Power module, power electronic device, and vehicle

Abstract

The utility model discloses a power module, power electronic equipment and a vehicle, the power module comprises a base plate, a power generation phase unit and a boost phase unit, the boost phase unit and the power generation phase unit are both arranged on the base plate, the cathode direct current end of the power generation phase unit is used for being electrically connected with the cathode direct current end of the boost phase unit, and the cathode direct current end of the boost phase unit is electrically connected with the power generation phase unit. And the positive direct-current end of the power generation phase unit is electrically connected with the positive direct-current end of the boosting phase unit. The power module provided by the embodiment of the utility model integrates the boosting phase functional block and the power generation phase functional block, the function richness of the power module is improved, and the power generation phase unit and the boosting phase unit are arranged on one bottom plate, so that the use quantity of heat dissipation equipment of a matched module can be effectively reduced, the power density of the power module is improved, and the power utilization rate of the power module is improved. The vehicle internal space is effectively saved, and the overall cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a power module, a power electronic device and a vehicle. Background Art

[0002] With the massive investment of automobile enterprises and the strong support of the state, power modules as the core hardware of new energy vehicle controllers are increasingly attracting the attention of automobile manufacturers. With the advancement and development of technology, higher requirements are placed on the performance of modules. The state has called for energy conservation and emission reduction, and formulated plans to reduce the energy consumption of automotive-grade product systems and improve product performance. This has put forward higher requirements for the miniaturization, lightweight and system efficiency improvement of module packaging as the core components of electric vehicles. At present, the internal structure of the drive power module used in the electronic control of new energy vehicles is usually a three-phase full-bridge structure.

[0003] In the prior art, a power module using a three-phase full-bridge structure can usually only realize a single driving function. In hybrid vehicles, it is also necessary to use it in conjunction with an additional power generation module, a boost module, and a power supply inductor for charging the vehicle battery. In addition, since there are gaps between the modules, a separate dedicated radiator needs to be provided for each module, which causes the overall electronic control equipment to occupy a larger space inside the vehicle. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the first purpose of the utility model is to propose a power module that integrates two functional blocks, a boost phase and a power generation phase, to improve the functional richness of the power module, and to set the power generation phase unit and the boost phase unit on a bottom plate, which can effectively reduce the number of heat dissipation devices used in the supporting modules, improve the power density of the power module, effectively save the internal space of the vehicle, and reduce the overall cost.

[0005] The second objective of the present invention is to provide a power electronic device.

[0006] The third objective of the present invention is to provide a vehicle.

[0007] In order to achieve the above-mentioned purpose, the power module proposed in the first aspect of the embodiment of the utility model includes: a base plate; a power generation phase unit; and a boost phase unit, wherein the boost phase unit and the power generation phase unit are both arranged on the base plate, the negative DC end of the power generation phase unit is electrically connected to the negative DC end of the boost phase unit, and the positive DC end of the power generation phase unit is electrically connected to the positive DC end of the boost phase.

[0008] According to the power module proposed in the embodiment of the utility model, the boost phase unit and the power generation phase unit are both arranged on the bottom plate, and the negative DC terminal and the positive DC terminal of the power generation phase unit are electrically connected to the negative DC terminal and the positive DC terminal of the boost phase unit respectively, so that the power module integrates the two functional blocks of the boost phase and the power generation phase. The power generation phase unit has power generation and charging functions, and the boost phase unit has a boost function, so that the power module has multiple functions such as power generation and boost at the same time. The power generation phase unit and the boost phase unit can be used in combination, and can replace multiple single functional modules used in the electric control, thereby improving the functional richness of the power module. In addition, the integration of the power generation phase unit and the boost phase unit on a bottom plate can also facilitate the subsequent design, effectively reducing the number of heat dissipation devices used in the supporting module, and is also conducive to improving the power density of the power module, effectively saving the internal space of the vehicle, and reducing the overall cost.

[0009] In some embodiments of the present invention, the power generation phase unit includes: a multi-phase bridge arm; and multiple power generation phase AC terminals, the AC ends of the multi-phase bridge arm correspond one-to-one to and are electrically connected to the multiple power generation phase AC terminals; at least one power generation phase positive DC terminal, at least one power generation phase positive DC terminal is electrically connected to the positive DC end of the multi-phase bridge arm; and at least one power generation phase negative DC terminal, at least one power generation phase negative DC terminal is electrically connected to the negative DC end of the multi-phase bridge arm.

[0010] In some embodiments of the present invention, the boost phase unit includes: an H half-bridge arm; two boost phase AC terminals, the AC end of the H half-bridge arm corresponds to and is electrically connected to the two boost phase AC terminals one by one; at least one boost phase positive DC terminal, at least one boost phase positive DC terminal is electrically connected to the positive DC end of the H half-bridge arm; and at least one boost phase negative DC terminal, at least one boost phase negative DC terminal is electrically connected to the negative DC end of the H half-bridge arm.

[0011] In some embodiments of the utility model, the multiple power generation phase AC terminals include a first power generation phase AC terminal, a second power generation phase AC terminal and a third power generation phase AC terminal, and the multi-phase bridge arm includes: a first phase bridge arm, the AC end of the first phase bridge arm is electrically connected to the first power generation phase AC terminal; a second phase bridge arm, the AC end of the second phase bridge arm is electrically connected to the second power generation phase AC terminal; and a third phase bridge arm, the AC end of the third phase bridge arm is electrically connected to the third power generation phase AC terminal; wherein the first phase bridge arm, the second phase bridge arm and the third phase bridge arm are located in the same On the charging substrate, the charging substrate is arranged on the bottom plate, the upper bridge arm of the first phase bridge arm, the upper bridge arm of the second phase bridge arm and the upper bridge arm of the third phase bridge arm include the positive DC end of the multi-phase bridge arm, and the positive DC end of the multi-phase bridge arm is used to be electrically connected to at least one positive DC terminal of the power generation phase, the lower bridge arm of the first phase bridge arm, the lower bridge arm of the second phase bridge arm and the lower bridge arm of the third phase bridge arm include the negative DC end of the multi-phase bridge arm, and the negative DC end of the multi-phase bridge arm is used to be electrically connected to at least one negative DC terminal of the power generation phase.

[0012] In some embodiments of the present invention, at least one of the positive DC terminals of the power generation phase includes a first positive DC terminal of the power generation phase, and the positive DC terminal of the first phase bridge arm, the positive DC terminal of the second phase bridge arm, and the positive DC terminal of the third phase bridge arm are all electrically connected to the first positive DC terminal of the power generation phase; at least one of the negative DC terminals of the power generation phase includes a first negative DC terminal of the power generation phase and a second negative DC terminal of the power generation phase, and the negative DC terminal of the first phase bridge arm, the negative DC terminal of the second phase bridge arm, and the negative DC terminal of the third phase bridge arm are all electrically connected to the first negative DC terminal of the power generation phase and the second negative DC terminal of the power generation phase.

[0013] In some embodiments of the present invention, the two boost phase AC terminals include a first boost phase AC terminal and a second boost phase AC terminal, and the H half-bridge arm includes: a first half-bridge arm, the first half-bridge arm is located on a first boost substrate, and the AC end of the first half-bridge arm is used to be electrically connected to the first boost phase AC terminal; and a second half-bridge arm, the second half-bridge arm is located on a second boost substrate, and the AC end of the second half-bridge arm is used to be electrically connected to the second boost phase AC terminal, wherein the first boost substrate and the second boost substrate are both arranged on the The bottom plate is provided with the first boost substrate between the charging substrate and the second boost substrate; wherein the upper bridge arm of the first half-bridge arm and the upper bridge arm of the second half-bridge arm include the positive DC end of the H half-bridge arm, and the positive DC end of the H half-bridge arm is used to be electrically connected to at least one positive DC terminal of the boost phase, and the lower bridge arm of the first half-bridge arm and the lower bridge arm of the first half-bridge arm include the negative DC end of the H half-bridge arm, and the negative DC end of the H half-bridge arm is used to be electrically connected to at least one negative DC terminal of the boost phase.

[0014] In some embodiments of the present invention, at least one of the boost phase positive DC terminals includes a first boost phase positive DC terminal and a second boost phase positive DC terminal, the positive DC end of the first half-bridge arm is connected to the first boost phase positive DC terminal, and the positive DC end of the second half-bridge arm is connected to the second boost phase positive DC terminal; at least one of the boost phase negative DC terminals includes a first boost phase negative DC terminal, and the negative DC end of the first half-bridge arm and the negative DC end of the second half-bridge arm are both electrically connected to the first boost phase negative DC terminal.

[0015] In some embodiments of the present invention, the plurality of power generation phase AC terminals include a first power generation phase AC terminal, a second power generation phase AC terminal, a third power generation phase AC terminal, a fourth power generation phase AC terminal, a fifth power generation phase AC terminal and a sixth power generation phase AC terminal, the at least one boost phase negative DC terminal includes a first power generation phase negative DC terminal and a second power generation phase negative DC terminal, the at least one power generation phase positive DC terminal includes a first power generation phase positive DC terminal and a second power generation phase positive DC terminal, the multi-phase bridge arm includes: a first phase bridge arm, the first phase bridge arm includes a first sub-bridge arm and a second sub-bridge arm, the first sub-bridge The AC end of the arm is used to be electrically connected to the first power generation phase AC terminal, and the AC end of the second sub-bridge arm is used to be electrically connected to the second power generation phase AC terminal; the second phase bridge arm, the second phase bridge arm includes a third sub-bridge arm and a fourth sub-bridge arm, the AC end of the third sub-bridge arm is used to be electrically connected to the third power generation phase AC terminal, and the AC end of the fourth sub-bridge arm is used to be electrically connected to the fourth power generation phase AC terminal; the third phase bridge arm, the third phase bridge arm includes a fifth sub-bridge arm and a sixth sub-bridge arm, the AC end of the fifth sub-bridge arm is used to be electrically connected to the fifth power generation phase AC terminal, and the AC end of the sixth sub-bridge arm is used to be electrically connected to the sixth power generation phase The first phase bridge arm and the second phase bridge arm are located on the first charging substrate, the third phase bridge arm is located on the second charging substrate, the first charging substrate and the second charging substrate are both arranged on the bottom plate, the upper bridge arm of the first sub-bridge arm, the upper bridge arm of the second sub-bridge arm, the upper bridge arm of the third sub-bridge arm and the upper bridge arm of the fourth sub-bridge arm include the first positive DC end of the multi-phase bridge arm, the first positive DC end of the multi-phase bridge arm is used to be electrically connected to the positive DC terminal of the first power generation phase, the upper bridge arm of the fifth sub-bridge arm and the upper bridge arm of the sixth sub-bridge arm include the second A positive DC end, the second positive DC end of the multi-phase bridge arm is used to be electrically connected to the positive DC terminal of the second power generation phase, the lower bridge arm of the first sub-bridge arm, the lower bridge arm of the second sub-bridge arm, the lower bridge arm of the third sub-bridge arm and the lower bridge arm of the fourth sub-bridge arm include the first negative DC end of the multi-phase bridge arm, the first negative DC end of the multi-phase bridge arm is used to be electrically connected to the negative DC terminal of the first power generation phase, the lower bridge arm of the fifth sub-bridge arm and the lower bridge arm of the sixth sub-bridge arm include the second negative DC end of the multi-phase bridge arm, and the second negative DC end of the multi-phase bridge arm is used to be electrically connected to the negative DC terminal of the second power generation phase.

[0016] In some embodiments of the present utility model, the two boost phase AC terminals include a first boost phase AC terminal and a second boost phase AC terminal, and the H half-bridge arm includes: a first half-bridge arm, the AC end of the first half-bridge arm is used to be electrically connected to the first boost phase AC terminal; a second half-bridge arm, the AC end of the second half-bridge arm is used to be electrically connected to the second boost phase AC terminal; wherein the first half-bridge arm and the second half-bridge arm are both located on the same boost substrate, and the boost substrate is arranged on the bottom plate, the upper bridge arm of the first half-bridge arm and the upper bridge arm of the second half-bridge arm include the positive DC end of the H half-bridge arm, and the positive DC end of the H half-bridge arm is used to be electrically connected to at least one of the boost phase positive DC terminals, the lower bridge arm of the first half-bridge arm and the lower bridge arm of the second half-bridge arm include the negative DC end of the H half-bridge arm, and the negative DC end of the H half-bridge arm is used to be electrically connected to at least one of the boost phase negative DC terminals, and the boost substrate is arranged on one side of the charging substrate.

[0017] In some embodiments of the present invention, the two boost phase AC terminals include a first boost phase AC terminal and a second boost phase AC terminal, and the H half-bridge arm includes: a first half-bridge arm, the AC end of the first half-bridge arm is used to be electrically connected to the first boost phase AC terminal; a second half-bridge arm, the AC end of the second half-bridge arm is used to be electrically connected to the second boost phase AC terminal; wherein the first half-bridge arm and the second half-bridge arm are both located on the same boost substrate, the boost substrate is arranged on the bottom plate, and the first The upper bridge arm of the half bridge arm and the upper bridge arm of the second half bridge arm include the positive DC end of the H half bridge arm, and the positive DC end of the H half bridge arm is used to be electrically connected to at least one positive DC terminal of the boost phase. The lower bridge arm of the first half bridge arm and the lower bridge arm of the second half bridge arm include the negative DC end of the H half bridge arm, and the negative DC end of the H half bridge arm is used to be electrically connected to at least one negative DC terminal of the boost phase. The second charging substrate is arranged between the first charging substrate and the boost substrate.

[0018] In some embodiments of the present invention, at least one of the boost phase positive DC terminals includes a first boost phase positive DC terminal and a second boost phase positive DC terminal, the positive DC end of the first half-bridge arm is electrically connected to the first boost phase positive DC terminal, and the positive DC end of the second half-bridge arm is electrically connected to the second boost phase positive DC terminal; at least one of the boost phase negative DC terminals includes a first boost phase negative DC terminal, and the negative DC end of the first half-bridge arm and the negative DC end of the second half-bridge arm are both electrically connected to the first boost phase negative DC terminal.

[0019] In order to achieve the above-mentioned object, a power electronic device provided in an embodiment of a second aspect of the present invention comprises a power module as described in any one of the above embodiments.

[0020] According to the power electronic device proposed in the embodiment of the utility model, by setting the power module of the above embodiment, the power module integrates two functional blocks of the boost phase and the power generation phase, so that the power module has multiple functions such as power generation and boost at the same time, and can replace multiple single functional modules used in the electronic control, thereby improving the functional richness of the power module. In addition, it can also effectively reduce the number of heat dissipation devices used in the supporting modules set in the power electronic device, and is also conducive to improving the power density of the power module, thereby effectively saving the internal space of the power electronic device and reducing the overall cost of the power electronic device.

[0021] In order to achieve the above-mentioned object, a vehicle provided in an embodiment of the third aspect of the utility model comprises a vehicle body and a power module as described in any one of the above embodiments, wherein the power module is arranged on the vehicle body.

[0022] According to the vehicle proposed in the embodiment of the utility model, by setting the power module of the above embodiment, the power module integrates two functional blocks of the boost phase and the power generation phase, so that the power module has multiple functions such as power generation and boost at the same time, and can replace multiple single-function modules used in the electronic control, thereby improving the functional richness of the power module. In addition, it can effectively reduce the number of heat dissipation devices used in the supporting modules, and is also conducive to improving the power density of the power module, thereby effectively saving the internal space of the vehicle and reducing the overall cost of the vehicle.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 is a block diagram of a power module according to an embodiment of the utility model;

[0026] Figure 2 A circuit structure diagram of a multi-phase bridge arm and an H half-bridge bridge arm according to an embodiment of the utility model;

[0027] Figure 3 A circuit structure diagram of a multi-phase bridge arm and an H half-bridge bridge arm according to another embodiment of the utility model;

[0028] Figure 4 A circuit structure diagram of a multi-phase bridge arm and an H half-bridge bridge arm according to another embodiment of the utility model;

[0029] Figure 5 A schematic diagram of a power module according to an embodiment of the utility model;

[0030] Figure 6 is a schematic diagram of a power module according to another embodiment of the utility model;

[0031] Figure 7 is a block diagram of a power electronic device according to an embodiment of the utility model;

[0032] Figure 8 The block diagram of a vehicle according to an embodiment of the present utility model.

[0033] Reference numerals:

[0034] Power Electronics 1000;

[0035] Vehicle 100;

[0036] Power module 10, vehicle body 20;

[0037] Base plate 1, power generation phase unit 2, boost phase unit 3;

[0038] Multiphase bridge arm 21, upper bridge arm region 22 of power generation phase unit, lower bridge arm region 23 of power generation phase unit, negative DC region 24 of power generation phase unit, H half bridge arm 31, upper bridge arm region 32 of boost phase unit, lower bridge arm region 33 of boost phase unit, negative DC region 34 of boost phase unit, AC region 35 of boost phase unit;

[0039] The first phase bridge arm 211, the second phase bridge arm 212, the third phase bridge arm 213, the first half bridge arm 311, the second half bridge arm 312, the charging substrate N, the first charging substrate N1, the second charging substrate N2, the boosting substrate M, the first boosting substrate M1, the second boosting substrate M2;

[0040] The first sub-bridge arm U1, the second sub-bridge arm U2, the third sub-bridge arm V1, the fourth sub-bridge arm V2, the fifth sub-bridge arm W1, the sixth sub-bridge arm W2, the first power generation phase AC terminal 1A, the second power generation phase AC terminal 2A, the third power generation phase AC terminal 3A, the first power generation phase positive DC terminal 1B, the second power generation phase positive DC terminal 2B, the first power generation phase negative DC terminal 1C, the second power generation phase negative DC terminal 2C, the first boost phase AC terminal 1D, the second boost phase AC terminal 2D, the first boost phase positive DC terminal 1E, the second boost phase positive DC terminal 2E, the first boost phase negative DC terminal 1F. DETAILED DESCRIPTION

[0041] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0042] Reference below Figure 1-Figure 6 A power module according to an embodiment of the present invention is described.

[0043] In some embodiments of the present invention, Figure 1 , which is a block diagram of a power module according to an embodiment of the present utility model, wherein the power module 10 includes a base plate 1 , a power generation phase unit 2 and a boost phase unit 3 .

[0044] Specifically, the boost phase unit 3 and the power generation phase unit 2 are both arranged on the base plate 1, the negative DC end of the power generation phase unit 2 is electrically connected to the negative DC end of the boost phase unit 3, and the positive DC end of the power generation phase unit 2 is electrically connected to the positive DC end of the boost phase unit 3.

[0045] In some embodiments of the utility model, the power generation phase unit 2 includes a multi-phase bridge arm 21, multiple power generation phase AC terminals, at least one power generation phase positive DC terminal and at least one power generation phase negative DC terminal. The power generation phase unit 2 has power generation and charging functions, that is, when the new energy hybrid vehicle is driving, the three-phase AC current generated by the fuel generator in the vehicle is rectified into DC current to charge the vehicle battery or drive other equipment in the vehicle.

[0046] As described above, according to the power module 10 of the embodiment of the utility model, the boost phase unit 3 and the power generation phase unit 2 are both arranged on the bottom plate 1, and the negative DC terminal of the power generation phase unit 2 is used to be electrically connected to the negative DC terminal of the boost phase unit 3, so that the power module 10 integrates two functional blocks of the boost phase and the power generation phase. The power generation phase unit 2 has power generation and charging functions, and the boost phase unit 3 has a boost function. The power generation phase unit 2 and the boost phase unit 3 can be used in combination, thereby improving the functional richness of the power module 10. In addition, the power generation phase unit 2 and the boost phase unit 3 are integrated on a bottom plate 1, so that the boost phase unit 2 and the power generation phase unit 3 can share a heat sink in the subsequent design, which can save the internal space of the vehicle and save costs.

[0047] Specifically, the AC end of the multi-phase bridge arm 21 corresponds one-to-one to and is electrically connected to multiple power generation phase AC terminals; at least one power generation phase positive DC terminal is electrically connected to the positive DC end of the multi-phase bridge arm 21; and at least one power generation phase negative DC terminal is electrically connected to the negative DC end of the multi-phase bridge arm 21.

[0048] And, in some other embodiments of the present invention, the boost phase unit 3 includes an H half-bridge arm 31, two boost phase AC terminals, at least one boost phase positive DC terminal and at least one boost phase negative DC terminal, wherein the H half-bridge arm 31 of the boost phase unit 3 has a boost function, which can increase the voltage of the DC power generated by the power generation phase unit 2 to meet the requirements of automobile battery charging and other applications.

[0049] Specifically, the AC end of the H half-bridge arm 31 corresponds to and is electrically connected to the two boost phase AC terminals one by one; at least one boost phase positive DC terminal is electrically connected to the positive DC end of the H half-bridge arm 31; and at least one boost phase negative DC terminal is electrically connected to the negative DC end of the H half-bridge arm 31. Thus, the negative DC end of the multi-phase bridge arm 21 is electrically connected to the negative DC end of the H half-bridge arm 31 via at least one power generation phase negative DC terminal and at least one boost phase negative DC terminal, so that the boost phase unit 3 and the power generation phase unit 2 can be used in combination, thereby improving the functional richness of the power module 10.

[0050] In some embodiments, the AC current of the power generation phase unit 2 flows in from the AC end of the power generation phase unit 2, a DC bias current is added to the positive DC end of the power generation phase unit 2, and the DC output current obtained after rectification by the chip of the power generation phase unit 2 is output from the negative DC end of the power generation phase. The DC current of the boost phase unit 3 is input from the negative DC end of the boost phase unit 3 connected to the negative DC end of the power generation phase unit 2, and a DC bias current is added to the positive DC end of the boost phase unit 3. At the same time, the IGBT chip of the upper bridge arm and the FRD chip of the lower bridge arm of the H half-bridge bridge arm 21 in the boost phase unit 3 are turned off, and the FRD chip of the upper bridge arm and the IGBT chip of the lower bridge arm work together with the capacitor and other components configured outside the power module 10 to increase the voltage of the input current, and finally output a DC output current with a higher voltage and opposite polarity to the input current from the AC end of the boost phase unit 3.

[0051] In the circuit structure of the power module 10, whether it is the boost phase unit 2 or the power generation phase unit 3, each half-bridge structure is provided with a dedicated AC end, which can be used to connect to different external circuits or devices, so that in actual application, different full bridges can function alone, or two units can be used in combination, thereby improving the functional richness and selection flexibility of the power module 10.

[0052] Specifically, it can be combined Figure 2-Figure 4 Understand the multi-phase bridge arm 21 of the power generation phase unit 2 and the H half-bridge bridge arm 31 of the boost phase unit 3 in the embodiment of the utility model. Figure 2 A circuit structure diagram of a multi-phase bridge arm and an H half-bridge bridge arm according to an embodiment of the utility model; Figure 3 A circuit structure diagram of a multi-phase bridge arm and an H half-bridge bridge arm according to another embodiment of the utility model; Figure 4 The present invention is a circuit diagram of a multi-phase bridge arm and an H half-bridge bridge arm according to another embodiment of the present invention.

[0053] like Figure 2 As shown, the power module 10 includes a three-phase full-bridge power generation phase unit 2 composed of three half-bridge structures and an H-bridge boost phase unit 3 composed of two half-bridges. The three half-bridge structures in the power generation phase unit 2 are located on the same substrate, namely the charging substrate N, and the two half-bridge structures in the boost phase unit 3 are respectively located on two independent substrates, namely the first boost substrate M1 and the second boost substrate M2. Each half-bridge structure in the power module 10 has an exclusive AC terminal, which can be matched with each other, thereby improving the functional flexibility of the power module 10.

[0054] For example, the first phase bridge arm 211, the second phase bridge arm 212 and the third phase bridge arm 21 of the power generation phase unit 2 can be used to connect three power generation phase AC terminals respectively, and the first half bridge arm 311 and the second half bridge arm 312 of the boost phase unit 3 can be used to connect two boost phase AC terminals respectively. Each AC terminal can be used to connect different circuits or devices externally, so that in actual application, the boost phase unit 2 and the power generation phase unit 3 can function separately or be used in combination, thereby improving the functional richness and selection flexibility of the power module 10.

[0055] like Figure 3 As shown, compared to Figure 2 For the power module 10 shown, the layout of the power generation phase unit 2 includes three half-bridge structures that remain unchanged, and the H half-bridge arm 31 in the boost phase unit 3 is combined into a substrate, namely, the boost substrate M, which can reduce the substrate area occupied by the boost phase unit 2 as a whole and improve the overall power density of the power module 10.

[0056] And, if Figure 4As shown, the number of half-bridge structures in the three-phase bridge arm of the power generation phase unit 2 is increased to six, the first phase bridge arm 211 includes a first sub-bridge arm U1 and a second sub-bridge arm U2; the second phase bridge arm 212 includes a third sub-bridge arm V1 and a fourth sub-bridge arm V2; the third phase bridge arm 213 includes a fifth sub-bridge arm W1 and a sixth sub-bridge arm W2, and the six sub-bridge arms are respectively used to be electrically connected to the six power generation phase AC terminals, and the U phase and the V phase composed of two half-bridges, that is, the first phase bridge arm 211 and the second phase bridge arm 212 are located on the same base The board is on the first charging substrate N1, which can be collectively referred to as U+V phases. The other two half-bridges form the W phase, i.e. the third phase bridge arm 213, which is located separately on a substrate, i.e. the second charging substrate N2. When the U, V, and W phases work at the same time, the three-phase AC power generated by the generator is rectified into DC power; and when any two of the phase bridge arms work at the same time, the general AC power can be rectified into DC power; at the same time, the third phase bridge arm 213 occupying a substrate alone can enhance its performance by replacing the chip, thereby increasing the overall power upper limit of the power generation phase unit 2.

[0057] To sum up, the embodiments of the utility model integrate multiple circuit structures in a single module, so that the power module 10 of the embodiments of the utility model has multiple functions such as power generation and boosting at the same time. Different working modes are adopted according to different application scenarios. In the electronic control, multiple single-function modules used in combination can be replaced, so that in the subsequent design, the boost phase unit 2 and the power generation phase unit 3 can share a heat sink, which reduces the number of heat dissipation devices used in the supporting modules and improves the power density, effectively saves the internal space of the vehicle, and reduces the overall cost.

[0058] In some embodiments of the present invention, it can be combined with Figure 2 , Figure 3 , Figure 5 and Figure 6 Understand the design of the power generation phase unit 2, multiple power generation phase AC terminals, at least one power generation phase positive DC terminal and at least one power generation phase negative DC terminal in the embodiment of the utility model, Figure 5 A schematic diagram of a power module according to an embodiment of the utility model;

[0059] Figure 6 FIG. 1 is a schematic diagram of a power module according to another embodiment of the present utility model. Figure 5 and Figure 6 The multi-phase bridge arm 21 , the first phase bridge arm 211 , the second phase bridge arm 212 and the third phase bridge arm 213 are not shown.

[0060] Among them, Figure 5 or Figure 6As shown, the multiple power generation phase AC terminals include a first power generation phase AC terminal 1A, a second power generation phase AC terminal 2A and a third power generation phase AC terminal 3A, and the multi-phase bridge arm 21 includes a first phase bridge arm 211, a second phase bridge arm 212 and a third phase bridge arm 213.

[0061] Specifically, combined Figure 2 , Figure 3 , Figure 5 and Figure 6 It can be seen that the AC end of the first phase bridge arm 211 is electrically connected to the first power generation phase AC terminal 1A; the AC end of the second phase bridge arm 212 is electrically connected to the second power generation phase AC terminal 2A; the AC end of the third phase bridge arm 213 is electrically connected to the third power generation phase AC terminal 3A.

[0062] Among them, the first phase bridge arm 211, the second phase bridge arm 212 and the third phase bridge arm 213 are located on the same charging substrate N, and the charging substrate N is arranged on the bottom plate 1. The upper bridge arm of the first phase bridge arm 211, the upper bridge arm of the second phase bridge arm 212 and the upper bridge arm of the third phase bridge arm 213 include the positive DC end of the multi-phase bridge arm 21, and the positive DC end of the multi-phase bridge arm 21 is used to be electrically connected to at least one positive DC terminal of the power generation phase. The lower bridge arm of the first phase bridge arm 211, the lower bridge arm of the second phase bridge arm 212 and the lower bridge arm of the third phase bridge arm 213 include the negative DC end of the multi-phase bridge arm 21, and the negative DC end of the multi-phase bridge arm 21 is used to be electrically connected to at least one negative DC terminal of the power generation phase.

[0063] Specifically, in some embodiments, at least one power generation phase positive DC terminal includes a first power generation phase positive DC terminal 1B, and the positive DC end of the first phase bridge arm 211, the positive DC end of the second phase bridge arm 212 and the positive DC end of the third phase bridge arm 213 are all electrically connected to the first power generation phase positive DC terminal 1B; at least one power generation phase negative DC terminal includes a first power generation phase negative DC terminal 1C and a second power generation phase negative DC terminal 2C, and the negative DC end of the first phase bridge arm 211, the negative DC end of the second phase bridge arm 212 and the negative DC end of the third phase bridge arm 213 are all electrically connected to the first power generation phase negative DC terminal 1C and the second power generation phase negative DC terminal 2C.

[0064] Among them, Figure 5 or Figure 6As shown, the first power generation phase positive DC terminal 1B is connected to the upper bridge arm region 22 of the power generation phase unit, the first power generation phase AC terminal 1A, the second power generation phase AC terminal 2A and the third power generation phase AC terminal 3A are respectively connected to the lower bridge arm region 23 of the power generation phase unit, and the lower bridge arm region 23 of the power generation phase unit is connected to the upper surface of the upper bridge arm chip of the power generation phase unit 2 through a bonding wire; the upper surface of the lower bridge arm chip of the power generation phase unit 2 and the negative DC region 24 of the power generation phase unit are connected through a bonding wire, and the negative DC region 24 of the power generation phase unit is simultaneously connected to the first power generation phase negative DC terminal 1C and the second power generation phase negative DC terminal 2C.

[0065] In some embodiments of the present invention, it can be combined with Figure 2 and Figure 5 Understand the design of the boost phase unit 3, two boost phase AC terminals, at least one boost phase positive DC terminal and at least one boost phase negative DC terminal of the embodiment of the utility model. Figure 5 The H half-bridge arm 31 , the first half-bridge arm 311 and the second half-bridge arm 312 are not shown.

[0066] like Figure 5 As shown, the two boost phase AC terminals include a first boost phase AC terminal 1D and a second boost phase AC terminal 2D, and the H half bridge arm 31 includes a first half bridge arm 311 and a second half bridge arm 312 .

[0067] Specifically, combined Figure 2 and Figure 5 It can be seen that the first half-bridge arm 311 is located on the first boost substrate M1, and the AC end of the first half-bridge arm 311 is used to be electrically connected to the first boost phase AC terminal 1D; the second half-bridge arm 312 is located on the second boost substrate M2, and the AC end of the second half-bridge arm 312 is used to be electrically connected to the second boost phase AC terminal 2D, wherein the first boost substrate M1 and the second boost substrate M2 are both arranged on the bottom plate 1, and the first boost substrate M1 is arranged on the charging substrate N and the second boost substrate M 2; wherein, the upper bridge arm of the first half-bridge arm 311 and the upper bridge arm of the second half-bridge arm 312 include the positive DC end of the H half-bridge arm 31, and the positive DC end of the H half-bridge arm 31 is used to be electrically connected to at least one positive DC terminal of the boost phase, and the lower bridge arm of the first half-bridge arm 311 and the lower bridge arm of the first half-bridge arm 311 include the negative DC end of the H half-bridge arm 31, and the negative DC end of the H half-bridge arm 31 is used to be electrically connected to at least one negative DC terminal of the boost phase.

[0068] In some embodiments of the present invention, at least one boost phase positive DC terminal includes a first boost phase positive DC terminal 1E and a second boost phase positive DC terminal 2E, the positive DC end of the first half-bridge arm 311 is connected to the first boost phase positive DC terminal 1E, and the positive DC end of the second half-bridge arm 312 is connected to the second boost phase positive DC terminal 2E; at least one boost phase negative DC terminal includes a first boost phase negative DC terminal 1F, and the negative DC end of the first half-bridge arm 311 and the negative DC end of the second half-bridge arm 312 are both electrically connected to the first boost phase negative DC terminal 1F.

[0069] Specifically, Figure 5 As shown, the first boost phase positive DC terminal 1E and the second boost phase positive DC terminal 2E are connected to the upper bridge arm region 32 of the boost phase unit, the first boost phase AC terminal 1D and the second boost phase AC terminal 2D are connected to the lower bridge arm region 33 of the boost phase unit, and the lower bridge arm region 33 of the boost phase unit is connected to the upper bridge arm chip surface of the boost phase unit 3 through a bonding wire; the upper bridge arm chip surface of the lower bridge arm of the boost phase unit 3 and the negative DC region 34 of the boost phase unit are connected through a bonding wire, and the negative DC region 34 of the boost phase unit is simultaneously connected to the first boost phase negative DC terminal 1F. Based on this, the two half-bridge layouts in the boost phase unit 3 are respectively located on two independent substrates, namely the first boost substrate M1 and the second boost substrate M2, and each half-bridge structure in the power module 10 has a dedicated AC terminal, which can be used in combination with each other to improve the functional flexibility of the power module 10.

[0070] In some embodiments of the present invention, it can be combined with Figure 4 Understand the design of the power generation phase unit 2, multiple power generation phase AC terminals, at least one power generation phase positive DC terminal and at least one power generation phase negative DC terminal in another embodiment of the utility model.

[0071] Among them, the multiple power generation phase AC terminals include the first power generation phase AC terminal, the second power generation phase AC terminal, the third power generation phase AC terminal, the fourth power generation phase AC terminal, the fifth power generation phase AC terminal and the sixth power generation phase AC terminal, at least one boost phase negative DC terminal includes the first power generation phase negative DC terminal and the second power generation phase negative DC terminal, and at least one power generation phase positive DC terminal includes the first power generation phase positive DC terminal and the second power generation phase positive DC terminal. Among them, Figure 4 The first power generation phase AC terminal, the second power generation phase AC terminal, the third power generation phase AC terminal, the fourth power generation phase AC terminal, the fifth power generation phase AC terminal, the sixth power generation phase AC terminal, the first power generation phase negative DC terminal, the second power generation phase negative DC terminal, the first power generation phase positive DC terminal and the second power generation phase positive DC terminal are not shown.

[0072] like Figure 4 As shown, the multi-phase bridge arm 21 includes a first-phase bridge arm 211, a second-phase bridge arm 212 and a third-phase bridge arm 213. The first-phase bridge arm 211 includes a first sub-bridge arm U1 and a second sub-bridge arm U2. The AC end of the first sub-bridge arm U1 is used to be electrically connected to the first power generation phase AC terminal, and the AC end of the second sub-bridge arm U2 is used to be electrically connected to the second power generation phase AC terminal; the second-phase bridge arm 212 includes a third sub-bridge arm V1 and a fourth sub-bridge arm V2. The AC end of the third sub-bridge arm V1 is used to be electrically connected to the third power generation phase AC terminal, and the AC end of the fourth sub-bridge arm V2 is used to be electrically connected to the fourth power generation phase AC terminal; the third-phase bridge arm 213 includes a fifth sub-bridge arm W1 and a sixth sub-bridge arm W2. The AC end of the fifth sub-bridge arm W1 is used to be electrically connected to the fifth power generation phase AC terminal, and the AC end of the sixth sub-bridge arm W2 is used to be electrically connected to the sixth power generation phase AC terminal.

[0073] Among them, the first phase bridge arm 211 and the second phase bridge arm 212 are located on the first charging substrate N1, the third phase bridge arm 213 is located on the second charging substrate N2, the first charging substrate N1 and the second charging substrate N2 are both arranged on the bottom plate 1, the upper bridge arm of the first sub-bridge arm U1, the upper bridge arm of the second sub-bridge arm U2, the upper bridge arm of the third sub-bridge arm V1 and the upper bridge arm of the fourth sub-bridge arm V2 include the first positive DC end of the multi-phase bridge arm 21, the first positive DC end of the multi-phase bridge arm 21 is used to be electrically connected to the positive DC terminal of the first power generation phase, the upper bridge arm of the fifth sub-bridge arm W1 and the upper bridge arm of the sixth sub-bridge arm W2 include the first positive DC end of the multi-phase bridge arm 21 Two positive DC terminals, the second positive DC terminal of the multi-phase bridge arm 21 is used to be electrically connected to the positive DC terminal of the second power generation phase, the lower bridge arm of the first sub-bridge arm U1, the lower bridge arm of the second sub-bridge arm U2, the lower bridge arm of the third sub-bridge arm V1 and the lower bridge arm of the fourth sub-bridge arm V2 include the first negative DC terminal of the multi-phase bridge arm 21, the first negative DC terminal of the multi-phase bridge arm 21 is used to be electrically connected to the negative DC terminal of the first power generation phase, the lower bridge arm of the fifth sub-bridge arm W1 and the lower bridge arm of the sixth sub-bridge arm W2 include the second negative DC terminal of the multi-phase bridge arm 21, the second negative DC terminal of the multi-phase bridge arm 21 is used to be electrically connected to the negative DC terminal of the second power generation phase. Based on this, when any two phase bridge arms in the power generation phase unit 2 work at the same time, the general AC power can be rectified into DC power; at the same time, the third phase bridge arm 213, which occupies a single substrate, can enhance the performance by replacing the chip, thereby increasing the overall power upper limit of the power generation phase unit 2.

[0074] In some embodiments of the present invention, it can be combined with Figure 3 , Figure 4 , Figure 6 Understand the design of the boost phase unit 3, two boost phase AC terminals, at least one boost phase positive DC terminal and at least one boost phase negative DC terminal of the embodiment of the utility model. Figure 6The H half-bridge arm 31 , the first half-bridge arm 311 and the second half-bridge arm 312 are not shown.

[0075] Wherein, in some embodiments, Figure 6 As shown, the two boost phase AC terminals include a first boost phase AC terminal 1D and a second boost phase AC terminal 2D, and the H half-bridge arm 31 includes a first half-bridge arm 311 and a second half-bridge arm 312, wherein the AC end of the first half-bridge arm 311 is used to be electrically connected to the first boost phase AC terminal 1D; and the AC end of the second half-bridge arm 312 is used to be electrically connected to the second boost phase AC terminal 2D.

[0076] Specifically, combined Figure 3 and Figure 6 It can be seen that the first half-bridge arm 311 and the second half-bridge arm 312 are both located on the same boost substrate M, and the boost substrate M is arranged on the base plate 1. The upper bridge arm of the first half-bridge arm 311 and the upper bridge arm of the second half-bridge arm 312 include the positive DC end of the H half-bridge arm 31, and the positive DC end of the H half-bridge arm 31 is used to be electrically connected to at least one boost phase positive DC terminal. The lower bridge arm of the first half-bridge arm 311 and the lower bridge arm of the second half-bridge arm 312 include the negative DC end of the H half-bridge arm 31, and the negative DC end of the H half-bridge arm 31 is used to be electrically connected to at least one boost phase negative DC terminal. The boost substrate M is arranged on one side of the charging substrate N.

[0077] Among them, at least one boost phase positive DC terminal includes a first boost phase positive DC terminal 1E and a second boost phase positive DC terminal 2E, the positive DC end of the first half-bridge arm 311 is electrically connected to the first boost phase positive DC terminal 1E, and the positive DC end of the second half-bridge arm 312 is electrically connected to the second boost phase positive DC terminal 2E; and, at least one boost phase negative DC terminal includes a first boost phase negative DC terminal 1F, and the negative DC end of the first half-bridge arm 311 and the negative DC end of the second half-bridge arm 312 are both electrically connected to the first boost phase negative DC terminal 1F.

[0078] Specifically, Figure 6As shown, the first boost phase positive DC terminal 1E and the second boost phase positive DC terminal 2E are connected to the upper bridge arm region 32 of the boost phase unit, the first boost phase AC terminal 1D and the second boost phase AC terminal 2D are connected to the AC region 35 of the boost phase unit, and the lower bridge arm region 33 of the boost phase unit and the AC region 35 of the boost phase unit are connected to the upper surface of the upper bridge arm chip of the boost phase unit through bonding wires; the negative DC region 34 of the boost phase unit connected to the first boost phase negative DC terminal 1F is connected to the upper surface of the lower bridge arm chip DE of the boost phase unit through bonding wires. Based on this, the first phase bridge arm 211, the second phase bridge arm 212 and the third phase bridge arm 21 of the power generation phase unit 2 can be used to connect three power generation phase AC terminals respectively, and the first half bridge arm 311 and the second half bridge arm 312 of the boost phase unit 3 can be used to connect two boost phase AC terminals respectively. Each AC terminal can be used to connect to different circuits or devices, so that in actual applications, the boost phase unit 2 and the power generation phase unit 3 can function independently or in combination, thereby improving the functionality and selection flexibility of the power module 10.

[0079] In other embodiments, the two boost phase AC terminals include a first boost phase AC terminal and a second boost phase AC terminal, and the H half-bridge arm 31 includes a first half-bridge arm 311 and a second half-bridge arm 312, wherein the AC end of the first half-bridge arm 311 is used to be electrically connected to the first boost phase AC terminal; and the AC end of the second half-bridge arm 312 is used to be electrically connected to the second boost phase AC terminal.

[0080] Specifically, by Figure 4 It can be seen that the first half-bridge arm 311 and the second half-bridge arm 312 are both located on the same boost substrate M, and the boost substrate M is arranged on the base plate 1. The upper bridge arm of the first half-bridge arm 311 and the upper bridge arm of the second half-bridge arm 312 include the positive DC end of the H half-bridge arm 31, and the positive DC end of the H half-bridge arm 31 is used to be electrically connected to at least one boost phase positive DC terminal. The lower bridge arm of the first half-bridge arm 311 and the lower bridge arm of the second half-bridge arm 312 include the negative DC end of the H half-bridge arm 31, and the negative DC end of the H half-bridge arm 31 is used to be electrically connected to at least one boost phase negative DC terminal. The second charging substrate N2 is arranged between the first charging substrate N1 and the boost substrate M.

[0081] Among them, at least one boost phase positive DC terminal may include a first boost phase positive DC terminal and a second boost phase positive DC terminal, the positive DC end of the first half-bridge arm 311 is suitable for being electrically connected to the first boost phase positive DC terminal, and the positive DC end of the second half-bridge arm 312 is suitable for being electrically connected to the second boost phase positive DC terminal; and at least one boost phase negative DC terminal may include a first boost phase negative DC terminal, and the negative DC end of the first half-bridge arm 311 and the negative DC end of the second half-bridge arm 312 are both suitable for being electrically connected to the first boost phase negative DC terminal. Based on this, merging the layout of the H half-bridge arm 31 in the boost phase unit 3 onto a substrate, namely the boost substrate M, can reduce the substrate area occupied by the boost phase unit 2 as a whole and improve the overall power density of the power module 10.

[0082] Based on the above, the power module 10 proposed in the embodiment of the utility model integrates multiple circuit structures in a single module, so that the power module 10 has multiple functions such as power generation and boosting at the same time, adopts different working modes according to different application scenarios, and can replace multiple single-function modules used in the electronic control, so that in the subsequent design, the boost phase unit 2 and the power generation phase unit 3 can share a heat sink, which reduces the number of heat dissipation devices used in the supporting modules and improves the power density, effectively saves the internal space of the vehicle and reduces the overall cost.

[0083] In order to achieve the above-mentioned object, the second embodiment of the present utility model provides a power electronic device, such as Figure 7 , which is a block diagram of a power electronic device according to an embodiment of the present invention, wherein the power electronic device 1000 includes the power module 10 of the above embodiment.

[0084] According to the power electronic device 1000 proposed in the embodiment of the utility model, by setting the power module 10 of the above embodiment, the power module 10 integrates two functional blocks of the boost phase and the power generation phase, so that the power module 10 has multiple functions such as power generation and boost at the same time, and can replace multiple single-function modules used in the electric control, thereby improving the functional richness of the power module 10. In addition, it can also effectively reduce the number of heat dissipation devices used in the supporting modules set in the power electronic device 1000, and is also conducive to improving the power density of the power module 10, thereby effectively saving the internal space of the power electronic device 1000 and reducing the overall cost of the power electronic device 1000.

[0085] In order to achieve the above-mentioned object, the third aspect of the present utility model provides a vehicle, such as Figure 8 , which is a block diagram of a vehicle according to an embodiment of the present utility model, wherein the vehicle 100 includes a vehicle body 20 and the power module 10 of the above embodiment, and the power module 10 is arranged on the vehicle body 20 .

[0086] According to the vehicle 100 proposed in the embodiment of the utility model, by setting the power module 10 of the above embodiment, the power module 10 integrates two functional blocks of the boost phase and the power generation phase, so that the power module 10 has multiple functions such as power generation and boost at the same time, and can replace multiple single-function modules used in the electronic control, thereby improving the functional richness of the power module 10. In addition, it can effectively reduce the number of heat dissipation devices used in the supporting modules, and is also conducive to improving the power density of the power module 10, thereby effectively saving the internal space of the vehicle 100 and reducing the overall cost of the vehicle 100.

[0087] Other structures and operations of the vehicle 100 and the power device 10 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0088] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0089] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A power module, characterized in that: include: Base plate; Power generation phase unit; and A boost phase unit, wherein the boost phase unit and the power generation phase unit are both arranged on the bottom plate, the negative DC end of the power generation phase unit is electrically connected to the negative DC end of the boost phase unit, and the positive DC end of the power generation phase unit is electrically connected to the positive DC end of the boost phase unit.

2. The power module according to claim 1, characterized in that: The power generation phase unit comprises: Multiphase bridge arms; and A plurality of power generation phase AC terminals, wherein the AC ends of the multi-phase bridge arms correspond one-to-one to and are electrically connected to the plurality of power generation phase AC terminals; At least one power generation phase positive DC terminal, at least one of the power generation phase positive DC terminals is electrically connected to the positive DC end of the multi-phase bridge arm; and At least one power generation phase negative DC terminal, at least one of the power generation phase negative DC terminals is electrically connected to the negative DC end of the multi-phase bridge arm.

3. The power module according to claim 2, characterized in that: The boost phase unit comprises: H half-bridge arm; Two boost phase AC terminals, the AC end of the H half-bridge arm corresponds to and is electrically connected to the two boost phase AC terminals one by one; At least one boost phase positive DC terminal, at least one of the boost phase positive DC terminals being electrically connected to the positive DC end of the H half-bridge arm; and At least one boost phase negative DC terminal, at least one of the boost phase negative DC terminals is electrically connected to the negative DC end of the H half-bridge arm.

4. The power module according to claim 3, characterized in that: The plurality of power generation phase AC terminals include a first power generation phase AC terminal, a second power generation phase AC terminal and a third power generation phase AC terminal. The multi-phase bridge arm comprises: A first phase bridge arm, wherein an AC end of the first phase bridge arm is electrically connected to the first power generation phase AC terminal; A second phase bridge arm, an AC end of the second phase bridge arm being electrically connected to the second power generation phase AC terminal; and A third-phase bridge arm, an AC end of the third-phase bridge arm being electrically connected to the third power generation phase AC terminal; Among them, the first-phase bridge arm, the second-phase bridge arm and the third-phase bridge arm are located on the same charging substrate, and the charging substrate is arranged on the bottom plate. The upper bridge arm of the first-phase bridge arm, the upper bridge arm of the second-phase bridge arm and the upper bridge arm of the third-phase bridge arm include the positive DC end of the multi-phase bridge arm, and the positive DC end of the multi-phase bridge arm is used to be electrically connected to at least one of the positive DC terminals of the power generation phase. The lower bridge arm of the first-phase bridge arm, the lower bridge arm of the second-phase bridge arm and the lower bridge arm of the third-phase bridge arm include the negative DC end of the multi-phase bridge arm, and the negative DC end of the multi-phase bridge arm is used to be electrically connected to at least one of the negative DC terminals of the power generation phase.

5. The power module according to claim 4, characterized in that: At least one of the power generation phase positive DC terminals includes a first power generation phase positive DC terminal, and the positive DC terminal of the first phase bridge arm, the positive DC terminal of the second phase bridge arm, and the positive DC terminal of the third phase bridge arm are all electrically connected to the first power generation phase positive DC terminal; At least one of the power generation phase negative DC terminals includes a first power generation phase negative DC terminal and a second power generation phase negative DC terminal, and the negative DC end of the first phase bridge arm, the negative DC end of the second phase bridge arm and the negative DC end of the third phase bridge arm are all electrically connected to the first power generation phase negative DC terminal and the second power generation phase negative DC terminal.

6. The power module according to claim 4, characterized in that: The two boost phase AC terminals include a first boost phase AC terminal and a second boost phase AC terminal. The H half-bridge arm comprises: A first half-bridge arm, the first half-bridge arm being located on the first boost substrate, the AC end of the first half-bridge arm being used to be electrically connected to the first boost phase AC terminal; and a second half-bridge arm, the second half-bridge arm being located on a second boost substrate, an AC end of the second half-bridge arm being used to be electrically connected to the second boost phase AC terminal, wherein the first boost substrate and the second boost substrate are both disposed on the bottom plate, and the first boost substrate is disposed between the charging substrate and the second boost substrate; Among them, the upper bridge arm of the first half-bridge arm and the upper bridge arm of the second half-bridge arm include the positive DC end of the H half-bridge arm, and the positive DC end of the H half-bridge arm is used to be electrically connected to at least one positive DC terminal of the boost phase, and the lower bridge arm of the first half-bridge arm and the lower bridge arm of the first half-bridge arm include the negative DC end of the H half-bridge arm, and the negative DC end of the H half-bridge arm is used to be electrically connected to at least one negative DC terminal of the boost phase.

7. The power module according to claim 6, characterized in that: At least one of the boost phase positive DC terminals includes a first boost phase positive DC terminal and a second boost phase positive DC terminal, the positive DC end of the first half-bridge arm is connected to the first boost phase positive DC terminal, and the positive DC end of the second half-bridge arm is connected to the second boost phase positive DC terminal; At least one of the boost phase negative DC terminals includes a first boost phase negative DC terminal, and the negative DC end of the first half-bridge arm and the negative DC end of the second half-bridge arm are both electrically connected to the first boost phase negative DC terminal.

8. The power module according to claim 3, characterized in that: The plurality of power generation phase AC terminals include a first power generation phase AC terminal, a second power generation phase AC terminal, a third power generation phase AC terminal, a fourth power generation phase AC terminal, a fifth power generation phase AC terminal and a sixth power generation phase AC terminal, the at least one boost phase negative DC terminal includes a first power generation phase negative DC terminal and a second power generation phase negative DC terminal, the at least one power generation phase positive DC terminal includes a first power generation phase positive DC terminal and a second power generation phase positive DC terminal, The multi-phase bridge arm comprises: A first-phase bridge arm, the first-phase bridge arm comprising a first sub-bridge arm and a second sub-bridge arm, an AC end of the first sub-bridge arm being used to be electrically connected to the first power generation phase AC terminal, and an AC end of the second sub-bridge arm being used to be electrically connected to the second power generation phase AC terminal; a second-phase bridge arm, wherein the second-phase bridge arm comprises a third sub-bridge arm and a fourth sub-bridge arm, wherein an AC end of the third sub-bridge arm is used to be electrically connected to the third power generation phase AC terminal, and an AC end of the fourth sub-bridge arm is used to be electrically connected to the fourth power generation phase AC terminal; A third-phase bridge arm, the third-phase bridge arm comprising a fifth sub-bridge arm and a sixth sub-bridge arm, the AC end of the fifth sub-bridge arm being used to be electrically connected to the fifth power generation phase AC terminal, and the AC end of the sixth sub-bridge arm being used to be electrically connected to the sixth power generation phase AC terminal; Wherein, the first-phase bridge arm and the second-phase bridge arm are located on the first charging substrate, the third-phase bridge arm is located on the second charging substrate, the first charging substrate and the second charging substrate are both arranged on the bottom plate, the upper bridge arm of the first sub-bridge arm, the upper bridge arm of the second sub-bridge arm, the upper bridge arm of the third sub-bridge arm and the upper bridge arm of the fourth sub-bridge arm include the first positive DC end of the multi-phase bridge arm, the first positive DC end of the multi-phase bridge arm is used to be electrically connected to the positive DC terminal of the first power generation phase, the upper bridge arm of the fifth sub-bridge arm and the upper bridge arm of the sixth sub-bridge arm include the second positive DC end of the multi-phase bridge arm end, the second positive DC end of the multi-phase bridge arm is used to be electrically connected to the positive DC terminal of the second power generation phase, the lower bridge arm of the first sub-bridge arm, the lower bridge arm of the second sub-bridge arm, the lower bridge arm of the third sub-bridge arm and the lower bridge arm of the fourth sub-bridge arm include the first negative DC end of the multi-phase bridge arm, and the first negative DC end of the multi-phase bridge arm is used to be electrically connected to the negative DC terminal of the first power generation phase, the lower bridge arm of the fifth sub-bridge arm and the lower bridge arm of the sixth sub-bridge arm include the second negative DC end of the multi-phase bridge arm, and the second negative DC end of the multi-phase bridge arm is used to be electrically connected to the negative DC terminal of the second power generation phase.

9. The power module according to claim 4, characterized in that: The two boost phase AC terminals include a first boost phase AC terminal and a second boost phase AC terminal, and the H half-bridge arm includes: A first half-bridge arm, wherein an AC end of the first half-bridge arm is used to be electrically connected to the first boost phase AC terminal; A second half-bridge arm, wherein an AC end of the second half-bridge arm is used to be electrically connected to the second boost phase AC terminal; Wherein, the first half-bridge arm and the second half-bridge arm are both located on the same boost substrate, and the boost substrate is arranged on the bottom plate, the upper bridge arm of the first half-bridge arm and the upper bridge arm of the second half-bridge arm include the positive DC end of the H half-bridge arm, and the positive DC end of the H half-bridge arm is used to be electrically connected to at least one positive DC terminal of the boost phase, the lower bridge arm of the first half-bridge arm and the lower bridge arm of the second half-bridge arm include the negative DC end of the H half-bridge arm, and the negative DC end of the H half-bridge arm is used to be electrically connected to at least one negative DC terminal of the boost phase, and the boost substrate is arranged on one side of the charging substrate.

10. The power module according to claim 8, characterized in that: The two boost phase AC terminals include a first boost phase AC terminal and a second boost phase AC terminal, and the H half-bridge arm includes: A first half-bridge arm, wherein an AC end of the first half-bridge arm is used to be electrically connected to the first boost phase AC terminal; A second half-bridge arm, wherein an AC end of the second half-bridge arm is used to be electrically connected to the second boost phase AC terminal; Wherein, the first half-bridge arm and the second half-bridge arm are both located on the same boost substrate, the boost substrate is arranged on the bottom plate, the upper bridge arm of the first half-bridge arm and the upper bridge arm of the second half-bridge arm include the positive DC end of the H half-bridge arm, and the positive DC end of the H half-bridge arm is used to be electrically connected to at least one positive DC terminal of the boost phase, the lower bridge arm of the first half-bridge arm and the lower bridge arm of the second half-bridge arm include the negative DC end of the H half-bridge arm, and the negative DC end of the H half-bridge arm is used to be electrically connected to at least one negative DC terminal of the boost phase, and the second charging substrate is arranged between the first charging substrate and the boost substrate.

11. The power module according to claim 9 or 10, characterized in that: At least one of the boost phase positive DC terminals includes a first boost phase positive DC terminal and a second boost phase positive DC terminal, the positive DC end of the first half-bridge arm is electrically connected to the first boost phase positive DC terminal, and the positive DC end of the second half-bridge arm is electrically connected to the second boost phase positive DC terminal; At least one of the boost phase negative DC terminals includes a first boost phase negative DC terminal, and the negative DC end of the first half-bridge arm and the negative DC end of the second half-bridge arm are both electrically connected to the first boost phase negative DC terminal.

12. A power electronic device, characterized in that: A power module comprising any one of claims 1-11.

13. A vehicle, characterized in that: The invention comprises a vehicle body and the power module according to any one of claims 1 to 11, wherein the power module is arranged on the vehicle body.

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