CN111725947A - A motor with heat dissipation and dust removal function - Google Patents

Abstract

The invention relates to the technical field of motor heat dissipation, in particular to a motor with heat dissipation and dust removal functions, which comprises a rear shell, a front shell and a stator shell, wherein the front shell and the rear shell are respectively arranged at the front end and the rear end of the stator shell; a filtering area, a water replenishing area, an evaporating area and a negative pressure space are arranged in the stator shell; the outer side of the stator shell is soaked in water, a filtering area, a water replenishing area, an evaporating area and a negative pressure space are arranged in the stator shell, negative pressure is produced in the negative pressure space by utilizing a centrifugal impeller connected to a rotor, the evaporating area close to a stator winding is easy to evaporate, efficient heat absorption is carried out, evaporated gas flows through the rotor again to carry hot gas out, heat extraction is carried out again, an air inlet pipeline removes dust through water, dust accumulation in the motor is prevented, and a reliable heat dissipation effect is guaranteed.

Description

A motor with heat dissipation and dust removal function

technical field

The invention relates to the technical field of motor heat dissipation, in particular to a motor with heat dissipation and dust removal functions.

Background technique

The motor is mainly composed of a stator and a rotor. The direction of the energized wire in the magnetic field is related to the direction of the current and the direction of the magnetic field line. The working principle of the motor is that the force of the magnetic field on the current causes the motor to rotate. Motors are widely used in all walks of life. When factories and enterprises use motors for mechanical equipment, they often work for a long time, causing a lot of heat to be generated in the motor.

At present, the cooling of motors is generally air cooling and water cooling. Air cooling uses its own cooling fan to cool the motor casing, and the cooling effect is generally poor. Water cooling generally uses cooling water channels for heat exchange. Larger, the motor power can be made large, but the disadvantage is that water source and pipeline are required. The longer the circulating water pipeline, the better the heat dissipation efficiency, but the higher the cost, the complex structure and the difficult maintenance.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a motor with heat dissipation and dust removal function to solve the problems raised in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions: a motor with heat dissipation and dust removal function, including a rear casing, a front casing and a stator casing, the front casing and the rear casing are respectively installed on the stator casing. At the front and rear ends, the tail of the rear casing is provided with a shroud, the interior of the shroud is provided with a centrifugal impeller connected to the rotor, the inner side of the stator shell is equipped with a stator coil; There are a filter area, a water replenishment area, an evaporation area and a negative pressure space, a water tank is arranged above the stator shell, the water tank is communicated with the filter area, and the negative pressure space is communicated with the front casing through an air supply duct , the evaporation area is located on the periphery of the stator coil, the water replenishment area is located between the filter area and the evaporation area, and the filter area is communicated with the outside air through an air intake pipe.

The rear casing, the front casing and the stator casing are sealed and connected by bolts and washers. When the motor starts, the centrifugal impeller rotates with the rotation of the rotor. Negative pressure generates high pressure at the edge of the shroud. The centrifugal impeller discharges the air in the space formed by the rear casing, the front casing and the stator casing to the outside. A negative pressure environment is formed in the space, and the negative pressure space in the stator casing is connected with the space in the rear casing, the front casing and the stator casing, and a negative pressure environment is also formed. In this case, the water in the evaporation area is absorbed on the one hand. The heat generated by the stator coil, on the one hand, is in a negative pressure environment, the evaporation temperature of the water is reduced, which is conducive to evaporation and heat dissipation, and the evaporated gas enters the space formed by the rear casing, the front casing and the stator casing, and the rotor and the The heat generated around the stator coil is brought to the centrifugal impeller and discharged by the centrifugal impeller, forming a good cooling effect. There is no need for water replenishment and heat exchange from the flowing water source. It is only necessary to use a fixed water source to supplement the evaporated water, and the air is drawn from the inside of the motor by means of ventilation, and the heat can be taken out from the inside of the motor to increase the heat removal efficiency.

Preferably, the centrifugal impeller includes an annular seat, a limiting protrusion, a rotating shaft and a blade, the annular seat is fixed on the outer wall of the motor shaft on the rotor, and the outer wall of the annular seat is provided with a number of centrally symmetrically distributed Limiting groove, the blade is hinged in the limiting groove through a rotating shaft, and the outer wall of the annular seat and the outer edge of the limiting groove are provided with the limiting protrusion for limiting the position of the blade , the centrifugal impeller is located on the inner side of the shroud, the shroud communicates with the rear casing through an air intake slot, the shroud communicates with the outside air through an exhaust slot, and the exhaust slot on the periphery of the blade.

Since the motor may have forward and reverse operations, in order to enable the centrifugal impeller to generate negative pressure during the forward and reverse process of the motor, the blades are set to be flipped at a certain angle. When the rotor rotates counterclockwise, due to inertia, the blades The end close to the ring seat is first forced to follow the rotation, and because the shaft is hinged in the limit groove, and then the end of the blade starts to follow the rotation, so the blade rests on the limit protrusion on the opposite side of the movement direction to limit the position , Among them, the end of the blade has a certain weight, and the middle part of the blade has toughness, which can form a certain bending, so that a strong exhaust capacity can be formed at the air inlet groove, and the air in the rear casing is removed from the air inlet groove. It enters between the blades, is thrown out by the blades, and is discharged from the exhaust groove; when the rotor rotates clockwise, the same, due to inertia, the end of the blade close to the annular seat is first forced to follow the rotation, and because the shaft is hinged in In the limit slot, and then the end of the blade starts to follow the rotation, but the difference is that the inclination direction of the blade is opposite to the previous one, but it also acts as an outward exhaust gas, so that when the motor is forward and reversed, it can be realized. , can form a negative pressure effect.

Preferably, the limiting groove is in the shape of a fan, and the vane can move in the limiting groove along the circumferential direction of the annular seat.

That is to say, the blade can be centered on the rotating shaft and swing along the center point within the width of the limit slot. The larger the swing range, the greater the inclination angle of the blade. The toughness can be deformed. The inclination angle of the blade at the air inlet groove is between 40-50°. The gas entering from the air inlet groove is discharged to the end of the blade, and then a rounded corner in the direction of the air guide hood is close to the direction of the air outlet groove. The arc surface guides the gas to the direction of the rear casing.

Preferably, the stator casing includes a casing, a filter plate, a separator and a stator winding casing, the separator is located outside the stator winding casing, the filter plate is located between the casing and the separator, and the casing There is a certain amount of water between the stator winding shell, the stator coil is installed on the inner side of the stator winding shell, and several heat storage slots are formed on the outer side of the stator winding shell. iron sand.

The filter area, the water replenishment area, the evaporation area and the negative pressure space are all interlayer spaces between the outer casing and the stator winding shell. Water is injected in the middle, the space where the water is not immersed forms a negative pressure space, the water layer in the evaporation area is thin, and it is close to the heat source (stator winding shell), that is, the water in the evaporation area evaporates quickly. After evaporation, water is replenished from the water replenishment channel to the evaporation area from the water replenishment area. At the same time, the bubbles generated by evaporation in the evaporation area will take away the surrounding air bubbles and heat during the upward movement, and enter the motor from the air supply duct. In addition, due to the layered non-uniform medium structure such as the evaporation area and the partition, it can play a good sound insulation effect and reduce the noise generated by the entire motor during the operation.

Preferably, the partition plate includes a semi-arc-shaped first part and a second part, the first part and the second part are symmetrically distributed, the bottom of the first part and the second part is provided with a water replenishing channel, and the first part and the second part are provided with a water replenishing channel. The upper part of the two parts extends to above the water surface, and the interior of the partition plate is provided with a cavity.

In order to ensure that the heat between the water replenishment area and the evaporation area will not be conducted to each other, or to reduce the amount of heat transfer, and to ensure that the water in the evaporation area can evaporate quickly, the first part and the second part of the semi-arc shape are used to surround the evaporation area. There is a replenishment channel at the bottom. When a part of the water in the evaporation area evaporates, the water in the replenishment area will be replenished from the replenishment channel.

Preferably, a filter bag is provided at the lower part of the filter plate, an air inlet pipe is arranged in the filter area, one end of the air inlet pipe extends out of the filter area, and the other end of the air inlet pipe is provided with a floating ball, so The floating ball is immersed in water, the floating ball has a certain buoyancy, and the floating ball is provided with an exhaust hole.

Since the evaporation gas is not enough, an intake pipe is set up. The intake pipe is a hard pipe made of plastic or aluminum and has a certain weight, while the floating ball is a ball made of foam or plastic with a certain buoyancy and a vent hole. In a natural state, the floating ball will sink to a certain height below the water surface, where the deep water pressure is the pressure difference between the atmospheric pressure and the negative pressure space. Exhaust, and use water to dedust the incoming air. The filter bag can collect the dust and clean it after a certain period of time. The exhausted air enters the negative pressure space, and then enters the motor along the air supply duct.

Preferably, the water tank and the filter area are connected by a water supply pipeline, a connecting rod is hinged on the inner top wall of the outer casing, and a floating block hinged with one end of the connecting rod is arranged in the evaporation area, so The other end of the connecting rod is hinged with the air intake pipe, and the water supply pipeline is also provided with a valve for controlling the on/off of the water supply pipeline.

In order to control the amount of intake air according to the temperature of the evaporation area, when the temperature of the evaporation area is high, it is in a state of high heat dissipation. At this time, the amount of evaporated gas is large, and the required heat dissipation is also large, so it is necessary to increase the negative pressure state, Make the water in the evaporation area evaporate faster and reduce the entry of external air, therefore, when the water temperature in the evaporation area is high, the float floats up, and one end of the air intake pipe is lowered through the connecting rod, thus increasing the pressure at the float ball, negative The negative pressure in the pressure space is lower, the entry of external air is more difficult, the evaporation of water in the evaporation area is easier, and a better heat dissipation effect is achieved. When it reaches a certain height, it triggers the valve on the water supply pipeline, so that the water in the water tank is replenished into the interlayer until the water level rises to the predetermined position. It is only necessary to regularly observe the amount of water in the water tank to replenish water. At the same time, the water tank starts up. With the function of isolation and radiation protection, it can avoid the heat radiation generated by the external heat source to the motor and cause the rapid temperature rise.

Preferably, the floating block includes a plurality of heat-conducting plates arranged in parallel, a heat-conducting gap is provided between the heat-conducting plates, a connecting rod hinged with the connecting rod is provided on the heat-conducting plate, and a heat-conducting gap is provided in the heat-conducting gap. There are expansion discs that are thermally expanded.

The expansion plate is a sac-like structure, which expands after being heated. When the expansion plate expands, the buoyancy of the whole float naturally increases and floats upward. The heat-conducting plate is metal, which can balance the buoyancy.

Preferably, heat dissipation fins are provided on the upper surface of the air supply duct, the negative pressure space is communicated with the front casing through an air supply duct, and the air supply duct is located on one side of the heat dissipation fin.

The use of heat dissipation fins can increase the heat dissipation of the shell on the one hand, and on the other hand, it can keep the temperature of the air supply duct from dropping too much, so that the gas can smoothly enter the motor from the air supply duct, and the temperature inside the motor is high, so the gas is still The way the gas passes around the rotor and takes away the surrounding heat, no moisture is produced.

Preferably, a partition screen is provided on the outside of the heat storage tank, and the aperture of the partition screen is larger than the particle size of the iron sand.

The use of iron sand can increase the magnetic force generated by the stator coil on the one hand, and increase the heat exchange area with water on the other hand, so that the water in the heat storage tank can quickly absorb heat and evaporate to achieve efficient heat dissipation. flow.

Compared with the prior art, the beneficial effects of the present invention are:

In the invention, the outer side of the stator casing is immersed in water, and the stator casing is provided with a filter area, a water replenishment area, an evaporation area and a negative pressure space, and the centrifugal impeller connected to the rotor is used to create a negative pressure in the negative pressure space, so that the windings close to the stator windings are made of negative pressure. The evaporation area is easy to evaporate and absorb heat efficiently. The evaporated gas flows through the rotor to take out the hot gas for heat removal again, and the intake pipe is dedusted by water, which can prevent dust accumulation inside the motor and ensure reliable operation. heat radiation.

Description of drawings

1 is a schematic structural diagram of a motor with heat dissipation and dust removal function according to the present invention;

Fig. 2 is the cross-sectional structure schematic diagram of A-A in Fig. 1;

3 is a schematic structural diagram of a floating block in a motor with heat dissipation and dust removal function according to the present invention;

4 is a schematic structural diagram of a floating ball in a motor with heat dissipation and dust removal function according to the present invention;

Fig. 5 is the structural representation at place B in Fig. 2;

FIG. 6 is a schematic structural diagram of a centrifugal impeller in a motor with a heat dissipation and dust removal function according to the present invention.

Labels in the figure: 1, rear casing; 11, rotor; 111, motor shaft; 12, stator coil; 2, front casing; 3, stator casing; 301, filter area; 302, water replenishment area; 303, evaporation area; 304, negative pressure space; 31, cooling fins; 32, air supply pipe; 33, shell; 34, filter plate; 341, filter bag; 35, partition plate; 351, water supply channel; 352, cavity; 36, stator Winding shell; 361, heat storage tank; 362, iron sand; 363, separator; 4, water tank; 41, water supply pipeline; 42, valve; 5, centrifugal impeller; 51, annular seat; 511, limit slot; 52, limit Position bulge; 53, shaft; 54, vane; 6, shroud; 601, air inlet slot; 602, exhaust slot; 7, air inlet pipe; 71, floating ball; 711, exhaust hole; 81, floating block ; 811, connecting rod; 812, heat conduction plate; 813, heat conduction gap; 82, connecting rod; 83, expansion plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Embodiment: As shown in Figures 1 to 6, a motor with heat dissipation and dust removal function includes a rear casing 1, a front casing 2 and a stator casing 3, and the front casing 2 and the rear casing 1 are respectively installed in the stator casing 3. At the front and rear ends of the rear casing 1, a shroud 6 is installed at the tail of the rear casing 1. The inner part of the shroud 6 is provided with a centrifugal impeller 5 connected to the rotor 11, and a stator coil 12 is installed on the inner side of the stator casing 3; There is a filter area 301, a water replenishment area 302, an evaporation area 303 and a negative pressure space 304, a water tank 4 is arranged above the stator shell 3, the water tank 4 is communicated with the filter area 301, and the negative pressure space 304 is connected to the front casing through the air supply pipe 32. 2 is connected, the evaporation area 303 is located at the periphery of the stator coil 12, the water replenishment area 302 is located between the filter area 301 and the evaporation area 303, and the filter area 301 communicates with the outside air through the air intake pipe 7.

The rear casing 1, the front casing 2 and the stator casing 3 are sealed and connected by bolts and washers. When the motor starts, the centrifugal impeller 5 rotates with the rotation of the rotor 11. During the rotation, the centrifugal impeller 5 is in the guide. Negative pressure is generated in the middle of the flow hood 6, and high pressure is generated at the edge of the flow hood 6. The centrifugal impeller 5 discharges the air in the space formed by the rear casing 1, the front casing 2 and the stator casing 3 to the outside. A negative pressure environment is formed in the spaces in the rear casing 1, the front casing 2 and the stator casing 3, while the negative pressure space 304 in the stator casing 3 is connected to the space in the rear casing 1, the front casing 2 and the stator casing 3. In this way, the water in the evaporation area 303 absorbs the heat generated by the stator coil 12 on the one hand, and on the other hand is in a negative pressure environment, the evaporation temperature of the water is reduced, which is conducive to evaporation and heat dissipation, and the evaporated water The gas enters the space formed by the rear casing 1, the front casing 2 and the stator casing 3 again, and brings the heat generated around the rotor 11 and the stator coil 12 to the centrifugal impeller 5, and is discharged by the centrifugal impeller 5, forming a good Compared with the cooling method using circulating water channels in the prior art, this cooling method is more targeted for heat absorption, and does not require water replenishment and heat exchange from flowing water sources, and only needs to use fixed water sources to replenish evaporated water. That is, and the air is drawn out from the inside of the motor by means of ventilation, and the heat can be taken out from the inside of the motor to increase the heat removal efficiency.

Specifically, as shown in FIG. 6 , the centrifugal impeller 5 includes an annular seat 51 , a limiting protrusion 52 , a rotating shaft 53 and a blade 54 , the annular seat 51 is fixed on the outer wall of the motor shaft 111 on the rotor 11 , and the outer wall of the annular seat 51 is provided with There are several limit slots 511 symmetrically distributed in the center. The blades 54 are hinged in the limit slots 511 through the rotating shaft 53. The outer wall of the annular seat 51 and the outer edge of the limit slots 511 are provided with limiters for limiting the positions of the blades 54. The protrusion 52, the centrifugal impeller 5 is located on the inner side of the shroud 6, the shroud 6 is communicated with the rear casing 1 through the air inlet slot 601, the shroud 6 is communicated with the outside air through the exhaust slot 602, and the exhaust slot 602 is located in the rear casing 1. The periphery of the blade 54 .

Since the motor may have forward and reverse operations, in order to enable the centrifugal impeller 5 to generate negative pressure during the forward and reverse operation of the motor, the blades 54 are set to be able to flip at a certain angle. When the rotor 11 rotates counterclockwise, due to Inertia, the end of the blade 54 close to the annular seat 51 is first forced to follow the rotation, and because the rotating shaft 53 is hinged in the limit groove 511, and then the end of the blade 54 starts to follow the rotation, so the blade 54 is on the opposite side of the movement direction. On the limiting protrusion 52, the limit is performed, wherein the end of the blade 54 has a certain weight, and the middle part of the blade 54 has toughness, which can form a certain bending, so that a strong exhaust can be formed at the air inlet groove 601. The air in the rear casing 1 enters between the blades 54 from the air inlet slot 601, is thrown out by the blades 54, and is discharged from the exhaust slot 602; when the rotor 11 rotates clockwise, the same, because Inertia, the end of the blade 54 close to the annular seat 51 is first forced to follow the rotation, and because the rotating shaft 53 is hinged in the limit groove 511, and then the end of the blade 54 starts to follow the rotation, but the difference is that the inclination direction of the blade 54 On the contrary, but they also play the role of exhaust gas, so that when the motor is reversed, the negative pressure effect can be formed.

Specifically, as shown in FIG. 6 , the limiting groove 511 is in the shape of a fan, and the blade 54 can move in the limiting groove 511 along the circumferential direction of the annular seat 51 .

That is to say, the blade 54 can be centered on the rotating shaft 53, and swing along the center point within the width of the limit slot 511. Furthermore, since the toughness of the blade 54 itself can be deformed, the inclination angle of the blade 54 at the air inlet groove 601 is between 40-50°, and the gas entering from the air inlet groove 601 is discharged to the end of the blade 54, and then the guide The cover 6 is close to a rounded arc surface in the direction of the exhaust groove 602 , and guides the gas to the direction of the rear casing 1 .

Specifically, as shown in FIG. 2 , the stator casing 3 includes a casing 33 , a filter plate 34 , a separator 35 and a stator winding casing 36 , the separator 35 is located outside the stator winding casing 36 , and the filter plate 34 is located on the casing 33 and the diaphragm 35 There is a certain amount of water between the outer casing 33 and the stator winding shell 36, the stator coil 12 is installed on the inner side of the stator winding shell 36, and a number of heat storage slots 361 are formed on the outer side of the stator winding shell 36. There is iron sand 362.

The filter area 301, the water replenishment area 302, the evaporation area 303 and the negative pressure space 304 are all interlayer spaces between the outer casing 33 and the stator winding shell 36. Out of the water replenishment area 302 and the evaporation area 303, water is injected into the interlayer space, and the space not submerged by the water forms a negative pressure space 304. The water layer in the evaporation area 303 is thin and close to the heat source (stator winding shell 36), namely The water in the evaporation area 303 evaporates quickly. When the water in the evaporation area 303 evaporates, water is replenished from the water replenishment channel 351 to the evaporation area 303 from the water replenishment area 302. At the same time, the bubbles generated by the evaporation in the evaporation area 303 move upward. , it will take away the surrounding air bubbles and heat, and enter the motor from the air supply duct 32, and due to the layered uneven medium structure of the evaporation area 303, the baffle 35, etc., it can play a good sound insulation effect. The noise generated by the entire motor during operation.

Specifically, as shown in FIG. 2 and FIG. 5 , the partition 35 includes a semi-arc-shaped first part and a second part, the first part and the second part are symmetrically distributed, and the bottom of the first part and the second part is provided with a water replenishing channel 351, and the first part and the second part are symmetrically distributed. The upper part of one part and the second part extends above the water surface, and a cavity 352 is provided inside the partition plate 35 .

In order to ensure that the heat between the water replenishment area 302 and the evaporation area 303 will not be conducted mutually, or to reduce the amount of heat transfer, and to ensure that the water in the evaporation area 303 can be evaporated quickly, the first part and the second part of the semi-arc shape are used to separate the evaporation area 303 When surrounded, there is a replenishing water channel 351 at the bottom. When a part of the water in the evaporation area 303 evaporates, the water in the replenishing area 302 is replenished from the replenishing channel 351 .

Specifically, as shown in FIG. 2 and FIG. 4 , a filter bag 341 is provided at the lower part of the filter plate 34 , an air intake pipe 7 is provided in the filter area 301 , one end of the air intake pipe 7 extends out of the filter area 301 , and the other end of the air intake pipe 7 A floating ball 71 is provided. The floating ball 71 is immersed in water, and the floating ball 71 has a certain buoyancy. The floating ball 71 is provided with an exhaust hole 711 .

Since the evaporation gas is not enough, an intake pipe 7 is provided. The intake pipe 7 is a hard pipe made of plastic or aluminum and has a certain weight, while the floating ball 71 is made of foam or plastic and has a certain buoyancy with an exhaust hole. For the ball of 711, in the natural state, the floating ball 71 will sink to a certain height below the water surface, where the deep water pressure is the pressure difference between the atmospheric pressure and the negative pressure space 304. When the pressure difference is met, the air intake pipe 7 will enter. The air is discharged from the exhaust hole 711, and the incoming air is dedusted with water. The filter bag 341 can collect the dust, and it can be cleaned after a certain period of time. The exhausted air enters the negative pressure space 304, and then Enter the motor along the air supply duct 32 .

Specifically, as shown in FIG. 2 , the water tank 4 and the filter area 301 are connected by a water supply pipe 41 , a connecting rod 82 is hinged on the inner top wall of the outer casing 33 , and a float hinged with one end of the connecting rod 82 is arranged in the evaporation area 303 In the block 81, the other end of the connecting rod 82 is hinged with the intake pipe 7, and the water supply pipe 41 is also provided with a valve 42 for controlling the on/off of the water supply pipe 41.

In order to control the amount of intake air according to the temperature of the evaporation area 303, when the temperature of the evaporation area 303 is high, it is in a state of high heat dissipation. At this time, the amount of evaporated gas is large, and the required heat dissipation is also large, so it is necessary to increase the negative pressure In this state, the water in the evaporation area 303 evaporates faster, and the entry of outside air is reduced. Therefore, when the water temperature in the evaporation area 303 is high, the floating block 81 floats up, and one end of the air intake pipe 7 is lowered through the connecting rod 82, thus increasing the The pressure at the floating ball 71 and the negative pressure in the negative pressure space 304 are lower, it is more difficult for the outside air to enter, the evaporation of water in the evaporation area 303 is easier, and a better heat dissipation effect is achieved. When the water level drops, the air intake pipe 7 drops accordingly, and when it reaches a certain height, it triggers the valve 42 on the water supply pipe 41, so that the water in the water tank 4 is replenished into the interlayer until the water level rises to a predetermined position. The amount of water in the water tank 4 can be observed and water can be replenished. At the same time, the water tank 4 plays the role of isolation and radiation protection, which can prevent the external heat source from generating heat radiation to the motor and causing rapid temperature rise.

Specifically, as shown in FIG. 3 , the floating block 81 includes a plurality of heat-conducting plates 812 arranged in parallel, and a heat-conducting gap 813 is arranged between the heat-conducting plates 812 . The gap 813 is provided with an expansion disk 83 that is expanded by heat.

The expansion plate 83 is a sac-like structure, which expands after being heated. When the expansion plate 83 expands, the buoyancy of the whole float 81 becomes larger and floats upward. The heat conduction plate 812 is metal, which can balance the buoyancy.

Specifically, as shown in FIG. 1-2 , the upper surface of the air supply duct 32 is provided with cooling fins 31 , and the negative pressure space 304 is communicated with the front casing 2 through the air supply duct 32 , and the air supply duct 32 is located on the cooling fin 31 . side.

Using the heat dissipation fins 31 can increase the heat dissipation of the shell on the one hand, and on the other hand, it can keep the temperature of the air supply duct 32 from dropping too much, so that the gas can smoothly enter the motor from the air supply duct 32, and the temperature inside the motor is high, so The gas still passes around the rotor 11 in the form of gas, and takes away the surrounding heat without generating moisture.

Specifically, as shown in FIG. 5 , the outer side of the heat storage tank 361 is provided with a separator 363 , and the aperture of the separator 363 is larger than the particle size of the iron sand 362 .

The use of iron sand 362 can increase the magnetic force generated by the stator coil 12 on the one hand, and increase the heat exchange area with water on the other hand, so that the water in the heat storage tank 361 can quickly absorb heat and evaporate to achieve efficient heat dissipation. The flow of iron sand 362 can be restricted.

Working principle: The centrifugal impeller 5 discharges the air in the space formed by the rear casing 1, the front casing 2 and the stator casing 3 to the outside, and forms the air in the space formed in the rear casing 1, the front casing 2 and the stator casing 3. The negative pressure environment is created, and the negative pressure space 304 in the stator casing 3 is communicated with the space in the rear casing 1, the front casing 2 and the stator casing 3, and a negative pressure environment is also formed. In this case, the water in the evaporation area 303 On the one hand, it absorbs the heat generated by the stator coil 12. On the other hand, in a negative pressure environment, the evaporation temperature of the water is reduced, which is conducive to evaporation and heat dissipation. The evaporated gas enters the rear casing 1, the front casing 2 and the stator casing 3. The space formed brings the heat generated around the rotor 11 and the stator coil 12 to the centrifugal impeller 5 and is discharged by the centrifugal impeller 5 to form a good cooling and heat dissipation effect. During the reversal process, the centrifugal impeller 5 can generate negative pressure, and the blade 54 is set to be able to flip at a certain angle. When the rotor 11 rotates counterclockwise, due to inertia, the end of the blade 54 close to the annular seat 51 is first forced to follow. Rotation, and because the shaft 53 is hinged in the limiting groove 511, and then the end of the blade 54 starts to follow the rotation, so the blade 54 leans on the limiting protrusion 52 on the opposite side of the movement direction to limit the position. The end of the blade 54 has a certain weight, and the middle part of the blade 54 has toughness, which can form a certain bending, so that a strong exhaust capacity can be formed at the air inlet groove 601, and the air in the rear casing 1 can be discharged from the air inlet groove 601. When the rotor 11 rotates clockwise, the same, due to inertia, the end of the blade 54 close to the annular seat 51 is first forced to follow Rotate, and because the rotating shaft 53 is hinged in the limiting groove 511, then the end of the blade 54 starts to follow the rotation, but the difference is that the inclination direction of the blade 54 is opposite to that just now, but it is also used to exhaust the gas. In this way, the negative pressure effect can be formed when the motor is forward and reversed. The filter area 301, the water replenishment area 302, the evaporation area 303 and the negative pressure space 304 are all interlayer spaces between the outer casing 33 and the stator winding casing 36. , the filter area 301 and the water replenishment area 302 are separated by the filter plate 34, the water replenishment area 302 and the evaporation area 303 are separated by the partition plate 35, and water is injected into the interlayer space, and the space where the water is not immersed forms the negative pressure space 304, and the evaporation area The water layer in 303 is thin and close to the heat source (stator winding shell 36), that is, the water in the evaporation area 303 evaporates quickly. Water is replenished in the evaporation area 303, and the bubbles generated by evaporation in the evaporation area 303 will take away the surrounding air bubbles and heat during the upward movement, and enter the motor from the air supply duct 32. The uneven medium structure of 35 and other layers can play a good sound insulation effect and reduce the noise generated by the entire motor during operation. The temperature of 303 controls the amount of intake air. When the temperature of the evaporation area 303 is high, it is in a state of high heat dissipation. At this time, the amount of evaporated gas is large, and the required heat dissipation is also large. Therefore, it is necessary to increase the negative pressure state to make evaporation. The water in the zone 303 evaporates faster and reduces the entry of external air. Therefore, when the water temperature in the evaporation zone 303 is high, the float 81 floats up, and one end of the air intake pipe 7 is lowered through the connecting rod 82, thus increasing the float 71 The pressure of the negative pressure in the negative pressure space 304 is lower, it is more difficult for the outside air to enter, the evaporation of water in the evaporation area 303 is easier, and a better heat dissipation effect is achieved. The air intake pipe 7 descends accordingly, and when it reaches a certain height, it triggers the valve 42 on the water supply pipe 41, so that the water in the water tank 4 is replenished into the interlayer, until the water level rises to a predetermined position, only need to regularly observe the water tank 4 At the same time, the water tank 4 plays the role of isolation and radiation protection, which can prevent the external heat source from generating heat radiation to the motor and causing rapid heating.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the appended claims. All changes within the meaning and range of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (10)

1. The utility model provides a motor with heat dissipation dust removal function which characterized in that: the stator comprises a rear shell (1), a front shell (2) and a stator shell (3), wherein the front shell (2) and the rear shell (1) are respectively installed at the front end and the rear end of the stator shell (3), a flow guide cover (6) is installed at the tail part of the rear shell (1), a centrifugal impeller (5) connected with a rotor (11) is arranged in the flow guide cover (6), and a stator coil (12) is installed on the inner side of the stator shell (3); the stator is characterized in that a filtering area (301), a water replenishing area (302), an evaporating area (303) and a negative pressure space (304) are arranged inside the stator shell (3), a water tank (4) is arranged above the stator shell (3), the water tank (4) is communicated with the filtering area (301), the negative pressure space (304) is communicated with the front shell (2) through an air supply pipeline (32), the evaporating area (303) is located on the periphery of the stator coil (12), the water replenishing area (302) is located between the filtering area (301) and the evaporating area (303), and the filtering area (301) is communicated with outside air through an air inlet pipe (7).

2. The motor with the heat dissipation and dust removal functions as claimed in claim 1, wherein: the centrifugal impeller (5) comprises an annular seat (51), a limiting bulge (52), a rotating shaft (53) and blades (54), the annular seat (51) is fixed on the outer wall of a motor shaft (111) on the rotor (11), the outer wall of the annular seat (51) is provided with a plurality of limit grooves (511) which are distributed in central symmetry, the blade (54) is hinged in the limit groove (511) through a rotating shaft (53), the outer wall of the annular seat (51) and the outer edge of the limiting groove (511) are provided with limiting bulges (52) used for limiting the blades (54), the centrifugal impeller (5) is positioned on the inner side of the air guide sleeve (6), the air guide sleeve (6) is communicated with the rear shell (1) through an air inlet groove (601), the air guide sleeve (6) is communicated with the outside air through an exhaust groove (602), and the exhaust groove (602) is positioned at the periphery of the blade (54).

3. The motor with the heat dissipation and dust removal functions as claimed in claim 2, wherein: the limiting groove (511) is fan-shaped, and the blades (54) can move in the limiting groove (511) along the circumferential direction of the annular seat (51).

4. The motor with the heat dissipation and dust removal functions as claimed in claim 1, wherein: stator shell (3) are including shell (33), filter (34), baffle (35) and stator winding shell (36), baffle (35) are located the outside of stator winding shell (36), filter (34) are located between shell (33) and baffle (35), shell (33) with a certain amount of water has between stator winding shell (36), stator coil (12) are installed the inboard of stator winding shell (36), the outside of stator winding shell (36) forms a plurality of heat accumulation groove (361), be equipped with iron sand (362) in heat accumulation groove (361).

5. The motor with the heat dissipation and dust removal functions as claimed in claim 4, wherein: the partition plate (35) comprises a semi-arc-shaped first part and a semi-arc-shaped second part, the first part and the second part are symmetrically distributed, the bottoms of the first part and the second part are provided with water replenishing channels (351), the upper parts of the first part and the second part extend above the water surface, and a cavity (352) is arranged inside the partition plate (35).

6. The motor with the heat dissipation and dust removal functions as claimed in claim 4, wherein: the filter plate is characterized in that a filter bag (341) is arranged at the lower part of the filter plate (34), an air inlet pipe (7) is arranged in the filter area (301), one end of the air inlet pipe (7) extends out of the filter area (301), a floating ball (71) is arranged at the other end of the air inlet pipe (7), the floating ball (71) is immersed in water, the floating ball (71) has certain buoyancy, and an exhaust hole (711) is formed in the floating ball (71).

7. The motor with the heat dissipation and dust removal functions as claimed in claim 6, wherein: the water tank (4) with connect through moisturizing pipeline (41) between filtering area (301), it has connecting rod (82) to articulate on the inside roof of shell (33), be equipped with in evaporating area (303) with connecting rod (82) one end articulated kicking block (81), the other end of connecting rod (82) with intake pipe (7) are articulated, still be equipped with the control on moisturizing pipeline (41) valve (42) that moisturizing pipeline (41) is expert at/is disconnected.

8. The motor with the heat dissipation and dust removal functions as claimed in claim 7, wherein: the floating block (81) comprises a plurality of heat-conducting plates (812) which are arranged in parallel, a heat-conducting gap (813) is arranged between the heat-conducting plates (812), a connecting rod (811) which is hinged with the connecting rod (82) is arranged on the heat-conducting plates (812), and an expansion disc (83) which expands when heated is arranged in the heat-conducting gap (813).

9. The motor with the heat dissipation and dust removal functions as claimed in claim 4, wherein: the upper surface of the air supply pipeline (32) is provided with heat dissipation fins (31), the negative pressure space (304) is communicated with the front shell (2) through the air supply pipeline (32), and the air supply pipeline (32) is located on one side of the heat dissipation fins (31).

10. The motor with the heat dissipation and dust removal functions as claimed in claim 4, wherein: and a separation net (363) is arranged on the outer side of the heat storage tank (361), and the aperture of the separation net (363) is larger than the particle size of the iron sand (362).

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