CN219322157U - Wireless charging base - Google Patents
Wireless charging base Download PDFInfo
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- CN219322157U CN219322157U CN202223533652.0U CN202223533652U CN219322157U CN 219322157 U CN219322157 U CN 219322157U CN 202223533652 U CN202223533652 U CN 202223533652U CN 219322157 U CN219322157 U CN 219322157U
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- wireless charging
- control board
- power supply
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application relates to a wireless charging base which is used for charging electronic equipment and comprises a shell, wherein a transmitting coil, a charging control board and a detection switch are arranged in the shell; the transmitting coil and the detecting switch are respectively and electrically connected with the charging control board, the charging control board is used for generating pulse signals with certain frequency and transmitting the pulse signals through the transmitting coil, and the magnetic control switch is used for starting the charging control board when detecting the existence of the electronic equipment. The wireless charging base adopts a wireless charging mode, the problems that the metal contact is exposed outside the shell and the contact of the metal contact is poor are solved, the detection switch is used for controlling the opening of charging, and when no electronic equipment is charged, the detection switch is disconnected from a power supply to work, so that energy sources are saved, and electromagnetic pollution is reduced.
Description
Technical Field
The application belongs to the technical field of wireless charging, and relates to a wireless charging base.
Background
In the related art, some portable electronic devices are charged by a charging base, and when the electric quantity of the electronic device is insufficient, the electronic device can be placed on the charging base to be charged until the electronic device is fully charged.
After the electronic equipment is fully charged and taken out, the charging base is not automatically powered off, but is continuously powered on, and the metal contact of the charging base which is contacted with the electronic equipment by adopting the metal contact is also in a charged state, so that the mechanical switch is usually arranged to disconnect the metal contact, however, after long-term use, mechanical fatigue can occur on the metal contact and the mechanical switch, so that poor contact is caused, and the charging cannot be well carried out.
Disclosure of Invention
The application aims at providing a wireless charging base, has safer and long service life's effect.
The application is realized by the following technical scheme.
The technical scheme is to provide a wireless charging base for charging electronic equipment, which is characterized by comprising a shell, wherein a transmitting coil, a charging control board and a detection switch are arranged in the shell;
the transmitting coil and the detecting switch are respectively and electrically connected with the charging control board, the charging control board is used for generating pulse signals with a certain frequency and transmitting the pulse signals through the transmitting coil, and the detecting switch is used for starting the charging control board to work when the electronic equipment is detected to exist.
According to the technical scheme, the wireless charging base adopts a wireless charging mode, the problems that a metal contact is exposed out of a shell and the contact of the metal contact is poor are solved, the detection switch is adopted to control the opening of charging, and when no electronic equipment is charged, the detection switch is disconnected from a power supply to work, so that energy is saved, and electromagnetic pollution is reduced.
As an implementation manner of the technical scheme, the detection switch is a mechanical switch, and the detection switch can be triggered through electronic equipment;
or the detection switch is a magnetic control switch, the magnetic control switch comprises a reed switch and a Hall sensor, and the detection switch can be triggered by a magnetic component arranged on the electronic equipment.
As an implementation mode of the technical scheme, the detection switches are arranged in a plurality, the detection switches are arranged in a space array relative to the shell, and the detection switches are connected and electrically connected to the charging control board.
As an embodiment of the present technical solution, a fixing slot for accommodating the electronic device is provided outside the housing, and the detection switch is provided inside the housing corresponding to the fixing slot.
The shell is provided with the fixing groove, so that the electronic equipment can be limited to a fixed position, and when the detection switch is a magnetic control switch, the magnetic component of the electronic equipment can be conveniently corresponding to the magnetic control switch.
As an embodiment of the present utility model, the detection switch is disposed inside a side wall or inside a bottom of the fixing groove of the housing.
As an embodiment of the present utility model, the transmitting coil is disposed inside a bottom portion of the fixing groove of the housing.
As an embodiment of the present technical solution, the charging control board includes a wireless charging circuit, the wireless charging circuit includes:
a pulse generating unit for generating a pulse signal;
and the amplifying unit is used for amplifying the pulse signal of the pulse generating unit and outputting the amplified pulse signal to the transmitting coil.
As an embodiment of the present utility model, the pulse generating unit includes:
the pulse signal generator is used for generating a pulse signal, an enabling pin of the pulse signal generator is connected with the detection switch, a power supply pin is connected with a power supply end of the charging control board, an output pin of the pulse signal generator is connected with the amplifying unit, and a G pin of the pulse signal generator is grounded;
one end of the first resistor is connected with the power supply end, and the other end of the first resistor is connected with the C pin of the pulse signal generator;
and two ends of the second resistor are respectively connected with a C pin and an M pin of the pulse signal generator.
As an embodiment of the present utility model, the amplifying unit includes:
the input pin of the power amplifier is connected with the pulse generating unit, the G pin is grounded, and the D pin is connected with one end of the transmitting coil.
As an embodiment of the present technical solution, the charging control board further includes:
the first capacitor is connected with the transmitting coil in series and then connected with the power supply end;
the second capacitor is connected with the transmitting coil and the second capacitor in parallel, one end of the second capacitor is connected with the amplifying unit, and the other end of the second capacitor is connected with the power supply end;
a third capacitor; one end of the power supply is connected with the power supply end, and the other end of the power supply is grounded;
a fourth capacitor; one end of the power supply is connected with the power supply end, and the other end is grounded.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.
Fig. 1 is a schematic structural diagram of a wireless charging base and an electronic device according to an embodiment of the present application.
Fig. 2 is a schematic cross-sectional structure of the wireless charging base and the electronic device according to an embodiment of the present application.
Fig. 3 is a schematic circuit diagram of the charge control board shown in an embodiment of the present application.
Reference numerals illustrate:
10-a wireless charging base; 11-a housing; 12-charging control board; 121-a pulse generating unit; 122-an amplifying unit; 13-a transmitting coil; 14-detecting a switch; 15-a fixed groove;
20-an electronic device; 21-a magnetic component; 22-receiving coil.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which some embodiments of the present application are shown, and it is apparent that some, but not all embodiments of the present application are described. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The following describes the technical scheme of the embodiments of the present application in detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, the present embodiment provides a wireless charging base 10 for charging an electronic device 20, for example, the electronic device 20 is a wireless fruit and vegetable purifier, and the complete internal structure of the wireless fruit and vegetable purifier is not shown in the drawings.
The wireless charging base 10 comprises a shell 11, wherein a transmitting coil 13, a charging control board 12 and a detection switch 14 are arranged in the shell 11; the transmitting coil 13 and the detecting switch 14 are respectively electrically connected with the charging control board 12, the charging control board 12 is used for generating a pulse signal with a certain frequency and transmitting the pulse signal through the transmitting coil 13, and the detecting switch 14 is used for starting the charging control board 12 when detecting the existence of the electronic device 20.
In this way, the wireless charging base 10 adopts the wireless charging mode, and has no problems that the metal contact is exposed outside the housing 11 and the contact of the metal contact is poor, and the detection switch 14 is triggered by the magnetic component 21 on the electronic device 20 by controlling the start of charging through the detection switch 14, so that the detection switch 14 can be prevented from being triggered by the invasion of foreign matters such as metal.
The detection switch 14 is a reed switch or a hall sensor, and the detection switch 14 can be triggered by a magnetic component 21 mounted on the electronic device 20, and the magnetic component 21 can be a magnet or an electromagnetic coil capable of generating a magnetic field.
Because wireless charging is to carry out non-contact transmission of energy through electromagnetic mode, if metal invades in wireless energy transmission field, it will produce the electric vortex in the metal to make metal generate heat, the temperature constantly rises, easily causes the conflagration, so, the detecting switch 14 adopts reed switch or hall sensor can prevent the problem that produces the electric vortex in the metal.
In other embodiments, the detecting switch 14 may be a mechanical switch, such as a micro switch, where the detecting switch 14 is a mechanical switch, and because the mechanical switch has metal, the detecting switch 14 is prevented from being installed in the magnetic field of the transmitting coil 13, so as to prevent the occurrence of eddy currents in the metal.
When the electronic device 20 is placed on the wireless charging base 10, the magnetic component 21 triggers the detection switch 14 to be turned on, the detection switch 14 enables the charging control board 12 to start charging operation, generates a pulse signal with a certain frequency and emits the pulse signal through the transmitting coil 13, and the receiving coil 22 on the electronic device 20 generates induced current under the magnetic field of the transmitting coil 13 to be used for charging the battery inside the electronic device 20.
By providing the fixing groove 15 in this way, the electronic device 20 can be restricted to a fixed position, and the magnetic member 21 of the electronic device 20 can be easily associated with the detection switch 14.
The detecting switches 14 are one or more, the detecting switches 14 are arranged in a space array in the housing 11, and the detecting switches 14 are electrically connected to the charging control board 12 after being connected, for example, the number of the detecting switches 14 is three, and the three detecting switches 14 are sequentially connected in series.
In order to better place the electronic device 20 on the wireless charging base 10, a fixing groove 15 for accommodating the electronic device 20 is provided outside the housing 11, and a detection switch 14 is provided inside the housing 11 corresponding to the fixing groove 15. The detection switch 14 is disposed on the inner side of the side wall or the inner side of the bottom of the fixed slot 15 of the housing 11, preferably, the detection switch is disposed on the side wall of the fixed slot 15, and the transmitting coil 13 is disposed in the middle of the fixed slot 15, so that the problem of eddy current can be prevented. The transmitting coil 13 is disposed inside the bottom of the fixing slot 15 of the housing 11, and the receiving coil 22 on the electronic device 20 is disposed at the bottom of the electronic device 20.
The charging control board 12 includes a wireless charging circuit including a pulse generating unit 121 and an amplifying unit 122, the pulse generating unit 121 is configured to generate a pulse signal, and the amplifying unit 122 is configured to amplify the pulse signal of the pulse generating unit 121 and output the amplified pulse signal to the transmitting coil 13.
As shown in fig. 3, the pulse generating unit 121 includes, for example, a pulse signal generator U2 and a first resistor R1 and a second resistor R2, where the pulse signal generator U2 is used to generate a pulse signal, for example, the pulse signal generator U2 may employ a semiconductor chip with a model XKT001, an enable pin EN of the pulse signal generator U2 is connected to three serially connected detection switches S1, S2, S3, a power supply pin VCC thereof is connected to a power supply terminal VCC of the wireless charging circuit, an output pin PLS thereof is connected to the amplifying unit 122, and a G pin thereof is grounded; one end of the first resistor R1 is connected with the power end VCC, and the other end of the first resistor R1 is connected with a pin C of the pulse signal generator; two ends of the second resistor R2 are respectively connected with a C pin and an M pin of the pulse signal generator.
The amplifying unit 122 includes a power amplifier U1, for example, the power amplifier U1 may be a semiconductor chip with a model XKT335, the input pin PLS of which is connected to the pulse generating unit 121, the g pin is grounded, and the D pin is connected to one end of the transmitting coil L1.
The charging control board 12 further includes a first capacitor C1, a second capacitor C2, a third capacitor C3, and a fourth capacitor C4, where the first capacitor C1 is connected in series with the transmitting coil L1 and then connected to the power supply terminal VCC; the second capacitor C2 is connected in parallel with the transmitting coil L1 and the second capacitor C2 (these capacitors and inductors form a resonant circuit to satisfy the maximum energy transmission efficiency), and one end of the second capacitor C2 is connected to the amplifying unit 122, and the other end is connected to the power supply end VCC; one end of the third capacitor C3 is connected to the power supply end, and the other end of the third capacitor C is grounded; one end of the fourth capacitor C4 is connected to the power supply end, and the other end of the fourth capacitor C is connected to the ground.
The embodiments of the present application have been described above, the foregoing description is exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the improvement of technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (9)
1. The wireless charging base is used for charging electronic equipment and is characterized by comprising a shell, wherein a transmitting coil, a charging control board and a detection switch are arranged in the shell;
the transmitting coil and the detecting switch are respectively and electrically connected with the charging control board, the charging control board is used for generating pulse signals with a certain frequency and transmitting the pulse signals through the transmitting coil, and the detecting switch is used for starting the charging control board to work when the electronic equipment is detected to exist;
the outside of casing is equipped with the fixed slot that is used for holding electronic equipment, the casing corresponds the inboard of fixed slot is provided with the detection switch.
2. The wireless charging base of claim 1, wherein the detection switch is a mechanical switch that can be triggered by an electronic device;
or the detection switch is a magnetic control switch, the magnetic control switch comprises a reed switch and a Hall sensor, and the detection switch can be triggered by a magnetic component arranged on the electronic equipment.
3. The wireless charging base of claim 1, wherein a plurality of detection switches are provided, the detection switches are arranged in a space array relative to the housing, and the plurality of detection switches are electrically connected to the charging control board after being connected.
4. The wireless charging base of claim 1, wherein the detection switch is disposed inside a sidewall or inside a bottom of the fixed slot of the housing.
5. The wireless charging base of claim 1, wherein the transmitting coil is disposed inside a bottom of the stationary slot of the housing.
6. The wireless charging dock of claim 1, wherein the charging control board comprises a wireless charging circuit comprising:
a pulse generating unit for generating a pulse signal;
and the amplifying unit is used for amplifying the pulse signal of the pulse generating unit and outputting the amplified pulse signal to the transmitting coil.
7. The wireless charging dock of claim 6, wherein the pulse generation unit comprises:
the pulse signal generator is used for generating a pulse signal, an enabling pin of the pulse signal generator is connected with the detection switch, a power supply pin is connected with a power supply end of the charging control board, an output pin of the pulse signal generator is connected with the amplifying unit, and a G pin of the pulse signal generator is grounded;
one end of the first resistor is connected with the power supply end, and the other end of the first resistor is connected with the C pin of the pulse signal generator;
and two ends of the second resistor are respectively connected with a C pin and an M pin of the pulse signal generator.
8. The wireless charging dock of claim 6, wherein the amplification unit comprises:
the input pin of the power amplifier is connected with the pulse generating unit, the G pin is grounded, and the D pin is connected with one end of the transmitting coil.
9. The wireless charging dock of claim 6, wherein the charging control board further comprises:
the first capacitor is connected with the transmitting coil in series and then connected with the power supply end;
the second capacitor is connected with the transmitting coil and the second capacitor in parallel, one end of the second capacitor is connected with the amplifying unit, and the other end of the second capacitor is connected with the power supply end;
a third capacitor; one end of the power supply is connected with the power supply end, and the other end of the power supply is grounded;
a fourth capacitor; one end of the power supply is connected with the power supply end, and the other end is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223533652.0U CN219322157U (en) | 2022-12-28 | 2022-12-28 | Wireless charging base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223533652.0U CN219322157U (en) | 2022-12-28 | 2022-12-28 | Wireless charging base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219322157U true CN219322157U (en) | 2023-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223533652.0U Active CN219322157U (en) | 2022-12-28 | 2022-12-28 | Wireless charging base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219322157U (en) |
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2022
- 2022-12-28 CN CN202223533652.0U patent/CN219322157U/en active Active
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