Motor module integrated with liquid cooling channel

Abstract

The utility model discloses motor module of integrated liquid cooling passage belongs to motor heat dissipation technical field, include: motor casing, stator, with motor casing fixed, rotor, it rotatablely set in the inside or outside of stator, first liquid cooling flow channel, integrated setting in the motor casing, first liquid cooling flow channel surrounds stator setting, first liquid cooling flow channel is provided with first liquid inlet and first liquid outlet. The utility model example's motor module of integrated liquid cooling passage, this motor module utilizes cooling liquid to carry out temperature reduction to motor module, and the compact structure, the high degree of integration, and the excellent heat dissipation effect.

Description

Technical Field

[0001] This utility model relates to the field of motor heat dissipation technology, and in particular to a motor module with integrated liquid cooling channels. Background Technology

[0002] In fields such as high-performance robotics and servo drives, high-power-density motors are the core power source. When a motor is operating, the stator windings and core generate a significant amount of heat. If this heat cannot be dissipated in time, it can lead to excessive temperature rise, causing problems such as demagnetization of permanent magnets, aging of winding insulation, and decreased efficiency, severely limiting the motor's continuous output capability and lifespan.

[0003] Traditional motor cooling methods primarily rely on natural convection cooling from the casing surface or forced air cooling using a cooling fan. Natural convection cooling is inefficient and cannot meet the cooling requirements of high-power-density motors. While forced air cooling improves cooling capacity to some extent, the introduction of fans increases space occupation, weight, and energy consumption. Furthermore, fans generate noise during operation and are susceptible to external dust, reducing reliability. Installing air-cooling structures is particularly difficult within the space-constrained environment of robot joints. Utility Model Content

[0004] To address the shortcomings of the existing technology, the purpose of this invention is to provide a motor module with an integrated liquid cooling channel. This motor module utilizes coolant to cool the motor module, resulting in a compact structure, high integration, and excellent heat dissipation.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A motor module with an integrated liquid cooling channel is provided, comprising: Motor housing; The stator is fixed to the motor housing; The rotor is rotatably disposed inside or outside the stator; The first liquid cooling channel is integrated into the motor housing. The first liquid cooling channel surrounds the stator and has a first liquid inlet and a first liquid outlet.

[0006] Furthermore, it also includes a second liquid cooling channel, which is disposed in the end region of the stator winding and is used to dissipate heat from the motor winding; the second liquid cooling channel is provided with a second liquid inlet and a second liquid outlet.

[0007] Furthermore, the flow channel shape of the first liquid cooling channel and / or the second liquid cooling channel is one of annular, serpentine, or spiral.

[0008] Furthermore, the inner walls of the first liquid cooling channel and / or the second liquid cooling channel are provided with turbulence enhancement structures.

[0009] Furthermore, the turbulence enhancement structure is a Tesla valve integrated within the liquid cooling channel.

[0010] Furthermore, it also includes: Temperature sensor; The controller is connected to the temperature sensor signal and adjusts the flow rate of the coolant entering the liquid cooling channel according to the temperature signal detected by the temperature sensor.

[0011] Furthermore, the rotor is an outer rotor that is sleeved outside the stator.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The motor module with integrated liquid cooling channel of this utility model dissipates heat from the motor through the coolant in the liquid cooling channel, achieving ultimate heat dissipation of the core heat-generating area of ​​the motor. It does not require additional external components such as fans and heat dissipation fins, and achieves efficient heat dissipation function in an extremely compact volume, perfectly matching the development trend of miniaturization and lightweighting of robot joints. 2. The integrated liquid cooling channel motor module of this utility model integrates the first liquid cooling channel with the motor housing and sets the second liquid cooling channel at the end of the stator winding, thereby achieving efficient heat dissipation of the core heat source. Attached Figure Description

[0013] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a sectional view; Figure 3 This is a schematic diagram of the first liquid cooling channel structure; Figure 4 This is a schematic diagram of a Tesla valve structure. Figure 5 This is a schematic diagram of the structure of Example 2; Figure 6 This is a sectional view.

[0014] In the diagram: 1-motor housing, 2-stator, 3-rotor, 4-first liquid cooling channel, 5-first liquid inlet, 6-first liquid outlet, 7-second liquid cooling channel, 8-second liquid inlet, 9-second liquid outlet, 10-Tesla valve. Detailed Implementation

[0015] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] Example 1: like Figure 1-3 As shown, this embodiment provides a motor module with an integrated liquid cooling channel, including a motor housing 1, a stator 2, a rotor 3, and a liquid cooling system. The stator 2 is fixed to the motor housing 1, and the rotor 3 is an outer rotor, which is rotatably fitted onto the outside of the stator 2. The liquid cooling system includes an annular first liquid cooling channel 4 machined inside the motor housing 1. The first liquid cooling channel 4 has a first liquid inlet 5 and a first liquid outlet 6. Coolant flows into the first liquid cooling channel 4, directly carrying away the heat generated by the stator 2. The motor module of this embodiment has a simple structure, is easy to manufacture, and can achieve a heat dissipation effect superior to air cooling.

[0018] The coolant may be a water-glycol mixture, fluorocarbon liquid, or other insulating liquid.

[0019] In this embodiment, the motor module further includes a temperature sensor and a controller. The temperature sensor is used to detect the temperature of the stator winding; the controller can adjust the opening of the flow control valve based on the real-time temperature feedback from the temperature sensor, thereby controlling the flow rate of the coolant. Alternatively, a temperature sensor can be added to the outer wall of the first liquid cooling channel 4, and the controller can adjust the flow rate based on the combined temperature sensor readings from different locations. The temperature sensor, flow control valve, and controller are existing technologies and will not be described in detail here.

[0020] In addition, the first liquid inlet 5 and the first liquid outlet 6 can be quick connectors for easy installation.

[0021] The inner wall of the first liquid cooling channel 4 is provided with a turbulence enhancement structure. For example... Figure 4 As shown, the turbulence enhancement structure in this embodiment is a Tesla valve 10. The Tesla valve 10 structure can passively and efficiently stimulate the turbulent state of the coolant, greatly enhance the heat exchange process between the fluid and the flow channel wall, thereby significantly improving the local heat transfer coefficient, and the Tesla valve 10 can continuously promote the return flow of the coolant.

[0022] Example 2: This embodiment is based on Embodiment 1, such as... Figure 5-6As shown, a second liquid cooling channel 7 is added. This second liquid cooling channel 7 is located at the end region of the stator winding and is used to dissipate heat from the motor winding. The second liquid cooling channel 7 has a second liquid inlet 8 and a second liquid outlet 9. The structure of the second liquid cooling channel 7 is similar to that of the first liquid cooling channel 4. The arrangement of the two liquid cooling channels achieves a dual three-dimensional heat dissipation system for both the outer shell and the core, enabling efficient heat dissipation from the core heat source.

[0023] Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-mentioned technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-mentioned technical features or their equivalent features without departing from the inventive concept. For example, technical solutions formed by substituting the above-mentioned features with technical features disclosed in this application (but not limited to) that have similar functions.

Claims

1. A motor module with an integrated liquid cooling channel, characterized in that, include: Motor housing (1); The stator (2) is fixed to the motor housing (1); The rotor (3) is rotatably disposed inside or outside the stator (2); The first liquid cooling channel (4) is integrated in the motor housing (1). The first liquid cooling channel (4) surrounds the stator (2). The first liquid cooling channel (4) is provided with a first liquid inlet (5) and a first liquid outlet (6). It also includes a second liquid cooling channel (7), which is located at the end region of the stator winding and is used to dissipate heat from the motor winding; the second liquid cooling channel (7) is provided with a second liquid inlet (8) and a second liquid outlet (9).

2. The motor module with integrated liquid cooling channel according to claim 1, characterized in that, The flow channel shape of the first liquid cooling channel (4) and / or the second liquid cooling channel (7) is one of annular, serpentine or spiral.

3. The motor module with integrated liquid cooling channel according to claim 1, characterized in that, The inner walls of the first liquid cooling channel (4) and / or the second liquid cooling channel (7) are provided with turbulence enhancement structures.

4. The motor module with integrated liquid cooling channel according to claim 3, characterized in that, The turbulence enhancement structure is a Tesla valve (10) integrated into the liquid cooling channel.

5. The motor module with integrated liquid cooling channel according to claim 1, characterized in that, Also includes: Temperature sensor; The controller is connected to the temperature sensor signal and adjusts the flow rate of the coolant entering the liquid cooling channel according to the temperature signal detected by the temperature sensor.

6. The motor module with integrated liquid cooling channel according to claim 1, characterized in that, The rotor (3) is an outer rotor that is sleeved outside the stator (2).

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