Automatic charging device

Abstract

An automatic charging device includes a base, a sensing unit, a displacement unit, a wireless charging unit, and a control unit. The base includes a support wall. The sensing unit includes several sensors. Each sensor can sense an electronic device and generate a sensing signal. The displacement unit includes a drivable movable base. The control unit has mounting position data, which shows the mounting position of each sensor corresponding to the mounting position on the base. The control unit analyzes the sensing signals to obtain position data of the electronic device and drives the displacement unit to move the movable base, thereby moving the wireless charging unit to a position below the electronic device. With this design, the user can automatically charge the electronic device by simply placing it at any position on the support wall.

Claims

1. An automatic charging device for wirelessly charging an electronic device having a charging coil located at its center, the automatic charging device comprising: a base including a support wall for placing the electronic device; a sensing unit including a plurality of sensors mounted on the base, each sensor capable of sensing the electronic device and generating a sensing signal; and a displacement unit mounted in the base and located below the support wall, and including a movable base that can be driven to move. A wireless charging unit is installed on the movable base and located below the support wall, and can be used to wirelessly charge the electronic device; and a control unit is signal-connected to the sensing unit and the displacement unit, and has built-in installation position data, which has the installation position of each sensor corresponding to the base. The control unit analyzes the installation positions corresponding to the sensing signals to obtain a position data of the electronic device placed on the support wall, and drives the displacement unit to move the movable base according to the position data and an initial position analysis of the movable base, thereby moving the wireless charging unit to the area below the electronic device.

2. The automatic charging device as claimed in claim 1, wherein, The base also includes a perimeter wall unit connected to the periphery of the support wall. The perimeter wall unit includes a first wall extending downward from the periphery of the support wall portion, and a second wall module extending vertically and connected to the remaining periphery of the support wall and connected to the first wall. The second wall module has a mounting wall portion higher than the support wall. The mounting wall portion cooperates with the support wall to define a placement space. The sensors are laterally spaced on the mounting wall portion, and each sensor faces the placement space and can sense the distance between itself and the electronic device.

3. The automatic charging device as claimed in claim 2, wherein, The mounting wall has a first section extending left and right, and two second sections extending rearward from the left and right sides of the first section respectively. Several of the sensors are spaced left and right in the first section, and the remaining several of the sensors are spaced front and back in one of the second sections.

4. The automatic charging device as claimed in claim 1, wherein, The support wall has an upward-facing top surface on which the sensors are arranged in a matrix. Each sensor can sense the weight of the electronic device and generate a sensing signal.

5. The automatic charging device as described in claim 3 or 4, wherein, The displacement unit also includes a first drive module installed in the base body, a moving platform installed in the first drive module and driven by the first drive module to move left and right, and a second drive module installed between the base body and the moving platform and connected to the moving base. The second drive module can be driven to move the moving base back and forth.

6. The automatic charging device as claimed in claim 5, wherein, The first drive module has a bracket unit mounted on the base, a first connector extending left and right from the bracket unit and connected to the mobile platform, and a first drive unit connected to the first connector. The first drive unit is signal-connected to the control unit and can be driven by the control unit, thereby driving the first connector to move the mobile platform left and right.

7. The automatic charging device as claimed in claim 6, wherein, The second drive module has two guide members extending left and right and arranged front and back on the base, a second connecting member arranged between the guide members and connected to the movable base, and a second drive unit installed and fixed on the movable platform and driven by the movable platform. The second drive unit is connected to the second connecting member and signal connected to the control unit. The second drive unit can be driven by the control unit, thereby driving the second connecting member to move the movable base back and forth.

8. The automatic charging device as claimed in claim 7, wherein, The first connecting member is screwed to the mobile platform and can be driven by the first drive unit, and the second connecting member is screwed to the mobile base and can be driven by the second drive unit.

9. The automatic charging device as claimed in claim 7, wherein, Each of the guide members has a guide groove that extends laterally and faces the other guide member, and the second connector has two ends that extend into the guide grooves and are movable relative to the guide members.

10. The automatic charging device as claimed in claim 1, wherein, The control unit will also generate a return drive signal when the sensing signals disappear, which will drive the displacement unit to move the movable seat back to the initial position.

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