Uninterrupted lighting circuit

Abstract

The utility model relates to the technical field of automatic lighting, in particular to an uninterrupted lighting circuit. The control circuit comprises a main power supply, a standby power supply and a lighting device. Switches of the main power supply and the standby power supply are in a closed state; after the main power switch QS1 is switched on, a positive wire and a negative wire of the power supply control a contactor KM1, and after the contactor KM1 is switched on, the lighting power supply is output to lighting equipment through a main contact of the KM1; a coil of a contactor KM2 for controlling the standby power supply is connected in series with a normally closed contact of the KM1, so that after the two power supplies are switched on, the KM2 cannot be switched on due to the switching-on of the KM1, namely, the standby power supply does not output; when the main power supply loses power, the KM2 coil of the standby power supply is controlled to be electrified and closed, and the illumination equipment is continuously powered by the standby power supply; when the main power supply recovers power supply, the KM2 of the standby power supply is disconnected due to actuation of the KM1, and the lighting circuit is still powered by the main power supply.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic lighting, in particular to an uninterrupted lighting circuit. Background Art

[0002] Usually, lighting lamps are connected in parallel to a 220-volt power supply through a switch. The switch controls the light and the light turns on and off depending on the power supply. If the power goes out, there will be no lighting. In some important places, the lighting requirements are high and even lighting interruptions are not allowed. Usually, an uninterrupted lighting circuit is required.

[0003] A Chinese patent with publication number CN104701909A discloses a UPS (uninterruptible power supply) comprising a static switch controller, a static output device, an intelligent charger, a battery pack, an inverter, a transformer, a filter, and a central controller. The output of the static switch controller is connected to the static output device. The intelligent charger, battery pack, inverter, and transformer are connected in sequence. The inverter is connected to the central controller, which is connected to the static switch controller. The filter is connected to the static switch controller. The intelligent charger comprises a buck regulator unit and a charging unit connected to the output of the buck regulator unit. The charging unit comprises an output unit, a charging control unit electrically connected to the output unit, an identification and judgment unit, and a switch control unit. The switch control unit controls the connection and disconnection of a float charge control resistor. For lithium batteries, charging is performed using a constant current-constant voltage mode. For lead-acid batteries, charging is performed using a constant current-constant voltage-float charge mode.

[0004] In the above technology, by setting up a UPS, it is possible to provide uninterrupted power to the load equipment when the power grid is abnormal. However, the structure of the UPS is relatively complex, which makes it prone to many faults, even more than when the circuit is out of power. This is not conducive to uninterrupted lighting and requires regular maintenance. In addition, the cost of using a UPS is high, which is not conducive to the long-term use of the circuit.

[0005] Therefore, in order to solve the above problems, an uninterrupted lighting circuit is proposed. Utility Model Content

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the structure of the UPS in the prior art is relatively complex, which causes many fault problems, even more than the situation of power outage, which is not conducive to uninterrupted lighting.

[0007] In order to solve the above technical problems, the utility model provides an uninterrupted lighting circuit.

[0008] In one embodiment of the present invention, a control circuit is included, which includes a main power supply, a backup power supply and a lighting device, and the output ends of the main power supply and the backup power supply are electrically connected to the lighting device; the main power supply is provided with main switches QS1 and KM1, and the main power supply is output to the lighting device through the main contact of KM1; the backup power supply is provided with backup switches QS2, KM1 and KM2, and KM1 and KM2 on the backup power supply cooperate with each other.

[0009] In one embodiment of the present invention, the lighting device includes a shell, a lampshade is fixedly connected to the top of the shell, a mounting plate is fixedly connected to the inner wall of the shell, four cooling fans are fixedly arranged in a circle on the mounting plate, a plurality of cooling vents are opened on the lampshade, the cooling vents are adapted to the cooling fans, a terminal is rotatably connected to the mounting plate via a rotating shaft, one end of the terminal passes through the lampshade, two wires are provided inside the terminal, a cleaning brush is fixedly connected to the outer wall of the terminal, and the cleaning brush is in contact with the outer wall of the lampshade.

[0010] In one embodiment of the present invention, four dustproof nets are fixedly connected to the inner wall of the lampshade, the dustproof nets are adapted to the heat dissipation openings, and the area of ​​the dustproof nets is larger than the area of ​​the heat dissipation openings.

[0011] In one embodiment of the present invention, a first gear is fixed to the outer side of the terminal, a motor is fixed to the bottom of the mounting plate, the output shaft of the motor is rotatably connected to the mounting plate through a bearing, the output shaft of the motor is fixed to a second gear, and the first gear is meshed with the second gear.

[0012] In one embodiment of the present utility model, eight limit columns are slidably connected to the inner side wall of the shell, each of the limit columns is provided with a groove, each of the grooves is fixed with a spring, one end of the spring is fixed to the shell, and a lamp board is provided on the eight limit columns, and a plurality of lamp beads are fixed on the lamp board.

[0013] In one embodiment of the present invention, the outer wall of the bottom end of the shell is threadedly connected to a bottom shell, and transparent glass is fixed on the bottom shell. The transparent glass is adapted to the lamp beads, and six top rods are fixed to the bottom of the lamp board, and the bottoms of the top rods are in contact with the transparent glass.

[0014] In one embodiment of the present invention, a plurality of fixing columns are fixedly connected to the bottom of the mounting plate, and a plurality of plugging columns are fixedly connected to the top of the lamp panel, and the plugging columns are all plugged into the fixing columns.

[0015] In one embodiment of the present invention, an alarm is fixed to the top of the mounting plate, and the alarm is electrically connected to the lamp beads.

[0016] The above technical solution of the utility model has the following advantages compared with the prior art:

[0017] The utility model describes an uninterruptible lighting circuit, which cooperates with a main power supply and a backup power supply. During normal use, the switches of the main power supply and the backup power supply are both in the closed state; after the main power switch QS1 is closed, the positive and negative lines of the power supply control the contactor KM1, and after the KM1 contactor is attracted, the lighting power is output to the lighting equipment through the main contacts of KM1; the coil of the contactor KM2 that controls the backup power supply is connected in series to the normally closed contact of KM1. When both power supplies are closed, KM2 cannot be attracted because KM1 is attracted, that is, the backup power supply is not output; when the main power supply loses power, the coil of KM2 that controls the backup power supply is energized and attracted, and the lighting equipment continues to be powered by the backup power supply; when the main power supply is restored, the backup power supply KM2 will be disconnected due to the attraction of KM1, and the lighting circuit is still powered by the main power supply.

[0018] The utility model describes an uninterrupted lighting circuit, which requires effective heat dissipation for long-term lighting of the lighting lamp through the cooperation of a cooling fan, a heat dissipation port, a dustproof net and a cleaning brush. Otherwise, the circuit board or the lamp board may overheat and the life of the lamp beads may be shortened. In order to solve the problem of rapid heat dissipation, the cooling fan is turned on to dissipate the heat in the shell through the heat dissipation port. A dustproof net is provided to prevent dust from entering. The motor is turned on regularly to drive the second gear to rotate, the second gear drives the first gear to rotate, the first gear drives the terminal to rotate, the terminal drives the cleaning brush to rotate, and the cleaning brush is used to clean the heat dissipation port and the dustproof net to reduce the blockage of the dustproof net by dust, which affects heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0020] Figure 1 It is a circuit diagram of the utility model;

[0021] Figure 2 It is a three-dimensional diagram of the utility model;

[0022] Figure 3 It is a cross-sectional view of the utility model;

[0023] Figure 4 It is a three-dimensional diagram of the first gear and the second gear in the utility model;

[0024] Figure 5 It is a three-dimensional diagram of the light board in the utility model;

[0025] Figure 6 It is a three-dimensional diagram of the plug-in column of the utility model;

[0026] Figure 7 It is a three-dimensional diagram of the limiting column in the utility model;

[0027] Explanation of the reference numerals in the accompanying drawings in the specification: 1. Lampshade; 2. Bottom shell; 3. Terminal block; 4. Heat dissipation vent; 5. Cleaning brush; 6. Dust screen; 7. First gear; 8. Second gear; 9. Motor; 10. Cooling fan; 11. Mounting plate; 12. Lamp board; 13. Fixing column; 14. Insert column; 15. Push rod; 16. Housing; 17. Limiting column; 18. Groove; 19. Spring; 20. Wire; 21. Lamp bead; 22. Alarm. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0029] Reference Figure 1 As shown, an uninterruptible lighting circuit of the present invention includes a control circuit, which includes a main power supply, a backup power supply and a lighting device, and the output ends of the main power supply and the backup power supply are electrically connected to the lighting device; the main power supply is provided with main switches QS1 and KM1, and the main power supply is output to the lighting device through the main contact of KM1; the backup power supply is provided with backup switches QS2, KM1 and KM2, and KM1 and KM2 on the backup power supply cooperate with each other.

[0030] During operation, by setting the main power supply and backup power supply for the lighting circuit, the output ends are both lighting equipment; during normal use, the switches of the main power supply and backup power supply are both in the closed state; after the main power switch QS1 is closed, the positive and negative lines of the power supply control the contactor KM1. After the KM1 contactor is energized, the lighting power is output to the lighting equipment through the main contacts of KM1; the coil of the KM2 contactor that controls the backup power supply is connected in series to the normally closed contact of KM1. When both power supplies are closed, KM2 cannot be energized because KM1 is energized, that is, the backup power supply does not output; when the main power supply loses power, the coil of KM2 that controls the backup power supply is energized and energized, and the lighting equipment continues to be powered by the backup power supply; when the main power supply is restored, the backup power supply KM2 will be disconnected due to the closure of KM1, and the lighting circuit is still powered by the main power supply.

[0031] Further, such as Figure 2 - Figure 7As shown, the lighting device includes a shell 16, a lampshade 1 is fixed to the top of the shell 16, a mounting plate 11 is fixed to the inner wall of the shell 16, four cooling fans 10 are fixedly arranged in a circle on the mounting plate 11, a plurality of cooling vents 4 are provided on the lampshade 1, the cooling vents 4 are adapted to the cooling fans 10, a terminal 3 is rotatably connected to the mounting plate 11 via a rotating shaft, one end of the terminal 3 passes through the lampshade 1, two wires 20 are provided inside the terminal 3, a cleaning brush 5 is fixed to the outer wall of the terminal 3, and the cleaning brush 5 is in contact with the outer wall of the lampshade 1.

[0032] During operation, the lighting lamp needs to be effectively cooled for a long time, otherwise the circuit board or the lamp board 12 will overheat, which may shorten the life of the lamp bead 21. In order to solve the problem of rapid heat dissipation, the cooling fan 10 is turned on, and the heat in the shell 16 is dissipated through the heat dissipation port 4 through the cooling fan 10. A dustproof net 6 is provided to prevent dust from entering. The terminal 3 is driven to rotate regularly, and the cleaning brush 5 is driven to rotate through the terminal 3. The cleaning brush 5 is used to clean the heat dissipation port 4 and the dustproof net 6 to reduce the blockage of the dustproof net 6 by dust, which affects heat dissipation.

[0033] Further, such as Figure 2 and Figure 4 As shown, four dustproof nets 6 are fixedly connected to the inner wall of the lampshade 1 . The dustproof nets 6 are adapted to the heat dissipation openings 4 , and the area of ​​the dustproof nets 6 is larger than that of the heat dissipation openings 4 .

[0034] During operation, the area of ​​the dustproof net 6 is larger than the area of ​​the heat dissipation opening 4 , and the dustproof net 6 covers the heat dissipation opening 4 to prevent dust from entering the lampshade 1 .

[0035] Further, such as Figure 4 As shown, a first gear 7 is fixed to the outer side of the terminal 3, a motor 9 is fixed to the bottom of the mounting plate 11, an output shaft of the motor 9 is rotatably connected to the mounting plate 11 through a bearing, and a second gear 8 is fixed to the output shaft of the motor 9, and the first gear 7 is meshed with the second gear 8.

[0036] During operation, when it is necessary to drive the terminal 3 to rotate, the motor 9 is turned on, and the second gear 8 is driven to rotate by the motor 9, and the first gear 7 is driven to rotate by the second gear 8, and the terminal 3 is driven to rotate by the first gear 7, thereby realizing regular rotation of the terminal 3.

[0037] Further, such as Figure 3 and Figure 7As shown, eight limiting columns 17 are slidably connected to the inner wall of the shell 16, and grooves 18 are provided in the limiting columns 17. Springs 19 are fixed in the grooves 18, and one end of the spring 19 is fixed to the shell 16. Lamp boards 12 are provided on the eight limiting columns 17, and multiple lamp beads 21 are fixed to the lamp boards 12.

[0038] During operation, in order to fix the lamp board 12, the lamp board 12 is pushed upward during installation, and the lamp board 12 squeezes the limit column 17, and the limit column 17 squeezes the spring 19. The spring 19 is compressed, and the limit column 17 slides inward. The lamp board 12 is placed on the limit column 17. Under the action of the spring 19, the limit column 17 is quickly reset, and the lamp board 12 is fixed. When it needs to be disassembled, by pulling the top rod 15, the top rod 15 squeezes the limit column 17, and the limit column 17 squeezes the spring 19. The spring 19 is compressed, the limit column 17 slides inward, and the lamp board 12 is removed.

[0039] Further, such as Figure 3 and Figure 6 As shown, the outer wall of the bottom end of the shell 16 is threadedly connected to the bottom shell 2, and transparent glass is fixed on the bottom shell 2. The transparent glass is compatible with the lamp beads 21, and six top rods 15 are fixed to the bottom of the lamp board 12, and the bottom of the top rods 15 is in contact with the transparent glass.

[0040] During operation, when installing the bottom shell 2, the bottom shell 2 is threadedly connected to the shell 16 by rotating the bottom shell 2 until the transparent glass contacts the bottom of the top rod 15. The top rod 15 supports the bottom of the lamp board 12 to fix the lamp board 12.

[0041] Further, such as Figure 5 and Figure 6 As shown, a plurality of fixing columns 13 are fixedly connected to the bottom of the mounting plate 11 , and a plurality of plugging columns 14 are fixedly connected to the top of the lamp panel 12 , and the plugging columns 14 are all plugged into the fixing columns 13 .

[0042] During operation, when installing the lamp board 12 , the plug posts 14 are aligned with the fixing posts 13 and sleeved together to limit and fix the top of the lamp board 12 .

[0043] Further, such as Figure 3 As shown, an alarm 22 is fixed to the top of the mounting plate 11 , and the alarm 22 is electrically connected to the lamp bead 21 .

[0044] During operation, by setting an alarm 22, when the number of lamp beads 21 exceeding the set number is damaged and not lighting, the alarm 22 reminds the staff through the computer program, so that the staff can repair it in time. Otherwise, not only the brightness will be affected, but if it continues to be damaged, uninterrupted lighting cannot be guaranteed.

[0045] Working principle: By setting the lighting circuit with a main power supply and a backup power supply, the output ends are both lighting equipment; during normal use, the switches of the main power supply and the backup power supply are both in the closed state; after the main power switch QS1 is closed, the positive and negative lines of the power supply control the contactor KM1. After the KM1 contactor is energized, the lighting power is output to the lighting equipment through the main contacts of KM1; the coil of the KM2 contactor that controls the backup power supply is connected in series to the normally closed contact of KM1. When both power supplies are closed, KM2 cannot be energized because KM1 is energized, that is, the backup power supply does not output; when the main power supply is lost, the coil of KM2 that controls the backup power supply is energized and energized, and the lighting equipment continues to be powered by the backup power supply; when the main power supply is restored, the backup power supply KM2 will be disconnected due to the energization of KM1, and the lighting circuit is still powered by the main power supply;

[0046] Long-term lighting requires effective heat dissipation, otherwise the circuit board or the lamp board 12 may overheat, which may shorten the life of the lamp beads 21. In order to solve the problem of rapid heat dissipation, the heat dissipation fan 10 is turned on, and the heat in the housing 16 is dissipated through the heat dissipation port 4 by the heat dissipation fan 10. A dustproof net 6 is provided to prevent dust from entering. The motor 9 is turned on regularly, and the second gear 8 is driven to rotate by the motor 9, and the first gear 7 is driven to rotate by the second gear 8. The terminal 3 is driven to rotate by the first gear 7, and the cleaning brush 5 is driven to rotate by the terminal 3. The cleaning brush 5 is used to clean the heat dissipation port 4 and the dustproof net 6 to reduce the blockage of the dustproof net 6 by dust and affect heat dissipation.

[0047] When installing the lamp board 12, the plug-in column 14 is aligned with the fixing column 13 and sleeved together to limit and fix the top of the lamp board 12. By rotating the bottom shell 2, the bottom shell 2 is threadedly connected to the shell 16 until the transparent glass contacts the bottom of the top rod 15. The top rod 15 supports the bottom of the lamp board 12 to fix the lamp board 12.

[0048] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An uninterruptible lighting circuit, comprising a control circuit, characterized in that: The control circuit includes a main power supply, a backup power supply and a lighting device, and the output ends of the main power supply and the backup power supply are electrically connected to the lighting device; the main power supply is provided with main switches QS1 and KM1, and the main power supply is output to the lighting device through the main contacts of KM1; the backup power supply is provided with backup switches QS2, KM1 and KM2, and KM1 and KM2 on the backup power supply cooperate with each other.

2. The uninterrupted lighting circuit according to claim 1, characterized in that: The lighting device comprises a shell (16), a lampshade (1) is fixedly connected to the top of the shell (16), a mounting plate (11) is fixedly connected to the inner wall of the shell (16), four cooling fans (10) are fixedly arranged in a circumferential manner on the mounting plate (11), a plurality of cooling ports (4) are provided on the lampshade (1), the cooling ports (4) are adapted to the cooling fans (10), a terminal (3) is rotatably connected to the mounting plate (11) via a rotating shaft, one end of the terminal (3) passes through the lampshade (1), two wires (20) are provided inside the terminal (3), a cleaning brush (5) is fixedly connected to the outer wall of the terminal (3), and the cleaning brush (5) contacts the outer wall of the lampshade (1).

3. The uninterrupted lighting circuit according to claim 2, characterized in that: Four dustproof nets (6) are fixedly connected to the inner wall of the lampshade (1); the dustproof nets (6) are adapted to the heat dissipation openings (4), and the area of ​​the dustproof nets (6) is larger than the area of ​​the heat dissipation openings (4).

4. The uninterrupted lighting circuit according to claim 3, characterized in that: A first gear (7) is fixedly connected to the outer side of the terminal (3), a motor (9) is fixedly connected to the bottom of the mounting plate (11), an output shaft of the motor (9) is rotatably connected to the mounting plate (11) via a bearing, a second gear (8) is fixedly connected to the output shaft of the motor (9), and the first gear (7) is meshed with the second gear (8).

5. The uninterrupted lighting circuit according to claim 4, characterized in that: The inner side wall of the shell (16) is slidably connected to eight limiting columns (17), each of which is provided with a groove (18), each of which is fixed with a spring (19), one end of which is fixed to the shell (16), and a lamp board (12) is provided on the eight limiting columns (17), and a plurality of lamp beads (21) are fixed to the lamp board (12).

6. The uninterrupted lighting circuit according to claim 5, characterized in that: The outer wall of the bottom end of the shell (16) is threadedly connected to a bottom shell (2), and a transparent glass is fixed to the bottom shell (2), and the transparent glass is compatible with the lamp beads (21). Six top rods (15) are fixed to the bottom of the lamp board (12), and the bottoms of the top rods (15) are in contact with the transparent glass.

7. The uninterrupted lighting circuit according to claim 6, characterized in that: The bottom of the mounting plate (11) is fixedly connected to a plurality of fixing columns (13), and the top of the lamp panel (12) is fixedly connected to a plurality of plugging columns (14), and the plugging columns (14) are all plugged into the fixing columns (13).

8. The uninterrupted lighting circuit according to claim 7, characterized in that: An alarm (22) is fixedly connected to the top of the mounting plate (11), and the alarm (22) is electrically connected to the lamp bead (21).

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