CN216436894U

CN216436894U - Portable outdoor charger

Info

Publication number: CN216436894U
Application number: CN202123012496.9U
Authority: CN
Inventors: 刘怀智
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-05-03
Anticipated expiration: 2031-12-02

Abstract

The utility model relates to a cell-phone technical field that charges provides portable outdoor charger, including battery case U1 and the voltage stabilizing circuit who is connected with battery case U1 electricity, place the battery in battery case U1, voltage stabilizing circuit's output is connected with wireless transmitting module that charges. Through placing the battery in the battery case U1, step up 3.7V DC power supply to 5V DC power supply output through voltage stabilizing circuit and give the wireless emission module power supply that charges, charge to the cell-phone after wireless emission module that charges handles. When going out, the number of the portable batteries can be selected to meet the actual requirement, so that the mobile phone can be wirelessly charged outdoors, and the mobile phone charging device is convenient to use and low in cost.

Description

Portable outdoor charger

Technical Field

The utility model relates to a cell-phone technical field that charges, it is specific, relate to portable outdoor charger.

Background

With the continuous development of computer technology and information technology, smart phones have larger and larger screens and stronger processor capabilities, and the functions of the mobile phones are more and more colorful, however, the functions also increase the burden of batteries, the cruising ability of the mobile phones is more and more poor, and people often encounter the situation that the mobile phones are without electricity in the using process. Especially outdoors, the charging of the mobile phone in the prior art can only be solved by the mobile power supply, but the mobile power supply is not only heavy, but also faces the situation of power exhaustion. Therefore, how to conveniently charge the mobile phone outdoors becomes a problem to be solved at present.

SUMMERY OF THE UTILITY MODEL

The utility model provides a portable outdoor charger has solved the inconvenient problem of current cell-phone charging.

The technical scheme of the utility model as follows:

portable outdoor charger sets up on the cell-phone shell, including battery case U1 and the voltage stabilizing circuit of being connected with battery case U1 electricity, battery case U1 is used for placing the battery, the output of voltage stabilizing circuit is connected with wireless emission module that charges, voltage stabilizing circuit includes steady voltage chip U2, steady voltage chip U2's VIN foot is connected battery case U1's positive pole, battery case U1's positive pole is still connected steady voltage chip U2's EN foot, steady voltage chip U2's VIN foot still passes through electric capacity C2 ground connection, be connected with electric capacity C1 between steady voltage chip U2's C + foot and the C-foot, steady voltage chip U2's VOUT foot passes through electric capacity C3 ground connection, steady voltage chip U2's VOUT foot output 5V DC power supply.

Further, the wireless charging and transmitting module comprises a high-frequency inverter circuit and a first resonant network circuit, the high-frequency inverter circuit comprises switching tubes Q4-Q7 connected by an H bridge, the grids of the switching tubes Q4-Q7 are all connected with a controller, the drain electrode of the switching tube Q4 and the drain electrode of the switching tube Q6 are connected with the output end of the voltage stabilizing circuit through an inductor L1, the source electrodes of the switching tube Q5 and the switching tube Q7 are grounded, the connection point of the switching tube Q4 and the switching tube Q5 serves as a first output end, and the connection point of the switching tube Q5 and the switching tube Q7 serves as a second output end.

Further, the first resonant network comprises a resistor R5, a capacitor C4 and an inductor L2, one end of the resistor R5 is connected to the first output end, the other end of the resistor R5 is connected to one end of the inductor L2, the other end of the inductor L2 is connected to the second output end, and the capacitor C4 is connected in parallel between the first output end and the second output end.

Further, the utility model discloses still include the wireless receiving module that charges, the wireless receiving module that charges is including the second resonant network circuit, the rectification filter circuit that connect gradually and the interface that charges, the interface that charges is Micro USB interface, Type-C interface or Lighting interface.

Furthermore, the output end of the voltage stabilizing circuit is also connected with a USB interface.

Furthermore, the utility model also comprises a high temperature protection module which comprises a thermistor R1, a triode Q1, a Q2, a Q3 and a relay K1, the first end of the thermistor R1 is connected with the resistor R2 and the rheostat RP1 in series in sequence and then is grounded, the second end of the thermistor R1 is connected with a 5V voltage source, the base electrode of the triode Q1 is connected with the first end of the thermistor R1, the collector of the triode Q1 is connected with the ground after being connected with the resistor R3 in series, the base of the triode Q2 is connected with the collector of the triode Q1, the collector of the triode Q2 is connected with a 5V voltage source after being connected with a resistor R4 in series, the base of the triode Q3 is connected with the collector of the triode Q2, the collector of the triode Q3 is connected with the coil of the relay K1 in series and then connected with a 5V voltage source, and the normally closed end of the relay K1 is connected with the output end of the voltage stabilizing circuit in series.

The utility model discloses a theory of operation and beneficial effect do:

through placing the battery in the battery case U1, step up 3.7V DC power supply to 5V DC power supply output through voltage stabilizing circuit and give the wireless emission module power supply that charges, charge to the cell-phone after wireless emission module that charges handles. When going out, the number of the portable batteries can be selected to meet the actual requirement, so that the mobile phone can be wirelessly charged outdoors, and the mobile phone charging device is convenient to use and low in cost.

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic block diagram of the present invention;

FIG. 2 is a circuit diagram of the voltage regulator circuit of the present invention;

fig. 3 is a circuit diagram of the wireless charging and transmitting module of the present invention;

fig. 4 is a circuit diagram of the high temperature protection module of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive work, are related to the scope of the present invention.

Example 1

As shown in fig. 1, the present embodiment proposes a portable outdoor charger,

the setting is on the cell-phone shell and combines as an organic whole with the cell-phone shell, installs on the cell-phone through the cell-phone shell and charges to the cell-phone. In this embodiment, the outdoor charger includes a battery box U1 and a voltage stabilizing circuit electrically connected to the battery box U1, and the battery box U1 is used for placing batteries. As shown in fig. 2, the output end of the voltage stabilizing circuit is connected with a wireless charging transmitting module, the voltage stabilizing circuit includes a voltage stabilizing chip U2, the VIN pin of the voltage stabilizing chip U2 is connected with the anode of the battery box U1, the anode of the battery box U1 is also connected with the EN pin of the voltage stabilizing chip U2, the VIN pin of the voltage stabilizing chip U2 is grounded through a capacitor C2, a capacitor C1 is connected between the C + pin and the C-pin of the voltage stabilizing chip U2, the VOUT pin of the voltage stabilizing chip U2 is grounded through a capacitor C3, and the VOUT pin of the voltage stabilizing chip U2 outputs 5V dc power.

A18650-type battery is placed in the battery box U1, a 3.7V direct-current power supply is boosted to a 5V direct-current power supply through a voltage stabilizing circuit and is output to the wireless charging transmitting module for power supply, and the wireless charging transmitting module processes the power supply and then charges the mobile phone. When going out, the number of the portable batteries can be selected to meet the actual requirement, so that the mobile phone can be wirelessly charged outdoors, and the mobile phone charging device is convenient to use and low in cost.

Because battery case U1 is used for placing 18650 model's battery, when the outdoor cell-phone does not have the electric condition, can take out 18650 batteries from the common equipment such as highlight flashlight, wireless data transmitter, electric heat thermal clothing, shoes, portable instrument and meter, portable lighting device, as the emergent use of charging of cell-phone, owing to be wireless charging, do not need other auxiliary assembly just can realize the emergent function of charging of cell-phone in the open air.

Further, as shown in FIG. 3,

based on the same concept as that of embodiment 1, the wireless charging and transmitting module in this embodiment includes a high-frequency inverter circuit and a first resonant network circuit, the high-frequency inverter circuit includes switching tubes Q4-Q7 connected by an H-bridge, gates of the switching tubes Q4-Q7 are all connected to a controller, a drain of the switching tube Q4 and a drain of the switching tube Q6 are connected to an output end of a voltage stabilizing circuit through an inductor L1, sources of the switching tube Q5 and the switching tube Q7 are grounded, a connection point of the switching tube Q4 and the switching tube Q5 serves as a first output end, and a connection point of the switching tube Q5 and the switching tube Q7 serves as a second output end. The first resonant network comprises a resistor R5, a capacitor C4 and an inductor L2, one end of the resistor R5 is connected with the first output end, the other end of the resistor R5 is connected with one end of the inductor L2, the other end of the inductor L2 is connected with the second output end, and the capacitor C4 is connected between the first output end and the second output end in parallel.

The high-frequency inverter circuit is used for converting 5V direct current into high-frequency alternating current with the frequency of 100KHz-200KHz under the driving of the controller. The high-frequency alternating current acts on the first resonant network circuit to generate a high-frequency alternating magnetic field, and the electric energy inductive coupling between the wireless charging transmitting module and the mobile phone is realized through the high-frequency magnetic field change.

Further, in order to avoid some mobile phones not having the wireless charging function, the embodiment of the present invention further includes a wireless charging receiving module, the wireless charging receiving module includes a second resonant network circuit, a rectifying and filtering circuit and a charging interface, which are connected in sequence, and the charging interface is a Micro USB interface, a Type-C interface or a Lighting interface. The wireless receiving module that charges sets up on the cell-phone shell equally to the interface that charges can directly set up the position that charges the interface at the cell-phone, sheathe the cell-phone shell when the cell-phone after, the interface that charges inserts the cell-phone on the interface that charges, through the wireless receiving module that charges make the cell-phone possess the wireless function that charges.

Further, in order to provide a wider application scenario, the output end of the voltage stabilizing circuit in this embodiment is further connected to a USB interface. The USB interface is used for connecting a data line, and the battery in the battery box U1 can supply power to other mobile phones or equipment through the data line after passing through the voltage stabilizing circuit.

Example 2, based on the same concept as in example 1 above,

the high-temperature protection circuit further comprises a high-temperature protection module, as shown in fig. 4, the high-temperature protection module comprises a thermistor R1, a triode Q1, a Q2, a Q3 and a relay K1, a first end of the thermistor R1 is sequentially connected in series with a resistor R2 and a varistor RP1 and then grounded, a second end of the thermistor R1 is connected with a 5V voltage source, a base of a triode Q1 is connected with a first end of a thermistor R1, a collector of the triode Q1 is connected in series with a resistor R3 and then grounded, a base of the triode Q2 is connected with a collector of a triode Q1, a collector of the triode Q2 is connected with a 5V voltage source after being connected with a collector of a triode Q4, a base of a triode Q3 is connected with a collector of a triode Q2, a collector of the triode Q3 is connected in series with a coil of a relay K1 and then connected with a 5V voltage source, and a normally closed end of a relay K1 is connected in series with an output end of a voltage stabilizing circuit.

In this embodiment, the thermistor R1 is disposed on the battery box U1, the operating temperature of the battery box U1 is monitored in real time by the high temperature protection module, when the temperature rises abnormally, the resistance value of the thermistor R1 decreases, and the thermistor R1 serves as the base bias resistor of the transistor Q1, so that the base bias of the transistor Q1 rises to enter a cut-off state, and then the transistor Q2 is cut off, the transistor Q3 is turned on, the drive relay K1 is also turned on, the normally-closed end is cut off, the output of the voltage stabilizing circuit is cut off, and the battery in the battery box U1 stops operating and enters a natural cooling state. Preventing further temperature increases from causing damage to the cell phone.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Portable outdoor charger, its characterized in that sets up on the cell-phone shell, including battery case U1 and the voltage stabilizing circuit who is connected with battery case U1 electricity, battery case U1 is used for placing the battery, the output of voltage stabilizing circuit is connected with wireless transmission module that charges, voltage stabilizing circuit includes voltage stabilizing chip U2, voltage stabilizing chip U2's VIN foot is connected battery case U1's positive pole, battery case U1's positive pole is still connected voltage stabilizing chip U2's EN foot, voltage stabilizing chip U2's VIN foot is still through electric capacity C2 ground connection, be connected with electric capacity C1 between voltage stabilizing chip U2's C + foot and the C-foot, voltage stabilizing chip U2's VOUT foot passes through electric capacity C3 ground connection, voltage stabilizing chip U2's VOUT foot output 5V direct current voltage.

2. The portable outdoor charger according to claim 1, wherein the wireless charging transmitting module comprises a high frequency inverter circuit and a first resonant network circuit, the high frequency inverter circuit comprises switching tubes Q4-Q7 connected in an H-bridge, the gates of the switching tubes Q4-Q7 are connected to a controller, the drain of the switching tube Q4 and the drain of the switching tube Q6 are connected to the output end of the voltage stabilizing circuit through an inductor L1, the sources of the switching tube Q5 and the switching tube Q7 are grounded, the connection point of the switching tube Q4 and the switching tube Q5 serves as a first output end, and the connection point of the switching tube Q5 and the switching tube Q7 serves as a second output end.

3. The portable outdoor charger of claim 2 wherein said first resonant network comprises a resistor R5, a capacitor C4, and an inductor L2, one end of said resistor R5 being connected to said first output terminal, the other end of said resistor R5 being connected to one end of said inductor L2, the other end of said inductor L2 being connected to said second output terminal, said capacitor C4 being connected in parallel between said first and second output terminals.

4. The portable outdoor charger according to claim 2, further comprising a wireless charging receiving module, wherein the wireless charging receiving module comprises a second resonant network circuit, a rectifying and filtering circuit and a charging interface which are connected in sequence, and the charging interface is a Micro USB interface, a Type-C interface or a Lighting interface.

5. The portable outdoor charger of claim 1, wherein the output terminal of the voltage stabilizing circuit is further connected with a USB interface.

6. The portable outdoor charger of claim 1 further comprising a high temperature protection module, the high-temperature protection module comprises a thermistor R1, a triode Q1, a Q2, a Q3 and a relay K1, the first end of the thermistor R1 is connected with the resistor R2 and the rheostat RP1 in series in sequence and then is grounded, the second end of the thermistor R1 is connected with a 5V voltage source, the base electrode of the triode Q1 is connected with the first end of the thermistor R1, the collector of the triode Q1 is connected with the ground after being connected with the resistor R3 in series, the base of the triode Q2 is connected with the collector of the triode Q1, the collector of the triode Q2 is connected with a 5V voltage source after being connected with a resistor R4 in series, the base of the triode Q3 is connected with the collector of the triode Q2, the collector of the triode Q3 is connected with the coil of the relay K1 in series and then connected with a 5V voltage source, and the normally closed end of the relay K1 is connected with the output end of the voltage stabilizing circuit in series.