阅读说明：本技术 双面水冷功率模块及组合式双面水冷功率模块 (Double-sided water-cooling power module and combined double-sided water-cooling power module ) 是由 夏吉夫 王官山 王霄驰 于 2021-09-29 设计创作，主要内容包括：一种双面水冷功率模块及组合式双面水冷功率模块,包括内设冷却水道一的电极板一、由下至上设置在电极板一上的绝缘底座、功率芯片、电极板二、压垫组件和绝缘外壳,其特征是：在所述电极板二内设有冷却水道二,所述冷却水道二的进、出口裸露在绝缘外壳外形成水道接口,通过水道接口使相邻二个双面水冷功率模块的电极板二的冷却水道密封连接,所述电极板二表面对应水道接口部位为相邻二个双面水冷功率模块的电极板二的电连接接触面,所述电极板1的冷却水道一的进、出口位于电极板一底面。本发明将水路和电路合二为一,结构紧凑、体积小,节省材料,根据使用要求可以任意组合,便于维修和更换,方便线路连接。(The utility model provides a two-sided water-cooling power module of two-sided water-cooling power module and combination formula, establishes electrode plate one of cooling water course one in including, by lower supreme insulating base, power chip, electrode plate two, pressure pad subassembly and the insulating casing of setting on electrode plate one, characterized by: the second electrode plate is internally provided with a second cooling water channel, the inlet and the outlet of the second cooling water channel are exposed outside the insulating shell to form a water channel interface, the cooling water channel of the second electrode plate of two adjacent double-sided water-cooling power modules is hermetically connected through the water channel interface, the corresponding water channel interface part on the two surfaces of the electrode plate is an electric connection contact surface of the second electrode plate of two adjacent double-sided water-cooling power modules, and the inlet and the outlet of the first cooling water channel of the electrode plate 1 are positioned on the bottom surface of the electrode plate. The invention combines the water path and the circuit into a whole, has compact structure, small volume and material saving, can be combined at will according to the use requirement, is convenient for maintenance and replacement and is convenient for line connection.)

1. Two-sided water-cooling power module establishes electrode plate one, by lower supreme insulating base, power chip, electrode plate two, pressure pad subassembly and the insulating casing of setting on electrode plate one in including, characterized by: the second electrode plate is internally provided with a second cooling water channel, the inlet and the outlet of the second cooling water channel are exposed outside the insulating shell to form a water channel interface, the cooling water channel of the second electrode plate of two adjacent double-sided water-cooling power modules is hermetically connected through the water channel interface, the corresponding water channel interface part on the two surfaces of the electrode plate is an electric connection contact surface of the second electrode plate of two adjacent double-sided water-cooling power modules, and the inlet and the outlet of the first cooling water channel of the electrode plate 1 are positioned on the bottom surface of the electrode plate.

2. The double-sided water-cooled power module of claim 1, wherein: and the inlet and the outlet of the second cooling water channel are positioned on the side end face of the second electrode plate.

3. The double-sided water-cooled power module according to claim 1 or 2, wherein: and the inlet and the outlet of the second cooling water channel protrude out of the insulating shell.

4. The double-sided water-cooled power module according to claim 1 or 2, wherein: and an embedded groove is formed in the inlet or the outlet of the second cooling water channel.

5. The double-sided water-cooled power module of claim 1, wherein: the power chip is a thyristor or a rectifier tube.

6. Modular two-sided water-cooling power module, including the insulation board, characterized by: the double-sided water cooling module is characterized in that at least two double-sided water cooling modules according to claim 1 are arranged on the upper surface of the insulating plate, two equipotential and adjacent electrode plates I are electrically connected and connected with a water channel through a detachable water and electricity connecting piece I with a communicated water channel arranged inside, the electrode plates I are hermetically connected with the water and electricity connecting piece I at a position corresponding to the cooling water channel, and the water and electricity connecting piece I penetrates out of the lower surface of the insulating plate; the two adjacent electrode plates II are directly butted in a detachable mode or are butted in two places through detachable hydroelectric connecting pieces internally provided with communicated water paths, so that the two butted electrode plates II are electrically connected and connected with a water channel, and the first hydroelectric connecting piece and the second hydroelectric connecting piece are respectively a hydroelectric connecting block or a hydroelectric connecting pipe made of conductive materials.

7. The modular, double-sided water-cooled power module of claim 6, further comprising: the first hydroelectric connecting piece is a hydroelectric connecting block, the first electrode plate is connected with the butt joint face of the first hydroelectric connecting piece through a fastening bolt, the butt joint faces of the two directly butted electrode plates or the butt joint faces of the two indirectly butted electrode plates are connected with the butt joint face of the corresponding second hydroelectric connecting piece through a fastening bolt, and the second hydroelectric connecting piece is a hydroelectric connecting block.

8. The modular, double-sided water-cooled power module of claim 7, further comprising: and an embedding groove is also formed in the position, corresponding to the cooling water channel, of the butt joint surface of the first electrode plate and the first hydroelectric connecting piece, and a sealing rubber ring is embedded in the embedding groove.

9. The modular, double-sided water-cooled power module of claim 6, further comprising: the double-sided water-cooling power module is characterized in that at least one double-sided water-cooling power module as claimed in claim 1 is additionally arranged on the upper surface of the insulating plate, the potentials of a first electrode plate and/or a second electrode plate in the additionally arranged double-sided water-cooling power module and an adjacent and corresponding equipotential electrode plate are unequal, a detachable waterway connecting piece made of insulating materials and internally provided with a communicated waterway is arranged between the electrode plate of the additionally arranged double-sided water-cooling power module and the adjacent equipotential electrode plate to realize waterway communication, and the waterway connecting piece is an insulating connecting piece or an insulating water pipe; and the electrode plates of the additionally arranged double-sided water-cooling power module and the electrode plates which are adjacent to the electrode plates and have the same potential realize waterway communication and equipotential electric connection through the corresponding hydroelectric connecting piece I or the corresponding hydroelectric connecting piece II.

10. The combined double-sided water-cooled power module as claimed in claim 6 or 7, wherein: the first hydroelectric connecting piece is installed on the bottom surface of the first electrode plate and is bridged between the first electrode plate and the adjacent first electrode plate.

Technical Field

The invention relates to the field of power modules, in particular to a double-sided water-cooling power module and a combined double-sided water-cooling power module.

Background

The high power semiconductor device module has high power, high power consumption and serious heat generation, so that the module must be mounted on a specially designed radiator in practical use. The temperature of the device is reduced by heat dissipation of the radiator, and the junction temperature of the power semiconductor device is ensured to be in an allowable range. The vertical double-sided water cooling power semiconductor device module has the characteristics of convenience in use and installation, compact structure, space saving, cost reduction and good heat dissipation effect, and can improve the power of the semiconductor device module. However, because the two tube core components are integrated, the arrangement of the water pipe and the electrode is complex, and the installation process is repeatedly operated, so that the installation and the maintenance are inconvenient; two tube core assemblies are connected through a copper bar, and if one tube core breaks down, the whole module needs to be replaced, so that the maintenance cost is high.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a double-sided water-cooling power module and a combined double-sided water-cooling power module.

The technical solution of the invention is as follows:

a double-sided water-cooling power module comprises a first electrode plate with a first cooling water channel arranged therein, an insulating base arranged on the first electrode plate from bottom to top, a power chip, a second electrode plate, a pressure pad assembly and an insulating shell, and is characterized in that: the second electrode plate is internally provided with a second cooling water channel, the inlet and the outlet of the second cooling water channel are exposed outside the insulating shell to form a water channel interface, the cooling water channel of the second electrode plate of two adjacent double-sided water-cooling power modules is hermetically connected through the water channel interface, the corresponding water channel interface part on the two surfaces of the electrode plate is an electric connection contact surface of the second electrode plate of two adjacent double-sided water-cooling power modules, and the inlet and the outlet of the first cooling water channel of the electrode plate 1 are positioned on the bottom surface of the electrode plate.

Further, the inlet and the outlet of the second cooling water channel are positioned on the side end face of the second electrode plate.

Furthermore, an inlet and an outlet of the second cooling water channel protrude out of the insulating shell.

Furthermore, an embedded groove is formed in the position of an inlet and/or an outlet of the second cooling water channel.

Further, the power chip is a thyristor or a rectifier tube.

The utility model provides a modular two-sided water-cooling power module, includes the insulation board, its special character is: the two double-sided water cooling modules are arranged on the insulating plate, two equipotential adjacent electrode plates I are electrically connected and connected with a water channel through a detachable water and electricity connecting piece I which is internally provided with a communicating water channel, the electrode plates I are hermetically connected with the water and electricity connecting piece I at a position corresponding to the cooling water channel, and the water and electricity connecting piece I penetrates out of the lower surface of the insulating plate; the two adjacent equipotential electrode plates II are directly butted in a detachable mode or are butted in two places through detachable hydroelectric connecting pieces with built-in communicating water paths, so that the two butted electrode plates II are electrically connected and connected with a water channel, a water nozzle I and a water nozzle II are respectively arranged at the inlet and the outlet of the communicated cooling water channel I and the cooling water channel II, and the hydroelectric connecting piece I and the hydroelectric connecting piece II are respectively a hydroelectric connecting block or a hydroelectric connecting pipe made of conductive materials;

furthermore, the first hydroelectric connecting piece is a hydroelectric connecting block, the first electrode plate is connected with the butt joint face of the first hydroelectric connecting piece through a fastening bolt, the butt joint faces of the two directly butted electrode plates or the butt joint faces of the two indirectly butted electrode plates are connected with the butt joint faces of the corresponding second hydroelectric connecting piece through a fastening bolt, and the second hydroelectric connecting piece is a hydroelectric connecting block.

Furthermore, an embedding groove is also formed in the position, corresponding to the cooling water channel, of the butt joint surface of the first electrode plate and the first hydroelectric connecting piece, and a sealing rubber ring is embedded in the embedding groove.

Further, at least one double-sided water-cooling power module according to claim 1 is additionally arranged on the upper surface of the insulating plate, the electric potentials of a first electrode plate and/or a second electrode plate in the additionally arranged double-sided water-cooling power module and an adjacent and corresponding equipotential electrode plate are unequal, a detachable waterway connecting piece made of insulating materials and internally provided with a communicated waterway is arranged between the electrode plate of the additionally arranged double-sided water-cooling power module and the adjacent equipotential electrode plate to realize waterway communication, and the waterway connecting piece is an insulating connecting piece or an insulating water pipe; and the electrode plates of the additionally arranged double-sided water-cooling power module and the electrode plates which are adjacent to the electrode plates and have the same potential realize waterway communication and equipotential electric connection through the corresponding hydroelectric connecting piece I or the corresponding hydroelectric connecting piece II.

Furthermore, the first hydroelectric connecting piece is arranged on the bottom surface of the first electrode plate and is bridged with the first two adjacent electrode plates.

The invention has the beneficial effects that: the two adjacent electrode plates are directly butted or are butted through the two hydroelectric connecting pieces, so that the water path and the circuit are integrated, the structure is compact, the size is small, the material is saved, the production cost is reduced, and the hydroelectric connecting piece is made of copper, aluminum, copper-aluminum composite and other metal materials. Can be combined at will according to the use requirement, is convenient for maintenance and replacement, and reduces the maintenance and use cost. The sealing performance is good, and the connection is convenient. The power chip can be arranged with the anode or the cathode on the top, so that the circuit connection is convenient.

Drawings

FIG. 1 is an exploded view of a double-sided water-cooled power module according to example 1;

FIG. 2 is a schematic structural view of a second cooling water passage of the second electrode plate in embodiment 1;

FIG. 3 is a schematic structural diagram of a combined double-sided water-cooled power module according to embodiment 2;

FIG. 4 is a bottom view of FIG. 3;

FIG. 5 is a schematic view of a connecting structure of cooling water passages of the first electrode plate in embodiment 2;

FIG. 6 is a schematic view of a connection structure between a first water electrical connector and an electrode plate in example 2;

FIG. 7 is a schematic view of a direct butt joint structure of a second electrode plate in example 2;

FIG. 8 is a schematic circuit diagram of a combined double-sided water-cooled power module according to embodiment 2;

FIG. 9 is a schematic view showing the structure of the second hydroelectric connection element and the connection between the second hydroelectric connection element and the adjacent second electrode plate in example 3;

fig. 10 is a schematic structural diagram of a combined double-sided water-cooling power module of embodiment 4;

FIG. 11 is a rear view of FIG. 10;

FIG. 12 is a schematic circuit diagram of a combined double-sided water-cooled power module according to embodiment 4;

fig. 13 is a schematic circuit diagram of the double-sided water-cooled power module 2 as an ac switch;

fig. 14 is a schematic circuit diagram of the double-sided water-cooled power module 2 as a two-phase rectifier bridge.

In the figure: the water cooling device comprises an insulating plate-1, a double-sided water cooling module-2, an output electrode connector-3, a water and electricity connector II-4, a water nozzle II-5, a water nozzle I-6, an input electrode connector-7, a water and electricity connector I-8, a fastening bolt-9, a sealing rubber ring-10, a water path connector-11, a water and electricity connecting pipe-12, a water nozzle I-connector base-13, an insulating base-201, an insulating shell-202, an elastic pad-203, an insulating pad-204, a flat pad-205, a power chip-206, a weight-207, a sleeve-208, a fastening screw-209, a long bolt-210, an electrode plate I-211, an electrode plate II-212, a cooling water channel I-213 and a cooling water channel II-214.

Detailed Description

Example 1

As shown in fig. 1 and fig. 2, the double-sided water-cooled power module includes an electrode plate 211, an insulating base 201 disposed on the electrode plate one 211 from bottom to top, a power chip 206, an electrode plate two 212, a pressure pad assembly, and an insulating housing 202. The pressure pad subassembly includes insulating pad 204, flat pad 205, bullet pad 203 and weight 207, and the weight 207 is fastened on electrode plate one 211 through the stay bolt 210 that the cover was established on sleeve 208, and insulating housing 202 passes through fastening screw 209 to be fixed on clamp plate 207, power chip 206 is thyristor (or rectifier tube), is equipped with cooling water course one 213 and cooling water course two 214 in electrode plate one 211 and electrode plate two 212 respectively, the income, the export of cooling water course two 214 are located on the side end face of electrode plate two 212 and expose and outstanding insulating housing 202 form the water course interface, make the cooling water course sealing connection of electrode plate two 212 of two adjacent two-sided water-cooling power modules through the water course interface, electrode plate two 212 surfaces correspond the electric connection contact surface of water course interface position for electrode plate two of two adjacent two-sided water-cooling power modules, the income of cooling water course one of electrode plate 1, The outlet is located on the bottom surface of the first electrode plate, and the inlet and the outlet of the second cooling water channel 214 are located on the side end surface of the second electrode plate 212 and protrude out of the insulating shell 202. And the inlet and the outlet of the second cooling water channel 214, which are positioned on the same side of the second electrode plate, are provided with embedded grooves 215.

Example 2

As shown in fig. 3 to 7, the combined double-sided water-cooling power module comprises six double-sided water-cooling modules 2 as described above, the six double-sided water-cooling modules 2 are fixed on an insulating plate 1 through fastening bolts, the six electrode plates (211) are divided into three groups, the two electrode plates in each group are at equal potentials, the equal potentials are respectively connected between the two adjacent electrode plates (211) through fastening bolts 9, a first hydropower connecting piece (8) with a water channel is arranged in the bridging surface of the first hydropower connecting piece (8) and the first electrode plate (211), the first hydropower connecting piece (8) is a hydropower connecting piece (or a hydropower connecting pipe) made of a conductive material, the first hydropower connecting piece (8) penetrates out from the back of the insulating plate 1, embedded grooves are arranged on the one side of the first hydropower connecting piece (8) and the bridging surface of the first electrode plates (211) and correspond to a first cooling water channel (213) inlet and outlet, sealing rubber rings (10) are embedded in the embedded grooves, and the water channel port of the first hydropower connecting piece (8) and the cooling water channel (214) of the first electrode plates (211) are embedded in the embedded grooves, The outlet is positioned on the bridging surface of the hydroelectric connecting piece I8 and the electrode plate I211 and is hermetically connected with each other. Equipotential electric connection and water path connection between two adjacent equipotential electrode plates I211 are realized through a hydroelectric connecting piece I8, and an input electrode joint 7 for connecting A, B, C three-phase electricity is arranged on the surface of the hydroelectric connecting piece I8. The first electrode plate 211 used for externally connecting the water nozzle in the embodiment is L-shaped, the protruding part of the first electrode plate 211 penetrates out of the back surface of the insulating plate 1, the inlet and the outlet of the first communicated cooling water channel are connected with the first water nozzle 6, cooling water passes through the water inlet water channel of the first cooling water channel 213 of the first electrode plate at the near end from the first water nozzle 6 at the water inlet end, the water inlet water channel of the first cooling water channel 213 of the first electrode plate at the far end from the water and electricity connecting piece 8, the water outlet water channel of the first electrode plate 8 at the far end from the water and the water outlet water channel of the first cooling water channel 213 of the first electrode plate at the near end from the first water nozzle 6 at the water outlet end.

The second electrode plates 212 in the combined double-sided water-cooling power module are divided into two groups, the second electrode plates in each group are at the second equipotential, and the second electrode plates 212 in each group at the second equipotential and adjacent two electrode plates are directly butted through fastening bolts 9 to realize electric connection and water path communication. The sealing rubber ring 10 is also embedded in the embedding groove 215. And a water nozzle II 5 is arranged at the inlet and outlet of the communicated cooling water channel II 214, and cooling water sequentially passes through the cooling water channel II 214 of the equipotential electrode plate II 212 from the water nozzle II 5 at the water inlet end and flows out through the water nozzle II 5 at the water outlet end. And an output electrode joint 3 is arranged on the two groups of equipotential electrode plates I211 and is used for outputting direct current.

The combined double-sided water-cooling power module is used as a three-phase rectifier bridge (thyristor VT1-VT6), and the circuit structure of the combined double-sided water-cooling power module is shown in FIG. 8.

EXAMPLE III

As shown in fig. 9, two adjacent electrode plates 212 are in indirect butt joint through a hydroelectric connection piece II 4, and the hydroelectric connection piece II 4 is connected with the adjacent electrode plates 212 through fastening bolts, so that the electric connection and the water path communication of the equipotential electrode plates II are realized. And a sealing rubber ring is arranged on the butt joint surface of the hydroelectric connecting piece II 4 and the adjacent electrode plate II 212 corresponding to the position of the cooling water channel I213, and the rest of the structure is the same as that of the embodiment 1.

Example four

As shown in fig. 10 and 11, a double-sided water-cooled power module according to embodiment 1 is further disposed on the insulating plate 1, the double-sided water-cooled power module serves as a freewheeling diode, a first electrode plate in the double-sided water-cooled power module serving as the freewheeling diode is equal in potential to a first equipotential electrode plate 211, and the first electrode plate and the first equipotential electrode plate are electrically connected and communicated with a water channel through a conductive water pipe 12. The second electrode plate in the double-sided water-cooling power module as the freewheeling diode and the second electrode plate 212 adjacent to the second electrode plate are different in potential, and the detachable waterway connecting piece 11 (or an insulating water pipe) made of insulating materials is connected between the second electrode plate and the second electrode plate 212 through a fastening bolt to realize waterway communication. The waterway connector 11 has the same structure as the second hydroelectric connector 4. The rest of the structure is the same as that of the embodiment 2, the combined double-sided water-cooling power module is used as a three-phase alternating-current switch (thyristors VT1-VT6) with a follow current tube VT7, and the circuit structure is shown in FIG. 12.

EXAMPLE five

The double-sided water-cooling power module 2 has two thyristors (VT 1 and VT2, respectively) and is used as an alternating current switch, as shown in fig. 13; or four in total (thyristors VT1, VT2, VT3, and VT4, respectively) and as a two-phase rectifier bridge (A, B in), as shown in fig. 14; or a single-phase inverter loop (A, B out).