Radio circuit with tool battery charging function

Abstract

The utility model relates to the technical field of radios, in particular to a radio circuit with a tool battery charging function, which comprises a tool battery insertion interface, a main power supply circuit, a tool battery charging circuit, a master control MCU circuit and a radio circuit, the master control MCU circuit comprises a master control chip IC203, the radio circuit comprises a radio chip U502, and the radio chip U502 is connected with the main power supply circuit. The tool battery charging circuit comprises a charging chip IC1, a Charge ID detection module, a CR BUS communication module, a 12V tool battery Tool ID detection module, a 18V tool battery Tool ID detection module, an NTC detection module, a voltage monitoring module and a current monitoring module. According to the radio, a tool battery charging function is added, conversion between battery charging and battery power supply can be carried out, a charger with a tool battery independently is not needed, and operation of a user is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a radio technology field especially is a radio circuit with tool battery charging function. BACKGROUND

[0002] In the environment of construction site, workers usually need to carry many tools, and many of the tools rely on rechargeable batteries for power supply. The existing solution is to use a dedicated tool battery charger to charge these batteries. However, this charger has only a single function of charging and cannot provide other additional values. In addition, workers also need to carry these chargers additionally, which increases the inconvenience of work. SUMMARY

[0003] The utility model provides a radio circuit with tool battery charging function for the prior art problem, the radio increases the function of tool battery charging, can carry out battery charging and battery power supply conversion, does not need the charger of tool battery separately, the operation of user is facilitated, the utility model circuit realizes simple, facilitates the use of the site, and the worker can not need to take the charger on the site, only needs to have a site sound, can listen to music, can also charge the tool battery, greatly facilitates the operation of the worker, low cost, high efficiency, strong reliability.

[0004] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0005] The utility model provides a radio circuit with tool battery charging function, it includes tool battery insertion interface, main power supply circuit, tool battery charging circuit, main control MCU circuit and radio circuit, the tool battery insertion interface is connected with tool battery charging circuit, the main power supply circuit is tool battery charging circuit, main control MCU circuit and radio circuit power supply, the main power supply circuit, tool battery charging circuit and radio circuit are connected with main control MCU circuit electricity respectively, the main control MCU circuit includes main control chip IC203, the radio circuit includes radio chip U502, the tool battery charging circuit includes charge chip IC1, charge ID detection module, CR BUS communication module, 12V tool battery Tool ID detection module, 18V tool battery Tool ID detection module, NTC detection module, voltage monitoring module and current monitoring module, charge ID detection module, CR BUS communication module, 12V tool battery Tool ID detection module, 18V tool battery Tool ID detection module, NTC detection module, voltage monitoring module and current monitoring module are connected with charge chip IC1 respectively, and main control chip IC203 is connected with charge chip IC1 and radio chip U502 respectively.

[0006] The Charge ID detection module includes a resistor R69, a resistor R85, a resistor R72 and a capacitor C62; the CRBUS communication module includes a capacitor C50, a capacitor C53, a switch tube Q20, a resistor R83, a resistor R84 and a resistor R111; the NTC detection module includes a resistor R64, a resistor R71, a resistor R81, a resistor R82, a resistor R112, a capacitor C64 and a switch tube Q19;

[0007] One end of the resistor R69 and one end of the resistor R85 are connected to the charging chip IC1, one end of the resistor R72, one end of the capacitor C50 and the drain of the switch tube Q20; the other end of the resistor R72 is connected to the capacitor C62 and the main control chip IC203; the other end of the capacitor C62 is grounded; the other end of the capacitor C50 is connected to one end of the capacitor C53; the other end of the capacitor C53 is grounded; the source of the switch tube Q20 is connected to one end of the resistor R111; the other end of the resistor R111 is grounded; the gate of the switch tube Q20 is connected to one end of the resistor R83 and one end of the resistor R84; the other end of the resistor R84 is grounded; the other end of the resistor R83 is connected to the main control chip IC203; one end of the resistor R64 is connected to the charging chip IC1 and one end of the resistor R71; the other end of the resistor R71 is connected to one end of the capacitor C64 and the main control chip IC203; the other end of the capacitor C64 is grounded.

[0008] The 12V tool battery Tool ID detection module includes a resistor R63, a resistor R87, a capacitor C96 and a capacitor C97; the 18V tool battery Tool ID detection module includes a resistor R86, a resistor R70, a capacitor C82 and a capacitor C83;

[0009] One end of the resistor R87 is connected to the main control chip IC203; the other end of the resistor R87 is connected to one end of the resistor R63 and one end of the capacitor C96; the other end of the capacitor C96 is connected to one end of the capacitor C97; the other end of the capacitor C97 is grounded.

[0010] One end of the resistor R70 is connected to the main control chip IC203; the other end of the resistor R70 is connected to one end of the resistor R86 and one end of the capacitor C82; the other end of the capacitor C82 is connected to one end of the capacitor C83; the other end of the capacitor C83 is grounded.

[0011] The voltage monitoring module comprises a Zener diode ZD2, a resistor R4, a switch tube Q3, a resistor R8, a switch tube Q8, a resistor R19, a resistor R14, a resistor R5, a resistor R6 and an electrostatic protector ESD1, one end of the resistor R6 is grounded, the other end of the resistor R6 is connected with one end of the resistor R5, the electrostatic protector ESD1 is connected with the resistor R6 in parallel, the other end of the resistor R5 is connected with the drain electrode of the switch tube Q3, the source electrode of the switch tube Q3 is connected with one end of the resistor R4, the cathode of the Zener diode ZD2 and the charging chip IC1, the gate electrode of the switch tube Q3 is connected with the other end of the resistor R4, the anode of the Zener diode ZD2 and one end of the resistor R8, the other end of the resistor R8 is connected with the drain electrode of the switch tube Q8, the source electrode of the switch tube Q8 is grounded, the gate electrode of the switch tube Q8 is connected with one end of the resistor R14 and one end of the resistor R19, the other end of the resistor R19 is grounded, and the other end of the resistor R14 is connected with the main control chip IC203.

[0012] The current monitoring module comprises a resistor R2, a resistor R13, a resistor R12 and a capacitor C31, one end of the resistor R2 is connected with the charging chip IC1 and one end of the resistor R13, the other end of the resistor R13 is connected with the charging chip IC1 and one end of the capacitor C31, one end of the resistor R2 is connected with one end of the resistor R12, and the other end of the resistor R12 is connected with the charging chip IC1 and the other end of the capacitor C31.

[0013] Preferably, the model of the main control chip IC203 is SC3323.

[0014] Preferably, the model of the charging chip IC1 is SC8815.

[0015] The radio circuit with the tool battery charging function further comprises a Bluetooth module, and the Bluetooth module is connected with the main control chip IC203.

[0016] The radio circuit with the tool battery charging function further comprises a Type-C interface, and the Type-C interface is connected with the main control chip IC203.

[0017] The radio circuit with the tool battery charging function has the following beneficial effects:

[0018] In operation, this invention utilizes the main control chip IC203 connected to the charging chip IC1 and the radio chip U502 to achieve radio reception and detect whether a battery is inserted into the radio. If the voltage, charge ID, tool ID, and NTC of the tool battery meet the charging requirements, the radio will charge the tool battery. The charging circuit employs the charging chip IC1, Charge ID detection module, CR BUS communication module, 12V tool battery Tool ID detection module, 18V tool battery Tool ID detection module, NTC detection module, voltage monitoring module, and current monitoring module to detect the voltage, current, charge ID, tool ID, and NTC of the tool battery. This adds the function of charging the tool battery to the radio, enabling switching between battery charging and battery power supply without the need for a separate tool battery charger, thus simplifying user operation. The circuit implementation is simple and convenient for construction site use. Workers can work on the site without carrying a charger; a construction site speaker is sufficient for both listening to music and charging the tool battery, greatly simplifying operation. It is low-cost, highly efficient, and highly reliable. Attached Figure Description

[0019] Figure 1 This is a circuit diagram of the main control MCU circuit of this utility model.

[0020] Figure 2 This is a circuit diagram of the radio chip U502, voltage monitoring module, and current monitoring module of this utility model.

[0021] Figure 3 This is a partial circuit diagram of the tool battery charging circuit of this utility model.

[0022] Figure 4 The circuit diagram shows the Charge ID detection module, CR BUS communication module, and NTC detection module of the tool battery charging circuit of this utility model.

[0023] Figure 5 This is a circuit diagram of the radio circuit of this utility model. Detailed Implementation

[0024] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0025] A radio circuit with tool battery charging function, such as Figures 1 to 5As shown, it includes a tool battery insertion interface, a main power supply circuit, a tool battery charging circuit, a master MCU circuit and a radio circuit, the tool battery insertion interface is connected with the tool battery charging circuit, the main power supply circuit supplies power for the tool battery charging circuit, the master MCU circuit and the radio circuit, and the main power supply circuit, the tool battery charging circuit and the radio circuit are electrically connected with the master MCU circuit respectively; the master MCU circuit includes a master chip IC203, the radio circuit includes a radio chip U502, the tool battery charging circuit includes a charging chip IC1, a Charge ID detection module, a CR BUS communication module, a 12V tool battery Tool ID detection module, an 18V tool battery Tool ID detection module, an NTC detection module, a voltage monitoring module and a current monitoring module, the Charge ID detection module, the CR BUS communication module, the 12V tool battery Tool ID detection module, the 18V tool battery Tool ID detection module, the NTC detection module, the voltage monitoring module and the current monitoring module are connected with the charging chip IC1 respectively, and the master chip IC203 is connected with the charging chip IC1 and the radio chip U502 respectively; the model of the master chip IC203 is SC3323; and the model of the charging chip IC1 is SC8815.

[0026] Specifically, during work, the master chip IC203 is connected with the charging chip IC1 and the radio chip U502 respectively to realize the radio function and realize detection of whether a battery is inserted into the radio, if the voltage, the charge ID, the Tool ID and the NTC of the tool battery all meet the charging requirements, the radio will charge the tool battery; wherein the charging chip IC1, the Charge ID detection module, the CR BUS communication module, the 12V tool battery Tool ID detection module, the 18V tool battery Tool ID detection module, the NTC detection module, the voltage monitoring module and the current monitoring module of the tool battery charging circuit are used to detect the voltage, the current, the charge ID, the Tool ID and the NTC of the tool battery, so that the radio is provided with the function of charging the tool battery, can realize the conversion between battery charging and battery power supply, does not need a separate charger for the tool battery, and the operation of the user is facilitated; the circuit is simple in realization, convenient for use on a construction site, and workers can work on the construction site without needing to take a charger, only need to have a construction site sound (radio), can listen to music and charge the tool battery, greatly facilitate the operation of the workers, low in cost, high in efficiency and strong in reliability.

[0027] The utility model discloses a SC8815 step -down chip is the chip that is more commonly used in circuit, because its high cost performance and the interference of the radio is less use in circuit, generally as the role of charger, the voltage and current of charger need to monitor the circuit to adjust the voltage of input, prevent overcharge and overcurrent condition, so the circuit uses an MCU as main control, uses SC8815 step -down chip and voltage detection circuit detects the real -time voltage and current of battery, then after the voltage and current of MCU control charging, guarantee the voltage and current of circuit in standard range. The utility model discloses SC8815 as charging chip and voltage detection circuit can accurately detect the voltage and current of tool battery in real time, and the voltage and current of tool battery are adjusted to the voltage and current of tool battery by the voltage and current of MCU through detection, realize the quick and safe charging of tool battery, improve the practicality of radio.

[0028] In the embodiment of the application, the Charge ID detection module includes resistors R69, R85, R72 and capacitor C62; the CR BUS communication module includes capacitor C50, capacitor C53, switch tube Q20, resistor R83, resistor R84 and resistor R111; the NTC detection module includes resistor R64, resistor R71, resistor R81, resistor R82, resistor R112, capacitor C64 and switch tube Q19; one end of resistor R69 and one end of resistor R85 are connected to charge chip IC1, one end of resistor R72, one end of capacitor C50 and the drain of switch tube Q20, the other end of resistor R72 is connected to capacitor C62 and main control chip IC203, the other end of capacitor C62 is grounded, the other end of capacitor C50 is connected to one end of capacitor C53, the other end of capacitor C53 is grounded, the source of switch tube Q20 is connected to one end of resistor R111, the other end of resistor R111 is grounded, the gate of switch tube Q20 is connected to one end of resistor R83 and one end of resistor R84, the other end of resistor R84 is grounded, the other end of resistor R83 is connected to main control chip IC203; one end of resistor R64 and one end of resistor R71 are connected to charge chip IC1, the other end of resistor R71 is connected to one end of capacitor C64 and main control chip IC203, the other end of capacitor C64 is grounded. Specifically, the tool battery has a charge ID inside, which is used as the charging identification of the tool battery, and resistors R69, R85, R72, capacitor C62 and the detection circuit of Charge ID; the tool battery has a CR BUS communication circuit inside, which is used as the charging identification and battery chip communication of the tool battery with CR BUS, and capacitor C50, capacitor C53, switch tube Q20, resistor R83, resistor R84 and resistor R111 constitute the communication circuit of CR BUS; the tool battery has a negative temperature coefficient thermistor inside, which is in close contact with the heating device of the battery and is used as a temperature sensor; resistors R64, R71, switch tube Q19, resistors R81, R82 and resistor R112 constitute the NTC detection circuit.

[0029] In the embodiment of the application, the 12V tool battery Tool ID detection module includes a resistor R63, a resistor R87, a capacitor C96 and a capacitor C97, the 18V tool battery Tool ID detection module includes a resistor R86, a resistor R70, a capacitor C82 and a capacitor C83; one end of the resistor R87 is connected with the master control chip IC203, the other end of the resistor R87 is connected with one end of the resistor R63 and one end of the capacitor C96, the other end of the capacitor C96 is connected with one end of the capacitor C97, and the other end of the capacitor C97 is grounded; one end of the resistor R70 is connected with the master control chip IC203, the other end of the resistor R70 is connected with one end of the resistor R86 and one end of the capacitor C82, the other end of the capacitor C82 is connected with one end of the capacitor C83, and the other end of the capacitor C83 is grounded. Specifically, the tool battery has a Tool ID inside, which is used as tool battery identity identification, the resistor R63, the resistor R87, the capacitor C96 and the capacitor C97 are used as the Tool ID detection circuit of the 12V tool battery, and the resistor R86, the resistor R70, the capacitor C82 and the capacitor C83 are used as the Tool ID detection circuit of the 18V tool battery.

[0030] In the embodiment of the application, the voltage monitoring module includes a voltage stabilizing diode ZD2, a resistor R4, a switch tube Q3, a resistor R8, a switch tube Q8, a resistor R19, a resistor R14, a resistor R5, a resistor R6 and an electrostatic protector ESD1, one end of the resistor R6 is grounded, the other end of the resistor R6 is connected with one end of the resistor R5, the electrostatic protector ESD1 is connected with the resistor R6 in parallel, the other end of the resistor R5 is connected with the drain of the switch tube Q3, the source of the switch tube Q3 is connected with one end of the resistor R4, the cathode of the voltage stabilizing diode ZD2 and the charging chip IC1, the gate of the switch tube Q3 is connected with the other end of the resistor R4, the anode of the voltage stabilizing diode ZD2 and one end of the resistor R8, the other end of the resistor R8 is connected with the drain of the switch tube Q8, the source of the switch tube Q8 is grounded, the gate of the switch tube Q8 is connected with one end of the resistor R14 and one end of the resistor R19, the other end of the resistor R19 is grounded, and the other end of the resistor R14 is connected with the master control chip IC203. Specifically, the voltage stabilizing diode ZD2, the resistor R4, the switch tube Q3, the resistor R8, the switch tube Q8, the resistor R19, the resistor R14, the resistor R5, the resistor R6 and the electrostatic protector ESD1 are used to form the voltage monitoring circuit of the tool battery, and the voltage range of the battery is monitored in real time by IC203 operation.

[0031] In the embodiment of the application, the current monitoring module comprises a resistor R2, a resistor R13, a resistor R12 and a capacitor C31; one end of the resistor R2 is connected with the charging chip IC1 and one end of the resistor R13, the other end of the resistor R13 is connected with the charging chip IC1 and one end of the capacitor C31, the other end of the resistor R2 is connected with one end of the resistor R12, and the other end of the resistor R12 is connected with the other end of the charging chip IC1 and the capacitor C31. Specifically, the current monitoring circuit of the tool battery is formed by the resistor R2, the resistor R13, the resistor R12 and the capacitor C31, and the charging current range of the battery is monitored in real time by IC1 (SC8815) operation.

[0032] In the embodiment of the application, the radio circuit with the tool battery charging function further comprises a Bluetooth module, and the Bluetooth module is connected with the master control chip IC203. Specifically, under the above setting, the external smart terminal is conveniently connected to realize remote control.

[0033] In the embodiment of the application, the radio circuit with the tool battery charging function further comprises a Type-C interface, and the Type-C interface is connected with the master control chip IC203. Specifically, under the above setting, the external U disk is conveniently connected to improve the functional diversity.

[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as above, it is not intended to limit the utility model. Any skilled person in the art can make some changes or modifications without departing from the scope of the utility model. Any simple modification, equivalent change and modification of the above embodiment within the scope of the utility model are all within the scope of the utility model.

Claims

1. A radio circuit with a tool battery charging function, characterized in that: The tool battery insertion interface is connected with the tool battery charging circuit, the main power supply circuit supplies power for the tool battery charging circuit, the main control MCU circuit and the radio circuit, and the main power supply circuit, the tool battery charging circuit and the radio circuit are respectively connected with the main control MCU circuit.

2. A radio circuit with a battery charging function for a tool according to claim 1, characterized in that The Charge ID detection module includes resistors R69, R85, R72 and a capacitor C62; the CR BUS communication module includes capacitors C50, C53, a switch tube Q20, resistors R83, R84 and a resistor R111; the NTC detection module includes resistors R64, R71, R81, R82, R112, a capacitor C64 and a switch tube Q19; One end of the resistor R69 and one end of the resistor R85 are connected and connected with the charging chip IC1, one end of the resistor R72, one end of the capacitor C50 and the drain electrode of the switch tube Q20, the other end of the resistor R72 is connected with the capacitor C62 and the main control chip IC203, the other end of the capacitor C62 is grounded, the other end of the capacitor C50 is connected with one end of the capacitor C53, the other end of the capacitor C53 is grounded, the source electrode of the switch tube Q20 is connected with one end of the resistor R111, the other end of the resistor R111 is grounded, the gate electrode of the switch tube Q20 is connected with one end of the resistor R83 and one end of the resistor R84, the other end of the resistor R84 is grounded, and the other end of the resistor R83 is connected with the main control chip IC203; one end of the resistor R64 is connected with one end of the resistor R71 and the charging chip IC1, the other end of the resistor R71 is connected with one end of the capacitor C64 and the main control chip IC203, and the other end of the capacitor C64 is grounded.

3. A radio circuit with a battery charging function for a tool according to claim 1, characterized in that The 12V tool battery Tool ID detection module includes resistors R63, R87, a capacitor C96 and a capacitor C97, and the 18V tool battery Tool ID detection module includes resistors R86, R70, a capacitor C82 and a capacitor C83. One end of the resistor R87 is connected with the master control chip IC203, the other end of the resistor R87 is connected with one end of the resistor R63 and one end of the capacitor C96, the other end of the capacitor C96 is connected with one end of the capacitor C97, the other end of the capacitor C97 is grounded. One end of the resistor R70 is connected with the master control chip IC203, the other end of the resistor R70 is connected with one end of the resistor R86 and one end of the capacitor C82, the other end of the capacitor C82 is connected with one end of the capacitor C83, the other end of the capacitor C83 is grounded.

4. A radio circuit with a battery charging function for a tool according to claim 1, characterized in that The voltage monitoring module comprises a voltage stabilizing diode ZD2, a resistor R4, a switch tube Q3, a resistor R8, a switch tube Q8, a resistor R19, a resistor R14, a resistor R5, a resistor R6 and an electrostatic protector ESD1, one end of the resistor R6 is grounded, the other end of the resistor R6 is connected with one end of the resistor R5, the electrostatic protector ESD1 is connected with the resistor R6 in parallel, the other end of the resistor R5 is connected with the drain of the switch tube Q3, the source of the switch tube Q3 is connected with one end of the resistor R4, the cathode of the voltage stabilizing diode ZD2 and the charging chip IC1, the gate of the switch tube Q3 is connected with the other end of the resistor R4, the anode of the voltage stabilizing diode ZD2 and one end of the resistor R8, the other end of the resistor R8 is connected with the drain of the switch tube Q8, the source of the switch tube Q8 is grounded, the gate of the switch tube Q8 is connected with one end of the resistor R14 and one end of the resistor R19, the other end of the resistor R19 is grounded, the other end of the resistor R14 is connected with the master control chip IC203.

5. A radio circuit with battery charging function for a tool according to claim 1, characterized in that: The current monitoring module comprises a resistor R2, a resistor R13, a resistor R12 and a capacitor C31, one end of the resistor R2 is connected with the charging chip IC1 and one end of the resistor R13, the other end of the resistor R13 is connected with the charging chip IC1 and one end of the capacitor C31, the other end of the resistor R2 is connected with one end of the resistor R12, the other end of the resistor R12 is connected with the charging chip IC1 and the other end of the capacitor C31.

6. A radio circuit with battery charging function for a tool according to claim 1, characterized in that: The model of the master control chip IC203 is SC3323.

7. A radio circuit with battery charging function for a tool according to claim 1, characterized in that: The model of the charging chip IC1 is SC8815.

8. A radio circuit with a battery charging function for a tool according to claim 1, characterized in that: The radio circuit with the tool battery charging function further comprises a Bluetooth module, and the Bluetooth module is connected with the master control chip IC203.

9. A radio circuit with battery charging function for a tool according to claim 1, characterized in that: The radio circuit with the tool battery charging function further comprises a Type-C interface, and the Type-C interface is connected with the master control chip IC203.

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