CN113729559A - Cold and hot wind channel of dust catcher separates wind mechanism - Google Patents
Cold and hot wind channel of dust catcher separates wind mechanism Download PDFInfo
- Publication number
- CN113729559A CN113729559A CN202111085267.1A CN202111085267A CN113729559A CN 113729559 A CN113729559 A CN 113729559A CN 202111085267 A CN202111085267 A CN 202111085267A CN 113729559 A CN113729559 A CN 113729559A
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- air
- cavity
- motor
- cold
- heat dissipation
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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
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a cold and hot air duct air isolation mechanism of a dust collector, wherein a motor is arranged in a shell of the dust collector, an upper cover of the motor is arranged in a lower cover to form a cavity, an inner support for separating the cavity into an inner cavity and an outer cavity is arranged in the cavity, an inner impeller and an outer impeller on a rotor assembly are respectively positioned in the inner cavity and the outer cavity, the upper cover is provided with a heat dissipation air inlet and a heat dissipation air outlet which are communicated with the inner cavity, an isolation assembly is arranged between the upper cover and the shell and used for preventing a heat dissipation cold air area from being communicated with a heat dissipation hot air area, the lower cover is provided with a motor air inlet and a motor air outlet which are communicated with the outer cavity, and a sealing gasket at the bottom end of the lower cover is used for preventing an air inlet cold air area from being communicated with an air outlet hot air area. According to the invention, the motor cavity is divided into the inner cavity and the outer cavity to form the air isolation of the inner cavity and the outer cavity and form two independent air channels, the air isolation effect of the isolation component and the sealing gasket ensures the content of cold air entering the motor cavity, and the integral heat dissipation efficiency of the motor is further improved.
Description
Technical Field
The invention relates to the technical field of dust collectors, in particular to a cold and hot air duct air insulation mechanism of a dust collector.
Background
The motor of the dust collector is the heart of the dust collector, and mainly has the main function of forming negative pressure in the motor and realizing the function of generating wind power by the motor through the air flow generated by the negative pressure passing through the motor, so that the motor has higher performance requirement and ensures the service life of the motor. The air duct of the conventional motor is single, the heat dissipation effect of the air duct on the motor is limited, and the heat dissipation effect on a rotor assembly and a stator assembly of the motor is poor; 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, so that the conducted air channels can influence the heat dissipation efficiency.
Disclosure of Invention
The invention aims to provide a cold and hot air duct air insulation mechanism of a dust collector, which separates a motor cavity into an inner cavity and an outer cavity to form air insulation of the inner cavity and the outer cavity, namely two separate air ducts are provided, the air insulation effect of a separation component and a sealing gasket ensures the content of cold air entering the motor cavity, and the integral heat dissipation efficiency of a motor can be further improved.
In order to achieve the purpose, the invention adopts the technical scheme that: a cold and hot air duct air isolation mechanism of a dust collector comprises a motor, wherein the motor is arranged in a shell of the dust collector and comprises an upper cover and a lower cover, the upper cover is arranged in the lower cover to form a cavity, an inner support for dividing the cavity into an inner cavity and an outer cavity is arranged in the cavity, a stator assembly and a rotor assembly are arranged on the inner support, an inner impeller and an outer impeller on the rotor assembly are respectively positioned in the inner cavity and the outer cavity, the upper cover is provided with a heat dissipation air inlet and a heat dissipation air outlet which are communicated with the inner cavity, cold air is guided into the inner cavity by the heat dissipation air inlet and then is discharged by the heat dissipation air outlet, an isolation assembly is arranged between the upper cover and the shell and prevents a heat dissipation cold air area from being communicated with a heat dissipation hot air area, the lower cover is provided with a motor air inlet and a motor air outlet which are communicated with the outer cavity, and the cold air is discharged by the motor air outlet after being guided into the outer cavity by the motor air inlet, and the sealing gasket at the bottom end of the lower cover prevents the air inlet cold air area from being communicated with the air outlet hot air area.
As a further optimization, the blocking assembly comprises a positioning piece and a sealing piece, the positioning piece is formed on the outer wall of the upper cover, the sealing piece is installed on the positioning piece, and the sealing piece is abutted to the shell.
As a further optimization, the positioning member comprises a supporting portion and a clamping portion, a groove is formed in the clamping portion, and the sealing member is in interference butt joint with the groove.
As a further optimization, the blocking assembly further comprises a push rod, the push rod is arranged on the inner wall of the shell, and the push rod is in interference butt joint with one end, far away from the positioning piece, of the sealing piece.
As a further optimization, the bottom end of the lower cover is provided with an 8-shaped sealing groove, the sealing groove separates and surrounds the motor air inlet and the motor air outlet, and the sealing gasket is arranged in the sealing groove.
As further optimization, an inner cavity sealing ring is arranged between the inner support and the upper cover; the inner support is abutted to the corner of the upper cover, and the inner cavity sealing ring is bent and arranged at the corner of the upper 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 outer cavity and an outer cavity which are communicated by the outer support, and the outer impeller introduces air entering from the air inlet of the motor into the inner outer cavity, then enters the outer cavity and is led out from the air outlet of the motor.
As a further optimization, the radius of the circular section of the inner outer cavity is smaller than that of the outer cavity.
As a further optimization, the outer support is arranged on the lower cover, and a shock pad is arranged between the outer support and the lower cover.
As a further optimization, the lower end of the upper cover is provided with a slot, an outer cavity sealing ring is arranged in the slot, and the upper end of the lower cover extends into the slot and is abutted against the outer cavity sealing ring.
Compared with the prior art, the invention has the following beneficial effects:
the motor cavity is divided into the inner cavity and the outer cavity to form the air separation of the inner cavity and the outer cavity, namely, the motor is provided with two independent air channels which are not influenced mutually, and the heat dissipation efficiency is high; and through the effect of separation subassembly, avoid the direct cold air of sneaking into heat dissipation air inlet department of inner chamber exhaust hot-air, through the effect of sealed pad, avoid during the direct cold air of sneaking into motor air inlet department of exocoel exhaust hot-air, separation subassembly and sealed wind-proof effect of sealing up guarantee the content of the cold air that gets into in the motor cavity, can further promote the holistic radiating efficiency of motor.
Drawings
Fig. 1 is a schematic structural view of a vacuum cleaner of the present invention.
Fig. 2 is a schematic view showing the flow of air between the motor and the cleaner of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is a sectional view of the motor of the present invention.
Fig. 5 is a side view of the motor of the present invention.
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, a cold and hot air duct air insulation mechanism of a dust collector comprises a motor 100, the motor 100 is installed in a housing 200 of the dust collector, the motor 100 comprises an upper cover 2 and a lower cover 1, the upper cover 2 is installed on the lower cover 1 to form a cavity, an inner support 4 for dividing the inner cover into an inner cavity 101 and an outer cavity 102 is arranged in the cavity, a stator assembly 51 and a rotor assembly are installed on the inner support 4, an inner impeller 522 and an outer impeller 521 on a rotating shaft 520 of the rotor assembly are respectively located in the inner cavity 101 and the outer cavity 102, the upper cover 2 is provided with a heat dissipation air inlet 21 and a heat dissipation air outlet 22 which are both communicated with the inner cavity 101, the inner impeller 522 guides cold air from the heat dissipation air inlet 21 into the inner cavity 101 and then discharges the cold air from the heat dissipation air outlet 22, a blocking assembly 23 is arranged between the upper cover 2 and the housing 200, the blocking assembly 23 prevents a heat dissipation cold air cooling area from being communicated with a heat dissipation hot air area, the lower cover 1 is provided with a motor inlet 11 and a motor air outlet 12 which are both communicated with the outer cavity 102, the outer impeller 521 guides cold air from the motor air inlet 11 into the outer cavity 102 and then discharges the cold air from the motor air outlet 12, and the sealing gasket 61 at the bottom end of the lower cover 1 prevents the air inlet cold air area from being communicated with the air outlet hot air area.
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 air inlet of the motor and is then discharged from the air outlet of the motor, and the process provides the wind power for the dust collector during working. Because the air entering from the air inlet of the motor 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, so that the cooling effect is achieved; 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 port, the temperature is reduced in the rotor assembly and the stator assembly, then the cold air is guided out through the second side air port, hot air is discharged out of the motor, due to the blocking effect of the blocking assembly, the heat dissipation cold air area at the heat dissipation air inlet and the heat dissipation hot air area at the heat dissipation air outlet can be effectively blocked, the hot air discharged from the heat dissipation air outlet is prevented from directly entering the inner cavity through the heat dissipation air inlet, the content of the cold air entering the inner cavity is ensured through the air blocking at the position, and the heat dissipation efficiency of the inner cavity is improved.
The motor cavity is divided into the inner cavity and the outer cavity to form the air separation of the inner cavity and the outer cavity, namely, the motor is provided with two independent air channels which are not influenced mutually, and the heat dissipation efficiency is high; and through the effect of separation subassembly, avoid the direct cold air of sneaking into heat dissipation air inlet department of inner chamber exhaust hot-air, through the effect of sealed pad, avoid during the direct cold air of sneaking into motor air inlet department of exocoel exhaust hot-air, separation subassembly and sealed wind-proof effect of filling up can further promote the holistic radiating efficiency of motor.
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.
Specifically, separation subassembly 23 includes setting element 231 and sealing member 232, and setting element 231 takes shape in upper shield 2 outer wall, and sealing member 232 is installed on setting element 231, and this sealing member 232 and casing 200 butt, elastic sealing member can be selected for use to the sealing member, realizes totally sealedly through the interference butt.
The positioning member 231 includes a supporting portion 2311 and a holding portion 2312, a groove 2310 is formed on the holding portion 2312, and the sealing member 232 is in interference contact with the groove 2310. The blocking assembly 23 further includes a top rod 2001, the top rod 2001 is disposed on the inner wall of the housing 20, the top rod 2001 is pressed on one end of the sealing element 232 far away from the positioning element 231 in an interference manner, that is, the top rod contacts the sealing element to block the heat dissipation air outlet area from the heat dissipation air inlet area.
The bottom end of the lower cover 1 is provided with a 8-shaped sealing groove 13, the sealing groove 13 separates and surrounds the motor air inlet 11 and the motor air outlet 12, and the sealing gasket 61 is installed in the sealing groove 13, specifically, the sealing groove is composed of a first annular sealing groove 131 surrounding the motor air inlet and a second annular sealing groove 132 surrounding the motor air outlet, and the two jointly form an 8 shape, so that the forming process is simple, and meanwhile, the space can be saved.
An inner cavity sealing ring 62 is arranged between the inner bracket 4 and the upper cover 2; the inner support 4 is abutted with the corner of the upper cover 2, and the inner cavity sealing ring 61 is bent and arranged at the corner of the 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 upper shield, can play better sealed effect, realizes effectively separating wind of inner chamber and exocoel.
The motor 100 further comprises an outer bracket 3, the outer bracket 3 is arranged at the lower part of the outer cavity 102 and is located 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 motor air inlet 11 into the inner outer cavity 1021 and then enters the outer cavity 1022 to be led out through the motor air outlet 12. The arrangement of the outer support can prolong the stroke of cold air entering the motor air inlet in the outer cavity, the outer support is vertically arranged, the contact between the cold air and the inner support is 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 and the inner support of cold air to contact, the radiating effect is improved, and the upper end of outer support has the inflation portion, the inflation portion has extruded the top of outer exocoel, the radius on outer exocoel upper portion has been reduced, because the space of this part is less, therefore the flow rate of air can be great, can discharge the lower part that the quick extrusion of hot-air after carrying out the heat exchange at the inner layer exocoel goes into outer exocoel by motor air outlet, can not influence the exit velocity of hot-air, indirect promotion the radiating efficiency.
The outer support 3 is arranged on the lower cover 1, and a shock pad 63 is arranged between the outer support and the lower cover, on one hand, the shock pad can prevent the outer support from violently vibrating and keep the motor to stably run, on the other hand, cold air can be prevented from directly entering the outer cavity from the inner cavity through a gap, a good wind isolation effect is achieved, and the reduction of a heat dissipation effect is avoided.
The lower extreme of upper shield 2 is equipped with the slot, is equipped with exocoel sealing washer 64 in the slot, and lower cover 1 upper end stretches into in the slot and with exocoel sealing washer 64 butt, realizes separating wind of motor cavity and external environment, guarantees the work efficiency of motor.
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. A cold and hot air duct air isolation mechanism of a dust collector is characterized by comprising a motor, wherein the motor is arranged in a shell of the dust collector and comprises an upper cover and a lower cover, the upper cover is arranged on the lower cover to form a cavity, an inner support for dividing the upper cover into an inner cavity and an outer cavity is arranged in the cavity, a stator assembly and a rotor assembly are arranged on the inner support, an inner impeller and an outer impeller on the rotor assembly are respectively positioned in the inner cavity and the outer cavity, the upper cover is provided with a heat dissipation air inlet and a heat dissipation air outlet which are communicated with the inner cavity, cold air is guided into the inner cavity by the heat dissipation air inlet and then is discharged by the heat dissipation air outlet, an isolation assembly is arranged between the upper cover and the shell and prevents a heat dissipation cold air area from being communicated with a heat dissipation hot air area, the lower cover is provided with a motor air inlet and a motor air outlet which are communicated with the outer cavity, and cold air is discharged by the motor air outlet after being guided into the outer cavity by the motor air inlet, and the sealing gasket at the bottom end of the lower cover prevents the air inlet cold air area from being communicated with the air outlet hot air area.
2. A cold-hot air duct air-insulating mechanism for a vacuum cleaner as claimed in claim 1, wherein the blocking assembly includes a positioning member formed on an outer wall of the upper housing and a sealing member mounted on the positioning member, the sealing member abutting against the housing.
3. The cold and hot air duct air insulation mechanism of a vacuum cleaner as claimed in claim 2, wherein the positioning member comprises a supporting portion and a clamping portion, the clamping portion is provided with a groove, and the sealing member is pressed against the groove in an interference manner.
4. The cold and hot air duct air insulation mechanism of a vacuum cleaner as claimed in claim 2, wherein the blocking assembly further comprises a push rod, the push rod is disposed on the inner wall of the housing, and the push rod is pressed against one end of the sealing member away from the positioning member in an interference manner.
5. The cold and hot air duct wind isolation mechanism of a vacuum cleaner as claimed in claim 1, wherein the bottom of the lower cover is provided with a sealing groove in a shape of "8", the sealing groove separates and surrounds the motor air inlet and the motor air outlet, and the sealing gasket is installed in the sealing groove.
6. A cold and hot air duct wind isolation mechanism of a vacuum cleaner as claimed in claim 1, wherein an inner cavity sealing ring is installed between the inner bracket and the upper cover; the inner support is abutted to the corner of the upper cover, and the inner cavity sealing ring is bent and arranged at the corner of the upper cover.
7. The cold and hot air duct air-insulating mechanism of a vacuum cleaner as claimed in claim 1, further comprising an outer bracket disposed at a lower portion of the outer chamber and located at an opposite outer side of the inner bracket, an upper end of the outer bracket not abutting against the inner bracket, the outer bracket dividing the outer chamber into an inner outer chamber and an outer chamber which are communicated with each other, the outer impeller introducing air introduced from the air inlet of the motor into the inner outer chamber, then introducing the air into the outer chamber, and then discharging the air out through the air outlet of the motor.
8. A cold and hot air duct wind isolation mechanism of a vacuum cleaner as claimed in claim 7, wherein the radius of the circular cross section of the inner outer chamber is smaller than the radius of the circular cross section of the outer chamber.
9. A cold and hot air duct wind isolation mechanism according to claim 7, wherein said outer frame is mounted to the lower housing with a shock pad interposed therebetween.
10. The cold and hot air duct wind isolation mechanism of a vacuum cleaner as claimed in claim 1, wherein the lower end of the upper cover is provided with a slot, an outer cavity sealing ring is arranged in the slot, and the upper end of the lower cover extends into the slot and abuts against the outer cavity sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111085267.1A CN113729559A (en) | 2021-09-16 | 2021-09-16 | Cold and hot wind channel of dust catcher separates wind mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111085267.1A CN113729559A (en) | 2021-09-16 | 2021-09-16 | Cold and hot wind channel of dust catcher separates wind mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113729559A true CN113729559A (en) | 2021-12-03 |
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ID=78739288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111085267.1A Pending CN113729559A (en) | 2021-09-16 | 2021-09-16 | Cold and hot wind channel of dust catcher separates wind mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113729559A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114668333A (en) * | 2022-03-30 | 2022-06-28 | 格力博(江苏)股份有限公司 | Dust collector |
-
2021
- 2021-09-16 CN CN202111085267.1A patent/CN113729559A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114668333A (en) * | 2022-03-30 | 2022-06-28 | 格力博(江苏)股份有限公司 | Dust collector |
| CN114668333B (en) * | 2022-03-30 | 2023-09-12 | 格力博(江苏)股份有限公司 | Dust collector |
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