Electric tool with insulation and heat conduction structure
By introducing a combination structure of PEEK tubing, thermally conductive filler, and heat sink into power tools, the heat dissipation problem caused by the loose connection between the motor and the aluminum alloy housing is solved, resulting in more efficient heat dissipation and a longer service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-03
AI Technical Summary
In existing power tools, the connection between the motor and the aluminum alloy housing is not tight, which makes it difficult for heat to dissipate effectively, reduces heat dissipation efficiency, increases the risk of motor overheating and damage, and shortens the service life of the device.
The system employs a combination structure of PEEK tubing, thermally conductive filler, and heat sink. Heat is transferred to the connecting ring and thermally conductive filler through the PEEK tubing. The aluminum alloy shell and heat sink increase the heat transfer and heat dissipation area, and the thermally conductive filler fills the gaps in the connecting ring to improve heat dissipation efficiency.
It effectively accelerates the heat dissipation of the electric motor, reduces the probability of overheating damage, and extends the service life of power tools.
Smart Images
Figure CN224083372U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power tool technology, and in particular to a power tool with an insulating and heat-conducting structure. Background Technology
[0002] Power tools are tools that use an electric motor to operate. They are widely used in the medical industry, for example, in orthopedic surgery to drill holes to facilitate the insertion of screws and fixation plates.
[0003] When using existing power tools, a suitable drill bit is selected and installed onto the power tool's connector. The power tool is then started, causing the internal motor to start. The motor's drive shaft drives the connector to rotate, which in turn drives the drill bit to rotate, thus initiating drilling and other work.
[0004] However, in implementing the relevant technology, it was found that existing power tools have the following problems: the motor of existing power tools is only connected to the aluminum alloy shell through a few connection points, which makes it difficult for the heat generated by the motor to be dissipated through the aluminum alloy shell, thereby reducing the heat dissipation efficiency of the device for the motor, which can easily lead to overheating and damage of the motor, thus reducing the service life of the device. In view of this, a power tool with an insulating and heat-conducting structure is provided to overcome the above defects. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an electric tool with an insulating and heat-conducting structure.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an electric tool with an insulating and heat-conducting structure, comprising a tool body, a PEEK sleeve inside the tool body, a plurality of connecting rings on the side of the PEEK sleeve, a heat-conducting filler on the side of the PEEK sleeve, an aluminum alloy shell on the side of the plurality of connecting rings, a plurality of first heat sinks on the side of the aluminum alloy shell, a plurality of second heat sinks on the side of the aluminum alloy shell, a motor body inside the PEEK sleeve, a rotating shaft inside the motor body, a mounting sleeve fixedly mounted at one end of the PEEK sleeve, a fixing plate inside the mounting sleeve, a fixing plate on one side of the fixing plate, and a protective shell on one side of the tool body.
[0007] As a further description of the above technical solution: the tool body has a placement groove inside, and the inside of the placement groove is fixedly connected to the side of the PEEK sleeve, so that the placement groove can facilitate the fixing of the PEEK sleeve.
[0008] As a further description of the above technical solution: each of the connecting rings has a connecting groove inside, and the inside of each of the connecting grooves is fixedly connected to the side of the PEEK sleeve. The connecting grooves facilitate the fixing of the motor body.
[0009] As a further description of the above technical solution: the interior of the aluminum alloy shell is provided with a positioning groove, and the interior of the positioning groove is fixedly connected to the side of a number of connecting rings respectively, so that the positioning groove can facilitate the fixing of the connecting rings.
[0010] As a further description of the above technical solution: the PEEK sleeve has a fixing groove inside, and the inside of the fixing groove is fixedly connected to the side of the motor body, so that the motor body can easily drive the rotating shaft to rotate.
[0011] As a further description of the above technical solution: the mounting sleeve has an installation groove inside, and the inside of the installation groove fits against the side of the fixed plate, so that the mounting sleeve can limit the position of the fixed plate.
[0012] As a further description of the above technical solution: one side of each of the first heat sinks is fixedly connected to the side of the aluminum alloy shell, and one side of each of the second heat sinks is fixedly connected to the side of the aluminum alloy shell. The first heat sinks and the second heat sinks facilitate the acceleration of heat dissipation of the aluminum alloy shell.
[0013] This utility model has the following beneficial effects:
[0014] This utility model discloses an electric tool with an insulating and thermally conductive structure. Through its design, when the motor body generates heat during use, the heat generated by the motor body is transferred through the PEEK sleeve to the connecting ring and the thermally conductive filler. The aluminum alloy connecting ring then transfers the heat generated by the motor body to the interior of the aluminum alloy shell. The first and second heat sinks increase the contact area between the aluminum alloy shell and the air, facilitating faster heat exchange between the aluminum alloy shell and the air. The thermally conductive filler is a DF-6000 two-component thermally conductive filler that fills the gaps between the connecting rings. DF-6000 has good thermal conductivity and can effectively transfer the heat generated by the motor body to the aluminum alloy shell, thereby accelerating the heat dissipation of the motor body. This allows the device to easily fill the gaps between the aluminum alloy shell and the motor body with the thermally conductive filler, and accelerate the heat exchange between the aluminum alloy shell and the air through the first and second heat sinks, thus increasing the heat dissipation efficiency of the motor body, reducing the probability of overheating damage to the motor body, and improving the service life of the device. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2This is an exploded structural diagram of the main body of the tool of this utility model;
[0017] Figure 3 This utility model Figure 1 A schematic diagram of the structure at point A;
[0018] Figure 4 This utility model Figure 2 A schematic diagram of the structure at point B.
[0019] Legend:
[0020] 1. Tool body; 2. PEEK sleeve; 3. Connecting ring; 4. Aluminum alloy shell; 5. First heat sink; 6. Second heat sink; 7. Motor body; 8. Rotating shaft; 9. Mounting sleeve; 10. Fixing plate; 11. Fixing plate; 12. Protective shell; 13. Placement groove; 14. Connecting groove; 15. Positioning groove; 16. Thermally conductive filler. Detailed Implementation
[0021] Reference Figures 1-4 This utility model provides an electric tool with an insulating and heat-conducting structure, comprising a tool body 1, a PEEK sleeve 2 inside the tool body 1 for protecting the motor body 7, several connecting rings 3 on the side of the PEEK sleeve 2 for transferring heat generated by the motor body 7 to the aluminum alloy shell 4, a thermally conductive filler 16 on the side of the PEEK sleeve 2 for filling the gaps between the connecting rings 3 to accelerate the heat dissipation of the motor body 7, an aluminum alloy shell 4 on the side of the connecting rings 3, several first heat sinks 5 and several second heat sinks 6 on the side of the aluminum alloy shell 4, a motor body 7 inside the PEEK sleeve 2, a rotating shaft 8 inside the motor body 7, a mounting sleeve 9 fixedly attached to one end of the PEEK sleeve 2, a fixing plate 10 inside the mounting sleeve 9, a fixing plate 11 on one side of the fixing plate 10, and a protective shell 12 on one side of the tool body 1.
[0022] As a further implementation of the above technical solution: the tool body 1 has a placement groove 13 inside, and the inside of the placement groove 13 is fixedly connected to the side of the PEEK sleeve 2. The placement groove 13 facilitates the fixing of the PEEK sleeve 2.
[0023] As a further implementation of the above technical solution: a plurality of connecting rings 3 are provided with connecting grooves 14 inside, and the interior of the plurality of connecting grooves 14 is fixedly connected to the side of the PEEK sleeve 2. The connecting grooves 14 facilitate the fixing of the motor body 7.
[0024] As a further implementation of the above technical solution: the aluminum alloy shell 4 has a positioning groove 15 inside, and the inside of the positioning groove 15 is fixedly connected to the side of several connecting rings 3 respectively, so that the positioning groove 15 can facilitate the fixing of the connecting rings 3.
[0025] As a further implementation of the above technical solution: a fixing groove is provided inside the PEEK sleeve 2, and the inside of the fixing groove is fixedly connected to the side of the motor body 7, so that the motor body 7 can drive the rotating shaft 8 to rotate.
[0026] As a further implementation of the above technical solution: the mounting sleeve 9 has an installation groove inside, and the inside of the installation groove fits against the side of the fixing plate 10, so that the mounting sleeve 9 can limit the fixing plate 10.
[0027] As a further implementation of the above technical solution: one side of each of the first heat sinks 5 is fixedly connected to the side of the aluminum alloy shell 4, and one side of each of the second heat sinks 6 is fixedly connected to the side of the aluminum alloy shell 4. The first heat sinks 5 and the second heat sinks 6 facilitate the acceleration of heat dissipation of the aluminum alloy shell 4.
[0028] Working principle:
[0029] When using this invention, when the device is needed, select a suitable drill bit and connect it to the internal connector of the protective shell 12. Start the motor body 7 by starting the tool body 1. The motor body 7 includes a motor and a matching gear set. The motor body 7 drives the transmission shaft to rotate, thereby driving the internal connector of the protective shell 12 to rotate, and then driving the drill bit to rotate. When the motor body 7 generates heat during use, the heat generated by the motor body 7 is transferred to the connecting ring 3 and the thermally conductive filler 16 through the PEEK sleeve 2. The heat generated by the motor body 7 is transferred to the interior of the aluminum alloy shell 4 through the aluminum alloy connecting ring 3. The first heat sink 5 and the second heat sink 6 increase the contact area between the aluminum alloy shell 4 and the air, which facilitates faster heat exchange between the aluminum alloy shell 4 and the air. The thermally conductive filler 16 is DF- The DF-6000 two-component thermally conductive filler 16 can fill the gaps between the connecting rings 3. DF-6000 has good thermal conductivity and can effectively conduct heat from the heat source to the radiator or other heat dissipation components. After curing, this filler has good electrical insulation properties and will not affect the normal operation of electronic equipment. It increases the contact area between the aluminum alloy shell 4 and the PEEK sleeve 2, thereby accelerating the heat dissipation speed of the motor body 7. This makes it easy for the device to fill the gaps between the aluminum alloy shell 4 and the motor body 7 with the thermally conductive filler 16, and accelerate the heat exchange rate between the aluminum alloy shell 4 and the air through the first heat sink 5 and the second heat sink 6, thereby accelerating the heat dissipation efficiency of the motor body 7, reducing the probability of overheating damage to the motor body 7, and thus improving the service life of the device.
[0030] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A power tool having an insulating and heat conducting structure, comprising a tool body (1), characterized in that: The inside of the tool body (1) is provided with a PEEK sleeve (2), the side of the PEEK sleeve (2) is provided with a plurality of connecting rings (3), the side of the PEEK sleeve (2) is provided with a heat-conducting filler (16), the side of the plurality of connecting rings (3) is provided with an aluminum alloy shell (4), the side of the aluminum alloy shell (4) is provided with a plurality of first radiating fins (5), the side of the aluminum alloy shell (4) is provided with a plurality of second radiating fins (6), the inside of the PEEK sleeve (2) is provided with a motor body (7), the inside of the motor body (7) is provided with a rotating shaft (8), one end of the PEEK sleeve (2) is fixedly provided with a mounting sleeve (9), the inside of the mounting sleeve (9) is provided with a fixed disc (10), one side of the fixed disc (10) is provided with a fixed plate (11), one side of the tool body (1) is provided with a protective shell (12).
2. The electric power tool having an insulating and heat conducting structure according to claim 1, characterized in that: The inside of the tool body (1) is provided with a placing groove (13), and the inside of the placing groove (13) is fixedly connected with the side of the PEEK sleeve (2).
3. The electric power tool having an insulating and heat conducting structure according to claim 1, characterized in that: The inside of the plurality of connecting rings (3) is provided with a connecting groove (14), and the inside of the plurality of connecting grooves (14) is fixedly connected with the side of the PEEK sleeve (2).
4. The electric power tool having an insulating and heat conducting structure according to claim 1, characterized in that: The inside of the aluminum alloy shell (4) is provided with a positioning groove (15), and the inside of the positioning groove (15) is fixedly connected with the side of the plurality of connecting rings (3).
5. The electric power tool having an insulating and heat conducting structure according to claim 1, characterized in that: The inside of the PEEK sleeve (2) is provided with a fixed groove, and the inside of the fixed groove is fixedly connected with the side of the motor body (7).
6. The electric power tool having an insulating and heat conducting structure according to claim 1, characterized in that: The inside of the mounting sleeve (9) is provided with a mounting groove, and the inside of the mounting groove is in close contact with the side of the fixed disc (10).
7. The electric power tool having an insulating and heat conducting structure according to claim 1, characterized in that: The side of the plurality of first radiating fins (5) is fixedly connected with the side of the aluminum alloy shell (4), and the side of the plurality of second radiating fins (6) is fixedly connected with the side of the aluminum alloy shell (4).