CN207010557U - A kind of novel bridge type rectification module - Google Patents
A kind of novel bridge type rectification module Download PDFInfo
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- CN207010557U CN207010557U CN201720726693.1U CN201720726693U CN207010557U CN 207010557 U CN207010557 U CN 207010557U CN 201720726693 U CN201720726693 U CN 201720726693U CN 207010557 U CN207010557 U CN 207010557U
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Abstract
The utility model provides a kind of novel bridge type rectification module, including housing, and base is welded with the housing, and multiple bottom plates are provided with the bottom interior wall of base, and the surface of base is provided with insulating barrier；Two-phase bridge rectifier is packaged with the bottom plate；The side of the housing is provided with two-phase AC input terminal, direct current output positive electrode terminal, direct current output negative electrode terminal, and two-phase AC input terminal, direct current output positive electrode terminal, direct current output negative electrode terminal are connected by T-shaped molybdenum sheet with bottom plate.The utility model uses the hermetically sealed shell of metal, has good sealing, can be very good to shield influence of the extraneous signal to product function, it is ensured that tube core is hedged off from the outer world；Using tungsten copper and beryllium oxide as baseboard material, insulated between chip and bottom plate, will not be because of quenching or shock heating and embrittlement, both with high-termal conductivity and good heat endurance；Insulated between shell and electrode, avoid electric current, voltage and shell conductive.
Description
Technical field
A kind of novel bridge type rectification module is the utility model is related to, belongs to electron electric power field.
Background technology
Bridge rectifier module, it is mainly used in the biphase rectification circuit of aero dynamo electronic circuit, is used as high current rectification.
Current bridge rectification device generally use Plastic Package both domestic and external, belongs to non-hermetically sealed or half level Hermetic Package, so moisture resistance
Can be poor, easily by ionic soil；Simultaneously heat conductivility and heat endurance it is also bad, plastic packaging module work when be lost it is excessive, radiating not
It is good, the application of high current rectification circuit is not utilized, and is influenceed by capsulation material the problems such as stomata, layering, serious shadow be present
The reliability of Chinese percussion instrument part.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of novel bridge type rectification module, the novel bridge type is whole
Flow module uses the hermetically sealed shell of metal so that and the rectification module thermal conductivity is good, rapid heat dissipation, and securely and reliably.
The utility model is achieved by the following technical programs.
A kind of novel bridge type rectification module provided by the utility model, including housing, base is welded with the housing,
The bottom interior wall of base is provided with multiple bottom plates, and the surface of base is provided with insulating barrier；It is whole that two-phase bridge-type is packaged with the bottom plate
Current circuit；It is extreme that the side of the housing is provided with two-phase AC input terminal, direct current output positive electrode terminal, direct current output negative electricity
Son, two-phase AC input terminal, direct current output positive electrode terminal, direct current output negative electrode terminal are connected by T types molybdenum sheet and bottom plate
It is logical.
The bottom plate has three pieces, and first piece of bottom plate is located at the top of base, and two semiconductors are provided with first piece of bottom plate
Rectifier diode chip, second piece of bottom plate and the 3rd piece of bottom plate are positioned at the lower section of first piece of bottom plate, second piece of bottom plate and the 3rd piece
Bottom plate parallel arranged, a semiconductor rectifier diode chip is respectively equipped with second piece of bottom plate and the 3rd piece of bottom plate.
Semiconductor rectifier diode chip on first piece of bottom plate passes through aluminium wire and second piece of bottom plate and the 3rd piece of bottom
Plate connects, and the semiconductor rectifier diode chip of second piece of bottom plate connects the pole of semiconductor rectifier two of the 3rd piece of bottom plate by aluminium wire
Die, the semiconductor rectifier diode chip of the 3rd piece of bottom plate are connected by aluminium wire with direct current output negative electrode terminal.
The two-phase AC input terminal is freezed on second piece of bottom plate and the 3rd piece of bottom plate by T-shaped molybdenum sheet, and direct current is defeated
Go out positive electrode terminal to freeze on first piece of bottom plate by T-shaped molybdenum sheet, direct current output negative electrode terminal is welded on by T-shaped molybdenum sheet
On 3rd piece of bottom plate.
The two-phase bridge rectifier is the two-phase bridge circuit that semiconductor rectifier diode chip is formed by connecting.
The two-phase bridge circuit by after four semiconductor rectifier diode chip parallel connections with two-phase AC input terminal, straight
Stream output positive electrode terminal, direct current output negative electrode terminal connect to be formed.
The housing is the all-sealed housing of metal.
The base, semiconductor rectifier diode chip are freezed using soldering paste, and aluminium wire uses pressure welding.
The beneficial effects of the utility model are：Using the hermetically sealed shell of metal, there is good sealing, can be fine
Influence of the shielding extraneous signal to product function, it is ensured that tube core is hedged off from the outer world；Using tungsten copper and beryllium oxide as baseboard material, core
Insulated between piece and bottom plate, will not be because of quenching or shock heating and embrittlement, both with high-termal conductivity and good heat endurance；Shell
Insulated between electrode, avoid electric current, voltage and shell conductive；Sealing-in reliability height is carried out by ceramic insulator and shell,
Overload capacity is high, enables product high temperature resistant and is subjected to larger cold and hot great change；In rectification module thermal source, the i.e. pole of semiconductor rectifier two
Die, a path of low thermal resistance is provided with metal shell, ensure filling for tube core and insulating barrier and insulating barrier and metal shell
Tap is touched, and reduces thermal resistance, beneficial to the radiating of rectification module.
Brief description of the drawings
Fig. 1 is schematic cross-section of the present utility model；
Fig. 2 is front view of the present utility model；
Fig. 3 is circuit theory diagrams of the present utility model；
In figure：1- housings, 2- bases, 3- bottom plates, 4- insulating barriers, 5- two-phase AC input terminals, 6- direct current output positive electricity
Extreme son, 7- direct current output negative electrode terminals, 8-T type molybdenum sheets, 9- aluminium wires.
Embodiment
Be described further below the technical solution of the utility model, but claimed scope be not limited to it is described.
As depicted in figs. 1 and 2, a kind of novel bridge type rectification module, including housing 1, base 2 is welded with the housing 1,
Multiple bottom plates 3 are provided with the bottom interior wall of base 2, the surface of base 2 is provided with insulating barrier 4；Two-phase is packaged with the bottom plate 3
Bridge rectifier；It is defeated that the side of the housing 1 is provided with two-phase AC input terminal 5, direct current output positive electrode terminal 6, direct current
Go out negative electrode terminal 7, two-phase AC input terminal 5, direct current output positive electrode terminal 6, direct current output negative electrode terminal 7 pass through T
Type molybdenum sheet 8 connects with bottom plate 3.
Further, the bottom plate 3 has three pieces, and first piece of bottom plate 3 is located at the top of base 2, is set on first piece of bottom plate 3
There are two semiconductor rectifier diode chips, second piece of bottom plate 3 and the 3rd piece of bottom plate 3 are positioned at the lower section of first piece of bottom plate 3, and second
Block bottom plate 3 and the 3rd piece of parallel arranged of bottom plate 3, it is whole on second piece of bottom plate 3 and the 3rd piece of bottom plate 3 to be respectively equipped with a semiconductor
Flow diode chip for backlight unit；Semiconductor rectifier diode chip on first piece of bottom plate 3 by aluminium wire 9 and second piece of bottom plate 3 and
3rd piece of bottom plate 3 connects, and the semiconductor rectifier diode chip of second piece of bottom plate 3 connects the half of the 3rd piece of bottom plate 3 by aluminium wire 9
Conductor rectifier diode chip, the semiconductor rectifier diode chip of the 3rd piece of bottom plate 3 pass through aluminium wire 9 and direct current output negative electricity
Extreme son 7 connects；The two-phase AC input terminal 5 is freezed in second piece of bottom plate 3 and the 3rd piece of bottom plate 3 by T-shaped molybdenum sheet 8
On, direct current output positive electrode terminal 6 is freezed on first piece of bottom plate 3 by T-shaped molybdenum sheet 8, and direct current output negative electrode terminal 7 passes through
T-shaped molybdenum sheet 8 is welded on the 3rd piece of bottom plate 3；The two-phase bridge rectifier be semiconductor rectifier diode chip connect and
Into two-phase bridge circuit；The two-phase bridge circuit is defeated by being exchanged after four semiconductor rectifier diode chip parallel connections with two-phase
Enter terminal 5, direct current output positive electrode terminal 6, the series connection formation of direct current output negative electrode terminal 7, as shown in Figure 3；The housing 1 is
The all-sealed housing of metal；The base 2, semiconductor rectifier diode chip are freezed using soldering paste, and aluminium wire 9 uses pressure welding.
Embodiment
As described above, to prevent semiconductor rectifier diode chip is concentrated very much from causing to burn out, heat transfer is used on base 2
The stronger beryllium oxide of ability, as semiconductor rectifier diode chip and the insulating materials of bottom plate 3, and set on the insulating material
One piece of T-shaped molybdenum sheet 8 carries out freezing for semiconductor rectifier diode chip, and semiconductor rectifier diode chip takes into full account when assembling
The heat-dissipating space of each semiconductor rectifier diode chip, makes have certain space between each semiconductor rectifier diode chip
Distance, heat caused by semiconductor rectifier diode chip is allowed to distribute in time, base 2, semiconductor rectifier diode chip use
The mode that soldering paste freezes is welded, then is carried out pressure welding with 100 μm of aluminium wire 9 and connected each semiconductor rectifier diode chip
The rectifier bridge of composition, finally carry out parallel sealing cap and be processed into finished product.
Wherein, interior passivation glass layer is located in direct current output positive electrode terminal 6, semiconductor rectifier diode chip front side court
On, avoid because passivation glass layer causes product short-circuit in solder covering, along with the advantage of Metal Packaging profile, the product by
External environmental interference is little, is suitable for moist and environmental test, parameter comparison such as following table：
Claims (8)
1. a kind of novel bridge type rectification module, including housing (1), it is characterised in that：Base (2) is welded with the housing (1),
Multiple bottom plates (3) are provided with the bottom interior wall of base (2), the surface of base (2) is provided with insulating barrier (4)；On the bottom plate (3)
It is packaged with two-phase bridge rectifier；The side of the housing (1) is provided with two-phase AC input terminal (5), direct current output positive electricity
Extreme son (6), direct current output negative electrode terminal (7) are two-phase AC input terminal (5), direct current output positive electrode terminal (6), straight
Stream output negative electrode terminal (7) is connected by T-shaped molybdenum sheet (8) with bottom plate (3).
2. novel bridge type rectification module as claimed in claim 1, it is characterised in that：The bottom plate (3) has three pieces, first piece of bottom
Plate (3) is located at the top of base (2), and two semiconductor rectifier diode chips, second piece of bottom are provided with first piece of bottom plate (3)
Plate (3) and the 3rd piece of bottom plate (3) are parallel positioned at the lower section of first piece of bottom plate (3), second piece of bottom plate (3) and the 3rd piece of bottom plate (3)
Arrangement, a semiconductor rectifier diode chip is respectively equipped with second piece of bottom plate (3) and the 3rd piece of bottom plate (3).
3. novel bridge type rectification module as claimed in claim 2, it is characterised in that：Partly leading on first piece of bottom plate (3)
Body rectifier diode chip is connected by aluminium wire (9) with second piece of bottom plate (3) and the 3rd piece of bottom plate (3), second piece of bottom plate (3)
Semiconductor rectifier diode chip by aluminium wire (9) connect the 3rd piece of bottom plate (3) semiconductor rectifier diode chip, the 3rd piece
The semiconductor rectifier diode chip of bottom plate (3) is connected by aluminium wire (9) with direct current output negative electrode terminal (7).
4. novel bridge type rectification module as claimed in claim 3, it is characterised in that：The two-phase AC input terminal (5) is logical
Cross T-shaped molybdenum sheet (8) to freeze on second piece of bottom plate (3) and the 3rd piece of bottom plate (3), direct current output positive electrode terminal (6) is by T-shaped
Molybdenum sheet (8) freezes on first piece of bottom plate (3), and direct current output negative electrode terminal (7) is welded on the 3rd piece by T-shaped molybdenum sheet (8)
On bottom plate (3).
5. novel bridge type rectification module as claimed in claim 1, it is characterised in that：The two-phase bridge rectifier is partly to lead
The two-phase bridge circuit that body rectifier diode chip is formed by connecting.
6. novel bridge type rectification module as claimed in claim 5, it is characterised in that：The two-phase bridge circuit is led by four and half
Born after body rectifier diode chip parallel connection with two-phase AC input terminal (5), direct current output positive electrode terminal (6), direct current output
Electrode terminal (7) series connection is formed.
7. novel bridge type rectification module as claimed in claim 1, it is characterised in that：The housing (1) is that metal is all-sealed
Housing.
8. the novel bridge type rectification module as described in any one in Claims 1 to 4, it is characterised in that：The base (2),
Semiconductor rectifier diode chip is freezed using soldering paste, and aluminium wire (9) uses pressure welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720726693.1U CN207010557U (en) | 2017-06-21 | 2017-06-21 | A kind of novel bridge type rectification module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720726693.1U CN207010557U (en) | 2017-06-21 | 2017-06-21 | A kind of novel bridge type rectification module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207010557U true CN207010557U (en) | 2018-02-13 |
Family
ID=61448223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720726693.1U Active CN207010557U (en) | 2017-06-21 | 2017-06-21 | A kind of novel bridge type rectification module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207010557U (en) |
-
2017
- 2017-06-21 CN CN201720726693.1U patent/CN207010557U/en active Active
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