CN107276428A - A kind of low-voltage, high-current Switching Power Supply structure - Google Patents
A kind of low-voltage, high-current Switching Power Supply structure Download PDFInfo
- Publication number
- CN107276428A CN107276428A CN201710690934.6A CN201710690934A CN107276428A CN 107276428 A CN107276428 A CN 107276428A CN 201710690934 A CN201710690934 A CN 201710690934A CN 107276428 A CN107276428 A CN 107276428A
- Authority
- CN
- China
- Prior art keywords
- transformer
- heat radiating
- radiating plate
- metallic heat
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
Abstract
The invention discloses a kind of low-voltage, high-current Switching Power Supply structure, including transformer, transformer both sides are connected with the first metallic heat radiating plate and the second metallic heat radiating plate, and insulating barrier is provided between transformer and the first metallic heat radiating plate, the second metallic heat radiating plate；The outside of first metallic heat radiating plate is provided with output rectifier part, and output rectifier part and transformer are spaced apart；The outside insulation of second metallic heat radiating plate is provided with input rectifying device and inversion device, and input rectifying device and inversion device and transformer are spaced apart；The secondary of transformer is electrically connected with output rectifier part, and output rectifier part passes through the first metallic heat radiating plate and power supply external electric；The secondary centre cap of transformer is connected with the second metallic heat radiating plate, and primary side and the inversion device of transformer are electrically connected, input rectifying device and power supply external electric.Transformer of the present invention is located between two pieces of metallic heat radiating plates, and the heat that transformer is produced is radiated by metallic heat radiating plate, good heat dissipation effect, is easy to maintenance.
Description
【Technical field】
The present invention relates to electronic component, especially a kind of low-voltage, high-current Switching Power Supply structure.
【Background technology】
State Intellectual Property Office disclosed a kind of " powerful synchronous rectification high frequency switch power dress on January 2nd, 2013
The characteristics of distribution structure ", Patent No. 201220248264.5, patent is the low-loss with circuit board is integrated and modularization,
Each several part work is independent, reduces interference of the electromagnetic field to circuit and device, but in above-mentioned patent, transformer is straight with circuit board
Connect in succession, both are constantly in high-temperature work environment, load is larger, easily burns circuit board；Meanwhile, circuit board is arranged on conduction
Between diplopore busbar, dismounting is inconvenient, it is necessary to could be pulled down after the cooling of isallobaric device during maintenance, is unfavorable for safeguarding.
The present invention is researched and proposed in view of the shortcomings of the prior art.
【The content of the invention】
Electricity is switched the technical problem to be solved in the present invention is to provide the low-voltage, high-current of a kind of good heat dissipation effect, convenient disassembly
Source structure.
In order to solve the above technical problems, the present invention provides following technical scheme：A kind of low-voltage, high-current Switching Power Supply structure,
It is characterised in that it includes transformer, the both sides heat conduction of the transformer is connected with the first metallic heat radiating plate and the second heat dissipation metal
Plate, insulating barrier is provided between the transformer and the first metallic heat radiating plate, the second metallic heat radiating plate；First heat dissipation metal
Output rectifier part is provided with the outside of plate, the output rectifier part and the transformer are spaced apart；Described second
The outside insulation set of metallic heat radiating plate has an input rectifying device and inversion device, the input rectifying device and inversion device with
The transformer is spaced apart；The secondary of the transformer is electrically connected with the output rectifier part, the output rectification
Device passes through the first metallic heat radiating plate and power supply external electrical connections；The secondary centre cap of transformer and the second metallic heat radiating plate connect
Connect, the primary side of the transformer is electrically connected with the inversion device, the input rectifying device and power supply external electrical connections.
A kind of low-voltage, high-current Switching Power Supply structure as described above, it is characterised in that the transformer includes left pedestal
With right pedestal, the left pedestal is divided into left stem and left outside ring body, and left groove is provided between left stem and left outside ring body, left
Newel is connected with left outside ring body in bottom；The right pedestal is divided into right newel and right outer ring body, right newel and right outer shroud
Right groove is provided between body, right newel is connected with right outer ring body in bottom；Left groove is oppositely arranged with right groove, and wherein
Place iron core and coil；Described output rectifier part is two groups, and the left outside ring body and right newel are connected in the secondary
Heart tap, second metallic heat radiating plate is electrically connected with secondary centre cap and as output electrode；The left stem and its
In be connected with the first conducting block and as a secondary output end of transformer between one group of output rectifier part, the right outer shroud
The second conducting block is connected between body and another group of output rectifier part and as another secondary output end of transformer.
A kind of low-voltage, high-current Switching Power Supply structure as described above, it is characterised in that first conducting block with wherein
One group of output rectifier part is connected by dismountable first conducting strip, second conducting block and another group of output rectifier part
Connected by the second conducting strip being detachably connected.
A kind of low-voltage, high-current Switching Power Supply structure as described above, it is characterised in that described transformer is multiple.
A kind of low-voltage, high-current Switching Power Supply structure as described above, it is characterised in that the length of first conducting block
Less than the length of the second conducting block.
A kind of low-voltage, high-current Switching Power Supply structure as described above, it is characterised in that the first described metallic heat radiating plate
It is the water-cooling plate provided with water pipeline in plate body with the second metallic heat radiating plate.
A kind of low-voltage, high-current Switching Power Supply structure as described above, it is characterised in that the low-voltage, high-current switch electricity
Source structure includes the cabinet being made up of Shang Gai, pedestal, and described transformer, the first metallic heat radiating plate and the second metallic heat radiating plate is set
Put in the cabinet.
A kind of low-voltage, high-current Switching Power Supply structure as described above, it is characterised in that first metallic heat radiating plate, the
Insulating part is provided between two metallic heat radiating plates and the pedestal.
A kind of low-voltage, high-current Switching Power Supply structure as described above, it is characterised in that on first metallic heat radiating plate
It is connected with first lead-out terminal, second metallic heat radiating plate and is connected with the second lead-out terminal.
Compared with prior art, a kind of low-voltage, high-current Switching Power Supply structure of the invention, has the following advantages that：
The transformer of the present invention is arranged between two pieces of metallic heat radiating plates, and output rectifier part is arranged on the first metal
The outside of heat sink is electrically connected with transformer, and input rectifying device is arranged on the outside of the second metallic heat radiating plate and transformer is electrically connected,
Dismantled again after the cooling completely of isallobaric device is not needed compared to original device, during maintenance, save the time, and transformer is produced
Raw heat is radiated by the first metallic heat radiating plate and the second metallic heat radiating plate, and the heat that transformer is produced will not be to output rectification
Device and input rectifying device produce influence, and good heat dissipation effect is convenient for changing, and are easy to maintenance.
【Brief description of the drawings】
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings, wherein：
Fig. 1 is stereogram of the invention.
Fig. 2 is exploded view of the invention.
Fig. 3 is inside top figure of the invention.
Fig. 4 is the schematic diagram that transformer of the present invention is connected with metallic heat radiating plate.
Fig. 5 is the schematic diagram that transformer of the present invention is connected with metallic heat radiating plate.
Fig. 6 is the structure chart of transformer of the present invention.
Fig. 7 is circuit theory diagrams of the invention.
Brief description of the drawings：1st, cabinet；11st, upper lid；12nd, pedestal；3rd, transformer；31st, left pedestal；311st, left outside ring body；312、
Left stem；313rd, left groove；32nd, right pedestal；321st, right outer ring body；322nd, right newel；323rd, right groove；33rd, in secondary
Heart tap；4th, input rectifying device；6th, inversion device；7th, the first metallic heat radiating plate；71st, output rectifier part；72nd, the first output
Terminal；8th, the second metallic heat radiating plate；81st, the second lead-out terminal；91st, the first conducting block；911st, the first conducting strip；92nd, second lead
Electric block；921st, the second conducting strip, 10, insulating barrier；13rd, insulating part.
【Embodiment】
Embodiments of the present invention are elaborated below in conjunction with the accompanying drawings.
As shown in Figures 1 to 7, a kind of low-voltage, high-current Switching Power Supply structure, high current and the substantial amounts of heat of generation, including
Transformer 3, the both sides heat conduction of the transformer 3 is connected with the first metallic heat radiating plate 7 and the second metallic heat radiating plate 8, the transformation
Insulating barrier 10 is provided between the metallic heat radiating plate 7 of device 3 and first, the second metallic heat radiating plate 8；Ensure that transformer and the first metal dissipate
Insulated between hot plate, the second metallic heat radiating plate non-conductive, the outside of first metallic heat radiating plate 7 is provided with output rectifier part
71, convenient dismounting output rectifier part during maintenance, it is not necessary to dismantled again after the cooling completely of isallobaric device, the output rectification
Device 71 and the transformer 3 are spaced apart, and the heat that transformer is produced does not interfere with output rectifier part 71, radiating effect
It is really good；The outside insulation set of second metallic heat radiating plate 8 has input rectifying device 4 and inversion device 6, the meeting of inversion device 6
By high voltage variable low pressure, low current becomes high current, produces substantial amounts of heat, can all be radiated by the second metallic heat radiating plate；During maintenance
Convenient dismounting input rectifying device, it is not necessary to dismantled again after the cooling completely of isallobaric device；The input rectifying device 4 and inverse
Become device 6 and the transformer 3 is spaced apart；The heat that transformer is produced does not interfere with input rectifying device 4 and inversion
Device 6, the secondary of the transformer 3 is electrically connected with the output rectifier part 71, and the output rectifier part 71 passes through first
Metallic heat radiating plate 7 and power supply external electrical connections；The secondary centre cap 33 of transformer 3 is connected with the second metallic heat radiating plate 8, described
The primary side of transformer 3 is electrically connected (see Fig. 7) with the inversion device 6, the input rectifying device 4 and power supply external electrical connections.
In the present embodiment, the second metallic heat radiating plate can cool down input rectifying device, inversion device, transformer, be connected as electrode
Output；First metallic heat radiating plate can cool down output rectifier part, transformer, be exported as the electrode after rectification.
As shown in Figures 1 to 7, the transformer 3 includes left pedestal 31 and right pedestal 32, and left 31 points of the pedestal is left
Stem 312 and left outside ring body 311, are provided with left groove 313 between left stem 312 and left outside ring body 311, left stem 312 with
Left outside ring body 311 is connected in bottom；32 points of the right pedestal is right newel 322 and right outer ring body 321, right newel 322 with
Right groove 323 is provided between right outer ring body 321, right newel 322 is connected with right outer ring body 321 in bottom；Left groove 313 and the right side
Groove 323 is oppositely arranged, and places iron core and coil wherein；Described output rectifier part 71 is two groups, the left outside ring
Body 311 and right newel 322 connect the secondary centre cap 33, second metallic heat radiating plate 8 and secondary centre cap 33
Electrically connect and be used as output electrode；First is connected between left stem 312 and one of which the output rectifier part 71 to lead
Electric block 91 and as a secondary output end of transformer 3, between the right outer ring body 321 and another group of output rectifier part 71
It is connected with the second conducting block 92 and as another secondary output end of transformer 3.
As shown in Figures 1 to 7, in the present embodiment, first conducting block 91 and one of which output rectifier part 71
Connected by dismountable first conducting strip 911, second conducting block 92 is with another group of output rectifier part 71 by removable
The second conducting strip 921 for unloading connection is connected.Ensure that transformer is electrically connected with output rectifier part, when output rectifier part goes wrong
When needing repair and replacement, it is only necessary to pull down the first conducting strip and the second conducting strip, you can output rectifier part is repaired more
Change, it is easy to maintenance.
As shown in Figures 1 to 7, in the present embodiment, the described quantity of transformer 3 is multiple, can for two, three or
Person is more, sets according to demand, and quantity is not specifically limited herein；And transformer can be arranged in parallel, it can also connect and set
Put, the mode of setting is also not especially limited herein.
As shown in Figures 1 to 7, in the present embodiment, the length of first conducting block 91 is less than the second conducting block 92
Length.Such first conducting strip and the second conducting strip can be easy to disassemble with one li of one outer setting.
As shown in Figures 1 to 7, in the present embodiment, the metallic heat radiating plate 8 of the first metallic heat radiating plate 7 and second is plate
The water-cooling plate of water pipeline is provided with body.The heat transfer that transformer work is produced is to the first metallic heat radiating plate and the second gold medal
Belong to heat sink, the heat transfer that output rectifier part is produced is radiated to the first metallic plate, cold water constantly dissipates to the first metal
Hot plate and the second metallic heat radiating plate carry out cooling, and the heat that transformer is produced is taken away by heat exchange, whole power supply dress
The cooling good heat dissipation effect put.
As shown in Figures 1 to 7, in the present embodiment, the low-voltage, high-current Switching Power Supply structure is included by upper lid 11, base
The cabinet 1 of the composition of seat 12, described transformer 3, the first metallic heat radiating plate 7 and the second metallic heat radiating plate 8 is arranged on the cabinet 1
It is interior.
As shown in Figures 1 to 7, in the present embodiment, first metallic heat radiating plate 7, the second metallic heat radiating plate 8 with it is described
Insulating part 13 is provided between pedestal 12.Ensure the contact surface insulation of the first metallic heat radiating plate, the second metallic heat radiating plate and pedestal.
As shown in Figures 1 to 7, in the present embodiment, it is connected with first lead-out terminal on first metallic heat radiating plate 7
72, the second lead-out terminal 81 is connected with second metallic heat radiating plate 8.In use, first lead-out terminal can be used as
For positive source, the second lead-out terminal can be used as power cathode；First lead-out terminal can also be used as power cathode, the second output end
Son can also depend on the circumstances as positive source, be not specifically limited herein.
To ensure that connection is reliable, the first metallic heat radiating plate crosses screw and transformer insulated connection, and screw runs through the first gold medal
Belong to heat sink；Second metallic heat radiating plate is by screw and transformer insulated connection, and screw runs through the second metallic heat radiating plate.Become
Depressor, the first metallic heat radiating plate, it is respectively equipped with corresponding fixedly connected hole, fixedly connected hole on the second metallic heat radiating plate and sets
There is insulation sleeve, the insulation sleeve is made up of ceramic material, screw is provided with insulation sleeve, by the first metallic heat radiating plate and the second metal
Heat sink is fixed on the both sides of transformer.
Claims (9)
1. a kind of low-voltage, high-current Switching Power Supply structure, it is characterised in that including transformer (3), the both sides of the transformer (3)
Heat conduction is connected with the first metallic heat radiating plate (7) and the second metallic heat radiating plate (8), the transformer (3) and the first metallic heat radiating plate
(7), it is provided with insulating barrier (10) between the second metallic heat radiating plate (8)；It is provided with the outside of first metallic heat radiating plate (7) defeated
Go out rectifying device (71), the output rectifier part (71) and the transformer (3) are spaced apart；Second metal dissipates
The outside insulation set of hot plate (8) has input rectifying device (4) and inversion device (6), the input rectifying device (4) and inversion
Device (6) and the transformer (3) are spaced apart；The secondary of the transformer (3) and the output rectifier part (71)
Electrical connection, the output rectifier part (71) passes through the first metallic heat radiating plate (7) and power supply external electrical connections；Transformer (3)
Secondary centre cap (33) is connected with the second metallic heat radiating plate (8), the primary side of the transformer (3) and the inversion device (6)
Electrical connection, the input rectifying device (4) and power supply external electrical connections.
2. a kind of low-voltage, high-current Switching Power Supply structure as claimed in claim 1, it is characterised in that transformer (3) bag
Left pedestal (31) and right pedestal (32) are included, the left pedestal (31) is divided into left stem (312) and left outside ring body (311), left
Left groove (313) is provided between stem (312) and left outside ring body (311), left stem (312) is with left outside ring body (311) bottom of at
Portion is connected；The right pedestal (32) is divided into right newel (322) and right outer ring body (321), right newel (322) and right outer ring body
(321) right groove (323) is provided between, right newel (322) is connected with right outer ring body (321) in bottom；Left groove (313) with
Right groove (323) is oppositely arranged, and places iron core and coil wherein；Described output rectifier part (71) is two groups, described
Left outside ring body (311) and right newel (322) connect the secondary centre cap (33), second metallic heat radiating plate (8) with
Secondary centre cap (33) electrically connects and is used as output electrode；The left stem (312) and one of which output rectifier part
(71) the first conducting block (91) is connected between and as a secondary output end of transformer (3), the right outer ring body (321)
The second conducting block (92) is connected between another group of output rectifier part (71) and defeated as another secondary of transformer (3)
Go out end.
3. a kind of low-voltage, high-current Switching Power Supply structure as claimed in claim 2, it is characterised in that first conducting block
(91) it is connected with one of which output rectifier part (71) by dismountable first conducting strip (911), second conducting block
(92) it is connected with another group of output rectifier part (71) by the second conducting strip (921) being detachably connected.
4. a kind of low-voltage, high-current Switching Power Supply structure as claimed in claim 2, it is characterised in that described transformer (3)
To be multiple.
5. a kind of low-voltage, high-current Switching Power Supply structure as claimed in claim 3, it is characterised in that first conducting block
(91) length is less than the length of the second conducting block (92).
6. a kind of low-voltage, high-current Switching Power Supply structure as claimed in claim 1, it is characterised in that the first described metal dissipates
Hot plate (7) is the water-cooling plate provided with water pipeline in plate body with the second metallic heat radiating plate (8).
7. a kind of low-voltage, high-current Switching Power Supply structure as claimed in claim 1, it is characterised in that the low-voltage, high-current is opened
Powered-down source structure includes the cabinet (1) that is made up of Shang Gai (11), pedestal (12), described transformer (3), the first metallic heat radiating plate
(7) it is arranged on the second metallic heat radiating plate (8) in the cabinet (1).
8. a kind of low-voltage, high-current Switching Power Supply structure as claimed in claim 7, it is characterised in that first heat dissipation metal
Insulating part (13) is provided between plate (7), the second metallic heat radiating plate (8) and the pedestal (12).
9. a kind of low-voltage, high-current Switching Power Supply structure as claimed in claim 1, it is characterised in that first heat dissipation metal
It is connected with plate (7) on first lead-out terminal (72), second metallic heat radiating plate (8) and is connected with the second lead-out terminal (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710690934.6A CN107276428B (en) | 2017-08-14 | 2017-08-14 | Low-voltage high-current switching power supply structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710690934.6A CN107276428B (en) | 2017-08-14 | 2017-08-14 | Low-voltage high-current switching power supply structure |
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| Publication Number | Publication Date |
|---|---|
| CN107276428A true CN107276428A (en) | 2017-10-20 |
| CN107276428B CN107276428B (en) | 2023-09-12 |
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| CN201710690934.6A Active CN107276428B (en) | 2017-08-14 | 2017-08-14 | Low-voltage high-current switching power supply structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022148229A1 (en) * | 2021-01-08 | 2022-07-14 | 合肥三宇电器有限责任公司 | Low-voltage high-current power supply device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104658742A (en) * | 2015-03-12 | 2015-05-27 | 中山市华星电源科技有限公司 | Transformer rectification structure |
| CN205693572U (en) * | 2016-05-31 | 2016-11-16 | 四川英杰电气股份有限公司 | A kind of power module of integrated transformer Parallel opertation |
| CN206135733U (en) * | 2016-11-10 | 2017-04-26 | 四川英杰电气股份有限公司 | High frequency direct current module power |
| CN206225160U (en) * | 2016-11-24 | 2017-06-06 | 江苏东方四通科技股份有限公司 | A kind of low-voltage, high-current synchronous rectification transformer |
| CN206402122U (en) * | 2017-01-23 | 2017-08-11 | 四川英杰电气股份有限公司 | A kind of air-cooled high frequency electric source |
| CN207039468U (en) * | 2017-08-14 | 2018-02-23 | 中山市华星电源科技有限公司 | A kind of low-voltage, high-current switching power unit |
-
2017
- 2017-08-14 CN CN201710690934.6A patent/CN107276428B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104658742A (en) * | 2015-03-12 | 2015-05-27 | 中山市华星电源科技有限公司 | Transformer rectification structure |
| CN205693572U (en) * | 2016-05-31 | 2016-11-16 | 四川英杰电气股份有限公司 | A kind of power module of integrated transformer Parallel opertation |
| CN206135733U (en) * | 2016-11-10 | 2017-04-26 | 四川英杰电气股份有限公司 | High frequency direct current module power |
| CN206225160U (en) * | 2016-11-24 | 2017-06-06 | 江苏东方四通科技股份有限公司 | A kind of low-voltage, high-current synchronous rectification transformer |
| CN206402122U (en) * | 2017-01-23 | 2017-08-11 | 四川英杰电气股份有限公司 | A kind of air-cooled high frequency electric source |
| CN207039468U (en) * | 2017-08-14 | 2018-02-23 | 中山市华星电源科技有限公司 | A kind of low-voltage, high-current switching power unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022148229A1 (en) * | 2021-01-08 | 2022-07-14 | 合肥三宇电器有限责任公司 | Low-voltage high-current power supply device |
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| CN107276428B (en) | 2023-09-12 |
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