Patent Application
20200313450
The technical field generally relates to an electric clamping device, in particularly, to a method using an electric clamping device with wireless charging module to achieve automatic clamping on electronic device.
An electric clamping device is an electronic product that can automatically hold a mobile phone. The operation principle of the electric clamping device is that a left clamping arm and a right clamping arm capable of relative movement are mounted on a body. A set of linkage mechanism and an electric motor are disposed inside the body. The linkage mechanism may be a gear set, or a structure such as a worm and a worm gear, and is responsible for driving the left clamping arm to move synchronously with the right clamping arm. The electric motor is responsible for driving the linkage mechanism. When a mobile phone is placed on the body, the electric motor drives the linkage mechanism to bring the left and right clamping arms closer to or away from each other for the purpose of clamping or releasing the mobile phone.
Therefore, the electric clamping device has two operating states, and two sets of sensing units are required to activate the electric motor: 1. the user places the mobile phone on the body, and the electric motor starts to make the left clamping arm and the right clamping arm clamp the mobile phone; 2. the user wants to remove the mobile phone from the body, and the electric motor activates to reverse to open the left and right clamping arms. The sensing unit can be an infrared sensing element, a voltage or current sensing element, a touch switch, or the like. Since the use of two sensing units makes the structure more complicated and costly, the inventors have skillfully applied the structure of the electric clamping device to achieve the purpose of clamping by different operation methods.
The primary object of the present invention is to provide a clamping activation method for an electric clamping device with wireless charging, by using a wireless charging module to activate an electric clamping assembly to perform clamping when sensing that a mobile phone is approaching to be charged by a power supply unit; as such, a sensing unit is saved to simplify the structure as well as smooth the operation.
To achieve the above object, the present invention provides a clamping activation method, applicable to an electric clamping device with wireless charging, the electric clamping device comprising a body and a wireless charging module, a control unit, and an electric clamping assembly, all disposed inside the body. The clamping activation method comprises: the control unit receiving a signal generated by the wireless charging module; the control unit activating the electric clamping assembly to clamp the electronic device according to the signal; and the control unit activating the wireless charging module to charge the electronic device.
The present invention is characterized in that when a user places a wirelessly chargeable electronic device (such as a mobile phone) on the body, the wireless charging module generates a corresponding weak current by sensing a wireless charging coil in the electronic device. When the electronic device is placed on the body at the correct charging position, the current signal strength is relatively stronger. At this point, the control unit activates the electric clamping assembly to clamp the electronic device, and then supplies a large current to the wireless charging module for wireless charging operation.
In an embodiment of the present invention, the manner of activating the electric clamping assembly is that the control unit supplies power to the electric clamping assembly for an energizing time of 1 to 5 seconds; the energizing time allows the supply of electricity for a short period of time after the electric clamping assembly clamping the electronic device, to maintain clamping tightness and maintain a proper clamping force after stopping supplying electricity.
In an embodiment of the present invention, the electric clamping assembly comprises two clamping arms, a mechanical linkage mechanism and an electric motor. The two clamping arms are mounted to the body and can move relatively close to or away from each other. The mechanical linkage mechanism is mounted in the body. The mechanical linkage mechanism can be a gear set, or a structure such as a worm and a worm gear, and is responsible for driving the two clamping arms to move synchronously. The electric motor is responsible for driving the mechanical linkage mechanism to operate.
The foregoing will become better understood from a careful reading of a detailed description provided herein below with appropriate reference to the accompanying drawings.
The embodiments can be understood in more detail by reading the subsequent detailed description in conjunction with the examples and references made to the accompanying drawings, wherein:
In the following detailed description, for purpose of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically shown in order to simplify the drawing.
Step 101: the control unit receiving a signal generated by the wireless charging module;
Step 102: the control unit activating the electric clamping assembly to clamp the electronic device according to the signal; and
Step 103: the control unit activating the wireless charging module to charge the electronic device.
In steps 101 and 102, when a user places a wirelessly chargeable electronic device onto the body, the wireless charging module generates a corresponding weak current, and the current is the signal. The control unit activates the electric clamping assembly according to the signal. According to the signal, the activation can be performed in two manners: first, the control unit receives the signal and immediately activates the electric clamping assembly; and, secondly, the control unit does not act immediately after receiving the signal; instead, when the current of the signal reaches a certain value, the control unit starts to activate. Because the current value changes in accordance with the distance between the electronic device and the wireless charging module, and the second manner is to activate the charging when the electronic device is right above the wireless charging module to avoid pre-mature activation. Then, the control unit can sequentially activate the electric clamping assembly and then provide a larger current to the wireless charging module for wirelessly charging the electronic device. In the present embodiment, the electronic device is a mobile phone and the mobile phone is disposed with a wireless charging coil.
In step 102, the manner of activating the electric clamping assembly is that the control unit supplies power to the electric clamping assembly for an energizing time of 1 to 5 seconds; the energizing time allows the supply of electricity for a short period of time, as opposed to stop supplying power immediately, after the electric clamping assembly clamping the electronic device, to maintain clamping tightness and maintain a proper clamping force after the power stops.
The electric clamping assembly 24 can be a variety of conventional electric clamping mechanisms, and only one embodiment is provided as a reference and does not limit the scope of the invention. As shown in
In the embodiment of
It will be apparent to those skilled in the art that various modifications and variations can be made to the disclosed embodiments. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims and their equivalents.
