A low-temperature antifreeze water-cooled motor pump unit and a high-pressure cleaner

A motor pump, water-cooled technology, applied in the direction of pump components, electrical components, machines/engines, etc., can solve the problems of motor pump cracking, machine freezing cracking, etc., and achieve the effect of preventing corrosion and solving low temperature antifreeze problems

Active Publication Date: 2020-03-27
SUMEC HARDWARE & TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is a potential hidden danger in the water-cooled motor pump unit. The water inside the used water-cooled motor pump will not be automatically discharged. When the machine encounters a low temperature environment below zero, the water in the pump will freeze and cause the motor pump to crack. , due to the large volume of high-pressure cleaners, users generally store the machines in the yard, so when the temperature is below zero in winter, the machine has the risk of freezing and cracking

Method used

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  • A low-temperature antifreeze water-cooled motor pump unit and a high-pressure cleaner
  • A low-temperature antifreeze water-cooled motor pump unit and a high-pressure cleaner
  • A low-temperature antifreeze water-cooled motor pump unit and a high-pressure cleaner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as Figure 1 to 4 As shown, a high-pressure cleaner includes a spray gun unit and a motor pump unit 9. Water from an external water source such as a municipal water pipe enters the motor pump unit 9 through the water inlet pipe 5, and flows into the spray gun unit through the pump outlet 7 after being pressurized. The nozzle of the spray gun unit forms a high-pressure water jet to spray out. The improvement of the present invention lies in the motor pump unit 9, so the spray gun unit will not be described in detail.

[0040] The motor pump unit 9 includes: a pump 2 and a water-cooled motor 1. The pump 2 has a pump inlet 7 and a pump outlet 8; the water-cooled motor 1 has an iron core 10 and a shell 11 close to the iron core 10. The body 11 is provided with a water-cooling cavity I12. The water-cooling cavity I12 has a water inlet 3 and a water outlet 4. The water inlet 3 is connected to an external water source through a water inlet pipe 5; the water outlet 4 is conne...

Embodiment 2

[0046] Such as Figure 5 As shown, the difference from the first embodiment is that, in this embodiment, at least one slot 16 connected to the housing 11 is provided in the water-cooling cavity I12, and the elastic body I13 is located in the slot 16 and close to the water-cooling rib 14. Arranging the elastic body I13 on the side of the water-cooled rib 14 can prevent the surface of the housing 11 from being corroded.

Embodiment 3

[0048] Such as Figure 6 to 11 As shown, the difference from the first embodiment is that in this embodiment, the water-cooled motor 1 is a brushless motor 17. The brushless motor 17 also includes a controller 18 and a controller water-cooled body 19 connected to the controller 18. The controller water-cooled body 19 is provided with a water-cooled cavity II20 communicating with the water-cooled cavity I12, and the periphery of the water-cooled cavity II20 is communicated with the top opening of the water-cooled cavity I12. The water-cooling cavity II20 has a controller water-cooling body water inlet 21, and a number of elastic bodies II22 are arranged in the water-cooling cavity II20. The function and principle of the elastic body II22 are the same as the elastic body I13, so it will not be repeated. The water-cooling cavity I12 extends in the axial direction to the top end surface 36 of the housing 11 and is arranged as an open opening. Based on this structure, the housing 11...

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Abstract

The invention discloses a low-temperature-resistant anti-freezing water-cooled motor pump unit and a high-pressure cleaning machine. The low-temperature-resistant anti-freezing water-cooled motor pumpunit comprises a pump having a pump water inlet and a pump water outlet and a water-cooled motor provided with an iron core and a case in contact with the iron core. A water-cooling chamber I is formed in the case and has a water inlet and a water outlet; and the water outlet is connected with the pump water inlet. The low-temperature-resistant anti-freezing water-cooled motor pump unit is characterized in that at least one elastomer I is arranged in the water-cooling chamber I; and after being extruded, the size of the elastomer I is changed and thus recoverable elastic contraction is caused. The low-temperature-resistant anti-freezing water-cooled motor pump unit and the high-pressure cleaning machine have the following beneficial effects: on the basis of elastic contraction of the elastomer in the water-cooling chamber, volume expansion after the water freezing is compensated, so that the low-temperature anti-freezing problem of the water-cooled motor pump unit and the high-pressure cleaning machine are solved effectively; and with the elastomer arranged at the outer surface between water-cooling ribs of the case, the surface of the case is protected from being corroded.

Description

Technical field [0001] The invention belongs to the technical field of cleaning equipment, and specifically relates to a low-temperature resistant and antifreeze water-cooled motor pump unit. Background technique [0002] 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. It mainly consists of a spray gun unit and a motor pump unit. The spray gun unit is responsible for generating different pressures according to actual needs. The motor pump unit is responsible for delivering water from the municipal water pipe to the spray gun unit. [0003] A motor pump usually includes a motor and a pump, and the pump can work normally under the drive of the motor to realize water delivery. As an electrical equipment, the motor generates a large amount of heat energy while converting electrical energy into mechanical energy, which increases the operating temperature...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K9/19H02K5/20H02K5/18H02K5/04
CPCH02K5/04H02K5/18H02K5/20H02K9/19F04B1/12F04B17/03F04B53/08
Inventor 林有余刘楷蔡济波刘昊
Owner SUMEC HARDWARE & TOOLS
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