WO2010045803A1

WO2010045803A1 - Simple thin luminous diode flexible color-changing neon light

Info

Publication number: WO2010045803A1
Application number: PCT/CN2009/072591
Authority: WO
Inventors: 田德华
Original assignee: Tian Dehua
Priority date: 2008-10-21
Filing date: 2009-07-02
Publication date: 2010-04-29
Also published as: CN101387374A

Abstract

A simple thin luminous diode flexible color-changing neon light comprises a core wire (6), a diode luminous device, copper stranded wires (9), an opaque covering layer (7), and a DC power supply device. The diode luminous device is formed by a plurality of diode luminous units connecting in series. The core wire (6) is a translucent light scattering body. A groove (8) is provided at the lower part of the core wire (6). The groove (8) and the core wire (6) are provided as coaxial, and the length of the groove (8) and the core wire (6) are same. The width of the space of the groove’s (8) upper part is greater than the width of the opening of the groove’s (8) lower part. The diode luminous device is installed in the groove (8) with luminous surface of the diode luminous units facing upwards. The part of the core wire (6) located under the diode luminous device is covered by the opaque covering layer (7).

Description

Manual Simple Thin Light Emitting Diode Flexible Color Neon Light

[1] Technical field

[2] The present invention relates to a neon lamp, and more particularly to a simple and flexible light-emitting diode flexible color neon lamp with a variety of colors, a wide range of applications, and a small body weight, belonging to the field of neon production.

[3] Background Art

[4] With the acceleration of urban modernization and the improvement of people's living standards, neon as a fascinating lighting device has been widely used in entertainment venues, exterior rendering, advertising and family life. Its colorful light source makes people feel refreshed. . The neon lights currently used, some of which are glass neon lights, have the disadvantages of: the glass is fragile, neither safe nor short in life, so its application is greatly limited and has a tendency to be slowly replaced by new products; The other part is the light-emitting diode flexible color neon that gradually becomes mainstream. This kind of neon lamp is equipped with several light-emitting diodes in a flexible housing. These light-emitting diodes are connected to each other in series or in parallel, and are powered by a rectified DC power supply. By adjusting the strength of the current, the color of the light-emitting diode or the color of the outer surface of the light-emitting diode, etc., the glass neon effect of each part of the light-emitting diode emitting different light and different colors in different turns is achieved, and the neon has It is widely used because of its flexibility, wide application, long life and safety.

[5] At present, all LEDs with flexible color-changing neon lights use opaque cores and translucent astigmatism

The three-layer structure of opaque cladding, even the most advanced integrated structure of diode neon lights, such as the application number published by the National Patent Office of China, 200510034551.0, the patent name is "an improved color changing hose""Lightstructure" patent, the foregoing description of the product includes opaque core wire, diode light-emitting device, copper stranded wire, translucent diffuser, opaque coating, DC power supply device structure, the largest structure The drawback is the repeated superposition of materials, which not only makes the whole product more high in height, volume and weight, but also has more production processes, which makes the raw materials and production costs of the products larger and lower in production efficiency, which is not conducive to the needs of the products. The application of small size and low height has greatly limited the application of the flexible color-changing neon light-emitting diode, which in turn affects the promotion process of the flexible color-changing neon light of the entire light-emitting diode. [6] On the other hand, all current LED flexible color-changing neon lamps use diode bulbs as the light source, as disclosed in the above-mentioned application number 200510034551.0 and patented as "a modified color-changing hose lamp structure". Diode neon lights of the following structure: First, three LED bulbs (red, blue, green, respectively) are fixedly mounted on a PCB board (ie, a printed circuit board) to form a light-emitting unit, and then several such light-emitting units are mounted on the core. In the hole of the wire, the light-emitting units are connected in series by wires. The neon lamp of this structure is mainly for facilitating discoloration and color mixing in the same area, and is advantageous for the fixed installation of the LED bulb and the packaging of the entire core wire. Therefore, all current diode neon lamps have an undisputed defect, that is, the use of diode bulbs as a light source. Due to the high height of the diode bulbs, the height of the entire product cannot be lowered, resulting in a larger volume and weight. Inconvenient application in many occasions requiring small size and low height is not conducive to the benign development of the diode neon industry.

[7] At the same time, diode bulbs have certain defects in the use of light sources. Because the light is diverging around, and the diode neon uses the light source above it, so much light around the diode bulb is not projected. People are wasted in sight and form a waste of energy, which is inconsistent with the national energy conservation policy.

[8] Finally, in the existing integrated structure diode neon, the three solder joints on the same side of the PCB are on the same line, and both are spot soldered on the panel, due to the three solder joints. The adjacent distance is small and the solder joint is large (due to the particularly large amount of welding, it is generally impossible to carry out delicate welding), so it is easy to generate creepage, that is, a certain circuit conduction is generated between adjacent solder joints. The phenomenon causes the voltage across the corresponding diode to decrease, resulting in insufficient brightness or impure color, thereby reducing the quality of the entire product.

[9] Summary of the invention

[10] The object of the present invention is to provide a simple and light-emitting diode flexible discoloration neon lamp for solving the above problems. The neon body is light and light, saves electric energy, and has pure light color.

[11] The present invention includes a core wire, a diode light emitting device, a copper strand, an opaque cladding layer, and a DC power supply device

Wherein, the diode illuminating device is formed by connecting a plurality of diode illuminating units in series, the opaque coating layer is coaxial with the core wire and is equal in length, and is covered on the outside of the core wire, and the power input end of the diode illuminating device corresponds to the copper stranded wire The connection, the copper strand is connected to the power output of the DC power supply unit, and the innovation is that The core wire is a translucent diffusing body, and a groove having the same axial direction and the same length as the core wire is disposed under the core wire, and a diode light emitting device is installed in the groove, and the diode light emitting unit is The light emitting surface is upward, the width of the upper space of the groove is greater than the width of the lower opening thereof; the copper strand is coaxial with the core wire and is equal in length, and is longitudinally arranged side by side on the inner side of the core wire; The cross-section of the portion of the wire above the diode illuminating device is semi-circular or circular or elliptical or square, and the portion of the core below the diode illuminating device is covered by the opaque coating.

[12] In the above structure, the invention combines the opaque core wires and the translucent astigmatisms which are independent of each other in the conventional diode neon lamp, and replaces them with a translucent core wire, and the visual effect is the same as before; technically feasible, the core The groove below the line and the deformed shape above can be injection molded at one time; the injection molding process is reduced, and the cost is saved; the important thing is to reduce the height and volume of the entire product, which has been a product of the industry. bottleneck.

[13] In order to further facilitate accurate positioning of the diode lighting unit, two lateral sides corresponding to the diode lighting unit on the core line are provided with intercommunicating transverse holes, and the shape and size of the transverse holes are illuminated with the diode The edges of the unit correspond.

[14] The present invention improves the light source portion, the diode lighting unit includes a wiring substrate, a fixed substrate and three patch LEDs, wherein the fixed substrate is fixedly mounted on the wiring substrate, and the chip LED is fixedly mounted. On the fixed substrate, the three patch LEDs are red, green and blue patch LEDs, respectively, three solder joints are arranged at the two ends of the wiring substrate, and the two power terminals of each patch LED are respectively Corresponding to the solder joints at both ends of the wiring substrate.

[15] SMD LEDs are thin and single-sided, with low power consumption, wide voltage supply, built-in shield, strong anti-interference and stable performance.薄Using thin chip LEDs to reduce the height and volume of the entire product, which saves cost and is convenient for many applications requiring small size and low height, greatly expanding the application range of diode neon; It is a surface light source, so the light it emits is divergent at a 180-degree angle. In the case where only one side light source is used, the light utilization rate is high, and the grounding saves power.

[16] As a further improvement of the light source of the present invention, the positions of the three solder joints at both ends of the wiring substrate are not on the same straight line. Such a structure makes the distance between adjacent solder joints larger, and solves the phenomenon of "crawling" caused by the small distance between adjacent solder joints, so that the insulation between adjacent solder joints is more it is good, Therefore, the voltage across the LED of the chip is a standard voltage, and the light with more pure color is emitted. Specifically, among the three solder joints at both ends of the wiring substrate, the intermediate solder joint is located closer to the fixed substrate, and the solder joints on both sides are located farther away from the fixed substrate. Of course, on the contrary, it is also possible to position the intermediate solder joint at a position farther away from the fixed substrate as long as the positions between the three solder joints are shifted.

[17] Further, among the three welding points at both ends of the wiring substrate, a welding hole is disposed at an intermediate welding point, and the welding wire is inserted into the welding hole for welding. The role of the soldering holes is to concentrate the soldering liquid in the holes as much as possible, and to reduce the area of the soldering liquid attached to the panel, thereby further avoiding the "crawling" phenomenon.

[18] In order to achieve an optimum color mixing effect, the positional relationship of the three of the patch light-emitting diodes mounted on the fixed substrate is: collectively forming an equilateral triangle. In this way, the distance between any two patch LEDs is the same, that is, the distance between the lights of any two colors is the same, and the best color mixing effect can be achieved compared with the linear arrangement of the previous ones. .

[19] The wiring substrate and the fixed substrate are both PCB boards. The PCB board, which is a printed circuit board, is made of insulating, heat-insulating and non-bending materials, and is widely used in electronic circuits.

[20] The beneficial effects of the present invention are:

[21] Since the invention combines the opaque core wires and the translucent astigmatisms which are independent of each other in the conventional diode neon lamp, and replaces them with a translucent core wire, the visual effect is the same as before, but the plastic consumables and the injection molding process are reduced, saving Material cost and production cost; It is important to reduce the height, volume and weight of the whole product, which greatly expands the application range of diode neon, which has always been a bottleneck in the application of products in the industry; The light patch LED is used as the light source to further reduce the volume and weight of the whole product. The high utilization rate of the same light saves energy and is environmentally friendly. The misalignment of the solder joint and the setting of the soldering hole are avoided. The "crawling" phenomenon caused by the distance between adjacent soldering points is too small, so that the color of the light emitted by the patch LED is more pure; the equilateral triangle positional relationship of the three red, blue and green patch LEDs, Optimize the color mixing effect of each diode lighting unit, thus making the color of the entire neon The effect is more colorful, clear and pure.

[22] BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic cross-sectional perspective view of the present invention;

Figure 2 is a cross-sectional view taken along line AA of Figure 1; Figure 3 is a cross-sectional view taken along line BB of Figure 1;

₄ is a top plan view showing the positional structure of the diode light-emitting device in the opaque core wire of the present invention; FIG. 5 is a front view showing the structure of the diode light-emitting unit of the present invention;

6 is a schematic rear view of the diode lighting unit of the present invention;

7 is a schematic view showing the circuit structure of a diode light-emitting device of the present invention;

Figure 8 is a schematic view showing the light-emitting effect of the diode light-emitting unit of the present invention;

Fig. 9 is a view showing the light-emitting effect of the diode light-emitting unit in the translucent diffuser in the present invention.

detailed description

The present invention will be further specifically described below with reference to the accompanying drawings:

As shown in FIG. 1, FIG. 2 and FIG. 3, FIG. 2 is a cross-sectional view of a portion of the lamp tube 1 between two adjacent diode light-emitting units, and FIG. 3 is a cross-sectional view of a portion of the lamp tube 1 within the range of the diode light-emitting unit. The invention comprises a core wire 6, a diode illuminating device, a copper strand 9, an opaque cladding 7, and a DC power supply unit. As shown in FIG. 4, only the structure of one of the core wires 6 is shown in the figure. Referring to FIG. 2, FIG. 3 and FIG. 4, the core wire 6 is a translucent diffusing body, and a core wire is disposed under the core wire 6. 6 with the axial direction and the same length of the groove 8, the diode light-emitting device is installed in the groove 8, the light-emitting surface of the diode light-emitting unit faces upward, the width of the upper space of the groove 8 is larger than the width of the lower opening; the copper strand 9 and the core The wires 6 are axially and equidistant, and are longitudinally arranged side by side on one side of the core wire 6; the cross section of the core wire 6 located above the diode lighting device is semicircular, and of course, may be rounded as needed or Elliptical or square, the portion of the core 6 below the diode illumination device is covered by an opaque coating 7. As shown in FIG. 3, two lateral sides corresponding to the diode light-emitting unit on the core wire 6 are provided with inter-directional lateral holes 13 having a shape and a size corresponding to the edges of the diode light-emitting unit, and the lateral holes 13 are favorable for Accurate positioning of the diode lighting unit.

3 to 6, the diode lighting device is formed by a plurality of diode lighting units connected in series, each of the diode lighting units are respectively placed in the recess 8 in the core wire 6, the outer edge of the diode lighting unit is placed in the transverse hole 13; The diode light-emitting unit includes a wiring substrate 11, a fixed substrate 12, and three patch LEDs 17. The fixed substrate 12 is fixedly mounted on the wiring substrate 11, and the chip LED 17 is fixedly mounted on the fixed substrate 12. The three patch LEDs 17 are respectively red, green and blue patch LEDs, and three solder joints are respectively arranged at both ends of the wiring substrate 11, that is, solder joints 15 on both sides and solder joints _{18 in the} middle, each Two power terminals of the patch LED 17 are respectively connected to the wiring substrate 11 The solder joints 15 or the solder joints 18 of the terminals are connected correspondingly; among the three solder joints at both ends of the wiring substrate 11, the intermediate solder joints 18 are located closer to the fixed substrate 14, and the solder joints 15 on both sides are located farther away from the fixed substrate 14 . Of course, the intermediate solder joint 18 may be located farther away from the fixed substrate 14 as long as the position between the three solder joints is staggered; at the intermediate solder joint 18, a soldering hole 16 is provided, and the solder joint will be connected. The wires 10 are inserted into the soldering holes 16 for soldering; the positional relationship of the three patch LEDs 17 mounted on the fixed substrate 12 is: collectively forming an equilateral triangle; the wiring substrate 11 and the fixed substrate 12 are both PCB boards.

SMD LED 17 is thin and single-sided, and has the characteristics of low power consumption, wide voltage supply, built-in shield, strong anti-interference and stable performance. The use of a thin patch LED 17 reduces the height and volume of the entire product, thereby saving cost and facilitating application in many applications requiring small size and low height, greatly expanding the application range of the diode neon; Because it is a surface light source, the light emitted by it emits at a 180 degree angle (as shown in Figures 8 and 9). In the case where only one side light source is used, the light utilization rate is high, and the grounding saves the electric energy; Among the solder joints at both ends of the wiring substrate 11, the misalignment structure between the solder joints 15 on both sides and the intermediate solder joint 18 solves the "crawling" phenomenon which was previously caused by the small distance between adjacent solder joints. The insulation between adjacent solder joints is better, so that the voltage across the chip LED 17 is a standard voltage, and the light with more pure color is emitted; the function of the soldering hole 16 is to concentrate the solder liquid in the hole as much as possible. Reducing the area of the soldering liquid attached to the panel, thereby further avoiding the "crawling" phenomenon; the distance between any two patch LEDs 17 is the same, that is, They are the same distance between the light of two colors, compared with previously used structures aligned Bian, can reach the best mixing effect.

[37] As shown in FIG. 1, FIG. 2 and FIG. 3, the opaque coating layer 7 is coaxial with the semi-transparent core wire 6 and is equal in length, and is covered with a semi-transparent core under the diode light-emitting device and on both sides. Outside of line 6. In the production process, as shown in FIG. 1 to FIG. 6, the core wire 6 of a predetermined shape is first processed with a translucent PVC material, and the copper strand 9 is pre-buried into the translucent core wire 6 at a predetermined position during the processing. Inside, the same core wire 6 is reserved with a groove 8 and a transverse hole 13, and the above process can be completed in one time by using an injection molding machine with a mold; then the welded diode light-emitting unit is respectively opened from the opening below the groove 8. Placed in the recess 8 , the two ends of the wiring substrate 11 of the diode lighting unit are placed in the lateral hole 13 , the light emitting surface of the diode lighting unit faces upward, and the connecting wire 10 between the diode lighting units is placed in the recess 8; Next, the injection molding process of the opaque coating 7 is performed. The injection molding machine cooperates with the mold to coat the lower part of the diode light-emitting device on the semi-transparent core 6 with an opaque PVC material to form an opaque coating layer 7 for mounting the product and shielding the unused light.

[38] Regarding the power supply structure of the diode illuminating device, the power input end of the diode illuminating device is connected with the copper strand 9 , and the copper strand 9 is connected with the power output end of the DC power supply device (not visible in the figure), in combination with FIG. 1 In the application process, after cutting a length of the lamp tube 1 according to the required length, a standard specification power supply end seat 2 and a tailstock 5 are respectively installed at both ends of the lamp tube 1, forming an aesthetic end and connecting the circuit circuit. (The connection structure and method of the circuit are described below), the power supply terminal 2 and the power output of the DC power supply are connected by a cable 3, and the cable 3 has a plurality of independent wires 4, each of which is respectively The corresponding power output of the DC power supply unit is connected. The DC power supply unit is a very mature technology. It is generally composed of a multi-DC output transformer and a controller that can be placed into the software. The specific structure is not mentioned here.

[39] As shown in FIG. 7, the circuit structure of a part of the diode lighting unit is shown, including the electric wire 21 and the electric wire 2

2. The electric wire 23, the electric wire 24, the diode light emitting unit 31, the diode light emitting unit 32, the diode light emitting unit 33, and the diode light emitting unit 34; the electric wire 21, the electric wire 22, the electric wire 23, and the electric wire 24 respectively represent one of the four copper stranded wires The negative line and the three positive lines, the electric wire 22, the electric wire 23, and the electric wire 24 respectively represent power input lines of three colors of red, blue, and green.

[40] In FIG. 7, the current of the electric wire 22 sequentially passes through the soldering point 46 of the diode lighting unit 31, the patch LED 42, the soldering point 47, the soldering point 56 of the diode lighting unit 32, the patch LED 52, and the soldering point 57. a soldering point 66 of the diode lighting unit 33, a patch LED 62, a soldering point 67, a soldering point _{76 of the} diode lighting unit ₃₄ , a patch LED 72, a soldering point 77, and finally a loop formed by the negative electrode 21; The current passes through the soldering point 48 of the diode lighting unit 31, the patch LED 43, the soldering point 49, the soldering point 58 of the diode lighting unit 32, the patch LED 53, the soldering point 59, the soldering point 68 of the diode lighting unit 33, The chip LED 63, the soldering point 69, the soldering point _{78 of the} diode lighting unit ₃₄ , the patch LED 73, the soldering point 79, and finally the loop through the negative electrode 21; the current of the wire 24 sequentially passes through the soldering point of the diode lighting unit 31. 44. SMD LED 41, solder joint 45, solder joint 54 of diode lighting unit 32, and chip LED 51. The soldering point 55, the soldering point 64 of the diode lighting unit 33, the patch LED 61, the soldering point 65, the soldering point _{74 of the} diode lighting unit ₃₄ , the patch LED 71, the soldering point 75, and finally formed by the negative electrode 21 Loop. By controlling the presence, absence, and size of the input voltage of the electric wire 22, the electric wire 23, and the electric wire 24, Controls the red, blue, and green colors of the SMD LEDs to be bright, off, strong, and weak, achieving neon effects. The control of the input voltage is generally controlled by software. It has a variety of variations and is easy to implement. It is a very advanced control method.

[41] Description: The above-mentioned structure of the same color chip LEDs are connected in series, but in the actual circuit, there is a finite current resistance in each current loop, and the same color LEDs may be connected in parallel. Connection relationship. Through the application of the current limiting resistor, the resistance of the whole product can be easily combined; the flexible application of the series and parallel connection makes the color change of the whole product more colorful.

[42] FIG. 8 shows a light-emitting effect of the diode light-emitting unit of the present invention, and light emitted from the patch light-emitting diode mounted on the fixed substrate 14 (indicated by an arrow in the figure) is diverged within a range of the fixed substrate 14 or more. Since the range above the fixed substrate 14 basically belongs to the range of the visual effect of the neon lamp, the light emitted by the patch LED is basically utilized, and the light source utilization rate is high, and the grounding saves the electric energy, which is environmentally friendly.

[43] FIG. 9 shows the light-emitting effect of the diode light-emitting unit in the translucent diffuser 6 of the present invention, and the light emitted by the patch light-emitting diode mounted on the fixed substrate 14 (indicated by an arrow in the figure) is translucent After the astigmatism 6 is weakened and dispersed, the illuminating effect of the whole product looks softer and more uniform, and has the visual effect required by the traditional neon lamp.

Claims

Claim

[1] A simple thin LED flexible color neon lamp, comprising a core wire, a diode light emitting device, a copper stranded wire, an opaque coating layer, a DC power supply device, wherein the diode light emitting device is formed by connecting a plurality of diode light emitting units in series, an opaque package The cladding layer is coaxial with the core wire and is equal in length, and is covered on the outside of the core wire. The power input end of the diode lighting device is correspondingly connected with the copper stranded wire, and the copper stranded wire is correspondingly connected with the power output end of the DC power supply device, The core wire is a semi-transparent light-scattering body, and a groove having the same axial direction and the same length as the core wire is disposed under the core wire, and a diode light-emitting device is installed in the groove, and the diode emits light. The light emitting surface of the unit faces upward, the width of the upper space of the groove is greater than the width of the lower opening thereof; the copper strand is coaxial with the core wire and is equal in length, and is longitudinally arranged side by side on the inner side of the core wire; The cross section of the upper portion of the core wire located in the diode lighting device is semicircular or circular or elliptical or square, and the core wire is located under the diode lighting device The portion is covered by the opaque coating.

[2] The simple thin light-emitting diode flexible color-changing neon lamp according to claim 1, wherein: two lateral sides corresponding to the diode light-emitting unit on the core wire are provided with inter-directional transverse holes, transverse holes The shape and size correspond to the edges of the diode lighting unit.

[3] The simple thin light-emitting diode flexible color-changing neon lamp according to claim 1, wherein: the diode light-emitting unit comprises a wiring substrate, a fixed substrate and three patch LEDs, wherein the fixed substrate is fixedly mounted on On the wiring substrate, the chip light emitting diodes are fixedly mounted on the fixed substrate, and the three chip light emitting diodes are respectively red, green and blue chip light emitting diodes, and three soldering points are respectively arranged at two ends of the wiring substrate, and each The two power terminals of the chip LED are respectively connected to the solder joints at both ends of the wiring substrate.

[4] The simple thin light-emitting diode flexible color-changing neon lamp according to claim 3, wherein: the positions of the three solder joints at both ends of the wiring substrate are not on the same straight line.

[5] The simple thin light-emitting diode flexible color-changing neon lamp according to claim 4, wherein: among the three solder joints at both ends of the wiring substrate, the intermediate solder joint is located closer to the fixed substrate, and the solder joints on both sides are located Farther away from the position of the fixed substrate.

[6] The simple thin light-emitting diode flexible color-changing neon lamp according to claim 3 or 4 or 5, wherein: among the three solder joints at both ends of the wiring substrate, soldering is provided at an intermediate solder joint position Hole, soldering 吋 Insert the wire into the soldering hole for soldering.

[7] The simple thin light-emitting diode flexible color-changing neon lamp according to claim 3, wherein:

The positional relationship of the three patch LEDs mounted on the fixed substrate is: collectively forming an equilateral triangle.

[8] The simple thin light emitting diode flexible color changing neon lamp according to claim 3, wherein:

The wiring substrate and the fixed substrate are both PCB boards.