Wireless straight hair curler control system

Abstract

The utility model relates to the technical field of hair curlers, in particular to a wireless straight hair curler control system and method, which comprises an external power supply, a battery power supply, a heating body loop, a boost-buck BOOST / BUCK circuit, a heating body switch Q1 and a heating body switch Q2. The battery power supply is connected with the buck-boost circuit and the switch Q1, the buck-boost circuit is connected with the heating body loop through the switch Q2, and the switch Q1 is also connected with the heating body loop. And the external power supply is connected with the switch Q2 through the charging detection circuit and then connected with the heating body loop. A double-heating-body mechanism is adopted, and cooperative work of the two heating bodies is ensured. When the power of the low-resistance loop is low, the system starts high-resistance loop compensation; otherwise, if the power of the high-resistance loop is insufficient, the low-resistance loop provides stronger power. According to the mechanism, the power stability is enhanced, the product performance is optimized, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hair curlers, in particular to a control system for a wireless hair straightener. Background Art

[0002] In the control scheme of traditional wireless hair straighteners, hair straightening combs and hair curlers, such as Figure 1 It is a common practice to drive the heating element directly from the battery as shown. The MCU drives the heating element by controlling the Q1 switch. The current flows from the positive electrode of the battery through Q1 and returns to the negative electrode of the battery through H1_1 and H2_1. However, this control circuit has high requirements on the performance of the heating element, and the power control is unstable, which is manifested in the large power impact when fully charged and the difficulty in maintaining the temperature when feeding. The number of batteries is positively correlated with the power output. For example, the power is 40W with one battery and 160W with four batteries. Considering that the resistance of the heating element increases by about 150% after the temperature rises, it is difficult to quickly return to temperature after the power is reduced.

[0003] In addition, this type of solution also has the problem of large loop loss, especially when the initial temperature loop current is greater than 10A, the loss is mainly concentrated on the line copper foil and the heating element lead. The large current not only makes it difficult to empty the battery during discharge, but also limits the direct push function due to the lack of suitable PDQC protocol power support.

[0004] Another control solution on the market, such as Figure 2 As shown, the MCU is used to control the synchronous boost circuit, first raising the voltage to an appropriate level, and then driving the heating element through the Q1 switch. This solution uses the BOOST method to boost the voltage, which improves the discharge efficiency, and the large current loop is mainly concentrated in the boost part, reducing the overall loss. When the boost efficiency reaches 95%, the battery can support a wide range of power discharge, such as one battery supports 30-40W, and four batteries support 160-180W. Due to the use of the BOOST circuit, the power output is more stable and the temperature recovery curve is better.

[0005] This solution also supports direct push of external PDQC protocol power supply and has stepless adjustment function of discharge power. However, the intelligent control of its heating element is not enough, and the power utilization and power output efficiency need to be improved. Therefore, this paper proposes an optimized wireless hair straightener control system and method to improve the shortcomings of the existing solution. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model discloses a wireless hair straightener control system and method, which are used to solve the above problems.

[0007] The utility model is realized through the following technical solutions:

[0008] In a first aspect, the utility model provides a wireless hair straightener control system, including an external power supply, a battery power supply and a heating element circuit, including a boost / bucket circuit, a heating element switch Q1 and a heating element switch Q2;

[0009] The battery power source is connected to the boost / bucket circuit and the heating element switch Q1, the boost / bucket circuit is connected to the heating element circuit via the heating element switch Q2, and the heating element switch Q1 is connected to the heating element circuit;

[0010] The external power source is connected to the heating element switch Q2 through a charging detection circuit, and the heating element switch Q2 is connected to the heating element circuit.

[0011] Furthermore, the heating element circuit includes a high-resistance heating element circuit and a low-resistance heating element circuit.

[0012] Furthermore, the heating element switch Q2 is connected to the high-resistance heating element circuit.

[0013] Furthermore, the heating element switch Q1 is connected to the low-resistance heating element circuit.

[0014] Furthermore, the external power supply is a TYPEC power supply.

[0015] Furthermore, the TYPEC power supply uses the PDQC protocol.

[0016] Furthermore, the external power supply is connected to the battery power supply via a boost / bucket circuit.

[0017] Furthermore, when the control system is in a constant temperature state, if the external power supply has excess power supply, the BUCK loop is enabled through the BOOST / BUCK circuit to supply power to the battery through the external power supply.

[0018] In a second aspect, the utility model provides a method for controlling a wireless hair straightener, wherein the control method uses the wireless hair straightener control system described in the first aspect, and the control method comprises the following steps:

[0019] When powered by a battery, the current first passes through the positive electrode of the battery, then flows through the heater switch Q1, then passes through the low-resistance heater to form a loop, and finally returns to the negative electrode of the battery; the other path is that the current starts from the positive electrode of the battery, first passes through the BOOST boost module, then flows through the heater switch Q2, forms a loop through the high-resistance heater and returns to the negative electrode of the battery;

[0020] When using an external power supply, the TYPEC power will directly pass through the heater switch Q2, then flow through the high-resistance heater loop, and finally return to the negative electrode of the battery;

[0021] During the heating stage, if no additional power is needed, the BOOST / BUCK circuit will stop working;

[0022] Under constant temperature conditions, if the external power supply provides excess power, the power will pass through the BOOST / BUCK circuit to enable the BUCK circuit, and then use the external power supply to charge the battery.

[0023] The beneficial effects of the utility model are:

[0024] In the wireless hair straightener control system of the utility model, the dual heating element mechanism ensures that the two can work together. When the power of the low-resistance circuit is low, the system will automatically start the high-resistance circuit for power compensation; conversely, in the galvanized state, if the power of the high-resistance circuit is insufficient, the low-resistance circuit will provide stronger power support. This mechanism significantly enhances the stability of power output and further optimizes the overall performance of the product, bringing users a better experience.

[0025] With the continuous evolution of battery technology, it is expected that the capacity of future solid-state batteries will reach 3 to 10 times that of existing batteries. Based on this technological advancement, personal care and hairdressing products will show higher safety, lightness and portability, and strong performance, bringing users a more excellent use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is the circuit schematic diagram of the traditional battery-driven heating element;

[0028] Figure 2 It is a circuit schematic diagram of a traditional improvement by controlling a synchronous boost circuit;

[0029] Figure 3 The utility model is a circuit schematic diagram of a wireless hair straightener control system. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In one embodiment, we introduce in detail a wireless hair straightener control system, which is designed to achieve efficient and stable energy management. The system mainly includes an external power supply, a battery power supply and a heating element circuit, wherein the heating element circuit is regulated by a boost / bucket circuit, a heating element switch Q1 and a heating element switch Q2.

[0032] Reference Figure 3 As shown, in this embodiment, the battery power supply is connected to the boost / bucket circuit and the heating element switch Q1 to ensure that the system can work stably when powered by the battery. At the same time, the boost / bucket circuit is connected to the heating element loop through the heating element switch Q2, and the heating element switch Q1 is also directly connected to the heating element loop, providing a flexible power management strategy for the system.

[0033] In one embodiment, the external power source is connected to the heating element switch Q2 through the charging detection circuit, thereby forming a path with the heating element circuit. This design ensures the stable flow of current when the system is powered by an external power source, thereby improving the safety and stability of the system.

[0034] In addition, the heating element circuit of this embodiment is subdivided into a high-resistance heating element circuit and a low-resistance heating element circuit. The heating element switch Q2 is connected to the high-resistance heating element circuit, while the heating element switch Q1 is connected to the low-resistance heating element circuit. This design enables the system to flexibly adjust the power output of the heating element according to different working requirements.

[0035] As a preferred embodiment of this invention, we use TYPEC power supply and use PDQC protocol for power management in the selection of external power supply. This choice not only ensures the stability and compatibility of the power supply, but also provides higher charging efficiency for the system.

[0036] In this embodiment, under certain circumstances, when the control system is in a constant temperature state and the external power supply has excess power supply, the system will enable the BUCK loop through the boost / buck circuit to store the excess power in the battery power supply. This design not only extends the battery life, but also improves the overall energy efficiency of the system.

[0037] The battery-powered process in this embodiment is as follows:

[0038] 1. The heating element is designed as a dual-path power supply structure. One path starts directly from the positive electrode of the battery, passes through Q1, passes through the low-resistance loops H1_1 and H2_1, and finally returns to the negative electrode of the battery;

[0039] 2. The other path starts from the positive electrode of the battery, first passes through the BOOST boost circuit for voltage boost, then passes through Q2, then flows through H2_1 and H2_2, and finally connects to the negative electrode of the battery. By integrating these two power supply paths, this embodiment can significantly increase the discharge power, achieving a power output of about 170% to 200% compared to a single circuit, significantly enhancing the performance of the system and providing users with an ultimate user experience.

[0040] In this embodiment, the working process of the external power supply is as follows:

[0041] 1. When using an external PDQC power supply, the TYPEC power supply will pass through the switch tube Q2 in sequence, then flow through Q2, H2_1 and H2_2, and finally return to the negative pole. At this time, the circuit is equivalent to the boost power supply of the BOOST line.

[0042] 2. If the battery is charged at this time, the low resistance circuit can also participate in the work.

[0043] 3. During the heating process, the BOOST / BUCK circuit will stop working due to the lack of additional power supply. However, under constant temperature conditions, if the external power supply has excess power available, the BOOST / BUCK circuit will be used to enable the BUCK loop to charge the battery using the external power supply.

[0044] In one embodiment, a method for controlling a wireless hair straightener is provided, comprising the following steps:

[0045] When powered by a battery, the current first passes through the positive electrode of the battery, then flows through the heater switch Q1, then passes through the low-resistance heater to form a loop, and finally returns to the negative electrode of the battery; the other path is that the current starts from the positive electrode of the battery, first passes through the BOOST boost module, then flows through the heater switch Q2, forms a loop through the high-resistance heater and returns to the negative electrode of the battery;

[0046] When using an external power supply, the TYPEC power will directly pass through the heater switch Q2, then flow through the high-resistance heater loop, and finally return to the negative electrode of the battery;

[0047] During the heating stage, if no additional power is needed, the BOOST / BUCK circuit will stop working;

[0048] Under constant temperature conditions, if the external power supply provides excess power, the power will pass through the BOOST / BUCK circuit to enable the BUCK circuit, and then use the external power supply to charge the battery.

[0049] In summary, in the wireless hair straightener control system of the utility model, the dual heating element mechanism ensures that the two can work together. When the power of the low-resistance circuit is low, the system will automatically start the high-resistance circuit for power compensation; conversely, in the galvanized state, if the power of the high-resistance circuit is insufficient, the low-resistance circuit will provide stronger power support. This mechanism significantly enhances the stability of power output and further optimizes the overall performance of the product, bringing users a better experience.

[0050] With the continuous evolution of battery technology, it is expected that the capacity of future solid-state batteries will reach 3 to 10 times that of existing batteries. Based on this technological advancement, personal care and hairdressing products will show higher safety, lightness and portability, and strong performance, bringing users a more excellent use experience.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wireless hair straightener control system, comprising an external power supply, a battery power supply and a heating element circuit, characterized in that: It includes a boost / bucket circuit, a heating element switch Q1 and a heating element switch Q2; The battery power source is connected to the boost / bucket circuit and the heating element switch Q1, the boost / bucket circuit is connected to the heating element circuit via the heating element switch Q2, and the heating element switch Q1 is connected to the heating element circuit; The external power source is connected to the heating element switch Q2 through a charging detection circuit, and the heating element switch Q2 is connected to the heating element circuit.

2. The wireless hair straightener control system according to claim 1, characterized in that: The heating element circuit includes a high-resistance heating element circuit and a low-resistance heating element circuit.

3. The wireless hair straightener control system according to claim 2, characterized in that: The heating element switch Q2 is connected to the high-resistance heating element circuit.

4. The wireless hair straightener control system according to claim 2, characterized in that: The heating element switch Q1 is connected to the low-resistance heating element circuit.

5. The wireless hair straightener control system according to claim 1, characterized in that: The external power supply is a TYPEC power supply.

6. The wireless hair straightener control system according to claim 5, characterized in that: The TYPEC power supply uses the PDQC protocol.

7. The wireless hair straightener control system according to claim 1, characterized in that: The external power supply is connected to the battery power supply via a boost / bucket circuit.

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