阅读说明：本技术 电机、泵及洗涤装置 (Motor, pump and washing device ) 是由 厉国杰 施余珍 王军洋 于 2020-06-17 设计创作，主要内容包括：一种电机(10),包括：定子(12)；机壳(14),收容所述定子(12),所述机壳(14)包括支撑件(16)；轴承(18),配合在所述支撑件(16)中；转子轴(20),由所述轴承(18)支撑；以及转子(22),适于绕所述转子轴(20)相对于所述定子(12)旋转。本发明也涉及包括所述电机(10)的泵(60)和洗涤装置(100),以及包括所述泵(60)的洗涤装置(100)。(An electric machine (10) comprising: a stator (12); a casing (14) housing the stator (12), the casing (14) including a support (16); a bearing (18) fitted in the support (16); a rotor shaft (20) supported by the bearing (18); and a rotor (22) adapted to rotate about the rotor shaft (20) relative to the stator (12). The invention also relates to a pump (60) and a washing device (100) comprising said motor (10), and a washing device (100) comprising said pump (60).)

1. An electric machine (10), comprising:

a stator (12);

a casing (14) housing the stator (12), the casing (14) including a support (16);

a bearing (18) fitted in the support (16);

a rotor shaft (20) supported by the bearing (18); and

a rotor (22) adapted to rotate about the rotor shaft (20) relative to the stator (12).

2. The electric machine (10) of claim 1, characterized in that the support (16) comprises a base (24) and a locating wall (26) extending from the base (24) towards the rotor (22) cooperating with the bearing (18).

3. The electric machine (10) of claim 2 wherein the locating wall (26) includes radially outwardly extending ribs (28).

4. The electric machine (10) of claim 2, characterized in that the locating wall (26) includes barbs (30) that mate with the bearing (18).

5. The electric machine (10) of claim 4, characterized in that the bearing (18) includes a flange (32) abutting the barb (30).

6. The electric machine (10) of claim 2 including a damping ring (34) fitted over said bearing (18), said positioning wall (26) including an arcuate slot (36) receiving said damping ring (34).

7. The electric machine (10) of claim 6, characterized in that the bearing (18) comprises a socket (38) that mates with the bradyseism ring (34).

8. The electric machine (10) of claim 6, wherein the dampening ring (34) is a rubber ring.

9. The electric machine (10) of claim 2, characterized in that the support (16) comprises a gap (40) between the positioning walls (26) and each other.

10. The electric machine (10) of claim 2, characterized in that the number of the positioning walls (26) is two or more.

11. The electric machine (10) of claim 10 wherein adjacent ones of the locating walls (26) are configured differently from one another.

12. The electric machine (10) of claim 1, characterized in that the bearing (18) is made of a wear resistant material.

13. The electric machine (10) of claim 12, characterized in that the wear resistant material is plastic.

14. A pump (60) characterized by comprising an electric motor (10) according to any one of claims 1-13.

15. A washing apparatus (100) comprising a pump (60) according to claim 14.

16. A washing apparatus (100) characterized in that it comprises a motor (10) according to any one of claims 1-13.

17. A washing device (100) according to claim 15 or 16, characterized by being a dishwasher or a washing machine.

Technical Field

The invention relates to a motor, a pump and a washing device.

Background

The existing motor often realizes the positioning of the bearing by adding an additional positioning part, has a complex structure and high component cost and production cost, and can cause that a pump comprising the motor or a washing device such as a washing machine, a dish washing machine and the like is not ideal.

Disclosure of Invention

It is an object of the present invention to provide an improved motor, pump, and washing apparatus.

In view of the above objects, an aspect of an embodiment of the present invention relates to a motor including: a stator; a case housing the stator, the case including a support; a bearing fitted in the support; a rotor shaft supported by the bearing; and a rotor adapted to rotate relative to the stator about the rotor axis.

Therefore, the motor can be used for facilitating the positioning and supporting of the bearing by the supporting piece of the machine shell, the positioning of the bearing is realized without additional positioning parts, the structure of the motor is simpler, and the component cost and the production cost are lower.

Optionally, the support comprises a base and a locating wall extending from the base towards the rotor cooperating with the bearing.

Therefore, the positioning wall of the supporting part of the machine shell can be used for positioning and supporting the bearing, no additional positioning part is needed for positioning the bearing, the motor structure is simple, and the component cost and the production cost are low.

Optionally, the locating wall comprises a radially outwardly extending rib.

Therefore, the positioning wall can be large in radial rigidity and can bear strong radial force.

Optionally, the locating wall includes a barb that mates with the bearing.

In this way, axial positioning of the bearing may be facilitated.

Optionally, the bearing comprises a flange abutting the barb.

In this way, reliable axial positioning of the bearing may be facilitated.

Optionally, the motor includes a damping ring sleeved on the bearing, and the positioning wall includes an arc-shaped groove for accommodating the damping ring.

As such, it may be advantageous to cushion vibrations between the rotor and the casing, and to position the bearing, the damping ring, and the positioning wall.

Optionally, the bearing comprises a socket portion cooperating with the bradyseism ring.

In this way, a secure fit of the bearing and the bradyseism ring can be facilitated.

Optionally, the cushioning ring is a rubber ring.

Thus, it is possible to facilitate buffering of vibration between the rotor and the casing.

Optionally, the support comprises a gap between the locating walls.

In this way, it is possible to facilitate at least a partial elastic deformation of the positioning wall.

Optionally, the number of the positioning walls is two or more.

In this way, flexibility in the design of the positioning wall structure may be facilitated.

Optionally, adjacent ones of the positioning walls are structurally different from each other.

In this way, the adjacent positioning walls can be facilitated to realize the positioning of the bearing in different directions.

Optionally, the bearing is made of a wear resistant material.

Thus, the bearing has a long service life.

Optionally, the wear resistant material is a plastic.

In this way, the cost of the bearing can be facilitated to be low.

Another aspect of embodiments of the present invention relates to a pump comprising a motor as described above.

Therefore, the motor shell can be beneficial to positioning and supporting the bearing by the supporting piece of the motor shell, the positioning of the bearing is realized without additional positioning parts, the structure of the motor and the pump is simpler, and the component cost and the production cost are lower.

Yet another aspect of an embodiment of the present invention relates to a washing apparatus comprising a pump as described above.

Therefore, the supporting piece of the machine shell can be used for positioning and supporting the bearing, no additional positioning part is needed for realizing the positioning of the bearing, the structure of the motor, the pump and the washing device is simpler, and the component cost and the production cost are lower.

Yet another aspect of an embodiment of the present invention relates to a washing apparatus including the motor as described above.

Therefore, the motor shell can be beneficial to positioning and supporting the bearing by the supporting piece of the machine shell, the positioning of the bearing is realized without additional positioning parts, the structure of the motor and the washing device is simpler, and the component cost and the production cost are lower.

Optionally, the washing device is a dishwasher or a washing machine.

Therefore, the supporting part of the machine shell can be used for positioning and supporting the bearing, no additional positioning part is needed for realizing the positioning of the bearing, the structure of the motor, the pump, the dishwasher or the washing machine is simple, and the component cost and the production cost are low.

Where the technical conditions warrant, the subject matter of any independent claim herein may be combined with any single subject matter or combination of subject matter recited in any dependent claim to form new claimed subject matter.

The invention will be further described with reference to the accompanying drawings. The same or similar reference numerals may be used to refer to the same or similar elements in different embodiments, and the description of the same or similar elements in different embodiments and the description of prior art elements, features, effects, etc. may be omitted.

Drawings

FIG. 1 is a schematic illustration in partial cross-section of an electric machine according to an embodiment of the invention;

FIG. 2 is a partial cross-sectional schematic view of another angle of the motor of FIG. 1 with a partial enlargement of the support;

FIG. 3 is a perspective schematic view of a bearing of the motor of FIG. 1;

FIG. 4 is a schematic front view of a damping ring of the motor of FIG. 1;

FIG. 5 is an enlarged, fragmentary, cross-sectional schematic view of the motor of FIG. 2;

FIG. 6 is a view similar to FIG. 2 but with a partial enlargement of the support member engaged with the bearing; and

fig. 7 is a schematic perspective view of a portion of a pump and washing apparatus including the motor shown in fig. 1.

Detailed Description

Fig. 1 is a schematic partial cross-sectional view of an electric machine according to an embodiment of the invention. As shown in fig. 1, one aspect of an embodiment of the present invention relates to an electric machine 10 including: a stator 12; a casing 14 housing the stator 12, the casing 14 including a support 16; a bearing 18 fitted in the support 16; a rotor shaft 20 supported by the bearing 18; and a rotor 22 adapted to rotate about the rotor shaft 20 relative to the stator 12.

In this way, the support member 16 of the housing 14 can be used to position and support the bearing 18, no additional positioning parts are needed to position the bearing, and the motor 10 has a simpler structure and lower component cost and production cost.

When the motor 10 is energized, the rotor 22 rotates relative to the stator 12, converting electrical energy input to kinetic energy output. The housing 14 may directly or indirectly support and protect the stator 12, the bearing 18, the rotor shaft 20, and the rotor 22.

Optionally, the support 16 includes a base 24 and a locating wall 26 extending from the base 24 toward the rotor 22 that cooperates with the bearing 18.

In this way, the positioning wall 26 of the support 16 of the housing 14 can position and support the bearing 18, no additional positioning parts are needed to realize the positioning of the bearing, and the motor 10 has a simple structure and low component cost and production cost.

The base 24 may be located at a central portion of the bottom of the housing 14, and the positioning wall 26 may be spaced apart from the rotor 22. The bearing 18 may be spaced from the rotor 22 and the base 24, respectively, and may be axially positioned between the rotor 22 and the base 24.

Optionally, the positioning wall 26 includes radially outwardly extending ribs 28.

In this way, the positioning wall 26 can be made radially rigid and can withstand strong radial forces.

The ribs 28 may be connected radially outwardly to the radially inner wall 15 of the housing 14. During the axial demoulding process of injection molding, the reinforcing ribs 28 do not need to be radially deformed, and the manufacturability of the motor 10 is better.

Fig. 2 is a partial cross-sectional view of another angle of the motor of fig. 1, wherein the support is shown partially enlarged without the bearing engaged. Referring to fig. 2, optionally, the locating wall 26 includes barbs 30 that mate with the bearing 18.

In this manner, axial positioning of the bearing 18 may be facilitated.

The barbs 30 may be spaced from the radially inner wall 15. The barbs 30 may project radially inward. During the axial demoulding process of injection molding, the barb 30 can be elastically deformed in the radial direction towards the radial inner wall 15, so that demoulding is facilitated, and manufacturability is better.

Fig. 3 is a perspective schematic view of a bearing of the motor of fig. 1. As shown in fig. 3, optionally, the bearing 18 includes a flange 32 that abuts the barb 30.

In this way, reliable axial positioning of the bearing 18 can be facilitated.

The bearing 18 may be generally cylindrical in shape. The flange 32 may project radially outward from proximate one end 33 of the bearing 18.

FIG. 4 is a front view of the bradyseism ring of the motor of FIG. 1. Fig. 5 is a partially enlarged cross-sectional view of the motor of fig. 2. Referring to fig. 4 and 5, optionally, the motor 10 includes a damping ring 34 sleeved on the bearing 18, and the positioning wall 26 includes an arc-shaped groove 36 for accommodating the damping ring 34.

In this manner, it may be advantageous to dampen vibrations between the rotor 22 and the housing 14, as well as to position the bearing 18, the dampening ring 34, and the positioning wall 26.

The arcuate slot 36 may be adjacent the barb 30. The arcuate slot 36 may be closer to the base 24 than the barb 30. The barb 30 may be the end of the positioning wall 26 distal from the base 24.

Referring also to FIG. 3, optionally, the bearing 18 includes a socket 38 that mates with the bradyseism ring 34.

In this manner, a secure fit of the bearing 18 and the bradyseism ring 34 can be facilitated.

The socket 38 may be a recessed portion between the flange 32 and the other end 35 of the bearing 18, which may facilitate positioning of the bradyseis ring 34 between the flange 32 and the other end 35. The damping ring 34 may be placed in the support member 16 after being sleeved with the bearing 18 and engaged with the positioning wall 26.

Optionally, the cushioning ring 34 is a rubber ring.

In this manner, vibration between the rotor 22 and the casing 14 may be advantageously damped.

Fig. 6 is similar to fig. 2, but with a partial enlargement showing the support in engagement with the bearing. As shown in fig. 6, the support 16 optionally includes a gap 40 between the positioning walls 26.

In this manner, at least partial elastic deformation of the positioning wall 26 can be facilitated.

Optionally, the number of the positioning walls 26 is two or more.

In this manner, flexibility in the structural design of the positioning wall 26 may be facilitated.

The gap 40 may separate adjacent ones of the positioning walls 26. When one of the two or more positioning walls 26 is deformed, the other part is not deformed.

Alternatively, adjacent ones of the positioning walls 26 are different in structure from each other.

In this way, the positioning of the bearings 18 in different directions can be facilitated by the adjacent positioning walls 26.

For example, one of the two adjacent positioning walls 26 may include the rib 28 to provide a primarily radial positioning function, and the other of the two adjacent positioning walls 26 may include the arc-shaped groove 36 and the barb 30 to provide a primarily axial positioning function. The positioning walls 26 which mainly play a role in radial positioning are staggered with the positioning walls 26 which mainly play a role in axial positioning, so that sufficient positioning and supporting functions can be provided for the bearing 18 in the axial direction and the radial direction.

Optionally, the bearing 18 is made of a wear resistant material.

In this manner, a longer service life of the bearing 18 may be facilitated.

Optionally, the wear resistant material is a plastic.

In this manner, the cost of the bearing 18 may be facilitated to be low.

Fig. 7 is a schematic perspective view of a portion of a pump and washing apparatus including the motor shown in fig. 1. Another aspect of an embodiment of the present invention, as shown in fig. 7, relates to a pump 60 including the motor 10 as described above.

In this way, the support 16 of the housing 14 can be used to position and support the bearing 18, no additional positioning parts are needed to position the bearing, the structure of the motor 10 and the pump 60 is simple, and the component cost and the production cost are low.

The motor 10 may be a power component of the pump 60. The pump 60 may assist in the transfer of fluids such as water.

Yet another aspect of an embodiment of the present invention relates to a washing device 100 comprising a pump 60 as described above.

In this way, the support 16 of the housing 14 can be used for positioning and supporting the bearing 18, no additional positioning parts are needed for positioning the bearing, the structure of the motor 10, the pump 60 and the washing device 100 is simple, and the component cost and the production cost are low.

The washing device 100 may transfer fluid by means of the pump 60.

Yet another aspect of an embodiment of the present invention relates to a washing device 100 including the motor 10 as described above.

In this way, the support 16 of the housing 14 can be used to position and support the bearing 18, no additional positioning parts are needed to position the bearing, the structure of the motor 10 and the washing device 100 is simple, and the component cost and the production cost are low.

The motor 10 may be a power component of the washing apparatus 100, and converts an electric energy input into a kinetic energy output.

Optionally, the washing device 100 is a dishwasher or a washing machine.

In this way, the support 16 of the housing 14 can be facilitated to position and support the bearing 18, no additional positioning parts are required to position the bearing, the motor 10, the pump 60, the dishwasher or washing machine are simple in structure, and the component cost and the production cost are low.

Referring to fig. 7, the washing apparatus 100 may include a chamber 102, a base 104 supporting the chamber 102, and a tank 106 installed in the chamber 102. The chamber 102 may receive items (not shown) to be washed.

The pump 60 may be a drain pump of the washing apparatus 100, and is installed in the tank 106, and discharges the fluid (not shown) washed in the cavity 102 to an outlet 110 of the tank 106 through an inlet 108 of the tank 106, and then to the washing apparatus 100.

The various embodiments described above and shown in the drawings are illustrative of the invention and are not exhaustive of the invention. Any modification of the present invention by a person of ordinary skill in the related art within the scope of the basic technical idea of the present invention is within the scope of the present invention.