WO2012041210A1 - 碎纸机 - Google Patents

碎纸机 Download PDF

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Publication number
WO2012041210A1
WO2012041210A1 PCT/CN2011/080183 CN2011080183W WO2012041210A1 WO 2012041210 A1 WO2012041210 A1 WO 2012041210A1 CN 2011080183 W CN2011080183 W CN 2011080183W WO 2012041210 A1 WO2012041210 A1 WO 2012041210A1
Authority
WO
WIPO (PCT)
Prior art keywords
air inlet
air
air outlet
fixing member
motor housing
Prior art date
Application number
PCT/CN2011/080183
Other languages
English (en)
French (fr)
Inventor
徐宁
Original Assignee
Xu Ning
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN2010205438363U external-priority patent/CN201846192U/zh
Priority claimed from CN201120246575U external-priority patent/CN202142951U/zh
Application filed by Xu Ning filed Critical Xu Ning
Priority to EP11828106.2A priority Critical patent/EP2624419B1/en
Priority to US13/811,247 priority patent/US9553492B2/en
Publication of WO2012041210A1 publication Critical patent/WO2012041210A1/zh

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/02Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0007Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16Details
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/207Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/26Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0007Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
    • B02C2018/0046Shape or construction of frames, housings or casings

Definitions

  • This application relates to a shredder with a motor.
  • the present application is based on a Chinese utility model patent application with the application number of 201020543836.3 on September 27, 2010, and a Chinese utility model patent application with the application number of 201120246575.3, which is filed on July 13, 2011. The content is incorporated herein by reference.
  • a motor also called an electric motor, is an electromagnetic device that converts or transmits electric energy according to the law of electromagnetic induction. Its main function is to generate driving torque, thereby becoming a power source for electric appliances or various machines. Since the motor is operated by electromagnetic cutting, the action of the current resistor must generate heat. The larger the current, the more heat is generated. If it continues to operate, it will accumulate a large amount of heat energy and affect the overall performance of the motor, thus reducing the motor operation. The efficiency, which in turn increases the operating cost of the motor.
  • the Chinese utility model patent with the authorization bulletin number CN 201290050 disclosed a "motor heat sink” on August 12, 2009.
  • the technical solution includes a "motor body, an outer casing covering the outside of the motor body, and cooling. a water tank and a pump, the outer casing is equipped with a water inlet and a water outlet respectively connected to the cooling water tank through an external pipeline to form a circuit, and the pump is connected between the cooling water tank and the water inlet; Sealing with the motor body, a water receiving portion is disposed between the outer casing and the motor body. When the motor is running, the pump draws water from the cooling water tank and enters the water inlet to enter the water receiving portion.
  • the motor body is cooled by water cooling, and then recirculated to the cooling water tank through the water outlet to form a circulation.
  • the motor heat sink is mainly water-cooled, and the cooling water is supplied through the connected cooling water tank to operate the motor.
  • the heat generated in the cooling is cooled by the cooling water, and the heat is exchanged through the cooling water tank to supply the cooling water in a circular manner.
  • the efficiency of heat dissipation improves the efficiency of motor operation and reduces the running cost of the motor.
  • the motor cooling device of the water-cooling structure has a complicated structure, and an external cooling water circulation pipe is required, which is inconvenient to be combined with other mechanical components.
  • the rotor of the motor is provided with a plurality of winding groups.
  • the winding group of the rotor When the motor is in operation, the winding group of the rotor generates the most heat, followed by the winding group of the stator, and the rotor and the outer casing of the motor conduct heat through the air, and the rotor and the rotor
  • the heat transfer coefficient between the outer casings of the motor is low, and the heat conduction speed is slow, and the technical solution described in the CN201290050 patent is to dissipate heat from the outer casing of the motor, and the heat dissipation effect is poor.
  • the patent document with the authorization number of CN2751887Y discloses a heat dissipating device of a shredder having a heat dissipating fan at one end and a plurality of heat dissipating holes at the other end.
  • the disadvantage is that the hot air radiated from the heat dissipation holes is still trapped inside the shredder housing, and is mixed with the hot air generated by other components, which affects the heat dissipation efficiency of the motor.
  • the cooling fan is mounted on one end of the motor, and the other end of the motor is not equipped with a fan due to the output shaft. Otherwise, the motor output shaft runs at a high speed, and the fan is easily detached from the motor output shaft due to continuous vibration, causing machine failure.
  • Another motor heat dissipating device in the prior art is characterized in that: a heat dissipation hole is directly formed in the motor casing, and the motor heat dissipation device of the structure can discharge heat inside the motor through the heat dissipation hole, but The heat is discharged through the natural flow of air, so the heat dissipation efficiency is low, and heat is easily accumulated inside the motor.
  • Another type of motor heat sink is to surround the heat sink around the motor casing and heat the radiator. Closely attached to the motor housing, the motor heat dissipation device of this structure increases the heat dissipation area and enhances the heat dissipation effect, but the volume is large, so that the motor takes up a large space.
  • the prior art also provides heat dissipation structures for some motors, but the structure is complicated, the assembly is inconvenient, and the manufacturing cost is high.
  • the purpose of the present application is to provide a shredder with a heat sink with a cooling effect, which can achieve a rapid cooling of the motor and a continuous shredding time, in order to avoid the deficiencies in the prior art. Long, short motor recovery time, long service life, simple structure, easy assembly, and easy to market promotion and application features.
  • a shredder comprising a casing, a shredder head, a drive mechanism and a motor disposed in the shredder head, the motor including a motor body, the motor body having an output shaft and a sleeve coupled to the output shaft a motor housing, the motor housing is provided with a heat dissipating device, the heat dissipating device comprises an air inlet device and an air outlet device, the air inlet device has a cold air inlet, the air outlet device has a hot air outlet, and the air inlet device is disposed at the One side of the output shaft, the air outlet device is disposed on the other side of the output shaft, and the motor housing is disposed at the position of the air inlet device corresponding to the air inlet hole communicating with the inner cavity of the motor housing, The motor housing is disposed with the air outlet device corresponding to the air outlet opening communicating with the inner cavity of the motor housing to form a relatively isolated independent air heat dissipation passage from the cold air inlet to the inner portion of the hot air outlet
  • the heat dissipation device housing is provided with a heat dissipation device housing, and the heat dissipation device housing is provided with an air passage communicating with the outside air, the air passage includes an air inlet air passage and an air outlet air passage, and the cold air inlet of the air inlet device is connected or adjacent to the air inlet device.
  • the wind tunnel, the hot air outlet of the air outlet device is connected to or adjacent to the air outlet duct, and forms an air inlet duct, which is separated from the inner cavity of the outer casing through the cold air inlet, the motor casing inner cavity, the hot air outlet to the air outlet duct.
  • External independent air cooling channel is provided.
  • the air inlet device is provided with a fan.
  • the air inlet device is provided with an air inlet device fixing member, and the air inlet device fixing member is fixed to the motor housing, and the air inlet device fixing member is provided with an air inlet channel on the side of the air inlet hole, and the air inlet slot
  • the road connects the air inlet and the cold air inlet.
  • One side of the air inlet fixing member is sleeved on the motor housing, and the air inlet hole is provided with a plurality of through holes formed on the side of the motor housing, and the air inlet channel surrounds the outer edge of the motor housing, and the air inlet channel faces One side of the motor housing is open.
  • the outer wall of the air inlet channel is in close contact with the motor housing.
  • the air inlet device fixing member includes a first air inlet device fixing member and a second air inlet device fixing member, and the first air inlet device fixing member and the second air inlet device fixing member are closely connected,
  • An air inlet device fixture and the second air inlet device fixture are both semi-annular structures.
  • the cross-sectional shape of the first air inlet device fixing member and the cross-sectional shape of the second air inlet device fixing member are both U-shaped.
  • the air inlet device is further provided with a fan base and an air inlet cover, one side of the fan base is connected to the air inlet fixing member, and the other side of the fan base is connected to the air inlet
  • the cover body is connected to each other, and an air inlet cavity is formed between the fan base and the air inlet cover body, and the fan is disposed in the air inlet cavity.
  • the air inlet device fixing member is integrally formed with the fan base.
  • the air outlet device includes an air outlet device fixing member, and the air outlet device fixing member is fixed to the motor housing, and the air outlet device fixing member is provided with an air outlet channel on the side of the air outlet hole, and the air outlet channel Connect the air outlet and hot air outlet.
  • the air outlet device fixing member includes a first air outlet device fixing member and a second air outlet device fixing member, and the first air outlet device fixing member and the second air outlet device fixing member are closely connected, the first The air outlet fixture and the second air outlet fixture are both semi-annular structures.
  • the cross-sectional shape of the first air outlet fixing member and the cross-sectional shape of the second air outlet fixing member are both
  • the air outlet device includes an air outlet cavity connecting member and an air outlet cover body, one side of the air outlet cavity connecting member is connected to the air outlet device fixing member, and the air outlet cavity connecting member is further One side is connected to the air outlet cover, and the air outlet cavity connector has an air outlet cavity.
  • the air outlet device fixing member is integrally formed with the air outlet cavity connecting member.
  • the air outlet device is provided with a fan.
  • the air outlet device is configured as an axial flow fan, and the axial flow fan is fixed to a tail portion of the motor housing; the first end of the axial flow fan is closed, and the second end is provided with an air inlet parallel to the output shaft, The second end of the axial fan is connected to the end surface of the tail of the motor housing, and the air inlet is connected to the air outlet to communicate with the inner cavity of the motor housing.
  • the air inlet device includes a cylindrical air inlet cover body, the air inlet cover body is fixedly connected to one end of the motor body, and the air inlet hole is opened on a surface of the air inlet cover body as a cold air inlet .
  • the air inlet holes are evenly opened along the circumferential direction of the air inlet cover.
  • the air inlet cover is integrally formed with the motor body.
  • the hot air outlet is opened on one side surface of the axial fan.
  • the air outlet device further includes a screw, the axial flow fan is provided with a positioning hole, and one end of the motor housing is provided with a threaded hole, the screw passes through the positioning hole and is screwed with the threaded hole to screw the shaft A flow fan is fixed to one end of the motor housing.
  • the side of the axial flow fan is provided with a wind guide cylinder for discharging the air flow perpendicular to the output shaft, the air guide cylinder is disposed in a funnel shape, and the air guide cylinder has a wider cross section facing outward.
  • the external air is sucked into the interior of the motor body through the air inlet device to air-cool the components such as the rotor and the coil through the air inlet device, and then the air outlet device passes through the hot air outlet through the air outlet device.
  • the cold airflow flowing from the outside into the inner cavity of the motor casing is heat exchanged with the motor group and the motor casing, respectively, and the heat of the wire group and the motor casing is quickly taken, and the line is lowered.
  • the temperature of the set and the motor housing The air inlet device or the air outlet device is forced air-cooled by a fan to accelerate the air flow, thereby rapidly cooling the motor and prolonging the service life of the motor.
  • a relatively isolated independent air cooling passage is formed from the cold air inlet through the inner casing of the motor casing to the inside of the hot air outlet; in the shredder, the cold air inlet of the air inlet device is connected to or adjacent to the air inlet duct, and the air is discharged.
  • the hot air outlet of the device is connected to or adjacent to the air outlet duct, forming an external independent air cooling channel isolated from the inlet air duct and passing through the cold air inlet, the motor housing inner chamber, the hot air outlet to the air outlet duct and the inner cavity of the outer casing.
  • the discharged hot air is not mixed with the hot air generated by other components located in the inner cavity of the outer casing, but is directly discharged to the outside air outside the outer casing, so that heat dissipation efficiency is high.
  • the air inlet device and the air outlet device are arranged on the side, and the design of the installation structure is not restricted by the motor output shaft, and the structure is simple, the motor is small in size, easy to assemble, and convenient for market promotion and application.
  • Embodiment 1 is a schematic structural view of a motor according to Embodiment 1 of the present application.
  • FIG. 2 is a schematic structural view of an air inlet device of a motor according to Embodiment 1 of the present application.
  • FIG. 3 is a schematic structural view of an air outlet device of a motor according to Embodiment 1 of the present application.
  • FIG. 4 is a schematic view showing the internal structure of a shredder according to Embodiment 1 of the present application.
  • Fig. 5 is a schematic view showing the external structure of the shredder according to the first embodiment of the present application.
  • FIG. 6 is a schematic view showing the internal structure of a paper shredder with a motor according to a second embodiment of the present application.
  • FIG. 7 is a schematic view showing the external structure of a paper shredder with a motor according to a second embodiment of the present application.
  • FIG. 8 is a schematic structural view of a motor according to a third embodiment of the present application.
  • FIG. 9 is a schematic structural view of an air outlet device of a motor according to a third embodiment of the present application.
  • Figure 10 is a schematic view showing the internal structure of a shredder according to a third embodiment of the present application.
  • Figure 11 is a schematic view showing the external structure of a shredder according to a third embodiment of the present application.
  • the motor includes a motor body 1 having an output shaft 12 and a motor housing 11 sleeved on the output shaft 12 , wherein the motor housing 11 is provided with a heat dissipating device, and the heat dissipating device includes an air inlet device. 2 and the air outlet device 3, the air inlet device 2 is disposed on a side adjacent to the output shaft 12, the air outlet device 3 is disposed on a side away from the output shaft 12, and the motor housing 11 is provided with a position corresponding to the air inlet device 2 In the air hole 13, the motor housing 11 is provided with an air outlet 14 corresponding to the position of the air outlet device 3, and the air inlet device 2 is provided with a fan 22.
  • the air inlet holes 13 provided in the motor casing 11 are arranged in a ring shape, and the distance between the respective air inlet holes 13 is equal; the air outlet holes 14 provided in the motor casing 11 are arranged in a ring shape, and the distance between the respective air outlet holes 14 is equal.
  • the motor having the heat dissipating device forcibly sucks outside air into the motor body 1 through the air inlet hole 13 of the motor housing 11 through the fan 22 provided in the air inlet device 2 to air-cool the components such as the rotor and the coil, and then passes through the motor housing.
  • the air outlet hole 14 of the 11 is discharged into the outside air by the air outlet device 3.
  • the forced air cooling by the fan 22 can accelerate the air flow, thereby rapidly cooling the motor, prolonging the service life of the motor, and the structure is simple and easy to assemble, which is convenient for market promotion and application.
  • the air inlet device 2 and the air outlet device 3 are disposed on the motor housing 11 in such a manner that the air inlet device 2 is disposed on a side away from the output shaft 12, and the air outlet device 3 is disposed on a side adjacent to the output shaft 12. .
  • the fan 22 can be an axial fan or a radial fan.
  • the air inlet device 2 is further provided with an air inlet device fixing member 24, a fan base 23 and an air inlet cover body 21, and the air inlet device fixing member 24 is fixed to the motor housing 11, specifically, the air inlet device One side of the fixing member 24 is sleeved on the motor housing 11 , and the air inlet hole 13 is disposed in a plurality of through holes opening in the side of the motor housing 11 .
  • the air inlet channel 240 surrounds the outer edge of the motor housing 11 and enters the air.
  • the channel 240 is open toward one side of the motor housing 11, and the outer wall of the air inlet channel 240 is in close contact with the motor housing 11, and a sealing gasket may be disposed between the outer wall of the air inlet channel 240 and the motor housing 44 ( Not shown in the drawing), one side of the fan base 23 is connected to the air inlet fixing member 24, and the other side of the fan base 23 is connected to the air inlet cover 21, the fan base 23 and the air inlet cover An air inlet cavity is formed between the two, and a slot 212 for engaging the fan 22 is disposed in the air inlet cover 21 to engage the fan 22 in the card slot 212 and pass through the screw holes of the four corners of the fan 22
  • the fixing screw fixes it to the fan base 23, so that the fan 22 is disposed in the air inlet chamber, and the air inlet is installed
  • the air inlet hole 240 is disposed on one side of the air inlet hole 13 , and the air inlet hole 211 is disposed on the outer surface of the air inlet cover 21 .
  • the air inlet channel 240 communicates with the air inlet hole 13 and the air inlet hole 211 . .
  • the fan 22 provided by the air inlet device 2 forcibly sucks outside air into the air inlet chamber through the air suction hole 211 of the air inlet cover 21, and then flows through the annular air inlet channel 240, and the generated swirl flow is in the air inlet hole.
  • the periphery of the 13 is cooled by the flow, and then enters the inside of the motor through the air inlet hole 13 for heat dissipation, and has a cooling effect.
  • the air suction holes 211 may be arranged neatly on the outer surface of the air inlet cover 21, or The description is unevenly disposed on the outer surface of the intake hood 21.
  • the aperture of the suction hole 211 should not be too large to prevent dust from entering and to prevent the user's fingers from being accidentally caught.
  • the diameter of the suction hole 211 is preferably in the range of 50 mm to 300 mm.
  • the air inlet fixing member 24 includes a first air inlet fixing member 241 and a second air inlet fixing member 242, and the first air inlet fixing member 241 and the second air inlet fixing member 242 are closely connected.
  • the first air inlet device fixing member 241 and the second air inlet device fixing member 242 are both semi-annular structures, and the cross-sectional shape thereof is U-shaped, wherein the air inlet channel 240 is a U-shaped groove.
  • the air inlet means 24 of the two semi-annular structures are fastened at the end faces by fastening screws, integrally clamped to the motor housing 11, and the air inlet channels 240 are adjacent to the annular inlet holes 13.
  • the second air inlet fixing member 242 is connected to the fan base 23.
  • the air inlet fixing member 24 and the fan base 23 can be designed to be integrally formed. Alternatively, it can be tightly screwed by a fastening screw.
  • the air outlet device 3 includes an air outlet device fixing member 33, an air outlet chamber connecting member 32, and an air outlet cover body 31.
  • the air outlet device fixing member 33 is fixed to the motor housing 11, and the air outlet chamber is connected.
  • One side of the member 32 is connected to the air outlet fixing member 33, and the other side of the air outlet chamber connecting member 32 is connected to the air outlet housing 31 by a fastening screw, and the air outlet chamber connecting member 32 has an air outlet chamber.
  • the air outlet device fixing member 33 is disposed on one side of the air outlet hole 14 and is provided with an air outlet channel 330.
  • the air outlet channel 330 communicates with the air outlet cavity 321 , and the outer surface of the air outlet cover body 31 is disposed. Exhaust hole 311.
  • the air flow with heat enters the air outlet channel 330 provided in the air outlet device 3 through the air outlet hole 14 of the motor housing 11 to swirl, passes through the air outlet chamber 321 , and is discharged to the outside through the air exhaust hole 311 .
  • the air outlet cavity 321 has a diverging structure, and the larger end of the air outlet cavity 321 is connected to the air outlet cover 31.
  • the air flow in the air outlet channel 330 is forcibly discharged to the outside through a pressure difference.
  • the motor uses the air suction hole 211 as a cold air inlet and the air exhaust hole 311 as a hot air outlet to form a relatively isolated independent air heat dissipation passage from the cold air inlet through the motor housing inner cavity to the inside of the hot air outlet, independent of the motor. The effect of device heating.
  • the exhaust holes 311 may be arranged neatly on the outer surface of the air outlet cover 31, or may be unevenly disposed on the outer surface of the air outlet cover 31.
  • the aperture of the venting opening 311 should not be too large to prevent dust from entering and preventing the fingers of the user from being accidentally caught.
  • the diameter of the vent hole 311 is preferably in the range of 50 mm to 300 mm.
  • the air outlet fixing member 33 includes a first air outlet fixing member 331 and a second air outlet fixing member 332, and the first air outlet fixing member 331 and the second air outlet fixing member 332 are closely connected.
  • the first air outlet fixing member 331 and the second air outlet fixing member 332 are both semi-annular structures.
  • the cross-sectional shape of the first air outlet fixing member 331 and the cross-sectional shape of the second air outlet fixing member 332 are both U-shaped, and the air outlet channel 330 is a U-shaped groove.
  • the air outlet fixing members 33 of the two semi-annular structures are fastened at the end faces by fastening screws, and are integrally clamped to the motor casing 11, and the air passages 330 are brought close to the annular air outlet holes 14.
  • the second air outlet fixing member 332 is connected to the air outlet body connecting member 32.
  • the air outlet fixing member 33 and the air outlet chamber connecting member 32 are integrally formed. Or it can be tightly screwed by means of a fastening screw.
  • the paper shredder having the above motor includes a casing 6 and a shredder head 4, and a shredder head 4 is provided with a transmission mechanism 5 and the above-described motor, and the casing 6 is provided with a radiator housing 7 , the outer surface of the heat sink housing 7 is disposed
  • the book has a duct 71 that communicates with the outside air.
  • the air duct 71 includes an air inlet duct 711 and an air outlet duct 712.
  • the cold air inlet of the air inlet device is connected to or adjacent to the air inlet duct 711, and the hot air outlet of the air outlet device is connected to or adjacent to the air outlet duct 712 to form a slave air duct 712.
  • the inlet air duct 711 is sequentially passed through the cold air inlet, the motor housing inner chamber, and the hot air outlet to the outlet air duct 712, which is separated from the inner space of the outer casing 6 by an independent air cooling passage.
  • Embodiment 2
  • the shredder as shown in Fig. 6 includes a casing 6 and a shredder head 4 in which a transmission mechanism 5 and a motor are disposed.
  • the motor includes a motor body having an output shaft and a motor housing 11 sleeved on the output shaft, the motor housing 11 is provided with a heat dissipation device, and the heat dissipation device includes The air inlet device 2 and the air outlet device 3, the air inlet device 2 has a cold air inlet 81, and the air outlet device 3 has a hot air outlet 82, the air inlet device 2 is disposed at one side of the output shaft, and the air outlet device 3
  • the motor housing 11 is disposed on the other side of the output shaft, and the air inlet device 2 is disposed at a position corresponding to an air inlet opening communicating with the inner cavity of the motor housing, and the motor housing 11 is configured to set the air outlet.
  • the position of the device 3 corresponds to an air outlet opening communicating with the inner cavity of the motor housing.
  • the air inlet device 2 is provided with the fan 22.
  • the air outlet device 3 is also provided with a fan 22 for forced air cooling, which can accelerate the air flow, thereby rapidly cooling the motor and extending the motor. The service life.
  • the shredder of Fig. 7 is similar to the first embodiment in that the outer casing 6 is provided with a heat sink housing 7, and the outer surface of the heat sink housing 7 is provided with an air passage 71 communicating with the outside air.
  • the air duct includes an air inlet duct 711 and an air outlet duct 712.
  • the cold air inlet 81 of the air inlet device 2 is connected to or adjacent to the air inlet duct, and the hot air outlet 82 of the air outlet device 3 is connected to or adjacent to the air duct, forming a strip.
  • an external independent air cooling passage is isolated from the inner cavity of the outer casing 6.
  • the motor includes a motor body 1 having an output shaft and a motor housing 11 that is sleeved on the output shaft.
  • the motor housing 11 is provided with a heat dissipating device, and the heat dissipating device includes an air inlet device 2 and The air outlet device 3, the air inlet device 2 is disposed on one side of the output shaft, the air outlet device 3 is disposed on the other side of the output shaft, and the air inlet device 2 is provided with an air inlet hole 13 (also serving as a cold air inlet), and the air outlet device 3 A hot air outlet 14 is provided, and the air outlet device 3 is disposed as an axial fan 301.
  • the axial fan 301 is fixed to the tail of the motor housing 11.
  • the first end of the axial fan 301 is closed, and the second end is disposed parallel to the output shaft.
  • the air inlet 331, the second end of the axial fan 301 is connected to the end surface of the tail of the motor casing 11, and the air inlet 331 is connected to the air outlet of the inner cavity of the motor casing to communicate with the inner cavity of the motor casing 11.
  • the axial flow fan 301 is also referred to as a centrifugal fan.
  • suction is generated, air is drawn into the motor housing 11 through the air inlet hole 13, and then discharged from the hot air outlet 14, and therefore, functions as an axial flow fan 301.
  • the lower motor housing 11 forms an air circulation, and the motor housing 11 achieves an air cooling effect.
  • the air inlet device 2 includes a cylindrical air inlet cover 21, and the air inlet cover 21 is fixedly coupled to one end of the motor body 1, and the air inlet hole 13 is formed on the surface of the air inlet cover 21. Suction is generated when the axial fan 3 rotates, and the outside wind is drawn into the motor casing 1 from the air inlet hole 13.
  • the motor uses the air inlet hole 13 as a cold air inlet to form a cold air inlet.
  • the relatively isolated independent air cooling passages from the interior of the motor housing to the interior of the hot air outlet are not affected by the heating of the components other than the motor.
  • the air inlet hole 13 is evenly opened in the circumferential direction of the air inlet cover body 21, and generates suction when the axial flow fan 3 rotates, and the outside air can be uniformly entered into the motor housing 1 by the air inlet cover body 21, and the air cooling is enhanced. effect.
  • the intake hood 21 is integrally formed with the motor body 1.
  • the hot air outlet 14 is formed on one side surface of the axial fan 301.
  • suction is generated, and the outside wind is sucked into the motor casing 1 from the air inlet hole 13, and then the hot air outlet 14 is discharged.
  • the axial fan 301 further includes a screw (not shown).
  • the axial fan 301 is provided with a positioning hole 3011.
  • One end of the motor housing 1 is provided with a threaded hole 15 through which the screw passes and is screwed to the threaded hole 15.
  • the axial fan 301 is fixed to one end of the motor housing 1.
  • the side of the axial fan 301 is provided with an air guiding cylinder 3012 perpendicular to the output shaft for discharging the airflow.
  • the air guiding cylinder 3012 is disposed in a funnel shape, and the wider cross section of the air guiding cylinder 3012 faces outward.
  • the motor shredder has a casing 6 and a shredder head 4, and the shredder head 4 is provided with a transmission mechanism 5 and the above motor, and the casing 6 is provided with a radiator housing 7,
  • the outer surface of the heat sink housing 7 is provided with a duct 71 that communicates with the outside air.
  • the air duct 71 includes an air inlet duct 711 and an air outlet duct 712.
  • the cold air inlet of the air inlet device is connected to or adjacent to the air inlet duct 711, and the hot air outlet 14 of the air outlet device is connected to or adjacent to the air outlet duct 712 to form a strip.
  • the utility model adopts the air inlet device to suck the outside air into the motor body through the cold air inlet to cool the components such as the rotor and the coil, and then discharges the components such as the rotor and the coil through the air outlet device through the hot air outlet to the outside air outside the outer casing.
  • the cold airflow flowing into the inner cavity of the motor casing is heat exchanged with the motor group and the motor casing, respectively, to quickly take the heat of the wire group and the motor casing, and reduce the temperature of the wire group and the motor casing.
  • the air inlet device or the air outlet device uses a fan for forced air cooling to accelerate the air flow, thereby rapidly cooling the motor and prolonging the service life of the motor.
  • a relatively isolated independent air cooling passage is formed from the cold air inlet through the inner casing of the motor casing to the inside of the hot air outlet; in the shredder, the cold air inlet of the air inlet device is connected to or adjacent to the air inlet duct, and the air is discharged.
  • the hot air outlet of the device is connected to or adjacent to the air outlet duct, forming an external independent air cooling channel isolated from the inlet air duct and passing through the cold air inlet, the motor housing inner chamber, the hot air outlet to the air outlet duct and the inner cavity of the outer casing.
  • the discharged hot air is not mixed with the hot air generated by other components located in the inner cavity of the outer casing, but is directly discharged to the outside air outside the outer casing, so that heat dissipation efficiency is high.
  • the air inlet device and the air outlet device are arranged on the side, and the design of the installation structure is not restricted by the motor output shaft, and the structure is simple, the motor is small in size, easy to assemble, and convenient for market promotion and application.
  • the utility model can be mass-produced and has a good market prospect.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Food Science & Technology (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Crushing And Pulverization Processes (AREA)

Description

说 明 书 碎纸机 技术领域
本申请涉及带马达的碎纸机。 本申请是基于申请日 2010年 9月 27 日的、 申请号为 201020543836.3 的中国实用新型专利申请和申请日 2011 年 7 月 13 日的、 申请号为 201120246575.3的中国实用新型专利申请, 上述专利申请的内容作为参考引入本文。
背景技术
马达, 也称电动机, 它是依据电磁感应定律实现电能的转换或传递的一种电磁装置, 其主要作用是产生驱动转矩, 从而成为电器或者各种机械的动力源。 由于马达运转是经由 电磁切割作用所致, 电流电阻的作用必定产生热量, 电流越大, 产生的热量就越多, 若持 续运转, 将累积大量的热能而影响马达的综合性能, 从而降低马达运转的效率, 进而增加 马达的运转成本。
为解决上述问题, 授权公告号为 CN 201290050的中国实用新型专利于 2009年 8月 12 日公开了一种 "马达散热装置", 其技术方案包括"马达本体, 覆盖于马达本体外部的外壳, 冷却水箱及泵, 所述外壳装配有分别通过外接的管路连接于所述冷却水箱以构成回路的入 水口及出水口, 所述冷却水箱与所述入水口之间连接所述泵; 所述外壳与所述马达本体密 封, 所述外壳与所述马达本体之间具有容水部, 在马达运转时, 所述泵自所述冷却水箱抽 水并打进所述入水口进入所述容水部, 借水冷方式提供所述马达本体降温, 再经由所述出 水口回流至所述冷却水箱形成循环使用。" 该马达散热装置以水冷为主, 通过所连接的冷 却水箱供应冷却水, 可以将马达运转中所产生的热能通过冷却水而降温, 并经由冷却水箱 进行热交换以循环方式供应冷却水, 可以提升散热的效能, 增进马达运转效率, 进而降低 马达的运转成本。 但是这种水冷结构的马达散热装置, 其结构较为复杂, 而且需另设外接 的冷却水循环管, 不便于与其它机械部件的结合使用。
另外, 马达的转子设置有若干绕线组, 在马达工作时, 转子的绕线组产生的热量最多, 其次是定子的绕线组, 而转子与马达的外壳之间通过空气传导热量, 转子与马达的外壳之 间热传导系数低, 热传导速度慢, 而 CN201290050专利所述技术方案是对马达的外壳进行 散热, 散热效果较差。
授权公告号为 CN2751887Y的专利文献公开了碎纸机的散热装置, 其马达一端加装散热 风扇, 另一端具若干散热孔。 其缺点是散热孔散出的热空气仍滞留在碎纸机外壳内部, 与 其它部件产生的热空气混合在一起, 影响了马达的散热效率。 散热风扇装在马达一端, 而 马达另一端则因设有输出轴而无法安装风扇, 否则马达输出轴的高速持续运转, 容易因持 续的振动导致风扇从马达输出轴中脱落, 引起机器故障, 这也对设计人员构成了制约, 无 法进一步提高散热效率。 说 明 书 现有技术中的另一种马达散热装置, 其结构为: 直接在马达壳体上开设散热孔, 这种 结构的马达散热装置虽然可以使得马达内部的热量通过散热孔排出, 但是由于这种热量的 排出是通过空气的自然流动形成的, 所以散热效率较低, 在马达内部较易积聚热量; 另一 种马达散热装置的结构是将散热器环绕于马达壳体的外围, 并将散热器与马达壳体紧密贴 合, 这种结构的马达散热装置虽然增加了散热面积, 加强了散热效果, 但是体积较大, 使 得马达占用空间较大。
除此之外, 现有技术还给出了一些马达的散热结构, 但其结构复杂, 组装不便, 制造 成本较高。
因此, 针对现有技术中的不足, 亟需提供一种碎纸机, 该碎纸机具有散热装置的马达, 冷却效果好, 可以实现对马达的快速降温, 具有连续碎纸时间长、 马达恢复时间短、 使用 寿命长、 结构简单、 易于装配, 便于市场化的推广及应用的特点。 申请内容
本申请的目的在于避免现有技术中的不足之处而提供一种碎纸机, 该碎纸机具有带散 热装置的马达, 冷却效果好, 可以实现对马达的快速降温, 具有连续碎纸时间长、 马达恢 复时间短、 使用寿命长、 结构简单、 易于装配, 便于市场化的推广及应用的特点。
本申请的目的通过以下技术方案实现:
碎纸机, 包括外壳、 碎纸机头, 所述碎纸机头中设置有传动机构和马达, 所述马达包 括有马达本体, 所述马达本体具有输出轴和套接于所述输出轴的马达壳体, 所述马达壳体 设置有散热装置, 所述散热装置包括进风装置和出风装置, 进风装置具有冷风进口, 出风 装置具有热风出口, 所述进风装置设置于所述输出轴的一侧, 所述出风装置设置于所述输 出轴的另一侧, 所述马达壳体设置所述进风装置的位置对应开设有连通马达壳体内腔的进 风孔, 所述马达壳体设置所述出风装置的位置对应开设有连通马达壳体内腔的出风孔, 形 成一条从冷风进口经马达壳体内腔到热风出口的内部的相对隔离的独立空气散热通道。
所述外壳设置有散热装置壳体, 所述散热装置壳体设置有与外部空气相通的风道, 该 风道包括进风风道和出风风道, 进风装置的冷风进口连接或临近进风风道, 出风装置的热 风出口连接或临近出风风道, 形成一条从进风风道依次经冷风进口、 马达壳体内腔、 热风 出口到出风风道的与外壳的内腔隔离的外通独立空气散热通道。
进风装置设置有风扇。
进风装置设置有进风装置固定件, 进风装置固定件固定于所述马达壳体, 进风装置固 定件在设置于所述进风孔的一侧设置有进风槽道, 进风槽道连通进风孔和冷风进口。
进风装置固定件的一侧部套设于马达壳体, 进风孔设置为开设于马达壳体侧面的若干 通孔, 进风槽道环绕于马达壳体的外缘, 进风槽道朝向马达壳体的一侧敞开。
进风槽道的外壁紧贴于马达壳体。
进风槽道的外壁与马达壳体之间设置有密封垫片。 说 明 书 所述进风装置固定件包括第一进风装置固定件和第二进风装置固定件, 所述第一进风 装置固定件和所述第二进风装置固定件紧密连接, 所述第一进风装置固定件和所述第二进 风装置固定件均为半圆环结构。
所述第一进风装置固定件的横断面形状和所述第二进风装置固定件的横断面形状均为 U型。
所述进风装置还设置有风扇基座和进风罩体, 所述风扇基座的一侧与所述进风装置固 定件相连接, 所述风扇基座的另一侧与所述进风罩体相连接, 所述风扇基座和所述进风罩 体之间形成进风腔体, 所述风扇设置于所述进风腔体内。
所述进风装置固定件与所述风扇基座一体成型。
出风装置包括出风装置固定件, 出风装置固定件固定于所述马达壳体, 出风装置固定 件在设置于所述出风孔的一侧设置有出风槽道, 出风槽道连通出风孔和热风出口。
所述出风装置固定件包括第一出风装置固定件和第二出风装置固定件, 所述第一出风 装置固定件和所述第二出风装置固定件紧密连接, 所述第一出风装置固定件和所述第二出 风装置固定件均为半圆环结构。
所述第一出风装置固定件的横断面形状和所述第二出风装置固定件的横断面形状均为
U型。
所述出风装置包括出风腔体连接件和出风罩体, 所述出风腔体连接件的一侧与所述出 风装置固定件相连接, 所述出风腔体连接件的另一侧与所述出风罩体相连接, 所述出风腔 体连接件具有出风腔体。
所述出风装置固定件与所述出风腔体连接件一体成型。
所述出风装置设置有风扇。
所述出风装置设置为轴流风扇, 所述轴流风扇固定于马达壳体的尾部; 所述轴流风扇 的第一端封闭、 第二端设置有一平行于输出轴的进风口, 所述轴流风扇的第二端连接马达 壳体的尾部的端面, 进风口接至出风孔从而连通所述马达壳体的内腔。
所述进风装置包括一个圆筒形状的进风罩体, 所述进风罩体与所述马达本体的一端固 定连接, 所述进风孔开设于所述进风罩体的表面作为冷风进口。
所述进风孔是沿所述进风罩体的圆周方向均匀开设的。
所述进风罩体是与所述马达本体一体成型的。
所述热风出口开设于所述轴流风扇的一侧表面。
所述出风装置还包括螺钉, 所述轴流风扇设置有定位孔, 所述马达壳体的一端设置有 螺纹孔, 所述螺钉穿过所述定位孔并且与所述螺纹孔螺接将轴流风扇固定于所述马达壳体 的一端。
所述轴流风扇的侧面设置有一用于排出气流的垂直于输出轴的导风筒, 所述导风筒设 置为漏斗形, 所述导风筒较宽的截面朝外。 说 明 书 本申请的上述马达与现有技术相比, 通过进风装置将外部空气经冷风进口吸入马达本 体内部对转子、 线圈等元件进行风冷冷却, 然后通过出风装置经热风出口由出风装置排出 至外壳以外的外部空气中, 从外界流入到马达壳体的内腔中的冷气流分别与马达的线组、 马达壳体热交换, 快速带走线组和马达壳体的热量, 降低线组和马达壳体的温度。 进风装 置或连同出风装置采用风扇进行强制风冷, 可以加速空气流动, 从而对马达进行快速降温, 延长了马达的使用寿命。 在马达内部, 形成一条从冷风进口经马达壳体内腔到热风出口的 内部的相对隔离的独立空气散热通道; 在碎纸机中, 进风装置的冷风进口连接或临近进风 风道, 出风装置的热风出口连接或临近出风风道, 形成一条从进风风道依次经冷风进口、 马达壳体内腔、 热风出口到出风风道的与外壳的内腔隔离的外通独立空气散热通道, 所排 出的热空气不会与位于外壳的内腔的其它部件产生的热空气混合在一起, 而是直接排出到 外壳以外的外部空气中, 因而散热效率高。 进风装置和出风装置设在侧方, 其安装结构的 设计不受马达输出轴的制约, 结构简单、 马达的体积小、 易于装配, 便于市场化的推广及 应用。 附图说明
图 1是本申请实施例一的马达的结构示意图。
图 2是本申请实施例一的马达的进风装置的结构示意图。
图 3是本申请实施例一的马达的出风装置的结构示意图。
图 4是本申请实施例一的碎纸机的内部结构示意图。
图 5是本申请实施例一的碎纸机的外部结构示意图。
图 6是本申请实施例二的带马达的碎纸机的内部结构示意图。
图 7是本申请实施例二的带马达的碎纸机的外部结构示意图。
图 8是本申请实施例三的马达的结构示意图。
图 9是本申请实施例三的马达的出风装置的结构示意图。
图 10是本申请实施例三的碎纸机的内部结构示意图。
图 11是本申请实施例三的碎纸机的外部结构示意图。
附图标记清单:
在实施例一、 二中, 1——马达本体、 11——马达壳体、 12——输出轴、 13——进风孔、 14—出风孔、 2—进风装置、 21—进风罩体、 211—吸风孔、 212—卡槽、 22— 风扇、 23—风扇基座、 24—进风装置固定件、 240—进风槽道、 241—第一进风装 置固定件、 242—第二进风装置固定件、 3—出风装置、 31—出风罩体、 311—排风 孔、 32—出风腔体连接件、 321—出风腔体、 33—出风装置固定件、 330—出风槽 道、 331—第一出风装置固定件、 332—第二出风装置固定件、 4—碎纸机头、 5— 传动机构、 6—外壳、 7—散热装置壳体、 71—风道、 711—进风风道、 712—出 风风道、 81——冷风进口、 82——热风出口; 说 明 书 在实施例三中, 1——马达本体、 11——马达壳体、 13——进风孔、 14——热风出口、 15—螺纹孔、 2—进风装置、 21—进风罩体、 3—出风装置、 301—轴流风扇、 331——进风口、 3011——定位孔、 3012——导风筒、 4——碎纸机头、 5——传动机构、 6—— 外壳、 7—散热装置壳体、 71—风道、 711—进风风道、 712—出风风道。 具体实施方式
实施例一
马达如图 1所示, 包括有马达本体 1, 马达本体 1具有输出轴 12和套接于输出轴 12的 马达壳体 11, 其中, 马达壳体 11设置有散热装置, 散热装置包括进风装置 2和出风装置 3, 进风装置 2设置于邻近输出轴 12的一侧, 出风装置 3设置于远离输出轴 12的一侧, 马达 壳体 11设置进风装置 2的位置对应开设有进风孔 13, 马达壳体 11设置出风装置 3的位置 对应开设有出风孔 14, 进风装置 2设置有风扇 22。 马达壳体 11设置的进风孔 13呈环形排 列, 各个进风孔 13之间的距离相等; 马达壳体 11设置的出风孔 14呈环形排列, 各个出风 孔 14之间的距离相等。 该具有散热装置的马达通过进风装置 2设置的风扇 22将外部空气 经马达壳体 11的进风孔 13强制吸入马达本体 1 内部对转子、 线圈等元件进行风冷冷却, 然后经马达壳体 11的出风孔 14由出风装置 3排出至外部空气中。 采用风扇 22进行强制风 冷, 可以加速空气流动, 从而对马达进行快速降温, 延长了马达的使用寿命, 并且结构简 单、 易于装配, 便于市场化的推广及应用。
另, 进风装置 2和出风装置 3在马达壳体 11上的设置方式还可以是进风装置 2设置于 远离输出轴 12的一侧, 出风装置 3设置于邻近输出轴 12的一侧。
其中, 风扇 22可以选用轴流式风扇或者径流式风扇。
如图 2所示, 进风装置 2还设置有进风装置固定件 24、 风扇基座 23和进风罩体 21, 进风装置固定件 24固定于马达壳体 11, 具体地, 进风装置固定件 24的一侧部套设于马达 壳体 11, 进风孔 13设置为开设于马达壳体 11侧面的若干通孔, 进风槽道 240环绕于马达 壳体 11的外缘,进风槽道 240朝向马达壳体 11的一侧敞开,进风槽道 240的外壁紧贴于马 达壳体 11, 进风槽道 240的外壁与马达壳体 44之间还可以设置有密封垫片 (图中未示出), 风扇基座 23的一侧与进风装置固定件 24相连接, 风扇基座 23的另一侧与进风罩体 21相 连接, 风扇基座 23和进风罩体 21之间形成进风腔体, 在进风罩体 21内设置有卡接风扇 22 的卡槽 212, 将风扇 22卡接于卡槽 212, 并通过风扇 22四个角的螺钉孔, 用紧固螺钉将其 固定于风扇基座 23, 使得风扇 22设置于进风腔体内, 进风装置固定件 24设置于进风孔 13 的一侧设置有进风槽道 240, 进风罩体 21的外表面设置有吸风孔 211, 进风槽道 240连通 进风孔 13和吸风孔 211。 通过进风装置 2设置的风扇 22将外部空气通过进风罩体 21的吸 风孔 211强制吸入进风腔体, 再流经环形的进风槽道 240, 所产生的旋流在进风孔 13的外 围进行流动散热, 然后通过进风孔 13进入马达内部进行散热, 具有冷却效果好的特点。
如图 1和图 2所示, 吸风孔 211可以整齐排列的设置于进风罩体 21的外表面, 也可以 说 明 书 不均匀地设置于进风罩体 21的外表面。 吸风孔 211的孔径不能太大, 以免灰尘进入和防止 使用者手指不小心绞住。 吸风孔 211的孔径优选在 50mm〜300mm之间的范围。
如图 2所示, 进风装置固定件 24包括第一进风装置固定件 241和第二进风装置固定件 242, 第一进风装置固定件 241和第二进风装置固定件 242紧密连接, 第一进风装置固定件 241和第二进风装置固定件 242均为半圆环结构, 其横断面形状均为 U型, 其中进风槽道 240即为 U型组成的槽。 两个半圆环结构的进风装置固定件 24在端面通过紧固螺钉进行紧 固, 整体卡紧于马达壳体 11, 并使得进风槽道 240贴近环形排列的进风孔 13。 其中, 第二 进风装置固定件 242与风扇基座 23相连接。
如图 1所示, 进风装置固定件 24与风扇基座 23可以设计成一体成型。 或者还可以通 过紧固螺钉进行紧密螺接。
如图 3所示, 出风装置 3包括出风装置固定件 33、 出风腔体连接件 32和出风罩体 31, 出风装置固定件 33固定于马达壳体 11, 出风腔体连接件 32的一侧与出风装置固定件 33相 连接, 出风腔体连接件 32的另一侧与出风罩体 31通过紧固螺钉相连接, 出风腔体连接件 32具有出风腔体 321, 出风装置固定件 33设置于出风孔 14的一侧设置有出风槽道 330, 出 风槽道 330与出风腔体 321相连通, 出风罩体 31的外表面设置有排风孔 311。 带有热量的 空气流通过马达壳体 11设置的出风孔 14进入出风装置 3设置的出风槽道 330进行旋流, 再经过出风腔体 321,并通过排风孔 311排出至外界。其中, 出风腔体 321具有渐扩型结构, 出风腔体 321较大的一端与出风罩体 31相连接。 通过压差将出风槽道 330内的空气流强制 排出外界。该马达以吸风孔 211作为冷风进口, 以排风孔 311作为热风出口, 形成一条从冷 风进口经马达壳体内腔到热风出口的内部的相对隔离的独立空气散热通道, 不受马达之外 的器件发热的影响。
如图 1和图 3所示, 排风孔 311可以整齐排列的设置于出风罩体 31的外表面, 也可以 不均匀地设置于出风罩体 31的外表面。 排风孔 311的孔径不能太大, 以免灰尘进入和防止 使用者手指不小心绞住。 排风孔 311的孔径优选在 50mm〜300mm之间的范围。
如图 3所示, 出风装置固定件 33包括第一出风装置固定件 331和第二出风装置固定件 332, 第一出风装置固定件 331和第二出风装置固定件 332紧密连接, 第一出风装置固定件 331和第二出风装置固定件 332均为半圆环结构。第一出风装置固定件 331的横断面形状和 第二出风装置固定件 332的横断面形状均为 U型, 其中出风槽道 330即为 U型组成的槽。 两个半圆环结构的出风装置固定件 33在端面通过紧固螺钉进行紧固, 整体卡紧于马达壳体 11, 并使得出风槽道 330贴近环形排列的出风孔 14。 其中, 第二出风装置固定件 332与出 风腔体连接件 32相连接。
如图 1所示, 出风装置固定件 33与出风腔体连接件 32—体成型。 或者还可以通过紧 固螺钉进行紧密螺接。
具有上述马达的碎纸机如图 4和图 5所示, 包括外壳 6和碎纸机头 4, 碎纸机头 4中设 置有传动机构 5和上述马达, 外壳 6设置有散热装置壳体 7, 散热装置壳体 7的外表面设置 说 明 书 有与外部空气相通的风道 71。 该风道 71包括进风风道 711和出风风道 712, 进风装置的冷 风进口连接或临近进风风道 711, 出风装置的热风出口连接或临近出风风道 712, 形成一条 从进风风道 711依次经冷风进口、 马达壳体内腔、 热风出口到出风风道 712的与外壳 6的 内腔隔离的外通独立空气散热通道。 实施例二
如图 6的碎纸机包括外壳 6和碎纸机头 4, 碎纸机头 4中设置有传动机构 5和马达。 马 达与实施例一类似地, 包括有马达本体, 所述马达本体具有输出轴和套接于所述输出轴的 马达壳体 11, 所述马达壳体 11设置有散热装置, 所述散热装置包括进风装置 2和出风装置 3, 进风装置 2具有冷风进口 81, 出风装置 3具有热风出口 82, 所述进风装置 2设置于所 述输出轴的一侧, 所述出风装置 3设置于所述输出轴的另一侧, 所述马达壳体 11设置所述 进风装置 2的位置对应开设有连通马达壳体内腔的进风孔, 所述马达壳体 11设置所述出风 装置 3的位置对应开设有连通马达壳体内腔的出风孔。 本实施例不仅进风装置 2设置有风 扇 22, 与实施例一不同的是出风装置 3也设有风扇 22, 进行强制风冷, 可以加速空气流动, 从而对马达进行快速降温, 延长了马达的使用寿命。
如图 7的碎纸机与实施例一类似地外壳 6设置有散热装置壳体 7,散热装置壳体 7的外 表面设置有与外部空气相通的风道 71。 该风道包括进风风道 711和出风风道 712, 进风装 置 2的冷风进口 81连接或临近进风风道, 出风装置 3的热风出口 82连接或临近出风风道, 形成一条从进风风道 711依次经冷风进口 81、 马达壳体内腔、 热风出口 82到出风风道 712 的与外壳 6的内腔隔离的外通独立空气散热通道。 实施例三
马达如图 8、 9所示, 包括有马达本体 1, 马达本体 1具有输出轴和套接于输出轴的马 达壳体 11, 马达壳体 11设置有散热装置, 散热装置包括进风装置 2和出风装置 3, 进风装 置 2设置于输出轴的一侧, 出风装置 3设置于输出轴的另一侧, 进风装置 2设置有进风孔 13(兼作冷风进口), 出风装置 3设置有热风出口 14, 出风装置 3设置为轴流风扇 301, 轴流 风扇 301固定于马达壳体 11的尾部; 轴流风扇 301的第一端封闭、 第二端设置有一平行于 输出轴的进风口 331, 轴流风扇 301的第二端连接马达壳体 11的尾部的端面, 进风口 331 接至马达壳体内腔的出风孔从而连通马达壳体 11的内腔。 轴流风扇 301又称为离心风机, 当轴流风扇 301工作时产生吸力, 将空气通过进风孔 13吸入马达壳体 11 内, 再从热风出 口 14排出, 因此, 在轴流风扇 301的作用下马达壳体 11形成空气循环, 马达壳体 11实现 风冷的效果。
进风装置 2包括一个圆筒形状的进风罩体 21,进风罩体 21与马达本体 1的一端固定连 接, 进风孔 13开设于进风罩体 21的表面。 当轴流风扇 3转动时产生吸力, 将外界的风由 进风孔 13吸入马达壳体 1 内。 该马达以进风孔 13作为冷风进口, 形成一条从冷风进口经 说 明 书 马达壳体内腔到热风出口的内部的相对隔离的独立空气散热通道, 不受马达之外的器件发 热的影响。
进风孔 13是沿进风罩体 21的圆周方向均匀开设的, 当轴流风扇 3转动时产生吸力, 外界的风可以由进风罩体 21均匀进入马达壳体 1内, 加强风冷的效果。
进风罩体 21是与马达本体 1一体成型的。
热风出口 14开设于轴流风扇 301的一侧表面。 当轴流风扇 3转动时产生吸力, 将外界 的风由进风孔 13吸入马达壳体 1内, 然后再热风出口 14排出。
轴流风扇 301还包括螺钉(图中未画出), 轴流风扇 301设置有定位孔 3011, 马达壳体 1的一端设置有螺纹孔 15, 螺钉穿过定位孔 3011并且与螺纹孔 15螺接将轴流风扇 301固 定于马达壳体 1的一端。
轴流风扇 301 的侧面设置有一用于排出气流的垂直于输出轴的导风筒 3012, 导风筒 3012设置为漏斗形, 导风筒 3012较宽的截面朝外。
具有上述马达碎纸机如图 10和图 11所示, 包括外壳 6和碎纸机头 4, 碎纸机头 4中设 置有传动机构 5和上述马达, 外壳 6设置有散热装置壳体 7, 散热装置壳体 7的外表面设置 有与外部空气相通的风道 71。 该风道 71包括进风风道 711和出风风道 712, 进风装置的冷 风进口连接或临近进风风道 711, 出风装置的热风出口 14连接或临近出风风道 712, 形成 一条从进风风道 711依次经冷风进口、 马达壳体内腔、热风出口到出风风道 712的与外壳 6 的内腔隔离的外通独立空气散热通道。 以上仅是本申请的较佳实施例, 在此基础上的等同技术方案仍落入申请保护范围。 工业应用性
本实用新型通过进风装置将外部空气经冷风进口吸入马达本体内部对转子、 线圈等元 件进行风冷冷却, 然后通过出风装置经热风出口由出风装置排出至外壳以外的外部空气中, 从外界流入到马达壳体的内腔中的冷气流分别与马达的线组、 马达壳体热交换, 快速带走 线组和马达壳体的热量, 降低线组和马达壳体的温度。 进风装置或连同出风装置采用风扇 进行强制风冷, 可以加速空气流动, 从而对马达进行快速降温, 延长了马达的使用寿命。 在马达内部, 形成一条从冷风进口经马达壳体内腔到热风出口的内部的相对隔离的独立空 气散热通道; 在碎纸机中, 进风装置的冷风进口连接或临近进风风道, 出风装置的热风出 口连接或临近出风风道, 形成一条从进风风道依次经冷风进口、 马达壳体内腔、 热风出口 到出风风道的与外壳的内腔隔离的外通独立空气散热通道, 所排出的热空气不会与位于外 壳的内腔的其它部件产生的热空气混合在一起, 而是直接排出到外壳以外的外部空气中, 因而散热效率高。 进风装置和出风装置设在侧方, 其安装结构的设计不受马达输出轴的制 约, 结构简单、 马达的体积小、 易于装配, 便于市场化的推广及应用。 本实用新型可以批 量生产, 具有良好的市场前景。

Claims

WO 2012/041210 , 一 _ k . ,、 PCT/CN2011/080183 权 利 要 求 书
1. 碎纸机, 包括外壳、 碎纸机头, 所述碎纸机头中设置有传动机构和马达, 所述马达 包括有马达本体, 所述马达本体具有输出轴和套接于所述输出轴的马达壳体, 所述马达壳 体设置有散热装置, 所述散热装置包括进风装置和出风装置, 其特征是, 进风装置具有冷 风进口, 出风装置具有热风出口, 所述进风装置设置于所述输出轴的一侧, 所述出风装置 设置于所述输出轴的另一侧, 所述马达壳体设置所述进风装置的位置对应开设有连通马达 壳体内腔的进风孔, 所述马达壳体设置所述出风装置的位置对应开设有连通马达壳体内腔 的出风孔, 形成一条从冷风进口经马达壳体内腔到热风出口的内部的相对隔离的独立空气 散热通道。
2. 根据权利要求 1所述的碎纸机, 其特征是, 所述外壳设置有散热装置壳体, 所述散 热装置壳体设置有与外部空气相通的风道, 该风道包括进风风道和出风风道, 进风装置的 冷风进口连接或临近进风风道, 出风装置的热风出口连接或临近出风风道, 形成一条从进 风风道依次经冷风进口、 马达壳体内腔、 热风出口到出风风道的与外壳的内腔隔离的外通 独立空气散热通道。
3. 根据权利要求 2所述的碎纸机, 其特征是, 所述出风装置设置有风扇。
4. 根据权利要求 1、 2或 3所述的碎纸机, 其特征是, 进风装置设置有风扇。
5. 根据权利要求 4所述的碎纸机, 其特征是, 进风装置设置有进风装置固定件, 进风 装置固定件固定于所述马达壳体, 进风装置固定件在设置于所述进风孔的一侧设置有进风 槽道, 进风槽道连通进风孔和冷风进口。
6. 根据权利要求 5所述的碎纸机, 其特征是, 进风装置固定件的一侧部套设于马达壳 体, 进风孔设置为开设于马达壳体侧面的若干通孔, 进风槽道环绕于马达壳体的外缘, 进 风槽道朝向马达壳体的一侧敞开。
7. 根据权利要求 6所述的碎纸机, 其特征是, 进风槽道的外壁紧贴于马达壳体。
8. 根据权利要求 7所述的碎纸机, 其特征是, 进风槽道的外壁与马达壳体之间设置有 密封垫片。
9. 根据权利要求 5所述的碎纸机, 其特征是, 所述进风装置固定件包括第一进风装置 固定件和第二进风装置固定件, 所述第一进风装置固定件和所述第二进风装置固定件紧密 连接, 所述第一进风装置固定件和所述第二进风装置固定件均为半圆环结构。
10.根据权利要求 7所述的碎纸机, 其特征是, 所述第一进风装置固定件的横断面形状 和所述第二进风装置固定件的横断面形状均为 U型。
11.根据权利要求 5所述的碎纸机, 其特征是, 所述进风装置还设置有风扇基座和进风 罩体, 所述风扇基座的一侧与所述进风装置固定件相连接, 所述风扇基座的另一侧与所述 进风罩体相连接, 所述风扇基座和所述进风罩体之间形成进风腔体, 所述风扇设置于所述 进风腔体内。
12.根据权利要求 11 所述的碎纸机, 其特征是, 所述进风装置固定件与所述风扇基座 一体成型。 WO 2012/041210 , 一 _ k . ,、 PCT/CN2011/080183
权 利 要 求 书
13.根据权利要求 4所述的碎纸机, 其特征是, 出风装置包括出风装置固定件, 出风装 置固定件固定于所述马达壳体, 出风装置固定件在设置于所述出风孔的一侧设置有出风槽 道, 出风槽道连通出风孔和热风出口。
14.根据权利要求 13所述的碎纸机, 其特征是, 所述出风装置固定件包括第一出风装 置固定件和第二出风装置固定件, 所述第一出风装置固定件和所述第二出风装置固定件紧 密连接, 所述第一出风装置固定件和所述第二出风装置固定件均为半圆环结构。
15.根据权利要求 14所述的碎纸机, 其特征是, 所述第一出风装置固定件的横断面形 状和所述第二出风装置固定件的横断面形状均为 U型。
16.根据权利要求 13所述的碎纸机, 其特征是, 所述出风装置包括出风腔体连接件和 出风罩体, 所述出风腔体连接件的一侧与所述出风装置固定件相连接, 所述出风腔体连接 件的另一侧与所述出风罩体相连接, 所述出风腔体连接件具有出风腔体。
17.根据权利要求 16所述的碎纸机, 其特征是, 所述出风装置固定件与所述出风腔体 连接件一体成型。
18.根据权利要求 1所述的碎纸机, 其特征是, 所述出风装置设置为轴流风扇, 所述轴 流风扇固定于马达壳体的尾部; 所述轴流风扇的第一端封闭、 第二端设置有一平行于输出 轴的进风口, 所述轴流风扇的第二端连接马达壳体的尾部的端面, 进风口接至出风孔从而 连通所述马达壳体的内腔。
19.根据权利要求 18所述的碎纸机, 其特征是, 所述进风装置包括一个圆筒形状的进 风罩体, 所述进风罩体与所述马达本体的一端固定连接, 所述进风孔开设于所述进风罩体 的表面作为冷风进口。
20.根据权利要求 19所述的碎纸机, 其特征是, 所述进风孔是沿所述进风罩体的圆周 方向均匀开设的。
21.根据权利要求 18或 19所述的碎纸机, 其特征是, 所述进风罩体是与所述马达本体 一体成型的。
22.根据权利要求 18所述的碎纸机, 其特征是, 所述热风出口开设于所述轴流风扇的 一侧表面。
23.根据权利要求 22所述的碎纸机, 其特征是, 所述出风装置还包括螺钉, 所述轴流 风扇设置有定位孔, 所述马达壳体的一端设置有螺纹孔, 所述螺钉穿过所述定位孔并且与 所述螺纹孔螺接将轴流风扇固定于所述马达壳体的一端。
24.根据权利要求 22或 23所述的碎纸机, 其特征是, 所述轴流风扇的侧面设置有一用 于排出气流的垂直于输出轴的导风筒, 所述导风筒设置为漏斗形, 所述导风筒较宽的截面 朝外。
PCT/CN2011/080183 2010-09-27 2011-09-26 碎纸机 WO2012041210A1 (zh)

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CN201120246575U CN202142951U (zh) 2011-07-13 2011-07-13 一种具有风冷散热装置的马达及碎纸机
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EP2624419A1 (en) 2013-08-07

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