CN201277458Y

CN201277458Y - LED lighting bulb structure

Info

Publication number: CN201277458Y
Application number: CNU2008201752369U
Authority: CN
Inventors: 阮庆源; 张昆荣; 林国俊; 阮庆煌
Original assignee: Li Hong Science & Technology Co ltd
Current assignee: Li Hong Science & Technology Co ltd
Priority date: 2008-10-31
Filing date: 2008-10-31
Publication date: 2009-07-22
Anticipated expiration: 2018-10-31

Abstract

A LED lighting bulb structure is characterized in that a bulb controller is arranged in a lamp holder, the bottom surface of the bulb controller is fixed by an upper joint cover, a radiating fin group internally sleeved with at least one heat conducting pipe and a lower joint cover are fixed on the bottom surface of the upper joint cover, the periphery of the lower joint cover is screwed with a bulb shell internally provided with a tray, and a plurality of LED lamp groups corresponding to the plurality of heat conducting pipes extend outwards from the bottom surface of the tray; therefore, the plurality of LED lamp sets generate heat energy, and the heat and cold are separated through the heat and cold exchange between the plurality of heat pipes and the heat radiating fin set, so that the heat radiating effect is good, and the heat is dissipated more efficiently.

Description

LED lighting bulb structure

Technical field

The utility model relates to a kind of LED lighting bulb structure, and particularly a kind of can be that the more efficient release of heat energy of LED lighting bulb generation and the LED lighting bulb of quick heat radiating are constructed with assembly.

Background technology

In the streets sell the LED bulb at present, employed energy is very little when luminous, therefore, on the product of many use bulbs, it replaces traditional osram lamp already, and obtain to use widely, such as the advertisement plate of general ornament lamp formula, business or illumination indication usefulness or traffic sign etc., all be to replace with the LED bulb.

Yet; seldom electric weight can be luminous though commercially available LED bulb 10 only needs; in luminous, can produce high temperataure phenomena; and in order to change the convenience of LED bulb 10; the be everlasting centre position of LED bulb 10 adds a containment vessel 11 (as shown in Figure 1); though and this containment vessel 11 can be used for gripping when changing LED bulb 10 for the consumer; but in the high temperature heat that containment vessel 11 produces inside is coated on; even shut; cause poor heat radiation; make that LED bulb 10 is easy to damage, reduce its service life especially.

Edge this, under the not good prerequisite of above-mentioned traditional LED bulb 10 radiating effects, so industry is developed and a kind of LED bulb 20 is fixed on a heat-conducting plate 22 belows, these heat-conducting plate 22 tops are each fin 21 secure bond (as shown in Figure 2) that space type is arranged with one again; When desire is used, the high temperataure phenomena that this LED bulb 20 produces, utilize heat-conducting plate 22 to absorb LED bulb 20 heat when luminous, be sent to each fin 21 again and obtain heat radiation, but after each fin 21 all is heated, form baking mutually easily, make that the contact conduction is saturated, more allow all be covered with temperature, be difficult to drive away heat, reduce by 20 service lifes of LED bulb.

To sum up and opinion, the following drawback of ways customary tool after enforcement:

1, the heat energy of habitual LED bulb structure generation causes the increase in temperature in the metallic cavity, uses and the inconvenience of replacing except causing, and also may cause danger.

2, the heat energy of habitual LED bulb generation in the LED of poor heat radiation bulb structure, causes the LED bulb service life to shorten, and increases maintenance cost.

The utility model content

Technical problem to be solved in the utility model is to overcome existing LED bulb after producing high temperature, poor heat radiation, main purpose of the present utility model provides a kind of hot cold exchange that utilizes a plurality of heat pipes and radiating fin group, allow cold and hot separation, make its excellent in heat dissipation effect, and more efficient with the heat loss.

The technical scheme in the invention for solving the technical problem is as follows:

A kind of LED lighting bulb structure, it is provided with a bulb controller in lamp socket inside, this bulb controller bottom surface is fixing to engage lid on one, covering the bottom surface at last joint is fixed with the radiating fin group of an inner sheathed at least one heat pipe and engages lid once, engage in this time and to cover periphery and be spirally connected and one be built-in with the bulb shell of pallet, and be projected with a plurality of LED lamp groups of corresponding a plurality of heat pipes in tray bottom surface.

By above-mentioned explanation, the utlity model has following beneficial functional:

1. the utility model is for reaching energy-conservation and security purpose, and the LED lamp that uses that volume is little, illumination functions strong and be difficult for explosion is as luminous main body.

2. the radial position that is connected in the space of top, bottom of the utility model lamp housing is provided with the multilayer radiating fin, and is required and utilize radiating fin when LED lamp duration of work, removes and can protect lamp housing, also can increase radiating effect.

Description of drawings

Fig. 1 is the stereogram of traditional LED bulb.

Fig. 2 is the stereogram of another traditional LED bulb.

Fig. 3 is the three-dimensional exploded view according to LED lighting bulb of the present utility model.

Fig. 4 is the stereoscopic figure according to LED lighting bulb of the present utility model.

Fig. 5 removes bulb shell upward view afterwards according to LED lighting bulb of the present utility model.

Fig. 6 is cutaway view and the heat radiation schematic diagram of Fig. 5 in the A-A position.

Fig. 7 is according to the stereogram that engages lid of going up of the present utility model.

The specific embodiment

See also Fig. 3,4,6 and Fig. 7, the utility model LED lighting bulb structure, include at least engage on a lamp socket 30, the bulb controller 40, a cover 50, radiating fin group 60, a plurality of heat pipe 70, once joint cover 80, a plurality of LED lamp group 90, wherein:

This lamp socket 30, comprise a king light seat 31, one conductive seat 32 and multiple conducting wires 33, this king light seat 31 is provided with built-in space 310, use for bulb controller 40 and go up to engage and cover 50 and set firmly, be provided with a plurality of fixing holes 311 and a plurality of dismounting groove 312 around king light seat 31 lower ends, and be provided with a plurality of air-vents 314 in the outer rim of the nearly upper end of king light seat 31 spiro union portions 313, these spiro union portion 313 lower ends are provided with a wiring hole 315, and be provided with internal thread 321 in this conductive seat 32, with this internal thread 321 king light seat 31 upper end spiro union portions 313 that are spirally connected, these internal thread 321 belows are provided with the wiring hole 322 of corresponding spiro union portion 313 lower end wiring holes 315, these internal thread 321 tops are provided with an electrode 323, one lead, the 33 1 ends spiro union portion 313 lower end wiring holes 315 that stretched through are respectively formed with conductive seat 32 with welding manner with conductive seat 32 wiring holes 322 and electrically connect, and other has the electrode 323 of a lead 33 1 ends with welding manner electric connection conductive seat 32 tops.

This bulb controller 40 is fixed in the built-in space 310 of king light seat 31, and connects with the other end of welding manner with two leads 33, this bulb controller 40 is formed with conductive seat 32 electrically connect.

Should go up to engage and cover 50, be set in king light seat 31 built-in spaces 310 downsides and support and be located at bulb controller 40 belows, it on it interior alcove 51, interior alcove 51 middle positions are arranged with at least one groove that Open Side Down 52 and a plurality of perforation 53, locking hole 54 is arranged on every side, by such as trip ... wait retaining element 55 pass the fixing hole 311 of king light seat 31 and locking hole 54 fixing go up to engage cover 50.

This radiating fin group 60, be combined as a up-narrow and down-wide radiator by a plurality of radiating fins 61, utilize default and last joint lid 50 53 at least one the corresponding locking hole 62 of boring a hole, by as screw, ... wait retaining element 63 to be spirally connected to be fixed on to engage and cover 50 bottoms, and between a plurality of locking holes 62, be provided with the through hole 64 corresponding with a plurality of groove 52, be provided with buried hole 641 at each through hole 64 end, moreover, these a plurality of radiating fin 61 ends are made as tip 611, so can alleviate radiating fin group 60 weight, it is attractive in appearance to increase heat-dissipating space and tool, and forms a spacing 612 to each other at each radiating fin 61, is beneficial to distribute heat; In addition, be provided with the recessed space 65 of putting, use for descending joint to cover 80 to be nested with in radiating fin group 60 bottoms.

These a plurality of heat pipes 70 are placed through terminal the joint down of radiating fin group 60 and cover in 80 the open-work 82 and central a plurality of through hole 64 thereof, this heat pipe 70 can be at least one, in preferred embodiment as shown in the figure, be made as three, these heat pipe 70 inside can be solid shape or hollow shape, the one end is a nose bar portion 71, support the solid joint of going up and cover 50 groove 52, the other end is curved to be made as one and to have reflection action and can produce spotlight effect by the outer swash plate 72 of heat pipe 70 belows, and these outer swash plate 72 bottoms are in order to set firmly with LED lamp group 90.

This time engages and cover 80 is the circular tower cylinder, be installed with at the recessed of radiating fin group 60 bottoms and put in the space 65, inside is alcove 81 in, and be provided with thereon and the corresponding open-work 82 of radiating fin group 60 through holes 64, and below the central authorities of open-work 82, be provided with holder 821, and between open-work 82, be provided with locking hole 822, by as screw, ... wait lock member 83 spiral shells solid, make down joint cover 80 and be fixed on radiating fin group 60 bottoms, in addition engage down cover 80 lower end peripheries form outside spiral shell portion 84, the inboard is provided with a plurality of fixed legs 841, this time engages the 80 interior spiral shell portions 861 with this outer spiral shell portion 84 and bulb shell 86 of cover and is spirally connected mutually, wherein bulb shell 86 outsides are the cloudy surface optical surface, inside is smooth mirror surface, can make light soft evenly, its inside has last hollow cavity 862, insert for a pallet 85, this pallet 85 is an overhead shape disk, fixed leg 841 places that corresponding joint down covers 84 inboards, 80 lower ends around the top are provided with a plurality of holddown grooves 850, in addition be provided with the slotted eye 851 corresponding with a plurality of heat pipe 70 in the nearly outer rim of end face, be provided with engaging down in each slotted eye 851 central authorities and cover the corresponding perforation 852 of 80 holders 821, utilization is as trip, ... wait retaining element 853 affixed.

These a plurality of LED lamp groups 90 are installed with in outer swash plate 72 bottoms of a plurality of heat pipes 70 and protrude out outside pallet 85 bottom surfaces, comprise a heat-conducting block 91, a LED lamp 92 and a substrate 93 at least, and wherein this heat-conducting block 91 is affixed to outer swash plate 72 bottoms; These LED lamp 92 1 sides are established a pole plate 921, opposite side is a light emitting diode 922, then be equipped with one on this light emitting diode 922 and protect frame 923, this substrate 93 is the printed circuit board (PCB) of a tool circuit, which is provided with open-work 931, be in order to embed LED lamp 92, and be provided with series circuit 932 in the one side, in order to its brightness is increased LED lamp 92 serial connections, and this substrate 93 is provided with a plurality of perforation 933, be used for fixing wearing of element 934 and substrate 93 is locked on the heat-conducting block 91, and this heat-conducting block 91 is the metal blocks of tool thickness and tool high-termal conductivity, is used to serve as the heat conduction media, with a side that is attached to LED lamp 92 pole plates 921 LED lamp 92 is started the heat loss that the back is sent, and be provided with a plurality of locking holes 911 in this heat-conducting block 91, through locking of retaining element 934 heat-conducting block 91 is combined with substrate 93 being used for.

Please cooperate Fig. 4,5 and shown in Figure 6 again, during the utility model combination, be provided with a bulb controller 40 in lamp socket 30 inside, these bulb controller 40 bottom surfaces covers 50 and are fixed to engage on one, last engage cover 50 bottom surfaces be fixed with the radiating fin group 60 of an inner sheathed at least one heat pipe 70 and once joint cover 80, be projected with a plurality of LED lamp groups 90 of corresponding a plurality of heat pipe 70 in these pallet 85 bottom surfaces, and cover the 80 peripheries bulb shell 86 that is built-in with pallet 85 that is spirally connected engaging down; As above-mentioned structure, the LED lamp group 90 that swash plate 72 bottoms are provided with outside a plurality of heat pipes 70 are held in addition produces high temperature heat when operating, see also shown in Figure 6, via of the hot cold exchange of a plurality of heat pipes 70 with radiating fin group 60, allow cold and hot separation, high temperature heat can be shed by each fin 61 loss that 70 conduction of a plurality of heat pipes are spread in radiating fin group 60, and more efficient heat is discharged.

Claims

1. A kind of LED lighting bulb structure, it is characterized in that, described lighting bulb structure comprises at least:

A lamp holder (30), including a main lamp holder (31) and a conductive holder (32), wherein a built-in space (310) is provided inside the main lamp holder (31);

A bulb controller (40), fixed in the lamp holder (30);

An upper joint cover (50), sleeved on the lower side of the built-in space (310) of the main lamp holder (31) and fixed under the light bulb controller (40), on which is an inner concave chamber (51), concave There are multiple grooves (52) on the chamber (51);

A cooling fin group (60) is fixed on the bottom surface of the upper joint cover (50), and is combined into a cooling body by a plurality of cooling fins (61), and a plurality of grooves (52) are arranged in the center of the cooling fin group ) corresponding to a plurality of through holes (64), the end of the through hole (64) is provided with a buried hole (641), and the bottom end of the cooling fin group (60) is provided with a recessed space (65);

The lower joint cover (80) is fixed in the recessed space (65) at the bottom of the cooling fin group (60), and the inside is an inner concave chamber (81). The lower joint cover is provided with a plurality of grooves (52 ) corresponding to a plurality of through holes (82), which are screwed on the outer periphery with a bulb housing (86) with a built-in tray (85);

A plurality of heat pipes (70) pass through the through holes (82) of the lower joint cover (80) at the end of the cooling fin group (60) and a plurality of through holes (64) in the center of the cooling fin group. The protruding rod part (71) is against the groove (52) of the upper joint cover (50), and the other end is bent to be an outer inclined plate (72);

A plurality of LED lamp groups (90), including a heat conduction block (91), an LED lamp (92) and a base plate (93), are fixed on the bottom of the outer inclined plate (72) of the plurality of heat pipes (70), and protrude Outside the bottom surface of the tray (85).

2. The structure of LED lighting bulb according to claim 1, characterized in that, the lower joint cover (80) is a round tower cylinder, with a plurality of through holes (82) arranged at the upper end, and fixed and fixed holes around the lower end. The fixing column (841) corresponding to the fixing slot (850) of the tray (85) is provided with a fixing seat (821) for fixing the tray (85) in the center of the inner alcove (81) at the bottom.

3. The structure of the LED lighting bulb according to claim 1, characterized in that, the ends of the plurality of heat dissipation fins (61) are set as pointed portions, and a distance between each heat dissipation fin (61) is formed ( 612).

4. The LED lighting bulb structure according to claim 1, characterized in that, the inside of the bulb housing (86) is an upper empty chamber (862) for a tray (85) to be inserted into, and the bulb housing (86) The outside of the body (86) is a matte optical surface, and the inside is a smooth mirror surface, so that the light is soft and avoids light diffusion.

5. The LED lighting bulb structure according to claim 1, characterized in that, the tray (85) is a hollow disc, and a plurality of solid or hollow heat pipes ( 70) the corresponding slot (851).

6. The LED lighting bulb structure according to claim 1, characterized in that, the LED lamp group (90) at least includes a heat conduction block (91) attached to the bottom of the outer inclined plate (72), a heat conduction block (91) arranged on the heat conduction block (91) LED lights (92) at the bottom and a substrate (93) that is interlocked with the heat conduction block (91). (92) has a plurality of through holes (931), and a series circuit for connecting the LED lamps (92) in series is provided on one side.

7. The LED lighting bulb structure according to claim 1, characterized in that, one side of the LED lamp (92) is provided with a polar plate (921), and the other side is a light-emitting diode (922), and the light-emitting diode (922) The upper ring is provided with a protective frame (923).

8. The LED lighting bulb structure according to claim 1, characterized in that the lower end of the screw joint (313) of the main lamp holder (31) and the lower end of the conductive seat (32) are respectively provided with a wiring hole (315), (322), one end of the wire (33) is passed through the connection hole (315) of the lower end of the screw joint (313) and the connection hole (322) of the conductive seat (32) respectively, and is formed with the conductive seat (32) by welding electrical connection.

9. The LED lighting bulb structure according to claim 1, characterized in that, the main lamp holder (31) is provided with a dismounting groove (312), which is convenient for disassembling and maintaining the bulb controller (40).