A sterilizing cabinet and a door opening detection device thereof

Abstract

The application relates to a disinfection cabinet and a door opening detection device thereof, which comprises a first door opening detection module, a second door opening detection module and a main control module; one end of a disinfection lamp is connected with a first input end of the first door opening detection module, the other end of the disinfection lamp is connected with a second input end of the first door opening detection module, an output end of the first door opening detection module is connected with the main control module, and the first door opening detection module is used for detecting voltage signals at both ends of the disinfection lamp; an input end of the second door opening detection module is connected with an acceleration sensor, an output end of the second door opening detection module is connected with the main control module, and the second door opening detection module is used for detecting an electric signal output by the acceleration sensor; the technical scheme provided by the application can improve door opening detection precision, and the structure is simple and the cost is low.

Description

Technical Field

[0001] This application relates to the field of smart home appliance technology, and in particular to a disinfection cabinet and its door opening detection device. Background Technology

[0002] Existing door opening detection solutions for disinfection cabinets often employ methods such as door switches with spring contacts, tactile microswitches, Hall effect sensors, or reed switches combined with magnets. Since these solutions require door switches or magnets in conjunction with Hall effect sensors or reed switches, they are typically costly. Furthermore, the disinfection cabinet generates moisture during operation, and mechanical door switches and microswitches are often difficult to seal and waterproof. Moisture at the installation location can cause water ingress and failure of the contacts, resulting in poor waterproofing. Moreover, Hall effect sensors and reed switches combined with magnets are prone to magnetization and demagnetization issues. Utility Model Content

[0003] To address the problems of existing technologies, this application provides a technical solution for a disinfection cabinet and its door opening detection device. Specifically, this application sets up a first door opening detection module and a second door opening detection module. The first door opening detection module detects the voltage signal at both ends of the disinfection lamp, and the second door opening detection module detects the electrical signal output by the accelerometer. The main control module then uses the voltage signal at both ends of the disinfection lamp and the electrical signal output by the accelerometer to perform door opening detection, thereby improving the accuracy of door opening detection. The design is simple and the cost is low.

[0004] This application provides a door opening detection device for a disinfection cabinet. Specifically, the disinfection door of the disinfection cabinet is equipped with an acceleration sensor, and the door opening detection device includes a first door opening detection module, a second door opening detection module, and a main control module. The first input terminal of the first door opening detection module is connected to one end of the disinfection lamp, the second input terminal of the first door opening detection module is connected to the other end of the disinfection lamp, and the output terminal of the first door opening detection module is connected to the main control module. The first door opening detection module is used to detect the voltage signal at both ends of the disinfection lamp. The input terminal of the second door opening detection module is connected to the accelerometer, and the output terminal of the second door opening detection module is connected to the main control module. The second door opening detection module is used to detect the electrical signal output by the accelerometer.

[0005] Furthermore, the first door opening detection module includes a voltage divider unit, a half-wave rectifier unit, and a voltage clamping unit; One end of the rectifier diode in the half-wave rectifier unit is connected to one end of the disinfection lamp, and the other end of the half-wave rectifier unit is connected to the signal input terminal of the voltage clamping unit. The first end of the voltage divider unit is connected to the other end of the disinfection lamp, the second end of the voltage divider unit is connected to the other end of the rectifier diode, the third end of the voltage divider unit is connected to the signal input terminal of the voltage clamping unit, the clamping terminal of the voltage clamping unit is connected to the main control module, and the power supply terminal of the voltage clamping unit is used to connect to the power supply module.

[0006] Furthermore, the second door opening detection module includes a detection unit and a diversion unit; One end of the current shunt unit is connected to the power supply module, the other end of the current shunt unit is connected to the detection unit, the signal input end of the detection unit is connected to the acceleration sensor, and the signal output end of the detection unit is connected to the main control module.

[0007] Furthermore, the voltage divider unit includes a first resistor, a second resistor, and a third resistor; One end of the first resistor is connected to the negative terminal of the rectifier diode, and the other end of the first resistor is connected to one end of the third resistor and the signal input terminal of the voltage clamping unit through the second resistor. The other end of the third resistor is connected to the other end of the disinfection lamp.

[0008] Furthermore, the half-wave rectifier unit includes a rectifier diode and an electrolytic capacitor; The positive terminal of the rectifier diode is connected to one end of the disinfection lamp, the negative terminal of the rectifier diode is connected to the first resistor, the positive terminal of the electrolytic capacitor is connected to one end of the second resistor, the negative terminal of the electrolytic capacitor is connected to the other end of the third resistor and the other end of the disinfection lamp, and the electrolytic capacitor is connected in parallel with the third resistor.

[0009] Furthermore, the voltage clamping unit includes a clamping diode and a first capacitor; The negative terminal of the clamping diode is connected to the power supply module, the positive terminal of the clamping diode is connected to one end of the first capacitor and the main control module, and the other end of the first capacitor is connected to the negative terminal of the electrolytic capacitor.

[0010] Furthermore, the shunt unit includes a fourth resistor and a fifth resistor; One end of the fourth resistor and one end of the fifth resistor are both connected to the power supply module, and the other end of the fourth resistor and the other end of the fifth resistor are both connected to the detection unit. The fourth resistor and the fifth resistor are connected in parallel.

[0011] Furthermore, it also includes a disinfection lamp control module; The power input terminal of the disinfection lamp control module is used to connect to the power supply module, the control input terminal of the disinfection lamp control module is connected to the main control module, and the output terminal of the disinfection lamp control module is connected to the disinfection lamp.

[0012] Furthermore, the disinfection lamp control module includes a relay, a second capacitor, a transistor, a sixth resistor, and a seventh resistor; The power supply terminal of the relay is connected to the power supply module, the control terminal of the relay is connected to the disinfection lamp, the negative terminal of the second capacitor is connected to the power supply module, the relay and the second capacitor are connected in parallel, the other end of the relay is connected to the collector of the transistor, the emitter of the transistor is connected to one end of the sixth resistor and one end of the seventh resistor, the other end of the sixth resistor and the emitter of the transistor are both grounded, and the other end of the seventh resistor is connected to the main control module.

[0013] This application also provides a disinfection cabinet, which includes a disinfection cabinet body, a disinfection lamp, an acceleration sensor, and a door opening detection device as described above. The disinfection lamp and the door opening detection device are both disposed on the disinfection cabinet body, and the acceleration sensor is disposed on the disinfection door in the disinfection cabinet body.

[0014] Implementing this application will have the following beneficial effects: This application sets up a first door opening detection module and a second door opening detection module. The first door opening detection module detects the voltage signal at both ends of the disinfection lamp, and the second door opening detection module detects the electrical signal output by the accelerometer. The main control module can then perform door opening detection based on the voltage signal at both ends of the disinfection lamp and the electrical signal output by the accelerometer, thereby improving the accuracy of door opening detection. The application is also simple in structure and low in cost. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0016] Figure 1 A schematic diagram of the structure of a door opening detection device for a disinfection cabinet provided in an embodiment of this application; Figure 2 The circuit diagram corresponding to the first door opening detection module provided in the embodiments of this application; Figure 3The circuit diagram corresponding to the second door opening detection module provided in the embodiments of this application; Figure 4 This is a circuit diagram corresponding to the disinfection lamp control module provided in the embodiments of this application; Figure 5 Simulation diagram of the voltage waveforms at both ends of the disinfection lamp when the disinfection cabinet is working normally and the disinfection door is closed, according to the embodiment of this application. Figure 6 Simulation diagram of the voltage waveforms at both ends of the disinfection lamp when the disinfection door is in the open state, as provided in the embodiment of this application; In the figure, the corresponding labels are as follows: 1-First door opening detection module; 11-Voltage divider unit; 111-First resistor; 112-Second resistor; 113-Third resistor; 12-Half-wave rectifier unit; 121-Rectifier diode; 122-Electrolytic capacitor; 13-Voltage clamping unit; 131-Clamping diode; 132-First capacitor; 2-Second door opening detection module; 21-Detection unit; 22-Shunting unit; 221-Fourth resistor; 222-Fifth resistor; 3-Disinfection lamp control module; 31-Relay; 32-Second capacitor; 33-Transistor; 34-Sixth resistor; 35-Seventh resistor; 4-Disinfection lamp; 5-Acceleration sensor; 6-Main control module. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0018] It should be noted that, in this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0019] Hereinafter, embodiments will be described with reference to the accompanying drawings, which are not intended to limit the disclosure described in the claims.

[0020] Please see Figures 1-6 The following is combined with Figures 1-6This application provides a detailed description of a door opening detection device for a disinfection cabinet.

[0021] This application provides an embodiment of a disinfection cabinet door opening detection device, such as... Figures 1-6 As shown, specifically, the disinfection door of the disinfection cabinet is equipped with an acceleration sensor 5. The door opening detection device of the disinfection cabinet includes a first door opening detection module 1, a second door opening detection module 2, and a main control module 6. The first input terminal of the first door opening detection module 1 is connected to one end of the disinfection lamp 4, the second input terminal of the first door opening detection module 1 is connected to the other end of the disinfection lamp 4, and the output terminal of the first door opening detection module 1 is connected to the main control module 6. The first door opening detection module 1 is used to detect the voltage signal at both ends of the disinfection lamp 4. The input terminal of the second door opening detection module 2 is connected to the acceleration sensor 5, and the output terminal of the second door opening detection module 2 is connected to the main control module 6. The second door opening detection module 2 is used to detect the electrical signal output by the acceleration sensor 5.

[0022] In this embodiment, the first door opening detection module 1 is used to detect the voltage signal at both ends of the disinfection lamp 4 and then transmit the detected voltage signal to the main control module 6 so that the main control module 6 can determine whether the disinfection cabinet is open based on the voltage signal at both ends of the disinfection lamp 4. It should be noted that the detection result of the first door opening detection module 1 is more accurate when the disinfection lamp 4 is in working state, thus eliminating the possibility that the door of the disinfection cabinet is open when the disinfection lamp 4 is in a stopped working state.

[0023] Furthermore, to further determine whether the disinfection cabinet is open when the disinfection lamp 4 is in a stopped state, the second door opening detection module 2 can detect the electrical signal output by the acceleration sensor 5 and transmit the detected electrical signal output by the acceleration sensor 5 to the main control module 6. The main control module 6 can then determine whether the disinfection cabinet is open based on the electrical signal output by the acceleration sensor 5. Thus, the main control module 6 can achieve accurate door opening detection based on the voltage signal at both ends of the disinfection lamp 4 and the electrical signal output by the acceleration sensor 5, thereby improving the door opening detection accuracy. The structure is simple and the cost is low.

[0024] It should be noted that when the second door opening detection module 2 detects an interrupt signal output by the accelerometer 5, there may be a misjudgment. For example, when the user touches the accelerometer 5 during cooking or makes a strong knocking motion on the operating table above the disinfection cabinet, it will also cause a change in the data of the accelerometer 5. When the second door opening detection module 2 detects an interrupt signal output by the accelerometer 5, it can control the disinfection lamp 4 to be in working state. Thus, based on the first door opening detection module 1 detecting the voltage signal at both ends of the disinfection lamp 4, it can further determine whether the disinfection cabinet is in the open state.

[0025] In other words, the main control module 6 can detect the state of the disinfection lamp 4. When the main control module 6 detects that the disinfection lamp 4 is in working condition, it can directly determine whether the disinfection cabinet is open based on the voltage signal across the disinfection lamp 4 detected by the first door opening detection module 1, thereby improving the accuracy of door opening detection. When the main control module 6 detects that the disinfection lamp 4 is in a stopped working condition, it can detect whether the electrical signal output by the acceleration sensor 5 is an interrupt signal through the second door opening detection module 2. When the electrical signal output by the acceleration sensor 5 is detected to be an interrupt signal, in order to avoid misjudgment, the main control module 6 controls the disinfection lamp 4 to be in working condition. At this time, the main control module 6 can ultimately determine whether the disinfection cabinet is open based on the voltage signal across the disinfection lamp 4 detected by the first door opening detection module 1.

[0026] It should be noted that the main control module 6 can autonomously control and detect the status of the disinfection lamps 4, as well as judge the detection data, thereby realizing the intelligent control and detection of the disinfection cabinet and improving the user experience.

[0027] In one alternative implementation, such as Figure 2 As shown, the first door opening detection module 1 includes a voltage divider unit 11, a half-wave rectifier unit 12, and a voltage clamping unit 13. One end of the rectifier diode 121 in the half-wave rectifier unit 12 is connected to one end of the disinfection lamp 4, and the other end of the half-wave rectifier unit 12 is connected to the signal input terminal of the voltage clamping unit 13. The first end of the voltage divider unit 11 is connected to the other end of the disinfection lamp 4, the second end of the voltage divider unit 11 is connected to the other end of the rectifier diode 121, the third end of the voltage divider unit 11 is connected to the signal input terminal of the voltage clamping unit 13, the clamping terminal of the voltage clamping unit 13 is connected to the main control module 6, and the power supply terminal of the voltage clamping unit 13 is used to connect to the power supply module.

[0028] In one specific implementation, please refer to [link to implementation details]. Figure 2 The voltage divider unit 11 includes a first resistor 111, a second resistor 112, and a third resistor 113; wherein, one end of the first resistor 111 is connected to the negative terminal of the rectifier diode 121, the other end of the first resistor 111 is connected to one end of the third resistor 113 and the signal input terminal of the voltage clamping unit 13 through the second resistor 112, and the other end of the third resistor 113 is connected to the other end of the disinfection lamp 4.

[0029] In one specific implementation, please refer to [link to implementation details]. Figure 2The half-wave rectifier unit 12 includes a rectifier diode 121 and an electrolytic capacitor 122. The positive terminal of the rectifier diode 121 is connected to one end of the disinfection lamp 4, the negative terminal of the rectifier diode 121 is connected to the first resistor 111, the positive terminal of the electrolytic capacitor 122 is connected to one end of the second resistor 112, the negative terminal of the electrolytic capacitor 122 is connected to the other end of the third resistor 113 and the other end of the disinfection lamp 4, and the electrolytic capacitor 122 and the third resistor 113 are connected in parallel.

[0030] In one specific implementation, please refer to [link to implementation details]. Figure 2 The voltage clamping unit 13 includes a clamping diode 131 and a first capacitor 132; wherein, the negative terminal of the clamping diode 131 is connected to the power supply module, the positive terminal of the clamping diode 131 is connected to one end of the first capacitor 132 and the main control module 6 respectively, and the other end of the first capacitor 132 is connected to the negative terminal of the electrolytic capacitor 122.

[0031] In the embodiments of this application, such as Figure 2 As shown, door opening detection interface 1 and door opening detection interface 2 are used to connect to the two ends of the disinfection lamp 4. Voltage divider unit 11 is used to divide the voltage signal across the disinfection lamp 4. Half-wave rectification unit 12 is used to perform half-wave rectification on the voltage signal across the disinfection lamp 4. Voltage clamping unit 13 is used to clamp the voltage signal across the disinfection lamp 4. Figure 2 The voltage value of the control interface is controlled to ensure that the voltage at that point does not exceed the upper limit of the input voltage of the main control module 6. In practical applications, the clamping diode 131 is used to clamp the voltage. If the input mains voltage is too high or there is a surge, the voltage value of the control interface will be higher than the normal operating voltage of the main control module 6. The clamping by the clamping diode 131 can ensure that the voltage of the control interface does not exceed the upper limit of the input voltage of the main control module 6. Furthermore, by setting the voltage divider unit 11, the half-wave rectifier unit 12 and the voltage clamping unit 13, the stability and reliability of the first door opening detection module 1 are improved.

[0032] In one specific embodiment, please refer to Figure 5 When the disinfection cabinet door is closed, the voltage signal across the disinfection lamp 4 is a sine wave. For further details, please refer to [link to relevant documentation]. Figure 6When the disinfection cabinet door is open or the disinfection lamp 4 is not in operation, the voltage signal across the disinfection lamp 4 is 0V. Therefore, when the mains voltage is 220V, after passing through the voltage divider unit 11, half-wave rectifier unit 12, and voltage clamping unit 13, the output voltage of the control interface is approximately 3.5V. The main control module 6 can then determine whether the disinfection door is open based on whether the detected voltage value is less than a preset voltage threshold. In one specific embodiment, the preset voltage threshold can be 2.5V. It should be noted that since the disinfection lamp 4 is not always in operation during disinfection and drying functions, when the relay controlling the operation of the disinfection lamp 4 is disconnected (i.e., the disinfection lamp 4 is not in operation), the voltage waveform across the door opening voltage detection point is also as shown. Figure 6 The 0V voltage shown will affect the normal detection of the first door opening detection module 1.

[0033] Furthermore, in practical applications, the main control module 6 determines whether the disinfection lamp 4 is in working condition. Thus, when the main control module 6 detects that the disinfection lamp 4 is in working condition and the detected voltage value is less than the preset voltage threshold, it can determine that the disinfection door is open. Alternatively, when the detected voltage value is less than the preset voltage threshold, the second door opening detection module 2 can further detect whether the acceleration sensor 5 outputs an interrupt signal. If an interrupt signal occurs, it can be directly determined that the disinfection door is open.

[0034] In one alternative implementation, such as Figure 3 As shown, the second door opening detection module 2 includes a detection unit 21 and a shunt unit 22; wherein, one end of the shunt unit 22 is used to connect to the power supply module, the other end of the shunt unit 22 is connected to the detection unit 21, the signal input end of the detection unit 21 is connected to the acceleration sensor 5, and the signal output end of the detection unit 21 is connected to the main control module 6.

[0035] In one specific implementation, please refer to [link to implementation details]. Figure 3 The shunt unit 22 includes a fourth resistor 221 and a fifth resistor 222; one end of the fourth resistor 221 and one end of the fifth resistor 222 are both connected to the power supply module, and the other end of the fourth resistor 221 and the other end of the fifth resistor 222 are both connected to the detection unit 21. The fourth resistor 221 and the fifth resistor 222 are connected in parallel.

[0036] In this embodiment, the detection unit 21 can be a detection chip, and the specific model of the detection chip is not specifically limited. The current splitting unit 22 is used to perform current splitting to improve the stability of the device. In a specific embodiment, the acceleration sensor 5 is installed on the disinfection door of the disinfection cabinet. Specifically, the acceleration sensor 5 is installed on the outside of the disinfection door. When the disinfection door is opened, the disinfection door has a horizontal displacement. At this time, the acceleration sensor 5 located on the disinfection door will output an interrupt signal. Thus, the second door opening detection module 2 can detect whether the acceleration sensor 5 outputs an interrupt signal to determine whether the disinfection door has been opened. It should be noted that... Relying solely on the interrupt signal output by the accelerometer 5 to determine if the disinfection door is open can lead to false alarms. For example, if a user touches the accelerometer 5 during cooking or makes a strong tapping motion on the operating table above the disinfection cabinet, it will cause a change in the data of the accelerometer 5. When the second door opening detection module 2 detects the interrupt signal output by the accelerometer 5, it can control the disinfection lamp 4 to be in working state. Then, it can further determine whether the disinfection cabinet is in an open state by detecting the voltage signal across the disinfection lamp 4 based on the first door opening detection module 1. If the detected voltage value is less than the preset voltage threshold, it can be determined that the disinfection door is open, thereby improving the detection accuracy.

[0037] In one alternative implementation, such as Figure 4 As shown, the door opening detection device of the disinfection cabinet also includes a disinfection lamp control module 3; wherein, the power input terminal of the disinfection lamp control module 3 is used to connect to the power supply module, the control input terminal of the disinfection lamp control module 3 is connected to the main control module 6, and the output terminal of the disinfection lamp control module 3 is connected to the disinfection lamp 4.

[0038] In this embodiment, the disinfection lamp control module 3 is used to control the state of the disinfection lamp 4. Specifically, it can start the disinfection lamp 4 to work, or control the disinfection lamp 4 to stop working. In a specific implementation, please refer to [link to implementation details]. Figure 4 The disinfection lamp control module 3 includes a relay 31, a second capacitor 32, a transistor 33, a sixth resistor 34, and a seventh resistor 35. The power supply terminal of the relay 31 is connected to the power supply module, the control terminal of the relay 31 is connected to the disinfection lamp 4, the negative terminal of the second capacitor 32 is connected to the power supply module, the relay 31 and the second capacitor 32 are connected in parallel, the other end of the relay 31 is connected to the collector of the transistor 33, the emitter of the transistor 33 is connected to one end of the sixth resistor 34 and one end of the seventh resistor 35, the other end of the sixth resistor 34 and the emitter of the transistor 33 are both grounded, and the other end of the seventh resistor 35 is connected to the main control module 6.

[0039] In this embodiment, when relay 31 is in the ON state, the mains power supplies power to the disinfection lamp 4, thereby enabling the disinfection lamp 4 to operate. When relay 31 is in the OFF state, the mains power stops supplying power to the disinfection lamp 4, thereby enabling the disinfection lamp 4 to stop operating. It should be noted that the ON or OFF state of relay 31 can be controlled by the main control module 6. Specifically, the main control module 6 can control the ON or OFF state of relay 31 based on the disinfection control interface. In a specific embodiment, the main control module 6 can send a high-potential control signal through the disinfection control interface. At this time, transistor 33 is in the ON state, thereby driving relay 31 to conduct. When the main control module 6 sends a low-potential control signal through the disinfection control interface, transistor 33 is in the OFF state, thereby enabling relay 31 to be in the OFF state.

[0040] The above embodiments of this application have the following beneficial effects: This application sets up a first door opening detection module and a second door opening detection module. The first door opening detection module detects the voltage signal at both ends of the disinfection lamp, and the second door opening detection module detects the electrical signal output by the accelerometer. The main control module can then perform door opening detection based on the voltage signal at both ends of the disinfection lamp and the electrical signal output by the accelerometer, thereby improving the accuracy of door opening detection. The application is also simple in structure and low in cost.

[0041] This application embodiment also provides a disinfection cabinet, which includes a disinfection cabinet body, a disinfection lamp 4, an acceleration sensor 5, and a door opening detection device as described above. The disinfection lamp 4 and the door opening detection device are both installed on the disinfection cabinet body, and the acceleration sensor 5 is installed on the disinfection door in the disinfection cabinet body. Since the disinfection cabinet has the above-mentioned door opening detection device, the disinfection cabinet in this embodiment should also have the same technical effect, which will not be described again here.

[0042] The structure shown in this embodiment is only a partial structure related to the solution of this application and does not constitute a limitation on the device to which the solution of this application is applied. Specific devices may include more or fewer components than shown, or combinations of certain components, or arrangements of different components. It should be understood that the methods, apparatuses, etc., disclosed in this embodiment can be implemented in other ways.

[0043] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A door opening detection device for a disinfection cabinet, characterized in that, The disinfection cabinet is equipped with an acceleration sensor (5) on the disinfection door, and the door opening detection device includes a first door opening detection module (1), a second door opening detection module (2) and a main control module (6); The first input terminal of the first door opening detection module (1) is connected to one end of the disinfection lamp (4), the second input terminal of the first door opening detection module (1) is connected to the other end of the disinfection lamp (4), and the output terminal of the first door opening detection module (1) is connected to the main control module (6). The first door opening detection module (1) is used to detect the voltage signal at both ends of the disinfection lamp (4). The input terminal of the second door opening detection module (2) is connected to the acceleration sensor (5), and the output terminal of the second door opening detection module (2) is connected to the main control module (6). The second door opening detection module (2) is used to detect the electrical signal output by the acceleration sensor (5).

2. The door opening detection device according to claim 1, characterized by The first door opening detection module (1) includes a voltage divider unit (11), a half-wave rectifier unit (12), and a voltage clamping unit (13); One end of the rectifier diode (121) in the half-wave rectifier unit (12) is connected to one end of the disinfection lamp (4), and the other end of the half-wave rectifier unit (12) is connected to the signal input terminal of the voltage clamping unit (13). The first end of the voltage divider unit (11) is connected to the other end of the disinfection lamp (4), the second end of the voltage divider unit (11) is connected to the other end of the rectifier diode (121), the third end of the voltage divider unit (11) is connected to the signal input terminal of the voltage clamping unit (13), the clamping terminal of the voltage clamping unit (13) is connected to the main control module (6), and the power supply terminal of the voltage clamping unit (13) is used to connect to the power supply module.

3. The door opening detection device according to claim 1, characterized by The second door opening detection module (2) includes a detection unit (21) and a diversion unit (22); One end of the shunt unit (22) is connected to the power supply module, and the other end of the shunt unit (22) is connected to the detection unit (21). The signal input end of the detection unit (21) is connected to the acceleration sensor (5), and the signal output end of the detection unit (21) is connected to the main control module (6).

4. The door opening detection device according to claim 2, characterized by The voltage divider unit (11) includes a first resistor (111), a second resistor (112), and a third resistor (113); One end of the first resistor (111) is connected to the negative terminal of the rectifier diode (121), and the other end of the first resistor (111) is connected to one end of the third resistor (113) and the signal input terminal of the voltage clamping unit (13) through the second resistor (112). The other end of the third resistor (113) is connected to the other end of the disinfection lamp (4).

5. The door opening detection device according to claim 4, characterized by The half-wave rectifier unit (12) includes a rectifier diode (121) and an electrolytic capacitor (122); The positive terminal of the rectifier diode (121) is connected to one end of the disinfection lamp (4), the negative terminal of the rectifier diode (121) is connected to the first resistor (111), the positive terminal of the electrolytic capacitor (122) is connected to one end of the second resistor (112), the negative terminal of the electrolytic capacitor (122) is connected to the other end of the third resistor (113) and the other end of the disinfection lamp (4), and the electrolytic capacitor (122) and the third resistor (113) are connected in parallel.

6. The door-open detecting device according to claim 5, characterized by The voltage clamping unit (13) includes a clamping diode (131) and a first capacitor (132); The negative terminal of the clamping diode (131) is connected to the power supply module, the positive terminal of the clamping diode (131) is connected to one end of the first capacitor (132) and the main control module (6), and the other end of the first capacitor (132) is connected to the negative terminal of the electrolytic capacitor (122).

7. The door opening detection device according to claim 3, characterized by The current shunt unit (22) includes a fourth resistor (221) and a fifth resistor (222); One end of the fourth resistor (221) and one end of the fifth resistor (222) are both connected to the power supply module, and the other end of the fourth resistor (221) and the other end of the fifth resistor (222) are both connected to the detection unit (21). The fourth resistor (221) and the fifth resistor (222) are connected in parallel.

8. The door-open detecting device according to claim 1, characterized by It also includes a disinfection lamp control module (3); The power input terminal of the disinfection lamp control module (3) is used to connect to the power supply module, the control input terminal of the disinfection lamp control module (3) is connected to the main control module (6), and the output terminal of the disinfection lamp control module (3) is connected to the disinfection lamp (4).

9. The door-open detecting device according to claim 8, characterized by The disinfection lamp control module (3) includes a relay (31), a second capacitor (32), a transistor (33), a sixth resistor (34), and a seventh resistor (35); The power supply terminal of the relay (31) is connected to the power supply module, the control terminal of the relay (31) is connected to the disinfection lamp (4), the negative terminal of the second capacitor (32) is connected to the power supply module, the relay (31) and the second capacitor (32) are connected in parallel, the other end of the relay (31) is connected to the collector of the transistor (33), the emitter of the transistor (33) is connected to one end of the sixth resistor (34) and one end of the seventh resistor (35), the other end of the sixth resistor (34) and the emitter of the transistor (33) are both grounded, and the other end of the seventh resistor (35) is connected to the main control module (6).

10. A sterilizer characterized by comprising: The disinfection cabinet includes a disinfection cabinet body, a disinfection lamp (4), an acceleration sensor (5), and a door opening detection device as described in any one of claims 1 to 9. The disinfection lamp (4) and the door opening detection device are both installed on the disinfection cabinet body, and the acceleration sensor (5) is installed on the disinfection door in the disinfection cabinet body.

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