Integrated motor heat dissipation shell

Abstract

The utility model discloses an integrated motor heat radiation housing, comprising a main housing part with a containing cavity inside, and the outer wall of the main housing part is provided with convex heat radiation ribs; a stator and a rotor are mounted in the accommodating cavity; the motor heat dissipation housing further comprises a speed reducer half housing which is integrally formed with the accommodating cavity. The side faces of the heat dissipation ribs are perpendicular to the axial direction of the stator, the multiple sets of heat dissipation ribs are arranged in a linear array mode in the axial direction of the stator, and an inwards-concave air channel is formed between every two adjacent heat dissipation ribs. When the motor is used, the stator axial direction of the motor is perpendicular to the advancing direction of the vehicle with the motor, so that air flow generated when the vehicle runs can flow along the air channels between the adjacent radiating ribs in the axial direction, heat is taken away in an accelerated manner, and the radiating efficiency is improved. On the other hand, part of heat generated by the stator and the rotor in the containing cavity can be transmitted to the speed reducer half shell, the speed reducer half shell can assist in heat dissipation, and the heat dissipation effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to an integrated motor heat dissipation housing. Background Art

[0002] As one of the core components of new energy vehicles, the working performance of the motor directly affects the power and economy of the whole vehicle. The motor will generate a lot of heat during operation. If the heat cannot be dissipated in time and effectively, the motor temperature will be too high, which will lead to reduced efficiency, reduced power and even damage. Therefore, motor heat dissipation is crucial for new energy vehicles. A good heat dissipation system can ensure that the motor operates stably and efficiently under various working conditions, while also extending the service life of the motor and improving the safety and reliability of the vehicle. In addition, efficient heat dissipation technology can also help reduce the size and weight of the motor, which is conducive to the lightweight design of the vehicle, thereby further improving the overall performance and market competitiveness of new energy vehicles. In short, motor heat dissipation is one of the key technologies of new energy vehicles and is of great significance to promoting the development of the new energy vehicle industry.

[0003] There are two types of motor heat dissipation: forced heat dissipation (including oil cooling, water cooling and forced fan cooling) and non-forced heat dissipation (natural cooling). This patent is an innovation for non-forced heat dissipation. It is also a motor heat dissipation housing for a powertrain that integrates a motor, a reducer, and a motor controller. This integrated motor heat dissipation housing is parallel to the wind flow direction, which is more conducive to heat dissipation, and also uses the reducer housing for heat dissipation.

[0004] In the prior art, patent CN103280912A discloses a casing of an aluminum profile motor, the casing of this motor is obtained by cutting through a stretched profile, the heat dissipation ribs on the surface of the casing are parallel to the axial direction of the motor output shaft, and the motor is installed in a vehicle with the motor shaft basically installed horizontally, so (the heat dissipation ribs are perpendicular to the wind flow direction), the setting of the heat dissipation ribs is difficult to dissipate heat well with the help of airflow, and the heat dissipation effect is poor. Utility Model Content

[0005] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides an integrated motor heat dissipation housing that can improve the heat dissipation effect and ensure the performance of the motor.

[0006] Technical solution: To achieve the above purpose, the motor heat dissipation housing of the utility model comprises a main housing portion with an accommodating cavity inside, and the outer wall of the main housing portion has outwardly protruding heat dissipation ribs; the accommodating cavity is used to install the stator and the rotor;

[0007] The motor heat dissipation housing also includes a reducer half shell integrally formed with the accommodating cavity; the side surface of the heat dissipation rib is perpendicular to the axial direction of the stator, and in the axial direction of the stator, a plurality of groups of the heat dissipation ribs are arranged in a linear array, and concave air ducts are formed between adjacent heat dissipation ribs;

[0008] When in use, the stator axis of the motor is perpendicular to the forward direction of the vehicle equipped with the motor.

[0009] Furthermore, a plurality of axial ribs extending along the axial direction of the stator are formed on the outer side of the main housing portion.

[0010] Furthermore, the axial ribs and the heat dissipation ribs are arranged at the same height.

[0011] Furthermore, an opening is formed in the axial rib, so that the air ducts on both sides of the axial rib are connected, which can facilitate the airflow to move continuously around the main shell part and improve the heat dissipation effect.

[0012] Furthermore, part of the heat dissipation ribs extend to the reducer half shell and are connected to the outer wall of the reducer half shell. This method can play a role in structural reinforcement, weight reduction, heat conduction and heat dissipation.

[0013] Furthermore, the reducer half shell has a mounting platform on its outward side, and the mounting platform has a mounting hole; the reducer half shell also includes a peripheral portion arranged around the mounting platform, and a hollow portion open outward is provided between the peripheral portion and the mounting platform.

[0014] Furthermore, a plurality of connecting ribs are provided between the peripheral portion and the mounting platform to ensure structural strength.

[0015] Furthermore, an end cover is installed at the mouth of the accommodating cavity, and a heat insulating sheet is provided between the end cover and the mouth of the accommodating cavity.

[0016] Furthermore, the main body of the heat insulation sheet is a steel plate, and rubber is attached to both sides of the steel plate. In actual use, a motor controller is installed on the outer side of the end cover, and the heat insulation sheet can prevent the motor part and the motor controller part from transferring heat to each other and causing mutual influence.

[0017] Beneficial effects: The integrated motor heat dissipation housing of the utility model has the following beneficial effects:

[0018] (1) In the present invention, on the one hand, by providing heat dissipation ribs and restricting the installation method of the motor with the heat dissipation housing, the airflow generated when the vehicle is running can flow along the air duct between the axially adjacent heat dissipation ribs, accelerating the removal of heat and improving the heat dissipation efficiency. On the other hand, by manufacturing the reducer half shell and the main shell part as an integral molding, part of the heat generated by the stator and the rotor in the accommodating cavity can be transferred to the reducer half shell, and the reducer half shell can assist in heat dissipation, further improving the heat dissipation effect.

[0019] (2) The structural design of the reducer half shell can increase the heat dissipation area, dissipate the heat transferred from the main shell in time, and reduce weight, making the motor lightweight.

[0020] (3) By providing axial ribs in combination with heat dissipation ribs, a longitudinal and transverse rib network can be formed to strengthen the structure of the main shell portion, so that the solid wall thickness of the accommodating cavity can be reduced, which is conducive to the dissipation of internal heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the structural diagram of the motor heat dissipation housing;

[0022] Figure 2 This is a three-dimensional structural diagram of the motor heat dissipation housing;

[0023] Figure 3 It is a cross-sectional structural diagram of the heat dissipation housing of the motor in the preferred embodiment;

[0024] Figure 4 This is a structural diagram of the motor heat dissipation housing with end covers.

[0025] In the figure: 1-main shell; a-accommodating cavity; b-heat dissipation ribs; c-axial ribs; 2-reducer half shell; d-mounting platform; e-mounting hole; f-outer part; g-hollow part; h-connecting ribs; 3-end cover; 4-thermal insulation sheet. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings.

[0027] like Figure 1-Figure 2 The motor heat dissipation housing shown includes a main housing portion 1 with an internal accommodating cavity a, and the outer wall of the main housing portion 1 has protruding heat dissipation ribs b; the accommodating cavity a is used to install the stator and the rotor; the motor heat dissipation housing also includes a reducer half shell 2 integrally formed with the accommodating cavity a; the side of the heat dissipation rib b is perpendicular to the stator axial direction, and in the stator axial direction, multiple groups of the heat dissipation ribs b are arranged in a linear array, and concave air ducts are formed between adjacent heat dissipation ribs b; when in use, the stator axial direction of the motor is perpendicular to the forward direction of the vehicle with the motor.

[0028] In the utility model, on the one hand, by providing heat dissipation ribs b and limiting the installation method of the motor with the heat dissipation housing, the airflow generated when the vehicle is running can flow along the air duct between the axially adjacent heat dissipation ribs b, accelerate the removal of heat, and improve the heat dissipation efficiency. On the other hand, by manufacturing the reducer half shell 2 and the main housing part 1 as an integral molding, part of the heat generated by the stator and the rotor in the accommodating cavity a can be transferred to the reducer half shell 2, and the reducer half shell 2 can assist in heat dissipation, further improving the heat dissipation effect.

[0029] Preferably, a plurality of axial ribs c extending along the axial direction of the stator are further formed on the outer side of the main housing portion 1. The axial ribs c are arranged at the same height as the heat dissipation ribs b. By providing the axial ribs c and combining with the heat dissipation ribs b, a longitudinal and transverse rib network can be formed to strengthen the structure of the main housing portion 1, so that the physical wall thickness of the accommodating cavity a can be reduced, which is conducive to the dissipation of internal heat.

[0030] In a preferred embodiment, Figure 3 As shown, an opening is formed in the axial rib c, so that the air ducts on both sides of the axial rib c are connected, which can facilitate the airflow to move continuously around the main shell part 1 and improve the heat dissipation effect.

[0031] Part of the heat dissipation ribs b extends to the reducer half shell 2 and is connected to the outer wall of the reducer half shell 2. This method can play a role in structural reinforcement, weight reduction, heat conduction and heat dissipation.

[0032] The reducer half shell 2 has a mounting platform d on the outward side, and the mounting platform d has a mounting hole e; the reducer half shell 2 also includes a peripheral portion f arranged around the mounting platform d, and a hollow portion g open to the outside is provided between the peripheral portion f and the mounting platform d. The structural design of the reducer half shell 2 can increase the heat dissipation area, dissipate the heat transferred from the main housing portion 1 in time, and reduce weight, making the motor lightweight. In addition, there are multiple connecting ribs h between the peripheral portion f and the mounting platform d to ensure structural strength.

[0033] Preferably, if Figure 4 As shown, the mouth of the accommodating cavity a is provided with an end cap 3, and a heat insulating sheet 4 is provided between the end cap 3 and the mouth of the accommodating cavity a. The main body of the heat insulating sheet 4 is a steel plate, and rubber is attached to both sides of the steel plate. In actual use, a motor controller is installed on the outer side of the end cap 3, and the heat insulating sheet 4 can prevent the motor part and the motor controller part from transferring heat to each other and causing mutual influence.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An integrated motor heat dissipation housing, comprising a main housing portion (1) having an internal accommodation cavity (a), wherein the outer wall of the main housing portion (1) has an outwardly protruding heat dissipation rib (b); the accommodation cavity (a) is used to install a stator and a rotor; and characterized in that: The motor heat dissipation housing further comprises a reducer half shell (2) integrally formed with the accommodating cavity (a); the side surface of the heat dissipation ribs (b) is perpendicular to the axial direction of the stator, and in the axial direction of the stator, a plurality of groups of the heat dissipation ribs (b) are arranged in a linear array, and concave air ducts are formed between adjacent heat dissipation ribs (b); When in use, the stator axis of the motor is perpendicular to the forward direction of the vehicle equipped with the motor.

2. The integrated motor heat dissipation housing according to claim 1, characterized in that: The outer side of the main housing portion (1) is also formed with a plurality of axial ribs (c) extending along the axial direction of the stator.

3. The integrated motor heat dissipation housing according to claim 2, characterized in that: The axial ribs (c) are arranged at the same height as the heat dissipation ribs (b).

4. The integrated motor heat dissipation housing according to claim 3, characterized in that: An opening is formed in the axial rib (c), so that the air ducts on both sides of the axial rib (c) are connected.

5. The integrated motor heat dissipation housing according to claim 1, characterized in that: Part of the heat dissipation ribs (b) extends to the reducer half shell (2) and is connected to the outer wall of the reducer half shell (2).

6. The integrated motor heat dissipation housing according to claim 1, characterized in that: The reducer half shell (2) has a mounting platform (d) on its outward side, and the mounting platform (d) has a mounting hole (e); the reducer half shell (2) also includes a peripheral portion (f) arranged around the mounting platform (d), and a hollow portion (g) open outward is provided between the peripheral portion (f) and the mounting platform (d).

7. The integrated motor heat dissipation housing according to claim 6, characterized in that: A plurality of connecting ribs (h) are provided between the outer portion (f) and the mounting platform (d).

8. The integrated motor heat dissipation housing according to claim 1, characterized in that: An end cover (3) is installed at the mouth of the accommodating chamber (a), and a heat insulating sheet (4) is provided between the end cover (3) and the mouth of the accommodating chamber (a).

9. The integrated motor heat dissipation housing according to claim 8, characterized in that: The main body of the heat insulation sheet (4) is a steel plate, and rubber is attached to both sides of the steel plate.

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