CN204304801U - Be applicable to water-cooled laminating bus bar and the synchronous rectificating device of big current transmission - Google Patents
Be applicable to water-cooled laminating bus bar and the synchronous rectificating device of big current transmission Download PDFInfo
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- CN204304801U CN204304801U CN201420689821.6U CN201420689821U CN204304801U CN 204304801 U CN204304801 U CN 204304801U CN 201420689821 U CN201420689821 U CN 201420689821U CN 204304801 U CN204304801 U CN 204304801U
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Abstract
The utility model discloses a kind of the water-cooled laminating bus bar and the synchronous rectificating device that are applicable to big current transmission, this bus bar comprises two pieces of electrically-conductive backing plates and one piece of circuit board; The tow sides of pcb board are respectively equipped with front copper clad layers and reverse side copper clad layers, front copper clad layers and reverse side copper clad layers mutually insulated and be all positioned at and cover copper region, pcb board is provided with the pad group being positioned at welding region, this pad group comprises the first polarity pad be electrically connected with front copper clad layers and the second polarity pad be electrically connected with reverse side copper clad layers, all electrically-conductive backing plates and the alternately laminated setting of circuit board, two pieces of electrically-conductive backing plates respectively with the front copper clad layers of circuit board and reverse side copper clad layers close contact to realize being electrically connected; Electrically-conductive backing plate has cooling fluid opening, and the entery and delivery port of this cooling fluid opening is arranged on the noncontact face of electrically-conductive backing plate and circuit board.The utility model has compact conformation, and radiating efficiency is high, and current carrying capacity is strong, low inductance, Low ESR, the advantage that reliability is strong.
Description
Technical field
The utility model relates to a kind of water-cooled laminating bus bar being applicable to big current transmission, and the utility model also relates to a kind of synchronous rectificating device of this bus bar of application.
Background technology
In power electronics industry, low-voltage, big current become main trend, and in the output situation of low-voltage, big current, large pressure drop directly can cause the increase of rectifier loss, and power-efficient also can be made to reduce.Synchronous rectification adopts the extremely low special power device metal-oxide-semiconductor of on state resistance to replace rectifier diode, greatly reduce the rectifier loss of switched power output, thus raising power-efficient, reduce power supply heating itself, meet the needs of low-voltage, high-current switch high efficiency of power supply and small size.
Laminating bus bar, for completing the electrical connection of power circuit and device in power electronic product, has the following advantages: low inductance coefficent, Low ESR, increases distributed capacitance, realizes high current carrying capacity etc. with lower pressure drop.So far, the application of laminating bus bar in synchronous rectified power industry is had no.
Laminating bus bar is that a kind of multi-layer compound structure connects row, existing laminating bus bar is all self cooling mode, under the synchronous rectification situation of big current, all can not meet the high request of big current to radiating efficiency from cold-peace is air-cooled, on the basis of laminating bus bar, therefore increase the scheme that this type of cooling of water-cooled becomes in the urgent need to address.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of and be applicable to the water-cooled laminating bus bar of big current transmission and apply the synchronous rectificating device of this water-cooled laminating bus bar.
Solve the problems of the technologies described above, the technical scheme that the utility model adopts is as follows:
Be applicable to a water-cooled laminating bus bar for big current transmission, it is characterized in that: described water-cooled laminating bus bar comprises two pieces of electrically-conductive backing plates and one piece of circuit board, described circuit board is divide to have the pcb board covering copper region and welding region, the tow sides of described pcb board are respectively equipped with front copper clad layers and reverse side copper clad layers, this front copper clad layers and reverse side copper clad layers mutually insulated and be all positioned at and cover copper region, and pcb board is provided with the pad group being positioned at welding region, this pad group comprises the first polarity pad be electrically connected with described front copper clad layers and the second polarity pad be electrically connected with described reverse side copper clad layers, all described electrically-conductive backing plates and the alternately laminated setting of circuit board are also fixed together, described two pieces of electrically-conductive backing plates respectively with the front copper clad layers of circuit board and reverse side copper clad layers close contact to realize being electrically connected, described electrically-conductive backing plate has cooling fluid opening, and the entery and delivery port of this cooling fluid opening is arranged on the noncontact face of electrically-conductive backing plate and circuit board.
Improve as one of the present utility model, described pcb board have additional one group or more described in be positioned at the pad group of welding region, described each assembly welding dish group is evenly arranged along covering copper region with the crossing boundary line of welding region.
Improve as one of the present utility model, described water-cooled laminating bus bar to have additional a pair or more plate group, and this plate group comprises one piece of described electrically-conductive backing plate and one piece of described circuit board; All described electrically-conductive backing plates and the alternately laminated setting of circuit board, and adjacent two pieces of circuit boards to stack direction contrary, make any one piece of electrically-conductive backing plate only with the front copper clad layers of circuit board or only contact to realize being electrically connected with the reverse side copper clad layers of circuit board, the each piece of electrically-conductive backing plate contacted with the front copper clad layers of circuit board is electrically connected to each other, and each piece of electrically-conductive backing plate contacted with the reverse side copper clad layers of circuit board is electrically connected to each other.
In order to improve the reliability of electrical connection between electrically-conductive backing plate and the copper clad layers of circuit board, improve as one of the present utility model, the contact-making surface of described electrically-conductive backing plate and circuit board is coated with electric conducting material.
As a kind of execution mode of the present utility model, described electrically-conductive backing plate and circuit board all offer the through hole being positioned at contact-making surface region, described each piece of stacked electrically-conductive backing plate and circuit board are fixed together by the screw through through hole, and between described screw with electrically-conductive backing plate or and circuit board between insulate mutually.
As a kind of execution mode of the present utility model, described pad group is welded with metal-oxide-semiconductor, wherein, the source electrode of metal-oxide-semiconductor is electrically connected with described first polarity pad, draining is electrically connected with affiliated second polarity pad.
As a kind of execution mode of the present utility model, described circuit board is also provided with and is positioned at welding region for controlling the drive circuit of described metal-oxide-semiconductor work, and the output of described drive circuit is electrically connected with the grid of metal-oxide-semiconductor.
Apply a synchronous rectificating device for above-mentioned water-cooled laminating bus bar, it is characterized in that: described synchronous rectificating device comprises the output positive and negative electrode of water-cooled transformer, two above-mentioned water-cooled laminating bus bars and synchronous rectificating device; The electrically-conductive backing plate that electrically-conductive backing plate is electrically connected, different name end contacts with reverse side copper clad layers with another water-cooled laminating bus bar that secondary coil Same Name of Ends and one of them water-cooled laminating bus bar of described water-cooled transformer contact with reverse side copper clad layers is electrically connected, the electrically-conductive backing plate that described two water-cooled laminating bus bars contact with front copper clad layers is electrically connected to each other and is connected to the output head anode of synchronous rectificating device, and the secondary coil centre cap of described water-cooled transformer is connected to the negative pole of output end of synchronous rectificating device;
The entery and delivery port of the cooling fluid opening of described water-cooled laminating bus bar is separately installed with nozzle and spout, the cooling fluid delivery outlet of the water inlet tap connection external refrigeration liquid circulation supply equipment of one of them water-cooled laminating bus bar, faucet are communicated with the cooling fluid water inlet of described water-cooled transformer, the cooling fluid recovery port that water inlet tap is communicated with the cooling fluid delivery port of described water-cooled transformer, faucet is communicated with external refrigeration liquid circulation supply equipment of another water-cooled laminating bus bar.
Compared with prior art, the utility model has following beneficial effect:
First, the pad group that water-cooled laminating bus bar of the present utility model is arranged can welding component as two of metal-oxide-semiconductor terminals, these two terminals are electrically connected with two external circuits by this water-cooled laminating bus bar, and the positive and negative copper clad layers of water-cooled laminating bus bar considerably increases conductive section, have very strong current carrying capacity, therefore this water-cooled laminating bus bar can be suitable for components and parts such as metal-oxide-semiconductor needs and external circuit and carries out the occasion of big current transmission;
And, water-cooled laminating bus bar of the present utility model is having larger area of dissipation while being beneficial to self-cold radiating, electrically-conductive backing plate has also offered cooling fluid opening, taken away the high heat produced within the unit interval by the electric current of circuit board and electrically-conductive backing plate by cooling water timely, fully meet the needs of water-cooled laminating bus bar to heat radiation under big current transmission occasion.
Second, water-cooled laminating bus bar of the present utility model is by having additional one group or more pad group, and each assembly welding dish group is evenly arranged along covering copper region with the crossing boundary line of welding region, make multiple components and parts such as metal-oxide-semiconductor can carry out parallel connection by this water-cooled laminating bus bar, and the arrangement of each components and parts is rationally compact, the big current passage that water-cooled laminating bus bar provides can be made full use of.
3rd, water-cooled laminating bus bar of the present utility model, by having additional a pair or more plate group, can improve the current carrying capacity of this water-cooled laminating bus bar further.
4th, synchronous rectificating device of the present utility model, by adopting water-cooled laminating bus bar, substantially increases current carrying capacity and heat-sinking capability.
In sum, the utility model has compact conformation, and radiating efficiency is high, and current carrying capacity is strong, low inductance, Low ESR, the advantage that reliability is strong.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the Facad structure schematic diagram of circuit board in the water-cooled laminating bus bar of the utility model preferred embodiment;
Fig. 2 is the right TV structure schematic diagram of circuit board in the water-cooled laminating bus bar of the utility model preferred embodiment;
Fig. 3 is the right TV structure schematic diagram of the water-cooled laminating bus bar of the utility model preferred embodiment;
Fig. 4 is the main TV structure schematic diagram of the synchronous rectificating device of the utility model preferred embodiment;
Fig. 5 is the plan structure schematic diagram of the synchronous rectificating device of the utility model preferred embodiment;
Fig. 6 is the circuit theory diagrams of the synchronous rectificating device of the utility model preferred embodiment.
Embodiment
As shown in Figure 1 to Figure 3, the water-cooled laminating bus bar being applicable to big current transmission of the utility model preferred embodiment, comprises three pieces of electrically-conductive backing plates 1 and two pieces of circuit boards 2.
Circuit board 2 is divide to have the pcb board covering copper region 201 and welding region 202, the tow sides of pcb board are respectively equipped with front copper clad layers 203 and reverse side copper clad layers 204, this front copper clad layers 203 and reverse side copper clad layers 204 mutually insulated and be all positioned at and cover copper region 201, and pcb board is provided with the pad group that seven groups are positioned at welding region 202, this pad group comprises the first polarity pad be electrically connected with front copper clad layers 203 and the second polarity pad be electrically connected with reverse side copper clad layers 204, and each assembly welding dish group is evenly arranged along covering copper region 201 with the crossing boundary line of welding region 202.
All electrically-conductive backing plates 1 and the alternately laminated setting of circuit board 2, and adjacent two pieces of circuit boards 2 to stack direction contrary, make any one piece of electrically-conductive backing plate 1 only with the front copper clad layers 203 of circuit board 2 or only contact with the reverse side copper clad layers 204 of circuit board 2, and electrically-conductive backing plate 1 and the contact-making surface of circuit board 2 are coated with electric conducting material to realize reliable electrical connection, the each piece of electrically-conductive backing plate 1 contacted with the front copper clad layers 203 of circuit board 2 is electrically connected to each other, and each piece of electrically-conductive backing plate 1 contacted with the reverse side copper clad layers 204 of circuit board 2 is electrically connected to each other; Electrically-conductive backing plate 1 and circuit board 2 all offer the through hole b being positioned at contact-making surface region, and each piece of stacked electrically-conductive backing plate 1 and circuit board 2 are fixed together by the screw 3 through through hole b, and between screw 3 with electrically-conductive backing plate 1 or and circuit board 2 between insulate mutually.
Electrically-conductive backing plate 1 has cooling fluid opening a, the entery and delivery port of this cooling fluid opening a is arranged on electrically-conductive backing plate 1 with on the noncontact face of circuit board 2, and the water inlet of this cooling fluid opening a and delivery port position and internal flow path can need arrange according to the position design of heat dissipation design needs, water inlet tap and faucet.
Each pad group above-mentioned is all welded with a metal-oxide-semiconductor 4, wherein, the source electrode of metal-oxide-semiconductor 4 is electrically connected with the first polarity pad, draining is electrically connected with affiliated second polarity pad.Circuit board 2 is also provided with the drive circuit being positioned at welding region 202 and working for controlling metal-oxide-semiconductor 4, and the output of drive circuit is electrically connected with the grid of metal-oxide-semiconductor 4.
As shown in Figures 4 to 6, the utility model applies the synchronous rectificating device of above-mentioned water-cooled laminating bus bar, it is characterized in that: synchronous rectificating device comprises the output positive and negative electrode of water-cooled transformer 5, two claim 6 or 7 water-cooled laminating bus bars and synchronous rectificating device, the electrically-conductive backing plate 1 that secondary coil Same Name of Ends and one of them water-cooled laminating bus bar of water-cooled transformer 5 contact with reverse side copper clad layers 204 is electrically connected, to drain with the metal-oxide-semiconductor 4 be arranged on this water-cooled laminating bus bar to make secondary coil Same Name of Ends and be electrically connected, the electrically-conductive backing plate 1 that secondary coil different name end and another water-cooled laminating bus bar of water-cooled transformer 5 contact with reverse side copper clad layers 204 is electrically connected, to drain with the metal-oxide-semiconductor 4 be arranged on this water-cooled laminating bus bar to make secondary coil different name end and be electrically connected, the electrically-conductive backing plate 1 that two water-cooled laminating bus bars contact with front copper clad layers 203 is electrically connected to each other, metal-oxide-semiconductor 4 source electrode be arranged on these two water-cooled laminating bus bars is electrically connected to each other and is connected to the output head anode 6 of synchronous rectificating device, the secondary coil centre cap of water-cooled transformer 5 is connected to the negative pole of output end of synchronous rectificating device,
The entery and delivery port of the cooling fluid opening a of water-cooled laminating bus bar is separately installed with nozzle and spout, the water inlet tap of one of them water-cooled laminating bus bar is communicated with the cooling fluid delivery outlet of external refrigeration liquid circulation supply equipment, the cooling fluid water inlet of faucet connection water-cooled transformer 5, the cooling fluid recovery port that water inlet tap is communicated with the cooling fluid delivery port of water-cooled transformer 5, faucet is communicated with external refrigeration liquid circulation supply equipment of another water-cooled laminating bus bar.
The utility model does not limit to and above-mentioned embodiment; according to foregoing; according to ordinary technical knowledge and the customary means of this area; do not departing under the utility model above-mentioned basic fundamental thought prerequisite; the utility model can also make the equivalent modifications of other various ways, replacement or change, all drops among protection range of the present utility model.Such as, water-cooled laminating bus bar is only provided with two pieces of electrically-conductive backing plates 1 and one piece of circuit board 2; And for example, water-cooled laminating bus bar increases to set up a pair or more plate group on the basis of above-described embodiment, and this plate group comprises one piece of electrically-conductive backing plate 1 and one piece of circuit board 2; All electrically-conductive backing plates 1 and the alternately laminated setting of circuit board 2, and adjacent two pieces of circuit boards 2 to stack direction contrary, make any one piece of electrically-conductive backing plate 1 only with the front copper clad layers 203 of circuit board 2 or only contact to realize being electrically connected with the reverse side copper clad layers 204 of circuit board 2, the each piece of electrically-conductive backing plate 1 contacted with the front copper clad layers 203 of circuit board 2 is electrically connected to each other, and each piece of electrically-conductive backing plate 1 contacted with the reverse side copper clad layers 204 of circuit board 2 is electrically connected to each other; For another example, pcb board is provided with the pad group that a group or more is positioned at welding region 202, and each assembly welding dish group is evenly arranged along covering copper region 201 with the crossing boundary line of welding region 202.
Claims (8)
1. be applicable to a water-cooled laminating bus bar for big current transmission, it is characterized in that: described water-cooled laminating bus bar comprises two pieces of electrically-conductive backing plates (1) and one piece of circuit board (2), described circuit board (2) covers the pcb board of copper region (201) and welding region (202) for division has, the tow sides of described pcb board are respectively equipped with front copper clad layers (203) and reverse side copper clad layers (204), this front copper clad layers (203) and reverse side copper clad layers (204) mutually insulated and be all positioned at and cover copper region (201), and pcb board is provided with the pad group being positioned at welding region (202), this pad group comprises the first polarity pad be electrically connected with described front copper clad layers (203) and the second polarity pad be electrically connected with described reverse side copper clad layers (204), all described electrically-conductive backing plates (1) and circuit board (2) alternately laminated setting are also fixed together, described two pieces of electrically-conductive backing plates (1) respectively with the front copper clad layers (203) of circuit board (2) and reverse side copper clad layers (204) close contact to realize being electrically connected, described electrically-conductive backing plate (1) has cooling fluid opening (a), and the entery and delivery port of this cooling fluid opening (a) is arranged on electrically-conductive backing plate (1) with on the noncontact face of circuit board (2).
2. water-cooled laminating bus bar according to claim 1, it is characterized in that: described pcb board have additional one group or more described in be positioned at the pad group of welding region (202), described each assembly welding dish group is evenly arranged along covering copper region (201) with the crossing boundary line of welding region (202).
3. water-cooled laminating bus bar according to claim 1, is characterized in that: described water-cooled laminating bus bar to have additional a pair or more plate group, and this plate group comprises one piece of described electrically-conductive backing plate (1) and one piece of described circuit board (2), all described electrically-conductive backing plates (1) and circuit board (2) alternately laminated setting, and adjacent two pieces of circuit boards (2) to stack direction contrary, make any one piece of electrically-conductive backing plate (1) only with the front copper clad layers (203) of circuit board (2) or only contact to realize being electrically connected with the reverse side copper clad layers (204) of circuit board (2), the each piece of electrically-conductive backing plate (1) contacted with the front copper clad layers (203) of circuit board (2) is electrically connected to each other, the each piece of electrically-conductive backing plate (1) contacted with the reverse side copper clad layers (204) of circuit board (2) is electrically connected to each other.
4. water-cooled laminating bus bar according to claim 1, is characterized in that: described electrically-conductive backing plate (1) is coated with electric conducting material with the contact-making surface of circuit board (2).
5. water-cooled laminating bus bar according to claim 1, it is characterized in that: described electrically-conductive backing plate (1) and circuit board (2) all offer the through hole (b) being positioned at contact-making surface region, described each piece of stacked electrically-conductive backing plate (1) and circuit board (2) are fixed together by the screw (3) through through hole (b), and between described screw (3) with electrically-conductive backing plate (1) or and circuit board (2) between insulate mutually.
6. the water-cooled laminating bus bar according to claim 1 to 5 any one, it is characterized in that: described pad group is welded with metal-oxide-semiconductor (4), wherein, the source electrode of metal-oxide-semiconductor (4) is electrically connected with described first polarity pad, draining is electrically connected with affiliated second polarity pad.
7. water-cooled laminating bus bar according to claim 6, it is characterized in that: described circuit board (2) is also provided with the drive circuit being positioned at welding region (202) and working for controlling described metal-oxide-semiconductor (4), the output of described drive circuit is electrically connected with the grid of metal-oxide-semiconductor (4).
8. application rights requires a synchronous rectificating device for water-cooled laminating bus bar described in 6 or 7, it is characterized in that: described synchronous rectificating device comprises the output positive and negative electrode of water-cooled transformer (5), water-cooled laminating bus bar described in two claims 6 or 7 and synchronous rectificating device, the electrically-conductive backing plate (1) that secondary coil Same Name of Ends and one of them water-cooled laminating bus bar of described water-cooled transformer (5) contact with reverse side copper clad layers (204) is electrically connected, the electrically-conductive backing plate (1) that different name end contacts with reverse side copper clad layers (204) with another water-cooled laminating bus bar is electrically connected, the electrically-conductive backing plate (1) that described two water-cooled laminating bus bars contact with front copper clad layers (203) is electrically connected to each other and is connected to the output head anode (6) of synchronous rectificating device, the secondary coil centre cap of described water-cooled transformer (5) is connected to the negative pole of output end of synchronous rectificating device,
The entery and delivery port of cooling fluid opening (a) of described water-cooled laminating bus bar is separately installed with nozzle and spout, the cooling fluid delivery outlet of the water inlet tap connection external refrigeration liquid circulation supply equipment of one of them water-cooled laminating bus bar, faucet are communicated with the cooling fluid water inlet of described water-cooled transformer (5), the cooling fluid recovery port that water inlet tap is communicated with the cooling fluid delivery port of described water-cooled transformer (5), faucet is communicated with external refrigeration liquid circulation supply equipment of another water-cooled laminating bus bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420689821.6U CN204304801U (en) | 2014-11-17 | 2014-11-17 | Be applicable to water-cooled laminating bus bar and the synchronous rectificating device of big current transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420689821.6U CN204304801U (en) | 2014-11-17 | 2014-11-17 | Be applicable to water-cooled laminating bus bar and the synchronous rectificating device of big current transmission |
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| Publication Number | Publication Date |
|---|---|
| CN204304801U true CN204304801U (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420689821.6U Expired - Fee Related CN204304801U (en) | 2014-11-17 | 2014-11-17 | Be applicable to water-cooled laminating bus bar and the synchronous rectificating device of big current transmission |
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| CN (1) | CN204304801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467458A (en) * | 2014-11-17 | 2015-03-25 | 广州擎天实业有限公司 | Water-cooling layer bus bar suitable for large-current transmission and synchronous rectifying device |
-
2014
- 2014-11-17 CN CN201420689821.6U patent/CN204304801U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467458A (en) * | 2014-11-17 | 2015-03-25 | 广州擎天实业有限公司 | Water-cooling layer bus bar suitable for large-current transmission and synchronous rectifying device |
| CN104467458B (en) * | 2014-11-17 | 2017-01-18 | 广州擎天实业有限公司 | Synchronous rectifying device for water-cooling layer bus bar suitable for large-current transmission |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20161117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |