CN207868878U - wireless rechargeable battery - Google Patents

Abstract

A wireless rechargeable battery includes a casing, a power storage body, a coil and a controller. The housing has a first end cover and a second end cover that are spaced apart, and has a side wall extending from the first end cover to the second end cover. The first end cap, the second end cap and the side wall jointly form an accommodation space, and the first end cap includes a positive terminal electrode and the second end cap includes a negative terminal electrode. The electricity storage body is arranged in the accommodation space and is electrically connected to one of the positive terminal electrode and the negative terminal electrode. The coil is arranged around the electric storage body to sense changes in the environmental magnetic field to generate electricity. The controller is installed in the accommodation space and is electrically connected to the other of the positive terminal electrode and the negative terminal electrode, the power storage body and the coil, and selectively controls the supply of electric power to the power storage body according to the amount of electricity stored in the power storage body. .

Description

wireless rechargeable battery

【Technical field】

The utility model relates to a battery, in particular to a wireless rechargeable battery.

【Background technique】

Nowadays, the use of portable electronic devices such as cameras and mobile phones has been deeply rooted in people's lives. With the rapid development of electronic technology, the types and functions of electronic devices are becoming more and more diverse, and the demand for battery power is also increasing dramatically. Since the storage capacity of the primary battery is generally limited and must be discarded after the power consumption is exhausted, portable electronic devices mostly use secondary batteries (ie, rechargeable batteries) as power sources for environmental protection. In addition, in order to achieve the convenience of use, a charging technology that does not need to be electrically connected through a charging cable or a charging stand has been developed, that is, a wireless charging technology.

Wireless charging is based on the principle that a coil induces a change in the magnetic field to generate electricity, so the wireless charging battery contains a coil. In the conventional wireless rechargeable battery, the coils are mostly arranged around the circuit board to connect to the circuit board, and the available space is quite narrow, so the number of coil turns that can be provided is limited, making it difficult to improve the efficiency of wireless charging.

【Content of utility model】

In order to solve the above problems, the utility model provides a wireless rechargeable battery.

A wireless rechargeable battery disclosed in an embodiment of the present invention includes a casing, a storage body, a coil and a controller. The casing has a first end cover and a second end cover arranged at intervals, and has a side wall extending from the first end cover to the second end cover. The first end cover, the second end cover and the side wall jointly form an accommodating space, and the first end cover includes a positive terminal electrode and the second end cover includes a negative terminal electrode. The accumulator is arranged in the accommodation space and is electrically connected to one of the positive terminal electrode and the negative terminal electrode. The coil is arranged around the accumulator to generate electricity by inducing changes in the ambient magnetic field. The controller is installed in the accommodation space, electrically connected to the other of the positive terminal electrode and the negative terminal electrode, the storage body and the coil, and selectively controls the supply of power to the storage body according to the storage capacity of the storage body .

In the wireless rechargeable battery disclosed in an embodiment of the present invention, the coil is disposed on the inner surface of the side wall of the housing.

In the wireless rechargeable battery disclosed in an embodiment of the present utility model, the coil is arranged on the outer surface of the side wall of the casing, the side wall has at least one opening, and the two ends of the coil extend to the container through the at least one opening. The placement space, and the wireless rechargeable battery further includes an outer coating covering the outer surface of the side wall.

In the wireless rechargeable battery disclosed in an embodiment of the present invention, the side wall of the casing includes an inner wall and an outer wall, the inner wall is closer to the accommodation space than the outer wall, and a cavity is formed between the inner wall and the outer wall, and the coil It is arranged in the cavity, and the two ends of the coil extend from the cavity to the accommodating space.

According to the wireless rechargeable battery disclosed in the above embodiments, the area and the number of turns of the coil can be increased through the coil structure surrounding the storage body, thereby improving the efficiency of converting the induced magnetic field change into electric power.

The above description of the content of the present invention and the following description of the implementation are used to demonstrate and explain the principle of the present invention, and provide further explanation of the patent application scope of the present invention.

【Description of drawings】

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the present invention. For some embodiments of the present invention, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

FIG. 1 is a functional block diagram of a wireless rechargeable battery according to an embodiment of the present invention;

FIG. 2 is a partial functional block diagram of a wireless rechargeable battery according to another embodiment of the present invention;

FIG. 3A is an assembled perspective view of a wireless rechargeable battery according to an embodiment of the present invention;

FIG. 3B is a schematic cross-sectional view of the wireless rechargeable battery shown in FIG. 3A;

3C is a schematic cross-sectional view of a wireless rechargeable battery according to another embodiment of the present invention;

3D is a schematic cross-sectional view of a wireless rechargeable battery according to yet another embodiment of the present invention;

3E is a schematic cross-sectional view of a wireless rechargeable battery according to yet another embodiment of the present invention;

FIG. 4 is a functional block diagram of a wireless rechargeable battery and a wireless charger according to an embodiment of the present invention.

【Symbol Description】

1. 1’ wireless rechargeable battery;

11 housing;

111 first end cap;

113 second end cap;

115 side walls;

117 accommodation space;

1111 positive electrode;

1131 negative terminal electrode;

12 accumulator;

13 coils;

14 controller;

15 communication circuit;

16 rectifiers;

17 DC/DC converter;

2, 2’, 2’’, 2’’’ wireless rechargeable battery;

20 circuit boards;

21 outer cladding;

1151, 1159 openings;

1153 inner side wall;

1155 outer side wall;

1157 cavities;

1161 clearance;

3 wireless charger;

31 AC/DC converter;

32 drives;

33 controller;

34 Voltage/current detector.

【Detailed ways】

The detailed features and advantages of the present utility model are described in detail below in the implementation manner, and its content is enough to make any person familiar with the related art understand the technical content of the present utility model and implement it accordingly, and according to the content disclosed in this specification, the scope of patent application and According to the drawings, anyone familiar with the related art can easily understand the purpose and advantages of the utility model. The following examples are to further describe the viewpoints of the utility model in detail, but not to limit the scope of the utility model in any way.

Please refer to FIG. 1 , which is a functional block diagram of a wireless rechargeable battery according to an embodiment of the present invention. As shown in FIG. 1 , in this embodiment, a wireless rechargeable battery 1 includes a casing 11 , a storage body 12 , a coil 13 and a controller 14 . The casing 11 has a first end cover 111 and a second end cover 113 arranged at intervals, and has a side wall 115 extending from the first end cover 111 to the second end cover 113, so that the first end cover 111, the second end cover 113 The cover 113 and the side wall 115 together form an accommodating space 117 , wherein the first end cover 111 includes a positive terminal electrode 1111 and the second end cover 113 includes a negative terminal electrode 1131 . Both the electric storage body 12 and the controller 14 are accommodated in the accommodation space 117 of the housing 11 , and the coil 13 is disposed around the electric storage body 21 , and the installation position of the coil 13 will be described in detail in the following embodiments.

Areas of the housing 11 other than the positive electrode 1111 and the negative electrode 1131 made of metal are, for example, made of plastic, or the areas other than the electrodes are electrically isolated from the electrodes. The electric storage body 12 is electrically connected to the negative terminal electrode 1131 of the housing 11 , and the electric storage body 12 is, for example, a nickel-metal hydride battery, a lithium battery or other secondary batteries. The coil 13 is used to sense the change of the environmental magnetic field to generate power and transmit it to the controller 14 . The controller 14 is, for example, a control circuit, which detects the storage amount of the electric storage body 12 and controls electric power to be selectively supplied to the electric storage body 12 according to the storage amount. In more detail, when the controller 14 judges that the storage capacity of the storage body 12 is less than the threshold power, the controller 14 will provide power to the storage body 12; otherwise, when the controller 14 determines that the storage capacity of the storage body 12 is greater than the threshold When the power is low, the controller 14 will stop providing power to the storage body 12 . For example, the controller 14 includes a switch. When the controller 14 judges that the storage capacity of the storage body 12 is greater than or equal to the first threshold capacity, such as 100%, the switch will cut off the circuit to avoid overcharging. .

In the above-mentioned embodiment, the electric storage body 12 is electrically connected to the negative terminal electrode 1131 and the controller 14 is connected to the positive terminal electrode 1111 as an example, but the electric storage body 12 can also be connected to the positive terminal electrode 1111 and the controller is connected to the Negative terminal electrode 1131 .

Next, please refer to FIG. 2 . FIG. 2 is a partial functional block diagram of a wireless rechargeable battery 1' according to another embodiment of the present invention. As shown in Figure 2, in this embodiment, the wireless rechargeable battery 1' includes a communication circuit in addition to the case 11, the storage body 12, the coil 13 and the controller 14 described in the embodiment of Figure 1 15. A rectifier 16 and a DC/DC converter 17. The description and connection relation of the casing 11, the electric storage body 12, the coil 13 and the controller 14 are the same as those of the embodiment in FIG.

In detail, the communication circuit 15 is accommodated in the accommodation space 117 of the housing 11 and electrically connected to the controller 14 . The controller 14 generates a notification signal according to the storage capacity of the storage body 12, and controls the communication circuit 15 to send the notification signal, wherein the notification signal can indicate the actual value of the storage capacity of the storage body 12, or indicate the state of the storage capacity . For example, when the controller 14 determines that the storage capacity of the storage body 12 is 50%, it will control the communication circuit 15 to send a notification signal containing the information of the storage capacity of 50%. To give another example, when the controller 14 judges that the storage capacity of the storage body 12 is greater than or equal to the first threshold power, for example, 100%, the notification signal sent will indicate that the charging has been completed, and when the controller 14 determines that the storage capacity of the storage body 12 is When the storage capacity is less than or equal to the second threshold, for example, 20%, the notification signal indicates that the power is about to be exhausted. The above examples are all illustrative examples, and are not intended to limit the information included in the notification signal of the present invention.

The rectifier 16 is accommodated in the accommodating space 117 of the housing 11 and electrically connected to the coil 13 and the controller 14, and the DC/DC converter 17 is also accommodated in the accommodating space 117 of the housing 11, and It is electrically connected to the rectifier 16 , the controller 14 and the storage body 12 . The rectifier 16 rectifies the power from the coil 13 , converts the AC power into a DC power, and transmits it to the DC/DC converter 17 . The DC/DC converter 17 transforms the received power and supplies it to the power storage body 12 . The controller 14 detects the storage capacity of the storage body 12 and selectively turns off the rectifier 16 or the DC/DC converter 17 accordingly. In detail, when the storage capacity of the storage body 12 is greater than the first threshold, the controller 14 will turn off the rectifier 16 or the DC/DC converter 17 to stop the power supply to the storage body 12 to avoid overcharging.

In addition, one or more of the above-mentioned controller 14 , communication circuit 15 , rectifier 16 and DC/DC converter can be realized by circuit, and integrated on a circuit board and disposed in the casing 11 .

Next, please refer to FIGS. 3A-3E . Fig. 3A is a combined perspective view of the wireless rechargeable battery 2 according to an embodiment of the present invention; Fig. 3B is a schematic cross-sectional view of the wireless rechargeable battery 2 shown in Fig. 3A; Fig. 3C is according to another embodiment of the present invention The schematic cross-sectional view of the wireless rechargeable battery 2' is shown. FIG. 3D is a schematic cross-sectional view of a wireless rechargeable battery 2'' according to another embodiment of the present invention, and FIG. 3E is according to another embodiment of the present invention. The schematic cross-sectional view of the wireless rechargeable battery 2 ″ is shown. As shown in Figures 3A-3E, the wireless rechargeable batteries 2, 2', 2'' and 2''' include the casing 11, the storage body 12, the coil 13, and the controller 14 as described in the above embodiments. And the circuit board 20 of one or more of the communication circuit 15, the rectifier 16 and the DC/DC converter.

As shown in Figure 3A, the shape of the casing 11 is cylindrical as an example, and the casing 11 can be the appearance of a traditional No. 1, 2, 3 or 4 battery. In addition, the casing 11 can also be in the shape of a square, such as Like the appearance of the 9V battery, the appearance design of the housing of the wireless rechargeable battery of the present invention is not limited to the above.

In the embodiment shown in FIGS. 3A and 3B , the accumulator 12 , the coil 13 and the circuit board 20 of the wireless rechargeable battery 2 are arranged in the housing space 117 of the housing 11 , and the accumulator 12 is electrically connected to the housing. The negative terminal electrode 1131 of 11 and the circuit board 20 are electrically connected to the positive terminal electrode 1111 of the casing 11 . The coil 13 surrounds the power storage body 12 and is disposed on the inner surface of the side wall 115 of the casing 11 . Both ends of the coil 13 are electrically connected to the controller 14 or the rectifier 16 integrated on the circuit board 20 .

In the embodiment shown in FIG. 3C , the electric storage body 12 and the circuit board 20 are arranged in the accommodation space 117 of the casing 11, and the coil 13 is arranged on the outer surface of the side wall 115 of the casing 11 and surrounds the electric storage. The body 12 and the side wall 115 have at least one opening 1151 , and the two ends of the coil 13 can pass through the opening 1151 to extend from the outside of the casing 11 into the accommodating space 117 to be electrically connected to the circuit board 20 . In this embodiment, the wireless rechargeable battery 2' further includes an outer covering layer 21 to cover the outer surface 1 of the side wall 115 of the casing 1 and the coil 13 located on the outer surface, so as to prevent the coil 13 from being damaged by external force. Wherein the outer covering layer 21 can be a film made of plastic or other non-conductive materials, and the utility model is not limited thereto.

Furthermore, in the embodiment shown in FIGS. 3D and 3E , the sidewall 115 of the casing 11 of the wireless rechargeable battery 2 ″ and 2 ″ includes an inner sidewall 1153 and an outer sidewall 1155 , and the inner sidewall 1153 is closer to the outer sidewall 1155 In the accommodating space 117 , a cavity 1157 is formed between the inner wall 1153 and the outer wall 1155 . The coils 13 of the wireless rechargeable batteries 2 ″ and 2 ″ are disposed in the cavity 1157 , and both ends of the coil 13 extend from the cavity 1157 into the accommodating space 117 to be electrically connected to the circuit board 20 . As shown in FIG. 3D , in this embodiment, the inner wall 1153 of the casing 11 has at least one opening 1159 , so that both ends of the coil 13 can extend from the cavity 1157 to the accommodating space 117 through the opening 1159 . In the embodiment shown in FIG. 3E , there is a gap 1161 between the inner side wall 1153 of the housing 11 and the first end cover 111, so that the two ends of the coil 13 can extend from the cavity 1157 to the accommodation through the gap 1161. Space 117.

In the above-mentioned embodiments of FIGS. 3A-3E , the electric storage body 12 is electrically connected to the negative terminal electrode 1131 and the controller 14 is connected to the positive terminal electrode 1111 as an example. However, the electric storage body 12 can also be connected to the positive terminal electrode. 1111 and the controller is connected to the negative terminal electrode 1131 .

Next, please refer to FIG. 4 , which is a functional block diagram of a wireless rechargeable battery and a wireless charger according to an embodiment of the present invention. In FIG. 4, the wireless rechargeable battery 1' is the same as the wireless rechargeable battery 1' in the embodiment shown in FIG. This will not be repeated here. In addition, the wireless rechargeable battery 1 shown in FIG. 1 is also applicable to the embodiment shown in FIG. 4 .

As shown in FIG. 4 , the wireless charger 3 includes an AC/DC converter 31 , a driver 32 , a controller 33 , a voltage/current detector 34 and a coil 35 . The AC/DC converter 31 is electrically connected to the driver 32 , the driver 32 is electrically connected to the controller 33 and the coil 35 , and the voltage/current detector 34 is electrically connected to the controller 33 and the coil 35 . The AC/DC converter 31 receives power from an external power source, converts it and transmits it to the driver 32, and the driver 32 transmits the converted power to the wireless battery through the electromagnetic induction between the coil 35 and the coil 12 of the wireless rechargeable battery 1'. Rechargeable battery 1'. The controller 33 of the wireless charger 3 controls the power transmitted by the driver 32 according to the voltage or current of the coil 35 detected by the voltage/current detector 34 .

According to the wireless rechargeable battery of the above-mentioned embodiment, through the coil structure surrounding the storage body, the installation area and the number of turns of the coil can be increased, thereby improving the efficiency of converting the induced magnetic field change into electric power.

Although the utility model is disclosed above with the above-mentioned preferred embodiments, it is not intended to limit the utility model. Anyone who is familiar with similar skills can make some changes and changes without departing from the spirit and scope of the utility model. Therefore, the scope of patent protection of this utility model shall be defined in the scope of patent application attached to this specification.

Claims (8)

1. a kind of wireless charging battery, including：

One shell has a spaced first end cover and a second end cover, and is extended by the first end cover with one side wall To the second end cover, an accommodating space is collectively formed by the first end cover, the second end cover and the side wall, the first end cover packet Include a negative end electrode containing a positive end electrode and the second end cover；

One power storage body is set in the accommodating space, and is electrically connected at the positive end electrode and the one of the negative end electrode；

One coil, setting surround the power storage body, an electric power are generated to induced environment changes of magnetic field；And

One controller is set in the accommodating space, is electrically connected at another one, the storage of the positive end electrode and the negative end electrode Electric body and the coil, a charge capacity of the controller according to the power storage body, control the electric power and are optionally supplied to the power storage body.

2. wireless charging battery as described in claim 1, the wherein coil are set to an inner surface of the side wall of the shell.

3. wireless charging battery as described in claim 1, the wherein coil are set to an outer surface of the side wall of the shell, The side wall has an at least trepanning, and the both ends of the coil extend to the accommodating space, and the wireless charging through an at least trepanning Battery further includes the outer surface that an outer covering layer coats the side wall.

4. wireless charging battery as described in claim 1, the wherein side wall of the shell include a madial wall and a lateral wall, The madial wall, close to the accommodating space, and forms a cavity compared with the lateral wall between the madial wall and the lateral wall, which sets It is placed in the cavity, and the both ends of the coil extend to the accommodating space from the cavity.

5. wireless charging battery as claimed in claim 4, the wherein madial wall have an at least trepanning, the both ends of the coil Through this, at least a trepanning extends to the accommodating space from the cavity.

6. between wireless charging battery as claimed in claim 4, the wherein madial wall and the first end cover or the second end cover With a gap, the both ends of the coil extend to the accommodating space through the gap from the cavity.

7. wireless charging battery as described in claim 1 further includes the accommodating space that a communicating circuit is placed in the shell In, and it is electrically connected at the controller, which generates a notice signal according to the charge capacity, and the communicating circuit sends and is somebody's turn to do Notify signal.

8. wireless charging battery as described in claim 1, further includes：

One rectifier is placed in the accommodating space of the shell, and is electrically connected at the coil and the controller；And

One DC-DC converter is placed in the accommodating space of the shell, and is electrically connected at the rectifier, the control Device and the power storage body provide the rectified and transformed electric power to the power storage body；

The wherein charge capacity of the controller according to the power storage body, selectively ends the rectifier or the DC/DC conversion Device.