Overcurrent protection circuit for lamp strip and bathroom cabinet

Abstract

The embodiment of the utility model provides an overcurrent protection circuit for a lamp strip and a bathroom cabinet, and belongs to the technical field of protection circuits. The over-current protection circuit is electrically connected between the lamp strip and the power supply circuit. The over-current protection circuit comprises a control module, an illumination driving module and a current detection module. The current detection module is electrically connected with the lamp strip, the illumination driving module is electrically connected with the lamp strip, and the control module is electrically connected with the illumination driving module and the current detection module. The current detection module is used for detecting the current of the lamp strip to obtain the lamp strip current; the control module is used for comparing the lamp strip current with a preset current threshold value to obtain a comparison result, and outputting a switch control signal according to the comparison result; and the illumination driving module is used for responding to the switch control signal to control the switch-off or switch-on between the lamp strip and the power supply circuit. According to the embodiment of the invention, the stability and safety of the lamp strip power supply circuit can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of protection circuits, and in particular to an overcurrent protection circuit for a light strip and a bathroom cabinet. Background Art

[0002] Currently, bathroom cabinets are often equipped with lighting devices, such as light strips. However, bathroom cabinets are installed in bathrooms, where the temperature and humidity are relatively high. This can easily cause short circuits in the light strips' power supply circuits, leading to excessive current in the power supply equipment. This, in turn, can lead to excessive power consumption in the circuits within the house, potentially causing fires and other unsafe situations.

[0003] Therefore, how to improve the stability and safety of the light strip power supply circuit has become a technical problem that needs to be solved urgently. Utility Model Content

[0004] The main purpose of the embodiments of the present application is to provide an overcurrent protection circuit and a bathroom cabinet for a light strip, aiming to improve the stability and safety of the light strip power supply circuit.

[0005] To achieve the above objectives, a first aspect of an embodiment of the present application provides an overcurrent protection circuit for a light strip, wherein the overcurrent protection circuit is electrically connected between the light strip and a power supply circuit, and comprises: a control module, a lighting driver module, and a current detection module;

[0006] The current detection module is electrically connected to the light strip, the lighting driving module is electrically connected to the light strip, and the control module is electrically connected to the lighting driving module and the current detection module;

[0007] The current detection module is used to: detect the current of the light strip to obtain the light strip current;

[0008] The control module is used to: compare the light strip current with a preset current threshold to obtain a comparison result, and output a switch control signal according to the comparison result;

[0009] The lighting driving module is used to control the connection between the light strip and the power supply circuit in response to the switch control signal.

[0010] In some embodiments, the lighting driving module includes: a first switch unit and a second switch unit;

[0011] The first switch unit is electrically connected to the light strip, the power supply circuit and the second switch unit, and the second switch unit is electrically connected to the control module;

[0012] The second switch unit is configured to: control the first switch unit to be turned off or on in response to the switch control signal;

[0013] The first switch unit is used to control the connection or disconnection between the light strip and the power supply circuit.

[0014] In some embodiments, the first switch unit includes: a MOS tube, a first resistor and a first voltage stabilizing diode;

[0015] The gate of the MOS tube is electrically connected to one end of the first resistor, the source of the MOS tube is electrically connected to the light strip, the drain of the MOS tube is grounded, the other end of the first resistor is electrically connected to the second switch unit and one end of the first voltage regulator diode, and the other end of the first voltage regulator diode is grounded.

[0016] In some embodiments, the second switch unit includes: a transistor, a second resistor, a third resistor, and a fourth resistor; the current detection module includes: a fifth resistor;

[0017] The base of the transistor is electrically connected to one end of the fourth resistor, the collector of the transistor is electrically connected to one end of the third resistor and one end of the second resistor, the emitter of the transistor is grounded, the other end of the second resistor is connected to the first resistor, the other end of the fourth resistor is electrically connected to the control module, and the other end of the third resistor is electrically connected to the power supply circuit.

[0018] In some embodiments, the control module includes: a control chip, a first capacitor, a second voltage-stabilizing diode, and a sixth resistor;

[0019] The control chip is electrically connected to the fourth resistor, the fifth resistor, one end of the second voltage-stabilizing diode, one end of the first capacitor and one end of the sixth resistor; the other end of the second voltage-stabilizing diode is grounded, the other end of the first capacitor is grounded, and the other end of the sixth resistor is electrically connected to the power supply circuit.

[0020] In some embodiments, the overcurrent protection circuit further includes: a light triggering module;

[0021] The light triggering module is electrically connected to the control module, and the light triggering module is used to: send a light triggering signal;

[0022] The control module is further configured to generate the switch control signal according to the light triggering signal.

[0023] In some embodiments, the light triggering module includes at least one of a button module, a human detection module, and a voice control module.

[0024] To achieve the above-mentioned object, a second aspect of an embodiment of the present application provides a bathroom cabinet, comprising: a cabinet body, a light strip, a power supply circuit, and the overcurrent protection circuit for the light strip described in the first aspect above;

[0025] The light strip is arranged on the cabinet, the light strip is electrically connected to the power supply circuit and the overcurrent protection circuit, and the overcurrent protection circuit is electrically connected to the power supply circuit.

[0026] In some embodiments, the bathroom cabinet further includes a defogging film and a mirror, and the overcurrent protection circuit further includes a defogging drive module;

[0027] The mirror is arranged on the cabinet, and the demisting driving module is electrically connected to the demisting film; the demisting driving module is used to control the demisting film to perform a demisting operation on the mirror.

[0028] In some embodiments, the bathroom cabinet further includes a temperature measurement module and a humidity measurement module;

[0029] The temperature measurement module is electrically connected to the overcurrent protection circuit, and the humidity measurement module is electrically connected to the overcurrent protection circuit; the temperature measurement module is used to detect temperature, and the humidity measurement module is used to detect humidity.

[0030] The overcurrent protection circuit for a light strip and a bathroom cabinet proposed in this application detects the current of the light strip through a current detection module. The control module compares the light strip current with a preset current threshold to obtain a comparison result, and outputs a switch control signal to the lighting driver module based on the comparison result, thereby controlling the disconnection or conduction between the light strip and the power supply circuit through the lighting driver module. It can be seen that the present application can automatically switch the disconnection or conduction state between the lighting driver module and the power supply circuit based on the relationship between the light strip current and the preset current threshold, thereby controlling the lighting and extinguishing of the light strip, realizing the overcurrent protection function, improving the stability and safety of the light strip power supply circuit, and improving the reliability of the bathroom cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a module block diagram of an overcurrent protection circuit for a light strip provided in an embodiment of the present application;

[0032] Figure 2 This is a module block diagram of an overcurrent protection circuit for a light strip provided in another embodiment of the present application;

[0033] Figure 3 This is a circuit schematic diagram of an overcurrent protection circuit for a light strip provided in one embodiment of the present application;

[0034] Figure 4 This is a module block diagram of an overcurrent protection circuit for a light strip provided in another embodiment of the present application;

[0035] Figure numerals: 10, overcurrent protection circuit; 20, light strip; 30, power supply circuit; 110, control module; 120, lighting drive module; 130, current detection module; 140, light trigger module; 121, first switch unit; 122, second switch unit; U1, control chip; C1, first capacitor; Q1, MOS tube; Q2, transistor; ZD1, first Zener diode; ZD2, second Zener diode; R1, first resistor; R2, second resistor; R3, third resistor; R4, fourth resistor; R5, fifth resistor; R6, sixth resistor. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0037] It should be noted that although the device schematics illustrate functional module divisions and the flowcharts illustrate logical sequences, in certain circumstances, the steps shown or described may be performed in a sequence that differs from the module divisions in the device or the sequence in the flowcharts. The terms "first," "second," and so on, in the specification, claims, and drawings, are used to distinguish similar items and are not necessarily used to describe a specific sequence or precedence.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein are for the purpose of describing the embodiments of this application only and are not intended to limit this application.

[0039] First, let’s analyze some of the terms used in this application:

[0040] Light strip: also known as light bar, is a lighting device that can be composed of multiple LED lamp beads.

[0041] The overcurrent protection circuit for the light strip and the bathroom cabinet provided in the embodiments of the present application are specifically illustrated through the following embodiments. First, the overcurrent protection circuit for the light strip in the embodiments of the present application is described.

[0042] Figure 1 This is an optional module block diagram of an overcurrent protection circuit for a light strip provided in an embodiment of the present application. The overcurrent protection circuit 10 is electrically connected between the light strip 20 and the power supply circuit 30. The overcurrent protection circuit 10 includes: a control module 110, a lighting driver module 120, and a current detection module 130;

[0043] The current detection module 130 is electrically connected to the light strip 20 , the lighting driver module 120 is electrically connected to the light strip 20 , and the control module 110 is electrically connected to the lighting driver module 120 and the current detection module 130 ;

[0044] The current detection module 130 is used to detect the current of the light strip 20 to obtain the light strip current;

[0045] The control module 110 is used to compare the current of the light strip with a preset current threshold to obtain a comparison result, and output a switch control signal according to the comparison result;

[0046] The lighting driving module 120 is used to control the connection between the light strip 20 and the power supply circuit 30 in response to a switch control signal.

[0047] The beneficial effects of the embodiments of the present application include, but are not limited to, detecting the current of the light strip 20 by the current detection module 130 to obtain the light strip current, comparing the light strip current with a preset current threshold value to obtain a comparison result, and outputting a switch control signal to the lighting driver module 120 based on the comparison result, thereby controlling the disconnection or conduction between the light strip 20 and the power supply circuit 30 through the lighting driver module 120. It can be seen that the present application can automatically switch the disconnection or conduction state between the lighting driver module 120 and the power supply circuit 30 based on the relationship between the light strip current and the preset current threshold value, thereby controlling the lighting and extinguishing of the light strip 20, realizing the overcurrent protection function, and improving the stability and safety of the light strip power supply circuit.

[0048] It should be noted that the power supply circuit 30 is electrically connected to the control module 110, the lighting driver module 120 and the light strip 20. Specifically, the light strip 20 may include a plurality of LED lamp beads. The power supply circuit 30 may include a battery.

[0049] It should be noted that the comparison result is used to indicate whether the light strip current is greater than or equal to the current threshold, or to indicate whether the light strip current is less than the current threshold. If the comparison result indicates that the light strip current is greater than or equal to the current threshold, the switch control signal is an off signal, and the lighting driver module 120 responds to the off signal and controls the light strip 20 to be disconnected from the power supply circuit 30 to prevent a short circuit caused by excessive current. If the comparison result indicates that the light strip current is less than the current threshold, the switch control signal is a on signal, and the lighting driver module 120 responds to the on signal and controls the light strip 20 to be connected to the power supply circuit 30, thereby allowing the light strip 20 to emit light normally.

[0050] See also Figure 2 ,In some embodiments, the lighting driving module 120 includes: a first switch unit 121 and a second switch unit 122;

[0051] The first switch unit 121 is electrically connected to the light strip 20, the power supply circuit 30 and the second switch unit 122, and the second switch unit 122 is electrically connected to the control module 110; the second switch unit 122 is used to: control the first switch unit 121 to be disconnected or connected in response to the switch control signal; the first switch unit 121 is used to: control the light strip 20 and the power supply circuit 30 to be disconnected or connected.

[0052] The advantage of this embodiment is that the second switch unit 122 controls the first switch unit 121 to be disconnected or connected, thereby controlling the light strip 20 and the power supply circuit 30 to be disconnected or connected through the first switch unit 121, thereby controlling the lighting and extinguishing of the light strip 20, realizing the overcurrent protection function and improving the stability and safety of the light strip power supply circuit.

[0053] In some embodiments, it should be noted that if the switch control signal is a high-level signal, the second switch unit 122 switches to the on state, thereby switching the first switch unit 121 to the off state, resulting in a disconnection between the light strip 20 and the power supply circuit 30, and the light strip 20 is in the off state. If the switch control signal is a low-level signal, the second switch unit 122 switches to the off state, thereby switching the first switch unit 121 to the on state, resulting in a connection between the light strip 20 and the power supply circuit 30, and the light strip 20 is in the lit state.

[0054] See also Figure 2 and Figure 3 In some embodiments, the first switch unit 121 includes: a MOS transistor Q1, a first resistor R1, and a first zener diode ZD1; the gate of the MOS transistor Q1 is electrically connected to one end of the first resistor R1, the source of the MOS transistor Q1 is electrically connected to the light strip 20, the drain of the MOS transistor Q1 is grounded, the other end of the first resistor R1 is electrically connected to the second switch unit 122 and one end of the first zener diode ZD1, and the other end of the first zener diode ZD1 is grounded.

[0055] The advantage of this embodiment is that the MOS transistor Q1 is used as the switching element in the first switch unit 121, and the second switch unit 122 is used to control the first switch unit 121 to be disconnected or connected, thereby controlling the connection between the light strip 20 and the power supply circuit 30 through the first switch unit 121, thereby controlling the lighting and extinguishing of the light strip 20, realizing the overcurrent protection function, and improving the stability and safety of the light strip power supply circuit.

[0056] See also Figure 2 and Figure 3In some embodiments, the second switch unit 122 includes: a transistor Q2, a second resistor R2, a third resistor R3 and a fourth resistor R4; the current detection module 130 includes: a fifth resistor R5; the base of the transistor Q2 is electrically connected to one end of the fourth resistor R4, the collector of the transistor Q2 is electrically connected to one end of the third resistor R3 and one end of the second resistor R2, the emitter of the transistor Q2 is grounded, the other end of the second resistor R2 is connected to the first resistor R1, the other end of the fourth resistor R4 is electrically connected to the control module 110, and the other end of the third resistor R3 is electrically connected to the power supply circuit 30.

[0057] The advantage of this embodiment is that the transistor Q2 is used as the switching element in the first switch unit 121, and the first switch unit 121 is controlled to be disconnected or connected through the second switch unit 122, thereby controlling the disconnection or connection between the light strip 20 and the power supply circuit 30 through the first switch unit 121, and further controlling the lighting and extinguishing of the light strip 20, thereby realizing the overcurrent protection function and improving the stability and safety of the light strip power supply circuit.

[0058] See also Figure 2 and Figure 3 In some embodiments, the control module 110 includes: a control chip U1, a first capacitor C1, a second voltage-stabilizing diode ZD2, and a sixth resistor R6; the control chip U1 is electrically connected to the fourth resistor R4, the fifth resistor R5, one end of the second voltage-stabilizing diode ZD2, one end of the first capacitor C1, and one end of the sixth resistor R6; the other end of the second voltage-stabilizing diode ZD2 is grounded, the other end of the first capacitor C1 is grounded, and the other end of the sixth resistor R6 is electrically connected to the power supply circuit 30.

[0059] The advantage of this embodiment is that the switch control signal is sent by the control chip U1, thereby controlling the first switch unit 121 and the second switch unit 122 to be disconnected or turned on, and then controlling the lighting and extinguishing of the light strip 20, realizing the overcurrent protection function and improving the stability and safety of the light strip power supply circuit.

[0060] Specifically, the control chip U1 may be an MCU (Microcontroller Unit, MCU for short).

[0061] It should be noted that in Figure 3 In the figure, BT represents the charging terminal, which is connected to the charging circuit. VI N represents the voltage regulator terminal, which is used to power the control chip U1, for example, it can provide a voltage of 5V. LED represents the light strip 20, specifically the lamp beads in the light strip 20. P1 represents the external interface, which can be connected to the light trigger module 140.

[0062] See also Figure 4In some embodiments, the overcurrent protection circuit 10 further includes: a light triggering module 140; the light triggering module 140 is electrically connected to the control module 110, and the light triggering module 140 is used to: send a light triggering signal; the control module 110 is also used to: output a switch control signal according to the light triggering signal.

[0063] The advantage of this embodiment is that the light triggering module 140 interacts with the user, thereby obtaining a control signal for turning the light on and off, thereby realizing on and off control of the light strip 20 .

[0064] It should be noted that the light triggering module 140 is connected to the external interface P1 (see Figure 3 ) is connected to the control chip U1, which sends the control signal to the control chip U1, so that the control chip U1 generates a switch control signal in response to the control signal. For example, if the control signal output by the light trigger module 140 is used to indicate turning off the light, the control chip U1 generates a disconnect signal in response to the control signal, thereby controlling the light strip 20 to turn off.

[0065] Specifically, the control signal output by the light triggering module 140 may be a PWM (Pulse Width Modulation) signal.

[0066] In some embodiments, the light triggering module 140 includes at least one of a button module, a human detection module, and a voice control module.

[0067] The advantage of this embodiment is that the light triggering module 140 interacts with the user, thereby obtaining a control signal for turning the light on and off, thereby realizing on and off control of the light strip 20 .

[0068] It should be noted that the button module is used to send a light triggering signal in response to a pressing action; the control module 110 is also used to output a switch control signal according to the button signal.

[0069] Specifically, the human body detection module includes at least one of an infrared sensing module for detecting infrared signals and sending a light triggering signal based on the infrared signals, and a microwave detection module for detecting microwave signals and sending a light triggering signal based on the microwave signals.

[0070] In one application example, the fifth resistor R5 is used to collect the light strip current, and the control chip U1 generates a switch control signal based on the light strip current. For example, if the switch control signal is high, transistor Q2 turns on, and the collector voltage of transistor Q2 is pulled down to a low level of 0.7V, causing the voltage of MOS transistor Q1 to fall below its startup voltage. MOS transistor Q1 is turned off, and the light strip 20 is turned off. Conversely, if the switch control signal is low, transistor Q2 is turned off, and the collector voltage of transistor Q2 is high, 12V, causing MOS transistor Q1 to turn on, and the light strip 20 is illuminated.

[0071] The advantage of this application example is that, in the lighting driver module 120, the disconnection or conduction state of the transistor Q2 is controlled by the control chip U1, thereby stably controlling the disconnection or conduction state of the MOS tube Q1 through the transistor Q2, thereby automatically switching the disconnection or conduction state between the light strip 20 and the power supply circuit 30 through the MOS tube Q1, thereby controlling the lighting and extinguishing of the light strip 20, realizing the overcurrent protection function, and improving the stability and safety of the light strip power supply circuit.

[0072] The embodiment of the present application further provides a bathroom cabinet, comprising: a cabinet body, a light strip 20, a power supply circuit 30 and the above-mentioned overcurrent protection circuit 10;

[0073] The light strip 20 is disposed in the cabinet. The light strip 20 is electrically connected to the power supply circuit 30 and the overcurrent protection circuit 10 . The overcurrent protection circuit 10 is electrically connected to the power supply circuit 30 .

[0074] In some embodiments, the bathroom cabinet also includes a defogger film and a mirror, and the overcurrent protection circuit 10 also includes a defogger drive module; the mirror is arranged on the cabinet body, and the defogger drive module is electrically connected to the defogger film; the defogger drive module is used to control the defogger film to perform a defogger operation on the mirror.

[0075] The advantage of this embodiment is that, through the defogging drive module, the defogging film can be controlled to perform a defogging operation on the mirror, thereby achieving a mirror defogging effect and improving the diversity of the bathroom cabinet.

[0076] It should be noted that controlling the defogging film to perform the defogging operation on the mirror may be controlling the temperature of the defogging film, thereby heating the mirror.

[0077] In some embodiments, the bathroom cabinet further includes a temperature measurement module and a humidity measurement module;

[0078] The temperature measurement module is electrically connected to the overcurrent protection circuit 10 , and the humidity measurement module is electrically connected to the overcurrent protection circuit 10 ; the temperature measurement module is used to detect temperature, and the humidity measurement module is used to detect humidity.

[0079] It should be noted that after the temperature and / or humidity are detected, the temperature and / or humidity can be sent to the user's mobile terminal (such as a mobile phone, laptop, etc.), so that the temperature and / or humidity data can be displayed on the mobile terminal.

[0080] Specifically, the temperature measurement module may be a temperature sensor, such as a thermistor; and the humidity measurement module may be a humidity sensor, such as a humidity resistor.

[0081] The specific implementation of the bathroom cabinet is basically the same as the specific embodiment of the overcurrent protection circuit for the light strip described above, and will not be repeated here.

[0082] The embodiments described in the embodiments of this application are intended to more clearly illustrate the technical solutions of the embodiments of this application and do not constitute a limitation on the technical solutions provided by the embodiments of this application. Those skilled in the art will appreciate that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0083] Those skilled in the art will understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of the present application, and may include more or fewer steps than shown in the figures, or a combination of certain steps, or different steps.

[0084] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, i.e., they may be located in one place or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of this embodiment.

[0085] Those skilled in the art will appreciate that the functional modules / units in the systems and devices disclosed above may be implemented as software, firmware, hardware, or appropriate combinations thereof.

[0086] The terms "first," "second," "third," "fourth," and the like (if any) in the specification of the present application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the numbers used in this manner are interchangeable where appropriate so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions, e.g., a system, product, or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or that are inherent to these products or devices.

[0087] It should be understood that in this application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0088] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the above-mentioned units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. The mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0089] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0090] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0091] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, and other media that can store programs.

[0092] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but are not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and essence of the present invention should be within the scope of the present invention.

Claims

1. An overcurrent protection circuit for a light strip, characterized in that: The overcurrent protection circuit is electrically connected between the light strip and the power supply circuit, and the overcurrent protection circuit includes: a control module, a lighting drive module and a current detection module; The current detection module is electrically connected to the light strip, the lighting driving module is electrically connected to the light strip, and the control module is electrically connected to the lighting driving module and the current detection module; The current detection module is used to: detect the current of the light strip to obtain the light strip current; The control module is used to: compare the light strip current with a preset current threshold to obtain a comparison result, and output a switch control signal according to the comparison result; The lighting driving module is used to control the connection between the light strip and the power supply circuit in response to the switch control signal.

2. The overcurrent protection circuit for a light strip according to claim 1, characterized in that: The lighting driving module includes: a first switch unit and a second switch unit; The first switch unit is electrically connected to the light strip, the power supply circuit and the second switch unit, and the second switch unit is electrically connected to the control module; The second switch unit is configured to: control the first switch unit to be turned off or on in response to the switch control signal; The first switch unit is used to control the connection or disconnection between the light strip and the power supply circuit.

3. The overcurrent protection circuit for a light strip according to claim 2, characterized in that: The first switch unit includes: a MOS tube, a first resistor and a first voltage stabilizing diode; The gate of the MOS tube is electrically connected to one end of the first resistor, the source of the MOS tube is electrically connected to the light strip, the drain of the MOS tube is grounded, the other end of the first resistor is electrically connected to the second switch unit and one end of the first voltage regulator diode, and the other end of the first voltage regulator diode is grounded.

4. The overcurrent protection circuit for a light strip according to claim 3, characterized in that: The second switch unit includes: a transistor, a second resistor, a third resistor and a fourth resistor; the current detection module includes: a fifth resistor; The base of the transistor is electrically connected to one end of the fourth resistor, the collector of the transistor is electrically connected to one end of the third resistor and one end of the second resistor, the emitter of the transistor is grounded, the other end of the second resistor is connected to the first resistor, the other end of the fourth resistor is electrically connected to the control module, and the other end of the third resistor is electrically connected to the power supply circuit.

5. The overcurrent protection circuit for a light strip according to claim 4, characterized in that: The control module includes: a control chip, a first capacitor, a second voltage-stabilizing diode and a sixth resistor; The control chip is electrically connected to the fourth resistor, the fifth resistor, one end of the second voltage-stabilizing diode, one end of the first capacitor and one end of the sixth resistor; the other end of the second voltage-stabilizing diode is grounded, the other end of the first capacitor is grounded, and the other end of the sixth resistor is electrically connected to the power supply circuit.

6. The overcurrent protection circuit for a light strip according to claim 1, characterized in that: The overcurrent protection circuit further includes: a light triggering module; The light triggering module is electrically connected to the control module, and the light triggering module is used to: send a light triggering signal; The control module is further configured to generate the switch control signal according to the light triggering signal.

7. The overcurrent protection circuit for a light strip according to claim 6, characterized in that: The light triggering module includes at least one of a button module, a human body detection module and a voice control module.

8. A bathroom cabinet, characterized in that: The bathroom cabinet comprises: a cabinet body, a light strip, a power supply circuit, and an overcurrent protection circuit for the light strip according to any one of claims 1 to 7; The light strip is arranged on the cabinet, the light strip is electrically connected to the power supply circuit and the overcurrent protection circuit, and the overcurrent protection circuit is electrically connected to the power supply circuit.

9. The bathroom cabinet according to claim 8, characterized in that: The bathroom cabinet further includes a defogging film and a mirror, and the overcurrent protection circuit further includes a defogging drive module; The mirror is arranged on the cabinet, and the demisting driving module is electrically connected to the demisting film; the demisting driving module is used to control the demisting film to perform a demisting operation on the mirror.

10. The bathroom cabinet according to claim 8, characterized in that: The bathroom cabinet also includes a temperature measurement module and a humidity measurement module; The temperature measurement module is electrically connected to the overcurrent protection circuit, and the humidity measurement module is electrically connected to the overcurrent protection circuit; the temperature measurement module is used to detect temperature, and the humidity measurement module is used to detect humidity.

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