A kind of LED lamp heat dissipation device and assembly method thereof

Abstract

A heat dissipation device for a matching assembled LED lamp and an assembly method thereof, relating to a heat dissipation device and an assembly method thereof. An outer cylinder and an inner cylinder are bonded and fixed by an upper sealing ring and a lower sealing plate, mercury is injected between the outer cylinder and the inner cylinder, a plurality of vertical notches are provided on the wall of the outer cylinder, a plurality of high thermal conductivity rectangular metal sheets are sealed and bonded in the middle of the corresponding vertical notches, the inner end of each high thermal conductivity rectangular metal sheet extends between the outer cylinder and the inner cylinder, the heat dissipation fins are all annular in shape, and are inserted and inserted in the outer ends of the plurality of high thermal conductivity rectangular metal sheets, the lamp holder is bonded and fixed inside the inner cylinder, a plurality of vertical notches are provided on the wall of the inner cylinder, a plurality of high thermal conductivity rectangular metal sheets are sealed and bonded in the middle of the corresponding vertical notches, the outer end of each high thermal conductivity rectangular metal sheet extends between the outer cylinder and the inner cylinder, and the inner end is tightly attached to the lamp holder. Heat conduction transition is performed through mercury, and heat dissipation is stable and efficient.

Description

Technical Field

[0001] The invention relates to a heat dissipation device and an assembling method thereof, in particular to a matching assembled LED lamp heat dissipation device and an assembling method thereof. Background Art

[0002] In the field of lighting, LED lamps have basically replaced traditional tungsten filament lamps because of their advantages over traditional tungsten filament lamps, such as energy saving and environmental protection and relatively long service life.

[0003] As we all know, LED lamps will generate a lot of heat when in use, especially high-power LED lamps. If the generated heat cannot be discharged in time, it will affect the lighting effect of the LED lamp and even shorten its service life. Therefore, the role of the LED lamp heat dissipation device is particularly important.

[0004] At present, there are two common types of LED lamp heat sinks. One is a one-piece heat sink formed by direct die casting. Due to the production process, the heat sink fins of this heat sink are thicker and the heat dissipation capacity is weaker. The other is a heat sink formed by splicing and assembling thin-walled metal parts formed by extrusion. The heat sink fins of this heat sink are thinner and the heat dissipation capacity is stronger. However, since the thin-walled metal parts are easy to deform, poor contact is likely to occur during assembly, resulting in failure of heat conduction in some positions.

[0005] Therefore, there is an urgent need for an LED lamp heat dissipation device that is simple and reasonable to manufacture and has stable and effective heat conduction. Summary of the invention

[0006] In order to solve the deficiencies of the background technology, the present invention provides a heat dissipation device for an assembled LED lamp and an assembly method thereof.

[0007] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a heat dissipation device for a matching assembled LED lamp, comprising a main body mounting shell, a lamp holder, a plurality of high thermal conductivity rectangular metal sheets 1, a plurality of high thermal conductivity rectangular metal sheets 2 and a plurality of heat dissipation fins, the main body mounting shell comprising an outer cylinder and an inner cylinder coaxially spaced and sleeved, the upper and lower ends of the outer cylinder and the inner cylinder being respectively bonded and fixed by an upper sealing ring and a lower sealing plate, mercury is injected between the outer cylinder and the inner cylinder, and the liquid level of the mercury is lower than the upper end surfaces of the outer cylinder and the inner cylinder, a plurality of vertical notches 1 are evenly arranged in the middle of the outer cylinder wall along the circumferential direction, the plurality of high thermal conductivity rectangular metal sheets 1 are respectively sealed in the radial direction of the outer cylinder The plurality of heat dissipation fins are all annular in shape, and the plurality of heat dissipation fins are evenly spaced along the axial direction of the outer cylinder and inserted into the outer ends of the plurality of high thermal conductivity rectangular metal sheets. The lamp holder is bonded and fixed inside the inner cylinder, and a plurality of vertical notches 2 are evenly arranged along the circumferential direction in the middle of the inner cylinder wall. The plurality of high thermal conductivity rectangular metal sheets 2 are respectively sealed and bonded and fixed in the corresponding vertical notches 2 along the radial direction of the inner cylinder. The outer end of each high thermal conductivity rectangular metal sheet 2 extends between the outer cylinder and the inner cylinder, and the inner end of each high thermal conductivity rectangular metal sheet 2 is tightly attached to the lamp holder.

[0008] An assembly method of an assembled LED lamp heat dissipation device according to the present invention comprises the following steps:

[0009] Step 1: first, a plurality of heat sink fins are sequentially mounted on the outer wall of the outer cylinder, and then a plurality of high thermal conductivity rectangular metal sheets are sequentially inserted from the inside of the outer cylinder into the corresponding vertical notch, and the plurality of heat sink fins and the plurality of high thermal conductivity rectangular metal sheets are adjusted so that the plug-in interface 1 at the outer end of the high thermal conductivity rectangular metal sheet 1 is firmly plugged into the plug-in interface 2 corresponding to the heat sink fin, thereby positioning the plurality of heat sink fins using the plurality of high thermal conductivity rectangular metal sheets, and then the middle of each high thermal conductivity rectangular metal sheet 1 is sealed and bonded to the corresponding vertical notch 1 from the inside of the outer cylinder by using a sealant, and then the inner side of each heat sink fin is bonded and fixed to the corresponding position of the outer wall of the outer cylinder by using a thermal conductive adhesive;

[0010] Step 2: The lamp holder is fixed inside the inner cylinder by bonding with thermal conductive glue, and it is noted that the positions of the multiple vertical notches 2 of the inner cylinder are avoided. Then, multiple high thermal conductivity rectangular metal sheets 2 are inserted into the corresponding vertical notches 2 from the outside of the inner cylinder in sequence, and the inner end of each high thermal conductivity rectangular metal sheet 2 is tightly attached to the lamp holder. Then, the middle of each high thermal conductivity rectangular metal sheet 2 is sealed and bonded with the corresponding vertical notch 2 by using sealant;

[0011] Step 3: Insert the inner cylinder into the outer cylinder and keep the coaxial position, glue and fix the lower sealing plate to the lower ends of the outer cylinder and the inner cylinder by adhesive, completely seal the lower ends of the outer cylinder and the inner cylinder, then inject mercury between the outer cylinder and the inner cylinder, and finally glue and fix the upper sealing ring to the upper ends of the outer cylinder and the inner cylinder by adhesive, and seal the annular spacing area between the upper ends of the outer cylinder and the inner cylinder.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the main body mounting shell, the high thermal conductivity rectangular metal sheet 1, the high thermal conductivity rectangular metal sheet 2 and the heat dissipation fins of the present invention are simple in appearance and easy to manufacture, and have a reasonable structure and are easy to install. Mercury is filled in the main body mounting shell, and the mercury is liquid and has a strong heat conduction capacity. The high thermal conductivity rectangular metal sheet 2 matched with the lamp holder and the high thermal conductivity rectangular metal sheet 1 matched with the heat dissipation fins are heat-conducted by mercury, which effectively avoids the poor contact between the lamp holder and the heat dissipation fins, which is the most critical part in the heat dissipation process, resulting in heat conduction failure, and the heat dissipation is more stable and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an axonometric diagram of the overall structure of the assembled LED lamp heat dissipation device of the present invention;

[0014] Figure 2 It is an axonometric diagram of the split structure of the main body installation shell of the present invention;

[0015] Figure 3 It is an axonometric diagram of the assembly structure of the main body mounting shell, the high thermal conductivity rectangular metal sheet and the heat dissipation fins of the present invention. For the convenience of viewing, the upper sealing ring of the main body mounting shell is not shown;

[0016] Figure 4 It is an axonometric diagram of the split structure of the high thermal conductivity rectangular metal sheet and the heat sink fin of the present invention;

[0017] Figure 5 It is an axonometric view of the assembly structure of the main body mounting shell, the lamp holder and the high thermal conductivity rectangular metal sheet 2 of the present invention. For the convenience of viewing, the upper sealing ring of the main body mounting shell is not shown. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] Specific implementation method 1: Figure 1~Figure 5As shown, the present invention discloses a heat dissipation device for a fitting assembled LED lamp, comprising a main body mounting shell, a lamp holder 5, a plurality of high thermal conductivity rectangular metal sheets 16, a plurality of high thermal conductivity rectangular metal sheets 27 and a plurality of heat dissipation fins 8, wherein the main body mounting shell comprises an outer cylinder 1 and an inner cylinder 2 which are coaxially spaced and sleeved, wherein the upper and lower ends of the outer cylinder 1 and the inner cylinder 2 are respectively bonded and fixed by an upper sealing ring 3 and a lower sealing plate 4, wherein mercury is injected between the outer cylinder 1 and the inner cylinder 2, and the liquid level of the mercury is lower than the upper end surfaces of the outer cylinder 1 and the inner cylinder 2, wherein a plurality of vertical notches 1-1 are uniformly arranged in the middle of the wall of the outer cylinder 1 along the circumferential direction, wherein the plurality of high thermal conductivity rectangular metal sheets 6 are respectively bonded and fixed in the corresponding radial directions of the outer cylinder 1. In the vertical notch 1-1, the inner end of each high thermal conductivity rectangular metal sheet 6 extends between the outer cylinder 1 and the inner cylinder 2, the multiple heat dissipation fins 8 are all annular in shape, and the multiple heat dissipation fins 8 are evenly spaced along the axial direction of the outer cylinder 1 and inserted into the outer ends of the multiple high thermal conductivity rectangular metal sheets 6, the lamp holder 5 is bonded and fixed inside the inner cylinder 2, and a plurality of vertical notches 2-1 are evenly arranged in the middle of the inner cylinder 2 along the circumferential direction. The middle of the multiple high thermal conductivity rectangular metal sheets 27 are respectively sealed and bonded and fixed in the corresponding vertical notches 2-1 along the radial direction of the inner cylinder 2, and the outer end of each high thermal conductivity rectangular metal sheet 27 extends between the outer cylinder 1 and the inner cylinder 2, and the inner end of each high thermal conductivity rectangular metal sheet 27 is tightly attached to the lamp holder 5.

[0020] Specific implementation method 2: Figure 3 , 4 As shown, this embodiment is a further explanation of the specific embodiment one, each of the high thermal conductivity rectangular metal sheets 6 is provided with a plurality of plug interfaces 6-1 at vertical intervals on the outer end, and each of the heat dissipation fins 8 is evenly provided with a plurality of plug interfaces 8-1 along the circumferential direction on the inner side, and the plurality of plug interfaces 8-1 of each heat dissipation fin 8 are plugged one by one with the plurality of plug interfaces 6-1 of the plurality of high thermal conductivity rectangular metal sheets 6 located in the same plane.

[0021] Specific implementation method three: Figure 3 , 5 As shown, this embodiment is a further description of the specific embodiment 1 or the specific embodiment 2, and the lamp holder 5 and the inner cylinder 2 and each of the heat dissipation fins 8 and the outer cylinder 1 are bonded and fixed by thermal conductive adhesive.

[0022] Specific implementation method four: Figure 3 , 4As shown in , 5, this embodiment is a further explanation of the specific embodiment three, the multiple high thermal conductivity rectangular metal sheets 1 6, the multiple high thermal conductivity rectangular metal sheets 2 7 and the multiple heat sink fins 8 are all made of aluminum or aluminum-copper alloy material, wherein the high thermal conductivity rectangular metal sheets 1 6 and the high thermal conductivity rectangular metal sheets 2 7 are both 2~4mm thick, and the heat sink fins 8 are both 0.5~1mm thick.

[0023] Specific implementation method five: Figure 1~Figure 5 As shown, this embodiment discloses an assembly method of a heat dissipation device for assembled LED lamps according to a fourth embodiment, and the assembly method comprises the following steps:

[0024] Step 1: first, a plurality of heat sink fins 8 are sequentially mounted on the outer wall of the outer cylinder 1, and then a plurality of high thermal conductivity rectangular metal sheets 6 are sequentially inserted from the inside of the outer cylinder 1 into the corresponding vertical notch 1-1, and the plurality of heat sink fins 8 and the plurality of high thermal conductivity rectangular metal sheets 6 are adjusted so that the plug-in interface 16-1 at the outer end of the high thermal conductivity rectangular metal sheet 6 is firmly plugged into the plug-in interface 2 8-1 corresponding to the heat sink fin 8, thereby positioning the plurality of heat sink fins 8 using the plurality of high thermal conductivity rectangular metal sheets 6, and then the middle of each high thermal conductivity rectangular metal sheet 6 is sealed and bonded to the corresponding vertical notch 1-1 from the inside of the outer cylinder 1 by means of sealant, and then the inner side of each heat sink fin 8 is bonded and fixed to the corresponding position of the outer wall of the outer cylinder 1 by means of thermal conductive glue;

[0025] Step 2: The lamp holder 5 is fixed inside the inner cylinder 2 by bonding with thermal conductive glue, and it is noted that the positions of the multiple vertical notches 2-1 of the inner cylinder 2 are avoided. Then, multiple high thermal conductivity rectangular metal sheets 27 are sequentially inserted from the outside of the inner cylinder 2 into the corresponding vertical notches 2-1, and the inner end of each high thermal conductivity rectangular metal sheet 27 is tightly attached to the lamp holder 5. Then, the middle of each high thermal conductivity rectangular metal sheet 27 is sealed and bonded with the corresponding vertical notch 2-1 by using sealant;

[0026] Step 3: Insert the inner cylinder 2 into the outer cylinder 1 and keep the coaxial position, glue and fix the lower sealing plate 4 to the lower ends of the outer cylinder 1 and the inner cylinder 2 by adhesive, and completely seal the lower ends of the outer cylinder 1 and the inner cylinder 2, then inject mercury between the outer cylinder 1 and the inner cylinder 2, and finally glue and fix the upper sealing ring 3 to the upper ends of the outer cylinder 1 and the inner cylinder 2 by adhesive, and seal the annular spacing area between the upper ends of the outer cylinder 1 and the inner cylinder 2.

[0027] Specific implementation method six: Figure 2 As shown, this embodiment is a further description of the specific embodiment 5, and the liquid level of the mercury is 1-2 cm lower than the upper end surfaces of the outer cylinder 1 and the inner cylinder 2.

[0028] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other forms of assembly without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A heat dissipation device for an assembled LED lamp, characterized in that: The invention comprises a main body mounting shell, a lamp holder (5), a plurality of high thermal conductivity rectangular metal sheets (I) (6), a plurality of high thermal conductivity rectangular metal sheets (II) (7) and a plurality of heat dissipation fins (8), wherein the main body mounting shell comprises an outer cylinder (1) and an inner cylinder (2) which are coaxially spaced and sleeved, the upper and lower ends of the outer cylinder (1) and the inner cylinder (2) being bonded and fixed by an upper sealing ring (3) and a lower sealing plate (4) respectively, mercury is injected between the outer cylinder (1) and the inner cylinder (2), and the liquid level of the mercury is 1 to 2 cm lower than the upper end surfaces of the outer cylinder (1) and the inner cylinder (2), a plurality of vertical notches (I-1) are evenly arranged in the middle of the wall of the outer cylinder (1) along the circumferential direction, and the middle of the plurality of high thermal conductivity rectangular metal sheets (I) (6) are respectively sealed and bonded and fixed in the corresponding vertical notches (I-1) along the radial direction of the outer cylinder (1), The inner end of each high thermal conductivity rectangular metal sheet (6) extends between the outer cylinder (1) and the inner cylinder (2); the multiple heat dissipation fins (8) are all annular in shape; the multiple heat dissipation fins (8) are inserted and mounted on the outer ends of the multiple high thermal conductivity rectangular metal sheets (6) at equal intervals along the axial direction of the outer cylinder (1); the lamp holder (5) is bonded and fixed inside the inner cylinder (2); a plurality of vertical notches (2-1) are evenly arranged in the middle of the inner cylinder (2) along the circumferential direction; the middle of the multiple high thermal conductivity rectangular metal sheets (7) are respectively sealed and bonded and fixed in the corresponding vertical notches (2-1) along the radial direction of the inner cylinder (2); the outer end of each high thermal conductivity rectangular metal sheet (7) extends between the outer cylinder (1) and the inner cylinder (2); and the inner end of each high thermal conductivity rectangular metal sheet (7) is tightly attached to the lamp holder (5).

2. The heat dissipation device for a LED lamp according to claim 1, characterized in that: Each of the high thermal conductivity rectangular metal sheets (6) has a plurality of plug-in interfaces (6-1) arranged vertically at intervals on the outer end thereof, and each of the heat dissipation fins (8) has a plurality of plug-in interfaces (8-1) arranged evenly along the circumferential direction on the inner side thereof, and the plurality of plug-in interfaces (8-1) of each heat dissipation fin (8) are plug-connected one by one with the plurality of plug-in interfaces (6-1) of the plurality of high thermal conductivity rectangular metal sheets (6) located on the same plane.

3. A heat dissipation device for a LED lamp according to claim 1 or 2, characterized in that: The lamp holder (5) and the inner cylinder (2) as well as each of the heat dissipation fins (8) and the outer cylinder (1) are bonded and fixed using heat-conducting adhesive.

4. The heat dissipation device for a LED lamp according to claim 3, characterized in that: The plurality of high thermal conductivity rectangular metal sheets one (6), the plurality of high thermal conductivity rectangular metal sheets two (7) and the plurality of heat sink fins (8) are all made of aluminum or aluminum-copper alloy material, wherein the thickness of the high thermal conductivity rectangular metal sheets one (6) and the high thermal conductivity rectangular metal sheets two (7) is 2-4 mm, and the thickness of the heat sink fins (8) is 0.5-1 mm.

5. The method for assembling a heat dissipation device for an assembled LED lamp according to claim 4, characterized in that: The assembly method comprises the following steps: Step 1: first, a plurality of heat sink fins (8) are sequentially mounted on the outer wall of the outer cylinder (1), and then a plurality of high thermal conductivity rectangular metal sheets (6) are sequentially inserted from the inside of the outer cylinder (1) into the corresponding vertical notches (1-1), and the plurality of heat sink fins (8) and the plurality of high thermal conductivity rectangular metal sheets (6) are adjusted so that the plug-in interface (6-1) at the outer end of the high thermal conductivity rectangular metal sheet (6) is securely plugged into the plug-in interface (8-1) corresponding to the heat sink fin (8), thereby positioning the plurality of heat sink fins (8) using the plurality of high thermal conductivity rectangular metal sheets (6), and then the middle of each high thermal conductivity rectangular metal sheet (6) is sealed and bonded to the corresponding vertical notch (1-1) from the inside of the outer cylinder (1) by means of sealant, and then the inner side of each heat sink fin (8) is bonded and fixed to the corresponding position of the outer wall of the outer cylinder (1) by means of thermal conductive glue; Step 2: The lamp holder (5) is fixed inside the inner cylinder (2) by bonding with heat-conducting adhesive, and the positions of the plurality of vertical notches (2-1) of the inner cylinder (2) are avoided. Then, a plurality of highly thermally conductive rectangular metal sheets (7) are sequentially inserted from the outside of the inner cylinder (2) into the corresponding vertical notches (2-1), with the inner end of each highly thermally conductive rectangular metal sheet (7) closely attached to the lamp holder (5). Then, the middle of each highly thermally conductive rectangular metal sheet (7) is sealed and bonded to the corresponding vertical notch (2-1) by using sealant; Step 3: Insert the inner cylinder (2) into the outer cylinder (1) and keep the coaxial position, and glue the lower sealing plate (4) to the lower ends of the outer cylinder (1) and the inner cylinder (2) by adhesive, and completely seal the lower ends of the outer cylinder (1) and the inner cylinder (2), then inject mercury between the outer cylinder (1) and the inner cylinder (2), and finally glue the upper sealing ring (3) to the upper ends of the outer cylinder (1) and the inner cylinder (2) by adhesive, and seal the annular spacing area between the upper ends of the outer cylinder (1) and the inner cylinder (2).

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