CN103001295B - Wireless charging equipment - Google Patents

Abstract

The invention discloses wireless charging equipment, which comprises a detection device, a high-directivity antenna and a vacuum box, wherein the detection device and the high-directivity antenna are arranged in the vacuum box, the detection device is used for detecting the position of the charged equipment, and the high-directivity antenna adjusts the direction according to the position of the charged equipment detected by the detection device so as to align with the charged equipment for charging. By adopting the wireless charging equipment, the charged equipment can be charged when being arranged at any position of the wireless charging equipment, and the degree of freedom of wireless charging is improved.

Description

A wireless charging device

technical field

The invention relates to the field of wireless charging, in particular to a wireless charging device.

Background technique

With the development of portable electronic products such as mobile phones and tablet computers, wireless charging is a technology with broad development prospects. When charging, the charged device can be charged by using the principle of electromagnetic wave induction as long as it is placed on the matching charging platform. The charging cable is connected to the charged device, but taking the mobile phone as an example, the wireless charging device used by the current mobile phone often requires the mobile phone to be placed in a fixed position and very close to the charging device (millimeter level) for charging, so wireless charging is used When setting, it is often necessary to carefully put the mobile phone in a fixed position, otherwise it will not be able to charge.

Contents of the invention

The technical problem to be solved by the present invention is to make up for the deficiencies of the above-mentioned prior art, and propose a wireless charging device, which can realize charging when the charged device is placed in any position of the wireless charging device, and improves the degree of freedom of wireless charging.

Technical problem of the present invention is solved by following technical scheme:

A wireless charging device, comprising a detection device, a highly directional antenna and a vacuum box, the detection device and the high directional antenna are placed in the vacuum box, the detection device is used to detect the position of the charged device, the The high-directivity antenna adjusts its direction according to the position of the charged device detected by the detection device so as to be aimed at the charged device for charging.

Preferably, the high directivity antenna refers to an antenna with directivity no less than 30dB.

Preferably, the vacuum box is transparent, the detection device is an infrared detection device, and the infrared detection device includes a plurality of detection units respectively used to detect the charged device in different directions.

Preferably, the vacuum box is surrounded by glass, the detection device is an infrared detection device, and the infrared detection device includes a plurality of detection units respectively used to detect the charged device in different directions.

Preferably, the vacuum box is transparent, and the detection device is an infrared detection device, including an active infrared detection device and a passive infrared detection device, and the passive infrared detection device includes a plurality of charged devices for detecting different directions The approach detection unit of the device, the active infrared detection device is rotatably fixed in the vacuum box, and is used to detect and determine the specific position of the charged device approaching.

Preferably, the vacuum box is surrounded by glass, and the detection device is an infrared detection device, including an active infrared detection device and a passive infrared detection device, and the passive infrared detection device includes a plurality of passive infrared detection devices for detecting different directions The approach detection unit of the charging device, the active infrared detection device is rotatably fixed in the vacuum box, and is used to detect and determine the specific position of the approached charged device.

Preferably, the detection device is a proximity sensor, and there are multiple proximity sensors, which are respectively fixed on the inner walls of the vacuum box in different directions, and are used to detect and determine the specific position of the charged device.

Preferably, the detection device is an ultrasonic detection device, and there are multiple ultrasonic detection devices, which are respectively fixed on the inner walls of the vacuum box in different directions, and are used to detect and determine the specific position of the charged device.

The beneficial effect of the present invention compared with the prior art is that the wireless charging device of the present invention uses a highly directional antenna to charge the charged device, the charged device can move within a wide range, and the vacuum box is used to reduce the Path loss during antenna transmission improves charging efficiency.

Description of drawings

Fig. 1 is a schematic diagram of a wireless charging device in an embodiment of the present invention;

Fig. 2 is a schematic diagram of the positional relationship between the charged device and the wireless charging device in an embodiment of the present invention.

detailed description

The present invention will be described in detail below with reference to the accompanying drawings and in combination with preferred specific embodiments.

The present invention provides a wireless charging device. In one embodiment, as shown in FIG. 1 , it includes a detection device 1, a high directivity antenna 2 and a vacuum box 3. In the vacuum box 1, the detection device 1 is used to detect the position of the charged device, and the high directivity antenna 2 adjusts its direction according to the position of the charged device detected by the detection device 1 to align with the charged device. The charging device is charged.

The highly directional antenna has a large transmission distance and concentrated directionality, which can improve the charging efficiency of the charged device. The charged device can be placed anywhere outside the vacuum box, but because the high-frequency microwave sent by the antenna is attenuated in the air Larger, in order to ensure charging efficiency and reduce energy loss, it is better to place the charged equipment close to the outer surface of the vacuum box. The charged equipment can be portable electronic products such as mobile phones and tablet computers, as shown in Figure 2. A schematic diagram of the positional relationship between the device and the wireless charging device, the device to be charged 4 can be placed at any position on the outer surface of the vacuum box 3, with a high degree of freedom.

When more than one device to be charged is detected, only one highly directional antenna can be set in the vacuum box, and the optimized charging algorithm (such as sequence priority, power priority, etc.) The charged device is charged; multiple high-directional antennas can also be set up, and the direction of each antenna is adjusted separately, so that one antenna is aligned with one charged device, and multiple charged devices are charged at the same time.

Preferably, the high directivity antenna refers to an antenna with a relatively large directivity coefficient, specifically, it may refer to an antenna with a directivity coefficient not less than 30 dB.

The detection device can detect the approach and distance of the charged device to determine its corresponding position, interact with the corresponding chip in the charged device, and adjust the position of the antenna to align with the charged device for charging.

For example, in a preferred embodiment, the vacuum box is transparent, and the detection device can be an infrared detection device, which can not only ensure the path loss in the antenna transmission process, improve charging efficiency, but also ensure that the infrared detection device can accurately detect For the charged device, the infrared detection device includes a plurality of detection units for detecting the charged device in different directions. When the infrared detection device detects that the charged device is approaching, it sends a signal to interact with it. The charging module responds to the signal and starts charging.

In another preferred embodiment, the vacuum box is surrounded by glass, the detection device is an infrared detection device, and the infrared detection device includes a plurality of detection units respectively used to detect the charged equipment in different directions. Vacuum boxes can be made into various decorative shapes, such as crystal lamps, glass statues, etc.

In yet another preferred embodiment, the vacuum box is transparent, and the detection device is an infrared detection device, including an active infrared detection device and a passive infrared detection device, and the passive infrared detection device includes a plurality of The approach detection unit of the charged device in the direction, the active infrared detection device is rotatably fixed in the vacuum box, and is used to detect and determine the specific position of the charged device approaching.

In yet another preferred embodiment, the vacuum box is surrounded by glass, and the detection device is an infrared detection device, including an active infrared detection device and a passive infrared detection device, and the passive infrared detection device includes a plurality of The detection unit for the approach of the charged equipment in different directions, the active infrared detection device is rotatably fixed in the vacuum box, and is used to detect and determine the specific position of the approached charged equipment.

In other preferred embodiments, the detection device may also be a proximity sensor. There are multiple proximity sensors, which are respectively fixed on the inner walls of the vacuum box in different directions, and are used to detect and determine the specific position of the charged device. Alternatively, the detection device may also be an ultrasonic detection device, and there are multiple ultrasonic detection devices, which are respectively fixed on the inner wall of the vacuum box, and are used to detect and determine the specific position of the charged device.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field of the present invention, without departing from the concept of the present invention, making several equivalent substitutions or obvious modifications, and having the same performance or use, should be deemed to belong to the protection scope of the present invention.

Claims (7)

1. A wireless charging device for portable electronic products, characterized in that: it includes a detection device, a highly directional antenna and a vacuum box, the detection device and the high directional antenna are placed in the vacuum box, and the vacuum box The outer surface is used to place the charged device, and the detection device is used to detect the position of the charged device. The high directivity antenna refers to an antenna with a directivity not less than 30dB. The high directivity antenna is based on the detection device The detected position of the charged device adjusts the direction to align the charged device for charging. 2. The wireless charging device according to claim 1, characterized in that: the vacuum box is transparent, the detection device is an infrared detection device, and the infrared detection device includes a plurality of detection devices respectively used to detect different directions. Detection unit for charging equipment. 3. The wireless charging device according to claim 1, wherein the vacuum box is surrounded by glass, the detection device is an infrared detection device, and the infrared detection device includes a plurality of sensors for detecting different directions. The detection unit of the charged device. 4. The wireless charging device according to claim 1, wherein the vacuum box is transparent, and the detection device is an infrared detection device, including an active infrared detection device and a passive infrared detection device, and the passive infrared detection device The detection device includes a plurality of detection units for detecting the approach of the charged equipment in different directions, the active infrared detection device is rotatably fixed in the vacuum box, and is used for detecting the approached charged equipment specific location. 5. The wireless charging device according to claim 1, characterized in that: the vacuum box is surrounded by glass, the detection device is an infrared detection device, including an active infrared detection device and a passive infrared detection device, the passive infrared detection device The infrared detection device includes a plurality of detection units for detecting the approach of the charged equipment in different directions, the active infrared detection device is rotatably fixed in the vacuum box, and is used to detect and determine the approach of the charged equipment The exact location of the device. 6. The wireless charging device according to claim 1, wherein the detection device is a proximity sensor, and there are multiple proximity sensors, which are respectively fixed on the inner walls of the vacuum box in different directions for detecting Determine the exact location of the device being charged. 7. The wireless charging device according to claim 1, characterized in that: the detection device is an ultrasonic detection device, and there are multiple ultrasonic detection devices, which are respectively fixed on the inner walls of the vacuum box in different directions, for Detection determines the specific location of the charged device.