Universal light-emitting module with detachable LED lamp filaments and lamp

Abstract

The utility model provides a general type detachable LED filament luminous module and lamp, it includes: lamp holder subassembly and install light source subassembly in the lamp holder subassembly, the lamp holder subassembly includes: drive circuit board, the drive circuit board connects two output power cord with the light source subassembly electrically connection, the drive circuit board is connected with the light source subassembly, the output power cord is electrically connected with the light source subassembly, and the output power cord is electrically connected with the light source subassembly. 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 utility model belongs to the technical field of LED lighting fixtures, and particularly relates to a lighting module and a lamp with a general-purpose detachable LED filament. Background Art

[0002] At present, with the increasing maturity of LED chip manufacturing and packaging technologies, the cost of LED components has been greatly reduced, and LED lamps have been more and more widely used. In the field of LED lighting, the energy-saving and long-life advantages of LED lamps have been fully demonstrated. In particular, since LED filament lamps are very similar in appearance to 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 a flexible material, the flexible filament can be shaped arbitrarily. Therefore, 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 does not have fixity itself. To shape the flexible filament, a hard material needs to be used to pre-shape it as a support column first, and then the flexible filament is wound and fixed on the support column. The flexible filament is mostly fixed to the support column by glue; in order to enable the lamp to emit light in all directions, the support column is made of a light-transmitting material.

[0004] However, since the flexible filament is wound and fixed on the support column, the length of the flexible filament is longer than that of the filament of a traditional incandescent lamp, which increases the manufacturing cost of the lamp. Moreover, since glue is used for fixing, it is easily heated during long-term use, which may cause the glue to fail and the flexible filament to become detached; furthermore, although the support column made of a light-transmitting material can transmit light, generally speaking, the brightness on the outer side of the flexible filament is brighter than that on the side close to the support column, resulting in uneven light output of the lamp, reducing the user experience, and being not conducive to the popularization of the lamp. Content of the Utility Model

[0005] The main purpose of the present utility model is to provide a general-purpose detachable LED filament lighting module and a lamp. Among them, the light source assembly includes: a flexible LED filament electrically connected to the driving circuit board through an output power cord, and a light-transmitting filament bracket with a prefabricated shape covering the outside of the flexible LED filament. The light-transmitting filament bracket is made by 3D printing, and the power connection end of the light-transmitting filament bracket is fixed to the lamp head assembly. With the above solution, since the light-transmitting 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 light-transmitting filament bracket along the shape of the light-transmitting filament bracket, which not only enriches the shape of the light-transmitting filament bracket, reduces the length of the flexible LED filament, but also makes the fixation of the flexible LED filament more firm, overcoming the disadvantages in the traditional solution where the flexible LED filament is wound around the support column and fixed with glue, resulting in a relatively single shape of the support column, a longer use length of the flexible LED filament, uneven light output, and insecure fixation of the flexible LED filament, thus reducing the user experience, and further facilitating the popularization of the lamp.

[0006] To solve the above technical problems, the present utility model provides the following technical solutions:

[0007] A general-purpose detachable LED filament lighting module, which includes: a lamp head assembly and a light source assembly installed on the lamp head assembly. The lamp head assembly includes: a driving circuit board, and two output power cords are led out from the driving circuit board and 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 cord, and a light-transmitting filament bracket with a prefabricated shape covering the outside of the flexible LED filament. The light-transmitting filament bracket is made by 3D printing, and the power connection end of the light-transmitting filament bracket is fixed to the lamp head assembly.

[0008] As a preferred solution of the general-purpose detachable LED filament lighting module, the light-transmitting filament bracket includes: a filament bracket body and a bracket cover plate. 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 plate is covered on the opening of the filament groove to seal the filament groove. The bracket cover plate is provided with a fixing convex column, and a fixing groove is provided at the opening of the filament groove, and the fixing convex column is embedded in the fixing groove for fixation.

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

[0010] As a preferred embodiment of the light-emitting module with a universal detachable LED filament, the lamp head assembly further includes: a lamp head mounting base, one end of the lamp head mounting base is provided with a receiving groove, and the driving circuit board is received in the receiving groove; a fixing through groove is provided at the bottom of the receiving groove, one end of the transparent lamp filament bracket is embedded and fixed in the fixing through groove, and the output power supply line led out from the driving circuit board extends into the fixing through groove and is electrically connected to the flexible LED filament.

[0011] As a preferred embodiment of the light-emitting module with a universal detachable LED filament, the inner wall of the fixing through groove is provided with fixing protrusions, and the fixing protrusions are used to press against the surface of the transparent lamp filament bracket to prevent the transparent lamp filament bracket from disengaging from the fixing through groove.

[0012] As a preferred embodiment of the light-emitting module with a universal detachable LED filament, two sides of the inner wall of the receiving groove are provided with limiting protrusions, and two ends of the driving circuit board are provided with limiting steps, and the limiting steps abut against the limiting protrusions to prevent the driving circuit board from approaching the bottom of the receiving groove.

[0013] As a preferred embodiment of the light-emitting module with a universal detachable LED filament, the inner wall of the fixing through groove on the side close to the driving circuit board is provided with a relief groove, and the relief groove is used to prevent the output power supply line from rubbing against the inner wall of the fixing through groove.

[0014] As a preferred embodiment of the light-emitting module with a universal detachable LED filament, the lamp head assembly further includes: a lamp head housing; an external thread is provided on the outer side of one end of the lamp head mounting base, an internal thread is provided on one side of the inner wall of the lamp head housing, and the lamp head housing is screwed to one end of the lamp head mounting base, thereby mounting the lamp head housing on one end of the lamp head mounting base; a wire passing groove is further provided at one end of the lamp head mounting base, and a power supply connecting wire led out from the driving circuit board passes through the wire passing groove and is connected to one side of the inner wall of the lamp head housing, and another power supply connecting wire led out from the driving circuit board is electrically connected to the bottom of the inner wall of the lamp head housing.

[0015] The present invention further provides a lighting fixture, including: a lamp shade, which further includes the light-emitting module with a universal detachable LED filament as described above; the lamp shade is provided with a mounting through hole, after the lamp head assembly of the light-emitting module with a universal detachable LED filament extends into the lamp shade through the mounting through hole, the lamp head assembly is detachably mounted at the mounting through hole.

[0016] As a preferred embodiment of the lighting fixture, an external thread is provided on the outer side of the other end of the lamp head mounting base, an internal thread is provided on the inner side of the mounting through hole, and the other end of the lamp head mounting base is screwed to the mounting through hole.

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

[0018] In the present utility model, a lighting module and a lamp with a universal detachable LED filament are proposed, including: a lamp head assembly and a light source assembly installed on the lamp head assembly. The lamp head assembly includes: a driving circuit board, and two output power supply lines are led out from the driving circuit board and 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 the output power supply line, and a light-transmitting filament bracket in a prefabricated shape covering the outside of the flexible LED filament. The light-transmitting filament bracket is made by 3D printing, and the power connection end of the light-transmitting filament bracket is fixed to the lamp head assembly. With the above scheme, since the light-transmitting 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 light-transmitting filament bracket along the shape of the light-transmitting filament bracket, which not only reduces the length of the flexible LED filament, enriches the shape of the light-transmitting filament bracket, but also makes the fixation of the flexible LED filament more firm, overcoming the disadvantages in the traditional scheme where the flexible LED filament is wound around the support column and fixed with glue, resulting in a relatively single shape of the support column, a longer use length of the flexible LED filament, uneven light emission, and insecure fixation of the flexible LED filament, thus reducing the user experience. Further, it is conducive to the popularization of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, and all belong to the protection scope of the present utility model, where:

[0020] Figure 1 is a schematic structural diagram of the lamp proposed in the present utility model;

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

[0022] Figure 3 is Figure 1 an exploded schematic diagram of the lamp shown;

[0023] Figure 4 is Figure 3 a schematic structural diagram of the lamp shade of the lamp shown;

[0024] Figure 5 is Figure 3 a schematic structural diagram of the lighting module with a universal detachable LED filament of the lamp shown;

[0025] Figure 6 is Figure 5Explosion schematic diagram of the light-emitting module of the general-purpose detachable LED filament of the shown lamp;

[0026] Figure 7 is Figure 6 Structural schematic diagram of the filament support body of the shown lamp;

[0027] Figure 8 is Figure 6 Structural schematic diagram of the support cover plate of the shown lamp;

[0028] Figure 9 is Figure 6 Structural schematic diagram of the lamp head mounting seat of the shown lamp at one angle;

[0029] Figure 10 is Figure 9 Structural schematic diagram of the lamp head mounting seat of the shown lamp at another angle;

[0030] Figure 11 is Figure 6 Structural schematic diagram of the drive circuit board of the shown lamp;

[0031] Figure 12 is Figure 6 Structural schematic diagram of the lamp head housing of the shown lamp. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the present invention, the term "a plurality" refers to two or more, unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. Terms such as "installation", "connection", "connection", "fixation" 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 specific situations; the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manners.

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

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

[0036] Since the substrate of the flexible filament uses a flexible material, the flexible filament can be arbitrarily shaped. Therefore, 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 arbitrarily shaped, it does not have fixity itself. To shape the flexible filament, a hard material needs to be used in advance to make a shape as a support column, and then the flexible filament is wound and fixed on the support column. The flexible filament is mostly fixed to the support column by glue; in order to enable the lamp to emit light in all directions, the support column uses a light-transmitting material.

[0037] However, since the flexible filament is wound and fixed on the support column, the length of the flexible filament is longer than that of the filament of a traditional incandescent lamp, which increases the manufacturing cost of the lamp. Moreover, since glue is used for fixing, it is easily heated during long-term use, which may cause the glue to fail and the flexible filament to become detached; furthermore, although the support column uses a light-transmitting material to transmit light, generally speaking, the brightness on the outer side of the flexible filament is brighter than that on the side close to the support column, resulting in uneven light output of the lamp and reducing the user experience, which is not conducive to the popularization of the lamp.

[0038] As Figure 1 、 Figure 2 and Figure 3 shown, an embodiment of the present utility model provides a lamp, which includes: a lamp shade 10 and a light-emitting module 20 of a general-purpose detachable LED filament installed in the lamp shade 10. The light-emitting module 20 of the general-purpose detachable LED filament includes: a lamp head assembly 21 and a light source assembly 22 installed on the lamp head assembly 21. The lamp shade 10 is provided with an installation through hole 11. After the lamp assembly of the light-emitting module 20 of the general-purpose detachable LED filament extends into the lamp shade 10 through the installation through hole 11, the lamp head assembly 21 is detachably installed at the installation through hole 11.

[0039] In the present utility model, the lamp shade 10 can be a bulb-shaped lamp shade 10, but is not limited thereto. The lamp shade 10 can also be a lamp shade 10 woven from rattan or a crystal lamp shade 10 with a hollow middle, etc. The present utility model does not limit this; since the transparent filament support is made by 3D printing, the transparent filament support can be rigid or flexible and can be selected according to the actual situation. The present utility model does not limit this.

[0040] Specifically, the lamp head assembly 21 includes: a drive circuit board 211, and two output power supply lines are led out from the drive circuit board 211 and 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 drive circuit board 211 through an output power supply line, and a transparent filament support 222 coated on the outer side of the flexible LED filament 221 in a prefabricated shape. The transparent filament support 222 is made by 3D printing, and the power connection end of the transparent filament support 222 is fixed to the lamp head assembly 21.

[0042] In the present utility model, adopting the above scheme, since the transparent filament support 222 is made by 3D printing, it can be easily made into any shape, and then the flexible LED filament 221 is arranged in the transparent filament support 222 along the shape of the transparent filament support 222. This not only reduces the length of the flexible LED filament 221, enriches the shape of the transparent filament support 222, but also makes the fixing of the flexible LED filament 221 more firm, overcoming the disadvantages in the traditional scheme where the flexible LED filament 221 is wound around the support column and fixed with glue, resulting in a relatively single shape of the support column, a longer use length of the flexible LED filament 221, uneven light emission, and insecure fixing of the flexible LED filament 221, which reduces the user experience. This further facilitates the popularization of the lamp.

[0043] Such as Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12As shown, in order to install the flexible LED filament 221, the light-transmitting filament bracket 222 includes: a filament bracket body 2221 and a bracket cover plate 2222; a filament groove 22211 is provided at a position corresponding to the flexible LED filament 221 on the filament bracket body 2221, the flexible LED filament 221 is embedded and fixed in the filament groove 22211, and the bracket cover plate 2222 is covered at the opening of the filament groove 22211 to seal the filament groove 22211; a fixing convex column 22221 extends from the bracket cover plate 2222 towards the filament bracket body 2221, a fixing groove 22212 is provided at the opening of the filament groove 22211, and the fixing convex column 22221 is embedded in the fixing groove 22212 for fixing, thereby fixing the bracket cover plate 2222 to the filament bracket body 2221.

[0044] In the present utility model, the material of the light-transmitting filament bracket 222 is PETG, PC or PLA. Without being limited to the present utility model, the material of the light-transmitting filament bracket 222 can achieve a 3D printed shape, good heat dissipation performance and light-transmitting function. The present utility model does not make any limitations in this regard.

[0045] In order to install the drive circuit board 211, the lamp head assembly 21 further includes: a lamp head mounting seat 212, a receiving groove 2121 is provided at one end of the lamp head mounting seat 212, and the drive circuit board 211 is received in the receiving groove 2121; a fixing through groove 21211 is provided at the bottom of the receiving groove 2121, one end of the light-transmitting filament bracket 222 is embedded and fixed in the fixing through groove 21211, and the output power supply wire led out from the drive circuit board 211 extends into the fixing through groove 21211 to be electrically connected to the flexible LED filament 221, thereby installing the drive circuit board 211 in the lamp head mounting seat 212.

[0046] In order to stabilize the installation of the light-transmitting filament bracket 222, fixing protrusions 21212 are provided on the inner wall of the fixing through groove 21211, and the fixing protrusions 21212 are used to abut against the surface of the light-transmitting filament bracket 222 to prevent the light-transmitting filament bracket 222 from slipping out of the fixing through groove 21211.

[0047] In order to prevent the lamp head mounting seat 212 from damaging the drive circuit board 211, limiting protrusions 21213 are provided on both sides of the inner wall of the receiving groove 2121 at positions corresponding to the drive circuit board 211, and limiting steps 2111 are provided at both ends of the drive circuit board 211. The limiting steps 2111 abut against the limiting protrusions 21213 to prevent the drive circuit board 211 from approaching the bottom of the receiving groove 2121.

[0048] To avoid wear and tear caused by the output power supply line connected to the driving circuit board 211, a relief groove 21214 is provided on the inner wall of the fixed through groove 21211 close to the driving circuit board 211. The relief groove 21214 is used to prevent the output power supply line from rubbing against the inner wall of the fixed through groove 21211.

[0049] To supply power to the driving circuit board 211, the lamp head assembly 21 further includes: a lamp head housing 213; an external thread 2122 is provided on the outer side of one end of the lamp head mounting seat 212, and an internal thread 2131 is provided on one side of the inner wall of the lamp head housing 213. The lamp head housing 213 is screwed to one end of the lamp head mounting seat 212, thereby mounting the lamp head housing 213 on one end of the lamp head mounting seat 212; a wire passing groove 2123 is further provided at one end of the lamp head mounting seat 212. A power supply connecting wire led out from the driving circuit board 211 passes through the wire passing groove 2123 and is connected to one side of the inner wall of the lamp head housing 213. Another power supply connecting wire led out from the driving circuit board 211 is electrically connected to the bottom of the inner wall of the lamp head housing 213. Thus, the lamp head housing 213 supplies power to the driving circuit board 211.

[0050] To install the lamp head assembly 21, an external thread 2124 is provided on the outer side of the other end of the lamp head 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 head mounting seat 212 is screwed to the mounting through hole 11, thereby mounting the lamp head assembly 21 on the lamp cover 10.

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

Claims

1. A general-purpose detachable LED filament lighting module, characterized in that, Comprising: A lamp head assembly and a light source assembly installed on the lamp head assembly. The lamp head assembly includes a driving circuit board, and two output power supply lines are led out from the driving circuit board and electrically connected to the light source assembly. Wherein, the light source assembly includes a flexible LED filament electrically connected to the driving circuit board through an output power supply line, and a light-transmitting filament bracket in a prefabricated shape covering the outside of the flexible LED filament. The light-transmitting filament bracket is made by 3D printing, and the power connection end of the light-transmitting filament bracket is fixed to the lamp head assembly.

2. The light-emitting module of the general-purpose detachable LED filament according to claim 1, wherein The light-transmitting filament bracket includes a filament bracket body and a bracket cover plate. 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 plate is covered at the opening of the filament groove to seal the filament groove. The bracket cover plate is provided with fixing convex columns, and fixing grooves are provided at the opening of the filament groove. The fixing convex columns are embedded in the fixing grooves for fixation.

3. The light-emitting module of the general-purpose detachable LED filament according to claim 1, characterized in that, The material of the light-transmitting filament bracket is PETG, PC or PLA.

4. The light-emitting module of the universal detachable LED filament according to claim 2, characterized in that, The lamp head assembly further includes a lamp head mounting seat. One end of the lamp head mounting seat is provided with a receiving groove, and the driving circuit board is received in the receiving groove. A fixing through groove is provided at the bottom of the receiving groove. One end of the light-transmitting filament bracket is embedded and fixed in the fixing through groove, and the output power supply line led out from the driving circuit board extends into the fixing through groove and is electrically connected to the flexible LED filament.

5. The light-emitting module of the general-purpose detachable LED filament according to claim 4, characterized in that, Fixing protrusions are provided on the inner wall of the fixing through groove. The fixing protrusions are used to press against the surface of the light-transmitting filament bracket to prevent the light-transmitting filament bracket from disengaging from the fixing through groove.

6. The light-emitting module of the general-purpose detachable LED filament according to claim 4, characterized in that, Limiting protrusions are provided on both sides of the inner wall of the receiving 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 receiving groove.

7. The light-emitting module of the general-purpose detachable LED filament according to claim 4, characterized in that, A relief groove is provided on the inner wall of the fixing through groove on the side close to the driving circuit board. The relief groove is used to prevent the output power supply line from rubbing against the inner wall of the fixing through groove.

8. The light-emitting module of the general-purpose detachable LED filament according to claim 4, characterized in that, The lamp head assembly further includes a lamp head housing. External threads are provided on the outer side of one end of the lamp head mounting seat, and internal threads are provided on one side of the inner wall of the lamp head housing. The lamp head housing is screwed to one end of the lamp head mounting seat, and thus the lamp head housing is installed on one end of the lamp head mounting seat. A wire passing groove is further provided at one end of the lamp head mounting seat. One of the power supply wires led out from the driving circuit board passes through the wire passing groove and is connected to one side of the inner wall of the lamp head housing, and the other power supply wire led out from the driving circuit board is electrically connected to the bottom of the inner wall of the lamp head housing.

9. A lighting fixture, comprising: A lamp shade, characterized in that it further includes a light-emitting module with a universal detachable LED filament as described in any one of claims 4-8. The lamp shade is provided with an installation through hole. After the lamp head assembly of the light-emitting module with the universal detachable LED filament extends into the lamp shade through the installation through hole, the lamp head assembly is detachably installed at the installation through hole.

10. The luminaire according to claim 9, characterized in that, External threads are provided on the outer side of the other end of the lamp head mounting seat, and internal threads are provided on the inner side of the installation through hole. The other end of the lamp head mounting seat is screwed to the installation through hole.

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