All-in-one integrated high-pressure cleaner

By setting a cooling channel inside the washing machine casing, water is introduced into the motor and controller, carrying away and dissipating heat, thus solving the problem of unstable operation caused by high temperature of the motor and controller, and achieving a cooling effect for the motor and controller.

WO2026036471A1PCT designated stage Publication Date: 2026-02-19CHONGQING LEIMA TECHNOLOGY CO LTD
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Patent Information

Application Number
PCT/CN2024/118741
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-08-14
Filing Date
2024-09-13
Publication Date
2026-02-19

AI Technical Summary

Technical Problem

During operation, the motor and controller of the cleaning machine become unstable due to the high temperature environment, and existing technologies have not been able to effectively solve this problem.

Method used

Design an all-in-one integrated high-pressure washer. By setting a cooling channel inside the washer casing, water is introduced into the motor and controller, carrying away heat and being discharged through the pump, thereby cooling the motor and controller.

Benefits of technology

Without adding external devices, the temperature of the motor and controller was effectively reduced, improving the stable operation of the cleaning machine.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN2024118741_19022026_PF_FP_ABST
    Figure CN2024118741_19022026_PF_FP_ABST
Patent Text Reader

Abstract

An all-in-one integrated high-pressure cleaner, comprising a cleaner housing. A motor and a controller are provided in the cleaner housing, and a cooling flow channel is provided in the cleaner housing. A water outlet of the cooling flow channel is communicated with a low-pressure side of the cleaner, a water inlet of the cooling flow channel is located on the cleaner housing, and the cooling flow channel is located at the position where the motor and the controller are located. In the cleaner, the motor and the controller are cooled by using input water, and the cooling water after cooling enters a pump body and is discharged through a water outlet of the pump body, thereby reducing the temperature of the motor and the controller without adding any external device.
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Description

A multi-in-one integrated high-pressure cleaning machine TECHNICAL FIELD

[0001] The present application relates to a multi-in-one integrated high-pressure cleaning machine, belonging to the technical field of cleaning pump. BACKGROUND

[0002] The cleaning machine is a machine for conveying fluid or pressurizing fluid. It transmits the mechanical energy of the prime mover or other external energy to the liquid, so that the liquid energy is increased. The cleaning machine is mainly used to convey liquid such as water, oil, acid and alkali liquid, emulsion, suspension emulsion and liquid metal, and can also convey liquid, gas mixture and liquid containing suspended solid.

[0003] Before the cleaning machine starts, the cleaning machine shell is filled with the liquid to be conveyed; after starting, the impeller is driven to rotate at high speed by the shaft, and the liquid between the blades must also rotate. Under the action of centrifugal force, the liquid is thrown from the center of the impeller to the outer edge and obtains energy, and leaves the outer edge of the impeller at high speed into the volute cleaning machine shell. In the volute, the liquid is decelerated due to the gradual expansion of the flow channel, and part of the kinetic energy is converted into static pressure energy, and finally flows into the discharge pipeline at a higher pressure and is sent to the required place. When the liquid flows from the center of the impeller to the outer edge, a certain vacuum is formed at the center of the impeller. Since the pressure above the liquid surface of the tank is greater than the pressure at the inlet of the cleaning machine, the liquid is continuously pressed into the impeller. It can be seen that as long as the impeller rotates continuously, the liquid will be continuously sucked and discharged.

[0004] During the operation of the cleaning machine, the motor and the controller will be quickly heated, however, the high temperature environment is not conducive to the stable operation of the cleaning machine.

[0005] SUMMARY

[0006] The purpose of the present application is to provide a multi-in-one integrated high-pressure cleaning machine, which cools the motor and the controller of the cleaning machine by water inlet, and the cooling water enters the pump body after cooling, and is discharged through the water outlet of the pump body, thereby reducing the temperature of the motor and the controller of the cleaning machine without increasing external devices.

[0007] To solve the above technical problems, the technical scheme adopted by the present application is as follows:

[0008] A multi-in-one integrated high-pressure cleaning machine, comprising a cleaning machine shell, the cleaning machine shell having a motor and a controller therein, and a cooling flow channel in the cleaning machine shell; the water outlet of the cooling flow channel is communicated with the low pressure side of the cleaning machine, the water inlet of the cooling flow channel is located on the cleaning machine shell, and the cooling flow channel is located in the cleaning machine shell at the positions of the motor and the controller.

[0009] In the multi-in-one integrated high-pressure cleaning machine, the cleaning machine shell comprises a gear box front end cover, a middle box body, a gear box rear end cover and a controller shell, the gear box front end cover is installed on one side of the middle box body, the gear box rear end cover is installed on the other side of the middle box body, and the controller shell is installed on the gear box rear end cover; the middle box body is provided with a through slot, and the through slot, the gear box front end cover and the gear box rear end cover jointly form a cooling flow channel, and the water inlet of the cooling flow channel is located on the middle box body.

[0010] In the multi-in-one integrated high-pressure cleaning machine, the motor is a permanent magnet motor, a first gear is installed on the output shaft of the permanent magnet motor, the first gear is engaged with a second gear, the second gear is engaged with a third gear, and the second gear and the third gear are both arranged on the cleaning machine shell; the third gear is coaxially provided with a crankshaft, the crankshaft is connected with a plunger through a connecting rod, and the plunger is located in a pump body of the cleaning machine shell; the radius of the first gear is smaller than that of the second gear, and the radius of the second gear is smaller than that of the third gear.

[0011] In the multi-in-one integrated high-pressure cleaning machine, the cleaning machine further comprises a pump head structure, and the pump head structure is installed on the cleaning machine shell; the cleaning machine shell is provided with a lower plug hole, the pump head structure is provided with an upper plug hole barrel, and the lower end of the upper plug hole barrel is located in the lower plug hole; the outer diameter of the upper plug hole barrel is equal to the inner diameter of the lower plug hole, the cleaning machine shell around the lower plug hole is provided with a threaded hole, the pump head structure is provided with a fixing hole at a position corresponding to the threaded hole, a screw is arranged in the fixing hole, and the pump head structure is fixed on the cleaning machine shell through the screw.

[0012] In the multi-in-one integrated high-pressure cleaning machine, the number of the lower plug holes is three, the number of the upper plug hole barrels is the same as that of the lower plug holes, and the water inlet and the water outlet of the cleaning machine are both located on the pump head structure.

[0013] In the multi-in-one integrated high-pressure cleaning machine, the following method is used to cool the motor and the controller: the water source is introduced into the cooling flow channel through the water inlet of the cooling flow channel, the water source in the cooling flow channel flows through the cleaning machine shell of the motor and the controller, the heat generated by the motor and the controller is taken away, and then the water source enters the low-pressure side of the pump body, and is discharged from the water outlet of the cleaning machine under the action of the pump body.

[0014] Compared with the prior art, the motor and the controller of the cleaning machine are cooled by the water source, the water used for cooling enters the pump body after cooling, and is discharged from the water outlet of the pump body, so that the temperature of the motor and the controller of the cleaning machine is reduced without increasing external devices. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a structural schematic diagram of an embodiment of the present application;

[0016] Fig. 2 is a schematic diagram of the internal structure of an embodiment of the present application;

[0017] Fig. 3 is a schematic diagram of the internal structure of the intermediate box;

[0018] Fig. 4 is a schematic diagram of the structure of the pump head.

[0019] Reference numerals: 1-pump head structure, 2-inlet of the cooling flow channel, 3-washing machine shell, 4-controller housing, 5-gear box rear end cover, 6-intermediate box, 7-gear box front end cover, 8-plunger, 9-crankshaft, 10-third gear, 11-second gear, 12-first gear, 13-motor, 14-lower plug hole, 15-cooling flow channel, 16-fixing hole, 17-upper plug hole cylinder, 18-thread hole.

[0020] The application will be further described below in conjunction with the drawings and specific embodiments. DETAILED DESCRIPTION

[0021] Embodiment 1 of the application: a multi-in-one integrated high-pressure washing machine, comprising a washing machine shell 3, the washing machine shell 3 having a motor 13 and a controller therein, and having a cooling flow channel 15 therein; the outlet of the cooling flow channel 15 is in communication with the low-pressure side of the washing machine, and the inlet 2 of the cooling flow channel 15 is located on the washing machine shell 3, and the cooling flow channel 15 is located in the washing machine shell 3 at the position of the motor 13 and the controller.

[0022] The washing machine shell 3 comprises a gear box front end cover 7, an intermediate box 6, a gear box rear end cover 5 and a controller housing 4, the gear box front end cover 7 is installed on one side of the intermediate box 6, the gear box rear end cover 5 is installed on the other side of the intermediate box 6, and the controller housing 4 is installed on the gear box rear end cover 5; the intermediate box 6 has a through slot thereon, and the through slot, the gear box front end cover 7 and the gear box rear end cover 5 jointly form the cooling flow channel 15, and the inlet 2 of the cooling flow channel 15 is located on the intermediate box 6.

[0023] Embodiment 2: a multi-in-one integrated high-pressure washing machine, comprising a washing machine shell 3, the washing machine shell 3 having a motor 13 and a controller therein, and having a cooling flow channel 15 therein; the outlet of the cooling flow channel 15 is in communication with the low-pressure side of the washing machine, and the inlet 2 of the cooling flow channel 15 is located on the washing machine shell 3, and the cooling flow channel 15 is located in the washing machine shell 3 at the position of the motor 13 and the controller.

[0024] The cleaning machine shell 3 includes a gear box front end cover 7, a middle box body 6, a gear box rear end cover 5 and a controller housing 4, the gear box front end cover 7 is installed on one side of the middle box body 6, the gear box rear end cover 5 is installed on the other side of the middle box body 6, and the controller housing 4 is installed on the gear box rear end cover 5; the middle box body 6 has a through slot, and the through slot, the gear box front end cover 7 and the gear box rear end cover 5 jointly form a cooling flow channel 15, and the water inlet 2 of the cooling flow channel 15 is located on the middle box body 6.

[0025] The motor 13 is a permanent magnet motor 13, a first gear 12 is installed on an output shaft of the permanent magnet motor 13, the first gear 12 is engaged with a second gear 11, the second gear 11 is engaged with a third gear 10, and the second gear 11 and the third gear 10 are both arranged on the cleaning machine shell 3; the third gear 10 is coaxially provided with a crankshaft 9, the crankshaft 9 is hinged through a connecting rod and a plunger 8, and the plunger 8 is located in a pump body of the cleaning machine shell 3; the radius of the first gear 12 is smaller than that of the second gear 11, and the radius of the second gear 11 is smaller than that of the third gear 10.

[0026] Embodiment 3: A multi-in-one integrated high-pressure cleaning machine includes a cleaning machine shell 3, the cleaning machine shell 3 has a motor 13 and a controller, and the cleaning machine shell 3 has a cooling flow channel 15; a water outlet of the cooling flow channel 15 is communicated with a low-pressure side of the cleaning machine, a water inlet 2 of the cooling flow channel 15 is located on the cleaning machine shell 3, and the cooling flow channel 15 is located in the cleaning machine shell 3 at positions of the motor 13 and the controller.

[0027] The cleaning machine shell 3 includes a gear box front end cover 7, a middle box body 6, a gear box rear end cover 5 and a controller housing 4, the gear box front end cover 7 is installed on one side of the middle box body 6, the gear box rear end cover 5 is installed on the other side of the middle box body 6, and the controller housing 4 is installed on the gear box rear end cover 5; the middle box body 6 has a through slot, and the through slot, the gear box front end cover 7 and the gear box rear end cover 5 jointly form a cooling flow channel 15, and the water inlet 2 of the cooling flow channel 15 is located on the middle box body 6.

[0028] The motor 13 is a permanent magnet motor 13, a first gear 12 is installed on an output shaft of the permanent magnet motor 13, the first gear 12 is engaged with a second gear 11, the second gear 11 is engaged with a third gear 10, and the second gear 11 and the third gear 10 are both arranged on the cleaning machine shell 3; the third gear 10 is coaxially provided with a crankshaft 9, the crankshaft 9 is hinged through a connecting rod and a plunger 8, and the plunger 8 is located in a pump body of the cleaning machine shell 3; the radius of the first gear 12 is smaller than that of the second gear 11, and the radius of the second gear 11 is smaller than that of the third gear 10.

[0029] The cleaning machine further comprises a pump head structure 1, which is installed on the cleaning machine shell 3; the cleaning machine shell 3 is provided with lower plug holes 14, the pump head structure 1 is provided with upper plug hole barrels 17, the lower ends of the upper plug hole barrels 17 are located in the lower plug holes 14; the outer diameter of the upper plug hole barrels 17 is equal to the inner diameter of the lower plug holes 14, the cleaning machine shell 3 around the lower plug holes 14 is provided with threaded holes 18, the pump head structure 1 is provided with fixing holes 16 at positions corresponding to the threaded holes 18, the fixing holes 16 are provided with screws, and the pump head structure 1 is fixed on the cleaning machine shell 3 by the screws. The number of the lower plug holes 14 is three, the number of the upper plug hole barrels 17 is the same as that of the lower plug holes 14, and the water inlet and the water outlet of the cleaning machine are both located on the pump head structure 1.

[0030] The cleaning machine uses the following method to cool the motor 13 and the controller: the water source is introduced into the cooling flow channel 15 through the water inlet 2 of the cooling flow channel 15, the water source in the cooling flow channel 15 flows through the cleaning machine shell 3 of the motor 13 and the controller, takes away the heat generated by the motor 13 and the controller, and enters the low-pressure side of the pump body of the cleaning machine, and is discharged from the water outlet of the cleaning machine under the action of the pump body.

Claims

1. A multi-in-one integrated high pressure washer comprising a washer housing (3) having a motor (13) and a controller inside, characterized in that, The cleaning machine shell (3) has a cooling flow channel (15); the water outlet of the cooling flow channel (15) is communicated with the low pressure side of the cleaning machine, and the water inlet (2) of the cooling flow channel (15) is located on the cleaning machine shell (3); the cooling flow channel (15) is located in the cleaning machine shell (3) at the position of the motor (13) and the controller.

2. A multi-in-one integrated high pressure washer as claimed in claim 1, wherein, The cleaning machine shell (3) comprises a gear box front end cover (7), an intermediate box body (6), a gear box rear end cover (5) and a controller shell (4); the gear box front end cover (7) is installed on one side of the intermediate box body (6), the gear box rear end cover (5) is installed on the other side of the intermediate box body (6), and the controller shell (4) is installed on the gear box rear end cover (5); the intermediate box body (6) has a through slot; the through slot, the gear box front end cover (7) and the gear box rear end cover (5) cooperatively form the cooling flow channel (15); the water inlet (2) of the cooling flow channel (15) is located on the intermediate box body (6).

3. A multi-in-one integrated high pressure washer as claimed in claim 2, wherein, The motor (13) is a permanent magnet motor (13); a first gear (12) is installed on the output shaft of the permanent magnet motor (13); the first gear (12) is engaged with a second gear (11), and the second gear (11) is engaged with a third gear (10); the second gear (11) and the third gear (10) are both arranged on the cleaning machine shell (3); the third gear (10) is coaxially arranged with a crankshaft (9); the crankshaft (9) is hinged with a plunger (8) through a connecting rod; the plunger (8) is located in the pump body of the cleaning machine shell (3); the radius of the first gear (12) is smaller than that of the second gear (11), and the radius of the second gear (11) is smaller than that of the third gear (10).

4. A multi-in-one integrated high pressure washer as claimed in claim 3, wherein, The cleaning machine further comprises a pump head structure (1) which is installed on the cleaning machine shell (3); the cleaning machine shell (3) has a lower plug hole (14); the pump head structure (1) has an upper plug hole barrel (17); the lower end of the upper plug hole barrel (17) is located in the lower plug hole (14); the outer diameter of the upper plug hole barrel (17) is equal to the inner diameter of the lower plug hole (14); the cleaning machine shell (3) around the lower plug hole (14) has a threaded hole (18); the pump head structure (1) has a fixing hole (16) at a position corresponding to the threaded hole (18); the fixing hole (16) has a screw; the pump head structure (1) is fixed on the cleaning machine shell (3) through the screw.

5. A multi-in-one integrated high pressure washer as claimed in claim 4, wherein, The number of the lower plug holes (14) is three; the number of the upper plug hole barrels (17) is equal to that of the lower plug holes (14); the water inlets and outlets of the cleaning machine are both located on the pump head structure (1).

6. A multi-in-one integrated high pressure washer as claimed in claim 5, wherein, The motor (13) and the controller are cooled by the following method: water is introduced into the cooling flow channel (15) through the water inlet (2) of the cooling flow channel (15); the water in the cooling flow channel (15) flows through the cleaning machine shell (3) of the motor (13) and the controller, takes away the heat generated by the motor (13) and the controller, and enters the low pressure side of the pump body of the cleaning machine; and the water is discharged from the water outlet of the cleaning machine under the action of the pump body.

Citation Information

Patent Citations

  • Low-temperature-resistant anti-freezing water-cooled motor pump unit and high-pressure cleaning machine

    CN108377063A

  • Plunger pump

    CN109253070A

  • High pressure cleaning machine using water-cooled motor

    CN109450152A

  • Motor pump unit for handheld high-pressure washing machine and handheld high-pressure washing machine

    CN110145447A

  • Cooling flow channel structure of all-in-one high-pressure cleaning machine shell

    CN119103213A