Contact lens cleaning circuit and contact lens cleaning box

Abstract

The present invention discloses a contact lens cleaning circuit and a contact lens cleaning box, wherein the contact lens cleaning circuit comprises a power supply circuit, a controller, a cleaning chamber circuit and a cleaning chamber circuit. Wherein: the cleaning chamber circuit comprises a positive electro-needle and a negative electro-needle, and the negative electro-needle is connected to the ground terminal via a resistor. The cleaning chamber circuit is connected between the power supply circuit and the positive electro-needle of the cleaning chamber circuit. The controller comprises a voltage acquisition terminal and a cleaning chamber circuit control terminal, wherein the voltage acquisition terminal is connected to the connection node between the resistor and the negative electro-needle, the cleaning chamber circuit control terminal is connected to the cleaning chamber circuit, the controller acquires the voltage value signal on the resistor via the voltage acquisition terminal, and generates a corresponding control signal based on the voltage value signal to control the cleaning chamber circuit. The circuit for contact lens cleaning provided by the present invention can realize automatic disconnection of the cleaning chamber electro-needle group and the power supply circuit when the cleaning liquid in the cleaning chamber is insufficient.

Description

Technical Field

[0001] The invention relates to a circuit for cleaning contact lenses, and also relates to a contact lens cleaning box of the circuit suitable for cleaning contact lenses. Background Art

[0002] Contact lenses, or corneal contact lenses, are lenses worn on the cornea of ​​the eyeball. In a narrow sense, contact lenses are used to correct vision or protect the eyes. Contact lenses include hard and soft lenses. They not only greatly improve the appearance and convenience of patients with refractive errors such as myopia, hyperopia, and astigmatism, but also provide a wide field of vision and realistic vision. In addition, they also play a special role in controlling the development of myopia and astigmatism in adolescents and treating special eye diseases.

[0003] Contact lenses are generally made of transparent materials such as silicone hydrogel, hydrated polymers (methyl methacrylate, hydroxyethyl methacrylate, glyceryl methacrylate, etc.). The industry has general and special requirements for the center thickness, oxygen permeability, diameter, refractive power of the optical zone, lens color, base curve, water content, etc.

[0004] Generally speaking, the permeability of contact lenses is a common problem that causes eye hypoxia, redness, swelling and disease. In addition, lenses are easily damaged, including lens dehydration, poor lens oxygen permeability, lens damage due to heat (such as fire), lens precipitation, lens pollution and even mold spots, lens material aging, lens damage and cracking, etc. The above situations affect the use of contact lenses and even cause damage to the eyes, including decreased eye resistance, visual fatigue, dry eyes, eye allergies, corneal abrasion, optic nerve paralysis, accelerated corneal aging, increased myopia, and aesthetically affecting personal image.

[0005] However, due to the widespread use of contact lenses, when contact lens wearers want to take them off for cleaning, they just put them in a contact lens liquid box for cleaning. This cleaning method cannot completely clean the surface of the contact lenses, which is easy to cause certain damage to the wearer's eyes and also reduces the wearer's clarity. If the contact lenses need to be cleaned, the wearer needs to take them to a specific place for targeted cleaning, which brings a lot of inconvenience to the wearer and increases the wearer's cost.

[0006] In view of the above-mentioned defects, the designer actively conducts research and innovation in order to create a circuit for contact lens cleaning and a contact lens case containing the circuit, so as to make it more valuable for industrial use. In the Chinese invention patent with the authorization announcement number CN204967610U, the designer proposes a circuit for contact lens cleaning and a contact lens case. The contact lens cleaning circuit can achieve a stable voltage output for the electric needle. When the stable output voltage can be guaranteed, when cleaning the contact lens, the voltage will not be too high and damage the lens, and at the same time, the contact lens can be cleaned.

[0007] However, the circuit and the contact lens case for cleaning contact lenses have the following defects: when there is no cleaning liquid or insufficient cleaning liquid in the cleaning chamber, the controller cannot generate any feedback signal, the power supply starts normally and performs the cleaning operation. In severe cases, the cleaning circuit will be damaged. Summary of the invention

[0008] In order to solve the above technical problems, the present invention provides a novel circuit for cleaning contact lenses and a contact lens cleaning box including the circuit. The specific technical solution of the present invention is as follows:

[0009] A circuit for cleaning contact lenses, comprising:

[0010] Power supply circuit;

[0011] Controller;

[0012] Cleaning chamber circuit;

[0013] A cleaning chamber electroacupuncture group, the cleaning chamber electroacupuncture group comprising at least one positive electroacupuncture and at least one negative electroacupuncture, the negative electroacupuncture being connected to the ground terminal via a resistor, wherein:

[0014] The cleaning chamber circuit is connected between the power supply circuit and the positive electric needle of the cleaning chamber electric needle group, and is used to connect the power supply circuit and the cleaning chamber electric needle group and supply power to the cleaning chamber electric needle group from the power supply circuit;

[0015] The controller includes a voltage acquisition terminal and a cleaning chamber circuit control terminal, the voltage acquisition terminal is connected to the connection node between the resistor and the negative electric needle, the cleaning chamber circuit control terminal is connected to the cleaning chamber circuit, and the controller controls the cleaning chamber circuit based on the voltage value signal on the voltage acquisition terminal to realize the on / off between the power supply circuit and the cleaning chamber electric needle group.

[0016] Furthermore, the controller compares the voltage value signal on the voltage acquisition end with a predetermined threshold value. When the voltage value signal on the voltage acquisition end is less than the predetermined threshold value, the controller outputs a shutdown control signal through the cleaning chamber circuit control end. The cleaning chamber circuit stops working after receiving the shutdown control signal, thereby disconnecting the power supply circuit from the cleaning chamber electric needle group.

[0017] Furthermore, the power supply circuit includes a power management circuit, a battery and a charging circuit, and the charging circuit includes a wired charging circuit and / or a wireless charging circuit.

[0018] Furthermore, the controller is also connected to a key circuit. After receiving a start signal from the key circuit, the controller compares the voltage value signal on the voltage acquisition end with a predetermined threshold value. When the voltage value signal on the voltage acquisition end is greater than or equal to the predetermined threshold value, the controller outputs a start control signal to the cleaning chamber circuit through the cleaning chamber circuit control end. The cleaning chamber circuit works normally after receiving the start control signal, thereby connecting the power supply circuit to the cleaning chamber electroacupuncture group.

[0019] Furthermore, it also includes an indicator light circuit connected to the controller. When the controller outputs a closing control signal to the cleaning chamber circuit through the cleaning chamber circuit control end, the controller simultaneously outputs an indicator light closing control signal to stop the indicator light circuit from working.

[0020] Furthermore, the controller is also connected to an LED breathing light circuit. When the controller outputs a closing control signal to the cleaning chamber circuit through the cleaning chamber circuit control end, the controller simultaneously outputs an LED breathing light closing control signal to stop the LED breathing light circuit from working.

[0021] Furthermore, the LED breathing lamp circuit includes: a control switch; multiple LED lamp branches, each of the LED lamp branches includes a current limiting resistor and an LED lamp connected in series; one end of the multiple LED lamp branches is connected to the power supply end, and the other end of the multiple LED lamp branches is grounded through the control switch; the control switch is also connected to the controller, and the controller outputs a variable duty cycle signal to the control switch to control the on / off of the control switch.

[0022] A contact lens cleaning box, comprising a contact lens cleaning chamber and a contact lens cleaning circuit, wherein the contact lens cleaning circuit comprises:

[0023] Power supply circuit;

[0024] Controller;

[0025] Cleaning chamber circuit;

[0026] A cleaning chamber electroacupuncture group, the cleaning chamber electroacupuncture group comprising at least one positive electroacupuncture and at least one negative electroacupuncture, the negative electroacupuncture being connected to the ground terminal via a resistor, wherein:

[0027] The cleaning chamber circuit is connected between the power supply circuit and the positive electric needle of the cleaning chamber electric needle group, and is used to connect the power supply circuit and the cleaning chamber electric needle group and supply power to the cleaning chamber electric needle group from the power supply circuit;

[0028] The controller comprises a voltage acquisition terminal and a cleaning chamber circuit control terminal, wherein the voltage acquisition terminal is connected to the connection node between the resistor and the negative electro-needle, and the cleaning chamber circuit control terminal is connected to the cleaning chamber circuit. The controller controls the cleaning chamber circuit based on the voltage value signal on the voltage acquisition terminal to realize the on / off between the power supply circuit and the cleaning chamber electro-needle group;

[0029] Wherein: the positive electric needle and the negative electric needle are plugged into the inner wall of the contact lens cleaning chamber, and the positive electric needle and the negative electric needle are arranged at intervals.

[0030] It can be seen that the circuit for contact lens cleaning and the contact lens cleaning box including the circuit provided by the present invention can obtain the cleaning liquid condition in the cleaning chamber by setting a resistor and collecting the voltage value on the resistor. When the cleaning liquid in the cleaning chamber is insufficient, the cleaning chamber circuit is automatically disconnected from the power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a structural block diagram of the contact lens cleaning circuit of the present invention;

[0032] Figure 2 for Figure 1 A structural block diagram of a power supply circuit in one embodiment;

[0033] Figure 3 for Figure 1 A schematic diagram of the circuit structure of the controller in one embodiment;

[0034] Figure 4 for Figure 1 A schematic diagram of the circuit structure of the cleaning chamber circuit in one embodiment;

[0035] Figure 5 for Figure 1 A schematic diagram of the structure of the cleaning chamber electroacupuncture group in one embodiment;

[0036] Figure 6 for Figure 2 A schematic diagram of the circuit structure of a wired charging circuit in one embodiment;

[0037] Figure 7 for Figure 2A schematic diagram of the circuit structure of the wireless charging circuit in one embodiment;

[0038] Figure 8 for Figure 1 A schematic diagram of the circuit structure of the key circuit in one embodiment;

[0039] Fig. 9 for Figure 1 A schematic diagram of the circuit structure of the indicator light circuit in one embodiment;

[0040] Fig.10 FIG. 1 is a schematic diagram of the circuit structure of the LED breathing lamp circuit in one embodiment. DETAILED DESCRIPTION

[0041] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0042] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0043] The contact lens cleaning box includes a box body and a cleaning chamber installed in the box body, and at least one pair of positive and negative electric needles are arranged on the inner wall of the cleaning chamber. When the contact lenses need to be cleaned, the cleaning liquid is poured into the cleaning chamber and the contact lenses to be cleaned are immersed in the cleaning liquid, and then the power is turned on. A potential difference is generated between the positive and negative electric needles, and the charged protein particles adhering to the contact lenses are separated from the contact lenses due to the potential difference, and move toward one of the electric needles and adsorbed on the surface of the electric needle, thereby achieving the cleaning of the contact lenses.

[0044] It is easy to understand that when the cleaning fluid in the cleaning chamber is insufficient, the conductivity between the positive and negative needles decreases (equivalent to an increase in the resistance between the positive and negative needles). In extreme cases, when there is no cleaning fluid in the cleaning chamber, the circuit between the positive and negative needles is equivalent to being broken.

[0045] Based on the above principle, the present invention proposes a new contact lens cleaning circuit, which has a resistor connected in series between the negative electric needle and the ground terminal. By collecting the voltage value on the resistor, the voltage value between the positive electric needle and the negative electric needle in the cleaning chamber can be obtained accordingly (the voltage value between the positive electric needle and the negative electric needle ≈ the power supply voltage value - the voltage value on the resistor), thereby judging whether the cleaning fluid in the cleaning chamber is sufficient or not.

[0046] See also Figure 1 A contact lens cleaning circuit includes a power supply circuit 1, a controller 2, a cleaning chamber circuit 3 and a cleaning chamber electro-acupuncture group 4. The cleaning chamber electro-acupuncture group 4 includes at least one positive electro-acupuncture and one negative electro-acupuncture, and the negative electro-acupuncture is connected to the ground terminal via a resistor.

[0047] The cleaning chamber circuit 3 is connected between the power supply circuit 1 and the positive electric needle of the cleaning chamber electric needle group 4, and is used to connect the power supply circuit 1 and the cleaning chamber electric needle group 4 and provide the current output by the power supply circuit 1 to the cleaning chamber electric needle group 4.

[0048] The controller 2 includes a voltage collection end and a cleaning chamber circuit control end, the voltage collection end is connected to the connection node between the resistor and the negative electric needle, and the cleaning chamber circuit control end is connected to the cleaning chamber circuit 3. The controller 2 controls the cleaning chamber circuit 3 based on the voltage value signal on the voltage collection end to realize the on / off between the power supply circuit 1 and the cleaning chamber electric needle group 4.

[0049] Since the voltage signal supplied to the cleaning chamber by the cleaning chamber circuit 3 is divided into the cleaning chamber electro-needle group 4 and the resistor, when the cleaning liquid in the cleaning chamber becomes less (the conductivity between the positive and negative electro-needles of the cleaning chamber electro-needle group decreases), the voltage value divided on the cleaning chamber electro-needle group 4 increases, while the voltage value divided on the resistor decreases accordingly. The voltage acquisition terminal can obtain the voltage value information on the resistor, so the controller 2 can judge whether the cleaning liquid in the cleaning chamber is sufficient or not by comparing the voltage value on the voltage acquisition terminal with the predetermined threshold value, and on this basis, make corresponding control on the cleaning chamber circuit 3.

[0050] Specifically: when the voltage value on the voltage acquisition end is less than a predetermined threshold value (indicating that the cleaning fluid in the cleaning chamber is insufficient), the controller 2 outputs a shutdown control signal through the cleaning chamber circuit control end, and the cleaning chamber circuit 3 stops working after receiving the shutdown control signal, thereby causing the power supply circuit 1 to be unable to supply power to the cleaning chamber electroacupuncture group 4. When the voltage value on the resistor obtained by the voltage acquisition end is greater than a predetermined threshold value (indicating that the cleaning fluid in the cleaning chamber is sufficient), the controller 2 controls the cleaning chamber circuit 3 to work normally, and the power supply circuit 1 can supply power to the cleaning chamber electroacupuncture group 4 normally.

[0051] Embodiment 1

[0052] For the above-mentioned contact lens cleaning circuit, Figures 3 to 5 As shown, this embodiment uses a single chip microcomputer U1 of model N76E003 as the controller 2.

[0053] The cleaning chamber electro-needle group 3 includes two pairs of electro-needles, namely, a first positive electro-needle T1, a first negative electro-needle T2, a second positive electro-needle T3, and a second negative electro-needle T4. The output voltage signal VCC_5 of the cleaning chamber circuit 3 is connected to the first positive electro-needle T1 and the second positive electro-needle T3 respectively. A first resistor R9 is connected in series between the first negative electro-needle T2 and the ground terminal, and a second resistor R12 is connected in series between the second negative electro-needle T4 and the ground terminal.

[0054] Two of the pins of the controller 2 are used as voltage collection terminals, namely the first voltage collection terminal AIN1 and the second voltage collection terminal AIN0, wherein: the first voltage collection terminal AIN1 is connected to the connection node of the first negative electric needle T2 and the first resistor R9, and the first voltage collection terminal AIN1 is used to collect the voltage value on the first resistor R9. The second voltage collection terminal AIN0 is connected to the connection node of the second negative electric needle T4 and the second resistor R12, and the second voltage collection terminal AIN0 is used to collect the voltage value on the second resistor R12. It can be seen that the output voltage signal VCC_5 of the cleaning chamber circuit 3 flows through the first positive electric needle T1, the first negative electric needle T2, the first resistor R9, and the second positive electric needle T3, the second negative electric needle T4, and the second resistor R12 in two ways.

[0055] In this embodiment, the cleaning chamber circuit 3 uses a voltage multiplier chip U5 of model TC3200 as its core chip. The voltage multiplier chip U5 can boost the voltage output by the power supply circuit 1 and stably provide it to the cleaning chamber electroacupuncture group 4. Figure 3 and Figure 4 As shown, a pin (pin 13) of the controller 2 is used as a cleaning chamber circuit control terminal BOOST_EN, and the cleaning chamber circuit control terminal BOOST_EN is connected to the enable control terminal EN of the voltage multiplication chip U5.

[0056] As an exemplary description, in this embodiment, the input voltage after boosting by the cleaning chamber circuit 3 is 5V, and the predetermined threshold is 2V. When the voltage value on the first resistor R9 collected by the first voltage collection terminal AIN1 and the voltage value on the second resistor R12 collected by the second voltage collection terminal AIN0 are less than 2V (indicating that the cleaning fluid in the cleaning chamber is insufficient), the controller 2 sends a shutdown control signal (such as a low level) to the enable control terminal EN of the voltage multiplier chip U5, and the voltage multiplier chip U5 stops working. At this time, it is equivalent to that the cleaning chamber electro-needle group 4 is disconnected from the power supply circuit 1, and the power supply circuit 1 cannot realize normal power supply to the cleaning chamber electro-needle group 4. When the voltage value on the first resistor R9 collected by the first voltage collection terminal AIN1 and the voltage value on the second resistor R12 collected by the second voltage collection terminal AIN0 are greater than or equal to 2V (indicating that there is sufficient cleaning liquid in the cleaning chamber), at this time, the controller 2 outputs a high level to the enable control terminal EN of the voltage multiplier chip TC3200, and the voltage multiplier chip TC3200 can work normally. At this time, the power supply circuit 1 can realize normal power supply to the cleaning chamber electric needle group 4.

[0057] In some embodiments, the controller 2 is also connected to a key circuit 5. Preferably, the key circuit 5 can be a touch key circuit, which includes a touch button. When the user touches the touch button, the key circuit 5 sends a start signal to the controller 2. Figure 8 FIG. 1 shows a circuit structure diagram of a touch key circuit in a specific embodiment, which uses a touch chip U6 of model TTP223E as a core chip. Figure 3 and Figure 8 As shown, a pin (pin 20) of the controller 2 is used as a control terminal TP_SW of the touch button circuit, and the control terminal TP_SW is connected to the Q pin of the touch chip U6, so that the controller 2 controls the touch button circuit.

[0058] Preferably, after receiving the start signal sent by the button circuit 5, the controller 2 immediately compares the voltage value on the voltage acquisition end with the predetermined threshold and performs the following control: when the voltage value on the voltage acquisition end is greater than or equal to the predetermined threshold, the controller 2 outputs an enable control signal to the cleaning chamber circuit 3 through the cleaning chamber circuit control end, and the cleaning chamber circuit 3 starts working, thereby connecting the power supply circuit 1 to the cleaning chamber electric needle group 4.

[0059] In some embodiments, the controller 2 is also connected to an indicator light circuit 7, and the indicator light circuit 7 includes a plurality of indicator lights that display the working status of the cleaning chamber. Fig. 9FIG. 1 shows a circuit structure diagram of an indicator light circuit in a specific embodiment, wherein the indicator light circuit includes three LED indicator lights, namely a blue LED indicator light, a red LED indicator light and a green LED indicator light. Figure 3 and Fig. 9 As shown, three pins (pins 15, 16 and 17) of the controller 2 are used as LED indicator light control terminals, namely control terminal LED_B_CTRL, control terminal LED_G_CTRL and control terminal LED_R_CTRL, wherein: control terminals LED_B_CTRL, LED_G_CTRL and LED_R_CTRL are respectively connected to an LED indicator light, thereby realizing independent or joint control of each LED indicator light to realize different indication functions.

[0060] Preferably, when the controller 2 outputs a closing control signal to the cleaning chamber circuit 3 through the cleaning chamber circuit control terminal, the controller 2 simultaneously outputs an indicator light closing control signal to cause the indicator light circuit to stop working and all indicator lights are off.

[0061] In some embodiments, the controller 2 is further connected to an LED breathing light circuit 6, which includes one or more LED lights. During the cleaning process, under the control of the controller 2, the luminous intensity of the LED lights in the LED breathing light circuit 6 presents a gradual effect from bright to dark. Fig.10 The circuit structure diagram of the LED breathing lamp circuit 6 in a specific embodiment is shown. The LED breathing lamp circuit 6 includes a field effect tube Q7 of model CJ2302 and twelve LED lamp branches, each of which includes a current limiting resistor and a blue light LED lamp in series. Among them: one end of the twelve LED lamp branches is connected to the power supply end, the other end of the twelve LED lamp branches is connected to the drain of the field effect tube Q7, and the source of the field effect tube Q7 is grounded. A pin (pin 13) of the controller 2 is used as the LED breathing lamp control terminal LED_N_CTRL, and the control terminal LED_N_CTRL is connected to the gate of the field effect tube Q7. The controller 2 outputs a variable duty cycle signal through the control terminal LED_N_CTRL, thereby controlling the field effect tube Q7 to turn on and off according to a rule, and finally realizing the brightness change of each blue light LED lamp. It can be seen that the field effect transistor Q7 is equivalent to a control switch connected in series between the LED lamp branch and the ground terminal, which realizes regular on and off based on the variable duty cycle signal to achieve the brightness change of each blue light LED lamp.

[0062] Preferably, when the controller 2 outputs a closing control signal to the cleaning chamber circuit 3 through the cleaning chamber circuit control terminal, the controller 2 simultaneously outputs an LED breathing light closing control signal to stop the LED breathing light circuit from working.

[0063] In some preferred embodiments, Figure 2 As shown. The power supply circuit includes a power management circuit 14, a battery 13 and a charging circuit. The charging circuit includes a wired charging circuit 11 and a wireless charging circuit 12. The battery 13 is generally a lithium battery. The wired charging circuit 11 and the wireless charging circuit 12 can charge the battery 13, and finally the battery 13 is used for power supply.

[0064] It should be noted that the present invention does not limit the specific structure of the wired charging circuit 11 and the wireless charging circuit 12. When implementing the present invention, those skilled in the art may adopt the existing wired circuit structure and wireless circuit structure in the prior art. As a reference, those skilled in the art may adopt Figure 6 Wired charging circuit structure in Figure 7 Wireless charging circuit structure in.

[0065] Embodiment 2

[0066] A contact lens cleaning box comprises a box body, a contact lens cleaning chamber and a contact lens cleaning circuit arranged in the box body. The contact lens cleaning circuit is the contact lens cleaning circuit provided in the first embodiment. The positive and negative electric needles in the contact lens cleaning circuit are plugged into the inner wall of the contact lens cleaning chamber, and the positive and negative electric needles are arranged at intervals.

[0067] The contact lens cleaning box in the second embodiment is a specific product. A cleaning solution for cleaning contact lenses is placed in the contact lens cleaning chamber, and the positive and negative electric needles of the contact lens cleaning circuit are in the cleaning solution. When the power is turned on, a stable voltage is formed between the positive and negative electric needles, thereby cleaning the contact lenses. Simultaneously, the cleaning chamber inspection circuit in the contact lens cleaning circuit collects the voltage value on the resistor, and the controller determines whether the cleaning solution is sufficient based on the voltage collection value and sends a corresponding control signal.

[0068] Of course, in some embodiments, the cleaning chamber of the contact lens cleaning box is configured as a removable structure. When the cleaning chamber is removed from the contact lens cleaning box (equivalent to there being no cleaning fluid in the cleaning chamber), the controller outputs a shutdown control signal, and the cleaning chamber circuit stops working after receiving the shutdown control signal, thereby causing the power supply circuit to be unable to supply power to the cleaning chamber electroacupuncture group.

[0069] There are many implementation methods of the present invention, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A contact lens cleaning circuit, characterized in that: It includes: Power supply circuit; Controller; Cleaning chamber circuit; A cleaning chamber electroacupuncture group, the cleaning chamber electroacupuncture group comprising at least one positive electroacupuncture and at least one negative electroacupuncture, the negative electroacupuncture being connected to the ground terminal via a resistor, wherein: The cleaning chamber circuit is connected between the power supply circuit and the positive electric needle of the cleaning chamber electric needle group, and is used to connect the power supply circuit and the cleaning chamber electric needle group and supply power to the cleaning chamber electric needle group from the power supply circuit; The controller comprises a voltage acquisition terminal and a cleaning chamber circuit control terminal, wherein the voltage acquisition terminal is connected to the connection node between the resistor and the negative electro-needle, and the cleaning chamber circuit control terminal is connected to the cleaning chamber circuit. The controller controls the cleaning chamber circuit based on the voltage value signal on the voltage acquisition terminal to realize the on / off between the power supply circuit and the cleaning chamber electro-needle group; The controller compares the voltage value signal on the voltage acquisition terminal with a predetermined threshold value. When the voltage value signal on the voltage acquisition end is less than the predetermined threshold value, the controller outputs a shutdown control signal through the cleaning chamber circuit control end, and the cleaning chamber circuit stops working after receiving the shutdown control signal, thereby disconnecting the power supply circuit from the cleaning chamber electroacupuncture group; The controller is also connected to an LED breathing light circuit. When the controller outputs a closing control signal to the cleaning chamber circuit through the cleaning chamber circuit control terminal, the controller simultaneously outputs an LED breathing light closing control signal to stop the LED breathing light circuit from working; The LED breathing lamp circuit comprises: A control switch; A plurality of LED lamp branches, each of the LED lamp branches comprising a current limiting resistor and an LED lamp connected in series; One end of each of the plurality of LED lamp branches is connected to a power supply end, and the other end of each of the plurality of LED lamp branches is grounded via the control switch; The control switch is also connected to the controller, and the controller outputs a variable duty cycle signal to the control switch to control the on / off of the control switch; The cleaning chamber circuit (3) uses a voltage multiplier chip U5 of model TC3200 as its core chip. The voltage multiplier chip U5 can boost the voltage output by the power supply circuit (1) and stably supply it to the cleaning chamber electroacupuncture group (4).

2. The contact lens cleaning circuit according to claim 1, characterized in that: The power supply circuit includes a power management circuit, a battery and a charging circuit, and the charging circuit includes a wired charging circuit and / or a wireless charging circuit.

3. The contact lens cleaning circuit according to claim 1, characterized in that: The controller is also connected to a key circuit. After receiving a start signal from the key circuit, the controller compares the voltage value signal on the voltage acquisition terminal with a predetermined threshold value. When the voltage value signal on the voltage acquisition end is greater than or equal to a predetermined threshold, the controller outputs a start control signal to the cleaning chamber circuit through the cleaning chamber circuit control end. The cleaning chamber circuit operates normally after receiving the start control signal, thereby connecting the power supply circuit to the cleaning chamber electric needle group.

4. The contact lens cleaning circuit according to claim 1, characterized in that: It also includes an indicator light circuit connected to the controller, When the controller outputs a closing control signal to the cleaning chamber circuit through the cleaning chamber circuit control terminal, the controller simultaneously outputs an indicator light closing control signal to stop the indicator light circuit from working.

5. A contact lens cleaning box, comprising a contact lens cleaning chamber and a contact lens cleaning circuit, wherein the contact lens cleaning circuit is the contact lens cleaning circuit according to any one of claims 1 to 4, wherein: The positive electric needle and the negative electric needle are plugged into the inner wall of the contact lens cleaning chamber, and the positive electric needle and the negative electric needle are arranged at intervals.

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