CN215470917U - Switch on hand-held type lithium electric tool - Google Patents

Abstract

The utility model discloses a switch on a handheld lithium electric tool, which comprises a switch, a handle and a battery pack, wherein a circuit board shell is arranged in the handle, an integrated circuit board is arranged in the circuit board shell, the switch and the integrated circuit board are of an integrated structure, and the switch and the integrated circuit board are directly connected with the integrated circuit board through electric wires. Set up original multiunit circuit board integration into integrated circuit board, can insert multiunit electric wire on same circuit board, shortened the connection length of electric wire greatly, set up circuit board shell outside integrated circuit board, effectively avoided dust, water and integrated circuit board direct contact to lead to the condition of short circuit to take place, set up the switch and be non-signal switch, the intercommunication condition of direct control battery package lies in whether to make the battery package be in the discharge state always with original signal switch difference.

Description

Switch on hand-held type lithium electric tool

Technical Field

The utility model relates to the field of tool switches, in particular to a switch on a handheld lithium-ion electric tool.

Background

The electric drill is a drilling machine using electricity as power, and the switch structure applied to the electric drill has the following defects: 1. the circuit board is naked, and the dustproof, waterproof and antistatic effects are poor; 2. the switch and the circuit board are of a split structure, a long wire needs to be connected to the circuit board, and the torque and the endurance performance of the motor are reduced due to the fact that the wire is too long; 3. the switch adopts a signal switch, so that the battery pack is always kept in a discharge state, and the service life of the battery pack is shortened by 4. the signal switch is interfered by the outside (such as lightning interference), and the chip or the MOS can be broken down and short-circuited, so that the dangers of combustion, explosion and the like can be caused; 5. when a signal switch is adopted, a strong current breaking function is not provided, and the battery pack needs to be plugged when the locked rotor is restarted.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a switch on a handheld lithium electric tool, which can effectively solve the problems of the switch.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a switch on hand-held type lithium electric tool, includes switch, handle, battery package, be provided with circuit board shell in the handle, be provided with the integrated circuit board in the circuit board shell, the switch with integrated circuit board formula structure as an organic whole, through the electric wire directly with the integrated circuit board is connected. The length of electric wire has been shortened in the setting like this, greatly avoids causing the phenomenon that motor moment of torsion and continuation of journey performance descend, sets up circuit board shell and greatly avoids integrated circuit board to receive the influence of static, dust, water.

In the above technical scheme, further, a plurality of clamping grooves are arranged on the circuit board shell, and the clamping grooves are used for clamping and embedding the electric wires. Set up like this, classify, clean and tidy orderly to the electric wire.

In the above technical solution, further, a cover plate is further disposed on the circuit board housing, and the cover plate covers the integrated circuit board in the circuit board housing. The arrangement is beneficial to conveniently maintaining or replacing the integrated circuit board arranged in the circuit board shell.

In the above technical scheme, further, a U-shaped groove is formed in the top of the circuit board housing, and a conversion motor is arranged in the U-shaped groove. By the arrangement, the conversion motor can be fixed.

In the above technical solution, further, the switch is a non-signal switch, and in the off state, the battery pack is kept in the off state. Compared with the prior battery pack which keeps a discharge state all the time, the battery pack is arranged in such a way, so that the service life of the battery pack can be greatly prolonged.

In the above technical scheme, further, two movable grooves are formed in the switch, a change-over switch is arranged on the handle, the change-over switch is matched with the movable grooves, and the change-over switch is changed to be embedded into different movable grooves after the switch is pressed. According to the arrangement, after the change-over switch is pressed leftwards and rightwards, the change-over switch is matched with one movable groove through the press switch to control the forward rotation and the reverse rotation of the motor.

In the above technical scheme, further, the battery pack with be provided with the socket plate between the circuit board shell, be provided with the fastener on the battery pack, the fastener with the socket plate cooperation control the battery pack with integrated circuit board's connected state.

The utility model has the beneficial effects that: 1. the original multiple groups of circuit boards are integrated to form an integrated circuit board, and multiple groups of wires can be connected onto the same circuit board, so that the connection length of the wires is greatly shortened; 2. a circuit board shell is arranged outside the integrated circuit board, so that the condition of short circuit caused by direct contact of dust and water with the integrated circuit board is effectively avoided; 3. the switch is set to be a non-signal switch, the connection condition of the battery pack is directly controlled, and the difference from the original signal switch lies in whether the battery pack is in a discharging state all the time.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

Fig. 1 is a perspective assembly view of the present invention.

Fig. 2 is a perspective view of the circuit board housing of the present invention.

Fig. 3 is a perspective view of the transfer switch of the present invention in combination with a switch.

Fig. 4 is a diagram showing a connection state of the battery pack and the ic board according to the present invention.

Fig. 5 is a diagram showing a state in which the battery pack of the present invention is disconnected from the ic board.

In the figure, 1, a conversion motor, 2, a clamping groove, 3, a cover plate, 4, a handle, 5, a socket plate, 6, a clip, 7, a battery pack, 8, a conversion switch, 9, a movable groove, 10, a circuit board shell, 11, a switch, 12, a U-shaped groove and 13, an integrated circuit board.

Detailed Description

Referring to fig. 1-5, a switch on hand-held type lithium electric tool, includes switch 11, handle 4, battery package 7 be provided with circuit board shell 10 in the handle 4, be provided with integrated circuit board 13 in the circuit board shell 10, switch 11 with integrated circuit board 13 formula structure as an organic whole, through the electric wire directly with integrated circuit board 13 is connected.

Original electric drill inner structure adopts naked body circuit board, and dustproof, waterproof, antistatic performance are poor, wherein cause the phenomenon of short circuit, damage when the metal dust that drops when the friction is attached to on the circuit board, set up outside the circuit board shell 10 protects the circuit board of the inside, prevents that dust, ponding from getting into.

The problem that commonly exists lies in the circuit board is more in 4 handles, and the circuit is complicated, leads to the length overlength of electric wire, makes the moment of torsion and the duration performance of motor descend in the use, for solving its problem, sets up the circuit board and does integrated circuit board 13 integrates the back with the multiunit circuit board, with electric wire lug connection on integrated circuit board 13, not only realized original function like this and still can shorten the connection length of electric wire on integrated circuit board 13 greatly, prevent that the electric wire overlength from leading to motor moment of torsion and duration performance to descend.

Switch 11 top is provided with two movable groove 9 be provided with change over switch 8 on the handle 4, change over switch 8 is the push type about, and is adjustable through controlling the push type change over switch 8's position, change over switch 8 with movable groove 9 cooperation, work as change over switch 8 with one of them department after movable groove 9 cooperation, press switch 11 can realize the corotation of electric drill, work as change over switch 8 with wherein another department after movable groove 9 cooperation, press switch 11 can realize the reversal of electric drill.

The top of circuit board shell 10 is provided with the U-shaped groove, the U-shaped inslot sets up conversion motor 1, conversion motor 1 with change over switch 8 is connected the cooperation, sets up the U-shaped groove is plastic construction the notch in U-shaped groove sets up to interior arc form, through this characteristics of the plasticity of plastics, can with conversion motor 1 card is gone into the U-shaped inslot, the U-shaped groove can be right conversion motor 1 fixes the top of circuit board shell 10 still is provided with the dog, the dog is for preventing to set up conversion motor 1 back-and-forth movement in the U-shaped inslot.

In order to replace the integrated circuit board 13, the circuit board housing 10 is further provided with a cover plate 3, the cover plate 3 is detachably connected with the circuit board housing 10, the circuit board housing 10 is provided with fixing holes, the cover plate 3 is provided with bumps, the bumps are embedded into the fixing holes to realize upper end fixing, the circuit board housing 10 is provided with clamping grooves 2 matched with electric wires, the clamping grooves 2 are arranged on the upper end of the circuit board housing 10 side by side, the lower end of the circuit board housing 10 is provided with a group of clamping grooves 2, the electric wires are classified and managed in the clamping grooves 2, the handle 4 is kept neat and orderly, a user can know the distribution condition of the electric wires, the lower end of the cover plate 3 is provided with a groove matched with the clamping grooves 2 at the lower end, and the cover plate 3 can be prevented from falling out after the groove on the cover plate 3 is matched with the clamping grooves 2 at the lower end, the lower end is fixed.

The common electric drill adopts a signal switch which can lead the battery pack 7 to carry out continuous discharge, greatly reduces the service life of the battery pack 7, and because no strong current breaking function is arranged, when the electric drill is locked, the problem can be solved only by pulling and inserting the battery pack 7 again, therefore, the switch 11 is set to be a non-signal switch, the socket board 5 is arranged between the battery pack 7 and the circuit board shell 10, the socket board 5 comprises a board extending downwards, a clip 6 is arranged on the battery pack 7, when the plug board is inserted into the clip 6, the battery pack 7 and the integrated circuit board 13 are kept in a connection state, otherwise, the battery pack 7 and the integrated circuit board 13 are in a disconnected state, and the service life of the battery pack 7 is prevented from being damaged due to the fact that the battery pack 7 is in a discharge state for a long time.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention in any way, and simple modifications, equivalent changes and modifications may be made without departing from the technical scope of the present invention.

Claims (7)

1. The utility model provides a switch on hand-held type lithium electric tool, includes switch, handle, battery package, its characterized in that, be provided with circuit board shell in the handle, be provided with the integrated circuit board in the circuit board shell, the switch with integrated circuit board formula structure as an organic whole, through the electric wire direct with the integrated circuit board is connected.

2. The switch on the hand-held lithium electric tool according to claim 1, wherein a plurality of clamping grooves are arranged on the circuit board shell, and the clamping grooves are used for clamping and embedding electric wires.

3. The switch of claim 1, wherein a cover plate is further disposed on the circuit board housing, and the cover plate covers the integrated circuit board inside the circuit board housing.

4. The switch of claim 1, wherein a U-shaped slot is formed in the top of the circuit board housing, and a switching motor is disposed in the U-shaped slot.

5. The switch of claim 1, wherein the switch is a non-signal switch that, when in an off state, maintains the battery pack in an off state.

6. The switch of claim 1, wherein the switch is provided with two movable grooves, the handle is provided with a change-over switch, the change-over switch is matched with the movable grooves, and the change-over switch is embedded into the different movable grooves after being pressed.

7. The switch of claim 1, wherein a socket is disposed between the battery pack and the circuit board housing, and a clip is disposed on the battery pack and cooperates with the socket to control a connection state between the battery pack and the integrated circuit board.

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