CN203933166U - Wireless charging generating circuit and household electrical appliance - Google Patents
Wireless charging generating circuit and household electrical appliance Download PDFInfo
- Publication number
- CN203933166U CN203933166U CN201420320170.3U CN201420320170U CN203933166U CN 203933166 U CN203933166 U CN 203933166U CN 201420320170 U CN201420320170 U CN 201420320170U CN 203933166 U CN203933166 U CN 203933166U
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- Prior art keywords
- power supply
- controller
- switch module
- wireless charging
- transmitting coil
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- Expired - Lifetime
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- 238000001514 detection method Methods 0.000 claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims 1
- WJZHMLNIAZSFDO-UHFFFAOYSA-N manganese zinc Chemical compound [Mn].[Zn] WJZHMLNIAZSFDO-UHFFFAOYSA-N 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a wireless generating circuit that charges, is applied to household electrical appliances, is connected with DC power supply, and this circuit includes driver, first electric capacity, transmitting coil, controller, switch module and detection module, the driver connects DC power supply does the controller provides work DC power supply, transmitting coil with first electric capacity is parallelly connected, and an end connects DC power supply, another termination switch module's input, detection module detects transmitting coil's current change feeds back to the controller, the controller adjusts switch module's switch chronogenesis and duty cycle according to this current change, through set up above-mentioned wireless generating circuit that charges on household electrical appliances, can provide the wireless charging of electromagnetic wave form for treating charging equipment, provides convenience in the life at home, more saves socket resource, simultaneously, has solved and has utilized the zinc-manganese cell power supply that can not multiplex, and the serious problem to environmental pollution after the abandonment has also reduced the expense of changing consumer's battery.
Description
Technical Field
The utility model relates to a wireless charging technology especially relates to a wireless generating circuit and tame electric installation that charge.
Background
Household appliance remote controllers and shavers are used as electric equipment, and at present, most of the household appliance remote controllers and shavers provide direct-current power supplies through zinc-manganese batteries, so that when the electric quantity of the batteries is exhausted, the zinc-manganese batteries seriously pollute the environment after being discarded. Replacing the batteries also adds additional expense to the consumer.
The rechargeable battery is used for providing direct current power supply for a remote controller, a mobile phone, a shaver and the like of household appliances, when the electric quantity of the battery is exhausted, the rechargeable battery is usually connected with a wired charger for charging, and although the wired charger has portability, the wired charger is easy to break and often needs to occupy a direct current power supply socket, and various problems of inconvenient use and the like caused by wired connection exist.
SUMMERY OF THE UTILITY MODEL
Therefore, there is a need for a reliable, convenient, and socket resource-saving wireless charging circuit applicable to household appliances.
The utility model provides a wireless generating circuit that charges, is applied to household electrical appliances, is connected with DC power supply, and this circuit includes driver, first electric capacity, be used for producing electromagnetic transmitting coil, controller, switch module and detection module, the driver connects DC power supply does the controller provides work DC power supply, transmitting coil with first electric capacity is parallelly connected, and an end connects DC power supply, another termination switch module's input, the output termination of controller switch module's control end, detection module's control end, switch module's output ground connection, detection module detects transmitting coil's current change feed back extremely the controller, the controller adjusts switch module's switch time sequence and duty cycle according to this current change.
Further, the switch module includes an N-channel MOS transistor, a first resistor, a second capacitor, and a zener diode, wherein:
the drain electrode of the MOS tube is used as the input end of the switch module and connected with the transmitting coil, the drain electrode is used as the output end of the switch module, the grid electrode of the MOS tube is connected with one end of the first resistor, and the other end of the MOS tube is used as the control end of the switch module and connected with the output end of the controller; and the controller adjusts the switching time sequence and the duty ratio of the MOS tube according to the current change.
Furthermore, the driver is a three-terminal regulator, the input end of the three-terminal regulator is connected with the positive end of the direct-current power supply, the output end of the three-terminal regulator is connected with the input end of the controller, and the grounding end of the three-terminal regulator is grounded.
And the third capacitor is connected with the output end of the three-terminal regulator at one end and the ground at the other end.
Furthermore, the power supply also comprises a fuse, and one end of the transmitting coil is connected with the positive end of the direct current power supply through the fuse.
In addition, the household appliance comprises a shell, a direct-current power supply and the wireless charging generating circuit, wherein a transmitting coil of the wireless charging generating circuit is arranged on the shell.
Furthermore, the shell is provided with a groove capable of accommodating the equipment to be charged, and a transmitting coil of the wireless charging generating circuit is attached to the inner wall of the groove.
Further, the household appliance is an air conditioner, a refrigerator or a television.
Through set up above-mentioned wireless generating circuit that charges on household electrical appliances, can provide the wireless charging of electromagnetic wave form for treating the battery charging outfit, provide convenience in the life at home, more save socket resource, simultaneously, solved and utilized the zinc-manganese cell power supply that can not multiplex, to the serious problem of environmental pollution after the abandonment, also reduced the expense that the consumer changed the battery.
Drawings
Fig. 1 is a schematic structural diagram of a home appliance according to a preferred embodiment of the present invention;
FIG. 2A is a front view of the wireless charging generation circuit mounted on the inner wall of the recess of FIG. 1;
FIG. 2B is a side view of the wireless charge generation circuit mounted on the inner wall of the recess of FIG. 1;
fig. 3 is a schematic block diagram of a wireless charging generation circuit in the household appliance shown in fig. 1;
fig. 4 is a schematic circuit diagram of a wireless charging circuit in the household electrical appliance shown in fig. 1.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. 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, fig. 2A, fig. 2B and fig. 3, the household electrical appliance 20 in the preferred embodiment of the present invention is an air conditioner, a refrigerator or a television, the household electrical appliance 20 includes a housing 21, a dc power supply 10 and a wireless charging generating circuit 100, and a transmitting coil L1 of the wireless charging generating circuit 100 is disposed on the housing 21.
The housing 21 has a groove 22 for accommodating a device to be charged (not shown), and the transmitting coil L1 of the wireless charging generating circuit 100 is attached to the inner wall 221 of the bottom of the groove 22 close to the ground, so that the receiving coil of the device to be charged and the transmitting coil L1 of the wireless charging generating circuit 100 are closely coupled, and the efficiency of transmitting electromagnetic waves is high.
Referring to fig. 3 and 4, in the preferred embodiment, the wireless charging generating circuit 100 applied to the household electrical appliance 20 is connected to the dc power supply 10, and includes a driver 101, a first capacitor C1, a transmitting coil L1 for generating electromagnetic waves, a controller 102, a switch module 103, and a detection module 104.
In application, the transmitting coil L1 is opposite to an induction coil in the wireless charging receiving circuit for receiving electromagnetic waves, and energy is transmitted in an inductive coupling mode, and the distance between the two coils can reach 5mm and can also be increased to 40mm as required.
The driver 101 is connected with the direct current power supply 10 to provide a working direct current power supply 10 for the controller 102, the transmitting coil L1 is connected in parallel with the first capacitor C1, one end of the transmitting coil L1 is connected with the direct current power supply 10, the other end of the transmitting coil L1 is connected with the input end of the switch module 103, the output end of the controller 102 is connected with the control end of the switch module 103, the control end of the detection module 104 is connected with the ground, the output end of the switch module 103 is connected with the ground, the detection module 104 detects the current change of the transmitting coil L1 and feeds the current change back to the controller 102, and the controller 102 adjusts the switching time sequence and the duty ratio of the switch module 103 according to the current change. The controller 102 is a PWM (Pulse Width Modulation) generator.
In this embodiment, the switch module 103 includes an N-channel MOS transistor Q1, a first resistor R1, a second capacitor C2, and a zener diode D1. The drain of the MOS transistor Q1 is used as the input terminal of the switch module 103 and connected to the transmitting coil L1, the drain is used as the output terminal of the switch module 103, the gate is connected to one end of the first resistor R1, and the other end of the first resistor R1 is used as the control terminal of the switch module 103 and connected to the output terminal of the controller 102; the controller 102 adjusts the switching timing and duty ratio of the MOS transistor Q1 according to the current variation.
Preferably, the driver 101 is a three-terminal regulator, an input terminal of the three-terminal regulator is connected to the positive terminal of the dc power supply 10, an output terminal of the three-terminal regulator is connected to the input terminal of the controller 102, and a ground terminal of the three-terminal regulator is grounded.
The wireless charging generating circuit 100 further comprises a third capacitor C3 and a fuse F1, one end of the third capacitor C3 is connected with the output end of the three-terminal regulator, and the other end of the third capacitor C3 is grounded. One end of the transmitting coil L1 is connected to the positive terminal of the dc power supply 10 through the fuse F1.
The operation principle of the wireless charging generation circuit 100 is explained with reference to fig. 4:
the dc power supply 10 provides energy for the transmitting coil L1 and the first capacitor C1 to oscillate, the driver 101 provides a working power supply for the controller 102, and the third capacitor C3 smoothes the variation of the voltage output by the driver 101. The controller 102 controls the switching time sequence and the duty ratio of the MOS tube Q1, when the MOS tube Q1 is switched on, the transmitting coil L1 is charged, when the MOS tube Q1 is switched off, the energy of the transmitting coil L1 is released into the first capacitor C1, the transmitting coil L1 and the first capacitor C1 form an oscillation loop, the oscillation frequency is obtained, and the energy is transmitted to a receiving coil of the device to be charged in an electromagnetic wave form. The detection module 104 is a voltage/current sensor, detects a change in current of the transmitting coil L1, transmits a signal of the current change to the controller 102, and the controller 102 determines a condition of a load on an output side, thereby adjusting a timing sequence and a duty ratio of a control signal of the MOS transistor Q1.
Through setting up above-mentioned wireless generating circuit 100 that charges on tame electric installation 20, can provide the wireless charging of electromagnetic wave form for waiting the battery charging outfit, provide convenience in the life at home, more save socket resource, simultaneously, solved and utilized the zinc manganese cell power supply that can not multiplex, to the serious problem of environmental pollution after the abandonment, also reduced the expense that the consumer changed the battery.
The above-mentioned embodiments only represent some embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a wireless generating circuit that charges, is applied to household electrical appliances, is connected with DC power supply, its characterized in that, this circuit include driver, first electric capacity, be used for producing electromagnetic transmitting coil, controller, switch module and detection module, the driver connects DC power supply does the controller provides the work DC power supply, transmitting coil with first electric capacity is parallelly connected, and a termination DC power supply, another termination switch module's input, the output termination of controller switch module's control end, detection module's control end, switch module's output ground connection, detection module detects transmitting coil's current change feeds back to the controller, the controller adjusts switch module's switch chronogenesis and duty cycle according to this current change.
2. The wireless charging generation circuit of claim 1, wherein the switch module comprises an N-channel MOS transistor, a first resistor, a second capacitor, and a zener diode, wherein:
the drain electrode of the MOS tube is used as the input end of the switch module and connected with the transmitting coil, the drain electrode is used as the output end of the switch module, the grid electrode of the MOS tube is connected with one end of the first resistor, and the other end of the MOS tube is used as the control end of the switch module and connected with the output end of the controller;
and the controller adjusts the switching time sequence and the duty ratio of the MOS tube according to the current change.
3. The wireless charging generation circuit of claim 2, wherein the driver is a three-terminal regulator, an input terminal of the three-terminal regulator is connected to a positive terminal of the dc power supply, an output terminal of the three-terminal regulator is connected to an input terminal of the controller, and a ground terminal of the three-terminal regulator is grounded.
4. The wireless charging generation circuit of claim 1, further comprising a third capacitor having one end connected to the output terminal of the three-terminal regulator and the other end connected to ground.
5. The wireless charging generation circuit according to claim 1, further comprising a fuse through which one end of the transmission coil is connected to a positive terminal of the direct-current power supply.
6. An electric household appliance comprising a housing, characterized in that the electric household appliance further comprises the wireless charging generation circuit of any one of claims 1 to 5 and supplies the direct current power supply to the wireless charging generation circuit, and a transmitting coil of the wireless charging generation circuit is arranged on the housing.
7. The household electrical appliance of claim 6, wherein the housing defines a recess for receiving a device to be charged, and the transmitting coil of the wireless charging generating circuit is attached to an inner wall of the recess.
8. The home device of claim 6, wherein the home device is an air conditioner, a refrigerator, or a television.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420320170.3U CN203933166U (en) | 2014-06-16 | 2014-06-16 | Wireless charging generating circuit and household electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420320170.3U CN203933166U (en) | 2014-06-16 | 2014-06-16 | Wireless charging generating circuit and household electrical appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203933166U true CN203933166U (en) | 2014-11-05 |
Family
ID=51828921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420320170.3U Expired - Lifetime CN203933166U (en) | 2014-06-16 | 2014-06-16 | Wireless charging generating circuit and household electrical appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203933166U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651945A (en) * | 2016-03-07 | 2016-06-08 | 中煤科工集团重庆研究院有限公司 | Wireless-charging multi-parameter gas measuring equipment |
| CN107846082A (en) * | 2016-09-20 | 2018-03-27 | 三星电机株式会社 | Wireless power transmitter and the method for controlling the wireless power transmitter |
| CN114552797A (en) * | 2021-12-28 | 2022-05-27 | 温州尚明节能科技有限公司 | Underwater low-voltage wireless power supply device |
-
2014
- 2014-06-16 CN CN201420320170.3U patent/CN203933166U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651945A (en) * | 2016-03-07 | 2016-06-08 | 中煤科工集团重庆研究院有限公司 | Wireless-charging multi-parameter gas measuring equipment |
| CN107846082A (en) * | 2016-09-20 | 2018-03-27 | 三星电机株式会社 | Wireless power transmitter and the method for controlling the wireless power transmitter |
| CN107846082B (en) * | 2016-09-20 | 2020-12-22 | 株式会社Wits | Wireless power transmitter and method of controlling the same |
| CN114552797A (en) * | 2021-12-28 | 2022-05-27 | 温州尚明节能科技有限公司 | Underwater low-voltage wireless power supply device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |