CN208190418U - A kind of cranse and electric motor end cap applied in bearing holder (housing, cover) - Google Patents
A kind of cranse and electric motor end cap applied in bearing holder (housing, cover) Download PDFInfo
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- CN208190418U CN208190418U CN201820808367.XU CN201820808367U CN208190418U CN 208190418 U CN208190418 U CN 208190418U CN 201820808367 U CN201820808367 U CN 201820808367U CN 208190418 U CN208190418 U CN 208190418U
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- cranse
- bearing
- housing
- cover
- open slot
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Abstract
The utility model discloses a kind of cranses and electric motor end cap applied in bearing holder (housing, cover), the bearing chamber to be embedded in bearing is formed on the inside of bearing holder (housing, cover), cranse is set in bearing chamber and is located between the lateral wall of bearing and the inner sidewall of bearing chamber, and circumferential direction uniformly offers multiple tracks open slot respectively on the inner sidewall and/or lateral wall of cranse.In its technical solution, it is line contact shape between bearing outer ring and the inner sidewall of cranse or between the lateral wall of cranse and the inner sidewall of bearing chamber, its contact surface greatly reduces compared with prior art, when the rotor of motor runs at high speed, the noise energy that vibration generates is transferred to multiple open slots on cranse by bearing and is formed by arris, and the air in multiple tracks open slot can play the role of elastic buffer, effectively play vibration and noise reducing.
Description
Technical field
The utility model relates to electric motor end cap technical field more particularly to a kind of cranses and electricity applied in bearing holder (housing, cover)
Generator terminal lid.
Background technique
The axis both ends of current nearly all rotor are all cased with bearing, such as the rotor of electric fan fan motor
The armature spindle etc. of blower in axis, dust catcher.And the purpose of bearing set is to make rotor make height on the armature spindle of motor
The frictional dissipation between axis and its supporting member is reduced when speed rotation, the bearing covered can be ball bearing, oiliness bearing etc..
This is the prior art for having continued to use many years, is widely used in various electric equipment products, it solves the mill of motor shaft really
Damage problem also reduces the noise of motor operating at the same time.
Although application comparative maturity of the motor with bearing in various electric appliances at present, with people's life and
The raising of technical level, the requirement to every quality parameter of institute's electrical appliance is higher and higher, especially ten thousand turns of those turn ups with
On motor, generated noise is not still often used person and is denounced in operation process.This ten thousand turns or more motors are used
Bearing be usually ball bearing, when rotor is in higher rotation speed operating, itself intrinsic atomic small vibration
Energy can be amplified by bearing, generate the strict noise of ear-piercing point.Especially in household electrical appliance, as dust catcher blower especially
It is prominent, become the project for carrying out research of technique in industry always.
As shown in Fig. 1, it is the structural schematic diagram of electric motor end cap in the prior art, there is a bearing on electric motor end cap
Set 10, and in forming the bearing chamber to dispose bearing in bearing holder (housing, cover), bearing holder (housing, cover) inner wall be it is smooth, the diameter of inner wall is just
It is embedded in bearing, is close-fitting between them.When the rotor of motor runs at high speed, generated noise energy is vibrated
After being transmitted to bearing holder (housing, cover) by bearing, the inducer of support shaft bearing sleeve generates resonance therewith and noise is exaggerated again, and releases
It goes, it at this time can only be in the damping of motor periphery and de-noising.
Conventional art personnel's majority is to lay sound-absorbing material in the periphery of motor to reduce noise, or improve motor
Quality, the as far as possible shaking of reduction rotor during operation.These certain corrective measures are also essential, and are also
It is very effective, however the progress of technology be it is endless, it is proposed that a new side other than above-mentioned corrective measure
Case.Specific embodiment is just illustrated by taking blower of cleaner as an example.
Utility model content
For the above-mentioned problems in the prior art, now provide it is a kind of be intended to effectively play vibration and noise reducing effect
Applied to the cranse and electric motor end cap in bearing holder (housing, cover), to overcome above-mentioned technological deficiency.
Specific technical solution is as follows:
A kind of cranse applied in bearing holder (housing, cover), bearing holder (housing, cover) inside are formed with the bearing chamber to be embedded in bearing, and cranse is set
It is placed in bearing chamber and is located between the lateral wall of bearing and the inner sidewall of bearing chamber, and the inner sidewall and/or lateral wall of cranse
Upper circumferential direction respectively uniformly offers multiple tracks open slot.
Preferably, the lower end surface of cranse also have one to inward side to the annular bottom surface of extension.
Preferably, offer the open slot of multiple tracks on the inner sidewall and lateral wall of cranse, and in the inner sidewall of cranse and
On lateral wall, a labyrinth slot type structure is respectively formed by the open slot of multiple tracks.
Preferably, offering the open slot of multiple tracks on the inner sidewall and lateral wall of cranse, and open slot is in longitudinal cloth
The straight bathtub construction set.
Preferably, the open slot of multiple tracks is offered on the lateral wall of cranse, and the inner sidewall of cranse is smooth in not slotting
Structure, and open slot is in longitudinally arranged straight bathtub construction, open slot upper and lower ends extend respectively to the upper and lower end face of cranse.
Preferably, the open slot of multiple tracks is offered on the inner sidewall of cranse, and the lateral wall of cranse is smooth in not slotting
Structure, and open slot is in longitudinally arranged straight bathtub construction, the upper end of open slot extends to cranse upper surface and lower end extends
To annular bottom surface.
Preferably, being also arranged an elastic washer on annular bottom surface.
The utility model additionally provides a kind of electric motor end cap, and electric motor end cap includes a bearing holder (housing, cover), and is formed in bearing holder (housing, cover)
To install the bearing chamber of bearing, the above-mentioned cranse being applied in bearing holder (housing, cover) is provided in bearing chamber.
Preferably, bearing holder (housing, cover) is integrally formed with cranse, and the inner sidewall of cranse offers multiple tracks open slot, open slot
It is in longitudinally arranged straight bathtub construction.
The beneficial effect of above-mentioned technical proposal is:
It is set in the bearing chamber formed on the inside of bearing holder (housing, cover) applied to the cranse in bearing holder (housing, cover), to clamp bearing and install
To bearing chamber, multiple tracks open slot is opened up respectively on the inner sidewall and/or lateral wall of cranse, so that bearing is embedded in into bearing chamber
It afterwards, is line contact shape between bearing outer ring and the inner sidewall of cranse or between the lateral wall of cranse and the inner sidewall of bearing chamber,
Its contact surface greatly reduces compared with prior art, and when the rotor of motor runs at high speed, the noise energy for vibrating generation passes through axis
It holds and is transferred to multiple open slots on cranse and is formed by arris, and the air in multiple tracks open slot can play elastic buffer work
With effectively playing the effect of vibration and noise reducing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of electric motor end cap in the prior art；
Fig. 2 is the perspective view for the cranse embodiment one that the utility model is applied in bearing holder (housing, cover)；
Fig. 3 is the perspective view for the cranse embodiment two that the utility model is applied in bearing holder (housing, cover)；
Fig. 4 is the perspective view for the cranse embodiment three that the utility model is applied in bearing holder (housing, cover)；
Fig. 5 is the perspective view for the cranse example IV that the utility model is applied in bearing holder (housing, cover)；
Fig. 6 is the perspective view of the utility model electric motor end cap.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, with
2 to 6 pairs of attached drawing of the lower embodiment combination cranse and electric motor end cap provided by the utility model applied in bearing holder (housing, cover) is made specific
It illustrates.
Embodiment one,
Referring to Fig.2, for the perspective view applied to the cranse embodiment one in bearing holder (housing, cover).As shown in the figure, the utility model
The cranse 2 of offer is applied in the bearing holder (housing, cover) of electric motor end cap, and the bearing chamber to be embedded in bearing is formed on the inside of bearing holder (housing, cover), and
Cranse 2 is set in bearing chamber and is located between the lateral wall of bearing and the inner sidewall of bearing chamber, i.e., bearing is installed by cranse 2
It is circumferential respectively on the inner sidewall and/or lateral wall of cranse 2 uniformly to offer multiple tracks open slot 3 into bearing chamber.
Based on the above-mentioned technical proposal, it is set to applied to the cranse 2 in bearing holder (housing, cover) in the bearing chamber formed on the inside of bearing holder (housing, cover),
To clamp bearing and install to bearing chamber, multiple tracks open slot 3 is opened up respectively on the inner sidewall and/or lateral wall of cranse 2, is made
After bearing is embedded in bearing chamber, between bearing outer ring and the inner sidewall of cranse 2 or the lateral wall of cranse 2 and bearing chamber it is interior
It is line contact shape between side wall, contact surface greatly reduces compared with prior art, and when the rotor of motor runs at high speed, vibration is produced
Raw noise energy is transferred to multiple open slots 3 on cranse 2 by bearing and is formed by arris, and in multiple tracks open slot 3
Air can play the role of elastic buffer, effectively play vibration and noise reducing.
In a preferred embodiment, multiple tracks open slot 3 is offered on the inner sidewall and lateral wall of cranse 2, and
In on the inner sidewall and lateral wall of cranse 2, multiple tracks open slot 3 is respectively formed a labyrinth slot type structure, so that the inside of cranse 2
Wall and lateral wall are respectively formed the structure of ripple rib, so that bearing, cranse 2 and the triangular contact of bearing chamber inner sidewall are all
Line contacts shape, to effectively play the effect of vibration and noise reducing.
Embodiment as a further preference, the lower end surface of cranse 2 also have one to inward side to the annular of extension
Bottom surface 4, to play the role of after being embedded in bearing against bearing.Further, an elasticity is also arranged on annular bottom surface 4
Washer (not shown), to further enhance the effect to bearing rotation vibration and noise reducing.
Specifically, as shown in Figure 2, on the lateral wall of cranse 2, labyrinth slot type structure is by being longitudinally arranged and extending to hoop
It encloses multiple straight troughs of 2 upper surfaces and is longitudinally arranged and extends to multiple straight trough arranged for interval of 2 lower end surface of cranse and formed, and
On the inner sidewall of cranse 2, labyrinth slot type structure is longitudinally arranged by multiple tracks and extends to the straight trough circumferential direction of annular bottom surface 4 and is evenly arranged
Formation.And the structure type of above-mentioned open slot 3 is not limited to straight trough shape, is also possible to triangle, rectangular etc., can be achieved
Above-mentioned purpose.
Embodiment two,
In conjunction with Fig. 3, for the perspective view applied to 2 embodiment two of cranse in bearing holder (housing, cover).As shown in the figure, the present embodiment mentions
The structure and content and above-described embodiment one of the cranse 2 of confession are essentially identical, the difference is that only, in the present embodiment, hoop
Multiple tracks open slot 3 is offered on the inner sidewall and lateral wall of circle 2, and open slot 3 is in longitudinally arranged straight bathtub construction.
Specifically, in the present embodiment, 3 upper and lower ends of open slot positioned at 2 lateral wall of cranse extend respectively on cranse 2
Lower end surface, and be located at the open slot 3 of 2 inner sidewall of cranse, then upper end extends to 2 upper surface of cranse and lower end extends to annular bottom surface
On 4.
Embodiment three,
In conjunction with Fig. 4, for the perspective view applied to 2 embodiment three of cranse in bearing holder (housing, cover).As shown in the figure, the present embodiment mentions
The structure and content and above-described embodiment one of the cranse 2 of confession are essentially identical, the difference is that only, in the present embodiment, only
Offer multiple tracks open slot 3 on the lateral wall of cranse 2, and the inner sidewall of cranse 2 is in the smooth structure that do not slot, and open slot 3
It is in longitudinally arranged straight bathtub construction.Specifically, in the present embodiment, 3 upper and lower ends of open slot extend respectively on cranse 2
Lower end surface.
Example IV,
In conjunction with Fig. 5, for the perspective view applied to 2 example IV of cranse in bearing holder (housing, cover).As shown in the figure, the present embodiment mentions
The structure and content and above-described embodiment one of the cranse 2 of confession are essentially identical, the difference is that only, in the present embodiment, only
Offer multiple tracks open slot 3 on the inner sidewall of cranse 2, and the lateral wall of cranse 2 is in the smooth structure that do not slot, and open slot 3
It is in longitudinally arranged straight bathtub construction.Specifically, in the present embodiment, the upper end of open slot 3 extend to 2 upper surface of cranse and
Lower end extends on annular bottom surface 4.
It is worth noting that be directed to above-described embodiment two to example IV, the upper and lower ends of open slot 3 can also be not through
It is all that can play the role of vibration and noise reducing, but penetrate to cranse 2 in at least one end of open slot 3 to 2 upper and lower end face of cranse
It behind upper and lower end face, can more easily circulate convenient for the air as conductive medium, and play more preferably effect of vibration and noise reduction.This
Outside, be mainly about the vibration attenuation mechanism of the present embodiment: it is sound wave that motor moving axis, which forwards the raw vibration wave of movable property, and vibration stops then
Sound wave stops, and the spread speed of sound wave in different media is different, generally propagates in solids most fastly, and propagates most in gas
Slowly, wherein in 15 DEG C of air, the spread speed of sound is 340m/s.In the present invention, mainly using by opening
Mouth slot forms the engraved structure between bearing contact surfaces, reduces the contact area with bearing outer ring, and then reduce the conduction of sound wave
Amount.Meanwhile the material that the bearing chamber that surrounds of bearing holder (housing, cover) uses conductivity low as far as possible is made, it, can preferably with loose material
Allow wave to reduce or disappear in conductive process, it is clear that the setting of the quantity of open slot is more, also get over can allow sound wave in air
It is conducted, so that the effect of vibration and noise reducing is more preferable.
Embodiment five,
It is the perspective view of electric motor end cap in conjunction with Fig. 6.As shown in the figure, the utility model additionally provides a kind of electric motor end cap,
Electric motor end cap includes a bearing holder (housing, cover) 1, and the bearing chamber to install bearing is formed in bearing holder (housing, cover) 1, is provided in bearing chamber as above
State cranse 2 described in any one of embodiment one to four.
In a preferred embodiment, above-mentioned bearing holder (housing, cover) 1 is integrally formed with cranse 2, and the inside of cranse 2
Wall offers multiple tracks open slot 3, and open slot 3 is in longitudinally arranged straight bathtub construction.Specifically, in the present embodiment, opening
The upper end of mouth slot 3 extends to 2 upper surface of cranse and lower end extends on annular bottom surface 4.And it is substantial, in the present embodiment, by
Be in bearing holder (housing, cover) 1 and cranse 2 it is integrated, be actually equivalent to open slot 3 be directly be provided on the inner sidewall of bearing holder (housing, cover) 1, and
The structure of annular bottom surface 4 is formed on the interior ground of bearing chamber.In addition, bearing holder (housing, cover) 1 is to be molded directly within electric motor end cap middle inside
, it is the conventional design of existing electric motor end cap, therefore omits and repeat.
In addition, the cranse and electric motor end cap in the utility model mainly are applied to carry out in the dust absorption fan of dust catcher
It uses, however, it is not limited to this, is equally applicable in other electric motor end caps and bearing holder (housing, cover) for needing damping noise reduction.
The above is only the preferred embodiment of the present invention, is merely illustrative for the utility model, and
It is unrestricted.Those skilled in the art understand that can be to it in the spirit and scope defined by the utility model claims
Many changes, modifications, and even equivalents are carried out, but all will fall within the protection scope of the utility model.
Claims (9)
1. a kind of cranse applied in bearing holder (housing, cover), bearing holder (housing, cover) inside is formed with the bearing chamber to be embedded in bearing, and feature exists
In, the cranse (2) is set in the bearing chamber and is located between the lateral wall of bearing and the inner sidewall of the bearing chamber, and
It is circumferential respectively on the inner sidewall and/or lateral wall of the cranse (2) uniformly to offer multiple tracks open slot (3).
2. as described in claim 1 applied to the cranse in bearing holder (housing, cover), which is characterized in that the lower end surface of the cranse (2) is also
With one to inward side to the annular bottom surface of extension (4).
3. as claimed in claim 2 applied to the cranse in bearing holder (housing, cover), which is characterized in that the inner sidewall of the cranse (2) and
It is offered on lateral wall open slot described in multiple tracks (3), and on the inner sidewall and lateral wall of the cranse (2), by multiple tracks
The open slot (3) is respectively formed a labyrinth slot type structure.
4. as claimed in claim 2 applied to the cranse in bearing holder (housing, cover), which is characterized in that the inner sidewall of the cranse (2) and
It is offered on lateral wall open slot described in multiple tracks (3), and the open slot (3) is in longitudinally arranged straight bathtub construction.
5. as claimed in claim 2 applied to the cranse in bearing holder (housing, cover), which is characterized in that on the lateral wall of the cranse (2)
It offers open slot described in multiple tracks (3), and the inner sidewall of the cranse (2) is in the smooth structure do not slotted, and the opening
Slot (3) is in longitudinally arranged straight bathtub construction, and open slot (3) upper and lower ends extend respectively to the upper of the cranse (2)
Lower end surface.
6. as claimed in claim 2 applied to the cranse in bearing holder (housing, cover), which is characterized in that on the inner sidewall of the cranse (2)
It offers open slot described in multiple tracks (3), and the lateral wall of the cranse (2) is in the smooth structure do not slotted, and the opening
Slot (3) is in longitudinally arranged straight bathtub construction, the upper end of the open slot (3) extend to the cranse (2) upper surface and under
End extends on the annular bottom surface (4).
7. the cranse being applied in bearing holder (housing, cover) as described in any one of claim 3 to 6, which is characterized in that the annular bottom
An elastic washer is also arranged on face (4).
8. a kind of electric motor end cap, the electric motor end cap includes a bearing holder (housing, cover) (1), and is formed in the bearing holder (housing, cover) (1) to pacify
Fill the bearing chamber of bearing, which is characterized in that be provided with as described in above-mentioned any one of claims 1 to 7 in the bearing chamber
Applied to the cranse (2) in bearing holder (housing, cover).
9. electric motor end cap as claimed in claim 8, which is characterized in that the bearing holder (housing, cover) (1) and the cranse (2) be one at
Type, and the inner sidewall of the cranse (2) offers multiple tracks open slot (3), the open slot (3) is in longitudinally arranged straight trough
Shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820808367.XU CN208190418U (en) | 2018-05-29 | 2018-05-29 | A kind of cranse and electric motor end cap applied in bearing holder (housing, cover) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820808367.XU CN208190418U (en) | 2018-05-29 | 2018-05-29 | A kind of cranse and electric motor end cap applied in bearing holder (housing, cover) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208190418U true CN208190418U (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820808367.XU Active CN208190418U (en) | 2018-05-29 | 2018-05-29 | A kind of cranse and electric motor end cap applied in bearing holder (housing, cover) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208190418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110784052A (en) * | 2019-10-08 | 2020-02-11 | 宁波富佳实业股份有限公司 | Permanent magnet brushless DC motor |
-
2018
- 2018-05-29 CN CN201820808367.XU patent/CN208190418U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110784052A (en) * | 2019-10-08 | 2020-02-11 | 宁波富佳实业股份有限公司 | Permanent magnet brushless DC motor |
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Address after: 315400 Chang'an Road 303 Yangming Street, Yuyao City, Zhejiang Province Patentee after: Ningbo Fujia Industrial Co., Ltd. Address before: 315400 Chang'an Road 303, Yuyao City, Ningbo City, Zhejiang Province Patentee before: Ningbo Fujia Industrial Co., Ltd. |