CN112104140A - Enhanced heat dissipation type double-frequency-conversion integrated variable frequency motor - Google Patents
Enhanced heat dissipation type double-frequency-conversion integrated variable frequency motor Download PDFInfo
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- CN112104140A CN112104140A CN202010905348.0A CN202010905348A CN112104140A CN 112104140 A CN112104140 A CN 112104140A CN 202010905348 A CN202010905348 A CN 202010905348A CN 112104140 A CN112104140 A CN 112104140A
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- motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a heat dissipation enhancing type double-frequency-conversion integrated variable frequency motor, and relates to the technical field of motors. The invention comprises a motor body and a protective shell; the inner peripheral side surface of the protective shell is fixedly connected with a frequency converter fixing rod, and one end of the frequency converter fixing rod is fixedly connected with a frequency converter host; the frequency converter host comprises a frequency converter host box; one end of the micro rotating shaft is fixedly connected with a micro fan; a double-frequency conversion control panel is fixedly arranged in the frequency converter host; the circumferential side surface of the motor body is axially provided with a cylindrical diversion hole; the inside of the columnar diversion hole is communicated with the inside of the protective shell. According to the invention, through the design of the protective shell, the frequency converter host box, the main rotating shaft, the micro rotating shaft and the double frequency conversion control panel, the integration of the motor and the frequency converter can be realized, the independent frequency conversion control of the motor and the heat dissipation fan is convenient, a large amount of use space is saved, the production cost is greatly reduced, and meanwhile, the efficient heat dissipation effect of the motor is effectively ensured.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to an enhanced heat dissipation type double-frequency-conversion integrated variable frequency motor.
Background
An electric machine is a device that converts electrical energy into mechanical energy. The electromagnetic power generating device utilizes an electrified coil to generate a rotating magnetic field and acts on a rotor to form magnetoelectric power rotating torque. The motors are divided into direct current motors and alternating current motors according to different power supplies, and most of the motors in the power system are alternating current motors which can be synchronous motors or asynchronous motors. The motor mainly comprises a stator and a rotor, and the direction of the forced movement of the electrified conducting wire in a magnetic field is related to the current direction and the magnetic induction line direction. During the use process of the motor, the rotating speed of the motor is often required to be regulated according to actual requirements, and a frequency converter is required.
In the traditional frequency conversion control of the motor, a frequency converter cabinet is arranged near the motor, and the frequency conversion control of the motor is carried out by using a cable, so that the mode is troublesome to operate and occupies a large amount of space; the motor can generate a large amount of heat in the using process, most of the existing motors can radiate heat through the fan carried by the motor, and the fan and the motor rotating shaft are of an integrated structure; in addition, the existing motor can not adjust the rotating speed according to the temperature of the motor, thereby protecting the motor. Therefore, we have developed a dual-frequency conversion integrated variable frequency motor with enhanced heat dissipation to solve the above problems.
Disclosure of Invention
The invention aims to provide a heat dissipation enhancing type double-frequency-conversion integrated variable frequency motor, which solves the problems that the existing frequency converter cabinet occupies a large space and is troublesome to operate, a rotating shaft and a fan of the existing motor are of an integrated structure, and the independent frequency conversion control of the rotating shaft and the fan of the motor cannot be realized, so that heat cannot be rapidly and conveniently dissipated, the service life and the working efficiency of the motor are influenced, and the rotating speed cannot be adjusted according to the temperature of the motor through the design of a micro fan, a double-frequency-conversion control panel, a cylindrical flow guide hole, a heat insulation sheet, a semiconductor refrigerating sheet and a temperature sensor.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a heat dissipation enhancing type double-frequency-conversion integrated variable frequency motor which comprises a motor body and a protective shell; one opposite side surface of the motor body is rotatably connected with a main rotating shaft; the peripheral side surface of the protective shell is fixedly connected with the peripheral side surface of the motor body through bolts; the side surface of the inner periphery of the protective shell is fixedly connected with a plurality of frequency converter fixing rods, and one end of each frequency converter fixing rod is fixedly connected with a frequency converter host; the frequency converter host comprises a frequency converter host box; a mounting hole is formed in one side face of the frequency converter main machine box, and a micro rotating shaft is in clearance fit in the mounting hole; one end of the micro rotating shaft is fixedly connected with a micro fan; a double-frequency conversion control panel is fixedly arranged in the frequency converter host; the circumferential side surface of the motor body is axially provided with a plurality of cylindrical flow guide holes; the interior of the cylindrical diversion hole is communicated with the interior of the protective shell.
Furthermore, a micro motor is fixedly arranged on the inner side surface of the frequency converter main machine box; the output end of the micro motor is fixedly connected with one end of the micro rotating shaft.
Furthermore, the frequency converter main machine also comprises a frequency converter main machine box cover; and the frequency converter main machine box cover is fixedly connected with the frequency converter main machine box through a bolt.
Furthermore, a heat insulation sheet is fixedly mounted on one side surface of the motor body.
Furthermore, a semiconductor refrigerating sheet is fixedly connected to one side face of the box cover of the frequency converter main machine; one side of the semiconductor refrigerating sheet is fixedly connected with one side of the heat insulation sheet.
Furthermore, a mounting hole is formed in the side face of the periphery of the frequency converter main machine box, and a temperature sensor is fixedly mounted in the mounting hole; one end of the temperature sensor is positioned in the frequency converter host; the other end of the temperature sensor is positioned in the inner cavity of the motor body.
Furthermore, a plurality of air inlets are formed in one side surface of the protective shell; a dust screen is fixedly arranged on the inner side surface of the protective shell; the dust screen is opposite to the air inlet hole.
Further, a first driving mechanism is fixedly installed between the double-frequency-conversion control panel and the motor body; and a second driving mechanism is fixedly arranged between the double-frequency-conversion control panel and the micro motor.
The invention has the following beneficial effects:
1. according to the invention, through the design of the protective shell, the frequency converter host box, the main rotating shaft, the micro rotating shaft and the double frequency conversion control panel, the integration of the motor and the frequency converter can be realized, the independent frequency conversion control of the motor and the heat dissipation fan is convenient, a large amount of use space is saved, the production cost is greatly reduced, and meanwhile, the efficient heat dissipation effect of the motor is effectively ensured.
2. According to the invention, through the design of the micro fan, the cylindrical flow guide hole, the air inlet hole, the semiconductor refrigerating sheet, the heat insulation sheet and the temperature sensor, the efficient heat dissipation of the motor and the frequency converter can be realized, the rapid circulation of air in the motor is increased, meanwhile, the control on the internal temperature of the motor is facilitated, the regulation on the rotating speed of the motor is facilitated, and the overheating phenomenon of the motor is prevented.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an exploded view of a heat dissipation enhanced double-frequency-conversion integrated variable frequency motor;
FIG. 2 is a side view of a structure of the present invention;
FIG. 3 is a longitudinal structural cross-sectional view of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-a motor body, 101-a protective shell, 102-a main rotating shaft, 103-a frequency converter host, 104-a frequency converter host box, 105-a micro rotating shaft, 106-a micro fan, 107-a double-frequency-conversion control panel, 108-a cylindrical diversion hole, 109-a micro motor, 110-a frequency converter host box cover, 111-a heat insulation sheet, 112-a semiconductor refrigeration sheet, 113-a temperature sensor and 114-an air inlet hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the invention relates to a heat dissipation enhancing type double-frequency conversion integrated variable frequency motor, which comprises a motor body 1 and a protective shell 101;
one opposite side surface of the motor body 1 is rotatably connected with a main rotating shaft 102;
the peripheral side surface of the protective shell 101 is fixedly connected with the peripheral side surface of the motor body 1 through bolts;
the inner peripheral side surface of the protective shell 101 is fixedly connected with a plurality of frequency converter fixing rods, and one end of each frequency converter fixing rod is fixedly connected with a frequency converter host machine 103;
the frequency converter host machine 103 comprises a frequency converter host machine box 104; a mounting hole is formed in one side face of the frequency converter main machine box 104, and a micro rotating shaft 105 is in clearance fit in the inner part of the mounting hole; one end of the micro rotating shaft 105 is fixedly connected with a micro fan 106; by the operation of the micro fan 106, negative pressure is formed inside the protective casing 101, so that external cold air is brought into the protective casing 101;
a double-frequency-conversion control panel 107 is fixedly arranged in the frequency converter host machine 103; the frequency converter main machine box 104 can play a certain protection role on the double frequency conversion control panel 107 to prevent dust interference;
a plurality of cylindrical diversion holes 108 are axially formed in the circumferential side surface of the motor body 1; the interior of the cylindrical diversion hole 108 is communicated with the interior of the protective shell 101; outside cold air is brought into protective housing 101 through micro fan 106 inside back, flows along cylindricality water conservancy diversion hole 108 to distribute away the heat that motor body 1 produced fast, guarantee the high-efficient operation that lasts of motor.
As shown in fig. 1 and fig. 3, a micro motor 109 is fixedly installed on an inner side surface of the frequency converter main unit box 104; the output end of the micro motor 109 is fixedly connected with one end of the micro rotating shaft 105; the frequency converter main machine 103 also comprises a frequency converter main machine box cover 110; the frequency converter main machine box cover 110 is fixedly connected with the frequency converter main machine box 104 through bolts; a heat insulation sheet 111 is fixedly installed on one side surface of the motor body 1, so that heat of the motor body 1 can be effectively prevented from being transmitted to the frequency converter host machine 103, and interference on normal use of the frequency converter host machine 103 is avoided.
As shown in fig. 1, a semiconductor refrigeration sheet 112 is fixedly connected to one side surface of the cover 110 of the main unit box of the frequency converter; one side of the semiconductor refrigerating sheet 112 is fixedly connected with one side of the heat insulation sheet 111; through the arrangement of the semiconductor refrigerating sheet 112, heat generated during the operation of the dual-frequency-conversion control panel 107 can be quickly dissipated, and the normal operation of the dual-frequency-conversion control panel 107 is ensured; the peripheral side surface of the frequency converter main machine box 104 is provided with a mounting hole, and a temperature sensor 113 is fixedly arranged in the mounting hole; one end of the temperature sensor 113 is positioned inside the frequency converter main machine 103; the other end of the temperature sensor 113 is positioned in the inner cavity of the motor body 1, so that the control of heat in the motor body 1 is facilitated.
As shown in fig. 1 and 3, a plurality of air inlets 114 are formed on one side surface of the protective casing 101; a dust screen is fixedly arranged on one inner side surface of the protective shell 101; the dust screen is opposite to the air inlet hole 114; utilize the dust screen can play fine guard action to the inside converter host computer 103 of protective housing 101, avoid the dust to disturb the normal work of converter host computer 103, prolong the life of converter host computer 103.
As shown in fig. 2-3, a first driving mechanism is fixedly installed between the dual-frequency-conversion control panel 107 and the motor body 1; a second driving mechanism is fixedly arranged between the double-frequency-conversion control panel 107 and the micro motor 109; when the output efficiency of the motor body 1 is low and the generated heat is large, the dual frequency conversion control panel 107 can control the micro fan 106 to operate rapidly through the second driving mechanism, so as to increase the air circulation. The heat dissipation effect is improved.
The working principle of the embodiment is as follows: when the motor body 1 and the double-frequency-converter control panel 107 are both in a working state, the motor body 1 and the double-frequency-converter control panel 107 both generate certain heat which needs to be dissipated out quickly in time; the rotating speed of the main rotating shaft 102 can be controlled according to the requirement through the double-frequency converter control panel 107, so that the output efficiency of the motor is controlled; when the main shaft 102 rotates fast to output, and the output efficiency is high, the generated heat is less, at this time, the second driving mechanism is controlled by the double-frequency converter control panel 107, the micro fan 106 rotates at a medium-low speed by using the second driving mechanism, and a good heat dissipation effect can be ensured while saving electric energy, when the output efficiency of the motor body 1 is low, a large amount of heat is generated and needs to be dissipated fast, at this time, the second driving mechanism is controlled by the double-frequency converter control panel 107, the micro fan 106 rotates at a high speed by using the second driving mechanism, and the air circulation in the protective casing 101 and the motor body 1 is accelerated, so that the fast heat dissipation of the motor body 1 and the frequency converter main machine 103 is realized, the normal use of the motor body and the frequency converter main machine is ensured, the service life of the motor body is prolonged, by arranging the semiconductor refrigeration piece 112 on the frequency converter main machine box cover 110, the heat generated in the operation process of the frequency, thereby prolong the life of two frequency converter control panel 107, increase the safety in utilization, the inside temperature of motor body 1 passes through temperature sensor 113 and transmits for two frequency converter control panel 107, two frequency converter control panel 107 carries out the regulation of motor speed according to the inside temperature of motor body 1 again, the heat on the motor body 1 is effectively avoided toward transmitting on the converter host computer 103 in setting up of heat shield 111, the life of two frequency converter control panel 107 has been guaranteed.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. A heat dissipation enhancing type double-frequency-conversion integrated variable frequency motor comprises a motor body (1) and a protective shell (101); the method is characterized in that:
one opposite side surface of the motor body (1) is rotatably connected with a main rotating shaft (102);
the peripheral side surface of the protective shell (101) is fixedly connected with the peripheral side surface of the motor body (1) through bolts;
the inner peripheral side surface of the protective shell (101) is fixedly connected with a plurality of frequency converter fixing rods, and one end of each frequency converter fixing rod is fixedly connected with a frequency converter host (103);
the frequency converter host (103) comprises a frequency converter host box (104); a mounting hole is formed in one side face of the frequency converter main machine box (104), and a micro rotating shaft (105) is in clearance fit in the mounting hole; one end of the micro rotating shaft (105) is fixedly connected with a micro fan (106);
a double-frequency-conversion control panel (107) is fixedly arranged in the frequency converter host (103);
a plurality of cylindrical flow guide holes (108) are axially formed in the circumferential side surface of the motor body (1); the interior of the cylindrical diversion hole (108) is communicated with the interior of the protective shell (101).
2. The enhanced heat dissipation type dual-frequency conversion integrated variable frequency motor as claimed in claim 1, wherein a micro motor (109) is fixedly mounted on an inner side surface of the frequency converter main machine box (104); the output end of the micro motor (109) is fixedly connected with one end of the micro rotating shaft (105).
3. The enhanced heat dissipation type double-frequency-conversion integrated variable frequency motor as claimed in claim 1, wherein the frequency converter main unit (103) further comprises a frequency converter main unit box cover (110); and the frequency converter main machine box cover (110) is fixedly connected with the frequency converter main machine box (104) through bolts.
4. The enhanced heat dissipation type double-frequency-conversion integrated variable frequency motor is characterized in that a heat insulation sheet (111) is fixedly mounted on one side face of the motor body (1).
5. The enhanced heat dissipation type double-frequency-conversion integrated variable frequency motor is characterized in that a semiconductor refrigerating sheet (112) is fixedly connected to one side face of a frequency converter main unit box cover (110); one side of the semiconductor refrigeration sheet (112) is fixedly connected with one side of the heat insulation sheet (111).
6. The enhanced heat dissipation type dual-frequency conversion integrated variable frequency motor according to claim 1, wherein a mounting hole is formed in the peripheral side of the frequency converter main machine box (104), and a temperature sensor (113) is fixedly mounted inside the mounting hole; one end of the temperature sensor (113) is positioned inside the frequency converter main machine (103);
the other end of the temperature sensor (113) is positioned in the inner cavity of the motor body (1).
7. The enhanced heat dissipation type double-frequency-conversion integrated variable frequency motor as claimed in claim 1, wherein a plurality of air inlets (114) are formed in one side surface of the protective casing (101);
a dust screen is fixedly arranged on one inner side surface of the protective shell (101); the dust screen is opposite to the air inlet hole (114).
8. The enhanced heat dissipation type double-frequency-conversion integrated variable frequency motor is characterized in that a first driving mechanism is fixedly arranged between the double-frequency-conversion control panel (107) and the motor body (1);
and a second driving mechanism is fixedly arranged between the double-frequency-conversion control panel (107) and the micro motor (109).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010905348.0A CN112104140A (en) | 2020-09-01 | 2020-09-01 | Enhanced heat dissipation type double-frequency-conversion integrated variable frequency motor |
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| CN202010905348.0A CN112104140A (en) | 2020-09-01 | 2020-09-01 | Enhanced heat dissipation type double-frequency-conversion integrated variable frequency motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114696544A (en) * | 2020-12-31 | 2022-07-01 | 青岛中加特电气股份有限公司 | Frequency conversion all-in-one machine for dragging petroleum turntable |
| CN119298529A (en) * | 2024-12-13 | 2025-01-10 | 北京高孚动力科技有限公司 | A magnetically suspended high-speed motor with energy-saving air-cooling structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114696544A (en) * | 2020-12-31 | 2022-07-01 | 青岛中加特电气股份有限公司 | Frequency conversion all-in-one machine for dragging petroleum turntable |
| CN119298529A (en) * | 2024-12-13 | 2025-01-10 | 北京高孚动力科技有限公司 | A magnetically suspended high-speed motor with energy-saving air-cooling structure |
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