CN113054801A - Multi-channel water-cooling heat dissipation system of direct-current brushless motor - Google Patents
Multi-channel water-cooling heat dissipation system of direct-current brushless motor Download PDFInfo
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- CN113054801A CN113054801A CN202110370272.0A CN202110370272A CN113054801A CN 113054801 A CN113054801 A CN 113054801A CN 202110370272 A CN202110370272 A CN 202110370272A CN 113054801 A CN113054801 A CN 113054801A
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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
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Abstract
A multi-channel water-cooling heat dissipation system of a brushless direct current motor comprises a motor main body, wherein the motor main body comprises a shell and a stator assembly arranged in the shell, a circular liquid path ring is arranged between the shell and the stator assembly, and a water inlet and a water outlet of the circular liquid path ring are both communicated with an external water tank; a plurality of water channels are annularly arranged on the outer surface of the circular liquid path ring, and each water channel is provided with an independent water inlet and an independent water outlet. The multi-channel heat dissipation device is provided with the multi-channel heat dissipation, so that the heat dissipation efficiency is improved, and the temperature of the motor is effectively reduced.
Description
Technical Field
The invention belongs to the technical field of machine manufacturing, and particularly relates to a multi-channel water-cooling heat dissipation system of a direct-current brushless motor.
Background
A permanent magnet brushless motor is a permanent magnet motor that is phase-commutated or current-controlled by an electronic circuit. The permanent magnet brushless motor has two types of sine wave driving and square wave driving. The sine wave driven permanent magnet motor is called a permanent magnet alternating current servo motor, and the square wave driven permanent magnet motor is called a direct current brushless motor. The dc brushless motor is widely used in various electronic devices or appliances, such as recorders, players, jukeboxes, electric massagers, computer hard disks, optical drives, and various toys, due to its excellent performance, and also widely used in various industries, such as automobiles, motorcycles, ships, aviation, and machinery.
For some brushless direct current motors with smaller power, the brushless direct current motors often do not generate too much heat during operation, the damage to the motors is small, and heat dissipation means often do not exist, or for the brushless direct current motors with larger power, the means of processing heat dissipation fins outside the machine shell can be adopted, and heat dissipation of the machine body is realized by increasing the heat dissipation area. For a high-power direct current brushless motor, means such as air cooling, liquid cooling and the like can be adopted, so that the temperature of the motor main body is further reduced, the service life of the motor is prolonged, and the performance of the motor is ensured. For the traditional liquid cooling means, a heat dissipation water channel is added into the motor shell, cooling water is introduced, and the cooling water is used for removing heat on the motor stator, so that the temperature of the whole motor is reduced. However, due to the limitation of the cooling water inlet and the long travel path of the cooling water channel required to cover the entire motor, the heat dissipation of the motor near the outlet is poor, and the heat dissipation of each part of the motor is not uniform.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the multi-channel water-cooling heat dissipation system of the direct current brushless motor, which can effectively reduce the overall temperature of the motor, has strong heat dissipation capability, high efficiency, convenient maintenance and convenient manufacture.
The technical scheme adopted by the invention is as follows:
the utility model provides a brushless DC motor multichannel water-cooling system, includes motor main body, motor main body includes the casing, installs the stator module in the casing, its characterized in that: a circular liquid path ring is arranged between the shell and the stator component, and a water inlet and a water outlet of the circular liquid path ring are both communicated with an external water tank; a plurality of water channels are annularly arranged on the outer surface of the circular liquid path ring, and each water channel is provided with an independent water inlet and an independent water outlet. The multi-channel heat dissipation device is provided with the multi-channel heat dissipation, so that the heat dissipation efficiency is improved, and the temperature of the motor is effectively reduced.
Furthermore, each ring of the circular liquid path rings is provided with a water channel which is separated to form two paths of semicircular water channels, the water inlets of the two paths of semicircular water channels are positioned on the same side, and the water outlets of the two paths of semicircular water channels are positioned on the same side. The invention reduces the circulation distance of the water channel and further improves the heat dissipation efficiency.
Furthermore, the top of the machine shell is provided with water inlets which are in one-to-one correspondence with the water inlets of the water channels, and the bottom of the machine shell is provided with water return ports which are in one-to-one correspondence with the water outlets of the water channels.
Furthermore, the water outlet end of the external water tank is communicated with the water inlet of the machine shell in a one-to-one correspondence manner through a flow dividing pipe, and the water inlet end of the external water tank is communicated with the water return port of the machine shell in a one-to-one correspondence manner through a flow dividing pipe.
Furthermore, a water suction pump is arranged between the water outlet end of the external water tank and the inlet end of the flow dividing pipe.
Further, the axial length of the circular liquid path ring is the same as the length of the stator assembly, so that the whole motor stator can be coated and cooled.
Furthermore, a plurality of radiating fins for assisting in radiating are arranged on the outer surface of the shell.
Further, the motor main body further comprises a front end cover and a rear end cover which are arranged on two sides of the shell, and a rotor assembly which is rotatably arranged in the stator assembly.
Furthermore, both ends of the rotor assembly are rotatably connected to the front end cover and the machine shell through bearings.
Furthermore, a winding coil leading-out box is arranged on the rear end cover.
The invention has the beneficial effects that: the heat dissipation water channel of the motor adopts a multi-channel heat dissipation mode, so that the circulation distance of the water channel is reduced, the heat dissipation efficiency of cooling liquid is improved, and the temperature of the motor can be effectively reduced.
Drawings
Fig. 1 is a schematic diagram of an explosive structure of the present invention.
Fig. 2 is a schematic structural view of a circular liquid circuit ring of the present invention.
Fig. 3 is a schematic structural diagram of the housing of the present invention.
Fig. 4 is a schematic cross-sectional view of a shunt of the present invention.
In the figure: 1. a front end cover fixing screw; 2. a front end cover; 3. a seal ring; 4. a first bearing; 5. a rotor assembly; 6. a stator assembly; 7. a circular fluid circuit ring; 71. a water channel; 8. a housing; 81. a water inlet; 82. a water return port; 83. a heat dissipating fin; 9. a second bearing; 10. a winding coil leading-out box; 11. the rear end cover is fixed with a screw.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to limit the invention to these embodiments. It will be appreciated by those skilled in the art that the present invention encompasses all alternatives, modifications and equivalents as may be included within the scope of the claims.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1-4, the present embodiment provides a multi-channel water-cooling heat dissipation system for a brushless dc motor, which includes a motor body, a circular liquid loop 7, and an external water tank (not shown).
The motor main body is a main experimental object of the heat dissipation system, and is a non-inductive direct current brushless motor. The motor main body comprises a machine shell 8, a stator assembly 6 arranged in the machine shell 8, a front end cover 2 and a rear end cover which are arranged on two sides of the machine shell 8, and a rotor assembly 5 which is rotatably arranged in the stator assembly 6, wherein the front end cover 2 is fixed on the end surface of the machine shell 8 through a front end cover fixing screw 1, and the rear end cover is fixed on the other end surface of the machine shell 8 through a rear end cover fixing screw 11. One end of the rotor assembly 5 is rotatably connected to the front end cover 2 through a first bearing 4, a sealing ring 3 is arranged between the first bearing 4 and the front end cover 2, and the other end of the rotor assembly 5 is rotatably connected to the machine shell 8 through a second bearing 9. And a winding coil leading-out box 10 is arranged on the rear end cover.
In this embodiment, the circular liquid path ring 7 is installed between the casing 8 and the stator assembly 6, and both a water inlet and a water outlet of the circular liquid path ring 7 are communicated with an external water tank; a plurality of water channels 71 are annularly distributed on the outer surface of the circular liquid path ring 7, and each water channel 71 is provided with an independent water inlet and an independent water outlet. The multi-channel heat dissipation device is provided with the multi-channel heat dissipation, so that the heat dissipation efficiency is improved, and the temperature of the motor is effectively reduced. Each ring of the circular liquid path ring 7 is provided with a water channel 71 which is separated to form two paths of semicircular water channels, the water inlets of the two paths of semicircular water channels are positioned on the same side, and the water outlets of the two paths of semicircular water channels are positioned on the same side. The invention reduces the circulation distance of the water channel and further improves the heat dissipation efficiency. Specifically, this embodiment circular liquid cooling ring 7 is a cylindrical tubbiness structure, mutually supports between circular liquid circuit ring 7 and the casing 8, installs on the motor, and circular liquid circuit ring 7's length is the same with motor stator length, and it has twelve water courses to open both sides around circular liquid circuit ring 7, can wrap whole motor stator, and every water course from the top down vertical semicircular in shape distributes, can effectively reduce the circulation distance of water course, improves cooling efficiency.
In this embodiment, the top of the housing 8 is provided with water inlets 81 corresponding to the water inlets of the water channels 71 one by one, and the bottom of the housing 8 is provided with water return ports 82 corresponding to the water outlets of the water channels 71 one by one. Specifically, the present embodiment has twelve pairs of water inlet 81 and water return 82 at the top and bottom of the housing 8, which may correspond to the circular fluid circuit ring 7.
In this embodiment, the water outlet end of the external water tank is communicated with the water inlet 81 of the housing 8 through the dividing pipe in a one-to-one correspondence manner, and the water inlet end of the external water tank is communicated with the water return port 82 of the housing 8 through the dividing pipe in a one-to-one correspondence manner. Specifically, the bypass pipe can divide the cooling liquid into twelve branches, and the twelve branches are sent into the circular liquid path ring 7 through the water inlet 81 of the casing 8. And a water suction pump is arranged between the water outlet end of the external water tank and the inlet end of the flow dividing pipe.
This embodiment has radiating fin 83 in the outside processing of casing 8, can cooperate the heat dissipation of inside liquid cooling, increases the area of contact of motor and external world, improves the heat dissipation intensity.
The circular liquid circuit ring 7 is a main flow channel of cooling liquid and a main carrier. The housing 8 is a carrier for the connection between the circular liquid circuit ring 7 and the external water channel. The water pumped out of the water pump is divided by the dividing pipe and then sent into the circular liquid path ring 7. The coolant passes through the external water tank, is extracted out by the suction pump, shunts through the shunt tubes, sends into water inlet 81 on the casing 8, reentries circular liquid way ring 7, finally flows back to the external water tank from return water mouth 82 on the casing 8.
When the water-cooling heat dissipation system of the direct-current brushless motor works, cooling liquid is stored in an external water tank, a water suction pump is started to pump the cooling liquid out and send the cooling liquid into a flow dividing pipe, the cooling liquid passes through the flow dividing pipe and a flow dividing section to divide the cooling liquid into twelve branches, and the twelve branches are sent into the circular liquid loop 7 through the water inlet 81 of the machine shell 8, so that the cooling liquid flows from the top of the motor to the bottom of the motor, takes away the heat of the motor, flows out of the water return port 82 at the bottom of the machine shell 8 and flows back to the. And in the external water tank, the cooling liquid is cooled and enters the next circulation again. Meanwhile, the heat dissipation fins 83 on the housing 8 also play a role in assisting the heat dissipation of the motor.
According to the invention, each heat radiation water channel is divided into a plurality of independent sub water channels to coat the whole motor stator, cooling water enters through the top of the motor and flows out from the bottom of the motor, the integral temperature of the motor can be effectively reduced, the heat radiation capability is strong, the efficiency is high, the maintenance is convenient, and the manufacture is convenient.
Claims (10)
1. The utility model provides a brushless DC motor multichannel water-cooling system, includes motor main body, motor main body includes the casing, installs the stator module in the casing, its characterized in that: a circular liquid path ring is arranged between the shell and the stator component, and a water inlet and a water outlet of the circular liquid path ring are both communicated with an external water tank; a plurality of water channels are annularly arranged on the outer surface of the circular liquid path ring, and each water channel is provided with an independent water inlet and an independent water outlet.
2. The multi-channel water-cooling heat dissipation system of the brushless DC motor as recited in claim 1, wherein: and each circular liquid path ring is provided with a water channel which is separated to form two paths of semicircular water channels, the water inlets of the two paths of semicircular water channels are positioned on the same side, and the water outlets of the two paths of semicircular water channels are positioned on the same side.
3. The multi-channel water-cooling heat dissipation system of the brushless DC motor as recited in claim 2, wherein: the top of the machine shell is provided with water inlets which are in one-to-one correspondence with the water inlets of the water channels, and the bottom of the machine shell is provided with water return ports which are in one-to-one correspondence with the water outlets of the water channels.
4. The multi-channel water-cooling heat dissipation system of the brushless DC motor of claim 3, wherein: the water outlet end of the external water tank is communicated and connected with the water inlet of the machine shell in a one-to-one correspondence mode through the flow dividing pipe, and the water inlet end of the external water tank is communicated and arranged in a one-to-one correspondence mode through the flow dividing pipe and the water return port of the machine shell.
5. The multi-channel water-cooling heat dissipation system of the brushless DC motor as recited in claim 4, wherein: and a water suction pump is arranged between the water outlet end of the external water tank and the inlet end of the flow dividing pipe.
6. The multi-channel water-cooling heat dissipation system of the brushless DC motor as recited in claim 1, wherein: the axial length of the circular liquid path ring is the same as the length of the stator assembly.
7. The multi-channel water-cooling heat dissipation system of the brushless DC motor as recited in claim 1, wherein: the outer surface of the shell is provided with a plurality of radiating fins for assisting in radiating.
8. The multi-channel water-cooling heat dissipation system of the brushless DC motor as recited in claim 1, wherein: the motor main body further comprises a front end cover and a rear end cover which are arranged on two sides of the machine shell, and a rotor assembly which is rotatably arranged in the stator assembly.
9. The multi-channel water-cooling heat dissipation system of the brushless DC motor of claim 8, wherein: both ends of the rotor component are rotatably connected to the front end cover and the machine shell through bearings.
10. The multi-channel water-cooling heat dissipation system of the brushless DC motor of claim 8, wherein: and a winding coil leading-out box is arranged on the rear end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110370272.0A CN113054801A (en) | 2021-04-07 | 2021-04-07 | Multi-channel water-cooling heat dissipation system of direct-current brushless motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110370272.0A CN113054801A (en) | 2021-04-07 | 2021-04-07 | Multi-channel water-cooling heat dissipation system of direct-current brushless motor |
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| Publication Number | Publication Date |
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| CN113054801A true CN113054801A (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110370272.0A Pending CN113054801A (en) | 2021-04-07 | 2021-04-07 | Multi-channel water-cooling heat dissipation system of direct-current brushless motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243994A (en) * | 2021-11-09 | 2022-03-25 | 安徽孟凌精密电子有限公司 | Brushless motor capable of quickly dissipating heat and mounting method thereof |
-
2021
- 2021-04-07 CN CN202110370272.0A patent/CN113054801A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243994A (en) * | 2021-11-09 | 2022-03-25 | 安徽孟凌精密电子有限公司 | Brushless motor capable of quickly dissipating heat and mounting method thereof |
| CN114243994B (en) * | 2021-11-09 | 2023-11-21 | 安徽孟凌精密电子有限公司 | Brushless motor capable of rapidly radiating heat and mounting method thereof |
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