WO2016112550A1

WO2016112550A1 - Led splitter

Info

Publication number: WO2016112550A1
Application number: PCT/CN2015/070948
Authority: WO
Inventors: 孟庆晨; 钟丽
Original assignee: 深圳市锐诚光电科技有限公司
Priority date: 2015-01-17
Filing date: 2015-01-17
Publication date: 2016-07-21

Abstract

The present invention relates to an LED splitter provided with a circuit board therein. The circuit board is provided with a power supply input terminal for accessing a power supply; a cascade terminal, connected to the power supply input terminal in parallel, for connecting to power supply input terminals of other LED splitters and supplying power for other LED splitters; several power supply output units, connected to the power supply input terminal in parallel, for connecting to an LED module and supplying power for each connected LED module. Utilizing the LED splitter provided in the present invention, only one power supply is required to connect to multiple LED splitters and supply power for multiple sets of LED modules.

Description

LED splitter

Technical field

The invention relates to an LED splitter.

Background technique

The current LED splitter only serves as a split line power supply. Disadvantages are as follows: 1. The output current of the power supply is not uniform. If the load voltage of the branch line is different, the power supply current will be different, and the brightness of each LED module will be uneven. 2. There is no fixing device at the connection, and the connection end is off. Hidden dangers, resulting in the entire lighting (lighting) system is not bright, flicker, uneven brightness and other secondary faults; 3, the plug is not waterproof and dustproof; 4, can not cascade down.

technical problem

The technical problem to be solved by the present invention is to provide an LED splitter having the function of cascading other LED splitters.

Technical solution

The present invention is implemented as follows:

An LED splitter, wherein a circuit board is disposed in the LED splitter, and the circuit board is provided with:

Power input terminal for accessing the power supply;

a cascading end, connected in parallel with the power input end, for connecting the power input end of the other LED splitter to supply power to other LED splitters;

A plurality of power output units are connected in parallel with the power input terminal for connecting the LED modules to supply power to the respective connected LED modules.

Further, the power output unit includes a main circuit and a control circuit for supplying power to the LED module connected thereto; the main circuit is provided with a switch unit and a sampling resistor, and the control circuit is provided with a control unit.

Further, the input end of the control unit is electrically connected to the sampling resistor, and the output end is electrically connected to the control end of the switch unit; the control unit is configured to detect a voltage signal of the sampling resistor, and according to the The voltage signal controls the on and off of the switching unit.

Further, the control unit is electrically connected with an alarm indicating unit, and when the control unit detects that the voltage of the sampling resistor is greater than a preset value, the alarm indicating unit is controlled to issue an alarm.

Further, the LED splitter further includes a plurality of connector terminals, and the connector terminal is provided with a latch. When the connector terminal is plugged into the connector terminal, the connector terminal is locked in the Said on the plug terminal.

Further, the LED splitter further includes an outer box, the LED splitter is detachably mounted in the outer box; the outer box includes an upper cover and a lower cover; the upper cover is along a circumference thereof There is an upper cover cover extending downwardly, and the lower cover extends upward along the periphery thereof with a lower cover cover; the lower cover is provided with an annular groove along the circumference thereof, and an annular seal is embedded in the annular groove; the upper cover An annular rib that is engaged with the annular groove along a circumference thereof is disposed, and the upper cover and the lower cover are detachably fastened together, and when the buckle is engaged, the annular rib is integrally embedded in the annular groove, and the whole Pressed against the annular seal.

Further, a peripheral portion of the lower cover is provided with a positioning portion for fixing the outer box, the positioning portion is a screw hole, and the outer box is fixed to the outside by a screw; the LED splitter is disposed in the lower cover The fixing bracket, the LED splitter is connected to the fixing bracket by a rotary snapping manner.

Further, the upper cover surface is provided with a plurality of through holes, and the through holes extend upward along the circumference thereof with an extension portion; the connection line terminal can pass through the extension portion and the through hole and be inserted into the LED splitter The LED splitter further includes a plurality of waterproof casings; when the connecting wire terminal is plugged on the LED splitter, one end of the waterproof casing is sleeved on the connecting line, and the other end is sealed Close to the extension.

Further, the waterproof housing is in the shape of a funnel, the smaller end of which is sealed on the connecting line, and the larger end is sealed and locked to the extension.

Further, a waterproof rubber sleeve is disposed in the waterproof casing, and the waterproof rubber sleeve can be tightly sleeved on the connecting line; when the connecting wire terminal is inserted on the LED splitter, one end of the waterproof casing A sealing sleeve is disposed on the waterproof rubber sleeve.

Beneficial effect

Compared with the prior art, the present invention is provided with a power input end, a cascade end and a plurality of power output units on the LED splitter. The cascading end can be connected to the power input end of other LED splitters to supply power to other LED splitters, and each power output unit can be connected to the LED module to supply power to the respective connected LED modules. By using the LED splitter provided by the invention, only one power supply can be connected to multiple LED splitters to supply power to multiple sets of LED modules.

DRAWINGS

FIG. 1 is a schematic structural view of an LED splitter according to an embodiment of the present invention and a schematic diagram of connection with other LED splitters;

2 is a schematic diagram showing the circuit structure of a circuit board in an LED splitter according to an embodiment of the present invention;

3 is a schematic diagram of a connector terminal in an LED splitter according to an embodiment of the present invention;

4 is a schematic structural anatomy of an LED splitter incorporating a waterproof function according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a lower cover of an LED splitter incorporating a waterproof function according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic structural view of an upper cover of an LED splitter incorporating a waterproof function according to an embodiment of the present invention.

Embodiments of the invention

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

Embodiments of the present invention provide an LED splitter having the function of cascading other LED splitters. As shown in FIG. 1 , a circuit board 1 is disposed in the LED splitter, and the circuit board 1 is provided with a power input end 11 , a cascade end 12 and a plurality of power output units 13 , a cascade end 12 and respective power output units 13 and The power input terminals 11 are connected in parallel. The cascading end 12 is used to connect the power input end 11 of other LED splitters to supply power to other LED splitters, thereby functioning as a cascade of other LED splitters. Each power output unit 13 is used to connect the LED modules to supply power to the respective connected LED modules. The LED splitter provided by the embodiment of the invention can be used as a power source to supply power to other LED splitters, and only one power supply can connect multiple LED splitters to supply power for multiple sets of LED modules. Can save power supply. The power input end 11 and the cascading end 12 can be respectively disposed on both sides of the LED splitter to facilitate cascading.

2 is a schematic diagram showing the circuit structure of the circuit board 1 in the LED splitter according to an embodiment of the present invention. In order to stabilize the output of each power output unit 13 in the LED splitter, each power output unit 13 adopts a special circuit structure. Referring to FIG. 2, the power output unit 13 includes a main circuit and a control circuit for supplying power to the LED module connected thereto. The main circuit is provided with a switch unit 132 and a sampling resistor 133. The control circuit is provided with a control unit 134 and an input of the control unit 134. The sampling end is electrically connected to the sampling resistor 133, and the output end is electrically connected to the control end of the switching unit 132. The control unit 134 is configured to detect the voltage signal of the sampling resistor 133 and control the on and off of the switching unit 132 according to the voltage signal. When an overvoltage occurs in a certain power output unit 13, the corresponding control unit 134 can automatically open the switch unit 132, cut off the circuit, and play a protective role. A switch tube can be employed as the switch unit 132. In addition, the alarm indicating unit 135 can be electrically connected to the control unit 134 in the power output unit 13. When the control unit 134 detects that the voltage of the sampling resistor 133 is greater than a preset value, the alarm indicating unit 135 can be controlled to issue an alarm.

As shown in Figure 3, The LED splitter is provided with a plug-in terminal 6, and the plug-in terminal 6 is provided with a latch 61, which cooperates with a latch 71 provided on the cable terminal 7, and when the two latches are locked, the cable terminal 7 is locked. Immediately on the connector terminal 6, the connection cable can be prevented from coming off.

The LED splitter can also be added with a waterproof function. Figure 4 shows the structural anatomy of the LED splitter with waterproof function. The waterproof function is achieved by detachably mounting the LED splitter in a waterproof outer casing. The outer box comprises an upper cover 2 and a lower cover 3. The upper cover 2 extends downward along its circumference with an upper cover edge 21, and the lower cover 3 extends upward along its circumference with a lower cover edge 31, the upper cover along the 21 and the lower cover The cover is detachably fastened together along the 31. The lower cover cover 31 is provided with an annular groove 32 along its circumference. The upper cover cover is provided with an annular rib along the circumference of the bottom of the cover 21, and an annular sealing ring 5 is embedded in the annular groove 32. When the lower cover is fastened along the 31, the annular rib is integrally embedded in the annular groove 32 and integrally pressed against the annular seal 5 to achieve waterproofing. Specifically, an annular groove 32 may be provided along the periphery of the lower cover edge 31 along its circumference so that the annular seal ring 5 can be stably embedded in the annular groove 32.

As shown in FIG. 5, the peripheral edge of the lower cover 3 may be provided with a positioning portion 33 for fixing the outer casing, and the outer casing is fixed to the outside by the screw passing through the positioning portion 33; the lower cover 3 may be provided with an LED splitter. The fixing bracket 34 is connected by a rotary snap-fit method to fix the LED splitter.

As shown in FIG. 6, a plurality of through holes may be disposed on the surface of the upper cover 2, and each of the through holes extends upwardly along the periphery thereof with an extending portion 22 through which the connecting wire terminal 7 can be inserted through the extending portion 22 and the through hole. On the device. The LED splitter may further include a plurality of waterproof casings 4. When the connecting wire terminal 7 is plugged on the LED splitter, one end of the waterproof casing 4 is sealed on the connecting wire terminal 7, and the other end is sealed and locked to the extending portion. 22 on. The extension portion 22 may be provided with a card slot for fastening the waterproof casing 4. The waterproof casing 4 may have a funnel shape, the smaller end of which is sealed on the connecting line, and the larger end is sealed and locked to the extending portion 22. The advantage of this configuration is that a bevel can be formed on the waterproof casing 4 to prevent water from accumulating on top of the waterproof casing 4. The waterproof casing 4 can also be provided with a waterproof rubber sleeve, and the waterproof rubber sleeve can be tightly sleeved on the connecting line. When the connecting wire terminal 7 is connected to the LED splitter, one end of the waterproof outer casing 4 is sealed and set on the waterproof rubber sleeve. On the other, the waterproof performance can be further enhanced.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Within the scope.

Claims

An LED splitter, wherein a circuit board is disposed in the LED splitter, and the circuit board is provided with:

Power input terminal for accessing the power supply;

a cascading end, connected in parallel with the power input end, for connecting the power input end of the other LED splitter to supply power to other LED splitters;

A plurality of power output units are connected in parallel with the power input terminal for connecting the LED modules to supply power to the respective connected LED modules.
The LED splitter according to claim 1, wherein said power output unit comprises a main circuit and a control circuit for supplying power to the LED module connected thereto; said main circuit is provided with a switch unit and a sampling resistor for controlling A control unit is provided on the circuit.
The LED splitter according to claim 2, wherein the input end of the control unit is electrically connected to the sampling resistor, and the output end is electrically connected to the control end of the switch unit; A voltage signal of the sampling resistor is detected, and the switching of the switching unit is controlled according to the voltage signal.
The LED splitter according to claim 2, wherein the control unit is electrically connected with an alarm indicating unit, and when the control unit detects that the voltage of the sampling resistor is greater than a preset value, controlling the alarm indication The unit issues an alarm.
The LED splitter according to claim 1, further comprising a plurality of connector terminals, wherein the connector terminal is provided with a latch, when the connector terminal is plugged in the connector terminal, The cable terminal is locked to the connector terminal.
The LED splitter according to claim 1, further comprising an outer casing, said LED splitter being detachably mounted in said outer casing; said outer casing comprising an upper cover and a lower cover; The upper cover extends downward along the circumference thereof with an upper cover edge, and the lower cover extends upward along the periphery thereof with a lower cover edge; the lower cover has an annular groove along the circumference thereof, and the annular groove is embedded therein An annular sealing ring; the upper cover is provided with an annular rib engaged with the annular groove along a circumference thereof, and the upper cover and the lower cover are detachably fastened together, and when the buckle is engaged, the annular rib is integrally embedded The annular groove is described and integrally pressed against the annular seal.
The LED splitter according to claim 6, wherein the peripheral edge of the lower cover is provided with a positioning portion for fixing the outer casing, and the positioning portion is a screw hole, and the outer casing is fixed to the outside by a screw; A fixing bracket of the LED splitter is disposed in the lower cover, and the LED splitter is connected to the fixing bracket by a rotating snap.
The LED splitter according to claim 6, wherein the upper cover surface is provided with a plurality of through holes, and the through holes extend upward along an outer edge thereof; and the connecting wire terminal can pass through the extending portion And the through hole is inserted into the LED splitter; the LED splitter further includes a plurality of waterproof casings; when the connecting wire terminal is plugged on the LED splitter, one end of the waterproof casing is sealed The sleeve is sleeved on the connecting line, and the other end is sealed and locked to the extension.
The LED splitter according to claim 8, wherein the waterproof casing is in the shape of a funnel, the smaller end of which is sealed on the connecting line, and the larger end is sealed and locked to the extension. Ministry.
The LED splitter according to claim 8, wherein the waterproof casing is provided with a waterproof rubber sleeve, the waterproof rubber sleeve can be tightly sleeved on the connecting line; when the connecting wire terminal is inserted in the When the LED splitter is on, one end of the waterproof casing is sealed on the waterproof rubber sleeve.