High-power water-cooling power unit

Abstract

The invention provides a high-power water-cooling power unit, and belongs to the technical field of high-voltage electrics. Comprising a cuboid frame, a drive board mainboard fixed on the side wall of one side of the cuboid frame, a water-cooling substrate fixed on the side wall of the other side of the cuboid frame, and an IGBT fixed on the water-cooling substrate. One end of the composite busbar is electrically connected with the IGBT, and the other end of the composite busbar is connected with an electrical system interface; and the insulating part is fixed at the rear end of the cuboid frame. The composite busbar penetrates through the insulating part assembly and is connected with the electrical system interface; the water cooling substrate is provided with a water cooling system interface; the water-cooling system interface is positioned at the front end of the high-power water-cooling unit; the drive board main board comprises a drive board main board; the drive board mainboard is provided with a power interface located at the front end of the high-power water cooling unit and a drive board mainboard communication interface located at the upper portion of the high-power water cooling unit. And rapid plugging of the high-power water-cooling power unit and rapid replacement of the drive board mainboard are realized.

Description

Technical Field

[0001] The present invention relates to the field of high voltage electrical technology, and in particular to a high power water cooling power unit. Background Art

[0002] In the converter system of high-power AC transmission electric locomotives or high-speed EMUs, the electrical connection between the high-power water-cooled power unit and the converter cabinet that constitute the main circuit includes multiple docking interfaces such as high-voltage DC electrical interface, high-voltage AC electrical interface, low-voltage control signal interface, cooling system interface, etc. Due to factors such as the structural layout, external dimensions and interface size restrictions of the converter cabinet, when the high-power water-cooled power unit is pushed into the converter cabinet for installation, due to the small installation space and large depth, the installation tools often cannot reach the interface position. Sometimes, in order to ensure the convenience of interface installation, most of the interfaces can only be placed in a position that is convenient for manual operation at the front end. Multiple interfaces are gathered in the same position, which often causes many problems such as high and low voltage electromagnetic interference, too small electrical clearance and component interference. This not only increases the complexity of the structural design of the high-power water-cooled power unit and the converter cabinet, and increases the design and labor costs, but also increases the maintenance time because the interface tightening between the converter and the power module requires manual operation.

[0003] Therefore, there is a need for a converter high-power water-cooled power unit with reasonable electrical structure layout, convenient installation and maintenance, and high versatility. Summary of the invention

[0004] In view of this, the present invention provides

[0005] To this end, the present invention provides the following technical solutions:

[0006] A high-power water-cooling power unit, comprising:

[0007] A rectangular parallelepiped frame, a driving board mainboard fixed on one side wall of the rectangular parallelepiped frame, a water-cooling base plate fixed on the other side wall of the rectangular parallelepiped frame, an IGBT fixed on the water-cooling base plate, a composite busbar with one end electrically connected to the IGBT and the other end connected to the electrical system interface, and an insulating member fixed to the rear end of the rectangular parallelepiped frame; the composite busbar passes through the insulating member to be connected to the electrical system interface;

[0008] The water cooling substrate is provided with a water cooling system interface; the water cooling system interface is located at the front end of the high-power water cooling unit;

[0009] The driving board mainboard comprises: a driving board mainboard; the driving board mainboard is provided with a driving board mainboard power interface located at the front end of the high-power water cooling unit and a driving board mainboard communication interface located at the upper part of the high-power water cooling unit;

[0010] The IGBT3 communicates with the driver board main board via the IGBT communication interface on the IGBT sub-board; the IGBT communication interface is located on the upper part of the high-power water cooling unit.

[0011] Furthermore, the signal harness led out from the IGBT communication interface is connected to the driver board mainboard communication interface through a plurality of wire binding holes on the upper portion of the rectangular parallelepiped frame.

[0012] Furthermore, the driver board mainboard composition also includes:

[0013] Bottom plate, driver board, mainboard mounting plate and protective cover plate;

[0014] The driving board mainboard is fixed to the driving board mainboard mounting plate by bolts;

[0015] A protective cover plate is provided on the driving board mainboard;

[0016] The drive board mainboard mounting plate is fixed to the bottom plate by drive board mainboard mounting plate bolts and bottom plate guide grooves;

[0017] The bottom plate is mounted on the side wall of the rectangular parallelepiped frame;

[0018] The drive board mainboard mounting plate bolts are located at the front end of the high-power water-cooling power unit.

[0019] Further, including:

[0020] a first insulating member and a second insulating member;

[0021] The first insulating member and the second insulating member both have a hollow area in the middle that matches the size of the composite busbar;

[0022] The rib plate of the second insulating member is provided with a plurality of bolt through holes.

[0023] Furthermore, the electrical system interface comprises:

[0024] Several copper busbar connectors and electrical system interface mounting bolts;

[0025] One end of the copper bus connector is fixed to the second insulating member through an electrical system interface mounting bolt and is electrically connected to the composite busbar, and the other end is provided with a U-shaped slot.

[0026] Furthermore, the composite busbar passes through the hollow area between the first insulating member and the second insulating member in sequence; and the composite busbar and the second insulating member are fixed by bolts installed through the bolt through holes on the second insulating member using the electrical system interface.

[0027] Further, the first insulating member and the second insulating member are connected by bolts;

[0028] The first insulating member is provided with a first guide hole;

[0029] The second insulating member is provided with a second guide hole.

[0030] Furthermore, the rectangular parallelepiped frame further includes:

[0031] A handle is arranged at the front end of the rectangular parallelepiped frame, a first hole hub is arranged at the upper part of the front end of the rectangular parallelepiped frame, a second hole hub is arranged at the lower part of the front end of the rectangular parallelepiped frame, and a mounting bolt is arranged at the front end of the rectangular parallelepiped frame.

[0032] Furthermore, openings are provided on the side walls of both sides of the rectangular parallelepiped frame.

[0033] Advantages and positive effects of the present invention:

[0034] The high-power water-cooled power unit of the present invention is combined with the electrical system interface, insulating components and guide mechanism through a composite busbar, thereby reducing stray inductance, effectively suppressing IGBT turn-off overvoltage and making the converter run safely and reliably.

[0035] The drive board mainboard assembly in the present invention adopts a horizontal pull-out installation method, and the mainboard module in the drive board mainboard assembly can be disassembled at the open end of the high-power water-cooled power unit, which solves the problem that when the drive board mainboard fails and needs maintenance, it cannot be taken out separately, and all electrical and water-cooling interfaces and cabinet side interfaces can only be disassembled, and the entire high-power water-cooled power unit can be pulled out of the converter cabinet for disassembly and maintenance.

[0036] In the present invention, a wiring path is planned between the driver board main board and the IGBT sub-board through the wire binding holes, bypassing the composite busbar to avoid signal interference; and the structure layout is compact, which is convenient for installation and maintenance.

[0037] The composite busbar and the insulating component in the present invention form an integral whole, so that the positive and negative inputs and AC outputs of the inverter circuit are all placed at the rear end of the high-power water-cooled power unit; the separation of water and electricity is achieved to avoid interference with the front-end water-cooling pipeline, thereby avoiding the high-voltage electrical interface and the water-cooling system interface being in the narrow space on the same side of the high-power water-cooled power unit, resulting in residual liquid in the cooling pipeline splashing out when replacing the high-power water-cooled power unit or plugging in the water-cooling system interface pipeline, causing electrical short circuit, heat dissipation failure and other faults.

[0038] The present invention realizes the overall rapid installation and plugging of high-power water-cooled power units through the electrical system interface; and does not require connection through bolts and wires, which is convenient for inspection and maintenance. The use of composite busbars and reasonable planning of the wiring path of the drive signal harness solves the problem that the existing high-power water-cooled power unit IGBT and high-voltage AC and DC links are electrically connected by a single-layer copper plate and a single-layer insulating plate, which is stacked layer by layer, resulting in too many components and cumbersome production, installation and debugging. At the same time, the electrical system has too large stray inductance and poor anti-interference performance. It will be interfered in a strong electromagnetic environment, causing errors in sending and receiving signals.

[0039] The present invention is applicable to the integrated design of various circuits such as three-phase inverter and four-quadrant rectification, and can be widely promoted in the fields of high voltage electrical equipment and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0041] Figure 1 This is an overall structural diagram of a high-power water-cooling power unit in an embodiment of the present invention;

[0042] Figure 2 This is a schematic diagram of the components of the driver board mainboard in an embodiment of the present invention;

[0043] Figure 3 This is a schematic diagram of communication line wiring in an embodiment of the present invention;

[0044] Figure 4 This is a schematic diagram of the insulating component composition in this embodiment;

[0045] Figure 5 FIG. 1 is a schematic diagram of an IGBT in this embodiment.

[0046] In the figure, 1, rectangular frame; 11, first hole hub; 12, second hole hub; 13, handle; 14, mounting bolt; 15, wire hole; 2, water cooling base plate; 21, water cooling system interface; 3, IGBT; 31, IGBT sub-board; 311, IGBT sub-board signal interface; 4, drive board main board composition; 41, bottom plate; 42, drive board main board mounting plate; 43, drive board main board; 44, protective cover plate; 421, drive board main board mounting bolt; 411, drive board main board Board mounting guide groove; 431, driver board mainboard signal interface; 432 driver board mainboard power interface; 5, composite busbar; 51, composite busbar mounting bolts; 6, insulating component composition; 61, first insulating component; 62, second insulating component; 611, first guide hole; 621, second guide hole; 622, bolt through hole; 7, electrical system interface; 71, positive copper busbar connector; 72, AC output copper busbar connector; 73, negative copper busbar connector; 74, electrical system interface mounting bolts. DETAILED DESCRIPTION

[0047] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0048] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0049] The present invention provides a high-power water-cooled power unit, which realizes the traction inverter circuit function of the traction auxiliary converter, and solves the problem that the installation, test and maintenance of the drive board mainboard are inconvenient under the current existing situation, and the high and low voltage electrical interface and the water cooling interface cannot realize the separation of water and electricity. Specifically, the present invention adopts a composite busbar for electrical connection, reduces the stray inductance, effectively suppresses the IGBT shutdown overvoltage, and at the same time, the electrical system interface and the composite busbar are cleverly combined at the rear end and cabinet side electrical interface of the high-power water-cooled power unit, which solves the problem of poor electrical performance, makes the converter run safely and reliably, and the structural layout is more compact. The linkage of the electrical system interface and the guide mechanism can realize the fast blind insertion of the high-power water-cooled power unit; the installation of the drive board mainboard adopts a pull-out solution, which cleverly solves the problem that the installation, test and maintenance of the IGBT drive board mainboard in the current existing technical solution are inconvenient, and the entire high-power water-cooled power unit needs to be removed from the cabinet for replacement; the wiring holes are used to solve the problem that the wiring harness between the drive board mainboard and the IGBT sub-board often crosses the high-voltage composite busbar, causing electromagnetic interference and control and feedback signal transmission errors.

[0050] like Figure 1-5 As shown, in this embodiment, the high-power water-cooling power unit includes:

[0051] Rectangular frame 1, first hole hub 11, second hole hub 12, handle 13, mounting bolt 14, wire tie hole 15, water-cooled base plate 2, water-cooled system interface 21, IGBT 3, IGBT sub-board 31, IGBT sub-board signal interface 311, drive board main board component 4, bottom plate 41, drive board main board mounting plate 42, drive board main board 43, protective cover plate 44, drive board main board mounting bolt 421, drive board main board mounting guide groove 411, drive board main board signal interface 431; drive board main board power interface 432; composite busbar 5, composite busbar mounting bolt 51, insulating component 6, first insulating component 61, second insulating component 62, first guide hole 611, second guide hole 621, bolt through hole 622, electrical system interface 7, positive copper busbar connector 71, AC output copper busbar connector 72, negative copper busbar connector 73, and electrical system interface mounting bolt 74.

[0052] A handle 13 made of a sheet metal bending part is provided at the front end of the rectangular parallelepiped frame 1, which is used for pushing and pulling the module on the guide rail when the module is installed as a whole; a first hole hub 11 and a second hole hub 12 are respectively provided at the upper and lower positions of the front end of the rectangular parallelepiped frame 1, and a plurality of mounting bolts 14 are provided around it;

[0053] The water-cooling substrate 2 is mounted on the side wall of the rectangular frame 1 by bolts; a water-cooling system interface 21 is provided on the water-cooling substrate 2 for realizing the circulation of cooling liquid; and the water-cooling system interface 21 is located at the front end of the rectangular frame 1.

[0054] The driving board and mainboard assembly 4 is installed on the other side wall of the rectangular parallelepiped frame 1 , and is located on the opposite side of the water-cooling base plate 2 .

[0055] like Figure 2 As shown, the driving board mainboard component 4 includes: a bottom plate 41, a driving board mounting plate 42, a driving board mainboard 43, and a protective cover plate 44;

[0056] The drive board mainboard 43 is fixed on the drive board mainboard mounting plate 42; the drive board mounting plate 42 is fixed on the base plate 41 through the drive board mainboard mounting bolts 421 and the drive board mainboard mounting guide grooves 411; the protective cover plate 44 is fixed on the drive board mainboard 43; the base plate 41 is installed on the side wall of the rectangular frame 1.

[0057] like Figure 5 As shown, the IGBT 3 is mounted on the water-cooled base plate 2 by bolts; an IGBT sub-plate 31 is provided on the IGBT 3 for signal transmission.

[0058] The driving board mainboard power interface 432 of the driving board mainboard 43 is located at the front end of the rectangular frame 1; the driving board mainboard signal interface 431 of the driving board mainboard 43 is at the upper part of the rectangular frame 1; it is convenient for operators to plug and unplug.

[0059] The signal harness of the IGBT sub-board 31 is arranged in a U-shaped pattern through the plurality of wire binding holes 15 on the upper part of the rectangular frame 1, and connected to the driver board main board signal interface 431 of the opposite driver board main board 43; this avoids the problem of electromagnetic interference caused by insufficient electrical clearance due to the low-voltage harness crossing the high-voltage composite busbar, resulting in control and feedback signal transmission errors. The wiring path is as follows Figure 3 Shown by the dashed line.

[0060] One end of the composite busbar 5 is mounted on the IGBT 3 via the composite busbar mounting bolts 51, and the other end is connected to the electrical system interface 7, which is used to lead the positive and negative input ends and the single-phase AC output end of the high-voltage circuit to the rear end of the high-power water-cooled power unit, thereby realizing water-electricity separation.

[0061] like Figure 4 As shown, the first insulating member 61 and the second insulating member 62 are installed between the rectangular frame 1 and the electrical system interface 7; two left-right symmetrical first guide holes 611 are opened at the lower part of the first insulating member 61; two left-right symmetrical second guide holes 621 are also set at the lower part of the second insulating member 62; they are used for positioning during the installation process.

[0062] The electrical system interface 7 includes: a plurality of copper busbar connectors;

[0063] In this embodiment, there are: a positive copper busbar connector 71, an AC output copper busbar connector 72, and a negative copper busbar connector 73; the second insulating member 62 is provided with a plurality of bolt through holes 622 on the rib plate portion for passing the electrical system interface installation bolts 74.

[0064] The other end of the composite busbar 5 passes through the first insulating member 61 and the second insulating member 62; it is connected to the second insulating member 62 and the positive copper busbar connector 71, the AC output copper busbar connector 72 and the negative copper busbar connector 73 of the electrical system interface 7 through the electrical system interface mounting bolt 74;

[0065] The insulating component assembly 6 increases the creepage distance between the composite busbar 5, the electrical system interface mounting bolts 74 and the rectangular parallelepiped frame 1, thereby ensuring a safe insulation distance between the composite busbar 5 and the rectangular parallelepiped frame 1 and meeting electrical design requirements.

[0066] One end of the copper busbar connector is fixed to the second insulating member 62 through the electrical system interface mounting bolt 74 and is electrically connected to the composite busbar 5, and the other end is provided with a U-shaped slot; it has the advantages of low resistance, low temperature rise, high current, and high plug-in and pull-out times. Through the cooperation with the first guide hole 611, the second guide hole 621 and the cabinet side guide pin, the overall rapid positioning and installation and plug-in functions of the water-cooled high-power water-cooled power unit are realized, and it does not need to be connected by bolts and wires, which is convenient for inspection and maintenance.

[0067] The insulating component 6 completes the fixation of the electrical system interface 7 and the high-power water-cooled power unit; the electrical connection is completed by plugging the electrical system interface 7 with the electrical interface on the cabinet side, realizing the design function of the entire high-power water-cooled power unit.

[0068] In this embodiment, preferably, thermal conductive silicone grease is applied to the bottom of the IGBT3;

[0069] In this embodiment, preferably, two IGBTs 3 are mounted on the water-cooled substrate 2 .

[0070] In this embodiment, as a preferred embodiment, the base plate 41 and the drive plate mounting plate 42 are made of epoxy resin products, and the protective cover plate 44 is made of organic glass.

[0071] In this embodiment, as a preference, the composite busbar 5 is composed of three layers of conductive copper bars and insulating materials filled between every two conductive copper bar layers. The surface of the composite busbar 5 is coated with an insulating PET film and edge-sealed to ensure the insulation and safety of the composite busbar 5.

[0072] The high-power water-cooled power unit in this embodiment is easy to install and disassemble. Specifically:

[0073] Because the electrical system interface requires a lot of force to connect and disconnect, during installation, the handle 13 at the front end of the rectangular frame 1 is used to guide the installation through the first guide hole 611 and the second guide hole 621 and the cabinet side guide pin; four mounting bolts 14 are tightened in sequence in a diagonal manner to drive the high-power water-cooled power unit to move as a whole into the cabinet, and finally the electrical interface is connected in place and the module is installed.

[0074] During disassembly, first loosen and remove the four mounting bolts 14 of the high-power water-cooled power unit, insert long bolts into the first hole hub 11 and the second hole hub 12, and screw in the bolts in the order of upper side and lower side. The front end of the bolt will hit the cabinet behind the mounting surface of the high-power water-cooled power unit, and the reaction force will cause the high-power water-cooled power unit to gradually move out of the cabinet as a whole, finally realizing electrical separation and module disassembly.

[0075] In this embodiment, the driver board mainboard is easy to install and disassemble and replace, specifically:

[0076] like Figure 3 As shown, during installation, first fix the base plate 41 on the rectangular frame 1 by four mounting bolts, and the drive board mounting plate 42, the drive board main board 43, and the protective cover plate 44 are installed in advance as a whole, and then pushed into the limit along the drive board main board mounting guide groove 411 of the base plate 41 against the mounting surface, and finally fixed to the base plate 41 by the drive board main board mounting bolts 421 on the drive board mounting plate 42.

[0077] During replacement, loosen the drive board mainboard mounting bolt 421 at the front end of the high-power water-cooled power unit, and pull the drive board mounting plate 42, the drive board mainboard 43, and the protective cover plate 44 out of the limit of the bottom plate 41 to achieve fast and efficient disassembly of the drive board mainboard 43.

[0078] To further save space, the two high-power water-cooled power units of the present invention may be integrated. Preferably, the IGBT 3 is fixed on both sides of the water-cooled substrate 2 in a mirror image, thereby saving space for the water-cooled substrate 2 .

[0079] In summary, the present invention has the advantages of water-electricity interface separation, high maintainability of IGBT driver board motherboard, and the electrical connection between the water-cooled power unit and the cabinet body is achieved through the combination of the composite busbar, the electrical system interface and the guide mechanism, so as to realize the efficient and fast installation and plugging of the water-cooled power unit. The present invention solves the problem that similar products need to disassemble the entire module to replace the driver board motherboard, saves the time for inspection and maintenance, and reduces the maintenance cost.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-power water-cooled power unit, characterized in that: include: A rectangular parallelepiped frame (1), a driving board mainboard component (4) fixed on a side wall of one side of the rectangular parallelepiped frame (1), a water-cooling base plate (2) fixed on the other side wall of the rectangular parallelepiped frame (1), an IGBT fixed on the water-cooling base plate (2), a composite busbar (5) having one end electrically connected to the IGBT (3) and the other end connected to an electrical system interface (7), and an insulating component (6) fixed on the rear end of the rectangular parallelepiped frame (1); the composite busbar (5) passes through the insulating component component (6) to be connected to the electrical system interface (7); The water cooling substrate (2) is provided with a water cooling system interface (21); the water cooling system interface (21) is located at the front end of the high-power water cooling unit; The driving board mainboard component (4) comprises: a driving board mainboard (43); the driving board mainboard (43) is provided with a driving board mainboard power interface (432) located at the front end of the high-power water cooling unit and a driving board mainboard communication interface (431) located at the upper part of the high-power water cooling unit; The IGBT (3) communicates with the driving board main board (43) via an IGBT communication interface (311) on the IGBT sub-board (31); the IGBT communication interface (311) is located at the upper part of the high-power water cooling unit.

2. A high-power water-cooled power unit according to claim 1, characterized in that: The signal wire harness led out from the IGBT communication interface (311) is connected to the driver board mainboard communication interface (431) through a plurality of wire binding holes (15) on the upper portion of the rectangular parallelepiped frame (1).

3. A high-power water-cooled power unit according to claim 1, characterized in that: The driving board mainboard component (4) also includes: A bottom plate (41), a drive board mainboard mounting plate (42) and a protective cover plate (44); The driving board mainboard (43) is fixed to the driving board mainboard mounting plate (42) by means of bolts; A protective cover plate (44) is provided on the driving plate main board (43); The driving board mainboard mounting plate (42) is fixed on the bottom plate (41) via driving board mainboard mounting plate bolts (421) and bottom plate guide grooves (411); The bottom plate (41) is mounted on the side wall of the rectangular parallelepiped frame (1); The drive board mainboard mounting plate bolts (421) are located at the front end of the high-power water-cooling power unit.

4. A high-power water-cooled power unit according to claim 1, characterized in that: The insulating component (6) comprises: A first insulating member (61) and a second insulating member (62); The first insulating member (61) and the second insulating member (62) both have a hollow area in the middle that matches the size of the composite busbar (5); A plurality of bolt through holes (622) are provided on the rib plate of the second insulating member (62).

5. A high-power water-cooled power unit according to claim 4, characterized in that: The electrical system interface (7) comprises: A number of copper busbar connectors and electrical system interface mounting bolts (74); One end of the copper bus connector is fixed to the second insulating member (62) through an electrical system interface mounting bolt (74) and is electrically connected to the composite busbar (5), and the other end is provided with a U-shaped slot.

6. A high-power water-cooled power unit according to claim 5, characterized in that: The composite busbar (5) passes through the hollow area between the first insulating member (61) and the second insulating member (62) in sequence; and the composite busbar (5) and the second insulating member (62) are fixed by passing bolts (74) through the bolt through holes (622) on the second insulating member (62) using an electrical system interface mounting bolt.

7. A high-power water-cooled power unit according to claim 4, characterized in that: The first insulating member (61) and the second insulating member (62) are connected by bolts; The first insulating member (61) is provided with a first guide hole (611); The second insulating member (62) is provided with a second guide hole (621).

8. A high-power water-cooled power unit according to claim 1, characterized in that: The rectangular parallelepiped frame (1) further comprises: A handle (13) is arranged at the front end of the rectangular parallelepiped frame (1), a first hole hub (11) is arranged at the upper part of the front end of the rectangular parallelepiped frame (1), a second hole hub (12) is arranged at the lower part of the front end of the rectangular parallelepiped frame (1), and a mounting bolt (14) is arranged at the front end of the rectangular parallelepiped frame (1).

9. A high-power water-cooled power unit according to claim 1, characterized in that: Openings are provided on the side walls of both sides of the rectangular parallelepiped frame (1).

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