CN210650044U

CN210650044U - Novel angle grinder

Info

Publication number: CN210650044U
Application number: CN201921819560.4U
Authority: CN
Inventors: 王勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-06-02
Anticipated expiration: 2029-10-28

Abstract

The utility model discloses a novel angle grinder, it relates to the angle grinder field, be provided with press switch on motor housing's the lateral wall, be provided with brushless motor in the motor housing, motor housing's one end passes through the screw rod with the handle and fixes, the below of handle is provided with the base, the cavity internal fixation of base has brushless motor intelligent control ware, be provided with battery package socket on the base, it has the lithium cell package to peg graft on the battery package socket, motor housing's the other end is fixed with the head shell through the screw rod, be provided with the gear box in the head shell, the below of gear box is provided with the output shaft, be provided with the cutting piece on the output shaft. Its structural design is reasonable, easy operation, and convenient to use through adopting intelligent frequency conversion technique, installs brushless motor intelligent control ware in the angle grinder to be connected with the press switch circuit board, furthest extension battery duration under current hardware condition.

Description

Novel angle grinder

The technical field is as follows:

the utility model relates to a novel angle grinder belongs to angle mill technical field.

Background art:

the user of the lithium electric angle grinder sold in the market at present generally reflects that the battery endurance time is not ideal, and hopefully, the service life can be prolonged. The angle grinder in the market adopts the push switch to drive the push link rod to complete the starting and closing effects, so that the angle grinder is very laborious to use, dust is easy to accumulate if the push link rod is used for a long time, the angle grinder is easy to accumulate dust during grinding or cutting work, the push switch is very laborious to push after accumulating dust, the angle grinder is easy to clamp, frequent maintenance is needed, the service life of the switch is short, and the use requirements of people cannot be met.

The utility model has the following contents:

to the above problem, the to-be-solved technical problem of the utility model is to provide a novel angle grinder.

The utility model discloses a novel angle grinder, it contains motor housing, press the switch, brushless motor, a handle, a pedestal, brushless motor intelligent control ware, the battery package socket, the lithium cell package, the head shell, the gear box, an output shaft, the cutting piece, be provided with press the switch on motor housing's the lateral wall, be provided with brushless motor in the motor housing, motor housing's one end passes through the screw rod with the handle and fixes, the below of handle is provided with the base, the cavity internal fixation of base has brushless motor intelligent control ware, be provided with battery package socket on the base, it has the lithium cell package to peg graft on the battery package socket, motor housing's the other end is fixed with the head shell through the screw rod, be provided with the gear box in the head shell, the below of gear box is provided with the output shaft.

Preferably, a push switch circuit board is arranged below the push switch and is connected with the brushless motor intelligent controller through a power line.

Preferably, the handle consists of a left handle and a right handle, and the left handle and the right handle are fixedly connected through a plurality of automatic screws.

The utility model has the advantages that: its structural design is reasonable, easy operation, and convenient to use through adopting intelligent frequency conversion technique, installs brushless motor intelligent control ware in the angle grinder to be connected with the press switch circuit board, furthest extension battery duration under current hardware condition.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and accompanying drawings.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a partially exploded view of the present invention.

1-a motor housing; 2-pressing a switch; 3-a brushless motor; 4-a handle; 5-a base; 6-brushless motor intelligent controller; 7-battery pack socket; 8-a lithium battery pack; 9-skull shell; 10-a gearbox; 11-an output shaft; 12-cutting slice.

The specific implementation mode is as follows:

as shown in fig. 1 to fig. 3, the following technical solutions are adopted in the present embodiment: it contains motor housing 1, press switch 2, brushless motor 3, handle 4, base 5, brushless motor intelligent control ware 6, battery package socket 7, lithium cell package 8, head shell 9, gear box 10, output shaft 11, cutting piece 12, be provided with press switch 2 on motor housing 1's the lateral wall, be provided with brushless motor 3 in the motor housing 1, motor housing 1's one end is fixed through the screw rod with handle 4, handle 4's below is provided with base 5, base 5's cavity internal fixation has brushless motor intelligent control ware 6, be provided with battery package socket 7 on the base 5, it has lithium cell package 8 to peg graft on the battery package socket 7, motor housing 1's the other end is fixed with head shell 9 through the screw rod, be provided with gear box 10 in the head shell 9, gear box 10's below is provided with output shaft 11, be provided with cutting piece 12 on the output shaft 11.

A press switch circuit board 2-1 is arranged below the press switch 2, and the press switch circuit board 2-1 is connected with a brushless motor intelligent controller 6 through a power line 2-2; the handle 4 consists of a left handle 4-1 and a right handle 4-2, and the left handle 4-1 and the right handle 4-2 are fixedly connected through a plurality of automatic screws.

The working principle of the specific embodiment is as follows: lithium cell package 8 power supplies power for brushless motor intelligent control ware 6, press the switch-on when press switch 2 and give 6 working signal of brushless motor intelligent control ware, brushless motor intelligent control ware 6 begins work, output current to brushless motor 3, brushless motor 3 begins rotatoryly, it is rotatory to drive gear box 10 in the head shell 9, gear box 10 passes through output shaft 11 and drives cutting piece 12 or the abrasive disc of fixing on output shaft 11 rotatory, the user can polish cutting work with cutting piece 12 or abrasive disc this moment.

In the embodiment, after the angle grinder is started, the angle grinder is not used for working such as cutting and grinding, a built-in system on the brushless motor intelligent controller 6 can continuously monitor the current passing through an internal circuit, when the monitored current value is lower than a certain preset value, the system judges that the angle grinder is not in a working state at the moment, a frequency conversion instruction is output at the moment to enable the motor to run at a reduced speed, the rotating speed of the motor is reduced to 75% of the normal rotating speed, the current is reduced to 70% of the normal current at the moment, and the angle grinder is in a reduced speed power-saving mode and is similar to an escalator; when the angle grinder is used for working such as cutting and grinding, the built-in system of the angle grinder can continuously monitor the current passing through the internal circuit, when the monitored current value is higher than a certain preset value, the system judges that the angle grinder is in a working state at the moment, a frequency conversion command is output to enable the motor to run at full speed of 100%, the angle grinder is in a normal working mode, and the judgment time of the built-in system is less than 0.5S.

In the embodiment, when a user does not generally work continuously in the using process, such as cutting and grinding, and the like, during the cutting and grinding, the work can be suspended but the continuous running state of the angle grinder can be maintained, such as cutting off one workpiece and then cutting a second workpiece, and the process of re-preparing for cutting can be performed, namely, the standby state exists, at this time, the angle grinder does not need to be maintained in the full-speed working state, and the speed reduction and power saving mode is started, so that the power consumption of a battery can be obviously reduced, and the purpose of prolonging the battery endurance time can be achieved.

This embodiment structural design is reasonable, easy operation, and convenient to use through adopting intelligent frequency conversion technique, installs brushless motor intelligent control ware in the angle grinder to be connected with the press switch circuit board, can furthest extension battery duration under current hardware condition.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A novel angle grinder is characterized in that: the intelligent brushless motor controller comprises a motor shell (1), a press switch (2), a brushless motor (3), a handle (4), a base (5), a brushless motor intelligent controller (6), a battery pack socket (7), a lithium battery pack (8), a head shell (9), a gear box (10), an output shaft (11) and a cutting blade (12), wherein the press switch (2) is arranged on the side wall of the motor shell (1), the brushless motor (3) is arranged in the motor shell (1), one end of the motor shell (1) is fixed with the handle (4) through a screw rod, the base (5) is arranged below the handle (4), the brushless motor intelligent controller (6) is fixed in a cavity of the base (5), the battery pack socket (7) is arranged on the base (5), the lithium battery pack (8) is inserted into the battery pack socket (7), the head shell (9) is fixed at the other end of the motor shell (1) through a screw rod, a gear box (10) is arranged in the head shell (9), an output shaft (11) is arranged below the gear box (10), and a cutting blade (12) is arranged on the output shaft (11).

2. The novel angle grinder of claim 1, wherein: a press switch circuit board (2-1) is arranged below the press switch (2), and the press switch circuit board (2-1) is connected with a brushless motor intelligent controller (6) through a power line (2-2).