Universal detachable LED lamp filament and lamp

Abstract

The universal detachable LED lamp filament comprises a lamp holder assembly and a light source assembly installed on the lamp holder assembly, the lamp holder assembly comprises a driving circuit board, and the driving circuit board is connected with two output power lines to be electrically connected with the light source assembly; the light source assembly comprises a flexible LED lamp filament electrically connected with the driving circuit board through an output power line and a light-transmitting lamp filament support which wraps the outer side of the flexible LED lamp filament and is in a prefabricated shape, the light-transmitting lamp filament support is made through 3D printing, and the power connection end of the light-transmitting lamp filament support is fixed to the lamp holder assembly. According to the scheme, due to the fact that the light-transmitting lamp filament support is made through 3D printing, the light-transmitting lamp filament support can be conveniently made into any shape, then the flexible LED lamp filament is arranged in the light-transmitting lamp filament support along the shape of the light-transmitting lamp filament support, the shape of the light-transmitting lamp filament support is enriched, the length of the flexible LED lamp filament is reduced, and the flexible LED lamp filament is fixed more firmly.

Description

Technical Field

[0001] The invention belongs to the technical field of LED lighting lamps, and in particular relates to a universal detachable LED filament and a lamp. Background Art

[0002] At present, with the increasing maturity of LED chip manufacturing and packaging technology, the cost of LED components has been greatly reduced, and LED lamps have been used more and more widely. In the field of LED lighting, the energy-saving and long-life advantages of LED lamps have been fully reflected. In particular, since the appearance of LED filament lamps is very similar to that of traditional incandescent lamps, more and more LED filament lamps are favored by consumers in the market.

[0003] Since the substrate of the flexible filament is made of flexible material, the flexible filament can be shaped arbitrarily, so traditional LED filament lamps mostly use flexible filaments. The wiring problem of the flexible filament can be solved by the flip-chip process. Although the flexible filament can be shaped arbitrarily, it is not fixed by itself. If you want to shape the flexible filament, you need to first use hard materials to pre-shape it as a support column, and then fix the flexible filament around the support column. The flexible filament is fixed to the support column mostly by glue; in order to make the lamp emit light in all directions, the support column is made of light-transmitting material.

[0004] However, since the flexible filament is wrapped and fixed on the supporting column, the length of the flexible filament is longer than that of the traditional incandescent lamp, which increases the manufacturing cost of the lamp. In addition, since it is fixed with glue, it is easy to become ineffective due to heat after long-term use, causing the flexible filament to become detached. Moreover, although the supporting column is made of translucent material and can transmit light, in general, the brightness of the outer side of the flexible filament is brighter than that of the side close to the supporting column, which makes the light output of the lamp uneven, reduces the user experience, and is not conducive to the promotion of the lamp. Summary of the invention

[0005] The main purpose of the present invention is to provide a universal detachable LED filament and lamp, wherein the light source assembly includes: a flexible LED filament electrically connected to a driving circuit board through an output power line, and a translucent filament bracket wrapped around the outside of the flexible LED filament in a prefabricated shape, the translucent filament bracket is made by 3D printing, and the power connection end of the translucent filament bracket is fixed to the lamp holder assembly; adopting the above scheme, since the translucent filament bracket is made by 3D printing, it can be easily made into any shape, and then the flexible LED filament is arranged in the translucent filament bracket along the shape of the translucent filament bracket, which not only enriches the shape of the translucent filament bracket and reduces the length of the flexible LED filament, but also makes the flexible LED filament more firmly fixed, overcoming the traditional scheme of using the flexible LED filament to wrap around the support column and fix it with glue, so that the shape of the support column is relatively single, the use length of the flexible LED filament is long, the light output is uneven, and the flexible LED filament is not firmly fixed, which reduces the user's experience, and is further conducive to the promotion of lamps.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A universal detachable LED filament comprises: a lamp holder assembly, and a light source assembly mounted on the lamp holder assembly, wherein the lamp holder assembly comprises: a driving circuit board, and two output power lines extending from the driving circuit board are electrically connected to the light source assembly; wherein the light source assembly comprises: a flexible LED filament electrically connected to the driving circuit board via the output power lines, and a prefabricated light-transmitting filament bracket wrapped around the outside of the flexible LED filament, wherein the light-transmitting filament bracket is made by 3D printing, and an electrical connection end of the light-transmitting filament bracket is fixed to the lamp holder assembly.

[0008] As a preferred solution for a universal detachable LED filament, the translucent filament bracket includes: a filament bracket body and a bracket cover; the filament bracket body is provided with a filament groove, the flexible LED filament is embedded and fixed in the filament groove, and the bracket cover is covered at the opening of the filament groove to seal the filament groove; the bracket cover is provided with a fixing boss, and the opening of the filament groove is provided with a fixing groove, and the fixing boss is embedded in the fixing groove and fixed.

[0009] As a preferred solution for the universal detachable LED filament, the material of the light-transmitting filament bracket is PETG, PC or PLA.

[0010] As a preferred solution for a universal detachable LED filament, the lamp holder assembly also includes: a lamp holder mounting seat, one end of the lamp holder mounting seat is provided with a receiving groove, and the driving circuit board is received in the receiving groove; the bottom of the receiving groove is provided with a fixed through groove, one end of the translucent filament bracket is embedded and fixed in the fixed through groove, and the output power line connected to the driving circuit board extends into the fixed through groove and is electrically connected to the flexible LED filament.

[0011] As a preferred solution for the universal detachable LED filament, the inner wall of the fixed through groove is provided with a fixed protrusion, and the fixed protrusion is used to press against the surface of the translucent filament bracket to prevent the translucent filament bracket from escaping from the fixed through groove.

[0012] As a preferred solution for a universal detachable LED filament, limiting protrusions are provided on both sides of the inner wall of the accommodating groove, and limiting steps are provided at both ends of the driving circuit board. The limiting steps abut against the limiting protrusions to prevent the driving circuit board from approaching the bottom of the accommodating groove.

[0013] As a preferred solution for the universal detachable LED filament, a clearance groove is provided on the inner wall of the fixed groove close to the driving circuit board, and the clearance groove is used to prevent the output power line from rubbing against the inner wall of the fixed groove.

[0014] As a preferred solution for a universal detachable LED filament, the lamp holder assembly also includes: a lamp holder shell; an external thread is provided on the outer side of one end of the lamp holder mounting seat, and an internal thread is provided on one side of the inner wall of the lamp holder shell; the lamp holder shell is screwed to one end of the lamp holder mounting seat, and then the lamp holder shell is installed on one end of the lamp holder mounting seat; one end of the lamp holder mounting seat is also provided with a threading groove, and a power supply cord connected to the driving circuit board passes through the threading groove and is connected to one side of the inner wall of the lamp holder shell, and another power supply cord connected to the driving circuit board is electrically connected to the bottom of the inner wall of the lamp holder shell.

[0015] The present invention also provides a lamp, comprising: a lampshade, which also includes the universal detachable LED filament as described above; the lampshade is provided with an installation through-hole, after the lamp assembly of the universal detachable LED filament extends into the lampshade through the installation through-hole, the lamp head assembly can be detachably installed at the installation through-hole.

[0016] As a preferred solution of the lamp, the outer side of the other end of the lamp holder mounting seat is provided with an external thread, the inner side of the mounting through hole is provided with an internal thread, and the other end of the lamp holder mounting seat is screwed to the mounting through hole.

[0017] The beneficial effects of the present invention are:

[0018] The present invention proposes a universal detachable LED filament, comprising: a lamp holder assembly, and a light source assembly installed on the lamp holder assembly, the lamp holder assembly comprising: a driving circuit board, two output power lines extending from the driving circuit board are electrically connected to the light source assembly; wherein the light source assembly comprises: a flexible LED filament electrically connected to the driving circuit board through the output power lines, and a prefabricated translucent filament bracket wrapped around the outside of the flexible LED filament, the translucent filament bracket being made by 3D printing, and the power connection end of the translucent filament bracket being fixed to the lamp holder assembly; adopting the above scheme, since the translucent filament bracket is made by 3D printing, The flexible LED filament is made into any shape conveniently, and then the flexible LED filament is arranged in the light-transmitting filament bracket along the shape of the light-transmitting filament bracket, which not only reduces the length of the flexible LED filament and enriches the shape of the light-transmitting filament bracket, but also makes the flexible LED filament more firmly fixed, overcomes the disadvantages of using glue to fix the flexible LED filament wrapped around the support column in the traditional solution, making the shape of the support column relatively single, the use length of the flexible LED filament is long, the light output is uneven, and the flexible LED filament is not firmly fixed, which reduces the user experience, and is further conducive to the promotion of lamps. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, and all of them belong to the protection scope of the present invention, among which:

[0020] Figure 1 is a schematic diagram of the structure of the lamp proposed in the present invention;

[0021] Figure 2 yes Figure 1 A partial enlarged view of a cross-sectional view of the lamp shown;

[0022] Figure 3 yes Figure 1 An exploded schematic diagram of the light fixture shown;

[0023] Figure 4 yes Figure 3 A schematic diagram of the structure of a lampshade of the lamp shown;

[0024] Figure 5 yes Figure 3 A schematic diagram of the structure of a universal detachable LED filament of the lamp shown;

[0025] Figure 6 yes Figure 5 An exploded view of a universal removable LED filament of the lamp shown;

[0026] Figure 7 yes Figure 6 A schematic structural diagram of a filament support body of the lamp shown;

[0027] Figure 8 yes Figure 6 A schematic diagram of the structure of the bracket cover of the lamp shown;

[0028] Fig. 9 yes Figure 6 A schematic structural diagram of a lamp holder mounting base at an angle shown in the figure;

[0029] Fig.10 yes Fig. 9 A schematic structural diagram of the lamp holder mounting base of the lamp shown in another angle;

[0030] Fig.11 yes Figure 6 A schematic diagram of the structure of a driving circuit board of the lamp shown;

[0031] Fig.12 yes Figure 6 A schematic structural diagram of a lamp holder housing of a lamp is shown. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more related listed items. The terms "install", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connection" can also be a direct connection or an indirect connection through a medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances; the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0034] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] At present, with the increasing maturity of LED chip manufacturing and packaging technology, the cost of LED components has been greatly reduced, and LED lamps have been used more and more widely. In the field of LED lighting, the energy-saving and long-life advantages of LED lamps have been fully reflected. In particular, since the appearance of LED filament lamps is very similar to that of traditional incandescent lamps, more and more LED filament lamps are favored by consumers in the market.

[0036] Since the substrate of the flexible filament is made of flexible material, the flexible filament can be shaped arbitrarily, so traditional LED filament lamps mostly use flexible filaments. The wiring problem of the flexible filament can be solved by the flip-chip process. Although the flexible filament can be shaped arbitrarily, it is not fixed by itself. If you want to shape the flexible filament, you need to first use hard materials to pre-shape it as a support column, and then fix the flexible filament around the support column. The flexible filament is fixed to the support column mostly by glue; in order to make the lamp emit light in all directions, the support column is made of light-transmitting material.

[0037] However, since the flexible filament is wrapped and fixed on the supporting column, the length of the flexible filament is longer than that of the traditional incandescent lamp, which increases the manufacturing cost of the lamp. In addition, since it is fixed with glue, it is easy to become ineffective due to heat after long-term use, causing the flexible filament to become detached. Moreover, although the supporting column is made of translucent material and can transmit light, in general, the brightness of the outer side of the flexible filament is brighter than that of the side close to the supporting column, which makes the light output of the lamp uneven, reduces the user experience, and is not conducive to the promotion of the lamp.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the present invention provides a lamp, which includes: a lampshade 10, and a universal detachable LED filament 20 installed in the lampshade 10, the universal detachable LED filament 20 includes: a lamp head assembly 21, and a light source assembly 22 installed in the lamp head assembly 21, the lampshade 10 is provided with an installation through hole 11, after the lamp assembly of the universal detachable LED filament 20 extends into the lampshade 10 through the installation through hole 11, the lamp head assembly 21 can be detachably installed at the installation through hole 11.

[0039] In the present invention, the lampshade 10 can be a bulb-type lampshade 10, which is not limited to the present invention. The lampshade 10 can also be a lampshade 10 woven from rattan or a crystal lampshade 10 hollowed out in the middle, etc. The present invention does not limit this. Since the translucent filament bracket is formed by 3D printing, the translucent filament bracket can be hard or flexible, which can be selected according to actual conditions, and the present invention does not limit this.

[0040] Specifically, the lamp head assembly 21 includes: a driving circuit board 211, and two output power lines from the driving circuit board 211 are electrically connected to the light source assembly 22;

[0041] Among them, the light source assembly 22 includes: a flexible LED filament 221 electrically connected to the driving circuit board 211 through an output power line, and a prefabricated translucent filament bracket 222 wrapped around the outside of the flexible LED filament 221, the translucent filament bracket 222 is made by 3D printing, and the power connection end of the translucent filament bracket 222 is fixed to the lamp head assembly 21.

[0042] In the present invention, the above scheme is adopted. Since the translucent filament bracket 222 is made by 3D printing, it can be easily made into any shape. Then the flexible LED filament 221 is arranged in the translucent filament bracket 222 along the shape of the translucent filament bracket 222, which not only reduces the length of the flexible LED filament 221 and enriches the shape of the translucent filament bracket 222, but also makes the flexible LED filament 221 more firmly fixed, overcomes the traditional scheme of using the flexible LED filament 221 to wrap around the support column and fix it with glue, so that the shape of the support column is relatively simple, the flexible LED filament 221 has a long use length, uneven light output, and the flexible LED filament 221 is not firmly fixed, which reduces the user experience, and is further conducive to the promotion of lamps.

[0043] like Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12As shown, in order to install the flexible LED filament 221, the translucent filament bracket 222 includes: a filament bracket body 2221, and a bracket cover 2222; the filament bracket body 2221 is provided with a filament groove 22211 at a position corresponding to the flexible LED filament 221, the flexible LED filament 221 is embedded and fixed in the filament groove 22211, and the bracket cover 2222 is covered at the opening of the filament groove 22211 to seal the filament groove 22211; the bracket cover 2222 extends toward the filament bracket body 2221 to form a fixing boss 22221, and a fixing groove 22212 is provided at the opening of the filament groove 22211, and the fixing boss 22221 is embedded in the fixing groove 22212 and fixed, thereby fixing the bracket cover 2222 to the filament bracket body 2221.

[0044] In the present invention, the material of the light-transmitting filament bracket 222 is PETG, PC or PLA, which is not limited to the present invention. The material of the light-transmitting filament bracket 222 can achieve 3D printing shape, good heat dissipation performance and light transmission function, and the present invention does not limit this.

[0045] In order to install the driving circuit board 211, the lamp holder assembly 21 also includes: a lamp holder mounting seat 212, one end of the lamp holder mounting seat 212 is provided with a receiving groove 2121, and the driving circuit board 211 is accommodated in the receiving groove 2121; the bottom of the receiving groove 2121 is provided with a fixed through groove 21211, one end of the translucent filament bracket 222 is embedded and fixed in the fixed through groove 21211, and the output power line connected to the driving circuit board 211 extends into the fixed through groove 21211 and is electrically connected to the flexible LED filament 221, thereby installing the driving circuit board 211 in the lamp holder mounting seat 212.

[0046] In order to stabilize the installation of the light-transmitting filament bracket 222 , the inner wall of the fixing through groove 21211 is provided with a fixing protrusion 21212 , and the fixing protrusion 21212 is used to press against the surface of the light-transmitting filament bracket 222 to prevent the light-transmitting filament bracket 222 from escaping from the fixing through groove 21211 .

[0047] In order to prevent the lamp holder mounting base 212 from causing damage to the driving circuit board 211, limiting protrusions 21213 are provided on both sides of the inner wall of the accommodating groove 2121 at positions corresponding to the driving circuit board 211, and limiting steps 2111 are provided at both ends of the driving circuit board 211. The limiting steps 2111 abut against the limiting protrusions 21213 to prevent the driving circuit board 211 from approaching the bottom of the accommodating groove 2121.

[0048] In order to prevent the output power line connected to the driving circuit board 211 from being worn, a clearance groove 21214 is provided on the inner wall of the fixed groove 21211 close to the driving circuit board 211 , and the clearance groove 21214 is used to prevent the output power line from rubbing against the inner wall of the fixed groove 21211 .

[0049] In order to supply power to the driving circuit board 211, the lamp holder assembly 21 also includes: a lamp holder shell 213; an outer thread 2122 is provided on the outer side of one end of the lamp holder mounting seat 212, and an inner thread 2131 is provided on one side of the inner wall of the lamp holder shell 213, the lamp holder shell 213 is screwed to one end of the lamp holder mounting seat 212, and then the lamp holder shell 213 is installed on one end of the lamp holder mounting seat 212; one end of the lamp holder mounting seat 212 is also provided with a threading groove 2123, and a power supply line connected to the driving circuit board 211 passes through the threading groove 2123 and is connected to one side of the inner wall of the lamp holder shell 213, and another power supply line connected to the driving circuit board 211 is electrically connected to the bottom of the inner wall of the lamp holder shell 213, and then the lamp holder shell 213 supplies power to the driving circuit board 211.

[0050] In order to install the lamp holder assembly 21, an external thread 2124 is provided on the outer side of the other end of the lamp holder mounting seat 212, and an internal thread 111 is provided on the inner side of the mounting through hole 11. The other end of the lamp holder mounting seat 212 is screwed to the mounting through hole 11, thereby installing the lamp holder assembly 21 on the lampshade 10.

[0051] The present invention is described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A universal detachable LED filament, characterized in that: include: A lamp holder assembly, and a light source assembly mounted on the lamp holder assembly, wherein the lamp holder assembly comprises: a driving circuit board, two output power lines extending from the driving circuit board are electrically connected to the light source assembly; Among them, the light source assembly includes: a flexible LED filament electrically connected to the driving circuit board through an output power line, and a translucent filament bracket in a prefabricated shape wrapped around the outside of the flexible LED filament, the translucent filament bracket is made by 3D printing, and the power connection end of the translucent filament bracket is fixed to the lamp head assembly.

2. The universal detachable LED filament according to claim 1, characterized in that: The light-transmitting filament support comprises: a filament support body and a support cover plate; The filament support body is provided with a filament groove, the flexible LED filament is embedded and fixed in the filament groove, and the support cover is provided at the opening of the filament groove to seal the filament groove; The support cover is provided with a fixing boss, and the opening of the filament slot is provided with a fixing slot, and the fixing boss is embedded in the fixing slot for fixing.

3. The universal detachable LED filament according to claim 1, characterized in that: The material of the light-transmitting filament support is PETG, PC or PLA.

4. The universal detachable LED filament according to claim 2, characterized in that: The lamp holder assembly further comprises: a lamp holder mounting seat, one end of which is provided with a receiving groove, and the driving circuit board is received in the receiving groove; A fixed through groove is provided at the bottom of the accommodating groove, one end of the light-transmitting filament bracket is embedded and fixed in the fixed through groove, and the output power line connected to the driving circuit board extends into the fixed through groove and is electrically connected to the flexible LED filament.

5. The universal detachable LED filament according to claim 4, characterized in that: The inner wall of the fixed through groove is provided with a fixed protrusion, and the fixed protrusion is used to press against the surface of the light-transmitting filament support to prevent the light-transmitting filament support from escaping from the fixed through groove.

6. The universal detachable LED filament according to claim 4, characterized in that: Limiting protrusions are arranged on both sides of the inner wall of the containing groove, and limiting steps are arranged at both ends of the driving circuit board. The limiting steps abut against the limiting protrusions to prevent the driving circuit board from approaching the bottom of the containing groove.

7. The universal detachable LED filament according to claim 4, characterized in that: A clearance groove is provided on the inner wall of the fixed through-groove near the driving circuit board, and the clearance groove is used to prevent the output power line from rubbing against the inner wall of the fixed through-groove.

8. The universal detachable LED filament according to claim 4, characterized in that: The lamp holder assembly further comprises: a lamp holder housing; An outer side of one end of the lamp holder mounting seat is provided with an external thread, and one side of the inner wall of the lamp holder shell is provided with an internal thread, and the lamp holder shell is screwed to one end of the lamp holder mounting seat, so that the lamp holder shell is installed on one end of the lamp holder mounting seat; One end of the lamp holder mounting base is also provided with a wire threading groove, and a power supply line connected to the driving circuit board passes through the wire threading groove and is connected to one side of the inner wall of the lamp holder housing, and another power supply line connected to the driving circuit board is electrically connected to the bottom of the inner wall of the lamp holder housing.

9. A lamp, comprising: The lampshade is characterized in that it also includes the universal detachable LED filament according to any one of claims 4 to 8; The lampshade is provided with an installation through-hole. After the lamp assembly of the universal detachable LED filament extends into the lampshade through the installation through-hole, the lamp head assembly can be detachably installed at the installation through-hole.

10. The lamp according to claim 9, characterized in that The outer side of the other end of the lamp holder mounting seat is provided with an external thread, the inner side of the mounting through hole is provided with an internal thread, and the other end of the lamp holder mounting seat is screwed to the mounting through hole.

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