CN-111009994-B - Water pump for dish-washing machine and dish-washing machine with same

CN111009994BCN 111009994 BCN111009994 BCN 111009994BCN-111009994-B

Abstract

The invention discloses a water pump for a dish washer and the dish washer with the same, the water pump for the dish washer comprises a plastic package motor, a heat dissipation fan blade and a heat dissipation fan blade, wherein the plastic package motor comprises a plastic package shell, a stator iron core, a stator winding and a rotor, the stator iron core and the stator winding are molded in the wall of the plastic package shell, an installation cavity is formed in the plastic package shell, the rotor is rotatably arranged in the installation cavity, a groove extending along the axial direction of the rotor is formed in the outer end face of the plastic package shell, the pump body is arranged on the plastic package shell and is in transmission connection with a rotor shaft of the rotor, one part of the heat dissipation fan blade is matched in the groove, the other part of the heat dissipation fan blade protrudes out of the outer end face of the plastic package shell, and the heat dissipation fan blade is connected with the rotor shaft to rotate together with the rotor shaft. The water pump for the dish washer has the advantages of convenience in use, good heat dissipation effect and the like.

Inventors

GU WENHAI
MO XIANQIU

Assignees

佛山市威灵洗涤电机制造有限公司
佛山市威灵洗涤电机制造有限公司

Dates

Publication Date: 20260421
Application Date: 20181008
Priority Date: 20181008

Claims (9)

1. A water pump for a dishwasher, comprising: the plastic package motor comprises a plastic package shell, a stator iron core, a stator winding and a rotor, wherein the stator iron core and the stator winding are in plastic package in the wall of the plastic package shell, an installation cavity is formed in the plastic package shell, the rotor is rotatably arranged in the installation cavity, and a groove extending along the axial direction of the rotor is formed in the outer end face of the plastic package shell; the pump body is arranged on the plastic package shell and is in transmission connection with the rotor shaft of the rotor; A heat dissipation fan blade, wherein one part of the heat dissipation fan blade is matched in the groove, the other part of the heat dissipation fan blade protrudes out of the outer end surface of the plastic package shell, the heat dissipation fan blade is connected with the rotor shaft to rotate together with the rotor shaft; the plastic package shell is provided with a first end face and a second end face, the groove is formed on the second end face, the second end face is provided with an upper wind shielding boss and a lower wind shielding boss which surround the groove and are spaced in the up-down direction, and the upper wind shielding boss and the lower wind shielding boss protrude outwards from the second end face of the plastic package shell; in the axial direction of the plastic package shell, the outer ends of the heat dissipation fan blades are flush with the upper wind shielding boss and the lower wind shielding boss or are positioned on the inner sides of the upper wind shielding boss and the lower wind shielding boss; The two ends of the upper wind shielding boss are in the same horizontal plane, and the two ends of the lower wind shielding boss are in the same horizontal plane; The heat dissipation fan blade includes: A central shaft; A plurality of blades; The plastic package motor further comprises two bearings, the bearings are installed in the plastic package shell, two ends of the rotor shaft respectively penetrate through the two bearings, and the two bearings are located on the inner side of the outer end of the stator winding in the axial direction of the plastic package shell.
2. The water pump for a dishwasher of claim 1, wherein the first end face is provided with a first shaft hole, the second end face is provided with a second shaft hole, one end of the rotor shaft penetrates through the first shaft hole to be in transmission connection with the pump body, and the other end penetrates through the second shaft hole to be connected with the heat dissipation fan blade.
3. The water pump for a dishwasher of claim 1, wherein the plastic package housing is provided with a heat dissipation hole communicating the groove and the installation cavity.
4. The water pump for a dishwasher of claim 1, wherein the bearing is integrally formed with the plastic housing by injection molding.
5. The water pump for a dishwasher of claim 1, wherein the central shaft is connected to the rotor shaft; The blades are arranged at intervals along the circumferential direction of the central shaft, and each blade extends along the axial direction of the central shaft.
6. The water pump for a dishwasher of claim 5, wherein the air guide ring extends obliquely from inside to outside in a direction away from the plastic package housing in a radial direction of the central shaft.
7. The water pump for a dishwasher of claim 5, wherein each of the blades is provided with a relief notch provided at a junction of an inner end surface of the blade in a radial direction and an inner end surface in an axial direction.
8. The water pump for a dishwasher of claim 1, wherein the heat dissipating fan is a plastic piece.
9. A dishwasher, characterized by comprising a water pump for a dishwasher according to any one of claims 1-8.

Description

Water pump for dish-washing machine and dish-washing machine with same Technical Field The invention relates to the technical field of electric appliance manufacturing, in particular to a water pump for a dish washer and the dish washer with the water pump for the dish washer. Background The dish washer among the related art uses plastic envelope motor in the water pump, can improve the silence effect and the dampproofing characteristic of water pump, but plastic envelope motor only relies on plastic envelope casing to externally conduct heat, and the water pump need set up in the inclosed chassis of dish washer when using, leads to plastic envelope motor's heat dissipation condition relatively poor, influences dish washer's operation requirement, influences user's use experience. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the water pump for the dish washing machine, which has the advantages of convenience in use, good heat dissipation effect and the like. The invention also provides a dish-washing machine with the water pump for the dish-washing machine. In order to achieve the aim, an embodiment of the first aspect of the invention provides a water pump for a dish washer, which comprises a plastic package motor, a pump body and a heat dissipation fan blade, wherein the plastic package motor comprises a plastic package shell, a stator iron core, a stator winding and a rotor, the stator iron core and the stator winding are molded in the wall of the plastic package shell, a mounting cavity is formed in the plastic package shell, the rotor is rotatably arranged in the mounting cavity, a groove extending along the axial direction of the rotor is formed in the outer end face of the plastic package shell, the pump body is arranged on the plastic package shell and is in transmission connection with a rotor shaft of the rotor, one part of the heat dissipation fan blade is matched in the groove, the other part of the heat dissipation fan blade protrudes out of the outer end face of the plastic package shell, and the heat dissipation fan blade is connected with the rotor shaft to rotate along with the rotor shaft. The water pump for the dish washer has the advantages of convenience in use, good heat dissipation effect and the like. In addition, the water pump for a dishwasher according to the above-described embodiment of the present invention may have the following additional technical features: According to one embodiment of the invention, the plastic package shell is provided with a first end face and a second end face, the first end face is provided with a first shaft hole, the second end face is provided with a second shaft hole, one end of the rotor shaft penetrates through the first shaft hole to be in transmission connection with the pump body, the other end penetrates through the second shaft hole to be connected with the heat dissipation fan blade, and the groove is formed in the second end face. According to one embodiment of the invention, the plastic package shell is provided with a heat dissipation hole communicated with the groove and the mounting cavity. According to one embodiment of the invention, the plastic package motor further comprises two bearings, the bearings are mounted in the plastic package shell, and two ends of the rotor shaft respectively pass through the two bearings. According to one embodiment of the invention, both of the bearings are located inside the outer end of the stator winding in the axial direction of the plastic package. According to one embodiment of the invention, the bearing is integrally formed with the plastic housing by injection molding. According to one embodiment of the invention, the second end face is provided with an upper wind shielding boss and a lower wind shielding boss surrounding the groove and spaced apart in the up-down direction. According to one embodiment of the invention, in the axial direction of the plastic package shell, the outer ends of the heat dissipation fan blades are flush with or positioned inside the upper wind shielding boss and the lower wind shielding boss. According to one embodiment of the invention, the two ends of the upper wind shielding boss are in the same horizontal plane and the two ends of the lower wind shielding boss are in the same horizontal plane. According to one embodiment of the invention, the heat dissipation fan blade comprises a central shaft and a plurality of blades, wherein the central shaft is connected with the rotor shaft, the blades are arranged at intervals along the circumferential direction of the central shaft, and each blade extends along the axial direction of the central shaft. According to one embodiment of the invention, the water pump for a dishwasher further comprises an air guide ring connected to the plurality of blades and spaced apart from the central shaft, respectively. Acc