CN209991228U

CN209991228U - Filament lamp

Info

Publication number: CN209991228U
Application number: CN201920927765.8U
Authority: CN
Inventors: 曹亮亮; 黄雨欣
Original assignee: Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Current assignee: Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-01-24
Anticipated expiration: 2029-06-19

Abstract

The utility model is suitable for a lighting apparatus technical field provides a filament lamp, and it includes bubble casing, light source subassembly, heat-sink, drive power supply and lamp holder. Wherein, one end of the bulb shell is provided with an opening; the light source component is arranged in the bulb shell; the heat dissipation piece is connected with one end of the bulb shell with an opening; the driving power supply is arranged in the heat dissipation piece and is electrically connected with the light source component; the lamp holder is connected with the heat dissipation part and electrically connected with the light source component. The light source assembly comprises a plurality of light-emitting strips and a bracket for fixing the light-emitting strips, and the foam shell and the bracket are fired and sealed in a sealing manner; the bulb shell, the heat dissipation piece and the lamp holder are surrounded to form a sealed space filled with heat dissipation gas. The lamp filament structure of the utility model realizes the waterproof of the luminous strip by firing the bulb shell and the bracket to seal the sealing strip; enclose bubble casing, radiating piece and lamp holder and establish the confined space that forms to fill the heat dissipation gas to combine the heat dissipation of radiating piece, make the heat dispersion of whole filament lamp better, and then can promote power.

Description

Filament lamp

Technical Field

The utility model relates to a lighting apparatus technical field, more specifically say, relate to a filament lamp.

Background

The LED filament lamp not only has the advantages of energy conservation, environmental protection and long service life of the LED lamp, but also has the appearance of the traditional incandescent lamp, and is popular with consumers due to the characteristics.

However, the existing LED filament lamp has the problems of low brightness and low power, and cannot replace a lamp with higher power, and a high-power lamp generally does not have waterproof performance, and moreover, the LED filament lamp needs to be designed with a complicated structure to cause higher overall cost.

Therefore, it is desirable to provide a filament lamp which can satisfy the requirements of high brightness, high power and waterproof performance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a filament lamp aims at solving current filament lamp luminance low and power low to and do not possess waterproof performance's technical problem.

In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a filament lamp comprising:

a bubble housing having an opening at one end;

the light source component is arranged in the bulb shell;

a heat sink connected to one end of the bubble housing having an opening;

the driving power supply is arranged in the heat radiating piece and is electrically connected with the light source component; and

the lamp holder is connected with the heat radiating piece and is electrically connected with the light source component;

the light source assembly comprises a plurality of light-emitting strips and a bracket for fixing the light-emitting strips, and the bubble shell and the bracket are fired and sealed in a sealing manner; the bulb shell, the heat dissipation piece and the lamp holder form a sealed space, and the sealed space is filled with heat dissipation gas.

Further, the longitudinal sectional shape of the bubble shell is an ellipse.

Further, the heat dissipation gas is at least one of helium, argon and nitrogen.

Further, waterproof glue is coated on the driving power supply.

Further, the bracket includes:

a stem;

the first conductive support rod is fixedly connected with one end of the core column, and one end of the light-emitting strip is fixedly connected with the first conductive support rod; and

the metal terminal is sleeved at the other end of the core column, and one end, far away from the core column, of the light-emitting strip is inserted on the metal terminal;

the metal terminal is of a first polarity of the light-emitting strip, and the first conductive support rod is of a second polarity of the light-emitting strip.

Further, the filament lamp further comprises a second conductive strut fixed to the stem;

the luminous strip comprises a plurality of first filaments and a plurality of second filaments which are adjacently arranged and distributed in two layers, the first filaments are arranged in parallel and vertically and are surrounded into a barrel shape, the second filaments are arranged in parallel and vertically and are surrounded into a barrel shape, and the second filaments are arranged in parallel and are surrounded into a barrel shape;

the two ends of the first filament are electrically connected with the metal terminals and the second conductive supporting rod respectively, and the two ends of the second filament are electrically connected with the second conductive supporting rod and the first conductive supporting rod respectively.

Further, the first conductive strut comprises a plurality of first metal wires which are radially arranged;

the second conductive support rod comprises a metal ring fixed on the core column, and a plurality of radial second metal wires and third metal wires connected with the metal ring, wherein the third metal wires are positioned between every two adjacent second metal wires;

the two ends of the first filament are respectively connected with the metal terminals and the second metal wire in an electric connection mode, the two ends of the second filament are respectively connected with the third metal wire and the first metal wire in an electric connection mode, so that the first filament is adjacent to the second filament in series, and the first filament or the second filament is adjacent to the second filament in parallel.

Further, the stem comprises:

the first conducting rod is fixed at one end of the rod part, and the second conducting rod is fixed on the rod part;

the first limiting part is connected with one end, far away from the first conducting rod, of the rod part and is used for preventing the metal terminal from moving towards the direction close to the rod part; and

the second limiting part is connected with the first limiting part, and the metal terminal is sleeved outside the second limiting part and used for preventing the metal terminal from moving towards the direction far away from the rod part.

Further, the metal terminal includes:

the substrate is provided with a through hole for the second limiting part to penetrate through, and the substrate is clamped on the second limiting part;

the inserting part is arranged on the substrate, and the light-emitting strip is inserted in the inserting part; and

and the abutting part extends from the position, corresponding to the through hole, on the substrate towards the direction of the first limiting part, and one end of the abutting part abuts against the first limiting part.

Further, the top of the blister shell is recessed towards the stem and forms a recess, which is welded to the stem.

Compared with the prior art, the utility model provides a filament lamp's beneficial effect lies in: on one hand, the sealing is realized by firing the foam shell and the bracket to seal, so that the high-level water resistance of the luminous strip is realized; on the other hand, enclose bubble casing, radiating piece and lamp holder and establish and form the confined space, this confined space intussuseption is filled with the heat dissipation gas to combine the heat dissipation of radiating piece, make the heat dissipation performance of whole filament lamp better, and then can the lifting power, combine the support, can bear more luminous strip.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic perspective view of a filament lamp according to an embodiment of the present invention;

FIG. 2 is an exploded view of a filament lamp according to an embodiment of the present invention

Fig. 3 is a schematic perspective view of a light source assembly according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a first conductive strut according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of a second conductive support rod according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a core column according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of a metal terminal according to an embodiment of the present invention;

fig. 8 is a schematic cross-sectional structure diagram of a filament lamp according to an embodiment of the present invention.

Wherein the reference numbers in the drawings are as follows:

1-a blister shell; 10-a sealed space; 2-a heat sink; 3-a light source assembly; 31-a light bar; 311-a first filament; 312-a second filament; 32-a scaffold; 321-a core column; 3211-a rod portion; 3212-a first stopper; 3213-a second stopper; 322-a first conductive strut; 3221-a first wire; 3222-a fixed end; 3223-free end; 323-metal terminals; 3231-a substrate; 3232-plug part; 3233-an abutment; 3234-a through hole; 3235-fourth wire; 324-a second conductive strut; 3241-second wire; 3242-third wire; 3243-ferrule; 4-a driving power supply; 5-lamp holder.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.

In order to explain the technical solution of the present invention, the following detailed description is made with reference to the specific drawings and examples.

Referring to fig. 1 to 3, an embodiment of the present invention provides a filament lamp, which includes a bulb housing 1, a light source assembly 3, a heat sink 2, a driving power source 4, and a lamp cap 5. Wherein, one end of the bulb shell 1 is provided with an opening; the light source component 3 is arranged in the bubble shell 1; the heat sink 2 is connected to the open end of the bulb housing 1; the driving power supply 4 is arranged in the heat dissipation member 2 and is electrically connected with the light source assembly 3; the lamp cap 5 is connected with the heat sink 3 and electrically connected with the light source assembly 3. Specifically, the light source assembly 3 includes a plurality of light-emitting strips 31 and a bracket 32 for fixing the light-emitting strips 31, and the bubble housing 1 and the bracket 32 are fired to be sealed in a sealing manner to form a seamless sealing connection, so as to realize high-level water resistance of the light-emitting strips 31; the bulb housing 1, the heat sink 2, and the base 5 enclose a sealed space 10, and the sealed space 10 is filled with heat dissipation gas.

In the embodiment of the utility model, on one hand, the bulb shell 1 and the bracket 32 are fired to seal and arrange to realize sealing, so that the high-grade water resistance of the luminous strip 31 is realized; on the other hand, enclose bubble casing 1, radiating piece 2 and lamp holder 5 and establish and form sealed space 10, be filled with the heat dissipation gas in this sealed space 10 to combine the heat dissipation of radiating piece 2, make the heat dispersion of whole filament lamp better, and then can promote power, combine support 32, can bear more light-emitting strip 31.

In a specific application, the bracket 32 and the bulb casing 1 are sealed and arranged by burning, and heat dissipation gas is filled to help heat dissipation, after the bulb casing 1 is connected with the driving power supply 4 by welding wires, the bulb casing 1 is connected with the heat dissipation member 2 by glue, the heat dissipation member 2 is provided with threads which are screwed with the lamp holder 5, so that the whole lamp is prevented from being too heavy to cause the connection with the lamp holder 5 to fall off.

In one embodiment, see fig. 8, the blister shell 1 is mainly a transparent blister shell 1, which mainly serves to protect the lighting strip 31 located inside it. The longitudinal section of the bulb shell 1 is oval, the distance between the light emitting strip 31 and the bulb shell 1 is shortened, the heat dissipation of the light emitting strip 31 is accelerated, compared with the spherical bulb shell 1, the bulb shell 1 with the oval longitudinal section reduces light loss, and mainly because the light is transmitted in the bulb shell medium and loses more energy than the light is transmitted in the air.

In one embodiment, the sealed space 10 is filled with heat dissipation gas. The heat generated by the light-emitting strip 31 during operation is diffused through the heat dissipation gas and the bulb shell 1, and the heat dissipation gas is fully contacted with the bulb shell 1, so that the filament lamp can dissipate heat quickly and effectively. Preferably, the heat dissipation gas is at least one of helium, argon and nitrogen, i.e. the heat dissipation gas consists essentially of an inert gas, which is a separate composition of helium, argon or nitrogen, or a combination thereof, which may be selected according to specific needs.

In one embodiment, in order to further improve the waterproof performance of the filament lamp and prevent the driving power supply 4 from water, the embodiment mainly applies a layer of waterproof glue on the driving power supply 4 to achieve the waterproof performance. The waterproof glue has the advantages of high flexibility, water resistance, moisture insulation, strong cohesive force, strong cracking resistance, strong cohesive force, air permeability, water impermeability, simple and convenient construction, high-efficiency construction, excellent impermeability, strong cohesive force and the like, so the waterproof glue is widely applied to water resistance. And the waterproof glue is coated, so that the waterproof effect is achieved, the work of the driving power supply 4 is not influenced, and the operation is simple.

In one embodiment, referring specifically to fig. 3, the bracket 32 includes a stem 321, a first conductive strut 322, and a metal terminal 3233. The stem 321 and the cell case 1 are sealed by firing, the first conductive support rod 322 is fixedly connected to one end of the stem 321, and the metal terminal 323 is sleeved on the other end of the stem 321. One end of the light-emitting bar 31 is fixedly connected to the first conductive strut 322, and one end of the light-emitting bar 31, which is far away from the stem 321, is inserted into the metal terminal 323, so that two ends of the light-emitting bar 31 are electrically connected to the first conductive strut 322 and the metal terminal 323, respectively.

Specifically, the metal terminal 323 is a first polarity of the light emitting bar 31, and the first conductive strut 322 is a second polarity of the light emitting bar 31, and if the first polarity is a negative polarity, the second polarity is a positive polarity, and it is understood that the polarities of the two are opposite. During installation, one end of the light-emitting strip 31 is electrically connected and fixed with the first conductive strut 322 in a welding mode, the stem 321 is a glass stem 321, and after the uppermost first conductive strut 322 serving as the first polarity penetrates through the stem 321, the opening of the stem 321 is sealed, so that the first conductive strut 322 is fixed, and the light-emitting strip 31 welded with the first conductive strut 322 is stably connected; the end of the light bar 31 away from the first conductive rod 322 is plugged with the metal terminal 323 as the second polarity, and the metal terminal 323 can save welding points.

Through fixing first conductive support rod 322 in the one end of stem 321, the other end of stem 321 is located to metal terminal 323 cover, and be connected with support frame and metal terminal 323 respectively through the both ends with light-emitting strip 31, can fix light-emitting strip 31 on stem 321 effectively through foretell mode, can not produce and rock and drop, and reduced the solder joint between stem 321 and the light-emitting strip 31, moreover, the steam generator is simple in structure, the equipment is convenient, on the other hand can avoid all welding stem 321 with the both ends of light-emitting strip 31, and when the quantity of light-emitting strip 31 increases, only need increase the quantity of metal terminal 323 and the quantity of welding point on first conductive support rod 322, can not cause the loose technical problem of holistic structure.

In one embodiment, referring particularly to fig. 3, the filament lamp further comprises a second conductive post 324 affixed to the stem 321, wherein the second conductive post 324 is located at a middle position of the stem 321. The light-emitting strip 31 includes that the adjacent setting just distributes in two-layer first filament 311 and second filament 312, and the quantity of first filament 311 is a plurality of, and a plurality of first filament 311 parallel vertical placement just enclose and establish and form the tubbiness, and the quantity of second filament 312 is a plurality of, and a plurality of second filament 312 parallel vertical placement just enclose and establish and form the tubbiness. Two ends of the first filament 311 are electrically connected to the metal terminal 323 and the first conductive strut 322, respectively, and two ends of the second filament 312 are electrically connected to the first conductive strut 322 and the second conductive strut 324, respectively. So that the first filament 311 and the second filament 312 are distributed on the upper and lower layers of the stem 321.

In one embodiment, with further reference to fig. 4 and 5, the first conductive strut 322 includes a plurality of radially disposed first wires 3221, specifically, the first wires 3221 include fixed ends 3222 and free ends 3223, the fixed ends 3222 of the plurality of first wires 3221 are connected together and inserted into the stem 1, and the free ends 3223 of the plurality of first wires 3221 are radially disposed.

The second conductive strut 324 includes a metal ring 3243 fixed to the stem 321, and a plurality of radially disposed second wires 3241 and third wires 3242 connected to the metal ring 3243. Every two second wires 3241 are arranged in a staggered manner, and a third wire 3242 is arranged between every two adjacent second wires 3241.

Two ends of the first filament 311 are respectively connected with the metal terminal 323 and the second wire 3241, two ends of the second filament 312 are respectively connected with the third wire 3242 and the first wire 3221, the first filament 311 and the second filament 312 are conducted through the second wire 3241 coil 3243 and the third wire 3242, so that the adjacent first filament 311 and the second filament 312 are connected in series, that is, the first filament 311 and the second filament 312 which form one light-emitting strip 31 are connected in series, and the adjacent two first filaments 311 or the adjacent two second filaments 312 are connected in parallel, that is, the adjacent two light-emitting strips 31 are connected in parallel.

Specifically, in the present embodiment, the stem 321 is an inner hollow structure, so that the metal ring 3243 is partially embedded in the stem 321, thereby fixing the metal ring 3243 on the stem 321. The fixing end 3222 of the first wire 3221 is conveniently passed through, and the end of the stem 321 is sealed to fix the first wire 3221. The free ends 3223 of the first wires 3221 are bent toward one direction in this embodiment to increase the contact area with the second filament 312, so as to facilitate welding between the first wires 3221 and the second filament 312. The ends of the second wire 3241 and the third wire 3242 are also bent in one direction, which facilitates welding between the second wire 3241 and the first filament 311 and welding between the third wire 3242 and the second filament 312.

In one embodiment, further referring to fig. 6, the stem 321 includes a rod portion 3211, a first position-limiting portion 3212, and a second position-limiting portion 3213 connected in sequence. The first conductive strut 322 is fixed at one end of the rod portion 3211, and the second conductive strut 324 is fixed on the rod portion 3211 and located between the first conductive strut 322 and the first position-limiting portion 3212. The first position-limiting portion 3212 is connected to an end of the rod portion 3211 away from the first conductive strut 322, and is configured to prevent the metal terminal 323 from moving toward a direction close to the rod portion 3211. The second position-limiting portion 3213 is connected to the first position-limiting portion 3212, and the metal terminal 323 is sleeved outside the second position-limiting portion 3213 to prevent the metal terminal 323 from moving in a direction away from the rod portion 3211. The metal terminal 323 is sleeved outside the second position-limiting portion 3213, that is, the metal terminal 323 is located between the first position-limiting portion 3212 and the second position-limiting portion 3213, so that the position of the metal terminal 323 can be limited to a certain extent, and thus the position of the light-emitting strip 31 inserted into the metal terminal 323 is prevented from being changed. The rod portion 3211, the first position-limiting portion 3212, and the second position-limiting portion 3213 are integrally formed.

In one embodiment, the first position-limiting portion 3212 is flat, the metal terminal 323 abuts against the first position-limiting portion 3212, the second position-limiting portion 3213 is flared, and the metal terminal 323 is clamped on the second position-limiting portion 3213. After the metal terminal 323 is sleeved in the stem 321, the stem 321 is heated and fired, and then the middle part of the stem is pinched flat, i.e. the flat first limit portion 3212 is formed, and the lower part of the stem 321 is arranged in a horn shape, i.e. the horn-shaped second limit portion 3213 is formed, so that the metal terminal 323 is prevented from falling off, and the function of fixing the metal terminal 323 is achieved.

In one embodiment, further referring to fig. 7, the metal terminal 323 includes a base plate 3231, a mating portion 3232, and an abutment portion 3233. The base plate 3231 is provided with a through hole 3234 through which the second position-limiting portion 3213 passes, and the base plate 3231 is clamped on the second position-limiting portion 3213. The insertion portion 3232 is disposed on the substrate 3231, and the light emitting bar 31 is inserted on the insertion portion 3232. The abutting portion 3233 extends from a position of the substrate 3231 corresponding to the through hole 3234 in a direction toward the first stopper portion 3212, and one end of the abutting portion 3233 abuts against the first stopper portion 3212. Specifically, the substrate 3231 is a circular metal substrate 3231, the insertion portion 3232 is disposed on the circular metal substrate 3231 in a surrounding manner, the insertion portion 3232 is two metal plates disposed opposite to each other, and a gap for inserting the light-emitting strip 31 is formed between the two metal plates disposed opposite to each other. The contact portion 3233 has a plate shape, the through hole 3234 has a hexagonal through hole 3234, and three contact portions 3233 are provided on three sides of the through hole 3234.

Referring to fig. 3 and 6, an end surface diameter of one end of the second position-limiting portion 3213 close to the metal terminal 323 is greater than an end surface diameter of one end of the second position-limiting portion, which is far away from the metal terminal 323, that is, the second position-limiting portion 3213 is in an inverted trumpet shape, and in order to prevent the metal terminal 323 from moving downward, an end surface diameter of one end of the second position-limiting portion 3213, which is far away from the metal terminal 323, is greater than a size of the through hole 3234, that is, when the through hole 3234 is a hexagonal hole, an end surface diameter of one end of the second position-limiting portion 3213, which is far away from the metal terminal 323, is.

In an embodiment, further referring to fig. 8, the driving power source 4 is electrically connected to one end of the light-emitting bar 31 through the first conductive support rod 322, a fourth wire 3235 is further disposed on the metal terminal 323, one end of the fourth wire 3235 is inserted into the metal terminal 323, and the other end is bent and electrically connected to the driving power source 4.

In one embodiment, the top of the bulb housing 1 is recessed towards the stem 321 and forms a recess, which is welded to the stem 321, enhancing the stability of the stem 321 and preventing the stem 321 and the light emitting bar 31 from shaking.

Specifically, the specific assembly process of the entire filament lamp is as follows:

first, the filament lamp is assembled, and after the metal terminal 323 is fitted into the stem 321, the stem 321 is heated and fired, and then the middle portion is pinched flat, and the lower portion of the stem 321 is formed in a horn shape, thereby preventing the metal terminal 323 from coming off.

Then, one end of the first filament 311 is inserted into the metal terminal 323, the other end of the first filament 311 is welded to the second wire 3241 at the middle section of the stem 321, and the second filament 312 at the upper layer is welded to the third wire 3242 and the first wire 3221 respectively. Since the stem 321 is a hollow stem 321, after the uppermost first wire 3221 passes through the hollow stem 321, the uppermost opening is sealed, and the second wire 3241 and the third wire 3242 located at the middle section of the stem 321 are embedded in the stem 321 by heating the stem 321.

And the stem 321 and the bulb shell 1 are sealed and arranged by means of firing, and heat dissipation gas is filled to help heat dissipation, and when the bulb shell 1 is not annealed after being sealed and arranged, the dent at the top of the bulb shell 1 is heated, so that the bulb shell 1 and the stem 321 are welded together, and the stability is enhanced.

Finally, the bulb shell 1 and the driving power supply 4 are connected through a welding wire, the bulb shell 1 is connected with the heat dissipation member 2 through glue, and the lamp cap 5 is connected with the heat dissipation member 2 in a screwing mode.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A filament lamp, comprising:

a bubble housing having an opening at one end;

the light source component is arranged in the bulb shell;

a heat sink connected to one end of the bubble housing having an opening;

2. The filament lamp of claim 1 wherein the longitudinal cross-sectional shape of the bulb housing is elliptical.

3. The filament lamp of claim 1 wherein the heat sink gas is at least one of helium, argon, and nitrogen.

4. The filament lamp of claim 1 wherein: waterproof glue is coated on the driving power supply.

5. The filament lamp according to any of claims 1 to 4, wherein the holder comprises:

the core column and the bulb shell are fired and sealed in a sealing way;

the first conductive support rod is fixedly connected with one end of the core column; and

the metal terminal is sleeved at the other end of the core column;

one end of the light-emitting strip is fixedly connected with the first conductive supporting rod, one end, far away from the core column, of the light-emitting strip is inserted into the metal terminal, the metal terminal is of the first polarity of the light-emitting strip, and the first conductive supporting rod is of the second polarity of the light-emitting strip.

6. The filament lamp of claim 5 further comprising a second conductive post secured to the stem;

7. The filament lamp of claim 6 wherein the first conductive strut comprises a plurality of radially disposed first wires;

8. The filament lamp of claim 6 wherein the stem comprises:

9. The filament lamp of claim 8 wherein the metal terminals comprise:

10. The filament lamp of claim 6 wherein the top of the bulb body is recessed toward the stem and forms a depression, the depression being fused to the stem.