CN201547732U - LED lamp heat dissipation device - Google Patents
LED lamp heat dissipation device Download PDFInfo
- Publication number
- CN201547732U CN201547732U CN2009203153412U CN200920315341U CN201547732U CN 201547732 U CN201547732 U CN 201547732U CN 2009203153412 U CN2009203153412 U CN 2009203153412U CN 200920315341 U CN200920315341 U CN 200920315341U CN 201547732 U CN201547732 U CN 201547732U
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- Prior art keywords
- fin
- mount pad
- heat sink
- convex tendon
- led heat
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
An LED lamp heat radiating device relates to an LED lamp. The weight of the current radiator substantially exceeds that of a traditional bulb, and the radiator has larger volume and a large amount of material consumption, the problems become a bottleneck in the generalization and application of the LED lamp. The LED lamp heat radiating device comprises a mounting seat, and a radiating fin connected with the mounting seat, wherein the mounting seat is provided with a radiating fin insertion slot, and the radiating fin and the insertion slot realize interference fit by adopting a mode of applying pressure externally to lead the radiating fin to be clamped in the insertion slot. As the radiating fin is directly contacted with the mounting seat, the thermal resistance is small, the contact area is large, the heat dissipation effect is good, the volume is small, the heat dissipation device has light weight and low cost, the shape of the mounting seat is simple, the mounting is convenient for machine-forming, the defective index is low, and the production efficiency is high.
Description
[technical field]
The utility model relates to a kind of LED lamp, refers to the heat abstractor of LED lamp especially.
[background technology]
Four major parts that comprise light source, radiator, driver, secondary optical system at present as the LED lamp, the radiator of this class light fixture all is to make with stretching aluminium section bar or die casting aluminium on the existing market, for increasing area of dissipation, outer surface is made the fin shape more, fin is spoke-like and distributes or parallel distribution, and it is a monolithic construction, an end fixed L ED of radiator, and the heat that produces when LED worked is passed on the fin heat radiation.This heatsink weight substantially exceeds traditional bulb, and volume is big, consumptive material is many, and these all become the bottleneck of LED lamp in applying.
[utility model content]
The technical assignment of the technical problems to be solved in the utility model and proposition is that the prior art scheme is improved and improved, and a kind of LED heat sink for lamp is provided, and metal consumption is few, volume is little to reach, good, the easy to process purpose of heat fruit is imitated in heat radiation.For this reason, the utility model is taked following technical scheme:
The LED heat sink for lamp is characterized in that: it comprises mount pad, the fin that is connected with mount pad, and described mount pad is established the fin inserting groove, and described fin and inserting groove are interference fit so that the fin card ends in inserting groove.Now heat abstractor is decomposed into mount pad and fin, mount pad is used to install LED and fixing cooling fins, and fin then is used for heat radiation; Mount pad can be made by the high thermal conductivity materials of the certain mechanical strength of tool, as aluminium alloy or Cu alloy material etc., fin can adopt light weight, material that thermal conductivity is high to make, as laminar metal material, as copper or aluminium, also can be carbon materials, as graphite, nano-sized carbon, composite carbon element material etc., can also be ceramic material, as aluminium nitride, aluminium oxide etc.; Mount pad and fin are made respectively, are guaranteeing effectively to reduce weight, the cost of heat abstractor under the prerequisite of function separately; Fin and inserting groove are interference fit so that the fin card ends in inserting groove, the grafting cell wall of fin and mount pad directly attaches, contact-making surface is big, and there is not thermal resistance material in the centre, and the heat that led light source produces is directly passed to the fin of being close to mount pad by mount pad, heat is transmitted fast, rapid heat dissipation is compared the product device of same radiating effect, and heat abstractor volume of the present utility model is little, in light weight, be convenient to Design of Luminaires, installation.If adopt the mode of welding between fin and the mount pad, though can obtain good thermally coupled and mechanical strength, but the selection to fin has certain restriction, fin as carbon nanomaterial can't directly weld, even the fin of aluminum, welding be difficulty comparatively also, require operating personnel's weld horizontal height, otherwise easily produce situations such as leaking weldering, influence heat is transmitted.If adopt the mode of bonding, will form a tack coat between fin and the mount pad, the thermal conductivity of tack coat is no more than 2.0W/MK usually, and this will form thermal resistance one by between, influences radiating effect.Fin of the present utility model and inserting groove are realized interference fit in the mode that external pressurized narrows down inserting groove.
As the further of technique scheme improved and replenish, the utility model also comprises following additional technical feature:
Described mount pad is established convex tendon, and described inserting groove is established in the centre of described convex tendon, and the both sides of convex tendon are the face of exerting pressure.The both sides of convex tendon are that the face of exerting pressure is used to pressurize the inserting groove of convex tendon is narrowed down, thereby the fin that will be plugged in the inserting groove clamps.Can adopt pressing mode of machinery, increase work efficiency, guarantee product quality.
Described mount pad is tabular, and described convex tendon parallel arrangement is in the back side of mount pad.Shapes such as mount pad can be rectangular, circle, a plurality of convex tendon parallel arrangements are on mount pad, and mount pad can adopt foundry goods or stretching aluminium section bar, establishes the mount pad production efficiency height of convex tendon, and is low than the percent defective of integrated radiating device.
The lower end of described fin is provided with holder, and described holder is provided with the stopper slot that matches with fin.The stopper slot of holder is used to reinforce the location of fin, and holder can be connected by connector with mount pad.Connector can be screw rod etc.
Described mount pad is cylindric, and described convex tendon is parallel with cylinder axis and be distributed in arc-shaped surface.Columned mount pad end face can be used for fixed L ED, circular arc side grafting fin.
The end face of described cylindricality mount pad and bottom surface are fixed a limiting plate respectively.Limiting plate supports the dual-side of fin, is used for restriction and protection fin.
Described limiting plate is established a plurality of louvres, and limiting plate is fixed on the mount pad by connector.Louvre is used for circulation of air to accelerate heat radiation.Connector can be screw, also can be bonding agent etc.
That the convex tendon cross section is is trapezoidal, rectangle or involute profile.
Described convex tendon cross section is isosceles or right-angled trapezium, and end face is short than the bottom surface.Be convenient to realize machining, when the mould that matches pressed down, the inclined-plane had guide effect, the convenient fin that clamps.
Described fin adopts metal material, carbon materials or ceramic material.The range of choice of material is big, the restriction of condition such as is not welded.
Beneficial effect:
1, since fin and mount pad for directly to contact, thermal resistance is little, and contact area is big, good heat dissipation effect, under same radiating efficiency, the heat abstractor volume of this structure is little.
2, fin and mount pad are two parts, thus can adopt different materials, with minimizing heat abstractor weight, the product that reduces cost,
3, the mount pad simple shape is convenient to machine-shaping, and percent defective is low.
4, in process of production, especially fin fixedly the time, can adopt automatically processing of machinery, effectively enhance productivity.
[description of drawings]
Fig. 1 is first kind of structural representation of the utility model;
Fig. 2 is the utility model mount pad structural representation;
Fig. 3 is second kind of structural representation of the utility model;
Fig. 4 is the third structural representation of the utility model;
Fig. 5 is the another kind of structural representation of the utility model mount pad;
Fig. 6 is a kind of processing schematic diagram of the utility model;
Fig. 7 is the another kind of processing of a utility model schematic diagram.
[specific embodiment]
Below in conjunction with Figure of description the technical solution of the utility model is described in further detail.
As shown in Figure 1, 2, fin 2 mount pads 1 that heat abstractor comprises mount pad 1, be connected with mount pad 1 are established fin 2 inserting grooves 3, can pass through connector fixed L ED light source 10 on the mount pad, and connector can be screw, tack coat etc.Fin 2 and inserting groove 3 be interference fit so that fin 2 cards only in inserting groove 3.Mount pad 1 is established convex tendon 4, and that convex tendon 4 cross sections can be is trapezoidal, rectangle or involute profile, and convex tendon 4 cross sections shown in the figure are isosceles trapezoid, and its end face is short than the bottom surface.Inserting groove 3 is established in the centre of convex tendon 4, and the both sides of convex tendon 4 are the face of exerting pressure 41; The lower end of fin 2 is provided with holder 5, and holder 5 is provided with the stopper slot 6 that matches with fin 2.Mount pad 1 is tabular, and convex tendon 4 parallel arrangements are in the back side of mount pad 1.Mount pad 1 can be rectangle, also can be as shown in Figure 3, and in the form of annular discs, be to accelerate heat radiation, can mount pad 1 and or holder 5 on establish louvre 7, accelerate heat radiation, hot-air outwards distributes through the louvre 7 of holder 5 or the gap between the fin 2 by mount pad 1 louvre 7.Fin 2 adopts metal material, carbon materials or ceramic material.
Shown in Fig. 4,5, it is cylindric that mount pad 1 also can be, and convex tendon 4 is parallel with cylinder axis and be distributed in arc-shaped surface, and fin 2 is spoke-like row and establishes.In order to make the fin 2 can be better fixing, can set up limiting plate 8 at the two ends of mount pad 1, equally also can on limiting plate 8, offer a plurality of louvres 7 and be used for heat radiation.
The processing method that we are bright:
1) mount pad 1 procedure of processing is made the mount pad 1 of being with convex tendon 4;
2) inserting groove 3 procedure of processings behind the centering location and installation seat 1, are opened corresponding inserting groove 3 with mach mode on convex tendon 4, the width of inserting groove 3 is slightly larger than fin 2;
3) grafting fin 2 steps are inserted fin 2 in the inserting groove 3;
4) distortion clamps step, is exerted pressure in convex tendon 4 both sides, makes inserting groove 3 to internal strain, and fin 2 cards are ended in inserting groove 3;
5) peg graft in the stopper slot 6 of holder 5 in the lower end of fin 2, is connected by screw rod etc. between holder 5 and the mount pad 1.
As shown in Figure 6, clamp in the step in distortion, adopt the pressing mold 9 that matches with convex tendon 4, in the approaching process of pressing mold 9 and mount pad 1, the face of exerting pressure 41 of pressing mold 9 extruding convex tendons 4 both sides makes convex tendon 4 compressive deformations and blocks only fin 2.
As shown in Figure 7, clamp in the step in distortion, employing clamps fin 2 from every muscle two mode that face 41 compresses to the centre of exerting pressure, clamping force can come from elastic component, as spring, also can come from pressure cylinder, the method is comparatively flexible, can adjust according to width, the quantity of different convex tendon 4, to adapt to different heat abstractors.
The mount pad 1 of convex tendon 4 can adopt the mode of stretching or die casting to make.Inserting groove 3 can process with milling cutter, the slightly wide 0.1-0.2mm of the thickness of the width of inserting groove 3 and fin 2 before pressurization, because of fin 2, inserting groove 3 in process, there is mismachining tolerance, as flatness error etc., so reserve the gap of 0.1-0.2mm, it is fastening conveniently to peg graft and pressurize, groove depth is 2-5mm, groove is too deeply then processed inconvenience, chip removal difficulty, cutting force are big, weaken mount pad 1 intensity, and be too shallow, then fin 2 is fixing insecure, and contact-making surface is little and influence heat is transmitted, and the groove depth of 3-4mm is the most suitable, takes into account mount pad 1 intensity and thermal diffusivity.
Claims (10)
1.LED heat sink for lamp, it is characterized in that: it comprises mount pad (1), the fin (2) that is connected with mount pad (1), described mount pad (1) is established fin (2) inserting groove (3), described fin (2) and inserting groove (3) be interference fit so that fin (2) card only in inserting groove (3).
2. LED heat sink for lamp according to claim 1 is characterized in that: described mount pad (1) is established convex tendon (4), and described inserting groove (3) is established in the centre of described convex tendon (4), and the both sides of convex tendon (4) are the face of exerting pressure (41).
3. LED heat sink for lamp according to claim 2 is characterized in that: described mount pad (1) is tabular, and described convex tendon (4) parallel arrangement is in the back side of mount pad (1).
4. LED heat sink for lamp according to claim 3 is characterized in that: the lower end of described fin (2) is provided with holder (5), and described holder (5) is provided with the stopper slot (6) that matches with fin (2).
5. LED heat sink for lamp according to claim 2 is characterized in that: described mount pad (1) is cylindric, and described convex tendon (4) is parallel with cylinder axis and be distributed in arc-shaped surface.
6. LED heat sink for lamp according to claim 5 is characterized in that: the end face of described cylindricality mount pad (1) and bottom surface are fixed a limiting plate (8) respectively.
7. LED heat sink for lamp according to claim 6 is characterized in that: described limiting plate (8) is established a plurality of louvres (7), and limiting plate (8) is fixed on the mount pad (1) by connector.
8. according to the described LED heat sink for lamp of the arbitrary claim of claim 2-7, it is characterized in that: described convex tendon (4) cross section is trapezoidal, rectangle or involute profile.
9. LED heat sink for lamp according to claim 8 is characterized in that: described convex tendon (4) cross section is isosceles or right-angled trapezium, and end face is short than the bottom surface.
10. LED heat sink for lamp according to claim 9 is characterized in that: described fin (2) adopts metal material, carbon materials or ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203153412U CN201547732U (en) | 2009-11-20 | 2009-11-20 | LED lamp heat dissipation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203153412U CN201547732U (en) | 2009-11-20 | 2009-11-20 | LED lamp heat dissipation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547732U true CN201547732U (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203153412U Expired - Fee Related CN201547732U (en) | 2009-11-20 | 2009-11-20 | LED lamp heat dissipation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201547732U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155726A (en) * | 2011-01-07 | 2011-08-17 | 甘卫星 | Modularized LED radiator and processing method thereof |
| CN101839414B (en) * | 2010-01-12 | 2012-09-05 | 浙江迈勒斯照明有限公司 | LED light source with heat dissipation device and processing method thereof |
| CN102679180A (en) * | 2011-03-07 | 2012-09-19 | 浙江迈勒斯照明有限公司 | Illumination lamp module of LED (light emitting diode) light source |
| CN105423255A (en) * | 2015-12-21 | 2016-03-23 | 苏州佳亿达电器有限公司 | Efficient heat dissipation device for LED lamps |
| CN113566161A (en) * | 2021-05-31 | 2021-10-29 | 深圳市乐思远灯具有限公司 | Lamp radiator, manufacturing method thereof and lamp |
-
2009
- 2009-11-20 CN CN2009203153412U patent/CN201547732U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839414B (en) * | 2010-01-12 | 2012-09-05 | 浙江迈勒斯照明有限公司 | LED light source with heat dissipation device and processing method thereof |
| CN102155726A (en) * | 2011-01-07 | 2011-08-17 | 甘卫星 | Modularized LED radiator and processing method thereof |
| CN102679180A (en) * | 2011-03-07 | 2012-09-19 | 浙江迈勒斯照明有限公司 | Illumination lamp module of LED (light emitting diode) light source |
| CN105423255A (en) * | 2015-12-21 | 2016-03-23 | 苏州佳亿达电器有限公司 | Efficient heat dissipation device for LED lamps |
| CN113566161A (en) * | 2021-05-31 | 2021-10-29 | 深圳市乐思远灯具有限公司 | Lamp radiator, manufacturing method thereof and lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20140529 Granted publication date: 20100811 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20141129 Granted publication date: 20100811 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20150609 Granted publication date: 20100811 |
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| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20151209 Granted publication date: 20100811 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20141120 |
|
| EXPY | Termination of patent right or utility model |