Double-groove support for LED chip with fluorescent powder and LED chip without fluorescent powder

Abstract

The invention discloses a double-groove support for LED chips with fluorescent powder and without fluorescent powder, which comprises a support metal body and a first plastic layer, and is characterized in that the front surface of the support metal body is at least provided with a first metal groove; the first plastic layer is injection-molded on the front edge area of the support metal body, so that a plastic groove is formed in the middle of the first plastic layer; a plurality of second partition strips are arranged in the plastic groove, and the second partition strips are used for dividing the first metal groove into a plurality of independent groove areas; an LED blue light chip is fixed in one groove area, and fluorescent powder is laid in the groove area corresponding to the LED blue light chip. And only the LED chips are fixed in other groove areas. According to the invention, the fluorescent powder can be excited to emit white light by means of the LED blue light chip, and the white light can be generated by mixing light through the LED chips with various primary colors. Therefore, in different scenes of low color temperature and high color temperature, different light emitting modes can be selected respectively, and the energy efficiency of the LED lighting system is effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of LED lamp bead brackets, and specifically to a double-groove bracket that accommodates both phosphor-containing and phosphor-free LED chips. Background Art

[0002] In LED lighting and display technologies, traditional LED lighting systems mostly rely on LED blue chips acting on phosphors to generate white light; however, traditional LED lighting systems have low energy efficiency at low color temperatures; in recent years, the phosphor-free multi-primary-color LED technology has gradually attracted attention. This technology realizes efficient color output and flexible color temperature adjustment by directly combining multiple primary-color LEDs (such as red, green, blue, etc.) to emit light; however, LED lighting systems without phosphors have low energy efficiency at high color temperatures; in view of the limitations of the above two technologies, in order to better balance the energy efficiency and color temperature adjustment requirements, we provide a double-groove bracket that accommodates both phosphor-containing and phosphor-free LED chips. Summary of the Invention

[0003] The purpose of the present invention is to improve and innovate in view of the disadvantages and problems in the background art, and provide a double-groove bracket that accommodates both phosphor-containing and phosphor-free LED chips.

[0004] A double-groove bracket that accommodates both phosphor-containing and phosphor-free LED chips, comprising: A bracket metal body, on the front of which at least a first metal groove is provided; A first plastic layer, which is injection-molded on the front edge area of the bracket metal body, so that a plastic groove is formed in the middle of the first plastic layer; several second partition strips are arranged in the plastic groove, and the second partition strips are used to divide the first metal groove into several independent groove areas; an LED blue chip is fixed in one of the groove areas, and a phosphor layer is laid in the groove area corresponding to the LED blue chip; while only LED chips are fixed in the remaining groove areas, and no phosphor is laid.

[0005] A further solution is that a first metal groove and a second metal groove are provided on the front of the bracket metal body; at least two first partition strips are arranged in the plastic groove; and the first metal groove is located in the space surrounded by the two first partition strips and the first plastic layer.

[0006] A further solution is that both ends of the second partition strip are connected to the first partition strip.

[0007] A further solution is that the first metal groove and the second metal groove are formed by stamping on the front of the bracket metal body, so that a corresponding first protrusion and a second protrusion are formed on the back of the bracket metal body.

[0008] A further solution is that a plastic connecting part is injection-molded in the plastic groove, glue nails are arranged at intervals on the plastic connecting part, and the height of the glue nails is greater than the thickness of the plastic connecting part.

[0009] A further solution is that a second plastic layer is injection-molded on the back surface of the bracket metal body, the thickness of the second plastic layer is equal to the thicknesses of the first convex part and the second convex part, and the second plastic layer is staggered with the first convex part and the second convex part.

[0010] A further solution is that the plastic groove is circular.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) On the front surface of the bracket metal body of the present invention, at least one first metal groove is provided; the first metal groove is divided into a plurality of independent groove areas by the second partition strip; and in one of the groove areas, an LED blue light chip is fixed, and phosphor is laid in this groove area. And in the remaining groove areas, only LED chips are fixed; with such a design, the present invention can not only use the LED blue light chip to excite the phosphor to emit white light, but also mix the light emitted by multiple primary color LED chips to generate white light. In this way, in different scenarios of low color temperature and high color temperature, different light-emitting methods can be selected respectively, effectively improving the energy efficiency of the LED lighting system. In addition, since the second partition strip separates the independent groove areas from each other, the phosphor will not overflow into the adjacent groove areas, thus not interfering with the light emission of the LED chips in the adjacent groove areas.

[0012] (2) In the present invention, the first metal groove and the first metal groove are formed by stamping on the front surface of the bracket metal body, and the corresponding first convex part and the second convex part are formed on the back surface of the bracket metal body. The first convex part and the second convex part can quickly transfer the heat generated by the LED chip to the aluminum substrate, thereby improving the heat dissipation effect of the LED chip.

[0013] (3) In the present invention, a plastic connecting part is injection-molded in the plastic groove, and glue nails are arranged at intervals on the plastic connecting part; when filling the transparent glue layer into the plastic groove, the glue nails can improve the adhesion of the transparent glue layer, thereby effectively preventing the transparent glue layer from falling off, and further enhancing the connection reliability of the transparent glue layer and ensuring the protection effect of the transparent glue layer; Description of the Drawings Figure 1 It is a front structural schematic diagram of a double-groove bracket that takes into account both phosphor and phosphor-free LED chips provided by an embodiment of the present invention; Figure 2 It is a back structural schematic diagram of a double-groove bracket that takes into account both phosphor and phosphor-free LED chips provided by an embodiment of the present invention.

[0014] Reference numerals: 1, metal bracket body; 101, first metal groove; 102, second metal groove; 103, first protrusion; 104, second protrusion; 2, first plastic layer; 3, second plastic layer; 4, adhesive nail; 5, plastic connecting part; 6, first partition strip; 7, second partition strip. Detailed implementation manners

[0015] To make the objectives, features and advantages of the present invention more obvious and understandable, the following provides a detailed description of the specific implementation manners of the present invention with reference to the accompanying drawings.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this invention belongs. The terms used in the description of the present invention herein are for the purpose of describing specific implementation manners only and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0017] Please refer to Figure 1 - Figure 2 , the present invention provides a double-groove bracket that accommodates both phosphor-containing and phosphor-free LED chips, including a metal bracket body 1. A first plastic layer 2 is injection-molded on the front edge area of the metal bracket body 1 so that a plastic groove 201 is formed in the middle of the first plastic layer 2; the plastic groove 201 is circular. The plastic groove 201 is used for subsequent filling of a transparent glue layer, which can not only play a waterproof role to avoid damages such as short circuits and corrosion of the LED chip caused by moisture, but also does not hinder the light emitted by the LED chip from transmitting out.

[0018] Furthermore, a first metal groove 101 is formed by stamping on the front surface of the bracket metal body 1; a corresponding first protrusion 103 is formed on the back surface of the corresponding bracket metal body 1; wherein, the first metal groove 101 is formed in the plastic groove 201. A plurality of second partition bars 7 are further arranged in the plastic groove 201, and the second partition bars 7 are used to separate the first metal groove 101 into a plurality of independent groove areas; an LED blue light chip is fixed in one of the groove areas, and a phosphor is laid in the groove area corresponding to the LED blue light chip to form a phosphor layer, so that the LED blue light chip in this groove area can excite the phosphor to generate white light; and only multi-color LED chips are fixed in the remaining groove areas, and no phosphor is laid. Therefore, the present invention can not only emit white light by exciting the phosphor with the LED blue light chip, but also mix light through the multi-color LED chips to generate white light. In this way, in different scenarios of low color temperature and high color temperature, different light-emitting modes can be selected respectively, thus solving the problem that the LED lighting system with phosphor has low energy efficiency at low color temperature and the LED lighting system without phosphor has low energy efficiency at high color temperature, thereby effectively improving the energy efficiency of the LED lighting system.

[0019] It should be noted that since the second partition bars 7 separate the individual independent groove areas from each other, the phosphor will not overflow into the adjacent groove areas, thus not interfering with the light emission of the LED chips in the adjacent groove areas.

[0020] In this embodiment, the number of the second partition bars 7 is set to two to separate the first metal groove 101 into three independent groove areas. An LED blue light chip can be fixed in the groove area in the middle position and the phosphor can be laid; while in the groove areas at the edges, multi-color LED chips are fixed; or an LED blue light chip can be fixed in the groove areas at the edges and the phosphor can be laid, and multi-color LED chips are fixed in the groove area in the middle. Those skilled in the art can flexibly select according to the actual situation, and the applicant does not make specific restrictions; in addition, those skilled in the art can also flexibly set the number of the second partition bars 7 according to the actual situation, and the applicant does not make specific restrictions.

[0021] In some preferred embodiments, a second metal groove 102 is also stamped on the front surface of the bracket metal body 1; a multi-color LED chip is fixed in the second metal groove 102, and no second partition strip 7 for partitioning is provided in the second metal groove 102. At least two first partition strips 6 are provided in the plastic groove 201; and the first metal groove 101 is located in the space surrounded by the two first partition strips 6 and the first plastic layer 2, and both ends of the second partition strip 7 are connected to the first partition strip 6. In this way, the first partition strip 6 can prevent the phosphor in the first metal groove 101 from overflowing into the second metal groove 102, so as not to interfere with the light emission of the LED chip in the second metal groove 102.

[0022] It should be noted that for the multi-color LED chip, the inner walls of the first metal groove 101 and the second metal groove 102 can reflect the light emitted by various color LED chips, so that the light emitted by the multi-color LED chips is fully mixed together, thereby improving the light mixing effect of the multi-color LED chips; and since the first metal groove 101 and the second metal groove 102 limit the light-emitting angle of the LED chip, it can play a role in concentrating light and improve the light efficiency of the LED lamp bead. For the LED blue light chip used to excite the phosphor, the first metal groove 101 is convenient for laying the phosphor to form a phosphor layer. In addition, since the first protrusion 103 and the second protrusion 104 are used to contact the aluminum substrate of the lamp board, the heat generated by the LED chip can be quickly transferred to the aluminum substrate through the good heat conduction performance between metals, thereby effectively improving the heat dissipation effect of the LED chip.

[0023] Optionally, a plastic connecting portion 5 is injection-molded in the plastic groove 201. The plastic connecting portion 5 is injection-molded into one body with the inner ring of the first plastic layer 2. Glue nails 4 are arranged at intervals on the plastic connecting portion 5, and the height of the glue nails 4 is greater than the thickness of the plastic connecting portion 5. During the subsequent process of filling the transparent glue, the glue nails 4 can improve the adhesion of the transparent glue layer and firmly fix the transparent glue layer, so as to effectively prevent the transparent glue layer from falling off, and further enhance the connection reliability of the transparent glue layer.

[0024] Optionally, a second plastic layer 3 is injection-molded on the back surface of the bracket metal body 1. The thickness of the second plastic layer 3 is equal to the thickness of the first protrusion 103 and the second protrusion 104, and the second plastic layer 3 is staggered from the first protrusion 103 and the second protrusion 104. By injection-molding the first plastic layer 2 and the second plastic layer 3 on the front and back surfaces of the bracket metal body 1 respectively, the waterproof and insulation effects of the bracket metal body 1 can be improved, and at the same time, it will not affect the light emission of the LED chip on the front surface of the bracket metal body 1 and the heat dissipation of the first protrusion 103 and the second protrusion 104 on the back surface of the bracket metal body 1.

[0025] It should be noted that the first plastic layer 2, the second plastic layer 3, the plastic nails 4, the plastic connecting part 5, the first partition strip 6 and the second partition strip 7 are all made of nylon PPA material. During the injection molding process of obtaining the first plastic layer 2 and the second plastic layer 3, the plastic connecting part 5, the plastic nails 4, the first partition strip 6 and the second partition strip 7 are simultaneously injection molded. The plastic connecting part 5, the plastic nails 4, the first partition strip 6 and the second partition strip 7 are all injection molded in the plastic groove 201.

[0026] The working principle of the present invention is as follows: First, a first metal groove 101 and a second metal groove 102 are formed by stamping on the front surface of the bracket metal body 1, and a first protrusion 103 and a second protrusion 104 corresponding to the first metal groove 101 and the second metal groove 102 are formed on the back surface of the bracket metal body 1. Then, the first plastic layer 2, the second plastic layer 3, the plastic nails 4, the plastic connecting part 5, the first partition strip 6 and the second partition strip 7 are injection molded on the bracket metal body 1. Then, an LED blue light chip or a multi-primary color LED chip is fixed in some groove areas, and the LED chip and the pins are electrically connected by wire bonding; a phosphor layer is laid in the groove area of the LED blue light chip to form a phosphor layer; Finally, a transparent glue layer is filled into the plastic groove 201, and the plastic nails 4 can firmly fix the transparent glue layer, thereby effectively preventing the transparent glue layer from falling off, and further enhancing the connection reliability of the transparent glue layer. The transparent glue layer can not only play a waterproof role, preventing moisture from invading the area where the LED chip is located and avoiding damages such as short circuit and corrosion caused by moisture, but also does not hinder the light emitted by the LED chip from transmitting out.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the invention.

[0028] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0029] Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. The mention of "embodiment" in this context means that the specific features, structures, or characteristics described in connection with the embodiment can be included in at least one embodiment of this application. The appearance of this phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art can explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application. Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A double-groove bracket that accommodates both phosphor-containing and phosphor-free LED chips, characterized in that, Comprising: A stent metal body (1), on the front surface of the stent metal body (1), at least a first metal groove (101) is provided; A first plastic layer (2), the first plastic layer (2) is injection-molded on the front edge area of the stent metal body (1), so that a plastic groove (201) is formed in the middle of the first plastic layer (2); several second partition strips (7) are arranged in the plastic groove (201), and the second partition strips (7) are used to divide the first metal groove (101) into several independent groove areas; an LED blue light chip is fixed in one of the groove areas, and a phosphor is laid in the groove area corresponding to the LED blue light chip to form a phosphor layer; while only an LED chip is fixed in the remaining groove areas and no phosphor is laid.

2. The dual-groove bracket for an LED chip that accommodates both phosphor-containing and phosphor-free LED chips according to claim 1, wherein: On the front surface of the stent metal body (1), a first metal groove (101) and a second metal groove (102) are provided; at least two first partition strips (6) are arranged in the plastic groove (201); and the first metal groove (101) is located in the space surrounded by the two first partition strips (6) and the first plastic layer (2).

3. A dual-groove bracket that accommodates both phosphor-containing and phosphor-free LED chips according to claim 2, characterized in that: Both ends of the second partition strip (7) are connected to the first partition strip (6).

4. A dual-groove bracket that accommodates both phosphor-containing and phosphor-free LED chips according to claim 2, characterized in that: The first metal groove (101) and the second metal groove (102) are formed by stamping on the front surface of the stent metal body (1), so that a corresponding first protrusion (103) and a second protrusion (104) are formed on the back surface of the stent metal body (1).

5. The dual-groove bracket for an LED chip that accommodates both phosphor-containing and phosphor-free LED chips according to claim 1, wherein: A plastic connecting part (5) is injection-molded in the plastic groove (201), and glue nails (4) are arranged at intervals on the plastic connecting part (5), and the height of the glue nails (4) is greater than the thickness of the plastic connecting part (5).

6. The dual-groove bracket for both phosphor-containing and phosphor-free LED chips according to claim 5, wherein: A second plastic layer (3) is injection-molded on the back surface of the stent metal body (1), the thickness of the second plastic layer (3) is equal to the thickness of the first protrusion (103) and the second protrusion (104), and the second plastic layer (3) is staggered from the first protrusion (103) and the second protrusion (104).

7. A dual-groove bracket that accommodates both phosphor-containing and phosphor-free LED chips according to claim 1, characterized in that: The plastic groove (201) is circular.

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