A dustproof and heat-dissipation machine head shell device for electric screwdrivers

By combining a heat-conducting cylinder and heat dissipation fins with a fan, the problem of insufficient heat dissipation in electric screwdrivers is solved, achieving effective heat dissipation and dust prevention, and extending the equipment's lifespan.

CN224347756UActive Publication Date: 2026-06-12NINGBO HAIYAN WEIYE METAL PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO HAIYAN WEIYE METAL PROD CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Traditional electric screwdrivers suffer from insufficient heat dissipation when used at high power, leading to motor overheating and affecting equipment performance and lifespan.

Method used

It adopts a collaborative design of heat conduction cylinder, heat dissipation fins and fan. Heat is conducted to the heat dissipation fins through heat conduction cylinder, the fan rotation accelerates air flow to promote heat exchange, and dust cover and dust filter prevent dust from entering.

🎯Benefits of technology

It achieves efficient heat dissipation, reduces the temperature of the machine head, prevents the equipment from overheating, protects internal components from dust contamination, and extends the equipment's lifespan.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224347756U_ABST
    Figure CN224347756U_ABST
Patent Text Reader

Abstract

This utility model specifically relates to the field of screwdriver head housing devices, and more particularly to a dustproof and heat-dissipating screwdriver head housing device for electric screwdrivers. This utility model provides a dustproof and heat-dissipating screwdriver head housing device for electric screwdrivers, including an electric screwdriver body, a dust cover, a heat-conducting cylinder, heat dissipation fins, and a fan. The dust cover is installed on the left side of the electric screwdriver body, and the heat-conducting cylinder is located on the left side of the electric screwdriver body. Four heat dissipation fins are arranged circumferentially on the outer side of the heat-conducting cylinder. A fan is symmetrically installed front and back inside the dust cover. The design of the heat-conducting cylinder, heat dissipation fins, and fan achieves efficient heat dissipation. The heat-conducting cylinder quickly transfers heat from the screwdriver head to the heat dissipation fins, the heat dissipation fins increase the heat dissipation area, and the fan rotation accelerates airflow, promoting heat exchange and effectively reducing the screwdriver head temperature, preventing performance degradation and component damage due to overheating.
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Description

Technical Field

[0001] This utility model specifically relates to the field of machine head housing devices, and more particularly to a dustproof and heat dissipation machine head housing device for electric screwdrivers. Background Technology

[0002] Electric screwdrivers are common power tools widely used in homes, industrial production, and repair work for quickly tightening or loosening screws. With the continuous development of power tool technology, the power, efficiency, and convenience of electric screwdrivers have significantly improved. However, traditional electric screwdrivers still have some technical problems during use, particularly inadequate dust protection and heat dissipation, which directly affect the performance and lifespan of the device.

[0003] In traditional electric screwdrivers, the high-power motor and frequent use easily generate a lot of heat in the head area. If the heat dissipation design is inadequate, the electric screwdriver may overheat after prolonged use, affecting the normal operation and lifespan of the device. Most existing electric screwdriver head designs use simple heat dissipation holes or heat sink structures, but these designs still have the problem of insufficient heat dissipation under high-intensity use, making it difficult to effectively control the motor temperature.

[0004] Therefore, there is an urgent need to design a dustproof and heat-dissipating head housing device for electric screwdrivers. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a dustproof and heat-dissipating head shell device for electric screwdrivers.

[0006] A dustproof and heat-dissipating head housing device for an electric screwdriver includes an electric screwdriver body, a dust cover, a heat-conducting cylinder, heat dissipation fins, and a fan. The dust cover is installed on the left side of the electric screwdriver body, and the heat-conducting cylinder is located on the left side of the electric screwdriver body. Four heat dissipation fins are arranged circumferentially on the outer side of the heat-conducting cylinder. Rectangular ventilation openings are provided on both the front and rear sides of the dust cover, and fans are symmetrically installed inside the dust cover.

[0007] Furthermore, it also includes a dustproof net, and the left side of the dustproof cover has evenly spaced heat dissipation vents, each of which is equipped with a dustproof net.

[0008] Furthermore, it also includes protrusions. The inner right side of the dust cover has symmetrical protrusions above and below. The outer left side of the electric screwdriver body has a sliding groove, and the protrusions on the dust cover slide in conjunction with the sliding groove.

[0009] Furthermore, it also includes a rubber gasket; a rubber gasket is provided on the outer left side of the electric screwdriver body.

[0010] Furthermore, filters are installed at all rectangular vents.

[0011] Furthermore, the heat-conducting cylinder is designed with a metal material.

[0012] The beneficial effects and significant advancements of this utility model are as follows:

[0013] This invention achieves efficient heat dissipation through the coordinated design of a heat-conducting cylinder, heat dissipation fins, and a fan. The heat-conducting cylinder can quickly conduct the heat generated by the electric screwdriver head to the heat dissipation fins, which in turn significantly increases the heat dissipation area. Furthermore, the airflow generated by the fan's rotation accelerates airflow, promoting heat exchange between the heat dissipation fins and the air, effectively reducing the head temperature and preventing problems such as equipment performance degradation and component damage caused by overheating. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the heat-conducting cylinder, heat dissipation fins, and fan of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the dust cover, filter, and protrusion of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the electric screwdriver body, the sliding groove, and the rubber gasket of this utility model. The component names and numbers in the diagram are: 1_electric screwdriver body, 2_dust cover, 3_heat conduction cylinder, 4_heat dissipation fins, 5_fan, 6_dust filter, 7_filter, 8_protrusion, 9_sliding groove, 10_rubber gasket. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings.

[0019] Example: A dustproof and heat-dissipating head housing device for an electric screwdriver, referenced. Figures 1 to 4As shown, the device includes an electric screwdriver body 1, a dust cover 2, a heat-conducting cylinder 3, heat dissipation fins 4, a fan 5, a dust filter 6, a filter 7, a protrusion 8, a groove 9, and a rubber gasket 10. The electric screwdriver body 1, as the core component of the entire device, provides the basic functions of an electric screwdriver, such as rotation and torque output, for tightening or loosening screws. The dust cover 2 is installed on the left side of the electric screwdriver body 1. As the main part of the head housing, the dust cover 2 wraps around the left side of the electric screwdriver body 1, protecting the head and internal components. A heat-conducting cylinder 3, made of metal, is connected to the left side of the electric screwdriver body 1. The heat-conducting cylinder 3 is located inside the dust cover 2. Four heat dissipation fins 4 are connected circumferentially to the outer side of the heat-conducting cylinder 3. The heat dissipation fins 4 increase the heat dissipation area and improve heat dissipation efficiency. The heat-conducting cylinder 3 is used to conduct the heat generated by the electric screwdriver head. The metal material has good thermal conductivity, enabling rapid heat transfer from the head to the heat dissipation fins 4. The front of the dust cover 2... Rectangular ventilation openings are provided on the rear side, and filters 7 are connected to each rectangular ventilation opening. Fans 5 are symmetrically installed at the front and back inside the dust cover 2. The rotation of the fans 5 generates airflow, which accelerates airflow and promotes heat exchange between the heat dissipation fins 4 and the air, thereby improving the heat dissipation effect. Heat dissipation vents are evenly spaced on the left side of the dust cover 2, and dust filters 6 are connected to each heat dissipation vent. The dust filters 6 can prevent dust from entering the interior of the dust cover 2. Protrusions 8 are symmetrically connected above and below on the inner right side of the dust cover 2. A sliding groove 9 is provided on the outer left side of the electric screwdriver body 1. The protrusions 8 on the dust cover 2 slide in conjunction with the sliding groove 9. The sliding contact between the protrusions 8 and the sliding groove 9 on the electric screwdriver body 1 enables convenient installation and removal of the dust cover 2. A rubber gasket 10 is connected to the outer left side of the electric screwdriver body 1. The rubber gasket 10 plays a buffering and sealing role when the dust cover 2 is installed, reducing vibration and noise, and preventing dust from entering from the gap between the dust cover 2 and the electric screwdriver body 1.

[0020] When the dustproof and heat dissipation head housing device is required, first carefully place the rubber gasket 10 on the appropriate position on the left outer side of the electric screwdriver body 1, ensuring that the rubber gasket 10 is installed flat without any skewing or wrinkles, so as to play its buffering and sealing role.

[0021] Connect the heat-conducting cylinder 3 accurately to the left side of the electric screwdriver body 1, ensuring it fits snugly against the screwdriver head to facilitate heat transfer. Holding the dust cover 2, align the symmetrical protrusions 8 on the right side of the dust cover 2 with the groove 9 on the outer left side of the electric screwdriver body 1. Slowly and steadily push the dust cover 2 into place along the groove 9 until the protrusions 8 are fully inserted and the dust cover 2 is properly installed. During installation, avoid excessive force to prevent damage to the components.

[0022] After installation, gently shake the dust cover 2 to check if it is securely installed and if there is any looseness. At the same time, confirm that the rubber gasket 10 is providing a good seal to prevent dust from entering through the gap between the dust cover 2 and the electric screwdriver body 1.

[0023] Connect the power supply to the electric screwdriver and press the start button to start the electric screwdriver body 1 to tighten or loosen screws. When the electric screwdriver head starts to heat up, the fan 5 can be turned on. The fan 5 rotates to generate airflow, which accelerates the airflow and promotes the heat exchange between the heat dissipation fins 4 and the air. The heat conduction cylinder 3 quickly conducts the heat generated by the electric screwdriver head to the heat dissipation fins 4. The heat dissipation fins 4 increase the heat dissipation area and improve the heat dissipation efficiency, dissipating the heat to the surrounding environment.

[0024] During the use of the electric screwdriver, the filter 7 at the rectangular ventilation openings on the front and rear sides of the dust cover 2 filters the air entering the dust cover 2 and blocks dust particles. The dust screen 6 at the heat dissipation vent on the left side of the dust cover 2 further blocks dust from entering the interior of the dust cover 2, protecting the internal components from dust contamination and ensuring the normal operation of the electric screwdriver.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A dustproof and heat-dissipating head housing device for an electric screwdriver, characterized in that, It includes an electric screwdriver body (1), a dust cover (2), a heat-conducting cylinder (3), heat dissipation fins (4) and a fan (5). The electric screwdriver body (1) has a dust cover (2) installed on the left side. The electric screwdriver body (1) has a heat-conducting cylinder (3) on the left side. The heat-conducting cylinder (3) has four heat dissipation fins (4) arranged circumferentially on the outside of the heat-conducting cylinder (3). The dust cover (2) has rectangular ventilation openings on both the front and back sides. The dust cover (2) has fans (5) symmetrically installed in the front and back sides.

2. The dustproof and heat-dissipating head housing device for an electric screwdriver according to claim 1, characterized in that, It also includes a dustproof net (6), and the dustproof cover (2) has heat dissipation vents evenly spaced on the left side, with a dustproof net (6) provided at each heat dissipation vent.

3. The dustproof and heat-dissipating head housing device for an electric screwdriver according to claim 2, characterized in that, It also includes a protrusion (8), and the inner right side of the dust cover (2) is symmetrically provided with a protrusion (8) above and below. The outer side of the left part of the electric screwdriver body (1) is provided with a sliding groove (9), and the protrusion (8) on the dust cover (2) slides in cooperation with the sliding groove (9).

4. The dustproof and heat-dissipating head housing device for an electric screwdriver according to claim 3, characterized in that, It also includes a rubber gasket (10), and the electric screwdriver body (1) has a rubber gasket (10) on the outer left side.

5. The dustproof and heat-dissipating head housing device for an electric screwdriver according to claim 4, characterized in that, A filter screen (7) is installed at each of the rectangular vents.

6. The dustproof and heat-dissipating head housing device for an electric screwdriver according to claim 1, characterized in that, The heat-conducting cylinder (3) is made of metal.