CN214590783U

CN214590783U - Charging equipment and charging system

Info

Publication number: CN214590783U
Application number: CN202120667044.5U
Authority: CN
Inventors: 杨军; 万世铭; 曲春营; 张加亮
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-02
Anticipated expiration: 2031-03-31

Abstract

Embodiments of the present application provide a charging device and a charging system. The charging device includes: a casing; a charging module disposed in the casing, the charging module including a wireless transmitting coil and a first magnet connected to each other; Two magnets are arranged in the casing, and there is an acting force between the second magnet and the first magnet, so that the first magnet and the wireless transmitting coil are suspended in the casing. In this embodiment of the present application, the interconnected wireless transmitting coil and the first magnet can be suspended in the housing through the second magnet. By changing the magnetic field around the first magnet, the first magnet and the wireless transmitting coil can be easily driven to move, so as to improve the The charging area of the charging device. No complicated mechanical structure is required to drive, the structure is simple and the drive is convenient.

Description

Charging equipment and charging system

Technical Field

The application relates to the technical field of electronics, especially, relate to a battery charging outfit and charging system.

Background

At present, a conventional wireless charging scheme which is not adsorbable and cannot be automatically aligned is generally adopted in a wireless charging mode. Specifically, the charging base includes wireless transmitting coil, and the equipment of waiting to charge includes wireless receiving coil, when carrying out wireless charging through wireless transmitting coil and wireless receiving coil, wireless transmitting coil and wireless receiving coil need strict alignment. Therefore, when the charging base charges a device to be charged, such as a mobile phone, the mobile phone needs to be placed at a fixed position on the charging base to perform wireless charging. If the placement position of the device to be charged deviates, the wireless charging efficiency is seriously reduced. In the related art, the charging area of the wireless transmitting coil is increased by fixedly arranging a plurality of wireless transmitting coils which are staggered with each other in the charging base.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a battery charging outfit and charging system, wireless transmitting coil suspension is in the casing to drive wireless transmitting coil that can be easy removes, enlarges the area of charging.

The embodiment of the application provides a charging apparatus, it includes:

a housing;

the charging module is arranged in the shell and comprises a wireless transmitting coil and a first magnet which are connected with each other; and

a second magnet disposed within the housing, a force between the second magnet and the first magnet to suspend the first magnet and the wireless transmit coil within the housing.

The embodiment of the present application further provides a charging system, which includes:

the charging equipment is the charging equipment; and

the charging equipment comprises a wireless receiving coil, and the wireless receiving coil and a wireless transmitting coil of the charging equipment can transmit electric energy.

In this application embodiment, can make interconnect's wireless transmitting coil and first magnet suspension in the casing through the second magnet, through changing the peripheral magnetic field of first magnet, the first magnet of drive and wireless transmitting coil that can be convenient remove to improve charging device's the area of charging. The driving of a complex mechanical structure is not needed, the structure is simple, and the driving is convenient.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, wherein like reference numerals represent like parts in the following description.

Fig. 1 is a schematic structural diagram of a charging device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a second charging device according to an embodiment of the present application.

Fig. 3 is a schematic structural view of a second magnet and a first magnet in the charging device shown in fig. 1.

Fig. 4 is a schematic structural diagram of a third charging apparatus according to an embodiment of the present application.

Fig. 5 is a schematic structural view of a wireless transmission coil, a third magnet and a second magnet in the charging device shown in fig. 1.

Fig. 6 is a force-bearing schematic diagram between a wireless transmitting coil of a charging device and a wireless receiving coil of a device to be charged provided by an embodiment of the present application.

Fig. 7 is a schematic structural diagram of a charging system according to an embodiment of the present application.

Fig. 8 is a usage scenario diagram of the device to be charged and the charging device in the charging system shown in fig. 7.

Fig. 9 is another schematic structural diagram of a charging system according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present application.

An embodiment of the present application provides a charging device, please refer to fig. 1, and fig. 1 is a schematic structural diagram of a charging device according to an embodiment of the present application. The charging apparatus 100 includes a housing 120, a charging module 140, and a second magnet 160. The housing 120 may serve as an integral support structure of the charging apparatus 100 for supporting and accommodating the charging module 140 and the second magnet 160. The charging module 140 is disposed in the housing 120, and the charging module 140 includes a first magnet 142 and a wireless transmitting coil 144 connected to each other. The second magnet 160 is disposed within the housing 120 with a force between the second magnet 160 and the first magnet 142 such that the first magnet 142 and the wireless transmitting coil 144 are suspended within the housing 120.

The wireless transmitting coil 144 and the first magnet 142 connected to each other may be suspended in the housing 120 by the second magnet 160, and the first magnet 142 and the wireless transmitting coil 144 may be conveniently driven to move by changing the magnetic field around the first magnet 142 or changing the magnetic field of the first magnet 142, so as to increase the charging area of the charging device 100. The driving of a complex mechanical structure is not needed, the structure is simple, and the driving is convenient.

It is understood that the second magnet 160 may be an electromagnet, and the magnetic field strength of the second magnet 160 may be changed to drive the first magnet 142 to move and drive the charging module 140 to move. In another example, the first magnet 142 may be an electromagnet, and the second magnet 160 is fixedly disposed in the housing 120 by changing the magnetic field strength of the first magnet 142, so that the first magnet 142 moves relative to the second magnet 160 and drives the charging module 140 to move. In another example, another electromagnet or electromagnets may be further disposed in the charging device 100, and the first magnet 142 is driven to move the charging module 140 by controlling the other electromagnet or electromagnets.

The housing 120 has a bottom plate 122 and a supporting plate 124 disposed opposite to the bottom plate 122, and the supporting plate 124 is used for carrying a device to be charged; the second magnet 160 is disposed on the bottom plate 122, and an opposing force is provided between the second magnet 160 and the first magnet 142, so that the charging module 140 is suspended in the housing 120.

When the second magnet 160 and the first magnet 142 are adjacent to each other, the repulsive force between the second magnet 160 and the first magnet 142 is greater than the gravity of the charging module 140, and the second magnet 160 is disposed on the bottom plate 122, so that the first magnet 142 drives the entire charging module 140 away from the second magnet 160, and the charging module 140 is suspended in the housing 120.

Wherein the first magnet 142 includes a first end surface 1422 facing the second magnet 160 and a second end surface 1424 disposed opposite the first end surface 1422, the polarity of the first end surface 1422 and the second end surface 1424 being different; the second magnet 160 includes a third end surface 162 facing the first magnet 142 and a fourth end surface 164 disposed opposite the third end surface 162, the third end surface 162 and the fourth end surface 164 having different polarities; the first end surface 1422 and the third end surface 162 have the same polarity.

The polarities of the opposite end surfaces of the first magnet 142 and the second magnet 160 are the same, and the first magnet 142 and the second magnet 160 are both magnets with upper and lower polarities, so that the first magnet 142 can be well driven by the second magnet 160 to be suspended in the housing 120.

Optionally, in some other embodiments, please refer to fig. 2, and fig. 2 is a schematic diagram of a second structure of the charging device according to the embodiment of the present application. The second magnet 160 may also be disposed on the supporting plate 124, and an attractive force is generated between the second magnet 160 and the first magnet 142, so that the charging module 140 is suspended in the housing 120. The attractive force between the second magnet 160 and the first magnet 142 is greater than the gravity of the charging module 140, and the second magnet 160 is disposed on the support plate 124, so that the first magnet 142 brings the entire charging module 140 close to the second magnet 160, and the charging module 140 is suspended in the housing 120.

The opposite end surfaces of the first magnet 142 and the second magnet 160 have opposite polarities, and the first magnet 142 and the second magnet 160 both have upper and lower polarities, so that the second magnet 160 can well drive the first magnet 142 to be suspended in the housing 120.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a second magnet and a first magnet in the charging device shown in fig. 1. The first magnet 142 generates a magnetic field area smaller than that of the second magnet 160, so that the first magnet 142 can be moved within the magnetic field area of the second magnet 160. The larger the magnetic field area generated by the second magnet 160, the larger the moving range of the first magnet 142, and correspondingly, the larger the charging area of the wireless transmission coil 144.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a charging apparatus according to an embodiment of the present disclosure. The charging module 140 may further include a magnetic shielding structure 146, the magnetic shielding structure 146 being disposed between the first magnet 142 and the wireless transmission coil 144. The magnetic shielding structure 146 may isolate the first magnet 142 and the second magnet 160 from the wireless transmit coil 144. Illustratively, the magnetic shielding structure 146 is a separator made of a magnetic shielding material, wherein the first magnet 142 is disposed between the wireless transmitting coil 144 and the second magnet 160, and the magnetic shielding structure 146 is disposed on a side of the coil facing the first magnet 142. The magnetic shielding structure 146 may perform a magnetic convergence and a magnetic shielding function for the second magnet 160.

In other embodiments, the charging module 140 may also include other structures. For example, the charging module 140 further includes ferrite 148, the ferrite 148 being disposed between the wireless transmitting coil 144 and the magnetic shielding structure 146, the ferrite 148 can function as a magnetic conducting and shielding coil magnet.

The first magnet 142 may be a magnet tray that carries magnetic shielding structures 146, a wireless transmitter coil 144, and the like. The first magnet 142 may also have other configurations, such as an electromagnet carrier plate.

The various components of the charging module 140 may be adhesively attached to each other or attached by other structures. For example, the charging module 140 further includes a bracket 149, and the wireless transmitting coil 144, the magnetic shielding structure 146 and the first magnet 142 are sequentially and fixedly disposed on the bracket 149 to form an integral structure.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a wireless transmitting coil, a third magnet and a second magnet in the charging apparatus shown in fig. 1. The charging device 100 further comprises a third magnet 145, the third magnet 145 being arranged around the circumference of the wireless transmission coil 144. The third magnet 145 may include a plurality of sub-magnets disposed around the circumference of the wireless transmission coil 144, and the third magnet 145 may also have a ring-shaped structure. The force between the first magnet 142 and the second magnet 160 may suspend the wireless transmission coil 144 within the housing 120, and the wireless transmission coil 144 may be driven to move in a direction parallel to the bottom plate 122 by controlling the third magnet 145. It will also be appreciated that the force between the first magnet 142 and the second magnet 160 may suspend the wireless transmission coil 144 in the vertical direction within the housing 120, and the wireless transmission coil 144 may be driven to move in the horizontal direction by controlling the third magnet 145.

Illustratively, when the device to be charged is placed on the support plate 124, the fourth magnet and the third magnet 145 of the device to be charged attract each other, thereby moving the charging module 140 toward the fourth magnet, and the coil position of the device to be charged is set as desired, thereby aligning the wireless receiving coil of the device to be charged and the wireless transmitting coil 144 of the charging device 100.

When the device to be charged is placed at the initial position of the supporting plate 124, the center of the wireless receiving coil 220 of the device to be charged may be deviated from the center of the wireless transmitting coil 144 of the charging device 100, there will be a moment F in the direction shown in fig. 6 between the third magnet 145 around the wireless transmitting coil 144 and the fourth magnet 240 around the wireless receiving coil 220, and there will also be a centripetal moment acting in the horizontal direction to push the center point of the wireless transmitting coil 144 module to be close to the center point of the wireless receiving coil 220, thereby achieving the alignment of the wireless transmitting coil 144 and the wireless receiving coil 220.

It should be noted that, in some other embodiments, when the second magnet 160 and the first magnet 142 are adjacent to each other, the repulsive force between the second magnet 160 and the first magnet 142 is not greater than the gravity of the charging module 140, when the device to be charged is placed on the supporting plate 124, the fourth magnet and the third magnet 145 of the device to be charged are attracted to each other, the sum of the repulsive force between the first magnet 142 and the second magnet 160 and the attractive force between the third magnet 145 and the fourth magnet is greater than the gravity of the charging module 140, so that the charging module 140 is suspended and moves toward the third magnet 145, and the coil position of the device to be charged is set as required so as to be aligned with the wireless transmitting coil 144 of the charging device 100.

It should be noted that the charging apparatus 100 may be a stand-alone apparatus. For example, the charging device 100 may be a wireless charging cradle. For another example, the charging device 100 may be a mobile power supply or the like. The charging device 100 may also be integrated in other devices. For example, the charging apparatus 100 is integrated in an automobile to provide a wireless charging function for the automobile. Also for example, the charging device 100 may be integrated in a household appliance or a mobile device, or the like. Illustratively, the charging device 100 may be integrated in a mobile phone, a tablet computer, a notebook computer, a desktop computer, a all-in-one computer, or a sound device, etc.

Fig. 7 and 8 are combined, fig. 7 is a schematic structural diagram of the charging system provided in the embodiment of the present application, and fig. 8 is a usage scenario diagram of the device to be charged and the charging device in the charging system shown in fig. 7. The charging system 10 includes a charging apparatus 100 and an apparatus to be charged 200. The structure of the charging device 100 may be the structure of the charging device in any of the above embodiments, and is not described herein again. The device to be charged 200 comprises a wireless receiving coil 220, the wireless receiving coil 220 and the wireless transmitting coil 144 of the charging device 100 are capable of transmitting power. The device to be charged 200 and the charging device 100 can realize wireless charging through the wireless transmitting coil 144 and the wireless receiving coil 220.

The charging device 100 may drive the wireless transmitting coil 144 to move according to the position of the wireless receiving coil 220 of the device to be charged 200, so as to align the wireless transmitting coil 144 and the wireless receiving coil 220.

Specifically, the device to be charged 200 further includes a fourth magnet 240, the fourth magnet 240 is connected to the wireless receiving coil 220 or the fourth magnet 240 is disposed around the wireless receiving coil 220, and an attractive force is generated between the fourth magnet 240 and the third magnet 145 of the charging device 100, so that the wireless transmitting coil 144 moves toward the wireless receiving coil 220.

It can be understood that when the third magnet 145 of the charging module 140 is attracted by the fourth magnet 240, because the charging module 140 is suspended in the housing 120, the charging module 140 can easily move toward the fourth magnet 240 without overcoming the resistance force such as gravity, friction, etc., so as to closely align the wireless transmitting coil 144 connected to the third magnet 145 with the wireless receiving coil 220 connected to the fourth magnet 240.

The fourth magnet 240 and the third magnet 145 are shaped to match such that the wireless transmission coil 144 and the wireless reception coil 220 are oppositely disposed. The third magnet 145 is disposed around the periphery of the wireless transmit coil 144 and the fourth magnet 240 may be disposed around the periphery of the wireless receive coil 220 and be shaped to match. The shape matching is not only the same in shape, but also the same or similar in size. For example, the third magnet 145 has a ring shape, the fourth magnet 240 has a ring shape, and the third magnet 145 and the fourth magnet 240 have the same inner and outer diameters. For another example, the third magnet 145 is a plurality of sub-magnets surrounding the wireless transmission coil 144, and the fourth magnet 240 is also a plurality of sub-magnets surrounding the wireless reception coil 220. Because the shapes of the third magnet 145 and the fourth magnet 240 are matched, the third magnet 145 and the fourth magnet 240 can be arranged in a very good right-to-right manner when they are attracted and close to each other, the wireless transmitting coil 144 and the third magnet 145 are fixed in position, the fourth magnet 240 and the wireless receiving coil 220 are fixed in position, and their positions are preset, so that when the third magnet 145 and the fourth magnet 240 are attracted and close to each other, the wireless transmitting coil 144 and the wireless receiving coil 220 can be accurately aligned, and the charging efficiency between the two is improved.

For example, when the device to be charged 200 is placed at the initial position of the supporting plate 124, the center of the wireless receiving coil 220 of the device to be charged 200 may be deviated from the center of the wireless transmitting coil 144 of the charging device 100, there will be a moment F in the direction shown in fig. 6 between the third magnet 145 around the wireless transmitting coil 144 and the fourth magnet 240 around the wireless receiving coil 220, and there will also be a centripetal moment acting in the horizontal direction to push the center point of the wireless transmitting coil 144 module to be close to the center point of the wireless receiving coil 220, so as to achieve the alignment of the wireless transmitting coil 144 and the wireless receiving coil 220.

The end face of the fourth magnet 240 facing the third magnet 145 has a different polarity from the end face of the third magnet 145 facing the fourth magnet 240, and the end face of the fourth magnet 240 facing the third magnet 145 has a different polarity from the end face facing away from the third magnet 145. The fourth magnet 240 and the third magnet 145 may be magnets polarized up and down.

Optionally, please refer to fig. 9, and fig. 9 is another schematic structural diagram of the charging system according to the embodiment of the present application. The fourth and

third magnets

240 and 145 may also be horizontally polarized magnets. Specifically, the third magnet 145 includes a first side 1452 and a second side 1454, the first side 1452 and the second side 1454 have opposite polarities, the fourth magnet 240 includes a third side 242 and a fourth side 244, the third side 242 and the fourth side 244 have opposite polarities, the first side 1452 and the third side 242 are disposed opposite to each other and have opposite polarities, and the second side 1454 and the fourth side 244 are disposed opposite to each other and have opposite polarities.

The device 200 to be charged can be a mobile device, such as a mobile phone, a tablet computer, an electronic book device, and the like, and the device 200 to be charged can also be a wearable device (such as a wireless headset, an intelligent bracelet, intelligent glasses, an intelligent watch, and the like), an audio device, a computer accessory (such as a rechargeable wireless mouse, and the like), an electric toothbrush, a floor sweeping robot, a mobile power source, an electric vehicle, and the like.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The charging device and the charging system provided in the embodiments of the present application are described in detail above, and specific examples are applied in this text to explain the principles and embodiments of the present application, and the description of the above embodiments is only used to help understand the method and the core ideas of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A charging device, comprising:

a housing;

2. The charging device of claim 1, wherein the housing has a bottom plate and a support plate disposed opposite the bottom plate for carrying a device to be charged;

the second magnet is arranged on the bottom plate, and an opposing force is arranged between the second magnet and the first magnet, so that the charging module is suspended in the shell.

3. The charging apparatus according to claim 2, wherein the first magnet includes a first end face facing the second magnet and a second end face disposed opposite to the first end face, the first end face and the second end face having different polarities;

the second magnet comprises a third end surface facing the first magnet and a fourth end surface arranged opposite to the third end surface, and the polarity of the third end surface is different from that of the fourth end surface;

the first end surface and the third end surface have the same polarity.

4. The charging device of claim 1, wherein the housing has a bottom plate and a support plate disposed opposite the bottom plate for carrying a device to be charged;

the second magnet is arranged on the supporting plate, and attractive force exists between the second magnet and the first magnet, so that the charging module is suspended in the shell.

5. The charging device of claim 1, wherein the first magnet generates a magnetic field area that is smaller than a magnetic field area generated by the second magnet.

6. The charging device of claim 1, wherein the charging module further comprises a magnetic shielding structure disposed between the first magnet and the wireless transmission coil.

7. The charging device of any one of claims 1-6, wherein the charging module further comprises a third magnet disposed around a periphery of the wireless transmit coil, the third magnet capable of driving the wireless transmit coil to move within the housing.

8. An electrical charging system, comprising:

a charging device according to any one of claims 1-7; and

9. The charging system of claim 8, wherein the device to be charged further comprises a fourth magnet having an attractive force with a third magnet of the charging device to move the wireless transmitting coil connected to the third magnet toward the wireless receiving coil.

10. The charging system of claim 9, wherein the fourth magnet and the third magnet are shaped to mate the wireless transmit coil and the wireless receive coil in opposing relation.

11. The charging system according to claim 9, wherein an end surface of the fourth magnet facing the third magnet and an end surface of the third magnet facing the fourth magnet are different in polarity, and an end surface of the fourth magnet facing the third magnet and an end surface of the fourth magnet facing away from the third magnet are different in polarity.

12. The charging system of claim 9, wherein the third magnet comprises a first side and a second side, the first side and the second side having opposite polarities, and the fourth magnet comprises a third side and a fourth side, the third side and the fourth side having opposite polarities, the first side and the third side being disposed opposite and having opposite polarities, and the second side and the fourth side being disposed opposite and having opposite polarities.