CN220822789U - Self-radiating structure of brushless motor - Google Patents
Self-radiating structure of brushless motor Download PDFInfo
- Publication number
- CN220822789U CN220822789U CN202322606562.8U CN202322606562U CN220822789U CN 220822789 U CN220822789 U CN 220822789U CN 202322606562 U CN202322606562 U CN 202322606562U CN 220822789 U CN220822789 U CN 220822789U
- Authority
- CN
- China
- Prior art keywords
- brushless motor
- air outlet
- heat dissipation
- rear cover
- self
- 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.)
- Active
Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 32
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 15
- 230000002269 spontaneous effect Effects 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The application relates to a self-heat-dissipation structure of a brushless motor, which is applied to the technical field of brushless motors and comprises an air inlet arranged on an end cover of the brushless motor and an air outlet arranged on a shell of the brushless motor, wherein a first cavity is arranged in the fan housing of the brushless motor, and a second cavity is arranged in the shell of the brushless motor; the wind path is: the air passes through the air inlet, the movable impeller of the brushless motor, the first cavity, the fixed impeller of the brushless motor, the second cavity and the air outlet in sequence; setting a wind path as a heat dissipation channel; after wind blows out from the air outlet, heat generated by PCBA components in the brushless motor and conducted to the machine shell and the rear cover can be taken away. Compared with the spontaneous static heat dissipation mode in the prior art, the forced air cooling heat dissipation mode adopted by the application has higher heat dissipation efficiency and better heat dissipation effect, can reduce the risk of short circuit burnout of PCBA components, ensures the work of the brushless motor, and prolongs the service life of the brushless motor.
Description
Technical Field
The application relates to the technical field of brushless motors, in particular to a self-heat-dissipation structure of a brushless motor.
Background
The floor washing machine can be frequently seen in scenes such as fire/bus stops, airports, schools and office buildings, the floor washing machine is a cleaning machine for cleaning the ground and sucking sewage at the same time, a motor used in the floor washing machine is a brushless motor, the brushless motor is an electromechanical integrated product composed of a motor main body and a driver, and compared with a traditional brush motor, the brushless motor has longer service life, less power consumption and more quiet and reliable operation.
As a motor, the brushless motor can continuously generate heat in the operation process, the main source of heat of the brushless motor is PCBA components in the brushless motor, if heat cannot be timely dissipated, the temperature of the PCBA components can be continuously increased, the risk of short circuit burnout exists, the work of the brushless motor is affected, and the service life of the brushless motor is reduced.
Traditional heat dissipation mode to brushless motor adopts realizes the spontaneous static heat dissipation to PCBA components and parts through utilizing the shell structure of brushless motor and the heat dissipation plate structure etc. in the casing, can consult two current chinese patents: brushless motor assembly for automobile radiator fan (bulletin number CN 210780484U) and a control unit for EPS and brushless motor integrated structure (bulletin number CN 214850838U).
The heat dissipation mode adopted by the method can conduct heat generated by the PCBA components, but the heat dissipation effect and the heat dissipation efficiency are not ideal, once the temperature of the PCBA components rises to the limit, the risk of short circuit burnout exists, so that the work of the brushless motor is affected, and the service life of the brushless motor is reduced.
Disclosure of utility model
In order to solve the above-mentioned problems in the prior art, the present application provides a self-heat dissipation structure of a brushless motor.
The application provides a self-radiating structure of a brushless motor, which adopts the following technical scheme:
The self-heat-dissipation structure of the brushless motor comprises an air inlet arranged on an end cover of the brushless motor and an air outlet arranged on a shell of the brushless motor, wherein a first cavity is formed in a fan housing of the brushless motor, and a second cavity is formed in the shell of the brushless motor;
The wind path is: the air passes through the air inlet, the movable impeller of the brushless motor, the first cavity, the fixed impeller of the brushless motor, the second cavity and the air outlet in sequence; setting a wind path as a heat dissipation channel;
After wind blows out from the air outlet, heat generated by PCBA components in the brushless motor and conducted to the machine shell and the rear cover can be taken away.
Through adopting above-mentioned technical scheme, movable vane wheel rotation is followed the air intake and is inhaled heat dissipation channel, later in the first chamber in the fan housing is got into to the wind, through deciding the impeller again, decide the impeller and provide good even wind channel for the wind according to its form structure, later in the fan gets into the second chamber in the casing, blow out from the air outlet at last, can take away the heat that PCBA components and parts produced in the brushless motor and conducted to casing and back lid, this kind of forced air cooling's that adopts heat dissipation mode compares in the spontaneous static heat dissipation mode of prior art, the radiating efficiency is higher, the radiating effect is better, can reduce the risk that PCBA components and parts short circuit burns out, brushless motor's work has been ensured, brushless motor's life has been prolonged.
Optionally, the edge of the rear cover extends out of the casing.
By adopting the technical scheme, if the edge of the rear cover does not extend out of the shell, wind cannot be blown onto the rear cover, so that the designed edge of the rear cover extends out of the shell, and the wind blown out of the air outlet can be blown onto the edge of the rear cover, so that heat on the rear cover is taken away.
Optionally, the edge of the rear cover is set to be a U-shaped structure, and an opening of the U-shaped structure is disposed opposite to the air outlet.
Through adopting above-mentioned technical scheme, can reduce the distance between back lid and the air outlet like this, can make the wind that blows out from the air outlet blow to back lid more fast, can also keep off the bottom surface department that exists back lid U type structure with wind resistance to dispel the heat to back lid continuously, and then improved the radiating effect.
Optionally, the air outlet is disposed near the rear cover.
Through adopting above-mentioned technical scheme, can further reduce the distance between back lid and the air outlet like this, improve the radiating effect.
Optionally, the air outlet is obliquely arranged towards the direction of the rear cover.
Through adopting above-mentioned technical scheme, the air outlet sets up to the direction slope of back lid, provides a route of blowing after leaving the air outlet for wind, and this route can guide the wind to blow along the angle of air outlet slope and send to the back lid to both can improve the radiating effect to back lid and casing, can make wind can not diverge again at the in-process of blowing, improved the utilization ratio of wind.
Optionally, the air outlet is arranged on the casing in a concave structure.
Through adopting above-mentioned technical scheme, can make like this wind blow out from the air outlet in advance, guide the wind in advance to blow back lid and casing, can make wind and back lid and casing contact better, improve the radiating effect.
Optionally, the casing is made of an aluminum alloy material; the rear cover is made of an aluminum alloy material.
Through adopting above-mentioned technical scheme, utilize the good heat conductivity of aluminum alloy material, can make the heat that PCBA components and parts produced better conduct casing and back lid to utilize casing and back lid good spontaneous heat dispersion, improve the radiating effect.
In summary, the application has the following beneficial technical effects:
1. The impeller rotates to suck wind into the heat dissipation channel from the air inlet, then the wind enters the first cavity in the fan housing, then the wind passes through the fixed impeller, the fixed impeller provides a good and uniform air channel for the wind according to the shape structure of the fixed impeller, then the wind enters the second cavity in the shell, and finally the wind is blown out from the air outlet, so that heat generated by PCBA components in the brushless motor and conducted to the shell and the rear cover can be taken away.
2. The edge of the rear cover extends out of the shell and is arranged into a U-shaped structure, and the opening of the U-shaped structure is arranged back to the air outlet, so that the distance between the rear cover and the air outlet can be reduced, and the air blown out from the air outlet is blown to the edge of the rear cover, so that heat on the rear cover is taken away.
Drawings
Fig. 1 is a schematic diagram of a self-heat dissipation structure of a brushless motor according to an embodiment of the application.
Reference numerals: 1. an end cap; 11. an air inlet; 2. a moving impeller; 3. a fan housing; 31. a first chamber; 4. an impeller is fixed; 5. a housing; 51. a second chamber; 52. an air outlet; 6. PCBA components; 7. and a rear cover.
Detailed Description
The present application will be described in further detail with reference to fig. 1.
The embodiment of the application discloses a self-radiating structure of a brushless motor, wherein heat is mainly sourced from PCBA components 6, and the radiating principle is as follows: wind blows to the rear cover 7 and the machine shell 5 through a heat dissipation channel inside the brushless motor, and the heat generated by the PCBA component 6 and conducted to the machine shell 5 and the rear cover 7 is taken away by utilizing the good spontaneous heat dissipation performance of the machine shell 5 and the rear cover 7 made of aluminum alloy materials, so that the heat dissipation effect is improved, and the self-heat dissipation function of the whole brushless motor is realized.
In the heat dissipation channel, the path of wind is: the air inlet 11 on the end cover 1, the movable impeller 2 of the brushless motor, the first cavity 31 in the fan housing 3, the fixed impeller 4 of the brushless motor, the second cavity 51 in the machine shell 5 and the air outlet 52 on the machine shell 5.
The air outlet 52 is provided in a recessed structure on the casing 5 and is inclined toward the rear cover 7. The air outlet 52 with the concave structure can enable air to be blown out from the air outlet 52 in advance, and the air is guided to blow to the rear cover 7 and the machine shell 5 in advance, so that the air can be better contacted with the rear cover 7 and the machine shell 5, and the heat dissipation effect is improved; and, the air outlet 52 is inclined towards the rear cover 7, so that a blowing path which leaves the air outlet 52 can be provided for the air, and the air can be guided to be blown onto the rear cover 7 and the machine shell 5 along the inclined angle of the air outlet 52, thereby not only improving the heat dissipation effect on the rear cover 7 and the machine shell 5, but also preventing the air from being dispersed everywhere in the blowing process, and improving the utilization rate of the air. In addition, the air outlet 52 is also designed to be close to the rear cover 7, so that the distance between the rear cover 7 and the air outlet 52 can be reduced, and the heat dissipation effect is improved.
Outside the heat dissipation channel, the wind path is: and is blown obliquely onto the casing 5 and the rear cover 7 after leaving the air outlet 52.
If the edge of the rear cover 7 does not extend out of the casing 5, wind cannot be blown onto the rear cover 7, forced air cooling heat dissipation of the rear cover 7 cannot be implemented, so that the edge of the rear cover 7 is designed to extend out of the casing 5, and wind blown out from the air outlet 52 can be blown to the edge of the rear cover 7, thereby taking away heat on the rear cover 7. It should be noted that, the edge of the rear cover 7 is set to be a U-shaped structure, and the opening of the U-shaped structure is set back to the air outlet 52, so that the distance between the rear cover 7 and the air outlet 52 can be further reduced, the air blown out from the air outlet 52 can be blown onto the rear cover 7 and the casing 5 more quickly, and the air resistance can be kept at the bottom surface of the U-shaped structure of the rear cover 7, so that the heat dissipation effect of the rear cover 7 is continuously improved.
The implementation principle of the self-radiating structure of the brushless motor provided by the embodiment of the application is as follows: the impeller 2 rotates to suck wind into the heat dissipation channel from the air inlet 11, then the wind enters the first cavity 31 in the fan housing 3, then passes through the fixed impeller 4, the fixed impeller 4 provides a good uniform air channel for the wind according to the shape structure of the fixed impeller, then the wind enters the second cavity 51 in the shell 5 and finally is blown out from the air outlet 52, the heat generated by the PCBA component 6 in the brushless motor and conducted to the shell 5 and the rear cover 7 can be taken away, and compared with the self-static heat dissipation mode in the prior art, the forced air cooling heat dissipation mode adopted by the method has higher heat dissipation efficiency and better heat dissipation effect, can reduce the risk of short circuit burnout of the PCBA component 6, ensures the work of the brushless motor, and prolongs the service life of the brushless motor.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (7)
1. The self-heat-dissipation structure of the brushless motor is characterized by comprising an air inlet (11) arranged on an end cover (1) of the brushless motor and an air outlet (52) arranged on a shell (5) of the brushless motor, wherein a first cavity (31) is formed in a fan housing (3) of the brushless motor, and a second cavity (51) is formed in the shell (5) of the brushless motor;
The wind path is: the air passes through the air inlet (11), the movable impeller (2) of the brushless motor, the first cavity (31), the fixed impeller (4) of the brushless motor, the second cavity (51) and the air outlet (52) in sequence; setting a wind path as a heat dissipation channel;
After the wind blows out from the air outlet (52), heat generated by PCBA components (6) in the brushless motor and conducted to the machine shell (5) and the rear cover (7) can be taken away.
2. A self-cooling structure of a brushless motor according to claim 1, characterized in that the rim of the back cover (7) extends out of the housing (5).
3. A self-cooling structure of a brushless motor according to claim 2, characterized in that the rim of the back cover (7) is arranged in a U-shaped structure, the opening of the U-shaped structure being arranged facing away from the air outlet (52).
4. A self-radiating structure of a brushless motor according to claim 1, characterized in that the air outlet (52) is provided close to the rear cover (7).
5. A self-heat radiation structure of a brushless motor according to claim 1, wherein the air outlet (52) is inclined toward the rear cover (7).
6. A self-heat dissipation structure of a brushless motor according to claim 1, characterized in that the air outlet (52) is provided in a recessed structure on the housing (5).
7. A self-heat-dissipating structure of a brushless motor according to claim 1, wherein said housing (5) is a housing made of an aluminum alloy material; the rear cover (7) is made of an aluminum alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322606562.8U CN220822789U (en) | 2023-09-25 | 2023-09-25 | Self-radiating structure of brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322606562.8U CN220822789U (en) | 2023-09-25 | 2023-09-25 | Self-radiating structure of brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220822789U true CN220822789U (en) | 2024-04-19 |
Family
ID=90713429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322606562.8U Active CN220822789U (en) | 2023-09-25 | 2023-09-25 | Self-radiating structure of brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220822789U (en) |
-
2023
- 2023-09-25 CN CN202322606562.8U patent/CN220822789U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207968158U (en) | A kind of motor with uniformly distributed ventilated type protective roof structure | |
| CN210958048U (en) | Brushless motor's radiator unit | |
| CN216356263U (en) | Quick heat dissipation type motor based on air current accuse temperature dehumidification | |
| CN110635606A (en) | Motor with heat dissipation function | |
| CN105305732A (en) | Integrated motor of energy-saving industrial sewing machine | |
| CN109639030A (en) | A kind of high-speed motor and the hair dryer including it | |
| CN220822789U (en) | Self-radiating structure of brushless motor | |
| CN107947470B (en) | Air-cooled integrated motor | |
| CN210074961U (en) | Heat dissipation base of permanent magnet generator | |
| CN210865983U (en) | External plug-in type intelligent switch heat dissipation structure | |
| CN206922590U (en) | A kind of energy-saving electric machine | |
| CN220771379U (en) | Warm-air drier fixed at bottom of desk | |
| JP2000146301A (en) | Warm-air unit | |
| CN200953244Y (en) | Harddisk holding box with radiator | |
| CN207117378U (en) | Motor | |
| CN206221363U (en) | A kind of motor blower fan | |
| CN207896806U (en) | A kind of air-cooled integrated motor | |
| CN215819226U (en) | Supercharging device of heat dissipation system, heat dissipation system and electric appliance | |
| CN219809155U (en) | High-efficiency energy-saving type radiator fan supercharging structure | |
| CN214014062U (en) | Heat radiation structure suitable for automobile-used high-power integrative motor | |
| CN218829495U (en) | Electric hair drier motor with strip-shaped heat dissipation structure | |
| CN220273462U (en) | Integral structure of DC brushless motor | |
| CN213783070U (en) | Rotating electrical machine convenient to cooling | |
| CN215870952U (en) | Rotor assembly and rotor structure | |
| CN219220831U (en) | Fan blade assembly and heat dissipation fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |