An anti-shock water-cooled brushless motor, motor pump unit and high-pressure cleaning equipment

A brushless motor, water-cooled technology, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve problems such as damage to onboard electronic components, solve electrical safety problems, solve high-temperature demagnetization problems, and improve service life.

Active Publication Date: 2019-11-12
SUMEC HARDWARE & TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For rare earth permanent magnet brushless motors, in addition to controlling the temperature of the motor body, the temperature of the controller must also be effectively controlled. According to the actual test data, it can be concluded that the local temperature of the controller is often higher than that due to the internal high-power electronic components. Motor body, and excessive temperature will often cause irreversible damage to the onboard electronic components in the controller

Method used

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  • An anti-shock water-cooled brushless motor, motor pump unit and high-pressure cleaning equipment
  • An anti-shock water-cooled brushless motor, motor pump unit and high-pressure cleaning equipment
  • An anti-shock water-cooled brushless motor, motor pump unit and high-pressure cleaning equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Such as Figures 1 to 4 As shown, a high-pressure cleaning device includes a spray gun unit and a motor pump unit. The motor pump unit 9 includes a pump 7 , a brushless motor and a controller water cooling body 3 . The brushless motor includes a brushless motor body 5 and a controller 2, and the controller 2 controls the operation of the brushless motor body 5. The brushless motor body 5 is a rare earth permanent magnet brushless motor, which includes an iron core 8 and a housing 4 for accommodating the iron core 8. As a typical motor type, a NdFeB permanent magnet brushless motor can be selected. The pump 7 has a pump water inlet 11 and a pump water outlet 12, and the pump water outlet 12 is connected to the spray gun unit through a water pipe to realize water spraying and cleaning. The casing 4 includes a receiving portion 407 and an annular cavity 401 formed on the receiving portion 407 along a circumference of the receiving portion 407 . The accommodating portion ...

Embodiment 2

[0094] Such as Figure 14 and 15 As shown, the difference from Embodiment 1 is that in this embodiment, at least one third heat-conducting rib 412 is provided between the annular cavity 401 and the receiving portion 407, and the annular cavity 401 passes through the third thermal-conducting rib 412 and the receiving portion 407. connected. The third heat-conducting rib 412 also plays a role of connecting and supporting the annular cavity 401 , so that heat can be quickly transferred to the annular cavity 401 to accelerate heat dissipation and cooling. Since the annular cavity 401 is provided with the third heat conduction rib 412 inside for heat conduction, there is no need to additionally provide the second heat conduction rib 404 , so the overall volume is relatively compact, the weight is light, and the cost is also low.

Embodiment 3

[0096] The difference from Embodiment 1 or 2 is that in this embodiment, the controller water-cooling body 3 is disposed outside the casing 4 in the circumferential direction, and is in sealing connection with the annular cavity 401 of the casing 4 through a seal.

[0097] In the present invention, the first heat conducting rib 306 , the second heat conducting rib 404 and the third heat conducting rib 412 not only serve as functional parts to realize heat conduction and external radiation, but also serve as structural parts to improve local strength. In the present invention, both the first sealing ring 13 and the second sealing ring 17 are "O" rings, which have good sealing performance and assemblability.

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PUM

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Abstract

The invention discloses an anti-electric-shock water-cooled brushless motor, a motor pump unit and high-pressure cleaning equipment. The motor pump unit comprises a pump, a brushless motor and a controller water-cooling body, wherein a housing comprises an accommodating portion and an annular cavity; the brushless motor and the pump are connected; the controller controls the brushless motor; the lower temperature surface is in contact with the higher temperature surface, and the controller water-cooling body is provided with a first water port; a cooling runner is formed by extending into thecontroller water-cooling body along the first water port; the annular cavity is separated from the accommodating portion through a separation bin; the accommodating portion wraps and is tightly attached to an iron core; the housing is connected with the controller water-cooling body to connect the annular cavity with the cooling runner; the annular cavity forms a second water port outside the housing; and the second water port or the first water port is connected with a water inlet of the pump through a connecting water pipe. The anti-electric-shock water-cooled brushless motor has the beneficial effects of separately cooling the controller and the brushless motor by using fed water, improving the efficiency and the life of a machine and preventing an electric shock.

Description

technical field [0001] The invention belongs to the technical field of cleaning equipment, and in particular relates to an electric shock-proof water-cooled brushless motor, a motor pump unit and high-pressure cleaning equipment. Background technique [0002] High-pressure cleaning equipment is a kind of equipment that uses water or a mixed solution added with cleaning agent as the cleaning medium, and uses high-pressure water flow to clean the surface of the object. It is mainly composed of a spray gun unit and a motor pump unit. The spray gun unit is responsible for forming different shapes according to actual needs. The motor-pump unit converts the water from the municipal tap or pool into a high-pressure stream that is delivered to the spray gun unit. [0003] The motor pump usually includes a motor and a pump, and the pump can work normally under the drive of the motor to realize pressurization and delivery of water. As an electrical device, the motor also generates a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K9/19H02K5/20
CPCH02K5/20H02K9/19
Inventor 林有余刘楷蔡济波
Owner SUMEC HARDWARE & TOOLS
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