CN208623477U - The aeration structure of brushed DC motor - Google Patents
The aeration structure of brushed DC motor Download PDFInfo
- Publication number
- CN208623477U CN208623477U CN201821343711.9U CN201821343711U CN208623477U CN 208623477 U CN208623477 U CN 208623477U CN 201821343711 U CN201821343711 U CN 201821343711U CN 208623477 U CN208623477 U CN 208623477U
- Authority
- CN
- China
- Prior art keywords
- exhaust vent
- air
- fan
- motor
- inlet hole
- 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.)
- Expired - Fee Related
Links
- 238000005273 aeration Methods 0.000 title claims abstract description 15
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000035800 maturation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model proposes a kind of aeration structures of brushed DC motor, including being set to the exhaust vent of motor case front, the air inlet hole of the fan at rotor and motor case rear portion；It drives fan rotation the air at exhaust vent is discharged when the rotor rotates, make to generate air pressure difference between exhaust vent and air inlet hole and forms radiating airflow；The utility model can form wind path directly in electric machine casing and radiate.
Description
Technical field
The utility model relates to the aeration structures of motor field, especially brushed DC motor.
Background technique
In the design process of motor, can sometimes encounter such problems: the motor product of intrinsic maturation uses
Be enclosed construction, without fan.Unexpected client's some day puts forward higher requirements: it is required that motor duty is longer or temperature rise more
It is low, and degree of protection can relax requirement.At this time what is to be done.
The benevolent see benevolence and the wise see wisdom.Different people has different ideas certainly, but generally everybody can generally use motor
Rear end adds the method for a cooling fan.Because it is also a kind of structure being most widely used that this, which is most common,.
A kind of product of maturation, enclosed motor are changed to structure of the rear end with cooling fan.This is feasible scheme, but
But can suffer a problem that --- cost.Using this structure, need to increase at least one rear cover mould and a fan housing mold,
To considerably increase the exploitation investment of early period.
Summary of the invention
The utility model proposes the aeration structure of brushed DC motor, can be formed directly in electric machine casing wind path carry out it is scattered
Heat.
The utility model uses following technical scheme.
The aeration structure of brushed DC motor, the aeration structure include the exhaust vent for being set to motor case front, are set to
The air inlet hole of fan and motor case rear portion at rotor；Drive fan rotation the air at exhaust vent when the rotor rotates
Discharge makes to generate air pressure difference between exhaust vent and air inlet hole and forms radiating airflow.
When air pressure difference formation, air inlet hole is in external air sucking motor case, and the air of sucking is with heat dissipation
Air-flow is discharged from exhaust vent.
The exhaust vent is located on the side wall of motor case front, the fan and exhaust vent at the rotor close to.
The fan be turbofan, electric fan and exhaust vent close to；When fan rotation when push air rotation and from
It is thrown away at exhaust vent.
The air inlet hole is aperture；The exhaust vent is macropore, and air inlet hole number is greater than exhaust vent.
For the utility model due to that can form heat dissipation wind path directly in motor case, input cost is lower, is easy to real
It is existing.
The utility model is due to that can efficiently use narrow in motor case using the lesser turbofan that takes up space
Small space works, and radiating airflow is formed in casing.
The utility model has certain filtration using aperture as air inlet hole, can prevent external sundries from entering machine
Shell.
Detailed description of the invention
With reference to the accompanying drawings and detailed description to the further details of explanation of the utility model:
Attached drawing 1 is the schematic diagram of the utility model；
Attached drawing 2 is another schematic diagram of the utility model；
In figure: 1- fan；2- rotor；3- exhaust vent；4- motor case；5- air inlet hole.
Specific embodiment
As shown in Figs. 1-2, the aeration structure of brushed DC motor, the aeration structure include being set to 4 front of motor case
Exhaust vent 3, the fan 1 at rotor 2 and motor case rear portion air inlet hole 5；Fan 1 is driven to revolve when rotor 2 rotates
Turn to make to generate air pressure difference between exhaust vent and air inlet hole and form radiating airflow so that the air at exhaust vent is discharged.
When air pressure difference formation, air inlet hole is in external air sucking motor case, and the air of sucking is with heat dissipation
Air-flow is discharged from exhaust vent.
The exhaust vent is located on the side wall of motor case front, the fan and exhaust vent at the rotor close to.
The fan be turbofan, electric fan and exhaust vent close to；When fan rotation when push air rotation and from
It is thrown away at exhaust vent.
The air inlet hole is aperture；The exhaust vent is macropore, and air inlet hole number is greater than exhaust vent.
Embodiment:
When motor work, rotor rotation drives the rotation of fan 1 to push the air high speed rotation of casing front, with from
Mental and physical efforts throw away the air of casing front from exhaust vent, make to generate air pressure difference between exhaust vent and air inlet hole, and air inlet hole is external
Air sucking motor case in, the air of sucking be discharged from exhaust vent with radiating airflow, formation motor case in heat dissipation
Air-flow.
Claims (5)
1. the aeration structure of brushed DC motor, it is characterised in that: the aeration structure includes going out set on motor case front
The air inlet hole of air holes, the fan at rotor and motor case rear portion；Drive fan rotation outlet air when the rotor rotates
Air discharge at hole makes to generate air pressure difference between exhaust vent and air inlet hole and forms radiating airflow.
2. the aeration structure of brushed DC motor according to claim 1, it is characterised in that: the air pressure difference is formed
When, in external air sucking motor case, the air of sucking is discharged from exhaust vent air inlet hole with radiating airflow.
3. the aeration structure of brushed DC motor according to claim 1, it is characterised in that: the exhaust vent is located at motor
On the side wall of casing front, the fan and exhaust vent at the rotor close to.
4. the aeration structure of brushed DC motor according to claim 3, it is characterised in that: the fan is turbine wind
Fan, electric fan and exhaust vent close to；When fan rotation when push air rotation and from exhaust vent from throw away.
5. the aeration structure of brushed DC motor according to claim 4, it is characterised in that: the air inlet hole is aperture；
The exhaust vent is macropore, and air inlet hole number is greater than exhaust vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821343711.9U CN208623477U (en) | 2018-08-21 | 2018-08-21 | The aeration structure of brushed DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821343711.9U CN208623477U (en) | 2018-08-21 | 2018-08-21 | The aeration structure of brushed DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208623477U true CN208623477U (en) | 2019-03-19 |
Family
ID=65715983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821343711.9U Expired - Fee Related CN208623477U (en) | 2018-08-21 | 2018-08-21 | The aeration structure of brushed DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208623477U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385296A (en) * | 2019-06-06 | 2019-10-29 | 北京安必信能源设备有限公司 | A kind of brush direct current motor photovoltaic plant cleaning brush |
-
2018
- 2018-08-21 CN CN201821343711.9U patent/CN208623477U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385296A (en) * | 2019-06-06 | 2019-10-29 | 北京安必信能源设备有限公司 | A kind of brush direct current motor photovoltaic plant cleaning brush |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190319 |