Electronic device and method for controlling power supply of electronic device

Patent metadata

Field	Value
Publication number	US-9851753-B2
Application number	US-201514755657-A
Country	US
Kind code	B2
Filing date	Jun 30, 2015
Priority date	Dec 31, 2014
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

An electronic device includes a first body and a second body which are detachably connected. The first body includes a frame and a fixing apparatus, and the second body includes a main functional unit. The fixing apparatus is connected to the frame and configured to fix the electronic device to an operation body. When the electronic device is fixed to the operation body via the fixing apparatus, the fixing apparatus and the frame form a ring-shaped space. A method for controlling power supply of the electronic device is also provided.

First claim

What is claimed is:

1. An electronic device, comprising:
a first body, comprising a frame and a fixing apparatus, the fixing apparatus being connected to the frame and configured to fix the electronic device to an operation body, the fixing apparatus and the frame forming a ring-shaped space in the case that the electronic device being fixed to the operation body by the fixing apparatus; and
a second body detachably connected to the first body, the second body comprising a main functional unit; and
wherein the main functional unit is detachably mounted to the frame; and the second body further comprises an elastic component connected to the main functional unit, the elastic component comprises an initial state and a deformed state, the elastic component is configured to generate an elastic force when in the deformed state to detach the main functional unit from the frame;
wherein the main functional unit is a display module, and a display output area of the display module is arranged on a front side of the main functional unit; and
wherein the display module comprises:
a display assembly configured to display a first image; and
a light transmission assembly configured to convert a light path of a first light beam which is emitted from the display assembly and corresponding to the first image, to form a second light beam corresponding to a magnified virtual image of the first image;
wherein the display assembly comprises a first display area and a second display area, the first display area is configured to display the first image if the main functional unit is mounted to the frame, and the second display area is configured to display the first image if the main functional unit is detached from the frame; the second display area is larger than the first display area, and the second display area comprises the first display area.

2. The electronic device according to claim 1 , further comprising:
a locking-unlocking device being arranged on a first part of the frame and a second part of the main functional unit, wherein the first part of the frame corresponds to the second part of the main functional unit in the case that the main functional unit is mounted to the frame;
wherein the locking-unlocking device is configured to maintain or release a relative positional relationship between the main functional unit and the frame.

3. The electronic device according to claim 2 , wherein the elastic force is a force generated by the elastic component during changing from the initial state to the deformed state in the case that the main functional unit is fixed to the frame by the locking-unlocking device.

4. The electronic device according to claim 3 , wherein the elastic force is released when the elastic component changing from the deformed state to the initial state in the case that the locking-unlocking device releases the relative positional relationship between the main functional unit and the frame.

5. The electronic device according to claim 4 , wherein a through hole is defined in the frame; and a first part of the main functional unit is inserted into the through hole to mount the main functional unit to the frame.

6. The electronic device according to claim 5 , wherein the elastic component is connected to the first part of the main functional unit; the first part of the main functional unit is a protrusion on a bottom surface of the main functional unit; and the through hole is configured to accommodate at least the elastic component when the elastic component is in the deformed state.

7. The electronic device according to claim 6 , wherein the elastic component is a wedged elastic component.

8. The electronic device according to claim 7 , wherein the wedged elastic component comprises:
a pressing plate connected to the first part of the main functional unit at a first position via a movable connecting member; and
an elastic body, having a first end fixed to the first part of the main functional unit at a second position which is different from the first position, and a second end fixed on the pressing plate away from a portion of the pressing plate for connecting the movable connecting member.

9. The electronic device according to claim 5 , wherein the locking-unlocking device is arranged on an inner wall of the through hole of the frame and an outer wall of the first portion of the main functional unit.

10. The electronic device according to claim 1 , wherein the first body further comprises an auxiliary functional unit having a first sensor for real-time detection and a first power supply unit, the auxiliary functional unit is arranged on the fixing apparatus or the frame, and electrically connected to the first power supply unit; the main functional unit comprises a second power supply unit; the electronic device further comprises:
a detection unit configured to detect whether the second body is detached from the first body, and generate a detection result; and
a control unit configured to control the first power supply unit to supply power to the auxiliary functional unit in the case that the detection result indicates that the second body is detached from the first body, and control the second power supply unit of the second body to supply power to both the auxiliary functional unit of the first body and the main functional unit of the second body in the case that the detection result indicates that the second body is coupled to the first body.

11. The electronic device according to claim 10 , wherein in the case that the detection result indicates that the second body is coupled to the first body, the control unit is configured to connect the second power supply unit with a first electric circuit to which the auxiliary functional unit is connected, and change component property of the first power supply unit, to control the second power supply unit to supply power to the first power supply unit.

12. The electronic device according to claim 11 , further comprising:
a first acquiring unit configured to acquire first energy storage information of the first power supply unit; and
a first comparison unit configured to compare the first energy storage information with a preset first threshold, and in the case that the first energy storage information reaches the first threshold, trigger the control unit to control the second power supply unit to stop supplying power to the first power supply unit and disconnect the second power supply unit from the first electric circuit to which the auxiliary functional unit is connected.

13. The electronic device according to claim 12 , further comprising:
a second acquiring unit configured to acquire second energy storage information of the second power supply unit in the case that the second body is coupled to the first body;
a first calculation unit configured to calculate a first charging duration required by the second power supply unit to reach a fully charged state, according to the second energy storage information and third energy storage information corresponding to the fully charged state of the second power supply unit;
a second calculation unit configured to calculate a first power supply duration of the first power supply unit for supplying power to the auxiliary functional unit when the first power supply unit is in fully charged state;
a third calculation unit configured to calculate a first difference value between the first power supply duration and the first charging duration; and
a first reminding unit configured to output first reminding information in the case that the first difference value is less than a preset threshold.

14. The electronic device according t

Assignees

• Lenovo Beijing Co Ltd

Inventors

• Gao Yan
• Zhu Xiaotian
• Lee Sang-Ho

Classifications

• A61B5/4809

  Sleep detection, i.e. determining whether a subject is asleep or not · CPC title

• G06F1/163 Primary

  Wearable computers, e.g. on a belt · CPC title

• G06F1/263

  Arrangements for using multiple switchable power supplies, e.g. battery and AC (G06F1/30 takes precedence) · CPC title

• G04G21/00

  Input or output devices integrated in time-pieces · CPC title

• A61B5/02438

  with portable devices, e.g. worn by the patient · CPC title