CN222262338U - Heat dissipation device for centrifugal motor - Google Patents

Abstract

The present application provides a heat dissipation device for a centrifugal motor, comprising: a centrifugal motor for driving a centrifugal device to generate centrifugal motion; a cooling pipe, the cooling pipe passes through the front end cover of the centrifugal motor and extends into the housing of the centrifugal motor and passes out from the rear end cover of the centrifugal motor; an exhaust assembly, the exhaust assembly comprising an exhaust pipe and a venturi tube; one end of the exhaust pipe passes through the front end cover of the centrifugal motor and extends into the housing of the centrifugal motor, the venturi tube is located in the housing of the centrifugal motor and is connected to one end of the exhaust pipe located in the housing of the centrifugal motor, and an air inlet is provided in the throat of the venturi tube. The present application accelerates the heat dissipation rate in the housing of the centrifugal motor, improves the heat dissipation efficiency of the centrifugal motor, and prolongs the service life of the centrifugal motor.

Description

Radiating device for centrifugal motor

Technical Field

The application relates to a heat dissipation technology, in particular to a heat dissipation device for a centrifugal motor.

Background

The centrifugal motor is an electromagnetic device for converting or transmitting electric energy according to the law of electromagnetic induction, and has the main effects of converting electric energy into mechanical energy, specifically, generating rotating force through centrifugal force, and being commonly used for driving centrifugal equipment to operate, and can be applied to the fields of industry, agriculture, transportation, household appliances, laboratories, scientific research, medical treatment and the like.

The stator coil and the bearing can generate heat in the long-time running process of the centrifugal motor, and the centrifugal motor is generally arranged in the shell of the centrifugal device, so that the heat generated by the centrifugal motor is not easy to dissipate, and therefore, the centrifugal motor can possibly generate an overheating phenomenon in the long-time running process, the service life of the centrifugal motor can be shortened due to long-time overheating, the working state of the centrifugal motor is unstable, and the centrifugal motor can be burnt when serious. The existing centrifugal motor generally adopts a mode of natural emission such as the arrangement of radiating fins on the shell of the centrifugal motor and the arrangement of radiating holes at the end part of the motor to radiate heat, so that the heat dissipation speed in the shell of the centrifugal motor is slower, and the heat dissipation effect needs to be further improved.

Disclosure of utility model

The application provides a heat dissipation device for a centrifugal motor, which is used for solving the technical problems described in the background art.

In order to solve the technical problems, the application is realized by adopting the following technical scheme:

the application provides a heat dissipating device for a centrifugal motor, comprising:

The centrifugal motor is used for driving the centrifugal equipment to perform centrifugal motion;

the cooling pipeline penetrates through the front end cover of the centrifugal motor, stretches into the shell of the centrifugal motor and penetrates out of the rear end cover of the centrifugal motor;

The air extraction assembly comprises an air extraction pipe and a venturi pipe, one end of the air extraction pipe penetrates through the front end cover of the centrifugal motor and stretches into the shell of the centrifugal motor, the venturi pipe is located in the shell of the centrifugal motor and is communicated with one end of the air extraction pipe located in the shell of the centrifugal motor, and an air inlet is formed in the throat of the venturi pipe.

Optionally, the cooling pipeline comprises a first pipe section, a spiral pipe section and a second pipe section which are sequentially communicated;

The spiral pipe section is located in the shell of the centrifugal motor and surrounds the outer side of the stator assembly in the shell of the centrifugal motor, one end, away from the spiral pipe section, of the first pipe section is located outside the shell of the centrifugal motor and is communicated with the air blowing device, and one end, away from the spiral pipe section, of the second pipe section is located outside the shell of the centrifugal motor.

Optionally, ventilation holes are formed in the spiral pipe section at equal intervals.

Optionally, the air inlet of the air blowing device is communicated with a cooler through an air inlet pipeline, and a cold air outlet of the cooler is communicated with one end, far away from the air blowing device, of the air inlet pipeline.

Optionally, the air extraction assembly further comprises an annular tube rotatably sleeved on a rotating shaft in the shell of the centrifugal motor;

The venturi tubes are in a plurality, the venturi tubes are communicated with the tube body of the annular tube at equal intervals, one end of the exhaust tube is positioned in the shell of the centrifugal motor, one end of the exhaust tube is communicated with the annular tube between the two venturi tubes, and the other end of the exhaust tube penetrates through and extends out of the shell of the centrifugal motor and is connected with an exhaust fan.

Optionally, a plurality of annular heat dissipation grooves are equidistantly arranged on the casing of the centrifugal motor along the length direction of the casing.

Optionally, a filter screen is disposed on each annular heat dissipation groove, and heat dissipation fins are disposed on the outer wall of the casing of the centrifugal motor between every two adjacent annular heat dissipation grooves.

According to the heat dissipation device for the centrifugal motor, heat generated in the shell of the centrifugal motor is exchanged with heat generated in the shell of the centrifugal motor in the operation process of the centrifugal motor through the cooling pipeline, the heat in the shell of the centrifugal motor is pumped out of the shell of the centrifugal motor through the exhaust pipe and the venturi pipe communicated with the exhaust pipe, the temperature in the shell of the centrifugal motor is quickly reduced, the air inlet is formed in the throat of the venturi pipe, the air absorption effect is generated in the throat of the venturi pipe and the flow speed of air is increased due to the fact that the air pressure in the throat of the venturi pipe is lower than that in other pipe sections of the venturi pipe, the air inlet is formed in the throat of the venturi pipe, the heat in the shell of the centrifugal motor is quickly pumped into the venturi pipe through the air inlet and is discharged out of the shell of the centrifugal motor from the exhaust pipe, accordingly the heat dissipation speed in the shell of the centrifugal motor is increased, the heat dissipation efficiency of the centrifugal motor is improved, and the service life of the centrifugal motor is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an internal structure of a heat dissipating device for a centrifugal motor according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a structure in which a vent hole is provided in a spiral pipe section according to an embodiment of the present application;

FIG. 3 is a schematic diagram of an embodiment of an air extraction assembly;

Fig. 4 is a schematic structural view of a centrifugal motor provided by an embodiment of the present application, in which an annular heat dissipation groove is formed outside a casing;

Fig. 5 is a schematic structural diagram of a heat dissipation fin disposed outside a casing of a centrifugal motor and provided with a filter screen on an annular heat dissipation groove according to an embodiment of the present application.

In the figure, 100 parts of centrifugal motor, 101 parts of annular radiating groove, 1011 parts of filter screen, 102 parts of radiating fin, 200 parts of cooling pipeline, 201 parts of first pipe section, 2011 parts of blast device, 202 parts of spiral pipe section, 2021 parts of ventilation hole, 203 parts of second pipe section, 300 parts of air extraction component, 301 parts of air extraction pipe, 3011 parts of exhaust fan, 302 parts of venturi pipe, 3021 parts of air inlet, 303 parts of annular pipe, 400 parts of air inlet pipeline, 401 parts of cooler.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are also within the scope of the application.

Referring to fig. 1 to 4, the present application provides a heat dissipating device for a centrifugal motor, comprising:

The centrifugal motor 100 is used for driving the centrifugal device to perform centrifugal motion, and the centrifugal motor 100 is usually arranged in a shell of the centrifugal device so as to drive the shell of the centrifugal device to perform centrifugal motion, and the centrifugal device can be a centrifugal separator, a blood centrifugal separator and the like.

And a cooling pipe 200 penetrating the front end cover of the centrifugal motor 100 and extending into the housing of the centrifugal motor 100 and penetrating out of the rear end cover of the centrifugal motor 100, wherein a cooling medium is introduced into the cooling pipe 200, and the cooling medium may be air, and heat exchange is performed between the cooling medium in the cooling pipe 200 and heat in the housing of the centrifugal motor 100 during heat dissipation of the centrifugal motor 100, so that heat dissipation efficiency of the centrifugal motor 100 is increased. Both ends of the cooling duct 200 are located outside the housing of the centrifugal apparatus.

The centrifugal motor 100 comprises an air extraction assembly 300, wherein the air extraction assembly 300 comprises an air extraction pipe 301 and a venturi pipe 302, one end of the air extraction pipe 301 penetrates through the front end cover of the centrifugal motor 100 and stretches into the shell of the centrifugal motor 100, the venturi pipe 302 is positioned in the shell of the centrifugal motor 100 and is communicated with one end of the air extraction pipe 301 positioned in the shell of the centrifugal motor 100, and an air inlet 3021 is formed in the throat of the venturi pipe 302. The air pumping assembly 300 is used for pumping heat in the casing of the centrifugal motor 100 out of the casing of the centrifugal motor 100, because the throat of the venturi tube 302 has lower air pressure compared with other tube sections of the venturi tube 302, the throat of the venturi tube 302 generates adsorption effect and leads to the acceleration of the air flow speed, therefore, the throat of the venturi tube 302 is provided with the air inlet 3021, so that the heat in the casing of the centrifugal motor 100 is rapidly pumped into the venturi tube 302 through the air inlet 3021 and is discharged out of the casing of the centrifugal motor 100 from the air pumping tube 301, thereby accelerating the heat dissipation speed in the casing of the centrifugal motor 100, improving the heat dissipation efficiency of the centrifugal motor 100, reducing the possibility of burning each part caused by overhigh local temperature rise in the centrifugal motor 100, and prolonging the service life of the centrifugal motor 100. The number of air inlets 3021 may be plural, and the plurality of air inlets 3021 may be provided at equal intervals around the entire throat of the venturi 302.

According to the heat dissipation device for the centrifugal motor, heat generated in the shell of the centrifugal motor 100 is exchanged with heat generated in the shell of the centrifugal motor 100 in the operation process of the centrifugal motor 100 through the cooling pipeline 200, the temperature in the shell of the centrifugal motor 100 is reduced through the air suction pipe 301 and the venturi 302 communicated with the air suction pipe 301, the temperature in the shell of the centrifugal motor 100 is quickly reduced through the air suction pipe 301 and the venturi 302, the air inlet 3021 is formed in the throat of the venturi 302, and compared with the air pressure in other pipe sections of the venturi 302, the throat of the venturi 302 is enabled to generate adsorption effect and enable the flow speed of air to be increased, and therefore the air inlet 3021 is formed in the throat of the venturi 302, the heat in the shell of the centrifugal motor 100 is quickly pumped into the venturi 302 through the air suction pipe 301 and discharged out of the shell of the centrifugal motor 100, the efficiency of the heat in the shell of the centrifugal motor 100 is improved, the service life of the centrifugal motor 100 is prolonged.

In some embodiments, referring to fig. 1, a cooling pipe 200 in the present application includes a first pipe section 201, a spiral pipe section 202 and a second pipe section 203 that are sequentially connected, specifically, the spiral pipe section 202 is located in a casing of the centrifugal motor 100 and surrounds an outer side of a stator assembly in the casing of the centrifugal motor 100, wherein the spiral pipe section 202 is a preset distance from the outer side of the stator assembly, and the preset distance can be set according to actual needs, so as to avoid that a pipe wall of the spiral pipe section 202 is in direct contact with the outer side of the stator assembly, so that a cooling medium in the spiral pipe section 202 cools the stator assembly without affecting operation of the stator assembly, an end of the first pipe section 201 away from the spiral pipe section 202 is located outside the casing of the centrifugal motor 100 and is connected with a blowing device 2011, and an end of the second pipe section 203 away from the spiral pipe section 202 is located outside the casing of the centrifugal motor 100. Because the heat in the casing of the centrifugal motor 100 is mainly generated by the coil on the stator assembly, and the contact area between the coil section 202 and the stator assembly in the casing of the centrifugal motor 100 is increased, the cooling medium in the coil section 202 is fully contacted with the heat generated in the casing of the centrifugal motor 100 and exchanges heat, so that the temperature in the casing of the centrifugal motor 100 is rapidly reduced, the phenomenon that all parts in the casing of the centrifugal motor 100 are damaged due to local temperature rise and overheat is avoided, the heat dissipation efficiency of the centrifugal motor 100 is improved, and the service life of the centrifugal motor 100 is prolonged. The blower 2011 may be a blower, an axial flow fan, or the like.

In some embodiments, referring to FIG. 2, ventilation holes 2021 are equally spaced on the helical tube segment 202 in the present application. The ventilation hole 2021 makes the cold air provided by the air blowing device 2011 directly dispersed in the casing of the centrifugal motor 100, so that the cold air directly contacts and exchanges heat with the heat in the casing of the centrifugal motor 100, thereby improving the heat exchange efficiency of the cold air and the heat in the casing of the centrifugal motor 100. The number of the ventilation holes 2021 may be plural, and the plural ventilation holes 2021 are equally spaced on the spiral pipe section 202, and the number of the ventilation holes 2021, the pore diameter, etc. may be set according to the length and the pipe diameter of the spiral pipe section 202, so the present application is not limited thereto.

In some embodiments, referring to fig. 1, an air inlet of a blower 2011 of the present application is connected to a cooler 401 through an air inlet pipe 400, and a cold air outlet of the cooler 401 is connected to an end of the air inlet pipe 400 away from the blower 2011. Wherein, because centrifugal motor 100 sets up in centrifugal equipment's casing for centrifugal motion takes place for driving centrifugal equipment, consequently, at the in-process to centrifugal motor 100 dispel the heat, cooler 401 sets up outside centrifugal equipment's casing, and cooler 401 is used for cooling down the air that takes out to in the blast apparatus 2011 for the temperature of the air that takes out to in the cooling duct 200 through blast apparatus 2011 is lower, and the lower air of temperature can cool down in the casing of centrifugal motor 100 fast, thereby has improved centrifugal motor 100's radiating efficiency.

In some embodiments, referring to fig. 3, the air extraction assembly 300 of the present application further includes an annular tube 303 rotatably sleeved on the rotating shaft in the housing of the centrifugal motor 100, wherein the annular tube 303 can rotate in the housing of the centrifugal motor 100 along with the rotation of the rotating shaft, and the diameter of the annular tube 303 can be set according to actual needs, so the present application is not limited thereto in detail.

Specifically, there are a plurality of venturi tubes 302, the plurality of venturi tubes 302 are equally spaced and communicated on the tube body of the annular tube 303, one end of the air extracting tube 301 is located on the annular tube 303 between the two venturi tubes 302, and the other end of the air extracting tube 301 penetrates and extends out of the housing of the centrifugal motor 100 and is connected with an air extracting fan 3011. The exhaust fan 3011 is disposed outside the casing of the centrifugal device, the other end of the exhaust pipe 301 (i.e., the end of the exhaust pipe 301 away from the annular pipe 303) sequentially penetrates through the casing of the centrifugal motor 100, the casing of the centrifugal device, and extends out of the casing of the centrifugal device, the pipe body of the exhaust pipe 301 is rotationally connected with the casing of the centrifugal motor 100 and the casing of the centrifugal device, the plurality of venturi pipes 302 rotate along with the rotation of the annular pipe 303, and the plurality of venturi pipes 302 can increase the heat dissipation efficiency in the casing of the centrifugal motor 100.

In some embodiments, referring to fig. 4 and 5, a plurality of annular heat dissipation grooves 101 are equally spaced along the length of a casing of a centrifugal motor 100 according to the present application. Wherein the annular heat dissipation groove 101 enables heat in the casing of the centrifugal motor 100 to be rapidly dissipated outside the casing thereof, thereby improving the heat dissipation efficiency in the casing of the centrifugal motor 100. The width, number, etc. of the annular heat dissipation grooves 101 may be set according to the size of the centrifugal motor 100, and thus the present application is not particularly limited herein.

In some embodiments, referring to fig. 5, a filter screen 1011 is provided on each annular heat sink 101 in the present application, and a heat dissipation fin 102 is provided on an outer wall of a casing of the centrifugal motor 100 between every two adjacent annular heat sinks 101. Wherein, filter screen 1011 and annular heat sink 101 phase-match, the heat in the casing of filter screen 1011 can supply centrifugal motor 100 to scatter and disappear outside centrifugal motor 100's the casing, filters the outside air of centrifugal motor 100's casing simultaneously and avoids it to carry impurity to get into centrifugal motor 100's casing in, influences centrifugal motor 100's normal operating of each part in the casing, and then has ensured centrifugal motor 100's life. The filter screen 1011 may be made of stainless steel, and the specification may be set according to actual needs, so the present application is not particularly limited thereto. In addition, since the centrifugal motor 100 is generally disposed in the casing of the centrifugal apparatus, that is, the casing of the centrifugal apparatus may protect the centrifugal motor 100, the arrangement of the annular heat dissipation groove 101 may quickly dissipate heat in the centrifugal motor 100 to the outside of the casing thereof, and the operation of each component in the centrifugal motor 100 may not be affected by the arrangement of the annular heat dissipation groove 101.

In addition, the heat dissipation fins 102 increase the contact area between the housing of the centrifugal motor 100 and the air, so that heat in the housing of the centrifugal motor 100 and the air exchange heat quickly, thereby achieving the purpose of enhancing heat transfer and improving the heat dissipation efficiency of the heat in the housing of the centrifugal motor 100. The number of the heat dissipation fins 102 can be set according to actual needs, and the present application is not limited thereto.

It should be noted that the above embodiments are merely for illustrating the technical solution of the present application, and not for limiting the same, and although the present application has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not deviate the essence of the corresponding technical solution from the scope of the technical solution of the embodiments of the present application.

Claims (7)

1. A heat dissipation device for a centrifugal motor, comprising: A centrifugal motor (100) is used to drive the centrifugal device to produce centrifugal motion; A cooling pipe (200), wherein the cooling pipe (200) passes through the front end cover of the centrifugal motor (100), extends into the housing of the centrifugal motor (100), and passes out from the rear end cover of the centrifugal motor (100); An air extraction component (300), the air extraction component (300) comprising an air extraction pipe (301) and a venturi tube (302); one end of the air extraction pipe (301) passes through the front end cover of the centrifugal motor (100) and extends into the housing of the centrifugal motor (100); the venturi tube (302) is located in the housing of the centrifugal motor (100) and is connected to one end of the air extraction pipe (301) located in the housing of the centrifugal motor (100); and an air inlet (3021) is provided at the throat of the venturi tube (302). 2. The heat dissipation device for a centrifugal motor according to claim 1, characterized in that the cooling pipe (200) comprises a first pipe section (201), a spiral pipe section (202) and a second pipe section (203) which are connected in sequence; The spiral pipe segment (202) is located inside the casing of the centrifugal motor (100) and surrounds the outside of the stator assembly inside the casing of the centrifugal motor (100); one end of the first pipe segment (201) away from the spiral pipe segment (202) is located outside the casing of the centrifugal motor (100) and is connected to a blower device (2011); and one end of the second pipe segment (203) away from the spiral pipe segment (202) is located outside the casing of the centrifugal motor (100). 3. The heat dissipation device for a centrifugal motor according to claim 2, characterized in that ventilation holes (2021) are opened on the spiral pipe section (202) at equal intervals. 4. The heat dissipation device for a centrifugal motor according to claim 2 is characterized in that the air inlet of the blowing device (2011) is connected to a cooler (401) through an air inlet duct (400), and the cold air outlet of the cooler (401) is connected to an end of the air inlet duct (400) away from the blowing device (2011). 5. The heat dissipation device for a centrifugal motor according to claim 1, characterized in that the air extraction component (300) further comprises an annular tube (303) rotatably sleeved on a rotating shaft in a housing of the centrifugal motor (100); There are a plurality of Venturi tubes (302), and the plurality of Venturi tubes (302) are connected to the tube body of the annular tube (303) at equal intervals. One end of the exhaust pipe (301) is located inside the housing of the centrifugal motor (100), and the other end is connected to the annular tube (303) between two of the Venturi tubes (302). The other end of the exhaust pipe (301) passes through and extends out of the housing of the centrifugal motor (100) and is connected to an exhaust fan (3011). 6. The heat dissipation device for a centrifugal motor according to any one of claims 1 to 5, characterized in that a plurality of annular heat dissipation grooves (101) are provided on the casing of the centrifugal motor (100) at equal intervals along its length direction. 7. The heat dissipation device for a centrifugal motor according to claim 6, characterized in that a filter screen (1011) is provided on each of the annular heat dissipation grooves (101), and a heat dissipation fin (102) is provided on the outer wall of the shell of the centrifugal motor (100) between each two adjacent annular heat dissipation grooves (101).