CN113381562A - External frame type heat dissipation system of motor - Google Patents
External frame type heat dissipation system of motor Download PDFInfo
- Publication number
- CN113381562A CN113381562A CN202110703566.0A CN202110703566A CN113381562A CN 113381562 A CN113381562 A CN 113381562A CN 202110703566 A CN202110703566 A CN 202110703566A CN 113381562 A CN113381562 A CN 113381562A
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- China
- Prior art keywords
- heat dissipation
- frame
- stator
- rotor
- outer apron
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- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
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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
- H02K5/207—Casings 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model provides an outside frame-type cooling system of motor, includes the frame, the frame top surface is fixed with the outer apron, frame and outer apron both ends are connected with front end housing and rear end cap respectively, frame, outer apron, front end housing and rear end cap are connected and are formed the organism, organism internal connection is formed with multipath ventilation structure, the inside center of organism is provided with the pivot, the rotor has been cup jointed to the pivot lateral wall, the stator has been cup jointed in the pivot outside, the stator bottom side is fixed in the frame inboard, the outer apron is close to rear end cap one side top surface through connection and has the air-cooler, the frame is kept away from air-cooler one side lateral wall and has been seted. The cold air is guided into the machine body by the air cooler, and is ventilated through the multi-path ventilation structure, so that the cold air fully penetrates between the stator and the rotor, heat generated inside is taken away, and finally hot air is guided out through the heat dissipation port, so that the cold air has a full cooling effect on the stator and the rotor, and the temperature rise of the motor is rapidly reduced.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to an external frame type heat dissipation system of a motor.
Background
For a motor serving as a mechanical driving device, the temperature rise of the motor is always an important assessment item. The use place, the load condition and the performance requirement of the motor greatly influence the temperature rise. Meanwhile, customers put forward higher requirements on the power of the motor, the high-power-density motor becomes the choice of the demands of the users, and in some situations, the heat cannot be effectively dissipated only by the heat dissipation capacity of the motor, so that the temperature rise of the motor is too high, the motor is damaged in an insulation manner, the service life is shortened, and even the motor is burnt out.
Generally, the motor body is relatively closed due to the internal structure, so that the generated heat is difficult to be dissipated from the motor body, and the heat is difficult to circulate in the motor body even if a fan is additionally arranged, so that the heat is difficult to be taken away, and the heat dissipation effect of the motor is not ideal.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an external frame type heat dissipation system of a motor, which has the following specific technical scheme:
the utility model provides an outside frame-type cooling system of motor, includes the frame, the frame top surface is fixed with the outer apron, frame and outer apron both ends are connected with front end housing and rear end cap respectively, frame, outer apron, front end housing and rear end cap are connected and are formed the organism, organism internal connection is formed with multipath ventilation structure, the inside center of organism is provided with the pivot, the rotor has been cup jointed to the pivot lateral wall, the stator has been cup jointed in the pivot outside, the stator bottom side is fixed in the frame inboard, the outer apron is close to rear end cap one side top surface through connection and has the air-cooler, the frame is kept away from air-cooler one side lateral wall and has been seted up the thermovent.
Further, the stator is including the heat dissipation muscle, the heat dissipation muscle is fixed in stator top side and bottom side respectively along the axial, the laminating is connected in front end housing and rear end cap lateral wall respectively in heat dissipation muscle both ends, the heat dissipation muscle laminating in outer cover plate inside wall on stator top side, the heat dissipation muscle of stator bottom side is fixed in the frame inside wall.
Further, the front end cover and the rear end cover are identical in structure, the side wall of the front end cover is provided with a ventilation groove, one side of the ventilation groove is attached with two heat dissipation ribs, and the outer cover plate, the heat dissipation ribs and the ventilation groove are connected to form a ventilation channel structure.
Further, the heat dissipation muscle is fixed with a plurality ofly along stator circumference distribution, the slot that ventilates is provided with a plurality ofly, one the slot cooperation laminating of ventilating has two heat dissipation muscle, outer apron and frame inboard are the semicircle face structure, outer apron, frame, heat dissipation muscle and the slot connection that ventilates form a plurality of independent closed ventiduct structures.
Further, a cylindrical channel structure is formed between the stator and the rotor in a clearance fit mode, and a vent hole is formed in the rotor.
Furthermore, the ventilation hole is of a stepped structure, and the aperture of the ventilation hole close to one side of the front end cover is smaller than that of the ventilation hole close to one side of the rear end cover.
Further, outer apron includes the deep bead, deep bead vertical fixation is in outer apron bottom surface, the deep bead sets up on the perpendicular midline of air-cooler bottom export, the deep bead is formed with two radiating areas, one with the inside partition of organism the radiating area communicates in the ventiduct of stator outer wall, another the radiating area communicates in the tube-shape passageway of rotor outer wall and inside ventilation hole.
The invention has the beneficial effects that: inside the air-cooler was leading-in with cold wind to the organism, ventilated through the multipath ventilation structure, made cold wind fully pass between stator and the rotor to take away the heat that inside produced, derive hot-blast through the thermovent at last, made cold wind play abundant refrigerated effect to stator and rotor, thereby made the motor temperature rise descend rapidly.
Drawings
Fig. 1 is a schematic diagram illustrating an overall structure of an external frame type heat dissipation system of a motor according to the present invention;
FIG. 2 shows a cross-sectional view of the stator inner and outer connection structure of the present invention;
FIG. 3 shows a schematic view of the front end cap construction of the present invention;
shown in the figure: 1. a front end cover; 11. a ventilation trench; 2. an outer cover plate; 21. a wind deflector; 3. a stator; 31. heat dissipation ribs; 4. a rotor; 41. a vent hole; 5. an air cooler; 6. a rear end cap; 7. a rotating shaft; 8. a machine base; 81. and a heat dissipation port.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
An external frame type heat dissipation system of a motor comprises a base 8, wherein an outer cover plate 2 is fixed on the top surface of the base 8, a front end cover 1 and a rear end cover 6 are respectively connected to two ends of the base 8 and the outer cover plate 2, the base 8, the outer cover plate 2, the front end cover 1 and the rear end cover 6 are connected to form a machine body, a multi-path ventilation structure is formed in the machine body through connection, a rotating shaft 7 is arranged in the center of the interior of the machine body, a rotor 4 is sleeved on the side wall of the rotating shaft 7, a stator 3 is sleeved on the outer side of the rotating shaft 7, the bottom side of the stator 3 is fixed on the inner side of the base 8, an air cooler 5 is connected to the top surface of one side, close to the rear end cover 6, of the outer cover plate 2 in a through mode, and a heat dissipation port 81 is formed in the side wall, far away from the air cooler 5, of the base 8; inside the air-cooler was leading-in with cold wind to the organism, ventilated through the multipath ventilation structure, made cold wind fully pass between stator and the rotor to take away the heat that inside produced, derive hot-blast through the thermovent at last, made cold wind play abundant refrigerated effect to stator and rotor, thereby made the motor temperature rise descend rapidly.
As shown in fig. 1 and 2, the stator 3 includes a heat dissipation rib 31, the heat dissipation rib 31 is fixed to the top side and the bottom side of the stator 3 along the axial direction, two ends of the heat dissipation rib 31 are respectively attached to the side walls of the front end cover 1 and the rear end cover 6, the heat dissipation rib 31 on the top side of the stator 3 is attached to the inner side wall of the outer cover plate 2, and the heat dissipation rib 31 on the bottom side of the stator 3 is fixed to the inner side wall of the base 8; the stator utilizes the heat dissipation muscle not only to strengthen stator self structural strength, has still improved the fixed intensity of stator and frame, makes motor inner structure more stable.
As shown in fig. 1 and fig. 3, the front end cover 1 and the rear end cover 6 have the same structure, a ventilation groove 11 is formed in the side wall of the front end cover 1, two heat dissipation ribs 31 are attached to one side of the ventilation groove 11, and the outer cover plate 2, the heat dissipation ribs 31 and the ventilation groove 11 are connected to form a ventilation channel structure; the ventilation channel formed by the outer side wall of the stator through which the cold air flows can guide and circulate the entering cold air, so that the circulation speed of the cold air is ensured, and the heat on the stator and the heat dissipation ribs can be rapidly taken away.
As shown in fig. 2 and 3, a plurality of heat dissipation ribs 31 are distributed and fixed along the circumference of the stator 3, a plurality of ventilation grooves 11 are provided, one ventilation groove 11 is fitted with two heat dissipation ribs 31, the inner sides of the outer cover plate 2 and the base 8 are both in a semi-arc surface structure, and the outer cover plate 2, the base 8, the heat dissipation ribs 31 and the ventilation grooves 11 are connected to form a plurality of independent closed ventilation channel structures; a plurality of independent closed ventiducts that form can dispel the heat to stator circumference lateral wall simultaneously, have increaseed heat radiating area, have further improved the cooling rate of cold wind to organism inside.
As shown in fig. 2, a cylindrical channel structure is formed between the stator 3 and the rotor 4 in a clearance fit manner, and a vent hole 41 is formed inside the rotor 4; and cold air passes through the cylindrical channel outside the rotor and the air vent inside the rotor, so that the heat dissipation effect of the rotor is more comprehensive, and the heat dissipation efficiency inside the machine body is accelerated.
The vent hole 41 is of a stepped structure, and the aperture of the vent hole 41 close to the front end cover 1 is smaller than that of the vent hole close to the rear end cover 6; inside the big aperture in ventilation hole enabled the abundant entering rotor of cold wind, the small aperture can reduce the air-out area to accelerate air-out speed, improved the radiating effect of cold wind to the rotor.
As shown in fig. 1, the outer cover plate 2 includes a wind deflector 21, the wind deflector 21 is vertically fixed on the bottom surface of the outer cover plate 2, the wind deflector 21 is arranged on the vertical central line of the outlet at the bottom of the air cooler 5, the wind deflector 21 and the inside of the machine body are separated to form two heat dissipation areas, one of the heat dissipation areas is communicated with the ventilation channel on the outer wall of the stator 3, and the other heat dissipation area is communicated with the cylindrical channel on the outer wall of the rotor 4 and the ventilation hole 41 inside; utilize the deep bead to be divided into two the tunnel with the inside cold wind of organism whole, the heat that produces on the stator is taken away through the ventiduct of stator outer wall on one way, and the tube-shape passageway between another way passes through stator and the rotor and the inside ventilation hole of rotor to take away the heat on stator and the rotor through the multipath, improved the radiating effect of motor.
In the practice of the present invention, the catalyst is,
firstly, when a stator 3 and a rotor 4 are assembled according to the figure 2, the stator 3 with a plurality of heat dissipation ribs 31 axially fixed on the side wall is placed on the semi-arc surface on the inner side of a machine base 8, the machine base 8 and the heat dissipation ribs 31 are welded and fixed, then the rotor 4 with a rotating shaft 7 is inserted into the inner side of the stator 3, the rotating shaft 7 is erected on the machine base 8, a cylindrical channel is formed between the rotor 4 and the stator 3, then an outer cover plate 2 is connected to the top of the machine base 8, and at the moment, the heat dissipation ribs 31 on the top side of the stator 3 are attached to the semi-arc surface on the inner side of the outer cover plate 2;
then fixing the front end cover 1 and the rear end cover 6 with the same structure at two ends of the engine base 8 and the outer cover plate 2 according to the figures 1 and 3, and attaching the ventilation grooves 11 on the front end cover 1 and the rear end cover 6 with the heat dissipation ribs 31, thereby forming a plurality of independent closed ventilation channels at the outer side of the stator 3;
at last, the air cooler 5 is started to penetrate through the outer cover plate 2 to guide cold air into the body on one side of the rear end cover 6, and the cold air is divided into two paths through the wind shield 21 when entering the body: one path of the heat is circulated through a plurality of ventilation channels in the axial direction of the outer wall of the stator 3, and under the guiding circulation effect of the ventilation channels, cold air takes away heat generated by the stator 3 from the outer wall and the heat dissipation ribs 31 until the heat is led out from the heat dissipation port 81 which is circulated to the base 8; another way then enters into the tube-shape passageway between rotor 4 and the stator 3 simultaneously and inside the notch cuttype ventilation hole 41 of seting up of rotor 4, the cold wind that gets into the tube-shape passageway inside will take away the heat that produces between stator 3 and the rotor 4, the cold wind that gets into in the ventilation hole 41 is the big internal diameter of going into ventilation hole 41 earlier, make cold wind more fill the inside to rotor 4, can take away more heat, the export of the little internal diameter of rethread ventilation hole 41, make the circulation of heat dissipation back wind acceleration rate, the wind that tube-shape passageway and ventilation hole 41 were derived at last also leads out outside the motor from thermovent 81, the radiating effect of motor has been improved, thereby the power of motor has been improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides an outside frame-type cooling system of motor which characterized in that: including frame (8), frame (8) top surface is fixed with outer apron (2), frame (8) and outer apron (2) both ends are connected with front end housing (1) and rear end cap (6) respectively, frame (8), outer apron (2), front end housing (1) and rear end cap (6) are connected and are formed the organism, organism internal connection is formed with multi-path ventilation structure, the inside center of organism is provided with pivot (7), rotor (4) have been cup jointed to pivot (7) lateral wall, stator (3) have been cup jointed in the pivot (7) outside, stator (3) bottom side is fixed in frame (8) inboard, outer apron (2) are close to rear end cap (6) one side top surface through connection and have air-cooler (5), air-cooler (5) one side lateral wall has been kept away from in frame (8) and heat dissipation mouth (81) have been seted up.
2. An electric machine exterior frame style heat dissipation system as defined in claim 1, wherein: stator (3) are including heat dissipation muscle (31), heat dissipation muscle (31) are fixed in stator (3) top side and bottom side respectively along the axial, heat dissipation muscle (31) both ends are laminated respectively and are connected in front end housing (1) and rear end cap (6) lateral wall, heat dissipation muscle (31) laminating in outer apron (2) inside wall on stator (3) top side, heat dissipation muscle (31) of stator (3) bottom side are fixed in frame (8) inside wall.
3. An external frame heat dissipation system for an electrical machine as defined in claim 2, wherein: front end housing (1) and rear end housing (6) structure are the same, front end housing (1) lateral wall is provided with ventilation slot (11), ventilation slot (11) one side laminating is connected with two heat dissipation muscle (31), outer apron (2), heat dissipation muscle (31) and ventilation slot (11) are connected and are formed the ventiduct structure.
4. An external frame heat dissipation system for an electrical machine as defined in claim 3, wherein: radiating rib (31) distribute along stator (3) circumference and be fixed with a plurality ofly, ventilation slot (11) are provided with a plurality ofly, one ventilation slot (11) cooperation laminating has two heat dissipation ribs (31), outer apron (2) and frame (8) inboard are the semicircle arc surface structure, outer apron (2), frame (8), heat dissipation rib (31) and ventilation slot (11) are connected and are formed a plurality of independent closed ventiduct structures.
5. An electric machine external frame heat dissipation system as defined in claim 4, wherein: clearance fit is formed with the tube-shape access structure between stator (3) and rotor (4), ventilation hole (41) have been seted up to rotor (4) inside.
6. An electric machine exterior frame style heat dissipation system as defined in claim 5, wherein: the ventilation hole (41) is of a stepped structure, and the aperture of the ventilation hole (41) close to one side of the front end cover (1) is smaller than the aperture of the ventilation hole close to one side of the rear end cover (6).
7. An external frame heat dissipation system for an electrical machine as defined in claim 6, wherein: outer apron (2) are including deep bead (21), deep bead (21) vertical fixation is in outer apron (2) bottom surface, deep bead (21) set up on air-cooler (5) bottom export vertical center line, deep bead (21) are formed with two radiating areas with the inside partition of organism, one the radiating area communicates in the ventiduct of stator (3) outer wall, another the radiating area communicates in the tube-shape passageway of rotor (4) outer wall and inside ventilation hole (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110703566.0A CN113381562A (en) | 2021-06-24 | 2021-06-24 | External frame type heat dissipation system of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110703566.0A CN113381562A (en) | 2021-06-24 | 2021-06-24 | External frame type heat dissipation system of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113381562A true CN113381562A (en) | 2021-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110703566.0A Pending CN113381562A (en) | 2021-06-24 | 2021-06-24 | External frame type heat dissipation system of motor |
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| CN (1) | CN113381562A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116979742A (en) * | 2023-07-31 | 2023-10-31 | 无锡欧瑞京机电有限公司 | Ventilating and heat-dissipating structure of motor and heat-dissipating adjusting method thereof |
-
2021
- 2021-06-24 CN CN202110703566.0A patent/CN113381562A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116979742A (en) * | 2023-07-31 | 2023-10-31 | 无锡欧瑞京机电有限公司 | Ventilating and heat-dissipating structure of motor and heat-dissipating adjusting method thereof |
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