An embedded heat pipe cooled disc type motor stator

Abstract

The utility model relates to a kind of embedded heat pipe cooling's disc type motor stator, including motor shell, motor stator and winding coil, motor stator is arranged in motor shell, and heat dissipation mechanism for improving internal heat dissipation effect is arranged between motor stator and motor shell, heat dissipation mechanism includes flat heat pipe, secondary cooling mechanism and heat-conducting silica gel, heat-conducting silica gel is arranged in the inside of secondary cooling mechanism, motor stator peripheral side is equipped with heat pipe installation groove, flat heat pipe is arranged in heat pipe installation groove, secondary cooling mechanism is arranged in motor stator peripheral side, and secondary cooling mechanism is connected with motor shell. The utility model can exchange heat to the heat generated by motor stator and winding coil when motor stator and winding coil generate a large amount of heat during motor operation by heat dissipation mechanism, and the heat generated by motor stator and winding coil is quickly discharged, to improve the cooling effect of motor stator and winding coil.

Description

Technical Field

[0001] This utility model relates to the field of disc motor technology, and in particular to a disc motor stator with embedded heat pipe cooling. Background Technology

[0002] A disc motor is an AC motor that generates torque using a rotating magnetic field. Compared to traditional motors, disc motors have higher power density and higher efficiency. The principle of a disc motor is similar to that of a traditional asynchronous motor, both using three alternating sinusoidal magnetic fields to excite coils in the stator. The difference is that in a disc motor, the rotor is a thin, parallel magnetic disc, connected to the transmission system via internal and external gears. Disc motors typically consist of an iron core, coils, and permanent magnets. When the rotating magnetic field generated by the coils in the stator acts on the rotor, the motor begins to rotate. During operation, the motor generates various losses, which in turn cause the motor to heat up. The main heat-generating components of the motor are the stator iron core and the coil windings. Due to the flat structure of the disc motor, the heat is more concentrated in the stator iron core and the windings.

[0003] The current methods for heat dissipation of the stator of a disc motor have the following drawbacks: Disc motors mostly use forced air cooling and natural air cooling for heat dissipation during operation. This method requires heat to be conducted from the internal stator to the external casing, and then the casing is exchanged by cool air. However, due to the long conduction path and high thermal resistance, the heat dissipation effect is poor, which can easily lead to insufficient heat dissipation, thus affecting the motor's lifespan and efficiency. Utility Model Content

[0004] In the existing technology, most disc motors use forced air cooling and natural air cooling for heat dissipation during operation. This method requires heat to be conducted from the internal stator to the external casing, and then the casing is exchanged by cold air. However, due to the long conduction path and high thermal resistance, the heat dissipation effect is poor, which easily leads to insufficient heat dissipation and thus affects the motor's lifespan and efficiency. This utility model provides a disc motor stator with embedded heat pipe cooling.

[0005] The technical solution adopted by this utility model is: an embedded heat pipe cooled disc motor stator, including a motor housing, a motor stator and winding coils. The motor stator is disposed inside the motor housing. A heat dissipation mechanism for improving internal heat dissipation is provided between the motor stator and the motor housing. The heat dissipation mechanism includes a flat heat pipe, a secondary cooling mechanism and thermally conductive silicone. The thermally conductive silicone is disposed inside the secondary cooling mechanism. A heat pipe mounting groove is opened on the periphery of the motor stator. The flat heat pipe is disposed in the heat pipe mounting groove. The secondary cooling mechanism is disposed on the periphery of the motor stator and is connected to the motor housing. The thermally conductive silicone is attached to the flat heat pipe.

[0006] Furthermore, the secondary cooling mechanism includes a heat-conducting ring, a spiral liquid-cooling pipe, a liquid inlet, and a liquid outlet. A cavity is formed inside the heat-conducting ring, and the spiral liquid-cooling pipe is fixedly installed inside the cavity. The liquid inlet and the liquid outlet are respectively fixedly installed at both ends of the spiral liquid-cooling pipe.

[0007] Furthermore, two protruding slots are provided on one side of the heat-conducting ring, and two slots are provided on one side of the motor housing. The two protruding slots correspond to the two slots respectively, and the liquid inlet and the liquid outlet are respectively provided on one side of the motor housing through the corresponding protruding slots and slots.

[0008] Furthermore, the heat-conducting ring is sleeved on the periphery of the motor stator, and the thermally conductive silicone is fixedly installed on the periphery of the inner wall of the heat-conducting ring, wherein the thermally conductive silicone is annular.

[0009] Furthermore, the number of winding coils is several, and the several winding coils are arranged in a circumferentially equidistant array on one side of the motor stator.

[0010] Furthermore, the number of heat pipe mounting slots and the number of flat heat pipes correspond to the number of winding coils, and the evaporation end of the flat heat pipe is located between the winding coils and the motor stator, while the condensation end of the flat heat pipe is located between the thermally conductive silicone and the motor stator.

[0011] The beneficial effects of this utility model are: This invention utilizes a heat dissipation mechanism to exchange heat with the stator and winding coils of the motor during operation, thereby rapidly dissipating the heat and improving the cooling effect on the stator and winding coils, thus ensuring stable motor operation. Attached Figure Description

[0012] Figure 1 This is a three-dimensional view of the entire utility model; Figure 2 This is an exploded view of the entire utility model; Figure 3 This is an exploded view of the motor stator and winding coils of this utility model; Figure 4 This is a cross-sectional view of the heat-conducting ring of this utility model.

[0013] The markings in the diagram are as follows: 1. Motor housing; 2. Motor stator; 3. Winding coil; 4. Heat dissipation mechanism; 5. Slot; 6. Flat heat pipe; 7. Secondary cooling mechanism; 8. Heat pipe mounting slot; 9. Thermally conductive silicone; 10. Thermally conductive ring; 11. Extension slot; 12. Spiral liquid cooling pipe; 13. Liquid inlet; 14. Liquid outlet. Detailed Implementation

[0014] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] The following is in conjunction with the appendix Figures 1-4 The present invention will be further described below.

[0017] To address the problems existing in the background art, this application proposes the following technical solution: an embedded heat pipe cooled disc motor stator.

[0018] The specific technical solution includes a motor housing 1, a motor stator 2, and winding coils 3. The motor stator 2 is housed inside the motor housing 1. A heat dissipation mechanism 4 is provided between the motor stator 2 and the motor housing 1 to improve internal heat dissipation. The heat dissipation mechanism 4 includes a flat heat pipe 6, a secondary cooling mechanism 7, and thermally conductive silicone 9. The thermally conductive silicone 9 is disposed inside the secondary cooling mechanism 7. A heat pipe mounting groove 8 is formed on the periphery of the motor stator 2, and the flat heat pipe 6 is disposed in the heat pipe mounting groove 8 to further improve the heat conduction effect. The secondary cooling mechanism 7 is disposed on the periphery of the motor stator 2 and is connected to the motor housing 1. The thermally conductive silicone 9 is in contact with the flat heat pipe 6. The number of winding coils 3 is several, and the several winding coils 3 are arranged in a circumferentially equidistant array on one side of the motor stator 2. The number of heat pipe mounting slots 8 and flat heat pipes 6 are corresponding to the number of winding coils 3. The evaporation end of the flat heat pipe 6 is located between the winding coils 3 and the motor stator 2, and the condensation end of the flat heat pipe 6 is located between the thermally conductive silicone 9 and the motor stator 2. The flat heat pipe 6 is fixedly installed in the heat pipe mounting slot 8 by thermally conductive epoxy resin, and the contact part with the winding coil 3 is also filled with thermally conductive epoxy resin. The flat heat pipe 6 is a sintered copper powder wicking heat pipe in the prior art. Its flat shape can facilitate installation and increase the contact area.

[0019] Reference Figure 4 As shown, the secondary cooling mechanism 7 includes a heat-conducting ring 10, a spiral liquid cooling tube 12, an inlet 13, and an outlet 14. A cavity is formed inside the heat-conducting ring 10, and the spiral liquid cooling tube 12 is fixedly installed inside the cavity. The inlet 13 and the outlet 14 are respectively fixedly installed at both ends of the spiral liquid cooling tube 12. Two protruding grooves 11 are formed on one side of the heat-conducting ring 10, and two slots 5 are formed on one side of the motor housing 1. The two protruding grooves 11 correspond to the two slots 5 respectively. The inlet 13 and the outlet 14 are respectively set on one side of the motor housing 1 through the corresponding protruding grooves 11 and slots 5. The heat-conducting ring 10 is sleeved on the periphery of the motor stator 2, and the thermally conductive silicone 9 is fixedly installed on the periphery of the inner wall of the heat-conducting ring 10. The thermally conductive silicone 9 is annular. The spiral liquid cooling tube 12 is in a tight fit with the inner wall of the cavity, and thermally conductive epoxy resin is filled between them, thereby improving the thermal conductivity.

[0020] To ensure that those skilled in the art can fully understand the technical solution, this application provides the following overall overview: In use, when the motor is running, causing the stator 2 and winding coil 3 to generate a large amount of heat, the heat can be quickly conducted to the evaporation end of the flat heat pipe 6 embedded in the heat pipe mounting groove 8. The working fluid inside the evaporation end of the flat heat pipe 6 absorbs heat and evaporates into steam. Under a small pressure difference, the steam flows to the condensation end of the flat heat pipe 6. At this time, by starting the external delivery pump, the external low-temperature coolant is pumped into the spiral liquid cooling pipe 12 through the inlet 13. The low-temperature coolant can exchange heat with the condensation end of the flat heat pipe 6 through the spiral liquid cooling pipe 12, the heat-conducting ring 10 and the heat-conducting silicone 9. The coolant after heat exchange is discharged through the outlet 14, so that the steam at the condensation end can be cooled and condensed back into liquid. Then, the condensed liquid flows back to the evaporation end by the capillary force of the liquid suction core on the inner wall of the flat heat pipe 6. In this way, through reciprocating circulation, a large amount of heat generated by the motor stator 2 and winding coil 3 can be quickly dissipated, improving the cooling effect of the motor stator 2 and winding coil 3.

[0021] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0022] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A disc motor stator with embedded heat pipe cooling, characterized in that, The device includes a motor housing (1), a motor stator (2), and a winding coil (3). The motor stator (2) is disposed inside the motor housing (1). A heat dissipation mechanism (4) for improving internal heat dissipation is provided between the motor stator (2) and the motor housing (1). The heat dissipation mechanism (4) includes a flat heat pipe (6), a secondary cooling mechanism (7), and thermally conductive silicone (9). The thermally conductive silicone (9) is disposed inside the secondary cooling mechanism (7). A heat pipe mounting groove (8) is provided on the periphery of the motor stator (2). The flat heat pipe (6) is disposed in the heat pipe mounting groove (8). The secondary cooling mechanism (7) is disposed on the periphery of the motor stator (2) and is connected to the motor housing (1). The thermally conductive silicone (9) is attached to the flat heat pipe (6).

2. The embedded heat pipe cooled disc motor stator according to claim 1, characterized in that, The secondary cooling mechanism (7) includes a heat-conducting ring (10), a spiral liquid cooling pipe (12), a liquid inlet (13), and a liquid outlet (14). The heat-conducting ring (10) has a cavity, and the spiral liquid cooling pipe (12) is fixedly installed in the cavity. The liquid inlet (13) and the liquid outlet (14) are respectively fixedly installed at both ends of the spiral liquid cooling pipe (12).

3. The embedded heat pipe cooled disc motor stator according to claim 2, characterized in that, Two protruding grooves (11) are provided on one side of the heat-conducting ring (10), and two slots (5) are provided on one side of the motor housing (1). The two protruding grooves (11) correspond to the two slots (5) respectively. The liquid inlet (13) and the liquid outlet (14) are respectively provided on one side of the motor housing (1) through the corresponding protruding grooves (11) and slots (5).

4. The embedded heat pipe cooled disc motor stator according to claim 3, characterized in that, The heat-conducting ring (10) is sleeved on the periphery of the motor stator (2), and the heat-conducting silicone (9) is fixedly installed on the periphery of the inner wall of the heat-conducting ring (10). The heat-conducting silicone (9) is annular.

5. The embedded heat pipe cooled disc motor stator according to claim 1, characterized in that, The number of winding coils (3) is several, and the several winding coils (3) are arranged in a circumferentially equidistant array on one side of the motor stator (2).

6. The embedded heat pipe cooled disc motor stator according to claim 5, characterized in that, The number of heat pipe mounting slots (8) and the number of flat heat pipes (6) are corresponding to the number of winding coils (3), and the evaporation end of the flat heat pipe (6) is located between the winding coils (3) and the motor stator (2), and the condensation end of the flat heat pipe (6) is located between the thermally conductive silicone (9) and the motor stator (2).

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