Double-color plastic shell LED light groove

Abstract

The invention provides a double-color plastic shell LED light groove, which comprises a plastic shell, an LED light source, a light emitting diode (LED) light source, an LED light source, an LED light source and a light emitting diode (LED) light source, and is characterized in that the plastic shell is of a frame-shaped structure; the metal strip is fixed in the accommodating groove; and the LED light source is fixed on the metal strip. The plastic shell of the LED light groove with the double-color plastic shell can be made of a thermoplastic heat-conducting PC plastic material and has good rigidity and toughness, the sheet-shaped metal strip is matched, the heat dissipation requirement of an LED lamp bead can be met, the cost of the light groove can be reduced, the LED light groove is formed through extrusion of a double-color extrusion mold, a multi-color structure is easily formed, and the service life of the LED light groove is prolonged. Different colors are presented on different side faces of the plastic shell, so that when the LED light source emits light, the LED lamp groove forms a multi-color light-emitting structure, the multi-color light distribution design of an LED product is facilitated, and more optical design schemes are adapted.

Description

Technical Field

[0001] The invention relates to the technical field of LED lamps, and in particular to a double-color plastic shell LED light trough. Background Art

[0002] With the innovation of science and technology, economic development and social progress, the development of products in the field of LED lighting is also advancing by leaps and bounds. People not only consider the energy saving and environmental protection of product applications, but also pursue the harmonious match between light and environment, bring more health and comfort to people, and pursue a romantic atmosphere; they also consider more economic benefits to create more utilization value of limited resources.

[0003] Reference Figure 1 The existing LED light trough is composed of a large area aluminum alloy shell and a plastic cover. Specifically, the existing LED light trough is composed of an aluminum alloy shell structure 7, a PC (polycarbonate) material transparent cover 71, a plug 72, and an LED light source 73. This lamp has a frame-shaped aluminum alloy shell structure 1, has excellent thermal conductivity and heat dissipation performance, and has good strength.

[0004] However, with the advancement of LED technology, the transmission efficiency of LED light is getting higher and higher, the heat generation of LED lamp beads is decreasing, the cost of the aluminum main structure for the lamp trough is too high, and the aluminum profile is more convenient to make a monochrome structure during processing, which is not convenient for the lighting design of LED products. Therefore, this application provides a two-color plastic shell LED light trough to solve the above problems. Summary of the invention

[0005] Based on the above situation, the main purpose of the present invention is to provide a two-color plastic shell LED light trough to solve the problems that the existing aluminum alloy shell is too expensive, it is not easy to form a two-color structure, and it is not convenient to do the light distribution design of LED products.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A two-color plastic shell LED light trough, comprising:

[0008] A plastic shell, wherein the plastic shell is a frame-shaped structure and a receiving groove is provided inside the plastic shell;

[0009] A metal strip, the metal strip being fixed in the receiving groove;

[0010] An LED light source is fixed to the metal strip.

[0011] Preferably, the plastic shell includes a first component and a second component, and the first component and the second component are arranged in different colors;

[0012] The second component parts are provided with two, and the two second component parts are respectively fixed on two sides of the first component part, and the two second component parts and the first component part enclose the accommodating groove with one side open.

[0013] Preferably, a plurality of heat dissipation fins are fixed to one side of the metal strip.

[0014] Preferably, the surfaces of the two components are provided with card slots, the card slots are strip-shaped slots, and the two sides of the metal strip can be snapped into the card slots.

[0015] Preferably, the two second components are both provided with guiding inclined surfaces at the opening positions of the accommodating grooves, and the two guiding inclined surfaces are inclined toward a direction of approaching each other on the sides close to the first components.

[0016] Preferably, the side walls of the two second component parts are fixed with limiting strips, and when the metal strip is fixed in the accommodating groove, the limiting strip abuts against the metal strip.

[0017] Preferably, the first component comprises a first surface and a second surface which are arranged opposite to each other, and the first surface is located in the receiving groove;

[0018] The first surface and the second surface are both planes.

[0019] Preferably, the first component includes a first surface and a second surface that are arranged opposite to each other, the first surface is a plane, the second surface is an arched surface, and the top surface of the arched surface is arranged away from the first surface.

[0020] Preferably, the first component includes a first surface and a second surface that are arranged opposite to each other, the first surface is located in the receiving groove, the first surface is an arched surface, the top surface of the arched surface is arranged toward the receiving groove, and the second surface is a plane.

[0021] Preferably, the first component comprises a first surface and a second surface which are arranged opposite to each other, and the first surface is located in the receiving groove;

[0022] The first surface includes a first planar segment, a first inclined segment, and a first curved segment;

[0023] The second surface includes a second planar segment and a second inclined segment.

[0024] The beneficial effects of the present invention are as follows: in the prior art, a large-area aluminum profile shell is usually used to cover the LED light source, and a long strip-shaped light-transmitting cover is used for light transmission. Although the light groove formed has high structural strength and can dissipate heat stably, the cost is relatively high, and it is difficult to make a light-transmitting structure with an aluminum profile. The entire light groove can only emit light at the light-transmitting cover, and can only produce a monochrome light-emitting structure.

[0025] However, with the development of LED technology, the heat generated by LED lamp beads has been reduced, and there is no need for an overly large aluminum profile shell for heat dissipation. In this application, on the one hand, the material of the plastic shell can be thermoplastic thermal conductive PC plastic material, which has good rigidity and toughness, and is matched with sheet metal strips to meet the heat dissipation requirements of LED lamp beads and reduce costs. On the other hand, when manufacturing the plastic shell, a two-color extrusion mold can be used for extrusion molding, which is easier to form a multi-color structure, and different colors are presented on different sides of the plastic shell, so that when the LED light source is emitting light, the LED lamp trough forms a multi-color light-emitting structure, which is convenient for LED products to be designed with multi-color light distribution and adapt to more optical design schemes.

[0026] Other beneficial effects of the present invention will be explained in the specific implementation manner through the introduction of specific technical features and technical solutions. Through the introduction of these technical features and technical solutions, those skilled in the art should be able to understand the beneficial technical effects brought about by the technical features and technical solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of a lamp trough according to the background technology of the present invention.

[0028] Figure 2 It is a structural schematic diagram of a double-color plastic shell LED light trough of the present invention.

[0029] Figure 3 The figure is a schematic structural diagram of another embodiment of a dual-color plastic shell LED light trough of the present invention.

[0030] Figure 4 It is a structural schematic diagram of another embodiment of a two-color plastic shell LED light trough of the present invention.

[0031] Figure 5 The figure is a schematic structural diagram of another embodiment of a dual-color plastic shell LED light trough of the present invention.

[0032] Description of reference numerals:

[0033] 1. Plastic shell; 11. First component; 12. Second component; 121. Card slot; 122. Guide slope; 123. Limiting strip; 2. Metal strip; 21. Heat dissipation fin; 3. LED light source; 4. Accommodating slot; 5. First surface; 6. Second surface.

[0034] Description of the accompanying drawings in the prior art:

[0035] 7. Aluminum alloy shell; 71. PC material translucent cover; 72. Plug; 73. LED light source. DETAILED DESCRIPTION

[0036] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail. In order to avoid confusing the essence of the present invention, known methods, processes, procedures, and components are not described in detail.

[0037] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0038] Unless the context clearly requires otherwise, throughout the specification and claims, the words "include", "comprising" and similar words should be interpreted in an inclusive sense rather than an exclusive or exhaustive sense; that is, in the sense of "including but not limited to".

[0039] In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0040] Reference Figure 2-5 The present invention provides a two-color plastic shell LED light trough for indoor decorative lighting, which can be applied to shops, hotels, office buildings, showrooms, homes and other occasions. The two-color plastic shell LED light trough includes a plastic shell 1, a metal strip 2 and an LED light source 3. The plastic shell 1 is a large-area structure, the plastic shell 1 can be formed with the metal strip 2, the LED light source 3 can be placed between the plastic shell 1 and the metal strip 2, and the LED light source 3 can transmit light from the plastic shell 1 after emitting light.

[0041] The plastic shell 1 is a shell of a frame structure, and a receiving groove 4 is provided in the plastic shell 1 for stably placing the metal strip 2 and the LED light source 3. The LED light source 3 is fixed on the metal strip 2. When the LED light source 3 emits light, the metal strip 2 can dissipate heat for the LED light source 3, and the plastic shell 1 can transmit light. In the prior art, a large-area aluminum profile shell is usually used to cover the LED light source 3, and a long strip-shaped light-transmitting cover is used for light transmission. Although the light groove formed has high structural strength and can stably dissipate heat, the cost is high, and it is difficult to make a light-transmitting structure with an aluminum profile. The entire light groove can only emit light at the light-transmitting cover, and can only produce a monochrome light-emitting structure.

[0042] However, with the development of LED technology, the heat generation of LED lamp beads has been reduced, and there is no need for an overly large aluminum profile shell for heat dissipation. In the present application, on the one hand, the material of the plastic shell 1 can be thermoplastic thermal conductive PC plastic, which has good rigidity and toughness, and can meet the heat dissipation requirements of LED lamp beads when matched with the sheet metal strip 2, which can reduce costs. On the other hand, when manufacturing the plastic shell 1, a two-color extrusion mold can be used for extrusion molding, which can easily form a multi-color structure, and different colors are presented on different sides of the plastic shell 1, so that when the LED light source 3 is lit, the LED lamp trough forms a multi-color light-emitting structure, which is convenient for LED products to be designed with multi-color light distribution and adapt to more optical design schemes.

[0043] As an embodiment, the metal strip 2 can be made of aluminum alloy material, which has good thermal conductivity and heat dissipation. The material of the two-color plastic shell is thermoplastic thermal conductive PC plastic, which is a plastic composite material made by adding thermally conductive metal oxides to polycarbonate material and adding graphite or carbon fiber, etc. It has good thermal conductivity and heat dissipation, excellent light transmittance and refractive index, high stability and long service life. It should be noted that the metal strip 2 can also be made of heat dissipation metal plates of other materials as long as it can meet the heat dissipation requirements.

[0044] The plastic housing 1 includes a first component 11 and a second component 12. The first component 11 and the second component 12 are an integral structure. The first component 11 and the second component 12 are both strip-shaped. The first component 11 and the second component 12 can be different color structures. There are two second components 12. The two second components 12 are respectively fixed on both sides of the first component 11. The two second components 12 and the first component 11 are arranged vertically. The two second components 12 and the second component 12 enclose a receiving groove 4 with an opening. The receiving groove 4 is a directional groove. The metal strip 2 can be fixed in the receiving groove 4, and the LED light source 3 can be fixed in the receiving groove 4. The light emitting direction of the LED light source 3 is toward the plastic housing 1. It should be noted that the structure of the first component 11 and the second component 12 is not limited to a strip shape, and can be changed according to different application scenarios and shapes of the linear light trough; and the second component 12 and the first component 11 are not necessarily arranged vertically. It is just that the vertical arrangement of the first component 11 and the second component 12 can have better structural strength.

[0045] The first component 11 of the plastic shell 1 can have various shapes. As an embodiment, the first component 11 includes a first surface 5 and a second surface 6 that are arranged opposite to each other. The first surface 5 is located in the receiving groove 4. The first surface 5 and the second surface 6 are both planes. The inner side surface of the second component 12 is made of white material to increase the reflectivity of light and improve the light divergence efficiency of the LED light source 3.

[0046] As another embodiment, the first surface 5A is a plane, the second surface 6A is an arched surface, and the mirror surface of the arched surface is arranged away from the first surface 5A, so that the first component 11 is an outwardly protruding lens, so that the first component 11 can inject the light emitted by the LED light source 3 from the first surface 5A and propagate it at a large angle from the second surface 6A, which is suitable for the wide-angle light distribution design of the LED light trough, and is suitable for large-range lighting, uniform lighting and decorative lighting.

[0047] As another embodiment, the first surface 5B is an arched surface, the top surface of the first surface 5B is arranged toward the accommodating groove 4, and the second surface 6B is a plane, so that the first component 11 is an inwardly convex lens, so that the first component 11 can inject the light emitted by the LED light source 3 from the first surface 5B arranged with the inward arch, and propagate from the second surface 6B at a small angle, which is suitable for the narrow-angle light distribution design of the LED light groove and suitable for precision lighting occasions.

[0048] As another embodiment, the first surface 5C includes a first plane segment 5C', a first inclined segment 5C", and a first curved segment 5C'"; the second surface 6C includes a second plane segment 6C' and a second inclined segment 6C". By cooperating with the first surface 5C and the second surface 6C of different shapes, the light can be polarized at the angle required by the user, which is suitable for more light distribution designs. It should be noted that the connection order of the first plane segment, the first inclined segment and the first curve, and the second plane segment and the second inclined segment is not limited, and can be changed according to specific light distribution requirements and the shape of ambient light.

[0049] The light trough in the prior art is a structure covered by a large range of aluminum profiles, and the structure of the lens is usually relatively simple. The shape of the lens changes, making it difficult to install and fix it with the aluminum profile. The side structure of the aluminum profile needs to be changed to adapt to different lens shapes, and the applicability is poor. In the present application, the plastic shell 1 made of PC material can flexibly change the shape of the first surface 5 and the second surface 6 by changing the plastic extrusion mold, so that the LED light trough can adapt to wide-angle, narrow-angle or polarized light distribution design, and can achieve the purpose of high applicability at a lower cost.

[0050] The side surfaces of the two second components 12 are provided with a slot 121, which is a strip-shaped slot, and the two sides of the metal strip 2 can be snapped into the slot 121. Furthermore, the two second components 12 are provided with a guide slope 122 at the opening position of the receiving groove 4, and the two guide slopes 122 are inclined toward the direction of approaching each other on the side close to the first component 11. During installation, the LED light source 3 can be fixed on the metal strip 2, and the metal strip 2 is pushed into the receiving groove 4 along the slope. The metal strip 2 is snapped into the slot 121 and can be fixed in the receiving groove 4 of the plastic housing 1.

[0051] As an embodiment, the side walls of the two second components 12 are fixed with limit strips 123, and the metal strip 2 is clamped in the clamping groove 121. The metal strip 2 can abut against the limit strip 123, and the limit strip 123 can limit the metal strip 2. When installing the metal strip 2, the metal strip 2 is pushed into the receiving groove 4 by relying on the elasticity of the plastic shell 1. The limit strip 123 can avoid the excessive deformation of the plastic shell 1, which causes the metal strip 2 to be installed in an inaccurate position, thereby increasing the installation speed and reducing the assembly cost. It should be noted that plugs are usually provided at both ends of the lamp trough to close the receiving groove 4. This is a prior art and will not be described in detail in this application.

[0052] As an embodiment, a plurality of heat dissipation fins 21 are fixed on one side of the metal strip 2, and the heat dissipation fins 21 are also located in the receiving groove 4. The heat dissipation fins 21 can increase the heat dissipation area of ​​the metal strip 2 and improve the heat dissipation effect. It should be noted that the metal strip 2 can also be an aluminum alloy flat plate, but the provision of the heat dissipation fins 21 can improve the heat dissipation effect at a relatively low cost, thereby ensuring the stable operation of the LED light trough.

[0053] Furthermore, the LED light source 3 is attached to the metal strip 2 using a heat-conductive double-sided adhesive, thereby improving the heat conduction efficiency between the metal strip 2 and the LED light source 3 .

[0054] The implementation principle of the present invention is as follows: in the prior art, a large-area aluminum profile shell is usually used to cover the LED light source 3, and a long strip of transparent cover is used for light transmission. Although the formed light groove has high structural strength and can dissipate heat stably, the cost is relatively high, and it is difficult to make a transparent structure with aluminum profiles. The entire light groove can only emit light at the transparent cover, and can only produce a monochrome light-emitting structure.

[0055] However, with the development of LED technology, the heat generated by LED lamp beads has been reduced, and there is no need for an overly large aluminum profile shell for heat dissipation. In this application, on the one hand, the material of the plastic shell 1 can be thermoplastic thermal conductive PC plastic, which has good rigidity and toughness. When matched with the sheet metal strip 2, it can meet the heat dissipation requirements of the LED lamp beads and can replace aluminum alloy to reduce costs. On the other hand, when manufacturing the plastic shell 1, a two-color extrusion mold can be used for extrusion molding, which is easier to form a multi-color structure, and different colors are presented on different sides of the plastic shell 1, so that when the LED light source 3 is lit, the LED lamp trough forms a multi-color light-emitting structure, which is convenient for LED products to be designed with multi-color light distribution and adapt to more optical design schemes.

[0056] Those skilled in the art will appreciate that, without conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0057] It should be understood that the above-mentioned embodiments are merely illustrative and not restrictive. Without departing from the basic principles of the present invention, various obvious or equivalent modifications or substitutions that can be made by those skilled in the art to the above-mentioned details will all be included in the scope of the claims of the present invention.

Claims

1. A two-color plastic shell LED light trough, characterized in that: include: A plastic shell, wherein the plastic shell is a frame-shaped structure and a receiving groove is provided inside the plastic shell; A metal strip, the metal strip being fixed in the receiving groove; An LED light source is fixed to the metal strip.

2. A two-color plastic shell LED light trough as claimed in claim 1, characterized in that: The plastic shell comprises a first component and a second component, wherein the first component and the second component are arranged in different colors; The second component parts are provided with two, and the two second component parts are respectively fixed on two sides of the first component part, and the two second component parts and the first component part enclose the accommodating groove with one side open.

3. A two-color plastic shell LED light trough as claimed in claim 1, characterized in that: A plurality of heat dissipation fins are fixed on one side of the metal strip.

4. A two-color plastic shell LED light trough as claimed in claim 2, characterized in that: The surfaces of the two second components are both provided with card slots, the card slots are strip-shaped slots, and the two sides of the metal strip can be carded in the card slots.

5. A two-color plastic shell LED light trough as claimed in claim 4, characterized in that: The two second components are both provided with guiding inclined surfaces at the opening positions of the accommodating grooves, and the two guiding inclined surfaces are inclined toward a direction of approaching each other on the sides close to the first components.

6. A two-color plastic shell LED light trough as claimed in claim 4, characterized in that: The side walls of the two second component parts are fixed with limiting strips, and when the metal strip is fixed in the containing groove, the limiting strip abuts against the metal strip.

7. A two-color plastic shell LED light trough as claimed in claim 2, characterized in that: The first component comprises a first surface and a second surface which are arranged opposite to each other, and the first surface is located in the receiving groove; The first surface and the second surface are both planes.

8. A two-color plastic shell LED light trough as claimed in claim 2, characterized in that: The first component part includes a first surface and a second surface which are arranged opposite to each other, the first surface is a plane, the second surface is an arched surface, and the top surface of the arched surface is arranged away from the first surface.

9. A two-color plastic shell LED light trough as claimed in claim 2, characterized in that: The first component includes a first surface and a second surface that are arranged opposite to each other. The first surface is located in the receiving groove. The first surface is an arched surface, and the top surface of the arched surface is arranged toward the receiving groove. The second surface is a plane.

10. A two-color plastic housing LED light trough as claimed in claim 2, characterized in that: The first component comprises a first surface and a second surface which are arranged opposite to each other, and the first surface is located in the receiving groove; The first surface includes a first planar segment, a first inclined segment, and a first curved segment; The second surface includes a second planar segment and a second inclined segment.

11. The double-color plastic housing LED light trough according to claim 1, characterized in that: The plastic shell is an extruded integrally formed structure.

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