CN210129826U

CN210129826U - High-power three-phase rectifier bridge

Info

Publication number: CN210129826U
Application number: CN201921566365.5U
Authority: CN
Inventors: 陈良峰; 谈丽丽
Original assignee: Yangzhou Junpin Electronic Technology Co Ltd
Current assignee: Yangzhou Junpin Electronic Technology Co Ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-03-06
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses a high-power three-phase rectifier bridge, including plastic casing, copper base, the preceding terminal surface of copper base is provided with insulating ceramic wafer, last chip one, chip two, chip three, chip four, chip five, the chip six of having set gradually of insulating ceramic wafer, chip one, chip three and chip five are through five interconnect of connection piece, chip two, chip four and chip six are through five interconnect of connection piece, chip one and chip two are connected through connection piece one, chip three and chip four are connected through connection piece two, chip five, chip six are connected through connection piece three. The utility model discloses in, through the setting of copper sheet, chip and electrode slice, utilize the electrode slice with six chips two liang of connections, make six chip interconnect through the copper sheet, make between the chip with the area of contact increase of copper sheet, strengthened the ability that overflows of electrode slice to three-phase rectifier bridge's overcurrent power has been improved.

Description

High-power three-phase rectifier bridge

Technical Field

The utility model relates to a rectifier bridge technical field especially relates to a high-power three-phase rectifier bridge.

Background

The three-phase rectifier bridge seals a plurality of rectifier tubes in a shell to form a complete rectifier circuit, when power is further increased or a multi-phase rectifier is required due to other reasons, the three-phase rectifier circuit is provided, the overcurrent capacity of the existing three-phase rectifier bridge is general, the power is small, the using effect in the circuit is poor, meanwhile, an aluminum plate is used as a bottom plate in a plurality of circuits, and the heat dissipation efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the high-power three-phase rectifier bridge aims to solve the problems that the high-power three-phase rectifier bridge is general in overcurrent capacity and poor in heat dissipation effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a high-power three-phase rectifier bridge, includes plastic casing, copper base, the preceding terminal surface of copper base is provided with insulating ceramic piece, it has chip one, chip two, chip three, chip four, chip five, chip six to set gradually on the insulating ceramic piece, chip one, chip three and chip five interconnect through connection piece four, chip two, chip four and chip six interconnect through connection piece five, chip one and chip two pass through connection piece one and connect, chip three and chip four connect through connection piece two, chip five, chip six connect through connection piece three, be connected with electrode slice one on the connection piece one, be connected with electrode slice two on the connection piece two, be connected with electrode slice three on the connection piece three, be connected with electrode slice four on the connection piece four, be connected with electrode slice five on the connection piece five, chip one, The second chip, the third chip, the fourth chip, the fifth chip and the sixth chip are mutually connected through copper sheets.

As a further description of the above technical solution:

threaded holes are formed in four corners of the copper plate base.

As a further description of the above technical solution:

threaded holes are formed in four corners of the copper plate base.

As a further description of the above technical solution:

the copper sheet is provided with a bulge.

As a further description of the above technical solution:

the plastic shell is sleeved outside the copper plate base, and heat-conducting pouring sealant is filled inside the plastic shell.

As a further description of the above technical solution:

and the electrode plate four and the electrode plate five are alternating current input positive and negative electrodes.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through the setting of copper sheet, chip and electrode slice, utilize the electrode slice with six chips two liang of connections, make six chip interconnect through the copper sheet, make between the chip with the area of contact increase of copper sheet, strengthened the ability that overflows of electrode slice to three-phase rectifier bridge's overcurrent power has been improved.

2. The utility model discloses in through the copper base, the copper sheet, the setting of heat conduction casting glue, utilize the high thermal conductivity nature of copper to make the radiating rate who accelerates high-power three-phase rectifier bridge circuit, make the heat give off the air with the heat through the copper base, reduce the circuit ageing phenomenon that the heat gathering of high-power three-phase rectifier bridge circuit leads to, the heat conduction casting glue can utilize elastic deformation to reduce the damage of collision and vibrations area for electrical components on reinforcing radiating basis simultaneously, thereby the life of high-power three-phase rectifier bridge circuit has been prolonged.

Drawings

Fig. 1 is a schematic view of a top-view structure of a package of a high-power three-phase rectifier bridge according to the present invention;

fig. 2 is a schematic diagram of an internal overlooking structure of a high-power three-phase rectifier bridge provided by the present invention;

fig. 3 is the utility model provides an inside of high-power three-phase rectifier bridge looks sideways at the schematic structure.

Illustration of the drawings:

1. a plastic housing; 2. a copper plate base; 3. an insulating ceramic sheet; 4. a first chip; 5. a second chip; 6. a third chip; 7. a fourth chip; 8. chip five; 9. chip six; 10. connecting a first sheet; 11. a second connecting sheet; 12. connecting a third sheet; 13. a copper sheet; 14. a first electrode plate; 15. a second electrode plate; 16. a third electrode plate; 17. an electrode plate IV; 18. electrode slice five; 19. connecting a sheet IV; 20. and a fifth connecting sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a high-power three-phase rectifier bridge comprises a plastic shell 1, a copper plate base 2, wherein an insulating ceramic plate 3 is arranged on the front end face of the copper plate base 2, so that insulation between a three-phase rectifier bridge circuit and a copper plate is ensured, a chip I4, a chip II 5, a chip III 6, a chip IV 7, a chip IV 8 and a chip VI 9 are sequentially arranged on the insulating ceramic plate 3, the chip I4, the chip IV 6 and the chip IV 8 are mutually connected through a connecting plate IV 19, the chip II 5, the chip IV 7 and the chip VI 9 are mutually connected through a connecting plate V20, the chip I4 is connected with the chip II 5 through a connecting plate I10, the chip III 6 is connected with the chip IV 7 through a connecting plate II 11, the chip IV 8 and the chip VI 9 are connected through a connecting plate III 12, so that the chip I4, the chip II 5, the chip III 6, the chip IV 7, the chip IV 8 and the chip VI 9 are ensured, the first connecting sheet 10 is connected with a first electrode sheet 14, the second connecting sheet 11 is connected with a second electrode sheet 15, the third connecting sheet 12 is connected with a third electrode sheet 16, the fourth connecting sheet 19 is connected with a fourth electrode sheet 17, the fifth connecting sheet 20 is connected with a fifth electrode sheet 18, and the first chip 4, the second chip 5, the third chip 6, the fourth chip 7, the fifth chip 8 and the sixth chip 9 are connected with one another through copper sheets 13.

Specifically, as shown in fig. 1, threaded holes are formed in four corners of the copper plate base 2, so that the copper plate base 2 and corresponding components can be conveniently mounted.

Specifically, as shown in fig. 3, the copper sheet 13 is provided with a protruding portion to enhance the overcurrent capability of the circuit.

Specifically, as shown in fig. 1, the plastic shell 1 is sleeved outside the copper plate base 2, and the heat conducting potting adhesive is filled inside the plastic shell 1, so as to play a role in heat dissipation and shock absorption.

Specifically, as shown in fig. 1, the electrode plate four 17 and the electrode plate five 18 are positive and negative input electrodes of alternating current, so that the three-phase rectification circuit can integrate alternating current into direct current.

The working principle is as follows: when the three-phase rectifier bridge circuit is used, the copper plate base 2 is fixed on a corresponding component through four threaded holes, an input electrode of an alternating current circuit is respectively connected with the electrode plate four 17 and the electrode plate five 18, current is led into the connecting sheet four 19 and the connecting sheet five 20 through the electrode plate four 17 and the electrode plate five 18, the current enters the three-phase rectifier bridge circuit formed among the chip I4, the chip II 5, the chip III 6, the chip IV 7, the chip V8 and the chip VI 9 through the connecting sheet four 19 and the connecting sheet five 20, when the current passes through the copper sheet 13, the overcurrent capacity is enhanced, so that the power of the three-phase rectifier bridge circuit is improved, the three-phase rectifier bridge circuit easily generates heat during working, the heat in the circuit is quickly conducted to the copper plate base 2 through the copper sheet 13 and heat conducting pouring sealant, the heat is prevented from being accumulated for a long time during the working of, thereby prolonging the service life of the high-power rectifier bridge circuit.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A high-power three-phase rectifier bridge comprises a plastic shell (1) and a copper plate base (2), and is characterized in that an insulating ceramic plate (3) is arranged on the front end face of the copper plate base (2), a chip I (4), a chip II (5), a chip III (6), a chip IV (7), a chip V (8) and a chip VI (9) are sequentially arranged on the insulating ceramic plate (3), the chip I (4), the chip IV (6) and the chip V (8) are connected with each other through a connecting sheet IV (19), the chip II (5), the chip IV (7) and the chip VI (9) are connected with each other through a connecting sheet V (20), the chip I (4) is connected with the chip II (5) through a connecting sheet I (10), the chip III (6) is connected with the chip IV (7) through a connecting sheet II (11), the chip V (8) and the chip VI (9) are connected through a connecting sheet III (12), the chip is characterized in that a first electrode plate (14) is connected to the first connecting sheet (10), a second electrode plate (15) is connected to the second connecting sheet (11), a third electrode plate (16) is connected to the third connecting sheet (12), a fourth electrode plate (17) is connected to the fourth connecting sheet (19), a fifth electrode plate (18) is connected to the fifth connecting sheet (20), and the first chip (4), the second chip (5), the third chip (6), the fourth chip (7), the fifth chip (8) and the sixth chip (9) are connected with one another through copper sheets (13).

2. The high-power three-phase rectifier bridge according to claim 1, wherein four corners of the copper plate base (2) are provided with threaded holes.

3. The high-power three-phase rectifier bridge according to claim 1, characterized in that the copper sheet (13) is provided with a convex portion.

4. The high-power three-phase rectifier bridge according to claim 2, wherein the plastic casing (1) is sleeved outside the copper plate base (2), and the interior of the plastic casing (1) is filled with heat-conducting pouring sealant.

5. The high power three-phase rectifier bridge according to claim 1, wherein the electrode plate four (17) and the electrode plate five (18) are positive and negative AC input electrodes.