CN108709094B - Lighting panel and lighting lamp - Google Patents

Lighting panel and lighting lamp Download PDF

Info

Publication number
CN108709094B
CN108709094B CN201810670575.2A CN201810670575A CN108709094B CN 108709094 B CN108709094 B CN 108709094B CN 201810670575 A CN201810670575 A CN 201810670575A CN 108709094 B CN108709094 B CN 108709094B
Authority
CN
China
Prior art keywords
light emitting
light
emitting diode
parallel
resistor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201810670575.2A
Other languages
Chinese (zh)
Other versions
CN108709094A (en
Inventor
黎国权
张国宝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Opple Lighting Co Ltd
Suzhou Op Lighting Co Ltd
Original Assignee
Opple Lighting Co Ltd
Suzhou Op Lighting Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Opple Lighting Co Ltd, Suzhou Op Lighting Co Ltd filed Critical Opple Lighting Co Ltd
Priority to CN201810670575.2A priority Critical patent/CN108709094B/en
Publication of CN108709094A publication Critical patent/CN108709094A/en
Application granted granted Critical
Publication of CN108709094B publication Critical patent/CN108709094B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/14—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array
    • F21Y2105/16—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The application relates to the technical field of illumination, in particular to an illumination panel and an illumination lamp, which are used for solving the problem that a light-emitting source is slightly bright after power failure in the prior art. The present application provides an illumination panel comprising: the metal chassis, cover the insulating layer of metal chassis a surface, set up the conducting layer on the insulating layer, wherein, the conducting layer includes: at least one light emitting diode; at least one resistor is connected in parallel with two ends of each light emitting diode. In the lighting panel provided by the application, the resistors are connected in parallel at the two ends of the light-emitting source, so that current flows to the zero line through the distributed capacitor after flowing through the resistors, and the current is prevented from flowing through the light-emitting source, so that the current in the live wire is prevented from flowing to the zero line through the distributed capacitor after flowing through the light-emitting source, and the light-emitting source is prevented from emitting light when the device switch is turned off, and the control of the light-emitting source is realized.

Description

Lighting panel and lighting lamp
Technical Field
The application relates to the technical field of illumination, in particular to an illumination panel and an illumination lamp.
Background
In the existing lighting technical field, a lighting lamp is often composed of a substrate, a power supply module and a light emitting module, and the structure often comprises a metal material, for example, a substrate made of metal, a power supply module containing metal wires, a light emitting module containing metal components and the like. The capacitance between the structures or components of the respective metal materials tends to form, and the capacitance distributed over the various portions of the lighting substrate may be referred to as a distributed capacitance.
After the lighting lamp is turned off, a voltage difference is formed between two ends of the light-emitting source due to the partial distributed capacitance, and weak current still passes through the light-emitting source under the condition that the lighting lamp is turned off, so that the light-emitting source cannot be completely turned off.
Disclosure of Invention
The embodiment of the application provides a lighting panel and a lighting lamp, which are used for solving the problem that a light-emitting source is slightly bright after power failure in the prior art.
The embodiment of the application adopts the following technical scheme:
a lighting panel, comprising:
the metal chassis, cover the insulating layer of metal chassis a surface, set up the conducting layer on the insulating layer, wherein, the conducting layer includes:
at least one light emitting diode;
at least one resistor is connected in parallel with two ends of each light emitting diode.
Preferably, at least one group of parallel light emitting diodes in the at least one light emitting diode is connected with a resistor in parallel.
Preferably, when the conductive layer includes at least one group of parallel light emitting diodes, a resistor is connected in parallel to two ends of each group of parallel light emitting diodes.
Preferably, the resistance of the resistor is positively correlated with the rated voltage of a light emitting diode connected in parallel with the resistor.
Preferably, the resistance of the resistor is smaller than the resistance of the internal resistance of the light emitting diode.
Preferably, the conductive layer further includes: at least one light source board;
the at least one light emitting diode and the resistors connected in parallel at two ends of the light emitting diode are arranged on the light source plate.
Preferably, the positive electrode of the light emitting diode is connected with the live wire through a physical switch.
Preferably, the light emitting diode and the resistor connected in parallel with the light emitting diode are packaged into a whole.
Preferably, each light emitting diode is connected in parallel with a resistor, and the parallel resistors of different light emitting diodes are different.
A lighting fixture, comprising: driving power supply, lamp shade, above-mentioned arbitrary illumination panel.
Preferably, the driving power supply is an isolated power supply or a non-isolated power supply.
Preferably, when the driving power supply is a non-isolated power supply, the driving power supply comprises a filter, a rectifier bridge, a power factor correction circuit and at least one constant current circuit.
Preferably, the driving power supply further includes: a remote control circuit and/or an intelligent control circuit;
the remote control circuit controls the illumination panel according to a remote control instruction;
the intelligent control circuit controls the illumination panel according to a preset instruction.
Preferably, the lighting fixture further comprises: a live wire switch;
and the fire wire switch is used for controlling the on-off of the fire wire and the lighting panel.
In the lighting panel provided by the application, the resistors are connected in parallel at the two ends of the light emitting diode, so that current flows to the zero line through the distributed capacitor after flowing through the resistors, the voltage at the two ends of the light emitting diode is the same as the voltage of the parallel resistors, and as the voltage at the two ends of the resistor is lower than the starting voltage of the light emitting diode, no current flows in the light emitting diode, thus the current in the live wire is prevented from flowing to the zero line through the distributed capacitor after flowing through the light emitting diode, the light emitting diode is prevented from emitting light when the device switch is disconnected, and the control of the light emitting diode is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic view of a prior art lighting panel;
FIG. 2 is a schematic diagram of a prior art lighting panel circuit;
FIG. 3a is a schematic view of a lighting panel according to a preferred embodiment of the present application;
FIG. 3b is one of the equivalent circuit schematic diagrams of the illumination panel according to the preferred embodiment of the present application;
FIG. 4 is a second equivalent circuit diagram according to the preferred embodiment of the present application;
FIG. 5 is a third equivalent circuit diagram according to the preferred embodiment of the present application;
FIG. 6 is a schematic top view of a prior art lighting panel;
FIG. 7 is an equivalent circuit diagram based on the lighting panel of FIG. 6;
FIG. 8 is a fourth schematic diagram of an equivalent circuit according to a preferred embodiment of the present application;
FIG. 9 is an equivalent circuit diagram of an illumination panel including two paths of constant current output power sources;
FIG. 10 is an equivalent circuit diagram of an illumination panel including a power source with one constant current output;
FIG. 11 is an equivalent circuit diagram of a lighting panel incorporating a remote or intelligent control circuit;
FIG. 12 is an equivalent circuit diagram of an illumination panel incorporating a fire wire switch;
fig. 13 is a schematic view of a lighting fixture according to a preferred embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.
Example 1
The conventional lighting panel structure is shown in fig. 1, and the lighting panel comprises a metal chassis 11, an insulating layer 12 and a conductive layer 13, wherein the metal chassis 11 and a switch for controlling the on/off of the device are electrically connected with a ground wireThe live wire is communicated with the conducting layer, wherein the whole opening and closing of the opening and closing control circuit of the switch of the control device is often controlled, and then the on-off of the light emitting diode is controlled. Specifically, the conductive layer 13 may include a light emitting diode 131, a wire 132, and related electronics 133 for controlling the light emitting device, wherein the light emitting diode 131 may also be referred to as a light emitting source. Because the devices and the wires in the conductive layer often comprise metal materials, the conductive layer and the metal chassis form a capacitor, the insulating layer is positioned between the conductive layer and the metal chassis and is equivalent to an insulating medium in the capacitor, each metal device in the conductive layer is used as a first polar plate of the capacitor, and the metal chassis is used as a second polar plate of the capacitor, so that a distributed capacitor is formed on the lighting panel. As shown in fig. 2, three leds are shown in series, even though the device switch S 1 In the disconnected state, due to the distributed capacitance, a small current flows from the live wire to the light-emitting source L in sequence according to the arrow direction in the figure 1 First capacitor C 1 Reaching the metal chassis (ground), the light-emitting source emits weak light in a state where the device switch is turned off, so that the light-emitting source cannot be completely turned off.
In order to solve the problem of micro-lighting of the light source, the present application provides an illumination panel, and fig. 3a is a schematic structural diagram of the illumination panel provided by the present application, where the illumination panel provided by the present application includes:
a metal chassis 31, an insulating layer 32 covering one surface of the metal chassis 31, and a conductive layer 33 disposed on the insulating layer 32, wherein the conductive layer 33 comprises:
at least one light emitting diode;
at least one resistor is connected in parallel with two ends of each light emitting diode.
Among them, light emitting diodes (Light Emitting Diode, LEDs) are made of compounds containing gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N), and the like. In the light emitting diode, visible light is emitted when electrons are recombined with holes, and the light emitting diode can be used as an indicator lamp in circuits and instruments. The on/off of a plurality of light emitting diodes arranged in an array may also be used to identify letters or numbers. Wherein gallium arsenide diode Guan Fa emits red light, gallium phosphide diode Guan Fa emits green light, silicon carbide diode emits yellow light, and gallium nitride diode emits blue light.
As shown in fig. 3b, the equivalent circuit diagram of the conductive layer 33 of the illumination panel provided by the application comprises three series-connected leds, each led having a resistor connected in parallel to its two ends, for the light source L 1 Because the two ends of the luminous source are connected with the resistor R in parallel 1 So that current will flow from the hot wire through resistor R in the direction of the arrow in the figure 1 And a first capacitor C 1 Reaching the zero line.
In the lighting panel provided by the application, by connecting resistors in parallel at two ends of the light-emitting source, current flows to the zero line through the distributed capacitor after flowing through the resistors, and the voltage at two ends of the light-emitting source is the same as the voltage of the parallel resistors.
Example two
Based on the panel according to the above embodiment, the present application further provides an illumination panel, wherein at least one group of parallel leds of the at least one led is connected in parallel with a resistor.
As shown in fig. 4, three parallel light emitting diodes are shown, namely a light emitting source group 41, a light emitting source group 42 and a light emitting source group 43, wherein each group of light emitting sources comprises three light emitting diodes connected in parallel, two resistors 41a are connected in parallel at two ends of the light emitting source group 41, two resistors 42a and 42b are connected in parallel at two ends of the light emitting source group 42, one resistor is connected in parallel at each of three light emitting sources in the light emitting source group 43, and three resistors are connected in parallel at two ends of the light emitting source group 43, namely a resistor 43a, a resistor 43b and a resistor 43c.
In general, the plurality of light emitting sources connected in parallel have substantially the same structure, that is, the power, rated voltage, rated current, and rated power of the light emitting sources are substantially the same, and thus the voltages across the plurality of light emitting sources connected in parallel are also substantially uniform. Because the two ends of the light emitting source group 41 are connected in parallel with the resistor 41a, the voltage at the two ends of each LED in the light emitting source group 41 is equal to the voltage at the two ends of the resistor 41a, so that compared with the prior structure, the resistor 41a can pull down the voltage at the two ends of the light emitting source group 41, so that the voltage between the anode and the cathode of each LED in the light emitting source group 41 is lower than the starting voltage, the LEDs are not conducted, and the situation of micro-lighting caused by weak current flowing through the LEDs is avoided.
For the light emitting source group 42 and the light emitting source group 43, a plurality of resistors are connected in parallel at both ends of each group of light emitting sources. Resistor 42a and resistor 42b pull down the voltage across the set of light sources 42. When each LED shown in fig. 4 is identical and each resistance is also identical, the resistance of the resistors connected in parallel across the light emitting source group 42 is lower than the resistance of the resistors across the light emitting source group 41, and thus, the voltage across the light emitting source group 42 is lower than the voltage across the light emitting source group 41. Similarly, the voltage across the light source group 43 is lower than the voltage across the light source group 42.
From the above analysis, it is known that the actual voltage value across the light source group is related to the resistance value of the parallel resistors. In order to improve the integration level, when the conductive layer comprises at least one group of resistors connected in parallel, two ends of each group of resistors connected in parallel are connected with one resistor. As shown in fig. 5, three parallel light emitting diodes are respectively a light emitting source group 51, a light emitting source group 52 and a light emitting source group 53, wherein resistors 51a are connected in parallel to both ends of the light emitting source group 51, resistors 52a are connected in parallel to both ends of the light emitting source group 52, and resistors 53a are connected in parallel to both ends of the light emitting source group 53. The circuit structure shown in this figure has a smaller number of devices than that shown in fig. 4, contributing to an improvement in the integration level of the devices. Meanwhile, the resistor shown in fig. 5 can pull down the voltage at two ends of the light-emitting source group connected in parallel with the resistor, so that the voltage at two ends of the light-emitting source group is lower than the starting voltage of the LED, and further the LED is prevented from being turned on, and the situation that the LED is slightly bright under the condition that the circuit is turned off is prevented. When a plurality of LEDs are connected in parallel, as shown in fig. 7, since the voltage of each LED connected in parallel is the same, only one resistor is connected in parallel to both ends of the plurality of LEDs connected in parallel, so that the control of the plurality of LEDs connected in parallel can be realized. The resistor enables the voltage between the anode and the cathode of the LEDs connected in parallel to be the same as the voltage at two ends of the resistor connected in parallel, and the voltage at two ends of the resistor is lower than the starting voltage of the LEDs, so that the LEDs cannot be conducted, and the LEDs are prevented from being slightly bright under the condition that a circuit is disconnected.
In the conventional lighting panel, a plurality of light emitting sources are generally included, and the plurality of light emitting sources may be independently disposed on the conductive layer, but short circuits or poor wire contact between the plurality of independent light emitting sources are likely to occur. The application also provides a superior illumination panel, the conductive layer further comprising: at least one light source board;
the at least one light emitting diode and the resistors connected in parallel at two ends of the light emitting source are arranged on the light source plate. The light source board may be a printed circuit board (Printed Circuit Board, PCB), which may also be referred to as a printed wiring board. In the production process, a plurality of light emitting diodes can be arranged on the PCB, and then the PCB is arranged on the insulating layer. Specifically, firstly, an insulating layer is coated on a metal chassis, the metal chassis is communicated with a zero line, the zero line is often communicated with a ground wire, and then at least one PCB board is arranged on the insulating layer. The top view of the lighting panel is shown in fig. 6, the lighting panel comprises four PCB boards (61, 62, 63, 64), ten series-connected light emitting diodes a are arranged on each PCB board, in addition, a power supply is arranged on the insulating layer, the anode and the cathode of the power supply are connected with the light emitting diodes on the PCB boards through wires according to the mode shown in the figure, the adjacent PCB boards are communicated through wires, the forty light emitting diodes are connected in series, and the power supply drives the light emitting diodes to emit light. The equivalent circuit diagram of the existing lighting panel shown in fig. 6 is shown in fig. 7, and the circuit further includes a switch, which can be disposed at any position of the power ground, not shown in the figure. According to the illustration, a capacitor is formed between each light emitting diode and the metal chassis, namely, a capacitor exists between a fire wire and a ground wire, the whole lighting panel comprises a plurality of distributed capacitors, the size of the distributed capacitors is related to the factors such as the positions and materials of the light emitting diodes, and the sizes of the plurality of capacitors on the lighting panel can be the same or different. The power source may be an ac power source as shown, driving the leds to emit light through the hot and ground wires. Wherein the ground line can also be regarded as zero line.
According to the lighting panel provided by the application, the resistor is connected in parallel to the positive and negative ends of each light-emitting source, as shown in fig. 8, under the structure, the voltage of the two ends of the light-emitting diode is the same as the voltage of the two ends of the parallel resistor, the resistor can pull down the voltage of the two ends of the LED, so that the voltage of the two ends of the LED is lower than the starting voltage, no current flows in the LED, and the LED is prevented from being slightly bright when a switch in a circuit is turned off.
Preferably, in the lighting panel provided by the application, the resistance value of the resistor is positively correlated with the rated voltage value of one light emitting diode connected in parallel with the resistor.
Specifically, the resistance r=v of the parallel resistor 2 The value range of P and P can be between 0.002W and 0.01W; v is the turn-on voltage value of the light emitting diode, i.e. the resistance value of the resistor is proportional to the square of the rated voltage value of one light emitting diode connected in parallel with the resistor. Before the resistor is connected in parallel, the voltage at two ends of the light-emitting diode is the voltage difference between the live wire and the zero wire, after the resistor is connected in parallel, the voltage at two ends of the light-emitting diode is the same as the voltage at two ends of the resistor, and R=V is adopted 2 The resistance value determined by the/P is such that the voltage across the LED is less than the turn-on voltage, so that the resistance value in the LED is infinite, and no current flows through the LED without turning on the LED, thereby avoiding the situation of micro-lighting of the LED.
Preferably, the resistance of the resistor is smaller than the resistance of the internal resistance of the light emitting diode. Based on the principle, the lower resistance value enables the voltage at two ends of the light-emitting diode to be lower than the starting voltage of the light-emitting diode, and the current from the live wire flows to the zero line through the capacitor after passing through the resistor, so that the situation of micro-brightness caused by weak current flowing through the light-emitting diode is avoided.
In practical application, the parallel resistors can be adjusted according to the actual connection mode of the LEDs, and based on the lighting panel provided by the embodiment, the light emitting diodes and the resistors parallel to the light emitting diodes are packaged into a whole. When a plurality of leds are connected in series, each led is preferably connected in parallel with a resistor, and for ease of assembly, the resistor and the leds may be packaged together in advance. The integrated resistor and the light-emitting diode are convenient to assemble, short circuit, poor connection and the like are not easy to occur in the assembling process, and the integral integration level and the yield of the lighting panel are improved.
For the integrally packaged light emitting diodes and resistors connected in parallel, each light emitting diode is connected in parallel with one resistor, and the parallel resistors of different light emitting diodes are different. Preferably, a light emitting diode is connected in parallel with a resistor and packaged as a whole, and the resistance of the parallel resistor is related to the rated voltage of the light emitting diode. According to the difference of the parameters of different LEDs, the parallel resistances of different LEDs can be different.
The power supply in the application is usually a constant current power supply, and the constant current power supply can be specifically divided into two types, namely a non-isolated power supply and an isolated power supply. When the driving power supply is a non-isolated power supply, the driving power supply comprises a filter, a rectifier bridge, a power factor correction circuit and at least one constant current circuit. The common non-isolated power supply topology structure with the power of the lighting panel being more than 25W comprises an EMI and rectifying circuit, a power factor correction circuit and one or more paths of BUCK constant current circuits, wherein the EMI specifically refers to an EMI filter, and a standard EMI filter is a low-pass filter circuit which is usually composed of a series reactor and a parallel capacitor and has the function of allowing frequency signals of equipment to enter the equipment when the equipment works normally and has a larger blocking effect on high-frequency interference signals. Referring to fig. 9, an equivalent circuit diagram of a power supply including two constant current outputs is shown. In the prior art, each light emitting diode forms a capacitor with the metal chassis, and weak current passes through the light emitting diode under the condition of circuit disconnection, so that the light emitting diode can be slightly bright.
The common non-isolated power supply topology structure with the power of the illumination panel less than 25W comprises an EMI and rectifying circuit, a capacitive filter and one or more BUCK constant current circuits, wherein the BUCK circuits are also called BUCK conversion circuits, and as shown in figure 10, the equivalent circuit diagram of the power supply with one constant current output is included.
Preferably, the driving power supply further includes: a remote control circuit and/or an intelligent control circuit;
the remote control circuit controls the illumination panel according to a remote control instruction;
the intelligent control circuit controls the illumination panel according to a preset instruction.
In order to improve control convenience, the lighting panel can further comprise a remote control circuit and/or an intelligent control circuit, and the remote control circuit can send and receive control signals in a wireless mode, and can specifically send and receive data in wireless communication modes such as infrared, bluetooth, WIFI and NFC. The user can control the opening or closing of the light through the mobile phone, the tablet personal computer, the intelligent watch and other electronic terminals, namely, the control circuit is closed or opened. The intelligent control circuit may control the brightness, the color, etc. of the emitted light according to a preset time period or the current environment. The non-isolated power supply topology structure with the remote control or intelligent control function, which is more than 25W, comprises an EMI and rectifying circuit, a power factor correction circuit, one or more BUCK constant current circuits and a remote control or intelligent control circuit, and is shown in an equivalent circuit diagram of a power supply with two paths of constant current outputs, referring to FIG. 11. The remote control or intelligent control circuit is used for converting the signals sent by the remote control or intelligent control controller into corresponding control signals and controlling the BUCK constant current circuit to realize dimming, color mixing and lamp turning on and off of the lamp.
Aiming at the circuit structures shown in fig. 9, 10 and 11, the application connects a resistor in parallel between the anode and the cathode of each light emitting diode, so as to avoid the situation that the light emitting diode is slightly bright under the condition of circuit disconnection. The parallel resistor pulls down the voltage at two ends of the light emitting diode, so that the voltage between the anode and the cathode of the LED is lower than the starting voltage, and therefore no current flows in the LED, and the current in the live wire flows to the ground wire from the resistor, so that the light emitting source is prevented from being slightly lightened under the condition of circuit disconnection.
Further, the lighting fixture further includes: a live wire switch; and the fire wire switch is used for controlling the on-off of the fire wire and the lighting panel.
Taking the structure shown in fig. 11 as an example, in order to further avoid the light emitting diode from being slightly lit in the case of circuit disconnection, in the lighting panel, the positive electrode of the light emitting diode is connected with the live wire through a physical switch (as shown by a dashed box in fig. 12). The switch shown in the figure can disconnect the positive electrode of each light-emitting source in the lighting panel from the live wire, so that the voltage at the live wire is prevented from being applied to the positive electrode of the light-emitting source, the current from the live wire is blocked at the physical switch, weak current is prevented from flowing through the light-emitting diode, and the light-emitting diode is prevented from being slightly lightened.
Example III
Based on the above embodiment, the present application further provides a lighting fixture, as shown in fig. 13, including: a driving power source 131, any of the lighting panels 132 described in the above embodiments, and a lamp housing 133. The driving power source 131 may be an isolated power source or a non-isolated power source, and the power source may be integrated on the lighting panel or may be separately disposed from the lighting panel.
The isolation power supply is a power supply for isolating the power supply which is connected to the circuit from the mains supply, and particularly can be isolated by adopting a 1:1 power frequency transformer, and no matter which line of the line is touched by an operator, the danger of electric shock cannot occur because the isolation power supply is not connected with the ground. Therefore, the isolation power supply can improve safety and avoid electric shock of experimental personnel to a certain extent. In industrial control equipment, sometimes, power ground wire isolation between two systems, such as isolating ground wire noise, isolating high common mode voltage and the like, is required, a direct current converter with a transformer is adopted to separate two power sources, so that the two power sources are mutually independent, each module is independently powered, and one module is prevented from being damaged due to high-voltage discharge or other reasons and then other modules are prevented from being damaged. Therefore, the isolated power supply can ensure that each module works independently and is not interfered.
In contrast, a non-isolated power supply means that there is no electrical isolation between the input and load terminals by a transformer, but rather is directly connected, with the input and load terminals being commonly grounded. For circuits containing non-isolated power sources, there is a risk of electric shock when the operator touches the wires or electrical components. But compared with the isolated power supply, the non-isolated power supply has the advantages of low cost, simple structure and high index.
In addition, a support 134 for supporting or connecting the components may be included in the light fixture, and the support 134 may be used to secure the light fixture on a vertical surface or standing on a horizontal surface. The support 134 may be fixed or movable with a certain rotation or expansion function.
In addition, the lighting lamp provided by the application can also comprise a base 135 or other components which are helpful for maintaining stable balance of the desk lamp, and the structure of the desk lamp provided by the application is only shown in the figure, and the specific shape and size of the desk lamp are not limited. Other essential components of the desk lamp are those of ordinary skill in the art, and will not be described in detail herein, nor should they be considered as limiting the application.
In the lighting panel provided by the application, by connecting resistors in parallel at two ends of the light-emitting source, current flows to the zero line through the distributed capacitor after flowing through the resistors, and the voltage at two ends of the light-emitting source is the same as the voltage of the parallel resistors.
In addition, the illumination panel provided by the application can be applied to not only desk lamps, but also other illumination equipment such as wall lamps, ceiling lamps and the like. The illumination panel provided by the application can be applied to indoor or outdoor decorative lamps, colored lamps, lamp boxes and other devices.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.

Claims (13)

1. A lighting panel, comprising:
the metal chassis, cover the insulating layer of metal chassis a surface, set up the conducting layer on the insulating layer, wherein, the conducting layer includes:
at least one light emitting diode;
at least one resistor is connected in parallel with two ends of each light emitting diode;
the resistance of the resistor is smaller than that of the internal resistance of the light-emitting diode, so that under the condition that a device switch between a live wire and a zero wire is disconnected and has a distributed capacitor, the voltage at two ends of the resistor is equal to the voltage at two ends of the light-emitting diode and is lower than the starting voltage of the light-emitting diode, and the current flows through the resistor and the distributed capacitor to reach the zero wire without passing through the light-emitting diode.
2. The lighting panel of claim 1, wherein at least one group of parallel light emitting diodes of the at least one light emitting diode is connected in parallel with a resistor.
3. The lighting panel of claim 2 wherein when said conductive layer comprises at least one group of parallel light emitting diodes, a resistor is connected across each group of said parallel light emitting diodes.
4. The lighting panel of claim 1, wherein the resistance of the resistor is positively correlated with the rated voltage of a light emitting diode in parallel with the resistor.
5. The lighting panel of claim 1, wherein the conductive layer further comprises: at least one light source board;
the at least one light emitting diode and the resistors connected in parallel at two ends of the light emitting diode are arranged on the light source plate.
6. The lighting panel of claim 1, wherein the positive pole of the light emitting diode is connected to the hot wire through a physical switch.
7. The lighting panel of claim 1, wherein the light emitting diode is integrally packaged with a resistor in parallel with the light emitting diode.
8. The lighting panel of claim 7 wherein each of said leds is connected in parallel with a resistor, the parallel resistances of different leds being different.
9. A lighting fixture, comprising: a driving power supply, a lamp shade, a lighting panel as claimed in any one of claims 1-8.
10. The lighting fixture of claim 9, wherein the driving power source is an isolated power source or a non-isolated power source.
11. The lighting fixture of claim 10, wherein when the driving power source is a non-isolated power source, the driving power source comprises a filter, a rectifier bridge, a power factor correction circuit, at least one constant current circuit.
12. The lighting fixture of claim 11, wherein the driving power source further comprises: a remote control circuit and/or an intelligent control circuit;
the remote control circuit controls the illumination panel according to a remote control instruction;
the intelligent control circuit controls the illumination panel according to a preset instruction.
13. A lighting fixture as recited in claim 9, further comprising: a live wire switch;
and the fire wire switch is used for controlling the on-off of the fire wire and the lighting panel.
CN201810670575.2A 2018-06-26 2018-06-26 Lighting panel and lighting lamp Active CN108709094B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810670575.2A CN108709094B (en) 2018-06-26 2018-06-26 Lighting panel and lighting lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810670575.2A CN108709094B (en) 2018-06-26 2018-06-26 Lighting panel and lighting lamp

Publications (2)

Publication Number Publication Date
CN108709094A CN108709094A (en) 2018-10-26
CN108709094B true CN108709094B (en) 2023-11-03

Family

ID=63871990

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810670575.2A Active CN108709094B (en) 2018-06-26 2018-06-26 Lighting panel and lighting lamp

Country Status (1)

Country Link
CN (1) CN108709094B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102595676A (en) * 2011-01-06 2012-07-18 亿广科技(上海)有限公司 LED illumination driving control circuit
TWM483203U (en) * 2014-04-02 2014-08-01 Fames Technology Co Ltd Dynamic load module of LED turn signal
CN205579491U (en) * 2016-05-04 2016-09-14 南昌亮明实业有限公司 Led lamp panel
CN206771017U (en) * 2017-06-02 2017-12-19 张红海 LED illumination lamp
CN207251980U (en) * 2017-08-28 2018-04-17 孙文武 A kind of lamps and lanterns breaker
CN208222107U (en) * 2018-06-26 2018-12-11 苏州欧普照明有限公司 A kind of illumination panel and illuminator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102595676A (en) * 2011-01-06 2012-07-18 亿广科技(上海)有限公司 LED illumination driving control circuit
TWM483203U (en) * 2014-04-02 2014-08-01 Fames Technology Co Ltd Dynamic load module of LED turn signal
CN205579491U (en) * 2016-05-04 2016-09-14 南昌亮明实业有限公司 Led lamp panel
CN206771017U (en) * 2017-06-02 2017-12-19 张红海 LED illumination lamp
CN207251980U (en) * 2017-08-28 2018-04-17 孙文武 A kind of lamps and lanterns breaker
CN208222107U (en) * 2018-06-26 2018-12-11 苏州欧普照明有限公司 A kind of illumination panel and illuminator

Also Published As

Publication number Publication date
CN108709094A (en) 2018-10-26

Similar Documents

Publication Publication Date Title
US9271354B2 (en) Lighting source and lighting apparatus
US9167660B2 (en) Combined surface mount and in-wall mount dimmer
US10681782B2 (en) Dimmable universal voltage LED power supply with regenerating power source circuitry and non-isolated load
RU2621720C2 (en) Bypass device in the lighting control system without neutral conductor
KR20120071365A (en) Light emitting diode retrofit system for fluorescent lighting system
KR20120100929A (en) Solid state lighting apparatus with configurable shunts
US9072127B2 (en) Lighting system and its luminaries with a respective lamp control module
SG180303A1 (en) Ac to dc led illumination devices, systems and methods
US9380661B2 (en) Lighting source and lighting apparatus
CN103988583A (en) Lighting apparatus and visible light communication system using same
JP2016525767A (en) Integrated micro light-emitting diode module with built-in programmability
JP3241568U (en) Light-emitting equipment and lamp in which multi-stage CCT and D2W are integrated
US9591706B2 (en) Universal voltage LED power supply with regenerating power source circuitry, non-isolated load, and 0-10V dimming circuit
US20240224391A1 (en) Hybrid light emitting diode tube with power select switch
CN208222107U (en) A kind of illumination panel and illuminator
EP3182802A1 (en) Lighting apparatus and system having electrical insulation structure between dimmer and driver
US9370060B2 (en) Lighting device and illumination apparatus including same
CN108709094B (en) Lighting panel and lighting lamp
JP7424642B2 (en) dimming system
US11703193B2 (en) Hybrid light emitting diode tube with selectable light settings
KR20140132491A (en) Communication module and lighting apparatus comprising the same
KR20180055578A (en) Apparatus for controlling dimming of led lighting device
CN107620908B (en) High-voltage constant-current chip and constant-current power supply
US20150257227A1 (en) Lighting system
WO2024169670A1 (en) Color temperature adjustment apparatus, and power source apparatus and led lamp using same

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant