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Brushless direct-current water pump

A DC water pump and permanent magnet technology, applied in pumps, pump components, pump devices, etc., can solve the problems of reducing driving force, large magnetic gap between magnet steel and coil, and reducing coil space utilization, so as to improve driving force and reduce Magnetic gap, the effect of increasing space utilization

Inactive Publication Date: 2021-03-16
RUISHENG NEW ENERGY DEV CHANGZHOU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the coil is arranged outside the water pump casing, and the magnet is arranged inside the casing. There is a casing between the coil and the magnet. Because the casing has a thickness, it not only takes up a lot of space, but also reduces the space utilization of the coil. Causes a large magnetic gap between the magnet and the coil, reducing the driving force

Method used

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  • Brushless direct-current water pump
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  • Brushless direct-current water pump

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] refer to figure 1 - Figure 6 , the present invention discloses a brushless DC water pump, comprising a housing 10 with a cooling chamber, an impeller assembly 30, a permanent magnet 40 and a coil winding 50 all arranged in the cooling chamber, the permanent magnet 40 is fixed to the impeller assembly 30, and the coil The winding 50 is fixed to the housing 10 by gluing, the permanent magnet 40 is spaced opposite to the coil winding 50, the coil winding 50 is energized to make the permanent magnet 40 rotate, and the rotation of the permanent magnet 40 drives the impeller assembly 30 to rotate around the central axis of the coil winding 50. The present invention also arranges the coil winding 50 in the cooling cavity, removes the shell 10 between the permanent magnet 40 and the coil winding 50 in the prior art, not only increases the space utiliza...

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Abstract

The invention provides a brushless direct-current water pump. The brushless direct-current water pump comprises a shell with a cooling cavity, an impeller assembly, a permanent magnet and a coil winding, the impeller assembly, the permanent magnet and the coil winding are all arranged in the cooling cavity, the permanent magnet is fixed to the impeller assembly, the coil winding is fixed to the shell, the permanent magnet and the coil winding are oppositely arranged at intervals, the coil winding is powered on to enable the permanent magnet to rotate, and the permanent magnet rotates to drivethe impeller assembly to rotate around the center axis of the coil winding. The permanent magnet and the coil winding are both arranged in the cooling cavity, the shell between the permanent magnet and the coil winding in the prior art is removed, the space utilization rate of the coil is increased, the magnetic gap between the permanent magnet and the coil winding is reduced, and the driving force is improved.

Description

【Technical field】 [0001] The present invention relates to the technical field of water pumps, and more specifically, to a brushless DC water pump. 【Background technique】 [0002] The micro brushless DC water pump includes the impeller and the motor assembly that drives the impeller to rotate. The motor assembly is driven by a coil and a magnetic steel. Using the electromagnetic principle, the coil is energized to generate an alternating magnetic field, which interacts with the magnetic steel to make the impeller rotate, thereby driving fluid circulation. . [0003] In the prior art, the coil is arranged outside the water pump casing, and the magnet is arranged inside the casing. There is a casing between the coil and the magnet. Because the casing has a thickness, it not only takes up a lot of space, but also reduces the space utilization of the coil. This results in a larger magnetic gap between the magnet and the coil, reducing the driving force. 【Content of invention】 ...

Claims

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Application Information

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IPC IPC(8): F04D13/06F04D29/22F04D29/58F04D29/42F04D29/08H02K21/22
CPCF04D13/0693F04D29/2222F04D29/5806F04D29/586F04D29/426F04D29/086H02K21/22
Inventor 许德涛张奇凌芳华杨森森
Owner RUISHENG NEW ENERGY DEV CHANGZHOU
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