CN111577614B

CN111577614B - Detachable water pump device of dish washing machine

Info

Publication number: CN111577614B
Application number: CN202010375379.XA
Authority: CN
Inventors: 顾浩哲
Original assignee: Zhoushan Juyang Technology Development Co ltd
Current assignee: Zhoushan Juyang Technology Development Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2021-09-14
Anticipated expiration: 2040-05-07
Also published as: CN111577614A

Abstract

The detachable dishwasher water pump device comprises a detachable dishwasher water pump device body, a base, a wiring socket, a stator core, a stator coil winding, a groove, a first guide cylinder, a second guide cylinder, a third guide cylinder, a cover plate, a first guide cylinder opening, a third guide cylinder opening, a sealing ring, a buckle, a pump core, a rotating shaft, a replaceable shaft sleeve, a cooling fan, a cage bar rotor core, a permanent magnet mounting groove, a permanent magnet, a jacket, a sealing bearing, a sealing cover plate, a clamping groove, an impeller, a blade, a rear cover plate, a blade, an end cover, an outer cover, a winding drum, a water outlet, a water inlet, threads and an outer cover buckle; the invention has the advantages that: the pump core is connected with the cavity of the base, the pump core and the cavity of the base can be separated, and are installed by mutual attraction of magnetic force, so that the rotating speed precision is high, and later-stage replacement and maintenance are facilitated; the rotor and the stator core are formed by laminating silicon steel sheets, and compared with the common motor, the motor can prevent scrap iron and cooling liquid; and magnetic conductive plastic is adopted between the pump core and the base, so that the sealing performance is good, and the safety index is high.

Description

Detachable water pump device of dish washing machine

Technical Field

The invention relates to a detachable water pump device of a dish washing machine, belonging to the technical field of water pumps.

Background

In recent years, the popularization rate of domestic dish washing machines is higher and higher, more and more consumers are willing to buy the dish washing machines, and the dish washing machines can relieve people from fussy housework, so that the dish washing machines become another consumption hotspot in the field of household appliances.

In fact, dishwashers have a long history of development in china. In the middle of the 80 s, enterprises begin to produce table dishwashers, and ten imported and domestic brands appear on the market, and the topics about the dishwashers are gradually increased from the end of the 90 s. One item of data provided by the Chinese light industry information center shows that: the dish washing machine becomes one of the products with the fastest energy increase of household electrical appliances in China.

The dish washer is equipment for automatically cleaning tableware such as dishes, chopsticks, dishes, knives and forks, and compared with the traditional manual dish washing, the dish washer has the advantages of time and labor saving, strong dirt-removing capability, simple and convenient operation, electricity and water saving, multiple purposes and the like, and in addition, because the steps of wiping and the like in the manual dish washing are omitted, links such as drying, disinfection and the like are added, the infection chances of germs are reduced; the water-saving effect is obvious because the circulation convection performance of water is utilized; and part of the machine types have the function of softening water, so that the formation of scale in the machine can be reduced, and the tableware is brighter and cleaner.

The dish washer variety and the specification on the market are various, but a good dish washer need be equipped with a good water pump, and the water pump is the machinery that carries liquid or make liquid pressure boost, can guarantee the effective operation of dish washer. The dishwasher water pump is driven by a motor, and in the process of pressing water, the pump pushes water into the spray pipe. During draining, the pump directs water to a drain pipe, and the motor pump fitting is mounted below the tub, in a central location of the dishwasher. The dish washer water pump on the present market is mostly the integral type, can't carry out the split, change, has caused unnecessary extravagant, simultaneously, phenomenons such as the easy appearance is intake, rubbish blocks up, has the potential safety hazard, has influenced the life of dish washer.

Disclosure of Invention

The invention aims to provide a detachable dishwasher water pump device.

The invention aims to solve the problem that the pump core of the water pump of the existing dish-washing machine cannot be detached from the pump body for cleaning and replacement.

In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows:

a detachable dish washing machine water pump device comprises a detachable dish washing machine water pump device body, a base, a wiring socket, a stator iron core, a stator coil winding, a groove, a first guide cylinder, a second guide cylinder, a third guide cylinder, a cover plate, a first guide cylinder opening, a third guide cylinder opening, a sealing ring, a buckle, a pump core, a rotating shaft, a replaceable shaft sleeve, a cooling fan, a cage bar rotor iron core, a permanent magnet mounting groove, a permanent magnet, a jacket, a sealing bearing, a sealing cover plate, a clamping groove, an impeller, a blade, a rear cover plate, a blade, an end cover, an outer cover, a winding drum, a water inlet, a water outlet, a thread and an outer cover buckle, wherein the base is installed on the detachable dish washing machine water pump device body, the base is installed on the base, the wiring socket is installed at the bottom of the base, the stator iron core is installed in the stator iron core, the stator coil winding is installed in the stator iron core, the groove is formed in the upper end of the stator core, a first guide cylinder is arranged in the groove, a second guide cylinder is arranged at the tail end of the first guide cylinder, the upper end of a stator iron core is positioned outside the base, a third guide cylinder is arranged outside the upper end of the stator iron core, the front end of the third guide cylinder is connected with a cover plate, the lower end of the cover plate is connected with the base, a first guide cylinder opening is arranged at the center of the upper end of the cover plate, a third guide cylinder opening is arranged outside the first guide cylinder opening, a sealing ring is arranged outside the third guide cylinder opening, a buckle is arranged outside the sealing ring, a pump core is arranged on the base, a rotating shaft is arranged on the pump core, a replaceable shaft sleeve is arranged on the rotating shaft, a heat radiation fan is arranged on the left side of the replaceable shaft sleeve, a cage bar rotor iron core is arranged on the left side of the heat radiation fan, a permanent magnet mounting groove is arranged in the cage bar rotor iron core, a permanent magnet is embedded in the permanent magnet mounting groove, seal sleeves are arranged at the left end and right end of the cage bar rotor iron core, a seal bearing is arranged at the left end of the rotating shaft, a seal cover plate is arranged outside the seal bearing, the sealing bearing is located the inboard center department of sealed apron, and sealed apron left side edge is equipped with the draw-in groove, and the impeller is installed in sealed apron left side, installs the blade on the impeller, and the back shroud is installed in the blade left side, installs the blade on the back shroud outside, and the end cover is installed on blade center top, installs the dustcoat on the pump core, installs the reel on the dustcoat, installs the water inlet on the reel, and the water inlet side-mounting has the delivery port, installs the screw thread on the delivery port, and the dustcoat buckle is installed at the reel edge.

Cage bar rotor core installs cage type winding for in rotor core, and the permanent magnet mounting means is tangential, in order to prevent that the magnetic flux of permanent magnet from passing through the pivot short circuit, adds between pivot and cage bar rotor core and is equipped with the magnetism material that separates.

The cage bar rotor core needs to be laminated by silicon steel sheets, and because the permanent magnet synchronous motor is basically driven by an inverter power supply, even if the output of a frequency converter generating sine waves contains high-frequency harmonic waves, eddy current loss can be generated if integral steel is used; the permanent magnet material adopts a neodymium iron boron permanent magnet; first guide cylinder, third guide cylinder, apron adopt magnetic conduction plastics, live stator core parcel, can make stator core and cage bar rotor core output magnetic field when isolated liquid.

The pump core and the base form an asynchronous starting permanent magnet synchronous motor, and the working principle is that after the motor is started, a rotor winding in a cage bar rotor core does not generate a magnetic field any more, and the magnetic fields generated by a permanent magnet and a stator core interact.

The top and the bottom of the stator core are positioned outside the base, so that heat dissipation is facilitated, the stator core is formed by stacking silicon steel sheets with the thickness of 0.5mm, and the whole core is tightly pressed at two ends by pressing plates; the stator coil winding is formed by a copper wire winding, electromotive force induced by the winding is generated after the stator coil winding is electrified, and the stator coil winding is positioned in the base to prevent water inflow and electric leakage.

Four same blades are vertically distributed in the blades and used for crushing impurities in water, so that a water pump of the dishwasher is not easy to block.

The outer cover and the base are connected and mounted in a buckling mode, so that the outer cover and the base are convenient to mount and dismount; the pump core and the base are installed by magnetic attraction, can be easily separated, and are convenient to replace and maintain in the later period.

The invention has the advantages that: the pump core is connected with the cavity of the base, the pump core and the cavity of the base can be separated, and are installed by mutual attraction of magnetic force, so that the rotating speed precision is high, and later-stage replacement and maintenance are facilitated; the rotor and the stator core are formed by laminating silicon steel sheets, and compared with the common motor, the motor can prevent scrap iron and cooling liquid; magnetic conductive plastic is adopted between the pump core and the base, so that the sealing performance is good, the water and electricity are prevented from leaking, and the safety index is high; the working principle of the permanent magnet synchronous motor is adopted, so that the starting current is small, the efficiency is high, the operation is simple, and the running is stable and reliable; long service life, low noise, no brush pollution and food grade FDA.

Drawings

FIG. 1 is a schematic view of the overall structure of a detachable dishwasher pump unit;

FIG. 2 is a schematic view of an assembled structure of a detachable dishwasher pump device;

FIG. 3 is a schematic view of the base structure of a detachable dishwasher pump unit;

FIG. 4 is a schematic diagram of a pump cartridge of a detachable dishwasher pump device;

FIG. 5 is a schematic view of the housing structure of a detachable dishwasher pump unit;

in the figure: 1. the detachable dishwasher water pump device comprises a detachable dishwasher water pump device body 2, a base 21, a base 22, a wiring socket 23, a stator core 24, a stator coil winding 25, a groove 26, a first guide cylinder 27, a second guide cylinder 28, a third guide cylinder 29, a cover plate 210, a first guide cylinder opening 211, a third guide cylinder opening 212, a sealing ring 213, a buckle 3, a pump core 31, a rotating shaft 32, a replaceable shaft sleeve 33, a radiating fan 34, a cage bar rotor core 35, a permanent magnet installation groove 36, a permanent magnet 37, an envelope 38, a sealing bearing 39, a sealing cover plate 310, a clamping groove 311, an impeller 312, a blade 313, a rear cover plate 314, a blade 315, an end cover 4, an outer cover 41, a winding drum 42, a water inlet 43, a water outlet 44, threads 45 and an outer cover buckle.

Detailed Description

The invention is further described with reference to the following figures and examples.

A detachable dishwasher water pump device comprises a detachable dishwasher water pump device body 1, a base 2, a base 21, a wiring socket 22, a stator core 23, a stator coil winding 24, a groove 25, a first guide cylinder 26, a second guide cylinder 27, a third guide cylinder 28, a cover plate 29, a first guide cylinder opening 210, a third guide cylinder opening 211, a sealing ring 212, a buckle 213, a pump core 3, a rotating shaft 31, a replaceable shaft sleeve 32, a cooling fan 33, a cage bar rotor core 34, a permanent magnet mounting groove 35, a permanent magnet 36, a jacket 37, a sealing bearing 38, a sealing cover plate 39, a clamping groove 310, an impeller 311, a blade 312, a rear cover plate 313, a blade 314, an end cover 315, an outer cover 4, a winding drum 41, a water inlet 42, a water outlet 43, a thread 44 and an outer cover buckle 45, wherein the base 2 is installed on the detachable dishwasher water pump device body 1 and used for providing power, the base 21 is installed on the base 2, the support is provided, the wiring socket 22 is installed at the bottom of the base 21 and used for connecting a power supply, the stator core 23 is installed in the base 21 and used for providing a magnetic field, the stator coil winding 24 is installed in the stator core 23 and used for generating current, the upper end of the stator core 23 is internally provided with a groove 25 used for placing a component, the groove 25 is internally provided with a first guide cylinder 26 used for placing the component, the tail end of the first guide cylinder 26 is provided with a second guide cylinder 27 used for placing the component, the upper end of the stator core 23 is positioned outside the base 21, the upper end of the stator core 23 is externally provided with a third guide cylinder 28 used for placing the component, the front end of the third guide cylinder 28 is connected with the cover plate 29 and used for providing sealing, the lower end of the cover plate 29 is connected with the base 21, the center of the upper end of the cover plate 29 is provided with a first guide cylinder opening 210 used for providing connection, the third guide cylinder opening 211 is arranged outside the first guide cylinder opening 210 and used for providing connection, a sealing ring 212 is installed outside the third guide cylinder opening 211 and is used for strengthening sealing, a buckle 213 is installed outside the sealing ring 212 and is a connecting component, a pump core 3 is installed on the base 2 and is used for providing power, a rotating shaft 31 is installed on the pump core 3 and is used for providing support and transmitting power, a replaceable shaft sleeve 32 is installed on the rotating shaft 31 and is used for providing support, a heat radiation fan 33 is installed on the left side of the replaceable shaft sleeve 32 and is used for radiating heat, a cage bar rotor core 34 is installed on the left side of the heat radiation fan 33 and is used for generating a magnetic field, a permanent magnet installation groove 35 is formed in the cage bar rotor core 34 and is used for placing components, a permanent magnet 36 is embedded in the permanent magnet installation groove 35 and is used for generating the magnetic field, envelopes 37 are installed at the left end and the right end of the cage bar rotor core 34 and are used for providing sealing, a sealing bearing 38 is installed at the left end of the rotating shaft 31 and is used for providing sealing and supporting, and a sealing cover plate 39 is installed outside the sealing bearing 38, for enhancing sealing, the sealing bearing 38 is located at the center of the inner side of the sealing cover plate 39, the left edge of the sealing cover plate 39 is provided with a clamping groove 310, which is a connecting part, the left side of the sealing cover plate 39 is provided with an impeller 311, for conveying liquid, the impeller 311 is provided with blades 312 for conveying liquid, the left side of the blades 312 is provided with a rear cover plate 313, for providing support, a blade 314 for pulverizing impurities is installed on the outer side of the rear cover plate 313, an end cap 315 is installed at the central top end of the blade 314, used for strengthening sealing, the pump core 3 is provided with an outer cover 4 used for protecting the water pump and determining the water flow direction, the outer cover 4 is provided with a winding drum 41 which is a supporting part, the winding drum 41 is provided with a water inlet 42, the water inlet is provided with a water outlet 43 on the side surface for water outlet, the water outlet is provided with a thread 44 which is a connecting part, and the edge of the winding drum 41 is provided with an outer cover buckle 45 which is a connecting part.

Further, the cage bar rotor core 34 is formed by installing a cage winding in the rotor core, the permanent magnet 36 is installed in a tangential manner, and a magnetic isolation material is additionally arranged between the rotating shaft 31 and the cage bar rotor core 34 in order to prevent the magnetic flux of the permanent magnet 36 from being short-circuited through the rotating shaft 31.

Further, the cage bar rotor core 34 needs to be laminated by silicon steel sheets, because the permanent magnet synchronous motor is basically driven by an inverter power supply, even if the output of a frequency converter generating sine waves contains high-frequency harmonic waves, eddy current loss can be generated if integral steel is used; the permanent magnet 36 is made of neodymium iron boron permanent magnet; first guide cylinder 26, third guide cylinder 28, apron 29 adopt magnetic conduction plastics, live stator core 23 parcel, can make stator core 23 and cage bar rotor core 34 production magnetic field when isolated liquid.

Further, the pump core 3 and the base 2 form an asynchronous starting permanent magnet synchronous motor, and the working principle is that after the motor is started, a rotor winding in the cage bar rotor core 34 does not generate a magnetic field any more, and the magnetic fields generated by the permanent magnets 36 and the stator core 23 interact with each other.

Furthermore, the top and the bottom of the stator core 23 are both positioned outside the base 21, so that heat dissipation is facilitated, the stator core 23 is formed by stacking silicon steel sheets with the thickness of 0.5mm, and the whole core is tightly pressed at two ends by pressing plates; the stator coil winding 24 is formed by a copper wire winding, electromotive force induced by the winding is generated after the stator coil winding is electrified, and the stator coil winding 24 is positioned in the base 21 to prevent water inflow and electric leakage.

Furthermore, four identical blades are vertically distributed in the blades 314 and used for crushing impurities in water, so that the water pump of the dishwasher is not easy to block.

Furthermore, the outer cover 4 and the base 2 are connected and mounted in a buckling mode, so that the mounting and the dismounting are convenient; the pump core 3 and the base 2 are installed by magnetic attraction, can be easily separated, and are convenient to replace and maintain in the later period.

The using method comprises the following steps: inserting the pump core 3 into the base 2, aligning the sealing cover plate 39 with the third guide cylinder opening 211, aligning the cage bar rotor core 34 with the first guide cylinder opening 210, sucking the cage bar rotor core 34 into the first guide cylinder 26 due to magnetic force, installing the rotating shaft 31 in the second guide cylinder 27, installing the sealing ring 212 on the second guide cylinder opening 211, covering the opening of the winding drum 41 on the outer cover 4 on the pump core 3, aligning the outer cover buckle 45 with the buckle 213 on the base 2, screwing, connecting the outer cover 4 with the base 2, switching on the wiring socket 22, electrifying the coil winding 24, generating a stator rotating magnetic field by the stator core 23, magnetizing the claw poles of the stator core 23 by the coil, exciting the rotor in the cage bar rotor core 34 to generate current in the cage winding to form a rotor rotating magnetic field, and accelerating the rotor in the cage bar rotor core 34 from standstill by asynchronous torque generated by the interaction of the stator rotating magnetic field and the rotor rotating magnetic field, in the process, the rotating speeds of the rotor permanent magnetic field and the stator rotating magnetic field are different, alternating torque is generated, when the rotor is accelerated to a speed close to the synchronous rotating speed, the rotating speeds of the rotor permanent magnetic field and the stator rotating magnetic field are close to the same, the speed of the stator rotating magnetic field is slightly larger than that of the rotor permanent magnetic field, the rotor permanent magnetic field and the stator rotating magnetic field interact to generate torque to pull the rotor in the cage bar rotor iron core 34 to a synchronous operation state, under the synchronous operation state, current is not generated in a rotor winding in the cage bar rotor iron core 34, only the permanent magnet 36 on the rotor generates a magnetic field at the moment and interacts with the stator rotating magnetic field to generate driving torque to drive the rotating shaft 31 to rotate, the rotating shaft 31 drives the impeller 311 to rotate, the impeller 311 rotates, liquid is continuously sucked from the water inlet 42 and discharged from the water outlet 43, the impeller 311 rotates to drive the blades 314 to rotate, and after impurities in the liquid are crushed, is discharged with the liquid.

Claims

1. A detachable dishwasher water pump device comprises a detachable dishwasher water pump device body (1), a base (2), a base (21), a wiring socket (22), a stator iron core (23), a stator coil winding (24), a groove (25), a first guide cylinder (26), a second guide cylinder (27), a third guide cylinder (28), a cover plate (29), a first guide cylinder opening (210), a third guide cylinder opening (211), a sealing ring (212), a buckle (213), a pump core (3), a rotating shaft (31), a replaceable shaft sleeve (32), a cooling fan (33), a cage bar rotor iron core (34), a permanent magnet mounting groove (35), a permanent magnet (36), a jacket (37), a sealing bearing (38), a sealing cover plate (39), a clamping groove (310), an impeller (311), blades (312), a rear cover plate (313), blades (314), an end cover (315), The detachable dishwasher water pump device comprises an outer cover (4), a winding drum (41), a water inlet (42), a water outlet (43), threads (44) and an outer cover buckle (45), wherein a base (2) is installed on a detachable dishwasher water pump device body (1), the base (21) is installed on the base (2), a wiring socket (22) is installed at the bottom of the base (21), a stator core (23) is installed in the base (21), a stator coil winding (24) is installed in the stator core (23), a groove (25) is formed in the upper end of the stator core (23), a first guide cylinder (26) is installed in the groove (25), a second guide cylinder (27) is installed at the tail end of the first guide cylinder (26), the upper end of the stator core (23) is located outside the base (21), a third guide cylinder (28) is installed outside the upper end of the stator core (23), a cover plate (29) is connected to the front end of the third guide cylinder (28), the lower end of the cover plate (29) is connected with the base (21), the center of the upper end of the cover plate (29) is provided with a first guide cylinder opening (210), a third guide cylinder opening (211) is arranged outside the first guide cylinder opening (210), a sealing ring (212) is arranged outside the third guide cylinder opening (211), a buckle (213) is arranged outside the sealing ring (212), a pump core (3) is arranged on the base (2), a rotating shaft (31) is arranged on the pump core (3), a replaceable shaft sleeve (32) is arranged on the rotating shaft (31), a cooling fan (33) is arranged on the left side of the replaceable shaft sleeve (32), a cage bar rotor core (34) is arranged on the left side of the cooling fan (33), a permanent magnet mounting groove (35) is arranged in the cage bar rotor core (34), a permanent magnet (36) is embedded in the permanent magnet mounting groove (35), envelopes (37) are arranged at the left end and the right end of the cage bar rotor core (34), a sealing bearing (38) is arranged at the left end of the rotating shaft (31), and a sealing cover plate (39) is arranged outside the sealing bearing (38), sealed bearing (38) are located sealed apron (39) inboard center department, sealed apron (39) left side edge is equipped with draw-in groove (310), impeller (311) are installed on sealed apron (39) left side, install blade (312) on impeller (311), back shroud (313) are installed in blade (312) left side, install blade (314) on back shroud (313) the outside, end cover (315) are installed on blade (314) center top, install dustcoat (4) on pump core (3), install reel (41) on dustcoat (4), install water inlet (42) on reel (41), water inlet side-mounting has delivery port (43), install screw thread (44) on the delivery port, dustcoat buckle (45) are installed at reel (41) edge.

2. A detachable dishwasher pump unit according to claim 1, characterized in that: cage bar rotor core (34) are for installing cage type winding in rotor core, and permanent magnet (36) mounting means is the tangential, for the magnetic flux that prevents permanent magnet (36) passes through pivot (31) short circuit, adds between pivot (31) and cage bar rotor core (34) and is equipped with magnetic material.

3. A detachable dishwasher pump unit according to claim 1, characterized in that: the cage bar rotor core (34) needs to be laminated by silicon steel sheets, because the permanent magnet synchronous motor is basically driven by an inverter power supply, even if the output of a frequency converter generating sine waves contains high-frequency harmonic waves, eddy current loss can be generated if integral steel is used; the permanent magnet (36) is made of a neodymium iron boron permanent magnet; first guide cylinder (26), third guide cylinder (28), apron (29) adopt magnetic conduction plastics, live stator core (23) parcel, can make stator core (23) and cage bar rotor core (34) output magnetic field when isolated liquid.

4. A detachable dishwasher pump unit according to claim 1, characterized in that: the pump core (3) and the base (2) form an asynchronous starting permanent magnet synchronous motor, and the working principle is that after the motor is started, a rotor winding in a cage bar rotor core (34) does not generate a magnetic field any more, and the magnetic fields generated by the permanent magnet (36) and the stator core (23) interact with each other.

5. A detachable dishwasher pump unit according to claim 1, characterized in that: the top and the bottom of the stator iron core (23) are both positioned outside the base (21) to facilitate heat dissipation, the stator iron core (23) is formed by laminating silicon steel sheets with the thickness of 0.5mm, and the whole iron core is tightly pressed at two ends by pressing plates; the stator coil winding (24) is formed by a copper wire winding, electromotive force induced by the winding is generated after the stator coil winding is electrified, and the stator coil winding (24) is positioned in the base (21) to prevent water inflow and electric leakage.

6. A detachable dishwasher pump unit according to claim 1, characterized in that: four same blades are vertically distributed in the blades (314) and used for crushing impurities in water, so that the water pump of the dishwasher is not easy to block.

7. A detachable dishwasher pump unit according to claim 1, characterized in that: the outer cover (4) and the base (2) are connected and mounted in a buckling mode, so that the mounting and the dismounting are convenient; the pump core (3) and the base (2) are installed by magnetic attraction, can be easily separated, and is convenient to replace and maintain in the later period.