CN111271241A - Motor pump unit of high-pressure cleaning machine suitable for internal gearing speed reduction transmission - Google Patents
Motor pump unit of high-pressure cleaning machine suitable for internal gearing speed reduction transmission Download PDFInfo
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- CN111271241A CN111271241A CN202010140530.1A CN202010140530A CN111271241A CN 111271241 A CN111271241 A CN 111271241A CN 202010140530 A CN202010140530 A CN 202010140530A CN 111271241 A CN111271241 A CN 111271241A
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- motor
- pump unit
- gear
- motor pump
- pressure washer
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention provides a motor pump unit of a high-pressure cleaning machine suitable for internal gearing speed reduction transmission, which comprises: the high-pressure pump assembly 100, the oil cylinder assembly 200 and the high-pressure washer motor pump unit 300; the oil cylinder assembly includes: a large gear 240, a gear shaft 230, a swash plate, and a thrust bearing 250; the high pressure pump assembly comprises: a pressurizing element; the small gear can drive a pressurizing element of the high-pressure pump assembly to reciprocate through a thrust bearing 250 supported by a swash plate after being subjected to internal meshing deceleration with the large gear 240; the high pressure washer motor pump unit includes: a motor bracket; the motor support includes: the motor stator bearing assembly comprises a motor stator core mounting surface 317, a positioning spigot 311, a motor rotor bearing mounting hole 316, a bull gear shaft bearing mounting hole 314, a bull gear cavity 312, a pinion gear cavity 315 and a gear grease limiting wall 313. The invention can make the speed reducer of the motor pump unit compact.
Description
Technical Field
The invention relates to the field of motor devices, in particular to a motor pump unit of a high-pressure cleaning machine suitable for internal gearing speed reduction transmission, and particularly relates to a motor and a motor support for internal gearing speed reduction transmission.
Background
The high-pressure water jet cleaning technology is an efficient and energy-saving physical cleaning technology, and a high-pressure cleaning machine is the most environment-friendly, most economical and most scientific cleaning equipment which is generally recognized in the world at present and is widely applied to the fields of industry, commerce, civil use and the like. The motor pump unit of the high-pressure cleaning machine taking the series excited motor (or the direct current motor) as power comprises a high-pressure pump assembly, an oil cylinder assembly, the motor pump unit of the high-pressure cleaning machine and the like. The output end of the motor pump unit of the high-pressure cleaning machine is provided with a pinion; the oil cylinder assembly is provided with a large gear, a gear shaft, a swash plate and a plane bearing; the high-pressure pump assembly is provided with a plunger, a water seal, a one-way valve and other pressurizing elements. When the pump works, the motor pinion is meshed with the bull gear to reduce the speed and then drives the plunger of the pump to do reciprocating motion through the thrust bearing supported by the swash plate, so that the pressurizing function of the pump is realized. The traditional reduction gear at present adopts external meshing transmission. When the big gear and the small gear of the external meshing structure are in transmission, the contact ratio of the two gears is small, the transmission continuity is poor, and the noise is high; meanwhile, due to the action of centrifugal force, the externally meshed structural lubricating grease is easy to be thrown away from the tooth surface under the action of centrifugal force, so that the lubrication of the gear is poor, and the service life of the gear is shortened.
Patent CN201081005Y discloses an internal engagement transmission structure and an external engagement structure, in the internal engagement scheme, since the gearwheel is radially positioned by means of a thrust bearing, the positioning accuracy is low, which may cause transmission instability, especially at the moment of starting. In the external meshing scheme, because the gears belong to external meshing, the superposition coefficient of the gears is low, and the transmission stability of the gears is poor; and the center distance of two external meshing gears (namely the motor and the pump) is larger than that of the internal meshing scheme, so that the external meshing scheme not only needs larger size of the motor bracket, but also the size of the motor pump is increased.
Disclosure of Invention
In view of the defects in the prior art, the invention aims to provide a motor pump unit of a high-pressure cleaning machine, which is suitable for internal gearing speed reduction transmission.
According to the invention, the motor pump unit of the high-pressure cleaning machine suitable for internal gearing speed reduction transmission comprises: the high-pressure pump assembly 100, the oil cylinder assembly 200 and the high-pressure washer motor pump unit 300; the high pressure washer motor pump unit 300 includes: the output end of the motor pump unit of the high-pressure cleaning machine; the output end of the motor pump unit of the high-pressure cleaning machine is provided with a pinion 360; the oil cylinder assembly includes: a large gear 240, a gear shaft 230, a swash plate, and a thrust bearing 250; the high pressure pump assembly comprises: a pressurizing element; the small gear can drive a pressurizing element of the high-pressure pump assembly to reciprocate through a thrust bearing 250 supported by a swash plate after being subjected to internal meshing deceleration with the large gear 240; the high pressure washer motor pump unit includes: a motor bracket; the motor support includes: the motor stator core mounting surface 317, the positioning spigot 311, the motor rotor bearing mounting hole unit 316, the large gear shaft bearing mounting hole 314, the large gear cavity 312, the small gear cavity 315 and the motor rotor bearing mounting hole unit 316; the motor bracket can mount the motor rotor 350 and the motor stator 320; the motor bracket can connect the motor pump unit 300 of the high-pressure cleaning machine with the oil cylinder assembly 200; the motor bracket can realize the meshed position relation of the big gear and the small gear; the motor bracket can limit the position of gear engagement lubrication and grease replacement; the high pressure washer motor pump unit 300 further includes: a bull gear volume 312, a pinion volume 315; the bull gear 240 is disposed in the bull gear receptacle 312; the pinion gear 360 is disposed in the pinion receiving cavity 315; the pinion receiving cavity 315 is located within the circle formed by the bull receiving cavity 312.
Preferably, the high pressure washer motor pump unit 300 further includes: gear grease limiting wall 313 and internal lubricating grease; the gear grease limiting wall 313 limits the internal lubricating grease; the gear grease limiting wall 313 is an annular wall.
Preferably, the high pressure washer motor pump unit 300 further includes: a motor stator core mounting surface 317; the motor stator 320 is mounted to the motor stator core mounting surface 317.
Preferably, the high pressure washer motor pump unit 300 further includes: a motor rotor bearing mounting hole 316, a motor rotor bearing 330; the motor rotor bearing 330 is arranged in the motor rotor bearing mounting hole 316; the motor rotor bearing 330 supports a motor rotor 350.
Preferably, the high pressure washer motor pump unit 300 further includes: positioning spigot 311, pump cylinder 210; the positioning spigot 311 can perform positioning, and the positioning spigot 311 connects the motor pump unit 300 of the high-pressure washer with the pump cylinder 210.
Preferably, the high pressure washer motor pump unit 300 further includes: a pinion shaft bearing mounting hole 314, a pinion shaft bearing 340; the gear shaft bearing 340 is mounted to the pinion shaft bearing mounting hole 314.
Preferably, the cylinder assembly 200 further comprises: a cylinder assembly bearing 220; the gear shaft bearing 340 and the cylinder assembly bearing 220 support the gear shaft 230 and the large gear 240 together.
Preferably, the pressurizing element includes: a plunger 110; the plunger 110 is disposed on the high pressure pump assembly.
Preferably, the motor bracket 310 is a plastic bracket.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides a motor structure for internal gearing transmission of a motor pump unit of a high-pressure cleaning machine, in particular to a design of a motor bracket, which enables a speed reducer of the motor pump unit to realize internal gearing transmission and has compact structure and low cost; the grease of the gear can be limited;
2. according to the technical scheme provided by the invention, the reduction gearbox and the motor support are integrated together, namely, the stator and the rotor of the motor are arranged at one end of the motor support, and the gear reduction structure is arranged at the other end of the motor support, so that the material cost is reduced, the structure is more compact, and meanwhile, the grease limiting wall in the reduction gearbox not only can save the grease consumption, but also can prevent the grease from splashing.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic view showing the overall composition of a motor pump unit in an example of the present invention.
Fig. 2 is a schematic view of the outer shape of a motor in an example of the present invention.
Fig. 3 is a schematic axial cross-section of an installed embodiment of the present invention.
Fig. 4 is a schematic side sectional view of the motor support structure of the present invention.
Fig. 5 is a schematic structural diagram of the motor bracket of the present invention.
In the figure:
Plunger 110 gear grease limiting wall 313
Large gear shaft bearing mounting hole 314 of oil cylinder assembly 200
Cylinder assembly bearing 220 motor rotor bearing mounting hole 316
Thrust bearing 250 motor rotor bearing 330
Gear shaft bearing 340 of motor pump unit 300 of high-pressure cleaning machine
Positioning spigot 311 pinion 360
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
As shown in fig. 1 to 5, there is provided a high pressure washer motor pump unit adapted for internal gearing reduction transmission according to the present invention, comprising: the high-pressure pump assembly 100, the oil cylinder assembly 200 and the high-pressure washer motor pump unit 300; the high pressure washer motor pump unit 300 includes: the output end of the motor pump unit of the high-pressure cleaning machine; the output end of the motor pump unit of the high-pressure cleaning machine is provided with a pinion 360; the oil cylinder assembly includes: a large gear 240, a gear shaft 230, a swash plate, and a thrust bearing 250; the high pressure pump assembly comprises: a pressurizing element; the small gear can drive a pressurizing element of the high-pressure pump assembly to reciprocate through a thrust bearing 250 supported by a swash plate after being subjected to internal meshing deceleration with the large gear 240; the high pressure washer motor pump unit includes: a motor bracket; the motor support includes: a motor stator core mounting surface 317, a positioning spigot 311, a motor rotor bearing mounting hole unit 316, a bull gear shaft bearing mounting hole 314, a bull gear cavity 312, a pinion gear cavity 315 and a motor rotor bearing hole 330; the motor bracket can mount the motor rotor 350 and the motor stator 320; the motor bracket can connect the motor pump unit 300 of the high-pressure cleaning machine with the oil cylinder assembly 200; the motor bracket can realize the meshed position relation of the big gear and the small gear; the motor bracket can limit the position of gear engagement lubrication and grease replacement; the high pressure washer motor pump unit 300 further includes: a bull gear volume 312, a pinion volume 315; the bull gear 240 is disposed in the bull gear receptacle 312; the pinion gear 360 is disposed in the pinion receiving cavity 315; the pinion receiving cavity 315 is located within the circle formed by the bull receiving cavity 312.
The invention aims to provide a motor structure for internal gearing transmission of a motor pump unit of a high-pressure cleaning machine, in particular to a design of a motor support integrated transmission case, which enables a speed reducer of the motor pump unit to realize internal gearing (realized by positioning a small gear containing cavity in a large gear containing cavity), has compact structure and low cost (realized by changing aluminum materials originally belonging to an oil cylinder into a containing cavity of a gear in the transmission case made of engineering plastics, namely by material division), and can limit grease of the gear (realized by adding a circle of wall in the containing cavity).
Preferably, the high pressure washer motor pump unit 300 further includes: gear grease limiting wall 313 and internal lubricating grease; the gear grease limiting wall 313 limits the internal lubricating grease; the gear grease limiting wall 313 is an annular wall.
Preferably, the high pressure washer motor pump unit 300 further includes: a motor stator core mounting surface 317; the motor stator 320 is mounted to the motor stator core mounting surface 317.
Preferably, the high pressure washer motor pump unit 300 further includes: a motor rotor bearing mounting hole 316, a motor rotor bearing 330; the motor rotor bearing 330 is arranged in the motor rotor bearing mounting hole 316; the motor rotor bearing 330 supports a motor rotor 350.
Preferably, the high pressure washer motor pump unit 300 further includes: positioning spigot 311, pump cylinder 210; the positioning spigot 311 can perform positioning, and the positioning spigot 311 connects the motor pump unit 300 of the high-pressure washer with the pump cylinder 210.
Preferably, the high pressure washer motor pump unit 300 further includes: a pinion shaft bearing mounting hole 314, a pinion shaft bearing 340; the gear shaft bearing 340 is mounted to the pinion shaft bearing mounting hole 314.
Preferably, the cylinder assembly 200 further comprises: a cylinder assembly bearing 220; the gear shaft bearing 340 and the cylinder assembly bearing 220 support the gear shaft 230 and the large gear 240 together.
Preferably, the pressurizing element includes: a plunger 110; the plunger 110 is disposed on the high pressure pump assembly.
Preferably, the motor bracket includes: a motor bracket 310; the pinion receiving cavity 315 and the bull receiving cavity 312 are disposed on a bracket side of the motor bracket 310.
Preferably, the motor bracket 310 is a plastic bracket.
Specifically, in one embodiment, a high pressure washer is comprised of a high pressure pump assembly 100, a cylinder assembly 200, and a high pressure washer motor pump unit 300. The output end of the motor pump unit of the high-pressure cleaning machine is provided with a pinion gear 340; the oil cylinder assembly is provided with a large gear 240, a gear shaft 230, a swash plate and a plane bearing 250; the high pressure pump assembly is provided with a pressurizing element such as a plunger 110. When the pump works, the motor pinion gear 340 drives the plunger 110 of the high-pressure pump to do reciprocating motion through the thrust bearing 250 supported by the swash plate after being meshed with the large gear 240 in a speed reduction mode, and the pressurization function of the pump is achieved.
The high-pressure washer motor pump unit is equipped with the motor support, and it has many-sided effect: the first is used for installing the motor rotor 350 and the motor stator 320; secondly, the connecting device is used for connecting the motor pump unit 300 of the high-pressure cleaning machine with the oil cylinder assembly 200; thirdly, the position relation for realizing the meshing of the big gear and the small gear; fourthly, limiting the position of gear meshing lubrication and grease replacement;
the invention provides a motor structure for internal gearing transmission of a motor pump unit of a high-pressure cleaning machine, in particular to a design of a motor bracket, which ensures that a speed reducer of the motor pump unit has compact structure and low cost and limits grease of a gear; according to the technical scheme provided by the invention, the reduction gearbox and the motor support are integrated together, namely, the stator and the rotor of the motor are arranged at one end of the reduction gearbox, and the gear reduction structure is arranged at the other end of the reduction gearbox, so that the material cost is reduced, the structure is more compact, and meanwhile, the grease limiting wall in the reduction gearbox not only can save the grease consumption, but also can prevent the grease from splashing.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (9)
1. A high pressure washer motor pump unit adapted for internal gearing reduction gearing, comprising: the high-pressure cleaning machine comprises a pressure pump assembly (100), an oil cylinder assembly (200) and a high-pressure cleaning machine motor pump unit (300);
the high-pressure washer motor pump unit (300) comprises: the output end of the motor pump unit of the high-pressure cleaning machine;
the output end of the motor pump unit of the high-pressure cleaning machine is provided with a pinion (360);
the oil cylinder assembly includes: a large gear (240), a gear shaft (230), a swash plate, and a thrust bearing (250);
the high pressure pump assembly (100) comprises: a pressurizing element;
the small gear (360) can be in mesh with the large gear (240) to decelerate and then drive the pressurizing element to reciprocate through a thrust bearing (250) supported by a swash plate;
the high pressure washer motor pump unit includes: a motor bracket (310);
the motor bracket 310 includes: the motor rotor bearing assembly comprises a motor stator core mounting surface (317), a positioning spigot (311), a motor rotor bearing mounting hole unit (316), a large gear shaft bearing mounting hole (314), a large gear accommodating cavity (312), a small gear accommodating cavity (315) and a motor rotor bearing mounting hole (316);
the motor bracket can be used for mounting a motor rotor assembly (350) and a motor stator (320);
the motor support can be connected with a motor pump unit (300) of the high-pressure cleaning machine and the oil cylinder assembly (200);
the motor bracket 310 further includes a motor gear box having:
a bull gear receptacle (312), a pinion receptacle (315);
the pinion containing cavity (315) is located in a circle formed by the bull gear containing cavity (312);
the gearwheel (240) is arranged in the gearwheel accommodating cavity (312);
the pinion (360) is disposed in the pinion receptacle (315).
2. The high pressure washer motor pump unit adapted for use in an internal gearing down drive of claim 1, wherein said motor gear box further comprises: a gear grease limiting wall (313) and internal lubricating grease;
the gear grease limiting wall (313) limits the internal lubricating grease;
the gear grease limiting wall (313) is an annular wall.
3. The high-pressure washer motor pump unit adapted for internal gearing reduction transmission of claim 1, characterized in that the high-pressure washer motor pump unit (300) further comprises: a motor stator core mounting surface (317);
a motor stator (320) is mounted on the motor stator core mounting surface (317).
4. The high-pressure washer motor pump unit adapted for internal gearing reduction transmission of claim 1, characterized in that the high-pressure washer motor pump unit (300) further comprises: a motor rotor bearing mounting hole (316) and a motor rotor bearing (330);
the motor rotor bearing (330) is arranged in the motor rotor bearing mounting hole (316);
the motor rotor bearing (330) supports a motor rotor (350).
5. The high-pressure washer motor pump unit adapted for internal gearing reduction transmission of claim 1, characterized in that the high-pressure washer motor pump unit (300) further comprises: a positioning spigot (311) and a pump cylinder (210);
the positioning spigot (311) can be used for positioning, and the positioning spigot (311) is used for connecting the motor pump unit (300) of the high-pressure cleaning machine with the pump oil cylinder (210).
6. The high-pressure washer motor pump unit adapted for internal gearing reduction transmission of claim 1, characterized in that the high-pressure washer motor pump unit (300) further comprises: a large gear shaft bearing mounting hole (314) and a gear shaft bearing (340);
the gear shaft bearing (340) is mounted in the large gear shaft bearing mounting hole (314).
7. The high-pressure washer motor pump unit adapted for inside gearing reduction transmission according to claim 6, characterized in that said cylinder assembly (200) further comprises: a cylinder assembly bearing (220);
the gear shaft bearing (340) and the oil cylinder assembly bearing (220) jointly support the gear shaft (230) and the large gear (240).
8. The high pressure washer motor pump unit adapted for use in an internal gearing down drive of claim 1, wherein said pressurizing element comprises: a plunger (110);
the plunger (110) is disposed on the high pressure pump assembly.
9. The high-pressure washer motor pump unit adapted for internal gearing reduction transmission of claim 1, characterized in that the motor holder (310) is a plastic holder.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010140530.1A CN111271241A (en) | 2020-03-03 | 2020-03-03 | Motor pump unit of high-pressure cleaning machine suitable for internal gearing speed reduction transmission |
| PCT/CN2021/081381 WO2021175334A1 (en) | 2020-03-03 | 2021-03-17 | High-pressure cleaning machine motor pump unit suitable for internal meshing deceleration transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010140530.1A CN111271241A (en) | 2020-03-03 | 2020-03-03 | Motor pump unit of high-pressure cleaning machine suitable for internal gearing speed reduction transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111271241A true CN111271241A (en) | 2020-06-12 |
Family
ID=70995539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010140530.1A Pending CN111271241A (en) | 2020-03-03 | 2020-03-03 | Motor pump unit of high-pressure cleaning machine suitable for internal gearing speed reduction transmission |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111271241A (en) |
| WO (1) | WO2021175334A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021175334A1 (en) * | 2020-03-03 | 2021-09-10 | 上海亿力电器有限公司 | High-pressure cleaning machine motor pump unit suitable for internal meshing deceleration transmission |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60129533U (en) * | 1984-02-10 | 1985-08-30 | 三菱電機株式会社 | internal gear device |
| DE3612936A1 (en) * | 1986-04-17 | 1987-10-22 | Kaercher Gmbh & Co Alfred | ENGINE PUMP UNIT FOR A HIGH PRESSURE CLEANING DEVICE |
| DE10237557A1 (en) * | 2002-08-16 | 2004-02-26 | Alfred Kärcher Gmbh & Co. Kg | Swashplate pump especially for high pressure cleaning appliances has swashplate drive with pinion meshing with gear ring installed on swashplate concentrically to rotational axis, and revolving around axis parallel to swashplate |
| DE102007006284A1 (en) * | 2007-02-01 | 2008-08-07 | Alfred Kärcher Gmbh & Co. Kg | Motor pump unit for high pressure cleaning device, has internal gear designed as independent component, which is held by interlinking form closure elements of housing and internal gear in housing in twistable secure manner |
| CN202834012U (en) * | 2012-09-03 | 2013-03-27 | 北新集团建材股份有限公司 | Gear lubrication box |
| CN109209809B (en) * | 2018-09-14 | 2024-01-05 | 上海亿力电器有限公司 | Motor pump unit |
| CN111271241A (en) * | 2020-03-03 | 2020-06-12 | 上海亿力电器有限公司 | Motor pump unit of high-pressure cleaning machine suitable for internal gearing speed reduction transmission |
| CN212106177U (en) * | 2020-03-03 | 2020-12-08 | 上海亿力电器有限公司 | Motor pump unit of high-pressure cleaning machine suitable for internal gearing speed reduction transmission |
-
2020
- 2020-03-03 CN CN202010140530.1A patent/CN111271241A/en active Pending
-
2021
- 2021-03-17 WO PCT/CN2021/081381 patent/WO2021175334A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021175334A1 (en) * | 2020-03-03 | 2021-09-10 | 上海亿力电器有限公司 | High-pressure cleaning machine motor pump unit suitable for internal meshing deceleration transmission |
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| Publication number | Publication date |
|---|---|
| WO2021175334A1 (en) | 2021-09-10 |
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| CB02 | Change of applicant information |
Address after: 201100 Building 2, No. 1318, Xiangyang Road, Minhang District, Shanghai Applicant after: SHANGHAI YILI ELECTRIC Co.,Ltd. Applicant after: Zhejiang Yili electromechanical Co., Ltd Address before: 201100 Building 2, No. 1318, Xiangyang Road, Minhang District, Shanghai Applicant before: SHANGHAI YILI ELECTRIC Co.,Ltd. Applicant before: ZHEJIANG YILI CLEANING EQUIPMENT Co.,Ltd. |
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