WO2016110053A1

WO2016110053A1 - Spring-shaped heat sink and radiator with spring-shaped heat sink

Info

Publication number: WO2016110053A1
Application number: PCT/CN2015/081590
Authority: WO
Inventors: 孙宗明; 张晶晶
Original assignee: 深圳市有为光电有限公司
Priority date: 2015-01-09
Filing date: 2015-06-16
Publication date: 2016-07-14
Also published as: CN104567510A; CN104567510B

Abstract

Disclosed are a spring-shaped heat sink (10) and a radiator (1) with the spring-shaped heat sink (10). The spring-shaped heat sink (10) is formed integrally by winding a spring. The upper end of a first extension section (131) is connected to the upper end of an upper-layer spring body (110) and extends to the bottom surface of a lower-layer spring body (120). One end of a first heat conducting section (141) is connected to the lower end of the first extension section (131), and coiled on the inner side of the bottom surface of the lower-layer spring body (120) or encircled on the outer side of the bottom surface. The upper end of a second extension section (132) is connected to the lower end of the upper-layer spring body (110) and extends to the bottom surface of the lower-layer spring body (120). One end of a second heat conducting section (142) is connected to the lower end of the second extension section (132), and coiled on the inner side of the bottom surface of the lower-layer spring body (120) or encircled on the outer side of the bottom surface. The upper end of a third extension section (133) is connected to the upper end of the lower-layer spring body (120) and extends to the bottom surface of the lower-layer spring body (120). One end of a third heat conducting section (143) is connected to the lower end of the third extension section (133), and coiled on the inner side of the bottom surface of the lower-layer spring body (120) or encircled on the outer side of the bottom surface. The spring-shaped heat sink (10) has higher heat conduction efficiency and heat dissipation efficiency, good ventilation performance and greatly reduced weight, and the shape and size thereof can be set based on requirements.

Description

Spring-like heat sink and heat sink with spring-like heat sink

Technical field

The present invention relates to a heat sink, particularly a spring-like heat sink and a heat sink with a spring-like heat sink.

Background technique

Many devices generate heat during operation. These heats need to be removed from the device by means of heat-dissipating components (mainly heat-dissipating blades) to ensure the stability of the device and extend the service life of the device. The first problem is to quickly transfer the heat of the heat source through the heat-conducting component to the heat-dissipating component that the radiator and the refrigerant (air or water) are in contact with. The second is to quickly exchange heat with the refrigerant through the heat-dissipating component, thereby affecting the heat-dissipating component and the heat of the refrigerant. There are two factors in the exchange effect, one is the size of the contact area with the refrigerant, and the other is the ease of circulation of the refrigerant around the radiator.

There are two main types of heat sinks. One is that the heat-conducting parts and the heat-dissipating parts are made of the same material, such as extruded aluminum profiles, die-cast aluminum, and cast iron heat sinks, which are suitable for non-concentrated heat sources (ie, heat sources). The area is relatively large), the advantage is that the heat-conducting component and the heat-dissipating component are integrated, and the heat conduction speed is fast, but the disadvantage is that the heat-dissipating component can only be made into a sheet shape due to the limitation of the process conditions, and cannot be made into other shapes, and can only be improved by increasing the heat dissipation area. The heat dissipation efficiency results in a multiplication of weight and a large amount of material, and the air circulation performance is also not satisfactory. The other is that the heat-conducting component and the heat-dissipating component are not integrally formed. Usually, the heat-conducting component uses a material with a faster heat conduction speed (such as a heat pipe), and the heat-dissipating component uses a lower-cost material (such as an aluminum foil). The heat pipe and fin heat sink are mainly used for concentrated heat sources (such as computer CPU) or heat source and heat dissipation in different spaces (such as air conditioning heat source outdoors, heat dissipation indoors), the heat dissipation structure has the following defects: 1. Heat to the blade The conduction is limited by the contact method and the difference of materials; 2. The heat dissipation direction is from one heat source to the far end, and the heat is easily collected near the heat source, and the uneven heat distribution affects the heat dissipation efficiency; 3. The heat dissipation blade only passes through the surface The air flow takes away heat and the structure is not conducive to heat exchange by air convection.

Summary of the invention

The technical problem to be solved by the present invention is to provide a spring-like heat sink and a heat sink with a spring-like heat sink, which has high heat conduction, heat dissipation performance and air circulation performance.

In order to solve the above technical problem, the present invention provides a spring-like heat radiating body integrally wound by a spring, including an axially stacked upper layer spring body and a lower layer. a spring body, a first extension section, a second extension section, a third extension section, a first heat conduction section, a second heat conduction section, a third heat conduction section, and a fourth heat conduction section; an upper end of the first extension section and an upper end phase of the upper layer spring body And extending to the bottom surface of the lower spring body, one end of the first heat conducting portion is in contact with the lower end of the first extended portion and is hovered on the inner side of the lower spring body or around the outer side thereof; the upper end of the second extended portion is opposite to the lower end of the upper spring body And extending to the bottom surface of the lower layer spring body, one end of the second heat conduction section is in contact with the lower end of the second extension section and is hovered on the inner side of the lower layer spring body or around the outer side thereof; the upper end of the third extension section is opposite to the upper end of the lower layer spring body And extending to the bottom surface of the lower layer spring body, one end of the third heat conduction section is in contact with the lower end of the third extension section and is hovered on the inner side of the lower layer spring body or around the outer side thereof; one end of the fourth heat conduction section is opposite to the lower end of the lower layer spring body And spirally surrounding or surrounding the outer surface of the lower layer spring body; the other end of the first heat conduction section or the second heat conduction section is in contact with the other end of the third heat conduction section or the fourth heat conduction section.

Preferably, the first extension section and the second extension section are outside the upper layer spring body and the lower layer spring body, and the third extension section is outside the lower layer spring body.

Preferably, the spring pitch of the upper spring body and the lower spring body is greater than the spring diameter.

Preferably, the first heat conduction section, the second heat conduction section, the third heat conduction section and the bottom surface of the fourth heat conduction section are planes.

Preferably, the shape is a cylindrical shape having the same diameter or a truncated cone shape that is large and small.

The present invention also provides a spring-like heat sink comprising a layer of spring-like heat sink, an extension extending from the upper end of the spring-like heat sink to the bottom surface, and a lower end of the extension section and/or a lower end of the spring-like heat sink and on the bottom surface thereof A thermally conductive section that is hovered on its inner side or around its outer side.

The present invention also provides a heat sink with a spring-like heat sink, comprising a hot carrier and at least one heat sink disposed thereon, preferably a plurality of heat sinks, the spring-shaped heat sink being integrally wound by a spring The heat dissipating body comprises an axially stacked upper layer spring body and a lower layer spring body, a first extension section, a second extension section, a third extension section, a first heat conduction section, a second heat conduction section, and a third heat conduction a fourth heat conduction section; the upper end of the first extension section is connected to the upper end of the upper layer spring body and extends to the bottom surface of the lower layer spring body, and one end of the first heat conduction section is in contact with the lower end of the first extension section and is hovered on the bottom surface of the lower layer spring body Inner side or surrounding the outer side; the upper end of the second extension section is in contact with the lower end of the upper layer spring body and extends to the bottom surface of the lower layer spring body, and one end of the second heat conduction section is in contact with the lower end of the second extension section and is hovered on the bottom surface of the lower layer spring body Inner side or surrounding the outer side; the upper end of the third extension section is in contact with the upper end of the lower layer spring body and extends to the bottom surface of the lower layer spring body, and one end of the third heat conduction section is in contact with the lower end of the third extension section and is on the bottom surface of the lower layer spring body Rotating on the inner side or surrounding the outer side thereof; one end of the fourth heat conduction section is in contact with the lower end of the lower layer spring body and spirals or surrounds the outer side of the lower layer spring body; the other end of the first heat conduction section or the second heat conduction section Connecting with the other end of the third heat conduction section or the fourth heat conduction section; the other end of the first heat conduction section or the second heat conduction section is in contact with the other end of the third heat conduction section or the fourth heat conduction section, the spring shape The heat sink passes through the first heat conduction section, the second heat conduction section, The third heat conduction section and the fourth heat conduction section are fixedly connected to the hot carrier.

Preferably, the first heat conducting section, the second heat conducting section, the third heat conducting section and the fourth heat conducting section are fixed to the hot carrier by welding, riveting and bolt pressing.

Preferably, the spring-shaped heat sink has a diameter that is sequentially reduced and sequentially concentrically nested or arranged in an array on the hot carrier.

Preferably, the first extension section and the second extension section are outside the upper layer spring body and the lower layer spring body, and the third extension section is outside the lower layer spring body; the spring spacing of the upper layer spring body and the lower layer spring body is greater than the spring The first heat conduction section, the second heat conduction section, the third heat conduction section and the bottom surface of the fourth heat conduction section are planes; and the shape is a cylindrical shape having the same diameter or a truncated cone shape which is large and small.

The spring-like heat sink and heat sink of the present invention have the following advantages:

1. The heat conduction efficiency is higher. The heat sink material may preferably further improve the heat conduction efficiency by using a material having higher heat conduction efficiency such as aluminum or copper; the spring-shaped heat sink has a heat conduction section spiraled or surrounded on the bottom surface of the lower layer spring body, and the heat conduction section fully utilizes the space of the bottom surface of the lower layer spring body to extend, The heat conduction length and area of the contact with the hot carrier plate are extended, and the space occupation is reduced, so that the heat of the hot carrier plate is transmitted to the upper spring body and the lower layer spring body more quickly, and the heat of the hot carrier plate is transferred in time.

2. The heat dissipation efficiency is higher. In order to dissipate heat more efficiently after the heat of the heat carrier plate is transferred to the spring-like heat sink, the present invention not only fixes the shape of the heat sink into a spring shape, but also increases the heat dissipation area per unit volume and also reduces the occupation of space; On the other hand, unlike the general spring, the spring-like heat dissipating body of the present invention comprises an upper layer spring body and a lower layer spring body of upper and lower layers, and the upper end and the lower end of the upper layer spring body are connected to the heat conducting section through the extension section, and the upper end of the lower layer spring body passes The extension section is connected to the heat conduction section, and the heat conduction sections of the two are connected to each other for fixing. The heat of the heat conduction section can be transmitted to the both ends of the upper spring body and the lower layer spring body through the extension section, and then transmitted from the both ends to the upper layer. The heat is dissipated between the spring body and the lower spring body. From the heat distribution, the temperature of the upper spring body and the lower spring body is higher, and the temperature in the middle is the lowest. Compared with the prior art, the heat is effectively prevented from approaching the hot carrier. A defect that accumulates and cannot be dissipated at the far end, and the heat can be contacted with the refrigerant (ie, air) at a shorter distance and dispersedly in various parts of the spring-like heat sink. Instead of a one-way transfer from proximal to distal, each segment to achieve a more uniform heat distribution effect, thereby enhancing the heat dissipation efficiency.

3. The air flow performance is ideal. Compared with the various types of heat sinks of the prior art, the spring-like heat sink facilitates air circulation from a plurality of angles while avoiding heat accumulation and speeding up heat exchange.

4. The shape and arrangement of the spring-shaped heat sink can be flexibly set as needed. The material, diameter, shape (ie, spiral diameter) and arrangement of the spring-shaped heat sink can be set as needed. For example, a material with good heat conductivity (aluminum, copper, etc.) can be used. The spring wire can be a solid wire or a hollow pipe or a spring. The heat dissipating body can be arranged in a dot matrix type, a concentric sleeve superposition type or a combination of the two on the hot carrier board, and can be flexibly set according to the heat dissipation requirement of the lamp, the cost requirement, and the site need to improve the heat conduction and heat dissipation efficiency.

DRAWINGS

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a front elevational view showing the spring-like heat radiating body of the first embodiment.

Fig. 2 is a left side view of the spring-like heat radiating body of the first embodiment.

Fig. 3 is a right side view of the spring-like heat radiating body of the first embodiment.

4 is a plan view of the spring-like heat sink of the first embodiment.

Fig. 5 is a bottom view of the spring-like heat radiating body of the first embodiment.

Fig. 6 is a perspective view of the spring-like heat sink of the first embodiment.

Fig. 7 is a perspective view of the spring-like heat sink of the first embodiment.

Fig. 8 is a front elevational view of the heat sink of the first embodiment.

Fig. 9 is a plan view of the heat sink of the first embodiment.

Fig. 10 is a perspective view of the heat sink of the first embodiment.

Fig. 11 is a plan view showing another heat sink of the first embodiment.

Fig. 12 is a perspective view showing another heat sink of the first embodiment.

Fig. 13 is a perspective view of the heat sink of the second embodiment.

Fig. 14 is a front elevational view showing the heat sink of the second embodiment.

Figure 15 is a cross-sectional view taken along line A-A of Figure 14.

Fig. 16 is a perspective view of the heat sink of the second embodiment.

Figure 17 is an exploded front view of the heat sink of Embodiment 2.

Fig. 18 is an exploded perspective view of the heat sink of the second embodiment.

Fig. 19 is a front elevational view showing the heat sink of the third embodiment.

Figure 20 is a cross-sectional view taken along line B-B of Figure 19.

Figure 21 is a plan view of the heat sink of the third embodiment.

Fig. 22 is a perspective view of the heat sink of the third embodiment.

Figure 23 is a front elevational view of the first lamp with a spring-like heat sink.

Figure 24 is a side elevational view of a first lamp with a spring-like heat sink.

Figure 25 is a cross-sectional view taken along line C-C of Figure 24;

Figure 26 is a perspective view of a first lamp with a spring-like heat sink.

Figure 27 is an exploded front view of the first lamp with a spring-like heat sink.

Figure 28 is a front exploded cross-sectional view of the first lamp with a spring-like heat sink.

Figure 29 is an exploded perspective view of a first lamp with a spring-like heat sink.

Figure 30 is a front elevational view of a second lamp with a spring-like heat sink.

Figure 31 is a side elevational view of a second lamp with a spring-like heat sink.

Figure 32 is a cross-sectional view taken along line D-D of Figure 31.

Figure 33 is a perspective view of a second lamp with a spring-like heat sink.

Figure 34 is an exploded front view of a second lamp with a spring-like heat sink.

Figure 35 is a front exploded cross-sectional view of a second lamp with a spring-like heat sink.

Figure 36 is an exploded perspective view of a second lamp with a spring-like heat sink.

Figure 37 is a front elevational view of a heat sink of a third type of lamp with a spring-like heat sink.

Figure 38 is a front elevational view of a third type of lamp with a spring-like heat sink.

Figure 39 is a side elevational view of a third lamp with a spring-like heat sink.

Figure 40 is a cross-sectional view taken along line E-E of Figure 39.

Figure 41 is a perspective view of a third type of lamp with a spring-like heat sink.

Figure 42 is an exploded front view of a third lamp with a spring-like heat sink.

Figure 43 is an exploded perspective view of a third lamp with a spring-like heat sink.

detailed description

The technical solution of the present invention will be further described below by way of embodiments and with reference to the accompanying drawings.

Example 1

8 to 10 are a front view, a plan view, and a perspective view of the heat sink 1 of the first embodiment, the heat sink 1 including a plurality of spring-like heat radiating bodies 10 and a hot carrier 20 .

1 to 7 are a front view, a left and right side view, a top view, a bottom view, and a perspective view of two different angles of the spring-like heat dissipating body 10 of the present embodiment. The spring-like heat dissipating body 10 is integrally wound by a spring. The spring-like heat dissipating body 10 includes an upper layer spring body 110, a lower layer spring body 120, a first extension section 131, a second extension section 132, a third extension section 133, a first heat conduction section 141, and a second heat conduction section. 142. The third heat conduction section 143 and the fourth heat conduction section 144. The upper layer spring body 110 and the lower layer spring body 120 are axially stacked. The upper end of the first extension section 131 is connected to the upper end of the upper layer spring body 110 and extends to the bottom surface of the lower layer spring body 120. The first heat conduction section 141 has one end and the first extension. The lower end of the segment 131 is connected and surrounds the outer surface of the lower layer spring body 120. The upper end of the second extension portion 132 is connected to the lower end of the upper layer spring body 110 and extends to the bottom surface of the lower layer spring body 120. The second heat conduction portion 142 has one end and the second end. The lower end of the extension portion 132 is connected to the bottom of the lower layer spring body 120 and spirals toward the center thereof. The upper end of the third extension portion 133 is connected to the upper end of the lower layer spring body 120 and extends to the bottom surface of the lower layer spring body 120, and the third heat conduction portion 143 is at one end. The fourth heat conducting portion 144 is in contact with the lower end of the lower layer spring body 120 and is disposed at the lower end of the lower layer spring body 120. The fourth heat conducting portion 144 is in contact with the lower end of the lower layer spring body 120 and spirals toward the center of the lower layer spring body 120 at the inner side thereof. In order to fix the upper spring body 110 and the lower spring body 120 to each other, the second heat conducting section 142 and the fourth heat conducting section 144 are spirally connected to the center of the bottom surface of the lower layer spring body 120 and connected to each other (as shown in FIG. 7). The third heat conducting portion 143 surrounds the outer side of the lower layer spring body 120, and the first heat conducting portion 141 surrounds the outer portion of the third heat conducting portion 143, so that the bottom of the lower layer spring body 120 has a diameter slightly larger than the upper layer spring body 110 and the lower layer spring. The body diameter of the body 120. The second heat conducting portion 142 and the fourth heat conducting portion 144 are fully circumscribed by the space inside the bottom surface of the lower layer spring body 120. The first heat conducting portion 141 and the third heat conducting portion 143 are surrounded by the bottom surface of the lower layer spring body 120, thereby extending the spring. Heat sink 10 The contact length and contact area with the hot carrier 20 allow the heat of the hot carrier 20 to be conducted more quickly, further improving the heat conduction effect. Moreover, the diameters of the first heat conduction section 141 and the third heat conduction section 143 are larger than the diameters of the upper and lower layer spring bodies, and are favorable for maintaining the spacing between the spring-like heat dissipation bodies 10 when mounted on a hot carrier or other heat source, preventing adjacent springs. The arrangement between the heat sinks is too close to reduce air flow performance while maximizing coverage on the hot carrier or heat source. Similarly, in order to ensure the air circulation performance of the spring-like heat dissipating body 10, the spring-like heat dissipating body 10 has a spring-to-spring pitch larger than the reed diameter, thereby ensuring sufficient clearance between the reed wires for air circulation, but the spring-to-spring spacing is not suitable. Too large, otherwise the length of the spring and the area of heat dissipation per unit volume will be reduced.

The upper spring body 110 and the lower spring body 120 are both cylindrical, and the first extension 131, the second extension 132, and the third extension 133 are parallel to the axis (or the bus bar) to ensure heat transfer from the bottom surface to the heat dissipation. The distance between the upper end of the body 110 is the shortest and the fastest, so as to improve the heat conduction effect. The first extension section 131 and the second extension section 132 are both outside the upper layer spring body 110 and the lower layer spring body 120, and the third extension section 133 is outside the lower layer spring body 120.

As shown in FIGS. 8 to 10, the spring-like heat radiating body 10 is fixed to the hot carrier 20 by welding, caulking, bolt pressing, or the like to form the heat sink 1. The hot carrier 20 is square, and the spring-like heat sinks 10 are arranged in an array on the hot carrier 20 at intervals. In order to increase the contact area between the spring-like heat dissipating body 10 and the thermal carrier 20, the bottom surfaces of the first heat-conducting section 141, the second heat-conducting section 142, the third heat-conducting section 143, and the fourth heat-conducting section 144 that are in contact with the hot-feeding board 20 are stamped or The polished surface is not curved.

The shape of the hot carrier 20 and the arrangement of the spring-like heat sink 10 are not limited to those shown in FIGS. 8 to 10, and may be arbitrarily arranged as needed. For example, FIG. 11 and FIG. 12 show that the spring-like heat sink 10 is In the arrangement of the circular hot carrier 20, the plurality of spring-like heat radiating bodies 10 are radially distributed at a plurality of angles centering on the center of the hot carrier 20.

Example 2

The shape of the spring-like heat sink is not limited to the cylindrical shape shown in FIG. 1 to FIG. 7. The present embodiment provides another spring-like heat sink 30 and a heat sink 3, as shown in FIG. 30 is a perspective view of a truncated cone shape having a shape of a small upper and a lower, and an axially hollow, comprising an upper spring body upper layer spring body 310, a lower layer spring body 320, a first extension section 331, a second extension section 332, and a third extension section 333. The first heat conduction section 341, the second heat conduction section 342, the third heat conduction section 343, and the fourth heat conduction section 344.

One end of the fourth heat conducting portion 344 is in contact with the lower end of the lower layer spring body 320 and surrounds the bottom surface of the lower layer spring body 320 along the original track. The upper end of the second extending portion 332 is in contact with the lower end of the upper layer spring body 310 and extends to the lower layer spring body. The bottom surface of the second heat conducting portion 342 is connected to the lower end of the second extending portion 332 and surrounds the outer surface of the lower layer spring body 320 on the outer side thereof, and the other end is connected to the fourth heat conducting portion 344; the upper end portion and the lower layer spring body of the third extending portion 333 The upper end of the 320 is connected to the bottom surface of the lower spring body 320, and one end of the third heat conducting portion 343 is connected to the lower end of the third extended portion 333 and is in the lower layer. The bottom surface of the spring body 320 surrounds the outer side thereof; the upper end of the first extension portion 331 is connected to the upper end of the upper layer spring body 310 and extends to the bottom surface of the lower layer spring body 320, and one end of the first heat conduction portion 341 is in contact with the lower end of the first extension portion 331 and The bottom surface of the lower layer spring body 320 surrounds the second heat conducting portion 342 and the outside of the third heat conducting portion 343.

As shown in FIGS. 17 and 18, an exploded front view and an exploded perspective view of the heat sink 3 of the present embodiment include a plurality of spring-like

heat radiating bodies

30, 30b, 30c, and 30d which are sequentially reduced in diameter and can be sequentially sleeved, and the heat radiating body 30 The structures of 30b, 30c, and 30d are as shown in FIG. 13 and described above, and are not described again. In order to ensure that the sleeves can be sequentially sleeved, the diameter of the bottom surface of the adjacent spring-like

heat radiating bodies

30, 30b, 30c, 30d should be smaller than the inner diameter of the bottom surface of the spring-like

heat radiating bodies

30, 30b, 30c, 30d of the adjacent outer layers. Preferably, the innermost spring-like heat sink 30d may be a cone. The spring-shaped

heat dissipating bodies

30, 30b, 30c, and 30d are sleeved and fixed to the hot carrier 20, and as shown in FIGS. 14 to 16, the fixing method is also performed by welding, riveting, bolt pressing, or the like.

Example 3

19 to 22 show the heat sink 4 of the present embodiment, including a hot carrier 20, two round-shaped spring-like

heat radiating bodies

30, 30b having different diameters, and a plurality of cylindrical spring-like heat radiating bodies 10, The structures of the spring-like

heat dissipating bodies

10, 30, and 30b are the same as those in Embodiment 1 and Embodiment 2, and will not be described again. The spring-shaped heat radiating body 30 having a large diameter is sleeved outside the spring-shaped heat radiating body 30b having a small diameter, and the spring-shaped heat radiating body 10 is provided in a hollow portion of the spring-shaped heat radiating body 30b having a small diameter, and the spring-like heat radiating body 10 30, 30b are all fixed on the hot carrier 20 .

The "lower layer spring body bottom surface" in each of the above embodiments refers to a plane perpendicular to the axis of the lower layer spring body where the lower end of the lower layer spring body is located.

It can be seen from the above embodiments that in order to achieve mutual fixation between the upper spring body and the lower spring body, the first heat conduction section or the second heat conduction section and the third heat conduction section or the fourth section may be different according to the shape of the upper layer spring body and the lower layer spring body. The heat conducting segments are connected, not limited to the embodiment. Similarly, the spiral or circumferential manner (inside, outside, length, etc.) of the first heat conducting section, the second heat conducting section, the third heat conducting section, and the fourth heat conducting section on the bottom surface of the lower layer spring body is not limited to the above embodiment.

The spring-like heat sink and heat sink of the present invention are suitable for heat dissipation of different types of heat sources. To further illustrate the application mode thereof, the specific structure for the lamp will be specifically described below, and the applicable field is not limited.

23 to 29 show the structure of the first lamp 50 with a spring-like heat sink, including a screw 501, a driving power source 502, an upper cover 503, a shield 504, a lower cover 505, a heat sink 1, and The screw 501 is fitted with an internally threaded post 506, an LED light panel 507, a silicone pad 508, a reflective bowl 509, a PC cover 510, and a lamp cover 511. Referring to FIG. 11 and FIG. 12, in the same manner as the first embodiment, the heat sink 1 is composed of a hot carrier 20 and a plurality of said cylindrical spring-like heat radiating bodies 10 fixed to the hot carrier 20, and the spring-like heat radiating body 10 is The center of the hot carrier 20 is radially distributed centrally. The LED light board 507, the silicone pad 508, the reflective bowl 509, the PC cover 510, and the lamp cover 511 are sequentially stacked and fixed on the heat sink 1. The bottom of the hot carrier 20 can be fixed by the existing LED lamp board. Four internal threaded posts 506 are disposed on the upper surface of the hot carrier 20, and the lower cover 505 is provided with holes corresponding to the position of the internally threaded post 506, the spring-like heat dissipating body 10, and the cross-sectional shape, and the holes of the lower cover 505 are aligned. The internally threaded post 506 and the spring-like heat dissipating body 10 are pressed from the top to the bottom on the first heat conducting portion 141 and the third heat conducting portion 143 at the bottom of the spring-like heat dissipating body 10 to perform aesthetic and heat conduction and heat dissipation. The top edge of the lower cover 505 is provided with a groove 512 (shown in FIG. 28) adapted to the bottom edge of the shield 504. The diameter and height of the shield 504 are slightly larger than the outer circumference of the spring-like heat radiator 10 and the internally threaded column 506. The shield 504 is fitted onto the groove 512 from above the heat sink 1 . The upper cover 503 is pressed against the top edge of the shield 504, the driving power source 502 is placed on the upper cover 503, and the screw 501 is connected to the internally threaded post 506 through the driving power source 502 and the upper cover 503, thereby driving the power source 502, The cover 503 and the shield 504 are fixed to the heat sink 1.

30 to 36 show the structure of a second lamp 60 having a spring-like heat sink, including a driving power source 602, a shield 604, a heat sink 3, an LED lamp panel 606, a lamp cover 607, and screws 601, 603, 608. . The structure of the heat sink 3 used in the lamp 60 is as shown in FIGS. 13 to 18 and as described above, and a plurality of circular-arc spring-shaped heat radiating bodies whose diameters are sequentially reduced are sequentially sleeved and fixed on the hot carrier plate, in order to further improve utilization. The hollow portion of the innermost spring-like heat radiating body is provided with a cylindrical spring-like heat radiating body 10 (as shown in FIG. 35). The shield 604 is also in the shape of a truncated cone and a grid, and its diameter and height are slightly larger than the spring-like heat sink of the heat sink 3. The shield 604 is sleeved around the spring-like heat sink of the heat sink 3 from the top to the bottom, and the bottom is passed through the screw. 603 is connected to the hot carrier 20 of the heat sink 3, the driving power source 602 is connected to the top edge of the shield 604 by screws 601, the LED light board 606 is fixed to the bottom surface of the hot carrier 20, and the lamp cover 607 is fixed to the bottom surface of the hot carrier 20 by screws 608. .

The shape of the heat sink and the arrangement of the spring-like heat sink can be arranged according to the shape of the lamp. In addition to the shape described above, FIG. 37 shows a perspective view of another heat sink 7, which is used in FIGS. 38-43. Various views of the lamp 70 of the heat sink 7 also includes a drive power source 702, a shield 704, a heat sink 7, an LED light panel 706, a light cover 707, and screws 701, 703, 708. The heat sink 7 includes a plurality of cylindrical spring-like heat sinks 10 and a hot carrier 20. The shape of the hot-board 20 is rounded and rectangular, and a plurality of rows of spring-like heat sinks 10 are alternately arranged thereon. 8 to 10, the spring-like heat sink of the heat sink 1 has a tighter interval. The shield 704 is slightly larger than the spring-like heat sink 10 and has a grid shape. The shield 704 is sleeved around the spring-like heat sink of the heat sink 7 from the top to the bottom, and the bottom is connected to the hot carrier of the heat sink 7 by screws 703. The driving power source 702 is connected to the top edge of the shield 704 by a screw 701. The LED light board 706 is fixed to the bottom surface of the hot carrier 20, and the lamp cover 707 is fixed to the bottom surface of the hot carrier 20 by screws 708.

The spring-like heat sink and the heat sink having the above structure have the following advantages:

1. The heat conduction efficiency is higher. The heat sink material may preferably further improve the heat conduction efficiency by using a material having higher heat conduction efficiency such as aluminum or copper; the spring-shaped heat sink has a heat conduction section spiraled or surrounded on the bottom surface of the lower layer spring body, and the heat conduction section fully utilizes the space of the bottom surface of the lower layer spring body to extend, Extended and hot load The contact temperature and area of the plate are contacted, and the space occupation is reduced, so that the heat of the hot carrier plate is transmitted to the upper spring body and the lower layer spring body more quickly, and the heat of the hot carrier plate is transferred in time.

2. The heat dissipation efficiency is higher. In order to dissipate heat more efficiently after the heat of the heat carrier plate is transferred to the spring-like heat sink, the present invention not only fixes the shape of the heat sink into a spring shape, but also increases the heat dissipation area per unit volume and also reduces the occupation of space; On the other hand, unlike the general spring, the spring-like heat dissipating body of the present invention comprises an upper layer spring body and a lower layer spring body of upper and lower layers, and the upper end and the lower end of the upper layer spring body are connected to the heat conducting section through the extension section, and the upper end of the lower layer spring body passes The extension section is connected to the heat conduction section, and the heat conduction sections of the two are connected to each other for fixing. The heat of the heat conduction section can be transmitted to the both ends of the upper spring body and the lower layer spring body through the extension section, and then transmitted from the both ends to the upper layer. The heat is dissipated between the spring body and the lower spring body. From the heat distribution, the temperature of the upper spring body and the lower spring body is higher, and the temperature in the middle is the lowest. Compared with the prior art, the heat is effectively prevented from approaching the hot carrier. A defect that accumulates and cannot be dissipated at the far end, and the heat can be contacted with the refrigerant (ie, air) at a shorter distance and dispersedly in various parts of the spring-like heat sink. Rather than unidirectionally heat transfer from the proximal end to the distal end, thereby improving the heat dissipation efficiency.

3. The air flow performance is ideal. Compared with the fin fins of the prior art, the spring-like heat sink facilitates air circulation from a plurality of angles while avoiding heat accumulation and speeding up heat exchange.

4. The shape and arrangement of the spring-shaped heat sink can be flexibly set as needed. The material, diameter, shape (ie, spiral diameter) and arrangement of the spring-shaped heat sink can be set as needed. For example, a material with good heat conductivity (aluminum, copper, etc.) can be used. The spring wire can be a solid wire or a hollow pipe or a spring. The shape of the heat dissipating body is not limited to the cylindrical shape and the truncated cone shape of the embodiment, and the spring-shaped heat dissipating body may be arranged in a matrix, a concentric sleeve, or a combination of the two on the hot carrier plate, and the above various factors may be According to the heat dissipation needs of the lamp, the cost needs, and the venue need to be flexibly set to improve the heat conduction and heat dissipation efficiency.

Of course, when only one layer of spring body is provided, it comprises a layer of spring body, an extension extending from the upper end of the spring body to the bottom surface, connected to the lower end of the extension section and/or the lower end of the spring body and hovering on the inside of the spring body or surrounding it The heat conduction section on the outer side achieves higher heat conduction efficiency, heat dissipation efficiency and good air circulation performance as compared with the prior art.

Claims

The spring-like heat dissipating body is characterized in that: the spring-like heat dissipating body is integrally wound by a spring, and comprises an axially stacked upper layer spring body and a lower layer spring body, a first extension section and a second extension section. a third extension section, a first heat conduction section, a second heat conduction section, a third heat conduction section, and a fourth heat conduction section;

The upper end of the first extension portion is connected to the upper end of the upper spring body and extends to the bottom surface of the lower layer spring body, and one end of the first heat conduction portion is in contact with the lower end of the first extension portion and is hovered on the inner side of the lower layer spring body or surrounds the outer side thereof;

The upper end of the second extension portion is connected to the lower end of the upper spring body and extends to the bottom surface of the lower spring body, and one end of the second heat conduction portion is in contact with the lower end of the second extension portion and is hovered on the inner side of the lower layer spring body or surrounds the outer side thereof;

The upper end of the third extension section is connected to the upper end of the lower layer spring body and extends to the bottom surface of the lower layer spring body, and one end of the third heat conduction section is in contact with the lower end of the third extension section and is hovered on the inner side of the lower layer spring body or around the outside thereof;

One end of the fourth heat conducting section is in contact with the lower end of the lower layer spring body and spirals or surrounds the outer side of the lower layer spring body;

The other end of the first heat conduction section or the second heat conduction section is in contact with the other end of the third heat conduction section or the fourth heat conduction section.
The spring-like heat dissipating body according to claim 1, wherein the first extension portion and the second extension portion are outside the upper layer spring body and the lower layer spring body, and the third extension portion is outside the lower layer spring body.
The spring-like heat dissipating body according to claim 1, wherein a pitch of the springs of the upper layer spring body and the lower layer spring body is larger than a reed diameter.
The spring-like heat dissipating body according to claim 1, wherein the first heat conducting section, the second heat conducting section, the third heat conducting section and the bottom surface of the fourth heat conducting section are planes.
The spring-like heat dissipating body according to claim 1, wherein the shape is a cylindrical shape having the same diameter or a truncated cone shape which is large in size and small in size.
A spring-like heat dissipating body, comprising: a layer of spring-like heat dissipating body, an extension extending from an upper end of the spring-like heat dissipating body to a bottom surface, being connected to a lower end of the extended section and/or a lower end of the spring-like heat dissipating body and spiraling at a bottom surface thereof a thermally conductive section on the inside or around the outside.
A heat sink with a spring-like heat dissipating body, comprising: a hot carrier plate and at least one heat dissipating body disposed thereon, preferably a plurality of heat dissipating bodies, wherein the spring-like heat dissipating body is integrally wound by a spring The heat dissipating body comprises an axially stacked upper layer spring body and a lower layer spring body, a first extension section, a second extension section, a third extension section, a first heat conduction section, a second heat conduction section, a third heat conduction section, and a fourth heat conduction section;

The upper end of the first extension portion is connected to the upper end of the upper spring body and extends to the bottom surface of the lower layer spring body, and one end of the first heat conduction portion is in contact with the lower end of the first extension portion and is hovered on the inner side of the lower layer spring body or surrounds the outer side thereof;

The upper end of the second extension portion is connected to the lower end of the upper spring body and extends to the bottom surface of the lower spring body, and one end of the second heat conduction portion is in contact with the lower end of the second extension portion and is hovered on the inner side of the lower layer spring body or surrounds the outer side thereof;

The upper end of the third extension section is connected to the upper end of the lower layer spring body and extends to the bottom surface of the lower layer spring body, and one end of the third heat conduction section is in contact with the lower end of the third extension section and is hovered on the inner side of the lower layer spring body or around the outside thereof;

One end of the fourth heat conducting section is in contact with the lower end of the lower layer spring body and spirals or surrounds the outer side of the lower layer spring body;

The other end of the first heat conduction section or the second heat conduction section is in contact with the other end of the third heat conduction section or the fourth heat conduction section;

The other end of the first heat conduction section or the second heat conduction section is in contact with the other end of the third heat conduction section or the fourth heat conduction section, and the spring-shaped heat dissipation body passes through the first heat conduction section, the second heat conduction section, and the third heat conduction. The segment and the fourth heat conducting segment are fixedly connected to the hot carrier.
The heat sink with spring-like heat sink according to claim 7, wherein the first heat conducting portion, the second heat conducting portion, the third heat conducting portion and the fourth heat conducting portion are fixed by welding, riveting and bolt pressing. On the hot carrier board.
The heat sink with a spring-like heat sink according to claim 8, wherein the spring-shaped heat sink has a diameter that is sequentially reduced and sequentially concentrically nested or arranged in an array on the hot carrier.
The spring-like heat dissipating body according to claim 1, wherein the first extension portion and the second extension portion are outside the upper layer spring body and the lower layer spring body, and the third extension portion is outside the lower layer spring body; The spring body and the lower spring body have a spring pitch greater than the spring diameter; the first heat conduction section, the second heat conduction section, the third heat conduction section, and the fourth heat conduction section bottom surface are planes; and the shape is a cylindrical shape or the same diameter Small and large round table.