CN201066109Y - Light source heat radiation structure - Google Patents

Abstract

The utility model relates to a light source heat radiation structure, it is including a conduction board and a heat dissipation shell, and this conduction board has a heat absorption surface, and with the corresponding heat that absorbs the light source in this heat absorption surface, should dispel the heat shell then around outside this conduction board, and at least one side of this conduction board is connected in this heat dissipation shell inner wall. The utility model discloses simple structure, with low costs and can dispel the heat fast to it has the configuration space to reserve between heat dissipation shell and this heat conductor.

Description

Light source cooling structure

technical field

The present invention relates to a heat dissipation structure, in particular to a light source heat dissipation structure.

Background technique

At present, most of the common light source equipment is based on traditional light bulbs. For example, the commonly used flashlights use light bulbs to emit light, and the commonly used light bulbs have disadvantages such as fragility, power consumption, and large size. Today's industrial R&D personnel want to make lighting equipment more Practicality. A new light source structure using light-emitting diodes (hereinafter referred to as LEDs) has begun to appear on the market. Because LEDs themselves have excellent characteristics such as durability, power saving, and small size, they are indeed very suitable for replacing commonly used light bulbs;

However, due to the small size and low power of traditional LEDs, the luminosity produced by the LEDs is insufficient. Therefore, the existing LED flashlights need to use multiple LEDs to supplement the luminosity. It is also more labor-intensive;

In order to improve the above-mentioned problems, currently some related companies use high-power LEDs to replace many ordinary LEDs. Although the high-power LEDs can meet the luminosity, the heat energy emitted by them must be solved immediately, otherwise it will definitely affect To ensure the life of high-power LEDs; in order to solve the heat dissipation problem of high-power LEDs, the existing products are equipped with round tubes made of aluminum extrusions outside the high-power LEDs, and the back of the high-power light-emitting diodes can be pasted through the circuit board. It is installed on a heat conduction plate, and finally the heat conduction plate is positioned at the opening of the heat dissipation device, so that the high-power light-emitting diode transmits heat energy to the outside of the circular tube body of the heat dissipation device through the heat conduction plate for dissipation.

However, when the above-mentioned high-power light-emitting diode conducts heat energy, it not only needs to pass through the heat-conducting plate of the above-mentioned heat dissipation device to indirectly conduct heat energy to the round tube body, but also the heat-conducting plate is only bonded to the round tube body at the outer edge and opened. At a ring edge in the mouth, the contact area is very small, so its heat dissipation effect still needs to be strengthened.

In view of the shortcomings of the aforementioned first type of existing heat dissipation device for high-power light-emitting diodes, a second type of prior art has emerged on the market. Through the integrally formed structure of heat dissipation columns, multiple fins, and round tubes, although it can The heat energy is directly conducted to the entire circular tube body, which solves the problem of the first prior art, but the following problems still arise after its practical use:

First, the structural design of the central heat dissipation column with multiple fins is relatively complicated, and the manufacturing process cost and cleaning cost of aluminum extrusion technology are naturally high;

Second, the plurality of fins protrude from the central heat dissipation column to connect with the inner wall of the circular tube, resulting in no space available for accommodating components between the central heat dissipation column and the circular tube body, which also reduces the future expansion of this existing product possibility.

In order to effectively solve the above-mentioned related problems, the designer of this new model finally developed a light source heat dissipation structure based on past research and development technology and experience.

Utility model content

The primary purpose of the present invention is to provide a heat dissipation structure for a light source with reserved space for a light source circuit and expansion components.

The second object of the present invention is to provide a light source heat dissipation structure with simple structure and low cost.

Another object of the present invention is to provide a heat dissipation structure for a light source that can be connected with an assembled grounding line.

In order to achieve the above object, the heat dissipation structure of the light source of the present invention includes a conduction plate and a heat dissipation shell, the conduction plate has a heat absorbing surface, and the heat absorbing surface absorbs the heat of the light source correspondingly, and the heat dissipation shell surrounds the conduction plate In addition, the two sides of the conduction plate are connected to the inner wall of the heat dissipation shell; thereby, the new model can quickly dissipate heat, and a configuration space is reserved between the heat dissipation shell and the heat conductor, which not only effectively accommodates accessories of current products, but also A space can be reserved for future power supply design expansion.

It should be explained here that the heat conduction plate and the heat dissipation shell can be integrally made of aluminum, copper, ceramics, silver or the aforementioned metal alloys, and the shape of the heat dissipation shell can be a closed tube shape, a corner column shape or a cup shape, or It can be unclosed tube type, corner column type or cup type; in addition, the heat-absorbing surface of the conduction plate and the light source can be directly welded and fixed; and the heat-absorbing surface of the conduction plate and the light source can also be installed with a metal The heat conduction sheet, solder, and coated with heat dissipation paste or heat dissipation glue can conduct quickly; in addition, the heat absorbing surface can be protruded to form a step edge for the positioning of the light source circuit board.

Importantly, another key point of the new model is that the outer wall of the heat dissipation shell is made with a concave-convex heat dissipation structure to increase the heat dissipation area of the heat dissipation shell in contact with the air and effectively improve the heat dissipation efficiency of the product. The shape of the concave-convex heat dissipation structure can be sawtooth type, complex ring type or evenly distributed dots.

In addition, the new model can locate a light source seat connected to the transmission electrode at the opening of the other end of the heat dissipation shell, and the conductive plate extends from the opening of the heat dissipation shell to the light source seat. A positioning hole is pierced on the lug part of the light source, and the positioning hole is used for the winding and positioning of the light source electrode, and the electrode is pressed against the inner wall of the light source seat; the effect of connecting and assembling the grounding line of the present invention is achieved.

The beneficial effect of the present invention is that: the heat dissipation structure of the light source of the present invention comprises a conduction plate and a heat dissipation shell, the conduction plate has a heat-absorbing surface, and the heat-absorbing surface absorbs the heat of the light source correspondingly, and the heat dissipation shell surrounds the conduction plate outside the plate, and the two sides of the conduction plate are connected to the inner wall of the heat dissipation shell. Since there is a configuration space reserved between the heat dissipation shell and the heat conductor, it can effectively accommodate the accessories of current products and provide space for future power supply design expansion; in addition, the design structure of the new conductive plate and heat dissipation shell is simple, The cost is reduced, and heat dissipation can be effectively performed; the present invention can also achieve the effect of connecting and assembling grounding lines together.

Description of drawings

Fig. 1 is the perspective view of the structure of the new embodiment.

Fig. 2 is the cross-sectional view of the combined circuit components of the new embodiment.

Fig. 3 is another enlarged cross-sectional view of another embodiment of the novel conductive plate.

Fig. 4 is the perspective view of the appearance of another embodiment of the novel cooling case.

Figure 5 is a cross-sectional exploded view of the conduction plate with positioning holes for electrode winding assembly.

Figure 6 is a cross-sectional view of the conduction plate with positioning holes for electrode winding and assembly.

Figure 7 is a perspective view of only one side of the conductive plate connected to the inner wall of the heat dissipation shell.

Figure 8 is a diagram of the implementation state of the closed cup-shaped cooling case.

Figure 9 is a cross-sectional view of another combined circuit component of the new embodiment.

conduction plate 10 heat absorbing surface 11 thermal grease 111

Lug part 12 Positioning hole 121

Heat dissipation shell 20 inner wall 21

Opening port 22 Accommodating step 221

Configuration space 23 Open port 24

Circuit board 30 Light source 31

Control 32 Electrodes 33 34

Concave-convex heat dissipation structure 40

Light source seat 50

Detailed ways

Please refer to the embodiment of the new model shown in Figures 1 and 2, the heat dissipation structure of the light source includes a conductive plate 10 and a heat dissipation shell 20, and the conductive plate 10 is used to carry and assemble the circuit control part 32 and the circuit board 30 with the LED light source 31, and The circuit control part 32, the LED light source 31 and the circuit board 30 are electrically connected. In the second figure, the circuit board 30 has a through hole under the LED light source 31, wherein:

The conduction plate 10 is a plate-like body with a uniform cross-sectional shape, and has a heat-absorbing surface 11 above it, and the heat-absorbing surface 11 of the conduction plate 10 corresponds to the through hole below the circuit board 30, and the heat-absorbing surface 11 is coated with heat dissipation Paste 111 is pasted under the LED light source 31, and the heat absorbing surface 11 absorbs the heat of the LED light source 31 accordingly;

The heat dissipation case 20 is a cylindrical body, and the heat dissipation case 20 surrounds the conduction plate 10, and the two sides of the conduction plate 10 are integrally connected to the inner wall 21 of the heat dissipation case 20, and one side of the heat dissipation case 20 is open. The opening 22 is slightly higher than the conduction plate 10 to form a receiving step 221, and the opening 24 on the other side makes the conduction plate 10 protrude, and the receiving step 221 is used for accommodating and positioning the circuit board 30. In addition, the heat dissipation shell A sufficient configuration space 23 is generated between the conductive plate 10 and the conductive plate 10, and the circuit control part 32 is screwed and positioned by the configuration space 23;

The above is the description of the components and their interrelationships in the embodiment of the present invention.

In order to clearly illustrate the various implementations of the present invention, it is now described in conjunction with the present invention shown in Figure 2:

The conduction plate 10 of the present invention is a plate-shaped body with the same cross-sectional shape, and the heat dissipation shell 20 is a cylindrical body, and the heat dissipation shell 20 surrounds the conduction plate 10, and the two sides of the conduction plate 10 are integrally connected to the heat dissipation shell The inner wall 21 of 20, so when the new model is used in aluminum extrusion technology, the simplified design of the conductive plate 10 and the heat dissipation shell 20 of the new model can effectively reduce the cost of the manufacturing process and the cost of cleaning.

When the circuit control part 32 controls the operation of the LED light source 31 and the circuit board 30, the conduction plate 10 is pasted under the LED light source 31 with the heat-absorbing surface 11 using thermal paste 111, and the heat-absorbing surface 11 absorbs the LED accordingly. The heat from the light source 31 is transferred to the inner wall 21 of the heat dissipation shell 20 from the integral connection of the two sides of the conduction plate 10, and the heat dissipation shell 20 is then transferred to the outer wall by the inner wall 21 to dissipate; effectively achieve the effect of heat dissipation.

What is important is that the heat dissipation case 20 of the present invention is surrounded by the conduction plate 10, and the inner wall 21 of the heat dissipation case 20 is sufficiently formed between the heat dissipation case 20 and the conduction plate 10, so the present invention can use the configuration space 23 to lock and position the heat dissipation case. The circuit control part 32, and the sufficient configuration space 23 also reserves the placement design of the future light source circuit and expansion components, which effectively improves the expandability and configuration convenience of the present invention.

Referring to Fig. 3 again, the conduction plate 10 of the present invention can make another protruding step edge 112 on the corresponding circuit board 30 on the heat absorbing surface 11, and supply the light source through the protruding step edge 112 and the accommodating step 221 of the heat dissipation shell 20 Circuit board 30 positioning; In addition, the circuit control part 32 in this embodiment is directly directly welded on the bottom surface of this circuit board 30 with the contact point of the edge, no longer needs screw locking position, and the circuit board 30 in this embodiment can be It is a variety of metal substrates such as aluminum-based PCB boards.

Fig. 4 is a three-dimensional appearance view of another embodiment of the heat dissipation case of the present invention. The outer wall of the heat dissipation case 20 can be made with a concave-convex heat dissipation structure 40, and the concave-convex heat dissipation structure 40 is used to increase the heat dissipation area of the outer wall of the heat dissipation case 20 in contact with the air, effectively To improve the heat dissipation efficiency of the product, the shape of the concave-convex heat dissipation structure 40 can be similar to a zigzag shape, a plurality of rings, or an evenly distributed point design.

In addition, it is also disclosed in FIG. 4 that the area of the integrated connection on both sides of the conductive plate section 10 gradually increases from the direction of the LED light source 31 toward the joint of the heat dissipation shell 20, so that the heat of the LED light source 31 can be evenly distributed to the heat dissipation shell. The inner wall of 20 also allows the heat to be dissipated to the concave-convex heat dissipation structure 40 synchronously and evenly, and will not be too concentrated at the integral connection of the two sides of the conductive plate section 10 .

Finally, please refer to Figures 5 and 6, the opening 24 at the other end of the heat dissipation shell 20 of the present invention allows the conduction plate 10 to protrude from a lug 12, and the opening 24 of the heat dissipation shell 20 is also positioned with a connecting electrode. 33 to 34 of the light source seat 50, and the lug portion 12 of the conductive plate 10 is provided with a positioning hole 121, the positioning hole 121 is used for the winding and positioning of the ground electrode 34, and the electrode 34 is placed between the heat dissipation shell 20 and the light source seat 50 While assembling, the effect of making the electrode 34 abut against the inner wall of the light source base 50 is easily achieved, and the light source base 50 is also connected to the ground electrode 34 while being assembled; therefore, the present invention can be assembled and connected to the grounding circuit at the same time.

Please refer to Fig. 7, Fig. 7 shows that only one side of the conductive plate 10 is connected to the inner wall of the heat dissipation shell 20, thereby, the new model will have a larger configuration space 23, and sufficient configuration space 23 is also reserved The placement design of the future light source circuit and expansion components effectively improves the expandability and configuration convenience of the new model.

In addition, Fig. 8 shows that the heat dissipation shell 20 of the present invention adopts a closed cup-shaped implementation state. If the closed cup-shaped outer edge of the heat dissipation shell 20 is extended outward, the present invention can be installed on the closed cup-shaped edge of the heat dissipation shell 20. Refraction design.

Finally, the new configuration space 23 also reserves the placement design of future light source circuits and expansion components, and is not limited to screw locking, gluing and other general methods; it is disclosed in FIG. 9 that the new control unit 32 can be configured by The space 23 protrudes from the electrode welding and is fixed on the circuit board 30 , and is directly fixed in the configuration space 23 by electrode welding.

Here, the characteristic effect after the improvement of the novel structure is re-summarized as follows:

1. This new model has a light source heat dissipation structure reserved for the configuration of the light source circuit and expansion components.

2. The design of the conduction plate 10 and the heat dissipation shell 20 of the present invention effectively achieves simple structure and reduced cost.

3. After the conduction plate 10 of the present invention cooperates with the heat dissipation case 20 and the light source seat 50, it can be connected and assembled with a grounding circuit.

Claims (15)

1. a light source heat radiation structure adopts Heat Conduction Material to make and assemble for light source, it is characterized in that including:

One conductive plate has the heat absorption surface, and the heat of the surperficial respective absorption light source that should absorb heat; And

One heat radiation shell is centered around outside this conductive plate, and this heat radiation shell inwall connects at least one side of this conductive plate, formation preset configuration space between heat radiation shell and conductive plate.

2. light source heat radiation structure according to claim 1 is characterized in that, these conductive plate two sides are connected with heat radiation shell one, and the heat absorption surface of this conductive plate abuts on the light source.

3. light source heat radiation structure according to claim 1 is characterized in that, installs in addition between the heat absorption surface of this conductive plate and the light source and is provided with conduction material.

4. light source heat radiation structure according to claim 2 is characterized in that, this conductive plate is the plate body of cross sectional shape unanimity.

5. light source heat radiation structure according to claim 1 is characterized in that, the sectional area of these conductive plate two side junctions increases towards this heat radiation shell joint flaring from light source direction, on average scatters heat to this heat radiation shell inwall with this.

6. light source heat radiation structure according to claim 1, it is characterized in that, this heat radiation shell outer wall is made concavo-convex radiator structure, and increasing the area of dissipation that this heat radiation shell joint touches air, this concavo-convex radiator structure can be that cross section sawtooth pattern, plural number are ring-like or on average scatter point-like.

7. light source heat radiation structure according to claim 1, it is characterized in that, this heat radiation shell other end opening port allows this conductive plate stretch out a protruding pinna outward, the opening port place of heat radiation shell is positioned with one in addition and is connected the light source base that transmits light source two electrodes, and be equipped with locating hole on the protruding pinna of this conductive plate, twine the location with this locating hole for earth electrode, and make this electrode be connected with reaching to replace when light source base makes up at the heat radiation shell.

8. light source heat radiation structure according to claim 1 is characterized in that, the cup type of the cast that this heat radiation shell moulding can be a closed, the corner post type of closed, closed, not cast, not the corner post type or the cup type of closed not of closed of closed.

9. a light source heat radiation structure adopts Heat Conduction Material to make and supply led light source and circuit board assembling thereof, it is characterized in that including: at least one conductive plate, have the heat absorption surface, and the heat of the surperficial respective absorption light source that should absorb heat; And one the heat radiation shell, be centered around outside this conductive plate, and the circuit board of led light source be positioned at the heat radiation shell in, this heat radiation shell inwall connects at least one side of this conductive plate, between heat radiation shell and conductive plate, form the preset configuration space, and this heat radiation shell outer wall is made concavo-convex radiator structure.

10. light source heat radiation structure according to claim 9 is characterized in that, this concavo-convex radiator structure can be the cross section sawtooth pattern, plural number is ring-like or on average scatter point-like.

11. light source heat radiation structure according to claim 9 is characterized in that, this conductive plate and heat radiation shell are that one is formed by connecting, and the heat absorption surface of this conductive plate abuts on the light source.

12. light source heat radiation structure according to claim 9 is characterized in that, installs in addition between the heat absorption surface of this conductive plate and the light source and is provided with conduction material.

13. light source heat radiation structure according to claim 9, its feature, this conductive plate increases sectional area from light source direction towards this heat radiation shell joint flaring, on average scatters heat to this heat radiation shell inwall with this.

14. light source heat radiation structure according to claim 9, it is characterized in that, this heat radiation shell other end opening port allows this conductive plate stretch out a protruding pinna outward, the opening port place of heat radiation shell is positioned with one in addition and is connected the light source base that transmits light source two electrodes, and be equipped with locating hole on the protruding pinna of this conductive plate, twine the location with this locating hole for earth electrode, and make this electrode be connected with reaching to replace when light source base makes up at the heat radiation shell.

15. light source heat radiation structure according to claim 9 is characterized in that, the cup type of the cast that this heat radiation shell moulding can be a closed, the corner post type of closed, closed, not cast, not the corner post type or the cup type of closed not of closed of closed.

Images