CN202142951U - Motor and paper shredder with air-cooled heat dissipation device - Google Patents

Abstract

A motor with an air-cooled heat dissipation device and a paper shredder are disclosed, wherein the motor comprises a motor body, the motor body is provided with an output shaft and a motor shell sleeved on the output shaft, the motor shell is provided with the heat dissipation device, the heat dissipation device comprises an air inlet device and an air outlet device, the air inlet device is arranged on one side of the output shaft, the air outlet device is arranged on the other side of the output shaft, the air inlet device is provided with an air inlet hole, the air outlet device is provided with an air outlet hole, the air outlet device is arranged as an axial flow fan, and the axial flow; the axial flow fan is provided with an air inlet which is communicated with the inner cavity of the motor shell. The utility model discloses an induced draft device with outside air through the fresh air inlet force inhale motor body inside carry out air-cooled cooling to elements such as rotor, coil, then discharge to the outside air through motor housing's exhaust vent to accomplish the inside hot-air of motor body and outside air's heat exchange. The cooling device has the characteristics of good cooling effect, long service life, simple structure and easiness in assembly.

Description

Motor and paper shredder with air-cooled heat dissipation device

technical field

The utility model relates to the technical field of paper shredders, in particular to a motor with a heat dissipation device and a paper shredder which can enhance the heat dissipation and cooling effect of the motor when the motor is running.

Background technique

Motor, also known as electric motor, is an electromagnetic device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction. Its main function is to generate driving torque, so as to become the power source of electrical appliances or various machinery. Since the operation of the motor is caused by electromagnetic cutting, the effect of the current resistance will definitely generate heat. The greater the current, the more heat will be generated. If it continues to run, it will accumulate a large amount of heat energy and affect the overall performance of the motor, thereby reducing the operation of the motor. efficiency, which in turn increases the operating cost of the motor.

In order to solve the above problems, the Chinese utility model patent with the authorized announcement number CN 201290050 disclosed a "motor cooling device" on August 12, 2009. A water tank and a pump, the housing is equipped with a water inlet and a water outlet respectively connected to the cooling water tank through external pipelines to form a circuit, and the pump is connected between the cooling water tank and the water inlet; the housing It is sealed with the motor body, and there is a water holding part between the shell and the motor body. When the motor is running, the pump draws water from the cooling water tank and drives it into the water inlet to enter the water holding part. The motor body is cooled by water cooling, and then returned to the cooling water tank through the water outlet to form a cycle.” The motor cooling device is mainly water-cooled, and the cooling water supplied by the connected cooling water tank can run the motor The heat energy generated in the cooling water is cooled by the cooling water, and the cooling water is supplied in a circulating way through heat exchange through the cooling water tank, which can improve the efficiency of heat dissipation, improve the operating efficiency of the motor, and reduce the operating cost of the motor. However, the motor cooling device with this water-cooling structure has a relatively complicated structure, and an external cooling water circulation pipe needs to be provided, which is inconvenient to be used in combination with other mechanical components.

In addition, the rotor of the motor is provided with several winding groups. When the motor is working, the winding groups of the rotor generate the most heat, followed by the winding groups of the stator. The heat is conducted between the rotor and the motor shell through air, and the rotor and The heat conduction coefficient between the shells of the motor is low, and the heat conduction speed is slow, while the technical solution described in the CN201290050 patent is to dissipate heat from the shells of the motor, and the heat dissipation effect is relatively poor.

A motor cooling device in the prior art has a structure of directly opening cooling holes on the motor casing. Although the motor cooling device of this structure can discharge the heat inside the motor through the cooling holes, due to the heat dissipation The discharge is formed by the natural flow of air, so the heat dissipation efficiency is low, and it is easier to accumulate heat inside the motor; another structure of the motor cooling device is to surround the radiator around the periphery of the motor casing, and connect the radiator to the motor. The casing is closely fitted. Although the motor heat dissipation device of this structure increases the heat dissipation area and enhances the heat dissipation effect, the volume is relatively large, which makes the motor occupy a large space; another motor heat dissipation device is located at the end of the motor output shaft. Adding a fan, due to the high-speed continuous operation of the motor output shaft, it is easy to cause the fan to fall off from the motor output shaft due to continuous vibration, causing machine failure.

Therefore, in view of the deficiencies in the prior art, it is urgent to provide a motor with an air-cooled heat dissipation device. The motor with a heat dissipation device has a good cooling effect, can realize rapid cooling of the motor, has a long service life, a simple structure, and is easy to use. Assembly, easy to promote and apply in the market.

There is also an urgent need to provide a paper shredder, which has a motor with a heat dissipation device, has a good cooling effect, can realize rapid cooling of the motor, has the advantages of long continuous shredding time, short motor recovery time, long service life, and simple structure , Easy to assemble, easy to promote and apply in the market.

Utility model content

One of the purposes of the utility model is to avoid the deficiencies in the prior art and provide a motor with an air-cooled heat dissipation device. The motor with a heat dissipation device has a good cooling effect, can realize rapid cooling of the motor, and has a long service life. It is long, simple in structure, easy to assemble, and convenient for market promotion and application.

The second purpose of the utility model is to avoid the deficiencies in the prior art and provide a paper shredder, the paper shredder has a motor with a heat dissipation device, the cooling effect is good, the motor can be cooled quickly, and it has continuous shredding. It has the characteristics of long paper time, short motor recovery time, long service life, simple structure, easy assembly, and easy market promotion and application.

In order to achieve the above object, the utility model adopts the following technical solutions:

A motor with an air-cooled heat dissipation device includes a motor body, the motor body has an output shaft and a motor housing sleeved on the output shaft, the motor housing is provided with a heat dissipation device, and the heat dissipation device includes an air inlet device and an air outlet device, the air inlet device is arranged on one side of the output shaft, the air outlet device is arranged on the other side of the output shaft, the air inlet device is provided with an air inlet hole, The air outlet device is provided with an air outlet hole, and the air outlet device is set as an axial flow fan, and the axial flow fan is fixed at the tail of the motor housing; the first end surface of the axial flow fan is closed, and the second end surface is arranged There is an air inlet parallel to the output shaft, the second end surface of the axial flow fan is connected to the end surface of the rear part of the motor housing, and the air inlet communicates with the inner cavity of the motor housing.

The air intake device includes a cylindrical air intake cover, which is fixedly connected to one end of the motor body, and the air intake hole is opened on the surface of the air intake cover.

The air inlet holes are evenly opened along the circumferential direction of the air inlet cover.

The air intake cover is integrally formed with the motor body.

The air outlet hole is opened on one side surface of the axial flow fan.

The axial flow fan also includes a screw, the axial flow fan is provided with a positioning hole, and one end of the motor casing is provided with a threaded hole, the screw passes through the positioning hole and is screwed with the threaded hole to screw the shaft The flow fan is fixed at one end of the motor housing.

The side of the axial flow fan is provided with an air guiding cylinder perpendicular to the output shaft for discharging airflow, the air guiding cylinder is arranged in a funnel shape, and the wider section of the air guiding cylinder faces outward.

The utility model also provides a paper shredder, which includes a shell and a paper shredder head, and the paper shredder head is provided with a transmission mechanism and a motor, wherein the motor is the above-mentioned motor with an air-cooled heat dissipation device, The housing is provided with a heat sink housing, and the outer surface of the heat sink housing is provided with an air duct communicating with the outside air.

Beneficial effects of the utility model: the utility model has a motor and a paper shredder with an air-cooled heat dissipation device, wherein the motor includes a motor body, and the motor body has an output shaft and a motor casing sleeved on the output shaft, and the motor casing A heat dissipation device is provided. The heat dissipation device includes an air inlet device and an air outlet device. The air inlet device is arranged on one side of the output shaft, and the air outlet device is arranged on the other side of the output shaft. There is an air inlet hole, and the position where the air outlet device is installed on the motor housing is provided with an air outlet hole. With respect to the output shaft of the drive device, the center line of the output shaft of the motor body is perpendicular to the plane where the wind wheel rotates. Compared with the prior art, the motor with heat dissipation device of the present utility model uses the air suction device provided by the air outlet device to force the external air into the motor body through the air inlet hole of the motor casing to cool the rotor, coil and other components. After cooling, it is discharged into the outside air through the air outlet of the motor casing, thereby completing the heat exchange between the hot air inside the motor body and the outside air. The wind wheel is used for forced air cooling, which can accelerate the air flow, thereby rapidly cooling the motor, prolonging the service life of the motor, and the structure is simple, the motor is small in size, easy to assemble, and convenient for market promotion and application; the utility model The paper shredder adopts the motor with air-cooled heat dissipation device. Because the motor with air-cooled heat dissipation device has the above advantages, the service life of the paper shredder is prolonged, and the phenomenon of motor burnout and machine failure caused by excessive motor temperature is reduced. produce.

Description of drawings

Utilize accompanying drawing to further illustrate the utility model, but the embodiment in the accompanying drawing does not constitute any restriction to the utility model, for those of ordinary skill in the art, under the premise of not paying creative work, also can obtain according to following accompanying drawing Additional drawings.

FIG. 1 is a structural schematic diagram of a motor with an air-cooled heat dissipation device of the present invention.

Fig. 2 is a structural schematic diagram of an air outlet device of a motor with an air-cooled heat dissipation device according to the present invention.

Fig. 3 is a schematic diagram of the internal structure of a paper shredder of the present invention.

Fig. 4 is a schematic diagram of the external structure of a paper shredder of the present invention.

Figure 1, Figure 2, Figure 3 and Figure 4 include: 1—motor body, 11—motor housing, 13—air inlet hole, 14—air outlet hole, 15—threaded hole, 2— —Air inlet device, 21——Air inlet cover, 3——Air outlet device, 31——Axial flow fan, 331——Air inlet, 311——Positioning hole, 312——Air guide tube, 4——Broken Paper machine head, 5—transmission mechanism, 6—outer shell, 7—radiating device shell, 71—air duct.

Detailed ways

The utility model is further described in conjunction with the following examples.

Embodiment one

A motor with an air-cooled heat dissipation device of the present invention, as shown in Figure 1 and Figure 2, includes a motor body 1, the motor body 1 has an output shaft and a motor housing 11 sleeved on the output shaft, the motor housing 11 is provided with a heat dissipation device, the heat dissipation device includes an air inlet device 2 and an air outlet device 3, the air inlet device 2 is arranged on one side of the output shaft, the air outlet device 3 is arranged on the other side of the output shaft, and the air inlet device 2 is provided with The air inlet hole 13, the air outlet device 3 is provided with an air outlet hole 14, the air outlet device 3 is set as an axial flow fan 31, and the axial flow fan 31 is fixed on the tail of the motor housing 11; the first end face of the axial flow fan 31 is closed, The second end surface is provided with an air inlet 331 parallel to the output shaft. The second end surface of the axial flow fan 31 is connected to the end surface of the tail of the motor housing 11 , and the air inlet 331 communicates with the inner cavity of the motor housing 11 . The axial flow fan 31 is also called a centrifugal fan. When the axial flow fan 31 works, it generates suction, sucks air into the motor housing 11 through the air inlet hole 13, and then discharges it from the air outlet hole 14. Therefore, in the axial flow fan 31 Under the action, the motor casing 11 forms air circulation, and the motor casing 11 realizes the effect of air cooling.

The air intake device 2 includes a cylindrical air intake cover 21 , which is fixedly connected to one end of the motor body 1 , and the air intake hole 13 is opened on the surface of the air intake cover 21 . When the axial flow fan 3 rotates, a suction force is generated, and external wind is sucked into the motor casing 1 through the air inlet hole 13 .

The air inlet hole 13 is evenly opened along the circumferential direction of the air inlet cover body 21. When the axial flow fan 3 rotates, a suction force is generated, and the outside wind can evenly enter the motor housing 1 through the air inlet cover body 21, thereby enhancing the air-cooling effect. Effect.

The air intake cover 21 is integrally formed with the motor body 1 .

The outlet hole 14 is opened on one side surface of the axial fan 31 . When the axial flow fan 3 rotates, a suction force is generated, and the external wind is sucked into the motor housing 1 through the air inlet hole 13 , and then discharged through the air outlet hole 14 .

The axial flow fan 31 also includes screws (not shown in the figure), the axial flow fan 31 is provided with a positioning hole 311, and one end of the motor housing 1 is provided with a threaded hole 15, and the screw passes through the positioning hole 311 and is screwed with the threaded hole 15 The axial fan 31 is fixed on one end of the motor casing 1 .

The side of the axial flow fan 31 is provided with an air guide tube 312 perpendicular to the output shaft for exhausting the airflow. The air guide tube 312 is arranged in a funnel shape, and the wider section of the air guide tube 312 faces outward.

Embodiment two

The utility model also provides a paper shredder, as shown in Fig. 3 and Fig. 4, comprising a casing 6 and a paper shredder head 4, and a transmission mechanism 5 and a motor are arranged in the paper shredder head 4, wherein the motor is used for implementing In the motor with an air-cooled heat sink described in Example 1, the housing 6 is provided with a heat sink housing 7, and the outer surface of the heat sink housing 7 is provided with an air duct 71 communicating with the outside air. The air duct 71 corresponds to the air inlet hole 13 and the air outlet hole 14 in the motor with the air cooling heat dissipation device. The service life of the paper shredder is extended and the comprehensive performance is good.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art Personnel should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the utility model.

Claims (8)

1. A motor with an air-cooled heat dissipation device, comprising a motor body, the motor body has an output shaft and a motor casing sleeved on the output shaft, the motor casing is provided with a heat dissipation device, and the heat dissipation The device includes an air inlet device and an air outlet device, the air inlet device is arranged on one side of the output shaft, the air outlet device is arranged on the other side of the output shaft, and the air inlet device is provided with an air inlet The air outlet device is provided with an air outlet hole, and it is characterized in that: the air outlet device is set as an axial flow fan, and the axial flow fan is fixed at the tail of the motor housing; the first end surface of the axial flow fan The closed, second end surface is provided with an air inlet parallel to the output shaft, the second end surface of the axial flow fan is connected to the end surface of the tail of the motor housing, and the air inlet communicates with the inner cavity of the motor housing. 2. The motor with heat dissipation device according to claim 1, characterized in that: the air intake device comprises a cylindrical air intake cover, and the air intake cover is fixedly connected to one end of the motor body , the air inlet hole is opened on the surface of the air inlet cover. 3 . The motor with heat dissipation device according to claim 2 , wherein the air inlet holes are evenly opened along the circumferential direction of the air inlet cover. 4 . 4. The motor with heat dissipation device according to claim 2 or 3, characterized in that: the air intake cover is integrally formed with the motor body. 5 . The motor with heat dissipation device according to claim 1 , wherein the air outlet hole is opened on one side surface of the axial flow fan. 6 . 6. The motor with heat dissipation device according to claim 5, characterized in that: the air outlet device further includes screws, 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 into the threaded hole to fix the axial flow fan to one end of the motor housing. 7. The motor with heat dissipation device according to claim 5 or 6, characterized in that: the side of the axial flow fan is provided with an air guide tube perpendicular to the output shaft for exhausting the air flow, and the air guide tube is set It is funnel-shaped, and the wider section of the air guide tube faces outward. 8. A paper shredder, comprising a shell and a paper shredder head, the paper shredder head is provided with a transmission mechanism and a motor, characterized in that: the motor is the one described in any one of claims 1 to 7 For a motor with an air-cooled heat dissipation device, the casing is provided with a heat dissipation device housing, and an air duct communicating with the outside air is provided on the outer surface of the heat dissipation device housing.

Images