WO2020220506A1 - Machine à laver portative haute pression avec moteur électrique silencieux à haut rendement refroidi à l'eau - Google Patents

Machine à laver portative haute pression avec moteur électrique silencieux à haut rendement refroidi à l'eau Download PDF

Info

Publication number
WO2020220506A1
WO2020220506A1 PCT/CN2019/099766 CN2019099766W WO2020220506A1 WO 2020220506 A1 WO2020220506 A1 WO 2020220506A1 CN 2019099766 W CN2019099766 W CN 2019099766W WO 2020220506 A1 WO2020220506 A1 WO 2020220506A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
cooled
motor
housing
silent
Prior art date
Application number
PCT/CN2019/099766
Other languages
English (en)
Chinese (zh)
Inventor
林有余
刘楷
蔡济波
吴玉华
汪洋
Original Assignee
江苏苏美达五金工具有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江苏苏美达五金工具有限公司 filed Critical 江苏苏美达五金工具有限公司
Publication of WO2020220506A1 publication Critical patent/WO2020220506A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

Definitions

  • the invention belongs to the technical field of hand-held cleaning machines, and in particular relates to a hand-held high-pressure cleaning machine with a silent water-cooled high-efficiency motor.
  • the high-pressure cleaner is a kind of equipment that uses water or a mixture of cleaning agents as the cleaning medium and uses high-pressure water to clean the surface of objects.
  • the high-pressure cleaner can be used to clean cars, courtyards, floors, railings, doors and windows, etc. It is more Efficient and convenient, its main components are spray gun and host.
  • the host includes motor, pump and battery or external power cord.
  • the spray gun and host are connected by a water inlet pipe.
  • the spray gun is responsible for forming water flows of different shapes according to actual needs, and the host is responsible for removing water from Municipal tap water or buckets are converted into high-pressure water flow and delivered to the spray gun. Commonly, the host is placed on the ground fixedly or movably. The host has a large volume and heavier weight.
  • the use process is carried out by the spray gun, and the scope of use is limited. There are still many inconveniences in operation.
  • Patent US20090045271A1 discloses a hand-held electric pressure washer, including a pump 16, a motor 14, a casing 20, and a handle 62 and a side handle 68 connected to the casing 20.
  • the nozzle 58 is connected to the casing 20 through a gun barrel 54.
  • This patent What is actually disclosed is a low-pressure washer whose pressure cannot meet the requirements of a high-pressure washer, because the international standard clearly defines a high-pressure washer as a working pressure greater than or equal to 2.5MPa. In actual use, the working pressure can only exceed 2.5MPa.
  • the waterproof level of the corresponding handheld high-pressure cleaning machine in the standard requires at least IPX7, and the machine is required to work for a short time under water.
  • the rear of the motor 14 is provided with a cooling fan 18, and the corresponding position of the casing 20 is provided with a number of vents 22.
  • the existence of the vents 22 makes the waterproof level of the handheld electric pressure washer reach Less than the requirements of a handheld high-pressure cleaner. What the market really needs is a handheld high-pressure cleaner.
  • the contradiction between motor cooling and waterproofing is an industry problem that has not been solved.
  • Patent CN205570600U also discloses a hand-held washing machine, which aims to improve the portability of the washing machine and solve the problem of mobility.
  • the difference between this technical solution and the patent US20090045271A1 is that the patent US20090045271A1 is connected to an external power source through the power cord 30, and the external power source supplies power to the motor 14, while the CN205570600U machine includes a battery 170, which is powered by the battery, and replaces the external power source with the battery.
  • the patent CN205570600U also discloses only a low-pressure washer, not a handheld high-pressure washer. Its working pressure cannot reach or exceed the 2.5MPa pressure required by the high-pressure washer.
  • CN205570600U does not disclose any motor cooling and waterproof sealing solutions.
  • the provided is not a hand-held high-pressure washer. From the CN205570600U manual, it can be seen that there are cooling vents at the rear of the motor. The corresponding position on the casing must be left with vents, and its waterproof level cannot meet the requirements of the handheld high-pressure washer.
  • the high-speed operation of the motor pump will bring about a sharp rise in temperature, which is not only transmitted to the user through the shell, which seriously affects the comfort of use, but also affects the operating efficiency and life of the machine.
  • the noise generated by the open casing and motor blades also directly affects the user's operating comfort.
  • the purpose of the present invention is to overcome the deficiencies in the prior art and provide a hand-held high-pressure cleaner with a silent water-cooled high-efficiency motor, which has the characteristics of good cooling effect, low operating noise, high cleaning pressure and strong waterproof ability.
  • the present invention discloses a hand-held high-pressure cleaner with a silent water-cooled high-efficiency motor, including:
  • the motor pump unit includes a mini pump and a water-cooled motor.
  • the water-cooled motor is connected to the mini pump.
  • the mini pump has a pump inlet and a high-pressure water outlet;
  • Shell contains the motor pump unit
  • the water-cooled motor includes a motor shell; a rotor and a stator core are sealed in the motor shell;
  • the rotor is installed on the motor shaft, and the stator core is located outside the rotor;
  • the motor shell has a ring of side walls, and the inner surface of the side wall is close to the stator core to form a heat conduction channel;
  • the motor shell is provided with at least one cooling channel passing through the side wall, The water inlet at one end of the cooling channel is connected to the water outlet at the other end of the cooling channel, the water inlet is connected to an external water source, and the water outlet is connected to the water inlet of the pump.
  • the motor housing is further provided with a branch channel communicating with the water inlet end of the cooling channel and a confluence channel communicating with the water outlet end of the cooling channel.
  • cooling passage extends in a direction parallel to the axis of the motor casing
  • shunt passage extends in a diameter direction parallel to the motor casing
  • confluence passage extends in the circumferential direction of the motor casing.
  • the motor housing includes an end cover and a housing
  • the housing is a tank-shaped body with one end open and the other end closed, the end cover is sealed and installed at the opening of the housing, the end cover is close to the mini pump, and the housing is far away from the mini pump;
  • the water inlet, cooling channel, branch channel and confluence channel are all arranged on the shell, and the water outlet is arranged on the end cover.
  • the opening of the housing has an annular groove extending along the circumferential direction thereof, and the end cover and the annular groove are sealed and connected to form a confluence channel.
  • the bearing II is installed in the center hole of the end cover
  • the bearing I is installed in the center hole of the housing
  • the two ends of the motor shaft are installed in the bearing I and the bearing II respectively.
  • the shell is a structure formed by integral processing.
  • the outer surface of the cooling channel is provided with a plurality of heat conducting ribs extending to the outer surface of the motor housing.
  • a speed reduction mechanism is provided between the mini pump and the water-cooled motor.
  • the reduction mechanism is a planetary gear reduction.
  • mini pump is a single plunger pump or a swash plate three plunger pump.
  • the water-cooled motor is a rare earth permanent magnet brushless motor.
  • the housing has an integrally connected receiving part and a holding part, the mini pump and the water-cooling motor are arranged in the receiving part, the holding part extends obliquely in a direction away from the receiving part, and the holding part is provided with a power switch.
  • the hand-held high-pressure cleaner also includes a battery pack, the rated voltage of the battery pack is 18-60V; the battery pack is arranged in the handheld part or detachably arranged in the waterproof compartment at the end of the handheld part, and the waterproof compartment is provided with a waterproof compartment cover .
  • the hand-held high-pressure cleaner further includes a battery pack, the rated voltage of the battery pack is 18-60V; the battery pack is connected to the end of the handheld part in a sealed plug-in connection.
  • the motor housing is provided with a lead-out hole through which a wire of the power supply machine is drawn, and the motor lead is sealed at the lead-out hole.
  • the outer diameter of the stator core does not exceed 90 mm.
  • the outer diameter of the stator core is 38 to 58 mm.
  • the water-cooled motor or hand-held high-pressure cleaner has a waterproof rating of at least IPX7.
  • the weight of the hand-held high-pressure cleaner does not exceed 4.2 kg.
  • the minimum working pressure of the mini pump is not less than 2.5Mpa.
  • the housing seals the motor pump unit.
  • the motor adopts water cooling instead of the existing air cooling, so the waterproof level of the motor and the whole machine can reach IPX7 or even higher through the sealing design, the machine is safer and more reliable, and meets the waterproof requirements of the handheld high-pressure washer.
  • the motor uses non-circulating water for cooling, the cooling effect is greatly improved, the motor temperature is significantly reduced, the motor heating problem is effectively solved, the motor efficiency is improved, and the output pressure and flow rate are improved under the same power consumption, and the water outlet pressure can be improved. Reach or even exceed 2.5MPa, significantly improve the cleaning ability, and on the basis of more convenience, the application range has also been broadened.
  • the temperature of the permanent magnet materials of the motor is well controlled, which effectively solves the problem of high temperature demagnetization of permanent magnets or rare earth permanent magnet materials, and effectively prevents Irreversible demagnetization causes the motor to fail, and the reliability of the motor is greatly improved.
  • the fan noise is avoided. Because the motor shell is closed and there is no air inlet or outlet on the shell, the machine becomes quieter and more compact, which effectively prevents noise from affecting people. s damage.
  • Figure 1 is a schematic structural diagram of a preferred embodiment of the present invention.
  • FIG. 2 is a perspective view of the structure of the motor pump unit in the embodiment shown in FIG. 1;
  • Figure 3 is a front view of the structure of the motor pump unit in the embodiment shown in Figure 1;
  • Figure 4 is a cross-sectional view along the section line AA in Figure 3;
  • Figure 5 is a cross-sectional view along section line BB in Figure 3;
  • Figure 6 is a perspective sectional view of the water-cooled motor in the embodiment shown in Figure 1;
  • Figure 7 is a partial enlarged view of C in Figure 6;
  • Figure 8 is a three-dimensional exploded view of the water-cooled motor in the embodiment shown in Figure 1;
  • Fig. 9 is a perspective view of the structure of the motor housing in the embodiment shown in Fig. 1.
  • a handheld high-pressure washer 39 with a silent water-cooled high-efficiency motor includes: a motor pump unit 29 and a housing 43.
  • the housing 43 contains the motor pump unit 29, and the housing 43 seals the motor pump unit. 29.
  • the motor pump unit 29 includes a mini pump 5 and a water-cooled motor 32.
  • the water-cooled motor 32 is connected to the mini pump 5 to drive the mini pump 5 to work.
  • the connection here means that the water-cooled motor 32 and the mini pump 5 need to be connected in structure.
  • the fixing in the housing 43 on the other hand, means that the water-cooled motor 32 and the mini pump 5 need to be connected in power to realize torque transmission.
  • the mini pump 5 has a pump water inlet 7 and a high-pressure water outlet 6.
  • the high-pressure water outlet 6 is connected to the spray gun 38 to spray the high-pressure water stream in a certain form to achieve high-pressure cleaning.
  • the water-cooled motor 32 includes a motor shell 45; a rotor 34 and a stator iron core 18 are sealed in the motor shell 45; both ends of the motor shaft 16 are rotatably installed in the motor shell 45 through a bearing I14 and a bearing II28, respectively.
  • 34 is installed on the motor shaft 16 to transmit torque.
  • the stator core 18 is located outside the rotor 34.
  • the rotor 34 rotates when torque is generated by the electromagnetic principle.
  • the motor housing 45 has a ring of side walls 17 that surrounds the outer circumference of the stator core 18 and makes the stator core 18 abut the side walls 17 to form a heat conduction path. The heat generated by the stator core 18 is therefore transferred to On the side wall 17 to facilitate subsequent heat dissipation.
  • the motor housing 45 is provided with at least one cooling channel 19 passing through the side wall 17, especially the outer surface of the side wall 17, a water inlet 9 communicating with one end of the cooling channel 19, and an outlet communicating with the other end of the cooling channel 19
  • the water inlet 8 and the water inlet 9 are sealed with a water inlet connector 11 through the water inlet connector O-ring 21.
  • the water inlet connector 11 can be connected to the connector 36 of the water inlet pipe 37, and the other end of the water inlet pipe 37 is connected to an external water source.
  • a water outlet connector 27 is installed at the water outlet 8 through a water outlet connector O-ring 33, and the water outlet connector 27 is communicated with the pump water inlet 7 through a connecting pipe 10.
  • the cleaning water from the external water source when not pressurized, first acts as cooling water in the cooling channel 19 to absorb the heat transferred from the stator core 18 to the side wall 17, and then enters the mini pump 5 for pressurization to form a high-pressure water flow for cleaning .
  • the whole shell 43 does not need an air-cooled opening, and the whole machine can be completely sealed to reach a higher waterproof level IPX7, which meets the standards of hand-held high-pressure washers, and the pressure can reach 2.5MPa or more of high-pressure washers. Since the water-cooled motor 32 does not require cooling fan blades and the motor housing 45 is a sealed structure, the motor running noise is very low, and the purpose of silence is achieved.
  • the power of the water-cooled motor 32 can also be improved, so that the outlet pressure of the mini pump 5 reaches the high pressure standard, that is, not less than 2.5 MPa, which greatly improves the cleaning ability.
  • the number of cooling channels 19 can be set to more than two.
  • the motor housing 45 is also provided with a branch channel 15 communicating with the water inlet end of the cooling channel 19 and a confluence channel communicating with the water outlet end of the cooling channel 19 31.
  • the cooling water enters the branch passage 15 through the water inlet 9, and then diverges into each cooling passage 19 to cool the motor housing 45, and then collects through the confluence passage 31 and is discharged from the water outlet 8 to the mini pump 5.
  • the motor housing 45 includes an end cover 2 and a housing 1.
  • the housing 1 is a pot-shaped body that is open at one end and closed at the other end and is integrally formed.
  • the end cover 2 is sealed and installed in the housing.
  • the end cover 2 is connected with the mini pump 5 so as to realize the connection and fixation of the water-cooled motor 29 and the mini pump 5.
  • the end cover 2 is close to the mini pump 5 and the housing 1 is far away from the mini pump 5; the water inlet 9, the cooling channel 17, the branch channel 15 and the confluence channel 31 are all arranged on the housing 1, and the water outlet 8 is arranged on the end cover 2.
  • the cooling passage 19 extends in a direction parallel to the axis of the casing 1
  • the shunt passage 15 extends in a diameter direction parallel to the casing 1
  • the confluence passage 31 extends in the circumferential direction of the casing 1.
  • the confluence channel 31 can be arranged in this way.
  • the opening of the housing 1 has an annular groove 35 extending in the circumferential direction thereof.
  • a ring of shell inner wall 48 is formed on the inside and a ring of shell outer wall 49 is formed on the outside.
  • the end cover 2 also has a ring of end cover inner wall 46 and a ring of end cover outer wall 47.
  • the end cover inner wall 46 is connected to the The shell inner wall 48 forms a sealed connection, the end cover outer wall 47 forms a sealed connection with the shell outer wall 49 through the second O-ring, and the annular groove 35 forms a confluence channel 31 for cooling water to flow through the sealed connection.
  • a bearing II28 is installed in the center hole of the end cover 2
  • a bearing I14 is installed in the center hole of the housing 1
  • both ends of the motor shaft 16 are installed in the bearing I14 and the bearing II28, respectively.
  • the outer surface of the cooling channel 19 is provided with a number of heat conducting ribs 30 extending to the outer surface of the motor housing 45, and the heat conducting ribs 30 can extend To the shell 1, it can also be extended to the end cover 2 to further improve the cooling capacity.
  • a deceleration mechanism 23 is provided between the mini pump 5 and the water-cooled motor 32.
  • the speed reduction mechanism 23 is arranged in the cavity on the front side of the end cover 2, and the speed reduction mechanism 23 is a planetary gear reduction.
  • the mini pump 5 is a single plunger pump or a swash plate three plunger pump.
  • the water-cooled motor 32 is a rare earth permanent magnet brushless motor.
  • the housing 43 has an integrated receiving part 3 and a holding part 40.
  • the mini pump 5 and the water-cooled motor 32 are arranged in the holding part 3.
  • the holding part 40 extends obliquely in a direction away from the holding part 3.
  • the holding part 40 A power switch 41 is provided on it.
  • the power switch 41 is connected in the power supply circuit to realize the start-stop control of the whole machine.
  • the washing machine can be self-powered.
  • the handheld high-pressure washing machine 39 also includes a battery pack 4, the rated voltage of the battery pack 4 is 18-60V; the battery pack 4 is set In the hand-held part 40 or detachably provided in the waterproof compartment 42 at the end of the hand-held part 40, the waterproof compartment 42 is provided with a waterproof compartment cover 44.
  • the waterproof compartment cover 44 can adopt a sliding manner to realize the opening and closing of the waterproof compartment 42, and can also adopt a pivotal connection to realize the opening and closing of the waterproof compartment 42 to facilitate the taking and placing of the battery pack 4.
  • the battery pack 4 is connected to the end of the handle 40 in a sealed plug-in connection.
  • the handle 40 is provided with contacts, and the corresponding part of the battery pack 4 is also provided with contacts. After the battery pack 4 is inserted in place, the two The contacts of the user are connected to form a complete power supply circuit, while meeting the waterproof requirements.
  • the motor housing 45 is provided with a lead-out hole 13 through which the power supply wire 12 is drawn, and the motor lead 12 is sealed at the lead-out hole 13, so as to ensure that the inside of the motor is sealed and ensure electrical safety.
  • the size of the receiving portion 3 of the housing 43 should not be too large, so the outer diameter of the stator core 18 does not exceed 90 mm, and further, the outer diameter of the stator core 18 is 38-58 mm. Similarly, in order to reduce the fatigue of hand-held use, the weight of the hand-held high-pressure cleaner 39 does not exceed 4.2 kg.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

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.
PCT/CN2019/099766 2019-04-29 2019-08-08 Machine à laver portative haute pression avec moteur électrique silencieux à haut rendement refroidi à l'eau WO2020220506A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910353067.6A CN110138131B (zh) 2019-04-29 2019-04-29 一种具有静音水冷高效电机的手持式高压清洗机
CN201910353067.6 2019-04-29

Publications (1)

Publication Number Publication Date
WO2020220506A1 true WO2020220506A1 (fr) 2020-11-05

Family

ID=67575623

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/099766 WO2020220506A1 (fr) 2019-04-29 2019-08-08 Machine à laver portative haute pression avec moteur électrique silencieux à haut rendement refroidi à l'eau

Country Status (2)

Country Link
CN (1) CN110138131B (fr)
WO (1) WO2020220506A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114233594A (zh) * 2021-12-21 2022-03-25 安徽博一流体传动股份有限公司 一种具有智能化高效散热效果的柱塞泵

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110145447B (zh) * 2019-04-29 2020-04-14 江苏苏美达五金工具有限公司 一种手持式高压清洗机用电机泵单元及手持式高压清洗机
CN112090678B (zh) * 2020-09-15 2021-08-27 湖南工业职业技术学院 一种用于建筑装饰材料的粉刷机构
CN112386182B (zh) * 2020-12-08 2022-03-25 江苏苏美达五金工具有限公司 一种洗地刷及水冷防水电机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102292544A (zh) * 2009-02-13 2011-12-21 阿尔弗雷德·凯驰两合公司 马达泵单元
CN205231948U (zh) * 2015-12-17 2016-05-11 宁波沪江电机有限公司 一种水冷高压清洗机电机
CN108160366A (zh) * 2016-12-06 2018-06-15 苏州宝时得电动工具有限公司 手持式高压清洗机
CN110052342A (zh) * 2019-04-29 2019-07-26 江苏苏美达五金工具有限公司 一种防水型充电式水陆两用高压清洗机

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2769323B2 (ja) * 1988-06-29 1998-06-25 アイシン・エィ・ダブリュ株式会社 減速機付モータ駆動装置及び電動車両
CN2624512Y (zh) * 2003-04-17 2004-07-07 力致科技股份有限公司 往复暨旋转回动装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102292544A (zh) * 2009-02-13 2011-12-21 阿尔弗雷德·凯驰两合公司 马达泵单元
CN205231948U (zh) * 2015-12-17 2016-05-11 宁波沪江电机有限公司 一种水冷高压清洗机电机
CN108160366A (zh) * 2016-12-06 2018-06-15 苏州宝时得电动工具有限公司 手持式高压清洗机
CN110052342A (zh) * 2019-04-29 2019-07-26 江苏苏美达五金工具有限公司 一种防水型充电式水陆两用高压清洗机

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114233594A (zh) * 2021-12-21 2022-03-25 安徽博一流体传动股份有限公司 一种具有智能化高效散热效果的柱塞泵
CN114233594B (zh) * 2021-12-21 2023-10-31 安徽博一流体传动股份有限公司 一种具有智能化高效散热效果的柱塞泵

Also Published As

Publication number Publication date
CN110138131B (zh) 2020-07-31
CN110138131A (zh) 2019-08-16

Similar Documents

Publication Publication Date Title
WO2020220506A1 (fr) Machine à laver portative haute pression avec moteur électrique silencieux à haut rendement refroidi à l'eau
WO2020220503A1 (fr) Rondelle haute pression amphibie rechargeable résistante à l'eau
CN110107495B (zh) 一种具有双液冷泵的手持便携式清洗机
WO2020220504A1 (fr) Groupe motopompe pour machine à laver à haute pression portative et machine à laver à haute pression portative
CN107905995B (zh) 一种水冷式无刷电机泵单元及高压清洗设备
CN109412348A (zh) 一种双层防触电水冷式电机、电机泵单元及高压清洗设备
WO2021027382A1 (fr) Ensemble de tambour externe et lave-linge
CN108514967B (zh) 一种手持直流高压水枪
CN111822750B (zh) 一种具有钻头冷却功能的手电钻
KR101869231B1 (ko) 차량용 전동 압축기
CN111162595B (zh) 一种可在野外使用的充电设备
CN202984729U (zh) 一种电钻
CN109327111B (zh) 一种防触电水冷式无刷电机、电机泵单元及高压清洗设备
CN207413658U (zh) 一种手持式清洗机
CN211966021U (zh) 一种具有钻头冷却功能的手电钻
CN207238613U (zh) 变压器/电抗器散热片清洗枪
CN210522673U (zh) 高效型循环注油砂磨机
CN216421381U (zh) 一种等离子切割焊机
CN209448591U (zh) 一种防水式模型用电磁电机
CN206154086U (zh) 具有切换式磁阻马达的电动研磨机
CN205343016U (zh) 一种手持式无刷电镐
CN104019039A (zh) 轻便型高扬程万能自吸水泵
WO2019076349A1 (fr) Machine de nettoyage à haute pression portative
CN214014038U (zh) 一种便于安装和拆卸的电机轴
CN208330719U (zh) 一种散热效率高的齿轮泵

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19927378

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19927378

Country of ref document: EP

Kind code of ref document: A1