CN104821641B - A kind of wireless charging device - Google Patents
A kind of wireless charging device Download PDFInfo
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- CN104821641B CN104821641B CN201510187661.4A CN201510187661A CN104821641B CN 104821641 B CN104821641 B CN 104821641B CN 201510187661 A CN201510187661 A CN 201510187661A CN 104821641 B CN104821641 B CN 104821641B
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- encapsulating shell
- wafer
- wireless charging
- charging device
- coil
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Abstract
The present invention relates to a kind of wireless charging device, including：Encapsulating shell, coil and control circuit, the coil are electrically connected with the control circuit, and the coil and control circuit are packaged in encapsulating shell, and the control circuit is integrated on wafer, and the wafer level packaging is in the encapsulating shell.Wireless charging device has highly integrated by overall package, and simple in construction, the characteristics of small volume, fault rate greatly reduces the wireless charging device after encapsulation in the course of the work, is easy to the processing of control circuit, reduces production cost.
Description
Technical field
The present invention relates to wireless charging field, more particularly to a kind of wireless charging device.
Background technology
The smart machine such as hand-held device, wearable device is widely used at present, is adaption demand, and these smart machines tend to
In more and more thinner, volume is less and less, and therefore, these equipment are required for making highly integrated design, i.e., in narrow space
Portion integrates more electronic components, more multi-functional to realize, and facilitation, the hommization applied with these smart machines,
Smart machine also gradually adds wireless charging function, and conventional wireless charging is set using inductance and control circuit separate mode
Meter, wherein charging control circuit part is by PCB (Printed Circuit Board printed circuit boards), IC (Integrated
Circuit integrated circuits) and Passive components such as resistance, electric capacity etc. form, control circuit is bulky, manufacturing process is various,
It is complicated, easily broken down in production, test process, easy care, existing wireless charging device have not been met
In the requirement of existing smart machine.
The content of the invention
Based on this, it is necessary to for existing wireless charging device volume is big, complicated, manufacturing process is numerous and diverse, fault rate
The defects of high, there is provided a kind of highly integrated, simple in construction, wireless charging device of small volume, production cost low with fault rate
The characteristics of low.
A kind of wireless charging device, including：Encapsulating shell, coil and control circuit, the coil and control circuit electricity
Property connection, the coil and control circuit are packaged in encapsulating shell, it is characterised in that：
The control circuit is integrated on wafer, and the wafer level packaging is in the encapsulating shell.
In one of the embodiments, the wafer number is multiple.
In one of the embodiments, in addition to pin, the pin are connected with the fabrication, and the pin is at least
Part exposes to the encapsulating shell.
In one of the embodiments, the material of the encapsulating shell is arranged to epoxy resin.
In one of the embodiments, the encapsulating shell includes the first encapsulating shell and the second encapsulating shell, the coil and institute
State wafer to be arranged in first encapsulating shell and second encapsulating shell, first encapsulating shell and second encapsulating shell connect
Connect.
In one of the embodiments, the wafer has bond pad, and the coil is fixed with the bond pad to be connected
Connect.
Above-mentioned wireless charging device, by overall package, have it is highly integrated, it is simple in construction, the characteristics of small volume, encapsulation
Fault rate greatly reduces wireless charging device afterwards in the course of the work, is easy to the processing of control circuit, reduces production cost.
Encapsulating shell made of epoxy resin makes wireless charging device overall more firm, and better heat-radiation effect.
Brief description of the drawings
Fig. 1 is the stereogram of the wireless charging device of one embodiment of the invention；
Fig. 2 is the three-dimensional exploded view of the wireless charging device of one embodiment of the invention.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the better embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose for providing these embodiments is to make to understand more the disclosure
Add thorough and comprehensive.
It should be noted that when element is referred to as " being arranged at " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more
The arbitrary and all combination of related Listed Items.
As shown in figure 1, its three-dimensional exploded view for the wireless charging device 10 of a preferred embodiment of the present invention, including：
Encapsulating shell 100, coil 300 and wafer 200, the control for controlling wireless charging device 10 is integrated with wafer 200
Circuit processed, control circuit may include the circuit elements such as resistance, inductance and electric capacity, and coil 300 is used for induced field, the coil
300 are electrically connected with the wafer 200, and wafer 200 and coil 300 are packaged in encapsulating shell 100, in one embodiment, ginseng
See Fig. 2, the encapsulating shell 100 includes the first encapsulating shell 101 and the second encapsulating shell 102, the envelope of the first encapsulating shell 101 and second
Dress shell 102 is tightly connected, and the coil 300 and the wafer 200 are stacked in the first encapsulating shell 101 and the second encapsulating shell
In 102, it is worth mentioning at this point that, the wafer 200 can connect a substrate (not shown), coil 300, wafer 200 and substrate according to
Secondary stacking is arranged in the first encapsulating shell 101 and the second encapsulating shell 102, and substrate can fix the position of wafer, it is worth mentioning at this point that,
Coil 300 has top and end, and the top and end of coil 300 are connected by plain conductor with fabrication respectively, metal
Line can use aluminum conductor or copper conductor.
Coil 300 and the overall package of wafer 200 are turned into by chip type by the first encapsulating shell 101 and the second encapsulating shell 102
Wireless charging device 10, the small volume of wafer 200, control circuit integration degree is high, and the wireless charging device 10 after encapsulation has
Have highly integrated, simple in construction, the characteristics of small volume, the thickness of wireless charging device 10 after encapsulation is 1.2mm, is applicable to each
Kind light intelligent equipment so that it is thinner to apply the intelligent equipment thickness of the wireless charging device 10 of the present invention, volume
Smaller, fault rate is greatly reduced in the course of the work, while control circuit is integrated on wafer 200 and is easy to control circuit
Processing, reduce production cost.
It should be understood that the quantity of wafer 200 is multiple, furthermore, it is understood that being encapsulated in wireless charging device 10
Wafer 200 can be two, three or more, in one embodiment, the quantity of wafer 200 be two, wafer 200 it
Between interconnect, coil 300 is connected respectively with wafer 200, or is connected with one of wafer 200, is realized between each wafer 200
Different logic control functions, strengthen the control ability of wireless charging device 10.
In one embodiment, Fig. 1, Fig. 2, the first encapsulating shell 101 and the second encapsulating shell 102 are provided with pin 400,
Pin 400 is arranged at the edge of the first encapsulating shell 101 and the second encapsulating shell 102, and described at least part of pin 400 exposes to described
Encapsulating shell 100, the pin 400 are electrically connected with the wafer 200, it is notable that the wafer 200 has seam welding
Disk 201, bond pad 201 can be located at the outside of wafer 200, or be arranged on the inner side of pin 400, referring to Fig. 2, bond pad 201
It is connected with pin 400, the coil 300 is connected by being fixedly connected with realization with the bond pad 201 with the electrical of wafer 200
Connect, specifically, pin 400 is for inputting, output signal, is easy to wafer 200 to be communicated with outer member, the quantity of pin 400 can
Multiple according to the setting of the demand for control of wireless charging device 10, each pin 400 realizes different logic functions, makes wireless charging Denso
Multiple element can be accessed simultaneously by putting 10.
The material of the encapsulating shell 102 of first encapsulating shell 101 and second is arranged to epoxy resin, the encapsulating shell of epoxy resin
100 have good insulating properties, while have good heat dispersion, the stabilization that guarantee wireless charging device 10 works, and first
The encapsulating shell 102 of encapsulating shell 101 and second can also set one layer of epoxy while encapsulation between coil 300 and wafer 200
Resin fixed bed, for fixed coil 300 and wafer 200 so that the structure of wireless charging device 10 is more compact, firm, strengthens
The radiating effect of wafer 200.
It should be understood that the packing forms of the wireless charging device 10 of the present invention can be core that is arbitrary, encapsulating out
Sheet type depends on actual demand, and packing forms are unrestricted, as QFP (Quad Flat Package, Flat type packaged),
LQFP (Low-profile Quad Flat Package, slim QFP), QFN (Quad Flat No-lead Package, side
Shape flat no-lead packages), BGA (Ball Grid Array, ball grid array structure encapsulation), LGA (Land Grid Array,
Background Grid array packages) etc., different packing forms can meet different package requirements.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (4)
1. a kind of wireless charging device, including：Encapsulating shell, coil and control circuit, the coil and the control circuit are electrical
Connection, the coil and control circuit are packaged in encapsulating shell, it is characterised in that：
The control circuit is integrated on wafer, and the wafer level packaging is in the encapsulating shell；
The encapsulating shell includes the first encapsulating shell and the second encapsulating shell, and the coil and the wafer are arranged at first encapsulation
In shell and second encapsulating shell, first encapsulating shell connects with second encapsulating shell；
Also include substrate, the wafer and the substrate connection, the coil, the wafer and the substrate are cascading
In in the first encapsulating shell and the second encapsulating shell；
The material of first encapsulating shell and the second encapsulating shell is arranged to epoxy resin；Set between the coil and the wafer
One layer of epoxy resin fixed bed.
2. wireless charging device according to claim 1, it is characterised in that the wafer number is multiple.
3. wireless charging device according to claim 1, it is characterised in that also including pin, the pin and the crystalline substance
Circle is electrically connected with, and the pin at least partly exposes to the encapsulating shell.
4. wireless charging device according to claim 1, it is characterised in that the wafer has bond pad, the line
Circle is fixedly connected with the bond pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510187661.4A CN104821641B (en) | 2015-04-20 | 2015-04-20 | A kind of wireless charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510187661.4A CN104821641B (en) | 2015-04-20 | 2015-04-20 | A kind of wireless charging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104821641A CN104821641A (en) | 2015-08-05 |
| CN104821641B true CN104821641B (en) | 2018-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510187661.4A Active CN104821641B (en) | 2015-04-20 | 2015-04-20 | A kind of wireless charging device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104821641B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634093B (en) * | 2016-04-01 | 2018-01-09 | 杨军 | A kind of more mobile phone movable three-dimensional wireless charging devices |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100259107A1 (en) * | 2007-11-14 | 2010-10-14 | Peter Kinget | Systems and Methods for Providing Power to a Device Under Test |
| TWI431887B (en) * | 2010-05-21 | 2014-03-21 | Htc Corp | Wireless charging jacket combined with a battery and wireless charging system thereof |
| CN102544615B (en) * | 2011-12-14 | 2014-08-06 | 李鹏 | Wireless charging battery |
| CN204633435U (en) * | 2015-04-20 | 2015-09-09 | 深圳市天微电子有限公司 | A kind of wireless charging device |
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2015
- 2015-04-20 CN CN201510187661.4A patent/CN104821641B/en active Active
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| Publication number | Publication date |
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| CN104821641A (en) | 2015-08-05 |
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| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 518057, Nanshan District hi tech Zone, Guangdong, Shenzhen, road, 13 Thunis Road, A1001, A1003, A1005 Applicant after: Shenzhen Titan Micro Electronics Co., Ltd Address before: 518057, Nanshan District hi tech Zone, Guangdong, Shenzhen, road, 13 Thunis Road, A1001, A1003, A1005 Applicant before: Shenzhen Titan Micro Electronics Co., Ltd. |
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| GR01 | Patent grant |