Liquid-cooled motor structure

Abstract

A liquid-cooled motor structure includes a main body, an end cap, and several water tanks. The main body includes a stator core. The stator core includes several grooves. These grooves are formed on the outer peripheral surface of the stator core and are circumferentially spaced. The end cap is connected to the main body and includes a cover channel, a water inlet, and a water outlet. The water inlet and the water outlet are in fluid communication with the cover channel. The water tanks are respectively engaged with the grooves. Each water tank has a tank channel that communicates with the cover channel. When cooling liquid is injected into the cover channel and the tank channel, the cooling liquid can cool the stator core, thereby achieving water cooling of the motor without changing its shape and structural rigidity.

Claims

1. A liquid-cooled motor structure, comprising: a main body including a stator core, the stator core including a plurality of grooves formed on the outer peripheral surface of the stator core and spaced circumferentially; an end cap connected to the main body and including a cap flow channel, a water inlet, and a water outlet, the water inlet and the water outlet being in fluid communication with the cap flow channel; and a water tank unit including a plurality of water tank portions respectively engaged with the grooves, each water tank portion having a tank flow channel communicating with the cap flow channel.

2. The liquid-cooled motor structure as described in claim 1, wherein, Each of the water tanks has an inlet and an outlet. When the cooling liquid enters the tank flow channel through the inlet, the cooling liquid can absorb the heat of the stator core and flow out through the outlet to reduce the temperature of the stator core.

3. The liquid-cooled motor structure as described in either claim 1 or 2, wherein, The water tank is connected to the end cap.

4. The liquid-cooled motor structure as described in claim 3 further includes a locking fastener, the end cap having a first connecting hole, the water tank unit further including a second connecting hole coaxially disposed with the first connecting hole, the locking fastener passing through the first connecting hole and the second connecting hole to connect the end cap and the water tank.

5. The liquid-cooled motor structure as described in either claim 1 or 2, wherein, These water tank sections are also connected to the stator core.

6. The liquid-cooled motor structure as described in either claim 1 or 2, wherein, The end cap portion also includes a first end cap and a second end cap, the first end cap and the second end cap being respectively connected to two opposite sides of the stator core, and the cover body flow channel being formed in the first end cap and / or the second end cap.

7. The liquid-cooled motor structure as described in claim 6, wherein, When the flow channel of the cover is formed in one of the first end cap or the second end cap, each of the water tanks has a water storage cavity, which forms the flow channel of the tank.

8. The liquid-cooled motor structure as described in claim 6, wherein, Each of the water tank sections has an inlet and an outlet, the outlet being opposite to the inlet. When the cover channel is formed in one of the first end cap or the second end cap, the inlet and outlet of each water tank section are open on the same side of the water tank section.

9. The liquid-cooled motor structure as described in claim 6, wherein, When the cover flow channel is formed on the first end cap and the second end cap, each of the water tanks has an inlet flow channel and an outlet flow channel that communicate with the cover flow channel, and the inlet flow channel and the outlet flow channel together define the tank flow channel.

10. The liquid-cooled motor structure as described in claim 6, wherein, Each of the water tank sections has two inlets and two outlets, with the outlets being opposite to the inlets. When the flow channel of the cover is formed on the first end cover and the second end cover, the inlets are arranged in opposite directions along an axis.

11. The liquid-cooled motor structure as described in claim 1, wherein, The cover flow channel has several spaced branch flow sections. The inlet and outlet are connected to the corresponding branch flow sections, and each of the bladder flow channels is connected to two adjacent branch flow sections.

12. The liquid-cooled motor structure as described in claim 1, wherein, The water tank and the stator core are connected and fixed by thermally conductive silicone grease or thermally conductive silicone.

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