CN-122028341-A - Dustproof LED power of heat dissipation is adjusted in control by temperature change

Abstract

The invention discloses a temperature-control heat-dissipation and dust-proof LED power supply, which relates to the technical field of LED power supplies, wherein a group of opposite side walls of a power supply shell are provided with heat-dissipation side plates, heat-dissipation holes A which are arranged in an array are formed in the heat-dissipation side plates, baffle plates capable of opening and closing the heat-dissipation holes A are connected in a sliding manner, hydraulic rods are respectively arranged in the shell and correspond to the baffle plates, the driving ends of the hydraulic rods are hinged with the baffle plates, mineral wax media are filled in the hydraulic rods, the mineral wax media are configured to be melted into a liquid state at a designated temperature, and the movable ends of the hydraulic rods are controlled to drive the baffle plates to open the heat-dissipation holes A, so that the contradiction between temperature-control heat dissipation adjustment and heat dissipation can be realized to a certain extent.

Inventors

• XIAO LIANG
• ZHANG ANHUI
• XIE LIJIN

Assignees

• 东莞市倍祺电子科技有限公司

Dates

Publication Date

20260512

Application Date

20260317

Claims (10)

1. 1. The temperature-control heat-dissipation and dust-proof LED power supply comprises a shell with a built-in PCB and wiring, and is characterized in that, A group of opposite side walls of the shell are provided with radiating side plates, radiating holes A which are arranged in an array are formed in the radiating side plates, and the inner side surfaces of the radiating side plates are connected with baffles which can open and close the radiating holes A in a sliding manner; The shell is respectively provided with a hydraulic rod corresponding to the baffle, the driving end of the hydraulic rod is hinged with the baffle, mineral wax media are filled in the hydraulic rod, and the mineral wax media are configured to be melted into liquid at a specified temperature and control the movable end of the hydraulic rod to drive the baffle to open the heat dissipation holes A.
2. 2. The LED power supply according to claim 1, wherein the baffle plate is synchronously provided with heat dissipation holes B distributed in an array corresponding to the heat dissipation side plates, and the relative positions of the baffle plate and the heat dissipation side plates are configured such that when the driving end of the hydraulic rod is in a retracted state, the heat dissipation holes A and the heat dissipation holes B are arranged in a staggered manner, and when the driving end of the hydraulic rod is in an extended state, the heat dissipation holes A and the heat dissipation holes B are aligned and communicated with the inside and the outside of the shell.
3. 3. The LED power supply of claim 1, wherein the heat sink side plate is rotatably connected to the housing, and the hydraulic rod drives the shutter to move in a direction near the top of the housing when the shutter opens the heat sink a, and pushes the heat sink side plate to rotate outwards relative to the top of the housing to form a side wall inclined.
4. 4. The LED power supply of claim 3, wherein the heat dissipating hole a is divided into an upper part and a lower part along a top-to-bottom direction of the housing, an axis of the heat dissipating hole a in the upper part is inclined toward the top of the housing, and an axis of the heat dissipating hole a in the lower part is inclined toward the bottom of the housing.
5. 5. The LED power supply of claim 3, wherein torsion spring stoppers are provided at the top and bottom of the housing corresponding to both ends of the heat-dissipating side plate, and the torsion spring stoppers abut against the outer wall of the heat-dissipating side plate to maintain the closed state of the inclined rear end of the heat-dissipating side plate and the housing.
6. 6. The LED power supply of claim 3, wherein the bottom surface in the housing has a limiting slot corresponding to the lower end of the baffle, and the lower end of the baffle is clamped with the limiting slot when the hydraulic rod is in the retracted state.
7. 7. The LED power supply of claim 6, wherein two ends of the clamping groove extend out of the mounting groove perpendicular to the baffle plate, a return spring is arranged in the mounting groove, one end of the return spring is hinged to the bottom of the mounting groove, and the other end of the return spring is fixedly connected with the baffle plate.
8. 8. The LED power supply of claim 6, wherein a filter screen is disposed on a surface of the baffle plate near the heat-dissipating side plate, a brush bar is disposed on a side of the heat-dissipating side plate corresponding to the baffle plate, the limit clamping groove is a through groove without a groove bottom, the brush bar can clean the filter screen when the baffle plate and the side plate slide relatively, and the cleaned dust is discharged out of the housing through the limit clamping groove.
9. 9. The LED power supply according to claim 1, wherein two sides of the baffle in the horizontal direction are respectively provided with a T-shaped chute, and the heat dissipation side plates are correspondingly provided with T-shaped sliding strips.
10. 10. The LED power supply of any of claims 1-9, further comprising a light sensor and a multi-channel connector, the light sensor and the pair of channel connectors being electrically connected to the PCB, respectively, the multi-channel connector and the housing end being sealingly connected via a waterproof glue injection.

Description

Dustproof LED power of heat dissipation is adjusted in control by temperature change Technical Field The invention relates to the technical field of LED power supplies, in particular to a temperature-control heat-dissipation and dust-proof LED power supply. Background The LED driving power supply is used as a core component of the LED lighting system, and the reliability and the stability of the long-term operation of the LED driving power supply are important. Internal power electronics, particularly power devices, generate heat during operation. If the heat cannot be timely dissipated, the temperature of the element is rapidly increased, so that aging and light attenuation are accelerated, and even failure and fire are caused. At present, a common heat dissipation scheme is to provide a large number of heat dissipation holes or grids on the power supply shell so as to enhance air convection. However, this "normally open" design brings the heat dissipation benefits as well as the serious dust protection issues. Dust, floccules, insect pests and the like in the air are easy to enter the shell through the heat dissipation holes. Dust covers the PCB board and components, which may form a heat insulating layer, but rather deteriorate heat dissipation. In order to solve the dustproof problem, some schemes of the prior art try to use a temperature control valve or an electric control shutter, detect temperature through a sensor, and control a motor or an electromagnetic valve to open and close a vent. Such schemes, while advanced in concept, introduce electronic control systems that add significant cost. In the prior art, more schemes can adopt a mode of additionally installing a dust screen or filter cotton on the inner side of a heat dissipation hole, and because the structures are also easy to be blocked by dust, new problems are formed, and some high-end schemes adopt an internal fan matched filter screen or an electric control cleaning structure, but extra motors bring extra power consumption and even extra heating sources, and the technical scheme still has an optimized space. Therefore, there is a need in the art for a heat dissipation and dust protection technique for LED power supplies that can respond to internal temperature, balance heat dissipation and dust protection requirements, and have both high reliability and low cost. Disclosure of Invention The invention aims to provide an LED power supply which is not electrically controlled and can balance heat dissipation and dust prevention contradiction to a certain extent. The technical scheme adopted by the invention is as follows: a temperature-control heat-dissipation and dust-proof LED power supply comprises a shell which is internally provided with a PCB and wiring; a group of opposite side walls of the shell are provided with radiating side plates, radiating holes A which are arranged in an array are formed in the radiating side plates, and the inner side surfaces of the radiating side plates are connected with baffles which can open and close the radiating holes A in a sliding manner; The shell is respectively provided with a hydraulic rod corresponding to the baffle, the driving end of the hydraulic rod is hinged with the baffle, mineral wax media are filled in the hydraulic rod, and the mineral wax media are configured to be melted into liquid at a specified temperature and control the movable end of the hydraulic rod to drive the baffle to open the heat dissipation holes A. Namely, one core technical means of the invention is that the hydraulic rod is internally packaged with a special mineral wax medium. The medium is proportioned to enable the phase change temperature of the medium to be matched with the ideal upper limit of the working temperature of the LED power supply. When the temperature in the shell is lower than a set threshold value, the mineral wax is kept in a solid state, the hydraulic rod is in a contracted state, and the baffle plate completely seals the heat dissipation hole A, so that the dust prevention is completely sealed. When the power supply works to generate heat, and the internal temperature is increased to the melting point of the mineral wax, the mineral wax is melted into a liquid state and expands in volume, and the piston of the hydraulic rod is driven to extend. The piston pushes the baffle plate to slide, so that the heat dissipation holes A are gradually opened. Preferably, the baffle plate is synchronously provided with radiating holes B distributed in an array corresponding to the radiating side plates, the relative positions of the baffle plate and the radiating side plates are configured in such a way that when the driving end of the hydraulic rod is in a retracted state, the radiating holes A and the radiating holes B are arranged in a staggered mode, and when the driving end of the hydraulic rod is in an extended state, the radiating holes A and the radiating holes B are aligned and communicated with th