CN104539104A - Brushless direct current motor sealing structure - Google Patents
Brushless direct current motor sealing structure Download PDFInfo
- Publication number
- CN104539104A CN104539104A CN201410756646.2A CN201410756646A CN104539104A CN 104539104 A CN104539104 A CN 104539104A CN 201410756646 A CN201410756646 A CN 201410756646A CN 104539104 A CN104539104 A CN 104539104A
- Authority
- CN
- China
- Prior art keywords
- printed board
- motor
- board support
- end cover
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 13
- 238000010276 construction Methods 0.000 claims description 10
- 239000010687 lubricating oil Substances 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The invention provides a brushless direct current motor sealing structure which comprises a cover plate, a printed board assembly, a rear cover, a bearing, a printed board support, a motor end cover assembly and a motor rotor. The end of the motor rotor is arranged on the motor end cover assembly through the bearing. The cover plate is arranged at the end of the motor rotor in a sleeving mode and arranged in a mounting hole of the motor end cover assembly. The printed board support and the rear cover are sequentially arranged on the outer side of the motor end cover assembly in a sealing mode. A sealing ring A is arranged between the printed board support and the cover plate. The printed board assembly is further arranged between the printed board support and the rear cover and is fixed to the printed board support. According to the brushless direct current motor sealing structure, the printed board assembly is isolated from lubricating oil, the outside high temperature and the high temperature in a motor effectively, the lubricating oil is adopted to serve as the surrounding environment of the printed board assembly, and the brushless direct current motor with a Hall sensor can be used at a high speed at high temperature.
Description
Technical field
The present invention relates to brshless DC motor technical field, be specifically related to a kind of hermetically-sealed construction of brshless DC motor.
Background technology
Brshless DC motor is made up of motor body and driver, is a kind of typical electromechanical integrated product.Brushless electric machine refers to the motor of brushless and commutator (or collector ring), also known as commutatorless machine.As far back as 19 discipline birth motor time, the practicality motor of generation is exactly brushless form, i.e. mouse cage AC formula asynchronous motor, this motor is widely used.But asynchronous motor has many defects that cannot overcome, so that motor technology slower development.The middle of last century has been born transistor, thus adopts transistor commutating circuit to replace the DC brushless motor of brush and commutator just to arise at the historic moment.This Novel brushless motor is called electronically commutated direct current machine, which overcomes the defect of first generation brushless electric machine.Adopt the brshless DC motor of Hall element mode, due to the heatproof problem of Hall element, the occasion that temperature is higher can not be applied in.Brshless DC motor rotating speed is high, ambient temperature is high, and volume is little, and electric machine temperature rise is high, needs lubricating oil lubricate high-speed bearing and motor body and dispel the heat.Lubricating oil and high temperature can cause Hall component failure, and printed board assembly is immersed in oil can produce the problems such as distortion.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of hermetically-sealed construction of brshless DC motor, the hermetically-sealed construction of this brshless DC motor by cover plate, printed board support, bonnet formed one independently cavity printed board assembly and lubricating oil are effectively isolated, solve lubricating oil and high temperature and Hall component failure and printed board assembly can be caused to be immersed in oil can produce the problems such as distortion.
The present invention is achieved by the following technical programs.
The hermetically-sealed construction of a kind of brshless DC motor provided by the invention, comprises cover plate, printed board assembly, bonnet, bearing, printed board support, motor end cover component and rotor, and the end of described rotor is arranged on motor end cover component by bearing; Described cover plate is enclosed within the end of rotor and is installed in the installing hole of motor end cover component, described printed board support and bonnet are seal-installed on the outside of motor end cover component successively, sealing ring A is provided with between described printed board support and cover plate, also be provided with printed board assembly between described printed board support and bonnet, described printed board assembly is fixed on printed board support.
The outside of described motor end cover component is also provided with back cover.
Also heat insulating washer is provided with between described printed board assembly and printed board support.
Also sealing ring is provided with between described back cover and motor end cover component.
Beneficial effect of the present invention is: by the parts such as cover plate, printed board support, bonnet formed one independently cavity printed board assembly and lubricating oil, external high temperature and motor internal high temperature are effectively isolated, and adopt lubricating oil as the surrounding environment of printed board assembly, lubricating oil walks heat at this containment portion tape loop, makes whole printed board assembly not by the impact of external environment condition high temperature; Sealing structure, solves lubricating oil and high temperature and Hall component failure and printed board assembly can be caused to be immersed in oil can produce the problems such as distortion, enable the brushless DC motor of employing Hall element be used in the environment of high temperature and high speed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: 1-cover plate, 2-printed board assembly, 3-bonnet, 4-heat insulating washer, 5-bearing, 6-printed board support, 7-back cover, 8-motor end cover component, 9-rotor, 10-sealing ring A.
Embodiment
Further describe technical scheme of the present invention below, but described in claimed scope is not limited to.
The hermetically-sealed construction of a kind of brshless DC motor as shown in Figure 1, comprise cover plate 1, printed board assembly 2, bonnet 3, bearing 5, printed board support 6, motor end cover component 8 and rotor 9, the end of described rotor 9 is arranged on motor end cover component 8 by bearing 5; Described cover plate 1 is enclosed within the end of rotor 9 and is installed in the installing hole of motor end cover component 8, described printed board support 6 and bonnet 3 are seal-installed on the outside of motor end cover component 8 successively, sealing ring A10 is provided with between described printed board support 6 and cover plate 1, also be provided with printed board assembly 2 between described printed board support 6 and bonnet 3, described printed board assembly 2 is fixed on printed board support 6.
The outside of described motor end cover component 8 is also provided with back cover 7, is also provided with sealing ring between described back cover 7 and motor end cover component 8.If printed board assembly 2 is exposed in high temperature external environment, still have the possibility that Hall element lost efficacy.Motor end cover component 8 is offered an oilhole, and introduced by lubricating oil in cavity that motor end cover component 8 and back cover 7 formed, lubricating oil, at this cavity Inner eycle, makes whole printed board by the impact of external environment condition high temperature.
Also be provided with heat insulating washer 4 between described printed board assembly 2 and printed board support 6, prevent the high temperature of motor internal to be delivered in the cavity of printed board assembly 2.
The present invention is in practical work process, and utilize lubricating oil to carry out lubrication to bearing 5 and realize at a high speed, when motor High Rotation Speed, lubricating oil is with bearing 5 to machine cavity diffusion, and inner whole cavity is full of lubricating oil.Now, cover plate 1, printed board support 6, bonnet 3 and motor end cover component 8 are set and combine, form an enclosure space, printed board assembly 2 is enclosed in motor internal, make most of lubricating oil in the external movement of printed board assembly 2 place cavity.Be sealed in motor internal by whole for printed board assembly 2 like this, in fact realize the isolation of printed board assembly 2 and motor internal lubricating oil.
Claims (4)
1. the hermetically-sealed construction of a brshless DC motor, comprise cover plate (1), printed board assembly (2), bonnet (3), bearing (5), printed board support (6), motor end cover component (8) and rotor (9), the end of described rotor (9) is arranged on motor end cover component (8) by bearing (5), it is characterized in that: described cover plate (1) is enclosed within the end of rotor (9) and is installed in the installing hole of motor end cover component (8), described printed board support (6) and bonnet (3) are seal-installed on the outside of motor end cover component (8) successively, sealing ring A (10) is provided with between described printed board support (6) and cover plate (1), printed board assembly (2) is also provided with between described printed board support (6) and bonnet (3), described printed board assembly (2) is fixed on printed board support (6).
2. the hermetically-sealed construction of brshless DC motor as claimed in claim 1, is characterized in that: the outside of described motor end cover component (8) is also provided with back cover (7).
3. the hermetically-sealed construction of brshless DC motor as claimed in claim 1, is characterized in that: be also provided with heat insulating washer (4) between described printed board assembly (2) and printed board support (6).
4. the hermetically-sealed construction of brshless DC motor as claimed in claim 2, is characterized in that: be also provided with sealing ring between described back cover (7) and motor end cover component (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410756646.2A CN104539104A (en) | 2014-12-10 | 2014-12-10 | Brushless direct current motor sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410756646.2A CN104539104A (en) | 2014-12-10 | 2014-12-10 | Brushless direct current motor sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104539104A true CN104539104A (en) | 2015-04-22 |
Family
ID=52854592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410756646.2A Pending CN104539104A (en) | 2014-12-10 | 2014-12-10 | Brushless direct current motor sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104539104A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337441A (en) * | 2015-11-25 | 2016-02-17 | 中山百川汇盈精密实业有限公司 | Ultrathin brushless direct current motor |
| CN107733127A (en) * | 2017-11-07 | 2018-02-23 | 新乡市通用电机有限公司 | A kind of electric motor end cap |
| CN107733121A (en) * | 2017-11-07 | 2018-02-23 | 新乡市通用电机有限公司 | A kind of motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1409888A (en) * | 1999-10-08 | 2003-04-09 | 美蓓亚株式会社 | External rotor brushless DC motor |
| CN1504011A (en) * | 2001-06-22 | 2004-06-09 | 美蓓亚株式会社 | Relay support unit for electric motor, in particular for electrically commutated dc motor |
| CN103078435A (en) * | 2012-12-25 | 2013-05-01 | 湖州太平微特电机有限公司 | Ultra-thin servomotor for elevator door motor |
| CN103095084A (en) * | 2011-10-27 | 2013-05-08 | 北京精密机电控制设备研究所 | Oil-immersion type high specific power permanent magnet brushless direct current motor |
| CN103683688A (en) * | 2013-12-14 | 2014-03-26 | 湖州太平微特电机有限公司 | Door motor with built-in controller |
| CN203708058U (en) * | 2013-12-24 | 2014-07-09 | 宁波艾莫普直流电机动力有限公司 | Permanent-magnet brushless direct-current motor |
-
2014
- 2014-12-10 CN CN201410756646.2A patent/CN104539104A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1409888A (en) * | 1999-10-08 | 2003-04-09 | 美蓓亚株式会社 | External rotor brushless DC motor |
| CN1504011A (en) * | 2001-06-22 | 2004-06-09 | 美蓓亚株式会社 | Relay support unit for electric motor, in particular for electrically commutated dc motor |
| CN103095084A (en) * | 2011-10-27 | 2013-05-08 | 北京精密机电控制设备研究所 | Oil-immersion type high specific power permanent magnet brushless direct current motor |
| CN103078435A (en) * | 2012-12-25 | 2013-05-01 | 湖州太平微特电机有限公司 | Ultra-thin servomotor for elevator door motor |
| CN103683688A (en) * | 2013-12-14 | 2014-03-26 | 湖州太平微特电机有限公司 | Door motor with built-in controller |
| CN203708058U (en) * | 2013-12-24 | 2014-07-09 | 宁波艾莫普直流电机动力有限公司 | Permanent-magnet brushless direct-current motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337441A (en) * | 2015-11-25 | 2016-02-17 | 中山百川汇盈精密实业有限公司 | Ultrathin brushless direct current motor |
| CN107733127A (en) * | 2017-11-07 | 2018-02-23 | 新乡市通用电机有限公司 | A kind of electric motor end cap |
| CN107733121A (en) * | 2017-11-07 | 2018-02-23 | 新乡市通用电机有限公司 | A kind of motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |