CN212578300U - Direct-drive electric angle grinder with waterproof function - Google Patents
Direct-drive electric angle grinder with waterproof function Download PDFInfo
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- CN212578300U CN212578300U CN202021283081.8U CN202021283081U CN212578300U CN 212578300 U CN212578300 U CN 212578300U CN 202021283081 U CN202021283081 U CN 202021283081U CN 212578300 U CN212578300 U CN 212578300U
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- switch
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- return spring
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Abstract
The utility model discloses a directly drive electronic angle mill with waterproof function, including aircraft nose and handle casing. The back of the handle shell is provided with a sealed switch well, and an induction type non-contact switch is formed by a button, a magnetic steel, a return spring, a sealing washer and a Hall induction head, wherein the switch button is installed in the switch well of the handle shell, the magnetic steel is arranged in the switch button, the return spring of the switch button is arranged on the periphery of the magnetic steel, the sealing washer is pressed on a circuit board of the driving module and the base part of the switch well on the handle shell to form the sealed switch well, and the Hall induction head is installed on the back of the circuit board of the driving module and forms a relative relation with the magnetic steel. Because the utility model discloses utilize hall induction technology, reform transform the motor starting switch of current angle mill, realized the non-direct contact start-up of motor, make the switch of angle mill be in the seal environment to the security when having guaranteed the angle mill and using under various adverse conditions.
Description
Technical Field
The utility model relates to an electric tool technical field especially relates to a directly drive angle mill.
Background
An electric angle grinder is a grinding tool for grinding, cutting, derusting, and polishing metal members using a thin grinding wheel, a rubber grinding wheel, a wire wheel, and the like that rotate at high speed. Because the angle grinder has a wide application range and can be frequently used under various severe working conditions, the sealing performance of the angle grinder is an important index for verifying that the angle grinder can also adapt to the use environment. In the conventional angle grinder, in order to improve the sealing property of the angle grinder, the switch is often sealed by using sealing rubber, however, the frequency of using the switch of the angle grinder is very high, the sealing property of the angle grinder is often damaged due to aging of the rubber after the angle grinder is used for a long time, and accidents are easily caused when the angle grinder is used under the condition of a relatively high humidity environment.
Disclosure of Invention
Technical defect to current angle mill existence, the utility model discloses an utilize induction technology, reform transform the switch design of current angle mill to solve prior art defect.
The utility model discloses a realize through following mode: the utility model provides a directly drive electronic angle mill with waterproof function, includes aircraft nose and handle casing, the aircraft nose is including the head and the brushless motor that are equipped with the abrasive disc, brushless motor sets up inside the aircraft nose, just brushless motor's main shaft is direct to be connected with the abrasive disc and is used for driving the abrasive disc and rotates handle casing in have brushless motor's drive module, handle casing back is equipped with and is equipped with the switch well, brushless motor's starting switch sets up in the switch well, its characterized in that: the starting switch comprises a switch button, magnetic steel, a return spring, a sealing washer and a Hall sensing head, wherein the switch button is installed in a switch well of the handle shell, the magnetic steel is arranged in the switch button, the return spring of the switch button is arranged on the periphery of the magnetic steel, one end of the return spring is in contact with the switch button, the other end of the return spring is in contact with a circuit board of the driving module, the sealing washer is pressed on the circuit board of the driving module and the base part of the switch well on the handle shell to form a sealed switch well, and the Hall sensing head is installed on the back of the circuit board of the driving module and forms a relative relation.
Because the utility model discloses utilize hall induction technology, reform transform the motor starting switch of current angle mill, realized the non-direct contact start-up of motor, make the switch of angle mill be in the seal environment to the security when having guaranteed the angle mill and using under various adverse conditions.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged schematic sectional view of the switch of the present invention.
In the figure: 1. A machine head 1; 2. a switch 2; 3. A handle 3; 21 magnetic steel 21; 22. a spring 22; 23. a switch button 23; 24. a sealing gasket 24; 25. a control module substrate 25; 26. a hall sensor head 26.
Detailed Description
As shown in fig. 1: constitute an electronic angle grinder directly drives with waterproof function by aircraft nose 1 and handle 3 casing, wherein aircraft nose 1 has included the head and the brushless motor of abrasive disc, and brushless motor sets up inside aircraft nose 1, and brushless motor's main shaft is direct to be connected with the abrasive disc and is used for driving the abrasive disc to rotate, and brushless motor's drive module installs in handle 3 casings.
The back of the shell of the handle 3 is provided with a switch well, and the starting switch 2 of the brushless motor is arranged in the switch well.
As shown in fig. 2: the starting switch 2 is composed of a switch button 23, a magnetic steel 21, a return spring 22, a sealing washer and a Hall sensing head 26, wherein the switch button 23 is installed in a switch well of a shell of the handle 3, the magnetic steel 21 is arranged in the switch button 23, the return spring 22 of the switch button 23 is arranged on the periphery of the magnetic steel 21, one end of the return spring 22 is in contact with the switch button 23, the other end of the return spring is in contact with a control module substrate 25 of the driving module, the sealing washer is pressed on the control module substrate 25 of the driving module and the base part of the switch well on the shell of the handle 3 to form the sealed switch well, and the magnetic steel 21 moves up and down in.
The hall sensor head 26 is mounted on the back surface of the control module substrate 25 of the drive module, and is in an opposing relationship with the magnetic steel 21.
The utility model discloses an angle grinder during operation presses starting switch button 23, sets up magnet steel 21 downstream in the button, and the hall inductive head 26 of installing at control module base plate 25 back takes place the effect, produces control switch 2's operating current signal on hall inductive head 26, realizes opening of motor.
Claims (1)
1. The utility model provides a directly drive electronic angle mill with waterproof function, includes aircraft nose and handle casing, the aircraft nose is including the head and the brushless motor that are equipped with the abrasive disc, brushless motor sets up inside the aircraft nose, just brushless motor's main shaft is direct to be connected with the abrasive disc and is used for driving the abrasive disc and rotates handle casing in have brushless motor's drive module, handle casing back is equipped with and is equipped with the switch well, brushless motor's starting switch sets up in the switch well, its characterized in that: the starting switch comprises a switch button, magnetic steel, a return spring, a sealing washer and a Hall sensing head, wherein the switch button is installed in a switch well of the handle shell, the magnetic steel is arranged in the switch button, the return spring of the switch button is arranged on the periphery of the magnetic steel, one end of the return spring is in contact with the switch button, the other end of the return spring is in contact with a circuit board of the driving module, the sealing washer is pressed on the circuit board of the driving module and the base part of the switch well on the handle shell to form a sealed switch well, and the Hall sensing head is installed on the back of the circuit board of the driving module and forms a relative relation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021283081.8U CN212578300U (en) | 2020-07-04 | 2020-07-04 | Direct-drive electric angle grinder with waterproof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021283081.8U CN212578300U (en) | 2020-07-04 | 2020-07-04 | Direct-drive electric angle grinder with waterproof function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212578300U true CN212578300U (en) | 2021-02-23 |
Family
ID=74653573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021283081.8U Active CN212578300U (en) | 2020-07-04 | 2020-07-04 | Direct-drive electric angle grinder with waterproof function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212578300U (en) |
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2020
- 2020-07-04 CN CN202021283081.8U patent/CN212578300U/en active Active
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