CN115378182B

CN115378182B - Motor for dish washer

Info

Publication number: CN115378182B
Application number: CN202211290305.1A
Authority: CN
Inventors: 环剑斌; 苏申科; 缪亚娟; 陆建松; 李祥志; 苏佳; 蒋兴龙
Original assignee: Jiangsu Huansheng Motor Co ltd; Jiangsu Sanjiang Electric Group Co ltd
Current assignee: Jiangsu Huansheng Motor Co ltd; Jiangsu Sanjiang Electric Group Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-03-24
Anticipated expiration: 2042-10-21
Also published as: CN115378182A

Abstract

The invention discloses a motor for a dish-washing machine, which relates to the field of motors and comprises a bottom plate, a stator winding, a rotor and a permanent magnet, wherein the stator winding is arranged on the surface of the bottom plate, the permanent magnet is fixedly arranged on the surface of the rotor, the rotor is arranged at the position of an inner ring of the stator winding, and a sealing sleeve is arranged outside the stator winding in a surrounding mode. According to the invention, the sealing sleeve, the protecting sleeve, the rotating shaft and the rotor are arranged, the bottom plate and the sealing sleeve are of an integrated structure, a semi-sealing structure with an upper opening is formed at the moment, the protecting sleeve and the rotating shaft are of an integrated structure, and a semi-sealing structure with a lower opening is formed, so that water for washing bowls and chopsticks can fall on the surface of the protecting sleeve but can not flow into the motor if the water seeps out of the surface of the rotating shaft, and no matter the water falls from the upper part or the water accumulated below, the water seeps into the motor if the water at the bottom of the shell of the dish-washing machine is not accumulated to the height of the sealing sleeve.

Description

Motor for dish washer

Technical Field

The invention relates to the field of motors, in particular to a motor for a dish washing machine.

Background

The dish washer is the automatic equipment of tableware such as washing dishes, chopsticks, dish, sword, fork, and the function of dish washer includes washing, disinfection and stoving etc. and the limited space of scientific and reasonable's utilization can be more to the upper and lower layer bowl basket of inside setting of dish washer, can practice thrift abluent time simultaneously, and its appearance has changed people's life, and its main structure includes control device, water intaking valve and motor pump etc..

Chinese patent No. CN 201820122924.2 discloses a motor for a dish washer, which is mentioned in the background art, because the dish washer may have a risk of water seepage in the use process, possibly because the installation is problematic, or the water inlet valve is out of order, because the water seepage may cause the motor installed at the bottom of the dish washer to have a risk of water seepage, thereby affecting the performance of the whole dish washer.

The motor of dish washer is usually all installed in the bottom position of shell, and the infiltration divides into two kinds of condition altogether, and one kind is the top down infiltration that begins, and rivers enter into the inside of motor along the slit on the axle next door of motor to influence the normal rotation of motor, the second kind condition is that rivers from the bottom up begin to accumulate, in the inside of motor shell's joint line department infiltration entering motor, thereby also can influence the normal rotation of motor.

Disclosure of Invention

The invention mainly aims to provide a motor for a dish washer, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that:

a motor for a dish washing machine comprises a bottom plate, a stator winding, a rotor and a permanent magnet, wherein the stator winding is arranged on the surface of the bottom plate, the permanent magnet is fixedly arranged on the surface of the rotor, the rotor is arranged at the position of an inner ring of the stator winding, a sealing sleeve is arranged on the outer side of the stator winding in a surrounding mode, and the bottom plate and the sealing sleeve are of an integrated structure;

the utility model discloses a sealing sleeve, including sealed sleeve, rotor, bottom plate, connecting groove, sealed sleeve top, the port inner wall of sealed sleeve top is inlayed and is had waterproof bearing, the rotor is pegged graft at waterproof bearing's inner wall and fixed connection, the surperficial swing joint of its bottom and bottom plate, the spread groove has been seted up to the inside of rotor, the inside relatively fixed mounting pivot of spread groove, the surface of pivot has cup jointed the lag tube, lag tube and pivot structure as an organic whole.

The waterproof bearing comprises a waterproof bearing inner shaft, and is characterized in that a clamping groove is formed in the inner wall of the waterproof bearing inner shaft, a clamping strip is arranged on the surface of a rotor, the clamping strip is clamped in the clamping groove, the waterproof bearing and the rotor are fixedly mounted relatively, the clamping strip is in interference fit with the clamping groove, different mounting modes can be selected when the waterproof bearing is mounted, the clamping strip only needs to be aligned to the position of the clamping groove during mounting, then the rotor is mounted into the waterproof bearing, the rotor can rotate at the moment, the mounting mode is very simple, and the operation is very convenient.

The rotor divide into the circle axle of two upper and lower different diameters, and the diameter of circle axle is less down, and its surface mounting permanent magnet goes up the great direct mount of diameter of circle axle on the inner wall of waterproof bearing, the card strip is installed on the surface of last circle axle, and the diameter of circle axle is less down, and its surface mounting permanent magnet, because seal sleeve itself is a semi-sealed structure, can only install the rotor through a breach of top, and the diameter of circle axle is less down, and the surface mounting permanent magnet just can get into seal sleeve's inside through the waterproof bearing installation with the rotor, goes up the great direct mount of diameter of circle axle on the inner wall of waterproof bearing, and the card strip is installed on the surface of last circle axle, and the material of card strip and rotor is the plastics material, and accessible extrusion molding technology produces.

The utility model discloses a novel joint protection sleeve, including the spread groove, the pivot is provided with the fixed surface of pivot, the inner wall of spread groove is seted up annular array's wedge groove, the fixed surface of pivot installs the wedge, the wedge card is on the inner wall of wedge groove, the wedge is installed and is located the inside position of protective sheath at the pivot, and half of the pivot is located the inside of protective sheath, and half is located the outside, and half of inside is installed through the wedge, in the installation, can beat waterproof glue in the gap position of junction.

The sealing sleeve and the protective sleeve are the same in height, and the end positions of the sealing sleeve and the protective sleeve are all arc-shaped with inclined surfaces.

The surface of the sealing sleeve is provided with an annular groove, the surface of the annular groove is sleeved with a sealing bearing, the sealing bearing is installed through waterproof glue, and the inner wall of the protective sleeve is also installed through the waterproof glue.

The stator winding comprises a framework and an electrifying lead, wherein a placing groove used for placing the framework is formed in the surface of the base plate, the framework is I-shaped, the number of the framework is six, the corresponding placing grooves are also arranged in the same number, an electric conduction groove is formed in the surface of the base plate, an electrifying groove is formed in the bottom of the electric conduction groove, and the electrifying lead is wound and then installed in the electric conduction groove.

The surface mounting of bottom plate changes the ring board, the standing groove is seted up on the surface of change the ring board, the fixed slot is seted up on the surface of change the ring board, the position of fixed slot and conducting groove is close to each other, the top of bottom plate sets up the jam stopper.

The plug comprises a fixed column and a plug block, the shape of the fixed column is matched with that of the inner wall of the fixed groove, the shape of the plug block is matched with that of the inner wall of the conductive groove, and the fixed column and the plug block are fixedly connected through a connecting plate.

The inner wall of the electric connection groove is provided with a sealing groove, sealing rubber is arranged inside the sealing groove, and the sealing rubber is in interference fit with the sealing groove.

The inner wall bottom of standing groove has seted up the locked groove, the bottom installation locking piece of skeleton, the inside in locked groove is blocked to the locking piece.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention discloses a dishwasher, which comprises a base plate, a sealing sleeve, a protective sleeve, a rotating shaft, a rotor, a bottom plate, a rotating shaft, a bearing, a water-proof bearing and a water-proof bearing, wherein the sealing sleeve, the protective sleeve, the rotating shaft and the rotor are arranged, the bottom plate and the sealing sleeve are of an integrated structure, a semi-sealing structure with an opening at the upper part is formed at the moment, water seepage is accumulated at the bottom of a dishwasher shell, the water surface slowly rises until the water surface rises to the top side of the sealing sleeve, the motor can be damaged, the protective sleeve and the rotating shaft are of an integrated structure, the semi-sealing structure with an opening at the lower part is formed, at the moment, if water for washing dishes and chopsticks seeps out from the surface of the rotating shaft, the water can not flow into the interior of the motor, no matter the water falls into the interior of the motor from the upper part or the water accumulated below, as long as the water at the bottom of the dishwasher shell is not accumulated to the height of the sealing sleeve, the motor can not seep into the interior of the motor, although the water seepage risk of the motor is lower compared with the traditional common motor, the risk of seepage is lower, but the risk of seepage is higher than the problem that the water-proof bearing which is not existing in the integral bearing.

2. According to the invention, by arranging the sealing bearings, when the water surface is accumulated to a certain height, water can spread to the inside of the gap, so that the sealing bearings are arranged between the gaps, the original gap space is set to be a relatively sealed environment, the seepage water is blocked outside the gap space, and the motor forms a relatively complete sealing structure, so that the integral waterproof performance can be further improved.

3. According to the invention, the clamping strip and the clamping groove, the wedge-shaped groove and the wedge-shaped block are arranged, the clamping strip is clamped in the clamping groove and used for installing the rotor, the wedge-shaped block is clamped in the wedge-shaped groove and used for installing the rotating shaft, the clamping strip is directly aligned to the inside of the clamping groove during installation, the wedge-shaped block is aligned to the inside of the wedge-shaped groove, the rotor and the rotating shaft can be directly installed, the operation is simple, installation is carried out without other tools, the sealing property can be ensured, and the structure is simple.

4. In the invention, through arranging the rotating ring plate, the conductive groove, the fixed column and the plugging block, the electrified lead is wound on the surface of one framework, the framework is arranged at the position of the placing groove, then the electrified lead is wound on the surface of the other framework and is sequentially placed in the placing groove, and finally the end part of the electrified lead is placed in the conductive groove.

5. According to the invention, the sealing rubber and the electricity connecting groove are arranged, the sealing rubber is sleeved on the surface of the conducting wire, the sealing rubber is tightly attached to the surface of the conducting wire, then the conducting wire is clamped in the electricity connecting groove, and the sealing rubber can be just clamped in the sealing groove and is in interference fit, so that water seepage can be blocked.

Drawings

Fig. 1 is a schematic view of an overall structure of a motor for a dishwasher according to the present invention;

FIG. 2 is a schematic view of a bottom view of a motor for a dishwasher according to the present invention;

FIG. 3 is a schematic view of the internal structure of a motor sealing housing for a dishwasher according to the present invention;

FIG. 4 is a schematic view of a motor frame position mounting structure for a dishwasher according to the present invention;

FIG. 5 is a schematic view of the motor rotor position for a dishwasher in accordance with the present invention;

FIG. 6 is a schematic view of a disassembled structure of a protecting sleeve of a motor for a dish washer according to the present invention;

FIG. 7 is a schematic structural diagram of the position of the permanent magnet of the motor for the dish washing machine according to the present invention;

FIG. 8 is another schematic view of a motor rotor for a dishwasher according to the present invention;

fig. 9 is a schematic structural view of a sealing groove of a motor for a dishwasher according to the present invention.

In the figure: 1. a base plate; 2. a stator winding; 201. a framework; 202. a power-on wire; 203. a placement groove; 3. a rotor; 4. a permanent magnet; 5. sealing the sleeve; 6. a waterproof bearing; 7. connecting grooves; 8. a rotating shaft; 9. a protective sleeve; 10. a card slot; 11. clamping the strip; 12. a wedge-shaped groove; 13. a wedge block; 14. an annular groove; 15. sealing the bearing; 16. a conductive slot; 17. a connecting electric tank; 18. a swivel plate; 19. fixing grooves; 20. a plug is plugged; 2001. fixing a column; 2002. a plugging block; 2003. a connecting plate; 21. a sealing groove; 22. sealing rubber; 23. locking the groove; 24. and (6) locking the block.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-9, including the bottom plate 1, the stator winding 2, the rotor 3 and the permanent magnet 4, the hall sensor and the corresponding circuit board can be embedded in the bottom plate 1, so as to ensure the different conducting conditions of the stator winding 2, the stator winding 2 is installed on the surface of the bottom plate 1, the permanent magnet 4 is fixedly installed on the surface of the rotor 3, the rotor 3 is installed at the inner ring position of the stator winding 2, because the rotor 3 needs to rotate, the installation of the rotor 3 must be movable, the outer side of the stator winding 2 is surrounded and installed with the sealing sleeve 5, the bottom plate 1 and the sealing sleeve 5 are an integrated structure, at this time, an installation structure as shown in fig. 5 is formed, a semi-sealing structure with an opening at the upper part is formed, the water seepage is accumulated at the bottom of the dishwasher shell, and slowly rises until the water surface rises to the top side of the sealing sleeve 5, so as to cause the damage of the motor;

because the normal rotation of rotor 3 needs to be guaranteed, therefore there is the clearance that can move about between rotor 3 and the seal sleeve 5, the inside in this clearance just must have the risk of leaking, will be as shown in fig. 7, the port inner wall at seal sleeve 5 top is inlayed and is had waterproof bearing 6, rotor 3 pegs graft at the inner wall of waterproof bearing 6 and fixed connection, waterproof bearing 6 is installed at foretell clearance position, it is complete to fill up the clearance position, can enough guarantee the rotation of rotor 3 under this condition, also can guarantee holistic leakproofness, its bottom and the surperficial swing joint of bottom plate 1, spread groove 7 has been seted up to the inside of rotor 3, the inside relative fixed mounting pivot 8 of spread groove 7, the surface of pivot 8 has cup jointed protective casing 9, protective casing 9 and pivot 8 are the integrated structure, form a lower part open-ended semi-seal structure, if the water that washes bowls and chopsticks at this moment oozes from the surface of pivot 8, will fall on the surface of protective casing 9, but can not flow into the inside of motor.

As shown in fig. 1, the protecting casing 9 and the sealing casing 5 form a relatively sealed environment, and no matter water falls from above or water accumulates below, as long as water at the bottom of the dishwasher housing does not accumulate to the height of the sealing casing 5, water cannot seep into the interior of the motor, compared with the conventional common motor, although the risk of water seepage from the bottom is relatively low, the risk of water seepage from the interior of the rotating shaft 8 is relatively high, the common waterproof mode basically arranges a labyrinth type sealing structure at the position of the rotating shaft 8, although the risk of water seepage is low, a certain risk still exists in the structure, compared with the present invention, if the structure which is not outside is damaged, the risk of water seepage basically does not exist, and the waterproof bearing 6 is arranged at the gap, so that the overall waterproof performance of the motor can be improved.

As shown in fig. 7, draw-in groove 10 has been seted up on the inner wall of axle in waterproof bearing 6, the surface mounting of rotor 3 has card strip 11, card strip 11 card is in the inside of draw-in groove 10, with waterproof bearing 6 and the relative fixed mounting of rotor 3, card strip 11 and draw-in groove 10 interference fit, when installing waterproof bearing 6, can select different mounting means, only need during the installation with card strip 11 aim at the position of draw-in groove 10, then install the inside that gets into waterproof bearing 6 with rotor 3, rotor 3 can carry out the pivoted this moment, mounting means is very simple, the operation is also very convenient.

As shown in fig. 8, the rotor 3 is divided into two upper and lower circular shafts with different diameters, the diameter of the lower circular shaft is smaller, the surface mounting permanent magnet 4 is arranged, the sealing sleeve 5 is a semi-sealing structure, the rotor 3 can only be arranged through a notch above the sealing sleeve, the diameter of the lower circular shaft is smaller, the surface mounting permanent magnet 4 is arranged just inside the sealing sleeve 5 which can be arranged through the waterproof bearing 6, the diameter of the upper circular shaft can be directly arranged on the inner wall of the waterproof bearing 6, the clamping strip 11 is arranged on the surface of the upper circular shaft, the clamping strip 11 and the rotor 3 are made of plastic, and the sealing sleeve can be produced through an extrusion molding process.

As shown in fig. 7, the inner wall of the connecting groove 7 is provided with a wedge-shaped groove 12 in an annular array, the cross section of the wedge-shaped groove 12 is in a trapezoidal shape, a wedge block 13 is fixedly mounted on the surface of the rotating shaft 8, the rotating shaft 8 is made of a metal material, the wedge block 13 on the surface of the rotating shaft 8 is also made of a metal material, a whole can be formed by welding, the rotating shaft 8 and the outer protective casing 9 are also formed into a whole by welding, the wedge block 13 is clamped on the inner wall of the wedge-shaped groove 12 at the moment, so that the whole sealing performance is ensured to be good, the wedge block 13 is mounted on the inner position, located on the protective casing 9, of the rotating shaft 8 is located in the protective casing 9 in half and located on the outer side, the inner half is mounted through the wedge block 13, and waterproof glue can be applied to the gap position of the connecting part in the mounting process.

As shown in fig. 6, the sealing sleeve 5 and the protection sleeve 9 have the same height, and the end positions thereof are both set to be arc-shaped with inclined surfaces, so that when water starts to seep from the position of the rotating shaft 8, water flow falls on the inclined arc surface, and then falls along the surface without accumulating on the surface of the motor.

As shown in fig. 6, the surface of the sealing sleeve 5 is provided with an annular groove 14, the annular groove 14 is provided at the bottom position, the surface of the annular groove 14 is sleeved with a sealing bearing 15, the sealing bearing 15 is installed through waterproof glue, the inner wall of the protective sleeve 9 is also installed through waterproof glue because a certain gap exists between the sealing sleeve 5 and the protective sleeve 9, when the water surface is accumulated to a certain height, water can spread to the inside of the gap, therefore, the sealing bearing 15 is installed between the gaps, the original gap space is set to be a relatively sealed environment, water seepage is blocked outside the gap space, and the motor forms a relatively complete sealing structure.

As shown in fig. 3, the stator winding 2 includes a bobbin 201 and an energizing wire 202, a placement groove 203 for placing the bobbin 201 is formed on the surface of the base plate 1, the bobbin 201 is h-shaped, and the number of the bobbin 201 is six, when assembling, the bobbin 201 needs to be installed inside the sealing sleeve 5 one by one, the corresponding placement grooves 203 are also provided with the same number, a conductive groove 16 is formed on the surface of the base plate 1, a connecting groove 17 is formed at the bottom of the base plate, the energizing wire 202 is installed inside the conductive groove 16 after being wound, the specific installation operation steps are that the energizing wire 202 is wound on the surface of one of the bobbins 201, the bobbin 201 is installed at the position of the placement groove 203, then the bobbin 201 is wound on the surface of the other bobbin 201 and is sequentially placed inside the placement groove 203, and finally the end of the energizing wire 202 is placed inside the conductive groove 16.

As shown in fig. 3, the surface of the bottom plate 1 is provided with the rotating ring plate 18, the placing groove 203 is arranged on the surface of the rotating ring plate 18, when the framework 201 is installed, the opening of the end position of the sealing sleeve 5 is small, therefore, when the framework 201 is placed, it is quite inconvenient at certain angles, therefore, if one framework 201 is installed, the rotating ring plate 18 can be rotated, the empty placing groove 203 is rotated to a proper position, then the framework 201 is installed, the surface of the rotating ring plate 18 is provided with the fixing groove 19, the positions of the fixing groove 19 and the conducting groove 16 are close to each other, the blocking plug 20 is arranged above the bottom plate 1, after all the frameworks 201 are completely installed, the rotating ring plate 18 can be relatively fixed by the blocking plug 20, and the rotor 3 can normally rotate later.

As shown in fig. 3, the plug 20 includes a fixing column 2001 and a plug 2002, the fixing column 2001 is matched with the inner wall of the fixing groove 19 in shape, the plug 2002 is matched with the inner wall of the conductive groove 16 in shape, the fixing column 2001 and the plug 2002 are fixedly connected through a connecting plate 2003, the plug 2002 is plugged inside the conductive groove 16 while the energizing conductor 202 is conductively connected with the conductive groove 16, so that the energizing conductor 202 is more stably connected inside the conductive groove 16, when the framework 201 is completely mounted on the surface of the rotating ring plate 18, the fixing column 2001 is clamped inside the fixing groove 19, and the rotating ring plate 18 is connected through the connecting plate 2003 to be fixed.

As shown in fig. 3 and 9, a sealing groove 21 is formed in the inner wall of the connecting groove 17, the inner wall of the sealing groove 21 is circular, sealing rubber 22 is installed inside the sealing groove 21, the sealing rubber 22 is in interference fit with the sealing groove 21, when the sealing groove is installed, the sealing rubber 22 needs to be sleeved on the surface of the conductive wire, the sealing rubber 22 is tightly attached to the surface of the conductive wire, the conductive wire is clamped inside the connecting groove 17, the sealing rubber 22 can be just clamped inside the sealing groove 21, and in interference fit, so that water seepage can be blocked.

As shown in fig. 4, the locked groove 23 has been seted up to the inner wall bottom of standing groove 203, and the inner wall setting of locked groove 23 is very coarse, and the bottom installation locking piece 24 of skeleton 201, locking piece 24 card are in the inside of locked groove 23, and the surface of locking piece 24 is also very coarse, because skeleton 201 directly places in the inside of standing groove 203, very unstable when placing, consequently through deepening the height that blocks for skeleton 201 is more stable.

When the motor for the dish washing machine is used, firstly, the whole motor is installed, the electrified lead 202 is wound on the surface of one framework 201, the framework 201 is installed at the position of the placing groove 203, then, the framework is wound on the surface of the other framework 201 and is sequentially placed in the placing groove 203, finally, the end part of the electrified lead 202 is placed in the conducting groove 16, in the process, the rotating ring plate 18 is rotated, the empty placing groove 203 is moved to the position convenient to install, the framework 201 is installed, after all the frameworks 201 are installed, the fixing column 2001 and the blocking block 2002 on the blocking plug 20 are correspondingly clamped in the fixing groove 19 and the connecting groove 16, so that the rotating ring plate 18 is installed and fixed, then, the waterproof bearing 6 is installed on the inner wall of the sealing sleeve 5 by using waterproof glue, then, the clamping strip 11 is aligned with the clamping groove 10, the rotor 3 is installed in the sealing sleeve 5, then, the rotating shaft 8 is directly clamped in the rotor 3, finally, the sealing sleeve 5 and the sealing sleeve 9 are installed in the sealing sleeve 5 and the sealing sleeve 9 by using the sealing glue, and the sealing structure of the whole motor is formed.

The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a motor that dish washer was used, includes bottom plate (1), stator winding (2), rotor (3) and permanent magnet (4), its characterized in that: the stator winding (2) is arranged on the surface of the bottom plate (1), the permanent magnet (4) is fixedly arranged on the surface of the rotor (3), the rotor (3) is arranged at the inner ring position of the stator winding (2), the outer side of the stator winding (2) is surrounded and provided with a sealing sleeve (5), and the bottom plate (1) and the sealing sleeve (5) are of an integrated structure;

the utility model discloses a motor rotor, including sealed sleeve pipe (5), rotor (3), connecting groove (7), the relative fixed mounting pivot (8) in inside of connecting groove (7), protective casing (9) have been cup jointed on the surface of pivot (8), protective casing (9) and pivot (8) structure as an organic whole.

2. A motor for a dishwasher according to claim 1, wherein: the inner wall of the inner shaft of the waterproof bearing (6) is provided with a clamping groove (10), the surface of the rotor (3) is provided with a clamping strip (11), the clamping strip (11) is clamped inside the clamping groove (10), the waterproof bearing (6) and the rotor (3) are fixedly installed relatively, and the clamping strip (11) and the clamping groove (10) are in interference fit.

3. A motor for a dishwasher according to claim 2, wherein: rotor (3) divide into the circle axle of two different diameters about, and the diameter of circle axle is less down, and its surface mounting permanent magnet (4), but the great direct mount of the diameter of going up the circle axle is on the inner wall of waterproof bearing (6), the surface at last circle axle is installed in card strip (11).

4. A motor for a dishwasher according to claim 1, wherein: the inner wall of the connecting groove (7) is provided with a wedge-shaped groove (12) in an annular array, a wedge-shaped block (13) is fixedly mounted on the surface of the rotating shaft (8), the wedge-shaped block (13) is clamped on the inner wall of the wedge-shaped groove (12), and the wedge-shaped block (13) is mounted in the inner position, located on the protecting sleeve (9), of the rotating shaft (8).

5. A motor for a dishwasher according to claim 1, wherein: the sealing sleeve (5) and the protective sleeve (9) are the same in height, and the end positions of the sealing sleeve and the protective sleeve are all arc-shaped with inclined surfaces.

6. A motor for a dishwasher according to claim 5, wherein: the surface of the sealing sleeve (5) is provided with an annular groove (14), the surface of the annular groove (14) is sleeved with a sealing bearing (15), the sealing bearing (15) is installed through waterproof glue, and the inner wall of the protective sleeve (9) is installed through the waterproof glue.

7. A motor for a dishwasher according to claim 1, wherein: stator winding (2) are including skeleton (201) and circular telegram wire (202), standing groove (203) that are used for placing skeleton (201) are seted up on the surface of bottom plate (1), the shape of skeleton (201) is the I shape, and quantity is provided with six, and corresponding standing groove (203) also sets up the same quantity, electrically conductive groove (16) are seted up on the surface of bottom plate (1), and electric connection groove (17) have been seted up to its bottom, install the inside at electrically conductive groove (16) after circular telegram wire (202) twines.

8. A motor for a dishwasher according to claim 7, wherein: a rotating ring plate (18) is arranged on the surface of the bottom plate (1), the placing groove (203) is formed in the surface of the rotating ring plate (18), a fixing groove (19) is formed in the surface of the rotating ring plate (18), the fixing groove (19) and the conducting groove (16) are close to each other, and a blocking plug (20) is arranged above the bottom plate (1);

the plug (20) comprises a fixing column (2001) and a plug block (2002), the shape of the fixing column (2001) is matched with that of the inner wall of the fixing groove (19), the shape of the plug block (2002) is matched with that of the inner wall of the conductive groove (16), and the fixing column (2001) and the plug block (2002) are fixedly connected through a connecting plate (2003).

9. A motor for a dishwasher according to claim 8, wherein: seal groove (21) have been seted up to the inner wall of even electricity groove (17), the internally mounted of seal groove (21) has sealing rubber (22), sealing rubber (22) and seal groove (21) interference fit.

10. A motor for a dishwasher according to claim 7, wherein: the bottom of the inner wall of the placing groove (203) is provided with a locking groove (23), the bottom of the framework (201) is provided with a locking block (24), and the locking block (24) is clamped inside the locking groove (23).