Motor heat dissipation structure of scrubber

Abstract

The invention discloses a motor heat dissipation structure of a scrubber, and relates to the technical field of heat dissipation, the motor heat dissipation structure of the scrubber comprises a machine body, a water cooling device, a filtering device, a heat dissipation device and a water drainage device; wherein the rear side of the machine body is fixedly connected with a handle, the interior of the machine body is fixedly connected with an alternating current motor, the rear side of the machine body is fixedly connected with a first baffle, and the output end of the alternating current motor is fixedly connected with a brush disc; wherein the water cooling device comprises a water tank, a water pipe, a frame I, a filter plate I and a fan, and the frame I is fixedly connected to the left side of the machine body; according to the motor heat dissipation structure of the floor washing machine, when water in the floor washing machine flows into the water pipe, water in the water pipe can conduct water cooling heat dissipation on the alternating current motor, when the draught fan is started, the draught fan can blow the water pipe and the alternating current motor, the heat exchange efficiency of the alternating current motor and the water pipe can be improved, and the phenomenon that the alternating current motor is overheated is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of heat dissipation, and in particular to a motor heat dissipation structure of a floor scrubber. Background Art

[0002] The motor heat dissipation structure of the floor scrubber is designed to ensure that the motor can be effectively cooled during long-term operation to prevent damage caused by overheating. Since the floor scrubber needs to operate continuously during operation, efficient heat dissipation not only improves motor performance, but also extends the service life of the equipment and ensures the cleaning effect.

[0003] The patent with the patent announcement number CN221263561U relates to a motor heat dissipation structure of a floor scrubber, including a housing, a drum with two ends connected at the front end of the housing, a first bracket on one side of the housing, one end of the drum is sealed and rotatably arranged on the first bracket, an air inlet channel is arranged on the first bracket, the air inlet channel is communicated with the inner cavity of the drum, a motor housing is arranged in the drum, a driving motor is arranged in the motor housing, a second bracket is arranged on the other side of the housing, the motor housing is provided with a hollow column, the hollow column is fixedly arranged on the second bracket, the other end of the drum is sealed and rotatably sleeved on the outer peripheral wall of the hollow column, a through hole is opened on the outer peripheral wall of the hollow column, the inner cavity of the hollow column is communicated with the inner cavity of the drum through the through hole, an air outlet channel is arranged on the second bracket, the air outlet channel is communicated with the inner cavity of the hollow column, an air suction pipe is arranged on the housing, and the air suction pipe is communicated with the air outlet channel. The patent provides a motor heat dissipation structure of a floor scrubber, which can reduce the temperature of the motor, thereby protecting the motor, extending the service life of the motor, and reducing costs.

[0004] In the above patent, the temperature of the motor can be reduced, thereby protecting the motor, extending the service life of the motor and reducing costs. However, when the motor is in a confined space, the temperature of the motor will rise rapidly. If the motor is in an overheated state for a long time, the high temperature environment may affect the life of the motor. It is difficult to use the water inside the floor scrubber to cool the motor, resulting in low water utilization inside the floor scrubber. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a motor heat dissipation structure for a floor scrubber, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a motor heat dissipation structure of a floor scrubber, comprising a body, and also comprising a water cooling device, a filtering device, a heat dissipation device and a water discharge device; wherein a handle is fixedly connected to the rear side of the body, an AC motor is fixedly connected to the inside of the body, a baffle is fixedly connected to the rear side of the body, and a brush plate is fixedly connected to the output end of the AC motor; wherein the water cooling device comprises a water tank, a water pipe, a frame, a filter plate and a fan, wherein the frame is fixedly connected to the left side of the body, the filter plate is fixedly connected to the inside of the frame, the fan is fixedly connected to the side of the filter plate close to the AC motor, the water tank is arranged inside the body, and the water pipe is fixedly connected to the bottom of the water tank.

[0007] According to the above technical scheme, the filtering device includes a wheel, a belt, a vertical plate, a rotating rod, a gear, a reciprocating screw, a slider, a connecting block, a scraper, a short rod one, a collecting box, a rotating plate, a spring one and a turbine. The wheel is rotatably connected to the left side of the body, the vertical plate is fixedly connected to the top of the body, the rotating rod rotates through the vertical plate, the gear is fixedly connected to the circumferential surface of the rotating rod, the reciprocating screw is rotatably connected to the inside of the frame one, the slider is threadedly connected to the circumferential surface of the reciprocating screw, the turbine is fixedly connected to the circumferential surface of the turbine, the connecting block is fixedly connected to the left side of the slider, the scraper is fixedly connected to the rear side of the connecting block, the short rod one is fixedly connected to the bottom of the connecting block, the collecting box is fixedly connected to the top of the body, the rotating plate is rotatably connected to the inside of the collecting box, and the spring one is arranged between the rotating plate and the collecting box.

[0008] According to the above technical solution, the wheel is connected to the rotating rod through a belt, the turbine is meshed with the gear, and the scraper is in contact with the filter plate.

[0009] According to the above technical solution, the heat dissipation device includes a long rod, a circular ring and a sponge. The circular ring slides through the water pipe, the slider is fixedly connected to the circular ring through the long rod, and the sponge is fixedly connected to the bottom of the circular ring.

[0010] According to the above technical solution, the heat dissipation device also includes a collecting ring, a second filter plate and a drainage rack, the collecting ring is fixedly connected to the circumferential surface of the water pipe, the second filter plate is fixedly connected to the top of the collecting ring, and the drainage rack is fixedly connected to the rear side of the collecting ring.

[0011] According to the above technical solution, the sponge is in contact with the water pipe, and the sponge is in contact with the second filter plate.

[0012] According to the above technical solution, the water discharge device includes a second frame, a second baffle, a triangular inclined block, a second spring and a vertical rod. The second frame is fixedly connected to the circumferential surface of the water pipe, the second baffle is slidably connected inside the second frame, the triangular inclined block is fixedly connected to the top of the second baffle, the second spring is arranged between the second frame and the second baffle, and the vertical rod is fixedly connected to the outer circumferential surface of the circular ring.

[0013] According to the above technical solution, the water discharge device also includes a drying box, a second short rod and a push block. The drying box is fixedly connected to the bottom of the inner wall of the machine body, the second short rod slides through the drying box, and the push block is fixedly connected to the rear side of the second short rod.

[0014] According to the above technical solution, circular holes are opened on the upper and lower surfaces of the second baffle plate, the vertical rod is in contact with the triangular inclined block, and the triangular inclined block is in contact with the second short rod.

[0015] The present invention provides a motor heat dissipation structure for a floor scrubber, which has the following beneficial effects: (1) This invention can utilize the water inside the floor scrubber to flow into the water pipe, whereby the water inside the water pipe will cool the AC motor. When the fan is started, the fan will blow toward the water pipe and the AC motor, thereby improving the heat exchange efficiency between the AC motor and the water pipe and preventing the AC motor from overheating.

[0016] (2) The invention allows the air outside the device to enter the interior of the machine body through the filter plate 1 to increase the air circulation. When the connecting block moves up and down, the connecting block will drive the scraper to move up and down. When the scraper moves up and down, the scraper will scrape the impurities adhered to the surface of the filter plate 1 downward to prevent the filter plate 1 from being blocked by impurities, which will cause the air inside the machine body to be unable to circulate, thereby causing the temperature of the AC motor to rise. When the short rod 1 continues to move downward, the short rod 1 will drive the rotating plate to rotate. When the rotating plate rotates, the impurities and dust on the top of the rotating plate will fall into the collection box for collection. When the short rod 1 moves upward, the short rod 1 will break away from the contact with the rotating plate. At this time, the rotating plate will return to its original position under the elastic force of the spring 1, which can effectively prevent the impurities inside the collection box from being blown up by the wind and causing pollution to the ground.

[0017] (3) In the present invention, the water in the water tank will flow into the water pipe. The water entering the water pipe will dissipate the heat of the AC motor. When the sponge moves up and down, the sponge will absorb the water droplets adhering to the surface of the water pipe, which can effectively prevent the water droplets from increasing and making the inside of the machine body wet, thereby affecting the operation of the AC motor. When the sponge continues to move downward, the filter plate 2 will squeeze the sponge. At this time, the water in the sponge will pass through the filter plate 2 and enter the collection ring, which can effectively keep the sponge in a dry state and improve the absorption efficiency of the sponge. When there is water in the collection ring, the water in the collection ring will flow out of the machine body through the drainage rack, which can effectively prevent the water in the collection ring from accumulating more and more.

[0018] (4) In this invention, after the water in the water pipe passes through the high temperature of the AC motor, the heat of the AC motor will be replaced by the water. At this time, the water temperature in the water pipe will become higher, which will reduce the heat dissipation efficiency. When the baffle plate 2 moves backward, the circular holes on the upper and lower sides of the baffle plate 2 will intersect with the water pipe. At this time, the water in the water pipe will flow into the brush plate, making it easier for the brush plate to clean the floor, thereby improving the cleaning effect of the brush plate. In addition, after the water with a higher temperature flows out, the water with a lower temperature in the water tank will flow into the water pipe for heat dissipation again. When the push block moves backward, the push block will cause the desiccant in the drying box to shake, which can effectively prevent the desiccant from being in a static state for a long time and causing agglomeration. In addition, when the desiccant moves, the desiccant can increase the contact area with the air, so that the desiccant has a better absorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the machine body of the present invention; Figure 3 This is a schematic diagram of the disassembled structure of the machine body of the present invention; Figure 4 This is a schematic diagram of the position structure of the filter plate 1 and the scraper of the present invention; Figure 5 This is a schematic diagram of the position structure of the rotating plate and the collecting box of the present invention; Figure 6 This is a schematic diagram of the water pipe and the circular ring position structure of the present invention; Figure 7 It is a schematic diagram of the structure of the sponge and the filter plate in two positions of the present invention; Figure 8 It is a schematic diagram of the structure of the triangular inclined block and the baffle in two positions of the present invention; Fig. 9 This is a schematic diagram of the position structure of the short rod 2 and the drying box of the present invention; Fig.10 It is a schematic diagram of the position structure of the short rod 2 and the push block of the present invention.

[0020] In the figure: 1, machine body; 2, handle; 3, brush plate; 4, baffle plate 1; 5, wheel; 6, belt; 7, vertical plate; 8, rotating rod; 9, frame 1; 10, filter plate 1; 11, gear; 12, reciprocating screw rod; 13, slider; 14, connecting block; 15, scraper; 16, short rod 1; 17, collection box; 18, rotating plate; 19, spring 1; 20, AC motor; 23, turbine; 24, fan; 2101, water tank; 2102, water pipe; 2103, long rod; 2104, ring; 2105, sponge; 2106, collecting ring; 2107, filter plate 2; 2108, drain rack; 2201, frame 2; 2202, baffle 2; 2203, triangular oblique block; 2204, spring 2; 2205, drying box; 2206, short rod 2; 2207, push block; 2208, vertical rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 10 An embodiment of the present invention is: a motor heat dissipation structure of a floor scrubber, comprising a body 1, and also comprising a water cooling device; wherein a handle 2 is fixedly connected to the rear side of the body 1, an AC motor 20 is fixedly connected inside the body 1, a baffle 4 is fixedly connected to the rear side of the body 1, and a brush plate 3 is fixedly connected to the output end of the AC motor 20; wherein the water cooling device comprises a water tank 2101, a water pipe 2102, a frame 9, a filter plate 10 and a fan 24, wherein the frame 9 is fixedly connected to the left side of the body 1, the filter plate 10 is fixedly connected inside the frame 9, the fan 24 is fixedly connected to a side of the filter plate 10 close to the AC motor 20, the water tank 2101 is arranged inside the body 1, the water pipe 2102 is fixedly connected to the bottom of the water tank 2101, and when the water inside the floor scrubber flows into the water pipe 2102, the water inside the water pipe 2102 will perform water cooling and heat dissipation on the AC motor 20.

[0023] When this embodiment is working: when the fan 24 is started, the fan 24 will draw the air outside the body 1 into the inside of the body 1, and by injecting water into the water tank 2101, the water injected into the water tank 2101 will flow to the water pipe 2102, and the water flowing into the water pipe 2102 can perform water cooling on the AC motor 20. When the fan 24 blows toward the inside of the body 1, the fan 24 will dissipate the heat for the water pipe 2102 and the AC motor, which can better perform heat exchange and prevent the AC motor 20 from being overheated and causing overload.

[0024] See also Figure 1-Figure 10 On the basis of the above embodiment, another embodiment of the present invention further includes a filtering device, a heat dissipation device and a water discharge device; the filtering device includes a wheel 5, a belt 6, a vertical plate 7, a rotating rod 8, a gear 11, a reciprocating screw rod 12, a slider 13, a connecting block 14, a scraper 15, a short rod 16, a collecting box 17, a rotating plate 18, a spring 19 and a turbine 23, the wheel 5 is rotatably connected to the left side of the body 1, the vertical plate 7 is fixedly connected to the top of the body 1, the rotating rod 8 rotates through the vertical plate 7, and the gear 11 is fixedly connected to the rotating rod 8 The reciprocating screw 12 is rotatably connected to the inside of the frame 9, the slider 13 is threadedly connected to the circumferential surface of the reciprocating screw 12, the turbine 23 is fixedly connected to the circumferential surface of the turbine 23, the connecting block 14 is fixedly connected to the left side of the slider 13, the scraper 15 is fixedly connected to the rear side of the connecting block 14, the short rod 16 is fixedly connected to the bottom of the connecting block 14, the collecting box 17 is fixedly connected to the top of the body 1, the rotating plate 18 is rotatably connected to the inside of the collecting box 17, and the spring 19 is arranged between the rotating plate 18 and the collecting box 17.

[0025] The heat dissipation device includes a long rod 2103, a ring 2104 and a sponge 2105. The ring 2104 slides through the water pipe 2102. The slider 13 is fixedly connected to the ring 2104 through the long rod 2103. The sponge 2105 is fixedly connected to the bottom of the ring 2104. The water inside the water tank 2101 will flow into the water pipe 2102. The water entering the water pipe 2102 will dissipate the heat of the AC motor 20. When the sponge 2105 moves up and down, the sponge 2105 will absorb the water droplets adhered to the surface of the water pipe 2102, which can effectively prevent the water droplets from increasing and causing the inside of the body 1 to become humid, thereby affecting the operation of the AC motor 20.

[0026] The heat dissipation device also includes a collecting ring 2106, a second filter plate 2107 and a drain frame 2108. The collecting ring 2106 is fixedly connected to the circumferential surface of the water pipe 2102, the second filter plate 2107 is fixedly connected to the top of the collecting ring 2106, and the drain frame 2108 is fixedly connected to the rear side of the collecting ring 2106. When there is water inside the collecting ring 2106, the water inside the collecting ring 2106 will flow out of the body 1 through the drain frame 2108, which can effectively prevent the water inside the collecting ring 2106 from accumulating more and more.

[0027] The sponge 2105 is in contact with the water pipe 2102 , and the sponge 2105 is in contact with the second filter plate 2107 . When the ring 2104 moves downward, the ring 2104 and the second filter plate 2107 will squeeze the sponge 2105 .

[0028] The water discharge device includes a frame 2201, a baffle 2202, a triangular inclined block 2203, a spring 2204 and a vertical rod 2208. The frame 2201 is fixedly connected to the circumferential surface of the water pipe 2102, the baffle 2202 is slidably connected to the inside of the frame 2201, the triangular inclined block 2203 is fixedly connected to the top of the baffle 2202, the spring 2204 is arranged between the frame 2201 and the baffle 2202, and the vertical rod 2208 is fixedly connected to the outer circumferential surface of the ring 2104. The water inside the water pipe 2102 will flow into the brush plate 3, making it easier for the brush plate 3 to clean the floor, improving the cleaning effect of the brush plate 3, and allowing the water with a lower temperature in the water tank 2101 to flow into the water pipe 2102 after the water with a rising temperature flows out, so as to dissipate heat again.

[0029] The water discharge device also includes a drying box 2205, a second short rod 2206 and a push block 2207. The drying box 2205 is fixedly connected to the bottom of the inner wall of the body 1, the second short rod 2206 slides through the drying box 2205, and the push block 2207 is fixedly connected to the rear side of the second short rod 2206. The push block 2207 will cause the desiccant inside the drying box 2205 to shake, which can effectively prevent the desiccant from being in a static state for a long time and causing agglomeration.

[0030] Baffle plate 2202 has circular holes on its upper and lower sides, vertical rod 2208 contacts triangular inclined block 2203, triangular inclined block 2203 contacts short rod 2206, and when the circular holes on the upper and lower sides of baffle plate 2202 intersect with water pipe 2102, water inside water pipe 2102 will flow out.

[0031] When the present embodiment is working: when the device moves, the wheel 5 will contact the ground, when the wheel 5 contacts the ground, the wheel 5 will rotate, when the wheel 5 rotates, the wheel 5 will drive the belt 6 to rotate, when the belt 6 rotates, the belt 6 will drive the rotating rod 8 to rotate, when the rotating rod 8 rotates, the rotating rod 8 will drive the gear 11 to rotate, when the gear 11 rotates, the gear 11 will drive the turbine 23 to rotate, when the turbine 23 rotates, the turbine 23 will drive the reciprocating screw 12 to rotate, when the reciprocating screw 12 rotates, the reciprocating screw 12 will drive the slider 13 to move up and down, when the slider 13 moves up and down, the slider 13 will drive the connecting block 14 to move up and down, when the connecting block 14 moves up and down, the connecting block 14 will drive the scraper 1 5 moves up and down. When the scraper 15 moves up and down, the scraper 15 will scrape the impurities adhered to the surface of the filter plate 10 downward to prevent the filter plate 10 from being blocked by the impurities. When the connecting block 14 moves downward, the connecting block 14 will drive the short rod 16 to move downward. When the short rod 16 moves downward, the short rod 16 will contact the rotating plate 18. When the short rod 16 continues to move downward, the short rod 16 will drive the rotating plate 18 to rotate. When the rotating plate 18 rotates, the impurities and dust on the top of the rotating plate 18 will fall into the inside of the collecting box 17. When the short rod 16 moves upward, the short rod 16 will be out of contact with the rotating plate 18. At this time, the rotating plate 18 will return to its original position under the elastic force of the spring 19, which can effectively prevent the impurities in the collecting box 17 from being blown up by the wind, thereby causing pollution to the ground.

[0032] The water in the water tank 2101 will flow into the water pipe 2102, and the water entering the water pipe 2102 will dissipate the heat of the AC motor 20. When the colder water pipe 2102 meets the hotter AC motor 20, the water vapor in the air will condense on the surface of the water pipe 2102. When the slider 13 moves up and down, the slider 13 will drive the long rod 2103 to move. When the long rod 2103 moves up and down, the long rod 2103 will drive the ring 2104 to move up and down. When the ring 2104 moves up and down, the ring 2104 will drive the sponge 2105 to move up and down. When the sponge 2105 moves up and down, the sponge 2105 will absorb the water drops adhered to the surface of the water pipe 2102, which can be The invention can effectively prevent the water droplets from increasing and making the inside of the machine body 1 moist, thereby affecting the operation of the AC motor 20. When the circular ring 2104 moves downward, the circular ring 2104 will drive the sponge 2105 to move downward. When the sponge 2105 moves downward, the sponge 2105 will contact the filter plate 2107. When the sponge 2105 continues to move downward, the filter plate 2107 will squeeze the sponge 2105. At this time, the moisture inside the sponge 2105 will pass through the filter plate 2107 and enter the collecting ring 2106. When there is water inside the collecting ring 2106, the water inside the collecting ring 2106 will flow out of the machine body 1 through the drainage frame 2108, which can effectively prevent the water inside the collecting ring 2106 from accumulating more and more.

[0033] When the circular ring 2104 moves downward, the circular ring 2104 will drive the vertical rod 2208 to move downward. When the vertical rod 2208 moves downward, the vertical rod 2208 will contact the triangular inclined block 2203. When the vertical rod 2208 continues to move downward, the vertical rod 2208 will drive the triangular inclined block 2203 to move backward. When the triangular inclined block 2203 moves backward, the triangular inclined block 2203 will drive the baffle plate 2202 to move backward. When the baffle plate 2202 moves backward, the circular holes on the upper and lower sides of the baffle plate 2202 will intersect with the water pipe 2102. At this time, the water in the water pipe 2102 will flow into the brush plate 3, making it easier for the brush plate 3 to clean the floor, thereby improving the cleaning efficiency of the brush plate 3. When the triangular oblique block 2203 moves backward, the triangular oblique block 2203 will contact with the short rod 2206. When the triangular oblique block 2203 continues to move backward, the triangular oblique block 2203 will drive the short rod 2206 to move backward. When the short rod 2206 moves backward, the short rod 2206 will drive the push block 2207 to move backward. When the push block 2207 moves backward, the push block 2207 will shake the desiccant inside the drying box 2205, which can effectively prevent the desiccant from being in a static state for a long time and causing agglomeration. When the desiccant moves, the desiccant can increase the contact area with the air, so that the desiccant has a better absorption effect.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A motor heat dissipation structure of a floor scrubber, comprising a body (1), characterized in that: It also includes a water cooling device, a filtering device, a heat dissipation device and a water discharge device; The rear side of the machine body (1) is fixedly connected to a handle (2), the interior of the machine body (1) is fixedly connected to an AC motor (20), the rear side of the machine body (1) is fixedly connected to a baffle plate 1 (4), and the output end of the AC motor (20) is fixedly connected to a brush plate (3); The water cooling device comprises a water tank (2101), a water pipe (2102), a frame one (9), a filter plate one (10) and a fan (24); the frame one (9) is fixedly connected to the left side of the machine body (1); the filter plate one (10) is fixedly connected inside the frame one (9); the fan (24) is fixedly connected to a side of the filter plate one (10) close to the AC motor (20); the water tank (2101) is arranged inside the machine body (1); and the water pipe (2102) is fixedly connected to the bottom of the water tank (2101).

2. The motor heat dissipation structure of a floor scrubber according to claim 1, characterized in that: The filtering device comprises a wheel (5), a belt (6), a vertical plate (7), a rotating rod (8), a gear (11), a reciprocating screw rod (12), a slider (13), a connecting block (14), a scraper (15), a short rod (16), a collecting box (17), a rotating plate (18), a spring (19) and a turbine (23), wherein the wheel (5) is rotatably connected to the left side of the machine body (1), the vertical plate (7) is fixedly connected to the top of the machine body (1), the rotating rod (8) rotatably penetrates the vertical plate (7), the gear (11) is fixedly connected to the circumferential surface of the rotating rod (8), and the reciprocating screw rod (12) is rotatably connected to the frame. The inside of the frame (9), the slider (13) is threadedly connected to the circumferential surface of the reciprocating screw (12), the turbine (23) is fixedly connected to the circumferential surface of the turbine (23), the connecting block (14) is fixedly connected to the left side of the slider (13), the scraper (15) is fixedly connected to the rear side of the connecting block (14), the short rod (16) is fixedly connected to the bottom of the connecting block (14), the collecting box (17) is fixedly connected to the top of the machine body (1), the rotating plate (18) is rotatably connected to the inside of the collecting box (17), and the spring (19) is arranged between the rotating plate (18) and the collecting box (17).

3. The motor heat dissipation structure of a floor scrubber according to claim 2, characterized in that: The wheel (5) is connected to the rotating rod (8) via a belt (6), the turbine (23) is meshed with the gear (11), and the scraper (15) is in contact with the filter plate (10).

4. The motor heat dissipation structure of a floor scrubber according to claim 3, characterized in that: The heat dissipation device comprises a long rod (2103), a circular ring (2104) and a sponge (2105); the circular ring (2104) slides through the water pipe (2102); the sliding block (13) is fixedly connected to the circular ring (2104) via the long rod (2103); and the sponge (2105) is fixedly connected to the bottom of the circular ring (2104).

5. The motor heat dissipation structure of a floor scrubber according to claim 4, characterized in that: The heat dissipation device also includes a collecting ring (2106), a second filter plate (2107) and a drainage rack (2108), wherein the collecting ring (2106) is fixedly connected to the circumferential surface of the water pipe (2102), the second filter plate (2107) is fixedly connected to the top of the collecting ring (2106), and the drainage rack (2108) is fixedly connected to the rear side of the collecting ring (2106).

6. The motor heat dissipation structure of a floor scrubber according to claim 5, characterized in that: The sponge (2105) is in contact with the water pipe (2102), and the sponge (2105) is in contact with the second filter plate (2107).

7. The motor heat dissipation structure of a floor scrubber according to claim 6, characterized in that: The water discharge device comprises a second frame (2201), a second baffle (2202), a triangular inclined block (2203), a second spring (2204) and a vertical rod (2208); the second frame (2201) is fixedly connected to the circumferential surface of the water pipe (2102); the second baffle (2202) is slidably connected to the inside of the second frame (2201); the triangular inclined block (2203) is fixedly connected to the top of the second baffle (2202); the second spring (2204) is arranged between the second frame (2201) and the second baffle (2202); and the vertical rod (2208) is fixedly connected to the outer circumferential surface of the ring (2104).

8. The motor heat dissipation structure of a floor scrubber according to claim 7, characterized in that: The water discharge device further comprises a drying box (2205), a second short rod (2206) and a push block (2207); the drying box (2205) is fixedly connected to the bottom of the inner wall of the machine body (1); the second short rod (2206) slides through the drying box (2205); and the push block (2207) is fixedly connected to the rear side of the second short rod (2206).

9. The motor heat dissipation structure of a floor scrubber according to claim 8, characterized in that: The second baffle plate (2202) is provided with circular holes on the upper and lower surfaces, the vertical rod (2208) is in contact with the triangular inclined block (2203), and the triangular inclined block (2203) is in contact with the second short rod (2206).

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