CN201875500U - A heat pipe cooling LED lamp - Google Patents

Abstract

The utility model relates to a heat pipe heat dissipation formula LED lamp, it includes LED lamp piece and heat pipe heat dissipation unit, this LED lamp piece sets up on this heat pipe heat dissipation unit, this LED lamp piece includes lamp plate and a plurality of LED light source, a plurality of these LED light source electricity are connected on this lamp plate, this heat pipe heat dissipation unit includes cavity casing and radiating liquid, wherein, this cavity casing has surface and internal surface, and center on confirming an inner chamber with the help of this internal surface, this radiating liquid seals to irritate and establishes in this inner chamber of this cavity casing.

Description

A heat pipe cooling LED lamp

technical field

The utility model relates to a lamp, in particular to an LED lamp which uses a heat pipe to dissipate heat.

Background technique

LED light bulbs mainly use the principle of light-emitting diodes to emit light. Lamps using LEDs as light sources have many advantages such as low energy consumption, high luminous efficiency, and environmental protection. The heat generated must be very large. In order to improve the service life of the overall LED lamp, it is necessary to introduce relevant heat dissipation technology to improve the service life of the LED lamp. It has been proved that once the LED lamp is equipped with an excellent heat dissipation structure, the service life of the overall LED lamp will be reduced. It is bound to be greatly extended, and LED lamps with longer service life will be widely used and praised in reality.

As mentioned above, we can see that the heat dissipation technology of LED has affected the promotion and application prospect of LED lamps, but the heat dissipation effect of LED heat dissipation technology on the market is not very good due to the limitation of its structure and heat dissipation method. . As far as the current LED heat dissipation technology is concerned, heat conduction is generally used for heat dissipation. The structure of this type of LED lamp generally only includes LED lamps, heat dissipation bases and lamp housings. The structure of this type of LED lamps is generally composed of Fix the LED lamp on the heat dissipation base, and dissipate the heat generated by the LED light through the heat dissipation base. As far as the current heat dissipation bases are concerned, they all use the structure of a solid metal plate. Sometimes the heat dissipation base is usually made of metal aluminum. In order to improve the heat dissipation effect, some heat sinks are sometimes processed on the heat dissipation base. However, due to structural limitations, the heat dissipation effect of such LED lamps cannot be optimal. State, because this kind of LED lamps mainly use the thermal conductivity of metal to dissipate heat, LED lamps cannot be widely used and promoted if the heat dissipation performance is not well resolved, and this is the main shortcoming of traditional technology.

Contents of the invention

The utility model provides a heat pipe heat dissipation LED lamp, which uses the heat pipe principle to dissipate heat, and the LED lamp of the utility model is mainly used as a roof light of a house. Good effect and reasonable structure design, and this is the main purpose of the utility model.

The technical solution adopted by the utility model is: a heat pipe heat dissipation LED lamp, which includes an LED light sheet and a heat pipe heat dissipation unit, the LED light sheet is arranged on the heat pipe heat dissipation unit, and the LED light sheet includes a lamp board and several LED lights A light source, several LED light sources are electrically connected to the lamp board, and the heat pipe cooling unit includes a hollow shell and a cooling liquid, wherein the hollow shell has an outer surface and an inner surface, and a circle is defined by the inner surface Inner cavity, the cooling liquid is sealed and poured in the inner cavity of the hollow shell.

The hollow housing as mentioned above includes a top plate, a bottom plate and a ring wall, the ring wall is connected between the top plate and the bottom plate, and the inner cavity is formed around the top plate, the bottom plate and the ring wall, and the LED The light sheet is arranged on the bottom plate of the hollow shell, and the top plate of the hollow shell is located above the bottom plate.

The above-mentioned power module is fixedly arranged on the top plate of the hollow casing, the power module has a power connection line, and the power connection line is electrically connected between the power module and the LED light sheet, and the hollow casing A wire groove is arranged on the ring wall, and the power connection line is clamped in the wire groove.

As mentioned above, the power module includes a voltage stabilizing module and a flow stabilizing module, a plurality of cooling fins are arranged on the ring wall of the hollow casing, and a plurality of cooling fins are arranged between the bottom plate of the hollow casing and the LED lamp sheet. Silicone thermal layer.

As mentioned above, the LED light sheet is fixedly connected to the bottom plate of the hollow housing through a clamp, and the ring wall of the hollow housing, the power module, and the clamp are all cylindrical, so that the hollow When the housing, the power module and the card board are sequentially connected as a whole, the overall shape is cylindrical, and the power module and the card board are respectively connected to the upper and lower ends of the hollow housing by fixing screws.

The beneficial effects of the utility model are: as mentioned above, since the heat dissipation liquid of the utility model has two physical states of liquid and gas in the inner cavity, when the LED light sheet arranged on the heat pipe cooling unit is energized to emit light and generate When heat is generated, the heat is first transferred from the LED light sheet to the hollow shell of the heat pipe cooling unit, and then the heat dissipation liquid is transferred from the hollow shell. At this moment, the heat dissipation liquid is heated and vaporized, and the vaporized The heat dissipation liquid moves from bottom to top in the inner cavity. When the vaporized heat dissipation liquid moves upward and touches the hollow shell, the vaporized heat dissipation liquid is condensed and condensed into a liquid state by the action of gravity. Flowing downward along the inner surface of the hollow shell, and so on and on, during this process, the heat generated by the LED lamp sheet being energized and illuminated by the heat dissipation liquid is efficiently transferred outward to achieve the purpose of heat dissipation.

Description of drawings

Fig. 1 is the structural representation of utility model;

Fig. 2 is a sectional view of the heat pipe cooling unit of the present invention;

Fig. 3 is a schematic diagram of the position of the power module and the card board of the present invention;

Fig. 4 is a schematic diagram of the utility model when it is used as a house dome light.

Detailed ways

As shown in FIGS. 1 to 4 , a heat pipe cooling LED lamp includes an LED lamp sheet 10 and a heat pipe cooling unit 20 . The LED light sheet 10 is disposed on the heat pipe cooling unit 20 , and the heat pipe cooling unit 20 is used to dissipate the heat generated by the LED light sheet 10 when it is energized to emit light.

The LED lamp sheet 10 includes a lamp board 11 and several LED light sources 12 , and the several LED light sources 12 are electrically connected to the lamp board 11 .

The heat pipe cooling unit 20 includes a hollow shell 21 and a cooling liquid 22 . Wherein, the hollow shell 21 has an outer surface 211 and an inner surface 212, and an inner cavity 213 is defined around the inner surface 212, and the cooling liquid 22 is sealed and filled in the inner cavity 213 of the hollow shell 21. middle. The heat dissipation liquid 22 has two physical states of liquid and gas in the inner cavity 213. When the LED light sheet 10 installed on the heat pipe heat dissipation unit 20 is energized to emit light and generate heat, the heat is firstly released by the LED light sheet. 10 is transferred to the hollow casing 21 of the heat pipe cooling unit 20, and then the cooling liquid 22 is transferred from the hollow casing 21. The inner cavity 213 moves from bottom to top. When the vaporized heat dissipation liquid 22 moves upward and touches the hollow shell 21, the vaporized heat dissipation liquid 22 is condensed into a liquid state and moves along with the action of gravity. Flowing downward along the inner surface 212 of the hollow shell 21, and so on and on, during this process, the heat generated by electrifying and emitting the LED light sheet 10 through the cooling liquid 22 is efficiently transferred outward to achieve the effect of heat dissipation. Purpose.

The hollow housing 21 includes a top plate 214, a bottom plate 215, and a ring wall 216. The ring wall 216 is connected between the top plate 214 and the bottom plate 215, and is surrounded by the top plate 214, the bottom plate 215, and the ring wall 216. The lumen 213 .

The LED light sheet 10 is arranged on the bottom plate 215 of the hollow shell 21, the top plate 214 of the hollow shell 21 is located above the bottom plate 215, and the hollow shell 21 is vertically arranged so that the cooling liquid 22 The effect of its own gravity remains near the bottom plate 215 of the hollow shell 21 . Therefore, when the LED light sheet 10 arranged on the bottom plate 215 of the hollow shell 21 is energized to emit light and generate heat, the heat is first transferred from the LED light chip 10 to the bottom plate 215 of the hollow shell 21 Then, it is transferred to the heat dissipation liquid 22 above the bottom plate 215. At this moment, the heat dissipation liquid 22 is heated and vaporized, and the vaporized heat dissipation liquid 22 moves from bottom to top in the inner cavity 213. When the vaporized When the heat dissipation liquid 22 moves upward and contacts the top plate 214 and the ring wall 216 of the hollow shell 21, the vaporized heat dissipation liquid 22 is condensed into a liquid state and flows downward by the action of gravity, and re-collects. Above the bottom plate 215, it goes back and forth in this way, and the heat generated by the LED light sheet 10 is radiated outward through the heat dissipation liquid 22 during the process, and at the same time, the hollow shell 21 is in the above process. The top plate 214 is always positioned above the bottom plate 215 to ensure the smooth progress of the above-mentioned circulation process.

The power module 30 is fixedly arranged on the top plate 214 of the hollow housing 21, the power module 30 has a power connection line, and the power connection line is electrically connected between the power module 30 and the LED light sheet 10, the hollow The ring wall 216 of the casing 21 is provided with a wire slot, and the power connection line is clamped in the wire slot. Through the structural design of the wire groove, the power connection wire of the power module 30 can be fixed while the power connection wire is not exposed, and the overall appearance of the LED lamp of the present invention can be improved.

The power module 30 includes a voltage stabilizing module and a steady flow module. A plurality of cooling fins may be provided on the ring wall 216 of the hollow shell 21 to improve the cooling effect. A heat conduction layer of silica gel can be disposed between the bottom plate 215 of the hollow shell 21 and the LED light sheet 10 to improve the heat conduction effect. The LED light sheet 10 is fixedly connected to the bottom plate 215 of the hollow casing 21 through the clamping plate 40 .

The ring wall 216 of the hollow housing 21, the power module 30 and the clamping plate 40 are all cylindrical, so that when the hollow housing 21, the power module 30 and the clamping plate 40 are sequentially connected into a whole Cylindrical shape enhances aesthetics. The power module 30 and the card board 40 are respectively connected to the upper and lower ends of the hollow casing 21 by fixing screws.

As shown in Figure 4, the heat pipe cooling LED lamp is used as a roof light when in use, so that the top plate 214 of the hollow shell 21 is located above the bottom plate 215, and the hollow shell 21 is vertically arranged so that the The cooling fluid 22 is kept near the bottom plate 215 of the hollow shell 21 by its own gravity.

Claims (5)

1. A heat pipe cooling type LED lamp, which comprises an LED lamp sheet and a heat pipe cooling unit, characterized in that: the LED lamp sheet is arranged on the heat pipe cooling unit, the LED lamp sheet includes a lamp board and several LED light sources, several of the The LED light source is electrically connected to the lamp board, and the heat pipe cooling unit includes a hollow shell and cooling liquid, wherein the hollow shell has an outer surface and an inner surface, and an inner cavity is defined around the inner surface, the The cooling liquid is sealed and filled in the inner chamber of the hollow shell. 2. A heat pipe cooling LED lamp according to claim 1, characterized in that: the hollow shell comprises a top plate, a bottom plate and a ring wall, and the ring wall is connected between the top plate and the bottom plate, and by means of The top plate, the bottom plate and the ring wall surround and form the inner cavity, the LED light sheet is arranged on the bottom plate of the hollow shell, and the top plate of the hollow shell is located above the bottom plate. 3. A heat pipe cooling LED lamp as claimed in claim 2, characterized in that: the power module is fixedly arranged on the top plate of the hollow casing, the power module has a power connection line, and the power connection line is electrically connected to Between the power module and the LED light sheet, a wire groove is arranged on the ring wall of the hollow housing, and the power connection line is clamped in the wire groove. 4. A heat pipe cooling LED lamp as claimed in claim 3, characterized in that: the power module includes a voltage stabilizing module and a flow stabilizing module, and a plurality of cooling fins are arranged on the ring wall of the hollow shell A heat-conducting layer of silica gel is arranged between the bottom plate of the hollow shell and the LED light sheet. 5. A heat pipe cooling LED lamp according to claim 3, characterized in that: the LED lamp sheet is fixedly connected to the bottom plate of the hollow shell through a clip, and the ring wall of the hollow shell , the power module and the card board are cylindrical, so that when the hollow shell, the power module and the card board are sequentially connected into a whole, the overall shape is cylindrical, and the power module and the card board are respectively connected by fixing screws at the upper and lower ends of the hollow shell.

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