Sterilizing and mildew-proof cabinet
By installing a disinfection circuit inside the cabinet and utilizing components such as a humidity sensor and a negative ion generator, the air inside the cabinet can be dried and disinfected in real time, solving the problem of mold growth caused by high humidity and keeping the cabinet dry and clean.
Patent Information
- Application Number
- CN202520074736.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Kitchen cabinets are prone to mold growth due to the high humidity of the environment in which they are used.
The system employs a disinfection circuit, including a humidity sensor, voltage comparison circuit, fan, heating wire, controller, and negative ion generation circuit. It detects humidity and performs air disinfection and drying when the humidity exceeds a threshold. After the humidity decreases, it generates negative ions for disinfection.
It effectively prevents mold growth inside cabinets and keeps the air dry and clean.
Smart Images

Figure CN223773364U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cabinet technology, and in particular to a disinfection and mildew prevention cabinet. Background Technology
[0002] Kitchen cabinets are an indispensable piece of furniture in the kitchen, providing not only storage space but also significantly impacting the overall aesthetics and functionality. Cabinets typically consist of the cabinet body, doors, countertops, and hardware, and come in a variety of designs that can be customized to suit the size and style of the kitchen. In terms of materials, there are many choices for cabinet doors and countertops, such as solid wood, particleboard, medium-density fiberboard (MDF), quartz stone, artificial stone, and stainless steel. Each material has its unique advantages and disadvantages; for example, solid wood is environmentally friendly and durable but more expensive, while artificial stone offers better value and is easier to clean. Cabinet design must consider ergonomics to ensure user comfort and convenience during cooking and storage. Whether in a traditional style or a modern minimalist approach, kitchen cabinets are an important element in showcasing personal taste and lifestyle.
[0003] However, due to the environment in which they are used, kitchen cabinets inevitably involve water use every day, and they must contain water pipes and other water supply structures. As a result, the cabinets are more prone to mold growth due to the high humidity.
[0004] Therefore, a disinfection and mildew-proof cabinet is proposed to solve or alleviate the above problems. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a disinfection and mildew prevention cabinet.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A disinfection and mildew-proof cabinet includes a cabinet body and a disinfection circuit. The disinfection circuit is installed inside the cabinet body. The disinfection circuit collects the humidity inside the cabinet body and performs disinfection and drying actions on the air inside the cabinet body when the humidity exceeds a threshold.
[0008] Preferably, the disinfection circuit includes
[0009] A humidity sensor is installed inside the cabinet, which collects the humidity of the air inside the cabinet and feeds back a humidity signal.
[0010] A voltage comparison circuit is provided, wherein the input terminal of the voltage comparison circuit is coupled to the output terminal of the humidity sensor, and the voltage comparison circuit outputs a comparison signal in response to the voltage of the humidity signal being greater than the voltage of a preset humidity reference signal.
[0011] Preferably, the disinfection circuit further includes
[0012] A fan is installed inside the cabinet and is used to guide the airflow inside the cabinet. The fan is powered through a second switch circuit.
[0013] A heating wire is installed inside the fan and is powered through a first switching circuit.
[0014] The controller has its input terminal coupled to the output terminal of the voltage comparison circuit, and each output terminal of the controller is coupled to the controlled terminal of the first switching circuit and the second switching circuit, respectively. The first switching circuit and the second switching circuit are controlled by the controller to energize the heating wire and the fan.
[0015] Preferably, the disinfection circuit further includes
[0016] The negative ion generating circuit is installed inside the cabinet. The negative ion generating circuit is powered through a third switch circuit. The controlled terminal of the third switch circuit is coupled to the output terminal of the controller. The third switch circuit is controlled by the controller to turn on the negative ion generating circuit after the humidity signal falls below the preset humidity reference signal in the voltage comparison circuit.
[0017] Preferably, the voltage comparison circuit includes a minimal circuit based on a voltage comparator LM393.
[0018] Preferably, the controller includes an STM32 microcontroller.
[0019] Preferably, the first switching circuit includes a first relay, the second switching circuit includes a second relay, and the third switching circuit includes a third relay.
[0020] This utility model has the following beneficial effects:
[0021] This invention uses a humidity sensor to detect the humidity inside the cabinet. When the humidity exceeds the standard, the controller outputs a signal to activate the heating wire and fan to heat and dry the air. After the humidity drops, the controller switches the signal to activate the negative ion generating circuit, which discharges to generate negative ions, eliminates air inside the cabinet, and prevents mold growth. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the structure of this utility model;
[0024] Figure 2 This is a structural block diagram of the disinfection circuit in this utility model;
[0025] Figure 3 This is a wiring diagram of the controller and voltage comparison circuit in this utility model;
[0026] Figure 4 This is the wiring diagram of the negative ion generating circuit in this utility model.
[0027] 1. Cabinet; 2. Humidity sensor; 3. Voltage comparison circuit; 4. Controller; 5. First switching circuit; 6. Heating wire; 7. Second switching circuit; 8. Fan; 9. Third switching circuit; 10. Negative ion generating circuit. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0031] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0032] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] A type of disinfection and mildew prevention cabinet, such as Figure 1 As shown, it includes a cabinet 1 and a disinfection circuit. The disinfection circuit is installed inside the cabinet 1. The disinfection circuit collects the humidity inside the cabinet 1 and performs disinfection and drying actions on the air inside the cabinet 1 when the humidity exceeds the threshold.
[0035] like Figure 2 As shown, the disinfection circuit includes a humidity sensor 2, a voltage comparison circuit 3, a fan 8, a heating wire 6, a controller 4, and a negative ion generating circuit 10. The voltage comparison circuit 3 includes a minimum circuit based on a voltage comparator LM393, the controller 4 includes an STM32 microcontroller, the first switch circuit 5 includes a first relay, the second switch circuit 7 includes a second relay, and the third switch circuit 9 includes a third relay.
[0036] Humidity sensor 2 is installed inside cabinet 1. Humidity sensor 2 collects the humidity of the air inside cabinet 1 and feeds back a humidity signal. The input terminal of voltage comparison circuit 3 is coupled to the output terminal of humidity sensor 2. Voltage comparison circuit 3 outputs a comparison signal after the voltage of the humidity signal exceeds the voltage of a preset humidity reference signal. Fan 8 is installed inside cabinet 1 to guide airflow within cabinet 1. Fan 8 is powered via a second switch circuit 7. Heating wire 6 is installed inside fan 8 and is powered via a first switch circuit 5. The input terminal of controller 4 is connected to voltage comparison circuit 3. The output terminals are coupled, and each output terminal of the controller 4 is coupled to the controlled terminals of the first switch circuit 5 and the second switch circuit 7 respectively. After being controlled by the controller 4, the first switch circuit 5 and the second switch circuit 7 control the heating wire 6 and the fan 8 to be energized. The negative ion generating circuit 10 is set inside the cabinet 1. The negative ion generating circuit 10 is energized through the third switch circuit 9. The controlled terminal of the third switch circuit 9 is coupled to the output terminal of the controller 4. After the humidity signal falls back to below the humidity reference signal preset in the voltage comparison circuit 3, the third switch circuit 9 is controlled by the controller 4 to conduct the negative ion generating circuit 10 to be energized.
[0037] When this utility model is in actual operation, if the humidity sensor 2 detects the air humidity inside the cabinet 1, the humidity sensor 2 can send a humidity signal to the voltage comparison circuit 3. When the voltage of the humidity reference signal in the voltage comparison circuit 3 is less than the voltage of the humidity signal, a comparison signal can be input to the controller 4. The controller 4 will then output the corresponding first control signal to the controlled terminal of the first switch circuit 5 and the controlled terminal of the second switch circuit 7, so that the power connection terminal and the ground terminal of the first switch circuit 5 are connected, and the power connection terminal and the ground terminal of the second switch circuit 7 are connected. At this time, the power supply can supply power to the heating wire 6 and the fan 8. In this way, the heating wire 6 heats the air inside the fan 8, and the fan 8 guides the air inside the cabinet 1 to flow, so that the air with high humidity can be heated and dried, thereby reducing the humidity of the air inside the cabinet 1.
[0038] When the humidity decreases, it means that the voltage of the humidity signal drops to the voltage of the preset humidity reference signal in the voltage comparison circuit 3. The controller 4 no longer sends the first control signal to the first switch circuit 5 and the second switch circuit 7, but sends the second control signal to the third switch circuit 9. This allows the power terminal and the ground terminal of the third switch circuit 9 to be connected, thereby energizing the negative ion generating circuit 10. The negative ion generating circuit 10 then generates negative ions by discharging into the air, thus completing the disinfection of the air inside the cabinet 1 and preventing mold growth inside the cabinet 1.
[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A disinfection and mildew-proof cabinet, characterized in that, It includes a cabinet (1) and a disinfection circuit. The disinfection circuit is installed inside the cabinet (1). The disinfection circuit collects the humidity inside the cabinet (1) and performs disinfection and drying actions on the air inside the cabinet (1) after the humidity exceeds the threshold. The disinfection circuit includes Humidity sensor (2), the humidity sensor (2) is installed inside the cabinet (1), the humidity sensor (2) collects the air humidity inside the cabinet (1) and feeds back the humidity signal; A voltage comparison circuit (3) is provided, the input terminal of which is coupled to the output terminal of the humidity sensor (2). The voltage comparison circuit (3) outputs a comparison signal in response to the voltage of the humidity signal being greater than the voltage of the preset humidity reference signal. Fan (8), the fan (8) is installed inside the cabinet (1), the fan (8) is used to guide the air flow inside the cabinet (1), and the fan (8) is powered by the second switch circuit (7); Heating wire (6) is installed inside the fan (8) and is powered through a first switching circuit (5); The controller (4) has its input terminal coupled to the output terminal of the voltage comparison circuit (3), and each output terminal of the controller (4) is coupled to the controlled terminal of the first switch circuit (5) and the second switch circuit (7). The first switch circuit (5) and the second switch circuit (7) are controlled by the controller (4) to energize the heating wire (6) and the fan (8). The negative ion generating circuit (10) is installed inside the cabinet (1). The negative ion generating circuit (10) is powered through a third switch circuit (9). The controlled end of the third switch circuit (9) is coupled to the output end of the controller (4). The third switch circuit (9) is powered on by the controller (4) after the humidity signal drops below the preset humidity reference signal in the voltage comparison circuit (3).
2. The disinfection and mildew-proof cabinet according to claim 1, characterized in that, The voltage comparison circuit (3) includes a minimal circuit based on the voltage comparator LM393.
3. The disinfection and mildew-proof cabinet according to claim 1, characterized in that, The controller (4) includes an STM32 microcontroller.
4. The disinfection and mildew-proof cabinet according to claim 1, characterized in that, The first switching circuit (5) includes a first relay, the second switching circuit (7) includes a second relay, and the third switching circuit (9) includes a third relay.