High-voltage brushless angle grinder with dustproof structure

By installing a dustproof mesh and a magnet inside the angle grinder's housing, a dual dustproof structure is formed, which solves the problem of motor jamming caused by metal dust adsorption and extends the motor's service life.

CN223790145UActive Publication Date: 2026-01-13JIANGSU TENGYA IRON ANCHOR TOOL CO LTD
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Patent Information

Application Number
CN202422040559.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-22
Publication Date
2026-01-13
Estimated Expiration
2034-08-22

AI Technical Summary

Technical Problem

In existing angle grinders, metal dust easily adheres to the rotor of the brushless motor during use, causing the motor to seize up and affecting its lifespan.

Method used

A dustproof screen and a magnet are installed inside the casing of the angle grinder to form a dual dustproof structure. The dustproof screen is located at the air inlet, and the magnet is located on the airflow channel to block and adsorb metal dust.

Benefits of technology

It effectively reduces the amount of metal dust entering the motor, extends the motor's lifespan, and improves the motor's reliability and durability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223790145U_ABST
    Figure CN223790145U_ABST
Patent Text Reader

Abstract

The utility model relates to a high-voltage brushless angle grinder with a dustproof structure, which comprises a motor and a shell, and the motor is accommodated in the shell; the motor includes: a stator; at least part of the rotor is arranged in the stator in a penetrating manner; the driving shaft is arranged in the rotor in a penetrating manner; an air inlet and an air outlet are formed in the shell, and the air inlet is located at the tail end of the shell; the air outlet is formed in the front end of the shell; an air flow channel is formed between the air inlet and the air outlet in the shell, and a magnet is arranged in the shell and located on the air flow channel. The dustproof net is arranged at the air inlet, the air flow channel is formed between the air inlet and the air outlet, the magnet is arranged in the shell, and the magnet is located on the air flow channel to form a two-way dustproof structure to prevent metal dust from entering the motor, so that the service life of the motor is guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to angle grinder technical field especially a high pressure brushless angle grinder. BACKGROUND

[0002] The existing angle grinder is prone to metal dust in the use process. Although the dust screen is blocked to metal dust to prolong the service life of the tool, but because the brushless motor rotor has a permanent magnet, so in the working process, the iron powder in the metal environment is inhaled. When a certain amount of iron powder is adsorbed on the rotor, the motor will be inserted and stuck, thereby affecting the motor life. SUMMARY

[0003] The utility model discloses to the purpose that the prior art exists problem provides a kind of high pressure brushless angle grinder, reduce metal dust into, guarantee motor life.

[0004] In order to achieve the above object, the basic technical scheme of the utility model is as follows: a high pressure brushless angle grinder with dustproof structure, comprising motor and shell, the motor is contained in the shell;Motor includes: stator;Rotor, at least part is arranged in the stator;Driving shaft, it is arranged in the rotor;Air inlet and air outlet are formed on the shell, wherein the air inlet is located at the tail end of the shell;Air outlet is located at the front end of the shell;In the shell, air inlet and air outlet form airflow channel between them, magnet is arranged in the shell, and the magnet is located on the airflow channel.

[0005] Further, the air inlet is provided with a dust screen, and the dust screen is detachably connected with the air inlet.

[0006] Further, the shell is provided with a rear cover, the rear cover is detachably connected with the shell, and the rear cover is arranged on the dust screen.

[0007] Further, a fan is arranged on the front end of the driving shaft;The air outlet and the fan are located on the same plane.

[0008] Further, the magnet is arranged on the airflow channel between the motor and the air inlet.

[0009] Further, the magnet is arranged at the tail of the motor, and the tail of the motor is located between the fan and the air inlet.

[0010] The utility model has the advantages of:

[0011] The dust screen is arranged at the air inlet, the airflow channel is formed between the air inlet and the air outlet, the magnet is arranged in the shell, and the magnet is located on the airflow channel to form two dustproof structures to prevent metal dust from entering the motor, thereby ensuring the motor life. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1The utility model discloses a high pressure brushless corner grinder's structure diagram.

[0013] Figure 2 The utility model discloses a high pressure brushless corner grinder's section view at A-A.

[0014] Figure 3 The utility model discloses a high pressure brushless corner grinder's bottom view.

[0015] Mark explanation: stator 11, rotor 12, drive shaft 13, casing 14, air inlet 15, dust screen 16, back cover 17, fan 18, air outlet 19, magnet 20. Specific implementation

[0016] As Figures 1-2 Shown, a high pressure brushless corner grinder with dustproof structure includes motor and casing 14, and the motor is contained in the casing 14;Motor includes: stator 11;Rotor 12, at least partially, is arranged in stator 11;Drive shaft 13, which is arranged in rotor 12;Casing 14 is provided with air inlet 15 and air outlet 19, wherein the air inlet 15 is located at the tail end of the casing 14, and the air inlet 15 has a specific shape and size to ensure sufficient air intake.

[0017] As Figure 3 Shown, the air outlet 19 is located at the front end of the casing 14;In the casing 14, the air inlet 15 and the air outlet 19 form an air flow channel, and the casing 14 is provided with a magnet 20, which is located on the air flow channel, and the magnet 20 is located on the air flow channel, which can form two dustproof structures to prevent metal dust from entering the motor and affecting the service life of the motor.

[0018] The air inlet 15 is provided with a dust screen 16, and the dust screen 16 is detachably connected with the air inlet 15. The mesh size of the dust screen 16 is accurately designed, which can effectively block the dust particles from entering.

[0019] The casing 14 is provided with a back cover 17, which is detachably connected with the casing 14, and the back cover 17 is arranged on the dust screen 16.

[0020] Fan 18, which is arranged on the front end of the drive shaft 13;The air outlet 19 and the fan 18 are located on the same plane, which is conducive to the smooth discharge of air flow, improves the heat dissipation and dustproof efficiency.

[0021] The magnet 20 is arranged on the air flow channel between the motor and the air inlet 15, and the magnet 20 can effectively adsorb metal dust. The installation mode of the magnet 20 is firm and reliable, and is convenient to replace and maintain.

[0022] The magnet 20 is arranged at the tail of the motor, and the tail of the motor is located between the fan 18 and the air inlet 15.

[0023] The utility model discloses beneficial effect is:

[0024] Form the airflow channel between the air inlet 15 and the air outlet 19, the magnet 20 is arranged in the shell 14, the magnet 20 is located on the airflow channel and forms two dustproof structures to prevent metal dust, thereby guaranteeing the motor life.

[0025] In addition to the above-mentioned embodiments, the utility model can also have other implementation manners. Any technical scheme formed by equivalent replacement or equivalent transformation falls within the protection scope required by the utility model.

Claims

1. A high-pressure brushless angle grinder with a dustproof structure, comprising a motor and a shell, the motor being accommodated in the shell; characterized in that: the motor comprises a stator; a rotor at least partially penetrating the stator; a driving shaft penetrating the rotor; an air inlet and an air outlet are formed on the shell, wherein the air inlet is located at the tail end of the shell; the air outlet is located at the front end of the shell; inside the shell, an airflow channel is formed between the air inlet and the air outlet, and a magnet is arranged in the shell and located on the airflow channel.

2. The high pressure brushless angle mill of claim 1, wherein: A dustproof screen is arranged at the air inlet and detachably connected with the air inlet.

3. The high pressure brushless angle grinder of claim 2, characterized by: A rear cover is arranged on the shell and detachably connected with the shell, and the rear cover is arranged on the dustproof screen.

4. The high pressure brushless angle grinder of claim 3, wherein: A fan is arranged on the front end of the driving shaft; the air outlet and the fan are located on the same plane.

5. The high pressure brushless angle grinder of claim 4, characterized by: The magnet is arranged on the airflow channel between the motor and the air inlet.

6. The high pressure brushless angle grinder of claim 5, wherein: The magnet is arranged at the tail end of the motor, and the tail end of the motor is located between the fan and the air inlet.