Patent Grant
11333307
The present invention is related to a filament lighting apparatus and a manufacturing method thereof, and more particularly related to a filament lighting apparatus for lamps and a manufacturing method thereof.
A Lamp is a very important apparatus for human civilization life. With development of technology, multiple lamps are designed and manufactured to meet multiple requirements.
With the progress of light Emitting Diode (LED) technology and decline in cost, light emitting diode manufacturing lamps increasingly popular to people's daily lives. Most of white LEDs are currently produced through coating a layer of yellow phosphor on a blue LED (near-UV, wavelengths 450 nm to 470 nm). The yellow phosphor usually obtained by mixing cerium doped with cerium Aluminum garnet (Ce3+: YAG) crystals, and grind the mixture, mix them in a dense adhesive. When the LED chip is blue, part of the blue light will be very efficient conversion of the crystal into a broad spectrum (spectral center is about 580 nm) mainly yellow light. As the yellow light may stimulate red and green light in the naked eye, and then mixed with the blue LED, making it look like white light, and the color is often called “moonlight white.” The method of making white LEDs was developed by Nichia Corporation and used in 1996 to produce white LEDs. To adjust the color of light yellow light, other rare earth metal terbium or gadolinium may be used to replace cerium (Ce) doped with Ce3+: YAG, or even to replace part or all of aluminum in YAG. Based on the characteristics of the spectrum, red and green objects in the LED irradiation may not look like the broad spectrum of light when the light so clear. In addition, due to the variation of production conditions, the color temperature of the finished product of the LED is not uniform, differing from warm yellow to cold blue, so the production process may be distinguished by outcome characteristics.
Another method of making white LED is a bit like a fluorescent lamp, emitting near ultraviolet LED may be coated with two kinds of phosphor mixture, one is red and blue light europium, the other is green, doped with copper and aluminum of zinc sulfide (ZnS). Because the UV may make the adhesive in the epoxy resin cracking deterioration, production is more difficult, and life is shorter. Compared with the first method, it is less efficient and produces more heat (because former Stokes shift is larger), but the advantage is better spectral characteristics, producing the better look light, and because the UV light LED power is high, so the efficiency is relatively low compared to the first method, but the brightness is similar.
The latest method of making white LEDs is no longer used phosphors. The new approach is to grow the epitaxial layer of zinc selenide on zinc selenide (ZnSe) substrates. The active area emits the blue light and the substrate emits yellow when connecting the power, and then mixing together becomes white light.
There are some different technical problems have to be solved in the different light emitting diode lamps, including heat dissipation, light efficiency and light emission direction. In addition, if it may further reduce the cost of manufacturing may also help to increase the popularity of the light emitting diode lamps in human society.
According to the first embodiment of the present invention, providing a filament lighting apparatus including a base, a pillar, multiple lamp strips, at least one fixed metal strip, a driving circuit and a lamp cap. The lower end of the pillar is connected to the base. The pillars may be one or more elongated structures, such as glass pillar, metal strip pillar, pillars of various material mixes, and the like. The base and the pillars may be made of the same glass materials, or may be made of different materials. The base is connected to the pillar in a manner through fusing together after heating or in-mold assembly.
Each of the multiple lamp strips has an upper end point and a lower end point. The lamp strip may be an elongated structure. The lamp strip is composed of multiple light emitting diode modules or other light emitting elements to provide illumination functions. Multiple light emitting diode modules connect to each other in parallel or in series. It is possible to set the corresponding circuit on the lamp strip to meet the requirements. The conductive terminals are set on two sides of the lamp strip to transmit the current to the multiple light emitting diode modules. The conductive terminals are set at the upper and lower end points, for example, by a conductive sheet or a conductive strip.
At least one fixed metal strip electrically connects to the upper end of the lamp strip. The fixed metal strip is set around the upper end of the pillar, and the fixed metal strip is not directly connected to the pillar. It is not necessary that the fixed metal strip mentioned here has a specific strip shape and be made by 100% metal. The material of the fixed metal strip contains a specific proportion of metal to make electrical connections between the lamp strips. In other words, the upper end of the lamp strip may be indirectly connected to the upper end of another lamp strip by means of a fixed metal strip.
In addition, the fixed metal strip may be multiple identical, similar or different fixed metal strips. In other words, the one or more metal strips may constitute multiple different structures. The following example may be used to illustrate several possible implementations.
In addition, the fixed metal strip surrounds the upper end of the pillar and may have a surrounding portion hundred percent around the upper end of the post. However, the surround here does not need to be hundred percent closed, as long as the lamp strip may be shaken when the fixed metal strip is driven may have the opportunity to touch the pillar, and thus avoid more than the predetermined range of shaking may be considered to belong to the definition of the surround here.
In addition, the fixed metal strip connected to the upper end of the lamp strip does not come into direct contact with the pillar, meaning that the fixed metal strip remains at a certain distance from the post.
In order to provide a source of electricity, at least two of the lower end points of the lamp strip are electrically connected to the drive circuit to receive power supply. The lamp cap may accommodate the drive circuit and support the base, and may be made in different shapes and configurations, such as a standard Edison lamp cap or multiple different shapes, and the structure for connection with the outside may be regarded as a lamp cap.
As described above, in some embodiments, the fixed metal strip keeps a distance from the pillar. The fixed metal strip touches the upper end of the pillar when the lamp is shaken to a predetermined distance to prevent the lamp strip from shaking beyond the predetermined distance. In practically, the fixed metal strip has a ring structure, and extends out of the bracket welding a number of lamp strip in the ring structure. The ring structure maintains a distance for 0.5 cm from the pillars. The ring structure is driven when the light is shaken by the handling. Because the distance between the ring structure and the pillar is only 0.5 cm, once the ring structure shaking more than 0.5 cm may touch the pillar and prevent further displacement of the lamp. In the condition of lamp strip having a certain flexibility may ensure the lamp strip structure to maintain a certain stability.
Of course, as mentioned above, the fixed metal strips do not have to be hundred percent closed around the pillars. As long as with some closed parts, when the lamp strip drives the fixed metal bar to shake and make contact parts touch the pillar, and stop further shaking may fall within the scope of the invention to be protected.
For example, there may be two or more fixed metal strips in practical. The two or more fixed metal strips may have two or more openings relative to each other around the upper end of the pillar. In other words, the one or more fixed metal bars as long as make a certain degree of encirclement to the pillars, it is referred to the around form here.
The fixed metal strips may be made of nickel metal or iron-nickel alloy or other materials, and the fixed metal strips have a certain degree of elasticity. The fixed metal strip may also include an insulating material that allows the fixed metal strip to retain multiple isolated electrical connections to match the different lamp strips in parallel or in series in other implementations.
In another embodiment, the magnet may be embedded at the upper end of the pillar, and a certain magnetic property may be added to the fixed metal strip. Through the magnetic phase suction or repulsion to enhance the stability of the overall structure of lamp strip.
In addition, the upper end of the multiple lamp strips forms the first polygon, and the lower end constitutes the second polygon. It may make the circumference of the first polygon and the circumference of the second polygon greater than ½ in the design process. In some embodiments, the circumference ratio of the circumference of the first polygon to the second polygon is greater than or equal to ¾.
The configuration may achieve uniform illumination, and reduce the spot with enhanced heat dissipation.
For example, if there are four lamp strips, the upper end of the lamp strips may form an upper quadrilateral, and the lower end of the lamp strip may form a lower quadrilateral. The circumference of the upper quadrilateral may be greater than ½ of the circumference of the lower quadrilateral, or further greater than or equal to ¾.
In addition, the endpoints of the polygons do not have to be all in one plane. Also, the first polygon and the second polygon may be similar, identical, but not necessarily identical or identical. In order to reduce the spot, a misalignment may be maintained between the first polygon and the second polygon. For example, the first polygon is similar to the second polygon, but both have different relative angles with respect to the axis of the pillar. The angle may be set between 15 degrees and 60 degrees.
In addition, the filament lighting apparatus may further include a lamp cover in practice, such as a transparent or translucent or misty bulb. The lampshade and the base form an enclosed space and may arrange heat dissipation gas.
The pillars may be made by glass material, metallic material or other mixed material. The wire may be set in the pillar or the surface of the pillar, etc. to provide multiple light spot connection possibilities.
The upper end of the lamp strip may be connected to the fixed metal strip by welding or other means. At the time of manufacture, the fixed metal strips may be pre-embedded or otherwise secured to the pillars and are disconnected from the pillar after connecting the lamp strips. In other words, the pillars may hold a portion of the same material as the fixed metal strip.
According to another embodiment of the present invention, providing a method of manufacturing a filament lighting including:
A pillar is set on the base. At least one fixed metal strip is set at the upper end of the pillar. The upper end of the multiple lamp strips is welded to the fixed metal strip. Connecting the lower end of the multiple lamp strips to the base. Disengaging the connection between the fixed metal strips of the pillar such that the fixed metal strip surrounds the upper end of the pillar.
For example, the base and pillars are made by pouring glass into the mold. In the production process, the structural part of the fixed metal strip may be embedded in the pillar. Then, the light bar is welded to the fixed metal strip. After the connection of the fixed metal strip to the pillar is carried out by cutting or hot-melting.
Please refer to
In the example, the bulb shell 121 and the base 123 are made of glass, and forming a containing space. The bulb shell 121 may be a transparent material, a matte surface or multiple colors. The lamp strip module 122 and the heat dissipation gas are placed in the containing space. The lamp cap 126 may be multiple standard specifications of the Edison lamp cap or other structural connector for directing external power input to the driving circuit 124. The driving circuit 124 may convert an external power supply to provide a current suitable for the voltage characteristics to the lamp strip module 122.
The filament light may be placed in multiple different fixtures. In this embodiment, the lamp strip module 122 may have features such as lamp strips, pillar, fixed metal strips, and the like. Multiple implementation examples are illustrated by a series of illustrations. Of course, the examples are not intended to limit the scope of the invention.
Before starting to explain the embodiment of the detailed lamp strip module 122, please refer to
First, a pillar is set on a base (step 201). The base may be similar to the base shown in
In addition, at least one fixed metal strip is set at the upper end of the pillar (step 202). The following may illustrate the shape of several different fixed metal strips.
Then, the upper end of the multiple lamp strips is welded to the fixed metal strip (step 203). Connecting the lower end of the plurality of light bars to the base (step 204). After the lamp strip is connected to the fixed metal strip, the connection between the fixed metal strip and the pillar may be disconnected (step 205). But even if disengaged, the structure of the fixed metal strip is set so that the fixed metal strip surrounds the upper end of the pillar.
In other words, in the production method, the fixed metal strip was originally connected with the upper end of the pillar, but be broken in the production process. Of course, the method does not necessarily have to be tied to all the embodiments implemented by the present invention. Some embodiments of filament lightings do not have to be made in the way.
In particular, an embodiment of a filament lighting apparatus according to the present invention is characterized by including a base, a pillar, multiple lamp strips, at least one fixed metal strip, a driving circuit and a lamp cap. For example, the structure described in
Next, refer to
In
Each lamp strip of multiple lamp strips has an upper end point and a lower end point. For example, the lamp strip 342 has an upper end 302 and a lower end 352. In the embodiment, there are four lamp strips, so there are four corresponding upper points 301, 302, 303, 304 of the corresponding lamp strip. In the example, the fixed metal strip 311 has two semicircular encircling structures, and multiple branches extending from the semicircular surround structure, the upper ends of the strip being welded to the branches. For example, the upper end 302 of the light bar 342 is soldered to the branch 3112. As shown in the flow chart of
In the example, the lower end 352 of the lamp strip 33 is connected to the base 37 through a metal strip 362. The metal strip 362 and the fixed metal strip 311 have a certain structural support force, so that the lamp bars may be kept in a predetermined expanded shape.
The lamp strip may be an elongated structure in which multiple light emitting diode modules or other light emitting elements are attached to provide illumination functions. Multiple light emitting diode modules are connected in parallel or in series. If necessary, you may place the corresponding circuit on the lamp strip. A conductive terminal is set on both sides of the light bar to direct current to the light emitting diode modules. The conductive terminals are set at the upper and lower end points, for example, by a conductive sheet or a conductive strip.
As described above, the upper end of the lamp strip is electrically connected to the fixed metal strip. The fixed metal strip being disposed about an upper end of the pillar and the fixed metal strip not directly contacting the pillar. For example, in the example of
It is not necessary that the fixed metal strip mentioned here has a specific strip shape and be made by 100% metal. The metal strips mentioned here have a certain proportion of metal and may be used to provide electrical connections between lamp strips. In other words, the upper end of the lamp strip may be indirectly connected to the upper end of another lamp strip by means of a fixed metal strip.
In addition, the fixed metal strip may contain multiple identical, similar or different fixed metal strips. In other words, the one or more metal strips may constitute a variety of different structures. The following examples may illustrate several possible implementations in conjunction with a number of illustrations.
Please refer to
In
Please refer to
In
Please refer to
In
Please refer to
Contrary to six lamp strips of
Please refer to
Contrary to four lamp strips of
In other words, the lamp strip may have a different number. The fixed metal strips may have different structures. The way the fixed metal strips surround the pillar may also be in multiple different design ways.
In addition, it is mentioned here that the fixed metal strip surrounds the upper end of the pillar and may have a surrounding portion hundred percent around the upper end of the post. However, the surround here does not need to be hundred percent closed, as long as the lamp strip may be shaken when the fixed metal strip is driven may have the opportunity to touch the pillar, and thus avoid more than the predetermined range of shaking, it may be considered to belong to the definition of the surround here.
In addition, the fixed metal strip connected to the upper end of the lamp strip does not come into direct contact with the pillar, meaning that the fixed metal strip remains at a certain distance from the post.
In order to provide a source of electricity, at least two of the lower end points of the lamp strips are electrically connected to the driving circuit to receive power supply. The lamp cap may accommodate the driving circuit and support the base, and may be made in different shapes and configurations, such as a standard Edison lamp cap or a variety of different shapes, and the structure for connection with the outside may be regarded as a lamp cap.
As described above, in some embodiments, the fixed metal strip keeps a distance from the pillar. The fixed metal strip touches the upper end of the pillar when the lamp is shaken to a predetermined distance to prevent the lamp strip from shaking beyond the predetermined distance. In practically, the fixed metal strip has a ring structure, and extends out of the bracket welding a number of lamp strip in the ring structure. The ring structure maintains a distance for 0.5 cm from the pillars. The ring structure is driven when the light is shaken by the handling. Because the distance between the ring structure and the pillar is only 0.5 cm, once the ring structure shaking more than 0.5 cm may touch the pillar and prevent further displacement of the lamp. In the condition of lamp strip having a certain flexibility may ensure the lamp strip structure to maintain a certain stability.
Of course, as mentioned above, the fixed metal strips do not have to be hundred percent closed around the pillars. As long as with some closed parts, when the lamp strip drives the fixed metal bar to shake and make contact parts touch the pillar, and stop further shaking may fall within the scope of the invention to be protected.
For example, there may be two or more fixed metal strips in practical. The two or more fixed metal strips may have two or more openings relative to each other around the upper end of the pillar. In other words, the one or more fixed metal bars as long as make a certain degree of encirclement to the pillars, it is referred to the around form here.
The fixed metal strips may be made of nickel metal or iron-nickel alloy or other materials and have a certain degree of elasticity. In other implementations. The fixed metal strip may also include an insulating material that allows the fixed metal strip to retain multiple isolated electrical connections to match the different lamp strips in parallel or in series.
In another embodiment, the magnet may be embedded at the upper end of the pillar, and a certain magnetic property may be added to the fixed metal strip. Through the magnetic phase suction or repulsion to enhance the stability of the overall structure of lamp strip.
In addition, the upper end of the multiple lamp strips forms the first polygon, and the lower end constitutes the second polygon. At the time of design, may make the circumference of the first polygon and the circumference of the second polygon greater than ½. In some embodiments, the circumference ratio of the circumference of the first polygon to the second polygon is greater than or equal to ¾.
Please refer to
In
First, the four upper ends 901, 902, 903, 904 constitute a first quadrilateral. The four lower end points 911, 912, 913, 914 constitute a second quadrilateral. As described above, the upper end point may be adjusted by fixing the metal strip, and the lower bar may also be adjusted by the associated structure with the fixed position so that the lamp may be unfolded in a predetermined manner. At the time of fabrication, the ratio of the circumference of the first quadrilateral to the circumference of the second quadrilateral may be made larger than ½. In some embodiments, the circumference of the circumference of the first quadrilateral and the second quadrilateral is greater than or equal to ¾. In the example, the first quadrilateral is similar to the second quadrilateral and has a misalignment 93 between the two. Through this setting may make the whole luminous uniform, reduce the spot with enhanced heat effect.
In the above embodiment, the fixed metal strip is separated from the pillar, but the fixed metal strip may remain connected to the post in other embodiments.
For example, referring to
For another example, referring to
In addition, the endpoints of the polygons do not have to be all in one plane. Also, the first polygon and the second polygon may be similar, identical, but not necessarily identical or identical. In order to reduce the spot, a misalignment may be maintained between the first polygon and the second polygon. For example, the first polygon is similar to the second polygon, but both have different relative angles with respect to the axis of the pillar. The angle may be set between 15 degrees and 60 degrees.
The upper ends 111, 112, 113, 114 of the four lamp strips and the lower ends 131, 132, 133, 134 of the four lamp strips are shown in
In addition, the filament lighting apparatus may further include a lamp cover in practice, such as a transparent or translucent or misty bulb. The lampshade and the base form an enclosed space and may arrange heat dissipation gas.
The pillars may be made by glass material, metallic material or other mixed material. The wire may be set in the pillar or the surface of the pillar, etc. to provide multiple light spot connection possibilities.
The upper end of the lamp strip may be connected to the fixed metal strip by welding or other means. At the time of manufacture, the fixed metal strips may be pre-embedded or otherwise secured to the pillars and are disconnected from the pillar after connecting the lamp strips. In other words, the pillars may hold a portion of the same material as the fixed metal strip.
According to another embodiment of the present invention to provide a method of manufacturing a filament lighting apparatus including:
A pillar is set on the base. At least one fixed metal strip is set at the upper end of the pillar. The upper end of the multiple lamp strips is welded to the fixed metal strip. Connecting the lower end of the multiple lamp strips to the base. Disengaging the connection between the fixed metal strips of the pillar such that the fixed metal strip surrounds the upper end of the pillar.
For example, the base and pillar are made by pouring glass into the mold. In the production process, the structural part of the fixed metal strip may be embedded in the pillar. Then, the light bar is welded to the fixed metal strip. After the connection of the fixed metal strip to the pillar is carried out by cutting or hot-melting.
In addition to the embodiments mentioned above, the present invention may have other possibilities of implementation. As long as the changes are still subject to the application of the concept of the present invention, it may still be considered as belonging to the present invention. In addition to the above described embodiments, various modifications may be made, and as long as with the spirit of the same invention, the various designs may be made by the skilled in the art are susceptible to the present invention range.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201710901128.9 | Sep 2017 | CN | national |
The present application is a continued application of U.S. application Ser. No. 15/860,661.
| Number | Name | Date | Kind |
|---|---|---|---|
| 9995474 | Jiang | Jun 2018 | B2 |
| 10234079 | Spehalski | Mar 2019 | B1 |
| 10240724 | Jiang | Mar 2019 | B2 |
| 10731798 | Jiang | Aug 2020 | B2 |
| 20130058080 | Ge | Mar 2013 | A1 |
| 20180347766 | Choi | Dec 2018 | A1 |
| Number | Date | Country | |
|---|---|---|---|
| 20200332964 A1 | Oct 2020 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 15860661 | Jan 2018 | US |
| Child | 16917252 | US |
