Combined brushless motor

Abstract

The utility model relates to the technical field of brushless motors, in particular to a combined brushless motor, which comprises a motor shell, a motor base is detachably mounted at the bottom of the motor shell, a driving operation mechanism is arranged in the motor shell, and a heat dissipation auxiliary mechanism for cooling the motor shell is arranged in the motor base. The heat dissipation auxiliary mechanism comprises a bolt assembly which is movably installed on the motor base and used for being connected with the motor shell, installation screw holes matched with the bolt assembly are formed in the motor shell, a plurality of air suction through holes are formed in the motor base at equal intervals, and an air suction impeller is movably installed on the inner side of the motor base. According to the utility model, through the arrangement of the heat dissipation auxiliary mechanism and the mutual cooperation between the air transmission conduit and the cooling groove, when the motor works, the air suction impeller sucks external cold air into the cooling groove to form air circulation, so that heat in the motor shell can be rapidly taken out to complete heat dissipation and cooling, and the heat dissipation efficiency is improved. And the temperature of the outer surface of the motor shell is not too high.

Description

Technical Field

[0001] This utility model relates to the field of brushless motor technology, and in particular to a combined brushless motor. Background Technology

[0002] A brushless motor is a type of motor that uses electronic components to control the phase of the rotor current to achieve rotor rotation. Compared with traditional motors, brushless motors have higher power density and efficiency. However, most existing brushless motors have a one-piece casing, which is not easy to disassemble, making it very inconvenient to repair when internal parts are damaged.

[0003] Furthermore, to prevent brushless motors from being damaged by high internal temperatures during prolonged operation, existing brushless motors are generally cooled by blowing out internal heat through cooling fans. This method is ineffective, and the surface of the motor housing usually has a high temperature, posing a significant risk. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a combined brushless motor that solves the technical problems of poor cooling effect and inconvenience in disassembling and repairing damaged internal parts in existing brushless motors. It has the advantages of both quickly removing internal heat from the motor and preventing excessively high surface temperature of the motor.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a combined brushless motor, including a motor housing, a motor base detachably mounted on the bottom of the motor housing, a drive mechanism inside the motor housing, and a heat dissipation auxiliary mechanism inside the motor base for cooling the motor housing. During the operation of the drive mechanism, the heat dissipation auxiliary mechanism automatically and rapidly dissipates heat from the motor housing, thereby preventing the motor from being in a high-temperature state. The heat dissipation auxiliary mechanism includes a bolt assembly movably mounted on the motor base for connecting the motor housing. The motor housing has mounting screw holes that match the bolt assembly. The motor base has several air intake holes at equal intervals. An air intake impeller is movably mounted on the inner side of the motor base, and a micro motor for driving the air intake impeller is fixedly mounted on the outer side of the motor base. A circular baffle is detachably mounted inside the motor base, and an air delivery duct is fixedly mounted on the circular baffle. When the air intake impeller rotates under the action of the micro motor, air enters the interior of the air delivery duct.

[0006] Preferably, an air inlet hole is provided on the inner side wall of the motor housing, and an exhaust hole is provided at the upper end of the motor housing. The air supply duct is connected to the air inlet hole, and cold air enters the interior of the air supply duct and then enters the interior of the air inlet hole.

[0007] Preferably, a cooling groove is provided inside the side wall of the motor housing. The cooling groove is connected to the air inlet hole and the air outlet hole respectively. Cold air enters the cooling groove from the air inlet hole and is discharged outward from the air outlet hole.

[0008] Preferably, the inner wall of the motor housing is coated with thermal grease, which can quickly conduct heat from inside the motor housing to the interior of the cooling tank.

[0009] Preferably, the drive mechanism includes a stator assembly fixedly installed inside the motor housing. The stator assembly is composed of silicon steel sheets and coils. A rotor assembly is movably installed inside the motor housing. The rotor assembly is composed of permanent magnets. When the motor is running, the stator assembly will generate a rotating magnetic field inside the motor housing, and the rotor assembly will rotate under the action of the rotating magnetic field.

[0010] Preferably, the motor housing is equipped with an electronic commutator that controls the rotation direction and speed, and the inner sidewall of the motor housing is equipped with a position sensor that detects the position of the rotor assembly, thereby ensuring that the electronic commutator can accurately control the operation of the motor.

[0011] By employing the above technical solution, this utility model provides a combined brushless motor, which has at least the following beneficial effects:

[0012] 1. This utility model, by setting up a heat dissipation auxiliary mechanism, utilizes the cooperation between the air supply pipe and the cooling tank. When the motor is working, the intake impeller will draw external cold air into the interior of the cooling tank to form an air circulation. This can quickly remove the heat inside the motor housing and complete the heat dissipation and cooling without causing the outer surface temperature of the motor housing to become too high.

[0013] 2. This utility model, by setting up a heat dissipation auxiliary mechanism and utilizing the mutual cooperation between the bolt assembly and the mounting screw holes, enables the motor housing and motor base to be quickly disassembled, facilitating the maintenance and replacement of internal parts of the motor by the staff, and making it convenient to use. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the drive mechanism in this utility model;

[0017] Figure 3 This is a schematic diagram of the heat dissipation auxiliary mechanism in this utility model;

[0018] Figure 4 This is a schematic diagram of the circular baffle in this utility model;

[0019] Figure 5 This is a schematic diagram of the exhaust hole in this utility model.

[0020] In the diagram: 1. Motor housing; 2. Motor base; 3. Drive mechanism; 301. Stator assembly; 302. Rotor assembly; 303. Electronic commutator; 304. Position sensor; 4. Heat dissipation auxiliary mechanism; 401. Bolt assembly; 402. Mounting screw holes; 403. Intake hole; 404. Micro motor; 405. Circular baffle; 406. Air delivery duct; 407. Intake hole; 408. Intake impeller; 409. Exhaust hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] To prevent brushless motors from being damaged by high internal temperatures during prolonged operation, existing brushless motor technologies primarily rely on cooling fans to expel internal heat. This method is ineffective, and the motor housing surface typically remains hot, posing a significant safety hazard. To address this technical deficiency in existing technologies, such as... Figures 1-5 As shown, this embodiment proposes a combined brushless motor that can quickly remove heat from the inside of the motor housing 1 for heat dissipation and cooling without causing the outer surface temperature of the motor housing 1 to become too high. The bottom of the motor housing 1 is detachably equipped with a motor base 2. The inner sidewall of the motor housing 1 is coated with thermal grease, which can quickly conduct heat from the inside of the motor housing 1 to the inside of the cooling tank. The motor housing 1 is equipped with a drive mechanism 3, and the motor base 2 is equipped with a heat dissipation auxiliary mechanism 4 for cooling the motor housing 1. During the operation of the drive mechanism 3, the heat dissipation auxiliary mechanism 4 will automatically and quickly dissipate heat from the motor housing 1, thereby preventing the motor from being in a high-temperature state.

[0024] To extend the service life of the motor and ensure smoother operation, this embodiment includes a drive mechanism 3. Specifically, the drive mechanism 3 includes a stator assembly 301 fixedly installed inside the motor housing 1. The stator assembly 301 is composed of silicon steel sheets and coils. A rotor assembly 302 is movably installed inside the motor housing 1. The rotor assembly 302 is composed of permanent magnets. When the motor is running, the stator assembly 301 will generate a rotating magnetic field inside the motor housing 1. The rotor assembly 302 will rotate under the action of the rotating magnetic field. An electronic commutator 303 is provided inside the motor housing 1 to control the rotation direction and speed. A position sensor 304 is provided on the inner wall of the motor housing 1 to detect the position of the rotor assembly 302, thereby ensuring that the electronic commutator can accurately control the operation of the motor.

[0025] To quickly dissipate heat from the motor and prevent it from overheating, this embodiment includes a heat dissipation auxiliary mechanism 4. Specifically, the heat dissipation auxiliary mechanism 4 includes a bolt assembly 401 movably mounted on the motor base 2 for connecting to the motor housing 1. The motor housing 1 has mounting screw holes 402 that match the bolt assembly 401. The motor base 2 has several equally spaced air intake holes 403. An air intake impeller 408 is movably mounted on the inner side of the motor base 2. A micro motor 404 for driving the air intake impeller 408 is fixedly mounted on the outer side of the motor base 2. A circular baffle 405 is detachably installed inside the motor base 2. An air supply duct 406 is fixedly installed on the 05. When the intake impeller 408 rotates under the action of the micro motor 404, air will enter the interior of the air supply duct 406. An air inlet hole 407 is opened on the inner side wall of the motor housing 1, and an exhaust hole 409 is opened at the upper end of the motor housing 1. The air supply duct 406 is connected to the air inlet hole 407. After entering the interior of the air supply duct 406, cold air will enter the interior of the air inlet hole 407. A cooling groove is opened inside the side wall of the motor housing 1. The cooling groove is connected to the air inlet hole 407 and the exhaust hole 409 respectively. Cold air will enter the cooling groove from the air inlet hole 407 and be discharged outward from the exhaust hole 409.

[0026] As can be seen from the above, when the brushless motor is powered on, the rotor assembly 302 will form a rotating magnetic field inside the motor housing 1. Subsequently, the stator assembly 301 will rotate rapidly under the action of the rotating magnetic field.

[0027] At the same time, the intake impeller 408 will rotate under the drive of the micro motor 404, so that the external cold air enters the interior of the air delivery duct 406 through the intake port 403. Next, the cold air will enter the cooling tank through the intake port 407 and be discharged from the exhaust port 409, thus forming an air circulation inside the cooling tank.

[0028] Moreover, the thermal grease applied to the inner wall of the motor housing 1 will quickly conduct the heat inside the motor housing 1 to the interior of the cooling tank, and then flow out with the cold air, thereby preventing the motor from being in a high-temperature state due to long-term operation.

[0029] In this embodiment, by setting up a heat dissipation auxiliary mechanism 4, and utilizing the cooperation between the air supply duct 406 and the cooling tank, when the motor is working, the intake impeller 408 will draw external cold air into the interior of the cooling tank to form an air circulation. This can quickly remove the heat inside the motor housing 1 to complete heat dissipation and cooling without causing the outer surface temperature of the motor housing 1 to become too high. Moreover, by setting up a heat dissipation auxiliary mechanism 4, and utilizing the cooperation between the bolt assembly 401 and the mounting screw hole 402, this embodiment allows for quick disassembly between the motor housing 1 and the motor base 2, facilitating the inspection and replacement of internal parts by the operators, making it convenient to use.

[0030] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0031] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined brushless motor, comprising a motor housing (1), wherein a motor base (2) is detachably mounted on the bottom of the motor housing (1), characterized in that: The motor housing (1) is provided with a drive mechanism (3) inside, and the motor base (2) is provided with a heat dissipation auxiliary mechanism (4) for cooling the motor housing (1) inside; The heat dissipation auxiliary mechanism (4) includes a bolt assembly (401) movably mounted on the motor base (2) for connecting the motor housing (1). The motor housing (1) has mounting screw holes (402) that match the bolt assembly (401). The motor base (2) has several air intake holes (403) at equal intervals. An air intake impeller (408) is movably mounted on the inner side of the motor base (2). A micro motor (404) for driving the air intake impeller (408) is fixedly mounted on the outer side of the motor base (2). A circular baffle (405) is detachably mounted inside the motor base (2). An air delivery duct (406) is fixedly mounted on the circular baffle (405).

2. The combined brushless motor according to claim 1, characterized in that: An air inlet hole (407) is provided on the inner side wall of the motor housing (1), and an exhaust hole (409) is provided at the upper end of the motor housing (1). The air supply pipe (406) is connected to the air inlet hole (407).

3. A combined brushless motor according to claim 1, characterized in that: The motor housing (1) has a cooling groove inside its side wall, which is connected to the air inlet hole (407) and the exhaust hole (409) respectively.

4. A combined brushless motor according to claim 1, characterized in that: The inner wall of the motor housing (1) is coated with thermal grease.

5. A combined brushless motor according to claim 1, characterized in that: The drive mechanism (3) includes a stator assembly (301) fixedly installed inside the motor housing (1). The stator assembly (301) is composed of silicon steel sheets and coils. A rotor assembly (302) is movably installed inside the motor housing (1). The rotor assembly (302) is composed of permanent magnets.

6. A combined brushless motor according to claim 5, characterized in that: The motor housing (1) is equipped with an electronic commutator (303) for controlling the rotation direction and speed, and a position sensor (304) for detecting the position of the rotor assembly (302) is provided on the inner side wall of the motor housing (1).

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