CN202282936U - Heat radiation device of switch power supply heating device - Google Patents
Heat radiation device of switch power supply heating device Download PDFInfo
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- CN202282936U CN202282936U CN2011203311485U CN201120331148U CN202282936U CN 202282936 U CN202282936 U CN 202282936U CN 2011203311485 U CN2011203311485 U CN 2011203311485U CN 201120331148 U CN201120331148 U CN 201120331148U CN 202282936 U CN202282936 U CN 202282936U
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Abstract
The present utility model relates to a heat radiation device of a switch power supply heating device. The heat radiation device comprises a pedestal, heat conduction pads, a heat radiation cover body, a printed wiring board, and the heating device fixed and electrically connected on the printed circuit board. The heating device is a switch transformer or/and an inductor or/and a power device. The pedestal is a square aluminum alloy section bar integral body formed by successively connecting a left side plate, a bottom plate and a right side plate, and the left side plate is provided with a circuit board slot which is on the lower part and a cover body slot which is on the upper part. The printed circuit board is plugged into the circuit board slot of the pedestal, and fixed on the pedestal through a fastening piece. The heat radiation cover body is an aluminum alloy or copper alloy metal plate body, and is provided with a protruding part which is corresponding to the shape of the upper surface of the heating device. Lower surfaces of the heat conduction pads are pasted on the upper surface of the heating device, the lower surface of the protruding part of the heat radiation cover body is covered on the upper surfaces of the heat conduction pads, and edge parts of left and right sides of the protruding part are inserted into the cover body slot of the pedestal.
Description
Technical field
The utility model relates to a kind of case member of Switching Power Supply, relates to a kind of heat abstractor of Switching Power Supply heater members especially.
Background technology
High speed development along with power electronic technology; The relation of power electronic equipment and people's work, life is close day by day; And electronic equipment all be unable to do without reliable power supply; The Switching Power Supplyization that got into the computer power supply round Realization eighties, the power supply that takes the lead in accomplishing computer is regenerated, and gets into nineties Switching Power Supply and gets into various electronics, electric equipment field in succession; Stored-program control exchange, communication, electron detection device power supply, control appliance power supply etc. have all used Switching Power Supply widely, have more promoted developing rapidly of switch power technology.
Usually Switching Power Supply comprises longitudinal casing and fixing printed substrate in the enclosure of an aluminum alloy material or steel, is fixed with various electronic devices and components such as switch transformer, switching tube, rectifying tube, magnet ring, resistance on the printed substrate.The heat dispersion of qualified Switching Power Supply requires; Under 50 ℃ constant temperature oven environment; The temperature that works long hours of heating electronic component is no more than 120 ℃ on the printed substrate of Switching Power Supply; Otherwise electronic devices and components can damage, so also are provided with heat abstractors such as fin or fan between the shell of Switching Power Supply and the printed substrate.And if its power of Switching Power Supply of selling on the market at present is more than 200 watts; Being necessary for Switching Power Supply is provided with fan and obtains better radiating effect; And radiator fan is set between shell and printed substrate; On the one hand increased manufacturing cost undoubtedly greatly, increased the maintenance maintenance expense of later stage fan damage etc. simultaneously, and reduced the mobility of Switching Power Supply, anti-falling property and shock resistance; And be the shortest the useful life of all parts fan of Switching Power Supply, so the design of fan has obviously influenced the useful life of Switching Power Supply; After on the other hand radiator fan being set, need to consider the design in air channel in the Switching Power Supply, then influenced the design of printed substrate, increased design cost; And after Switching Power Supply is provided with radiator fan, increased the circulation of air speed in the Switching Power Supply undoubtedly greatly, and obviously speeded the dust accumulation in the Switching Power Supply, shorten the useful life of Switching Power Supply.
In addition; The heat radiation setting of the power device that comprises switching tube and rectifying tube of present Switching Power Supply is: between the side plate of power device and base, be lined with heat conductivility silica gel sheet preferably; And then be connected the side of 2 to 3 power devices through a radiating fin; And radiating fin is fixed on the side plate of base through securing member; And power device is between silica gel sheet and radiating fin, and the heat that is produced during power device work through the radiating fin heat radiation, conducts on the base through the silica gel sheet on the other hand and dispels the heat on the one hand; If but thereby when being provided with other electronic devices and components around the power device and causing the space of radiating fin not being set around the power device, the heat radiation of power device has just become problem.
Summary of the invention
The technical problem that the utility model will solve is to be the Switching Power Supply of power in 200 to 500 watts scope, provide a kind of radiating effect that need not radiator fan better, manufacturing cost is lower and useful life the heat abstractor of long Switching Power Supply heater members.
Realize that the technical scheme of the utility model purpose provides a kind of heat abstractor of Switching Power Supply heater members, comprises base, printed wiring board and heater members.Heater members be switch transformer or/and inductance or/and power device.The aluminium alloy or the copper alloy section bar integral piece of the square frame shape that base constitutes for being linked to each other successively by left plate, base plate and right plate, and on left plate and right plate, be provided with the relative wiring board slot that is positioned at the bottom.Printed wiring board is plugged on the wiring board slot of base by the left and right sides of its plate body, and is fixed on the base by securing member.Heater members is fixed and is connected electrically on the printed wiring board.
The heat abstractor of above-mentioned Switching Power Supply heater members also comprises heat conduction pad and heat radiation lid.Base also is provided with relative superposed lid slot on its left plate and right plate.
The heat conduction pad is the heat conduction pad of high-temperature insulation flexibility.The heat radiation lid is the tabular integral piece of aluminium alloy or copper alloy, and the heat radiation lid is provided with the corresponding boss of shape with the upper face of heater members.The heat conduction pad is covered on the upper face of the heater members of fitting by its lower surface.The heat radiation lid is fitted on the upper surface of heat conduction pad by the lower surface covering of its boss; And stretch into by the edge of its left and right sides in the lid slot of base; Thereby the heat conduction pad is pressed on the upper face of heater members, and makes that the shape of heat conduction pad is corresponding with the upper surface of heater members.
The heat conduction pad is a silicone rubber pad, has the characteristic of the high temperature of tolerance more than 200 ℃.The heat conduction pad thickness be 1 to 3mm.
The heat abstractor of above-mentioned Switching Power Supply heater members also comprises the locking post.The locking post is the solid cylinder of being processed by aluminium alloy or Cu alloy material, and to being horizontally disposed with, its left end head and right-hand member head are equipped with screw about the edge.Locking post about to equal in length in the left plate of base and the distance between the right plate; And the locking post is between the left plate and right plate of base; Pass the left plate and right plate of base respectively by corresponding trip bolt after; Screw respectively on the screw of end about the locking post, be fixed on the base and will lock post.
The heat radiation lid also comprises and stops board, connects board and heat radiation board.The heat radiation board, connect board, boss and stop that board links to each other according to from front to back order successively.
The heat radiation board comprises left side guiding board, central board and right guiding board.Be provided with 10 to 20 louvres according to from left to right order on the upper side of central authorities' board.Guiding board in a left side is connected the left end of central board from the below, right guiding board is connected the right-hand member of central board from the below, and left side guiding board is with right guiding board and is symmetrical set.The shape of left side guiding board is corresponding with the shape of the lid slot of the left plate of base, and the shape of right guiding board is corresponding with the shape of the lid slot of the right plate of base.The rear portion of left side guiding board be provided with about 1 to the installation screw, the corresponding position, rear portion of right guiding board also be provided with about 1 to the installation screw.
The heat radiation lid is stretched into respectively by its left side guiding board and right guide plate portion in the wiring board slot of wiring board slot and right plate of left plate of base; After corresponding trip bolt passes the left plate and right plate of base respectively; Screw respectively on the installation screw of the left side of heat radiation board guiding board and on the installation screw of right guiding board, thereby the lid that will dispel the heat is fixed on the base.
The downside of the base plate of base is provided with 2 to 4 grooves before and after running through according to from left to right order, and on the plate body that is positioned at the groove position of base plate according to about backward order sets gradually in the past to and 10 to 20 strip louvres running through plate body at upward and downward.Heat radiation grooves before and after running through according to 4 to 6 of from top to bottom order setting on the left surface of left plate.Heat radiation grooves before and after running through according to 4 to 6 of from top to bottom order setting on the right flank of right plate.
Heater members is a switch transformer, and shape and the shape behind the heat conduction gasket compression of the boss of heat radiation lid is all corresponding with the shape of the upper surface of switch transformer.The heat conduction pad is covered by its lower surface on the upper face of the switch transformer of fitting, and the heat radiation lid is covered on the upper surface that is fitted in heat conduction pad (2) and through securing member by the lower surface of its boss and is fixed on the base.
Heater members is an inductance, and the shape of shape and the heat conduction pad of the boss of heat radiation lid is all corresponding with the shape of the upper surface of inductance.The heat conduction pad is covered on the upper face of the inductance of fitting by its lower surface; The heat radiation lid is covered by the lower surface of its boss and is fitted on the upper surface of heat conduction pad, and is stretched into by its left side guiding board and right guiding board in the wiring board slot of base and through securing member and be fixed on the base.
Heater members is a power device, and power device is a switching tube or/and rectifying tube, and the shape of the boss of heat radiation lid and the shape of heat conduction pad are all corresponding with the shape of the upper surface of power device.The heat conduction pad is covered on the upper face of the power device of fitting by its lower surface; The heat radiation lid is covered by the lower surface of its boss and is fitted on the upper surface of heat conduction pad, and is stretched into by its left side guiding board and right guiding board in the wiring board slot of base and through securing member and be fixed on the base.
The utlity model has positive effect: the construction for heat radiating device of the Switching Power Supply heater members of (1) the utility model is ingenious; The Switching Power Supply of using this heat abstractor is under 50 ℃ constant temperature oven environment; The temperature that works long hours that comprises the heater members of switch transformer on the printed substrate of Switching Power Supply can be above 120 ℃; Basicly stable radiating efficiency is better at 110 ℃, and the Switching Power Supply that the design that need not fan promptly can be 200 to 500 watts of power provides stable operational environment.
(2) the heat abstractor manufacturing cost of the Switching Power Supply heater members of the utility model is lower, and all kinds of production costs have been practiced thrift in the design of cancellation fan greatly.
(3) heat abstractor of the heater members of the utility model is owing to adopt the design of no fan, and the useful life of the Switching Power Supply of feasible this heat abstractor of application is longer, and outward appearance is also more attractive in appearance.
(4) mobility, anti-falling property and the shock resistance of the Switching Power Supply of the heat abstractor of the heater members of application the utility model are preferable.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model;
Fig. 2 is the structural representation of A when observing from Fig. 1;
Fig. 3 is the structural representation of the base among Fig. 1;
Fig. 4 is the structural representation of the heat radiation lid among Fig. 2;
Fig. 5 is the left view of the heat radiation lid among Fig. 4;
Fig. 6 is the B-B face cutaway view of Fig. 2.
Mark in the above-mentioned accompanying drawing is following:
Base 1, base plate 11, groove 11-1, positioning support 11-2,
Left plate 12, the first protuberance 12-1, stop part 12-2, installation portion 12-3, the second protuberance 12-4, the 3rd protuberance 12-5, lid slot 12-6, wiring board slot 12-7, heat radiation groove 12-8, plate body principal part 12-10,
Right plate 13, the first protuberance 13-1, stop part 13-2, installation portion 13-3, the second protuberance 13-4, the 3rd protuberance 13-5, lid slot 13-6, wiring board slot 13-7, heat radiation groove 13-8, plate body principal part 13-10,
Heat radiation lid 3 stops board 31, and boss 32 connects board 33, heat radiation board 34, and left side guiding board 34-1 installs screw 34-1-1, central board 34-2, louvre 34-2-1, right guiding board 34-3 installs screw 34-3-1,
Printed wiring board 4, heater members 5, switch transformer 51, inductance 52, power device 53,
Locking post 6,
Silica gel sheet 71, radiating fin 72.
Embodiment
In the embodiment of the utility model, the description in orientation is carried out according to orientation shown in Figure 1.
(embodiment 1)
See Fig. 2 and Fig. 6, the heat abstractor of the Switching Power Supply heater members of present embodiment comprises base 1, heat conduction pad 2, heat radiation lid 3, printed wiring board 4, heater members 5 and locking post 6.The heater members 5 that printed wiring board 4 is provided with comprises switch transformer 51.
See Fig. 1 to Fig. 3; Base 1 is the section bar that is made through extrusion process by aluminium alloy or Cu alloy material to be cut carry out corresponding back processing resulting aluminium alloy in back or copper alloy section bar integral piece again; What present embodiment adopted is that aluminum alloy materials is processed; The model of aluminium alloy extrusions is 6063-T5, is made by the prosperous Fa Science Co., Ltd in Jiangyin City, Jiangsu Province.The cross sectional shape of base 1 is the square frame shape that opening makes progress basically; Base 1 comprises base plate 11, left plate 12 and right plate 13.Base plate 11 is rectangular, is horizontally disposed with; Left plate 12 vertical settings are connected the left end of base plate 11 from the top; Right plate 13 vertical settings are connected the right-hand member of base plate 11 from the top.
Right plate 13 comprises plate body principal part 13-10; The left side of plate body principal part 13-10 is that L shaped stop part 13-2, cross section is rectangular installation portion 13-3, the second protuberance 13-4 and the 3rd protuberance 13-5 according to the first protuberance 13-1, the cross section that from the top down order is provided with before and after connecting successively.The thickness of installation portion 13-3 (about to distance) is 0.6 to 1 centimetre, installation portion 13-3 after add have man-hour some about to through hole and be used for the installation power device; The left surface of the downside of stop part 13-2, plate body principal part 13-10, the upper side of installation portion 13-3 and the space that is surrounded form lid slot 13-6; The space that the left surface of the second protuberance 13-4, plate body principal part 13-10 and the 3rd protuberance 13-5 are surrounded forms wiring board slot 13-7, and the thickness of the 3rd protuberance 13-5 (upward and downward distance) is greater than the thickness (upward and downward distance) of the second protuberance 13-4; Be provided with 5 heat radiation groove 13-8 before and after running through according to from top to bottom order on the right flank of the plate body principal part 13-10 of right plate 13; The plate body principal part 13-10 of right plate 13 on the plate body between stop part 13-2 and the installation portion 13-3 apart from add after front end 3cm is in have man-hour about one to first connecting hole, the plate body principal part 13-10 of right plate 13 on the plate body between stop part 13-2 and the installation portion 13-3 apart from add after rear end 3cm is in have man-hour about one to second connecting hole.The plate body principal part 13-10 of right plate 13 the plate body rear and front end between stop part 13-2 and the installation portion 13-3 each after add have man-hour about one to the installation screw; The plate body principal part 13-10 of right plate 13 the plate body rear and front end between the stop part 13-2 and the second protuberance 13-4 each after add have man-hour about one to the installation screw, these 4 screws are installed and are used for installing and fixing of whole Switching Power Supply.Left plate 12 is corresponding with the structure of right plate 13, and both are along the vertical guide left-right symmetric of the center line of the base plate 11 of process base 1.Left plate 12 also comprises plate body principal part 12-10 and is successively set on the first protuberance 12-1 before and after the perforation on right side of plate body principal part 12-10, stop part 12-2, installation portion 12-3, the second protuberance 12-4 and the 3rd protuberance 12-5 from top to bottom; Left plate 12 also comprises the lid slot 12-6 and the wiring board slot 12-7 of corresponding formation; Left plate 12 also comprises the heat radiation groove 12-8 before and after running through according to 5 of from top to bottom order setting on the left surface that is positioned at plate body principal part 12-10 accordingly; Add after the relevant position of the plate body principal part 12-10 of left plate 12 is in and have first connecting hole, second connecting hole, through hole and installation screw man-hour.
The downside of base plate 11 is provided with 2 groove 11-1 that run through front and back according to order from left to right; Be used to improve the heat dispersion of base 1, and on the plate body that is positioned at groove 11-1 position of base plate 11 according to about in the past backward order sets gradually to and 15 strip louvres running through plate body at upward and downward.Base plate 11 on the plate body of its rear end 1cm after add the installing hole that has some man-hour, this installing hole is used for installing and fixing of whole Switching Power Supply.The postmedian of base plate 11 after add and also have 1 positioning support hole man-hour, base plate 11 also comprises 1 positioning support 11-2, the upper end cylinder of positioning support 11-2 is cylindrical, is provided with internal thread.Positioning support 11-2 passes the positioning support hole of base plate 11, and riveted and fixed is on base plate 11, and the cylinder of the upper end of positioning support 11-2 upwards stretches out base plate 11.
See Fig. 5, heat conduction pad 2 is heat conduction pads that a kind of insulation, Heat Conduction Material high temperature resistant, better softness are processed, and has the characteristic of the high temperature of tolerance more than 200 ℃, and what present embodiment adopted is silicagel pad, and capacity of heat transmission is excellent; The size of heat conduction pad 2 is corresponding with the upper surface of heater members 5, and in the present embodiment, the size of heat conduction pad 2 is corresponding with the upper surface of switch transformer 51, is 25mm to length about it, and front and back are 45mm to length, and thickness is 3mm.
See Fig. 1, Fig. 2, Fig. 4 and Fig. 5; Heat radiation lid 3 is processed by aluminium alloy or Cu alloy material; The heat radiation lid 3 of present embodiment is to be cut by the section bar that aluminum alloy materials makes through extrusion process to carry out the resulting aluminium alloy extrusions integral piece in processing back, corresponding back again; The model of aluminium section bar is 6063-T5, is made by the prosperous Fa Science Co., Ltd in Jiangyin City, Jiangsu Province.The front and back of heat radiation lid 3 are 90mm to length, heat radiation lid 3 by stop board 31, be connected the boss 32 that stops board 31 rear ends, the connection board 33 that is connected boss 32 rear ends be connected the heat radiation board 34 that is connected board 33 rear ends and form.The cross sectional shape that stops board 31 is 90 ° L shaped of turning clockwise, about to length and switch transformer 51 about corresponding to length; The cross sectional shape of boss 32 is minor arc shape, the big 2mm of the radius of the iron core of its radius ratio switch transformer 51, and sagittal length is corresponding to length with the front and back of the iron core of switch transformer 51.Connect board 33 about distance between the plate body principal part of length and the left side plate 12,13 of base 1 corresponding.Heat radiation board 34 comprises left side guiding board 34-1, central board 34-2 and right guiding board 34-3.The cross sectional shape of the board 34-2 of central authorities becomes choosing counterclockwise to adorn 90 ° L shaped, and its sagittal length is 40mm, and the louvre 34-2-1 that is provided with 14 strips according to from left to right order on the upper side of central board 34-2 is to obtain better radiating effect.Left side guiding board 34-1 is connected the left end of central board 34-2 from the below, right guiding board 34-3 is connected the right-hand member of central board 34-2 from the below, and left side guiding board 34-1 is with right guiding board 34-3 and is symmetrical set.The shape of left side guiding board 34-1 is corresponding with the shape of the lid slot 12-6 of the left plate 12 of base 1, and the shape of right guiding board 34-3 is corresponding with the shape of the lid slot 13-6 of the right plate 13 of base 1; The rear portion of left side guiding board 34-1 be provided with about 1 to installation screw 34-1-1, the corresponding position, rear portion of right guiding board 34-3 also be provided with about 1 to installation screw 34-3-1.
See Fig. 2; The solid cylinder that locking post 6 is processed by aluminium alloy or Cu alloy material; The locking post 6 of present embodiment is to be processed by aluminum alloy materials; To the distance of equal in length between the plate body principal part of the left plate 12 of base 1 and right plate 13, diameter is less than the stop part 13-2 of the plate body principal part 13-10 of the right plate 13 of base 1 and the distance between the installation portion 13-3 about it.The right ends of locking post 6 is equipped with the installation screw.
The shape of printed wiring board 4 matches with the shape of the base plate 11 of base 1; All kinds of electronic devices and components that comprise heater members 5 are housed on the printed wiring board 4; Switch transformer 51 is promptly fixed and is connected electrically on the printed wiring board 4, and is positioned at the front portion of printed wiring board 4.Switch transformer 51
Printed wiring board 4 moves to the relevant position along front and back in the wiring board slot 13-7 of the wiring board slot 12-7 of the left plate that inserts base 1 simultaneously 12 and right plate 13, thereby pass from the top down in the positioning support 11-2 on the base plate 11 that screws in base 1 on the printed wiring board 4 behind corresponding one first connecting hole through 1 screw then printed wiring board 4 is fixed on the base 1.Then heat conduction pad 2 is covered by its lower surface and be fitted on the upper face of switch transformer 51; To dispel the heat the again position alignment of iron core of position and switch transformer 51 of boss 32 of lid 3; The left side guiding board 34-1 of heat radiation board 34 of lid 3 of will dispelling the heat then inserts in the lid slot 12-6 of left plate 12 of base 1; Make heat radiation lid 3 be fitted on the upper surface of heat conduction pad 2 by the lower surface covering of its boss 32; Utilize the toughness of base 1 to break the left side plate 12,13 of base 1 slightly into two with one's hands again; Thereby the right side of the heat radiation board 34 of the lid 3 that will dispel the heat guiding board 34-3 inserts in the lid slot 13-6 of right plate 13 of base 1; The installation screw 34-3-1 on first connecting hole on the plate body between stop part 12-2 and the installation portion 12-3, right guiding board 34-3 of plate body principal part 12-10 that the position of adjustment heat radiation lid 3 makes the installation screw 34-1-1 on the guiding board 34-1 of a left side aim at the left plate 12 of base 1 aims at first connecting hole on the plate body between stop part 13-2 and the installation portion 13-3 of plate body principal part 13-10 of the right plate 13 of base 1; Screw in the installation screw 34-1-1 on the guiding board 34-1 of the left side of heat radiation lid 3 after passing first connecting hole of plate body principal part 12-10 of left plate 12 of base 1 from left to right through 1 screw then; Screw in the installation screw 34-3-1 on the guiding board 34-3 of the right side of heat radiation lid 3 after passing first connecting hole of plate body principal part 13-10 of right plate 13 of base 1 from right to left through 1 screw again; Thereby the lid 3 that will dispel the heat is fixed on the base 1; And the rear portion that stops board 31, boss 32 and the front portion that is connected board 33 and the heat conduction pad of heat radiation lid 32 be tight to be contacted and the thickness of heat conduction pad 2 is compressed 1mm, and the shape behind heat conduction pad 2 pressurizeds is corresponding with the shape of the upper surface of switch transformer 51.Pass from left to right through 1 screw again and screw behind second connecting hole of plate body principal part 12-10 of left plate 12 of base 1 in the installation screw of the left end of locking post 6; Pass from right to left through other 1 screw and screw behind second connecting hole of plate body principal part 13-10 of right plate 13 of base 1 in the installation screw of the right-hand member of locking post 6; Thereby, the mobility of entire heat dissipation device, anti-falling property and shock resistance have been improved with the left side plate 12 of base 1, locking between 13.
When the heat abstractor of the Switching Power Supply heater members of present embodiment uses; The heat that is produced when working as the switch transformer 51 of heater members 5 conducts on the heat radiation lid 3 through heat conduction pad 2; Through heat radiation lid 3 heat is conducted to whole base 1 again, can make temperature can be stabilized in 110 ℃ thereby make switch transformer 51 need not fan when working long hours.
(embodiment 2)
The heat abstractor and the embodiment 1 of the Switching Power Supply heater members of present embodiment are basic identical, and its difference is: be welded with the heater members 5 that comprises inductance 52 on the printed wiring board 4.Inductance 52 is a filter inductance.The shape of shape and the heat conduction pad of the boss of heat radiation lid is all according to the shape respective production of the upper surface of inductance 52.The heat conduction pad is covered on the upper face of the inductance 52 of fitting by its lower surface; The heat radiation lid is covered by the lower surface of its boss and is fitted on the upper surface of heat conduction pad, and is stretched into by its left side guiding board and right guiding board among the wiring board slot 12-7,13-7 of base 1 and through securing member and be fixed on the base 1.
The heat that is produced during inductance 52 work conducts on the heat radiation lid through the heat conduction pad, through the heat radiation lid heat is conducted to whole base 1 again, can make temperature can be stabilized in 110 ℃ thereby need not fan when making inductance 52 long-term works.
Referring to Fig. 2; Also can be on the basis of embodiment 1; The rear end that stops board 31 at heat radiation lid 3 connects second boss; Second heat conduction pad is set simultaneously, and all according to the shape respective production of the upper surface of inductance 52, the heat that is produced during inductance 52 work conducts on the heat radiation lid 3 through second heat conduction pad the shape of above-mentioned second boss and second heat conduction pad; Through heat radiation lid 3 heat is conducted to whole base 1 again; The heat that is produced during switch transformer 51 work conducts on the heat radiation lid 3 through heat conduction pad 2, through heat radiation lid 3 heat is conducted to whole base 1 again, can make temperature can be stabilized in 110 ℃ thereby need not fan when making inductance 52 with switch transformer 51 long-term works.
(embodiment 3)
The heat abstractor and the embodiment 1 of the Switching Power Supply heater members of present embodiment are basic identical, and its difference is: the shape of shape and the heat conduction pad of the boss of heat radiation lid is all according to the shape respective production of the upper surface of the heater members power device 53 of Switching Power Supply.
Be welded with the heater members 5 that comprises power device 53 on the printed wiring board 4.Power device 53 comprises switching tube and rectifying tube.The shape of shape and the heat conduction pad 2 of the boss 32 of heat radiation lid 3 is all according to the shape respective production of the upper surface of power device 53.
Referring to seeing Fig. 2; The heat radiation setting of the power device 53 of present Switching Power Supply is: between the left plate 12 of power device 53 and base 1 or right plate 13, be lined with heat conductivility silica gel sheet 71 preferably; And then be connected the side of 2 to 3 power devices 53 through a radiating fin 72; And through securing member radiating fin 72 is fixed on the installation portion 13-3 of left and right side plate 12,13 of base 1; And power device 53 is between silica gel sheet 71 and radiating fin 72, and the heat that is produced during power device 53 work through radiating fin 72 heat radiations, conducts to heat radiation on the base 1 through silica gel sheet 71 on the one hand on the other hand.
Thereby but if being provided with other electronic devices and components around the power device 53 causes power device 53 that the space of radiating fin 72 is not set on every side; The heat abstractor of Switching Power Supply heater members that so can be through present embodiment dispels the heat; The power device 53 of the circle among Fig. 2 for example; The heat conduction pad is covered on the upper face of the power device 53 of fitting by its lower surface; The heat radiation lid is covered by the lower surface of its boss and is fitted on the upper surface of heat conduction pad, and is stretched into by its left side guiding board and right guiding board among the wiring board slot 12-7,13-7 of base 1 and through securing member and be fixed on the base 1.
The heat that is produced during power device 53 work conducts on the heat radiation lid through the heat conduction pad, through the heat radiation lid heat is conducted to whole base 1 again, can make temperature can be stabilized in 110 ℃ thereby make power device 53 need not fan when working long hours.
(embodiment 4)
The heat abstractor and the embodiment 3 of the Switching Power Supply heater members of present embodiment are basic identical; Its difference is: printed wiring board 4 is provided with the device connecting hole; The position of the device connecting hole on the base plate 11 corresponding printed wiring boards 4 of base 1 is provided with device screw is installed; After power device is welded on the printed wiring board 4; Thereby a screw passed to screw behind installing hole on the power device, the device connecting hole on the printed wiring board 4 successively to be installed in the screw power device fixedly on the printed wiring board 4 at the device of the base plate 11 of base 1; And the metal fin that power device carries is towards the top, and the shape of the boss of heat radiation lid and the shape of heat conduction pad are all according to the shape respective production of the upper surface of power device.
On the upper face of heat conduction pad by the metal fin of the power device of its lower surface covering applying; The heat radiation lid is covered by the lower surface of its boss and is fitted on the upper surface of heat conduction pad, and is stretched into by its left side guiding board and right guiding board among the wiring board slot 12-7,13-7 of base 1 and through securing member and be fixed on the base 1.
The heat that is produced during power device work conducts on the heat radiation lid through the heat conduction pad, through the heat radiation lid heat is conducted to whole base 1 again, thereby makes that need not fan when power device works long hours can make temperature can be stabilized in 110 ℃.
Claims (8)
1. the heat abstractor of a Switching Power Supply heater members comprises base (1), printed wiring board (4) and heater members (5); Heater members (5) be switch transformer (51) or/and inductance (52) or/and power device (53); Base (1) is by left plate (12), base plate (11) and right plate (13) link to each other the successively aluminium alloy or the copper alloy section bar integral piece of the square frame shape that constitutes, and on left plate (12) and right plate (13), is provided with the relative wiring board slot that is positioned at the bottom (12-7,13-7); Printed wiring board (4) is plugged on the wiring board slot (12-7,13-7) of base (1) by the left and right sides of its plate body, and is fixed on the base (1) by securing member; Heater members (5) is fixed and is connected electrically on the printed wiring board (4); It is characterized in that:
Also comprise heat conduction pad (2) and heat radiation lid (3); Base (1) also is provided with relative superposed lid slot (12-6,13-6) on its left plate (12) and right plate (13);
Heat conduction pad (2) is the heat conduction pad of high-temperature insulation flexibility; Heat radiation lid (3) be the tabular integral piece of aluminium alloy or copper alloy, and heat radiation lid (3) is provided with and the corresponding boss of shape (32) of the upper face of heater members (5); Heat conduction pad (2) is covered on the upper face of the heater members (5) of fitting by its lower surface; Heat radiation lid (3) is fitted on the upper surface of heat conduction pad (2) by the lower surface covering of its boss (32); And stretch into by the edge (34-1,34-3) of its left and right sides in the lid slot (12-6,13-6) of base (1); Thereby heat conduction pad (2) is pressed on the upper face of heater members (5), and makes that the shape of heat conduction pad (2) is corresponding with the upper surface of heater members (5).
2. the heat abstractor of Switching Power Supply heater members according to claim 1 is characterized in that: heat conduction pad (2) is a silicone rubber pad, has the characteristic of the high temperature of tolerance more than 200 ℃; Heat conduction pad (2) thickness be 1 to 3mm.
3. the heat abstractor of Switching Power Supply heater members according to claim 1 is characterized in that: also comprise locking post (6); Locking post (6) is the solid cylinder of being processed by aluminium alloy or Cu alloy material, and to being horizontally disposed with, its left end head and right-hand member head are equipped with screw about the edge; Locking post (6) about to equal in length in the left plate (12) of base (1) and the distance between the right plate (13); And locking post (6) is positioned between the left plate (12) and right plate (13) of base (1); Pass the left plate (12) and right plate (13) of base (1) respectively by corresponding trip bolt after; Screw respectively on the screw of end about locking post (6), be fixed on the base (1) and will lock post (6).
4. the heat abstractor of Switching Power Supply heater members according to claim 1 is characterized in that: heat radiation lid (3) also comprises and stops board (31), connects the board (33) and the board (34) that dispels the heat; Heat radiation board (34), connect board (33), boss (32) and stop that board (31) links to each other according to from front to back order successively;
Heat radiation board (34) comprises left side guiding board (34-1), central board (34-2) and right guiding board (34-3); Be provided with 10 to 20 louvres (34-2-1) according to from left to right order on the upper side of central authorities' boards (34-2); Left side guiding board (34-1) is connected the left end of central board (34-2) from the below; Right guiding board (34-3) is connected the right-hand member of central board (34-2) from the below, and left side guiding board (34-1) is with the right board (34-3) that leads and is symmetrical set; The shape of left side guiding board (34-1) is corresponding with the shape of the lid slot (12-6) of the left plate (12) of base (1), and the shape of right guiding board (34-3) is corresponding with the shape of the lid slot (13-6) of the right plate (13) of base (1); The rear portion of left side guiding board (34-1) be provided with about 1 to installation screw (34-1-1), the corresponding position, rear portion of right guiding board (34-3) also be provided with about 1 to installation screw (34-3-1);
Heat radiation lid (3) is stretched into respectively by its left side guiding board (34-1) and the right board (34-3) that leads in the wiring board slot (13-7) of wiring board slot (12-7) and right plate (12) of left plate (12) of base (1); After corresponding trip bolt passes the left plate (12) and right plate (13) of base (1) respectively; Screw respectively at the installation screw (34-1-1) of the left side guiding board (34-1) of heat radiation board (34) and go up on the installation screw (34-3-1) with right guiding board (34-3), thereby the lid (3) that will dispel the heat is fixed on the base (1).
5. the heat abstractor of Switching Power Supply heater members according to claim 1; It is characterized in that: the downside of the base plate (11) of base (1) is provided with 2 to 4 grooves (11-1) before and after running through according to from left to right order, and on the plate body that is positioned at groove (11-1) position of base plate (11) according to about backward order sets gradually in the past to and 10 to 20 strip louvres running through plate body at upward and downward; Heat radiation grooves (12-8) before and after running through according to 4 to 6 of from top to bottom order setting on the left surface of left plate (12); Heat radiation grooves (13-8) before and after running through according to 4 to 6 of from top to bottom order setting on the right flank of right plate (13).
6. the heat abstractor of Switching Power Supply heater members according to claim 4; It is characterized in that: heater members (5) is a switch transformer (51), and shape and the shape behind heat conduction pad (2) pressurized of the boss (32) of heat radiation lid (3) is all corresponding with the shape of the upper surface of switch transformer (51); Heat conduction pad (2) is covered by its lower surface on the upper face of the switch transformer (51) of fitting, and heat radiation lid (3) is covered on the upper surface that is fitted in heat conduction pad (2) and through securing member by the lower surface of its boss (32) and is fixed on the base (1).
7. the heat abstractor of Switching Power Supply heater members according to claim 4; It is characterized in that: heater members (5) is an inductance (52), and the shape of shape and the heat conduction pad of the boss of heat radiation lid is all corresponding with the shape of the upper surface of inductance (52); The heat conduction pad is covered on the upper face of the inductance (52) of fitting by its lower surface; The heat radiation lid is covered by the lower surface of its boss and is fitted on the upper surface of heat conduction pad, and is stretched into by its left side guiding board and right guiding board in the wiring board slot (12-7,13-7) of base (1) and through securing member and be fixed on the base (1).
8. the heat abstractor of Switching Power Supply heater members according to claim 4; It is characterized in that: heater members (5) is a power device; Power device is a switching tube or/and rectifying tube, and the shape of the boss of heat radiation lid and the shape of heat conduction pad are all corresponding with the shape of the upper surface of power device; The heat conduction pad is covered on the upper face of the power device of fitting by its lower surface; The heat radiation lid is covered by the lower surface of its boss and is fitted on the upper surface of heat conduction pad, and is stretched into by its left side guiding board and right guiding board in the wiring board slot (12-7,13-7) of base (1) and through securing member and be fixed on the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203311485U CN202282936U (en) | 2011-09-05 | 2011-09-05 | Heat radiation device of switch power supply heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203311485U CN202282936U (en) | 2011-09-05 | 2011-09-05 | Heat radiation device of switch power supply heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202282936U true CN202282936U (en) | 2012-06-20 |
Family
ID=46229083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203311485U Withdrawn - After Issue CN202282936U (en) | 2011-09-05 | 2011-09-05 | Heat radiation device of switch power supply heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202282936U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427701A (en) * | 2011-09-05 | 2012-04-25 | 常州赛莱德科技有限公司 | Heat radiation apparatus of switch power supply heating device |
| CN107424737A (en) * | 2017-07-05 | 2017-12-01 | 太仓英达锅炉设备有限公司 | A kind of stable type transformer |
| CN114158241A (en) * | 2021-12-24 | 2022-03-08 | 深圳市华阳通达精密机械有限公司 | Radiating device for internal daughter board of case |
-
2011
- 2011-09-05 CN CN2011203311485U patent/CN202282936U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427701A (en) * | 2011-09-05 | 2012-04-25 | 常州赛莱德科技有限公司 | Heat radiation apparatus of switch power supply heating device |
| CN107424737A (en) * | 2017-07-05 | 2017-12-01 | 太仓英达锅炉设备有限公司 | A kind of stable type transformer |
| CN114158241A (en) * | 2021-12-24 | 2022-03-08 | 深圳市华阳通达精密机械有限公司 | Radiating device for internal daughter board of case |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120620 Effective date of abandoning: 20140827 |
|
| RGAV | Abandon patent right to avoid regrant |