CN113598645A - Motor and dust catcher with high-efficient cooling air duct - Google Patents
Motor and dust catcher with high-efficient cooling air duct Download PDFInfo
- Publication number
- CN113598645A CN113598645A CN202110995130.3A CN202110995130A CN113598645A CN 113598645 A CN113598645 A CN 113598645A CN 202110995130 A CN202110995130 A CN 202110995130A CN 113598645 A CN113598645 A CN 113598645A
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- China
- Prior art keywords
- motor
- cavity
- bracket
- impeller
- air port
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Links
- 238000001816 cooling Methods 0.000 title claims abstract description 19
- 239000000428 dust Substances 0.000 title abstract description 13
- 238000007789 sealing Methods 0.000 claims description 24
- 230000035939 shock Effects 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 17
- 230000000694 effects Effects 0.000 description 9
- 238000005457 optimization Methods 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/22—Mountings for motor fan assemblies
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2889—Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a motor with a high-efficiency cooling air duct and a dust collector, wherein a lower motor cover and an upper motor cover are assembled to form a cavity inside, a first air port and a first side air port which are communicated with the cavity are arranged on the lower motor cover, a second air port and a second side air port which are communicated with the cavity are arranged on the upper motor cover, an inner support is arranged in the cavity and divides the cavity into an inner cavity and an outer cavity which are not communicated with each other, a rotor component comprises a rotating shaft, an inner impeller and an outer impeller, the inner impeller is positioned in the inner cavity and guides air entering from the second air port into the inner cavity and then out from the second side air port, and the outer impeller is positioned in the outer cavity and guides the air entering from the first air port into the outer cavity and then out from the first side air port. The motor cavity is effectively separated between the inner impeller and the outer impeller, and the inner impeller and the outer impeller are respectively communicated to form flowing air for heat dissipation, so that the heat dissipation efficiency is high, and the inner impeller and the outer impeller are uniformly driven by the rotating shaft and synchronously rotate, and the motor is simple in structure and good in stability.
Description
Technical Field
The invention relates to the technical field of dust collectors, in particular to a motor with a high-efficiency cooling air duct and a dust collector.
Background
The motor of the dust collector is the heart of the dust collector, so that the motor has higher performance requirement and ensures the service life of the motor. The conventional motor has a single air duct, and the main function of the conventional motor is to form negative pressure in the motor and then realize the function of generating wind power by the motor through the air flow generated by the negative pressure passing through the motor. The air duct in a general motor has limited heat dissipation effect on the motor, and poor heat dissipation effect on a rotor assembly and a stator assembly of the motor; if a plurality of air channels are arranged for heat dissipation, if the air channels are crossed to form series connection, the conveying distance of air can be increased, and therefore the heat dissipation efficiency can be influenced by the conducted air channels.
Disclosure of Invention
The invention aims to provide a motor with a high-efficiency cooling air duct and a dust collector, wherein a motor cavity is effectively separated by an inner bracket and an outer bracket, and flowing air is respectively formed by an inner impeller and an outer impeller which are arranged in an inner cavity and an outer cavity to dissipate heat, so that the heat dissipation efficiency is high, and the inner impeller and the outer impeller are uniformly driven by a rotating shaft to synchronously rotate, and the dust collector has a simple structure and good stability.
In order to achieve the purpose, the invention adopts the technical scheme that: the motor with the high-efficiency cooling air duct comprises a motor lower cover, a motor upper cover, an inner bracket, a stator component and a rotor component, the lower motor cover and the upper motor cover are assembled to form a cavity, the lower motor cover is provided with a first air port and a first side air port which are communicated with the cavity, the upper cover of the motor is provided with a second air port and a second side air port which are communicated with the cavity, the inner support is arranged in the cavity, the inner bracket divides the cavity into an inner cavity and an outer cavity which are not communicated with each other, the stator assembly and the rotor assembly are both arranged on the inner bracket, the rotor component comprises a rotating shaft, an inner impeller and an outer impeller which are arranged on the rotating shaft, the inner impeller is positioned in the inner cavity, the inner impeller introduces the air entering from the second air port into the inner cavity and then leads out from the second side air port, the outer impeller is positioned in the outer cavity, and the outer impeller introduces the air entering from the first air port into the outer cavity and then leads out from the first side air port.
As a further optimization, the inner support comprises a bottom support and an upper support formed at the upper end of the bottom support, the bottom support is abutted against the upper motor cover, and the upper support extends upwards into the upper part of the upper motor cover; the stator assembly and the rotor assembly are mounted on the bottom bracket.
As a further optimization, an inner cavity sealing ring is arranged between the bottom bracket and the upper cover of the motor; the bottom support is abutted to the corner of the upper motor cover, and the inner cavity sealing ring is bent and arranged at the corner of the upper motor cover.
As a further optimization, the motor further comprises an outer support, the outer support is arranged at the lower part of the outer cavity and is positioned at the opposite outer side of the inner support, the upper end of the outer support is not abutted against the inner support, the outer cavity is divided into an inner-layer outer cavity and an outer-layer outer cavity which are communicated by the outer support, and the outer impeller introduces air entering from the first air port into the inner-layer outer cavity, then enters the outer-layer outer cavity and is led out through the first side air port.
As a further optimization, the radius of the circular section of the inner outer cavity is smaller than that of the outer cavity.
As further optimization, the outer support is arranged on the lower cover of the motor, and a shock pad is arranged between the outer support and the lower cover of the motor.
As a further optimization, the lower end of the upper motor cover is provided with a slot, and the upper end of the lower motor cover extends into the slot to seal the outer cavity.
As a further optimization, an outer cavity sealing ring is installed in the slot, and the upper end of the lower motor cover abuts against the outer cavity sealing ring.
The invention also provides a dust collector, wherein a motor with a high-efficiency cooling air duct is arranged in the dust collector.
As a further optimization, the lower end of the lower motor cover is provided with a sealing groove, and a body sealing gasket is arranged in the sealing groove.
Compared with the prior art, the invention has the following beneficial effects:
1. the motor cavity is divided into an inner cavity and an outer cavity by the inner support, the inner impeller and the outer impeller are respectively arranged in the inner cavity and the outer cavity, cold air with heat dissipation air inlet is guided into the inner cavity by the rotation of the inner impeller and the outer impeller, hot air forms heat dissipation air outlet to be discharged after the inner cavity dissipates heat, the cold air with the air inlet of the motor is guided into the outer cavity, the hot air forms motor air outlet to be discharged after the outer cavity dissipates heat, the action space of the cold air is improved, and the heat dissipation efficiency of the whole motor is improved;
2. the arrangement of the outer support can prolong the stroke of the motor inlet air entering the first air port in the outer cavity, increase the contact time and the contact area between the cold air of the motor inlet air and the inner support, improve the heat conduction efficiency and improve the heat dissipation effect.
Drawings
Fig. 1 is a structural view of a motor of the present invention.
Fig. 2 is a sectional view of the motor of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is a side view of the motor of the present invention.
Fig. 5 is a schematic view of the air flow inside the motor of the present invention.
Fig. 6 is a schematic structural view of the vacuum cleaner of the present invention.
Fig. 7 is an enlarged view at B in fig. 6.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 5, the motor with a high-efficiency cooling air duct comprises a motor lower cover 1, a motor upper cover 2, an inner support 4, a stator assembly 51 and a rotor assembly, wherein a cavity is formed inside the motor lower cover 1 and the motor upper cover 2 after the motor lower cover 1 and the motor upper cover 2 are assembled, a clamping head 71 is arranged on the motor lower cover, a clamping buckle 72 is arranged on the motor upper cover, the clamping buckle is clamped in the clamping head to mount the motor upper cover on the motor lower cover, a first air port 11 and a first side air port 12 which are both communicated with the cavity are arranged on the motor lower cover 1, a second air port 21 and a second side air port 22 which are both communicated with the cavity are arranged on the motor upper cover 2, the inner support 4 is arranged in the cavity, the cavity is divided into an inner cavity 101 and an outer cavity 102 by the inner support 4, the stator assembly 51 and the rotor assembly are both mounted on the inner support 4, the rotor assembly comprises a rotating shaft 520, and an inner impeller 522 and an outer impeller 521 which are mounted on the rotating shaft 520, the inner impeller 522 is positioned in the inner cavity 101, the inner impeller 522 guides the air entering from the second air inlet 22 into the inner cavity 101 and then is guided out from the second side air inlet 22, the outer impeller 521 is positioned in the outer cavity 102, and the outer impeller 521 guides the air entering from the first air inlet 11 into the outer cavity 102 and then is guided out from the first side air inlet 12.
In the invention, the wind power required by the dust collector during working is generated by the rotation of the outer impeller driven by the rotating shaft in the rotor component, negative pressure is generated around the rotation of the outer impeller, air enters the outer cavity in the motor from the outside of the motor through the first air opening and is then discharged from the first side air opening, and the wind power for the dust collector during working is provided. Because the air entering from the first air port is cold air, after entering the outer cavity, the air can exchange heat with the outer cavity, the rotor assembly, the stator assembly and the like through the contact with the inner support, thereby achieving the effect of cooling; because the inner impeller fixed on the rotating shaft is arranged in the inner cavity, when the rotating shaft rotates, the inner impeller rotates and generates negative pressure around the inner impeller, cold air on the upper part of the upper cover of the motor can be guided into the inner cavity through the second air opening, the temperature of the rotor assembly and the stator assembly is reduced, then the cold air is guided out through the second side air opening, and the hot air is discharged out of the motor.
According to the invention, the motor cavity is divided into the inner cavity and the outer cavity, the inner impeller and the outer impeller are respectively arranged in the inner cavity and the outer cavity, cold air with heat dissipation air inlet is guided into the inner cavity through the rotation of the inner impeller and the outer impeller, hot air forms heat dissipation air outlet to be discharged after the inner cavity is cooled, meanwhile, the cold air with motor air inlet is guided into the outer cavity, hot air forms motor air outlet to be discharged after the outer cavity is cooled, the action space of the cold air is improved, and the integral heat dissipation efficiency of the motor is improved.
The inner impeller and the outer impeller are driven to synchronously rotate by the rotating shaft of the rotor assembly, namely the inner impeller and the outer impeller are driven to move by one power source, and the rotor assembly is simple in structural design, good in synchronism and good in rotation stability.
The inner support 4 comprises a bottom support 41 and an upper support 42 formed at the upper end of the bottom support 41, the bottom support 41 is abutted against the upper motor cover 2, and the upper support 42 extends upwards into the upper part of the upper motor cover 2; the stator assembly 5 and the rotor assembly are mounted on the bottom bracket 41. The bottom support forms an inner cavity in the cavity, and the upper support can keep communicating with the second side air port while guiding air entering the inner cavity of the bottom support through the second air port, and is used for discharging formed heat dissipation air out of the inner cavity.
An inner cavity sealing ring 63 is arranged between the bottom bracket 41 and the motor upper cover 2; the bottom bracket 41 is abutted against the corner of the motor upper cover 2, and the inner cavity sealing ring 63 is bent and arranged at the corner of the motor upper cover 2. Because corner itself just is unfavorable for the circulation of air, consequently sets up the inner chamber sealing washer through the corner at the motor upper shield, can play better sealed effect, prevents that the air from flowing into the exocoel.
The motor also comprises an outer bracket 3, the outer bracket 3 is arranged at the lower part of the outer cavity 102 and is positioned at the opposite outer side of the inner bracket 4, the upper end of the outer bracket 3 is not abutted against the inner bracket 4, the outer bracket 3 divides the outer cavity 102 into an inner outer cavity 1021 and an outer cavity 1022 which are communicated, and the outer impeller 521 introduces air entering from the first air port 11 into the inner outer cavity 1021 and then enters the outer cavity 1022 to be led out through the first side air port 12.
The arrangement of the outer support can prolong the stroke of the motor inlet air entering from the first air port in the outer cavity, and particularly, the outer support is vertically arranged, so that the contact time and the contact area between the cold air of the motor inlet air and the inner support are increased, the heat conduction efficiency is improved, and the heat dissipation effect is improved.
The radius of the circular cross section of the inner outer cavity 1021 is smaller than the radius of the circular cross section of the outer cavity 1022. The narrow passageway of inlayer exocoel can keep more the contacting with the inner support of cold air, the radiating effect is improved, and the upper end of outer support has the inflation portion, the inflation portion is when keeping the upper and lower radius of inlayer exocoel unanimous, the extrusion has been carried out to the top of outer exocoel, the radius on outer exocoel upper portion has been dwindled promptly, because the space of this part is less, therefore the flow rate of air can be great, the lower part that can carry out the quick extrusion income outer exocoel of hot-air after the heat exchange at the inlayer exocoel is discharged by first side wind gap, can not influence the exhaust velocity of hot-air, indirect promotion the radiating efficiency.
The outer bracket 3 is arranged on the lower cover 1 of the motor, and a shock pad 62 is arranged between the outer bracket and the lower cover, on one hand, the shock pad can prevent the outer bracket from violently shaking and keep the motor to stably run, and on the other hand, cold air can be prevented from directly entering the outer cavity from the inner outer cavity through a gap, so that the heat dissipation effect is prevented from being reduced.
The lower end of the upper motor cover 2 is provided with a slot 20, and the upper end of the lower motor cover 1 extends into the slot 20 to seal the outer cavity 102. Specifically, an outer wall 201 and an inner wall 202 are respectively formed on two sides of the lower end of the upper cover of the motor, the length of the inner wall is greater than that of the outer wall, and a slot 20 is formed between the inner wall and the outer wall. An outer cavity sealing ring 61 is arranged in the slot 20, and the upper end of the lower motor cover 1 is abutted against the outer cavity sealing ring 61. Through setting up the exocoel sealing washer, can guarantee the air between the inside and outside of motor isolated, guarantee the work efficiency of motor.
As shown in fig. 6 to 7, the present invention also provides a vacuum cleaner in which a motor having a high-efficiency cooling air duct is installed. The lower end of the motor lower cover 1 is provided with a sealing groove 100, and an organism sealing gasket 64 is arranged in the sealing groove 100. The organism sealing washer is used for separation first wind gap and first side wind gap, prevents that the hot air of motor air-out department from being inhaled motor air inlet department, avoids leading to the radiating effect to reduce.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. The motor with the high-efficiency cooling air duct is characterized by comprising a motor lower cover, a motor upper cover, an inner support, a stator component and a rotor component, the lower motor cover and the upper motor cover are assembled to form a cavity, the lower motor cover is provided with a first air port and a first side air port which are communicated with the cavity, the upper cover of the motor is provided with a second air port and a second side air port which are communicated with the cavity, the inner support is arranged in the cavity, the inner bracket divides the cavity into an inner cavity and an outer cavity which are not communicated with each other, the stator assembly and the rotor assembly are both arranged on the inner bracket, the rotor component comprises a rotating shaft, an inner impeller and an outer impeller which are arranged on the rotating shaft, the inner impeller is positioned in the inner cavity, the inner impeller introduces the air entering from the second air port into the inner cavity and then leads out from the second side air port, the outer impeller is positioned in the outer cavity, and the outer impeller introduces the air entering from the first air port into the outer cavity and then leads out from the first side air port.
2. The motor with the efficient cooling air duct as claimed in claim 1, wherein the inner bracket comprises a bottom bracket and an upper bracket formed at the upper end of the bottom bracket, the bottom bracket abuts against the upper cover of the motor, and the upper bracket extends upwards to the upper part of the upper cover of the motor; the stator assembly and the rotor assembly are mounted on the bottom bracket.
3. The motor with the efficient cooling air duct according to claim 2, wherein an inner cavity sealing ring is installed between the bottom bracket and the upper cover of the motor; the bottom support is abutted to the corner of the upper motor cover, and the inner cavity sealing ring is bent and arranged at the corner of the upper motor cover.
4. The motor with the efficient cooling air duct according to claim 1, further comprising an outer bracket, wherein the outer bracket is arranged at the lower part of the outer cavity and is located at the opposite outer side of the inner bracket, the upper end of the outer bracket is not abutted against the inner bracket, the outer bracket divides the outer cavity into an inner outer cavity and an outer cavity which are communicated, and the outer impeller introduces air entering from the first air port into the inner outer cavity, then enters the outer cavity and is led out through the first side air port.
5. The electric machine with a high efficiency cooling air duct of claim 4, wherein the radius of the circular cross section of the inner outer cavity is smaller than the radius of the circular cross section of the outer cavity.
6. The motor with the efficient cooling air duct as claimed in claim 4, wherein the outer bracket is mounted on the lower housing of the motor, and a shock pad is arranged between the outer bracket and the lower housing.
7. The motor with the efficient cooling air duct as claimed in claim 1, wherein the lower end of the upper motor cover is provided with a slot, and the upper end of the lower motor cover extends into the slot to seal the outer cavity.
8. The motor with the efficient cooling air duct of claim 7, wherein an outer cavity sealing ring is installed in the slot, and the upper end of the lower motor cover abuts against the outer cavity sealing ring.
9. The vacuum cleaner is characterized in that the motor with the efficient cooling air duct is installed in the vacuum cleaner according to any one of claims 1 to 8.
10. The vacuum cleaner of claim 9, wherein a sealing groove is formed at a lower end of the lower motor cover, and a body sealing gasket is mounted in the sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995130.3A CN113598645B (en) | 2021-08-27 | 2021-08-27 | Motor with high-efficient cooling air duct and dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995130.3A CN113598645B (en) | 2021-08-27 | 2021-08-27 | Motor with high-efficient cooling air duct and dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113598645A true CN113598645A (en) | 2021-11-05 |
| CN113598645B CN113598645B (en) | 2024-07-02 |
Family
ID=78309527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110995130.3A Active CN113598645B (en) | 2021-08-27 | 2021-08-27 | Motor with high-efficient cooling air duct and dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113598645B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012107964A1 (en) * | 2011-02-08 | 2012-08-16 | パナソニック株式会社 | Exhaust-circulating electric vacuum cleaner |
| CN208442047U (en) * | 2018-06-25 | 2019-01-29 | 宁波富佳实业有限公司 | A kind of small-sized dry and wet two-purpose dust collector electric fan |
| CN110403516A (en) * | 2019-08-15 | 2019-11-05 | 追觅科技（天津）有限公司 | A kind of hand held cleaner convenient for battery heat dissipation |
| CN112806902A (en) * | 2019-11-18 | 2021-05-18 | 珠海格力电器股份有限公司 | Motor and dust catcher |
| CN215874447U (en) * | 2021-08-27 | 2022-02-22 | 苏州日新电器科技有限公司 | Motor and dust catcher with high-efficient cooling air duct |
-
2021
- 2021-08-27 CN CN202110995130.3A patent/CN113598645B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012107964A1 (en) * | 2011-02-08 | 2012-08-16 | パナソニック株式会社 | Exhaust-circulating electric vacuum cleaner |
| CN208442047U (en) * | 2018-06-25 | 2019-01-29 | 宁波富佳实业有限公司 | A kind of small-sized dry and wet two-purpose dust collector electric fan |
| CN110403516A (en) * | 2019-08-15 | 2019-11-05 | 追觅科技（天津）有限公司 | A kind of hand held cleaner convenient for battery heat dissipation |
| CN112806902A (en) * | 2019-11-18 | 2021-05-18 | 珠海格力电器股份有限公司 | Motor and dust catcher |
| CN215874447U (en) * | 2021-08-27 | 2022-02-22 | 苏州日新电器科技有限公司 | Motor and dust catcher with high-efficient cooling air duct |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113598645B (en) | 2024-07-02 |
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