High-efficiency and high-power motor for electric tool
By using copper metal shells and copper metal sheets in motors for power tools, combined with the cooling system of hovering heat exchange tubes and circulation tubes, the high temperature problem caused by the lack of heat dissipation ability of the motor is solved, and more efficient motor operation and longer service life are achieved.
Patent Information
- Application Number
- CN202421804387.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-29
AI Technical Summary
Existing motors for power tools lack heat dissipation capabilities and are prone to reduced equipment efficiency due to high temperatures.
A high-efficiency and high-power electric tool motor is designed, using a copper metal shell and a copper metal sheet, and a cooling system of a hovering heat exchange tube and a circulation tube, continuously taking away the heat generated by the motor through the cooling water circulation.
It effectively reduces the working temperature of the motor, reduces the increase in resistance, improves the efficiency and continuous working ability of the motor, and improves the power output of the motor.
Smart Images

Figure CN222940659U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power tools, in particular to a motor for a high-efficiency and high-power power tool. Background Technique
[0002] As an indispensable tool in modern industry and daily life, power tools are widely used in various fields such as manufacturing, construction, and maintenance. Due to the limitations of power and efficiency, traditional power tools are difficult to meet the requirements of high-intensity and high-precision work. With the development of technology, high-efficiency and high-power power tools have gradually become the mainstream of the market. Such tools can not only provide stronger power and higher efficiency, but also have a longer service life and higher safety.
[0003] A high-power motor is the core of a high-efficiency power tool, and its performance directly affects the working efficiency and quality of the tool. Traditional motors are prone to overheating problems under high loads, resulting in a decrease in power output and even possible damage to the motor. To solve this problem, modern high-power motors focus on optimizing the heat dissipation system in design, and improve the continuous working ability and overall efficiency of the motor through efficient heat dissipation. However, the existing motors for power tools still lack heat dissipation ability and are prone to problems such as reduced efficiency of the equipment due to high temperature.
[0004] Therefore, it is very necessary to invent a motor for a high-efficiency and high-power power tool. Content of the Utility Model
[0005] To solve the above technical problems, the utility model provides a motor for a high-efficiency and high-power power tool to solve the problem that the existing motors for power tools still lack heat dissipation ability and are prone to problems such as reduced efficiency of the equipment due to high temperature. A motor for a high-efficiency and high-power power tool includes an equipment motor, a housing support frame, a coupling, a transmission shaft, a gearbox, and a drill chuck, wherein: the housing support frame is fixedly installed on the outside of the equipment motor, and the equipment motor is fixedly installed inside the housing of the equipment through the housing support frame. The coupling is fixedly installed on the output end of the equipment motor; the transmission shaft is fixedly installed at one end of the coupling and is engaged inside the gearbox through a toothed shaft; the drill chuck is engaged at one end of the gearbox through a toothed shaft.
[0006] The equipment motor includes a motor main body, a support housing, heat dissipation copper sheets, heat exchange tubes, and a circulation tube. The rear end of the support housing is fixedly installed on the outside of the motor main body and is fixedly installed inside the housing of the equipment through the housing support frame; the heat dissipation copper sheets are fixedly installed on the outside of the front end of the motor main body, and the heat exchange tubes are coiled inside the heat dissipation copper sheets. The circulation tube is fixedly installed at both ends of the heat exchange tube and extends backward through the housing of the equipment.
[0007] The support housing inside the device motor is made of a copper metal shell, and the heat dissipation copper sheet is composed of several groups of copper metal sheets and is located in the area where the motor generates the most heat. There are holes for installing heat exchange pipes inside the heat dissipation copper sheet; the heat exchange pipe is a coiled pipe and is located in the holes inside the heat dissipation copper sheet and on the surface of the support housing; the heat exchange pipe forms a continuous pipe through the circulation pipe, and a set of water pumps is installed inside the circulation pipe and placed in the cooling water, with the following functions: ① Preventing resistance increase: The motor generates heat during operation, and the increase in temperature will cause the resistance of the wires inside the motor to increase, thereby reducing the efficiency of the motor. An effective heat dissipation design can reduce the working temperature of the motor, reduce the increase in resistance, and thus improve the efficiency of the motor; ② Improving the continuous working ability of the motor: The heat dissipation design can keep the motor at a stable temperature during long-term high-load operation, avoiding shutdown or performance degradation caused by overheating. The continuous cooling water circulation system can ensure that the motor operates stably under various working conditions, thereby improving the continuous working ability and efficiency of the motor; ③ Improving the power output of the motor: The design of the heat dissipation copper sheet and the heat exchange pipe can quickly conduct heat to the outside of the motor and take away the heat through the circulation pipe, ensuring that the temperature inside the motor remains at a relatively low level. In a low-temperature environment, the motor can safely provide a higher power output, thereby improving the overall efficiency.
[0008] The gearbox adopts a set of reduction gearboxes, and the gear shaft inside the gearbox drives the device motor and the drill chuck. The gearbox is fixedly installed inside the housing of the device through its outer shell; the gearbox can enable the drill chuck to obtain the power of the device motor and generate a specific rotational speed, with the following functions: ① Decelerating and increasing torque: The gearbox converts the high-speed rotation of the device motor into a lower-speed rotation through a set of reduction gear sets, thereby increasing the output torque. This can enable the power tool to provide sufficient power during operations that require high torque, such as drilling and cutting; ② Adjusting the output rotational speed: The gearbox can adjust the rotational speed of the drill chuck at the output end according to different gear configurations to meet different working requirements. Different machining operations have different requirements for rotational speed, and through the adjustment of the gearbox, different rotational speed outputs can be achieved; ③ Improving the overall performance of the power tool: Through reasonable gear design, the gearbox can optimize the performance of the motor, enabling the power tool to operate stably under various working conditions. Whether it is light-load work at high rotational speed or heavy-load work at low rotational speed, the gearbox can provide the best power output.
[0009] Compared with the prior art, the utility model has the following beneficial effects:
[0010] 1. The setting of the motor of the equipment of the present utility model has the following functions: ① Preventing resistance increase: The motor generates heat during operation. The increase in temperature will cause the resistance of the wires inside the motor to increase, thereby reducing the efficiency of the motor. An effective heat dissipation design can reduce the operating temperature of the motor, reduce the increase in resistance, and thus improve the efficiency of the motor; ② Improving the continuous working ability of the motor: The heat dissipation design can keep the temperature of the motor stable during long-term high-load operation, avoiding shutdown or performance degradation caused by overheating. The continuous cooling water circulation system can ensure that the motor can operate stably under various working conditions, thereby improving the continuous working ability and efficiency of the motor; ③ Improving the power output of the motor: The design of the heat dissipation copper sheet and the heat exchange tube can quickly conduct heat to the outside of the motor and take away the heat through circulation, ensuring that the temperature inside the motor remains at a relatively low level. In a low-temperature environment, the motor can safely provide a higher power output, thereby improving the overall efficiency.
[0011] 2. The setting of the gearbox of the present utility model has the following functions: ① Decelerating and increasing torque: The gearbox converts the high-speed rotation of the equipment motor into a lower-speed rotation through a set of reduction gear sets, thereby increasing the output torque. This can enable the power tool to provide sufficient power during operations that require high torque, such as drilling and cutting; ② Adjusting the output speed: The gearbox can adjust the speed of the drill chuck at the output end according to different gear configurations to meet different working requirements. Different machining operations have different requirements for speed. Through the adjustment of the gearbox, different speed outputs can be achieved; ③ Improving the overall performance of the power tool: Through reasonable gear design, the gearbox can optimize the performance of the motor, enabling the power tool to operate stably under various working conditions. Whether it is a high-speed light-load operation or a low-speed heavy-load operation, the gearbox can provide the best power output. Description of the Drawings
[0012] Figure 1 is the structural schematic diagram of the present utility model.
[0013] Figure 2 is the enlarged view of part A of the present utility model.
[0014] In the figure:
[0015] Equipment motor 1, motor main body 11, support housing 12, heat dissipation copper sheet 13, heat exchange tube 14, circulation tube 15, housing support frame 2, coupling 3, transmission shaft 4, gearbox 5, drill chuck 6. Detailed Embodiment
[0016] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0017] As shown in the attached Figure 1 to the attached Figure 2 figures.
[0018] A motor for a high-efficiency and high-power electric tool provided by the present utility model includes a device motor 1, a housing support frame 2, a coupling 3, a transmission shaft 4, a gearbox 5 and a drill chuck 6, wherein: the housing support frame 2 is fixedly installed on the outside of the device motor 1, and the device motor 1 is fixedly installed inside the housing of the device through the housing support frame 2, and the coupling 3 is fixedly installed on the output end of the device motor 1; the transmission shaft 4 is fixedly installed at one end of the coupling 3 and is engaged inside the gearbox 5 through a gear shaft; the drill chuck 6 is engaged at one end of the gearbox 5 through a gear shaft.
[0019] The device motor 1 includes a motor main body 11, a support housing 12, heat dissipation copper sheets 13, heat exchange tubes 14 and a circulation tube 15, and the rear end of the support housing 12 is fixedly installed on the outside of the motor main body 11 and is fixedly installed inside the housing of the device through the housing support frame 2; the heat dissipation copper sheets 13 are fixedly installed on the outside of the front end of the motor main body 11, and the heat exchange tubes 14 are wound inside the heat dissipation copper sheets 13, and the circulation tube 15 is fixedly installed at both ends of the heat exchange tubes 14 and extends backward through the housing of the device.
[0020] Working principle of the motor for a high-efficiency and high-power electric tool
[0021] 1. Device motor 1
[0022] The device motor 1 is the core component of the entire electric tool. It is mainly responsible for converting electrical energy into mechanical energy to provide power for the tool. Its internal structure includes a motor main body 11, a support housing 12, heat dissipation copper sheets 13, heat exchange tubes 14 and a circulation tube 15.
[0023] The motor main body 11 is the core part of the electrical energy conversion, generating rotational motion through the principle of electromagnetic induction.
[0024] The support housing 12 provides mechanical support for the motor and assists in heat dissipation.
[0025] The heat dissipation copper sheets 13 and the heat exchange tubes 14 work together to take away the heat generated by the motor through the circulation of cooling water, ensuring that the motor can still operate efficiently under high loads.
[0026] 2. Housing support bracket 2
[0027] The housing support bracket 2 is fixedly installed on the outside of the equipment motor 1, stably mounting the motor inside the equipment housing to ensure that the motor will not displace or vibrate during operation, guaranteeing the stability and reliability of the entire system.
[0028] 3. Coupling 3 and transmission shaft 4
[0029] The coupling 3 is fixedly installed on the output end of the equipment motor 1, transmitting the rotational power of the motor to the transmission shaft 4. One end of the transmission shaft 4 is connected to the motor through the coupling 3, and the other end meshes with the inside of the gearbox 5 through a gear shaft.
[0030] 4. Gearbox 5
[0031] The gearbox 5 is a speed reduction device that contains a set of reduction gears inside. It reduces the high-speed rotational power from the transmission shaft 4 and transmits the reduced power to the drill chuck 6. The reduction gears not only reduce the speed but also increase the output torque, enabling the power tool to have sufficient power when performing heavy-duty work.
[0032] 5. Drill chuck 6
[0033] The drill chuck 6 meshes with one end of the gearbox 5 through a gear shaft and is the working end of the power tool. After receiving the power transmitted by the gearbox, the drill chuck performs a rotational motion to complete operations such as drilling and cutting.
[0034] Working principle of the cooling system
[0035] The cooling system consists of a cooling copper sheet 13, a heat exchange tube 14, and a circulation tube 15 to ensure that the motor will not overheat during high-load operation.
[0036] Cooling copper sheet 13: Installed at the front end of the motor body 11 to accelerate heat dissipation by increasing the surface area.
[0037] Heat exchange tube 14: Coiled inside the cooling copper sheet to carry away heat through the flow of cooling water. The cooling water inside the heat exchange tube continuously flows, taking the heat from the inside of the motor to the outside.
[0038] Circulation tube 15: Connects the two ends of the heat exchange tube and extends backward through the equipment housing. The water pump inside pushes the cooling water to circulate, continuously carrying away the heat generated by the motor to ensure that the motor temperature is always within a controllable range.
[0039] Summary
[0040] The motor for high-efficiency and high-power electric tools generates rotational power through the motor body, and transmits the power to the gearbox through the coupling and the transmission shaft. After being decelerated by the gearbox, the power finally drives the drill chuck to work. At the same time, through the coordinated action of the heat dissipation copper sheet, the heat exchange tube and the circulation tube, the heat dissipation system ensures that the motor maintains an appropriate temperature during efficient operation, improving the overall efficiency and service life of the motor.
[0041] Any technical solution using the technical solution described in the present utility model, or any technical solution designed by those skilled in the art inspired by the technical solution of the present utility model and achieving the above technical effects, shall fall within the protection scope of the present utility model.
Claims
1. A motor for high-efficiency and high-power electric tools, characterized in that: The invention comprises a device motor (1), a housing support frame (2), a coupling (3), a transmission shaft (4), a gear box (5) and a drill chuck (6), wherein: the housing support frame (2) is fixedly mounted on the outside of the device motor (1), and the device motor (1) is fixedly mounted inside the housing of the device through the housing support frame (2); the coupling (3) is fixedly mounted on the output end of the device motor (1); the transmission shaft (4) is fixedly mounted on one end of the coupling (3) and meshed with the inside of the gear box (5) through a gear shaft; and the drill chuck (6) is meshed with one end of the gear box (5) through a gear shaft.
2. The high-efficiency and high-power electric tool motor according to claim 1, characterized in that: The device motor (1) comprises a motor body (11), a support shell (12), a heat dissipation copper sheet (13), a heat exchange tube (14) and a circulation tube (15), wherein the rear end of the support shell (12) is fixedly mounted on the outside of the motor body (11) and is fixedly mounted inside the shell of the device through a shell support frame (2); the heat dissipation copper sheet (13) is fixedly mounted on the outside of the front end of the motor body (11), and the heat exchange tube (14) is coiled inside the heat dissipation copper sheet (13); the circulation tube (15) is fixedly mounted on both ends of the heat exchange tube (14), and passes through the shell of the device and extends backward.
3. The high-efficiency and high-power electric tool motor according to claim 2, characterized in that: The supporting shell (12) inside the motor (1) of the device is made of a copper metal shell, and the heat dissipation copper sheet (13) is made of a plurality of groups of copper metal sheets and is located in the area where the motor generates the most heat. The heat dissipation copper sheet (13) is provided with a hole for installing a heat exchange tube (14). The heat exchange tube (14) is made of a spiral pipe and is located in the hole inside the heat dissipation copper sheet (13) and on the surface of the supporting shell (12). The heat exchange tube (14) is connected to the end of the circulating tube (15) to form a through pipe, and a group of water pumps are provided inside the circulating tube (15) and placed inside the cooling water.
4. The high-efficiency and high-power electric tool motor according to claim 1, characterized in that: The gear box (5) adopts a group of reduction gear boxes, and the gear shaft inside the gear box (5) transmits the device motor (1) and the drill chuck (6). The gear box (5) is fixedly installed inside the housing of the device through its outer shell; the gear box (5) can enable the drill chuck (6) to obtain the power of the device motor (1) and generate a specific rotation speed.