CN104994717A - Heat radiation device of power switch tube - Google Patents
Heat radiation device of power switch tube Download PDFInfo
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- CN104994717A CN104994717A CN201510480177.0A CN201510480177A CN104994717A CN 104994717 A CN104994717 A CN 104994717A CN 201510480177 A CN201510480177 A CN 201510480177A CN 104994717 A CN104994717 A CN 104994717A
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- heat
- radiator
- power switch
- cabinet
- switch pipe
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Abstract
The invention discloses a heat radiation device of a power switch tube, relating to the heat radiation device. The heat radiation device consists of a heat transferring type heat radiation device, a pressing spring, a cabinet wall body heat radiation side, a conveying pipe and a back flow pipe. The heat transferring type heat radiation device is internally provided with a heat transferring cavity; the lower part of the heat transferring cavity is provided with an input port, and the upper part of the heat transferring cavity is provided with an output port; the pressing spring consists of a pressing surface, an elastic bending and a pressing pin; the pressing surface is positioned in the middle of the pressing spring; the heat radiation side of the wall body of the cabinet is constituted by a two-layer wall; the internal space of the two-layer wall forms a cooling layer; the cooling layer on the top of the cabinet is connected to a back flow port; the lower parts of the cooling layers of the two sides of the cabinet are connected to circulation outlet ports; the conveying pipe is connected to between the input port of the heat transferring type heat radiation device and the circulation outlet port of the cooling layer of the side of the cabinet; the back flow pipe is connected to between the outlet port of the heat transferring type heat radiation device and the back flow port on the top of the cabinet. The heat radiation device of the power switch tube radiates the heat generated by the power switch tube 3 through the circulation flow of the heat transferring medium, which saves the space occupied by the heat radiator on the circuit board.
Description
Technical field
The present invention relates to a kind of radiator, be related specifically to a kind of radiator of plastic packaging power tube.
Background technology
Current, Switching Power Supply is widely used in fields such as industrial production, MSW disposal, communication, electric power, be reliable, stable, small-sized and high efficiency to the General Requirements of Switching Power Supply, high frequency makes Switching Power Supply remove Industrial Frequency Transformer, thus realizes high efficiency and miniaturization.But the power switch in Switching Power Supply operationally can generate heat, in order to enable the reliable and steady operation of Switching Power Supply, the heat that power switch pipe produces must leave in time, otherwise power switch pipe can be made to damage.General plastic packaging power switch pipe is dispelled the heat by Aluminium Radiator, plastic packaging power switch pipe passes to Aluminium Radiator heat, Aluminium Radiator is distributed peritropous for heat space by the air-cooled or natural type of cooling again, Aluminium Radiator must have enough efficiently radiates heat areas the heat that plastic packaging power switch pipe produces could to be left, therefore, conventional Aluminium Radiator volume is larger, there is the shortcoming that footprint is large and weight is large, have impact on the power density of Switching Power Supply, miniaturization is placed restrictions on.
Summary of the invention
The object of the invention is to make the radiator of power switch pipe footprint on circuit boards little, be convenient to power device layout on circuit boards, make Switching Power Supply compact conformation, power density is high, is beneficial to Switching Power Supply miniaturization.
The heat abstractor of a kind of power switch pipe of the present invention, it is characterized in that heat abstractor is made up of heat tranferring radiator 1, compression reed 5, cabinet wall body radiating surface and insulation tube connector, wherein, hot chamber 1-4 is moved in the body of heat tranferring radiator 1, the lower rearward side moving hot chamber 1-4 has input interface 1-1 to access, and the top moving hot chamber 1-4 has output interface 1-5 to pick out; Compress reed 5 to be made up of seal face 5-1, the curved 5-2 of elastic force and presser feet 5-3, seal face 5-1 is positioned at the interlude compressing reed 5, the both sides of seal face 5-1 are the curved 5-2 of elastic force arched upward, and be respectively the presser feet 5-3 of L shape, presser feet 5-3 has installation through hole outside the curved 5-2 of elastic force on both sides; Cabinet wall body radiating surface is made up of the double-deck wall body of enclosure top and the double-deck wall body of cabinet two sides, the interior space of its double-deck wall body forms cooling layer 8-2, the cooling layer of enclosure top has refluxing opening 8-1 to access, the cooling layer of enclosure top is communicated to the cooling layer of cabinet two sides, and the bottom of cabinet two side cooling layers respectively has loop exit 8-4 to pick out; Insulation tube connector comprises feed tube 10 and return duct 9, feed tube 10 is connected between the input interface 1-1 of heat tranferring radiator 1 bottom and the loop exit 8-4 of cabinet side cooling layer bottom, between the output interface 1-5 that return duct 9 is connected to heat tranferring radiator 1 top and the refluxing opening 8-1 of enclosure top.
In the present invention, the plane for installation power switching tube is had before heat tranferring radiator 1, plane before heat tranferring radiator 1 there is the compression screw for fastening power switch pipe, have the spacing recess avoiding power switch pipe pin in the front lower of heat tranferring radiator 1; The lower end of heat tranferring radiator 1 is closed entity, has installation screw 1-2 in the closed body of heat tranferring radiator 1 lower end; The input interface 1-1 of heat tranferring radiator 1 and output interface 1-5 is respectively riffled tube dental structure, and input interface 1-1 moves thermal medium input adapter 2, and output interface 1-5 moves thermal medium out splice going splice 7; The hot chamber 1-4 that moves of heat tranferring radiator 1 is one section of circular straight hole or square straight hole or polygon straight hole, in circular straight hole or square straight hole, have cooling rib; Have expansion tank 13 in heat abstractor, the lower end of expansion tank 13 is connected on the outer wall body of enclosure top, and the interior space of expansion tank 13 is communicated to cooling layer 8-2, and the upper end of expansion tank 13 has respiratory siphon 14 to pick out; Communicating pipe 12 is had between the loop exit of cabinet two side cooling layers, communicating pipe 12 has threeway 11, one end of feed tube 10 is connected on the input interface 1-1 of heat tranferring radiator 1 bottom, and the other end of feed tube 10 is connected with two loop exits of communicating pipe 12 with two side cooling layer bottoms of cabinet by threeway 11.
When the present invention applies, heat conductive silica gel is coated at power switch pipe 3 radiating surface behind, again power switch pipe 3 is attached in the plane before heat tranferring radiator 1, then compression reed 5 is withheld on power switch pipe 3, the seal face 5-1 compressing reed 5 is pressed together on power switch pipe 3, screw with hold-down bolt in the compression screw of heat tranferring radiator 1 through the installation through hole on presser feet 5-3, the plane before the radiating surface of power switch pipe 3 behind and heat tranferring radiator 1 is made to carry out close contact, during concrete enforcement, rubber cushion 6 can be set between the seal face 5-1 compressing reed 5 and power switch pipe 3, make to carry out soft contact between seal face 5-1 with power switch pipe 3, avoid the excessive damage power switch pipe 3 of pressure, then heat tranferring radiator 1 being taken power switch pipe 3 is arranged on the circuit board of Switching Power Supply, by the measure using screw to screw in the installation screw 1-2 of heat tranferring radiator 1 through circuit board, heat tranferring radiator 1 is positioned on circuit boards, then the pin of power switch pipe 3 is welded on the circuit of circuit board, moving in the cooling layer 8-2 of hot chamber 1-4 and cabinet wall body to add and move thermal medium at heat tranferring radiator 1, the described thermal medium that moves comprises conduction oil or cooling water.Moving thermal medium adopts natural circulation mode to flow between heat tranferring radiator 1 and the cooling layer 8-2 of cabinet wall body.The cooling layer 8-2 of cabinet wall body adopts natural convection air mode or fan to force the type of cooling to carry out cooling.
During above-mentioned invention work, the heat that power switch pipe 3 produces is delivered to move by the wall body of heat tranferring radiator 1 and moves in thermal medium in hot chamber 1-4, move thermal medium to circulate mode, heat to be shifted out fast from heat tranferring radiator 1, be sent in the cooling layer 8-2 of cabinet wall body, force the type of cooling or cooling water heat exchanged form that heat is left by natural convection air mode or fan again, make to move thermal medium to be cooled, the cooled thermal medium that moves turns back to moving in hot chamber 1-4 of heat tranferring radiator 1 and recycles.In its natural circulation course of work, the heat that power switch pipe 3 produces is delivered to moving of heat tranferring radiator 1 and moves in thermal medium in hot chamber 1-4, make to move thermal medium to be heated intensification, thermal medium density of moving after intensification diminishes, according to gravity circulation principle, the thermal medium that moves after being heated carries out ascending motion, flow out from the thermal medium out splice going splice 7 that moves moving 1-4 top, hot chamber, the cooling layer 8-2 being entered into cabinet wall body by return duct 9 carries out cooling, in the cooling layer 8-2 of cabinet wall body, hot moves thermal medium after cooling, density increases, just descending motion is carried out, so flow out from the loop exit 8-4 of the cooling layer bottom of cabinet two sides, supplement into moving in hot chamber 1-4 by communicating pipe 12 and feed tube 10 by the bottom of heat tranferring radiator 1, so go round and begin again, by moving circulating of thermal medium, the heat that power switch pipe 3 produces is left with heat-removing way, the radiator volume of power switch pipe 3 is reduced greatly, save the footprint of radiator on circuit board, facilitate the component placement on circuit board and configuration, make compact conformation on circuit board, thus make Switching Power Supply compact conformation, power density is high, miniaturized.The present invention adopts the cooling layer structure of cabinet wall body, its cooling layer is attached on the wall body of cabinet, area of dissipation is large, the outer wall body of cabinet is exposed in the extraneous air of machine, the efficiency of its heat radiation is high, and the cooling layer structure of cabinet wall body occupies the space of machine intimate hardly, creates conditions to the miniaturization of Switching Power Supply.
In foregoing invention, installation power switching tube is carried out without the original installing hole on power switch pipe, and use compression reed 5 mode of withholding on power switch pipe 3 to carry out installation power switching tube, because the area of exerting pressure of the screw stitching surface compressing the original installing hole on the seal face 5-1 specific power switching tube on reed 5 is much larger, therefore, with compression reed 5 come installation power switching tube exert pressure evenly and more center, make the laminating of the radiating surface of power switch pipe 3 and heat tranferring radiator 1 tightr; Compress reed 5 and there is the curved 5-2 structure of elastic force, making seal face 5-1 have elasticity when compressing power switch pipe, loosening after avoiding device to expand with heat and contract with cold, thus guaranteeing that the laminating between the radiating surface of power switch pipe 3 and heat tranferring radiator 1 is tight all the time.
The invention has the beneficial effects as follows: the heat abstractor of a kind of power switch pipe provided, by moving circulating of thermal medium, the heat that power switch pipe 3 produces is left with heat-removing way, the radiator volume of power switch pipe 3 is reduced greatly, save the footprint of radiator on circuit board, facilitate the component placement on circuit board and configuration, make board structure of circuit compact, thus make Switching Power Supply compact conformation, power density high, miniaturized.
Accompanying drawing explanation
Fig. 1 is the structure chart of the heat abstractor of a kind of power switch pipe of the present invention.
Fig. 2 is the A-A profile of Fig. 1.
In figure: 1. heat tranferring radiator, 1-1. input interface, 1-2. installation screw, 1-3. spacing recess, 1-4. moves hot chamber, 1-5. output interface, 2. move thermal medium input adapter, 3. power switch pipe, 5. compress reed, 5-1. seal face, 5-2. elastic force is curved, 5-3. presser feet, 6. rubber cushion, 7. moves thermal medium out splice going splice, 8. cabinet outer wall, 8-1. refluxing opening, 8-2. cooling layer, 8-3. cabinet inwall, 8-4. loop exit, 9. return duct, 10. feed tube, 11. threeways, 12. communicating pipes, 13. expansion tanks, 14. respiratory siphons.
Embodiment
embodiment 1in execution mode shown in Fig. 1, the heat abstractor of power switch pipe is by heat tranferring radiator 1, compress reed 5, cabinet wall body radiating surface and insulation tube connector composition, wherein, the plane for installation power switching tube is had before heat tranferring radiator 1, plane before heat tranferring radiator 1 there is the compression screw for fastening power switch pipe, the front lower of heat tranferring radiator 1 has the spacing recess avoiding power switch pipe pin, hot chamber 1-4 is moved in the body of heat tranferring radiator 1, moving hot chamber 1-4 is one section of circular straight hole or square straight hole or polygon straight hole, cooling rib is had in circular straight hole or square straight hole, the lower rearward side moving hot chamber 1-4 has input interface 1-1 to access, the top moving hot chamber 1-4 has output interface 1-5 to pick out, the input interface 1-1 of heat tranferring radiator 1 and output interface 1-5 is respectively riffled tube dental structure, input interface 1-1 moves thermal medium input adapter 2, output interface 1-5 moves thermal medium out splice going splice 7, the lower end of heat tranferring radiator 1 is closed entity, has installation screw 1-2 in the closed body of heat tranferring radiator 1 lower end, compress reed 5 to be made up of seal face 5-1, the curved 5-2 of elastic force and presser feet 5-3, seal face 5-1 is positioned at the interlude compressing reed 5, the both sides of seal face 5-1 are the curved 5-2 of elastic force arched upward, and be respectively the presser feet 5-3 of L shape, presser feet 5-3 has installation through hole outside the curved 5-2 of elastic force on both sides, cabinet wall body radiating surface is made up of the double-deck wall body of enclosure top and the double-deck wall body of cabinet two sides, the interior space of its double-deck wall body forms cooling layer 8-2, the cooling layer of enclosure top has refluxing opening 8-1 to access, the cooling layer of enclosure top is communicated to the cooling layer of cabinet two sides, and the bottom of cabinet two side cooling layers respectively has loop exit 8-4 to pick out, insulation tube connector comprises feed tube 10 and return duct 9, feed tube 10 is connected between the input interface 1-1 of heat tranferring radiator 1 bottom and the loop exit 8-4 of cabinet side cooling layer bottom, between the output interface 1-5 that return duct 9 is connected to heat tranferring radiator 1 top and the refluxing opening 8-1 of enclosure top, have expansion tank 13 in heat abstractor, the lower end of expansion tank 13 is connected on the outer wall body of enclosure top, and the interior space of expansion tank 13 is communicated to cooling layer 8-2, and the upper end of expansion tank 13 has respiratory siphon 14 to pick out.In the present embodiment, communicating pipe 12 is had between the loop exit of cabinet two side cooling layers, communicating pipe 12 has threeway 11, one end of feed tube 10 is connected on the input interface 1-1 of heat tranferring radiator 1 bottom, and the other end of feed tube 10 is connected with two loop exits of communicating pipe 12 with two side cooling layer bottoms of cabinet by threeway 11.Select described return duct 9, feed tube 10 and communicating pipe 12 half flexible pipe of polytetrafluoroethylmaterial material.
During the present embodiment application, heat conductive silica gel is coated at power switch pipe 3 radiating surface behind, again power switch pipe 3 is attached in the plane before heat tranferring radiator 1, then compression reed 5 is withheld on power switch pipe 3, the seal face 5-1 compressing reed 5 is pressed together on power switch pipe 3, screw with hold-down bolt in the compression screw of heat tranferring radiator 1 through the installation through hole on presser feet 5-3, the plane before the radiating surface of power switch pipe 3 behind and heat tranferring radiator 1 is made to carry out close contact, between the seal face 5-1 compressing reed 5 and power switch pipe 3, rubber cushion 6 is set, make to carry out soft contact between seal face 5-1 with power switch pipe 3, avoid the excessive damage power switch pipe 3 of pressure, then heat tranferring radiator 1 being taken power switch pipe 3 is arranged on the circuit board of Switching Power Supply, by the measure using screw to screw in the installation screw 1-2 of heat tranferring radiator 1 through circuit board, heat tranferring radiator 1 is positioned on circuit boards, then the pin of power switch pipe 3 is welded on the circuit of circuit board, moving in the cooling layer 8-2 of hot chamber 1-4 and cabinet wall body to add and move thermal medium at heat tranferring radiator 1, the described thermal medium that moves comprises conduction oil or cooling water.Moving thermal medium adopts natural circulation mode to flow between heat tranferring radiator 1 and the cooling layer 8-2 of cabinet wall body.The cooling layer 8-2 of cabinet wall body adopts natural convection air mode or fan to force the type of cooling to carry out cooling.
During the above embodiments work, the heat that power switch pipe 3 produces is delivered to move by the wall body of heat tranferring radiator 1 and moves in thermal medium in hot chamber 1-4, move thermal medium to circulate mode, heat to be shifted out fast from heat tranferring radiator 1, be sent in the cooling layer 8-2 of cabinet wall body, force the type of cooling or cooling water heat exchanged form that heat is left by natural convection air mode or fan again, make to move thermal medium to be cooled, the cooled thermal medium that moves turns back to moving in hot chamber 1-4 of heat tranferring radiator 1 and recycles.In its natural circulation course of work, the heat that power switch pipe 3 produces is delivered to moving of heat tranferring radiator 1 and moves in thermal medium in hot chamber 1-4, make to move thermal medium to be heated intensification, thermal medium density of moving after intensification diminishes, according to gravity circulation principle, the thermal medium that moves after being heated carries out ascending motion, flow out from the thermal medium out splice going splice 7 that moves moving 1-4 top, hot chamber, the cooling layer 8-2 being entered into cabinet wall body by return duct 9 carries out cooling, in the cooling layer 8-2 of cabinet wall body, hot moves thermal medium after cooling, density increases, just descending motion is carried out, so flow out from the loop exit 8-4 of the cooling layer bottom of cabinet two sides, supplement into moving in hot chamber 1-4 by communicating pipe 12 and feed tube 10 by the bottom of heat tranferring radiator 1, so go round and begin again, by moving circulating of thermal medium, the heat that power switch pipe 3 produces is left with heat-removing way, the radiator volume of power switch pipe 3 is reduced greatly, save the footprint of radiator on circuit board, facilitate the component placement on circuit board and configuration, make compact conformation on circuit board, thus make Switching Power Supply compact conformation, power density is high, miniaturized.The present embodiment adopts the cooling layer structure of cabinet wall body, its cooling layer is attached on the wall body of cabinet, area of dissipation is large, the outer wall body of cabinet is exposed in the extraneous air of machine, the efficiency of its heat radiation is high, and the cooling layer structure of cabinet wall body occupies the space of machine intimate hardly, creates conditions to the miniaturization of Switching Power Supply.
Claims (7)
1. the heat abstractor of a power switch pipe, it is characterized in that heat abstractor is made up of heat tranferring radiator (1), compression reed (5), cabinet wall body radiating surface and insulation tube connector, wherein, hot chamber (1-4) is moved in the body of heat tranferring radiator (1), the lower rearward side moving hot chamber (1-4) has input interface (1-1) to access, and the top moving hot chamber (1-4) has output interface (1-5) to pick out; Compress reed (5) to be made up of seal face (5-1), elastic force curved (5-2) and presser feet (5-3), seal face (5-1) is positioned at the interlude compressing reed (5), the both sides of seal face (5-1) are the elastic force curved (5-2) arched upward, elastic force curved (5-2) outside on both sides is respectively the presser feet (5-3) of L shape, and presser feet (5-3) has installation through hole; Cabinet wall body radiating surface is made up of the double-deck wall body of enclosure top and the double-deck wall body of cabinet two sides, the interior space of its double-deck wall body forms cooling layer (8-2), the cooling layer of enclosure top has refluxing opening (8-1) to access, the cooling layer of enclosure top is communicated to the cooling layer of cabinet two sides, and the bottom of cabinet two side cooling layers respectively has loop exit (8-4) to pick out; Insulation tube connector comprises feed tube (10) and return duct (9), feed tube (10) is connected between the input interface (1-1) of heat tranferring radiator (1) bottom and the loop exit (8-4) of cabinet side cooling layer bottom, and return duct (9) is connected between the output interface (1-5) on heat tranferring radiator (1) top and the refluxing opening (8-1) of enclosure top.
2. the heat abstractor of a kind of power switch pipe according to claim 1, it is characterized in that the plane had before heat tranferring radiator (1) for installation power switching tube, plane before heat tranferring radiator (1) there is the compression screw for fastening power switch pipe, have the spacing recess avoiding power switch pipe pin in the front lower of heat tranferring radiator (1).
3. the heat abstractor of a kind of power switch pipe according to claim 1, is characterized in that the lower end of heat tranferring radiator (1) is closed entity, in the closed body of heat tranferring radiator (1) lower end, has installation screw (1-2).
4. the heat abstractor of a kind of power switch pipe according to claim 1, it is characterized in that the input interface (1-1) of heat tranferring radiator (1) and output interface (1-5) are respectively riffled tube dental structure, input interface (1-1) moves thermal medium input adapter (2), output interface (1-5) moves thermal medium out splice going splice (7).
5. the heat abstractor of a kind of power switch pipe according to claim 1, is characterized in that the hot chamber (1-4) of moving of heat tranferring radiator (1) is one section of circular straight hole or square straight hole or polygon straight hole, in circular straight hole or square straight hole, has cooling rib.
6. the heat abstractor of a kind of power switch pipe according to claim 1, it is characterized in that in heat abstractor, there is expansion tank (13), the lower end of expansion tank (13) is connected on the outer wall body of enclosure top, the interior space of expansion tank (13) is communicated to cooling layer (8-2), and the upper end of expansion tank (13) has respiratory siphon (14) to pick out.
7. the heat abstractor of a kind of power switch pipe according to claim 1, it is characterized in that between the loop exit of cabinet two side cooling layers, have communicating pipe (12), communicating pipe (12) has threeway (11), one end of feed tube (10) is connected on the input interface (1-1) of heat tranferring radiator (1) bottom, and the other end of feed tube (10) is connected with two loop exits of communicating pipe (12) with two side cooling layer bottoms of cabinet by threeway (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510480177.0A CN104994717A (en) | 2015-08-08 | 2015-08-08 | Heat radiation device of power switch tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510480177.0A CN104994717A (en) | 2015-08-08 | 2015-08-08 | Heat radiation device of power switch tube |
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| Publication Number | Publication Date |
|---|---|
| CN104994717A true CN104994717A (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510480177.0A Pending CN104994717A (en) | 2015-08-08 | 2015-08-08 | Heat radiation device of power switch tube |
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| CN (1) | CN104994717A (en) |
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| CN104748379A (en) * | 2015-03-31 | 2015-07-01 | 衢州迪升工业设计有限公司 | Heat transfer type resistance box |
| CN204761948U (en) * | 2015-08-08 | 2015-11-11 | 衢州昀睿工业设计有限公司 | Heat radiator for power switch pipe |
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2015
- 2015-08-08 CN CN201510480177.0A patent/CN104994717A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5761043A (en) * | 1996-02-22 | 1998-06-02 | Cray Research, Inc. | Daughter card assembly |
| CN101123228A (en) * | 2007-05-18 | 2008-02-13 | 康舒科技股份有限公司 | Fixing location for chip and heat radiating slice |
| CN102187456A (en) * | 2009-02-09 | 2011-09-14 | 株式会社安川电机 | Semiconductor device cooling structure and power converter provided with the cooling structure |
| CN202058088U (en) * | 2011-05-31 | 2011-11-30 | 沈井连 | Water-cooled computer case |
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Application publication date: 20151021 |
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