CN216819519U

CN216819519U - Heat dissipation and exchange structure device for high-power-density motor

Info

Publication number: CN216819519U
Application number: CN202123425185.5U
Authority: CN
Inventors: 高洪彪; 王永恒; 李薇; 杨立超; 孟凡宇; 刘春宇; 王富春; 董佳波; 陈浩然
Original assignee: Jiamusi Electric Machine Co Ltd
Current assignee: Harbin Electric Group Advanced Motor Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-24
Anticipated expiration: 2031-12-31

Abstract

A heat dissipation and heat exchange structure device for a high-power-density motor relates to a heat dissipation and heat exchange structure device. The utility model aims to solve the problems that the conventional stator core heat dissipation structure cannot meet the heat exchange requirement, so that the temperature rise of a motor exceeds the standard and the normal work of the motor is influenced. A rotor core (4) is sleeved on a motor shaft (8), a stator core (3) with a winding is sleeved on the rotor core (4), a base (5) is installed on the stator core (3) with the winding, a shaft extension end bearing (1) and a non-shaft extension end bearing (7) are installed on the motor shaft (8) respectively, and the shaft extension end bearing (1) and the non-shaft extension end bearing (7) are connected with the base (5) through a shaft extension end cover (2) and a non-shaft extension end cover (6) respectively. The utility model is used for high-power density motors of mechanical equipment such as fracturing trucks, fracturing prys and the like.

Description

Heat dissipation and exchange structure device for high-power-density motor

Technical Field

The utility model relates to a heat dissipation and heat exchange structure, in particular to a heat dissipation and heat exchange structure device for a high-power-density motor, which is mainly applied to high-power-density motors of mechanical equipment such as fracturing trucks and fracturing skids.

Background

A heat dissipation rib heat exchange structure device for a high-power density motor is mainly applied to a driving motor for equipment such as a fracturing truck and a fracturing pry. The cooling method of original high power density motor is IC06 forced draft's heat radiation structure, and its stator core outside is mostly glossy surface, takes away the heat that stator core produced through carrying out the heat exchange with the air, and along with motor power density's further promotion, the unable effectual temperature rise that reduces the motor of this kind of stator core heat transfer structure can't satisfy the operating mode requirement.

The stator core structure that original high power density motor adopted leans on the stator core surface to carry out the heat exchange with the air and takes away the heat that the motor operation in-process produced, along with the further promotion of motor power density, this stator core heat radiation structure can't satisfy the heat transfer demand, leads to the temperature rise of motor to exceed standard, influences the normal work of motor.

Therefore, the heat exchange structure of the stator core needs to be redesigned, in order to meet the requirement of motor temperature rise, the heat generated by the motor is effectively taken away, and finally the temperature rise of the high-power-density motor reaches the use requirement of the actual working condition.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the conventional stator core heat dissipation structure cannot meet the heat exchange requirement, so that the temperature rise of a motor exceeds the standard and the normal work of the motor is influenced. Based on the background, the utility model aims to design a heat dissipation and exchange structure device for a high-power-density motor, so that the temperature rise of the motor is effectively reduced on the premise of ensuring that the motor meets the requirements of working conditions, and the requirements of actual working conditions are met.

The technical scheme of the utility model is as follows: the utility model provides a high power density is heat radiation and heat exchange structure device for motor, it includes that the axle stretches end bearing 1, the axle stretches end cover 2, there is winding stator core 3, rotor core 4, frame 5, end cover 6 is stretched to the non-axle and end bearing 7 is stretched to the non-axle, rotor core 4 suit is on motor shaft 8, there is winding stator core 3 suit on rotor core 4, frame 5 is installed on having winding stator core 3, install axle on motor shaft 8 respectively and stretch end bearing 1 and non-axle and stretch end bearing 7, the axle stretches end bearing 1 and non-axle and stretch between end bearing 7 and the frame 5 respectively through the axle stretch end cover 2 with non-axle stretch end cover 6 and connect.

Further, the stator core 3 with the winding comprises a stator coil 3-1, a plurality of stator ribs 3-2, a plurality of heat dissipation ribs 3-3 and stator punching sheets 3-4, the stator punching sheets 3-4 are sleeved on the stator coil 3-1, the plurality of stator ribs 3-2 are installed on the stator punching sheets 3-4 along the circumferential direction, the plurality of stator ribs 3-2 are installed on the stator punching sheets 3-4 at equal intervals, the plurality of heat dissipation ribs 3-3 are installed on the stator punching sheets 3-4, and at least one heat dissipation rib 3-3 is arranged between every two adjacent stator ribs 3-2.

Furthermore, two heat dissipation ribs 3-3 are arranged between two adjacent stator ribs 3-2.

Further, buckle sheet grooves 3-4-1 are processed on the stator punching sheets 3-4.

Further, a plurality of radiating ribs 3-3 are arranged in the width direction of the stator punching sheet 3-4.

Preferably, the heat dissipation ribs 3-3 are elongated heat dissipation ribs.

Further, the longitudinal section of the heat dissipation rib 3-3 is in a shape of a reversed T.

Furthermore, heat exchange holes 3-3-1 are formed in the length direction of the heat dissipation ribs 3-3.

Further, the heat exchange holes 3-3-1 penetrate through the length direction of the heat dissipation ribs 3-3.

Compared with the prior art, the utility model has the following effects:

the utility model optimizes the ventilation structure of the stator core of the high-power-density motor, and the technical scheme of the utility model is that under the condition of ensuring that the structure of the stator core is not changed as a whole, the structure of the heat dissipation rib is added on the outer surface of the stator core as shown in figure 1, the schematic diagram of the total cooling air path of the motor is shown in figure 2, and theoretical analysis and the operation of the motor under the actual working condition show that the heat dissipation structure of the stator core can effectively reduce the temperature rise of the motor and meet the requirements of the actual working condition. Therefore, the utility model can not only ensure the structural strength of the high-power motor, but also obviously reduce the temperature rise problem of the motor in the practical application process, thereby effectively ensuring the reliability of the actual operation of the high-power density motor.

Drawings

Fig. 1 is a schematic structural view of a stator core 3 with windings according to the present invention, fig. 2 is a schematic structural view of the entire present invention (arrows indicate the direction of a motor air passage), and fig. 3 is a schematic axial view of a heat dissipating rib.

Detailed Description

The technical scheme of the utility model is not limited to the specific embodiments listed below, and any reasonable combination of the specific embodiments is included.

The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to 3, and includes a shaft-extension end bearing 1, a shaft-extension end cap 2, a winding stator core 3, a rotor core 4, a base 5, a non-shaft-extension end cap 6 and a non-shaft-extension end bearing 7, wherein the rotor core 4 is sleeved on a motor shaft 8, the winding stator core 3 is sleeved on the rotor core 4, the base 5 is installed on the winding stator core 3, the shaft-extension end bearing 1 and the non-shaft-extension end bearing 7 are respectively installed on the motor shaft 8, and the shaft-extension end bearing 1 and the non-shaft-extension end bearing 7 are respectively connected with the base 5 through the shaft-extension end cap 2 and the non-shaft-extension end cap 6.

The stator core 3 with the winding comprises a stator coil 3-1, a plurality of stator ribs 3-2, a plurality of heat dissipation ribs 3-3 and a stator punching sheet 3-4, wherein the stator punching sheet 3-4 is sleeved on the stator coil 3-1, the plurality of stator ribs 3-2 are installed on the stator punching sheet 3-4 along the circumferential direction, the plurality of stator ribs 3-2 are installed on the stator punching sheet 3-4 at equal intervals, the plurality of heat dissipation ribs 3-3 are installed on the stator punching sheet 3-4, and at least one heat dissipation rib 3-3 is arranged between every two adjacent stator ribs 3-2. Two heat dissipation ribs 3-3 are arranged between two adjacent stator ribs 3-2. And a cramp groove 3-4-1 is processed on the stator punching sheet 3-4. The plurality of radiating ribs 3-3 are arranged in the width direction of the stator punching sheet 3-4. The heat dissipation ribs 3-3 are strip-shaped heat dissipation ribs. The longitudinal section of the heat dissipation rib 3-3 is shaped like a T. The heat exchange holes 3-3-1 are formed in the length direction of the heat dissipation ribs 3-3. The heat exchange holes 3-3-1 penetrate through the length direction of the heat dissipation ribs 3-3.

The principle of the utility model is as follows:

the utility model relates to a heat dissipation rib heat exchange structure device for a high-power-density motor, which is mainly applied to a driving motor of mechanical equipment such as a fracturing truck, a fracturing pry and the like, and the implementation process of the heat dissipation rib cooling and ventilating structure for the high-power-density motor is explained below, wherein in fig. 1, buckle piece grooves are processed on the outer side surface of a stator punching sheet, the heat dissipation rib is assembled through the buckle piece grooves and then spot-welded, the stator rib reinforces and fixes a stator core structure and is installed in the stator core groove, the heat dissipation rib is shown in fig. 3, and the heat exchange structure with the heat dissipation rib with a heat exchange hole is installed, so that the heat exchange area between the stator core structure and air can be effectively increased, and the purpose of temperature rise of the high-power-density motor is effectively reduced.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a high power density is heat dissipation heat transfer constructional device for motor which characterized in that: it includes that the axle stretches end bearing (1), the axle stretches end cover (2), there is winding stator core (3), rotor core (4), frame (5), non-axle stretches end cover (6) and non-axle and stretches end bearing (7), rotor core (4) suit is on motor shaft (8), there is winding stator core (3) suit on rotor core (4), frame (5) are installed on having winding stator core (3), install axle on motor shaft (8) respectively and stretch end bearing (1) and non-axle and stretch end bearing (7), the axle stretches end bearing (1) and non-axle and stretches end bearing (7) and frame (5) between be connected through axle extension end cover (2) and non-axle respectively and stretch end cover (6).

2. The heat dissipating and exchanging structure device for the high power density motor according to claim 1, wherein: the stator core (3) with the winding comprises a stator coil (3-1), a plurality of stator ribs (3-2), a plurality of heat dissipation ribs (3-3) and stator punching sheets (3-4), wherein the stator punching sheets (3-4) are sleeved on the stator coil (3-1), the plurality of stator ribs (3-2) are installed on the stator punching sheets (3-4) along the circumferential direction, the plurality of stator ribs (3-2) are installed on the stator punching sheets (3-4) at equal intervals, the plurality of heat dissipation ribs (3-3) are installed on the stator punching sheets (3-4), and at least one heat dissipation rib (3-3) is arranged between every two adjacent stator ribs (3-2).

3. The heat dissipating and exchanging structure device for the high power density motor according to claim 2, wherein: two heat dissipation ribs (3-3) are arranged between two adjacent stator ribs (3-2).

4. The heat dissipating and exchanging structure device for the high power density motor according to claim 3, wherein: and a buckle sheet groove (3-4-1) is processed on the stator punching sheet (3-4).

5. The heat dissipating and exchanging structure device for the high power density motor according to claim 4, wherein: the plurality of radiating ribs (3-3) are arranged in the width direction of the stator punching sheet (3-4).

6. The heat dissipating and exchanging structure device for the high power density motor according to claim 5, wherein: the heat dissipation ribs (3-3) are strip-shaped heat dissipation ribs.

7. The heat dissipating and exchanging structure device for the high power density motor according to claim 6, wherein: the longitudinal section of the heat dissipation rib (3-3) is shaped like a T.

8. The heat dissipating and exchanging structure device for the high power density motor according to claim 7, wherein: the heat exchange holes (3-3-1) are arranged in the length direction of the heat dissipation ribs (3-3).

9. The heat dissipating and exchanging structure device for the high power density motor according to claim 8, wherein: the heat exchange holes (3-3-1) penetrate through the length direction of the heat dissipation ribs (3-3).