CN210839074U - Single-layer coil device for wireless charging - Google Patents
Single-layer coil device for wireless charging Download PDFInfo
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- CN210839074U CN210839074U CN201921944307.1U CN201921944307U CN210839074U CN 210839074 U CN210839074 U CN 210839074U CN 201921944307 U CN201921944307 U CN 201921944307U CN 210839074 U CN210839074 U CN 210839074U
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- coil
- fpc
- wireless charging
- charging coil
- metal wiring
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Abstract
The utility model relates to a single-layer coil device for wireless charging, the device includes casing, magnetic sheet and wireless charging assembly, the casing includes casing and lower casing, magnetic sheet and inferior valve body coupling, go up the casing and can dismantle with the casing down and be connected, wireless charging assembly includes the wire jumper, metal wiring and FPC charging coil, the FPC charging coil is fixed to be located on the magnetic sheet, the wire jumper includes first jumper portion and second jumper portion, FPC charging coil outside coil initiating terminal is connected to first jumper portion, second jumper portion is connected to metal wiring's one end, metal wiring's the other end is connected the most inside coil end of FPC charging coil. Compared with the prior art, the utility model discloses a single-deck FPC charging coil satisfies the miniaturized demand of device, utilizes wire jumper and metal wiring to accomplish the electric current return circuit, and conversion electric energy is efficient, is equipped with heat conduction silica gel piece between magnetic plate and FPC charging coil, improves device radiating efficiency, improves device's security performance.
Description
Technical Field
The utility model relates to a wireless charging device especially relates to a single-deck coil assembly for wireless charging.
Background
The wireless charging technology is a technology for charging equipment by utilizing an electromagnetic induction principle, is mature in recent years, and is widely applied to various electronic products and communication equipment.
Current electronic equipment structure is more and more littleer, consequently more and more high to equipment space utilization's requirement, and the FPC coil of double-deck sculpture is adopted to most wireless charging equipment now, leads to wireless charging equipment's space utilization not high, structural aspect etc. does not reach miniaturized demand to because charging coil generates heat in the charging process, can lead to charge efficiency to reduce, influence the charging effect.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a single-layer coil device for wireless charging, which overcomes the above-mentioned drawbacks of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a single-deck coil device for wireless charging, the device include casing, magnetic sheet and wireless subassembly that charges, the casing include casing and lower casing, magnetic sheet and casing fixed connection down, last casing can dismantle fixed connection with lower casing, wireless subassembly that charges include wire jumper, metal wiring and FPC charging coil, FPC charging coil fix locate the magnetic sheet on, the wire jumper include first jumper wire portion and second jumper wire portion, first jumper wire portion be connected with FPC charging coil's outside coil initiating terminal, metal wiring's one end with second jumper wire portion connect, metal wiring's the other end with FPC charging coil end-to-end connection.
And the magnetic plate is provided with a metal wiring groove matched with the metal wiring in shape.
The device still including locating the heat conduction silica gel piece between magnetic plate and FPC charging coil, heat conduction silica gel piece and FPC charging coil shape adaptation, heat conduction silica gel piece and magnetic plate fixed connection, FPC charging coil fixed adhesion in the heat conduction silica gel piece on.
The metal connection wire comprises a metal connection wire main body and a metal connection wire end portion, wherein the metal connection wire main body is coated with an insulating coating, and a conductive metal coating is plated on the metal connection wire end portion.
The corresponding positions of the upper shell and the lower shell are provided with screw holes, and the upper shell and the lower shell are fixedly connected through bolts and nuts.
The FPC charging coil is a wireless transmitting coil meeting the Qi standard.
The magnetic plate is a nanocrystalline magnetic plate.
The inner diameter range of the FPC charging coil is 2-4 cm, the outer diameter of the FPC charging coil is 6-9 cm, and the thickness range of the FPC charging coil is 2-3 mm.
Compared with the prior art, the utility model has the advantages of as follows:
(1) the utility model adopts a single-layer FPC charging coil, the space utilization rate of the device is high, and the requirement of miniaturization of the wireless charging device is met;
(2) the utility model completes the current loop by using the jumper and the metal wiring, and the conversion efficiency of the FPC charging coil into electric energy is high;
(3) the utility model discloses a be equipped with heat conduction silica gel piece between magnetic plate and FPC charging coil, improve device radiating efficiency, improve device's security performance.
Drawings
Fig. 1 is a bottom view of the wireless charging assembly and the upper housing of the present invention;
fig. 2 is a schematic structural view of the magnetic plate of the present invention;
fig. 3 is a schematic structural view of the lower housing of the present invention;
fig. 4 is a schematic cross-sectional view of the present invention;
fig. 5 is a schematic structural diagram of the jumper wire of the present invention.
The FPC comprises an FPC charging coil 1, an FPC charging coil 2, a metal wiring 21, a metal wiring main body 22, a metal wiring end 3, a jumper wire 31, a first jumper wire part 32, a second jumper wire part 33, a mains supply connecting end 4, a magnetic plate 41, a metal wiring groove 5, a lower shell 6, an upper shell 7 and a heat-conducting silica gel sheet.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Note that the following description of the embodiments is merely an example of the nature, and the present invention is not intended to limit the application or the use thereof, and the present invention is not limited to the following embodiments.
Examples
As shown in figures 1-4, a single-layer coil device for wireless charging, the device include casing, magnetic plate 4, heat conduction silica gel sheet 7 and wireless charging assembly, magnetic plate 4 is the nanocrystalline magnetic plate, wireless charging assembly includes wire jumper 3, metal connection 2 and FPC charging coil 1, FPC charging coil 1 is for satisfying the wireless transmitting coil of Qi standard, FPC charging coil 1's internal diameter scope is 2 ~ 4cm, FPC charging coil 1's external diameter is 6 ~ 9cm, FPC charging coil 1's thickness scope is 2 ~ 3 mm.
As shown in fig. 1 and 3, the casing includes casing 6 and casing 5 down, magnetic sheet 4 and casing 5 fixed connection down, FPC charging coil 1 is fixed to be located on magnetic sheet 4, wire jumper 3 includes first jumper wire portion 31 and second jumper wire portion 32, first jumper wire portion 31 is connected with FPC charging coil 1's the outside coil initiating terminal, metal wiring 2's one end and second jumper wire portion 32 are connected, metal wiring 2's the other end and FPC charging coil 1's the most inside coil end-to-end connection, go up casing 6, the screw has been seted up to the corresponding position of casing 5 down, go up casing 6, casing 5 down through bolt, nut fixed connection, the utility model discloses in, the tip that FPC charging coil 1 was kept away from to wire jumper 3 is commercial power connection end 33, the device passes through commercial power connection section 33 and commercial power connection.
As shown in fig. 5, the metal wire 2 includes a metal wire main body 21 and a metal wire end 22, the metal wire main body 21 is coated with an insulating coating, and a conductive metal coating is plated on the metal wire end 22, so that the metal wire 2 is prevented from contacting with the FPC charging coil 1, and the conductivity is improved.
As shown in fig. 2 and 4, a metal wiring groove 41 matched with the metal wiring 2 in shape is formed in the magnetic plate 4, after installation is completed, the metal wiring 2 is clamped in the metal wiring groove 41, a heat conduction silica gel sheet 7 is arranged between the magnetic plate 4 and the FPC charging coil 1, the heat conduction silica gel sheet 7 is matched with the FPC charging coil 1 in shape, the heat conduction silica gel sheet 7 is fixedly connected with the magnetic plate 4, the FPC charging coil 1 is fixedly adhered to the heat conduction silica gel sheet 7, and the heat dissipation performance of the device is effectively improved.
The above embodiments are merely examples and do not limit the scope of the present invention. These embodiments may be implemented in other various manners, and various omissions, substitutions, and changes may be made without departing from the technical spirit of the present invention.
Claims (8)
1. The single-layer coil device for wireless charging is characterized by comprising a shell, a magnetic plate (4) and a wireless charging assembly, wherein the shell comprises an upper shell (6) and a lower shell (5), the magnetic plate (4) is fixedly connected with the lower shell (5), the upper shell (6) is detachably and fixedly connected with the lower shell (5), the wireless charging assembly comprises a jumper wire (3), a metal wiring part (2) and a FPC (flexible printed circuit) charging coil (1), the FPC charging coil (1) is fixedly arranged on the magnetic plate (4), the jumper wire (3) comprises a first jumper wire part (31) and a second jumper wire part (32), the first jumper wire part (31) is connected with the starting end of the outermost coil of the FPC charging coil (1), one end of the metal wiring part (2) is connected with the second jumper wire part (32), the other end of the metal wiring (2) is connected with the end of the innermost coil of the FPC charging coil (1).
2. The single-layer coil device for wireless charging according to claim 1, wherein the magnetic plate (4) is provided with a metal wiring groove (41) which is matched with the metal wiring (2) in shape.
3. The single-layer coil device for wireless charging according to claim 1, wherein the device further comprises a heat-conducting silicone sheet (7) arranged between the magnetic plate (4) and the FPC charging coil (1), the heat-conducting silicone sheet (7) is matched with the FPC charging coil (1) in shape, the heat-conducting silicone sheet (7) is fixedly connected with the magnetic plate (4), and the FPC charging coil (1) is fixedly adhered to the heat-conducting silicone sheet (7).
4. The single-layer coil device for wireless charging according to claim 1, wherein the metal wire (2) comprises a metal wire body (21) and a metal wire end (22), the metal wire body (21) is coated with an insulating coating, and the metal wire end (22) is coated with a conductive metal coating.
5. The single-layer coil device for wireless charging according to claim 1, wherein the upper housing (6) and the lower housing (5) have screw holes at corresponding positions, and the upper housing (6) and the lower housing (5) are fixedly connected through bolts and nuts.
6. The single-layer coil device for wireless charging according to claim 1, wherein the FPC charging coil (1) is a wireless transmitting coil satisfying Qi standard.
7. The single-layer coil device for wireless charging according to claim 1, wherein the magnetic plate (4) is a nanocrystalline magnetic plate.
8. The single-layer coil device for wireless charging according to claim 1, wherein the inner diameter of the FPC charging coil (1) ranges from 2 cm to 4cm, the outer diameter of the FPC charging coil (1) ranges from 6 cm to 9cm, and the thickness of the FPC charging coil (1) ranges from 2 mm to 3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921944307.1U CN210839074U (en) | 2019-11-12 | 2019-11-12 | Single-layer coil device for wireless charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921944307.1U CN210839074U (en) | 2019-11-12 | 2019-11-12 | Single-layer coil device for wireless charging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210839074U true CN210839074U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921944307.1U Active CN210839074U (en) | 2019-11-12 | 2019-11-12 | Single-layer coil device for wireless charging |
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| Country | Link |
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| CN (1) | CN210839074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886722A (en) * | 2021-03-25 | 2021-06-01 | 深圳劲芯微电子有限公司 | Wireless charger and charging coil structure thereof |
-
2019
- 2019-11-12 CN CN201921944307.1U patent/CN210839074U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886722A (en) * | 2021-03-25 | 2021-06-01 | 深圳劲芯微电子有限公司 | Wireless charger and charging coil structure thereof |
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