Detection circuit for explosion-proof lamp and explosion-proof lamp

Abstract

The detection circuit comprises an emergency controller, a magnetic switch unit, a dimming controller, a built-in power supply, an indication module and an illumination module, the input end of the emergency controller is used for being connected with an external power supply, the control end of the emergency controller is electrically connected with the magnetic switch unit, and the illumination module is electrically connected with the magnetic switch unit. The dimming controller, the built-in power supply and the indication module are electrically connected, and the dimming controller is electrically connected with the illumination module; wherein when the magnetic switch unit is switched on, the emergency controller controls the built-in power supply to supply power to the dimming controller and the lighting module, and when the magnetic switch unit is switched off, the emergency controller uses an external power supply to supply power to the dimming controller and the lighting module. According to the technical scheme of the utility model, the built-in power supply and the emergency controller can be tested through magnetic induction, the circuit is simple, the production and maintenance cost is low, and the device is very suitable for explosion-proof detection.

Description

Technical Field

[0001] The utility model relates to explosion-proof lamps, in particular to a detection circuit for explosion-proof lamps and an explosion-proof lamp. Background Technique

[0002] At present, explosion-proof lamps on the market are required not to produce sparks or the generated sparks are not enough to detonate the explosive substances in the external environment of the lamp body, and the surface temperature of the lamp should be lower than the detonation point of the combustible substances in the environment. To avoid danger, it is necessary to select appropriate explosion-proof lamp products according to the gas grade. After the explosion-proof lamp is installed, it is necessary to detect the internal power supply and controller of the explosion-proof lamp during its use, maintenance, and failure. In the related art, most of the detections of explosion-proof lamps use infrared detection circuits for testing, with complex structures and high costs.

[0003] In view of this, it is necessary to further improve the current detection circuit of explosion-proof lamps. Content of the Utility Model

[0004] To solve the above-mentioned at least one technical problem, the main purpose of the utility model is to provide a detection circuit for explosion-proof lamps and an explosion-proof lamp.

[0005] To achieve the above purpose, a technical solution adopted by the utility model is: to provide a detection circuit for explosion-proof lamps, including: an emergency controller, a magnetic switch unit, a dimming controller, an internal power supply, an indication module, and a lighting module. The input end of the emergency controller is used to connect to an external power supply. The control end of the emergency controller is electrically connected to the magnetic switch unit. The dimming controller, the internal power supply, and the indication module are electrically connected. The dimming controller is electrically connected to the lighting module;

[0006] Wherein, when the magnetic switch unit is closed, the emergency controller controls the internal power supply to supply power to the dimming controller and the lighting module. When the magnetic switch unit is opened, the emergency controller uses the external power supply to supply power to the dimming controller and the lighting module.

[0007] Wherein, the magnetic switch unit includes a magnetic attraction switch and a magnetic member, and the magnetic member is magnetically matched with the magnetic attraction switch to close the magnetic attraction switch.

[0008] Wherein, the indication module is an LED indicator light to display the working state of the circuit when the magnetic switch unit is closed or opened; or

[0009] The indication module includes a first LED indicator light and a second LED indicator light. The first LED indicator light is used to display the working state of the circuit when the magnetic switch unit is closed, and the second LED indicator light is used to display the working state of the circuit when the magnetic switch unit is opened.

[0010] Among them, the detection circuit further includes a power converter electrically connected to the emergency controller. The power converter is connected to an external power supply to convert the external power supply into a low-voltage power supply for the operation of the power converter.

[0011] Among them, the detection circuit further includes a wiring terminal electrically connected to the power converter. The wiring terminal is used to access the external power supply.

[0012] Among them, the detection circuit further includes a lightning protection module electrically connected to the wiring terminal.

[0013] To achieve the above object, another technical solution adopted by the present utility model is: to provide an explosion-proof lamp including the above detection circuit for the explosion-proof lamp.

[0014] The technical solution of the present utility model adopts a magnetic switch unit. By using magnetic attraction cooperation, the magnetic switch unit can be in a closed state. At this time, in the detection circuit, the emergency controller controls the built-in power supply to supply power to the dimming controller and the lighting device, and the working state of the circuit is displayed through the indication module. Furthermore, the working states of the built-in power supply and the emergency controller can be quickly determined. Therefore, the present utility model can test the built-in power supply and the emergency controller through magnetic induction, the circuit is simplified, and the production and maintenance costs are relatively low, which is very suitable for explosion-proof detection. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0016] Figure 1 It is a block diagram of the modules of the detection circuit for an explosion-proof lamp according to an embodiment of the present utility model;

[0017] Figure 2 It is the specific circuit diagram of the detection circuit for an explosion-proof lamp according to an embodiment of the present utility model.

[0018] The realization, functional features and advantages of the object of the present utility model will be further described in conjunction with the embodiments with reference to the drawings. Detailed Embodiment

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] It should be noted that the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0021] Different from the problem that most of the detections of explosion-proof lamps in related technologies adopt infrared detection circuits for testing, with complex structures and high costs, the present invention provides a detection circuit for explosion-proof lamps. Through magnetic induction detection, the structure is streamlined, which is beneficial to reducing the production cost of explosion-proof lamps and facilitating explosion-proof detection. The specific circuit structure of the detection circuit for explosion-proof lamps is as follows in the following embodiments.

[0022] Please refer to Figures 1 to 2 , Figure 1 which is the module block diagram of the detection circuit for explosion-proof lamps according to an embodiment of the present invention; Figure 2 which is the specific circuit diagram of the detection circuit for explosion-proof lamps according to an embodiment of the present invention. In the embodiments of the present invention, the detection circuit for explosion-proof lamps includes: an emergency controller 100, a magnetic switch unit 300, a dimming controller 400, a built-in power supply 200, an indication module 600, and a lighting module 500. The input end of the emergency controller 100 is used to connect to an external power supply. The control end of the emergency controller 100 is electrically connected to the magnetic switch unit 300. The dimming controller 400, the built-in power supply 200, and the indication module 600 are electrically connected. The dimming controller 400 is electrically connected to the lighting module 500;

[0023] Among them, when the magnetic switch unit 300 is closed, the emergency controller 100 controls the built-in power supply 200 to supply power to the dimming controller 400 and the lighting module 500. When the magnetic switch unit 300 is opened, the emergency controller 100 uses the external power supply to supply power to the dimming controller 400 and the lighting module 500.

[0024] Specifically, the emergency controller 100 controls the power input of the dimming control and lighting module 500. When maintaining or overhauling the circuit, it is necessary to detect the built-in power supply 200 and the emergency controller 100. At this time, by magnetic cooperation, the magnetic switch unit 300 can be closed, and the circuit is in the detection state at this time. The emergency controller 100 controls the built-in power supply 200 to supply power to the dimming controller 400 and the lighting module 500. When the power supply is normal, the indication module 600 is in the lit state. At this time, the dimming controller 400 and the lighting module 500 work normally; when the indication module 600 is in the extinguished state, the dimming controller 400 and the lighting module 500 are damaged and need to be overhauled. It should be noted that when the magnetic switch unit 300 is disconnected, the emergency controller 100 switches to the working power supply for the circuit according to the circuit state; when the magnetic switch unit 300 is closed, the emergency controller 100 only controls the built-in power supply 200 to supply power to the circuit.

[0025] When the circuit is powered by an external power supply, the circuit is in the normal working state at this time. The external power supply is provided to the dimming controller 400 and the lighting module 500 through the emergency controller 100 to ensure that the dimming controller 400 and the lighting module 500 are in the normal working state. Among them, the dimming controller 400 can adjust the brightness of the lighting module 500, and the lighting module 500 can be an LED light board or an LED lamp, etc. When the external power supply is disconnected, the circuit is in the emergency working state. The emergency controller 100 controls the built-in power supply 200 to supply power to the dimming controller 400 and the lighting module 500 to ensure that the entire circuit is in a continuous working state when the external power is cut off. Among them, the built-in power supply 200 is a storage battery or a battery pack. When an external power supply is connected, the built-in power supply 200 can also be charged. After the built-in power supply 200 is fully charged, the built-in power supply 200 is in a standby output state, and the emergency controller 100 controls the built-in power supply 200 to output.

[0026] Among them, the magnetic switch unit 300 includes a magnetic attraction switch 310 and a magnetic member 320. The magnetic member 320 is magnetically coupled with the magnetic attraction switch 310 to close the magnetic attraction switch 310. It can be understood that the indication module 600 indicates the working state of the entire circuit by lighting.

[0027] Specifically, the indication module 600 is an LED indicator light to display the working state of the circuit when the magnetic switch unit 300 is closed or disconnected. When the magnetic switch unit 300 is disconnected, the LED indicator light is on, indicating that the entire circuit is in the normal working state. In addition, when the built-in power supply 200 is charging, it can also be judged whether the built-in power supply 200 is charging by the LED indicator light being on. For example, when the green light of the LED indicator light is on for 3 seconds, it means charging. When the red light of the LED indicator light is on, it means that the power of the built-in power supply 200 is insufficient.

[0028] Further, the indication module 600 includes a first LED indicator light and a second LED indicator light. The first LED indicator light is used to display the working state of the circuit when the magnetic switch unit 300 is closed, and the second LED indicator light is used to display the working state of the circuit when the magnetic switch unit 300 is opened. The specific lighting colors and flashing times of the first LED indicator light and the second LED indicator light can be flexibly arranged according to the actual design requirements and are not limited herein.

[0029] Specifically, the detection circuit further includes a power converter 700 electrically connected to the emergency controller 100. The power converter 700 is connected to an external power source to convert the external power source into a low-voltage power source for the operation of the power converter 700. The power converter 700 can also be referred to as a driver, which is used to convert an external power source of 100 - 277V into a low-voltage output to ensure the normal operation of the emergency controller 100.

[0030] Specifically, the detection circuit further includes a terminal block 900 electrically connected to the power converter 700. The terminal block 900 is used to connect to an external power source. The terminal block 900 can stably connect to an external power source of 100 - 277V to ensure the stability of power supply.

[0031] Further, the detection circuit further includes a lightning protection module 800 electrically connected to the terminal block 900. The lightning protection module 800 is beneficial for lightning protection and is suitable for use in areas with many thunderstorms.

[0032] In an embodiment of the present invention, the explosion-proof lamp includes the above-mentioned detection circuit for the explosion-proof lamp. For the specific structure of the explosion-proof lamp, please refer to the embodiment of the detection circuit for the explosion-proof lamp above and will not be elaborated herein. Since the explosion-proof lamp of this solution applies the above-mentioned detection circuit for the explosion-proof lamp, it has all the advantages and effects of the detection circuit for the explosion-proof lamp.

[0033] The above are only the preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the concept of the technical solution of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields shall be included in the patent protection scope of the present invention.

Claims

1. A detection circuit for explosion-proof lamps, characterized in that, The detection circuit for the explosion-proof lamp includes: an emergency controller, a magnetic switch unit, a dimming controller, a built-in power supply, an indication module, and a lighting module. The input end of the emergency controller is used to connect to an external power supply. The control end of the emergency controller is electrically connected to the magnetic switch unit. The dimming controller, the built-in power supply, and the indication module are electrically connected. The dimming controller is electrically connected to the lighting module; Among them, when the magnetic switch unit is closed, the emergency controller controls the built-in power supply to supply power to the dimming controller and the lighting module. When the magnetic switch unit is opened, the emergency controller uses the external power supply to supply power to the dimming controller and the lighting module.

2. The detection circuit for explosion-proof lamps according to claim 1, wherein The magnetic switch unit includes a magnetic attraction switch and a magnetic component. The magnetic component is magnetically matched with the magnetic attraction switch to close the magnetic attraction switch.

3. The detection circuit for explosion-proof lamps according to claim 1, characterized in that, The indication module is an LED indicator light to display the working state of the circuit when the magnetic switch unit is closed or opened; or The indication module includes a first LED indicator light and a second LED indicator light. The first LED indicator light is used to display the working state of the circuit when the magnetic switch unit is closed. The second LED indicator light is used to display the working state of the circuit when the magnetic switch unit is opened.

4. The detection circuit for explosion-proof lamps according to claim 1, characterized in that, The detection circuit further includes a power converter electrically connected to the emergency controller. The power converter is connected to the external power supply to convert the external power supply into a low-voltage power supply for the power converter to work.

5. The detection circuit for explosion-proof lamps according to claim 1, characterized in that, The detection circuit further includes a terminal block electrically connected to the power converter. The terminal block is used to connect to the external power supply.

6. The detection circuit for explosion-proof lamps according to claim 1, characterized in that, The detection circuit further includes a lightning protection module electrically connected to the terminal block.

7. An explosion-proof lamp, characterized in that, The explosion-proof lamp includes the detection circuit for the explosion-proof lamp according to any one of claims 1 to 6.

Images