CN102427701B - Heat radiation apparatus of switch power supply heating device - Google Patents
Heat radiation apparatus of switch power supply heating device Download PDFInfo
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- CN102427701B CN102427701B CN201110260979.2A CN201110260979A CN102427701B CN 102427701 B CN102427701 B CN 102427701B CN 201110260979 A CN201110260979 A CN 201110260979A CN 102427701 B CN102427701 B CN 102427701B
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Abstract
The invention relates to a heat radiation apparatus of a switch power supply heating device. The heat radiation apparatus comprises a pedestal, a heat conduction pad, a heat radiation cover body, a printed circuit board, and a heating device which is fixed on the printed circuit board and is electrically connected with the printed circuit board. The heating device is a switch transformer or/and an inductor or/and a power device. The pedestal is a box-shaped aluminum alloy one-body member which is formed by a left side plate, a base plate and a right side plate which are connected in order, and the left side plate and the right side plate are respectively provided with a circuit board slot at a bottom relatively and a cover body slot at an upper part relatively. The printed circuit board is inserted into the circuit board slot of the pedestal, and is fixed on the pedestal by a fastener. The heat radiation cover body is an aluminium alloy or copper alloy metal plate body, and is provided with a projection unit which is corresponding to a shape of an upper part surface of the heating device. The heat conduction pad covers the upper part surface of the heating device with a lower surface of the heat conduction pad, the heat radiation cover body covers an upper surface of the heat conduction pad with a lower surface of the projection position, and edge positions of left and right sides of the heat radiation cover body extend into the cover body slot of the pedestal.
Description
Technical field
The present invention relates to a kind of case member of Switching Power Supply, relate to especially a kind of heat abstractor of Switching Power Supply heater members.
Background technology
High speed development along with power electronic technology, power electronic equipment and people's work, the relation of life are day by day close, and electronic equipment all be unable to do without reliable power supply, the Switching Power Supply that entered the computer power supply round Realization eighties, the taken the lead in power supply of computer is regenerated, enter nineties Switching Power Supply and in succession enter various electronics, electric equipment field, stored-program control exchange, communication, electron detection device power supply, control appliance power supply etc. have all been used Switching Power Supply widely, have more promoted developing rapidly of switch power technology.
Conventionally Switching Power Supply comprises longitudinal casing and a fixing printed substrate in the enclosure of an aluminum alloy material or steel, is fixed with the various electronic devices and components such as switch transformer, switching tube, rectifying tube, magnet ring, resistance on printed substrate.The heat dispersion of qualified Switching Power Supply requires, under the constant temperature oven environment of 50 ℃, on the printed substrate of Switching Power Supply, the temperature that works long hours of heating electronic component is no more than 120 ℃, otherwise electronic devices and components can damage, so be also provided with the heat abstractors such as fin or fan between the shell of Switching Power Supply and printed substrate.And if its power of Switching Power Supply of selling on the market is at present more than 200 watts, being necessary for Switching Power Supply arranges fan and obtains good radiating effect, and radiator fan is set between shell and printed substrate, greatly increased undoubtedly on the one hand manufacturing cost, increased the maintenance maintenance expense of later stage fan damage etc. simultaneously, and the mobility of Switching Power Supply, resistance to falling property and shock resistance have been reduced, and be the shortest the useful life of all parts fans of Switching Power Supply, so the design of fan has obviously affected the useful life of Switching Power Supply; Arrange on the other hand after radiator fan, need to consider the design in air channel in Switching Power Supply, affected the design of printed substrate, increased design cost; And Switching Power Supply arranges after radiator fan, greatly increased undoubtedly the circulation of air speed in Switching Power Supply, obviously speeded the dust accumulation in 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 current Switching Power Supply is: between power device and the side plate of base, be lined with a good silica gel piece of heat conductivility, and then by a radiating fin, be connected to the side of 2 to 3 power devices, and radiating fin is fixed on the side plate of base by securing member, and power device is between silica gel piece and radiating fin, the heat producing during power device work dispels the heat by radiating fin on the one hand, by silica gel piece, conduct on base and dispel the heat on the other hand, thereby but if power device is around provided with other electronic devices and components while causing power device the space of radiating fin not to be set around, the heat radiation of power device has just become problem.
Summary of the invention
The technical problem to be solved in the present invention is to be the Switching Power Supply of power in the scope of 200 to 500 watts, and the heat abstractor of the Switching Power Supply heater members that a kind of radiating effect without radiator fan is better, manufacturing cost is lower and useful life is longer is provided.
The technical scheme that realizes the object of the invention is to provide 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.Base is aluminium alloy or the copper alloy section bar integral piece of the square frame-shaped that forms of being connected successively by left plate, base plate and right plate, and left plate with on right plate, be provided with the relative wiring board slot that is positioned at 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 base by securing member.Heater members is fixed and is connected electrically on printed wiring board.
The heat abstractor of above-mentioned Switching Power Supply heater members also comprises heat-conducting pad and heat radiation lid.Base also its left plate with on right plate, be provided with relative superposed lid slot.
Heat-conducting pad is the heat conduction pad of high-temperature insulation flexibility.Heat radiation lid is the tabular integral piece of aluminium alloy or copper alloy, and heat radiation lid is provided with the boss corresponding with the shape of the upper face of heater members.Heat-conducting pad is covered on the upper face of the heater members of fitting by its lower surface.Heat radiation lid is combined on the upper surface of heat-conducting pad by the lower surface covering plaster of its boss, and in the lid slot that stretches into base by the edge of its left and right sides, thereby heat-conducting pad is pressed on the upper face of heater members, and make the shape of heat-conducting pad and the upper surface of heater members corresponding.
Heat-conducting pad is silicone rubber pad, has the characteristic of 200 ℃ of above high temperature of tolerance.Heat-conducting pad thickness be 1 to 3mm.
The heat abstractor of above-mentioned Switching Power Supply heater members also comprises locking post.Locking post is the solid cylinder of being made by aluminium alloy or Cu alloy material, and along left and right to being horizontally disposed with, its left end head and right-hand member head are equipped with screw.The left and right of locking post is to the left plate in base equal in length and the distance between right plate, and locking post is between the left plate and right plate of base, by corresponding trip bolt, pass respectively after the left plate and right plate of base, screw respectively on the screw of left and right end of locking post, and locking post is fixed on base.
Heat radiation lid also comprises and stops board, connects board and heat radiation board.Heat radiation board, connect board, boss and stop that board is connected successively according to order from front to back.
Heat radiation board comprises left guiding board, central board and right guiding board.On the upper side of central authorities' board, according to order from left to right, be provided with 10 to 20 louvres.Left guiding board is connected to the left end of central board from below, right guiding board is connected to the right-hand member of central board from below, and left guiding board and right guiding board are and are symmetrical set.The shape of left 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 guiding board be provided with 1 left and right to installation screw, the corresponding position, rear portion of right guiding board be also provided with 1 left and right to installation screw.
Heat radiation lid is stretched into respectively in the wiring board slot of left plate and the wiring board slot of right plate of base by its left guiding board and right guide plate portion, corresponding trip bolt is respectively through after the left plate and right plate of base, screw respectively on the installation screw of left guiding board of heat radiation board and on the installation screw of right guiding board, thereby heat radiation lid is fixed on base.
The downside of the base plate of base is provided with 2 to 4 grooves before and after running through according to order from left to right, and on the plate body that is positioned at groove position of base plate according to order from front to back set gradually left and right 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 order setting from top to bottom on the left surface of left plate.Heat radiation grooves before and after running through according to 4 to 6 of order setting from top to bottom on the right flank of right plate.
Heater members is switch transformer, and the shape of boss of heat radiation lid and the shape after heat-conducting pad pressurized are all corresponding with the shape of the upper surface of switch transformer.Heat-conducting pad is covered by its lower surface on the upper face of switch transformer of laminating, and heat radiation lid is combined on the upper surface of heat-conducting pad (2) and is fixed on base by securing member by the lower surface covering plaster of its boss.
Heater members is inductance, and the heat radiation shape of boss of lid and the shape of heat-conducting pad are all corresponding with the shape of the upper surface of inductance.Heat-conducting pad is covered on the upper face of the inductance of fitting by its lower surface, heat radiation lid is combined on the upper surface of heat-conducting pad by the lower surface covering plaster of its boss, and in the wiring board slot that stretches into base by its left guiding board and right guiding board and be fixed on base by securing member.
Heater members is power device, and power device is switching tube or/and rectifying tube, and the shape of boss of heat radiation lid and the shape of heat-conducting pad are all corresponding with the shape of the upper surface of power device.Heat-conducting pad is covered on the upper face of the power device of fitting by its lower surface, heat radiation lid is combined on the upper surface of heat-conducting pad by the lower surface covering plaster of its boss, and in the wiring board slot that stretches into base by its left guiding board and right guiding board and be fixed on base by securing member.
The present invention has positive effect: the construction for heat radiating device of (1) Switching Power Supply heater members of the present invention is ingenious, apply the Switching Power Supply of this heat abstractor under the constant temperature oven environment of 50 ℃, the temperature that works long hours that comprises the heater members of switch transformer on the printed substrate of Switching Power Supply can be over 120 ℃, basicly stable at 110 ℃, radiating efficiency is better, and the Switching Power Supply that can be 200 to 500 watts of power without the design of fan provides stable operational environment.
(2) the heat abstractor manufacturing cost of Switching Power Supply heater members of the present invention is lower, cancels the design of fan and has greatly saved all kinds of production costs.
(3) heat abstractor of heater members of the present invention is owing to adopting the design of fan-free, and the useful life of Switching Power Supply that makes to apply this heat abstractor is longer, and outward appearance is also more attractive in appearance.
(4) apply mobility, resistance to falling property and the shock resistance of Switching Power Supply of heat abstractor of heater members of the present invention better.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the structural representation when observing from the A of Fig. 1;
Fig. 3 is the structural representation of the base in Fig. 1;
Fig. 4 is the structural representation of the heat radiation lid in Fig. 2;
Fig. 5 is the left view of the heat radiation lid in Fig. 4;
Fig. 6 is the B-B face cutaway view of Fig. 2.
Mark in above-mentioned accompanying drawing is as follows:
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-conducting pad 2,
Heat radiation lid 3, stops board 31, and boss 32 connects board 33, heat radiation board 34, and left guiding board 34-1, installation screw 34-1-1, central board 34-2, louvre 34-2-1, right guiding board 34-3, installation screw 34-3-1,
Printed wiring board 4, heater members 5, switch transformer 51, inductance 52, power device 53,
Locking post 6,
Silica gel piece 71, radiating fin 72.
Embodiment
In the specific embodiment of the present invention, the description in orientation is carried out according to the orientation shown in Fig. 1.
(embodiment 1)
See Fig. 2 and Fig. 6, the heat abstractor of the Switching Power Supply heater members of the present embodiment comprises base 1, heat-conducting 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 be the section bar to being made through extrusion process by aluminium alloy or Cu alloy material cut carry out again corresponding after resulting aluminium alloy or copper alloy section bar integral piece after processing, what the present embodiment adopted is that aluminum alloy materials is made, the model of aluminium alloy extrusions is 6063-T5, and by Jiangyin, Wang Fa Science and Technology Ltd. manufactures.The cross sectional shape of base 1 is the square frame-shaped of opening upwards substantially; 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 to the left end of base plate 11 from top; Right plate 13 vertical settings, are connected to the right-hand member of base plate 11 from top.
Right plate 13 comprises plate body principal part 13-10; The first protuberance 13-1, cross section that the left side of plate body principal part 13-10 is provided with before and after connecting successively according to order are from the top down 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.The thickness of installation portion 13-3 (left and right to distance) is 0.6 to 1 centimetre, installation portion 13-3 after add the left and right that has some a man-hour to through hole and for 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 surrounding 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 surround 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; On the right flank of the plate body principal part 13-10 of right plate 13, according to order from top to bottom, be provided with 5 heat radiation groove 13-8 before and after running through, the plate body principal part 13-10 of right plate 13 on the plate body between stop part 13-2 and installation portion 13-3 apart from add after front end 3cm is in have man-hour a left and right to the first connecting hole, the plate body principal part 13-10 of right plate 13 on the plate body between stop part 13-2 and installation portion 13-3 apart from add after rear end 3cm is in have man-hour a left and right to the 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 installation portion 13-3 each after add have man-hour a left and right to installation screw, 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 second protuberance 13-4 each after add have man-hour a left and right to installation screw, these 4 installation screws are fixed for the installation of whole Switching Power Supply.Left plate 12 is corresponding with the structure of right plate 13, and both are symmetrical along the vertical guide of the center line of the base plate 11 through base 1.Left plate 12 also comprises plate body principal part 12-10 and is successively set on from top to bottom 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; Left plate 12 also comprises 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 order setting from top to bottom on the left surface that is positioned at accordingly plate body principal part 12-10; After the relevant position of the plate body principal part 12-10 of left plate 12 is in, adds and have the first connecting hole, the 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, for improving 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 order from front to back set gradually left and right to and 15 strip louvres running through plate body at upward and downward.Base plate 11 apart from the plate body of its rear end 1cm after add the installing hole that has some man-hour, this installing hole is fixed for the installation 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 is through the positioning support hole of base plate 11, and riveted joint is fixed on base plate 11, and the cylinder of the upper end of positioning support 11-2 protrudes upward base plate 11.
See Fig. 5, heat-conducting pad 2 is heat conduction pads that a kind of insulation, Heat Conduction Material high temperature resistant, better softness are made, and has the characteristic of 200 ℃ of above high temperature of tolerance, and what the present embodiment adopted is silicagel pad, and capacity of heat transmission is excellent; The size of heat-conducting pad 2 is corresponding with the upper surface of heater members 5, and in the present embodiment, the size of heat-conducting pad 2 is corresponding with the upper surface of switch transformer 51, and its left and right is 25mm to length, 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 made by aluminium alloy or Cu alloy material, the heat radiation lid 3 of the present embodiment be the section bar that made through extrusion process by aluminum alloy materials cut carry out again corresponding after resulting aluminium alloy extrusions integral piece after processing, the model of aluminium section bar is 6063-T5, and by Jiangyin, Wang Fa Science and Technology Ltd. manufactures.The front and back of heat radiation lid 3 are 90mm to length, heat radiation lid 3 by stopping board 31, be connected to stop board 31 rear ends boss 32, be connected to boss 32 rear ends connection board 33 be connected to 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, left and right to length corresponding to length with the left and right of switch transformer 51; The cross sectional shape of boss 32 is minor arc shape, the large 2mm of radius unshakable in one's determination of its radius ratio switch transformer 51, and sagittal length is corresponding to length with the front and back unshakable in one's determination of switch transformer 51.The left and right that connects board 33 is corresponding to the distance between the plate body principal part of length and the left side plate 12,13 of base 1.Heat radiation board 34 comprises left 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 fill 90 ° L shaped, and its sagittal length is 40mm, and the louvre 34-2-1 that is provided with 14 strips according to order from left to right on the upper side of central board 34-2 is to obtain good radiating effect.Left guiding board 34-1 is connected to the left end of central board 34-2 from below, right guiding board 34-3 is connected to the right-hand member of central board 34-2 from below, and left guiding board 34-1 and right guiding board 34-3 are and are symmetrical set.The shape of left 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 guiding board 34-1 be provided with 1 left and right to installation screw 34-1-1, the corresponding position, rear portion of right guiding board 34-3 be also provided with 1 left and right to installation screw 34-3-1.
See Fig. 2, the solid cylinder that locking post 6 is made by aluminium alloy or Cu alloy material, the locking post 6 of the present embodiment is to be made by aluminum alloy materials, its left and right is to the distance between the left plate 12 of base 1 and the plate body principal part of right plate 13 equal in length, and diameter is less than the stop part 13-2 of plate body principal part 13-10 of right plate 13 of base 1 and the distance between installation portion 13-3.The two ends, left and right of locking post 6 are equipped with 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 printed wiring board 4, switch transformer 51 is fixed and is connected electrically on printed wiring board 4, and is positioned at the front portion of printed wiring board 4.Switch transformer 51
In the wiring board slot 12-7 of the left plate 12 of printed wiring board 4 along front and back to while inserted base 1 and the wiring board slot 13-7 of right plate 13, move to relevant position, thereby then by 1 screw, pass in the positioning support 11-2 on the base plate 11 that screws in base 1 on printed wiring board 4 after corresponding first connecting hole printed wiring board 4 is fixed on base 1 from the top down.Then heat-conducting pad 2 is combined on the upper face of switch transformer 51 by its lower surface covering plaster, again by the position of boss 32 and the position alignment unshakable in one's determination of switch transformer 51 of heat radiation lid 3, then the left guiding board 34-1 of heat radiation board 34 of heat radiation lid 3 is inserted in the lid slot 12-6 of left plate 12 of base 1, the lid 3 that makes to dispel the heat is combined on the upper surface of heat-conducting pad 2 by the lower surface covering plaster of its boss 32, the toughness of recycling base 1 is broken the left side plate 12 of base 1 slightly into two with one's hands, 13, thereby the right guiding board 34-3 of heat radiation board 34 of heat radiation lid 3 is inserted in the lid slot 13-6 of right plate 13 of base 1, the position of adjusting heat radiation lid 3 makes the installation screw 34-1-1 on left guiding board 34-1 aim at first connecting hole on the plate body between stop part 12-2 and installation portion 12-3 of plate body principal part 12-10 of the left plate 12 of base 1, the first connecting hole on the plate body between stop part 13-2 and installation portion 13-3 of the plate body principal part 13-10 of the right plate 13 of the installation screw 34-3-1 aligning base 1 on right guiding board 34-3, then by 1 screw, after the first connecting hole through the plate body principal part 12-10 of the left plate 12 of base 1, screw in the installation screw 34-1-1 on the left guiding board 34-1 of heat radiation lid 3 from left to right, by 1 screw, after the first connecting hole through the plate body principal part 13-10 of the right plate 13 of base 1, screw in the installation screw 34-3-1 on the right guiding board 34-3 of heat radiation lid 3 from right to left again, thereby heat radiation lid 3 is fixed on base 1, and the rear portion that stops board 31 of heat radiation lid 3, boss 32 be connected the front portion of board 33 and heat-conducting pad 2 close contacts and the thickness of heat-conducting pad 2 compressed to 1mm, shape after heat-conducting pad 2 pressurizeds is corresponding with the shape of the upper surface of switch transformer 51.By 1 screw, screw after the second connecting hole through the plate body principal part 12-10 of the left plate 12 of base 1 from left to right in the installation screw of the left end of locking post 6 again, by another 1 screw, screw after the second connecting hole through the plate body principal part 13-10 of the right plate 13 of base 1 from right to left in the installation screw of the right-hand member of locking post 6, thereby by locking between the left side plate of base 1 12,13, the mobility of whole heat abstractor, resistance to falling property and shock resistance have been improved.
When the heat abstractor of the Switching Power Supply heater members of the present embodiment is used, the heat producing while working as the switch transformer 51 of heater members 5 conducts on heat radiation lid 3 by heat-conducting pad 2, by heat radiation lid 3, heat is conducted to whole base 1 again, thereby without fan, can make temperature can be stabilized in 110 ℃ when switch transformer 51 is worked long hours.
(embodiment 2)
The heat abstractor of the Switching Power Supply heater members of the present embodiment is substantially the same manner as Example 1, and its difference is: on printed wiring board 4, be welded with the heater members 5 that comprises inductance 52.Inductance 52 is filter inductance.The shape of boss of heat radiation lid and the shape of heat-conducting pad are all according to the shape respective production of the upper surface of inductance 52.Heat-conducting pad is covered on the upper face of the inductance 52 of fitting by its lower surface, heat radiation lid is combined on the upper surface of heat-conducting pad by the lower surface covering plaster of its boss, and in the wiring board slot 12-7, the 13-7 that stretch into base 1 by its left guiding board and right guiding board and be fixed on base 1 by securing member.
The heat producing during inductance 52 work conducts on heat radiation lid by heat-conducting pad, then by heat radiation lid, heat is conducted to whole base 1, thereby without fan, can make temperature can be stabilized in 110 ℃ while making inductance 52 long-term work.
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-conducting pad is set simultaneously, the shape of above-mentioned second boss and second heat-conducting pad is all according to the shape respective production of the upper surface of inductance 52, the heat producing during inductance 52 work conducts on heat radiation lid 3 by second heat-conducting pad, by heat radiation lid 3, heat is conducted to whole base 1 again, the heat producing during switch transformer 51 work conducts on heat radiation lid 3 by heat-conducting pad 2, by heat radiation lid 3, heat is conducted to whole base 1 again, thereby without fan, can make temperature can be stabilized in 110 ℃ while making inductance 52 and switch transformer 51 long-term work.
(embodiment 3)
The heat abstractor of the Switching Power Supply heater members of the present embodiment is substantially the same manner as Example 1, and its difference is: the shape of boss of heat radiation lid and the shape of heat-conducting pad are all according to the shape respective production of the upper surface of the heater members power device 53 of Switching Power Supply.
On printed wiring board 4, be welded with the heater members 5 that comprises power device 53.Power device 53 comprises switching tube and rectifying tube.The shape of boss 32 of heat radiation lid 3 and the shape of heat-conducting pad 2 are 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 current Switching Power Supply is: between the left plate 12 of power device 53 and base 1 or right plate 13, be lined with a good silica gel piece 71 of heat conductivility, and then by a radiating fin 72, be connected to the side of 2 to 3 power devices 53, and by securing member, radiating fin 72 is fixed on to a left side for base 1, right plate 12, on 13 installation portion 13-3, and power device 53 is between silica gel piece 71 and radiating fin 72, the heat producing during power device 53 work dispels the heat by radiating fin 72 on the one hand, by silica gel piece 71, conduct to heat radiation on base 1 on the other hand.
Thereby but if power device 53 is provided with other electronic devices and components around causes power device 53 that the space of radiating fin 72 is not set around, the heat abstractor of Switching Power Supply heater members that so can be by the present embodiment dispels the heat, the circular power device 53 in Fig. 2 for example, heat-conducting pad is covered on the upper face of the power device 53 of fitting by its lower surface, heat radiation lid is combined on the upper surface of heat-conducting pad by the lower surface covering plaster of its boss, and by its left guiding board and right guiding board, stretched into the wiring board slot 12-7 of base 1, in 13-7 and by securing member, be fixed on base 1.
The heat producing during power device 53 work conducts on heat radiation lid by heat-conducting pad, then by heat radiation lid, heat is conducted to whole base 1, thereby without fan, can make temperature can be stabilized in 110 ℃ when power device 53 is worked long hours.
(embodiment 4)
The heat abstractor of the Switching Power Supply heater members of the present embodiment is substantially the same manner as Example 3, its difference is: printed wiring board 4 is provided with device connecting hole, the position of the device connecting hole on the corresponding printed wiring board 4 of base plate 11 of base 1 is provided with device installation screw, after power device is welded on printed wiring board 4, a screw is passed to the installing hole on power device successively, thereby after the device connecting hole on printed wiring board 4, screw in the device installation screw of the base plate 11 of base 1 power device fixedly on printed wiring board 4, and the metal fin that power device carries is towards top, the shape of boss of heat radiation lid and the shape of heat-conducting pad are all according to the shape respective production of the upper surface of power device.
On the upper face of heat-conducting pad by the metal fin of the power device of its lower surface covering laminating, heat radiation lid is combined on the upper surface of heat-conducting pad by the lower surface covering plaster of its boss, and in the wiring board slot 12-7, the 13-7 that stretch into base 1 by its left guiding board and right guiding board and be fixed on base 1 by securing member.
The heat producing during power device work conducts on heat radiation lid by heat-conducting pad, then by heat radiation lid, heat is conducted to whole base 1, thereby without fan, can make temperature can be stabilized in 110 ℃ when power device is worked long hours.
Claims (7)
1. a heat abstractor for 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) be connected successively aluminium alloy or the copper alloy section bar integral piece of the square frame-shaped that forms, and left plate (12) with on right plate (13), be provided with the relative wiring board slot that is positioned at bottom (12-7,13-7); The wiring board slot (12-7,13-7) that printed wiring board (4) is plugged on base (1) by the left and right sides of its plate body is upper, and is fixed on base (1) by securing member; Heater members (5) is fixed and is connected electrically on printed wiring board (4); It is characterized in that:
Also comprise heat-conducting pad (2) and heat radiation lid (3); Base (1) also its left plate (12) with on right plate (13), be provided with relative superposed lid slot (12-6,13-6);
Heat-conducting 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 the lid (3) that dispels the heat is provided with the boss (32) corresponding with the shape of the upper face of heater members (5); Heat-conducting pad (2) is covered on the upper face of the heater members (5) of fitting by its lower surface; Heat radiation lid (3) is combined on the upper surface of heat-conducting pad (2) by the lower surface covering plaster of its boss (32), and in the lid slot (12-6,13-6) that stretches into base (1) by the edge (34-1,34-3) of its left and right sides, thereby heat-conducting pad (2) is pressed on the upper face of heater members (5), and makes the shape of heat-conducting pad (2) corresponding with the upper surface of heater members (5);
Heat radiation lid (3) also comprises and stops board (31), connects board (33) and the board (34) that dispels the heat; Heat radiation board (34), connect board (33), boss (32) and stop that board (31) is connected successively according to order from front to back;
Heat radiation board (34) comprises left guiding board (34-1), central board (34-2) and right guiding board (34-3); On the upper side of central authorities' boards (34-2), according to order from left to right, be provided with 10 to 20 louvres (34-2-1); Left guiding board (34-1) is connected to the left end of central board (34-2) from below, right guiding board (34-3) is connected to the right-hand member of central board (34-2) from below, and left guiding board (34-1) and right guiding board (34-3) are and are symmetrical set; The shape of left 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 guiding board (34-1) be provided with 1 left and right to installation screw (34-1-1), the corresponding position, rear portion of right guiding board (34-3) be also provided with 1 left and right to installation screw (34-3-1);
In the wiring board slot (12-7) of left plate (12) and the wiring board slot (13-7) of right plate (12) that heat radiation lid (3) stretches into respectively base (1) by its left guiding board (34-1) and right guiding board (34-3), corresponding trip bolt is respectively through after the left plate (12) and right plate (13) of base (1), screw respectively on the installation screw (34-3-1) of the upper and right guiding board (34-3) of installation screw (34-1-1) at the left guiding board (34-1) of heat radiation board (34), thereby the lid (3) that will dispel the heat is fixed on base (1).
2. the heat abstractor of Switching Power Supply heater members according to claim 1, is characterized in that: heat-conducting pad (2) is silicone rubber pad, has the characteristic of 200 ℃ of above high temperature of tolerance; Heat-conducting 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 made by aluminium alloy or Cu alloy material, and along left and right to being horizontally disposed with, its left end head and right-hand member head are equipped with screw; The left and right of locking post (6) is to the distance between the left plate in base (1) equal in length (12) and right plate (13), and locking post (6) is positioned between the left plate (12) and right plate (13) of base (1), by corresponding trip bolt, pass respectively after the left plate (12) and right plate (13) of base (1), screw respectively on the screw of left and right end of locking post (6), and will lock post (6), be fixed on base (1).
4. 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 order from left to right, and on the plate body that is positioned at groove (11-1) position of base plate (11) according to order from front to back set gradually left and right 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 order setting from top to bottom on the left surface of left plate (12); Heat radiation grooves (13-8) before and after running through according to 4 to 6 of order setting from top to bottom on the right flank of right plate (13).
5. the heat abstractor of Switching Power Supply heater members according to claim 1, it is characterized in that: heater members (5) is switch transformer (51), the shape of boss (32) of heat radiation lid (3) and the shape after heat-conducting pad (2) pressurized are all corresponding with the shape of the upper surface of switch transformer (51); Heat-conducting pad (2) is covered by its lower surface on the upper face of switch transformer (51) of laminating, and heat radiation lid (3) is combined on the upper surface of heat-conducting pad (2) and is fixed on base (1) by securing member by the lower surface covering plaster of its boss (32).
6. the heat abstractor of Switching Power Supply heater members according to claim 1, it is characterized in that: heater members (5) is inductance (52), the heat radiation shape of boss of lid and the shape of heat-conducting pad are all corresponding with the shape of the upper surface of inductance (52); Heat-conducting pad is covered on the upper face of the inductance (52) of fitting by its lower surface, heat radiation lid is combined on the upper surface of heat-conducting pad by the lower surface covering plaster of its boss, and in the wiring board slot (12-7,13-7) that stretches into base (1) by its left guiding board and right guiding board and be fixed on base (1) by securing member.
7. the heat abstractor of Switching Power Supply heater members according to claim 1, it is characterized in that: heater members (5) is power device, power device is switching tube or/and rectifying tube, and the shape of boss of heat radiation lid and the shape of heat-conducting pad are all corresponding with the shape of the upper surface of power device; Heat-conducting pad is covered on the upper face of the power device of fitting by its lower surface, heat radiation lid is combined on the upper surface of heat-conducting pad by the lower surface covering plaster of its boss, and in the wiring board slot (12-7,13-7) that stretches into base (1) by its left guiding board and right guiding board and be fixed on base (1) by securing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110260979.2A CN102427701B (en) | 2011-09-05 | 2011-09-05 | Heat radiation apparatus of switch power supply heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110260979.2A CN102427701B (en) | 2011-09-05 | 2011-09-05 | Heat radiation apparatus of switch power supply heating device |
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| CN102427701A CN102427701A (en) | 2012-04-25 |
| CN102427701B true CN102427701B (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110260979.2A Expired - Fee Related CN102427701B (en) | 2011-09-05 | 2011-09-05 | Heat radiation apparatus of switch power supply heating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102917571B (en) * | 2012-09-28 | 2016-06-22 | 深圳麦格米特电气股份有限公司 | A kind of power device heat dissipation structure |
| CN104093281B (en) * | 2014-07-03 | 2017-02-15 | 浙江长兴家宝电子有限公司 | Fixing device for circuit board to be welded conveniently |
| CN105780328A (en) * | 2016-05-21 | 2016-07-20 | 浙江琦星电子有限公司 | Integrated sewing machine electric control device |
| CN108692002A (en) * | 2017-04-03 | 2018-10-23 | 余姚市宏波电工电器有限公司 | A kind of in-mould injection gear inching switch |
| JP6875514B2 (en) * | 2017-05-26 | 2021-05-26 | 三菱電機株式会社 | Semiconductor device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101030090A (en) * | 2006-10-25 | 2007-09-05 | 张文 | Power supply of computer |
| CN101840250B (en) * | 2009-03-19 | 2013-03-20 | 喻小兵 | Scheme for sealed fanless computer mainframe with water tank to realize mute intelligent heat dissipation |
| CN202282936U (en) * | 2011-09-05 | 2012-06-20 | 常州赛莱德科技有限公司 | Heat radiation device of switch power supply heating device |
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Inventor after: Bao Zewei Inventor before: Bao Lihua Inventor before: Sun Lei |
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Effective date of registration: 20160407 Address after: 213000 Jiangsu city of Changzhou province Jintan Chuncao Tang No. 1 -82 Patentee after: Changzhou Ding Ding Electronic Technology Co., Ltd. Address before: 213022, Changzhou, Jiangsu Province, North Minjiang Road, No. 29, long hair Science Park, South Building, East five floor Patentee before: Sailaide Science and Technology Co., Ltd., Changzhou |
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