CN206211765U

CN206211765U - The bearing radiating member of dust catcher brushless electric machine

Info

Publication number: CN206211765U
Application number: CN201621289775.6U
Authority: CN
Inventors: 尹凌飞
Original assignee: Run Hao Electric Machine Co Ltd Of Suzhou City
Current assignee: Run Hao Electric Machine Co Ltd Of Suzhou City
Priority date: 2016-11-29
Filing date: 2016-11-29
Publication date: 2017-05-31
Anticipated expiration: 2026-11-29

Abstract

The utility model discloses a kind of bearing radiating member of dust catcher brushless electric machine, including rotor, bearing on the rotor, motor stator, and the motor case on the outside of the motor stator, the upper end of motor case is provided with the first shell end cover, the center position of the first shell end cover is provided with clutch shaft bearing room, the bottom of motor case is provided with the second shell end cover, the center position of the second shell end cover is provided with second bearing room, bearing outer ring is provided with clutch shaft bearing room and second bearing room, heat conducting element and rubber ring are respectively equipped with clutch shaft bearing room and second bearing room, heat conducting element and rubber ring sleeve are on the bearing outer ring.The utility model can be used in various motor of dust collector or similar electric machine structure, have the advantages that quickly to reduce motor bearings heat, noise reduction.

Description

The bearing radiating member of dust catcher brushless electric machine

Technical field

The utility model is related to a kind of motor radiating technical field, more particularly, to a kind of bearing of dust catcher brushless electric machine Heat abstractor.

Background technology

With the improvement of living standards, dust catcher has come into huge numbers of families, and dust catcher (Dust Catcher) is using electricity Machine drives blade to rotate at a high speed, air negative pressure is produced in the housing of sealing, so as to draw dust.

Motor of dust collector is the core component in dust catcher, and conventional motor of dust collector is brush motor, and rotating speed is generally 2 Between ten thousand to 40,000 turns, although disclosure satisfy that daily use demand, but the commutator wear of brush motor is fast, short life, while It is also easy to produce big noise.

Brushless electric machine be instead of with electronic commutation it is brush-commutated in brush motor, its rotating speed up to 60,000 to 80,000 turns it Between, because rotating speed is improved, brushless electric machine bearing easily produces substantial amounts of heat, general, and bearing chamber is engineering plastics, and bearing exists Substantial amounts of heat is produced when running at high speed, bearing outer ring, because plastics thermal conductivity factor is low, causes heat easily in axle by plastic wraps Indoor aggregation is held, bearing temperature rising is ultimately resulted in, shortens the service life of motor, such as Chinese patent CN201520835915.4 A kind of integrated motor plastic end cover, including end cap body are disclosed, the end cap body is circular and center is provided with bearing Room, because bearing chamber uses engineering plastics, it is low to ultimately result in heat conductivility, is unfavorable for radiating.

Utility model content

The purpose of this utility model is the defect for overcoming prior art, there is provided a kind of bearing of brushless motor of dust collector dissipates Thermal, can be used in various motor of dust collector or similar electric machine structure, and motor bearings heat, drop are reduced with quick The advantage made an uproar.

To achieve the above object, the utility model proposes following technical scheme：A kind of bearing of dust catcher brushless electric machine dissipates Thermal, including rotor, the bearing on the rotor, motor stator, and outside the motor stator The motor case of side, the upper end of the motor case is provided with the first shell end cover, the center of first shell end cover Place is provided with clutch shaft bearing room, and the bottom of the motor case is provided with the second shell end cover, the center of second shell end cover Second bearing room is provided with position, bearing outer ring, the clutch shaft bearing room are provided with the clutch shaft bearing room and second bearing room Be respectively equipped with heat conducting element and rubber ring in second bearing room, the heat conducting element and rubber ring sleeve are located at the bearing outer ring On.

Preferably, the heat conducting element includes the projection formed on heat conducting element body, and the heat conducting element body Portion, forms groove between the lug boss and the bearing outer ring, the rubber ring is in the groove.

Preferably, it is characterised in that a rubber ring and one are respectively equipped with the clutch shaft bearing room and second bearing room Individual heat conducting element, the rubber ring is embedded in the groove and is sheathed on the bearing outer ring.

Preferably, what the rubber ring and heat conducting element were superimposed is sheathed on the bearing outer ring.

Preferably, a rubber ring and a heat conducting element are respectively equipped with the clutch shaft bearing room and second bearing room, The rubber ring is embedding to be sheathed on the bearing outer ring with what heat conducting element was superimposed.

Preferably, the rubber ring in the clutch shaft bearing room is located between heat conducting element and clutch shaft bearing chamber interior walls, described The rubber ring of second bearing room is located between heat conducting element and second bearing chamber interior walls.

The beneficial effects of the utility model are：

The utility model reduces motor bearings by setting heat conducting element, and rubber ring in bearing chamber with quick The advantage of heat, noise reduction, the heat conducting element is in contact with bearing outer ring, the heat band that bearing is produced when running at high speed Walk, and vibrations of rubber ring when can reduce bearing working, while noise is reduced, can further reduce bearing Shake the heat for producing.

Brief description of the drawings

Fig. 1 is the schematic cross-sectional view of embodiment of the present utility model；

Fig. 2 is the schematic cross-sectional view of embodiment of the present utility model two.

Reference：1st, rotor, 2, bearing, 21, bearing outer ring, 3, motor stator, 4, motor case, the 5, first machine Shell end cap, 51, clutch shaft bearing room, the 6, second shell end cover, 61, second bearing room, 7, rubber ring, 8, heat conducting element, 81, heat conduction Component body, 82, lug boss.

Specific embodiment

Below in conjunction with accompanying drawing of the present utility model, the technical scheme of the utility model embodiment is carried out clear, complete Description.

The utility model discloses a kind of bearing radiating member of dust catcher brushless electric machine, and the bearing radiating member can be Used in various motor of dust collector or similar electric machine structure.

With reference to shown in Fig. 1 and Fig. 2, a kind of bearing radiating member of dust catcher brushless electric machine, including rotor 1, it is located at Bearing 2 on the rotor 1, motor stator 3, and located at the motor case 4 in the outside of the motor stator 3, the electricity The upper end of machine casing 4 is provided with the first shell end cover 5, and the center position of first shell end cover 5 is provided with clutch shaft bearing room 51, the bottom of the motor case 4 is provided with the second shell end cover 6, and the center position of second shell end cover 6 is provided with second It is provided with bearing outer ring 21 in bearing chamber 61, the clutch shaft bearing room 51 and second bearing room 61, the clutch shaft bearing room 51 and the Heat conducting element 8 and rubber ring 7 are respectively equipped with two bearing chambers 61, the heat conducting element 8 and rubber ring 7 are sheathed on outside the bearing On circle 21.

Specifically, dust catcher brushless electric machine includes motor stator 3, rotor 1, the motor located at the outside of motor stator 3 Casing 4, and located at the shell end cover at the two ends of motor case 4, the upper end of the motor case 4 is the first shell end cover 5, electricity The bottom of machine casing 4 is the second shell end cover 6, and the center of the first shell end cover 5 is provided with clutch shaft bearing room 51, the second chassis end The center of lid 6 is provided with second bearing room 61, and the two ends of rotor 1 are provided with bearing 2, and bearing 2 is placed in the clutch shaft bearing room In 51, and in second bearing room 61, therefore, it is possible to play certain fixation to rotor 1.

General, the rotor for rotating at a high speed, the ball in its bearing 2 equally rotates at a high speed, at a high speed the ball of rotation Rubbed with bearing outer ring 21, produce amount of heat, radiated away by electric motor end cap, generally, electric motor end cap is plastic material, modeling Expect that the thermal conductivity factor of material is low, cause heat easily to be assembled in bearing chamber, it is too high to ultimately result in the temperature of bearing 2, shortens bearing 2 Life-span.

The utility model in the Room of bearing 2 by setting rubber ring 7 and heat conducting element 8, and 8 sets of rubber ring 7 and heat conducting element On bearing outer ring 21, the heat that the vibrations of bearing 2 are produced is reduced, meanwhile, the heat that bearing 2 is produced quickly is passed out Go, the heat that bearing 2 is produced during effective reduction motor operation, additionally it is possible to further noise reduction.

The setting of rubber ring 7 and heat conducting element 8 with example below disclose be preferred, but rubber ring 7 and packing ring number The specific setting such as amount and permutation and combination method is not limited to disclosed in example below.

Embodiment one

As shown in figure 1, clutch shaft bearing room 51 and second bearing room 61 are respectively equipped with a rubber ring 7 and a heat conducting element 8, certainly, rubber ring 7 and heat conducting element 8 in clutch shaft bearing room 51 and second bearing room 61 are not limited to one, can also set Multiple rubber rings 7 and heat conducting element 8, specifically, the heat conducting element 8 includes heat conducting element body 81, and heat conducting element sheet The lug boss 82 formed on body, forms a groove between the lug boss 82 and the bearing outer ring, the rubber ring 7 is sheathed on On the bearing outer ring 21 and in the groove so that rubber ring 7 and heat conducting element 8 turn into an entirety, can reduce The vibrations of bearing 2, further reduce heat, again can quickly by 2 high-speed rotation of bearing when the heat that produces rapidly transmit Go out, increase the service life of bearing 2；Because plastics thermal conductivity factor is low, therefore, heat conducting element 8 generally uses gold and silver copper-iron-aluminium A kind of or its combination therein is constituted, it is preferable that heat conducting element 8 is made of aluminium material.By this kind of bearing radiating member, To the further optimization of bearing chamber, the heat of bearing 2 is effectively reduced.

Embodiment two

As shown in Fig. 2 being respectively equipped with a rubber ring 7 and a heat conduction unit in clutch shaft bearing room 51 and second bearing room 61 Part 8, certainly, rubber ring 7 and heat conducting element 8 in clutch shaft bearing room 51 and second bearing room 61 are not limited to one, can also set Multiple rubber rings 7 and heat conducting element 8 are put, what the rubber ring 7 and heat conducting element 8 were superimposed is sheathed on the bearing outer ring 21, In clutch shaft bearing room 51 rubber ring 7 be located at heat conducting element 8 on, in second bearing room 61 rubber ring 7 be located at heat conducting element 8 it Under, because plastics thermal conductivity factor is low, therefore, heat conducting element 8 is generally therein a kind of using gold and silver copper-iron-aluminium or it combines institute's structure Into, it is preferable that heat conducting element 8 is made of aluminium material, by the heat abstractor of this kind of bearing 2, can reduce the vibrations of bearing 2, Further reduce heat, at the same heat conducting element 8 can quickly by 2 high-speed rotation of bearing when the heat that produces rapidly pass out Go, increase the service life of bearing 2.

First shell end cover 5 and the second shell end cover 6 in the utility model, can both use plastic material, it is also possible to adopt Use metal material.

The utility model reduces motor shaft by setting heat conducting element 8, and rubber ring 7 in the Room of bearing 2 with quick The advantage of 2 heats, noise reduction is held, the heat conducting element 8 is in contact with bearing outer ring 21, and bearing 2 is produced when running at high speed Heat transfer is gone out, and the rubber ring 7 can reduce bearing 2 and shake, and reduces noise, further reduces what the vibrations of bearing 2 were produced Heat.

Technology contents of the present utility model and technical characteristic are had revealed that as above, but those of ordinary skill in the art still may be used A variety of replacements and modification without departing substantially from the utility model spirit can be made based on teaching of the present utility model and announcement, therefore, this Utility model protection scope should be not limited to the content disclosed in embodiment, and should include various without departing substantially from replacement of the present utility model And modification, and covered by present patent application claim.

Claims

1. a kind of bearing radiating member of dust catcher brushless electric machine, it is characterised in that including rotor, turn located at the motor Bearing on son, motor stator, and the motor case on the outside of the motor stator, the end on the motor case sets The center position for having the first shell end cover, first shell end cover is provided with clutch shaft bearing room, the lower end of the motor case Portion is provided with the second shell end cover, and the center position of second shell end cover is provided with second bearing room, the clutch shaft bearing room With bearing outer ring is provided with second bearing room, be respectively equipped with heat conducting element and rubber in the clutch shaft bearing room and second bearing room Circle, the heat conducting element and rubber ring sleeve are on the bearing outer ring.

2. the bearing radiating member of dust catcher brushless electric machine according to claim 1, it is characterised in that the heat conducting element Lug boss including formation on heat conducting element body, and the heat conducting element body, the lug boss and the bearing outer ring Between form groove, the rubber ring is in the groove.

3. the bearing radiating member of dust catcher brushless electric machine according to claim 2, it is characterised in that the clutch shaft bearing A rubber ring and a heat conducting element are respectively equipped with room and second bearing room, the rubber ring is embedded in the groove and covers On the bearing outer ring.

4. the bearing radiating member of dust catcher brushless electric machine according to claim 1, it is characterised in that the rubber ring and What heat conducting element was superimposed is sheathed on the bearing outer ring.

5. the bearing radiating member of dust catcher brushless electric machine according to claim 4, it is characterised in that the clutch shaft bearing The set of a rubber ring and a heat conducting element, the rubber ring and heat conducting element superposition is respectively equipped with room and second bearing room On the bearing outer ring.

6. the bearing radiating member of dust catcher brushless electric machine according to claim 5, it is characterised in that the clutch shaft bearing Indoor rubber ring is located between heat conducting element and clutch shaft bearing chamber interior walls, and the rubber ring of the second bearing room is located at heat conduction unit Between part and second bearing chamber interior walls.