CN212304819U - Wireless charging device - Google Patents
Wireless charging device Download PDFInfo
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- CN212304819U CN212304819U CN202021205331.6U CN202021205331U CN212304819U CN 212304819 U CN212304819 U CN 212304819U CN 202021205331 U CN202021205331 U CN 202021205331U CN 212304819 U CN212304819 U CN 212304819U
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Abstract
The utility model relates to a wireless charging device, include: a protective housing and a wireless charging pad; the wireless charging panel is provided with two layers of charging coils, and the two layers of charging coils form at least two magnetic field centers on the charging surface of the protection shell; the wireless charging panel is also provided with two mutually independent wireless transmitting modules, and the wireless transmitting modules are connected with the charging coils on the corresponding layers and respectively control the charging of the charging coils on the corresponding layers; still be equipped with master controller and power interface on the wireless charging panel, power interface is used for connecting outside DC power supply and wireless transmitting module, and the master controller is connected with two wireless transmitting module respectively for charge for at least two consumer that have the wireless function of charging. The utility model has the advantages that: the wireless charging receiving position is effectively expanded, so that a user can more easily find the optimal charging position during charging; the two wireless devices can be charged simultaneously, and the charging requirements of multiple devices of a user are met, so that convenience is provided for the user.
Description
Technical Field
The utility model belongs to the technical field of wireless charging, concretely relates to wireless charging device.
Background
With the continuous development of scientific technology, the scientific and technological achievements which are different day by day bring a lot of changes to the lives of people, especially electronic products which are closely related to the work and the life of people, and with the more and more extensive use of electronic equipment in office or daily use, people have more and more external equipment, each equipment is provided with a charging device which is matched with the equipment, although most of chargers of the same type can be universal, for example, chargers of smart phones, the difference of charging effects can exist when the equipment of different types is used, and the conventional wired charging mode is not convenient to use.
With the continuous maturity of the technology, the appearance of wireless charging provides more convenience for people, so that the wireless charging has become a trend of mobile phone charging development in recent years due to rapid development, especially in the smart phone industry. Most of wireless chargers in the existing market adopt a single coil mode, so that a user needs to repeatedly adjust the position of equipment in the wireless charging process to achieve maximum power charging, and the requirement of simultaneous charging of multiple pieces of equipment cannot be met when the multiple pieces of equipment need to be wirelessly charged.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the prior art exists that need adjust the position of charging repeatedly, and can't satisfy the multi-device problem of charging, the utility model provides a wireless charging device, it has the characteristics such as finding the best position of charging easily and satisfying multi-device charging needs.
The utility model discloses the technical scheme who adopts does:
a wireless charging device, comprising: a protective housing and a wireless charging pad;
the wireless charging panel is provided with two layers of charging coils, and the two layers of charging coils form at least two magnetic field centers on the charging surface of the protection shell;
the wireless charging panel is also provided with two mutually independent wireless transmitting modules, and the wireless transmitting modules are connected with the charging coils on the corresponding layers and respectively control the charging of the charging coils on the corresponding layers;
the wireless charging panel is further provided with a master controller and a power interface, the power interface is used for connecting an external direct-current power supply with the wireless transmitting modules, and the master controllers are respectively connected with the two wireless transmitting modules and used for charging at least two electric equipment with a wireless charging function.
Furthermore, the two layers of charging coils are symmetrical in a central axis manner, wherein one layer close to the wireless charging panel comprises three charging coils which are sequentially arranged side by side;
the one deck that is close to the face of charging of protection casing is equipped with two and sets up side by side in proper order the charging coil.
Furthermore, a charging C port connected with the master controller is further arranged on the wireless charging plate, and power is supplied to the outside by adopting an international standard PD + QC3.0 protocol.
Furthermore, a charging port A connected with the master controller is further arranged on the wireless charging plate, and power is supplied to the outside by adopting a QC3.0 standard protocol.
Furthermore, a memory connected with the master controller is further arranged on the wireless charging panel and used for storing data.
Further, the protective housing includes: the wireless charging device comprises an upper shell and a lower shell, wherein the upper shell and the lower shell form a containing space of the wireless charging plate for installing the wireless charging plate.
Further, the upper shell is made of high-temperature-resistant plastic.
Further, the lower case is made of an aluminum alloy material.
Further, heat-conducting silica gel is filled between the lower shell and the wireless charging plate for heat dissipation.
Further, the joint of the upper shell and the lower shell is sealed by viscose glue so as to improve the waterproofness of the protection shell.
The utility model has the advantages that: by adopting a multi-coil array mode formed by arranging an upper charging coil and a lower charging coil, the wireless charging receiving position is effectively expanded, so that a user can more easily find the optimal charging position during charging, and the user can place electronic equipment conforming to a QI protocol at any position of a face shell to realize wireless charging; and through adopting two sets of stand alone type wireless transmitting module, can charge to two wireless device at most simultaneously, satisfy the charging demand of many equipment of user and provide convenience for the user.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a wireless charging apparatus provided in accordance with an example embodiment;
fig. 2 is an overall view of a wireless charging device provided in accordance with an example embodiment;
FIG. 3 is a block diagram of portions of a wireless charging apparatus provided in accordance with an exemplary embodiment;
FIG. 4 is a circuit diagram of a power interface provided in accordance with an exemplary embodiment;
FIG. 5 is a circuit diagram of a charging C port provided in accordance with an exemplary embodiment;
FIG. 6 is a circuit diagram of a charging A port provided in accordance with an exemplary embodiment;
FIG. 7 is a circuit diagram of a master provided in accordance with an example embodiment;
fig. 8 and 9 are circuit diagrams of a first wireless transmission module provided in accordance with an example embodiment;
fig. 10-12 are circuit diagrams of a second wireless charging transmission module provided in accordance with an exemplary embodiment;
FIG. 13 is a circuit diagram of a magnetic field feedback signal provided in accordance with an example embodiment.
Figure 1-protective housing; 2-a wireless charging pad; 3-an upper shell; 4-a lower shell; 5-a charging coil; 6-power interface; 7-charging port C; 8-charging port A.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 to 3, an embodiment of the present invention provides a wireless charging device, including: a protective case 1 and a wireless charging pad 2;
an upper layer of charging coils 5 and a lower layer of charging coils 5 are arranged on the wireless charging panel 2, and the upper layer of charging coils and the lower layer of charging coils 5 can form at least two magnetic field centers on the charging surface of the protective shell 1;
two mutually independent wireless transmitting modules (not shown in the figure) are also arranged on the wireless charging panel 2, the wireless transmitting modules are connected with the charging coils 5 on the corresponding layers and respectively control the charging of the charging coils 5 on the corresponding layers, and the two groups of independent wireless transmitting modules can simultaneously supply power to two devices at high power so as to meet the requirement that a plurality of devices of a user can be simultaneously used;
still be equipped with master controller and power interface 6 on the wireless charging panel, power interface 6 is used for connecting outside DC power supply and wireless transmitting module, and the master controller is connected with two wireless transmitting module respectively for charge for at least two consumer that have the wireless function of charging.
Specifically, the protective case 1 includes: go up casing 3 and casing 4 down, go up casing 3 and casing 4 down and form the accommodation space of wireless charging panel 2(PCB board) and be used for installing wireless charging panel 2, go up casing 3 and casing 4 accessible joint's down mode and connect fixedly to be equipped with corresponding fixed column on casing 4 down and fix wireless charging panel. Wherein, last casing 3 is made by high temperature resistant plastic, and casing 4 is made by aluminum alloy material and can effectively dispel the heat down, goes up casing 3 and casing 4 junction down and seals up the waterproof nature in order to improve the protection casing by the viscose, goes up casing 3 and pastes tight charging coil, can wrap up on the surface of last casing 3 and carry out device processing such as cloth, cladding to strengthen surperficial frictional force, protection battery charging outfit landing when charging guarantees the normal clear of charging. And a heat-conducting silica gel is filled between the lower housing 4 and the wireless charging pad 2 to further enhance the heat dissipation effect.
Referring to fig. 3, two layers of charging coils 5 are symmetrical about a central axis, wherein one layer close to the wireless charging panel 2 comprises three charging coils 5 arranged side by side in sequence;
the one deck that is close to the face of charging (go up casing 3) of protection casing 1 is equipped with two charging coil 5 that set up side by side in proper order. Thus, five magnetic field centers for wireless charging can be formed on the surface of the upper shell 3, wherein the three charging coils 5 on the lower layer are controlled by the first wireless transmitting module to be charged, the two charging coils 5 on the upper layer are controlled by the second wireless transmitting module to be charged, and the two modules can work independently to charge two electric devices simultaneously. The user can put the electronic equipment conforming to the QI protocol at any position of the product panel shell to realize wireless charging; two groups of independent wireless transmitting modules are adopted, and at most two wireless devices can be charged simultaneously.
In some embodiments of the present invention, the wireless charging board is further provided with a charging C port 7 connected to the master controller, and the external power is supplied by adopting the international standard PD + QC3.0 protocol; and
and the charging A port 8 connected with the main controller supplies power to the outside by adopting a QC3.0 standard protocol.
Most of electronic products in the existing market all adopt independent power supply mode, because the power supply agreement of each product is different, if use improper adapter power supply then lead to the electronic product to damage easily or can't reach sufficient power and use, and the utility model discloses well power source that adopts high-power DC input can supply power to external equipment after effectively satisfying wireless charging operating current. The external power supply output port is provided with a charging port C7 and a charging port A8; the charging port C adopts an international standard PD + QC3.0 protocol, so that the power supply requirements of more than 90% of smart phones and tablet computers on the market can be met, and most super power supplies can also be met; the charging port A adopts a QC3.0 standard protocol for power supply and can supply power to common electronic equipment; all the power utilization assemblies are coordinated and processed by the main controller in a unified way, and when the wireless charging module does not need to work, the wireless charging module supplies power to the outside at full power; when the wireless charger has a charging requirement, the wireless charging electric quantity requirement is met firstly, and then the external power is supplied, so that the normal work of the wireless charger is ensured.
In another embodiment of the present invention, a memory connected to the master controller is further disposed on the wireless charging pad for storing data.
Most of backup/storage devices in the current market are storage devices such as a U disk and a mobile hard disk; the external storage devices have few hardware encryption functions, and files are easy to lose or leak; the utility model adopts the hardware encryption mode to store the MAC ID of different devices in independent folders, and the user can set and read the secret key; the method can realize incremental storage particularly aiming at the chat record backup of the user address list and the instant messaging software, and the user can store important files in the equipment to realize multi-equipment sharing or transmission, thereby providing convenience for the user.
Fig. 4 to 13 are specific circuit diagrams of various parts of a wireless charging pad according to an embodiment of the present invention.
Fig. 4 is a circuit diagram of a power interface, which is used for connecting with the adapter adapted to the wireless charging to access a stable dc power supply.
Fig. 5 is a circuit diagram of a charging port C, which uses a PD + QC3.0 protocol to supply power to an external device, uses an EUP3270 synchronous buck converter to control voltage, and processes a stable voltage by an FP6606CASP fast charging chip to perform fast charging on an accessed device conforming to the fast charging protocol.
Fig. 6 is a circuit diagram of the charging port a, which uses NS6322 synchronous buck power management chip to output 5V, 1A dc power for most devices.
Fig. 7 is a circuit diagram of a master controller, and a CV90365 power management chip is used for managing other components of an FOD (foreign object detection) check of a wireless charger, all power utilization components are uniformly coordinated and processed by the master controller, and when a wireless charging module does not need to work, full power supplies power to the outside; when the wireless charger has a charging requirement, the wireless charging electric quantity requirement is met firstly, and then the external power is supplied, so that the normal work of the wireless charger is ensured. And the data can be stored by externally connecting a FLASH memory with the capacity of 8 Gb.
Fig. 8 and 9 are circuit diagrams of a first wireless transmission module, wherein fig. 8 is a circuit diagram of three charging coils, fig. 9 is a circuit diagram of PWM pulse signal generation, a switching circuit composed of MOS transistors generates a signal of switching under the control of a master controller to form a pulse signal, and the pulse signal outputs a pulse signal with a proper pulse amplitude through a synchronous buck converter composed of LC2334 and then is sent to a circuit of a corresponding charging coil to be charged.
Fig. 10 to 12 are circuit diagrams of a second wireless transmission module, which are basically the same as the principle of the first wireless transmission module, except that a driving chip M2105 of an MOS transistor is added in the circuit, and the main controller controls the M2105 to drive the MOS transistor to generate a pulse signal meeting the requirements, so as to generate a changing magnetic field in a charging coil to supply power to the electric device based on the principle of electromagnetic induction.
Referring to fig. 13, a feedback circuit diagram of the pulse signal is shown, the generated pulse signal is fed back to the master controller, and the master controller performs analysis and feedback adjustment to enable the wireless charging device to operate in an optimal operating state.
The wireless charging device provided by the above embodiment of the present invention effectively expands the wireless charging receiving position; the user can put the electronic equipment conforming to the QI protocol at any position of the product panel shell to realize wireless charging; two groups of independent wireless transmitting modules are adopted, so that at most two wireless devices can be charged simultaneously; after the wireless charging power consumption is met, the power can be supplied to the outside through the output port, so that the power supply requirements of most electronic equipment in the market can be met; meanwhile, an encrypted Flash storage module is arranged in the device, so that a user can store important files in the device to realize multi-device sharing or transmission.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A wireless charging device, comprising: a protective housing and a wireless charging pad;
the wireless charging panel is provided with two layers of charging coils, and the two layers of charging coils form at least two magnetic field centers on the charging surface of the protection shell;
the wireless charging panel is also provided with two mutually independent wireless transmitting modules, and the wireless transmitting modules are connected with the charging coils on the corresponding layers and respectively control the charging of the charging coils on the corresponding layers;
the wireless charging panel is further provided with a master controller and a power interface, the power interface is used for connecting an external direct-current power supply with the wireless transmitting modules, and the master controllers are respectively connected with the two wireless transmitting modules and used for charging at least two electric equipment with a wireless charging function.
2. The wireless charging device according to claim 1, wherein the two layers of charging coils are symmetrical about a central axis, and wherein one layer close to the wireless charging panel comprises three charging coils arranged side by side in sequence;
the one deck that is close to the face of charging of protection casing is equipped with two and sets up side by side in proper order the charging coil.
3. The wireless charging device of claim 1, wherein the wireless charging board is further provided with a charging port C connected with the master controller, and the charging port C supplies power to the outside by adopting an international standard PD + QC3.0 protocol.
4. The wireless charging device according to claim 1, wherein the wireless charging board is further provided with a charging port a connected with the master controller, and power is supplied to the outside by adopting a QC3.0 standard protocol.
5. The wireless charging device of claim 1, wherein the wireless charging pad further comprises a memory connected to the master controller for storing data.
6. The wireless charging device of any of claims 1 to 5, wherein the protective housing comprises: the wireless charging device comprises an upper shell and a lower shell, wherein the upper shell and the lower shell form a containing space of the wireless charging plate for installing the wireless charging plate.
7. The wireless charging device of claim 6, wherein the upper housing is made of a high temperature resistant plastic.
8. The wireless charging apparatus of claim 6, wherein the lower housing is made of an aluminum alloy material.
9. The wireless charging device of claim 8, wherein a thermally conductive silicone gel is filled between the lower housing and the wireless charging pad for dissipating heat.
10. The wireless charging device of claim 6, wherein the junction of the upper housing and the lower housing is sealed with an adhesive to improve the waterproof property of the protective housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021205331.6U CN212304819U (en) | 2020-06-24 | 2020-06-24 | Wireless charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021205331.6U CN212304819U (en) | 2020-06-24 | 2020-06-24 | Wireless charging device |
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| Publication Number | Publication Date |
|---|---|
| CN212304819U true CN212304819U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021205331.6U Active CN212304819U (en) | 2020-06-24 | 2020-06-24 | Wireless charging device |
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| CN (1) | CN212304819U (en) |
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- 2020-06-24 CN CN202021205331.6U patent/CN212304819U/en active Active
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