CN210516456U - Flexible wireless pad that charges - Google Patents
Flexible wireless pad that charges Download PDFInfo
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- CN210516456U CN210516456U CN201921063395.4U CN201921063395U CN210516456U CN 210516456 U CN210516456 U CN 210516456U CN 201921063395 U CN201921063395 U CN 201921063395U CN 210516456 U CN210516456 U CN 210516456U
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Abstract
The utility model discloses a flexible wireless pad that charges, include: the flexible PCB comprises a flexible substrate, a flexible PCB embedded in the flexible substrate and liquid metal electrically connected with the flexible PCB; the flexible substrate is internally provided with a plurality of cavities for containing the liquid metal, and the cavities are distributed in an array. The liquid metal may vary with the shape of the cavity, i.e. may be bent or even folded. Both the flexible substrate and the flexible PCB board may be bent and deformed, so that the entire flexible wireless charging mat may be bent or even folded. And the portable charging device is convenient to clean and carry, and can charge a plurality of different electronic devices.
Description
Technical Field
The utility model belongs to the technical field of the wireless technique of charging and specifically relates to a flexible wireless pad that charges.
Background
With the trend of people to simple life, when facing office table tops, desks, dining tables and conference tables, redundant power lines and data lines can be entangled and disordered, the efficiency is influenced, and boring emotions are generated; on the other hand, the mobile phone becomes an unavailable part in our lives, which is indispensable to both lives and work, but at the same time, the embarrassment situation of low battery level also occurs, and especially when we are engaged in activities outside, it is important to keep the mobile phone sufficiently charged. And people can not carry the charger with them because of the trouble and inconvenience.
Wireless charging, also known as inductive charging or non-contact inductive charging, is a device that uses near-field induction, i.e., inductive coupling, to transfer energy from a power supply device (charger) to the electricity being used. Generally, a wireless charger has a coil therein, which is driven by alternating current to generate an alternating current electromagnetic field, and another coil in an electric device receives the alternating current electromagnetic field and converts it into electric energy, and the received electric energy is used for charging a battery in the device to supply power to the device. The situation is equivalent to putting the primary coil and the secondary coil of the transformer into the charger and the electric device respectively.
Among the prior art, wireless charging adopts the copper line to be inductance coils, can reach basic demand of charging, but the copper line is harder, and the space that needs is big, is difficult for carrying, and difficult cyclic utilization has restricted wireless application place that charges to a certain extent.
Accordingly, the prior art is yet to be improved and developed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a flexible wireless pad that charges, aim at solving among the prior art the harder inconvenient problem of using of inductance coil.
The utility model provides a technical scheme that technical problem adopted as follows:
a flexible wireless charging mat, wherein it comprises: the flexible PCB comprises a flexible substrate, a flexible PCB embedded in the flexible substrate and liquid metal electrically connected with the flexible PCB; the flexible substrate is internally provided with a plurality of cavities for containing the liquid metal, and the cavities are distributed in an array.
The flexible wireless charging mat, wherein the flexible substrate comprises: the flexible PCB comprises a first substrate wrapping the liquid metal and a second substrate wrapping the first substrate and the flexible PCB.
The flexible wireless charging pad is characterized in that a plurality of flexible convex frames are arranged on the front face of the second substrate, and the flexible convex frames correspond to the cavities one to one.
The flexible wireless charging pad, wherein, the first basement back is provided with and is used for increasing the magnetism separator piece of liquid metal's magnetic field intensity.
The flexible wireless charging pad, wherein, the front of second basement is provided with the bed of cloth.
The flexible wireless charging pad is characterized in that the flexible substrate is rectangular, and the plurality of cavities are distributed in a rectangular array.
The flexible wireless charging pad is characterized in that the flexible substrate is circular or circular, and a plurality of cavities are distributed on the edge of the flexible substrate in a circular array.
The flexible wireless charging pad, wherein the cavity is a spiral cavity.
The flexible wireless charging pad, wherein the liquid metal is electrically connected to the PCB board from both ends of the spiral cavity.
The flexible wireless charging pad, wherein, it still includes: a plug electrically connected to the flexible PCB, the plug being located outside the flexible substrate.
Has the advantages that: the liquid metal may vary with the shape of the cavity, i.e. may be bent or even folded. Both the flexible substrate and the flexible PCB board may be bent and deformed, so that the entire flexible wireless charging mat may be bent or even folded. And the portable charging device is convenient to clean and carry, and can charge a plurality of different electronic devices.
Drawings
Fig. 1 is a schematic diagram of a first structure of a middle flexible wireless charging mat according to the present invention.
Fig. 2 is a cross-sectional view of the middle flexible wireless charging mat of the present invention.
Fig. 3 is a second schematic structural diagram of the middle flexible wireless charging mat of the present invention.
Fig. 4 is a third structural schematic diagram of the middle flexible wireless charging mat of the present invention.
Fig. 5 is a schematic view of a first structure of the liquid metal of the present invention.
Fig. 6 is a second schematic diagram of the liquid metal of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-6, the present invention provides some preferred embodiments of a flexible wireless charging mat.
As shown in fig. 1 and 2, the flexible wireless charging mat includes: the flexible PCB comprises a flexible substrate 10, a flexible PCB 20 embedded in the flexible substrate 10 and liquid metal 30 electrically connected with the flexible PCB 20; a plurality of cavities for containing the liquid metal 30 are arranged in the flexible substrate 10, and the cavities are distributed in an array. The PCB 20 is integrated with electronic devices such as filtering, rectifying and transforming devices, which can provide AC power to the liquid metal 30 in the cavities. The liquid metal 30 is a room temperature liquid metal having: mercury, amalgam, gallium, or gallium alloy.
It should be noted that the liquid metal 30 is amorphous, and is of course confined to the cavity in the present invention, the shape of the liquid metal 30 is identical to the shape of the cavity, and the liquid metal 30 can be changed with the change of the shape of the cavity, that is, can be bent or even folded. Both the flexible substrate 10 and the flexible PCB board 20 may be bent and deformed so that the entire flexible wireless charging mat may be bent or even folded. And the portable charging device is convenient to clean and carry, and can charge a plurality of different electronic devices.
Furthermore, the utility model provides a cavity has a plurality of, can realize a plurality of while of treating the battery charging outfit to charge, and the cavity is array distribution, and this kind of array distribution of course is relevant with the distribution of treating the battery charging outfit, respectively treats the battery charging outfit on desk top, desk, dining table, conference table and distributes with the array form usually, consequently, a plurality of cavity also is with array distribution, also is that circular array distributes the edge of flexible basement 10.
Specifically, for example, when the flexible wireless charging mat is used for a dining table, the dining table is usually rectangular (as shown in fig. 4), circular (as shown in fig. 3), and accordingly, the flexible wireless charging mat can be arranged in a rectangular, circular or circular ring shape, where the circular ring shape is for the case that a rotating disk for rotating a dish is provided on the circular dining table, and the through hole in the circular ring is used for avoiding the rotating disk. As shown in fig. 3, a number of cavities are arranged in a circular array. As shown in fig. 4, there are two rows of seats on the rectangular dining table, and of course there are four rows of seats on the square dining table, so that the plurality of cavities may be arranged in a rectangular array of two or four rows, i.e. in a rectangular array. The liquid metal 30 in each cavity on the table can be used for charging a mobile phone or a heatable/refrigeratable dish, and the dish converts electric energy into heat energy/cold energy to keep the temperature of the dish.
When the flexible wireless charging pad is used for a desk, the desk is usually rectangular, office supplies such as a computer (or a notebook computer, a tablet personal computer), a keyboard, a mouse, a desk lamp and the like are placed on the desk, and devices such as a water cup, a mobile phone and the like can be placed on the desk, wherein the supplies or the devices can be charged by the wireless charging pad, and the water cup, the keyboard, the mouse and the mobile phone need to be placed at a position close to a seat to form a water cup area 43, a keyboard area 44, a mouse area 45 and a mobile phone area 46 which are arranged in a row; the desk lamp and the computer need to be placed at a place far away from the seat to form a desk lamp area 41 and a computer area 42 which are arranged in a row, then a plurality of cavities can be arranged in an array of two rows, and the number and the position of each area can be adjusted according to the needs. Certainly, when different articles or devices are used, cavities with different sizes can be adopted, so that the charging power of the liquid metal 30 is different, for example, when a computer is charged, a large charging power is required to be used for charging, and a mouse is charged by a small charging power.
In a preferred embodiment of the present invention, referring to fig. 1 and 3, the cavity is a spiral cavity. The liquid metal 30 is electrically connected to the PCB board 20 from both ends of the spiral cavity. Specifically, as shown in fig. 1, two ends of the spiral cavity are respectively located at the center and the periphery and are respectively connected with two poles of a power supply. Of course, the cavity may be provided in other shapes, such as a serpentine shape as shown in FIG. 5, in which case the two ends of the serpentine cavity are located on either side. As shown in fig. 6, the double-spiral cavity has two ends located at the periphery.
In a preferred embodiment of the present invention, referring to fig. 1-2, the flexible substrate 10 includes: a first substrate 11 wrapping the liquid metal 30, and a second substrate 12 wrapping the first substrate 11 and the flexible PCB board 20. The first substrate 11 and the second substrate 12 may be made of the same material or different materials, and specifically, the following materials may be selected: PDMS, silica gel, rubber and polyurethane, which are nontoxic and pollution-free, harmless to human body and simple and safe in manufacturing process.
Specifically, when the flexible wireless charging pad is manufactured, the liquid metal 30 is filled in the cavity of the first substrate 11, and then the flexible PCB 20 and the first substrate 11 filled with the liquid metal 30 are encapsulated by using a flexible polymer encapsulating material to obtain the flexible wireless charging pad, the flexible polymer encapsulating material forms the second substrate 12, and the first substrate 11 and the second substrate 12 form the flexible substrate 10.
In preparing the first substrate 11, the cavity may be a groove disposed on the first substrate 11 or a channel embedded in the first substrate 11, and the liquid metal 30 may be injected by a syringe to fill the groove or the channel. Although the grooves have openings and the channels have inlets and outlets, the grooves or channels are closed to form closed cavities after the second substrate 12 is placed, which prevents leakage of the liquid metal 30 and facilitates recovery of the liquid metal 30. When the second substrate 12 is formed by encapsulation, the first substrate 11 is disposed close to the front surface of the second substrate 12, that is, the distance between the front surfaces of the first substrate 11 and the second substrate 12 is smaller than the distance between the back surfaces of the first substrate 11 and the second substrate 12, so that the liquid metal 30 can be closer to the electronic device, which is beneficial to charging.
In a preferred embodiment of the present invention, please refer to fig. 1 and fig. 3, a plurality of flexible protruding frames 40 are disposed on the front surface of the second substrate 12, and the flexible protruding frames 40 correspond to the cavities one by one.
Specifically, since the liquid metal 30 is enclosed in the cavity, it is difficult to see the specific position of the liquid metal 30 from the outside (unless the transparent flexible substrate 10 is used), which easily causes the problem that the position is misaligned and not electrified, and therefore, a plurality of flexible convex frames 40 are provided on the front surface (i.e., the upper surface) of the second substrate 12, and the flexible convex frames 40 may be made of the same material as the first substrate 11 and integrally formed. As shown in FIG. 1, the flexible frame 40 may be a break-point frame, but may be a continuous frame as shown in FIG. 3. The position of the cavity (or liquid metal 30) can be quickly and accurately located by the raised frame, so that the device can be placed in the flexible raised frame 40 and charged. Of course, the size of the convex frame can be set to be smaller to support the electronic device, so that the electronic device is prevented from being overheated in the charging process, and the heat cannot be dispersed in time.
In a preferred embodiment of the present invention, the back surface of the first substrate 11 is provided with a magnetic shielding sheet (not shown) for increasing the magnetic field strength of the liquid metal 30.
Specifically, the magnetism-isolating sheet can enhance the magnetic field intensity of the coil, has a high magnetic convergence effect, can prevent the attenuation interference of a metal conductor to the magnetic field, plays a role in metal isolation, prevents energy waste, and improves the charging efficiency. Specifically, as shown in fig. 2, the dotted arrow in fig. 2 is a magnetic field direction, and the magnetic shielding sheet emits the magnetic line to the front surface of the flexible wireless charging pad.
In a preferred embodiment of the present invention, the front surface of the second substrate 12 is provided with a cloth layer (not shown).
In particular, when the flexible wireless charging mat is applied to a dining table, generally, a tablecloth is disposed on the dining table. In this embodiment, a cloth layer is disposed on the front surface of the second substrate 12 to form the tablecloth, where the cloth layer may be fixedly disposed on the second substrate 12. Of course, for ease of removal and cleaning, the layer of cloth is disposed only on the front side of the second substrate 12 and is not fixedly attached to the second substrate 12. When the front surface of the second substrate 12 is provided with the flexible convex frame 40, the cloth layer is located above the flexible convex frame 40.
In a preferred embodiment of the present invention, as shown in fig. 1, the flexible wireless charging pad further includes: and a plug 50 electrically connected to the flexible PCB board 20, wherein the plug 50 is located outside the flexible substrate 10. Specifically, one plug 50 may be employed to wirelessly charge multiple devices.
To sum up, the utility model provides a flexible wireless pad that charges, include: the flexible PCB comprises a flexible substrate, a flexible PCB embedded in the flexible substrate and liquid metal electrically connected with the flexible PCB; the flexible substrate is internally provided with a plurality of cavities for containing the liquid metal, and the cavities are distributed in an array. The liquid metal may vary with the shape of the cavity, i.e. may be bent or even folded. Both the flexible substrate and the flexible PCB board may be bent and deformed, so that the entire flexible wireless charging mat may be bent or even folded. And the portable charging device is convenient to clean and carry, and can charge a plurality of different electronic devices.
It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. A flexible wireless charging mat, comprising: the flexible PCB comprises a flexible substrate, a flexible PCB embedded in the flexible substrate and liquid metal electrically connected with the flexible PCB; the flexible substrate is internally provided with a plurality of cavities for containing the liquid metal, and the cavities are distributed in an array.
2. The flexible wireless charging mat of claim 1, wherein the flexible substrate comprises: the flexible PCB comprises a first substrate wrapping the liquid metal and a second substrate wrapping the first substrate and the flexible PCB.
3. The flexible wireless charging mat according to claim 2, wherein a plurality of flexible convex frames are arranged on the front surface of the second substrate, and the flexible convex frames correspond to the cavities one to one.
4. The flexible wireless charging pad according to claim 2, wherein the first substrate is provided at a rear surface thereof with a magnetic shielding sheet for increasing a magnetic field strength of the liquid metal.
5. The flexible wireless charging mat according to claim 4, wherein the front side of the second substrate is provided with a layer of cloth.
6. The flexible wireless charging mat according to claim 1, wherein the flexible substrate is rectangular and a plurality of the cavities are distributed in a rectangular array.
7. The flexible wireless charging mat according to claim 1, wherein the flexible substrate is circular or circular, and a plurality of the cavities are distributed on the edge of the flexible substrate in a circular array.
8. The flexible wireless charging mat of claim 1, wherein the cavity is a spiral cavity.
9. The flexible wireless charging mat according to claim 8, wherein the liquid metal is electrically connected to the PCB board from both ends of the spiral cavity.
10. The flexible wireless charging mat according to claim 1, further comprising: a plug electrically connected to the flexible PCB, the plug being located outside the flexible substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921063395.4U CN210516456U (en) | 2019-07-09 | 2019-07-09 | Flexible wireless pad that charges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921063395.4U CN210516456U (en) | 2019-07-09 | 2019-07-09 | Flexible wireless pad that charges |
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| Publication Number | Publication Date |
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| CN210516456U true CN210516456U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921063395.4U Active CN210516456U (en) | 2019-07-09 | 2019-07-09 | Flexible wireless pad that charges |
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| CN (1) | CN210516456U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112271787A (en) * | 2020-11-06 | 2021-01-26 | 广东长柏电器实业有限公司 | Wireless charging combination device and system for household appliances |
-
2019
- 2019-07-09 CN CN201921063395.4U patent/CN210516456U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112271787A (en) * | 2020-11-06 | 2021-01-26 | 广东长柏电器实业有限公司 | Wireless charging combination device and system for household appliances |
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