阅读说明：本技术 一种内部油冷高速电机 (Internal oil cooling high-speed motor ) 是由 于喜伟 于 2021-07-14 设计创作，主要内容包括：本发明公开了一种内部油冷高速电机,包括机壳,机壳内设有定子和转子,机壳的前端密封安装有前端盖,机壳的后端密封安装有后端盖,前端盖的内侧设有前环形板,后端盖的内侧设有后环形板,定子内部嵌有定子线圈,定子线圈的前端绝缘密封连接有环状的前灌封体,定子线圈的后端绝缘密封连接有环状的后灌封体,前灌封体、定子、定子线圈和后灌封体组成定子组件,定子组件上设有供冷却油流通的冷却油流道,前灌封体与前端盖之间形成前油腔,机壳上设有与前油腔相连通的第一连接口,后灌封体与后端盖之间形成后油腔,机壳上设有与后油腔相连通的第二连接口。本发明中的冷却油能够直接冷却电机的内部,有效地将定子产生的热量及时带走。(The invention discloses an internal oil-cooling high-speed motor, which comprises a machine shell, wherein a stator and a rotor are arranged in the machine shell, a front end cover is hermetically arranged at the front end of the machine shell, a rear end cover is hermetically arranged at the rear end of the machine shell, a front annular plate is arranged on the inner side of the front end cover, a rear annular plate is arranged on the inner side of the rear end cover, a stator coil is embedded in the stator, the front end of the stator coil is hermetically connected with an annular front potting body in an insulating way, the rear end of the stator coil is hermetically connected with an annular rear potting body, the front potting body and, the stator coil and the rear potting body form a stator assembly, a cooling oil flow channel for cooling oil to circulate is arranged on the stator assembly, a front oil cavity is formed between the front potting body and the front end cover, a first connecting port communicated with the front oil cavity is arranged on the casing, a rear oil cavity is formed between the rear potting body and the rear end cover, and a second connecting port communicated with the rear oil cavity is arranged on the casing. The cooling oil can directly cool the interior of the motor, and effectively takes away heat generated by the stator in time.)

1. An internal oil-cooled high-speed motor is characterized by comprising a casing, wherein a stator and a rotor are arranged in the casing, the casing is sleeved outside the stator in a hot manner, a front end cover is mounted at the front end of the casing in a sealing manner, a rear end cover is mounted at the rear end of the casing in a sealing manner, a front annular plate is arranged on the inner side of the front end cover, a rear annular plate is arranged on the inner side of the rear end cover, a stator coil is embedded in the stator, the front end of the stator coil is connected with an annular front potting body in an insulating and sealing manner, the inner side of the front potting body is in sealing contact with the front annular plate, the outer side of the front potting body is in sealing contact with the casing, the rear end of the stator coil is connected with an annular rear potting body in an insulating and sealing manner, the inner side of the rear potting body is in sealing contact with the rear annular plate, and the outer side of the rear potting body is in sealing contact with the casing in a sealing manner, the stator assembly is composed of the front potting body, the stator coil and the rear potting body, a cooling oil flow channel for cooling oil to flow is arranged on the stator assembly, a front oil cavity is formed between the front potting body and the front end cover, the front oil cavity is communicated with one end of the cooling oil flow channel, a first connecting port communicated with the front oil cavity is arranged on the casing, a rear oil cavity is formed between the rear potting body and the rear end cover, the rear oil cavity is communicated with the other end of the cooling oil flow channel, a second connecting port communicated with the rear oil cavity is arranged on the casing, one of the first connecting port and the second connecting port serves as a cooling oil inlet, and the other one serves as a cooling oil outlet.

2. The internal oil-cooled high speed electric machine of claim 1, wherein the cooling oil flow passages comprise stator yoke portion flow passages and stator tooth portion flow passages.

3. The internal oil-cooled high-speed motor according to claim 1, wherein one end of the rotor is provided with a front shaft end, the other end of the rotor is provided with a rear shaft end, the front shaft end passes through the inner side of the front annular plate and is mounted on the front end cover through a bearing, and the rear shaft end passes through the inner side of the rear annular plate and is mounted on the rear end cover through a bearing.

4. The internal oil-cooled high-speed motor according to claim 1, wherein the first connection port serves as a cooling oil inlet, the second connection port serves as a cooling oil outlet, and cooling oil enters the front oil chamber through the first connection port, then flows into the rear oil chamber through the cooling oil flow passage, and finally flows out through the second connection port.

5. The internal oil-cooled high-speed motor according to claim 1, wherein the first connection port serves as a cooling oil outlet, the second connection port serves as a cooling oil inlet, and cooling oil enters the rear oil chamber through the second connection port, flows into the front oil chamber through the cooling oil flow passage, and flows out through the first connection port.

6. The internal oil-cooled high-speed electric machine according to claim 1, wherein the front and rear potting bodies are epoxy glue.

Technical Field

The invention belongs to the technical field of motors, and particularly relates to an internal oil-cooled high-speed motor.

Background

At present, a cooling mode adopted by a general high-speed motor is generally external cooling, but the high-speed motor has the biggest characteristic of high power density, so that a smaller motor volume generates more heat, and the current external cooling mode can only cool the outer surface of the motor, so that the interior of the motor generates heat seriously, the heat cannot be dissipated in time, and the low-temperature rise requirement of the high-speed motor cannot be met. Therefore, there is an urgent need for an internal oil-cooled high-speed motor capable of solving the above problems.

Disclosure of Invention

In order to solve the technical problems, the invention provides an internal oil cooling high-speed motor, wherein cooling oil directly cools the inside of the motor, and can effectively take away heat generated by a stator in time.

The technical scheme of the invention is as follows:

the utility model provides an inside oil-cooling high-speed motor, includes the casing, be equipped with stator and rotor in the casing, the casing heat jacket is in the outside of stator, the front end seal mounting of casing has the front end housing, the rear end seal mounting of casing has the rear end housing, the inboard of front end housing is equipped with preceding annular slab, the inboard of rear end housing is equipped with back annular slab, stator coil has been inlayed to the stator inside, stator coil's front end insulating seal connection has annular preceding embedment body, just preceding embedment body's inboard with preceding annular slab sealing contact, preceding embedment body's the outside with casing sealing contact, stator coil's rear end insulating seal connection has annular back embedment body, just back embedment body's inboard with back annular slab sealing contact, back embedment body's the outside with casing sealing contact, preceding embedment body stator, The stator coil and the rear encapsulating body form a stator assembly, a cooling oil flow channel for cooling oil to flow is arranged on the stator assembly, a front oil cavity is formed between the front encapsulating body and the front end cover, the front oil cavity is communicated with one end of the cooling oil flow channel, a first connecting port communicated with the front oil cavity is arranged on the shell, a rear oil cavity is formed between the rear encapsulating body and the rear end cover, the rear oil cavity is communicated with the other end of the cooling oil flow channel, a second connecting port communicated with the rear oil cavity is arranged on the shell, one of the first connecting port and the second connecting port serves as a cooling oil inlet, and the other one serves as a cooling oil outlet.

Preferably, the cooling oil flow passage includes a stator yoke portion flow passage and a stator tooth portion flow passage.

Preferably, one end of the rotor is provided with a front shaft end, the other end of the rotor is provided with a rear shaft end, the front shaft end penetrates through the inner side of the front annular plate and is mounted on the front end cover through a bearing, and the rear shaft end penetrates through the inner side of the rear annular plate and is mounted on the rear end cover through a bearing.

Preferably, the first connecting port is used as a cooling oil inlet, the second connecting port is used as a cooling oil outlet, and cooling oil enters the front oil cavity through the first connecting port, flows into the rear oil cavity through the cooling oil flow channel, and finally flows out through the second connecting port.

Preferably, the first connecting port is used as a cooling oil outlet, the second connecting port is used as a cooling oil inlet, and cooling oil enters the rear oil cavity through the second connecting port, flows into the front oil cavity through the cooling oil flow passage, and finally flows out through the first connecting port.

Preferably, the front potting body and the rear potting body are made of epoxy glue.

The invention has the beneficial effects that:

the invention provides an internal oil-cooled high-speed motor, wherein a first connecting port, a front oil cavity, a cooling oil flow channel, a rear oil cavity and a second connecting port form a circulation path of cooling oil, the cooling oil can directly cool the interior of the motor, the heat generated by a stator is effectively taken away in time, the problem of serious internal heating of the motor is solved, and the temperature rise of the high-speed motor is effectively reduced; the cooling oil flow channel comprises two groups of flow channels, namely a stator yoke part flow channel and a stator tooth part flow channel, and the cooling effect in the motor is more uniform.

Drawings

The invention is further described with reference to the following figures and examples:

FIG. 1 is a schematic structural diagram of the present invention.

Labeled as: 1. a housing; 2. a stator; 3. a rotor; 4. a front end cover; 5. a rear end cap; 6. a front annular plate; 7. a rear annular plate; 8. a stator coil; 9. a front potting body; 10. a rear potting body; 11. a front oil chamber; 12. a first connection port; 13. a rear oil chamber; 14. a second connection port; 15. a stator yoke runner; 16. a stator tooth portion flow passage; 17. a front shaft end; 18. and a rear shaft end.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in figure 1, the internal oil-cooled high-speed motor comprises a machine shell 1, wherein a stator 2 and a rotor 3 are arranged in the machine shell 1, the machine shell 1 is sleeved outside the stator 2 in a hot mode, a front end cover 4 is installed at the front end of the machine shell 1 in a sealing mode, a rear end cover 5 is installed at the rear end of the machine shell 1 in a sealing mode, a front annular plate 6 is arranged on the inner side of the front end cover 4, a rear annular plate 7 is arranged on the inner side of the rear end cover 5, a stator coil 8 is embedded in the stator 2, the front end of the stator coil 8 is connected with an annular front encapsulation body 9 in an insulating and sealing mode, the inner side of the front encapsulation body 9 is in sealing contact with the front annular plate 6, the outer side of the front encapsulation body 9 is in sealing contact with the machine shell 1, the rear end of the stator coil 8 is connected with an annular rear encapsulation body 10 in an insulating and sealing mode, the inner side of the rear encapsulation body 10 is in sealing contact with the rear annular plate 7, the outer side of the rear encapsulation body 10 is in sealing contact with the machine shell 1, the front encapsulation body 9, the stator 2 and the stator 2, Stator coil 8 and back embedment body 10 constitute stator module, the last cooling oil runner that supplies the cooling oil circulation that is equipped with of stator module, the cooling oil runner includes stator yoke portion runner 15 and stator tooth portion runner 16, form preceding oil pocket 11 between preceding embedment body 9 and the front end housing 4, preceding oil pocket 11 is linked together with the one end of cooling oil runner, be equipped with the first connector 12 that is linked together with preceding oil pocket 11 on the casing 1, form back oil pocket 13 between back embedment body 10 and the rear end housing 5, back oil pocket 13 is linked together with the other end of cooling oil runner, be equipped with the second connector 14 that is linked together with back oil pocket 13 on the casing 1.

One end of the rotor 3 is provided with a front shaft end 17, the other end of the rotor 3 is provided with a rear shaft end 18, the front shaft end 17 penetrates through the inner side of the front annular plate 6 and is mounted on the front end cover 4 through a bearing, and the rear shaft end 18 penetrates through the inner side of the rear annular plate 7 and is mounted on the rear end cover 5 through a bearing.

In this embodiment, the first connection port 12, the front oil chamber 11, the cooling oil flow channel, the rear oil chamber 13, and the second connection port 14 constitute a flow path of cooling oil, one of the first connection port 12 and the second connection port 14 serves as a cooling oil inlet, and the other one serves as a cooling oil outlet, wherein the front potting body 9 and the rear potting body 10 are made of epoxy glue, and the cooling oil flow channel includes two sets of flow channels, namely a stator yoke portion flow channel 15 and a stator tooth portion flow channel 16, so that the cooling effect inside the motor is more uniform. When the first connection port 12 is used as a cooling oil inlet, the second connection port 14 is used as a cooling oil outlet, cooling oil enters the front oil chamber 11 through the first connection port 12, then flows into the rear oil chamber 13 through the cooling oil flow passage, and finally flows out through the second connection port 14, when the first connection port 12 is used as a cooling oil outlet, the second connection port 14 is used as a cooling oil inlet, cooling oil enters the rear oil chamber 13 through the second connection port 14, then flows into the front oil chamber 11 through the cooling oil flow passage, and finally flows out through the first connection port 12.

The inside that cooling oil can direct cooling motor in this embodiment, in time take away the heat that the stator produced effectively, solved the inside serious problem that generates heat of motor, effectively reduced high speed motor's temperature rise.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.