Electric-thermal separated double-color support

Abstract

The utility model discloses a double-color support with separated electricity and heat. The double-color support comprises a base plate and an installation shell installed on the base plate. At least two light emitting grooves are formed in the upper portion of the mounting shell in a hollowed-out mode. A heat dissipation bonding pad is installed in the center of the substrate, and a first positive bonding pad, a second positive bonding pad, a first negative bonding pad and a second negative bonding pad are installed on the two sides of the substrate respectively. And at least two groups of LED light-emitting modules avoiding the shielding of the mounting shell are mounted on the heat dissipation bonding pad. The beneficial effects of the utility model lie in that the plurality of mutually isolated small pads are designed, and the LED chip is communicated with the circuit through the lead, thereby effectively isolating the circuit module and the heat dissipation module, preventing the LED chip from being damaged due to overheating, and prolonging the service life of the LED chip. And meanwhile, the problem that the electrical performance is reduced due to too high heat is solved, and the stability and the safety of an internal circuit are improved.

Description

Technical Field

[0001] The utility model relates to the field of lighting brackets, in particular to a two-color bracket with electric and thermal separation. Background Art

[0002] Electroplated copper foil is an indispensable material in circuit board manufacturing. Due to its excellent electrical and thermal conductivity, it is widely used to make the conductive layer of PCB.

[0003] In the field of LED lighting, LED chips are usually placed on electroplated copper foil, and conduction and heat dissipation are achieved simultaneously on the same copper foil (heat sink). However, this layout has the following disadvantages: 1. The heat generated by the LED chip during operation will increase the temperature of the copper foil, resulting in an increase in the resistance of the copper foil, which in turn affects the stability of the copper current transmission and reduces the conductivity of the copper foil; 2. The heat source is concentrated, which can easily cause local overheating and damage components. When the current in the circuit flows through the copper foil, the copper foil itself has a certain internal resistance. According to Joule's law (P=I 2 R), its internal resistance will cause a certain amount of power loss, which is converted into heat; at the same time, the LED chip will generate a lot of heat when working, and the layout of the LED chips is very concentrated, which leads to the heat source being concentrated on the same copper foil and unable to be effectively dispersed, thereby causing the components on the copper foil to overheat and be damaged. Utility Model Content

[0004] (1) Problems to be solved

[0005] The technical problem to be solved by the utility model is to provide a two-color bracket with electric and thermal separation in view of the current status of the existing technology.

[0006] (2) Technical solution

[0007] The utility model is implemented through the following technical solution: a two-color bracket with electrical and thermal separation, comprising a base plate and a mounting shell mounted on the base plate. The mounting shell has at least two light-emitting slots formed in a hollowed-out pattern above the base plate. A heat sink is mounted in the center of the base plate, with a positive electrode pad 1, a positive electrode pad 2, a negative electrode pad 1, and a negative electrode pad 2 mounted on either side. At least two LED light-emitting modules are mounted on the heat sink, shielded from the mounting shell.

[0008] By adopting the above technical solution, when power is turned on, power flows through the LED light-emitting module, the LED light-emitting chip is excited, and the electrons and holes in the chip recombine, releasing energy and generating light. In the circuit, the LED light-emitting module is connected to the positive electrode pad 1, positive electrode pad 2, negative electrode pad 1, and negative electrode pad 2 wires distributed on both sides, separating the heat sink and the conductive path, effectively improving the heat dissipation efficiency and current stability. In the bracket, two groups of LED light-emitting modules with different colors of light are designed, and a single group of LED light-emitting modules can be independently controlled. The light released by the LED light-emitting chip is concentrated through a light outlet slot with a certain opening angle and forms a light source in the shape of a light outlet slot.

[0009] Furthermore, in the first LED light-emitting module, the positive electrode interface terminal of the head-end LED light-emitting chip is connected to the positive electrode pad and the first wire, and the negative electrode interface terminal of the tail-end LED light-emitting chip is connected to the negative electrode pad and the first wire. In the second LED light-emitting module, the positive electrode interface terminal of the head-end LED light-emitting chip is connected to the positive electrode pad and the second wire, and the negative electrode interface terminal of the tail-end LED light-emitting chip is connected to the negative electrode pad and the second wire.

[0010] Furthermore, the first LED light-emitting module and the second LED light-emitting module include a plurality of LED chip light strips arranged in series and transversely connected.

[0011] Furthermore, the mounting shell is provided with a positive electrode identification opening corresponding to a position of the positive electrode pad below.

[0012] Furthermore, the cross section of the light outlet groove is a gradually opening, and the vertical outlet angle of the light outlet groove is 36 degrees.

[0013] Furthermore, the positive electrode pad 1, the positive electrode pad 2, the negative electrode pad 1, and the negative electrode pad 2 are made of electroplated copper foil.

[0014] Furthermore, the mounting shell is made of plastic.

[0015] Furthermore, the shape of the light exit groove is set to be one of rectangle, square, circle, ellipse or a combination of multiple thereof.

[0016] (3) Beneficial effects

[0017] 1. The present invention has a layout with multiple isolated small pads, and the LED chip is connected to the circuit through wires, effectively isolating the two major modules of circuit and heat dissipation. In this better layout scheme, the heat generated by the LED chip is transferred away by the heat dissipation pad at the bottom, avoiding the heat generated by current transmission and the heat generated by the operation of the LED chip to be concentrated in the LED chip area at the same time, causing overheating and damage to the LED chip; similarly, this layout scheme is also conducive to alleviating the phenomenon of high temperature accelerating the aging of electronic components and extending the service life of the LED chip. Two groups of LED light-emitting modules that emit light of different colors are designed. A single group of LED light-emitting modules can be separately controlled in the circuit design, and different colors of light can be easily switched for lighting and rendering the environment atmosphere.

[0018] 2. The present invention solves the problem of electrical performance degradation caused by excessive heat by separating electrical functions from heat management, and improves the stability and safety of the internal circuit of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] Figure 1 This is a top view of a two-color bracket with electric and thermal separation described in the utility model;

[0021] Figure 2 This is a rear view of the electric and thermal separation dual-color bracket described in the utility model;

[0022] Figure 3 This is a structural diagram of a substrate in a two-color bracket with electric and thermal separation described in the utility model;

[0023] Figure 4 This is a schematic diagram of the layout of the solder pads in a two-color bracket with electric and thermal separation according to the present invention; the accompanying drawings are as follows:

[0024] 1. Substrate; 2. Mounting shell; 3. Light output slot; 4. Heat dissipation pad; 5. Positive electrode pad 1; 6. Positive electrode pad 2; 7. Negative electrode pad 1; 8. Negative electrode pad 2; 9. First LED light-emitting module; 10. Second LED light-emitting module; 11. Head-end LED light-emitting chip; 12. Tail-end LED light-emitting chip; 13. Positive electrode interface terminal; 14. Negative electrode interface terminal; 15. LED chip light strip; 16. Positive electrode identification port; 17. Heat dissipation pad mounting position; 18. Positive electrode pad 1 mounting position; 19. Positive electrode pad 2 mounting position; 20. Negative electrode pad 1 mounting position; 21. Negative electrode pad 2 mounting position. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0026] In the description of this application, it should be understood that the terms "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 on this application.

[0027] See also Figures 1-4 The utility model provides a technical solution: a two-color bracket with electric and thermal separation, comprising a substrate 1 and a mounting shell 2 mounted on the substrate 1. At least two light outlet slots 3 are hollowed out above the mounting shell 2. A heat dissipation pad 4 is mounted in the center of the substrate 1, and a positive electrode pad 1 5, a positive electrode pad 2 6, a negative electrode pad 1 7, and a negative electrode pad 2 8 are mounted on both sides. At least two groups of LED light-emitting modules are mounted on the heat dissipation pad 4 to avoid being blocked by the mounting shell 2. By adopting the above technical solution, after power is turned on, power flows through the LED light-emitting module, the LED light-emitting chip is excited, and the electrons and holes in the chip recombine, releasing energy and generating light; in the circuit, the LED light-emitting module is connected to the positive electrode pad 1 5, the positive electrode pad 2 6, the negative electrode pad 1 7, and the negative electrode pad 2 8 distributed on both sides with wires, separating the heat dissipation plate from the conductive path, effectively improving the heat dissipation efficiency and the stability of the current. In the bracket, two groups of LED light-emitting modules with different colors of light are designed, and a single group of LED light-emitting modules can be independently controlled. The light released by the LED light emitting chip is gathered through the light emitting groove 3 with a certain opening angle and forms a light source in the shape of the light emitting groove 3 outwards.

[0028] Preferably, in the first LED light-emitting module 9, the positive interface terminal 13 of the head-end LED light-emitting chip 11 is connected to the positive electrode solder pad 1-5 wire, and the negative interface terminal 14 of the tail-end LED light-emitting chip 12 is connected to the negative electrode solder pad 1-7 wire. In the second LED light-emitting module 10, the positive interface terminal 13 of the head-end LED light-emitting chip 11 is connected to the positive electrode solder pad 2-6 wire, and the negative interface terminal 14 of the tail-end LED light-emitting chip 12 is connected to the negative electrode solder pad 2-8 wire. By arranging more LED light-emitting modules on the heat dissipation pad 4, connecting them to the upper positive electrode solder pad 1-5 and negative electrode solder pad 1-7 or the lower positive electrode solder pad 2-6 and negative electrode solder pad 2-8; at the same time, by correspondingly opening other light output slots 3, a more diverse light source effect can be expanded.

[0029] Preferably, the first LED light emitting module 9 and the second LED light emitting module 10 include a plurality of transversely arranged series-connected LED chip light strips 15. Such an arrangement and addition method can effectively increase the lighting brightness and lighting range of the bracket while maintaining uniform light output.

[0030] Preferably, the mounting shell 2 is provided with a positive electrode identification port 16 corresponding to the position of the positive electrode pad 5 below. The setting of the positive electrode identification port 16 can help the user correctly connect the positive and negative poles of the LED lamp bead to avoid damage to the lamp bead caused by wrong connection of the wires.

[0031] Preferably, the cross section of the light outlet groove 3 is a gradually opening opening, and the vertical outlet angle of the light outlet groove 3 is 36 degrees. The design of the 36-degree outlet angle can gather the light and help the lamp holder to evenly distribute the light in a wider illumination range.

[0032] Preferably, positive electrode pad 1 5, positive electrode pad 2 6, negative electrode pad 1 7, and negative electrode pad 2 8 are made of electroplated copper foil. Heat dissipation pad 4 is mounted on heat dissipation pad mounting position 17; positive electrode pad 1 5 is mounted on positive electrode pad 1 mounting position 18; positive electrode pad 2 6 is mounted on positive electrode pad 2 mounting position 19; negative electrode pad 1 7 is mounted on negative electrode pad 1 mounting position 20; and negative electrode pad 2 8 is mounted on negative electrode pad 2 mounting position 21. Electroplated copper foil has excellent thermal and electrical conductivity, is low cost, and is lightweight. Using it as a conductive path for the bracket contributes to lighter brackets, improved heat dissipation, and reduced costs.

[0033] Preferably, the mounting shell 2 is made of plastic. Plastic has low cost and good insulation properties, and using plastic to make the shell can reduce the cost of a single bracket.

[0034] Preferably, the shape of the light outlet slot 3 is set to be one of rectangle, square, circle, ellipse or a combination of multiple thereof. Designing light outlet slots 3 of different shapes can customize the lamp holder for different lighting occasions.

[0035] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A two-color bracket with electric and thermal separation, characterized in that: It includes a substrate and a mounting shell installed on the substrate; at least two light outlet slots are hollowed out above the mounting shell; a heat dissipation pad is installed in the center of the substrate, and positive electrode pad 1, positive electrode pad 2, negative electrode pad 1, and negative electrode pad 2 are distributed on both sides; at least two groups of LED light-emitting modules are installed on the heat dissipation pad to avoid being blocked by the mounting shell.

2. The electrically and thermally separated dual-color bracket according to claim 1, characterized in that: In the first LED light-emitting module, the positive interface end of the head-end LED light-emitting chip is connected to a wire on the positive electrode pad, and the negative interface end of the tail-end LED light-emitting chip is connected to a wire on the negative electrode pad; in the second LED light-emitting module, the positive interface end of the head-end LED light-emitting chip is connected to two wires on the positive electrode pad, and the negative interface end of the tail-end LED light-emitting chip is connected to two wires on the negative electrode pad.

3. The electrically and thermally separated dual-color bracket according to claim 2, characterized in that: The first LED light-emitting module and the second LED light-emitting module include a plurality of LED chip light strips arranged in series in a transverse manner.

4. The electrically and thermally separated dual-color bracket according to claim 1, characterized in that: The mounting shell is provided with a positive electrode identification opening corresponding to a position of the positive electrode welding pad below.

5. The electrically and thermally separated dual-color bracket according to claim 1, characterized in that: The cross section of the light exit groove is a gradually opening type, and the vertical exit angle of the light exit groove is 36 degrees.

6. The electrically and thermally separated dual-color bracket according to claim 1, characterized in that: The positive electrode pad 1, the positive electrode pad 2, the negative electrode pad 1, and the negative electrode pad 2 are made of electroplated copper foil.

7. The electrically and thermally separated dual-color bracket according to claim 1, characterized in that: The mounting shell is made of plastic.

8. The electrically and thermally separated dual-color bracket according to claim 1, characterized in that: The shape of the light exit groove is set to be one of rectangle, square, circle, ellipse or a combination of multiple thereof.

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