Heat dissipation shell of integrated motor controller

Abstract

The utility model discloses a heat radiation housing of an integrated motor controller, comprising a cylindrical main body part which is internally provided with a controller installation cavity, and the outer wall of the cylindrical main body part is provided with heat radiation ribs; the end part of the main body part is provided with a plurality of radiating fins which are arranged in parallel, and a first radiating air channel is formed between every two adjacent radiating fins; the heat dissipation ribs extend in the circumferential direction of the main body part, and the multiple sets of heat dissipation ribs are arranged at equal intervals in the axial direction of the main body part, so that a plurality of annular second heat dissipation air channels are formed in the circumferential direction of the main body part; when the heat dissipation shell is used, the advancing direction of a vehicle where the heat dissipation shell is located is perpendicular to the axial direction of the main body part, and the advancing direction is along the first heat dissipation air channel. Air flow generated in the vehicle walking process can pass through the first heat dissipation air channel and the second heat dissipation air channel more smoothly, heat generated by the motor controller is transmitted to the side wall of the bottom of the main body part and can be dissipated out more efficiently by the heat dissipation ribs and the heat dissipation fins, temperature control can be effectively conducted on the motor controller, and the motor controller can operate stably.

Description

Technical Field

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

[0002] As one of the core components of an in-vehicle motor, the motor controller is responsible for controlling the speed and torque of the motor. Its normal operation is crucial for ensuring the power performance of the vehicle. However, a large amount of heat energy is generated during the operation of the motor controller. If not effectively managed, excessive temperature will cause the performance of internal electronic components of the controller to decline, accelerate aging or even fail, seriously affecting the reliability of the motor. Therefore, the heat dissipation design of the motor controller is particularly important. Good heat dissipation measures can not only ensure that the controller maintains a stable and efficient working state in a complex and changeable working environment, but also extend the service life of the controller and reduce maintenance costs. In addition, an effective heat dissipation scheme also helps to reduce the volume and weight of the controller, promote the lightweight design of the overall vehicle, and further improve the energy utilization efficiency and vehicle performance. In short, the heat dissipation technology of the motor controller is not only the key to ensuring the safe and reliable operation of new energy vehicles, but also an important factor in promoting the technological progress and development of new energy vehicles.

[0003] In the prior art, the measure for dissipating heat from the motor controller is mainly the heat dissipation plate shown in Patent CN 204884777U. This kind of radiator has poor heat dissipation effect, and it is difficult to ensure the operation stability of the motor controller. Content of the Utility Model

[0004] Object of the Invention: In order to overcome the deficiencies existing in the prior art, the utility model provides a heat dissipation housing for an integrated motor controller with good heat dissipation effect and capable of improving the operation stability of the controller. Moreover, this heat dissipation housing is integrated into the motor to form a multi-in-one power assembly.

[0005] Technical Solution: To achieve the above object, the heat dissipation housing of the motor controller of the utility model includes a cylindrical main body portion with a controller installation cavity inside, and its outer wall has heat dissipation ribs.

[0006] The end of the main body portion has a plurality of heat dissipation fins arranged in parallel, and a first heat dissipation air duct is formed between adjacent heat dissipation fins; the heat dissipation ribs extend along the circumferential direction of the main body portion, and multiple groups of heat dissipation ribs are equidistantly arranged along the axial direction of the main body portion, so that a plurality of annular second heat dissipation air ducts are formed on the circumference of the main body portion, and the second heat dissipation air ducts are formed between adjacent heat dissipation ribs; during use, the forward direction of the vehicle where the heat dissipation housing is located is perpendicular to the axial direction of the main body portion, and the forward direction is along the first heat dissipation air duct. Here, the forward direction of the vehicle is the direction in the ideal state, that is, the vehicle travels straight forward without deflection and the ground where the vehicle is located is flat.

[0007] Furthermore, during use, the motor controller is at least in contact with the bottom surface of the controller installation cavity. That is, the heat sink and the motor controller are respectively disposed on the inner and outer sides of the end of the main body portion.

[0008] Furthermore, an end cover is installed at the opening of the controller installation cavity, and a heat insulation sheet is installed between the end cover and the opening of the controller installation cavity.

[0009] Furthermore, the heat insulation sheet has a steel substrate, and vulcanized rubber layers are provided on both sides of the steel substrate. During use, a motor part is installed on the other side of the end cover, and the motor part includes a motor housing, a stator, and a rotor.

[0010] Furthermore, a plurality of mounting holes are provided around the opening of the controller installation cavity; when viewed axially, the mounting holes are located outside the outer contour of the main body portion, and a relief groove is formed between the heat dissipation ribs and is aligned with each mounting hole. During installation, the relief groove makes way for a screwdriver so that the screwdriver can operate on the screw placed in the mounting hole.

[0011] Furthermore, a fixing column with a fixing hole is provided at one end of the main body portion where the heat sink is provided.

[0012] Furthermore, a window is provided on the side wall of the main body portion, and an openable cover plate is installed on the window. Through the window, it is convenient to disassemble and assemble parts in the controller installation cavity.

[0013] Furthermore, a mounting position for installing a cable fixing member or a cable connector is provided on the main body portion.

[0014] Beneficial effects: The heat dissipation housing of the integrated motor controller of the present invention has the following beneficial effects:

[0015] (1) In the heat dissipation housing of the present invention, by designing the first heat dissipation air duct and the second heat dissipation air duct and restricting the relationship between the posture of the heat dissipation housing and the vehicle forward direction, the airflow generated during vehicle travel can more smoothly pass through the first heat dissipation air duct and the second heat dissipation air duct. The heat generated by the motor controller is transferred to the side wall of the bottom of the main body portion and can be more efficiently dissipated by the heat dissipation ribs and the heat sink, effectively controlling the temperature of the motor controller and enabling it to operate stably.

[0016] (2) When integrating the motor, by providing the heat insulation sheet, it is possible to prevent the motor part and the motor controller from transferring heat to each other and affecting each other.

[0017] (3) By setting the mounting holes and the fixing posts, and arranging the mounting holes outward, the heat dissipation housing can be connected to the motor part with larger screws. By setting the fixing posts, the heat dissipation housing and the motor connected to the heat dissipation housing can be installed by connecting the fixing posts. In this way, the installation convenience of the motor with the heat dissipation housing of the present utility model can be improved. Description of the Drawings

[0018] Figure 1 It is a three-dimensional structure diagram of the heat dissipation housing of the motor controller;

[0019] Figure 2 It is a top view structure diagram of the heat dissipation housing of the motor controller;

[0020] Figure 3 It is a structure diagram of other parts excluding the end cover, heat insulation sheet and cover plate.

[0021] In the figure: 1 - main body part; a - controller installation cavity; b - mounting hole; c - window; d - mounting position; 2 - heat dissipation ribs; 3 - heat dissipation fins; 4 - end cover; 5 - heat insulation sheet; 6 - fixing post; 7 - cover plate. Detailed Embodiment

[0022] The present utility model will be further described below with reference to the accompanying drawings.

[0023] As Figures 1-3 shown in the integrated motor controller heat dissipation housing, which includes a cylindrical main body part 1 with a controller installation cavity a inside, and heat dissipation ribs 2 on its outer wall; the end of the main body part 1 has a plurality of heat dissipation fins 3 arranged in parallel, and a first heat dissipation air duct is formed between adjacent heat dissipation fins 3; the heat dissipation ribs 2 extend along the circumferential direction of the main body part 1, and multiple groups of heat dissipation ribs 2 are arranged at equal intervals along the axial direction of the main body part 1, so that a plurality of annular second heat dissipation air ducts are formed on the circumference of the main body part 1, and the second heat dissipation air ducts are formed between adjacent heat dissipation ribs 2; during use, the forward direction of the vehicle where the heat dissipation housing is located is perpendicular to the axial direction of the main body part 1, and the forward direction is along the first heat dissipation air duct. Here, the forward direction of the vehicle is the direction in the ideal state, that is, the vehicle travels straight forward without deflection and the ground where the vehicle is located is flat.

[0024] During use, the motor controller is at least in contact with the bottom surface of the controller installation cavity a. That is, the heat dissipation fins 3 and the motor controller are respectively located on the inner and outer sides of the end of the main body part 1.

[0025] In the above heat dissipation housing, by designing the first heat dissipation air duct and the second heat dissipation air duct and restricting the relationship between the posture of the heat dissipation housing and the vehicle forward direction, the air flow generated during the vehicle running can pass through the first heat dissipation air duct and the second heat dissipation air duct more smoothly. The heat generated by the motor controller is transferred to the side wall at the bottom of the main body 1, and can be dissipated more efficiently by the heat dissipation ribs 2 and the heat dissipation fins 3, so that the temperature of the motor controller can be effectively controlled and it can operate stably.

[0026] A end cover 4 is installed at the opening of the controller installation cavity a, and a heat insulation sheet 5 is installed between the end cover 4 and the opening of the controller installation cavity a. The heat insulation sheet 5 has a steel substrate, and vulcanized rubber layers are provided on both sides of the steel substrate. During use, a motor part is installed on the other side of the end cover 4, and the motor part includes a motor housing, a stator and a rotor. By providing the heat insulation sheet 5, it can prevent the motor part and the motor controller from transferring heat to each other and affecting each other.

[0027] There are a plurality of mounting holes b around the opening of the controller installation cavity a; Figure 2 As shown, when viewed axially, the mounting holes b are located outside the outer contour of the main body 1, and a relief groove is formed between the heat dissipation ribs 2 and is aligned with each mounting hole b. During installation, the relief groove provides space for a screwdriver, so that the screwdriver can operate on the screw placed in the mounting hole b.

[0028] At one end of the main body 1 where the heat dissipation fins 3 are provided, fixing columns 6 with fixing holes are also provided. By providing the mounting holes b and the fixing columns 6, by arranging the mounting holes b outward, the heat dissipation housing can be connected to the motor part with larger screws. By providing the fixing columns 6, the heat dissipation housing and the motor connected to the heat dissipation housing can be installed by connecting the fixing columns 6. In this way, the convenience of installing the motor with the heat dissipation housing of the present utility model can be improved.

[0029] A window c is provided on the side wall of the main body 1, and an openable cover plate 7 is installed on the window c. Through the window c, it is convenient to perform operations such as disassembly and assembly on the part inside the controller installation cavity a. The main body 1 has a mounting position d for installing a cable fixing member or a cable connector to fix and plug and unplug the cable.

[0030] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A heat dissipation housing for an integrated motor controller, which includes a cylindrical main body part (1) with a controller installation cavity (a) inside, and heat dissipation ribs (2) on its outer wall; characterized in that: At the end of the main body part (1), there are multiple heat dissipation fins (3) arranged in parallel, and a first heat dissipation air duct is formed between adjacent heat dissipation fins (3); the heat dissipation ribs (2) extend along the circumferential direction of the main body part (1), and multiple groups of the heat dissipation ribs (2) are equidistantly arranged along the axial direction of the main body part (1), so that a plurality of annular second heat dissipation air ducts are formed in the circumferential direction of the main body part (1); during use, the forward direction of the vehicle where the heat dissipation housing is located is perpendicular to the axial direction of the main body part (1), and the forward direction is along the first heat dissipation air duct.

2. The heat dissipation housing of the integrated motor controller according to claim 1, characterized in that, During use, the motor controller is at least in contact with the bottom surface of the controller installation cavity (a).

3. The heat dissipation housing of the integrated motor controller according to claim 1, characterized in that A end cover (4) is installed at the opening of the controller installation cavity (a), and a heat insulation sheet (5) is installed between the end cover (4) and the opening of the controller installation cavity (a).

4. The heat dissipation housing of the integrated motor controller according to claim 3, characterized in that, The heat insulation sheet (5) has a steel substrate, and vulcanized rubber layers are provided on both sides of the steel substrate.

5. The heat dissipation housing of the integrated motor controller according to claim 1, characterized in that There are multiple installation holes (b) around the opening of the controller installation cavity (a); when viewed axially, the installation holes (b) are located outside the outer contour of the main body part (1), and a relief groove is formed between the heat dissipation ribs (2) opposite to each installation hole (b).

6. The heat dissipation housing of the integrated motor controller according to claim 5, characterized in that, At one end of the main body part (1) where the heat dissipation fins (3) are provided, a fixing column (6) with a fixing hole is also provided.

7. The heat dissipation housing of the integrated motor controller according to claim 1, wherein, There is a window (c) on the side wall of the main body part (1), and an openable cover plate (7) is installed on the window (c).

8. The heat dissipation housing of the integrated motor controller according to claim 1, wherein There is an installation position (d) on the main body part (1) for installing a cable fixing member or a cable connector.

Images