Control mechanism on electric drill

Abstract

The utility model discloses a control mechanism on an electric drill, which comprises a controller connected with a motor on the electric drill, the controller is connected with a switch device, and the rotating speed of the motor is controlled by the controller through the switch device. The self-locking device is more reasonable in design, is favorable for realizing a self-locking effect, is convenient for actual operation of a user, and is more favorable for meeting actual requirements of the user.

Description

Technical Field

[0001] The utility model relates to the technical field of power tools, in particular to a control mechanism on a drill. Background Art

[0002] Among known power tools, drills are widely used in many applications such as drilling tiles, wood, metal, etc. The main structure of a drill mainly includes a power source motor, a battery pack for supplying power to the motor, a transmission device driven by the motor, and a chuck for holding the drill bit. For an existing water drill with a telescopic rear shoulder rest disclosed in a Chinese utility model patent with the authorization announcement number CN215511721U, when the locking button is pressed and the movable shoulder rest is slid forward in place and the locking button is released, the shoulder rest base can be locked, and the user can hold the handle with one hand, increasing the stability of the work. Currently, the switch used is generally a physical self-locking button, which cannot meet the requirements of modern users for electronic switches. Therefore, it is necessary to make improvements in this situation. Summary of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] Aiming at the deficiencies in the prior art, the utility model provides a control mechanism on a drill, which is more reasonably designed, is conducive to achieving a self-locking effect, is convenient for the actual operation of users, and is more conducive to meeting the actual needs of users.

[0005] (2) Technical Solutions to be Adopted

[0006] In order to achieve the above object, the technical solutions adopted by the utility model are as follows:

[0007] A control mechanism on a drill includes a controller connected to the motor on the drill. The controller is connected to a switch device, and the controller controls the rotation speed of the motor through the switch device.

[0008] Preferably, the controller contains a single-chip microcomputer. The switch device includes a female connector provided on the controller, a male connector inserted into the female connector, a micro switch on the male connector, and the micro switch is connected to a trigger.

[0009] Preferably, a protective layer is provided on the female connector.

[0010] Preferably, the motor is a brushless motor.

[0011] Preferably, the controller includes a base and a circuit board provided on the base, and a heat sink is provided on the circuit board.

[0012] Preferably, the heat sink is made of aluminum.

[0013] Preferably, a capacitor is connected to the circuit board through a wire.

[0014] Preferably, rubber sleeves are provided at both ends of the capacitor.

[0015] Preferably, the circuit board is fixedly mounted on the base by being enclosed with black resin.

[0016] Preferably, a display screen connected to the circuit board is further included.

[0017] (III) Technical effects to be achieved

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] Firstly, the present utility model includes a controller connected to the motor on the electric drill, and the controller is connected to a switch device. The speed of the motor is controlled through the controller for the switch device, and its design is more reasonable. On the basis of being convenient for production and manufacturing, it is also beneficial for the actual operation of users.

[0020] Secondly, the control device of the present utility model includes a base and a circuit board disposed on the base. A heat sink is provided on the circuit board, and a control module is included in the circuit board. A female connector is provided on the circuit board, and a male connector is provided on the switch. The insertion of the female connector and the male connector makes the control device connected to the switch. Such a control device is not only simple in setting, convenient for production and manufacturing, but also beneficial for achieving a self-locking effect, and is more beneficial for meeting the actual needs of users. Description of the drawings

[0021] Figure 1 It is a schematic frame diagram of the present utility model.

[0022] Figure 2 It is a schematic structural diagram of the control device of the present utility model.

[0023] Figure 3 It is a schematic diagram of the cooperation of the base, the circuit board and the heat sink of the present utility model.

[0024] Figure 4 It is a schematic structural diagram of the capacitor of the present utility model.

[0025] Figure 5 It is a schematic structural diagram of the male connector, the micro switch and the trigger of the present utility model.

[0026] In the figure: 1, motor; 2, controller; 3, switch device; 21, base; 22, circuit board; 23, heat sink; 24, capacitor; 25, display screen; 31, female connector; 32, male connector; 33, micro switch; 34, trigger; 241, rubber sleeve. Detailed implementation manners

[0027] In the description of the present utility model, it should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined. The meaning of "several" is one or more, unless otherwise specifically defined.

[0029] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] To make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below through the drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present utility model and do not limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0031] Embodiment 1: Refer to Figure 1 and Figure 2, A control mechanism on a drill, including a controller 2 connected to the motor 1 on the drill (which can also be a water drill), the controller 2 is connected to a switch device 3, and the switch device 3 is controlled by the controller 2 to control the rotation speed of the motor 1.

[0032] Embodiment 2: It can be described based on Embodiment 1. As Figure 2 , Figure 4 and Figure 5 shown, the controller 2 contains a single-chip microcomputer, and the single-chip microcomputer contains a pre-set programming program. The switch device 3 includes a female connector 31 arranged on the controller 2. The female connector 31 is plugged with a male connector 32 for easy installation. A micro switch 33 is arranged on the male connector 32. The micro switch 33 is connected to a trigger 34. The rotation speed of the motor 1 is adjusted through the pressing stroke of the trigger 34. When the trigger 34 is pressed to the bottom for the first time and held for a certain time (set in advance, such as more than 2S), the motor 1 runs at the highest speed. At this time, when the trigger 34 is released, the controller 2 will keep the motor 1 running at full speed. When the trigger 34 is pressed to the bottom again and not released, the motor 1 still runs at full speed. When the trigger 34 is released, the motor 1 powers off and stops. Thus, a self-locking effect is achieved, which is more conducive to meeting the actual needs of users. Among them, a protective layer is arranged on the female connector 31, which is beneficial to play a certain protective role for the female connector 31. Both the trigger 34 and the micro switch 33 are prior arts, so no detailed description is given.

[0033] Embodiment 3: It can be described based on Embodiment 1 or Embodiment 2. As Figure 1 shown, the motor 1 is a brushless motor, and the no-load speed of the brushless motor is 25000 rpm, which greatly improves the operation efficiency. This kind allows for less noise, smooth operation, low interference, long life, and low maintenance cost, and has stronger practicability.

[0034] Embodiment 4: It can be described based on Embodiment 1 or Embodiment 2. As Figure 2 and Figure 3 shown, the controller 2 includes a base 21 and a circuit board 22 arranged on the base 21. A heat sink 23 is arranged on the circuit board 22. In this embodiment, the heat sink 23 is made of aluminum material (which reduces the production and manufacturing cost and is also beneficial to heat dissipation), which is beneficial to improving the heat dissipation effect. It should be noted that the circuit board 22 is connected to a capacitor 24 through a wire. This kind of setting is beneficial to reduce filtering and is more conducive to normal operation. As Figure 4 shown, it should also be noted that rubber sleeves 241 are arranged at both ends of the capacitor 24. This kind of setting is more beneficial to protecting the capacitor 24 and improving its service life. Finally, it should also be noted that the wire is sleeved with a yellow wax tube, which is beneficial to playing a certain protective role for the wire.

[0035] Among them, as Figure 2 and Figure 3As shown, the circuit board 22 is fixed on the base 21 by being enclosed with black resin, greatly enhancing the firmness of the structure.

[0036] Among them, as Figure 2 shown, it further includes a display screen 25 connected to the circuit board 22, and the display screen 25 uses a liquid crystal display screen, which is more conducive to displaying corresponding data and can better meet the usage requirements.

[0037] The standard parts used in this application document can all be purchased from the market. The specific connection methods of each part all adopt conventional means such as bolts and rivets that are mature in the prior art. The internal components of the circuit board, single-chip microcomputer, and microswitch all adopt conventional models in the prior art, and their internal structures belong to the prior art structures. Workers can complete normal operations on them according to the prior art manuals. Coupled with the circuit connection adopting the conventional connection method in the prior art, no specific description will be made here.

[0038] It should be noted that although the above-mentioned embodiments have been described in this article, the patent protection scope of the present utility model is not limited thereby. Therefore, based on the innovative concept of the present utility model, any changes and modifications made to the embodiments described in this article, or equivalent structural or equivalent process transformations made using the content of the specification and drawings of the present utility model, directly or indirectly applying the above technical solutions to other related technical fields, are all included in the patent protection scope of the present utility model.

Claims

1. A control mechanism on an electric drill, comprising a controller (2) connected to a motor (1) on the electric drill, wherein the controller (2) is connected to a switch device (3), and the switch device (3) is used to control the rotation speed of the motor (1) through the controller (2).

2. The control mechanism on the electric drill according to claim 1, characterized in that: The controller (2) contains a single-chip microcomputer, and the switch device (3) comprises a female connector (31) arranged on the controller (2), a sub-connector (32) being plugged into the female connector (31), a micro switch (33) on the sub-connector (32), and a trigger (34) being connected to the micro switch (33).

3. The control mechanism on the electric drill according to claim 2, characterized in that: A protective layer is provided on the female connector (31).

4. The control mechanism on the electric drill according to claim 1, 2 or 3, characterized in that: The motor (1) is a brushless motor.

5. The control mechanism on the electric drill according to claim 1, 2 or 3, characterized in that: The controller (2) comprises a base (21) and a circuit board (22) arranged on the base (21), and a heat sink (23) is arranged on the circuit board (22).

6. The control mechanism of the electric drill according to claim 5, characterized in that: The heat sink (23) is made of aluminum.

7. The control mechanism of the electric drill according to claim 5, characterized in that: The circuit board (22) is connected to a capacitor (24) via a wire.

8. The control mechanism of the electric drill according to claim 7, characterized in that: Rubber sleeves (241) are provided at both ends of the capacitor (24).

9. The control mechanism of the electric drill according to claim 5, characterized in that: The circuit board (22) is sealed and fixed on the base (21) by black resin.

10. The control mechanism of the electric drill according to claim 5, characterized in that: It also includes a display screen (25) connected to the circuit board (22).

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