CN210925993U

CN210925993U - Reversing device

Info

Publication number: CN210925993U
Application number: CN202020013307.6U
Authority: CN
Inventors: 周文全; 王彦丽; 赵瀛江
Original assignee: Sichuan Injet Electric Co Ltd
Current assignee: Sichuan Injet Electric Co Ltd
Priority date: 2020-01-03
Filing date: 2020-01-03
Publication date: 2020-07-03
Anticipated expiration: 2030-01-03

Abstract

The utility model relates to a high-power supply technical field provides a reversing arrangement, including a plurality of MOS pipe subassemblies, input pole, output pole, liquid cooling radiator, the utility model discloses an upper and lower input, left and right sides output, the MOS pipe subassembly is arranged in the first output pole, the second output pole outside, the liquid cooling radiator sets up between input pole and output pole, whole device structure height symmetry, when improving the radiating efficiency, also enables overall structure compactness, can carry out overall arrangement and installation in a flexible way; each group of MOS tube assemblies are arranged on the outer side of the output electrode, the conduction paths of the MOS tube assemblies are the same, and the current-sharing performance is high; the liquid cooling radiator is combined, the pins of the MOS tubes can radiate heat through cooling liquid, the conversion efficiency is improved, the structural universality is high, and the structural and operating costs are reduced.

Description

Reversing device

Technical Field

The utility model relates to a high-power supply technical field, in particular to switching-over device.

Background

In the electroplating industry and other industries, the output of a power supply is generally required to realize positive and negative reversing so as to meet the requirements of the electroplating process and other processes. Because the output current of the high-power direct-current power supply required by electrolysis and electroplating is usually thousands of amperes, and the output voltage is usually tens of volts, in the prior art, mechanical commutation is mostly adopted, or commutation is carried out through an H bridge after rectification.

Chinese utility model patent that the date of the grant announcement is CN201821487177.9 discloses an output rectification switching-over unit and power thereof, and its rectification switching-over unit comprises a plurality of MOS tube subassemblies and drive plate, through switching on of the different group of MOS tube subassemblies of drive plate control, and then realizes rectification and switching-over. However, in the structure of the scheme, the MOS tube assemblies are respectively connected with one surfaces of the first output electrode and the second output electrode, the number of the MOS tubes is increased for a module with higher output current, the length of the MOS tubes is longer, the volume of the corresponding MOS tube assemblies is increased, the structural cost is also increased, and the current equalization is not facilitated. Secondly, the secondary side of vary voltage unit is connected with the MOS pipe subassembly electricity of rectification switching-over unit, and the back is hugged closely in first, the heat dissipation of second output pole through insulating material, and this can make the MOS pipe subassembly not direct with liquid cooling output pole contact heat dissipation, and to higher electric current, the MOS pipe radiating effect is not good, influences its normal work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to improve the not enough that exists among the prior art, provide a compact structure, can quick radiating switching-over device.

In order to realize the purpose of the utility model, the embodiment of the utility model provides a following technical scheme:

a commutation device comprises a plurality of MOS tube assemblies, an input electrode, an output electrode and a liquid cooling radiator, wherein:

the output pole comprises a first output pole and a second output pole, the input pole comprises a first input pole and a second input pole, and the liquid cooling radiators comprise a first liquid cooling radiator, a second liquid cooling radiator, a third liquid cooling radiator and a fourth liquid cooling radiator;

the first liquid cooling radiator is respectively connected with the inner wide surface of the first input pole and the inner narrow surface of the first output pole, the second liquid cooling radiator is respectively connected with the inner wide surface of the first input pole and the inner narrow surface of the second output pole, the third liquid cooling radiator is respectively connected with the inner wide surface of the second input pole and the inner narrow surface of the first output pole, and the fourth liquid cooling radiator is respectively connected with the inner wide surface of the second input pole and the inner narrow surface of the second input pole; each liquid cooling radiator is in insulated connection with the first output pole or the second output pole;

the MOS tube assemblies comprise a first MOS tube assembly arranged on the outer side wide surface of the first output pole and the outer side surface of the first liquid cooling radiator, a second MOS tube assembly arranged on the outer side wide surface of the first output pole and the outer side surface of the third liquid cooling radiator, a third MOS tube assembly arranged on the outer side wide surface of the second output pole and the outer side surface of the second liquid cooling radiator, and a fourth MOS tube assembly arranged on the outer side wide surface of the second output pole and the outer side surface of the fourth liquid cooling radiator;

the first output electrode and the second output electrode are both in a cuboid structure, and the wide surfaces of the first output electrode and the second output electrode are parallel and are symmetrical left and right; the first input electrode and the second input electrode are both of cuboid structures, and the wide surfaces of the first input electrode and the second input electrode are parallel and are vertically symmetrical; the liquid cooling radiator is arranged between the input electrode and the output electrode, so that the whole structure of the device is highly symmetrical, the structure is compact while the heat dissipation is improved, the conduction paths of the MOS tubes are the same, and the current-sharing performance is high. Each group of MOS tube assemblies is electrically connected with the liquid cooling radiator, the first output electrode and the second output electrode, and the first output electrode and the second output electrode are also connected with the liquid cooling radiator, so that reliable heat dissipation of each MOS tube is guaranteed, and conversion efficiency is improved.

Still further, for better realization the utility model discloses, every the MOS pipe subassembly includes one or more MOS pipe, is connected to the input piece of MOS pipe input end, the input piece is connected to on the liquid cooling radiator, MOS pipe output end is connected to the output extremely wide face.

Still further, for better realization the utility model discloses, every the MOS pipe subassembly still includes the output piece that is connected to MOS pipe output end, the output piece is installed on the output extremely wide face.

Furthermore, in order to better realize the utility model, the utility model also comprises a drive board, wherein the drive board is used for controlling the conduction of the plurality of MOS tube assemblies, when the first output electrode output is negative after the first MOS tube assembly and the fourth MOS tube assembly are directly conducted, the drive board drives the second output electrode output to be positive after the second MOS tube assembly and the third MOS tube assembly are conducted; when the second MOS tube component and the third MOS tube component are directly conducted to the second output electrode and output is negative, the driving plate drives the first MOS tube component and the fourth MOS tube component to conduct the first output electrode and output is positive, and output rectification and reversing are achieved.

Furthermore, for better realization the utility model discloses, the drive plate is including setting up on the wide face in the first output utmost point outside and respectively with first MOS pipe subassembly, third MOS pipe subassembly electric connection's first drive plate to and set up on the wide face in the second output utmost point outside and respectively with second MOS pipe subassembly, fourth MOS pipe subassembly electricity second drive plate of having gone on being connected.

Further, for better realization the utility model discloses, the liquid cooling radiator is the cuboid structure, every the liquid cooling radiator all has radiator input port, radiator delivery outlet, and the inside of liquid cooling radiator is the cavity body, the radiator input port is used for inputing the coolant liquid, the radiator delivery outlet is used for exporting the coolant liquid.

The radiator input port and the radiator output port are communicated with the cavity inside the radiator, so that cooling liquid can flow conveniently, and the radiating efficiency is enhanced.

Furthermore, in order to better realize the utility model, the first input pole is directly connected with the first liquid cooling radiator and the second liquid cooling radiator through screws, and the second input pole is directly connected with the third liquid cooling radiator and the fourth liquid cooling radiator through screws; the first output pole is connected with the first liquid cooling radiator and the third liquid cooling radiator through the insulating sheets and the insulating screws, the second output pole is connected with the second liquid cooling radiator and the fourth liquid cooling radiator through the insulating sheets and the insulating screws, and short circuit caused by electric conduction of the first output pole and the second output pole is avoided.

Furthermore, in order to better realize the utility model, the first output electrode and the second output electrode are both provided with an output electrode input port and an output electrode output port, and the interiors of the first output electrode and the second output electrode are hollow cavities, and the output electrode input port and the output electrode output port are communicated with the hollow cavities; the output electrode input port is used for inputting cooling liquid, and the output electrode output port is used for outputting the cooling liquid.

The output pole input port and the output pole output port are communicated with the hollow cavity inside the output pole, so that cooling liquid can flow conveniently, and the heat dissipation efficiency is improved. And each group of MOS tube assemblies is electrically connected with the liquid cooling radiator and the output electrode with the hollow cavity, the output electrode input port and the output electrode output port, so that reliable heat dissipation of each MOS tube is ensured, and the conversion efficiency is improved.

Still further, for better realization the utility model discloses, it is a plurality of the MOS pipe assembly is still including setting up the fifth MOS pipe assembly on the inboard wide face of first output utmost point, first liquid cooling radiator medial surface, sets up the sixth MOS pipe assembly on the inboard wide face of first output utmost point, third liquid cooling radiator medial surface, sets up the seventh MOS pipe assembly on the inboard wide face of second output utmost point, second liquid cooling radiator medial surface, sets up the eighth MOS pipe assembly on the inboard wide face of second output utmost point, fourth liquid cooling radiator medial surface.

Still further, for better realization the utility model discloses, first MOS pipe subassembly, fifth MOS pipe subassembly, fourth MOS pipe subassembly, eighth MOS pipe subassembly switch on simultaneously, third MOS pipe subassembly, seventh MOS pipe subassembly, second MOS pipe subassembly, sixth MOS pipe subassembly switch on simultaneously.

For a module with higher output current, the MOS tube components are directly added on the inner sides of the wide surfaces of the first output electrode and the second output electrode, so that the length of the device is not increased or the volume of the device is not increased while the number of the MOS tubes is increased.

Furthermore, for better realization the utility model discloses, the MOS pipe can also be replaced with the IGBT.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an upper and lower input, left and right sides output, MOS pipe assembly arrange in first output pole, the second output pole outside, the liquid cooling radiator sets up between input pole and output pole, whole device structure high symmetry, when improving the radiating efficiency, also can make overall structure compact, can carry out overall arrangement and installation in a flexible way; each group of MOS tube assemblies are arranged on the outer side of the output electrode, the conduction paths of the MOS tube assemblies are the same, and the current-sharing performance is high; the liquid cooling radiator is combined, the pins of the MOS tubes can radiate heat through cooling liquid, the conversion efficiency is improved, the structural universality is high, and the structural and operating costs are reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic perspective view of a reversing device according to embodiment 1 of the present invention;

fig. 2 is a schematic front view of a reversing device according to embodiment 1 of the present invention;

fig. 3 is a schematic perspective view of a reversing device according to embodiment 2 of the present invention;

fig. 4 is a schematic front view of a reversing device according to embodiment 2 of the present invention.

Description of the main elements

The first output electrode 11, the second output electrode 12, the first input electrode 21, the second input electrode 22, the first liquid-cooled heat sink 31, the second liquid-cooled heat sink 32, the third liquid-cooled heat sink 33, the fourth liquid-cooled heat sink 34, the first driving board 41, the second driving board 42, the first MOS tube assembly 51, the second MOS tube assembly 52, the third MOS tube assembly 53, the fourth MOS tube assembly 54, the fifth MOS tube assembly 55, the sixth MOS tube assembly 56, the seventh MOS tube assembly 57, the eighth MOS tube assembly 58, the output electrode input port 131, the output electrode output port 132, the heat sink 351, the heat sink output port 352, the input sheet 511, the MOS tubes 512, the output sheet 513, and the support column 6.

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. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Also, in the description of the present invention, the terms "first," "second," and the like are used solely for distinguishing between the descriptions and not necessarily for indicating or implying any actual such relationship or order between such entities or operations.

Example 1:

the utility model discloses a following technical scheme realizes, as shown in fig. 1, 2, a switching-over device, including a plurality of MOS pipe subassemblies, input pole, output pole, liquid cooling radiator, drive plate, wherein:

the output pole comprises a first output pole 11 and a second output pole 12, the input pole comprises a first input pole 21 and a second input pole 22, and the liquid cooling radiators comprise a first liquid cooling radiator 31, a second liquid cooling radiator 32, a third liquid cooling radiator 33 and a fourth liquid cooling radiator 34; first liquid cooling radiator 31 is connected with the inboard wide face of first input utmost point 21, first output utmost point 11 one side leptoprosopy respectively, second liquid cooling radiator 32 is connected with the inboard wide face of first input utmost point 21, second output utmost point 12 one side leptoprosopy respectively, third liquid cooling radiator 33 is connected with the inboard wide face of second input utmost point 22, first output utmost point 11 opposite side leptoprosopy respectively, fourth liquid cooling radiator 34 is connected with the inboard wide face of second input utmost point 22, second input utmost point 22 opposite side leptoprosopy respectively, and every liquid cooling radiator is connected with first output utmost point 11 or second output utmost point 12 with insulating mode.

As shown in fig. 2, the plurality of MOS tube assemblies includes a first MOS tube assembly 51 disposed on the outer wide surface of the first output electrode 11 and the outer side surface of the first liquid-cooled heat sink 31, a second MOS tube assembly 52 disposed on the outer wide surface of the first output electrode 11 and the outer side surface of the third liquid-cooled heat sink 33, a third MOS tube assembly 53 disposed on the outer wide surface of the second output electrode 12 and the outer side surface of the second liquid-cooled heat sink 32, and a fourth MOS tube assembly 54 disposed on the outer wide surface of the second output electrode 12 and the outer side surface of the fourth liquid-cooled heat sink 34.

It should be noted that, as shown in fig. 1, a plane on which a longer side of a minimum cross-sectional rectangle in a rectangular parallelepiped structure of the output electrode is located is a wide plane, a plane on which a shorter side is located is a narrow plane, a direction perpendicular to the minimum cross-section is an axial direction, an outer side is a side farther from another output electrode, and an inner side is a side closer to another output electrode; similarly, the outer side of the input pole is the side far away from the other input pole, and the inner side of the input pole is the side close to the other input pole; the outer side surface of the liquid cooling radiator and the outer side surface of the output pole are surfaces in the same direction, and the inner side surface of the liquid cooling radiator and the inner side surface of the output pole are surfaces in the same direction.

As shown in fig. 2, each of the MOS transistor assemblies includes one or more MOS transistors 512, an input sheet 511 connected to an input end of the MOS transistor 512, and an output sheet 513 connected to an output end of the MOS transistor, where the input sheet 511 is connected to the liquid-cooled heat sink, the output sheet 513 is mounted on the output electrode broad surface, and an output end of the MOS transistor 512 is connected to the output electrode broad surface through the output sheet 513.

It can be seen that the first MOS tube assembly 51 is electrically connected to the first output electrode 11 and the first liquid-cooled heat sink 31, the second MOS tube assembly 52 is electrically connected to the first output electrode 11 and the third liquid-cooled heat sink 33, the third MOS tube assembly 53 is electrically connected to the second output electrode 12 and the second liquid-cooled heat sink 32, and the fourth MOS tube assembly 54 is electrically connected to the second output electrode 12 and the fourth liquid-cooled heat sink 34.

As shown in fig. 1, the driving board includes a first driving board 41 disposed on the outer wide surface of the first output electrode 11 and electrically connected to the first MOS transistor assembly 51 and the third MOS transistor assembly 53, respectively, and a second driving board 42 disposed on the outer wide surface of the second output electrode 12 and electrically connected to the second MOS transistor assembly 52 and the fourth MOS transistor assembly 54, respectively.

The driving board is used for controlling the conduction of a plurality of MOS tube assemblies, and when the output of the first output electrode 11 is negative after the first MOS tube assembly 51 and the fourth MOS tube assembly 54 are directly conducted, the driving board drives the output of the second output electrode 12 to be positive after the second MOS tube assembly 52 and the third MOS tube assembly 53 are conducted; when the second MOS tube assembly 52 and the third MOS tube assembly 53 are directly conducted to the second output electrode 12 and the output is negative, the driving board drives the first MOS tube assembly 51 and the fourth MOS tube assembly 54 to conduct the output of the first output electrode 11 and the output is positive, so that output rectification and commutation are realized.

As shown in fig. 1 and 2, the first input electrode 21 and the second input electrode 22 are both of rectangular parallelepiped structures, and their wide surfaces are parallel and symmetrical up and down; the inner wide surface of the first input electrode 21 is fixed with the first liquid cooling radiator 31 and the second liquid cooling radiator 32 respectively, and the inner wide surface of the second input electrode 22 is fixed with the third liquid cooling radiator 33 and the fourth liquid cooling radiator 34 respectively; the outer broad surface of the first input pole 21 is fixed with the first output pole 11 (not shown in the drawing) of the power supply to be switched, and the outer broad surface of the second input pole 22 is fixed with the second output pole 12 (not shown in the drawing) of the power supply to be switched.

As shown in fig. 1 and 2, the first output electrode 11 and the second output electrode 12 are both of a rectangular parallelepiped structure, the wide surfaces of the first output electrode 11 and the second output electrode 12 are parallel and are bilaterally symmetrical, one end of the narrow surface of the first output electrode 11 and one end of the narrow surface of the second output electrode 12 are respectively fixed with the liquid cooling radiator, and the other end of the narrow surface of the first output electrode 11 and the other end of the narrow surface of. The first liquid-cooling radiator 31 and the third liquid-cooling radiator 33 are symmetrically arranged with the first output electrode 11, and the second liquid-cooling radiator 32 and the fourth liquid-cooling radiator 34 are symmetrically arranged with the second output electrode 12.

The liquid cooling radiator is the cuboid structure, and every liquid cooling radiator all has radiator input port 351, radiator delivery outlet 352, and the inside of cooling radiator is the cavity body, radiator input port 351 is used for inputing the coolant liquid, radiator delivery outlet 352 is used for exporting the coolant liquid. The first input pole 21 is directly connected with the first liquid cooling radiator 31 and the second liquid cooling radiator 32 through screws, and the second output pole 12 is also directly connected with the third liquid cooling radiator 33 and the fourth liquid cooling radiator 34 through screws.

First output utmost point 11 is connected through insulating piece and insulating screw and first liquid cooling radiator 31, third liquid cooling radiator 33, second output utmost point 12 is connected through insulating piece and insulating screw and second liquid cooling radiator 32, fourth liquid cooling radiator 34, all be provided with the insulating piece between first output utmost point 11 and first liquid cooling radiator 31 and third liquid cooling radiator 33 promptly, and second output utmost point 12 and second liquid cooling radiator 32, all be provided with the insulating piece between the fourth liquid cooling radiator 34, avoid first output utmost point 11, second output utmost point 12 is electrically conducted and is leaded to the short circuit.

First output utmost point 11, second output utmost point 12 all have output utmost point input port, output utmost point delivery outlet, and the inside of first output utmost point 11, second output utmost point 12 is the cavity, output utmost point input port, output utmost point delivery outlet and cavity intercommunication, the output utmost point input port is used for inputing the coolant liquid, the output utmost point delivery outlet is used for exporting the coolant liquid to improve device radiating efficiency.

The first output electrode 11 and the second output electrode 12 may be made of a metal material, such as aluminum alloy. The MOS tubes are respectively arranged on the outer side or the inner side wide surface of the first output electrode 11 and the second output electrode 12 (in this embodiment, the MOS tubes are arranged on the outer side wide surface), and the arrangement heights of the output electrode, the input electrode and the liquid cooling radiator are symmetrical, so that the structure is compact while the heat dissipation is improved, the conduction paths of the MOS tubes are the same, and the current uniformity is high. Each group of MOS tube assemblies is electrically connected with the liquid cooling radiator, the first output electrode 11 and the second output electrode 12, wherein the first output electrode 11 and the second output electrode 12 are provided with a hollow cavity, an output electrode input port and an output electrode output port, reliable heat dissipation of each MOS tube is guaranteed, and conversion efficiency is improved.

Each group of MOS tube assemblies are the same, the first input electrode 21 and the second input electrode 22 are structurally symmetrical, and the first output electrode 11 and the second output electrode 12 are structurally symmetrical, so that the whole structure is high in symmetry, small in size and convenient to flexibly arrange and install. The MOS tube can adopt IRF (S) S3004-7PPBF, IRF (S) S3107-7PPBF, T0-252 packaged 2N65 high-voltage power MOSFET and the like, and the MOS tube can also be replaced by IGBT.

The utility model discloses a through upper and lower input, left and right sides output, the MOS pipe subassembly is arranged in first output pole 11, the second output pole 12 outside, and the liquid cooling radiator sets up between input pole and output pole, and the high symmetry of whole device structure also enables overall structure compactness when improving the radiating efficiency, can carry out overall arrangement and installation in a flexible way; each group of MOS tube assemblies are arranged on the outer side of the output electrode, the conduction paths of the MOS tube assemblies are the same, and the current-sharing performance is high; the liquid cooling radiator is combined, the pins of the MOS tubes can radiate heat through cooling liquid, the conversion efficiency is improved, the structural universality is high, and the structure and the operation cost are reduced.

Example 2:

the present embodiment is further optimized based on the above embodiment 1, as shown in fig. 3 and 4, the plurality of MOS tube assemblies includes a first MOS tube assembly 51 disposed on the outer wide surface of the first output electrode 11 and the outer side surface of the first liquid-cooled heat sink 31, a second MOS tube assembly 52 disposed on the outer wide surface of the first output electrode 11 and the outer side surface of the third liquid-cooled heat sink 33, a third MOS tube assembly 53 disposed on the outer wide surface of the second output electrode 12 and the outer side surface of the second liquid-cooled heat sink 32, a fourth MOS tube assembly 54 disposed on the outer wide surface of the second output electrode 12 and the outer side surface of the fourth liquid-cooled heat sink 34, a fifth MOS tube assembly 55 disposed on the inner wide surface of the first output electrode 11 and the inner side surface of the first liquid-cooled heat sink 31, a sixth MOS tube assembly 56 disposed on the inner wide surface of the first output electrode 11 and the inner side surface of the third liquid-cooled heat sink 33, a sixth MOS tube assembly 56 disposed on, A seventh MOS tube assembly 57 on the inner side of the second liquid-cooled heat sink 32, and an eighth MOS tube assembly 58 on the inner side of the fourth liquid-cooled heat sink 34 and on the inner wide side of the second output electrode 12.

The first MOS tube assembly 51 and the fifth MOS tube assembly 55 are electrically connected to the first output electrode 11 and the first liquid-cooled heat sink 31, the third MOS tube assembly 53 and the seventh MOS tube assembly 57 are electrically connected to the second output electrode 12 and the second liquid-cooled heat sink 32, the second MOS tube assembly 52 and the sixth MOS tube assembly 56 are electrically connected to the first output electrode 11 and the third liquid-cooled heat sink 33, and the fourth MOS tube assembly 54 and the eighth MOS tube assembly 58 are electrically connected to the second output electrode 12 and the fourth liquid-cooled heat sink 34, respectively.

When the output of the first output electrode 11 is negative after the first MOS tube assembly 51, the fifth MOS tube assembly 55, the fourth MOS tube assembly 54 and the eighth MOS tube assembly 58 are directly turned on, the driving board drives the third MOS tube assembly 53, the seventh MOS tube assembly 57, the second MOS tube assembly 52 and the sixth MOS tube assembly 56 to be turned on, and then the output of the second output electrode 12 is positive; when the output of the second output electrode 12 is negative after the third MOS tube assembly 53, the seventh MOS tube assembly 57, the second MOS tube assembly 52 and the sixth MOS tube assembly 56 are directly turned on, the driving board drives the first MOS tube assembly 51, the fifth MOS tube assembly 55, the fourth MOS tube assembly 54 and the eighth MOS tube assembly to turn on, and then the output of the first output electrode 11 is positive, thereby realizing output rectification and commutation.

For a module with higher output current, the MOS tube assemblies are directly added on the inner sides of the wide surfaces of the first output electrode 11 and the second output electrode 12, so that the length of the device is not increased or the volume of the device is not increased while the number of the MOS tubes is increased.

Other parts of the embodiment are the same as those of the above embodiment, and thus are not described again.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A reversing device, characterized in that: including a plurality of MOS pipe subassemblies, input pole, output pole, liquid cooling radiator, wherein:

the first liquid cooling radiator is respectively connected with the inner wide surface of the first input pole and the inner narrow surface of the first output pole, the second liquid cooling radiator is respectively connected with the inner wide surface of the first input pole and the inner narrow surface of the second output pole, the third liquid cooling radiator is respectively connected with the inner wide surface of the second input pole and the inner narrow surface of the first output pole, and the fourth liquid cooling radiator is respectively connected with the inner wide surface of the second input pole and the inner narrow surface of the second input pole; the output electrode is connected with the liquid cooling radiator in an insulating way;

the MOS tube assemblies comprise a first MOS tube assembly arranged on the outer side wide surface of the first output pole and the outer surface of the first liquid cooling radiator, a second MOS tube assembly arranged on the outer side wide surface of the first output pole and the outer side surface of the third liquid cooling radiator, a third MOS tube assembly arranged on the outer side wide surface of the second output pole and the outer side surface of the second liquid cooling radiator, and a fourth MOS tube assembly arranged on the outer side wide surface of the second output pole and the outer side surface of the fourth liquid cooling radiator;

every MOS pipe subassembly includes one or more MOS pipe, is connected to the input piece of MOS pipe input end, input piece is connected to on the liquid cooling radiator, MOS pipe output end is connected to the extremely broad face of output.

2. A reversing device according to claim 1, characterized in that: each MOS tube assembly further comprises an output piece connected to the output end of the MOS tube, and the output piece is mounted on the output extremely wide surface.

3. A reversing device according to claim 1, characterized in that: the driving board is used for controlling the conduction of the plurality of MOS tube assemblies, and when the first output electrode output is negative after the first MOS tube assembly and the fourth MOS tube assembly are directly conducted, the driving board drives the second MOS tube assembly and the third MOS tube assembly to be positive after the second output electrode output is positive;

when the second output electrode output is negative after the second MOS tube component and the third MOS tube component are directly conducted, the drive board drives the first MOS tube component and the fourth MOS tube component to be conducted, and then the first output electrode output is positive.

4. A reversing device according to claim 3, characterized in that: the drive board comprises a first drive board which is arranged on the wide surface of the outer side of the first output electrode and is electrically connected with the first MOS tube assembly and the third MOS tube assembly respectively, and a second drive board which is arranged on the wide surface of the outer side of the second output electrode and is electrically connected with the second MOS tube assembly and the fourth MOS tube assembly respectively.

5. A reversing device according to claim 1, characterized in that: the liquid cooling radiator is the cuboid structure, every the liquid cooling radiator all has radiator input port, radiator delivery outlet, and the inside of liquid cooling radiator is the cavity body, the radiator input port is used for inputing the coolant liquid, the radiator delivery outlet is used for exporting the coolant liquid.

6. A reversing device according to claim 5, wherein: the first input pole is directly connected with the first liquid cooling radiator and the second liquid cooling radiator through screws, and the second input pole is directly connected with the third liquid cooling radiator and the fourth liquid cooling radiator through screws;

the first output pole is connected with the first liquid cooling radiator and the third liquid cooling radiator through insulating sheets and insulating screws, and the second output pole is connected with the second liquid cooling radiator and the fourth liquid cooling radiator through insulating sheets and insulating screws.

7. A reversing device according to claim 6, wherein: the first output pole and the second output pole are both provided with an output pole input port and an output pole output port, hollow cavities are arranged inside the first output pole and the second output pole, and the output pole input port and the output pole output port are communicated with the hollow cavities; the output electrode input port is used for inputting cooling liquid, and the output electrode output port is used for outputting the cooling liquid.

8. A reversing device according to claim 1, characterized in that: the MOS tube assemblies further comprise a fifth MOS tube assembly arranged on the inner side wide face of the first output pole and the inner side face of the first liquid cooling radiator, a sixth MOS tube assembly arranged on the inner side wide face of the first output pole and the inner side face of the third liquid cooling radiator, a seventh MOS tube assembly arranged on the inner side wide face of the second output pole and the inner side face of the second liquid cooling radiator, and an eighth MOS tube assembly arranged on the inner side wide face of the second output pole and the inner side face of the fourth liquid cooling radiator.

9. A reversing device according to claim 8, wherein: the first MOS tube component, the fifth MOS tube component, the fourth MOS tube component and the eighth MOS tube component are simultaneously conducted, and the third MOS tube component, the seventh MOS tube component, the second MOS tube component and the sixth MOS tube component are simultaneously conducted.

10. A reversing device according to any one of claims 2-9, characterized in that: the MOS tube can also be replaced by an IGBT.