CN218633599U

CN218633599U - Motor heat radiation structure of external heat exchanger

Info

Publication number: CN218633599U
Application number: CN202220642556.0U
Authority: CN
Inventors: 冯涛; 雷振飞
Original assignee: De Neng Electric Drive Technology Suzhou Co ltd
Current assignee: De Neng Electric Drive Technology Suzhou Co ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2023-03-14
Anticipated expiration: 2032-03-23

Abstract

The utility model provides an external heat exchanger's motor heat radiation structure, belongs to intelligence and equips drive control technical field, including motor body, heat output pipeline, heat exchanger, return line one, turbofan and return line two, heat output pipeline sets up between motor body and heat exchanger, the other end and the turbofan of return line one are connected, return line two and motor body's inner chamber intercommunication. The utility model discloses an external heat exchanger's motor heat radiation structure, the heat that the motor produced can begin to give off the outside from inside, and the heat dissipation that electric motor rotor can be fine, and the better assurance rotor temperature of such operational environment can not the high temperature, and is better to the heat dissipation of PMSM rotor magnet steel. The type of external environment has no effect on the use of the motor. Compared with a water-cooled motor and an air-cooled motor, the system has higher efficiency. And the heat generated by the motor can be used for heating or equipment heating in low-temperature areas and the like, so that energy conservation, environmental protection and low-carbon operation are really achieved.

Description

Motor heat radiation structure of external heat exchanger

Technical Field

The utility model belongs to the technical field of drive control is equipped to intelligence, specifically, relate to an external heat exchanger's motor heat radiation structure.

Background

The electric machine has a stator that includes a stator assembly lamination. Finally, the motor is accompanied by a housing surrounding the rotor and stator laminations. Electrical machines generate losses in the form of heat when converting electrical energy into mechanical energy. This heat loss must be dissipated to avoid overheating or damage to the machine.

At present, motors used in the market are basically provided with cooling structures, but the service environments of a plurality of motors are not suitable for common cooling modes, such as air cooling and liquid cooling, and are only suitable for natural cooling, but the environment is very severe or the environment temperature is very high, and the natural cooling efficiency is very low. Particularly, the temperature of the rotor magnetic steel of the permanent magnet synchronous motor is generally lower than 150 ℃, otherwise, the overall temperature rise or the local temperature rise of the motor is too high, the service life of the motor is shortened, structural parts of the motor are seriously deformed to endanger the operation safety of the motor, and the permanent magnet is permanently demagnetized to damage the motor.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing an external heat exchanger's motor heat radiation structure has solved traditional motor and when the operation, can produce a large amount of heats, if can not be timely give off the heat, cause the damage of motor very easily, reduced the practicality of motor to traditional motor radiating effect is poor, leads to the phenomenon that can appear scalding or burn out internals after long-time the use, has reduced the life of device, has increased use cost's problem.

The technical scheme is as follows: the utility model provides an external heat exchanger's motor heat radiation structure, including motor body, heat output pipeline, heat exchanger, backflow pipeline one, turbofan and backflow pipeline two, heat output pipeline's one end and this body coupling of motor to heat output pipeline communicates with motor body's inner chamber, heat output pipeline's the other end and heat exchanger's input are connected, backflow pipeline one's one end is connected with heat exchanger's output to backflow pipeline one's the other end and turbofan are connected, backflow pipeline two sets up between turbofan and motor body to backflow pipeline two and motor body's inner chamber intercommunication. The utility model discloses an external heat exchanger's motor heat radiation structure, the heat that the motor produced can begin to give off the outside from inside, and motor service environment does not have the requirement. The heat generated by the motor can be used for heating other devices. The motor rotor can well dissipate heat, the temperature of the rotor can be better guaranteed not to be high-temperature in the working environment, and the heat dissipation of the rotor magnetic steel of the permanent magnet synchronous motor is better. The type of external environment has no effect on the use of the motor. Compared with a water-cooled motor and an air-cooled motor, the system has higher efficiency. And the heat generated by the motor can be used for heating or equipment heating in low-temperature areas and the like, so that energy conservation, environmental protection and low-carbon operation are really achieved.

Further, foretell external heat exchanger's motor heat radiation structure, motor body is last to be equipped with air exit and air intake, heat output pipeline's one end and air exit are connected, the one end and the air intake connection of backflow pipeline two, air exit, air intake and motor body's inner chamber intercommunication. The air outlet and the air inlet can be connected with the heat output pipeline and the second return pipeline, and pipeline connection is convenient to carry out.

Further, foretell external heat exchanger's motor heat radiation structure, motor body includes motor stator, electric motor rotor, stator and rotor breath, motor front end housing, motor shaft, motor rear end housing and motor housing, motor front end housing and motor rear end housing cover respectively establish the both ends at motor housing axis direction, the motor shaft runs through motor housing, the one end setting of motor shaft is on motor rear end housing to the other end of motor shaft extends motor front end housing, motor stator and electric motor rotor all set up at motor front end housing, motor rear end housing and motor housing within range that encloses, and motor rotor and motor shaft connect, stator and rotor breath sets up between motor stator and motor rotor.

Further, in the above heat dissipation structure for the external heat exchanger, the motor front end cover is provided with the motor front bearing, and the motor shaft is connected with the motor front bearing.

Further, in the above heat dissipation structure for the external heat exchanger, the motor rear end cover is provided with the motor rear bearing, and one end of the motor shaft is arranged on the motor rear bearing. The motor front bearing and the motor rear bearing which are arranged can support the motor shaft to rotate stably and smoothly.

Furthermore, in the above heat dissipation structure for the external heat exchanger, the motor housing is connected with a lifting lug and a motor junction box. The arranged lifting lugs are convenient for lifting the motor; the wiring terminal is arranged in the wiring box, so that wiring of the motor is facilitated.

Further, in the heat dissipation structure of the motor of the external heat exchanger, the motor shaft is a step shaft, a first step and a second step are arranged at one end of the motor shaft close to the front end cover of the motor, the first step is located on the outer circumference of the motor shaft extending out of the front end cover of the motor, and the second step is in contact with the front bearing of the motor.

Further, in the motor heat dissipation structure of the external heat exchanger, one end of the motor shaft close to the rear end cover of the motor is provided with a third step and a fourth step, the fourth step is in contact with the rear bearing of the motor, and the third step is located on one side of the fourth step close to the front end cover of the motor. The step is set up in order to cooperate the use two of motor to set up.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has: external heat exchanger's motor heat radiation structure, structural design is reasonable, make this internal heat of motor pass through heat output pipeline through turbofan, backflow pipeline one and backflow pipeline two are at the motor housing internal loop flow, thereby absorb the temperature on the motor body, reach the effect of reducing the temperature, and the gaseous accessible heat exchanger that is taken out is cooled down, send cold air into in the motor housing, improve the motor cooling effect greatly, make the motor can use under the environment of certain high temperature, the whole journey of the inside air of motor is not in contact with outside air in the course of the work in addition, motor work is irrelevant in any abominable environment like this, this device only comes out heat exchange, and has not yet had direct contact with outside air.

Drawings

Fig. 1 is a schematic structural view of a motor heat dissipation structure of an external heat exchanger of the present invention.

In the figure: the air conditioner comprises a motor body 1, a motor stator 11, a motor rotor 12, a stator and rotor air bearing 13, a motor front end cover 14, a motor front bearing 141, a motor shaft 15, a first step 151, a second step 152, a third step 153, a fourth step 154, a motor rear end cover 16, a motor rear bearing 161, a motor shell 17, a heat output pipeline 2, a heat exchanger 3, a first return pipeline 4, a turbofan 5, a second return pipeline 6, an air outlet 101 and an air inlet 102.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

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 or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed 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," and "fixed" are to be construed broadly and may, 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. 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.

Examples

The motor heat dissipation structure of the external heat exchanger shown in fig. 1 includes a motor body 1, a heat output pipe 2, a heat exchanger 3, a first return pipe 4, a turbo fan 5, and a second return pipe 6, wherein one end of the heat output pipe 2 is connected to the motor body 1, the heat output pipe 2 is communicated with an inner cavity of the motor body 1, the other end of the heat output pipe 2 is connected to an input end of the heat exchanger 3, one end of the first return pipe 4 is connected to an output end of the heat exchanger 3, and the other end of the first return pipe 4 is connected to the turbo fan 5, the second return pipe 6 is disposed between the turbo fan 5 and the motor body 1, and the second return pipe 6 is communicated with the inner cavity of the motor body 1. The direction of arrow a in fig. 1 is the direction of the airflow.

The motor comprises a motor body 1, a heat output pipeline 2, an air inlet 102, an air outlet 101, an air inlet 102, a return pipeline II 6, an air outlet 101, an air inlet 102 and an inner cavity of the motor body 1.

In the above structure, the motor body 1 includes a motor stator 11, a motor rotor 12, a stator-rotor breath 13, a motor front end cover 14, a motor shaft 15, a motor rear end cover 16 and a motor housing 17, the motor front end cover 14 and the motor rear end cover 16 are respectively covered at two ends of the motor housing 17 in the axial direction, the motor shaft 15 penetrates through the motor housing 17, one end of the motor shaft 15 is arranged on the motor rear end cover 16, the other end of the motor shaft 15 extends out of the motor front end cover 14, the motor stator 11 and the motor rotor 12 are both arranged in the range enclosed by the motor front end cover 14, the motor rear end cover 16 and the motor housing 17, the motor rotor 12 is connected with the motor shaft 15, and the stator-rotor breath 13 is arranged between the motor stator 11 and the motor rotor 12. The motor front end cover 14 is provided with a motor front bearing 141, and the motor shaft 15 is connected with the motor front bearing 141. The motor rear end cover 16 is provided with a motor rear bearing 161, and one end of the motor shaft 15 is arranged on the motor rear bearing 161.

In addition, the motor shaft 15 is a stepped shaft, one end of the motor shaft 15 close to the motor front cover 14 is provided with a first step 151 and a second step 152, the first step 151 is located on the outer circumference of the motor shaft 15 extending out of the motor front cover 14, and the second step 152 is in contact with the motor front bearing 141. One end of the motor shaft 15 close to the motor rear end cover 16 is provided with a step three 153 and a step four 154, the step four 154 is in contact with the motor rear bearing 161, and the step three 153 is located on one side of the step four 154 close to the motor front end cover 14.

In addition, a lifting lug 171 and a motor terminal box 172 are connected to the motor housing 17.

Motor stator 11, motor rotor 12, stator and rotor smell 13, motor front end housing 14, motor shaft 15, motor rear end housing 16 and motor housing 17 constitute motor body 1, the heat production part mainly has motor stator 11 and motor rotor 12 when motor body 1 moves, the heat that the motor produced mainly concentrates on motor stator and rotor, motor stator 11 heat distributes to the air through motor housing 17, but if motor operational environment temperature is very high, probably heat can be followed the outside and transferred to motor housing 17, the temperature of motor can be higher like this, perhaps damage the motor even.

The utility model discloses external heat exchanger's motor heat radiation structure's theory of operation: the utility model discloses a wind channel is constituteed to heat output pipeline 2, heat exchanger 3, backflow pipeline 4, turbofan 5, backflow pipeline two 6 and stator-rotor smell 13, through turbofan 5 through the hot-air of motor inside through heat output pipeline 2 circulation flows to heat exchanger 3, heat exchanger 3 gives off the heat needs place, for example to the replenishment of heating, equipment heating etc.. The high-temperature air at the position of the stator and rotor air bearing 13 flows into an air pipe near the front end cover 14 of the motor to flow out, and the low-temperature air after heat dissipation flows into the motor from the air outlet pipe of the rear end cover 16 of the motor, so that the hot air in the motor is exchanged, and the temperature of the motor rotor 12 is reduced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an external heat exchanger's motor heat radiation structure which characterized in that: including motor body (1), heat output pipeline (2), heat exchanger (3), backflow pipeline (4), turbofan (5) and backflow pipeline two (6), the one end and the motor body (1) of heat output pipeline (2) are connected to the inner chamber intercommunication of heat output pipeline (2) and motor body (1), the other end and the input of heat exchanger (3) of heat output pipeline (2) are connected, the one end and the output of heat exchanger (3) of backflow pipeline (4) are connected to the other end and turbofan (5) of backflow pipeline (4) are connected, backflow pipeline two (6) set up between turbofan (5) and motor body (1) to the inner chamber intercommunication of backflow pipeline two (6) and motor body (1).

2. The motor heat dissipation structure of an external heat exchanger as defined in claim 1, wherein: be equipped with air exit (101) and air intake (102) on motor body (1), the one end and the air exit (101) of heat output pipeline (2) are connected, the one end and air intake (102) of backflow pipeline two (6) are connected, the inner chamber intercommunication of air exit (101), air intake (102) and motor body (1).

3. The motor heat dissipation structure of an external heat exchanger according to claim 1 or 2, wherein: the motor comprises a motor body (1) and is characterized in that the motor body (1) comprises a motor stator (11), a motor rotor (12), a stator-rotor breath (13), a motor front end cover (14), a motor shaft (15), a motor rear end cover (16) and a motor shell (17), the motor front end cover (14) and the motor rear end cover (16) are respectively covered at two ends of the axis direction of the motor shell (17), the motor shaft (15) penetrates through the motor shell (17), one end of the motor shaft (15) is arranged on the motor rear end cover (16), the other end of the motor shaft (15) extends out of the motor front end cover (14), the motor stator (11) and the motor rotor (12) are arranged in the range surrounded by the motor front end cover (14), the motor rear end cover (16) and the motor shell (17), the motor rotor (12) is connected with the motor shaft (15), and the stator-rotor breath (13) is arranged between the motor stator (11) and the motor rotor (12).

4. The motor heat dissipation structure of an external heat exchanger as defined in claim 3, wherein: the motor is characterized in that a motor front bearing (141) is arranged on the motor front end cover (14), and the motor shaft (15) is connected with the motor front bearing (141).

5. The motor heat dissipation structure of an external heat exchanger as defined in claim 4, wherein: and a motor rear bearing (161) is arranged on the motor rear end cover (16), and one end of the motor shaft (15) is arranged on the motor rear bearing (161).

6. The motor heat dissipation structure of an external heat exchanger as defined in claim 5, wherein: the motor shell (17) is connected with a lifting lug (171) and a motor junction box (172).

7. The motor heat dissipation structure of an external heat exchanger as defined in claim 5, wherein: the motor shaft (15) is a step shaft, one end, close to the motor front end cover (14), of the motor shaft (15) is provided with a step I (151) and a step II (152), the step I (151) is located on the outer circumference, extending out of the motor front end cover (14), of the motor shaft (15), and the step II (152) is in contact with the motor front bearing (141).

8. The motor heat dissipation structure of an external heat exchanger as defined in claim 7, wherein: one end of the motor shaft (15) close to the motor rear end cover (16) is provided with a step three (153) and a step four (154), the step four (154) is contacted with the motor rear bearing (161), and the step three (153) is positioned on one side of the step four (154) close to the motor front end cover (14).