CN112865241B - Hair curler circuit - Google Patents

Hair curler circuit Download PDF

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Publication number
CN112865241B
CN112865241B CN202110100932.3A CN202110100932A CN112865241B CN 112865241 B CN112865241 B CN 112865241B CN 202110100932 A CN202110100932 A CN 202110100932A CN 112865241 B CN112865241 B CN 112865241B
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chip
module
capacitor
resistor
pin
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CN112865241A (en
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金金延
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ZHEJIANG JINDELI ELECTRICAL APPLIANCES CO Ltd
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ZHEJIANG JINDELI ELECTRICAL APPLIANCES CO Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00045—Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters

Abstract

The invention relates to the field of hair curlers, in particular to a hair curler circuit which comprises a main control module, a battery input module, a charging management module, an external power supply input module, a power supply module and a load module, wherein the main control module comprises a single chip microcomputer, the external power supply input module comprises a Type C port and a PD protocol chip, the battery input module is electrically connected with the charging management module and the power supply module respectively, the charging management module is also electrically connected with the single chip microcomputer, the input end of the Type C port is externally connected with an adapter supporting a PD protocol, the output end of the Type C port is electrically connected with the PD protocol chip, the power supply module and the charging management module respectively, the PD protocol chip is electrically connected with the single chip microcomputer, the power supply module is also electrically connected with the main control module, the load module is electrically connected with the single chip microcomputer, the Type C port and the battery input module respectively, the battery input module outputs a battery voltage VBAT, the Type C port outputs an adapter voltage VBUS, and the power supply module outputs a power supply voltage VCC. The invention adds protocol conversion function to make the hair curler have direct function with adapter.

Description

Hair curler circuit
Technical Field
The invention relates to the technical field of hair curlers, in particular to a hair curler circuit.
Background
The hair curler is one of a plurality of household appliances for women, and is mainly used for winding the long hair of the women by using a heating component so as to enable the long hair of the women to generate curly hair.
The existing rechargeable hair curler can be powered by a built-in battery, but the battery capacity is limited, the electric quantity is low or the electric quantity is exhausted, the rechargeable hair curler needs to be connected with an adapter for charging, the rechargeable hair curler can only be charged when being connected with the adapter, the power supply of the battery of the hair curler can not be directly supplied to the hair curler through the adapter, so that the hair curler cannot be used when the electric quantity of the battery of the hair curler is low or the electric quantity of the battery of the hair curler is exhausted, the rechargeable hair curler can be continuously used after being charged for a period of time, and great inconvenience is brought to actual use. The present invention improves upon the above-mentioned deficiencies.
Disclosure of Invention
In order to overcome the defects of the background art, the invention provides a hair curler circuit, which is added with a protocol conversion function, and can change the output voltage of an adapter through a protocol request, so that the rechargeable hair curler has the direct function of the adapter, thereby better meeting the actual requirements.
The technical scheme adopted by the invention is as follows: the utility model provides a curler circuit, including host system, battery input module, charge management module, external power supply input module, power module and load module, host system is including the singlechip, external power supply input module is including Type C port and PD agreement chip, battery input module respectively with charge management module and power module electricity are connected, charge management module still with the singlechip electricity is connected, the external adapter that supports the PD agreement of the input of Type C port, the output respectively with PD agreement chip, power module and charge management module electricity are connected, PD agreement chip with the singlechip electricity is connected, power module still with host system electricity is connected, load module respectively with singlechip, type C port and battery input module electricity are connected, battery input module is including the battery, the anodal output battery voltage VBAT of battery, the output adapter voltage VBUS of Type C port, power module output supply voltage VCC.
In the technical scheme, one end of the adapter is connected with mains supply, the other end of the adapter is connected with the input end of the Type C port, when the adapter is connected, the adapter outputs 5V/3A in a default mode and charges a battery in the battery input module through the charging management module, after a user starts a hair curler product, the single chip microcomputer of the main control module requests the adapter to require 12V/3A through the port control PD protocol chip, meanwhile, the charging management module is controlled to close the charging loop, and the load module is controlled to close the battery load loop and open the adapter load loop.
In order to facilitate the realization of a protocol conversion function, the PD protocol chip adopts a CH224K chip, a CFG1 pin and a CFG3 pin of the CH224K chip are respectively connected to one bit of I/O port of the single chip microcomputer, a CFG2 pin of the CH224K chip is grounded, A4/B9 pin and a B4/A9 pin of the Type C port are output after being shorted, the adapter voltage VBUS is output, A1/B12 pin and a B1/a12 pin of the Type C port are both grounded, A4/B9 pin of the Type C port is connected to a first end of a resistor R24, a second end of the resistor R24 is connected to a VDD pin of the CH224K chip and a first end of a capacitor C25, a second end of the capacitor C25 is grounded, a GND pin of the CH224K chip is grounded, A5 pin of the Type C port is connected to a CC1 pin of the CH224K chip, a B5 pin of the Type C port is connected to a CC2 pin of the CH224K chip, and a DP pin of the CH224K chip are shorted to a DM pin.
Preferably, the load module includes a heating module and a motor driving module, the heating module includes an electric heating element, a first switch circuit and a second switch circuit, the electric heating element is divided into two groups, the two groups are a first electric heating element and a second electric heating element, the positive electrode of the first electric heating element is connected to the battery voltage VBAT, the first switch circuit includes a MOS transistor Q1, a diode D6 and a resistor R4, the D electrode of the MOS transistor Q1 is connected to the negative electrode of the first electric heating element, the S electrode of the MOS transistor Q1 is grounded, the G electrode of the MOS transistor Q1 is connected to the first end of the resistor R4 and the positive electrode of the diode D6, the negative electrode of the diode D6 is connected to the second end of the resistor R4, the second end of the resistor R4 is connected to the one I/O port of the single chip microcomputer, the second switch circuit includes a MOS transistor Q5, a diode D7 and a resistor R34, the D electrode of the MOS transistor Q5 is connected to the negative electrode of the second electric heating element, the S electrode of the MOS transistor Q5 is connected to the one I/O port of the second end of the resistor R34, and the second end of the diode R34 are connected to the diode R34.
In order to facilitate the driving motor operation, motor drive module is including motor drive chip and filter circuit, motor drive chip adopts the BQ13 chip, the INB1 pin and the INB2 pin of BQ13 chip are connected respectively the one-bit IO mouth of singlechip, the OUTA pin and the OUTA pin of BQ13 chip all are connected with the motor, be equipped with between the VCC pin and the VM pin of BQ13 chip filter circuit, the VCC pin and the VM pin of BQ13 chip all insert battery voltage VBAT, the GND pin ground connection of BQ13 chip.
In order to output power supply voltage VCC better, power module is including first input module, second input module and the module that steps up, first input module includes adapter voltage input circuit and adapter voltage detection circuit, adapter voltage input circuit is including the HT7550-1 chip, adapter voltage input circuit and adapter voltage detection circuit all insert adapter voltage VBUS, adapter voltage input circuit still with it connects to step up the module electricity, second input module includes battery voltage input circuit and battery voltage detection circuit, battery voltage input circuit and battery voltage detection circuit all insert battery voltage VBAT, battery voltage input circuit still with it connects to step up the module electricity, the output of the module that steps up exports power supply voltage VCC.
Preferably, the adapter voltage input circuit further includes a capacitor C21, a capacitor C23, a capacitor C25, a resistor R35, a diode D5, a resistor R8, and a diode Q4, a Vin terminal of the HT7550-1 chip is connected to the adapter voltage VBUS, a Vin terminal of the HT7550-1 chip is further connected to a first terminal of the capacitor C21, a second terminal of the capacitor C21 is grounded, a GND terminal of the HT7550-1 chip is grounded, a first terminal of the capacitor C23, a first terminal of the capacitor C25, a first terminal of the R35, a first terminal of the resistor R8, and a positive electrode of the diode D5 are all connected to a Vout terminal of the HT7550-1 chip, a second terminal of the capacitor C23, a second terminal of the capacitor C25, and a second terminal of the R35 are all grounded, a second terminal of the resistor R8 is connected to a B terminal of the triode Q4, a C terminal of the triode Q4 is connected to a one-bit I/O port of the single chip, an E terminal of the Q4 is grounded, a negative terminal of the battery voltage input circuit includes a negative electrode of the battery at 4, and a diode D5 is electrically connected to the diode D4, and a diode D5.
Preferably, the adapter voltage detection circuit includes a resistor R5, a resistor R19, a resistor R36, a capacitor C9, and a diode DW1, a first end of the resistor R19 is connected to the adapter voltage VBUS, a first end of the resistor R19 is respectively connected to the first end of the resistor R5 and the first end of the resistor R36, a first end of the capacitor C9 and a negative electrode of the diode DW1 are both connected to a second end of the resistor R36, a second end of the resistor R36 is further connected to a single-bit I/O port of the single chip microcomputer, a second end of the resistor R5, a second end of the capacitor C9, and a positive electrode of the diode DW1 are all grounded, the battery voltage detection circuit includes a resistor R3, a resistor R6, and a capacitor C8, a first end of the resistor R3 is connected to the positive electrode of the battery, a first end of the resistor R6 and a first end of the capacitor C8 are both connected to the second end of the resistor R3, a second end of the resistor R3 is further connected to the single-bit I/O port of the single-chip microcomputer, and a second end of the capacitor R8 are both grounded.
In order to better realize voltage boosting, the voltage boosting module includes a YB1214C chip, a capacitor C2, a capacitor C6, an inductor L1, a capacitor C4, a capacitor C3, and a capacitor E3, a first end of the capacitor C2, a first end of the capacitor C6, and a first end of the inductor L1 are connected to a cathode of the diode D4 and a cathode of the diode D5 respectively after being short-circuited, a second end of the L1 is connected to a Vin end of the YB1214C chip, a GND end of the YB1214C chip is grounded, a first end of the capacitor C4, a first end of the capacitor C3, and an anode of the capacitor E3 are all connected to a Vout end of the YB1214C chip, the Vout end of the YB1214C chip outputs the power supply voltage VCC, and a second end of the capacitor C2, a second end of the capacitor C6, a second end of the capacitor C4, a second end of the capacitor C3, and a cathode of the capacitor E3 are all grounded.
Preferably, the battery input module further includes a battery protection circuit, the battery protection circuit adopts a DW01 battery protection circuit, the battery is electrically connected with the DW01 battery protection circuit, the charging management module includes a charging management chip, the charging management chip adopts an FP8207 chip, the charging management module has a charging input end, a charging output end and a charging control end, the charging control end is connected with one-bit I/O port of the single chip microcomputer, the charging input end is connected to the adapter voltage VBUS, and the charging output end is connected to the positive electrode of the battery.
Preferably, the single chip microcomputer adopts an HT67F48x-44QFP chip.
In conclusion, the beneficial effects of the invention are as follows:
1. when the adaptor is connected, the adaptor defaults to output 5V/3A to charge the battery, after a user starts the hair curler product, the single chip port controls the PD protocol chip to request the adaptor to require 12V3A, simultaneously the charging loop is closed, the battery load loop is closed, the adaptor load loop is opened, the single chip port also controls the PD protocol chip to request 5V/3A to continue to charge the battery when the product is closed after use is finished, and the hair curler has the direct function of the adaptor by adding the protocol conversion function, so that the actual requirement can be better met;
2. the power consumption of a motor of the hair curler is low, only batteries are used for supplying power, the power consumption of an electric heating element of the hair curler is high, the electric heating element is divided into a first electric heating element and a second electric heating element which are independently arranged, the first electric heating element is supplied with power through the batteries, the single chip microcomputer can conveniently turn on or turn off the first electric heating element through a first switch circuit, the second electric heating element is directly connected with commercial power through an adapter for supplying power, and the single chip microcomputer can conveniently turn on or turn off the second electric heating element through a second switch circuit, so that a user can turn off a battery load loop through the control of the single chip microcomputer after starting a hair curler product, namely, turn off the first electric heating element, and turn on an adapter load loop, namely, turn on the second electric heating element;
3. the power supply module is arranged to better output the adapter voltage or the battery voltage to a power supply voltage VCC, so that the power supply voltage VCC can better supply power to the main control module;
4. the adapter voltage detection circuit is used for detecting the voltage of the adapter, when in actual use, some adapters do not have PD protocols, the voltage can not come out of 12V, the electric heating element can be controlled not to be turned on by detecting the voltage of the adapter, so that the adapter is protected, the battery voltage detection circuit is used for detecting the voltage of the battery, and the residual electric quantity of the battery can be conveniently known by detecting the voltage of the battery;
5. the main control module comprises a single chip microcomputer, the external power supply input module comprises a Type C port and a PD protocol chip, the single chip microcomputer adopts an HT67F48x-44QFP chip, the PD protocol chip adopts a CH224K chip, and a protocol conversion function can be well achieved.
The invention is further described with reference to the following figures and detailed description.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a circuit module frame according to the present invention;
FIG. 2 is a schematic circuit diagram of a PD protocol chip and a Type C port according to the present invention;
FIG. 3 is a truth table of the PD protocol chip of the invention;
FIG. 4 is a schematic circuit diagram of the single-chip microcomputer of the present invention;
FIG. 5 is a circuit diagram of a load module according to the present invention;
FIG. 6 is a circuit diagram of a power module according to the present invention;
FIG. 7 is a circuit diagram of a battery input module according to the present invention;
FIG. 8 is a circuit diagram of a charge management module according to the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 8 in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1 to 8, the hair curler circuit disclosed in this embodiment includes a main control module, a battery input module, a charging management module, an external power input module, a power module, and a load module, where the main control module includes a single chip, the external power input module includes a Type C port and a PD protocol chip, the battery input module is respectively electrically connected to the charging management module and the power module, the charging management module is further electrically connected to the single chip, an external PD protocol-supporting adapter is connected to an input end of the Type C port, an output end of the Type C port is respectively electrically connected to the PD protocol chip, the power module is further electrically connected to the main control module, the load module is respectively electrically connected to the single chip, the Type C port, and the battery input module includes a battery, a positive electrode of the battery outputs a battery voltage VBAT, an output end of the Type C port outputs an adapter voltage VBUS, and the power module outputs a power voltage VCC.
In the technical scheme, one end of the adapter is connected with mains supply, the other end of the adapter is connected with the input end of the Type C port, when the adapter is connected, the adapter outputs 5V/3A in a default mode and charges a battery in the battery input module through the charging management module, after a user starts a hair curler product, the single chip microcomputer of the main control module requests the adapter to require 12V/3A through the port control PD protocol chip, meanwhile, the charging management module is controlled to close the charging loop, and the load module is controlled to close the battery load loop and open the adapter load loop. In the invention, the protocol conversion function is realized by adding the PD protocol chip to the external power input module, and the single chip can control the PD protocol chip to request the adapter to output proper voltage, so that the rechargeable hair curler can be directly plugged into the adapter for use, namely, the rechargeable hair curler has the direct function of the adapter, and even if the electric quantity of the hair curler is very low or is completely exhausted, the hair curler can not be directly used by a user, thereby better meeting the actual requirement. In specific implementation, the main control module further includes a user operation interface, a display module, and the like, which refer to the prior art and are not further described herein. The Type C port and the adapter supporting the PD protocol both belong to the prior art, and are not specifically described herein.
In order to facilitate the realization of a protocol conversion function, the PD protocol chip adopts a CH224K chip, a CFG1 pin and a CFG3 pin of the CH224K chip are respectively connected to one bit of I/O port of the single chip microcomputer, a CFG2 pin of the CH224K chip is grounded, A4/B9 pin and a B4/A9 pin of the Type C port are output after being shorted, the adapter voltage VBUS is output, A1/B12 pin and a B1/a12 pin of the Type C port are both grounded, A4/B9 pin of the Type C port is connected to a first end of a resistor R24, a second end of the resistor R24 is connected to a VDD pin of the CH224K chip and a first end of a capacitor C25, a second end of the capacitor C25 is grounded, a GND pin of the CH224K chip is grounded, A5 pin of the Type C port is connected to a CC1 pin of the CH224K chip, a B5 pin of the Type C port is connected to a CC2 pin of the CH224K chip, and a DP pin of the CH224K chip are shorted to a DM pin. In this embodiment, after the pin A4/B9 and the pin B4/A9 of the Type C port are short-circuited, the voltage VBUS of the adapter is output, which is convenient for charging or directly supplies power to a load, the pin A5 of the Type C port is connected to the pin CC1 of the CH224K chip, the pin B5 of the Type C port is connected to the pin CC2 of the CH224K chip, so as to perform a protocol communication function, one I/O port of the single chip microcomputer can output a low level or a high level, and the truth tables respectively correspond to 0 or 1, ch224k chips, which can indicate that the PD protocol chip can request the adapter requirement of 5V if the pin CFG1 of the CH224K chip is connected to a high level, and when the pin CFG1 and the pin CFG2 of the CH224K chip are connected to a low level and the pin CFG3 of the CH224K chip is connected to a high level, the PD protocol chip can request the adapter requirement of 12V, which can be known that the CH224K chip can request the adapter requirement of 5V or 12V through the port control the CH224K chip, so as to well meet the actual battery charging requirement and the requirement for directly supplying power to the hair curler. Specifically, the Type C port is used as a charging outlet and PD protocol communication; r24 is a current-limiting resistor to keep the voltage of the PD protocol chip not more than 5.5V; c25 is a filter capacitor, so that high-frequency signals are prevented from breaking down the chip; u13 is PD protocol chip, and the conversion voltage of adapter is controlled by singlechip signal. The truth table for the CH224K chip refers to the accompanying drawing. The CH224K chip belongs to the prior art and is not specifically described herein.
As a preferred technical solution, the load module includes a heating module and a motor driving module, the heating module includes an electric heating element, a first switch circuit and a second switch circuit, the electric heating element is provided with two groups, which are divided into a first electric heating element and a second electric heating element, a positive electrode of the first electric heating element is connected to the battery voltage VBAT, the first switch circuit includes a MOS transistor Q1, a diode D6 and a resistor R4, a negative electrode of the MOS transistor Q1 is connected to a negative electrode of the first electric heating element, a negative electrode of the MOS transistor Q1 is connected to the ground, a positive electrode of the MOS transistor Q1 is connected to a first end of the resistor R4 and a positive electrode of the diode D6, a negative electrode of the diode D6 is connected to a second end of the resistor R4, a second end of the resistor R4 is connected to a single-bit I/O port of the single-chip microcomputer, the second switch circuit includes a MOS transistor Q5, a diode D7 and a resistor R34, the D electrode of the MOS transistor Q5 is connected to a negative electrode of the second end of the second electric heating element, the S electrode of the MOS transistor Q5 is connected to the ground, the G of the resistor Q5 is connected to a first end of the diode R34 and the positive electrode of the diode R34 are connected to a negative electrode of the single-bit I/O port of the single-chip microcomputer, and the resistor R34, and the single-chip microcomputer are connected to the diode 34, and the diode R34. In this embodiment, the load of the hair curler mainly includes a heating portion and a motor portion, which correspond to the heating module and the motor driving module, respectively, the heating module is provided with two groups of independent electric heating elements, which are a first electric heating element and a second electric heating element, the first electric heating element is powered by a battery and is switched on and off by a first switch circuit, when a one-bit I/O port of the single chip outputs a high level to a second end of the resistor R4, the circuit is switched on to start heating the first electric heating element, when the one-bit I/O port of the single chip outputs a low level to the second end of the resistor R4, the circuit is switched off to stop heating the first electric heating element, when the one-bit I/O port of the single chip outputs a high level to the second end of the resistor R34, the circuit is switched off to stop heating the second electric heating element, when the one-bit I/O port of the single chip outputs a low level to the second end of the resistor R34, and when the one-bit I/O port of the single chip outputs a low level to the second electric heating element, the second electric heating element is switched on to stop heating the heating element, and the battery load circuit is switched on when the single chip controls the single chip. Specifically, Q1 and Q5 are respectively used for controlling the on or off of the load loop; r34 and R4 are both current-limiting resistors of MOS tubes; d6 and D7 are used for providing a discharge loop when the MOS tube is closed so as to ensure that the load is quickly turned off. In fig. 5, 3.7VMCH + and 3.7 VMCH-represent the positive and negative poles, respectively, of the first electrocaloric element, and 12VMCH + and 12 VMCH-represent the positive and negative poles, respectively, of the second electrocaloric element.
In order to facilitate the driving motor operation, motor drive module is including motor drive chip and filter circuit, motor drive chip adopts the BQ13 chip, the INB1 pin and the INB2 pin of BQ13 chip are connected respectively the one-bit IO mouth of singlechip, the OUTA pin and the OUTA pin of BQ13 chip all are connected with the motor, be equipped with between the VCC pin and the VM pin of BQ13 chip filter circuit, the VCC pin and the VM pin of BQ13 chip all insert battery voltage VBAT, the GND pin ground connection of BQ13 chip. In this embodiment, the motor is powered by a battery, an INB1 pin and an INB2 pin of a BQ13 chip are respectively connected to an I/O port of a single chip, so that the single chip can control the motor to realize three states of forward rotation, reverse rotation and stop, an OUTA pin and an OUTA pin of the BQ13 chip are both connected with the motor to drive the motor to run, a filter circuit is composed of capacitors C5, C7, C10 and C11, and can well play a role in filtering, and the filter circuit can be specifically shown in the attached drawings. Specifically, C5, C7, C10, and C11 are all filter capacitors for preventing interference of external high-frequency signals; the BQ13 chip is a motor driving chip and provides three states of positive rotation, reverse rotation and stop for the motor. The BQ13 chip and the filter circuit both belong to the prior art, and are not specifically described herein.
In order to export power supply voltage VCC better, power module is including first input module, second input module and the module that steps up, first input module includes adapter voltage input circuit and adapter voltage detection circuit, adapter voltage input circuit is including HT7550-1 chip, adapter voltage input circuit and adapter voltage detection circuit all insert adapter voltage VBUS, adapter voltage input circuit still with the module electricity that steps up is connected, second input module includes battery voltage input circuit and battery voltage detection circuit, battery voltage input circuit and battery voltage detection circuit all insert battery voltage VBAT, battery voltage input circuit still with the module electricity that steps up is connected, the output of the module that steps up output power supply voltage VCC. In this embodiment, power module's first input module is used for inputing adapter voltage, and the second input module is used for inputing battery voltage, sets up adapter voltage detection circuit and is used for detecting adapter voltage, and some adapters do not have the PD agreement during the in-service use, and the voltage is 12V never, just can control not to open electric heating element through detecting adapter voltage to the protection adapter sets up battery voltage detection circuit and is used for detecting battery voltage, can conveniently know the residual capacity of battery through detecting battery voltage. Wherein, the HT7550-1 chip has the function of voltage stabilization, and if 12V is input, the rear-end chip can be directly burned out without voltage stabilization. The HT7550-1 chip belongs to the prior art and is not specifically described herein.
As a preferred technical solution, the adapter voltage input circuit further includes a capacitor C21, a capacitor C23, a capacitor C25, a resistor R35, a diode D5, a resistor R8, and a diode Q4, wherein the Vin terminal of the HT7550-1 chip is connected to the adapter voltage VBUS, the Vin terminal of the HT7550-1 chip is further connected to the first terminal of the capacitor C21, the second terminal of the capacitor C21 is grounded, the GND terminal of the HT7550-1 chip is grounded, the first terminal of the capacitor C23, the first terminal of the capacitor C25, the first terminal of the R35, the first terminal of the resistor R8, and the positive electrode of the diode D5 are all connected to the Vout terminal of the HT7550-1 chip, the second terminal of the capacitor C23, the second terminal of the capacitor C25, and the second terminal of the diode R35 are all grounded, the second terminal of the resistor R8 is connected to the B terminal of the triode Q4, the C terminal of the triode Q4 is connected to the one-bit I/O port of the single chip, the negative electrode E4 of the battery is electrically connected to the diode D4, and the negative electrode of the diode D5 is electrically connected to the diode D4, and the diode D4 is electrically connected to the battery, and the diode D4. In this embodiment, the adapter voltage can be better input by setting the adapter voltage input circuit, the battery voltage can be better input by setting the battery voltage input circuit, specifically, the HT7550-1 chip plays a role of voltage stabilization, the capacitor C21, the capacitor C23 and the capacitor C25 are all filter capacitors, and are used for preventing the interference of external high-frequency signals, the resistor R35 is used for discharging the capacitor after the adapter is taken away, the resistor R8 and the capacitor Q4 are used for detecting whether the adapter is connected, the one I/O port of the single chip is connected with the C pole of the triode Q4, so that the single chip can be conveniently detected, whether the adapter is connected mainly for judging which group of electric heating elements are heating and displaying different heating states, the diode D5 plays a role of adapter loop reverse recharging voltage, and the diode D4 plays a role of battery loop reverse recharging voltage.
As a preferred technical solution, the adapter voltage detection circuit includes a resistor R5, a resistor R19, a resistor R36, a capacitor C9, and a diode DW1, a first end of the resistor R19 is connected to the adapter voltage VBUS, a first end of the resistor R19 is connected to the first end of the resistor R5 and the first end of the resistor R36, a first end of the capacitor C9 and a negative electrode of the diode DW1 are both connected to a second end of the resistor R36, a second end of the resistor R36 is further connected to a single I/O port of the single chip microcomputer, a second end of the resistor R5, a second end of the capacitor C9, and an anode of the diode DW1 are all grounded, the battery voltage detection circuit includes a resistor R3, a resistor R6, and a capacitor C8, a first end of the resistor R3 is connected to the anode of the battery, a first end of the resistor R6 and a first end of the capacitor C8 are all connected to the second end of the resistor R3, a second end of the resistor R3 is further connected to the single chip microcomputer, a second end of the resistor R6 and a second end of the capacitor C8 are both connected to the ground. In this embodiment, R19, R55 and R36 are voltage dividing resistors, C9 is a filter capacitor, and is used for preventing the interference of external high-frequency signals, DW1 is used for stabilizing voltage and ensuring that the voltage entering the inside of the single chip microcomputer does not exceed its operating voltage, the second end of the one-bit I/O port connecting resistor R36 of the single chip microcomputer can be convenient for detecting adapter voltage, R3 and R6 are voltage dividing resistors, C8 is a filter capacitor, and is used for preventing the interference of external high-frequency signals, and the second end of the one-bit I/O port connecting resistor R3 of the single chip microcomputer can be convenient for detecting battery voltage.
In order to better realize voltage boosting, the voltage boosting module includes a YB1214C chip, a capacitor C2, a capacitor C6, an inductor L1, a capacitor C4, a capacitor C3, and a capacitor E3, a first end of the capacitor C2, a first end of the capacitor C6, and a first end of the inductor L1 are connected to a cathode of the diode D4 and a cathode of the diode D5 respectively after being short-circuited, a second end of the L1 is connected to a Vin end of the YB1214C chip, a GND end of the YB1214C chip is grounded, a first end of the capacitor C4, a first end of the capacitor C3, and an anode of the capacitor E3 are all connected to a Vout end of the YB1214C chip, the Vout end of the YB1214C chip outputs the power supply voltage VCC, and a second end of the capacitor C2, a second end of the capacitor C6, a second end of the capacitor C4, a second end of the capacitor C3, and a cathode of the capacitor E3 are all grounded. In this embodiment, C6, C2, and L1 constitute an LC oscillation circuit, the oscillation circuit mainly plays a role of raising voltage, C4, C3, and E3 are all filter capacitors for preventing interference of external high frequency signals, and the YB1214C chip is a boost chip, inputs 1.8-5V, and outputs 5V. The YB1214C chip belongs to the prior art, and is not specifically described herein.
As a preferred technical solution, the battery input module further includes a battery protection circuit, the battery protection circuit adopts a DW01 battery protection circuit, the battery is electrically connected to the DW01 battery protection circuit, the charging management module includes a charging management chip, the charging management chip adopts an FP8207 chip, the charging management module has a charging input terminal, a charging output terminal and a charging control terminal, the charging control terminal is connected to one I/O port of the single chip microcomputer, the charging input terminal is connected to the adapter voltage VBUS, and the charging output terminal is connected to the positive electrode of the battery. In this embodiment, battery protection circuit adopts DW01 battery protection circuit can play effectual guard action to the battery, the adapter passes through Type C port and inserts the input end that charges with adapter voltage VBUS, export the positive pole of battery from the output that charges again, just so can charge to the battery, the charge control end can be closed or open the charging circuit according to actual demand more conveniently to the I/O mouth of singlechip connection, the management chip that charges adopts the FP8207 chip, both be convenient for charge better, the singlechip control of also being convenient for is closed or is opened the charging circuit. The battery input module and the charging management module may be implemented by referring to the prior art. The FP8207 chip and the DW01 battery protection circuit both belong to the prior art, and are not specifically described herein. In fig. 7, B + and B-represent the positive and negative electrodes of the battery, respectively.
As a preferred technical scheme, the single chip microcomputer adopts an HT67F48x-44QFP chip. IN this embodiment, the single chip microcomputer adopts HT67F48x-44QFP chip, the 41 th pin of the HT67F48x-44QFP chip is marked as M0, M0 is connected with the CFG3 pin of the CH224K chip, the 36 th pin of the HT67F48x-44QFP chip is marked as M1, M1 is connected with the CFG1 pin of the CH224K chip, the 40 th pin of the HT67F48x-44QFP chip is marked as U1-4, U1-4 is connected with the INB1 pin of the BQ13 chip, the 39 th pin of the HT67F48x-44QFP chip is marked as U1-5, U1-5 is connected with the INB2 pin of the BQ13 chip, the 37 th pin of the HT67F48x-44QFP chip is marked as HEART1, the second terminal of the HEART1 connection resistor R4, the 38 th pin of the HT67F48x-44QFP chip is labeled HEART2, the second terminal of the HEART2 connection resistor R34, the 2 nd pin of the HT67F48x-44QFP chip is labeled CD _ CON, the one terminal of the CD _ CON connection resistor R9, the 7 th pin of the HT67F48x-44QFP chip is labeled VBUS _ IN, the VBUS _ IN is connected with the C pole of the triode Q4, the 20 th pin of the HT67F48x-44QFP chip is labeled VBUS _ ADC, the second terminal of the VBUS _ ADC connection resistor R36, the 22 nd pin of the HT67F48x-44QFP chip is labeled Bat _ V, and the second terminal of the Bat _ V connection resistor R3. In this embodiment, the 2 nd pin of the HT67F48x-44QFP chip turns off the charge management chip, i.e., turns off the charge loop, when outputting a high level, and turns on the charge management chip, i.e., turns on the charge loop, when outputting a low level. In specific implementation, the 9 th, 10 th, 11 th and 12 th pins of the HT67F48x-44QFP chip are electrically connected with a user operation interface control circuit, the 23 th-35 th pins of the HT67F48x-44QFP chip are electrically connected with a display module for driving liquid crystal, the 19 th pin of the HT67F48x-44QFP chip is electrically connected with a buzzer circuit, the 21 st pin of the HT67F48x-44QFP chip is electrically connected with a temperature control module, the temperature control module adopts a thermistor for temperature measurement, the 15 th and 16 th pins of the HT67F48x-44QFP chip are electrically connected with a voltage stabilizing module for providing more stable detection reference voltage, and the 3 rd and 4 th pins of the HT67F48x-44QFP chip are used for a burning program. The HT67F48x-44QFP chip and the pin diagram thereof belong to the prior art and are not specifically described herein. The singlechip adopted in the specific implementation includes but is not limited to HT67F48x-44QFP chip.
IN the embodiment, M0 and M1 are used for controlling the CH224K chip change request voltage by a single chip microcomputer, HEART1 is used for controlling the first electrothermal element to be turned on or off by the single chip microcomputer, HEART2 is used for controlling the second electrothermal element to be turned on or off by the single chip microcomputer, VBUS _ ADC is used for detecting the voltage of the adapter by the single chip microcomputer, bat _ V is used for detecting the voltage of a battery by the single chip microcomputer, VBUS _ IN is used for detecting whether the adapter is connected by the single chip microcomputer, and CD _ CON is used for controlling the charging loop to be turned on or off by the single chip microcomputer.
The working principle is as follows: when the adaptor is connected, the adaptor defaults to output 5V/3A and charges the battery in the battery input module through the charging management module, when a user starts the hair curler product, the HT67F48x-44QFP chip requests 12V/3A of the adaptor requirement through M0 and M1 control CH224K chip, at the same time, the FP8207 chip is closed through CD _ CON to close the charging circuit, the BQ13 chip is controlled through U1-4 and U1-5 to drive the motor to run, the first electric heating element is controlled through HEART1 to close the first switch circuit, the second electric heating element is controlled through HEART2 to open the second electric heating element, so that when the adaptor is connected, the load can be directly powered through the adaptor, when the hair curler product is closed by the user, the motor and the electric heating element are both closed, the HT67F48x-44 chip requests 5V/3A of the adaptor requirement through M0 and M1 control CH224K chip, the QFP chip is switched on 8207 chip to open the charging circuit, and the hair curler can be charged when the hair curler is not used.
The skilled person should understand that: although the invention has been described in terms of the above specific embodiments, the inventive concept is not limited thereto and any modification applying the inventive concept is intended to be included within the scope of the patent claims.

Claims (8)

1. A curling iron circuit, comprising: the intelligent charging system comprises a main control module, a battery input module, a charging management module, an external power supply input module, a power supply module and a load module, wherein the main control module comprises a single chip microcomputer, the external power supply input module comprises a Type C port and a PD protocol chip, the battery input module is respectively electrically connected with the charging management module and the power supply module, the charging management module is also electrically connected with the single chip microcomputer, the input end of the Type C port is externally connected with an adapter supporting a PD protocol, the output end of the Type C port is respectively electrically connected with the PD protocol chip, the power supply module and the charging management module, the PD protocol chip is electrically connected with the single chip microcomputer, the power supply module is also electrically connected with the main control module, the load module is respectively electrically connected with the single chip microcomputer, the Type C port and the battery input module, the battery input module comprises a battery, the positive electrode of the battery outputs a battery voltage VBAT, the output end of the Type C port outputs an adapter voltage VBUS, and the power supply module outputs a power supply voltage VCC;
the PD protocol chip adopts a CH224K chip, a CFG1 pin and a CFG3 pin of the CH224K chip are respectively connected with a one-bit I/O port of the single chip microcomputer, a CFG2 pin of the CH224K chip is grounded, an A4/B9 pin and a B4/A9 pin of a Type C port are output with the adapter voltage VBUS after being short-circuited, an A1/B12 pin and a B1/A12 pin of the Type C port are both grounded, an A4/B9 pin of the Type C port is connected with a first end of a resistor R24, a second end of the resistor R24 is connected with a VDD pin of the CH224K chip and a first end of a capacitor C25, a second end of the capacitor C25 is grounded, a GND pin of the CH224K chip is grounded, an A5 pin of the Type C port is connected with a CC1 pin of the CH224K chip, a B5 pin of the Type C port is connected with a CC2 pin of the CH224K chip, and a short-circuited pin of the CH224K chip are connected with a DM pin;
the load module comprises a heating module and a motor driving module, the heating module comprises electric heating elements, a first switch circuit and a second switch circuit, the electric heating elements are divided into two groups, the positive electrode of the first electric heating element is connected to the battery voltage VBAT, the first switch circuit comprises an MOS tube Q1, a diode D6 and a resistor R4, the D electrode of the MOS tube Q1 is connected with the negative electrode of the first electric heating element, the S electrode of the MOS tube Q1 is grounded, the G electrode of the MOS tube Q1 is connected with the first end of the resistor R4 and the positive electrode of the diode D6, the negative electrode of the diode D6 is connected with the second end of the resistor R4, the second end of the resistor R4 is connected with an I/O port of the single chip microcomputer, the second switch circuit comprises an MOS tube Q5, a diode D7 and a resistor R34, the D electrode of the MOS tube Q5 is connected with the negative electrode of the second electric heating element, the S electrode of the MOS tube Q5 is grounded, the G electrode of the MOS tube Q5 is connected with the first end of the resistor R34 and the positive electrode of the resistor R7, and the second end of the diode R34 are connected with the second end of the diode R34, and the second end of the diode R34 are connected with the second end of the single chip microcomputer.
2. A curling iron circuit according to claim 1, wherein: the motor drive module is including motor drive chip and filter circuit, motor drive chip adopts the BQ13 chip, the INB1 pin and the INB2 pin of BQ13 chip are connected separately the one-bit IO mouth of singlechip, the OUTA pin and the OUTA pin of BQ13 chip all are connected with the motor, be equipped with between the VCC pin and the VM pin of BQ13 chip filter circuit, the VCC pin and the VM pin of BQ13 chip all insert battery voltage VBAT, the GND pin ground connection of BQ13 chip.
3. A curling iron circuit according to claim 1 or 2, wherein: the power module is including first input module, second input module and the module that steps up, first input module includes adapter voltage input circuit and adapter voltage detection circuitry, adapter voltage input circuit is including HT7550-1 chip, adapter voltage input circuit and adapter voltage detection circuitry all insert adapter voltage VBUS, adapter voltage input circuit still with the module electricity that steps up is connected, second input module includes battery voltage input circuit and battery voltage detection circuitry, battery voltage input circuit and battery voltage detection circuitry all insert battery voltage VBAT, battery voltage input circuit still with the module electricity that steps up is connected, the output of the module that steps up exports mains voltage VCC.
4. A curling iron circuit according to claim 3, wherein: the adapter voltage input circuit further comprises a capacitor C21, a capacitor C23, a capacitor C25, a resistor R35, a diode D5, a resistor R8 and a triode Q4, wherein the Vin end of the HT7550-1 chip is connected to the adapter voltage VBUS, the Vin end of the HT7550-1 chip is further connected to the first end of the capacitor C21, the second end of the capacitor C21 is grounded, the GND end of the HT7550-1 chip is grounded, the first end of the capacitor C23, the first end of the capacitor C25, the first end of the R35, the first end of the resistor R8 and the anode of the diode D5 are all connected to the Vout end of the HT7550-1 chip, the second end of the capacitor C23, the second end of the capacitor C25 and the second end of the R35 are all grounded, the second end of the resistor R8 is connected to the B pole of the triode Q4, the C pole of the triode Q4 is connected to the one-bit I/O port of the single chip, the E pole of the triode Q4 is grounded, the battery voltage input circuit comprises a battery voltage D4, and the cathode of the diode D4 is electrically connected to the diode D5, and the diode D4 is electrically connected to the anode of the diode D5 and the diode D4 of the diode D4.
5. The curling iron circuit of claim 4, wherein: the adapter voltage detection circuit comprises a resistor R5, a resistor R19, a resistor R36, a capacitor C9 and a diode DW1, wherein a first end of the resistor R19 is connected to the adapter voltage VBUS, a first end of the resistor R19 is respectively connected with a first end of the resistor R5 and a first end of the resistor R36, a first end of the capacitor C9 and a negative electrode of the diode DW1 are both connected with a second end of the resistor R36, a second end of the resistor R36 is also connected with a one-bit I/O port of the single chip microcomputer, a second end of the resistor R5, a second end of the capacitor C9 and a positive electrode of the diode DW1 are all grounded, the battery voltage detection circuit comprises a resistor R3, a resistor R6 and a capacitor C8, a first end of the resistor R3 is connected with a positive electrode of the battery, a first end of the resistor R6 and a first end of the capacitor C8 are both connected with a second end of the resistor R3, a second end of the resistor R3 is also connected with a one-bit I/O port of the single chip microcomputer, and a second end of the resistor R6 and a second end of the capacitor C8 are both grounded.
6. The curling iron circuit of claim 5, wherein: the boost module comprises a YB1214C chip, a capacitor C2, a capacitor C6, an inductor L1, a capacitor C4, a capacitor C3 and a capacitor E3, wherein a first end of the capacitor C2, a first end of the capacitor C6 and a first end of the inductor L1 are respectively connected with a cathode of the diode D4 and a cathode of the diode D5 after short-circuit, a second end of the L1 is connected with a Vin end of the YB1214C chip, a GND end of the YB1214C chip is grounded, a first end of the capacitor C4, a first end of the capacitor C3 and an anode of the capacitor E3 are all connected with a Vout end of the YB1214C chip, the Vout end of the YB1214C chip outputs the power supply voltage VCC, and a second end of the capacitor C2, a second end of the capacitor C6, a second end of the capacitor C4, a second end of the capacitor C3 and a cathode of the capacitor E3 are all grounded.
7. The curling iron circuit of claim 6, wherein: the battery input module further comprises a battery protection circuit, the battery protection circuit adopts a DW01 battery protection circuit, the battery is electrically connected with the DW01 battery protection circuit, the charging management module comprises a charging management chip, the charging management chip adopts an FP8207 chip, the charging management module is provided with a charging input end, a charging output end and a charging control end, the charging control end is connected with one I/O port of the single chip microcomputer, the charging input end is connected with the adapter voltage VBUS, and the charging output end is connected with the anode of the battery.
8. The curling iron circuit of claim 7, wherein: the single chip microcomputer adopts an HT67F48x-44QFP chip.
CN202110100932.3A 2021-01-26 2021-01-26 Hair curler circuit Active CN112865241B (en)

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Publication number Priority date Publication date Assignee Title
GB2500733B (en) * 2012-06-25 2014-05-21 Jemella Ltd Hair styling appliance
CN204928630U (en) * 2015-09-11 2015-12-30 厦门唯科健康科技有限公司 Control circuit of motor
CN205680089U (en) * 2016-05-27 2016-11-09 深圳市昂纬科技开发有限公司 A kind of signal processing circuit based on USB TYPE C interface
CN206462580U (en) * 2017-01-22 2017-09-05 祐富百胜宝电器（深圳）有限公司 A kind of control circuit for heater of hair straightener of perming
CN207664657U (en) * 2017-11-30 2018-07-27 东莞启益电器机械有限公司 Wireless curler control circuit based on lithium battery
CN209150775U (en) * 2019-01-07 2019-07-23 浙江金得利电器有限公司 A kind of hair iron that tape adapter unit directly can be used and be charged
CN212012206U (en) * 2019-07-22 2020-11-24 东莞市荣合电子有限公司 Circuit structure based on TYPE-C interface automatic identification multiple cell-phone protocol of filling soon

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Denomination of invention: A curler circuit

Granted publication date: 20221014

Pledgee: Agricultural Bank of China Limited Wenzhou Ouhai sub branch

Pledgor: Zhejiang Jindeli Electrical Appliances Co.,Ltd.

Registration number: Y2024980009013