Light emitting unit and light emitting device

Abstract

The utility model discloses a kind of light-emitting unit and light-emitting device, light-emitting unit includes light-transmitting substrate, light-emitting module, encapsulation module and connecting module, the light-transmitting substrate has first surface, and second surface opposite with the first surface, the first surface is provided with connecting circuit;The light-emitting module includes at least one LED chip, the LED chip is installed on the first surface, and electrically connected to the connecting circuit;The encapsulation module is used to integrate encapsulation of the light-emitting module, and exposes the external connecting end of the connecting module;The connecting module is electrically connected to the connecting circuit, and set in the edge area of the light-transmitting substrate.The utility model embodiment solves the technical problem that the light-emitting effect of existing light-emitting unit is not perfect.

Description

Technical Field

[0001] This utility model relates to the field of electronics, and in particular to a light-emitting unit and a light-emitting device. Background Technology

[0002] Existing light-emitting units, such as LED light strips, typically employ a single-sided light-emitting structure. This means that LED chips are installed on the front side of an opaque circuit board, and the light emitted by the LED chips is emitted from the front of the circuit board. To ensure the light output rate on the front side, a white reflective layer is often laid on the area on the front of the circuit board where no LED chips are installed, and a light-shielding layer is laid on the back of the circuit board to ensure that all the light emitted by the LEDs is emitted from the front of the circuit board.

[0003] With the advancement of technology, LED lighting is being used more and more widely, and single-sided light-emitting units can no longer meet the application needs of some scenarios. Utility Model Content

[0004] The present invention provides a light-emitting unit and a light-emitting device that solves the technical problem that the light-emitting effect of existing light-emitting units is not perfect.

[0005] To address the aforementioned technical problems, this utility model provides a light-emitting unit, including a light-transmitting substrate, a light-emitting module, an encapsulation module, and a connection module, wherein...

[0006] The light-transmitting substrate has a first surface and a second surface opposite to the first surface, and the first surface is provided with a connection circuit.

[0007] The light-emitting module includes at least one LED chip, which is mounted on the first surface and electrically connected to the connection circuit.

[0008] The encapsulation module is used to encapsulate the light-emitting module in one piece and expose the external connection end of the connection module.

[0009] The connection module is electrically connected to the connection circuit and is disposed in the edge region of the light-transmitting substrate.

[0010] To address the aforementioned technical problems, this utility model embodiment also provides a light-emitting device, including a support and at least one of the aforementioned light-emitting units, wherein...

[0011] The bracket includes a bracket body, an external power interface and at least one internal power interface disposed on the bracket body, the external power interface being connected to the internal power interface, and the internal power interface being used for adapter plugging into the connection module in the light-emitting unit.

[0012] Beneficial effects

[0013] The light-emitting unit and light-emitting device provided in this embodiment of the utility model adopt a light-transmitting substrate to realize multi-faceted light emission of the light-emitting unit. Moreover, the light-emitting unit can be used as an independent electronic device and can be plugged into the bracket body through a connection module for easy installation and replacement.

[0014] Other features and corresponding beneficial effects of this utility model will be described in the latter part of the specification, and it should be understood that at least some of the beneficial effects become obvious from the description in this utility model specification. Attached Figure Description

[0015] Figure 1 A schematic diagram of the light-emitting unit provided in Embodiment 1 of this utility model;

[0016] Figure 2 A schematic diagram of another light-emitting unit provided in Embodiment 1 of this utility model;

[0017] Figure 3 A schematic diagram of another light-emitting unit provided in Embodiment 1 of this utility model;

[0018] Figure 4 This is a planar schematic diagram of another light-emitting unit provided in Embodiment 1 of this utility model. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0020] Example 1:

[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. An embodiment of this utility model provides a light-emitting unit, see reference... Figures 1 to 4 The light-emitting unit includes a light-transmitting substrate 11, a light-emitting module, a packaging module, and a connection module 14, wherein...

[0022] The light-transmitting substrate 11 has a first surface 11a and a second surface 11b opposite to the first surface 11a. The first surface 11a is provided with a connection circuit (not shown in the figure).

[0023] The light-emitting module includes at least one LED chip 121, which is mounted on the first surface 11a and electrically connected to the connection circuit.

[0024] The encapsulation module is used to encapsulate the light-emitting module as a whole and expose the external connection end of the connection module 14;

[0025] The connection module 14 is electrically connected to the connection circuit and is located in the edge area of ​​the light-transmitting substrate 11.

[0026] In some embodiments, the thickness of the light-transmitting substrate 11 is from 0.012 mm to 0.35 mm, and an appropriate thickness of the light-transmitting substrate 11 can be selected according to actual needs. A transparent substrate with this thickness range has a certain structural strength, which can ensure load-bearing capacity and resistance to external forces, while also taking into account sufficient light transmittance.

[0027] In some embodiments, the light transmittance of the light-transmitting substrate 11 is greater than or equal to 70%, and the light transmittance of the light-transmitting substrate 11 with different light transmittance can adapt to the user needs in different scenarios.

[0028] In some embodiments, the light-transmitting substrate 11 includes a light-transmitting flexible substrate. The light-transmitting flexible substrate has properties such as being bendable, rollable, and foldable, and can be arranged according to spatial layout requirements.

[0029] In some embodiments, the light-transmitting flexible substrate includes a polyethylene terephthalate (PET) film.

[0030] In some embodiments, the shape of the light-transmitting substrate 11 includes: square, rectangle, polygon, circle, ellipse, ring, irregular shape, or object-mimicking shape. Among them, the object-mimicking shape includes, but is not limited to, leaf shape, tree branch shape, number shape, rabbit shape, pumpkin shape, etc.

[0031] In some embodiments, LED chip 121 may be a flip-chip LED chip.

[0032] In some embodiments, the LED chip 121 uses a light-transmitting substrate, such as a sapphire substrate.

[0033] In some embodiments, the light-emitting module includes a plurality of LED chips 121, which can be connected in series, in parallel, or in a combination via a connection circuit. The connection circuit can be simplified as much as possible.

[0034] In some embodiments, the arrangement of the LED chips 121 is adapted to the shape of the light-transmitting substrate 11. The user can arrange the LED chips 121 according to the shape of the light-transmitting substrate 11.

[0035] In some embodiments, the connection module 14 includes a separately disposed positive connection terminal and a negative connection terminal. The separately disposed positive connection terminal and negative connection terminal can be disposed at opposite ends of the light-transmitting substrate.

[0036] In some embodiments, the connection module 14 is an integrated connection terminal, which integrates a positive connection port and a negative connection port. The integrated connection terminal avoids two power connections, reduces the number of connection terminals, and correspondingly reduces the number of internal electrical interfaces on the bracket body.

[0037] The connection terminal has an external connection end and an internal connection end. The internal connection end is electrically connected to the connection circuit, while the external connection end is used to connect to external circuits, such as the internal electrical interface on the connection bracket body. The internal connection end can be a plug-in type.

[0038] The connecting module 14 is disposed in the edge region of the light-transmitting substrate 11, including but not limited to both ends of the light-transmitting substrate 11, depending on the shape of the light-transmitting substrate 11. Disposing it in the edge region can avoid light blocking and also facilitates insertion with the bracket.

[0039] In some embodiments, reference Figure 1 The encapsulation module includes a first encapsulation body 131, which covers the first surface 11a and encapsulates the light-emitting module in one piece, exposing the external connection end of the connection module 14.

[0040] The coverage area of ​​the first package 131 may include all or part of the remaining area on the first surface 11a other than the LED chip 121, in addition to the LED chip 121. Optionally, the first package 131 is formed by continuously moving adhesive dispensing over the coverage area.

[0041] In some embodiments, reference Figure 2 The encapsulation module includes a first encapsulation body 131 and a second encapsulation body 132. The first encapsulation body 131 covers the first surface 11a and encapsulates the light-emitting module in one piece. The second encapsulation body 132 covers the second surface 11b and encapsulates the second surface 11b in one piece, exposing the external connection end of the connection module 14.

[0042] The coverage area of ​​the first package 131 may include all or part of the remaining area on the first surface 11a, excluding the LED chip 121, in addition to the LED chip 121. The coverage area of ​​the second package 132 may include all or part of the second surface 11b. Optionally, the first package 131 and the second package 132 are integrally molded structures. Optionally, the first package 131 and the second package 132 are formed by continuously dispensing adhesive over the coverage area.

[0043] In some embodiments, reference Figure 3 and Figure 4 ,and Figure 1 and Figure 2The difference between the light-emitting unit shown is that the encapsulation module includes a third encapsulation body 133, which surrounds the light-transmitting substrate 11, integrating the light-transmitting substrate 11 and the light-emitting module into a single encapsulation, exposing the external connection end of the connection module 14; and the connection module 14 is an integrated connection terminal, located at one end of the transparent substrate 11, integrating a positive connection port and a negative connection port. Figure 4 As shown, the light-transmitting substrate 11 is pentagonal, and the arrangement shape of the LED chips 121 is adapted to the shape of the light-transmitting substrate 11.

[0044] Optionally, the third package 133 is formed by continuously moving adhesive around the light-transmitting substrate 11.

[0045] In some embodiments, at least one of the first package 131, the second package 132, and the third package 133 may include (not shown in the figures): a phosphor layer and a silicone layer disposed sequentially, with the silicone layer covering the outer surface of the phosphor layer. Taking the first package including the phosphor layer and the silicone layer disposed sequentially as an example, the phosphor layer can be sprayed onto the first surface of the light-transmitting substrate first, in small amounts and multiple times, to encapsulate the light-emitting module integrally. Then, the silicone layer is sprayed onto the outside of the phosphor layer, also in small amounts and multiple times. The silicone layer may be a transparent colloid.

[0046] In some embodiments, the light-emitting unit may also include a control module, which may include a power driver, etc. The power driver includes, but is not limited to, a constant current chip. The constant current chip may be mounted on the first or second surface of the light-transmitting substrate in a flip-chip manner and electrically connected to the connection module and the connection circuit.

[0047] The light-emitting unit provided in this embodiment of the utility model adopts a light-transmitting substrate and combines various packaging methods according to actual needs to realize multi-faceted light emission of the light-emitting unit. Moreover, the light-emitting unit can be used as an independent electronic device and can be plugged into the bracket body through a connection module for easy installation and replacement.

[0048] Example 2:

[0049] This embodiment of the invention provides a light-emitting device, which includes a support and at least one light-emitting unit as described in Embodiment 1 above.

[0050] The bracket includes a bracket body, an external power interface and at least one internal power interface disposed on the bracket body, the external power interface being connected to the internal power interface, and the internal power interface being used for adapter plugging into the connection module in the light-emitting unit.

[0051] The support body can be of various shapes, such as tree-shaped, and the light-emitting unit can be plugged into the trunk or branches. The external power interface can be adapted to a socket in a home or public area for plugging into the socket and drawing power from it. The structure of the internal power interface can be adapted to the structure of the external connection end of the connection module in the light-emitting unit for mating and plugging in, so as to supply power to the connection module in the light-emitting unit through the internal power interface.

[0052] In some embodiments, the light-emitting device may further include a light-transmitting protective cover having an inner space, a bracket disposed within the inner space of the light-transmitting protective cover, and exposing the external power interface. The light-transmitting protective cover may be of various shapes.

[0053] The light-emitting device provided in this embodiment can have a bracket body of various shapes. The bracket has an internal electrical interface that is compatible with the connection module in the light-emitting unit. The light-emitting unit can be plugged into the bracket body to emit light through a simple plug-in action. Moreover, by arranging the position of the internal electrical interface on the bracket body, the light-emitting unit can be plugged into any position on the bracket body, and finally assembled into light-emitting devices of various shapes, which can meet different user needs, have a wide range of applications, and are interesting.

[0054] The above description, in conjunction with specific implementation methods, provides a further detailed explanation of the embodiments of this utility model. It should not be construed that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this utility model, and all such modifications and substitutions should be considered within the protection scope of this utility model.

Claims

1. A light-emitting unit, characterized in that, It includes a light-transmitting substrate, a light-emitting module, a packaging module, and a connection module, among which, The light-transmitting substrate has a first surface and a second surface opposite to the first surface, and the first surface is provided with a connection circuit. The light-emitting module includes at least one LED chip, which is mounted on the first surface and electrically connected to the connection circuit. The encapsulation module is used to encapsulate the light-emitting module in one piece and expose the external connection end of the connection module. The connection module is electrically connected to the connection circuit and is disposed in the edge region of the light-transmitting substrate.

2. The light-emitting unit as described in claim 1, characterized in that, The connection module is an integrated connection terminal, which integrates a positive connection port and a negative connection port; Alternatively, the connection module may include a separately configured positive connection terminal and a negative connection terminal.

3. The light-emitting unit as described in claim 1, characterized in that, The encapsulation module includes a first encapsulation body, which covers the first surface and encapsulates the light-emitting module in one piece. Alternatively, the encapsulation module includes a first encapsulation body and a second encapsulation body, wherein the first encapsulation body covers the first surface and encapsulates the light-emitting module in an integrated manner; The second package covers the second surface and integrally encapsulates the second surface; Alternatively, the encapsulation module may include a third encapsulation body that surrounds the light-transmitting substrate, thereby encapsulating the light-transmitting substrate and the light-emitting module in an integrated manner.

4. The light-emitting unit as described in claim 3, characterized in that, The first package and the second package are integrally formed.

5. The light-emitting unit as described in claim 3, characterized in that, At least one of the first encapsulation body, the second encapsulation body, and the third encapsulation body includes: a phosphor layer and a silicone layer disposed sequentially, wherein the silicone layer covers the outer surface of the phosphor layer.

6. The light-emitting unit as described in claim 1, characterized in that, The arrangement shape of the LED chips in the light-emitting module is adapted to the shape of the light-transmitting substrate.

7. The light-emitting unit as described in claim 1, characterized in that, The thickness of the light-transmitting substrate is from 0.012 mm to 0.35 mm.

8. The light-emitting unit according to any one of claims 1 to 7, characterized in that, The light-transmitting substrate includes a light-transmitting flexible substrate.

9. The light-emitting unit as described in claim 8, characterized in that, The light-transmitting flexible substrate includes a polyethylene terephthalate film.

10. A light-emitting device, characterized in that, The system includes a support and at least one light-emitting unit as described in any one of claims 1 to 9, wherein... The bracket includes a bracket body, an external power interface and at least one internal power interface disposed on the bracket body, the external power interface being connected to the internal power interface, and the internal power interface being used for adapter plugging into the connection module in the light-emitting unit.

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