CN209944030U

CN209944030U - Adjustable colour temperature lamp with hard filament

Info

Publication number: CN209944030U
Application number: CN201921026585.9U
Authority: CN
Inventors: 涂君
Original assignee: Dongguan Bofa Lighting Co Ltd
Current assignee: Dongguan Bofa Lighting Co Ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-01-14
Anticipated expiration: 2029-07-03

Abstract

The utility model relates to the technical field of lighting, in particular to an adjustable color temperature lamp with hard filaments, which comprises a lamp holder, a lampshade connected with the lamp holder and a core column arranged between the lamp holder and the lampshade; the core column is provided with a first PCB and a second PCB; a first filament and a second filament are arranged in the lampshade; a first guide wire, a second guide wire and a third guide wire are arranged on the core column; the first lamp filament and the second lamp filament are arranged between the first PCB and the second PCB; the PCB also comprises a third PCB; the third PCB is provided with a power supply drive; the first guide wire, the second guide wire and the third guide wire are respectively connected with a power supply in a driving mode. The utility model discloses a set up the first filament and the second filament of different colour temperatures to control the luminance of first filament and second filament respectively through power drive, thereby change the colour temperature of the light that sends after first filament and second filament mix through the luminance of adjusting first filament and second filament.

Description

Adjustable colour temperature lamp with hard filament

Technical Field

The utility model relates to the field of lighting technology, concretely relates to adjustable color temperature lamp with hard filament.

Background

The appearance of the bulb lamp is in the shape of a spherical bulb which is used by people, and the LED lamp beads are selected as the internal light sources. The bulb lamp has the advantages of energy conservation, environmental protection, long service life and the like of the LED lamp.

The uppermost surface of the bulb lamp structure is a lampshade, the lampshade is clamped on the base, the lamp holder is connected with a power supply for driving, and the light emitting surface is a lamp bead light source of the bulb lamp.

Because the bulb lamp shines through the LED lamp pearl light source that sets up in it, and illumination shines out in the lamp shade, and the lamp shade directly throws out the illumination of LED lamp pearl, because the bright intensity of LED lamp pearl itself or long-term service problem, there is the difference in the colour temperature that produces different LED lamp pearls easily, influences the projection effect, influences user's use impression. Therefore, how to improve the irradiation effect of the irradiation color temperature of the bulb lamp on the user is a problem to be solved urgently by those skilled in the art.

Disclosure of Invention

The utility model aims at the above-mentioned not enough among the prior art, provide an adjustable colour temperature lamp with hard filament.

The purpose of the utility model is realized through the following technical scheme: a color temperature adjustable lamp with hard filaments comprises a lamp holder, a lampshade connected with the lamp holder and a core column arranged between the lamp holder and the lampshade; the core column is sequentially provided with a first PCB and a second PCB from top to bottom; a first filament and a second filament are arranged in the lampshade; a first guide wire, a second guide wire and a third guide wire are arranged on the core column; the first guide wire is electrically connected with the third guide wire after passing through the first filament; the second guide wire is electrically connected with the third guide wire after passing through the second filament; the first lamp filament and the second lamp filament are arranged between the first PCB and the second PCB; the adjustable color temperature lamp with the hard filament further comprises a third PCB electrically connected with the lamp holder; the third PCB is provided with a power supply drive; the first guide wire, the second guide wire and the third guide wire are respectively connected with a power supply in a driving mode.

The utility model is further provided with that the number of the first filaments is multiple; the first lamp filaments are connected in series between the first PCB and the second PCB.

The utility model is further provided with that the number of the second filaments is multiple; the first lamp filaments are connected in series between the first PCB and the second PCB.

The utility model discloses further set up to, the colour temperature of first filament is different with the colour temperature of second filament.

The utility model discloses further set up as, the length of first filament is different with the length of second filament.

The utility model is further provided that the core column comprises a horn tube and a glass tube connected with the horn tube; the first PCB and the second PCB are sleeved on the glass tube; the first guide wire, the second guide wire and the third guide wire are all arranged on the horn tube.

The utility model is further arranged that one end of the first guide wire, one end of the second guide wire and one end of the third guide wire are all connected with the third PCB; the other end of the first guide wire, the other end of the second guide wire and the other end of the third guide wire all penetrate through the horn tube.

The utility model discloses further set up to, the third PCB board is violently established in the lamp holder.

The utility model discloses further set up to, the both ends of first filament and the both ends of second filament all are equipped with the contact ear.

The utility model discloses further set up to, all be equipped with the metal support between first filament and the first PCB board, between second filament and the first PCB board, between first filament and the second PCB board and between second filament and the second PCB board.

The utility model has the advantages that: the utility model discloses a set up the first filament and the second filament of different colour temperatures to control the luminance of first filament and second filament respectively through power drive, thereby change the colour temperature of the light that sends after first filament and second filament mix through the luminance of adjusting first filament and second filament.

Drawings

The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived from the following drawings without inventive effort.

Fig. 1 is a schematic structural view of the utility model after the lampshade is hidden;

fig. 2 is a schematic structural view of the utility model after hiding the lampshade and the lamp holder;

FIG. 3 is a partial enlarged view of portion A of FIG. 1;

the reference numerals in fig. 1 to 3 illustrate:

1-a lamp holder; 2-core column; 21-a flare tube; 22-a glass tube; 31-a first PCB board; 32-a second PCB board; 41-a first filament; 42-a second filament; 43-contact ear; 51-a first guidewire; 52-a second guidewire; 53-a third guidewire; 6-metal support.

Detailed Description

The invention will be further described with reference to the following examples.

As can be seen from fig. 1 to 3; the color temperature adjustable lamp with the hard filament comprises a lamp holder 1, a lampshade connected with the lamp holder 1 and a core column 2 arranged between the lamp holder 1 and the lampshade; wherein, the lamp shade is not shown in the figure; the core column 2 is sequentially provided with a first PCB 31 and a second PCB 32 from top to bottom; a first filament 41 and a second filament 42 are arranged in the lampshade; the material of the first filament 41 and the second filament 42 may be ceramic or sapphire; a first guide wire 51, a second guide wire 52 and a third guide wire 53 are arranged on the stem 2; the first guide wire 51 is electrically connected with the third guide wire 53 after passing through the first filament 41; the second guide wire 52 is electrically connected with a third guide wire 53 after passing through the second filament 42; the first filament 41 and the second filament 42 are both arranged between the first PCB 31 and the second PCB 32; the adjustable color temperature lamp with the hard filament further comprises a third PCB electrically connected with the lamp holder 1; the first PCB 31 is not shown, and the third PCB is provided with a power supply driver; the first guide wire 51, the second guide wire 52 and the third guide wire 53 are respectively connected with a power supply in a driving way. Wherein, the power drive is the LED power drive that current application was in the bulb. In the present embodiment, the color temperature of the first filament 41 is different from the color temperature of the second filament 42.

Specifically, one end of the first filament 41 and one end of the second filament 42 are respectively connected to two output ends of the power supply drive through the first guide wire 51 and the second guide wire 52, and the third guide wire 53 is a common end of the first filament 41 and the second filament 42, and is used for enabling the first filament 41 and the power supply drive to form a loop and enabling the second filament 42 and the power supply drive to form a loop, so that the first filament 41 and the second filament 42 are connected in parallel, and the power supply drive can respectively control the brightness of the first filament 41 and the second filament 42; in addition, the adjustable color temperature lamp with the hard filament in the embodiment is not limited to two filaments with different color temperatures, and may also be provided with multiple filaments with different color temperatures, and is connected with the power supply in a parallel connection manner, so that more different color temperatures can be generated.

In the color temperature adjustable lamp with hard filaments according to this embodiment, the first filament 41 and the second filament 42 with different color temperatures are provided, and the brightness of the first filament 41 and the brightness of the second filament 42 are respectively controlled by the power driving, so that the color temperature of the light emitted after the first filament 41 and the second filament 42 are mixed is changed by adjusting the brightness of the first filament 41 and the second filament 42.

In the color temperature adjustable lamp with hard filaments according to this embodiment, the number of the first filaments 41 is multiple; a plurality of first filaments 41 are connected in series between the first PCB 31 and the second PCB 32. In the color temperature adjustable lamp with hard filaments according to the embodiment, the number of the second filaments 42 is multiple; a plurality of first filaments 41 are connected in series between the first PCB 31 and the second PCB 32.

Specifically, in the present embodiment, by providing the plurality of first filament wires 41 and the plurality of second filament wires 42, the brightness of the color temperature adjustable lamp can be increased, and in order to enable the plurality of first filament wires 41 to be connected in series and enable the plurality of second filament wires 42 to be connected in series, the present embodiment can enable the plurality of first filament wires 41 to be connected in series and the plurality of second filament wires 42 to be connected in series by providing the first PCB 31 and the second PCB 32 on the stem 2.

In the present embodiment, the length of the first filament 41 is different from the length of the second filament 42 in the color temperature adjustable lamp with hard filaments.

In the color temperature adjustable lamp with hard filaments according to the embodiment, the stem 2 includes a flared tube 21 and a glass tube 22 connected to the flared tube 21; the first PCB 31 and the second PCB 32 are both sleeved on the glass tube 22; the first guide wire 51, the second guide wire 52 and the third guide wire 53 are all arranged on the flared tube 21. In the color temperature adjustable lamp with the hard filament, one end of the first guide wire 51, one end of the second guide wire 52 and one end of the third guide wire 53 are all connected with the third PCB; the other end of the first guide wire 51, the other end of the second guide wire 52 and the other end of the third guide wire 53 all penetrate through the flared tube 22. Specifically, the other end of the first guide wire 51 penetrates through the glass tube 22 and is connected with the first filament 41, the other end of the second guide wire 52 penetrates through the glass tube 22 and is connected with the second filament 42, and the other ends of the third guide wires 53 penetrate through the flared tube 22 and form a common end of the first filament 41 and the second filament 42; positioning can be performed by disposing the first guide wire 51, the second guide wire 52, and the third guide wire 53 in the trumpet 21.

In the color temperature adjustable lamp with the hard filament, the third PCB is transversely disposed in the lamp holder 1. The arrangement can save the space of the color temperature adjustable lamp.

In the color temperature adjustable lamp with hard filaments according to this embodiment, the two ends of the first filament 41 and the two ends of the second filament 42 are both provided with contact lugs 43. In the adjustable color temperature lamp with hard filament described in this embodiment, metal supports 6 are respectively disposed between the first filament 41 and the first PCB 31, between the second filament 42 and the first PCB 31, between the first filament 41 and the second PCB 32, and between the second filament 42 and the second PCB 32. The above arrangement facilitates the connection between the first filament 41, the second filament 42, the first PCB 31, and the second PCB 32.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An adjustable color temperature lamp with hard filaments, characterized in that: comprises a lamp holder (1), a lampshade connected with the lamp holder (1) and a core column (2) arranged between the lamp holder (1) and the lampshade; the core column (2) is sequentially provided with a first PCB (31) and a second PCB (32) from top to bottom; a first filament (41) and a second filament (42) are arranged in the lampshade; a first guide wire (51), a second guide wire (52) and a third guide wire (53) are arranged on the core column (2); the first guide wire (51) is electrically connected with the third guide wire (53) after passing through the first filament (41); the second guide wire (52) passes through the second filament (42) and then is electrically connected with the third guide wire (53); the first filament (41) and the second filament (42) are arranged between the first PCB (31) and the second PCB (32); the adjustable color temperature lamp with the hard filament further comprises a third PCB electrically connected with the lamp holder (1); the third PCB is provided with a power supply drive; the first guide wire (51), the second guide wire (52) and the third guide wire (53) are respectively connected with a power supply in a driving way.

2. A variable color temperature lamp with a hard filament as set forth in claim 1, wherein: the number of the first filaments (41) is multiple; the first filaments (41) are connected in series between the first PCB (31) and the second PCB (32).

3. A variable color temperature lamp with a hard filament as set forth in claim 1, wherein: the number of the second filaments (42) is multiple; the first filaments (41) are connected in series between the first PCB (31) and the second PCB (32).

4. A variable color temperature lamp with a hard filament as set forth in claim 1, wherein: the color temperature of the first filament (41) is different from the color temperature of the second filament (42).

5. A variable color temperature lamp with a hard filament as set forth in claim 1, wherein: the first filament (41) has a length different from a length of the second filament (42).

6. A variable color temperature lamp with a hard filament as set forth in claim 1, wherein: the core column (2) comprises a flared tube (21) and a glass tube (22) connected with the flared tube (21); the first PCB (31) and the second PCB (32) are sleeved on the glass tube (22); the first guide wire (51), the second guide wire (52) and the third guide wire (53) are all arranged on the trumpet tube (21).

7. A variable color temperature lamp with a hard filament as set forth in claim 1, wherein: one end of the first guide wire (51), one end of the second guide wire (52) and one end of the third guide wire (53) are connected with the third PCB; the other end of the first guide wire (51), the other end of the second guide wire (52) and the other end of the third guide wire (53) penetrate through the flared tube (21).

8. A variable color temperature lamp with a hard filament as set forth in claim 1, wherein: the third PCB is transversely arranged in the lamp holder (1).

9. A variable color temperature lamp with a hard filament as set forth in claim 1, wherein: and contact lugs (43) are arranged at two ends of the first filament (41) and two ends of the second filament (42).

10. A variable color temperature lamp with a hard filament as set forth in claim 1, wherein: and metal supports (6) are arranged between the first filament (41) and the first PCB (31), between the second filament (42) and the first PCB (31), between the first filament (41) and the second PCB (32) and between the second filament (42) and the second PCB (32).