Brushless motor with water cooling structure

Abstract

The utility model relates to a brushless motor with a water cooling structure, and belongs to the technical field of brushless motors, the brushless motor comprises a motor shell, a stator assembly and a rotor assembly, the stator assembly and the rotor assembly are arranged in the motor shell, a water cooling mechanism is further arranged on the surface of the motor shell, a plurality of clamping grooves are uniformly formed in the surface of the motor shell in a protruding mode, and the water cooling mechanism is arranged in the clamping grooves. The water cooling mechanism comprises a cooling shell, the surface of the motor shell is sleeved with the cooling shell, a heat conduction block is arranged at the position, corresponding to the clamping groove, of the inner wall of the cooling shell, and the heat conduction block is arranged in the clamping groove in a matched mode. According to the brushless motor, the cooling shell is additionally arranged on the surface of the motor shell, the circulating water is introduced into the cooling shell, the heat conduction block is arranged between the cooling shell and the motor shell to transfer heat, and the circulating water can quickly take away heat generated by working of the motor, so that the brushless motor is in a relatively low-temperature working environment, and the performance of the brushless motor can be fully exerted.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of brushless motors, in particular to a brushless motor with a water cooling structure. BACKGROUND

[0002] A brushless DC motor is composed of a motor body and a driver and is a typical mechatronic product. Since the brushless DC motor is operated in a self-control mode, a starting winding is not additionally arranged on the rotor like a synchronous motor under heavy load starting of frequency conversion speed regulation, and oscillation and step-out do not occur when a load suddenly changes.

[0003] The existing brushless motor generates a large amount of heat during operation. In some high-temperature working environments, the brushless motor heats up quickly, which easily affects the performance of the motor itself. Therefore, a brushless motor with good heat dissipation effect needs to be developed. CONTENT OF THE INVENTION

[0004] The application aims to provide a brushless motor with a water cooling structure to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the application provides a brushless motor with a water cooling structure, which adopts the following technical scheme:

[0006] The brushless motor with a water cooling structure comprises a motor shell, a stator assembly and a rotor assembly. The stator assembly and the rotor assembly are arranged in the motor shell. A water cooling mechanism is arranged on the surface of the motor shell. A plurality of clamping grooves are uniformly arranged on the surface of the motor shell. The clamping grooves are open at one end. The water cooling mechanism comprises a cooling shell. The cooling shell is sleeved on the surface of the motor shell. Heat conduction blocks are arranged on the inner wall of the cooling shell corresponding to the positions of the clamping grooves. The heat conduction blocks are arranged in the clamping grooves in a matched mode. The heat conduction blocks are fixed between the end portions and the clamping grooves through screws. A cooling cavity is arranged in the cooling shell. Water inlets and water outlets are arranged on the cooling cavity, respectively.

[0007] Preferably, annular pipes are arranged in the cooling shell corresponding to the positions of the water inlets. The annular pipes are connected with the water inlets in a communicated mode. A plurality of water spraying holes are uniformly arranged on the annular pipes in the direction of the water outlets.

[0008] Through the above technical scheme, the annular pipes can play a flow equalizing role. The water is uniformly sprayed in the cooling shell, so that the water on the upper side of the cooling shell can also be continuously circulated when the motor is installed in an inclined mode.

[0009] Preferably, buckles are arranged on the surface of the motor shell to facilitate the testing of the real-time temperature of the motor. Temperature sensors are fixed in the buckles.

[0010] Preferably, in order to improve the heat transfer effect, the heat-conducting block is coated with heat-conducting silicon grease between the heat-conducting block and the clamping groove.

[0011] Preferably, in order to enhance the strength of the cooling shell and avoid damage to the cooling shell, the surface of the cooling shell is wrapped with a protective sleeve.

[0012] Preferably, a plurality of baffles are further arranged in the cooling shell, the plurality of baffles are arranged in the cooling shell in a ring shape and separate the cooling shell into a plurality of cooling chambers, and the annular pipe is provided with a water injection hole at the end corresponding to the cooling chamber.

[0013] By adopting the above technical scheme, the water sprayed by the annular pipe can correspond to the cooling chamber filled with water, so that the cooling shell can be uniformly filled with water, the heat absorption effect is good, and the cooling chamber has a smaller volume than the cooling shell, the water circulation is faster, and the heat is more easily taken away.

[0014] In summary, the present application has at least one of the following beneficial technical effects: the brushless motor with a water cooling structure is provided with a cooling shell on the surface of the motor shell, circulating water is introduced into the cooling shell, a heat-conducting block is arranged between the cooling shell and the motor shell to transfer heat, and the circulating water can quickly take away the heat generated by the motor during operation, so that the brushless motor is in a relatively low-temperature working environment, and the brushless motor can fully exert its performance. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0016] Figure 2 is a schematic diagram of the structure of the motor shell in the embodiment of the present application.

[0017] Figure 3 is a schematic diagram of the structure of the cooling shell in the embodiment of the present application.

[0018] Figure 4 is a schematic diagram of the internal structure of the cooling shell in the embodiment of the present application.

[0019] Reference signs: 1, motor shell; 11, clamping groove; 2, cooling shell; 21, heat-conducting block; 3, annular pipe; 31, water injection hole; 4, baffle. DETAILED DESCRIPTION

[0020] The following will be described in detail in combination with the accompanying drawings. Figures 1-4 The present application will be further described in detail.

[0021] The embodiment of the present application discloses a brushless motor with a water cooling structure, which will be described in detail with reference to the accompanying drawings. Figures 1-4, including motor shell 1, stator assembly and rotor assembly, stator assembly and rotor assembly are arranged in motor shell 1, motor shell 1 surface is also provided with water cooling mechanism, motor shell 1 surface is uniformly provided with a plurality of clamping grooves 11, clamping groove 11 is one end opening structure, water cooling mechanism includes cooling shell 2, cooling shell 2 is sleeved on the surface of motor shell 1, the inner wall of cooling shell 2 is provided with heat conduction block 21 at the position corresponding to clamping groove 11, heat conduction block 21 is matched and arranged in clamping groove 11, and the end of heat conduction block 21 is fixed between clamping groove 11 by screw, heat conduction block 21 and clamping groove 11 are coated with heat-conducting silicone grease, cooling cavity is arranged in cooling shell 2, and water inlet and water outlet are arranged on the cooling cavity respectively.

[0022] Refer to Figure 4 , the position corresponding to the water inlet in the cooling shell 2 is provided with an annular pipe 3, the annular pipe 3 is communicated with the water inlet, the annular pipe 3 is uniformly provided with a plurality of water spray holes 31 towards the direction of the water outlet, a plurality of baffles 4 are also arranged in the cooling shell 2, the plurality of baffles 4 are arranged in the cooling shell 2 in a ring shape and separate the cooling shell 2 into a plurality of cooling chambers, and the annular pipe 3 is provided with water spray holes 31 at the end corresponding to the cooling chamber;

[0023] By arranging the annular pipe 3 and the baffle 4, the annular pipe 3 can play the role of uniform flow, and the water can be uniformly sprayed in the cooling shell 2, and the cooling chamber separated by the baffle 4 can make the water uniformly fill the cooling shell 2, so that the water on the upper side of the cooling shell 2 can also be quickly circulated when the motor is installed obliquely, thereby having better heat dissipation effect.

[0024] In order to enhance the strength of the cooling shell 2 and avoid damage to the cooling shell 2, the surface of the cooling shell 2 is wrapped with a protective sleeve.

[0025] In order to facilitate testing the real-time temperature of the motor, the surface of the motor shell 1 is also provided with a buckle (not shown in the figure), and a temperature sensor is fixed in the buckle.

[0026] The implementation principle of the brushless motor with water cooling structure in the embodiment of the application is as follows:

[0027] When the brushless motor works, heat is transmitted to the heat conduction block 21 through the motor shell 1, the heat conduction block 21 transmits the heat to the cooling shell 2, and the heat can be absorbed by the water in the cooling shell 2, and the water in the cooling shell 2 is circulating, so the circulating water can quickly take away the heat, thereby quickly cooling the brushless motor and making it in a relatively low temperature environment, so that it can have better working performance.

[0028] The above are the preferred embodiments of the application, which do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape and principle of the application shall be covered within the protection scope of the application.

Claims

1. A brushless motor with a water-cooled structure, comprising a motor housing (1), a stator assembly, and a rotor assembly, wherein the stator assembly and the rotor assembly are disposed within the motor housing (1), characterized in that: The surface of the motor housing (1) is also provided with a water cooling mechanism. The surface of the motor housing (1) is uniformly provided with multiple slots (11). The slots (11) are open at one end. The water cooling mechanism includes a cooling shell (2). The cooling shell (2) is sleeved on the surface of the motor housing (1). The inner wall of the cooling shell (2) is provided with a heat-conducting block (21) corresponding to the position of the slot (11). The heat-conducting block (21) is matched and disposed in the slot (11). The end of the heat-conducting block (21) is fixed to the slot (11) by screws. The cooling shell (2) is provided with a cooling cavity. The cooling cavity is provided with an inlet and an outlet respectively.

2. The brushless motor with a water-cooled structure according to claim 1, characterized in that: An annular pipe (3) is provided inside the cooling shell (2) at the position corresponding to the water inlet. The annular pipe (3) is connected to the water inlet, and a plurality of spray holes (31) are evenly opened in the direction of the water outlet.

3. The brushless motor with a water-cooled structure according to claim 1, characterized in that: The surface of the motor housing (1) is also provided with a buckle, and a temperature sensor is fixed inside the buckle.

4. The brushless motor with a water-cooled structure according to claim 1, characterized in that: Thermal grease is applied between the heat-conducting block (21) and the slot (11).

5. The brushless motor with a water-cooled structure according to claim 1, characterized in that: The surface of the cooling shell (2) is covered with a protective sleeve.

6. The brushless motor with a water-cooled structure according to claim 2, characterized in that: The cooling shell (2) is also provided with several baffles (4), which are arranged in a ring inside the cooling shell (2) and divide the cooling shell (2) into several cooling chambers. The annular pipe (3) is provided with water spray holes (31) at the end corresponding to the cooling chamber.

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