Hand-held electric tool motor water cooling structure

Abstract

The utility model discloses a handheld electric tool motor water cooling structure, which is arranged in a shell of an electric tool and comprises an outer cooling shell, a water inlet, a water outlet and a water pump, the outer cooling shell is arranged along the periphery of a motor and is provided with a cold water channel, the water inlet and the water outlet are arranged on the shell, and the water pump is arranged on the outer cooling shell. The water inlet is communicated with one end of the cold water channel, the water pump is arranged in the shell, the water inlet end of the water pump is communicated with the other end of the cold water channel, and the water outlet end of the water pump is communicated with the water outlet. According to the utility model, the shell forming the cold water channel is arranged at the periphery of the motor, cooling water is discharged from the water inlet, the cold water channel and the water outlet in sequence through the water pump, and when the cooling water passes through the cold water channel, heat exchange can be carried out on heat generated by the motor, so that the cooling and heat dissipation effects on the motor can be realized, and the temperature of the motor is reduced; the service life of the motor is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of motors, and in particular to a water-cooling structure for a handheld power tool motor. Background Technology

[0002] In the existing field of motor application technology, most traditionally designed motor tools on the market adopt a waterless housing structure.

[0003] This design has a significant flaw during normal motor operation: due to the lack of an effective heat dissipation mechanism, the large amount of heat generated during motor operation cannot be dissipated in time, causing the motor temperature to rise continuously. Excessive temperature not only accelerates the aging and damage of internal motor components, significantly shortening the overall lifespan of the device, but also causes the motor casing to become noticeably hot to the touch during prolonged use, severely impacting the user experience. Therefore, effectively solving the heat dissipation problem during motor operation, reducing motor temperature, extending motor life, and improving user experience have become critical issues that urgently need to be addressed in the current motor technology field. Utility Model Content

[0004] In view of the above-mentioned problems of existing motors, the aim is to provide a water-cooled structure for handheld power tool motors.

[0005] The specific technical solution is as follows:

[0006] A water-cooled structure for the motor of a handheld power tool, disposed within the housing of the power tool, includes:

[0007] An outer cooling shell is provided along the periphery of the motor and has a cold water channel thereon;

[0008] The water inlet and the water outlet are located on the housing, and the water inlet is connected to one end of the cold water channel.

[0009] A water pump is located inside the housing. The water pump's inlet is connected to the other end of the cold water channel, and its outlet is connected to the water outlet.

[0010] As a further improvement and optimization of this solution, the outer cooling shell is made of plastic.

[0011] As a further improvement and optimization of this solution, the water inlet is connected to one end of the cold water channel through a first pipeline.

[0012] As a further improvement and optimization of this solution, the other end of the cold water channel is connected to the water inlet of the water pump through a second pipeline.

[0013] As a further improvement and optimization of this solution, the water outlet of the water pump is connected to the water outlet through a third pipeline.

[0014] As a further improvement and optimization of this solution, the motor is a DC motor.

[0015] As a further improvement and optimization of this solution, the outer cooling shell is fixed with bolts.

[0016] As a further improvement and optimization of this solution, the water inlet is located on one side of the bottom of the housing.

[0017] As a further improvement and optimization of this solution, the water outlet is located on the top side of the shell.

[0018] As a further improvement and optimization of this solution, the water pump is located between the motor and the water outlet.

[0019] The positive effects of the above technical solution compared with the existing technology are:

[0020] This invention features a housing that forms a cold water channel around the motor. A water pump sequentially discharges cooling water through the inlet, the cold water channel, and the outlet. As the cooling water passes through the cold water channel, it exchanges heat with the motor, thereby achieving a cooling effect, reducing the motor temperature, and extending the motor's lifespan. Attached Figure Description

[0021] Figure 1 This is a structural diagram of an existing electric tool.

[0022] Figure 2 This is a schematic diagram of the water-cooling structure of a handheld power tool motor according to the present invention;

[0023] Figure 3 This is a cross-sectional view of a water-cooled structure for a handheld power tool motor according to the present invention.

[0024] In the attached diagram: 1. Shell; 2. Outer cooling shell; 3. Motor; 4. Water pump; 5. Water outlet; 6. Water inlet; 7. First pipeline; 8. Second pipeline; 9. Third pipeline; 21. Cold water passage. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Figure 1 This is a schematic diagram of the structure of a conventional electric tool. Figure 2 This is a schematic diagram of the water-cooling structure for a handheld power tool motor according to the present invention. Figure 3 This is a cross-sectional view of a water-cooled structure for a handheld power tool motor according to this utility model. Figure 1-3 As shown, a preferred embodiment of a water-cooled structure for a handheld power tool motor 3 is illustrated. The structure is located inside the housing 1 of the power tool and includes: an outer cooling shell 2, a water inlet 6, a water outlet 5, and a water pump 4. The outer cooling shell 2 is arranged along the periphery of the motor 3 and has a cold water channel 21. The water inlet 6 and the water outlet 5 are located on the housing 1, and the water inlet 6 is connected to one end of the cold water channel 21. The water pump 4 is located inside the housing 1, and the water inlet of the water pump 4 is connected to the other end of the cold water channel 21, and the water outlet is connected to the water outlet 5.

[0029] In this embodiment, a housing 1 forming a cold water channel 21 is provided around the motor 3. Cooling water is discharged sequentially from the inlet 6, the cold water channel 21 and the outlet 5 by the water pump 4. When the cooling water passes through the cold water channel 21, it can exchange heat with the heat generated by the motor 3, thereby achieving the cooling and heat dissipation effect of the motor 3, reducing the temperature of the motor 3 and extending the life of the motor 3.

[0030] Furthermore, as a preferred embodiment, the outer cooling shell 2 is made of plastic, which reduces costs while utilizing the excellent thermal conductivity of plastic to improve the energy exchange between the cooling water and the temperature generated by the motor 3, thereby further improving the cooling and heat dissipation effect of the motor 3.

[0031] Furthermore, as a preferred embodiment, the water inlet 6 is connected to one end of the cold water channel 21 via the first pipe 7.

[0032] Furthermore, as a preferred embodiment, the other end of the cold water channel 21 is connected to the water inlet of the water pump 4 via a second pipe 8.

[0033] Furthermore, as a preferred embodiment, the outlet end of the water pump 4 is connected to the outlet 5 via a third pipe 9.

[0034] Furthermore, as a preferred embodiment, motor 3 is a DC motor 3.

[0035] Furthermore, as a preferred embodiment, the outer cold shell 2 is fixed with bolts for easy disassembly and assembly.

[0036] Furthermore, as a preferred embodiment, the water inlet 6 is located on one side of the bottom of the housing 1.

[0037] Furthermore, as a preferred embodiment, the water outlet 5 is located on the top side of the housing 1.

[0038] Furthermore, as a preferred embodiment, the water pump 4 is located between the motor 3 and the outlet 5.

[0039] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water-cooled structure for the motor of a handheld power tool, disposed within the housing of the power tool, characterized in that, include: An outer cooling shell is provided along the periphery of the motor and has a cold water channel thereon; The water inlet and the water outlet are located on the housing, and the water inlet is connected to one end of the cold water channel. A water pump is located inside the housing. The water pump's inlet is connected to the other end of the cold water channel, and its outlet is connected to the water outlet.

2. The water-cooled structure for the motor of the handheld power tool according to claim 1, characterized in that, The outer cooling shell is made of plastic.

3. The water-cooled structure for the motor of the handheld power tool according to claim 1, characterized in that, The water inlet is connected to one end of the cold water channel via a first pipeline.

4. The water-cooled structure for the motor of the handheld power tool according to claim 1, characterized in that, The other end of the cold water channel is connected to the water inlet of the water pump via a second pipeline.

5. The water-cooled structure for the motor of the handheld power tool according to claim 1, characterized in that, The outlet of the water pump is connected to the outlet via a third pipeline.

6. The water-cooled structure for the motor of the handheld power tool according to claim 1, characterized in that, The motor is a DC motor.

7. The water-cooled structure for the motor of the handheld power tool according to claim 1, characterized in that, The outer cooling shell is fixed with bolts.

8. The water-cooled structure for the motor of the handheld power tool according to claim 1, characterized in that, The water inlet is located on one side of the bottom of the shell.

9. The water-cooled structure for the motor of a handheld power tool according to claim 1, characterized in that, The water outlet is located on one side of the top of the shell.

10. The water-cooled structure for the motor of a handheld power tool according to claim 9, characterized in that, The water pump is located between the motor and the water outlet.

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