CN201339905Y

CN201339905Y - LED radiating module and LED lamp with high heat dissipation

Info

Publication number: CN201339905Y
Application number: CNU200820229104XU
Authority: CN
Inventors: 林明德; 王明煌; 蔡旭日; 苏军军; 林威谕; 蔡振江; 曾有助
Original assignee: CONCORD OPTO ELECTRIC TECH (QUANZHOU) Co Ltd
Current assignee: CONCORD OPTO ELECTRIC TECH (QUANZHOU) Co Ltd
Priority date: 2008-11-15
Filing date: 2008-11-15
Publication date: 2009-11-04
Anticipated expiration: 2018-11-15

Abstract

The utility model provides an LED radiating module and an LED lamp with high heat dissipation manufactured by the radiating module. The radiating module comprises a work surface for being assembled with LED components and radiating lateral surfaces, a plurality of threaded grooves are arranged on the radiating lateral surfaces at equal intervals, all the threaded grooves are located on an identical spiral line, and two ends of each threaded groove penetrate through the work surface respectively, and threaded fins are formed between each two adjacent threaded grooves. The radiating module is simple in manufacturing and high in processing and manufacturing efficiency, and can be processed and manufactured fast according to radiating design requirements of the LED lamp. The threaded fins are processed on the surface of the radiating module, thereby greatly increasing radiating area of the radiating module, smoothening convection passages, increasing heat dissipation of the LED lamp, prolonging the service life of the LED lamp, and having fine air convection effect and fine energy-saving effect.

Description

A kind of LED radiating module and high heat radiation LED lamp

Technical field

The high heat radiation LED lamp that the utility model relates to a kind of structure of LED radiating module and adopts this radiating module to make.

Background technology

Existing LED lamp radiator structure normally adopts aluminium extruded type or aluminium die casting mode to form the radiating module that has radiating fin, LED is put on the surface of radiating module, reaches radiating effect through the heat conduction.But, existing radiating module complex manufacturing technology, product cost height; And radiating effect is not good, directly influences the service life of LED light fixture.

The utility model content

To be solved in the utility model is existing LED lamp radiating module complex manufacturing technology, the unfavorable technical problem of radiating effect, a kind of LED lamp radiating module simple, high heat radiation of making is provided, improve the heat dispersion of radiating module, simplify the processing technology of radiating module, reduce the production cost of LED light fixture, prolong the service life of LED light fixture.

Another purpose of the present utility model is: a kind of high heat radiation, long service life, LED lamp bar that cost is low are provided.

The purpose of this utility model is achieved through the following technical solutions:

A kind of LED radiating module, it is characterized in that: described radiating module comprises working face and the heat radiation side surface that is used to assemble the LED assembly, offer a plurality of thread grooves of uniformly-spaced arranging on its heat radiation side surface, all thread grooves are positioned on the same helix and working face is run through at two ends respectively, form the thread fins of heat transmission between the adjacent thread groove.

Further, the cross section semicircular in shape of above-mentioned radiating module.

The working face of above-mentioned radiating module is the plane; Or the middle part offers the moulding working face that runs through radiating module length direction groove, and the bottom surface of this groove is formed for installing the installed surface of LED assembly; Or the middle part offers the moulding working face that runs through radiating module length direction groove, and both sides, the bottom surface correspondence of groove is offered the little groove that runs through the radiating module length direction, the strip small size projection that is formed for installing LED between two little grooves.

The processing method of above-mentioned radiating module is: at first, choose a cross section for circular aluminium matter or copper shape, this shape is cut into the section bar blank by the Len req size; Then, on light fixture dispels the heat the section bar blank surface of required area, adopt mechanical car's pin engage thread to produce the heat transmission thread fins of rule; The section bar blank that utilizes machining will have the heat transmission thread fins again cuts into the radiating module of two groups of symmetries along its length direction from the middle part; At last, adopt the radiating module cut surface after machining will be cut apart to be processed into LED assembly and the required moulding face of light fixture more respectively, just make above-mentioned radiating module.

The utility model also provides a kind of LED lamp bar of high heat radiation, comprises radiating module and is combined in LED, printed circuit board (PCB) on the radiating module; The both positive and negative polarity pin of LED is electrically connected with printed circuit board (PCB) respectively; It is characterized in that: described radiating module is the above-mentioned radiating module that has the heat transmission thread fins.

Further, be equipped with the afflux cover on the side of this radiating module, the afflux cover corresponding with the thread fins on radiating module middle part offers the heat transmission opening of arranging along its length, and opening is connected with screw channel between all adjacent thread fins.The heat dissipation design of neglecting greatly of afflux cover aperture area need and be decided.

Technical solutions of the utility model have following beneficial effect:

One, the production process of radiating module is simple, processing and fabricating efficient height, and radiating module can carry out the rapid processing manufacturing according to LED light fixture heat dissipation design demand.

Two, be located at the thread fins on radiating module surface, area of dissipation is big, and convection channel is smooth and easy, has good cross-ventilation effect, improves the heat dispersion of LED light fixture, prolongs the service life of improving the LED lamp, and has good energy-saving effect.

Three, utilize machining tool characteristic, but mobility produces diversified radiating module, satisfies the demand of different LED light fixture heat dissipation design, save the expense and the time of module die sinking, save processing cost, reduce product price, improve the competitiveness of product in market.

Description of drawings

Fig. 1 is the schematic perspective view of a kind of high-heat-dispersion LED lamp bar of providing of the utility model.

Fig. 2 is the upward view of Fig. 1.

Fig. 3 is the amplification view along A-A direction among Fig. 2.

Fig. 4 is the side view of the radiating module among Fig. 1.

Fig. 5 is the upward view of Fig. 4.

Fig. 6 is the schematic perspective view of the afflux cover that provides of the utility model.

Fig. 7 is the structural representation of the another kind of LED radiating module that provides of the utility model.

Fig. 8 is the amplification view along B-B direction among Fig. 7.

Fig. 9 is the structural representation of the radiating module among Fig. 7.

Figure 10 is the amplification view along C-C direction among Fig. 9.

Figure 11 is the structural representation of the third LED radiating module of providing of the utility model.

Figure 12 is the amplification view along D-D direction among Figure 11.

Figure 13 is the structural representation of the radiating module among Figure 12.

The specific embodiment

Embodiment 1: referring to figs. 1 through Fig. 3.A kind of LED lamp bar of high heat radiation comprises radiating module 1, is combined in LED 2, printed circuit board (PCB) 3 and afflux cover 4 on the radiating module.

Referring to figs. 1 through Fig. 5.Radiating module 1 adopts aluminium matter or copper shape, its cross section semicircular in shape.But, being not limited to this, the cross section of radiating module also can be square or other polygons.Radiating module 1 has one and is used to install the working face of LED 2, printed circuit board (PCB) 3, a heat radiation side face; Offer the screw channel 11 of equidistant layout on the side face of radiating module 1, all screw channels 11 are positioned on the helix of same rule; Form thread fins 12 between the adjacent screw channel 11.This radiating module production process is simple, processing and fabricating efficient height, and radiating module can carry out the rapid processing manufacturing according to LED light fixture heat dissipation design demand; Utilize machining tool characteristic, but mobility produces diversified radiating module, satisfy the demand of different LED light fixture heat dissipation design, save the expense and the time of module die sinking, save processing cost, reduce product price, improve the competitiveness of product in market.

With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 6.Afflux cover 4 secure fit on the side face of radiating module 1, the circular arc housing that the internal diameter of afflux cover 4 is suitable with radiating module 1 diameter, and the two ends correspondence is provided with end wall.The middle part of afflux cover 4 offers along its length the heat transmission opening of arranging 41 (seeing Fig. 6 for details), and this opening 41 is connected with all screw channels 11 on the radiating module.Afflux cover 4 is fixed together by snap device or securing member and radiating module 1, and fixed form does not between the two limit at this.

The lamp bar heat dissipation design of neglecting greatly of above-mentioned screw channel 11, afflux cover opening 41 need and be decided.

Referring to figs. 1 through Fig. 3.LED 2, printed circuit board (PCB) 3 adopt conventional approaches to be fixed on the mounting plane of radiating module 1, and the both positive and negative polarity pin of LED 2 electrically connects with printed circuit board (PCB) 3 respectively, forms electric loop.

Thread fins 12 on radiating module 1 side face increases considerably the efficiently radiates heat area, and screw channel 11, opening 41 form the heat radiation convection channel that is connected, and convection channel is smooth and easy, guarantees that the heat that LED produces can in time get rid of; Improve the radiating effect of LED lamp bar greatly, prolong the service life of LED lamp bar, and have good energy-saving effect.

Embodiment 2: present embodiment provides the LED lamp bar of another kind of version, present embodiment as different from Example 1:

With reference to Fig. 7 to Figure 10, offer the groove 13 that runs through the radiating module length direction at the installed surface middle part of radiating module 1, the bottom surface of this groove 13 is used for device LED 2, printed circuit board (PCB) 3.As can be seen, LED 2, printed circuit board (PCB) 3 adopt conventional approaches to be fixed on groove 13 bottom surfaces of radiating module 1 from Fig. 7, Fig. 8, and the both positive and negative polarity pin of LED 2 goes between respectively and is connected with printed circuit board (PCB) electricity 3.All the other structures are identical with the LED lamp bar that embodiment 1 provides, and do not give unnecessary details at this.

Embodiment 3: present embodiment provides the LED lamp bar of the third version, present embodiment as different from Example 1:

With reference to Figure 11 to Figure 13.Offer the groove 13 that runs through the radiating module length direction in the in-plane of radiating module 1, and offer the strip small size projection 15 that is formed for installing LED between 14, two the

little grooves

14,14 of little groove that run through the radiating module length direction in the both sides, bottom surface of groove 13 correspondence.

With reference to Figure 11, Figure 12.Correspondence is pasted with printed circuit board (PCB) 31,32 in two little grooves 14, and LED2 fixedly is mounted on the strip small size projection 15 by its radiating end, and the both positive and negative polarity pin of LED 2 electrically connects with the printed circuit board (PCB) 31,32 of both sides respectively, forms electric loop.Because the radiating end of LED 2 directly is mounted on the strip small size projection 15 of radiating module, the heat that LED 2 is produced is directly derived by radiating module 1, further improves the radiating effect of lamp bar.All the other structures are identical with the LED lamp bar that embodiment 1 provides, and no longer are described in detail at this.

Claims

1. LED radiating module, it is characterized in that: described radiating module comprises working face and the heat radiation side surface that is used to assemble the LED assembly, offer a plurality of thread grooves of uniformly-spaced arranging on its heat radiation side surface, all thread grooves are positioned on the same helix and working face is run through at two ends respectively, form the thread fins of heat transmission between the adjacent thread groove.

2. LED radiating module according to claim 1 is characterized in that: the cross section semicircular in shape of described radiating module.

3. LED radiating module according to claim 1 is characterized in that: the working face of described radiating module is the plane.

4. LED radiating module according to claim 1 is characterized in that: the working face middle part of described radiating module offers the groove that runs through the radiating module length direction; The bottom surface of this groove is formed for installing the installed surface of LED assembly.

5. LED radiating module according to claim 1 is characterized in that: the working face middle part of described radiating module offers the groove that runs through the radiating module length direction; The both sides correspondence of this groove floor is offered the little groove that runs through the radiating module length direction, the strip small size projection that is formed for installing LED between two little grooves.

6. the LED light fixture of a high heat radiation comprises radiating module and is combined in LED, printed circuit board (PCB) on the radiating module; The both positive and negative polarity pin of LED is electrically connected with printed circuit board (PCB) respectively; It is characterized in that: described radiating module is the arbitrary described radiating module that has the heat transmission thread fins of claim 1 to 5.

7. LED light fixture according to claim 6 is characterized in that: be equipped with the afflux cover on the side surface of described radiating module, the middle part of this afflux cover offers along its length the heat transmission opening of arranging and being connected with all screw channels on the radiating module.

8. LED light fixture according to claim 6, it is characterized in that: correspondence is pasted with printed circuit board (PCB) in two little grooves of described radiating module, LED fixedly is mounted on the strip small size projection by its radiating end, and the both positive and negative polarity pin of LED electrically connects with corresponding printed circuit board (PCB) respectively.