Medical waste cart germicidal lamp control circuit

Abstract

The utility model discloses a medical waste car germicidal lamp control circuit, including inverter, the output of inverter is connected with the germicidal lamp, one end of the input of inverter is connected with the first input port of power supply through contactor normally closed switch and first switch, the other end of the input of inverter is connected with the second input port of power supply directly, the second end of first switch is connected with the first end of contactor normally closed switch and the first end of button switch, the second end of button switch is connected with the first end of time relay coil and the first end of time relay normally open switch, the second end of time relay normally open switch is connected with the first end of contactor coil, the second end of time relay coil and the second end of contactor coil are connected with the second input port of power supply. The utility model has realized the timing control of germicidal lamp, and the circuit structure simple that the utility model adopts not only is convenient for management, still possesses reliable and safe characteristics.

Description

Technical Field

[0001] This utility model relates to the field of germicidal lamp control technology, specifically a germicidal lamp control circuit for medical waste vehicles. Background Technology

[0002] Medical waste may contain various infectious bacteria, viruses, and other pathogenic microorganisms. If not properly handled, these pathogens can easily spread, posing a serious threat to the environment and public health. To prevent medical waste from becoming a source of pathogen transmission during transportation, effective disinfection and sterilization treatment is necessary. Therefore, germicidal lamp technology has been applied to medical waste trucks to reduce the risk of pathogen transmission.

[0003] However, the germicidal lamps currently equipped on medical waste trucks have limited functionality, only having an on / off switch. Operators must rely on their own experience to estimate the sterilization time. Utility Model Content

[0004] The purpose of this invention is to improve and innovate upon the shortcomings and problems existing in the background technology, and to provide a control circuit for the germicidal lamp in a medical waste vehicle.

[0005] A control circuit for a germicidal lamp in a medical waste vehicle includes an inverter for converting 12V DC power to 220V AC power. The output terminal of the inverter is connected to the germicidal lamp. One end of the inverter's input terminal is connected to a first power input port via a normally closed contactor switch and a first switch. The other end of the inverter's input terminal is directly connected to a second power input port. The second end of the first switch is connected to the first end of the normally closed contactor switch and the first end of a push-button switch. The second end of the push-button switch is connected to the first end of a time relay coil and the first end of a normally open time relay switch. The second end of the normally open time relay switch is connected to the first end of the contactor coil. The second ends of the time relay coil and the contactor coil are connected to the second power input port.

[0006] A further proposed solution is to connect the output of the inverter to the germicidal lamp via a third switch.

[0007] A further embodiment is that the second end of the first switch is connected to the first end of the second switch, and the second end of the second switch is connected to the first end of the push-button switch.

[0008] A further embodiment is that the second terminal of the second switch is also connected to the first terminal of the normally open contactor switch, and the second terminal of the normally open contactor switch is connected to the first terminal of the time relay coil.

[0009] A further option is that the first switch, the second switch, and the third switch are all air switches.

[0010] A further embodiment is that the first power input port and the second power input port are used to connect to a 12V power supply on the chassis of the medical waste vehicle.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a control circuit for a germicidal lamp in a medical waste vehicle. Through the cooperation of a time relay coil, a contactor coil, a normally open time relay switch, a normally closed contactor switch, an inverter, and a germicidal lamp, the timing control of the germicidal lamp A1 can be realized, thereby realizing the timing control of the disinfection time. In addition, the circuit structure adopted by this utility model is simple, which is not only easy to manage, but also reliable and safe. Attached Figure Description

[0012] Figure 1 This utility model provides a structural diagram of a germicidal lamp control circuit for a medical waste vehicle.

[0013] Reference numerals: K1, First switch; K2, Second switch; K3, Third switch; K4, Normally closed contactor switch; K5, Normally open contactor switch; K6, Normally open time relay switch; K7, Pushbutton switch; SJ, Time relay coil; KA, Contactor coil; A1, Germicidal lamp; A2, Inverter; DC01, First power input port; DC02, Second power input port. Detailed Implementation

[0014] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0016] Please see Figure 1This utility model provides a control circuit for a germicidal lamp on a medical waste truck, including an inverter A2. The inverter operates based on power electronics technology, converting direct current (DC) to alternating current (AC) by rapidly switching the conduction states of electronic components. The specific process of converting DC to AC can be found in existing technologies and is not specifically limited here. In this embodiment, inverter A2 converts 12V DC to 220V AC. Specifically, the output terminal of inverter A2 is connected to germicidal lamp A1, enabling lamp A1 to operate under 220V AC. One input terminal of inverter A2 is connected to a first power input port DC01 via a normally closed contactor switch K4 and a first switch K1, while the other input terminal is directly connected to a second power input port DC02. The first and second power input ports DC01 and DC02 are connected to a 12V power supply on the chassis of the medical waste truck.

[0017] The second end of the first switch K1 is connected to the first end of the normally closed contactor switch K4, the first end of the push button switch K7, and the first end of the normally open contactor switch K5. The second end of the push button switch K7 is connected to the first end of the time relay coil SJ, the first end of the time relay normally open switch K6, and the second end of the normally open contactor switch K5. The second end of the time relay normally open switch K6 is connected to the first end of the contactor coil KA. The second ends of the time relay coil SJ and the second ends of the contactor coil KA are connected to the second power input port DC02.

[0018] It should be noted that when the contactor coil KA is not energized, its corresponding normally closed switch K4 is closed, and its corresponding normally open switch K5 is open. When the contactor coil KA is energized, the normally closed switch K4 opens, and the normally open switch K5 closes. By controlling the energization state of the contactor coil KA, the opening and closing states of the normally closed and normally open switches K4 and K5 can be controlled. Similarly, when the time relay coil SJ is not energized, its corresponding normally open switch K6 is open. When the time relay coil SJ is energized, its corresponding normally open switch K6 closes only after a certain period of time, thus achieving timing control.

[0019] It should be noted that in practical applications, intermediate relays can also be used as contactors, and those skilled in the art can determine this according to the actual situation, all of which are within the scope of protection of this application.

[0020] Optionally, the output terminal of the inverter A2 is connected to the germicidal lamp A1 via a third switch K3. The second terminal of the first switch K1 is connected to the first terminal of the second switch K2, and the second terminal of the second switch K2 is connected to the first terminal of the push-button switch K7 and the first terminal of the normally open contactor switch K5. The first switch K1, the second switch K2, and the third switch K3 are all air switches. Air switches have overload protection, short-circuit protection, and thermal overload protection functions. Setting the second switch K2 increases circuit safety. Setting the first switch K1 allows for convenient maintenance of the inverter after it is disconnected. Setting the third switch K3 allows for convenient maintenance of the germicidal lamp A1 after it is disconnected.

[0021] The working principle of this utility model is as follows: In specific use, close the first switch K1, the second switch K2, and the third switch K3, and press the button switch K7 to energize the time relay coil SJ; at this time, the normally closed contactor switch K4 remains closed, and the 12V power supply on the chassis of the medical waste vehicle provides 12V DC power to the inverter A1 through the normally closed contactor switch K4. The inverter A1 converts the 12V DC power to 220V AC power to power the germicidal lamp A1, enabling the germicidal lamp A1 to work; after the germicidal lamp A1 has worked for a preset time, the time relay coil SJ controls the normally open time relay switch K6 to close, and the normally open relay... When switch K6 is closed, the contactor coil KA is energized. Energization of KA causes the normally closed contactor switch K4 to change from closed to open, and the normally open contactor switch K5 to change from open to closed. Because the normally closed contactor switch K4 changes from closed to open, the circuit between the 12V power supply on the medical waste truck chassis and the inverter A1 is disconnected, causing the germicidal lamp A1 to stop working. This achieves timed control of the germicidal lamp A1 and the timed control of the disinfection period. Furthermore, the circuit structure used in this invention is simple, easy to manage, and reliable and safe.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model.

[0023] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0024] Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The reference to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily indicate the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application. Although embodiments of this utility model have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A control circuit for a germicidal lamp on a medical waste vehicle, characterized in that: The system includes an inverter (A2) for converting 12V DC to 220V AC. The output of the inverter (A2) is connected to a germicidal lamp (A1). One end of the input of the inverter (A2) is connected to the first power input port (DC01) via a normally closed contactor switch (K4) and a first switch (K1). The other end of the input of the inverter (A2) is directly connected to the second power input port (DC02). The second end of the first switch (K1) is connected to the first end of the normally closed contactor switch (K4) and the first end of the push-button switch (K7). The second end of the push-button switch (K7) is connected to the first end of the time relay coil (SJ) and the first end of the time relay normally open switch (K6). The second end of the time relay normally open switch (K6) is connected to the first end of the contactor coil (KA). The second ends of the time relay coil (SJ) and the contactor coil (KA) are connected to the second power input port.

2. The control circuit for a germicidal lamp on a medical waste vehicle according to claim 1, characterized in that: The output of the inverter (A2) is connected to the germicidal lamp (A1) via a third switch (K3).

3. The control circuit for a germicidal lamp in a medical waste vehicle according to claim 1, characterized in that: The second end of the first switch (K1) is connected to the first end of the second switch (K2), and the second end of the second switch (K2) is connected to the first end of the push-button switch (K7).

4. The control circuit for a germicidal lamp on a medical waste vehicle according to claim 3, characterized in that: The second terminal of the second switch (K2) is also connected to the first terminal of the normally open contactor switch (K5), and the second terminal of the normally open contactor switch (K5) is connected to the first terminal of the time relay coil (SJ).

5. The control circuit for a germicidal lamp in a medical waste vehicle according to claim 3, characterized in that: The first switch (K1), the second switch (K2), and the third switch (K3) are all air switches.

6. The control circuit for a germicidal lamp in a medical waste vehicle according to claim 1, characterized in that: The first power input port (DC01) and the second power input port (DC02) are used to connect to the 12V power supply on the chassis of the medical waste truck.

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