CN201129679Y - LED lamp panel structure with patch type support - Google Patents

Abstract

The utility model relates to a Light Emitting Diode (LED) technical field, promptly: the utility model discloses a LED lamp plate structure with SMD support is the positive negative pole binding post as the LED lamp with two metal sheets of not electric connection each other, and it has or not the bowl cup form recess of perforating hole to have made between two parties on one of them polar plate, and the LED wafer sets up at the middle part of recess, and the positive negative pole of LED wafer is connected with the binding post electricity of metal sheet respectively, is provided with the translucent cover in the outside of LED wafer, sets up or does not set up the one deck phosphor powder between LED wafer and translucent cover, welds the free LED wafer part of LED lamp on the positive negative pole metal level of the PCB circuit of base plate, the utility model discloses a radiating effect is good, luminous flux is big, long service life, low in production cost, and the uniformity of colour temperature is good, can be used to make luminous lamps and lanterns, light source module, LCD liquid.

Description

LED light board structure with patch bracket

Technical field:

The utility model relates to the technical field of light-emitting diodes (LEDs), in particular to an LED lamp board structure with patch brackets.

Background technique:

Light-emitting diode (LED) is a semiconductor solid light-emitting device. It uses a solid semiconductor wafer as a light-emitting material. When a forward voltage is applied to both ends, the carriers in the semiconductor recombine to cause photon emission to generate light. It is the most The popular light source technology, the characteristics of LED light source are: energy saving: energy consumption is reduced by 80% compared with incandescent lamps with the same light effect; using low voltage power supply (between 6-24V), good safety; small size, can be prepared into various Shaped devices; long life; fast response time: the response time of incandescent lamps is milliseconds, and that of LED lamps is nanoseconds; no harmful metal mercury pollutes the environment, etc. With the development and application of high-power LED lamps, LED lights have developed from point light sources to functional lighting, and the development prospects are extremely broad.

Referring to Fig. 1, the current light-emitting diode or LED lamp is composed of a two-legged support 1 (or positive and negative pins) and a chip 2 in a bowl on the support 1, covering the fluorescent powder on the chip 2. 4 and the epoxy resin 5 that encapsulates the chip 2, the chip 2 is connected to the support 1 through its positive and negative lead wires 3 respectively, its disadvantages: one is that the support 1 is a wire support, and its thermal conductivity is poor, and the light and heat emitted by the chip 2 make Phosphor powder 4 accelerates aging, which leads to poor color temperature stability of white light diodes and reduced product life; second, mechanized production cannot be realized. General LED light panels are composed of multiple LED light monomers. When producing LED light panels, It is necessary to manually insert the positive and negative pins 1 (two or four) of the LED lamp unit into the socket of the circuit board, and then manually solder. Such a production method will easily lead to unstable product quality and low yield. , the production efficiency is low, and the production cost is high; the third is that a gold-plated layer is provided at the connection of the positive and negative poles on the bracket 1 for good welding quality and heat conduction, but the cooling effect of the bracket 1 is limited due to the limited heat dissipation area. Gold plating further increases production costs.

Invention content:

The purpose of the utility model is to provide an LED lamp panel structure with a chip-type bracket that has good heat dissipation, stable product quality, low production cost and can be mechanized.

The utility model is realized in the following way: the structure of the LED lamp board with a patch type bracket is characterized in that two metal plates that are not electrically connected to each other are used as the positive and negative terminals of the LED lamp, and are arranged in the same plane. There is a cup-shaped groove in the center of a plate, and the bottom of the groove may have a through hole or no through hole. The LED chip is set in the middle of the groove, and the positive and negative poles of the LED chip are electrically connected to the terminals of the metal plate. A solid or hollow transparent cover is arranged on the outside of the LED chip, a layer of phosphor powder may or may not be provided between the LED chip and the transparent cover, and the LED chip part of the LED lamp is arranged in the through hole on the substrate. After centering, electrically connect the positive and negative terminals of the LED lamp to the positive and negative metal layers of the PCB circuit on the substrate.

The vicinity of the groove on the above-mentioned metal plate punched with a cup-shaped groove and the part of another metal plate close to the groove are set upward as a boss, and the positive and negative poles of the LED chip are connected to the boss.

The above-mentioned two-piece metal plate terminal can be extended to the outside to form a positive and negative single terminal, or each terminal of the two metal plate terminals can be extended to both sides to form a positive double terminal and a negative double terminal. .

The metal plate above is made of copper or other metal materials with good heat dissipation, and the substrate is made of metal or common PVC material.

Above-mentioned transparent cover is made of one of transparent plastics, epoxy resin, silica gel, glass, pottery material.

There is at least one LED chip arranged in the middle of each groove, there are at least two through holes on the substrate, and LED lamps are arranged on the front or both sides of each through hole of the substrate to form LED light board.

When there is a through-hole at the bottom of the above-mentioned bowl-cup-shaped groove, both sides of the through-hole are provided with a bowl-cup-shaped groove.

The utility model can be used for making light-emitting lamps, light source modules, and backlight sources for LCD liquid crystal displays.

Compared with the prior art, the outstanding advantages of the utility model are:

1. The utility model uses two metal plates as the positive and negative terminals 20 and 30 of the LED. Due to the large welding area of the metal plates, the heat of the LED chip can be quickly introduced into the PCB circuit board for heat dissipation, which belongs to direct heat dissipation, and the heat dissipation effect is excellent , can greatly reduce the heat of the chip and increase the luminous flux and service life of the LED lamp.

2. The SMD LED bracket of the present invention can be welded on a double-sided circuit PCB to make it emit light on both sides of the substrate, and can also be welded on a single-sided circuit PCB to make it emit light on one side of the substrate.

3. Punch the bottom surface of the cup-shaped groove on the bracket to make a cup with a through hole. After packaging the LED chip in the center of the cup and soldering it to the PCB with a through hole, it can also be used in the Both sides of the substrate emit light.

4. Before soldering the LED lamp unit to the PCB circuit board, a spectrometer can be used to split the light, and the LED lamp unit that is close to the same light wave or the same color is welded on the PCB circuit as needed, so that the color temperature of the LED lamp board is consistent. Good sex.

5. The LED light unit made of patch bracket can be used to make LED light boards with automatic plug-in machine and automatic welding machine, which can realize the automation and mass production of LED light boards, and the product quality is excellent and stable.

6. The utility model can be used as a new generation of LED light source in various lighting fixtures, and can also be made into various light source modules and backlight sources for LCD liquid crystal displays.

Description of drawings:

Fig. 1 is a structural sectional view of the prior art;

Fig. 2 is a perspective view of the front of the bracket structure when the metal plate terminals extend outwards respectively into positive and negative single terminal bowl cup-shaped grooves with no through holes in the bottom of the utility model embodiment 1;

Fig. 3 is the rear perspective view of the utility model embodiment 1;

Fig. 4 is the front view of the utility model embodiment 1;

Fig. 5 is the A-A direction sectional view of Fig. 4;

Fig. 6 is a perspective view of the front of the bracket structure when the metal plate terminals extend to both sides to form a positive double terminal and a negative double terminal respectively, and there is no through hole at the bottom of the cup-shaped groove in the second embodiment of the utility model;

Fig. 7 is the rear perspective view of the utility model embodiment 2;

Fig. 8 is the front view of the utility model embodiment 2;

Fig. 9 is a sectional view along A-A direction of Fig. 8;

Fig. 10 is a perspective view of the front of the bracket structure when the metal plate terminals extend to the outside to form positive and negative single terminals respectively, and there is a through hole at the bottom of the cup-shaped groove in Embodiment 3 of the utility model;

Fig. 11 is the rear perspective view of the utility model embodiment 3;

Fig. 12 is the front view of the utility model embodiment 3;

Fig. 13 is a sectional view along A-A of Fig. 12;

Fig. 14 is a sectional view of Embodiment 3 of the present utility model;

Fig. 15 is one of the three-dimensional schematic diagrams of the finished product of Embodiment 1 of the present utility model;

Fig. 16 is the second three-dimensional schematic diagram of the finished product of Embodiment 1 of the present utility model;

Fig. 17 is one of the three-dimensional schematic diagrams of the finished product of Embodiment 2 of the present utility model;

Fig. 18 is the second three-dimensional schematic diagram of the finished product of Embodiment 2 of the utility model;

Fig. 19 is a schematic diagram of the technical process of the present utility model;

Fig. 20 is the front view of the support in the production process of the present utility model;

Fig. 21 is the right side view of the bracket in the production process of the present utility model;

Fig. 22 is the bottom view of the support in the production process of the present utility model;

Fig. 23 is the front view of the template in the production process of the present utility model;

Fig. 24 is the right side view of template in the production process of the present utility model;

Fig. 25 is the bottom view of the template in the production process of the present utility model;

Fig. 26 is a three-dimensional schematic diagram of a backlight panel made by the utility model;

Fig. 27 is a three-dimensional schematic diagram of a single-sided light-emitting LED lamp panel produced by the utility model;

Fig. 28 is a three-dimensional schematic diagram of a double-sided light-emitting LED lamp panel produced by the present invention.

Detailed ways:

The utility model is described further below with specific embodiment:

Embodiment 1: Refer to Fig. 2-5, Fig. 15-16: LED lamp board structure with patch bracket, which is characterized in that two metal plates that are not electrically connected to each other are used as the positive and negative terminals 20 of the LED lamp, 30, arranged in the same plane, a cup-shaped groove 101 is centrally arranged on one of the pole plates 20, the LED chip 50 is arranged in the middle of the groove 101, and the positive and negative poles 51 of the LED chip 50 are respectively connected to the metal plate The terminals 20 and 30 are electrically connected, and a solid or hollow transparent cover 40 is provided on the outside of the LED chip 50. A layer of phosphor powder may or may not be provided between the LED chip 50 and the transparent cover 40. The LED of the LED lamp After the chip 50 is partially arranged in the center of the through hole 61 on the substrate 60, the positive and negative terminals 20, 30 of the LED lamp are electrically connected to the positive and negative metal layers of the PCB circuit of the substrate 60, and the LED chip 50 and the transparent cover When one deck of fluorescent powder is arranged between 40, then can become the LED lamp that emits white light, when LED chip 50 and transparent cover 40 are not provided with one deck of fluorescent powder, then the size of visible electric current becomes the LED lamp of different colors.

The vicinity of the groove 101 on the metal plate 20 punched with the cup-shaped groove 101 and the part of another metal plate 30 close to the groove 101 are set upward as a boss, and the positive and negative poles 51 of the LED chip 50 are connected to each other. on the boss.

The above-mentioned two pieces of metal plate connecting terminals 20, 30 can be respectively extended to the outside to form positive and negative single connecting terminals 20, 30, so that large, medium and small power LED lamps can be produced.

The above-mentioned metal plates 20, 30 are made of copper, which has good electrical conductivity and heat dissipation effect. Of course, they can also be made of other metal materials with good heat dissipation. The above-mentioned substrate 60 is made of aluminum. The price of aluminum material is cheap, of course, also can make with other metal material or common PVC material.

The above-mentioned transparent cover 40 is made of one of transparent plastics, epoxy resin, silica gel, glass and ceramic materials.

There is at least one LED chip 50 arranged in the middle of each groove 101, and there are at least two through holes 61 on the substrate 60, and the front or front and back sides of each through hole 61 of the substrate 60 There are LED lights on it to form a single-sided or double-sided LED light board.

The purpose of the LED light board with patch bracket can be used to make light-emitting lamps (for example: Figure 27 is a three-dimensional schematic diagram of an LED light board that emits light on one side, and Figure 28 is a three-dimensional schematic diagram of an LED light board that emits light on both sides), the light source module, LED LCD backlight (see Figure 26).

Embodiment 2: Refer to Fig. 6-9, Fig. 17-18: the basic structure, production process and product use of this embodiment are the same as those of Embodiment 1, the difference is that each of the two metal plate terminals is connected 20 , 30 respectively extend to both sides to form positive dual terminal 20 and negative dual terminal 30. This structure is suitable for manufacturing medium-power or high-power LED lamps or lamp panels, because the positive dual terminal 20 and the negative dual terminal 30 are in contact with the substrate. After 60 soldering, it is convenient to quickly dissipate the heat generated by the LED chip 50 in a larger amount, so as to maintain a stable and long-term working state of the product.

Embodiment 3: See Figures 10-14 and Figures 19-25: the basic structure, production process and product usage of this embodiment are the same as those of Embodiment 1, the difference is that a hole is punched at the bottom of the cup-shaped groove 101 Through hole 102, and both sides of through hole 102 are all set as bowl cup shape groove, like this, after LED chip 50 is packaged on the bowl cup shape groove 101 that has through hole 102, LED chip 50 is in groove 101 Both sides of the LED lamp can emit light, and can be made into a double-sided LED lamp 70 and an LED lamp board 80. This structure is a double-sided LED lamp 70 or LED lamp board 80 with large, medium and small power.

Extend each piece of terminal 20, 30 of the two metal plate terminals in Embodiment 3 to form a positive dual terminal 20 and a negative dual terminal 30 respectively, then a medium-power or high-power LED lamp can be manufactured. 70 or LED light board 80.

The production process of the present utility model: referring to Fig. 19-25:, includes the following steps:

1. Fix the LED chip 50 on the cup-shaped groove 101 of the stamped bracket, and weld the positive and negative electrodes 51 of the LED chip 50 to the bosses of the two metal plates 20 and 30 respectively;

2. Dot phosphor powder on one side or both sides of the LED chip 50, and set the bracket with the LED chip 50 (see Figure 20-22) produced in the first step on the special mold strip (see Figure 23-25) On, pouring transparent glue to form a single-sided or double-sided transparent cover 40;

3. Use a spectrometer to split the light of the LED lamp monomers 70 (see Figures 15-18) produced in the second step, and place them together according to the LED lamp monomers 70 that are close to the same light wave or the same color;

4. Use the SMT automatic plug-in machine to automatically weld the positive and negative poles 20 and 30 of the LED lamp monomer 70 (designed wavelength or color) sorted out in the third step on the positive and negative metal layers of the PCB circuit of the substrate 60, An LED light board 80 is formed.

Claims (6)

1, LED lamp panel structure with patch type bracket, it is characterized in that the both positive and negative polarity binding post of two metallic plates that are not electrically connected mutually as the LED lamp, be arranged in the same plane, be provided with a bowl cup-shaped groove therein on a slice pole plate between two parties, can there be a through hole bottom of groove or have through hole, the LED wafer is arranged on the middle part of groove, the both positive and negative polarity of LED wafer is electrically connected with the binding post of metallic plate respectively, the translucent cover of or hollow solid at arranged outside one deck of LED wafer, between LED wafer and translucent cover, can be provided with, also layer of fluorescent powder can be set, after the LED wafer of LED lamp partly is arranged on the center of the through hole on the substrate, the both positive and negative polarity binding post of LED lamp is electrically connected with the both positive and negative polarity metal level of the PCB circuit of substrate.

2, the LED lamp panel structure with patch type bracket according to claim 1, it is characterized in that described punching out have near the groove on bowl metallic plate of cup-shaped groove and another piece metallic plate near the part of groove, upwards be set to boss, the both positive and negative polarity of LED wafer is connected on the boss.

3, the LED lamp panel structure with patch type bracket according to claim 1, it is characterized in that described two metallic plate binding posts can extend into both positive and negative polarity list binding post respectively laterally, also every binding post of two metallic plate binding posts can be extended into anodal two binding post and the two binding posts of negative pole to both sides respectively.

4, the LED lamp panel structure with patch type bracket according to claim 1 is characterized in that described metallic plate makes with copper material or metal material, and described substrate is to make with aluminium or metal material or common PVC material.

5, the LED lamp panel structure with patch type bracket according to claim 1 is characterized in that described translucent cover is to make with one of transparent plastics, epoxy resin, silica gel, glass, ceramic material.

6, the LED lamp panel structure with patch type bracket according to claim 1, when a through hole was arranged at the bottom that it is characterized in that described bowl cup-shaped groove, then a bowl cup-shaped groove all was arranged in the both sides of through hole.

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