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1. WO2020220506 - HANDHELD HIGH-PRESSURE WASHER WITH SILENT WATER-COOLED HIGH-EFFICIENCY ELECTRIC MOTOR

Publication Number WO/2020/220506
Publication Date 05.11.2020
International Application No. PCT/CN2019/099766
International Filing Date 08.08.2019
IPC
H02K 5/18 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
5Casings; Enclosures; Supports
04Casings or enclosures characterised by the shape, form or construction thereof
18with ribs or fins for improving heat transfer
H02K 5/20 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
5Casings; Enclosures; Supports
04Casings or enclosures characterised by the shape, form or construction thereof
20with channels or ducts for flow of cooling medium
H02K 9/19 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
9Arrangements for cooling or ventilating
19for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
F04B 1/12 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
1Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
12having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
F04B 17/03 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
17Pumps characterised by combination with, or adaptation to, specific driving engines or motors
03driven by electric motors
B05B 11/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
11Single-unit, i.e. unitary, hand-held apparatus in which flow of liquid or other fluent material is produced by the operator at the moment of use
CPC
B05B 11/30
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
11Single-unit, i.e. unitary, hand-held apparatus ; comprising a container and a discharge nozzle attached thereto; , in which flow of liquid or other fluent material is produced by ; the muscular energy of; the operator at the moment of use ; or by an equivalent manipulator independent from the apparatus
30the flow being effected by a pump
F04B 1/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
1Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
12having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
F04B 17/03
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
17Pumps characterised by combination with, or adaptation to, specific driving engines or motors
03driven by electric motors
H02K 5/18
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
5Casings; Enclosures; Supports
04Casings or enclosures characterised by the shape, form or construction thereof
18with ribs or fins for improving heat transfer
H02K 5/20
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
5Casings; Enclosures; Supports
04Casings or enclosures characterised by the shape, form or construction thereof
20with channels or ducts for flow of cooling medium
H02K 9/19
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
9Arrangements for cooling or ventilating
19for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Applicants
  • 江苏苏美达五金工具有限公司 SUMEC HARDWARE & TOOLS CO., LTD. [CN]/[CN]
Inventors
  • 林有余 LIN, Youyu
  • 刘楷 LIU, Kai
  • 蔡济波 CAI, Jibo
  • 吴玉华 WU, Yuhua
  • 汪洋 WANG, Yang
Agents
  • 南京纵横知识产权代理有限公司 NANJING ZONGHENG INTELLECTUAL PROPERTY AGENCY CO., LTD.
Priority Data
201910353067.629.04.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) HANDHELD HIGH-PRESSURE WASHER WITH SILENT WATER-COOLED HIGH-EFFICIENCY ELECTRIC MOTOR
(FR) MACHINE À LAVER PORTATIVE HAUTE PRESSION AVEC MOTEUR ÉLECTRIQUE SILENCIEUX À HAUT RENDEMENT REFROIDI À L'EAU
(ZH) 一种具有静音水冷高效电机的手持式高压清洗机
Abstract
(EN)
Disclosed is a handheld high-pressure washer with a silent water-cooled high-efficiency electric motor. The handheld high-pressure washer comprises: an electric motor pump unit, wherein the electric motor pump unit comprises a mini-pump and a water-cooled electric motor, the water-cooled electric motor is connected to the mini-pump, and the mini-pump is provided with a pump water inlet and a high-pressure water outlet; and a housing, wherein the housing is hermetically wrapped around the electric motor pump unit; the water-cooled electric motor comprises an electric motor housing; an electric motor shaft, a rotor and a stator core are mounted in the electric motor housing; the rotor is mounted on the electric motor shaft, and the stator core is located outside the rotor; the electric motor housing is provided with a circular side wall, and the stator core is attached to the side wall to form a heat conduction channel; and the electric motor housing is provided with at least one cooling channel passing through the side wall, a water inlet in communication with one end of the cooling channel, and a water outlet in communication with the other end of the cooling channel, the water inlet is connected to an external water source, and the water outlet is in communication with the pump water inlet. The present invention has the following beneficial effects: the electric motor uses water cooling to replace the existing air cooling; the waterproofing grades of the electric motor and the whole machine can reach IPX7 or even higher; and the machine is relatively safe and reliable.
(FR)
L'invention concerne une machine à laver portative à haute pression dotée d'un moteur électrique silencieux à haut rendement refroidi à l'eau. La machine à laver portative à haute pression comprend : une unité de pompe à moteur électrique, l'unité de pompe à moteur électrique comprenant une mini-pompe et un moteur électrique refroidi à l'eau, le moteur électrique refroidi à l'eau est relié à la mini-pompe, et la mini-pompe est pourvue d'une entrée d'eau de pompe et d'une sortie d'eau à haute pression ; et un boîtier, le boîtier étant hermétiquement enveloppé autour de l'unité de pompe à moteur électrique ; le moteur électrique refroidi à l'eau comprenant un boîtier de moteur électrique ; un arbre de moteur électrique, un rotor et un noyau de stator étant montés dans le boîtier de moteur électrique ; le rotor est monté sur l'arbre de moteur électrique, et le noyau de stator est situé à l'extérieur du rotor ; le boîtier de moteur électrique est pourvu d'une paroi latérale circulaire, et le noyau de stator est fixé à la paroi latérale pour former un canal de conduction de chaleur ; et le boîtier de moteur électrique est pourvu d'au moins un canal de refroidissement traversant la paroi latérale, une entrée d'eau en communication avec une extrémité du canal de refroidissement, et une sortie d'eau en communication avec l'autre extrémité du canal de refroidissement, l'entrée d'eau est reliée à une source d'eau externe, et la sortie d'eau est en communication avec l'entrée d'eau de pompe. La présente invention présente les effets bénéfiques suivants : le moteur électrique utilise un refroidissement d'eau pour remplacer le refroidissement d'air existant ; les indices d'étanchéité du moteur électrique et de l'ensemble de la machine peuvent atteindre IPX7 ou même plus élevé ; et la machine est relativement sûre et fiable.
(ZH)
本发明公开一种具有静音水冷高效电机的手持式高压清洗机,包括:电机泵单元,电机泵单元包括迷你泵和水冷电机,水冷电机与迷你泵相连接,迷你泵具有泵进水口和高压出水口;及外壳,外壳密封包裹电机泵单元;水冷电机包括电机壳;电机壳内安装电机轴、转子和定子铁芯;转子安装在电机轴上,定子铁芯位于转子外部;电机壳具有一圈侧壁,定子铁芯紧贴侧壁形成热传导通道;电机壳设有至少一个途经侧壁的冷却通道、连通冷却通道一端的进水口和连通冷却通道另一端的出水口,进水口连接外部水源,出水口与泵进水口相连通。本发明具有的有益效果:电机采用水冷替代现有的风冷,电机及整机的防水等级可以达到IPX7甚至更高,机器更安全可靠。
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