CN205355897U - Wireless charging coil subassembly, wireless module and wireless wallet that charges of charging - Google Patents

Wireless charging coil subassembly, wireless module and wireless wallet that charges of charging Download PDF

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Publication number
CN205355897U
CN205355897U CN201521124245.1U CN201521124245U CN205355897U CN 205355897 U CN205355897 U CN 205355897U CN 201521124245 U CN201521124245 U CN 201521124245U CN 205355897 U CN205355897 U CN 205355897U
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China
Prior art keywords
transmitting coil
control circuit
wireless charging
capacitance switch
teeth
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CN201521124245.1U
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Chinese (zh)
Inventor
邵礼斌
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Shenzhen Jing Xin Microtronics AS
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Shenzhen Jing Xin Microtronics AS
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Priority to CN201521124245.1U priority Critical patent/CN205355897U/en
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Abstract

The utility model provides a wireless charging coil subassembly, wireless module and wireless wallet that charges of charging, includes transmitting coil, including the interior capacitive switch of magnetic field range who locates transmitting coil the last a plurality of tooth that is equipped with of capacitive switch has the clearance between the two adjacent teeth to constitute comb dentate structure. The utility model discloses has set up capacitive switch, but has made through this structure and need electric capacity trigger circuit switch -on or the disconnection of battery charging outfit through changing capacitive switch, moreover because clearance between last tooth that is equipped with of capacitive switch and two teeth can be weakened eddy current effect and reduced because of the heat that the eddy current effect produced, plays the thermolysis, protects whole equipment not receive the damage.

Description

Wireless charging coil assembly, wireless charging module and wireless charging wallet
Technical field
This utility model relates to wireless charging field, particularly relates to a kind of Wireless charging coil assembly, wireless charging module and wireless charging wallet.
Background technology
Along with the progress of science and technology, the popularity rate of intelligent apparatus or other carry-on electronic products is more and more higher.Wherein smart mobile phone has replaced legacy mobile phone gradually, but smart mobile phone possesses the characteristic of giant-screen and the computing of many merits because of it, along with the shortcoming of power consumption, causes the inconvenience in use.For solving this problem, intelligent apparatus can be linked by user with portable power source, it is to avoid the puzzlement of power depletion when being away from home.But in existing portable power source, it is necessary to collocation uses the charging wire matched with intelligent apparatus, or being linked on charger by device itself just can be charged, use and be inconvenient for.
Thus, technical staff designs wireless charging device miscellaneous, and such as the patent No. is the Chinese patent literature of 104377748A, discloses out a kind of wireless charging device.It includes a wireless charging pedestal and a portable power source device.Wireless charging pedestal has a wireless transmitter.Wireless transmitter is in order to launch an identification signal.Portable power source device, is electrically connected a portable electron device, has one first rechargeable battery in portable electron device.Portable power source device comprises one second rechargeable battery, a wireless receiver and a control unit.Wireless receiver, in order to when portable power source device is placed on wireless charging pedestal, to receive identification signal and to return one
Back-signalling, to wireless transmitter, makes wireless transmitter that wireless receiver is carried out wireless power.
But in use yet suffer from deficiency, such scheme is that the wireless transmitter utilizing wireless charging pedestal is to launch an identification signal, when portable power source device is placed on wireless charging pedestal, the wireless receiver utilizing portable power source device receives identification signal and returns a back-signalling to wireless transmitter, makes wireless transmitter that wireless receiver is carried out wireless power.But the mode being started charging by wireless signal transmission is unstable, very easily relies on the power of wireless signal, it is possible to occur not working when time delay reaction or signal are weak, cause in-convenience in use.
And traditional on-off mode includes push switch.But this mode needs manual operation, sometimes user is forgotten to open switch or thinks to press and open, and actually not by putting in place, causes not charging in time, makes troubles to user.What now need to provide a kind of intelligence manual operation just need not can automatically begin to the wireless charging device of charging.Can taking a hint from existing handset touch panel, use capacitance-type switch, as long as charger being needed to be placed on wireless charging device, the electric capacity of the capacitance apparatus being provided with due to wireless charging device changes, and just can realize connecting and disconnecting of the circuit.But, if using capacitance-type switch, bigger eddy current will necessarily be produced, produces substantial amounts of heat therewith, be easy to damage wireless charging device and need charger in the process of charging.
Utility model content
In order to overcome the problems referred to above, this utility model provides a kind of can weaken the Wireless charging coil assembly of eddy current effect, wireless charging module and wireless charging wallet without manual manual operation switch simultaneously.
The technical solution of the utility model is: provide a kind of Wireless charging coil assembly, including transmitting coil, and the capacitance switch being located in the magnetic field range of transmitting coil, described capacitance switch is provided with several teeth, there is between adjacent two teeth gap, and constitute comb teeth-shaped structure.
As improvement of the present utility model, the one side at described transmitting coil is provided with antifreeze plate.
This utility model also provides for a kind of wireless charging module, including transmitting coil, described transmitting coil is electrically connected with control circuit assembly, described control circuit assembly is provided with the power interface for being connected with power supply, including the capacitance switch in the magnetic field range being located at transmitting coil, described capacitance switch is electrically connected with control circuit assembly, is provided with several teeth on described capacitance switch, there is between adjacent two teeth gap, and constitute comb teeth-shaped structure;Electronic equipment, by changing the connecting and disconnecting of the circuit of the capacitor trigger transmitting coil of described capacitance switch, makes transmitting coil produce magnetic field or magnetic field disappears.
As improvement of the present utility model, described control circuit assembly includes current rectifying and wave filtering circuit and ON-OFF control circuit, the alternating voltage that described power supply inputs is converted to DC voltage by described current rectifying and wave filtering circuit, and described ON-OFF control circuit controls the connecting and disconnecting of the circuit of transmitting coil according to the signal that capacitance switch sends.
As improvement of the present utility model, described control circuit assembly also includes accumulator, and described accumulator is for being supplied directly to ON-OFF control circuit by the electric energy of savings.
As improvement of the present utility model, described control circuit also includes charging circuit, and described charging circuit is electrically connected with power interface and accumulator respectively.
As improvement of the present utility model, the one side at described transmitting coil is provided with antifreeze plate.
This utility model also provides for a kind of wireless charging wallet, including wallet body, described wallet body is provided with transmitting coil, control circuit assembly and capacitance switch, is provided with several teeth on described capacitance switch, there is between adjacent two teeth gap, and constitute comb teeth-shaped structure;Described control circuit assembly is connected with power supply, described control circuit assembly the signal sent according to capacitance switch controls transmitting coil connecting and disconnecting of the circuit.
As improvement of the present utility model, the one side at described transmitting coil is additionally provided with antifreeze plate.
As improvement of the present utility model, described power supply is chargeable portable power source.
This utility model is provided with capacitance switch; described capacitance switch is provided with several teeth; between adjacent two teeth, there is gap; and constitute comb teeth-shaped structure; this structure makes to need the electric capacity that charger passes through to change capacitance switch can trigger circuit ON or disconnection, and eddy current effect can be weakened in the gap between described tooth and two teeth in described capacitance switch, and reduces the heat because eddy current effect produces; play thermolysis, protect whole equipment without damage.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Wireless charging coil assembly in this utility model.
Fig. 2 is the planar structure schematic diagram of capacitance switch in Fig. 1.
Fig. 3 is the planar structure schematic diagram of the second embodiment of capacitance switch in Fig. 1.
The circuit that Fig. 4 is the wireless charging module in this utility model and wireless charging wallet controls schematic block diagram.
Detailed description of the invention
In description of the present utility model, it will be appreciated that, in term, the orientation of the instruction such as " " center ", " on ", D score, "front", "rear", "left", "right" or position relationship be based on orientation shown in the drawings or position relationship; be for only for ease of description this utility model and simplifying and describe; rather than instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or hint relative importance.
In description of the present utility model, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " connection ", " being connected " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be that dismounting connects, or connect integratedly;Can be mechanically connected, it is also possible to be electrical connection;Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals.For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term at concrete meaning of the present utility model.Additionally, in description of the present utility model, except as otherwise noted, " multiple ", " some " are meant that two or more.
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
What refer to Fig. 1 to Fig. 3, Fig. 1 to Fig. 3 announcement is a kind of Wireless charging coil assembly.Including transmitting coil 110 and the capacitance switch 120 being located at transmitting coil 110.Described capacitance switch metal material is made, it is possible to use the metal material that resistivity is higher, to weaken eddy current effect further, and such as silicon steel.Described capacitance switch 120 can be located at the cavity place of transmitting coil 110 central authorities, it is also possible to is located at the upper surface of transmitting coil 110, it is also possible to is located at the side of transmitting coil 110, as long as in transmitting coil 110 magnetic field range.Described capacitance switch 120 is provided with several teeth 122, has gap 121 between adjacent two teeth 122.Specifically include following example.
Embodiment one (such as Fig. 2), described capacitance switch 120 is provided with several teeth 122, and several teeth 122 extend to same direction, and is provided with the gap 121 of same distance between two adjacent teeth 122, constitutes comb teeth-shaped structure.The shape of wherein said tooth 122 can be vertical bar shaped, it is also possible to be that waveform is tubaeform or special-shaped, if adhesion between adjacent two teeth 122.The effect in described tooth 122 and gap 121 is to weaken eddy current effect, helps heat radiation, reduces the heat produced because of eddy current effect, and protection capacitance switch 120 and transmitting coil 110 are without damage.It is provided with antifreeze plate 130 in the bottom surface of described transmitting coil 110.Antifreeze plate 130 is the interaction between electron scattering and electronics and the electronics utilizing the electric field warm-up movement of function composition to cause, and electromagnetic wave absorption energy is also translated into heat energy, thus reaching the electromagnetic purpose that decays.
Embodiment two (such as Fig. 3), described capacitance switch 120 is provided with several teeth 122, and several teeth 122 are in the extension in the radial direction of capacitance switch 120, and are provided with the gap 121 of same distance between two adjacent teeth 122, constitute the comb teeth-shaped structure of annular.The shape of wherein said tooth 122 can be vertical bar shaped, it is also possible to be that waveform is tubaeform or special-shaped, if adhesion between adjacent two teeth 122.The effect in described tooth 122 and gap 121 is to weaken eddy current effect, helps heat radiation, reduces the heat produced because of eddy current effect, and protection capacitance switch 120 and transmitting coil 110 are without damage.It is provided with antifreeze plate 130 in the bottom surface of described transmitting coil 110.
Refer to the circuit that Fig. 4, Fig. 4 are wireless charging module and wireless charging wallet and control schematic block diagram.Wherein wireless charging module includes transmitting coil 110.One side at described transmitting coil 110 is provided with antifreeze plate 130.Described capacitance switch 120 is provided with several teeth 122, between adjacent two teeth 122, there is gap 121, and constitute comb teeth-shaped structure.Described transmitting coil 110 and capacitance switch 120 are electrically connected with control circuit assembly respectively.Described control circuit assembly is provided with the power interface for being connected with power supply 210.Electronic equipment, by changing the connecting and disconnecting of the circuit of the capacitor trigger transmitting coil 110 of described capacitance switch 120, makes transmitting coil 110 produce magnetic field or magnetic field disappears.
Described control circuit assembly includes current rectifying and wave filtering circuit 220 and ON-OFF control circuit 230, the alternating voltage that described power supply 210 inputs is converted to DC voltage by described current rectifying and wave filtering circuit 220, and described ON-OFF control circuit 230 controls the connecting and disconnecting of the circuit of transmitting coil 110 according to the signal that capacitance switch 120 sends.Described ON-OFF control circuit 230 may be provided in the optional position on circuit main line, and best position is to be electrically connected with transmitting coil 110.
Preferably, described control circuit assembly may also include reduction voltage circuit 260.Described reduction voltage circuit 260 is located between power interface and current rectifying and wave filtering circuit 220, for the High Level AC Voltage of 220V is converted to low-voltage AC.
Preferably, described control circuit assembly may also include transforming circuit 250.Described transforming circuit 250 and transmitting coil 110 are electrically connected, for by the unidirectional current after rectifying and wave-filtering or in accumulator 240 unidirectional current of savings be converted to the unidirectional current of required voltage.
Preferably, described control circuit assembly may also include accumulator 240 and the charging circuit for the charging of described accumulator 240.The electric energy of savings is supplied directly to ON-OFF control circuit 230 by described accumulator 240.Described charging circuit is electrically connected with power interface and accumulator 240 respectively.Described charging circuit can be the branch road being independently arranged, it is also possible to being reduction voltage circuit 260 and current rectifying and wave filtering circuit 220, the DC voltage after rectifying and wave-filtering is directly stored in described accumulator 240.
Embodiment A: need charger, if the back side of the portable electric appts such as mobile phone or portable power source is firstly the need of sticking receiving coil 300, has configured except receiving coil 300.It is placed on the pedestal that described transmitting coil 110, antifreeze plate 130 and capacitance switch 120 form by needing charger, now owing to needing the action of gravity of charger, the electric capacity making described capacitance switch 120 changes, signal is reached in ON-OFF control circuit 230 by described capacitance switch 120, and described ON-OFF control circuit 230 connects circuit.
Control circuit part is as follows.Described power supply 210 is connected with power interface, the alternating current of 220V inputs from power supply 210 interface, low-voltage AC is converted to after reduction voltage circuit 260, low-voltage AC is converted to low-voltage DC through current rectifying and wave filtering circuit 220, low-voltage DC arrives transforming circuit 250 through ON-OFF control circuit 230, described transforming circuit 250 be converted to the output unidirectional current of required voltage.When exporting unidirectional current and flowing through transmitting coil 110, described transmitting coil 110 produces induced field, needs the receiving coil 300 of charger to produce faradic current under induced field effect and is charged.
Embodiment B: only control circuit part is different.When being not necessary for needing power supply unit to charge at ordinary times, it is possible to first being saved in accumulator 240 by electric energy, charging process is as follows.Described power supply 210 is connected with power interface, the alternating current of 220V inputs from power interface, being converted to low-voltage AC after reduction voltage circuit 260, low-voltage AC is converted to low-voltage DC through current rectifying and wave filtering circuit 220, and low-voltage direct is stored electronically in accumulator 240.Discharge process is as follows: after circuit ON, and low-voltage DC flows out accumulator 240, through transforming circuit 250, described transforming circuit 250 is converted to the output unidirectional current of required voltage.When exporting unidirectional current and flowing through transmitting coil 110, described transmitting coil 110 produces induced field.Thus play the function of portable power source 210.
If from described power supply 210 access be low-voltage DC time, it is not necessary to current rectifying and wave filtering circuit 220 and reduction voltage circuit 260 are set.
This utility model also includes a kind of wireless charging wallet, and including wallet body, described wallet body is provided with transmitting coil 110, antifreeze plate 130, control circuit assembly and capacitance switch 120.Described transmitting coil 110 and capacitance switch 120 are located on the surface of described wallet body, convenient to mobile electronic device chargings such as mobile phones.Described capacitance switch 120 is provided with several teeth 122, between adjacent two teeth 122, there is gap 121, and constitute comb teeth-shaped structure.Described control circuit assembly is connected with power supply 210, described control circuit assembly the signal sent according to capacitance switch 120 controls transmitting coil 110 connecting and disconnecting of the circuit.Described power supply 210 is chargeable portable power source.Described control circuit assembly is identical with wireless charging module with operation principle.Described chargeable portable power source includes accumulator and charging circuit.
Obviously, this utility model can be carried out various change and modification without deviating from spirit and scope of the present utility model by those skilled in that art.So, if these amendments of the present utility model and modification belong within the scope of this utility model claim and equivalent technologies thereof, then this utility model is also intended to include these change and modification.

Claims (9)

1. a Wireless charging coil assembly, including transmitting coil, it is characterised in that include the capacitance switch being located in the magnetic field range of transmitting coil, is provided with several teeth, has gap, and constitute comb teeth-shaped structure between adjacent two teeth on described capacitance switch.
2. Wireless charging coil assembly according to claim 1, it is characterised in that the one side at described transmitting coil is provided with antifreeze plate.
3. a wireless charging module, including transmitting coil, described transmitting coil is electrically connected with control circuit assembly, described control circuit assembly is provided with the power interface for being connected with power supply, it is characterised in that include the capacitance switch being located in the magnetic field range of transmitting coil, described capacitance switch is electrically connected with control circuit assembly, described capacitance switch is provided with several teeth, there is between adjacent two teeth gap, and constitute comb teeth-shaped structure;Electronic equipment, by changing the connecting and disconnecting of the circuit of the capacitor trigger transmitting coil of described capacitance switch, makes transmitting coil produce magnetic field or magnetic field disappears.
4. wireless charging module according to claim 3, it is characterized in that, described control circuit assembly includes current rectifying and wave filtering circuit and ON-OFF control circuit, the alternating voltage that described power supply inputs is converted to DC voltage by described current rectifying and wave filtering circuit, and described ON-OFF control circuit controls the connecting and disconnecting of the circuit of transmitting coil according to the signal that capacitance switch sends.
5. wireless charging module according to claim 4, it is characterised in that described control circuit assembly also includes accumulator, described accumulator is for being supplied directly to ON-OFF control circuit by the electric energy of savings.
6. wireless charging module according to claim 3, it is characterised in that the one side at described transmitting coil is provided with antifreeze plate.
7. a wireless charging wallet, including wallet body, it is characterised in that, described wallet body is provided with transmitting coil, control circuit assembly and capacitance switch, described capacitance switch is provided with several teeth, there is between adjacent two teeth gap, and constitute comb teeth-shaped structure;Described control circuit assembly is connected with power supply, described control circuit assembly the signal sent according to capacitance switch controls transmitting coil connecting and disconnecting of the circuit.
8. wireless charging wallet according to claim 7, it is characterised in that the one side at described transmitting coil is provided with antifreeze plate.
9. wireless charging wallet according to claim 7, it is characterised in that described power supply is chargeable portable power source.
CN201521124245.1U 2015-12-31 2015-12-31 Wireless charging coil subassembly, wireless module and wireless wallet that charges of charging Active CN205355897U (en)

Priority Applications (1)

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CN201521124245.1U CN205355897U (en) 2015-12-31 2015-12-31 Wireless charging coil subassembly, wireless module and wireless wallet that charges of charging

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019184548A1 (en) * 2018-03-28 2019-10-03 华为技术有限公司 Coil module, wireless charging emission device, receiving device, system and terminal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019184548A1 (en) * 2018-03-28 2019-10-03 华为技术有限公司 Coil module, wireless charging emission device, receiving device, system and terminal

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