Multi-color lighting lamp tube controlled by single power switch

Abstract

The utility model relates to the technical field of lamps, and discloses a multicolor lighting lamp tube controlled by a single power switch, which comprises a lamp shade, a circuit board component is clamped in the lamp shade, one end of the circuit board component is connected with a power line, and plugs are movably clamped on two sides of the lamp shade. The on-off state identification circuit is additionally arranged in the lamp tube light bar, control of a display cabinet main control system can be separated, color switching and closing of the lamp tube light bar can be controlled directly through an external power switch, the power-off memory function of keeping the color state before power-off after power-on again is achieved, and the lamp tube light bar is simple and practical. The switch detection circuit, the illuminating lamp bead, the lampshade, the plug and other components are integrated; by detecting the state change of the external power supply switch, the multi-color-temperature color switching of the lamp tube is realized, the multi-color switching is controlled by a single switch, the structure is simple, the functions are multiple, the reliability is high, the practicability is strong, the size is small, and the installation and the use are easy.

Description

Technical Field

[0001] The utility model belongs to the technical field of lamps, in particular to a multi-color lighting lamp tube controlled by a single power switch. Background Art

[0002] In cold chain display cabinets in shopping malls, supermarkets, etc., the lighting tubes and light strips of traditional display cabinets require the display cabinet's main control panel or the lamps of each color to add a color switching switch to control the switching of multiple color temperatures of the lamps. The control operation is complicated, unfriendly, and the structure is also relatively complex.

[0003] Therefore, a multi-color lighting tube controlled by a single power switch is designed. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a multi-color lighting tube controlled by a single power switch, which effectively solves the problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-color lighting tube controlled by a single power switch, comprising a lampshade, a circuit board assembly is snap-connected inside the lampshade, one end of the circuit board assembly is connected to a power line, and plugs are movably snap-connected on both sides of the lampshade.

[0006] Preferably, the circuit board assembly comprises a PCB board, a control chip is mounted on one side of the upper end of the PCB board, and a voltage stabilizing circuit and a switch state identification circuit are connected to one side of the control chip.

[0007] Preferably, a lamp bead driving circuit is connected to the other side of the control chip, and lamp beads are evenly installed on one side of the lamp bead driving circuit.

[0008] Preferably, a connector is connected to one side of the upper end of the PCB board.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1) The utility model adds a switch state identification circuit inside the traditional light tube and light strip, which can be separated from the control of the display cabinet main control system. The color switching and closing of the light tube and light strip can be controlled directly by an external power switch, and has a power-off memory function to maintain the color state before power failure after power is turned on again, which is simple and practical;

[0011] 2) The new integrated switch detection circuit, lighting lamp beads, lampshade, plug and other components; by detecting the state change of the external power switch, the lamp tube can switch between multiple color temperatures. A single switch controls multiple color switching. It has the characteristics of simple structure, multiple functions, high reliability, strong practicality, and small size, and is easy to install and use;

[0012] 3) This new type can be widely used in cold chain display cabinets, wardrobes in shopping malls, supermarkets, and other places where lighting color temperature or color needs to be switched. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0014] In the attached picture:

[0015] Figure 1 It is an exploded view of the utility model;

[0016] Figure 2 This is an exploded view of the utility model from a side perspective of the upward axis;

[0017] Figure 3 It is a structural schematic diagram of the circuit board assembly of the utility model;

[0018] Figure 4 This is a schematic diagram of the circuit principle structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the principle structure of the white light circuit of the utility model;

[0020] Figure 6 This is a schematic diagram of the principle structure of the yellow light circuit of the utility model;

[0021] Figure 7 This is a schematic diagram of the principle structure of the blue light circuit of the utility model;

[0022] In the figure: 1. lampshade; 2. circuit board assembly; 201. PCB board; 202. control chip; 203. voltage stabilizing circuit; 204. switch state identification circuit; 205. lamp bead driving circuit; 206. lamp bead; 207. connector; 3. power cord; 4. plug. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] Embodiment 1, by Figure 1-Figure 7The utility model includes a lampshade 1, a circuit board assembly 2 is card-connected inside the lampshade 1, one end of the circuit board assembly 2 is connected to a power cord 3, and plugs 4 are movably card-connected on both sides of the lampshade 1, and the plugs 4 are used to fix the PCB board 10 to play a sealing and waterproof role.

[0025] Specifically, the circuit board assembly 2 includes a PCB board 201, a control chip 202 is installed on one side of the upper end of the PCB board 201, a voltage stabilizing circuit 203 and a switch state identification circuit 204 are connected to one side of the control chip 202, a lamp bead driving circuit 205 is connected to the other side of the control chip 202, and lamp beads 206 are evenly installed on one side of the lamp bead driving circuit 205. In this new model, the lamp beads 206 are grouped into three, which are white, yellow and blue respectively. A connector 207 is connected to one side of the upper end of the PCB board 201.

[0026] Working principle: The circuit principle of the circuit board assembly is: the positive pole of the 12VDC power supply is connected to the external switch through the connector 11. After the positive pole of the 12VDC power supply enters the circuit, one path is connected to the Vcc pin of the control chip 202 through a diode, a resistor and a filter capacitor to form a voltage stabilizing circuit 203, and the internal voltage stabilizing circuit 203 reduces the 12VDC power supply voltage to 5V, providing working power for the logic control circuit inside the control chip 202; the other path is connected to the Clk pin of the control chip 202 through a resistor and a filter capacitor, and forms a switch state recognition circuit 204 with the circuit inside the control chip 202, which is used to detect the on and off state of the external switch and the power-on and power-off time and timing. According to the recognized switch state, the output pin of the control chip 202 is connected to the lamp bead driving circuit 205, and the outputs control the on and off of the lamp beads 206 of different color temperatures and colors respectively.

[0027] The logic of switch status and control lamp color temperature switching is:

[0028] 1) Each time the switch is disconnected and connected (within 3.2 seconds), the control chip 202 controls the output switching sequence to be: L1-L2-L3 cycle (controlling the color switching of three lamp beads with different color temperatures);

[0029] 2) When the switch is disconnected for more than 3.2 seconds, the control chip 202 controls the output to be turned off, and the lamp beads 206 of the three color temperatures are all off; and the state of the light before the switch is disconnected is memorized, and the state before the light is turned on is directly output after the power is turned on next time, realizing the power-off memory function;

[0030] 3) The switch is disconnected and connected twice in one second, and the control chip 202 controls the output to light L1. This function is used to realize the reset function when one switch controls multiple identical multi-color lighting tubes at the same time, so that multiple multi-color lighting tubes light up the same color.

Claims

1. A multi-color lighting tube controlled by a single power switch, comprising a lampshade (1), characterized in that: The lampshade (1) has a circuit board assembly (2) that is snap-connected inside, one end of the circuit board assembly (2) is connected to a power line (3), and plugs (4) are movably snap-connected on both sides of the lampshade (1); The circuit board assembly (2) comprises a PCB board (201), a control chip (202) is mounted on one side of the upper end of the PCB board (201), and a voltage stabilization circuit (203) and a switch state identification circuit (204) are connected to one side of the control chip (202); The other side of the control chip (202) is connected to a lamp bead driving circuit (205), and lamp beads (206) are evenly mounted on one side of the lamp bead driving circuit (205).

2. The multi-color lighting tube controlled by a single power switch according to claim 1, characterized in that: A connector (207) is connected to one side of the upper end of the PCB board (201).

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