A kind of long-life weatherproof switch power supply
The utility model is related to electrical equipment technical field, specially a kind of long-life weatherproof switch power supply.
At present, Switching Power Supply is widely used almost all of electronic equipment with small-sized, light weight and efficient feature, is opened
Powered-down source is general to be made up of pulse width modulation control IC and MOSFET, and Switching Power Supply is to utilize modern power electronics technology, control
The time ratio that switching tube processed is turned on and off, maintains a kind of power supply of regulated output voltage, is that current electronics and information industry flies
The indispensable a kind of power mode of speed development, with the development and innovation of Power Electronic Technique so that switch power technology
Innovated constantly, and in Switching Power Supply, heat is come by electricity conversion：Electric current flows through component and connecting line, connection
Point produces heat-energy losses；The magnetic hystersis loss produced by iron core in transformer；Conductive material and insulation near transformer
Material, because the presence of alternating magnetic field and alternating electric field produces eddy-current loss and dielectric loss respectively, so needing split powered-down
Source carries out heat dissipation design, and the fan in Switching Power Supply have impact on the service life of power supply as consumable accessory.
The content of the invention
The purpose of this utility model is to provide a kind of long-life weatherproof switch power supply, to solve to be carried in above-mentioned background technology
The problem for going out, is had an advantageous effect in that：With good heat dissipation effect, advantages of simple is easily realized, low cost of manufacture, is adapted to
It is widely popularized and uses.
To achieve the above object, the utility model provides following technical scheme：A kind of long-life weatherproof switch power supply, including
Casing and fixed mount, the casing internal are provided with interior room, and circuit board is installed with the interior room, pacify on the circuit board
Equipped with line bank and transformer, and line bank is arranged on transformer outside, and heat conduction cotton is provided between the transformer and casing,
Two ends are provided with frame projection and chute on the casing, and frame projection is arranged on chute outside, the casing two side ends
Face is installed with fin, and the connection of the casing and cover is the mounting groove by the inserted block on cover and casing end
It is connected, and screwed hole is provided with the fixture block of casing and cover, fresh air inlet and incoming line is provided with the fixture block, and
Fresh air inlet is arranged on the top of incoming line, and the fixed mount is fixedly mounted on cover inner side, radiation air is provided with the cover
Preferably, the fin is made up of 6063 aluminum alloy materials.
Preferably, it is provided with dustproof filter screen on the fresh air inlet and radiating air port.
Preferably, the incoming line keeps level with line bank.
Preferably, the radiating air port is arranged on the inner side of inserted block.
Compared with prior art, the beneficial effects of the utility model are：The equipment is used and increased between transformer and casing
If heat conduction cotton, heat conduction is carried out between convenient and casing, and coordinate the fin installed outside casing, effectively equipment is dissipated
Heat, and side air inlet is used, the mode of top air-out is risen using hot blast, outside cold wind is flowed through circuit board pair and is set
It is standby to be radiated, while the transformer big to caloric value is sufficiently radiated, effectively reduce the work of electronic component in equipment
Make temperature, improve the service life of equipment, and dustproof filter screen is set, prevent in extraneous dust access arrangement, effectively to equipment
Protected, this equipment cooling mechanism advantages of simple, good heat dissipation effect, easily realized, low cost of manufacture, being adapted to be widely popularized is made
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is dorsal view of the present utility model；
Fig. 3 is the outboard structure schematic diagram of the utility model cover.
In figure：1- line banks；2- frame projections；3- chutes；4- transformers；5- heat conduction cottons；6- circuit boards；7- fin；
8- casings；9- mounting grooves；10- interior rooms；11- screwed holes；12- fresh air inlets；13- incoming lines；14- inserted blocks；15- radiatings air port；16-
Cover；17- fixture blocks；18- fixed mounts.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Refer to Fig. 1-3, a kind of embodiment that the utility model is provided：A kind of long-life weatherproof switch power supply, including machine
Shell 8 and fixed mount 18, casing 8 are internally provided with interior room 10, and circuit board 6 is installed with interior room 10, are provided with circuit board 6
Line bank 1 and transformer 4, and line bank 1 is arranged on the outside of transformer 4, and heat conduction cotton 5 is provided between transformer 4 and casing 8,
Two ends are provided with frame projection 2 and chute 3 on casing 8, and frame projection 2 is arranged on the outside of chute 3, the both sides end face of casing 8
Fin 7 is installed with, the connection of casing 8 and cover 16 is the peace by the inserted block 14 on cover 16 and the end of casing 8
Tankage 9 is connected, and screwed hole 11 is provided with the fixture block 17 of casing 8 and cover 16, and fresh air inlet is provided with fixture block 17
12 and incoming line 13, and fresh air inlet 12 is arranged on the top of incoming line 13, fixed mount 18 is fixedly mounted on the inner side of cover 16, cover
Radiating air port 15 is provided with 16, fin 7 is made up of 6063 aluminum alloy materials, is provided with fresh air inlet 12 and radiating air port 15
Dustproof filter screen, incoming line 13 keeps level with line bank 1, and radiating air port 15 is arranged on the inner side of inserted block 14.
Operation principle：When using, by equipment line attachment, the heat that the big transformer 4 of caloric value is produced is from cover
Radiating air port 15 on 16 is discharged, and makes the air pressure in equipment in negative pressure, and extraneous cold wind is under pressure from fresh air inlet therewith
12 enter, and flow through circuit board 6 slowly, and electronic component is lowered the temperature, and heat conduction cotton 5 is provided between transformer 4 and casing 8,
Heat conduction between convenient and casing 8, and coordinate fin 7, improve the radiating effect of equipment.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can in other specific forms realize that this practicality is new
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation