A vacuum source cooling system and a cleaning device

Abstract

The present invention discloses a vacuum source cooling system and a cleaning device. Among them, the vacuum source cooling system includes an air guide channel air inlet hole provided on a frame, an air guide channel provided inside the frame, an air guide channel air outlet hole provided on a frame cover plate, a first air guide hole provided on the side of a motor upper cover, a second air guide hole provided inside the motor upper cover, an air inlet channel provided on the side wall of a motor main body, a main air flow inlet hole provided at the bottom of the motor main body, and a main air flow first air outlet provided on the side wall of the motor main body. The lowest point of the air guide channel air inlet hole on the frame is at least flush with the lowest point of the air guide channel inside the frame, and the lowest point of the air guide channel air outlet hole on the frame cover plate is higher than the lowest point of the air guide channel inside the frame. The present invention can continuously cool the motor main body, and at the same time, the air flow can be automatically discharged from the vacuum source after cooling to ensure the safe operation of the motor main body.

Description

Technical Field

[0001] The present invention relates to the field of vacuum cleaners, in particular to a vacuum source cooling system and a cleaning device that can continuously cool the inside of the motor main body to ensure the continuous operation of the vacuum cleaner; at the same time, the airflow can automatically discharge the vacuum source after cooling to ensure the safe operation of the motor main body. Background Art

[0002] When the vacuum cleaner is working, the circuit board of its motor will heat up due to long-term operation. Therefore, it is necessary to cool the motor when the vacuum cleaner is working. The existing cooling systems for motors in vacuum cleaners are usually relatively simple, and liquids in the environment can easily enter the circuit board of the motor, resulting in damage to the circuit board due to water ingress.

[0003] For this reason, we have developed a vacuum source cooling system and a cleaning device that can continuously cool the inside of the motor main body to ensure the continuous operation of the vacuum cleaner; at the same time, the airflow can automatically discharge the vacuum source after cooling to ensure the safe operation of the motor main body. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a vacuum source cooling system and a cleaning device that can continuously cool the inside of the motor main body to ensure the continuous operation of the vacuum cleaner; at the same time, the water vapor brought in by the cooling airflow can be automatically discharged from the vacuum source to ensure the safe operation of the motor main body.

[0005] To achieve the above object, the technical solution adopted by the present invention is: a vacuum source cooling system, including a wind guide channel air inlet hole provided on the frame in sequence, a wind guide channel provided inside the frame, a wind guide channel air outlet hole provided on the frame cover plate, a first wind guide hole provided on the side of the motor upper cover, a second wind guide hole provided inside the motor upper cover, an air inlet channel provided on the side wall of the motor main body, a main air flow inlet hole provided at the bottom of the motor main body, and a main air flow first exhaust port provided on the side wall of the motor main body. The lowest point of the wind guide channel air inlet hole on the frame is at least flush with the lowest point of the wind guide channel inside the frame, and the lowest point of the wind guide channel air outlet hole on the frame cover plate is higher than the lowest point of the wind guide channel inside the frame.

[0006] Preferably, a plurality of inclined and parallel grooves are vertically and uniformly distributed on the outer surface of the side wall of the frame, and the wind guide channel air inlet holes are respectively provided at the upper parts of the bottoms of each groove; the wind guide channel air inlet holes are arranged parallel to the corresponding grooves; the lower sides of each groove are respectively inclined, and the height of the outer end is lower than that of the inner end.

[0007] Preferably, the wind guide channel is arranged along the height direction of the frame and is in an inverted L shape, its vertical section is vertically arranged, and the horizontal section is inclined, and the height is lower closer to the vertical section to facilitate water to flow from the horizontal section to the vertical section.

[0008] Preferably, the height of the vertical section of the air guiding channel is at least 10 CM.

[0009] Preferably, the height of the bottom surface of the vertical section of the air guiding channel is flush with the height of the air inlet hole of the lowermost air guiding channel, so that the water accumulated in the air guiding channel is completely discharged from the air inlet hole of the lowermost air guiding channel.

[0010] Preferably, a convex ring is provided on the inner cavity bottom of the upper surface of the motor upper cover. The convex ring is located outside the second air guiding hole and wraps the second air guiding hole to block the water in the cooling air flow outside the convex ring; the inner cavity bottom of the upper surface of the motor upper cover between the second air guiding hole and the first air guiding hole is an inclined surface to allow the water blocked by the convex ring to flow out from the first air guiding hole along the inclined surface.

[0011] Preferably, the air inlet channel on the side wall of the motor main body communicates with the main air inlet hole of the motor main air flow, so that the air flow is discharged from the vacuum source together with the main air flow.

[0012] Preferably, a cleaning device includes a body; the body includes a frame, a vacuum source and a collection box, wherein the vacuum source and the collection box are installed on the frame; the vacuum source includes a motor upper cover, a motor mounting seat and a motor main body. The motor main body is arranged in the motor mounting seat, the motor upper cover is arranged above the motor main body, and the motor upper cover and the motor mounting seat cooperate to fix the motor main body, and includes the vacuum source cooling system according to any one of claims 1-9.

[0013] Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art:

[0014] In the vacuum source cooling system and the cleaning device of the present invention, the cooling air flow enters from the air inlet hole of the air guiding channel, and sequentially passes through the air guiding channel, the air guiding channel outlet hole, the first air guiding hole, the second air guiding hole, and the cooling air inlet to reach the motor assembly to continuously cool components such as the circuit board. The air flow after cooling the components such as the circuit board continues to flow through the air inlet channel and the air inlet channel outlet to converge with the main air flow, and finally is discharged outside the body along with the main air flow through the main air flow first outlet, the main air flow second outlet and the main air flow third outlet, realizing continuous cooling of components such as the circuit board and ensuring the continuous operation of the vacuum cleaner; at the same time, the water vapor brought in by the cooling air flow can be discharged from the vacuum source along the inner cavity bottom of the upper surface of the motor upper cover, the air guiding channel and the air guiding channel air inlet hole to ensure the safe operation of the motor main body. Description of the Drawings

[0015] The technical solutions of the present invention will be further described below with reference to the drawings:

[0016] Figure 1Schematic diagram of the vacuum source cooling system and the body of the cleaning device according to the present invention;

[0017] Figure 2 is Figure 1 Enlarged sectional view;

[0018] Figure 3 is Figure 2 Enlarged view of part A in

[0019] Figure 4 First-angle schematic diagram of the frame of the vacuum source cooling system and the body of the cleaning device according to the present invention;

[0020] Figure 5 Second-angle schematic diagram of the frame of the vacuum source cooling system and the body of the cleaning device according to the present invention;

[0021] Figure 6 is Figure 5 Enlarged view of part B in

[0022] Figure 7 Schematic diagram of the frame of the vacuum source cooling system and the body of the cleaning device according to the present invention when the cover plate is removed;

[0023] Figure 8 is Figure 7 Enlarged view of part C in

[0024] Figure 9 is Figure 8 Enlarged view of part D in

[0025] Figure 10 First-angle enlarged schematic diagram of the motor upper cover of the vacuum source cooling system and the body of the cleaning device according to the present invention when the cover is removed;

[0026] Figure 11 Second-angle enlarged schematic diagram of the motor upper cover of the vacuum source cooling system and the body of the cleaning device according to the present invention when the cover is removed;

[0027] Figure 12 First-angle enlarged schematic diagram of the motor assembly of the vacuum source cooling system and the body of the cleaning device according to the present invention;

[0028] Figure 13 Second-angle enlarged schematic diagram of the vacuum source cooling system and the body of the cleaning device according to the present invention;

[0029] Figure 14 Enlarged sectional view of the motor assembly of the vacuum source cooling system and the body of the cleaning device according to the present invention;

[0030] Wherein: 1. Frame; 2. Motor assembly; 3. Dust bucket; 11. Cover plate; 12. Air guide channel; 13. Groove; 14. Drainage groove; 15. Drainage part; 21. Motor upper cover; 22. Motor main body; 23. Motor mounting seat; 24. Annular protrusion; 121. Air guide channel air inlet hole; 122. Air guide channel air outlet hole; 211. First air guide hole; 212. Second air guide hole; 213. Convex ring; 214. Main air flow second air outlet; 215. Main air flow third air outlet; 216. Enclosure; 217. Cooling air flow area; 218. Main air flow area; 219. Lid; 221. Cooling air flow inlet; 222. Air inlet channel; 223. Air inlet channel air outlet; 224. Main air flow air inlet hole; 225. Main air flow first air outlet; 226. Circuit board; 227. Air pipe; 1221. Drainage trough. Detailed implementation manners

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0032] Please refer to Figure 1-14 , the vacuum source cooling system of the present invention includes an air guide channel air inlet hole 121 provided on the frame 1, an air guide channel 12 provided in the frame 1, an air guide channel air outlet hole 122 provided on the cover plate 11 of the frame 1, a first air guide hole 211 provided on the side of the motor upper cover 21, a second air guide hole 212 provided at the center of the inner cavity bottom of the motor upper cover 21, a cooling air flow inlet 221 provided at the upper end of the motor main body 22, an air inlet channel 222 provided on the side wall of the motor main body 22, a main air flow air inlet hole 224 provided at the bottom of the motor main body 22, a main air flow first air outlet 225 provided on the side wall of the motor main body 22, a main air flow second air outlet 214 provided at the side of the inner cavity bottom of the motor upper cover 21, and a main air flow third air outlet 215 provided on the side wall of the motor upper cover 21, which are connected in sequence; the external cooling air flow can enter the air guide channel 12 from the air guide channel air inlet hole 121, then enter the first air guide hole 211 from the air guide channel air outlet hole 122, and then enter the motor main body 22 through the second air guide hole 212 and the cooling air flow inlet 221. After cooling components such as the circuit board 226 provided in the motor main body 22, it then enters the main air flow air inlet hole 224 through the air inlet channel 222, and then is discharged along with the main air flow.

[0033] The main air flow enters the motor main body 22 through the main air flow inlet hole 224, then is discharged through the first main air flow outlet 225, and then successively passes through the second main air flow outlet 214 and the third main air flow outlet 215 and is discharged from the vacuum source 2.

[0034] A plurality of inclined and parallel grooves 13 are vertically and evenly distributed on the outer surface of the side wall of the frame 1. An air guide channel inlet hole 121 is respectively arranged on the upper part of the bottom of each groove; the air guide channel inlet hole 121 is arranged parallel to the corresponding groove 13; the lower side surfaces of each groove 13 are respectively inclined, and the height of the outer end part is lower than that of the inner end part; when the vacuum cleaner is used in a spraying environment, most of the water will be blocked by the bottom of the groove 13 and flow out along the lower side surface of the groove 13, so that only a very small amount of water enters the air guide channel 12 from the air guide channel inlet hole 121; a drain groove 14 is respectively arranged on the inner surface of each air guide channel inlet hole 121; the drain groove 14 is arranged parallel to the groove 13; each air guide channel inlet hole 121 is respectively arranged at the lower part of the bottom of the drain groove 14; a drainage groove 1221 is also arranged on the inner surface of the air guide channel inlet hole 121 along the height direction of the air guide channel 12; the drainage groove 1221 is communicated with the drain groove 14; drainage parts 15 are respectively arranged at the communicating parts of the drainage groove 1221 and the drain groove 14, so that the water in the drainage groove can enter the corresponding drain groove 14 along the drainage part 15 and is discharged through the corresponding air guide channel inlet hole 121.

[0035] The air guide channel 12 is arranged along the height direction of the frame 1 and is in an inverted L shape, and the height of its vertical section is at least 10 CM to increase the height of the air guide channel 12; the horizontal section of the air guide channel 12 is inclined; and the lower the height is closer to the vertical section, so as to facilitate the water to flow from the horizontal section to the vertical section; by increasing the length of the air guide channel 12, the moisture in the cooling air flow can be more fully condensed on the inner wall of the air guide channel 12 when climbing; the height of the bottom surface of the vertical section of the air guide channel 12 is flush with the height of the lowermost air guide channel inlet hole 121, so that the water accumulated in the air guide channel 12 can be completely discharged from the lowermost air guide channel inlet hole 121; the flow direction of the cooling air flow in the air guide channel 12 is from the air guide channel inlet hole 121 to climb to the air guide channel outlet hole 122, so that a part of the condensed water flows back to the bottom of the air guide channel 12 along the drainage groove 1221 according to its gravity and is then discharged from the lowermost air guide channel inlet hole 121, and the other part enters the corresponding drain groove 14 from the drainage part 15 communicated with the drainage groove 1221, is discharged from the corresponding air guide channel inlet hole 121, and then flows out along the corresponding groove 13.

[0036] On the bottom of the inner cavity of the upper surface of the motor upper cover 21, there is a convex ring 213. The convex ring 213 is located outside the second air guide hole 212 and wraps the second air guide hole 212 to block the water in the cooling air flow outside the convex ring 213. The bottom of the inner cavity of the upper surface of the motor upper cover 21 between the second air guide hole 212 and the first air guide hole 211 is an inclined surface to allow the water blocked by the convex ring 213 to flow out from the first air guide hole 211 along the inclined surface.

[0037] On the bottom of the inner cavity of the upper surface of the motor upper cover 21, there is also a retaining plate 216. The retaining plate 216 and the cover 219 cooperate to divide the inner cavity of the motor upper cover 21 into a cooling air flow area 217 and a main air flow discharge area 218. Among them, the first air guide hole 211 and the second air guide hole 212 are located in the cooling air flow area 217, and the main air flow second discharge port 214 and the main air flow third discharge port 215 are located in the main air flow discharge area 218 to prevent the cooling air flow from mixing with the main air flow.

[0038] The air inlet of the air inlet channel 222 is arranged in the main air inlet hole 224 so that the cooling air flow is discharged from the vacuum source 2 together with the main air flow.

[0039] On the bottom of the motor upper cover 21, there is also an annular protrusion 24. The annular protrusion 24 covers the upper half of the motor main body 22. The annular protrusion 24 is located outside the main air flow first discharge port 225 and inside the main air flow second discharge port 214. The lowest point of the annular protrusion 24 is lower than the highest point of the main air flow first discharge port 225, and a flow channel is formed between the annular protrusion 24 and the motor main body 22. This flow channel is used to provide a channel for the main air flow to enter the motor upper cover 21 from the main air flow first discharge port 225.

[0040] On the outer wall of the motor assembly 22, there is an air pipe 227. The air inlet channel 222 is located inside the air pipe 227.

[0041] The cooling air flow and the main air flow in the motor assembly 22 do not converge.

[0042] During operation, the cooling air flow enters through the air inlet hole 121 of the air guiding channel, and successively passes through the air guiding channel 12, the air outlet hole 122 of the air guiding channel, the first air guiding hole 211, the second air guiding hole 212, and the cooling air inlet 221, and then reaches the inside of the motor assembly 22 to continuously cool components such as the circuit board 226. The air flow after cooling components such as the circuit board 226 continues to flow through the air inlet channel 222, the air outlet of the air inlet channel 223, and converges with the main air flow. Finally, it is discharged from the vacuum source 2 along with the main air flow through the first main air outlet 225, the second main air outlet 214, and the third main air outlet 215; when the vacuum cleaner is used in a spraying environment, most of the water is blocked by the bottom of the groove 13 and flows out along the lower side surface of the groove 13, so that only a very small amount of water enters the air guiding channel 12 through the air inlet hole 121 of the air guiding channel; at this time, when the cooling air flow passes through the air guiding channel 12, the water condensed on the channel wall will flow downward along the drainage groove 1221 under the action of gravity; when it flows through the drainage groove 14, it enters the corresponding drainage groove 14 along the drainage part 15, and is discharged through the corresponding air inlet hole 121 of the air guiding channel, and then flows out along the corresponding groove 13; the water condensed on the inner cavity bottom of the upper surface of the motor upper cover 21 flows out from the first air guiding hole 211, and then flows out through the air guiding channel 12 and the air inlet hole 121 of the air guiding channel.

[0043] The cleaning device of the present invention includes a body; the body includes a frame 1, a vacuum source 2, and a collection box 3, wherein the vacuum source 2 and the collection box 3 are installed on the frame 1; the vacuum source 2 includes a motor upper cover 21, a motor mounting seat 23, and a motor body 22. The motor body 22 is arranged inside the motor mounting seat 23, the motor upper cover 21 is arranged above the motor body 22, and the motor upper cover 21 and the motor mounting seat 23 cooperate to completely cover the motor body 22; the cleaning device of the present invention further includes the above-mentioned vacuum source cooling system.

[0044] Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art:

[0045] In the vacuum source cooling system and cleaning device of the present invention, the cooling air flow enters through the air inlet hole 121 of the air guiding channel 12 of the air guiding channel, and successively passes through the air guiding channel 12, the air outlet hole 122 of the air guiding channel, the first air guiding hole 211, the second air guiding hole 212, and the cooling air inlet 221 to reach the inside of the motor assembly 22 to continuously cool components such as the circuit board 226. The air flow after cooling the components such as the circuit board 226 continues to flow through the air inlet channel 222 and the air outlet of the air inlet channel 223 to converge with the main air flow, and finally is discharged outside the body along with the main air flow through the first main air outlet 225, the second main air outlet 214, and the third main air outlet 215, realizing continuous cooling of components such as the circuit board 226 provided in the motor assembly 22 and ensuring the continuous operation of the vacuum cleaner; at the same time, the water vapor brought in by the cooling air flow can be discharged from the vacuum source 2 along the bottom of the inner cavity of the upper surface of the motor upper cover 21, the air guiding channel 12, and the air inlet hole 121 of the air guiding channel to ensure the safe operation of the motor main body 22.

[0046] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it, and cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A vacuum source cooling system, characterized in that: It includes an air guide channel air inlet hole provided on the frame, an air guide channel provided inside the frame, an air guide channel air outlet hole provided on the frame cover plate, a first air guide hole provided on the side of the motor upper cover, a second air guide hole provided inside the motor upper cover, an air inlet channel provided on the side wall of the motor main body, a main air flow inlet hole provided at the bottom of the motor main body, and a main air flow first exhaust port provided on the side wall of the motor main body, which are connected in sequence. The lowest point of the air guide channel air inlet hole on the frame is at least flush with the lowest point of the air guide channel inside the frame, and the lowest point of the air guide channel air outlet hole on the frame cover plate is higher than the lowest point of the air guide channel inside the frame; A plurality of inclined and parallel grooves are vertically and evenly distributed on the outer surface of the side wall of the frame, and air guide channel air inlet holes are respectively provided at the upper parts of the bottoms of each groove; the air guide channel air inlet holes are arranged parallel to the corresponding grooves; the lower sides of each groove are respectively inclined, and the height of the outer end is lower than that of the inner end; The air guide channel is arranged along the height direction of the frame and is in an inverted L shape. Its vertical section is vertically arranged, and the horizontal section is inclined, and the height is lower closer to the vertical section to facilitate water to flow from the horizontal section to the vertical section; The height of the vertical section of the air guide channel is at least 10 CM; The height of the bottom surface of the vertical section of the air guide channel is flush with the height of the lowermost air guide channel air inlet hole, so that the water accumulated in the air guide channel is completely discharged from the lowermost air guide channel air inlet hole; A convex ring is provided on the inner cavity bottom of the upper surface of the motor upper cover. The convex ring is located outside the second air guide hole and wraps the second air guide hole to block the water in the cooling air flow outside the convex ring; the inner cavity bottom of the upper surface of the motor upper cover between the second air guide hole and the first air guide hole is an inclined surface to drain the water blocked by the convex ring out of the first air guide hole along the inclined surface; The air inlet channel on the side wall of the motor main body is communicated with the main air flow inlet hole of the motor to enable the air flow to be discharged from the vacuum source together with the main air flow.

2. A cleaning device, comprising a body; the body includes a frame, a vacuum source and a collection box, wherein the vacuum source and the collection box are mounted on the frame; the vacuum source includes a motor upper cover, a motor mounting seat and a motor main body, the motor main body is disposed in the motor mounting seat, the motor upper cover is disposed above the motor main body, and the motor upper cover and the motor mounting seat cooperate to fix the motor main body, characterized in that: It includes the vacuum source cooling system as described in claim 1.

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