CN202484680U

CN202484680U - Light-emitting diode (LED) bulb improved structure

Info

Publication number: CN202484680U
Application number: CN2012200766375U
Authority: CN
Inventors: 张一伟
Original assignee: TG-LIGHT OPTOELECTRONIC Co Ltd
Current assignee: Alltop Electronics Suzhou Co Ltd; Alltop Technology Co Ltd
Priority date: 2012-03-02
Filing date: 2012-03-02
Publication date: 2012-10-10
Anticipated expiration: 2022-03-02

Abstract

The utility model provides a light-emitting diode (LED) improved structure which comprises a base, a heat dissipation pillar, a multilateral corner post, a plurality of first circuit boards and an outer cover. The base comprises an insulator and electric joints connected under the insulator. The heat dissipation pillar is connected above the base. The multilateral corner post is connected above the heat dissipation pillar, dividing strips are axially arranged at each corner outside the multilateral corner post, and a containing groove is formed between every dividing strip. The first circuit boards are installed in the containing grooves of the multilateral corner post and provided with a plurality of LEDs, and the first circuit boards are electrically connected with the electric joints on the base. The outer cover is matched with the outboard of the multilateral corner post and the outboards of the first circuit boards, and is combined with the outboard of the multilateral corner post and the outboards of the first circuit boards above the multilateral corner post. Accordingly, the LED bulb improved structure has the advantages that axial and horizontal luminescent sources are arranged, luminescent angle and intensity are increased, heat dissipation efficiency is improved, service life of LED is prolonged, and people are prevented from electric shock caused by contacting the electric joints by mistake when people carry out installation.

Description

LED bulb structure-improved

Technical field

The utility model is relevant a kind of LED bulb structure-improved, refers to that especially a kind of base has insulator and the LED bulb that axially reaches the illuminating source of horizontal direction can be provided.

Background technology

Traditional osram lamp has following shortcoming: one, caloric value is high, scalds easily; Two, bulb adapter naked is got an electric shock easily; Three, tungsten filament is prone to because of voltage instability burns, and needs often to change; Four, glass bulb, fluorescent tube are frangible, preserve to be difficult for; Five, color is dull.

Advantages such as light emitting diode (LED) has that volume is little, low power consumption, long service life, reaction speed are fast, be used in gradually on the lighting apparatus, yet commercially available LED bulb still has following shortcoming at present: one, directive property is high, and lighting angle is limited; Two, heat radiation is bad, causes the LED damage to lose efficacy; Three, bulb adapter naked is got an electric shock easily.

Edge is, this creator improves thoughts on the problems referred to above, is concentrate on studies and cooperate the utilization of scientific principle, and then proposes a kind of reasonable in design and effectively improve the utility model of the problems referred to above.

The utility model content

The main purpose of the utility model; A kind of LED bulb structure-improved is being provided, be provided with a plurality of first circuit boards through sidewall around this polygon corner post, and said first circuit board is being provided with a plurality of LED; To have 360 degree illuminating source and the uniform effectiveness of illumination can be provided; This second circuit board is provided with at least one LED again, and this second circuit board is horizontally placed on the top side of this polygon corner post, can provide axially and the illuminating source of horizontal direction, increases the effect of lighting angle and illumination to have.

A time purpose of the utility model; A kind of LED bulb structure-improved is being provided, narrow outer wide divider in each corner of the outside through this polygon corner post is axially arranged with, and between each divider, form storage tank; And said first circuit board is arranged in the storage tank of this polygon corner post; Can let said first circuit board near polygon corner post, can the thermal source that LED on the first circuit board produces be conducted to this polygon corner post, and be connected in this thermal column top through this polygon corner post; And the outside whole circumference of this thermal column contacts with air; Make the thermal source of this polygon corner post conduct to this thermal column, derive via thermal convection current again, promote radiating efficiency to have, prolong the LED effect in service life.

The another purpose of the utility model; A kind of LED bulb structure-improved is being provided; Comprise the electrical joint that an insulator and is connected in this insulator below through this base; This thermal column is connected in this base top, promptly between this thermal column and this electrical joint across this insulator, this electrical joint (connecing alternating current) of false touch when avoiding personnel to assemble and generation Danger Electric shock risk.

For reaching above-mentioned purpose, the LED bulb structure-improved of the utility model comprises a base, a thermal column, a polygon corner post, a plurality of first circuit board and an outer cover.This base comprises the electrical joint that an insulator and is connected in this insulator below; This thermal column is connected in this base top; This polygon corner post is connected in this thermal column top, and each corner of the outside of this polygon corner post is axially arranged with divider, and between each divider, forms storage tank; Said first circuit board is arranged in the storage tank of this polygon corner post, and said first circuit board is provided with a plurality of LED, and the electrical joint of said first circuit board and this base electrically connects; This outer cover cover closes in the outside of this polygon corner post and first circuit board, and is incorporated into this thermal column top.

Wherein, this electrical joint has external screw thread.

Wherein, this electrical joint has conductive pole.

Wherein, this thermal column outside is provided with rough surface.

Wherein, this thermal column is a hollow cylinder, and its inner die casting moulding has a demarcation strip, and this polygon corner post is connected with this demarcation strip.

Wherein, the demarcation strip of this thermal column top forms a groove, the corresponding combination with this groove of this outer cover.

Wherein, the demarcation strip of this thermal column below forms an accommodation space.

Wherein, further comprise a power supply changeover device, this power supply changeover device is arranged in this accommodation space, and this power supply changeover device and the electric connection of this first circuit board.

Wherein, further comprise a power supply changeover device, and this insulator inside has an accommodation space, this power supply changeover device is arranged in this accommodation space, and this power supply changeover device and this first circuit board electrically connect.

Wherein, further comprise a second circuit board, this second circuit board is provided with at least one LED, and this second circuit board is horizontally placed on the top side of this polygon corner post, and this second circuit board and this first circuit board electrically connect.

The beneficial effect of the utility model: thus, the utlity model has can provide axially and the illuminating source of horizontal direction, increase lighting angle and illumination, lifting radiating efficiency, prolong LED service life, false touch this electrical joint (connecing alternating current) and the effect of generation Danger Electric shock risk when avoiding personnel to assemble.

Description of drawings

Fig. 1 is the stereogram of the utility model first embodiment.

Fig. 2 is the element exploded view of the utility model first embodiment.

Fig. 3 is the thermal column of the utility model first embodiment and the assembled state sketch map of polygon corner post.

Fig. 4 is another visual angle stereogram of the utility model first embodiment.

Fig. 5 is the stereogram of the utility model second embodiment.

The main element symbol description

10, base

11, insulator

110, accommodation space

12, electrical joint

20, thermal column

21, demarcation strip

22, accommodation space

23, groove

30, polygon corner post

31, divider

32, storage tank

40, first circuit board

41、LED

42, lead

50, outer cover

60, power supply changeover device

70, second circuit board

71、LED

The specific embodiment

In order further to understand characteristic, characteristics and the technology contents of the utility model, see also following detailed description and accompanying drawing about the utility model, appended graphic reference and the explanation usefulness of only providing, non-in order to restriction the utility model.

< first embodiment >

See also Fig. 1～Fig. 4, the LED bulb structure-improved of the utility model comprises: the polygon corner post of a base 10, a thermal column 20, one 30, a plurality of first circuit board 40 and an outer cover 50.

This base 10; Comprise the electrical joint 12 (metal materials that an insulator 11 (plastic material) and is connected in these insulator 11 belows; Present embodiment is a copper material); These insulator 11 inside have an accommodation space 110, and this electrical joint 12 has external screw thread, obtain required electric power for corresponding combination with a socket.

This thermal column 20 (metal material) is hollow cylindrical, and these thermal column 20 inner die casting mouldings have a demarcation strip 21; Make demarcation strip 21 tops of this thermal column 20 form a groove 23, and form an accommodation space 22, and this thermal column 20 is connected in this base 10 tops in demarcation strip 21 belows of this thermal column 20; In the present embodiment; The insulator 11 of this base 10 has external screw thread, and this thermal column 20 has internal thread, makes this thermal column 20 screw togather in correspondence with each other with this base 10; These thermal column 20 outsides are provided with rough surface again, to improve radiating efficiency and conveniently to grip.

This polygon corner post 30 (present embodiment is positive hexagon corner post); Be connected in this thermal column 20 tops; In the present embodiment; This polygon corner post 30 be through screw closure in demarcation strip 21 central authorities, and each corner of the outside of this polygon corner post 30 narrow outer wide divider 31 (increasing endotherm area) in being axially arranged with to improve radiating efficiency; And (being the sidewall of polygon corner post 30) forms storage tank 32 between each divider 31, and this storage tank 32 has spacing effect for inner wide and outer narrow shape (crosscut is planar like the dovetail shape).

Said first circuit board 40 (being strip); Be to be arranged in the storage tank 32 of this polygon corner post 30 and to fix through glue or heat-conducting glue; And said first circuit board 40 is provided with a plurality of LED41 (SMD LED surface-mount device LED; For a plurality of led chips electrically connect through pin and first circuit board 40), and said first circuit board 40 electrically connects through the electrical joint 12 of lead 42 with this base 10.

This outer cover 50 (transparent or semitransparent plastic material; Also can be transparent or semitransparent glass material); Be that cover closes in the outside of this polygon corner post 30 and first circuit board 40, and be incorporated into this thermal column 20 tops, in the present embodiment; The groove 23 corresponding combinations of this outer cover 50 and this thermal column 20 (these outer cover 50 root edges embed from these groove 23 tops, also can be the design that this outer cover 50 and this groove 23 screw togather mutually).

Preferably; The LED bulb structure-improved of the utility model; Be further to comprise a second circuit board 70, this second circuit board 70 is provided with at least one LED71 (SMD LED surface-mount device LED is for led chip electrically connects through pin and second circuit board 70); And this second circuit board 70 is horizontally placed on the top side of this polygon corner post 30, and this second circuit board 70 electrically connects with this first circuit board 40.

In addition; The LED bulb structure-improved of the utility model; Be further to comprise a power supply changeover device 60 (converting alternating current to direct current); This power supply changeover device 60 is arranged in the inner accommodation space 110 of this insulator 11 (this power supply changeover device 60 also can be arranged in the accommodation space 22 of demarcation strip 21 belows of this thermal column 20), and this power supply changeover device 60 electrically connects with this first circuit board 40, in the present embodiment; One end of this power supply changeover device 60 electrically connects through lead 42 and this first circuit board 40, and the other end of this power supply changeover device 60 is through lead 42 and electrically joint 12 electric connections.

During use; This electrical joint 12 is obtained alternating current from the outside after power supply changeover device 60 converts direct current to; Offer LED41 and the LED71 on this second circuit board 70 on this first circuit board 40; And the illuminating source of generation axial (180 degree) and horizontal direction (360 degree); And the thermal source that produces absorbs, conducts to this thermal column 20 through this polygon corner post 30 and divider 31 thereof, and then derives via thermal convection current, makes the LED bulb structure-improved of the utility model have the lighting angle of 540 degree and good radiating efficiency.

< second embodiment >

See also Fig. 5, the LED bulb structure-improved of the utility model comprises: the polygon corner post of a base 10, a thermal column 20, one 30, a plurality of first circuit board 40 and an outer cover 50.The present embodiment content is roughly identical with first embodiment, and its difference is:

This base 10; Be to comprise the electrical joint 12 that an insulator 11 (plastic material) and is connected in these insulator 11 belows; These insulator 11 inside have an accommodation space 110; And this electrical joint 12 has conductive pole (present embodiment is two conductive poles), obtains required electric power for corresponding grafting with a socket combines.

The structure improved characteristics of LED bulb of the utility model are: be provided with a plurality of first circuit boards 40 through sidewall around this polygon corner post 30; And said first circuit board 40 is provided with a plurality of LED41; To have 360 degree illuminating source and the uniform effectiveness of illumination can be provided; This second circuit board 70 is provided with at least one LED71 again; And this second circuit board 70 is horizontally placed on the top side of this polygon corner post 30, to have the illuminating source that axially reaches horizontal direction, the effect that increases lighting angle and illumination can be provided, and then increases the novelty and the progressive of the utility model; And each corner of the outside through this polygon corner post 30 be axially arranged with in narrow outer wide divider 31; And between each divider 31, form storage tank 32; And said first circuit board 40 is arranged in the storage tank of this polygon corner post 30 32, can let said first circuit board 40 near polygon corner post 30, can the thermal source that LED41 on the first circuit board 40 produces be conducted to this polygon corner post 30; And be connected in this thermal column 20 tops through this polygon corner post 30; And these thermal column 20 outside whole circumference contact with air, make the thermal source of this polygon corner post 30 conduct to this thermal column 20, derive via thermal convection current again; Promote radiating efficiency to have, prolong the LED effect in service life, and then increase the practicality and the progressive of the utility model; Comprise the electrical joint 12 that an insulator 11 and is connected in these insulator 11 belows through this base 10 again; This thermal column 20 is connected in this base 10 tops; Promptly between this thermal column 20 and this electrical joint 12 across this insulator 11; This electrical joint 12 (connecing alternating current) of false touch when avoiding personnel to assemble and produce Danger Electric shock risk, and then increase the progressive and the security of the utility model.

The above is merely the preferable possible embodiments of the utility model, and is non-so promptly limit to the claim of the utility model, use such as the utility model specification and graphic content institute for it equivalent structure change, all reason is with being contained in the scope of the utility model.

Claims

1. a LED bulb structure-improved is characterized in that, comprising:

One base comprises the electrical joint that an insulator and is connected in this insulator below;

One thermal column is connected in this base top;

One polygon corner post is connected in this thermal column top, and each corner of the outside of this polygon corner post is axially arranged with divider, and between each divider, forms storage tank;

A plurality of first circuit boards be arranged in the storage tank of this polygon corner post, and said first circuit board are provided with a plurality of LED, and the electrical joint of said first circuit board and this base electrically connects; And

One outer cover, cover closes in the outside of this polygon corner post and first circuit board, and is incorporated into this thermal column top.

2. LED bulb structure-improved as claimed in claim 1 is characterized in that this electrical joint has external screw thread.

3. LED bulb structure-improved as claimed in claim 1 is characterized in that this electrical joint has conductive pole.

4. LED bulb structure-improved as claimed in claim 1 is characterized in that this thermal column outside is provided with rough surface.

5. LED bulb structure-improved as claimed in claim 1 is characterized in that this thermal column is a hollow cylinder, and its inner die casting moulding has a demarcation strip, and this polygon corner post is connected with this demarcation strip.

6. LED bulb structure-improved as claimed in claim 5 is characterized in that, the demarcation strip top of this thermal column forms a groove, the corresponding combination with this groove of this outer cover.

7. LED bulb structure-improved as claimed in claim 5 is characterized in that, the demarcation strip below of this thermal column forms an accommodation space.

8. LED bulb structure-improved as claimed in claim 7 is characterized in that further comprise a power supply changeover device, this power supply changeover device is arranged in this accommodation space, and this power supply changeover device and the electric connection of this first circuit board.

9. LED bulb structure-improved as claimed in claim 1; It is characterized in that, further comprise a power supply changeover device, and this insulator inside has an accommodation space; This power supply changeover device is arranged in this accommodation space, and this power supply changeover device and the electric connection of this first circuit board.

10. LED bulb structure-improved as claimed in claim 1; It is characterized in that further comprise a second circuit board, this second circuit board is provided with at least one LED; And this second circuit board is horizontally placed on the top side of this polygon corner post, and this second circuit board and the electric connection of this first circuit board.