Portable lighting device for energy storage cabinet
By using a magnetic structure and a self-resetting normally open switch to control the portable lighting device, the LEDs are automatically turned on and off according to the ambient brightness. This solves the problems of energy waste and insufficient lighting range caused by the automatic on/off of the lights in the energy storage cabinet, and achieves convenient and efficient energy-saving lighting.
Patent Information
- Application Number
- CN202520203209.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-02-10
AI Technical Summary
The lights inside the energy storage cabinet turn on automatically when the ambient light is sufficient, resulting in wasted electricity and limited lighting range, which affects the commissioning work.
Design a portable lighting device that uses a magnetic structure for easy installation. Combine a self-resetting normally open switch and a phototransistor to automatically control the on and off of the light-emitting diodes according to the ambient brightness. The magnetic structure enables quick installation and removal, avoiding unnecessary power consumption.
It enables automatic adjustment of lighting based on ambient brightness, improving the convenience and energy efficiency of lighting effects, avoiding energy waste, and ensuring the smooth progress of commissioning work.
Smart Images
Figure CN223968009U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cabinet lighting technology, and in particular to a portable lighting device for energy storage cabinets. Background Technology
[0002] Currently, the internal lighting of energy storage cabinets typically illuminates automatically when the cabinet door is opened, regardless of whether the ambient light is sufficient, easily leading to energy waste. Furthermore, because the lighting fixtures are fixed in position, their illumination range is limited. As the functions of energy storage cabinets increase, the electrical components inside are gradually stacked, resulting in increasingly dense wiring harnesses and more and more partitions, thus affecting the lighting effect of the cabinet's internal lighting. Many areas suffer from insufficient illumination, hindering the normal progress of commissioning work. Utility Model Content
[0003] The purpose of this invention is to solve the problems existing in the prior art and provide a portable lighting device for energy storage cabinets, which is convenient to use, has good lighting effect, and is energy-saving and environmentally friendly.
[0004] The objective of this utility model is achieved through the following technical solution:
[0005] A portable lighting device for an energy storage cabinet includes a device body and a lighting control circuit. The lighting control circuit includes a power supply, a self-resetting normally open switch, a phototransistor, an NPN transistor, a relay, a light-emitting diode (LED), a unidirectional thyristor (SCR), and a time relay. The self-resetting normally open switch is connected to the power supply output terminal. The collector of the phototransistor is connected to the self-resetting normally open switch, and its emitter is connected to the base of the NPN transistor. The emitter of the NPN transistor is grounded. The coil of the relay is connected to the collector of the phototransistor and the collector of the NPN transistor. The anode of the SCR is connected to the self-resetting normally open switch, and its cathode is connected to the anode of the LED. The cathode of the LED is grounded. One end of the coil of the time relay is connected to the self-resetting normally open switch, and the other end is grounded. The normally closed switch of the relay and the normally open switch of the time relay are connected in series between the self-resetting normally open switch and the control electrode of the SCR. The LED and the self-resetting normally open switch are located on opposite sides of the device body, and a magnetic attraction structure is provided on the side where the self-resetting normally open switch is located.
[0006] Preferably, an air switch is provided between the power output terminal and the self-resetting normally open switch.
[0007] Preferably, the negative terminal of the self-resetting normally open switch is connected to a protective resistor.
[0008] Preferably, the magnetic attraction structure includes several magnet blocks evenly distributed on the side of the device body, and the self-resetting normally open switch is located in the middle of the several magnet blocks.
[0009] Preferably, the device body has several positioning grooves on its side, and the magnet block is located in the positioning groove.
[0010] The advantages of this utility model are:
[0011] 1. The lighting device can be quickly installed in the desired lighting location using a magnetic structure, ensuring the lighting effect;
[0012] 2. The self-resetting normally open switch, combined with the magnetic installation structure, enables the switch to be turned on when the device is installed and turned off when the device is removed, thereby improving the ease of use of the device.
[0013] 3. The lights can be turned on according to the ambient brightness of the actual installation location, which can effectively avoid the waste of electricity and is more energy-efficient and environmentally friendly. Attached Figure Description
[0014] Figure 1 A circuit diagram of a portable lighting device for an energy storage cabinet provided as an embodiment of this specification;
[0015] Figure 2 This is a schematic diagram of the rear structure of a portable lighting device for an energy storage cabinet, provided as an embodiment of this specification. Detailed Implementation
[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0017] like Figure 1As shown, this embodiment provides a portable lighting device for an energy storage cabinet, including a device body 1 and a lighting control circuit. The lighting control circuit includes a power supply, a self-resetting normally open switch SB, a phototransistor Q1, an NPN transistor Q2, a relay KM, a light-emitting diode D, a unidirectional silicon controlled rectifier (SCR), and a time relay KT. The self-resetting normally open switch SB is connected to the power supply output terminal. The collector of the phototransistor Q1 is connected to the self-resetting normally open switch SB, and the emitter is connected to the base of the NPN transistor Q2. The emitter of the NPN transistor Q2 is grounded. The coil of the relay KM is connected to the collectors of the phototransistor Q1 and the NPN transistor Q2. The anode of the unidirectional silicon controlled rectifier (SCR) is connected to the self-resetting normally open switch SB, and the cathode is connected to the positive terminal of the light-emitting diode D. The negative terminal of the light-emitting diode is grounded. One end of the coil of the time relay KT is connected to the self-resetting normally open switch SB, and the other end is grounded. The normally closed switch of the relay KM and the normally open switch of the time relay KT are connected in series between the self-resetting normally open switch SB and the control electrode of the SCR. The phototransistor Q1 and the light-emitting diode D are located on the front of the device body, and the self-resetting normally open switch SB is located on the back of the device body. The back of the device body is provided with a magnetic attraction structure for adsorption and installation on the energy storage cabinet. Since the energy storage cabinet has a grounding wire, the emitter of the NPN transistor Q2 is grounded through contact with the energy storage cabinet.
[0018] The operating principle of this embodiment is as follows: the device body is attached to the required position in the energy storage cabinet by magnetic attraction structure. Since the self-resetting normally open switch SB is on the same side as the magnetic attraction structure, when this side is attached to the energy storage cabinet, the self-resetting normally open switch SB comes into contact with the energy storage cabinet and closes.
[0019] If the ambient brightness is high, the current through phototransistor Q1 increases, causing Q1 to conduct. This forward-biased emitter junction and reverse-biased collector junction of NPN transistor Q2, making Q2 conduct as well. This energizes the coil of relay KM, causing its normally closed switch to open. Consequently, there is no voltage at the control electrode G of the unidirectional thyristor SCR. Even if there is a positive voltage between the anode A and cathode K of the unidirectional thyristor SCR, it cannot conduct, and the LED D will not emit light. Since the normally open switch of time relay KT is connected in series with the normally closed switch of relay KM, at the instant the self-resetting normally open switch SB closes, the normally open switch of time relay KT is in an open state. It only closes after a delay following the energization of its coil. Therefore, at the instant the self-resetting normally open switch SB closes, the control electrode G of the thyristor will not receive a pulse voltage, and the thyristor will not conduct.
[0020] If, during commissioning, the device is moved to a dark energy storage cabinet, or if the ambient brightness decreases over time, the current through phototransistor Q1 will be very small and negligible. Phototransistor Q1 will essentially be cut off, NPN transistor Q2 will be cut off, the coil of relay KM will be de-energized, and its normally closed switch will be closed. At this time, the control electrode G of the unidirectional thyristor SCR will have a positive voltage, and simultaneously, there will be a positive voltage between the anode A and cathode K of the unidirectional thyristor SCR. Therefore, the unidirectional thyristor SCR will conduct, energizing the LED D for illumination. Simultaneously, because the LED D is emitting light, phototransistor Q1 will conduct, NPN transistor Q2 will also conduct, the coil of relay KM will be energized, and its normally closed switch will switch to the open state. The voltage at the control electrode G of the unidirectional thyristor SCR will disappear, but the unidirectional thyristor SCR will remain conducting, and the LED D will remain emitting light. Until the commissioning work at this location is completed, the commissioning personnel will remove the device body from the energy storage cabinet. The self-resetting normally open switch SB will then disconnect from the energy storage cabinet, and the light-emitting diode D will turn off.
[0021] Specifically, to ensure electrical safety, an air switch QF is installed between the power output terminal and the self-resetting normally open switch SB. At the same time, a protective resistor R is connected to the negative terminal of the self-resetting normally open switch SB to prevent excessive current from damaging the device.
[0022] like Figure 2 As shown, the magnetic attraction structure includes several magnet blocks 2 evenly distributed on the back of the device body 1. The self-resetting normally open switch SB is located in the middle of the magnet blocks 2, thereby ensuring the stability of the force when the self-resetting normally open switch SB comes into contact with the energy storage cabinet, and ensuring the stability of the closed state. The magnet blocks 2 are generally installed on the device body 1 by adhesive. In order to ensure the installation stability of the magnet blocks 2, several positioning grooves 11 are provided on the back of the device body 1. The magnet blocks 2 are placed in the positioning grooves 11. The positioning grooves 11 not only increase the adhesive area, but also have a certain interlocking relationship between the positioning grooves 11 and the magnet blocks 2.
[0023] The above are merely preferred embodiments of this utility model, and are implementations based on the overall concept of this utility model. Furthermore, the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.
Claims
1. A portable lighting device for an energy storage cabinet, characterized in that, The device includes a main body and a lighting control circuit. The lighting control circuit includes a power supply, a self-resetting normally open switch, a phototransistor, an NPN transistor, a relay, a light-emitting diode (LED), a unidirectional thyristor, and a time relay. The self-resetting normally open switch is connected to the power supply output. The collector of the phototransistor is connected to the self-resetting normally open switch, and the emitter is connected to the base of the NPN transistor. The emitter of the NPN transistor is grounded. The coil of the relay is connected to the collector of the phototransistor and the collector of the NPN transistor. The anode of the unidirectional thyristor is connected to the self-resetting normally open switch, and the cathode is connected to the anode of the LED. The cathode of the LED is grounded. One end of the coil of the time relay is connected to the self-resetting normally open switch, and the other end is grounded. The normally closed switch of the relay and the normally open switch of the time relay are connected in series between the self-resetting normally open switch and the control electrode of the thyristor. The LED and the self-resetting normally open switch are located on opposite sides of the main body, and a magnetic attraction structure is provided on the side where the self-resetting normally open switch is located.
2. A portable lighting device for an energy storage cabinet according to claim 1, characterized in that, An air switch is provided between the power output terminal and the self-resetting normally open switch.
3. A portable lighting device for an energy storage cabinet according to claim 1, characterized in that, The negative terminal of the self-resetting normally open switch is connected to a protective resistor.
4. A portable lighting device for an energy storage cabinet according to claim 1, characterized in that, The magnetic attraction structure includes several magnet blocks evenly distributed on the side of the device body, and the self-resetting normally open switch is located in the middle of the magnet blocks.
5. A portable lighting device for an energy storage cabinet according to claim 4, characterized in that, The device body has several positioning grooves on its side, and the magnet block is placed in the positioning groove.