CN112032678B - LED brightening lamp strip voltage distribution lamp stand - Google Patents
LED brightening lamp strip voltage distribution lamp stand Download PDFInfo
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- CN112032678B CN112032678B CN202010909836.9A CN202010909836A CN112032678B CN 112032678 B CN112032678 B CN 112032678B CN 202010909836 A CN202010909836 A CN 202010909836A CN 112032678 B CN112032678 B CN 112032678B
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- led
- led lamp
- lamp
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- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/0015—Fastening arrangements intended to retain light sources
- F21V19/0025—Fastening arrangements intended to retain light sources the fastening means engaging the conductors of the light source, i.e. providing simultaneous fastening of the light sources and their electric connections
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- 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
-
- 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
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
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- 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
-
- 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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
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- 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]
Abstract
The invention discloses a voltage distribution lamp holder of an LED brightening lamp strip, which comprises: the lamp holder main body is provided with a plurality of LED lamps; the series/parallel control units are arranged between the adjacent LED lamps and are used for controlling the adjacent LED lamps to be connected in series or in parallel; the LED lamp comprises a plurality of open circuit detection units, a light source and a control unit, wherein each open circuit detection unit is connected with each LED lamp and used for detecting whether the LED lamp is open circuit or not; and the processing unit is in signal connection with both the series/parallel control unit and the disconnection detection unit, when the LED lamp is disconnected, the disconnection detection unit sends a disconnection signal to the processing unit, the processing unit sends a control signal to the series/parallel control unit, and the LED lamp which is disconnected is controlled to be connected with at least one adjacent LED lamp in parallel.
Description
Technical Field
The invention belongs to the technical field of LED lamp control, and particularly relates to a voltage distribution lamp holder for an LED brightening lamp bar.
Background
Generally, a series connection or a parallel connection is mostly adopted in the LED lighting light bar, and such a connection may cause a high use voltage or a high use current of the LED lighting light bar, and it is difficult to match the LED lighting light bar with a corresponding LED driving power supply, so that a specific LED driving power supply needs to be customized, thereby increasing the cost in the lighting engineering. In order to solve the problem, people think of processing the wiring mode of the LED brightening light bar by using a series-parallel mixed connection mode, can effectively reduce the use voltage or the use current, and enables the working voltage/current of the LED light bar to be in a reasonable interval, so that the type selection of the corresponding LED driving power supply is better carried out, and the purchase cost of the brightening engineering is reduced.
In addition, although the problem of overlarge voltage/current can be well solved in the method, in the use process of the LED brightening light bar, the situation that a certain LED lamp is dead and then the LED lamp is short-circuited or broken is difficult to avoid, if the short circuit occurs, the voltage drop of other LED lamps connected with the LED lamp in parallel is zero, no current passes through, and the LED lamp is also turned off; if open, this will cause its LED lamp in series to also pass no current and thus also extinguish. Even if other LEDs are capable of operating, they operate with either a high or low current voltage. The problems that arise as described above can greatly affect the effectiveness of the brightening process, which can increase the difficulty of post-maintenance.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a voltage distribution socket for an LED lighting strip, which can control the serial connection or the parallel connection between adjacent LED lamps, thereby effectively solving the influence of the damage of the LED lamps on the whole circuit.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an LED brightened light bar voltage distribution socket comprising:
the lamp holder main body is provided with a plurality of LED lamps;
the series/parallel control units are arranged between the adjacent LED lamps and are used for controlling the adjacent LED lamps to be connected in series or in parallel;
the LED lamp comprises a plurality of open circuit detection units, a light source and a control unit, wherein each open circuit detection unit is connected with each LED lamp and used for detecting whether the LED lamp is open circuit or not;
and the processing unit is in signal connection with both the series/parallel control unit and the disconnection detection unit, when the LED lamp is disconnected, the disconnection detection unit sends a disconnection signal to the processing unit, the processing unit sends a control signal to the series/parallel control unit, and the LED lamp which is disconnected is controlled to be connected with at least one adjacent LED lamp in parallel.
According to an embodiment of the invention, the lamp holder body is provided with a plurality of sockets, each socket comprises a positive electrode interface and a negative electrode interface, and the positive electrode and the negative electrode of the LED lamp are respectively arranged on the positive electrode interface and the negative electrode interface.
According to an embodiment of the present invention, the serial/parallel control unit includes a control module and four conducting switches, the four conducting switches are respectively used for conducting or disconnecting between the positive interfaces, between the negative interfaces, between the positive interface and the negative interface, and between the negative interface and the positive interface of the adjacent sockets, the processing unit sends a control signal to the control module, and the control module controls the four conducting switches to be conducted or closed.
According to an embodiment of the present invention, the control module includes a decoder and four data modules, the processing unit sends an eight-bit binary value control signal to the decoder, the decoder converts the control signal into four binary values, and sends the four binary values to the data modules, respectively, and the data modules send high-level or low-level signals to the on-off switch to turn on or off the on-off switch.
According to an embodiment of the present invention, the open circuit detection unit includes a diode and a schmitt trigger connected in series, the diode is connected to the anode or the cathode of the LED lamp, and the schmitt trigger is connected to the processing unit in a signal.
According to an embodiment of the present invention, the LED lighting device comprises a short detection unit in signal connection with the processing unit, and is configured to detect whether the LED lamp is short-circuited, wherein each of the LED lamps is connected to one of the short detection units, the short detection unit sends a short signal to the processing unit, the processing unit sends a control signal to the serial/parallel control unit, and the short LED lamp is controlled to be connected in series with the adjacent LED lamp.
According to an embodiment of the present invention, the short circuit detection unit is a current sensor, and is disposed between the positive electrode and the negative electrode of the LED lamp.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects:
(1) the LED lamp circuit comprises a plurality of sockets, a plurality of series/parallel control units, a plurality of open circuit detection units and a processing unit, wherein each socket is provided with one LED lamp, when the LED lamp is open circuit, the series/parallel control units control the open circuit LED lamp to be connected with at least one adjacent LED lamp in parallel, so that the influence of the damage of the LED lamp on the whole circuit is prevented, and the voltage at two ends of each LED lamp can be adjusted by changing the series-parallel relation.
(2) In the embodiment of the invention, the series/parallel control unit comprises the control module and four conducting switches which can be respectively used for conducting or disconnecting the positive interfaces, the negative interfaces, the positive interfaces and the negative interfaces of the adjacent sockets, so that the series-parallel relation between the sockets of the lamp holder is changed, and the voltage at two ends of the LED lamp is more convenient to adjust.
(3) The short circuit detection unit is arranged in the embodiment of the invention, so that the LED lamp can be connected with the adjacent LED lamp in series when the LED lamp is in short circuit, and the condition that the LED lamp connected with the LED lamp in parallel does not work due to the short circuit of the LED lamp is prevented.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
fig. 1 is an overall schematic view of a voltage distribution socket for an LED lighting strip of the present invention;
fig. 2 is a schematic diagram of a series/parallel control unit of a voltage distribution socket of an LED lighting strip of the present invention.
Description of reference numerals:
1: a positive electrode interface; 2: a negative electrode interface; 3: a processing unit; 4: a series/parallel control unit; 5: a disconnection detection unit; 6: a first conduction switch; 7: a second conduction switch; 8: a third conducting switch; 9: a fourth conducting switch; 10: a first data module; 11: a second data module; 12: a third data module; 13: a fourth data module; 16: a socket body.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise ratio for the purpose of facilitating and distinctly aiding in the description of the embodiments of the invention.
Referring to fig. 1 and 2, the core of the present invention is to provide a voltage distribution socket for an LED lighting strip, which includes a socket body 16, a plurality of series/parallel control units 4, a plurality of open circuit detection units 5 and a processing unit 3, wherein the socket body 16 is provided with a plurality of LED lamps, when the LED lamps are open circuit, the series/parallel control units 4 control the open circuit LED lamps to be connected in parallel with at least one adjacent LED lamp, so as to prevent the damage of the LED lamps from affecting the whole circuit, and the voltage at two ends of each LED lamp can be adjusted by changing the series-parallel relationship.
Specifically, the lamp holder main body 16 of the voltage distribution lamp holder of the LED lighting lamp strip is in a strip shape, a plurality of sockets are distributed along the length direction of the lamp holder main body, each socket comprises a positive electrode interface 1 and a negative electrode interface 2, each socket is provided with an LED lamp, and the positive electrode and the negative electrode of each LED lamp are respectively connected with the positive electrode interface 1 and the negative electrode interface 2. The lamp holder body 16 may have 1 to 100 sockets, and referring to fig. 1, seven sockets are provided in the present embodiment, that is, seven positive electrode sockets 1 and seven negative electrode sockets 2 are included, and the shapes of the sockets are all hexagonal prisms, and in other embodiments, other cuboids may also be provided.
The LED lamp control system further comprises a plurality of series/parallel control units 4 for controlling the adjacent LED lamps to be connected in series or in parallel, and the series/parallel control units 4 are arranged between the adjacent LED lamps.
Specifically, the series/parallel control unit 4 includes a control module and four conducting switches, and the conducting switches have a function of controlling current conduction and non-conduction.
The four conducting switches are respectively a first conducting switch 6, a second conducting switch 7, a third conducting switch 8 and a fourth conducting switch 9. The first 6 both ends of switch that switch on pass through between the anodal interface 1 of wire connection adjacent socket, the second switches on between 7 both ends of switch pass through between anodal interface 1 and the negative pole interface 2 of wire connection adjacent socket, the third switches on between 8 both ends of switch and pass through between the negative pole interface 2 of wire connection adjacent socket, the fourth switches on between 9 both ends of switch and pass through between negative pole interface 2 and the anodal interface 1 of wire connection adjacent socket, that is to say through four switches on of control or close can realize the series connection or the parallelly connected of adjacent socket, just also realized the series connection or parallelly connected between the adjacent LED lamp of control.
The control module comprises a decoder and four data modules, and the data modules have the functions of inputting two-bit binary values and outputting logic high level or logic low level.
The four data modules are respectively a first data module 10, a second data module 11, a third data module 12 and a fourth data module 13, the first data module 10 is electrically connected with the first conduction switch 6 through a conducting wire, the second data module 11 is electrically connected with the second conduction switch 7 through a conducting wire, the third data module 12 is electrically connected with the third conduction switch 8 through a conducting wire, and the fourth data module 13 is electrically connected with the fourth conduction switch 9 through a conducting wire. The control modules also have specific data address values, the data address value range of each control module is 0x 00-0 x07, and the processing unit 3 identifies the position of each control module according to the address values.
The decoder receiving processing unit 3 sends an eight-bit binary value control signal, then converts the control signal into four secondary system values and respectively sends the four secondary system values to the four data modules, and then the data modules send high-level or low-level signals to the conducting switches to enable the conducting switches to be conducted or closed. Where a binary value of 11 is required to output a high level and a two-bit binary value of 00 is required to output a low level.
Specifically, referring to fig. 2, the first conducting switch 6 receives a logic high level signal of the second data module 11, and can conduct the adjacent positive interface 1 and the adjacent positive interface 1; the second conducting switch 7 receives a logic high level signal of the second data module 11, and can conduct the adjacent positive interface 1 and the adjacent negative interface 2; the third conducting switch 8 receives a logic high level signal of the third data module 12, and can conduct the adjacent negative interface 2 and the negative interface 2; the fourth conducting switch 9 receives a logic high level signal of the fourth data module 13, and can conduct the adjacent negative interface 2 and the positive interface 1.
The open circuit detection unit 5 is used for detecting whether the LED lamp is open circuit or not, each LED lamp is connected with one open circuit detection unit 5, the open circuit detection units 5 send detection results to the processing unit 3 in a one-bit binary value mode, wherein 0 is that the LED lamp is not damaged, and 1 is that the LED lamp is damaged.
Specifically, the open circuit detection unit 5 includes a diode and a schmitt trigger connected in series, the anode of the diode is connected to the anode or the cathode of the LED lamp, the schmitt trigger is connected to the cathode of the diode by a signal, and the schmitt trigger is connected to the processing unit 3 by a signal. When the LED lamp is in an open circuit, no current passes through the diode, the Schmidt trigger senses voltage change and sends an open circuit signal to the processing unit 3, the processing unit 3 sends a control signal to the decoder after receiving the open circuit signal, and the open circuit LED lamp and at least one adjacent LED lamp are controlled to be connected in parallel through the data module and the conduction switch so as to prevent the whole lamp holder circuit from being out of work due to the fact that the damaged open circuit LED lamp is connected with the adjacent LED lamps in series.
Furthermore, the LED lamp short-circuit detection device further comprises a short-circuit detection unit in signal connection with the processing unit 3 and used for detecting whether the LED lamps are in short circuit or not, each LED lamp is connected with one short-circuit detection unit, the short-circuit detection unit sends a short-circuit signal to the processing unit 3, the processing unit 3 sends a control signal to the series/parallel control unit 4, the short-circuit LED lamps and the adjacent LED lamps are controlled to be connected in series, and the condition that the LED lamps connected in parallel cannot work due to the short circuit of the LED lamps is avoided. In this embodiment, the short circuit detection unit is a current sensor, is disposed between the anode and the cathode of the LED lamp, and determines whether the LED lamp is short-circuited by detecting the current between the anode and the cathode of the LED lamp. The short circuit detection unit is arranged, so that the LED lamp can be connected with the adjacent LED lamp in series when the LED lamp is in short circuit, and the condition that the LED lamp connected with the LED lamp in parallel does not work due to the short circuit of the LED lamp is prevented.
The working process of the present invention is further explained as follows:
in an initial state, the LED lamps are divided into N groups, each group comprises M LED lamps which are connected in parallel, and the N groups are connected in series, which is referred to as a connection mode of N series and M parallel for short.
Firstly, the processing unit 3 obtains a detection result signal of the open circuit detection unit 5, and obtains the number of the actual LED lamps which can normally work, and the number is recorded as P.
If P satisfies N (M-1) is less than or equal to P < N M, then the N strings (M-1) are connected in parallel, and the connection is carried out according to the following mode:
(1) if P is N (M-1), a complete connection mode of N series-parallel connection of M is carried out;
(2) if P is equal to N (M-1) +1, the connection mode in which the first N (M-1) -M LED lamps are connected in series in M-1 is denoted as C1, the connection mode in which the remaining (M-1) +1 LEDs are connected in parallel is denoted as B1, and C1 and B1 are connected in series to form N groups of series connection, and the voltage in parallel connection with the original N groups of M is the same.
(3) If W is equal to M-1, and P is equal to N (M-1) + W, the connection mode in which the first M-1 LED lamps are connected M-1 in parallel is denoted as C1, the connection mode in which the remaining P- (M-1) LED lamps are connected N-1 in series-M in parallel is denoted as B1, and then C1 and B1 are connected in series to form a connection mode in which N groups are connected in series, and the voltage in parallel with the original N groups M is the same.
After the processing unit 3 determines the serial-parallel connection mode of the remaining and intact LED lamps, the processing unit 3 sends control signals to the control modules to implement the serial-parallel connection mode between the LED lamps.
According to the invention, the circuit of each LED lamp is independently controlled on the lamp holder main body 16, so that detection and feedback can be carried out under the condition that the LED lamp is damaged, and voltage distribution and adjustment are convenient. The voltage distribution operation of series-parallel connection can be carried out on odd or even LED lamps, the voltage and current are reasonably distributed, the condition that the whole lamp strip is extinguished due to damage of the LED lamps is prevented, and the cost of later maintenance and replacement of the lamp strip is reduced.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, it is still within the scope of the present invention if they fall within the scope of the claims of the present invention and their equivalents.
Claims (6)
1. An LED brightening lamp strip voltage distribution lamp holder is characterized in that: the method comprises the following steps:
the lamp holder main body is provided with a plurality of LED lamps;
the series/parallel control units are arranged between the adjacent LED lamps and are used for controlling the adjacent LED lamps to be connected in series or in parallel;
the LED lamp comprises a plurality of open circuit detection units, a light source and a control unit, wherein each open circuit detection unit is connected with each LED lamp and used for detecting whether the LED lamp is open circuit or not;
the processing unit is in signal connection with both the series/parallel control unit and the disconnection detection unit, when the LED lamp is disconnected, the disconnection detection unit sends a disconnection signal to the processing unit, the processing unit sends a control signal to the series/parallel control unit, and the LED lamp which is controlled to be disconnected is connected with at least one adjacent LED lamp in parallel;
the LED lamp short-circuit detection device comprises a short-circuit detection unit in signal connection with the processing unit and used for detecting whether the LED lamp is short-circuited or not, each LED lamp is connected with one short-circuit detection unit, the short-circuit detection unit sends a short-circuit signal to the processing unit, the processing unit sends a control signal to the serial/parallel control unit, and the LED lamp which is short-circuited is controlled to be connected with the adjacent LED lamp in series.
2. The LED brightened light bar voltage distribution light holder of claim 1, wherein the light holder body is provided with a plurality of sockets, each socket comprises a positive interface and a negative interface, and the positive and negative electrodes of the LED light are respectively disposed at the positive interface and the negative interface.
3. The LED luminary strip voltage distribution light holder of claim 2, wherein said serial/parallel control unit comprises a control module and four on-switches, said four on-switches are respectively used for switching on or off between said positive interfaces, between said negative interfaces, between said positive interface and said negative interface, and between said negative interface and said positive interface of adjacent sockets, said processing unit sends a control signal to said control module, and said control module controls said four on-switches to be switched on or off.
4. The LED brightened light bar voltage distribution light holder of claim 3, wherein the control module comprises a decoder and four data modules, the processing unit sends an eight-bit binary value control signal to the decoder, the decoder converts the four binary values to be sent to the data modules respectively, and the data modules send high or low level signals to the on-switch to turn on or off the on-switch.
5. The LED brightened light bar voltage distribution light holder of claim 1, wherein the open circuit detection unit comprises a diode and a schmitt trigger connected in series, wherein the diode is connected to the positive or negative electrode of the LED light, and the schmitt trigger is connected to the processing unit.
6. The LED illuminated lamp strip voltage distribution socket of claim 1, wherein the short detection unit is a current sensor disposed between the positive and negative poles of the LED lamp.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010909836.9A CN112032678B (en) | 2020-09-02 | 2020-09-02 | LED brightening lamp strip voltage distribution lamp stand |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010909836.9A CN112032678B (en) | 2020-09-02 | 2020-09-02 | LED brightening lamp strip voltage distribution lamp stand |
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| CN112032678B true CN112032678B (en) | 2022-07-01 |
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| CN112032678A (en) | 2020-12-04 |
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