Illumination box power supply system combining normal illumination and fire-fighting illumination

Abstract

The utility model discloses a lighting box power supply system combining normal lighting and fire-fighting lighting, which belongs to the field of power plants and comprises a lighting box, a low-voltage cabinet inlet cable is connected into the lighting box from the top of the lighting box, an N row and a PE row are arranged in the lighting box, four fixing seats are arranged at the top and the bottom in the lighting box, and every two fixing seats are opposite to each other. According to the utility model, the cost of the lighting box can be effectively reduced, the incoming line switch action of the normal lighting bus is controlled, non-fire-fighting load can be cut off, fire hazard expansion is prevented, and the lighting box has the advantages of simple structure, convenient operation, low cost and the like. The risk of an electric shock accident of an electrical circuit is reduced, and the reliability and safety of electrical power supply of a fire-fighting loop are improved.

Description

Technical Field

[0001] The utility model relates to the field of power plants, in particular to a lighting box power supply system combining normal lighting and fire lighting. Background Art

[0002] The lighting in the buildings within a power plant is divided into normal lighting and fire lighting. Among them, fire lighting can be further divided into fire emergency lighting and fire evacuation lighting. Usually, normal lighting and fire lighting are powered by different lighting boxes respectively. There are many auxiliary workshops in the power plant and the single building area of the auxiliary workshops is small. If a conventional power supply scheme is adopted, if there is both normal lighting and fire lighting in a small building, at least two lighting boxes need to be set up, resulting in waste of lighting boxes. If the normal lighting and fire lighting are placed together, it is also necessary to consider how to fixedly install them in one lighting box, which can be conveniently disassembled and repaired, and the installations of each other do not interfere with each other. At the same time, it is also necessary to consider how the normal lighting and fire lighting with relatively close installation positions can effectively respond to the disaster situation when a fire occurs, and each other is not affected by the close installation position to ensure fire safety, prevent the spread of fire and prevent electric shock accidents of personnel during the fire. Therefore, there is an urgent need for a lighting box power supply system combining normal lighting and fire lighting, which can properly handle the relationship between the two, reduce the cost of lighting boxes while ensuring the normal operation of the fire lighting system and the safety of fire power supply. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a lighting box power supply system combining normal lighting and fire lighting, aiming to solve the problem of too high cost caused by repeated arrangement of multiple lighting boxes. The normal lighting and fire lighting are installed in one lighting box through a fixing frame. The structure is compact and they do not interfere with each other. While reducing the cost, it can effectively eliminate the influence of normal lighting on fire lighting when a fire occurs, ensuring fire safety.

[0004] To solve the above technical problems, the technical solution adopted by the present utility model is as follows: A lighting box power supply system combining normal lighting and fire-fighting lighting, including a lighting box. The low-voltage cabinet incoming cable is connected into the lighting box from the top of the lighting box. There are N rows and a PE row arranged in the lighting box. There are two fixing seats provided at the top of the lighting box and two fixing seats provided at the bottom. The top fixing seat and the bottom fixing seat are opposite in position. A fire-fighting lighting busbar mounting bracket is arranged between the top fixing seat and the bottom fixing seat on one side, and a normal lighting busbar mounting bracket is fixedly arranged between the top fixing seat and the bottom fixing seat on the other side. A fire-fighting lighting busbar is arranged on the fire-fighting lighting busbar mounting bracket, as well as a fire-fighting lighting incoming switch and a fire-fighting lighting outgoing switch connected to the fire-fighting lighting busbar; a normal lighting busbar is arranged on the normal lighting busbar mounting bracket, as well as a normal lighting incoming switch and a normal lighting outgoing switch connected to the normal lighting busbar. The normal lighting incoming switch is configured with a shunt release. The incoming cable is connected in parallel to the upper ends of the normal lighting incoming switch and the fire-fighting lighting incoming switch. The normal lighting outgoing switch is connected with normal lighting lamps through a cable, and the fire-fighting lighting outgoing switch is connected with fire-fighting lighting lamps through a cable.

[0005] A further improvement of the technical solution of the present utility model lies in that: Each fixing seat includes a base. Receiving vertical grooves are arranged on the left and right sides of the base. Fixing rods are hinged in the receiving vertical grooves. Rubber material fixing platforms are arranged at the top and bottom of the fire-fighting lighting busbar mounting bracket. The width of the fixing platform is the same as that of the base. Receiving vertical grooves adapted to the fixing rods are arranged on the left and right sides of the fixing platform. The receiving vertical grooves are closed-end grooves, and the opening width is smaller than the outer diameter of the fixing rod. The shapes and sizes of the fire-fighting lighting busbar mounting bracket and the normal lighting busbar mounting bracket are the same.

[0006] A further improvement of the technical solution of the present utility model lies in that: External threads are arranged on the upper part of the fixing rod.

[0007] A further improvement of the technical solution of the present utility model lies in that: The normal lighting outgoing switch on the normal lighting busbar includes multiple branch switches. Each branch switch is provided with a branch circuit through a cable, and each branch circuit is provided with normal lighting lamps.

[0008] A further improvement of the technical solution of the present utility model lies in that: The fire-fighting lighting outgoing switch on the fire-fighting lighting busbar includes at least 2 branch switches. The branch circuits provided through cables on each branch switch are fire-fighting emergency lighting circuits or fire-fighting evacuation lighting circuits. Among them, fire-fighting emergency lighting lamps are arranged on the fire-fighting emergency lighting circuit, and an A-type emergency lighting distribution box and fire-fighting evacuation lighting lamps are arranged on the fire-fighting evacuation lighting circuit.

[0009] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model is as follows: By setting the fixed seat and the mounting rack, the normal lighting busbar and the fire-fighting lighting busbar can be independently arranged on their respective mounting racks. The use of two busbars can not only ensure that their installation positions do not interfere with each other, but also ensure that different independent lines are not affected. At the same time, by setting the fixed rod on the fixed seat in cooperation with the guide groove, not only the stability of the fixation can be ensured, but also it is very convenient to disassemble. The overall busbar can be disassembled for inspection, and it is also very convenient for replacement. By setting a shunt trip on the normal lighting incoming switch in cooperation with the two-busbar structure, the normal lighting wiring system is separated from the fire-fighting lighting wiring system, and the normal lighting system and the fire-fighting lighting system are independently powered and operated. When a fire occurs, the normal lighting load is directly disconnected, fully ensuring the operation of the fire-fighting lighting, effectively maintaining the safety of fire-fighting power supply, preventing the spread of fire, reducing the risk of electric shock accidents in electrical circuits, and improving the reliability and safety of the electrical power supply of the fire-fighting circuit. The normal lighting busbar and the fire-fighting lighting busbar integrate the entire lighting system of the building in one distribution box, reducing the number of lighting distribution boxes, correspondingly reducing the number of switches in the low-voltage switchgear and the amount of power cables for supplying power to the lighting boxes, saving project investment, and having significant economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] 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 use in 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 these drawings;

[0011] Figure 1 is a schematic structural diagram of the present utility model;

[0012] Figure 2 is a schematic circuit diagram of the present utility model;

[0013] Among them, 1, lighting box; 2, fixed seat, 21, base, 22, fixed rod; 3, mounting rack, 31, fixed platform; 4, fire-fighting lighting incoming switch; 5, normal lighting incoming switch; 6, shunt trip; 7, normal lighting busbar mounting rack; 8, fire-fighting lighting outgoing switch; 9, normal lighting outgoing switch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The following further describes the present utility model in detail with reference to the embodiments:

[0015] As Figure 1 shown, it is a schematic structural diagram of a lighting box power supply system combining normal lighting and fire-fighting lighting. The circuit connection relationship of this system is as Figure 2As shown in the figure. This new type includes a lighting box 1. The low-voltage cabinet incoming cable is connected into the lighting box 1 from the top of the lighting box 1. On both sides in the lighting box 1, there are respectively provided with a matching N row (neutral busbar) and a PE row (ground busbar). There are two fixing seats 2 provided at the top of the lighting box 1, and two fixing seats 2 are also provided at the corresponding positions at the bottom, so that the top and bottom fixing seats 2 are opposite to each other in pairs. Between the fixing seats opposite to each other in pairs, there is an installation frame with the same specification and shape. Between one side's top fixing seat 2 and bottom fixing seat 2, there is a fire-fighting lighting busbar installation frame 3. Between the other side's top fixing seat 2 and bottom fixing seat 2, there is fixedly arranged a normal lighting busbar installation frame 7. The two independent sections of busbars are installed on the corresponding installation frames to ensure that the normal lighting wiring system and the fire-fighting lighting wiring system are separated, and the normal lighting system and the fire-fighting lighting system are independently powered and operated. On the fire-fighting lighting busbar installation frame 3, there is a fire-fighting lighting busbar, as well as a fire-fighting lighting incoming switch 4 and a fire-fighting lighting outgoing switch 8 connected to the fire-fighting lighting busbar; on the normal lighting busbar installation frame 7, there is a normal lighting busbar, as well as a normal lighting incoming switch 5 and a normal lighting outgoing switch 9 connected to the normal lighting busbar. A shunt trip device 6 is configured on the normal lighting incoming switch 5. When it is necessary to cut off the non-fire-fighting load, the shunt trip device can act, so that the fire alarm system can trip the circuit breaker remotely through the input-output control module or control cable at the fire center, turn on the incoming switch supplying power to the normal lighting busbar, and cut off the non-fire-fighting load, that is, disconnect the normal lighting by means of the shunt trip device 6, and the fire-fighting lighting can still continue to work. The incoming cable is connected in parallel to the upper ends of the normal lighting incoming switch 5 and the fire-fighting lighting incoming switch 4. The normal lighting outgoing switch 9 extends out of the lighting box through a cable and is connected with normal lighting lamps in the building. The normal lighting outgoing switch 9 on the normal lighting busbar includes multiple branch switches, and each branch switch has a corresponding branch circuit outside the lighting box through a cable. In this embodiment, the normal lighting outgoing switch 9 includes 6 branch switches corresponding to 6 branch circuits, and normal lighting lamps are arranged on each branch circuit. The fire-fighting lighting outgoing switch 8 on the fire-fighting lighting busbar includes at least 2 branch switches, and the branch circuits arranged through cables on each branch switch are fire emergency lighting circuits or fire evacuation lighting circuits. Among them, fire emergency lighting lamps are arranged on the fire emergency lighting circuit, and an A-type emergency lighting distribution box and fire evacuation lighting lamps are arranged on the fire evacuation lighting circuit. According to the actual requirements and the regulations on building lighting in the design specifications, the specific fire circuit settings can be selected. It can be set with only the fire emergency lighting circuit or only the fire evacuation lighting circuit.In this embodiment, there are two branch switches. The first branch switch is provided with a first branch circuit outside the box through an outward-extending cable. An A-type emergency lighting distribution box and a fire evacuation lighting lamp are arranged on the first branch circuit. The second branch switch is provided with a second branch circuit through a cable, and a fire emergency lighting lamp is arranged on the second branch circuit. Thus, the internal wiring of the distribution box separates the normal lighting from the fire lighting, and the normal lighting and the fire lighting are independently powered and operated.

[0016] To cooperate with the dual-bus setting of the normal lighting bus and the fire lighting bus, independent mounting brackets are set up. At the same time, it is also for the fixation of each bus and its switch and for easy disassembly, replacement, and maintenance. Each fixing seat 2 includes a base 21. Receiving vertical grooves are arranged on both the left and right sides of the base 21. A fixing rod 22 is hinged at the bottom of the receiving vertical groove. The size of the fixing rod 22 is larger than that of the receiving vertical groove. The upper parts of the fixing rods 22 on both sides of the base 21 will protrude from the base 21 to clamp the middle part. The sizes and shapes of the fire lighting bus mounting bracket 3 and the normal lighting bus mounting bracket 7 are exactly the same. The fire lighting bus mounting bracket 3 will be described. The fire lighting bus mounting bracket 3 is arranged between the upper and lower two fixing seats 2 on the left side inside the lighting box 1, and the normal lighting bus mounting bracket 7 is arranged between the upper and lower two fixing seats 2 on the right side inside the lighting box 1. Specifically, rubber material fixing platforms 31 are arranged at the top and bottom of the fire lighting bus mounting bracket 3. The fixing platforms 31 are in direct contact with the base 21, and the width is the same as that of the base 21. Receiving vertical grooves adapted to the fixing rods 22 are also arranged on both the left and right sides of the fixing platforms 31. The receiving vertical grooves on the fixing platforms 31 are closed-end grooves, and the opening width is smaller than the inner width and also smaller than the outer diameter of the fixing rod 22. The upper part of the fixing rod 22 can be squeezed into the receiving vertical groove through the deformation of the rubber material and be stuck in the receiving vertical groove to achieve fixation. At the same time, in order to better achieve fixation, external threads are arranged on the upper part of the fixing rod 22. When the fixing rod 22 is stuck in the receiving vertical groove, nuts are used to tighten the protruding part to better achieve the installation and fixation of the mounting bracket. With the help of the fixing seat and the independent mounting bracket, the two buses can be independently installed in the lighting box. At the same time, while ensuring stable fixation, the assembly and disassembly are time-saving and labor-saving. It can effectively reduce the number of lighting distribution boxes, correspondingly reduce the number of switches in the low-voltage switch cabinet and the amount of power cables for supplying power to the lighting box, save project investment, and have significant economic benefits.

[0017] The embodiments described above are only used to describe the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A lighting box power supply system combining normal lighting and fire lighting, including a lighting box (1). The low-voltage cabinet incoming cable is connected into the lighting box (1) from the top of the lighting box (1). There are N rows and a PE row arranged in the lighting box (1), and it is characterized in that: There are two fixing seats (2) provided at the top of the lighting box (1), and two fixing seats (2) are provided at the bottom. The top fixing seats (2) and the bottom fixing seats (2) are opposite in position. A fire-fighting lighting busbar mounting bracket (3) is provided between the top fixing seat (2) and the bottom fixing seat (2) on one side, and a normal lighting busbar mounting bracket (7) is fixedly provided between the top fixing seat (2) and the bottom fixing seat (2) on the other side. A fire-fighting lighting busbar is provided on the fire-fighting lighting busbar mounting bracket (3), as well as a fire-fighting lighting incoming line switch (4) and a fire-fighting lighting outgoing line switch (8) connected to the fire-fighting lighting busbar; a normal lighting busbar is provided on the normal lighting busbar mounting bracket (7), as well as a normal lighting incoming line switch (5) and a normal lighting outgoing line switch (9) connected to the normal lighting busbar. The normal lighting incoming line switch (5) is configured with a shunt trip device (6). The incoming cable is connected to the upper ends of the normal lighting incoming line switch (5) and the fire-fighting lighting incoming line switch (4). The normal lighting outgoing line switch (9) is connected with normal lighting lamps through a cable, and the fire-fighting lighting outgoing line switch (8) is connected with fire-fighting lighting lamps through a cable.

2. The lighting box power supply system combining normal lighting and fire lighting according to claim 1, wherein: Each fixing seat (2) includes a base (21). Receiving vertical grooves are provided on the left and right sides of the base (21). A fixing rod (22) is hinged in the receiving vertical grooves. Rubber fixing platforms (31) are provided at the top and bottom of the fire-fighting lighting busbar mounting bracket (3). The width of the fixing platform (31) is the same as that of the base (21). Receiving vertical grooves adapted to the fixing rod (22) are provided on the left and right sides of the fixing platform (31). The receiving vertical grooves are closed-end grooves, and the opening width is smaller than the outer diameter of the fixing rod (22). The fire-fighting lighting busbar mounting bracket (3) and the normal lighting busbar mounting bracket (7) are identical in shape and size.

3. The lighting box power supply system combining normal lighting and fire lighting according to claim 2, wherein: External threads are provided on the upper part of the fixing rod (22).

4. A lighting box power supply system combining normal lighting and fire lighting according to claim 1, characterized in that: The normal lighting outgoing line switch (9) on the normal lighting busbar includes a plurality of branch switches. A branch circuit is provided on each branch switch through a cable, and normal lighting lamps are provided on each branch circuit.

5. A lighting box power supply system combining normal lighting and fire lighting according to claim 1, characterized in that: The fire-fighting lighting outgoing line switch (8) on the fire-fighting lighting busbar includes at least 2 branch switches. The branch circuits provided on each branch switch through a cable are fire-fighting emergency lighting circuits or fire-fighting evacuation lighting circuits. Among them, fire-fighting emergency lighting lamps are provided on the fire-fighting emergency lighting circuits, and a type A emergency lighting distribution box and fire-fighting evacuation lighting lamps are provided on the fire-fighting evacuation lighting circuits.

Images