facilitates the simplification of the assembly process of the shock absorbing pulley 400, and further facilitates the improvement of the production efficiency of the shock absorbing pulley 400. .

Specifically, as shown in FIG. 8 and FIG. 9 , a positioning groove 421 is provided on the inner peripheral surface of the annular support 420 , and the bearing 410 fits in the positioning groove 421 . In this way, the positioning groove 421 can be used to position the bearing 410 , improving the accuracy and reliability of the setting of the bearing 410 , thereby improving the structural accuracy of the damping pulley 400 .

More specifically, as shown in FIGS. 8 and 9 , the inner peripheral surface of the annular support 420 is provided with two positioning ring platforms 422 arranged at intervals along its axial direction, and the positioning groove 421 is formed between the two positioning ring platforms 422 , the inner diameter d1 of the positioning ring platform 422 is equal to the inner diameter d2 of the outer ring of the bearing 410 , and the diameter of the bottom wall of the positioning groove 421 is equal to the outer diameter of the bearing 410 . This not only facilitates the formation of the positioning groove 421, but also facilitates the positioning of the bearing 410 by the positioning groove 421, and the two positioning ring platforms 422 can be used to stop and limit the two ends of the bearing 410 in the axial direction. The shock-absorbing pulley provided with the metal expansion washer can prevent the bearing from moving due to the abnormality of the inner surface of the plastic sleeve or the metal expansion washer, prevent the failure of the bearing 410, and further facilitate the improvement of the working reliability of the bearing 410.

Optionally, the ring bracket 420 is a nylon piece or a glass fiber reinforced nylon piece. This not only facilitates the manufacturing of the ring bracket 420 but also facilitates the improvement of the structural strength of the ring bracket 420 .

Specifically, as shown in FIG. 8 , the outer peripheral surface of the annular bracket 420 is provided with a stop ring platform 423 and a plurality of buckles 424, and the stop ring platform 423 and the buckles 424 are respectively arranged adjacent to the two ends of the annular bracket 420. The ring platform 423 and the buckle 424 respectively stop at the two ends of the shock absorbing ring 430 . In this way, the two ends of the shock absorbing ring 430 can be limited, which further facilitates the positioning of the shock absorbing ring 430. The relative movement between the ring 430 and the ring support 420 further improves the working reliability of the vibration pulley 400 .

In the description of the present invention, "plurality" means two or more.

More specifically, as shown in FIG. 13 , each buckle 424 includes a connection portion 425 and a hook portion 426 , the connection portion 425 extends along the axial direction of the ring bracket 420 , and the connection portion 425 is connected to the ring bracket 420 . The hook part 426 protrudes from the outer peripheral surface of the ring bracket 420, the hook part 426 is connected to the connecting part 425, and the minimum angle θ between the side surface of the hook part 426 facing the stop ring platform 423 and the outer surface of the connecting part 425 85-90 degrees. This can not only ensure that the buckle 424 has a certain elastic force, facilitate the smooth installation of the shock absorbing ring 430, improve the installation efficiency of the shock absorbing ring 430, but also facilitate the positioning of the buckle 424 to the shock absorbing ring 430, and further improve the stability of the buckle 424. positioning effect.

Optionally, there are 3-5 buckles 424 . In this way, the stress of the buckle 424 can be more uniform, and the positioning reliability of the buckle 424 can be further improved, thereby further improving the structural stability of the damping pulley 400 .

Specifically, as shown in FIG. 9 , a plurality of elastic grooves 427 are formed on the outer peripheral surface of the annular bracket 420 , and the free end of the buckle 424 is spaced apart from the outer peripheral surface of the annular bracket 420 by the elastic grooves 427 . In this way, the buckle 424 is easy to be elastically deformed, the elastic force of the buckle 424 is increased, and the installation of the shock-absorbing ring 430 is further facilitated.

Optionally, the bearing 410 is lubricated by high temperature resistant grease, and the clearance of the bearing 410 is 0.012mm-0.017mm. In this way, it is convenient to improve the lubrication effect of the bearing 410 , thereby improving the working performance of the bearing 410 .

Specifically, as shown in FIG. 3 , a circlip 311 is provided on the rotor shaft 310 , and the circlip 311 is used to fix the position of the bearing 410 in the axial direction of the rotor shaft 310 . This facilitates the installation of the bearing 410 , facilitates the improvement of the positional accuracy of the bearing 410 , and facilitates the improvement of the installation reliability of the bearing 410 .

Optionally, as shown in FIG. 2 , in the axial direction of the housing 100 , the housing 100 has a first end face 110 and a second end face 120 . In part, the second end surface 120 is provided with a shock absorbing ring 500 . In this way, it is convenient to use the damping pulley 400 and the damping ring 500 to damp the motor 1 , and further facilitate the improvement of the damping performance of the motor 1 .

Specifically, as shown in FIG. 2 , the housing 100 includes a front end cover 610 and a rear end cover 620 . Set at intervals, the shock absorbing ring 500 is arranged on the rear end cover 620, the shock absorbing ring 500 and the shock absorbing ring 430 can be the same part, and the support frame is supported on the shock absorbing ring 500 and the shock absorbing pulley 400 respectively. This facilitates the arrangement of the shock absorbing ring 500 and the shock absorbing pulley 400 , and improves the assembly efficiency of the motor 1 .

Of course, the shock absorbing ring 500 and the shock absorbing ring 430 can also be different parts.

A clothes dryer according to an embodiment of the present invention will be described below. A clothes dryer according to an embodiment of the present invention includes the motor 1 of the clothes dryer according to the above-described embodiments of the present invention.

The clothes dryer according to the embodiment of the present invention has the advantages of convenient use and high reliability by using the motor 1 of the clothes dryer according to the above-mentioned embodiments of the present invention.

Other configurations and operations of the motor of the clothes dryer according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or Elements must have certain orientations, be constructed and operate in certain orientations, and therefore should not be construed as limitations on the invention.

In the description of the present invention, "first feature" and "second feature" may include one or more of these features.

In the description of the present invention, a first feature being "on" or "under" a second feature may include that the first and second features are in direct contact, and may also include that the first and second features are not in direct contact but pass through them. Additional feature contacts between.

In the description of the present invention, "above", "above" and "above" a first feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher than Second feature.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation A specific feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (15)

1. a kind of motor of dryer, which is characterized in that including：

Shell；

Stator, the stator are located in the shell；

Rotor, the rotor are rotatably arranged in the shell, and the rotor has the rotor that a part stretches out the shell Axis；

Damper pulley, the damper pulley be mounted on the armature spindle on and with the shell in the axial direction of the armature spindle between Every setting.

2. the motor of dryer according to claim 1, which is characterized in that described to subtract in the axial direction of the armature spindle It is 25-45 millimeters to shake the distance between belt wheel and the shell.

3. the motor of dryer according to claim 1, which is characterized in that the damper pulley includes：

Bearing, the bearing are set on the armature spindle；

Ring support, the ring support are set in outside the bearing；

Shock absorbing ring, the shock absorbing ring are set on the peripheral surface of the ring support.

4. the motor of dryer according to claim 3, which is characterized in that the ring support is noted with the bearing integrated It is moulded into type.

5. the motor of dryer according to claim 3, which is characterized in that the inner peripheral surface of the ring support is equipped with positioning Slot, the bearing fit is in the locating slot.

6. the motor of dryer according to claim 5, which is characterized in that the inner peripheral surface of the ring support is equipped with along it Two positioning land of axially spaced-apart setting, the locating slot are formed between two positioning land, the positioning land Internal diameter it is equal with the outer ring internal diameter of the bearing, the bottom wall diameter of the locating slot is equal with the outer diameter of the bearing.

7. the motor of dryer according to claim 3, which is characterized in that the ring support is that nylon part or glass increase Strong nylon part.

8. the motor of dryer according to claim 3, which is characterized in that the peripheral surface of the ring support is equipped with backstop Land and multiple buckles, the backstop land and the buckle are respectively adjacent to the both ends of the surface setting of the ring support, described to stop Baffle ring platform and buckle difference backstop are at the both ends of the shock absorbing ring.

9. the motor of dryer according to claim 8, which is characterized in that each the buckle includes：

Along the axially extending interconnecting piece of the ring support, the interconnecting piece is connected with the ring support；

The pothook of the ring support peripheral surface is protruded, the pothook is connected with the interconnecting piece, the pothook direction Minimum angle between the side surface and the outer surface of the interconnecting piece of the backstop land is 85-90 degree.

10. the motor of dryer according to claim 8, which is characterized in that the buckle is 3-5.

11. the motor of dryer according to claim 8, which is characterized in that the peripheral surface of the ring support is equipped with more The free end of a elastic groove, the buckle is spaced apart by the elastic groove with the peripheral surface of the ring support.

12. the motor of dryer according to claim 3, which is characterized in that the bearing by oil resistant grease lubrication, The clearance of the bearing is 0.012mm-0.017mm.

13. the motor of dryer according to claim 3, which is characterized in that the armature spindle is equipped with for described The clamp spring that position of the bearing in the axial direction of the armature spindle is fixed.

14. the motor of dryer according to claim 1, which is characterized in that in the axial direction of the shell, the shell With first end face and second end face, the damper pulley is located at the part that the armature spindle stretches out the first end face, described Second end face is equipped with shock ring.

15. a kind of dryer, which is characterized in that include the motor of the dryer according to any one of claim 1-14.