CN209860680U - Heat dissipation mechanism of permanent magnet motor - Google Patents
Heat dissipation mechanism of permanent magnet motor Download PDFInfo
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- CN209860680U CN209860680U CN201920356829.3U CN201920356829U CN209860680U CN 209860680 U CN209860680 U CN 209860680U CN 201920356829 U CN201920356829 U CN 201920356829U CN 209860680 U CN209860680 U CN 209860680U
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- heat dissipation
- stator core
- cooling
- dissipation holes
- stator
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Abstract
The utility model discloses a heat dissipation mechanism of a permanent magnet motor, the permanent magnet motor comprises a stator frame, a stator coil, a stator core and a plurality of cooling pipelines, the stator coil is embedded in a stator core slot, the stator core is fixed on the stator frame, the stator core comprises stator cores with heat dissipation holes and stator cores without heat dissipation holes which are staggered and stacked, the heat dissipation holes are arranged outside the circumference of the stator core with the heat dissipation holes, the plurality of cooling pipelines are evenly distributed on the periphery of the stator core with the heat dissipation holes, each cooling pipeline passes through the heat dissipation holes on the stator core with the heat dissipation holes, the inlet of each cooling pipeline is connected with a cooling medium distributor, the outlet of each cooling pipeline is connected with a cooling medium recoverer, the inlet of each cooling medium distributor is connected with the outlet of a refrigerating unit through a pipeline, and the outlet of each cooling medium recoverer is connected with the inlet of the refrigerating unit through a pipeline. The utility model discloses make each cooling tube cooling effect unanimous for stator core's periphery temperature distribution.
Description
Technical Field
The utility model relates to a permanent-magnet machine field, concretely relates to combination formula heat dissipation mechanism for permanent-magnet machine.
Background
Cooling methods of large motors include air cooling, water cooling, backpack air cooling, evaporative cooling, and the like. The disadvantage of using air cooling is that the air heat exchange coefficient is low and the cooling effect is poor, and the fan is used to force the air to flow to cool the motor, so the friction loss caused by cooling air is large, and the noise of the motor is large. The use of a backpack cooler also results in a bulky machine.
Because the heat conductivity coefficient of water is big, the heat exchange capacity is strong, and the specific heat capacity is big to take away heat much, adopts water-cooled motor temperature rise little, and the motor radiating effect is good.
The existing water cooling structure adopts a water jacket base structure and also adopts a stator base back milling groove to place a cooling copper pipe structure. The water jacket base is provided with a water jacket on a motor shell, and a cooling water channel is spiral, so that the structure has the great difficulty that the water jacket is anticorrosive and scales, and the water jacket is easy to rust in a humid environment, so that the cooling water channel can be blocked due to the fact that the cooling water is easy to scale in long-term operation. And the milling groove at the back of the stator frame is provided with a cooling copper pipe, so that the structure is complex, the processing and manufacturing difficulty is high, and the weight of the frame is obviously increased.
In addition, like CN204205750U hybrid cooling motor, stator core is folded by the segmentation of the punching sheet unit of difference, the stator core excircle is concavo-convex, each punching sheet unit lays condenser tube's hybrid cooling structure in stator core yoke portion trompil, its condenser tube's size receives the restriction, the heat of taking away is limited, only is fit for the small motor, it not only leads to the motor structure complicated processing to make the degree of difficulty big to lay the condenser tube at stator core yoke portion in addition, still there is copper pipe cutting stator rotating magnetic field to lead to the loss to increase the problem of generating heat.
The invention discloses a permanent magnet motor liquid cooling structure and a permanent magnet motor, wherein a stator core comprises a stator core with heat dissipation holes and a stator core without the heat dissipation holes, the stator core with the heat dissipation holes is a stator core which is staggered and stacked, two end iron cores of the stator core are partially provided with the heat dissipation holes, the heat dissipation holes are arranged outside the circumference of the stator core with the heat dissipation holes, the outer diameter of the bottommost outer circle of the heat dissipation holes is larger than the outer diameter of the stator core without the heat dissipation holes, a cooling pipeline penetrates through the heat dissipation holes of the stator core with the heat dissipation holes, and the head and the tail of the cooling pipeline are respectively connected with an inlet and an outlet of a. However, in the patent application of the invention, all the cooling pipes are connected end to end, so that the temperature of the cooling medium at the tail end of the cooling pipe is increased, the cooling effect is poor, and the temperature distribution of the periphery of the stator core is uneven.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming above defect, provide a permanent-magnet machine's that cooling effect is good group heat dissipation mechanism.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is:
a heat dissipation mechanism of a permanent magnet motor, the permanent magnet motor comprises a stator base, a stator coil, a stator core and a plurality of cooling pipelines, the stator coil is embedded in a stator core slot, the stator core is fixed on the stator base and comprises a stator core with heat dissipation holes and a stator core without heat dissipation holes, the stator core with the heat dissipation holes and the stator core without the heat dissipation holes are stacked in a staggered way, two end cores of the stator core are the stator cores without the heat dissipation holes, the heat dissipation holes are arranged outside the circumference of the stator core with the heat dissipation holes, the plurality of cooling pipelines are uniformly distributed on the circumference of the stator core with the heat dissipation holes, each cooling pipeline passes through the corresponding heat dissipation hole on the stator core with the heat dissipation holes, the heat dissipation mechanism is characterized in that the inlet of each cooling pipeline is connected with a cooling medium distributor, and the outlet of each cooling pipeline is connected with a cooling medium, the inlet of the cooling medium distributor is connected with the outlet of a refrigerating unit through a pipeline, and the outlet of the cooling medium recoverer is connected with the inlet of the refrigerating unit through a pipeline.
In a preferred embodiment of the present invention, the cooling medium distributor and the cooling medium recovery unit are respectively fixedly installed at both ends of the stator core.
The utility model has the beneficial technical effects that: each cooling pipeline is a straight pipe, an inlet of each cooling pipeline is connected with a cooling medium distributor, and an outlet of each cooling pipeline is connected with a cooling medium recoverer, so that the cooling effect of each cooling pipeline is consistent, and the peripheral temperature of the stator core is distributed.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Referring to fig. 1, a heat dissipation mechanism of a permanent magnet motor is shown, which includes a stator base, a stator coil, a stator core 10, and a plurality of cooling copper pipes 20, wherein the stator coil is embedded in a slot of the stator core 10, and the stator core 10 is fixed on the stator base.
Stator core 10 includes a left side, right-hand member portion clamp plate 11, 12 and the stator core 13 who takes the louvre, the stator core 14 who does not take the louvre, the stator core 13 who takes the louvre stacks in proper order with the stator core 14 who does not take the louvre in turn, and two tip iron cores of stator core 10 are for not taking the stator core 14 of louvre, the left side at both ends, right-hand member portion clamp plate 11, 12 compress tightly the stator core 13 who takes the louvre and the stator core 14 who does not take the louvre, a left side, right-hand member portion clamp plate 11, 12 adopt the welding mode to connect through the brace rod 15 of a plurality.
The circumference of the stator core 13 with heat dissipation holes is provided with heat dissipation holes, and each cooling copper pipe 20 is a straight pipe passing through the heat dissipation hole corresponding to the stator core 13 with heat dissipation holes.
The utility model is characterized in that the inlet of each cooling copper pipe 20 is connected with a cooling medium distributor 30, and the cooling medium distributor 30 is of an annular structure and is fixed on the outer side surface of the left end pressing plate 11.
The outlet of each cooling copper pipe 20 is connected with a cooling medium recoverer 40, and the cooling medium recoverer 40 is of an annular structure and is fixed on the outer side surface of the right end pressing plate 12.
The inlet of the refrigerant distributor 30 is connected to the outlet of a refrigerator group 60 via a pipe 50, and the outlet of the refrigerant recoverer 40 is connected to the inlet of the refrigerator group 60 via a pipe 70.
The above is just one embodiment of the present invention, and a preferred example. The scope of the claims of the present invention is not limited to the described embodiments. All technical schemes equivalent to this embodiment all belong to the protection scope of the present invention.
Claims (2)
1. A heat dissipation mechanism of a permanent magnet motor comprises a stator base, a stator coil, a stator core, a rotor and a plurality of cooling pipelines, wherein the stator coil is embedded in a stator core slot, the stator core is fixed on the stator base and comprises a stator core with heat dissipation holes and a stator core without the heat dissipation holes, the stator core with the heat dissipation holes and the stator core without the heat dissipation holes are stacked in a staggered manner, two end iron cores of the stator core are the stator cores without the heat dissipation holes, the periphery of the stator core with the heat dissipation holes is provided with the heat dissipation holes, the plurality of cooling pipelines are uniformly distributed on the periphery of the stator core with the heat dissipation holes, each cooling pipeline penetrates through the corresponding heat dissipation hole on the stator core with the heat dissipation holes, and the heat dissipation mechanism is characterized in that the inlet of each cooling pipeline is connected with a cooling medium distributor, and the outlet of each cooling pipeline is connected with a cooling medium recover, the inlet of the cooling medium distributor is connected with the outlet of a refrigerating unit through a pipeline, and the outlet of the cooling medium recoverer is connected with the inlet of the refrigerating unit through a pipeline.
2. The heat dissipating mechanism of a permanent magnet motor according to claim 1, wherein the cooling medium distributor and the cooling medium recovery unit are fixedly installed at both ends of the stator core, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920356829.3U CN209860680U (en) | 2019-03-20 | 2019-03-20 | Heat dissipation mechanism of permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920356829.3U CN209860680U (en) | 2019-03-20 | 2019-03-20 | Heat dissipation mechanism of permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209860680U true CN209860680U (en) | 2019-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920356829.3U Active CN209860680U (en) | 2019-03-20 | 2019-03-20 | Heat dissipation mechanism of permanent magnet motor |
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| CN (1) | CN209860680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510892A (en) * | 2020-11-30 | 2021-03-16 | 江苏苏美达五金工具有限公司 | Permanent magnet brushless synchronous motor |
-
2019
- 2019-03-20 CN CN201920356829.3U patent/CN209860680U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510892A (en) * | 2020-11-30 | 2021-03-16 | 江苏苏美达五金工具有限公司 | Permanent magnet brushless synchronous motor |
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