CN217484644U - LED lamp panel, display device and lighting device - Google Patents

Abstract

The utility model belongs to the technical field of the LED lamp plate, especially, relate to a LED lamp plate, display device and lighting device, the unable regional accuse light that prior art exists has been solved, the voltage of every parallel circuit is high and the big problem of power, this LED lamp plate includes the base plate, a plurality of LED chips and two at least connectors, the base plate includes back of the body first side and second side, each LED chip sets up on the first side, form 2 at least independent circuits that just all have a plurality of parallel circuits between the part LED chip that does not repeat in every connector and whole LED chips. The utility model discloses LED lamp plate, display device and lighting device have can regional accuse light, reduced the voltage and the advantage of power of every parallel circuit.

Description

LED lamp panel, display device and lighting device

Technical Field

The utility model relates to a LED lamp plate technical field especially relates to a LED lamp plate, display device and lighting device.

Background

In the prior art, the power connection of the LED lamp is realized by using a wire harness, specifically, the two ends of the wire harness are respectively welded on the LED lamp panel and the power panel, so as to supply power to a plurality of LED chips on the LED lamp panel. The electric connection operation is very troublesome, the assembly cost of the LED lamp is high, and automatic assembly cannot be realized.

In addition, even though a connector is used for connecting the LED lamp panel and the power supply, at most one connector is used in the industry, so that a single circuit with a plurality of parallel circuits is formed, and all the LED chips can be turned on/off simultaneously, so that the plurality of LED chips cannot be controlled in a partitioned manner, and the high voltage power of each parallel circuit is large, which is not beneficial to prolonging the service life.

Therefore, it is desirable to provide an LED lamp panel, a display device and a lighting device capable of area light control and reducing the voltage and power of each parallel circuit.

SUMMERY OF THE UTILITY MODEL

The utility model discloses not enough to above-mentioned prior art, for realizing the utility model discloses an aim at provides a LED lamp plate, and it includes: a substrate comprising first and second opposing sides; a plurality of LED chips disposed on the first side; and at least two connectors, wherein at least 2 independent circuits with a plurality of parallel loops are formed between each connector and the non-repeated part of the LED chips in the whole LED chips.

Further, the base plate comprises an aluminum base layer, an insulating layer, a circuit layer and an ink layer which are sequentially stacked, and each LED chip is electrically connected with the circuit layer.

Furthermore, each LED chip and a plurality of pins of the corresponding connector which are electrically connected are welded on the substrate through solder paste so as to be in contact with the circuit layer and realize electric conduction.

Furthermore, the connector comprises a plurality of pins which can define positive and negative signal inputs, each pin is electrically connected with the LED chips located in different areas through the circuit layer, and each pin is controlled to switch each LED chip so as to control light in the areas.

Furthermore, the base plate is set to be long strip-shaped, the connectors are set to be 2, the base plate comprises a long strip-shaped main body and protruding parts which are arranged at two ends of the long strip-shaped main body and protrude relative to the long strip-shaped main body, and one connector is fixed on each protruding part.

Furthermore, a notch with a circular arc is arranged at the intersection angle of each protruding part and the strip main body.

Furthermore, a rectangular through hole is formed in the substrate, the connector is inserted into the through hole in a penetrating mode, a wiring end of the connector abuts against the through hole and is located on one side of the first side face, the protruding edge of the protruding portion, the hole edge of the through hole and the edge of the strip main body close to the protruding edge and the hole edge are parallel to each other, and the extension line of the edge of the protruding portion passes through the connector.

Further, the LED lamp panel is designed to have 96 LED chips arranged in a straight line, and includes 2 independent circuits each having 4 parallel loops, and 12 LED chips are connected in series in each loop.

In order to realize the utility model discloses another purpose provides a display device, and it includes backlight unit, and backlight unit includes above arbitrary LED lamp plate.

In order to realize the utility model discloses another purpose provides a lighting device, and it includes lighting module, and lighting module includes above arbitrary LED lamp plate.

The utility model discloses the beneficial effect who has does: through adopting two at least connectors and setting up correspondingly at least 2 independent and all have the circuit of a plurality of parallel circuits to can not only regional accuse light, still owing to reduced the number of the LED chip that establishes ties in each parallel circuit, thereby can reduce the voltage and the power of every parallel circuit in every independent circuit, be favorable to prolonging the life of the LED lamp plate including the LED chip.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, without any creative work, other drawings can be obtained according to the drawings, and these drawings are all within the scope of the present invention.

Fig. 1 is a front view of an LED lamp panel according to an embodiment of the present invention;

FIG. 2 is an enlarged partial view of FIG. 1 at A;

FIG. 3 is a partial pin layout corresponding to the connector shown in FIG. 1;

FIG. 4 is a circuit diagram corresponding to a connector and a plurality of LED chips shown in FIG. 1;

FIG. 5 is a schematic view of a portion B of FIG. 1;

FIG. 6 is a partial pin wiring schematic corresponding to the alternative connector shown in FIG. 5;

FIG. 7 is a circuit diagram corresponding to another connector and a plurality of LED chips shown in FIG. 5;

fig. 8 is a schematic cross-sectional view of a substrate of an LED lamp panel according to an embodiment of the present invention;

description of reference numerals:

1-a substrate; 11-an aluminum base layer; 12-an insulating layer; 13-a line layer; 14-an ink layer; 15-an elongate body; 16-a protrusion; 17-a notch; 2-LED chip; 3-a connector; 31-terminal.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element identified by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. In case of conflict, various features of the embodiments and examples of the present invention may be combined with each other and are within the scope of the present invention.

Referring to fig. 1 to 8, as an object of the present invention, there is provided an LED lamp panel, which includes a substrate 1, a plurality of LED chips 2 and at least two connectors 3, wherein the substrate 1 includes a first side and a second side opposite to each other, each LED chip 2 is disposed on the first side, at least 2 independent circuits each having a plurality of parallel loops are formed between each connector 3 and the non-repetitive part of the LED chips 2 in all the LED chips 2, for example, two connectors 3, one connector 3 and a part of all the LED chips 2 form one circuit having a plurality of parallel loops, another connector 3 and another part of all the LED chips 2 form another circuit having a plurality of parallel loops, and the two circuits respectively and independently work to dim some or all of the LED chips 2 in different parts, therefore, because the utility model discloses the LED lamp plate adopts two at least connectors 3 and sets up 2 at least independent circuits that just all have a plurality of parallel circuit correspondingly to can not only regional accuse light, still owing to reduced the number of the LED chip 2 of establishing ties in each parallel circuit, thereby can reduce the voltage and the power of every parallel circuit in every independent circuit, be favorable to prolonging the life of the LED lamp plate including LED chip 2.

Referring to fig. 8 in combination, preferably, the substrate 1 includes an aluminum base layer 11, an insulating layer 12, a circuit layer 13 and an ink layer 14, which are sequentially stacked, wherein a copper foil of the circuit layer 13 has a thickness of 1OZ, the ink layer 14 has a thickness of 20-40um, the thickness of the entire substrate 1 is 0.8mm, and each LED chip 2 is electrically connected to the circuit layer 13, so that each layer of the entire substrate 1 has a compact structure and a good conductive effect.

Specifically, the LED chips 2 and the plurality of pins of the connector 3 electrically connected to each other are soldered to the substrate 1 by solder paste so as to be in contact with the wiring layer 13 and to achieve electrical conduction, and since the number of the connectors 3 is two or more, soldering is used to contribute to improvement in soldering efficiency.

Referring to fig. 3, 4, 6 and 7 in combination, preferably, the connector 3 includes a plurality of pins capable of defining positive and negative signal inputs, and each pin is electrically connected to the LED chips 2 located in different regions through the circuit layer 13, and the LED chips 2 are switched by controlling each pin to perform regional light control, so that all the LED chips 2 can be flexibly divided into different shapes and different regions to be electrically connected to the corresponding different connectors 3, and the lighting and extinguishing of the corresponding LED chips 2 are controlled by the power-on condition of the pins in the connector 3, thereby implementing the partition control.

Referring to fig. 2 and 5 in combination, specifically, the substrate 1 is a long strip, the number of the connectors 3 is 2, the substrate 1 includes a long strip main body 15 and protruding portions 16 disposed at two ends of the long strip main body 15 and protruding relative to the long strip main body 15, and a connector 3 is fixed on each protruding portion 16, so that, since the two protruding portions 16 are disposed at symmetrical edges of the two ends of the whole substrate 1, not only is the fixing of the connector 3 facilitated, but also the occupation of the wiring area of each LED chip 2 on the substrate 1 is avoided as much as possible, which is helpful for having enough wiring area to obtain 2 independent circuits each having a plurality of parallel loops.

Preferably, each protruding portion 16 is provided with a notch 17 having an arc at the intersection angle of the strip main body 15, the diameter of the arc can be set to 1mm, and the two notches 17 can facilitate the assembly, packaging and fixing of the LED lamp panel.

Preferably, a rectangular through hole is formed in the substrate 1, the connector 3 is inserted into the through hole, the terminal 31 of the connector 3 abuts against the through hole and is located on one side of the first side face, the protruding edge of the protruding portion 16, the hole edge of the through hole and the edge of the strip main body 15 adjacent to the protruding edge and the hole edge are parallel to each other, the extension line of the edge passes through the connector 3, that is, each connector 3 is parallel to the horizontal extension of the strip main body 15, the connection line of the terminal 31 can be facilitated, the connector 3 is divided into two parts and is located on the strip main body 15 and the protruding portion 16 respectively, and the fixing strength of the LED lamp panel to the connector 3 is enhanced.

With reference to fig. 4 and 7, preferably, the LED lamp plate is set to have 96 LED chips 2 that are arranged in a straight line, the LED lamp plate includes 2 independent circuits that all have 4 parallel circuits, 12 LED chips 2 are established ties in every circuit, namely every connector 3 all can independently control the switch of 12 LED chips 2 in 4 parallel circuits, realize 8 regional dimming, in addition, compare and adopt two components of a whole that can function independently lamp plates to splice about in current LED lamp plate and form, need very high die sinking expense and paster expense, and the utility model discloses the LED lamp plate adopts an independent holistic lamp plate to can reduce die sinking expense and paster expense and then reduction in production cost.

As another object of the utility model provides a display device, it includes backlight unit, and backlight unit includes any kind above LED lamp plate, and backlight unit can obtain the beneficial effect of any kind above LED lamp plate, no longer gives unnecessary details here, consequently, display device has can regional accuse light, long service life, can reduction in production cost's advantage.

As a further object of the utility model provides a lighting device, it includes lighting module, and lighting module includes above any kind of LED lamp plate, and lighting module can obtain the beneficial effect of above any kind of LED lamp plate, no longer gives redundant details here, and consequently, lighting device has can regional accuse light, long service life, can reduction in production cost's advantage.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and any modifications, equivalents, improvements and the like that do not depart from the spirit and principle of the present invention should be construed as being included in the scope of the present invention.

Claims (10)

1. The utility model provides a LED lamp plate which characterized in that includes:

a substrate comprising opposing first and second sides;

a plurality of LED chips disposed on the first side;

and at least two connectors, wherein at least 2 independent circuits with a plurality of parallel loops are formed between each connector and the non-repeated partial LED chips in all the LED chips.

2. The LED lamp panel according to claim 1, wherein the substrate comprises an aluminum base layer, an insulating layer, a circuit layer and an ink layer which are sequentially stacked, and each LED chip is electrically connected with the circuit layer.

3. The LED lamp panel according to claim 2, wherein each LED chip is soldered to the substrate by solder paste with a plurality of pins of the connector electrically connected to the corresponding LED chip so as to contact the circuit layer and achieve electrical conduction.

4. The LED lamp panel of claim 2, wherein the connector comprises a plurality of pins defining positive and negative signal inputs, each pin electrically connected to the LED chips located in a different area through the circuit layer, and each pin is controlled to switch the LED chips for area light control.

5. The LED lamp panel according to claim 1, wherein the base is configured as a long bar, the number of the connectors is 2, the base includes a long bar main body and protruding portions disposed at two ends of the long bar main body and protruding from the long bar main body, and one of the connectors is fixed to each of the protruding portions.

6. The LED lamp panel of claim 5, wherein a notch having a circular arc is formed at an intersection angle of each protrusion and the strip body.

7. The LED lamp panel according to claim 5, wherein the substrate is provided with a rectangular through hole, the connector is inserted into the through hole, a terminal of the connector abuts against the through hole and is located on one side of the first side face, a protruding edge of the protruding portion, a hole edge of the through hole and a side edge of the strip main body adjacent to the protruding edge and the through hole are parallel to each other, and an extension line of the strip edge passes through the connector.

8. The LED lamp panel of claim 1, wherein the LED lamp panel is provided with 96 LED chips arranged in a straight line, and the LED lamp panel comprises 2 independent circuits each having 4 parallel loops, and 12 LED chips are connected in series in each loop.

9. A display device, comprising a backlight module, wherein the backlight module comprises the LED lamp panel according to any one of claims 1 to 8.

10. An illumination device, characterized in that it comprises an illumination module, the illumination module comprises the LED lamp panel of any one of claims 1 to 8.

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