CN-121720077-B - Lighting equipment with self-adaptive adjustment of heat dissipation and sealing state and adjustment method

CN121720077BCN 121720077 BCN121720077 BCN 121720077BCN-121720077-B

Abstract

The invention discloses illumination equipment with self-adaptive adjustment of heat dissipation and sealing states and an adjustment method, wherein the equipment comprises a substrate, a metal corrugated pipe, a light-emitting unit, a fixed cover body and a movable cover body, wherein a cooling cavity for cooling liquid to circulate is formed in the substrate, the light-emitting unit is arranged on the upper surface of the substrate, the fixed cover body is fixed on the upper surface of the substrate and surrounds the periphery of the light-emitting unit, the fixed cover body is provided with a top opening, the movable cover body is elastically arranged relative to the fixed cover body and can open or close the top opening, the metal corrugated pipe is arranged close to the light-emitting unit, and the metal corrugated pipe is filled with a phase-change working medium so as to absorb heat and stretch. The invention can adaptively switch between two states of complete sealing and opening heat dissipation, thereby improving the flexibility and applicability of use.

Inventors

LIN CHENCHUN
CHENG ZHEN
HUANG ZHICHENG

Assignees

深圳市极成光电有限公司

Dates

Publication Date: 20260508
Application Date: 20260224

Claims (7)

1. A lighting device with self-adaptive adjustment of heat dissipation and sealing states is characterized by comprising a base plate, a metal corrugated pipe, a light-emitting unit, a fixed cover body and a movable cover body, wherein a cooling cavity for cooling liquid to circulate is formed in the base plate, the light-emitting unit is arranged on the upper surface of the base plate, the fixed cover body is fixed on the upper surface of the base plate and surrounds the periphery of the light-emitting unit, the fixed cover body is provided with a top opening, the movable cover body is elastically arranged relative to the fixed cover body and can open or close the top opening, the metal corrugated pipe is arranged close to the light-emitting unit, the metal corrugated pipe is filled with a phase change working medium so as to absorb heat to stretch, when the metal corrugated pipe is not stretched, the movable cover body closes the top opening under the action of elasticity, when the metal corrugated pipe is stretched due to temperature rise, the movable cover body is driven to open the top opening, the transmission assembly comprises a shaft lever, a transmission lever and a connecting post, the connecting post is arranged perpendicular to the metal corrugated pipe and the fixed cover body, the transmission lever is hinged to one end of the transmission lever is hinged to the shaft lever, when the metal corrugated pipe is pivoted, the transmission lever is pivoted to one end of the transmission lever is hinged to one end of the transmission lever, and the other end of the transmission lever is hinged to the other end of the transmission lever, and the transmission lever is hinged to one end of the transmission lever is hinged to the other end, the base plate is provided with a mounting groove, the metal corrugated pipe is arranged in the mounting groove, the metal corrugated pipe comprises a free end and a fixed end, the fixed end is fixedly arranged in the mounting groove, the free end is provided with a pushing part extending along the length direction of the metal corrugated pipe, the position of the cam corresponding to the pushing part is provided with a pushing limiting groove, the pushing part can be embedded into the pushing limiting groove and pushes the transmission rod, the base plate comprises an upper plate part and a lower plate part, the upper plate part and the lower plate part are enclosed to form the cooling cavity, the cooling cavity comprises a flow distribution cavity, a flow collecting cavity and a plurality of parallel flow channels which are arranged in parallel and side by side, two ends of the parallel flow channels are respectively communicated with the flow distribution cavity and the flow collecting cavity, two ends of the base plate are provided with a liquid inlet and a liquid outlet, the liquid inlet is communicated with the flow distribution cavity, and the liquid inlet is used for injecting cooling liquid, and the liquid outlet is communicated with the flow collecting cavity, and the liquid outlet is used for cooling liquid.
2. The lighting device with self-adaptive heat dissipation and sealing state adjustment according to claim 1, wherein a first gear part is arranged at one end of the shaft rod close to the transmission rod, a second gear part is arranged at one end of the transmission rod close to the shaft rod, and the first gear part and the second gear part are meshed.
3. The lighting device with self-adaptive heat dissipation and sealing states being adjustable according to claim 1, wherein a connecting portion is arranged on one side of the movable cover body in a downward extending mode, an ear plate is arranged on one side of the fixed cover body, a bearing hole is formed in the ear plate, a ball bearing is arranged in the bearing hole, the shaft rod is connected with an inner ring of the ball bearing, and the connecting portion is fixedly connected to the shaft rod.
4. A heat sink and seal state adaptively adjustable lighting device as defined in claim 1, wherein said manifold and said manifold are each provided with a plurality of protrusions.
5. The lighting device of claim 1, further comprising a liquid inlet connector, a liquid outlet connector, a water inlet pipe and a water outlet pipe, wherein the liquid inlet connector is communicated with the liquid inlet, the water inlet pipe is detachably connected with the liquid inlet connector, the liquid outlet connector is communicated with the liquid outlet, and the water outlet pipe is detachably connected with the liquid outlet connector.
6. The lighting device with self-adaptive heat dissipation and sealing state adjustment function according to claim 1, wherein a sealing groove is arranged on the upper end face of the fixed cover body, a sealing ring is arranged in the sealing groove, and when the movable cover body closes the top opening under the action of elastic force, the inner surface of the movable cover body is tightly attached to the sealing ring.
7. A method of adjusting a heat sink and seal state adaptively adjustable lighting device as defined in any one of claims 1-6, comprising: When the temperature of a heat source generated by a heat source of the lighting equipment rises to an opening threshold value, the metal corrugated pipe is positively deformed to be elongated, so that the movable cover body is driven to be opened from a closed position; When the temperature of the heat source is reduced to the closing threshold, the metal corrugated pipe is reversely deformed to shrink, so that the movable cover body is restored to the closing position under the action of elasticity.

Description

Lighting equipment with self-adaptive adjustment of heat dissipation and sealing state and adjustment method Technical Field The invention relates to the technical field of lighting equipment, in particular to lighting equipment with self-adaptive adjustment of heat dissipation and sealing states and an adjusting method. Background The heat dissipation design and the sealing protection of the existing outdoor or high-power lighting equipment always have contradiction that is difficult to reconcile. To ensure waterproof and dustproof reliability, lamps usually employ a completely sealed housing, which severely hinders the dissipation of internal heat. For high power density LED lighting units, the accumulated heat will lead to light efficiency decay, color temperature drift, and significantly shortened lifetime. In order to improve heat dissipation, common schemes in the prior art have obvious defects that firstly, the heat dissipation fins are additionally arranged on the sealing shell, passive heat conduction is only relied on, the heat dissipation capacity is improved only to a limited extent, and transient high loads cannot be dealt with. And secondly, a vent hole which can be opened and closed manually or electrically is formed in the shell, or an internal circulating fan is additionally arranged. The scheme damages the protection integrity when being opened, is easy to introduce moisture and dust, has low reliability in a severe outdoor environment, and increases the structural complexity and the energy consumption. And thirdly, an independent temperature control device (such as a temperature control switch) is adopted to be matched with a motor to drive a movable part, and the scheme relies on a circuit and a sensor, so that the problems of response delay, easiness in failure of an electronic element in a high-temperature and high-humidity environment, extra power consumption and the like exist, and the stability and the durability of the system are poor. Therefore, it is necessary to design a lighting device capable of fundamentally realizing automatic self-adaptive adjustment of heat dissipation and sealing state. Disclosure of Invention The invention aims to overcome the defects of the prior art and provides illumination equipment with self-adaptive adjustment of heat dissipation and sealing states and an adjustment method. In order to achieve the above purpose, the present invention adopts the following technical scheme: On the one hand, the invention provides illumination equipment with self-adaptive adjustment of heat dissipation and sealing states, which comprises a substrate, a metal corrugated pipe, a light-emitting unit, a fixed cover body and a movable cover body, wherein a cooling cavity for cooling liquid to circulate is formed in the substrate, the light-emitting unit is arranged on the upper surface of the substrate, the fixed cover body is fixed on the upper surface of the substrate and surrounds the periphery of the light-emitting unit, the fixed cover body is provided with a top opening, the movable cover body is elastically arranged relative to the fixed cover body and can open or close the top opening, the metal corrugated pipe is arranged close to the light-emitting unit, and a phase change working medium is filled in the metal corrugated pipe so as to absorb heat to stretch, and when the metal corrugated pipe is not stretched, the movable cover body closes the top opening under the action of elasticity, and when the metal corrugated pipe stretches due to temperature rise, the movable cover body is driven to open the top opening. Further, still include drive assembly, drive assembly includes axostylus axostyle, transfer line and spliced pole, the spliced pole perpendicular to metal bellows and axostylus axostyle set up, transfer line movable sleeve is located on the spliced pole, the fixed cover body with the movable cover body passes through the axostylus axostyle articulates, still be equipped with the torsional spring on the axostylus axostyle, the torsional spring to the elasticity of closure direction is applyed to the movable cover body, the transfer line is close to the one end of metal bellows is equipped with the cam, the transfer line is close to the one end of axostylus axostyle with axostyle gear connection, works as when metal bellows stretches because of the temperature rise, metal bellows will to the cam exerts thrust, so that the transfer line for the spliced pole rotates, and then makes the axostylus axostyle drives the movable cover body moves to the direction of opening. Further, the base plate is equipped with the mounting groove, the metal bellows is located in the mounting groove, the metal bellows includes free end and stiff end, the stiff end is fixed in the mounting groove, the free end is equipped with the edge the top portion that extends of metal bellows length direction, the cam corresponds to the position of top portion is equipped with the top spacin