CN219606785U - Multisection filament and bulb - Google Patents

Abstract

The utility model discloses a multi-section filament and bulb, which comprises a bracket and a plurality of LED chips arranged on the bracket; the support comprises a plurality of plate bodies, and two adjacent plate bodies are connected through a middle pin; the outer end of the plate body at the end part of the bracket is provided with a conductive pin; the adjacent LED chips and the bracket are electrically connected through conductive connecting wires; the plate body is also provided with a first covering adhesive layer; the multi-section filament and the bulb are connected with two adjacent plate bodies through the middle pins, so that the electrical communication between the two adjacent plate bodies is realized; the characteristic that the multi-section filament can be bent is realized through the middle pins connected among the plurality of plate bodies, so that the multi-section filament can be bent to form a solid structure, the heat dissipation effect is better, and the multi-section filament can be ensured to continuously run in a better state; through covering the glue film, better light that sends out of LED chip, guarantee better luminous effect.

Description

Multisection filament and bulb

Technical Field

The utility model relates to the technical field of bulbs, in particular to a multi-section filament and a bulb.

Background

LED (Light Emitting Diode) a light emitting diode is a solid state semiconductor device capable of converting electrical energy into visible light, which can directly convert electricity into light. The appearance of LED lamp has energy-conservation, long service life, suitability are good, response time is short, advantage such as environmental protection for ordinary lamp (incandescent lamp etc.), and the LED lamp can divide into according to different structures again: bulb lamp, spot lamp, fluorescent lamp, filament lamp, etc.

The filament type LED lamp is short for filament lamp, takes the appearance of the traditional bulb, takes the LED light-emitting modules (namely LED filaments) such as long strips, flat strips, discs and the like as a light source, not only maintains the simple antique style of the traditional bulb, but also adopts the current popular LED light-emitting scheme to replace the traditional tungsten filament bulb with large energy consumption, so that the filament type LED lamp becomes a novel energy-saving long-service-life light source.

However, the substrate of the LED straight filament lamp is usually in a straight line shape, and is made of rigid materials such as glass, ceramic, sapphire, and the like, through die bonding, bonding wires, and sealing. Each LED linear filament is obliquely arranged on the glass core column inwards to form a frustum shape or a fence shape. The bulb is limited by the size of the bulb seal, the head and tail welding positions of the filament are concentrated, and the problems of large heat productivity and difficult heat dissipation exist, so that the luminous efficiency and the luminous intensity cannot reach the best; and because the filaments are basically arranged in the vertical direction, the luminous intensity of the LED bulb is mainly distributed along the longitudinal direction of the substrate, so that the LED bulb is uneven in luminous and cannot exhibit the spherical luminous effect.

Based on the above situation, the utility model provides a multi-section filament and a bulb, which can effectively solve one or more of the above problems.

Disclosure of Invention

The utility model aims to provide a multi-section filament and a bulb.

The utility model is realized by the following technical scheme:

a multi-section filament comprises a bracket and a plurality of LED chips arranged on the bracket; the support comprises a plurality of plate bodies, and two adjacent plate bodies are connected through a middle pin; the outer end of the plate body at the end part of the bracket is provided with a conductive pin; the adjacent LED chips and the bracket are electrically connected through conductive connecting wires; the plate body is also provided with a first covering glue layer.

Preferably, a second covering glue layer is arranged on the middle pin.

Preferably, two ends of the second covering glue layer are connected with the first covering glue layer.

Preferably, a pliable part is arranged in the middle of the second covering adhesive layer.

Preferably, the shape of the pliable portion is V-shaped, linear or semicircular.

Preferably, the depth of the pliable portion is 0.2 to 0.6 times the thickness of the second coverlay.

Preferably, the width of the opening of the pliable portion is 0.3 to 0.7 times of the distance between two adjacent plate bodies.

A bulb comprises a lamp cap, a bulb shell, a core column forming a sealed cavity with the bulb shell, a conductive support fixed on the core column and a plurality of sections of filaments according to the plurality of sections of filaments, wherein the plurality of sections of filaments are electrically connected and conducted on the conductive support.

Preferably, each two adjacent plate bodies form a plane, and the included angle between each two adjacent planes is 30-150 degrees.

Preferably, the included angles between every two adjacent planes are equal.

Compared with the prior art, the utility model has the following advantages:

the multi-section filament and the bulb are connected with two adjacent plate bodies through the middle pins, so that the electrical communication between the two adjacent plate bodies is realized; the characteristic that the multi-section filament can be bent is realized through the middle pins connected among the plurality of plate bodies, so that the multi-section filament can be bent to form a solid structure, the heat dissipation effect is better, and the multi-section filament can be ensured to continuously run in a better state; through covering the glue film, better light that sends out of LED chip, guarantee better luminous effect.

Drawings

Fig. 1 is a schematic view of a filament with a V-shape in the pliable portion in embodiment 1 of the present utility model;

fig. 2 is a schematic structural view of a filament with a semicircular shape of the pliable portion in embodiment 1 of the present utility model;

FIG. 3 is a schematic structural diagram of embodiment 2 of the present utility model;

FIG. 4 is a schematic structural diagram of embodiment 2 of the present utility model;

FIG. 5 is a schematic structural diagram of embodiment 2 of the present utility model;

FIG. 6 is a schematic structural diagram of embodiment 2 of the present utility model;

FIG. 7 is a schematic structural diagram of embodiment 2 of the present utility model;

FIG. 8 is a schematic structural diagram of embodiment 2 of the present utility model;

FIG. 9 is a schematic diagram of the structure of embodiment 2 of the present utility model;

FIG. 10 is a schematic structural diagram of embodiment 2 of the present utility model;

FIG. 11 is a schematic structural view of embodiment 2 of the present utility model;

fig. 12 is a schematic structural diagram of embodiment 2 of the present utility model.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present utility model, preferred embodiments of the present utility model will be described below with reference to specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.

Example 1:

as shown in fig. 1 and 2, the present utility model provides a multi-section filament, comprising a support 1 and a plurality of LED chips mounted on the support 1; the bracket 1 comprises a plurality of plate bodies 11, and two adjacent plate bodies 11 are connected through a middle pin 12; the outer ends of the plate bodies 11 at the two ends of the bracket 1 are respectively provided with a conductive pin 13; the adjacent LED chips are electrically connected with the bracket 1 through conductive connecting wires; the plate 11 is further provided with a first glue layer 14.

The utility model connects two adjacent plate bodies 11 through the middle pin 12 to realize the electric communication between the two adjacent plate bodies 11; the characteristic that the multi-section filament can be bent is realized through the middle pins 12 connected between the plurality of plate bodies 11, so that the multi-section filament 10 can be bent into a solid structure conveniently, the heat dissipation effect is better, and the multi-section filament can be ensured to continuously run in a better state; by covering the glue layer 14, the light emitted by the LED chip is better dispersed, ensuring a better lighting effect.

Further, in another embodiment, a second coverlay 15 is provided on the intermediate leg 12. The second coverlay 15 and the first coverlay 14 may be of unitary construction and may be formed from the same material by one application.

Further, in another embodiment, two conductive pins may be disposed only at the outer end of the board 11 at one end of the bracket 1, and the LED chip is connected to a circuit through a wire, and then the conductive pins at one end of the bracket are connected to a power supply, so that the LED chip can be powered on to emit light.

Through the second covering glue layer 15, the air-insulating function is better played for the middle pipe pin 12, and the corrosion of the air to the second covering glue layer 15 is reduced.

Further, in another embodiment, both ends of the second coverlay 15 are connected to the first coverlay 14.

The two ends of the second covering glue layer 15 are connected with the first covering glue layer 14, and the second covering glue layer 15 can also disperse the light emitted by the LED chip, so that the emitted light is more uniform, and the light emitting effect of the multi-section filament is improved.

Further, in another embodiment, a pliable portion 16 is provided in the middle of the second cover adhesive layer 15. The arrangement of the pliable part is helpful for bending the multi-section filament.

Further, in another embodiment, the pliable portion 16 is V-shaped, in-line, or semi-circular in shape. The straight-shaped pliable part can be a slit or a kerf, the process is simpler and more convenient, and no leftover materials are produced.

The V-shaped pliable part 16 is adopted, so that the bending is convenient, and the bending angle is limited in the angle of the vertex angle of the V shape.

The semicircular flexible part 16 is convenient to bend, the limitation on the bending angle is small, and the flexible part 16 is internally provided with an arc surface, so that the phenomenon of tearing after bending is difficult to occur.

Further, in another embodiment, the depth of the pliable portion 16 is 0.2 to 0.6 times the thickness of the second coverlay 15; ensuring that the pliable portion 16 does not interfere with the function of the second coverlay 15.

Further, in another embodiment, the width of the opening of the pliable portion 16 is 0.3 to 0.7 times the spacing between the adjacent two plate bodies 11; ensuring that the pliable portion 16 does not interfere with the function of the second coverlay 15.

Example 2:

as shown in fig. 3 to 12, the present utility model provides a bulb, which comprises a lamp cap 2, a bulb shell 3, a stem 4 forming a sealed cavity with the bulb shell 3, a conductive support 5 fixed on the stem 4, and a multi-section filament 10 according to embodiment 1, wherein the multi-section filament 10 is electrically connected and conducted on the conductive support 5, and the multi-section filament can be formed into various shapes after being bent, so as to produce various types of bulb products. The sealed cavity in the bulb shell 3 is filled with a heat conducting medium, the heat conducting medium is gas, liquid or colloid, preferably gas, and the gas is helium, neon, argon, krypton or xenon and other high-heat-conductivity low-viscosity gas.

Further, in another embodiment, each two adjacent plate bodies 11 form a plane, and the included angle between each two adjacent planes is 30-150 °.

Further, in another embodiment, the included angle between each two adjacent planes is equal.

The multi-segment filament and bulb of the present utility model can be easily manufactured or used by those skilled in the art based on the description of the present utility model and the accompanying drawings, and can produce the positive effects described in the present utility model.

Unless specifically stated otherwise, in the present utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the positional relationship indicated is based on the positional relationship indicated in the drawings, and is merely for convenience of describing the present utility model and simplifying the description, and it is not necessary to indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationship in the present utility model are merely for exemplary illustration and should not be construed as limitations of the present patent, and it is possible for those skilled in the art to understand the specific meaning of the above terms in conjunction with the drawings and according to the specific circumstances.

Unless specifically stated or limited otherwise, the terms "disposed," "connected," and "connected" herein are to be construed broadly, e.g., they may be fixed, removable, or integral; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variation, etc. of the above embodiment according to the technical matter of the present utility model fall within the scope of the present utility model.

Claims (10)

1. A multi-section filament, characterized in that: comprises a bracket (1) and a plurality of LED chips arranged on the bracket (1); the bracket (1) comprises a plurality of plate bodies (11), and two adjacent plate bodies (11) are connected through an intermediate pin (12); the outer end of the plate body (11) at the end part of the bracket is provided with a conductive pin (13); the adjacent LED chips and the bracket (1) are electrically connected through conductive connecting wires; the plate body (11) is also provided with a first covering adhesive layer (14).

2. The multi-segment filament of claim 1, wherein: and a second covering glue layer (15) is arranged on the middle pin (12).

3. The multi-segment filament of claim 2, wherein: and two ends of the second covering glue layer (15) are connected with the first covering glue layer (14).

4. The multi-segment filament of claim 2, wherein: and a pliable part (16) is arranged in the middle of the second covering adhesive layer (15).

5. The multi-segment filament of claim 4, wherein: the pliable portion (16) is V-shaped, in-line or semi-circular in shape.

6. The multi-segment filament of claim 4, wherein: the depth of the pliable portion (16) is 0.2 to 0.6 times the thickness of the second covering adhesive layer (15).

7. The multi-segment filament of claim 4, wherein: the width of the opening of the flexible part (16) is 0.3 to 0.7 times of the distance between two adjacent plate bodies (11).

8. A bulb, characterized in that: comprises a lamp cap (2), a bulb shell (3), a stem (4) forming a sealed cavity with the bulb shell (3), a conductive bracket (5) fixed on the stem (4) and a plurality of sections of filaments according to any one of claims 1 to 7, wherein the plurality of sections of filaments are electrically connected and conducted on the conductive bracket (5).

9. The bulb as set forth in claim 8, wherein: every two adjacent plate bodies (11) form a plane, and the included angle between every two adjacent planes is 30-150 degrees.

10. A light bulb as claimed in claim 9, characterized in that: the included angles between every two adjacent planes are equal.