Explosion-proof lighting delay switch
By designing explosion-proof lighting delay switches, the automatic turn-off of the lighting lamps is achieved by using relays and delay functions, solving the unnecessary power use and power waste caused by existing explosion-proof lighting switches, and improving safety and the service life of the lamps.
Patent Information
- Application Number
- CN202421607905.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-08
AI Technical Summary
The existing explosion-proof lighting switches need to be manually rotated to turn off the power, resulting in the light still turning on after the person leaves, and unnecessary power consumption and waste of electricity.
An explosion-proof lighting delay switch is designed, including explosion-proof buttons and control circuit boards, which enables the instantaneous opening and delay closing of the lighting lamp through relays and delay functions to prevent unnecessary power consumption.
It realizes the automatic power supply of the lighting line after personnel leave, reducing unnecessary electricity and power waste, and is suitable for explosion-proof environments, improving safety and service life of lamps.
Smart Images
Figure CN222884031U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lighting control switches, in particular to an explosion-proof lighting delay switch. Background Art
[0002] The explosion-proof lighting switches currently on the market are knob switches. By closing the normally open contacts in the switch, the circuit is connected and the lights are turned on. This type of lighting switch requires personnel to manually rotate the switch handle to disconnect the contacts to turn off the lights. It is generally used in passages such as aisles and stairwells. After people leave, the lights remain on, resulting in unnecessary electricity consumption. Most pharmaceutical and chemical companies currently use this type of explosion-proof lighting switch, which results in unnecessary waste of electricity. Utility Model Content
[0003] In view of this, an object of the present invention is to provide an explosion-proof lighting delay switch to solve one or more of the above-mentioned prior art problems.
[0004] To achieve the above-mentioned purpose, the utility model provides an explosion-proof lighting delay switch, comprising an explosion-proof box and a wire introduction interface and a wire lead-out interface respectively arranged at both ends of the explosion-proof box, wherein an explosion-proof button, an explosion-proof knob and a control circuit board are arranged in the explosion-proof box, wherein the control circuit board comprises a control circuit board live wire input terminal and a control circuit board live wire output terminal, wherein the control circuit board live wire input terminal is used for an external live wire, and the control circuit board live wire output terminal is used for an external lighting device, wherein the wire introduction interface is connected to the control circuit board live wire input terminal through the live wire of the power line, and the wire lead-out interface is connected to the control circuit board live wire output terminal through the lighting control line, wherein the explosion-proof button is used to trigger the control circuit board, and the control circuit board is used to control the instantaneous opening and delayed closing of the lighting device, and the explosion-proof knob is used to adjust the delayed closing time.
[0005] In some embodiments, the wire entry interface is externally connected to a first externally threaded hollow lock nut, a first explosion-proof rubber ring and a first metal washer are arranged inside the wire entry interface, and the wire lead-out interface is externally connected to a second externally threaded hollow lock nut, and a second explosion-proof rubber ring and a second metal washer are arranged inside the wire lead-out interface.
[0006] In some embodiments, the live wire of the power cord passes through the first external threaded hollow lock nut, the first metal washer, the first explosion-proof rubber ring, the wire introduction interface, and enters the explosion-proof box in sequence, and the lighting device control wire passes through the second external threaded hollow lock nut, the second metal washer, the second explosion-proof rubber ring, the wire lead-out interface, and enters the explosion-proof box in sequence.
[0007] In some embodiments, the delayed closing time is 0-300 minutes.
[0008] In some embodiments, the explosion-proof box is a flameproof explosion-proof box.
[0009] In some embodiments, the control circuit board includes an auxiliary relay and a power-on delay relay, the explosion-proof knob is used to control the delay time of the power-on delay relay, the auxiliary relay includes a coil and a momentary contact, and the power-on delay relay includes a power-on delay coil, a first power-on closed delayed open contact, and a second power-on closed delayed open contact.
[0010] In some embodiments, the coil is connected in parallel with the power-on delay coil, and the power-on delay coil, the first power-on closed delayed open contact, the second power-on closed delayed open contact, the live wire output terminal of the control circuit board, the lighting device, and the neutral wire output terminal of the control circuit board are connected in series. After the coil is connected in parallel with the power-on delay coil, one end is connected to the explosion-proof button, and the other end is connected to the neutral wire input terminal of the control circuit board, and the explosion-proof button is connected to the live wire input terminal of the control circuit board.
[0011] Compared with the prior art, the beneficial effects of the present invention are:
[0012] 1. Save electricity: When a person arrives at the entrance of this corridor, he presses the explosion-proof lighting delay switch button, the explosion-proof lighting delay switch starts working, the internal relay connects to the corridor lighting power supply, and all the lights are on. After the person passes through the corridor, the internal relay of the explosion-proof lighting delay switch reaches the timing time, cuts off the lighting circuit power supply, and the lights in the corridor are turned off, thus achieving the function of energy saving.
[0013] 2. Improve safety: This push-button explosion-proof lighting delay switch can adapt to gas explosion sites and dust explosion sites in most petrochemical enterprises, and has a broad prospect for use.
[0014] 3. Extend the service life of lamps: The service life of lamps is generally calculated according to the working hours. This push-button explosion-proof lighting delay switch can significantly reduce unnecessary working time to extend the service life of lamps.
[0015] 4. Increase the experience: The timing time can be set independently according to personal preferences and actual needs of the factory to increase applicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of an explosion-proof lighting delay switch in one embodiment of the utility model;
[0017] Figure 2 This is a schematic diagram of the structure of an explosion-proof lighting delay switch in one embodiment of the utility model;
[0018] Figure 3The figure is a circuit diagram of an explosion-proof lighting delay switch in one embodiment of the utility model. DETAILED DESCRIPTION
[0019] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.
[0020] Example
[0021] like Figure 1 and 2 Shown:
[0022] An explosion-proof lighting delay switch comprises an explosion-proof box 10 and a wire introduction interface 20 and a wire lead-out interface 30 respectively arranged at both ends of the explosion-proof box 10, the wire introduction interface 20 is externally connected with a first externally threaded compression hollow lock nut 21, the wire introduction interface 20 is provided with a first explosion-proof rubber ring and a first metal washer, the wire lead-out interface 30 is externally connected with a second externally threaded compression hollow lock nut 31, the wire lead-out interface 30 is provided with a second explosion-proof rubber ring and a second metal washer, the explosion-proof box 10 is a flameproof explosion-proof box, the explosion-proof box 10 is provided with an explosion-proof button 40 and a control circuit board 50, the control circuit board 50 comprises a control circuit board live wire input terminal 61 and a control circuit board live wire output terminal 62, the control circuit board live wire input terminal 61 is used for external live wire, the control circuit board live wire output terminal 62 is used for external lighting device 70, the lighting device is a lighting lamp, and the power line live wire cable is sequentially The wire introduction interface 20 enters the explosion-proof junction box by passing through the first external thread to compress the hollow lock nut 21, the first explosion-proof rubber ring, and the first metal washer. The first external thread is rotated to compress the hollow lock nut 21 and the threads of the internal thread wire introduction interface 20 are engaged with each other to squeeze the first explosion-proof rubber ring to deform, so that the first explosion-proof rubber ring fills the gap between the internal thread wire introduction interface 20 and the cable, thereby achieving the purpose of sealing the explosion-proof box. The lighting control line cable passes through the second external thread to compress the hollow lock nut 31, the second metal washer, and the second explosion-proof rubber ring in sequence, and the internal thread wire lead-out interface 30 enters the explosion-proof junction box. The second external thread is rotated to compress the hollow lock nut 3 and the threads of the internal thread wire lead-out interface 30 are engaged with each other to squeeze the second explosion-proof rubber ring to deform, so that the second explosion-proof rubber ring fills the gap between the internal thread wire lead-out interface 30 and the cable, thereby achieving the purpose of sealing the explosion-proof box, so that the explosion-proof junction box is suitable for gas explosion-proof and dust explosion-proof environments. The explosion-proof button 40 is used to trigger the control circuit board 50, and the control circuit board 50 is used to control the instantaneous opening and delayed closing of the lighting device 70. The explosion-proof knob 41 is used to adjust the delayed closing time, and the delayed closing time is 0-300 minutes.
[0023] Embodiment 1, as Figure 3As shown, the control circuit board 50 includes an auxiliary relay and a power-on delay relay, the explosion-proof knob 41 is used to control the delay time of the power-on delay relay, the auxiliary relay includes a coil 81 and an instantaneous contact 82, the power-on delay relay includes a power-on delay coil 91, a first power-on closed delayed disconnect contact 92 and a second power-on closed delayed disconnect contact 93, the coil 81 is connected in parallel with the power-on delay coil 91, the power-on delay coil 91, the first power-on closed delayed disconnect contact 92, the second power-on closed delayed disconnect contact 93, the control circuit board live wire output terminal 62, the lighting device 70, and the control circuit board neutral wire output terminal 64 are connected in series, the coil 81 is connected in parallel with the power-on delay coil 91, one end is connected to the explosion-proof button 40, and the other end is connected to the control circuit board neutral wire input terminal 63, the explosion-proof button 40 is connected to the control circuit board live wire input terminal 61.
[0024] The required duration is set by rotating the explosion-proof knob 41. When the origin mark of the explosion-proof knob 41 is aligned with 0, the timing circuit does not work, and the control circuit board 50 receives the start signal from the explosion-proof button 40, connects the control circuit board live input terminal 61, and the control circuit board outputs the live wire 62 contacts, and the lighting lamp is always on; when the origin mark of the explosion-proof knob 41 is aligned with I, the control circuit board 50 receives the start signal from the explosion-proof button 40, connects the control circuit board timing circuit to work, connects the control circuit board live input terminal 61, and the control circuit board outputs the live wire 62 contacts for one minute, and the lighting lamp is on for one minute; when the origin mark of the explosion-proof knob 41 is aligned with II, the control circuit board 11 receives the start signal from the explosion-proof button 40, connects the control circuit board timing circuit to work, connects the control circuit board live input terminal 61, and the control circuit board outputs the live wire 62 contacts for two minutes, and the lighting lamp is on for two minutes; and so on, the timing function has a maximum timing of 5 minutes. Set the origin mark of the explosion-proof knob 41 to align with V, press the explosion-proof button 40, and the control circuit board 50 receives the start signal from the explosion-proof button 40, the coil 81 is energized, the instantaneous contact 82 is closed, the power-on delay coil 91 is energized, the first power-on closed delay disconnection contact 92 and the second power-on closed delay disconnection contact 93 are closed, and the control circuit board 50 connects the control circuit board live input terminal 61 and the control circuit board live output terminal 62 to light the lamp. The power-on delay relay time is set to 5 minutes. After the time reaches 5 minutes, the first power-on closed delay disconnection contact 92 and the second power-on closed delay disconnection contact 93 are delayed to disconnect, and the power supply of the lamp is automatically disconnected, and the lamp is turned off. The length of the timing is achieved by selecting different models of power-on delay devices 91. This embodiment only lists examples of 0-5 minutes.
[0025] When a person reaches the entrance of the aisle, he presses the explosion-proof lighting delay switch button, the explosion-proof lighting delay switch starts working, the internal relay connects to the power supply of the aisle lighting, and all the lights are on. After the person passes through the aisle, the internal relay of the explosion-proof lighting delay switch reaches the timing time, cuts off the power supply of the lighting circuit, and the lights in the aisle go out.
[0026] Finally, it should be noted that: technicians in this industry should understand that the utility model is not limited to the above-mentioned implementation cases. The above-mentioned embodiments and descriptions only illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements must fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. Explosion-proof lighting delay switch, characterized in that: The invention comprises an explosion-proof box (10) and a wire lead-in interface (20) and a wire lead-out interface (30) respectively arranged at two ends of the explosion-proof box (10); the explosion-proof box (10) is provided with an explosion-proof button (40), an explosion-proof knob (41) and a control circuit board (50); the control circuit board (50) comprises a control circuit board live wire input terminal (61) and a control circuit board live wire output terminal (62); the control circuit board live wire input terminal (61) is used for externally connecting a live wire, and the control circuit board live wire output terminal (62) is used for externally connecting a live wire. 2) used for an external lighting device (70), the wire lead-in interface (20) is connected to the live wire input terminal (61) of the control circuit board via the live wire of the power line, the wire lead-out interface (30) is connected to the live wire output terminal (62) of the control circuit board via the lighting control line, the explosion-proof button (40) is used to trigger the control circuit board (50), the control circuit board (50) is used to control the instantaneous opening and delayed closing of the lighting device (70), and the explosion-proof knob (41) is used to adjust the time of delayed closing.
2. The explosion-proof lighting delay switch according to claim 1, characterized in that: The wire introduction interface (20) is externally connected to a first externally threaded compression hollow lock nut (21), and a first explosion-proof rubber ring and a first metal washer are arranged inside the wire introduction interface (20). The wire lead-out interface (30) is externally connected to a second externally threaded compression hollow lock nut (31), and a second explosion-proof rubber ring and a second metal washer are arranged inside the wire lead-out interface (30).
3. The explosion-proof lighting delay switch according to claim 2, characterized in that: The live wire of the power line passes through the first external thread compression hollow lock nut (21), the first metal washer, the first explosion-proof rubber ring, and the wire introduction interface (20) in sequence to enter the explosion-proof box (10), and the control wire of the lighting device passes through the second external thread compression hollow lock nut (31), the second metal washer, the second explosion-proof rubber ring, and the wire lead-out interface (30) in sequence to enter the explosion-proof box (10).
4. The explosion-proof lighting delay switch according to claim 1, characterized in that: The time of the delayed closing is 0-300 minutes.
5. The explosion-proof lighting delay switch according to claim 1, characterized in that: The explosion-proof box (10) is a flameproof explosion-proof box.
6. The explosion-proof lighting delay switch according to claim 1, characterized in that: The control circuit board (50) comprises an auxiliary relay and a power-on delay relay, the explosion-proof knob (41) is used to control the delay time of the power-on delay relay, the auxiliary relay comprises a coil (81) and an instantaneous contact (82), and the power-on delay relay comprises a power-on delay coil (91), a first power-on closing delay opening contact (92), and a second power-on closing delay opening contact (93).
7. The explosion-proof lighting delay switch according to claim 6, characterized in that: The coil (81) is connected in parallel with the power-on delay coil (91); the power-on delay coil (91), the first power-on closing delay opening contact (92), the second power-on closing delay opening contact (93), the live wire output terminal (62) of the control circuit board, the lighting device (70), and the neutral wire output terminal (64) of the control circuit board are connected in series; after the coil (81) is connected in parallel with the power-on delay coil (91), one end is connected to the explosion-proof button (40), and the other end is connected to the neutral wire input terminal (63) of the control circuit board; the explosion-proof button (40) is connected to the live wire input terminal (61) of the control circuit board.