CN212277998U - Brushless DC motor rotor for water heater fan - Google Patents

Abstract

The utility model relates to a brushless DC motor rotor that water heater fan was used, including the rotor pivot, the outside parcel of rotor pivot has the magnetizer, and the magnetizer passes through the magnetic and mixes and the integrated into one piece that moulds plastics with the viscose, and evenly distributed has a plurality of to separate the magnetic bridge in the magnetizer, because the magnetizer mixes and the integrated into one piece that moulds plastics through magnetic and viscose, and the rethread separates the magnetic bridge and divide into a plurality of utmost point group to the magnetizer, and the product need not to set up the iron core again, has reduced production processes, has improved production efficiency and reduce cost.

Description

Brushless DC motor rotor for water heater fan

Technical Field

The utility model relates to a gas heater's technical field specifically is a brushless DC motor rotor that water heater fan was used.

Background

Brushless direct current motor is widely used on the water heater fan, and the brushless direct current motor rotor (as shown in fig. 1) that current water heater fan used still is equipped with iron core 5 between rotor 5 and magnetic conduction piece 2a including rotor pivot 1a, magnetic conduction piece 2a, and the manufacturing process needs to fix iron core 5 and rotor pivot 1a, the hookup location between the magnetic conduction piece, and the process is more, and production efficiency is not high enough.

Therefore, further improvements are needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of above-mentioned prior art existence, and provide a brushless DC motor rotor that water heater fan was used, aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least.

The purpose of the utility model is realized like this:

the utility model provides a brushless DC motor rotor that water heater fan was used, includes the rotor pivot, and the outside parcel of rotor pivot has the magnetizer, and the magnetizer passes through magnetic and viscose and mixes and injection moulding integrated into one piece, and evenly distributed has a plurality of to separate the magnetic bridge in the magnetizer.

One end of the magnetism isolating bridge, which is close to the outer side wall of the magnetizer, is provided with a magnetism leakage prevention part, the magnetism leakage prevention part is in a V shape, and the width of the magnetism leakage prevention part is smaller than that of the magnetism isolating bridge main body.

Be equipped with the fixed strip in the magnetic leakage prevention portion, connect through the fixed strip between the adjacent magnetic leakage prevention portion.

The fixing strip is made of metal and is made of non-magnetic materials.

And a plurality of glue grooves are arranged between the rotor rotating shaft and the magnetizer, and glue layers are arranged in the glue grooves.

The utility model has the advantages that:

because the magnetizer is through magnetic and viscose mixture and injection moulding integrated into one piece, and rethread separates the magnetic bridge and divide into a plurality of utmost point group to the magnetizer, and the product need not to set up the iron core again, has reduced production processes, has improved production efficiency and reduce cost.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

Fig. 1 is a cross-sectional view of a prior art brushless dc motor rotor.

Fig. 2 is a first schematic cross-sectional view of an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of the embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 2, fig. 3, this brushless direct current motor rotor that water heater fan was used, including rotor shaft 1, rotor shaft 1's outside parcel has magnetizer 2, magnetizer 2 mixes and moulds plastics integrated into one piece through magnetic and viscose, evenly distributed has a plurality of to separate magnetic bridge 3 in the magnetizer 2, because magnetizer 2 mixes and moulds plastics integrated into one piece through magnetic and viscose, rethread separates magnetic bridge 3 and divide into a plurality of utmost point group to magnetizer 2, the product need not to set up the iron core again, production processes has been reduced, production efficiency and reduce cost have been improved.

Further, the one end that separates magnetism bridge 3 and be close to 2 lateral walls of magnetizer is equipped with leakage prevention portion 31, and leakage prevention portion 31 is the V-arrangement, and its width is less than the width of separating magnetism bridge 3 main parts, because the width of leakage prevention portion 31 is less, is difficult to make and takes place the magnetic leakage phenomenon between the adjacent magnetizer 2.

Further, the magnetic leakage prevention parts 31 are provided with the fixing strips 4, and the adjacent magnetic leakage prevention parts 31 are connected through the fixing strips 4, so that the overall structural strength of the product is improved.

Furthermore, the fixing strip 4 is made of metal and non-magnetic materials, the fixing strip 4 in the embodiment can be made of copper materials, and has better mechanical strength compared with non-metal materials, and eddy current generation and energy consumption increase can also be avoided.

Furthermore, a plurality of glue grooves 11 are arranged between the rotor rotating shaft 1 and the magnetizer 2, glue layers (not shown in the figure) are arranged in the glue grooves 11, and the glue layers can play a role in fixing the rotor rotating shaft 1 and the magnetizer 2 and also play a role in buffering when the product is told to rotate.

The above embodiments are merely preferred embodiments of the present invention, and other embodiments are also possible. Equivalent modifications or substitutions may be made by those skilled in the art without departing from the spirit of the invention, and such equivalent modifications or substitutions are intended to be included within the scope of the claims set forth herein.

Claims (5)

1. The utility model provides a brushless DC motor rotor that water heater fan was used, includes rotor shaft (1), its characterized in that, the outside parcel of rotor shaft (1) has magnetizer (2), evenly distributed has a plurality of magnetism bridge (3) that separate in magnetizer (2), magnetizer (2) are through the integrated into one piece that moulds plastics.

2. The brushless dc motor rotor for a water heater blower as claimed in claim 1, wherein: separate magnetic bridge (3) and be close to the one end of magnetizer (2) lateral wall and be equipped with anti-magnetic leakage portion (31), anti-magnetic leakage portion (31) are the V-arrangement, and its width is less than the width of separating magnetic bridge (3) main part.

3. The brushless dc motor rotor for a water heater blower as claimed in claim 2, wherein: be equipped with fixed strip (4) on magnetic leakage prevention portion (31), connect through fixed strip (4) between adjacent magnetic leakage prevention portion (31).

4. The brushless dc motor rotor for a water heater blower as claimed in claim 3, wherein: the fixing strip (4) is made of metal and non-magnetic material.

5. The rotor of a brushless dc motor for a water heater blower according to any one of claims 1 to 4, wherein: a plurality of glue grooves are arranged between the rotor rotating shaft (1) and the magnetizer (2), and glue layers are arranged in the glue grooves (11).

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