Power module, power electronic device and vehicle

Abstract

Disclosed in the present application are a power module, a power electronic device and a vehicle. The power module comprises a bottom plate, a power generation phase unit and a boost phase unit, the boost phase unit and the power generation phase unit being both arranged on the bottom plate, a negative electrode direct-current end of the power generation phase unit being used for electrically connecting to a negative electrode direct-current end of the boost phase unit, and a positive electrode direct-current end of the power generation phase unit being electrically connected to a positive electrode direct-current end of the boost phase unit. The power module in the embodiments of the present application integrates two functional blocks a boost phase and a power generation phase, thus improving functional diversity of the power module; in addition, arranging the power generation phase unit and the boost phase unit on the same bottom plate can effectively reduce the number of heat dissipation devices of mating modules, thus improving the power density of the power module, effectively saving internal space of vehicles, and reducing overall costs.

Description

Power module, power electronic device and vehicle

[0001] The present application claims priority to the Chinese patent application No. 202421519981.6 filed on June 28, 2024, and entitled "Power module, power electronic device and vehicle", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of vehicles, in particular to a power module, a power electronic device and a vehicle. BACKGROUND

[0003] In the prior art, the power module with a three-phase full-bridge structure is used in the electric control of a new energy vehicle, which can only realize a single driving function, and in a hybrid electric vehicle, a power generation module, a boost module and an energy supply inductor are additionally matched for use, and since there is a gap between each module, a separate dedicated radiator needs to be set for each module, which occupies a large space inside the vehicle. SUMMARY

[0004] The present application aims to provide a power module, a power electronic device and a vehicle, so that the power module integrates two functional blocks of a boost phase and a power generation phase, improves the functionality of the power module, and sets the power generation phase unit and the boost phase unit on a bottom plate, which can effectively reduce the number of cooling devices for the matched modules, improve the power density of the power module, effectively save the internal space of the vehicle and reduce the overall cost.

[0005] In a first aspect, the present application discloses a power module, comprising: a bottom 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 bottom plate, a negative direct current end of the power generation phase unit is electrically connected with a negative direct current end of the boost phase unit, and a positive direct current end of the power generation phase unit is electrically connected with a positive direct current end of the boost phase.

[0006] In a second aspect, the present application discloses a power electronic device, comprising the power module of the first aspect.

[0007] In a third aspect, the present application discloses a vehicle, comprising a vehicle body and the power module of the first aspect, and the power module is arranged on the vehicle body.

[0008] In combination with the above technical solution, the power module disclosed in the application has the following advantages: the power module integrates the boost phase unit and the power generation phase unit on the bottom plate, and the negative DC end and the positive DC end of the power generation phase unit are electrically connected with the negative DC end and the positive DC end of the boost phase unit, so that the power module integrates two functional blocks of the boost phase and the power generation phase, the power generation phase unit has the functions of power generation and charging, and the boost phase unit has the function of voltage boosting, so that the power module has multiple functions such as power generation and voltage boosting, and the power generation phase unit and the boost phase unit can be used in combination, can replace multiple single-function modules used in combination in the electric control, and improve the functional richness of the power module. In addition, the power generation phase unit and the boost phase unit are integrated on the bottom plate, which can effectively reduce the number of heat dissipation devices of the matching modules in subsequent design, is also beneficial to improve the power density of the power module, effectively saves the internal space of the vehicle, and reduces the overall cost. BRIEF DESCRIPTION OF DRAWINGS

[0009] FIG. 1 is a block diagram of a power module according to an embodiment of the application;

[0010] FIG. 2 is a circuit structure diagram of a multi-phase bridge arm and an H half-bridge bridge arm according to an embodiment of the application;

[0011] FIG. 3 is a circuit structure diagram of a multi-phase bridge arm and an H half-bridge bridge arm according to another embodiment of the application;

[0012] FIG. 4 is a circuit structure diagram of a multi-phase bridge arm and an H half-bridge bridge arm according to still another embodiment of the application;

[0013] FIG. 5 is a schematic diagram of a power module according to an embodiment of the application;

[0014] FIG. 6 is a schematic diagram of a power module according to another embodiment of the application;

[0015] FIG. 7 is a block diagram of a power electronic device according to an embodiment of the application;

[0016] FIG. 8 is a block diagram of a vehicle according to an embodiment of the application.

[0017] Fig. 1 is a block diagram of a power module according to an embodiment of the present application; Fig. 2 is a schematic diagram of a power module according to an embodiment of the present application; Fig. 3 is a schematic diagram of a power module according to an embodiment of the present application; Fig. 4 is a schematic diagram of a power module according to an embodiment of the present application; Fig. 5 is a schematic diagram of a power module according to an embodiment of the present application; Fig. 6 is a schematic diagram of a power module according to an embodiment of the present application. DETAILED DESCRIPTION

[0018] The embodiments of the present application are described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present application are described in detail below.

[0019] The power module according to the embodiments of the present application is described below with reference to Figs. 1-6.

[0020] In some embodiments of the present application, as shown in Fig. 1, a block diagram of a power module according to an embodiment of the present application is shown, wherein the power module 10 includes a base plate 1, a power generation phase unit 2, and a voltage boosting phase unit 3.

[0021] Specifically, the voltage boosting phase unit 3 and the power generation phase unit 2 are both arranged on the base plate 1, the negative direct current terminal of the power generation phase unit 2 is electrically connected to the negative direct current terminal of the voltage boosting phase unit 3, and the positive direct current terminal of the power generation phase unit 2 is electrically connected to the positive direct current terminal of the voltage boosting phase unit 3.

[0022] In some embodiments of the present application, the power generation phase unit 2 includes a multiphase bridge arm 21, a plurality of power generation phase alternating current terminals, at least one power generation phase positive direct current terminal, and at least one power generation phase negative direct current terminal. The power generation phase unit 2 has both power generation and charging functions, i.e., when the new energy hybrid vehicle is running, the power generation phase unit 2 rectifies the three-phase alternating current generated by the vehicle's internal combustion engine generator into direct current to charge the vehicle's battery or drive other equipment in the vehicle to work.

[0023] According to the power module 10 of the embodiment of the present application, the boost phase unit 3 and the power generation phase unit 2 are arranged on the bottom plate 1, and the negative DC end of the power generation phase unit 2 is electrically connected with the negative DC end of the boost phase unit 3. The power module 10 integrates two functional blocks of the boost phase and the power generation phase. The power generation phase unit 2 has the functions of power generation and charging, and the boost phase unit 3 has the function of voltage boost. The power generation phase unit 2 and the boost phase unit 3 can be used together, and the functionality of the power module 10 is improved. In addition, the power generation phase unit 2 and the boost phase unit 3 are integrated on the bottom plate 1. In subsequent design, the power generation phase unit 2 and the boost phase unit 3 can share a heat sink. The internal space of the vehicle is saved, and the cost is also saved.

[0024] Specifically, the AC end of the multiphase bridge arm 21 is in one-to-one correspondence with and electrically connected with the plurality of power generation phase AC terminals. The at least one power generation phase positive DC terminal is electrically connected with the positive DC end of the multiphase bridge arm 21. The at least one power generation phase negative DC terminal is electrically connected with the negative DC end of the multiphase bridge arm 21.

[0025] In addition, in some other embodiments of the present application, the boost phase unit 3 includes an H half-bridge 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. The H half-bridge bridge arm 31 of the boost phase unit 3 has the function of voltage boost, and can improve the voltage of the DC power generated by the power generation phase unit 2, so as to meet the requirements of automobile battery charging and other applications.

[0026] Specifically, the AC end of the H half-bridge bridge arm 31 is in one-to-one correspondence with and electrically connected with the two boost phase AC terminals. The at least one boost phase positive DC terminal is electrically connected with the positive DC end of the H half-bridge bridge arm 31. The at least one boost phase negative DC terminal is electrically connected with the negative DC end of the H half-bridge bridge arm 31. In this way, the negative DC end of the multiphase bridge arm 21 is electrically connected with the negative DC end of the H half-bridge bridge arm 31 through the at least one power generation phase negative DC terminal and the at least one boost phase negative DC terminal. The boost phase unit 3 and the power generation phase unit 2 can be used together, and the functionality of the power module 10 is improved.

[0027] In some embodiments, the alternating current of the power generation phase unit 2 flows in from the alternating current end of the power generation phase unit 2, a direct current bias current is added to the positive direct current end of the power generation phase unit 2, and the direct current output current obtained by rectifying the core of the power generation phase unit 2 is output from the negative direct current end of the power generation phase unit 2. The direct current of the voltage boosting phase unit 3 is input from the negative direct current end of the voltage boosting phase unit 3 connected to the negative direct current end of the power generation phase unit 2, a direct current bias current is added to the positive direct current end of the voltage boosting phase unit 3, the IGBT chip of the upper bridge arm of the H half-bridge bridge arm 21 in the voltage boosting phase unit 3 and the FRD chip of the lower bridge arm 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 capacitors and other elements arranged outside the power module 10 to improve the voltage of the input current. Finally, a higher voltage direct current output current with opposite polarity to the input current is output from the alternating current end of the voltage boosting phase unit 3.

[0028] In the circuit structure of the power module 10, whether it is the voltage boosting phase unit 2 or the power generation phase unit 3, each half-bridge structure in it is provided with a dedicated alternating current end, which can be used to externally connect different circuits or devices, so that in actual application, different full-bridge can play a role alone, or two units are used in combination, improving the functional richness and selection flexibility of the power module 10.

[0029] Specifically, the power generation phase unit 2 of the embodiment of the present application and the H half-bridge bridge arm 31 of the voltage boosting phase unit 3 can be understood in combination with FIGS. 2-4. FIG. 2 is a circuit structure diagram of a multi-phase bridge arm and an H half-bridge bridge arm according to an embodiment of the present application; FIG. 3 is a circuit structure diagram of a multi-phase bridge arm and an H half-bridge bridge arm according to another embodiment of the present application; and FIG. 4 is a circuit structure diagram of a multi-phase bridge arm and an H half-bridge bridge arm according to still another embodiment of the present application.

[0030] As shown in FIG. 2, 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 voltage boosting 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, that is, the charging substrate N, and the two half-bridges in the voltage boosting phase unit 3 are respectively located on two independent substrates, that is, the first voltage boosting substrate M1 and the second voltage boosting substrate M2. Each half-bridge structure in the power module 10 has a dedicated alternating current terminal, which can be matched with each other, thereby improving the functional flexibility of the power module 10.

[0031] 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 respectively used for connecting three power generation phase AC terminals, and the first half-bridge bridge arm 311 and the second half-bridge bridge arm 312 of the voltage boosting phase unit 3 can be respectively used for connecting two voltage boosting phase AC terminals. Each AC terminal can be used for externally connecting different circuits or devices, so that in actual application, the voltage boosting phase unit 2 and the power generation phase unit 3 can both function independently and be used in combination, improving the functional richness and selection flexibility of the power module 10.

[0032] As shown in FIG. 3, compared with the power module 10 shown in FIG. 2, the layout of the power generation phase unit 2 includes three half-bridge structures unchanged, and the H half-bridge bridge arm 31 in the voltage boosting phase unit 3 is merged onto a substrate, i.e., the voltage boosting substrate M, so as to reduce the substrate area occupied by the voltage boosting phase unit 2 as a whole and improve the power density of the power module 10 as a whole.

[0033] In addition, as shown in FIG. 4, the number of half-bridge structures in the three-phase bridge arms 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, and the third phase bridge arm 213 includes a fifth sub-bridge arm W1 and a sixth sub-bridge arm W2, the six sub-bridge arms are respectively used for electrical connection with six power generation phase AC terminals, and the U phase and the V phase composed of two half-bridges, i.e., the first phase bridge arm 211 and the second phase bridge arm 212, are located on the same substrate, i.e., the first charging substrate N1, and can be collectively referred to as the U+V phase, and the W phase composed of two half-bridges, i.e., the third phase bridge arm 213, is separately located on a substrate, i.e., the second charging substrate N2, and when the U, V and W phases work at the same time, the three-phase AC generated by the generator is rectified into DC; when any two phase bridge arms work at the same time, general AC can be rectified into DC; and the third phase bridge arm 213 which exclusively occupies a substrate can enhance performance by replacing chips, thereby improving the power upper limit of the power generation phase unit 2 as a whole.

[0034] In summary, the embodiments of the present application integrate multiple circuit structures in a single module, so that the power module 10 of the embodiments of the present application has multiple functions such as power generation and voltage boosting, can be used in different working modes according to different application scenarios, can replace multiple single-function modules used in combination in electric control, can share a heat sink for the voltage boosting phase unit 2 and the power generation phase unit 3 in subsequent design, reduces the number of heat dissipation devices used for supporting modules and improves the power density, effectively saves the internal space of the vehicle, and reduces the overall cost.

[0035] In some embodiments of the present application, the design of the power generation phase unit 2, the plurality of power generation phase AC terminals, the at least one power generation phase positive DC terminal and the at least one power generation phase negative DC terminal can be understood in combination with FIG. 2, FIG. 3, FIG. 5 and FIG. 6. FIG. 5 is a schematic diagram of a power module according to an embodiment of the present application; FIG. 6 is a schematic diagram of a power module according to another embodiment of the present application. In FIG. 5 and FIG. 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.

[0036] In FIG. 5 or FIG. 6, the plurality of power generation phase AC terminals includes 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.

[0037] Specifically, as can be known in combination with FIG. 2, FIG. 3, FIG. 5 and FIG. 6, the AC terminal of the first phase bridge arm 211 is electrically connected to the first power generation phase AC terminal 1A; the AC terminal of the second phase bridge arm 212 is electrically connected to the second power generation phase AC terminal 2A; and the AC terminal of the third phase bridge arm 213 is electrically connected to the third power generation phase AC terminal 3A.

[0038] In FIG. 5 or FIG. 6, the plurality of power generation phase AC terminals includes 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.

[0039] Specifically, in some embodiments, the at least one power generation phase positive DC terminal includes a first power generation phase positive DC terminal 1B, and the positive DC terminals of the first phase bridge arm 211, the second phase bridge arm 212 and the third phase bridge arm 213 are all electrically connected to the first power generation phase positive DC terminal 1B; and the 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 terminals of the first phase bridge arm 211, the second phase bridge arm 212 and 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.

[0040] As shown in FIG. 5 or FIG. 6, the first power generation phase positive direct current terminal 1B is connected with the upper bridge arm area 22 of the power generation phase unit, the first power generation phase alternating current terminal 1A, the second power generation phase alternating current terminal 2A and the third power generation phase alternating current terminal 3A are respectively connected with the lower bridge arm area 23 of the power generation phase unit, and the lower bridge arm area 23 of the power generation phase unit is connected with 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 direct current area 24 of the power generation phase unit are connected through a bonding wire, and the negative direct current area 24 of the power generation phase unit is connected with the first power generation phase negative direct current terminal 1C and the second power generation phase negative direct current terminal 2C.

[0041] In some embodiments of the present application, the design of the boost phase unit 3, the two boost phase alternating current terminals, the at least one boost phase positive direct current terminal and the at least one boost phase negative direct current terminal can be understood in combination with FIG. 2 and FIG. 5. In FIG. 5, the H half-bridge bridge arm 31, the first half-bridge bridge arm 311 and the second half-bridge bridge arm 312 are not shown.

[0042] As shown in FIG. 5, the two boost phase alternating current terminals include the first boost phase alternating current terminal 1D and the second boost phase alternating current terminal 2D, and the H half-bridge bridge arm 31 includes the first half-bridge bridge arm 311 and the second half-bridge bridge arm 312.

[0043] Specifically, as shown in FIG. 2 and FIG. 5, the first half-bridge bridge arm 311 is located on the first boost substrate M1, and the alternating current end of the first half-bridge bridge arm 311 is used for electrical connection with the first boost phase alternating current terminal 1D; the second half-bridge bridge arm 312 is located on the second boost substrate M2, and the alternating current end of the second half-bridge bridge arm 312 is used for electrical connection with the second boost phase alternating current terminal 2D, wherein the first boost substrate M1 and the second boost substrate M2 are arranged on the bottom plate 1, and the first boost substrate M1 is arranged between the charging substrate N and the second boost substrate M2; wherein the upper bridge arm of the first half-bridge bridge arm 311 and the upper bridge arm of the second half-bridge bridge arm 312 include the positive direct current end of the H half-bridge bridge arm 31, and the positive direct current end of the H half-bridge bridge arm 31 is used for electrical connection with the at least one boost phase positive direct current terminal; the lower bridge arm of the first half-bridge bridge arm 311 and the lower bridge arm of the first half-bridge bridge arm 311 include the negative direct current end of the H half-bridge bridge arm 31, and the negative direct current end of the H half-bridge bridge arm 31 is used for electrical connection with the at least one boost phase negative direct current terminal.

[0044] In some embodiments of the present application, the at least one positive DC terminal of the boost phase includes a first positive DC terminal 1E of the boost phase and a second positive DC terminal 2E of the boost phase, the positive DC terminal of the first half-bridge arm 311 is connected to the first positive DC terminal 1E of the boost phase, and the positive DC terminal of the second half-bridge arm 312 is connected to the second positive DC terminal 2E of the boost phase; the at least one negative DC terminal of the boost phase includes a first negative DC terminal 1F of the boost phase, and the negative DC terminal of the first half-bridge arm 311 and the negative DC terminal of the second half-bridge arm 312 are both electrically connected to the first negative DC terminal 1F of the boost phase.

[0045] Specifically, as shown in FIG. 5, the first positive DC terminal 1E of the boost phase and the second positive DC terminal 2E of the boost phase are connected with the upper bridge arm region 32 of the boost phase unit, the first AC terminal 1D of the boost phase and the second AC terminal 2D of the boost phase are connected with 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 with the upper surface of the upper bridge arm chip of the boost phase unit 3 through a bonding wire; the upper surface of the lower bridge arm chip 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 connected with the first negative DC terminal 1F of the boost phase at the same time. Based on this, the two half-bridge layouts in the boost phase unit 3 are respectively located on two independent substrates, i.e., 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 matched and used to improve the functional flexibility of the power module 10.

[0046] In some embodiments of the present application, the design of the power generation phase unit 2, the plurality of power generation phase AC terminals, the at least one positive DC terminal of the power generation phase, and the at least one negative DC terminal of the power generation phase of another embodiment of the present application can be understood in combination with FIG. 4.

[0047] In some embodiments of the present application, the at least one positive DC terminal of the boost phase includes a first positive DC terminal 1E of the boost phase and a second positive DC terminal 2E of the boost phase, the positive DC terminal of the first half-bridge arm 311 is connected to the first positive DC terminal 1E of the boost phase, and the positive DC terminal of the second half-bridge arm 312 is connected to the second positive DC terminal 2E of the boost phase; the at least one negative DC terminal of the boost phase includes a first negative DC terminal 1F of the boost phase, and the negative DC terminal of the first half-bridge arm 311 and the negative DC terminal of the second half-bridge arm 312 are both electrically connected to the first negative DC terminal 1F of the boost phase.

[0048] As shown in FIG. 4, 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 configured to be electrically connected with the first power generation phase AC terminal. The AC end of the second sub-bridge arm U2 is configured to be electrically connected with 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 configured to be electrically connected with the third power generation phase AC terminal. The AC end of the fourth sub-bridge arm V2 is configured to be electrically connected with 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 configured to be electrically connected with the fifth power generation phase AC terminal. The AC end of the sixth sub-bridge arm W2 is configured to be electrically connected with the sixth power generation phase AC terminal.

[0049] The first phase bridge arm 211 and the second phase bridge arm 212 are located on the first charging substrate N1, and 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 comprise 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 configured to be electrically connected with the first power generation phase positive DC terminal. The upper bridge arm of the fifth sub-bridge arm W1 and the upper bridge arm of the sixth sub-bridge arm W2 comprise the second positive DC end of the multi-phase bridge arm 21. The second positive DC end of the multi-phase bridge arm 21 is configured to be electrically connected with the second power generation phase positive DC terminal. 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 comprise the first negative DC end of the multi-phase bridge arm 21. The first negative DC end of the multi-phase bridge arm 21 is configured to be electrically connected with the first power generation phase negative DC terminal. The lower bridge arm of the fifth sub-bridge arm W1 and the lower bridge arm of the sixth sub-bridge arm W2 comprise the second negative DC end of the multi-phase bridge arm 21. The second negative DC end of the multi-phase bridge arm 21 is configured to be electrically connected with the second power generation phase negative DC terminal. 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. Meanwhile, the third phase bridge arm 213 which exclusively occupies one substrate can enhance the performance by replacing the chip, thereby improving the power upper limit of the entire power generation phase unit 2.

[0050] In some embodiments of the present application, the design of the boost phase unit 3, the two boost phase AC terminals, the at least one boost phase positive DC terminal and the at least one boost phase negative DC terminal of the embodiments of the present application can be understood in combination with FIG. 3, FIG. 4 and FIG. 6. In FIG. 6, the H half-bridge bridge arm 31, the first half-bridge bridge arm 311 and the second half-bridge bridge arm 312 are not shown.

[0051] In some embodiments, as shown in FIG. 6, 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 bridge arm 31 includes a first half-bridge bridge arm 311 and a second half-bridge bridge arm 312, wherein the AC end of the first half-bridge bridge arm 311 is configured to be electrically connected to the first boost phase AC terminal 1D, and the AC end of the second half-bridge bridge arm 312 is configured to be electrically connected to the second boost phase AC terminal 2D.

[0052] Specifically, as shown in FIGS. 3 and 6, the first half-bridge bridge arm 311 and the second half-bridge bridge arm 312 are located on the same boost substrate M, which is arranged on the bottom plate 1. The upper bridge arm of the first half-bridge bridge arm 311 and the upper bridge arm of the second half-bridge bridge arm 312 include the positive DC end of the H half-bridge bridge arm 31, which is configured to be electrically connected to at least one boost phase positive DC terminal. The lower bridge arm of the first half-bridge bridge arm 311 and the lower bridge arm of the second half-bridge bridge arm 312 include the negative DC end of the H half-bridge bridge arm 31, which is configured 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.

[0053] In some embodiments, as shown in FIG. 6, 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 bridge arm 31 includes a first half-bridge bridge arm 311 and a second half-bridge bridge arm 312, wherein the AC end of the first half-bridge bridge arm 311 is configured to be electrically connected to the first boost phase AC terminal 1D, and the AC end of the second half-bridge bridge arm 312 is configured to be electrically connected to the second boost phase AC terminal 2D.

[0054] Specifically, as shown in FIG. 6, 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 bridge arm 311 and the second half-bridge 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 externally connect different circuits or devices, so that in actual application, the boost phase unit 2 and the power generation phase unit 3 can both function independently and be used in combination, improving the functionality and flexibility of the power module 10.

[0055] In some 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 bridge arm 31 includes a first half-bridge bridge arm 311 and a second half-bridge bridge arm 312, wherein the AC end of the first half-bridge bridge arm 311 is configured to be electrically connected to the first boost phase AC terminal; and the AC end of the second half-bridge bridge arm 312 is configured to be electrically connected to the second boost phase AC terminal.

[0056] Specifically, as shown in FIG. 4, the first half-bridge bridge arm 311 and the second half-bridge bridge arm 312 are located on the same boost substrate M, the boost substrate M is arranged on the bottom plate 1, the upper bridge arms of the first half-bridge bridge arm 311 and the second half-bridge bridge arm 312 include the positive DC end of the H half-bridge bridge arm 31, the positive DC end of the H half-bridge bridge arm 31 is configured to be electrically connected to at least one boost phase positive DC terminal, the lower bridge arms of the first half-bridge bridge arm 311 and the second half-bridge bridge arm 312 include the negative DC end of the H half-bridge bridge arm 31, the negative DC end of the H half-bridge bridge arm 31 is configured to be electrically connected to at least one boost phase negative DC terminal, and the second charging substrate N2 is arranged between the first charging substrate N1 and the boost substrate M.

[0057] The at least one positive direct current terminal of the boost phase can include a first positive direct current terminal of the boost phase and a second positive direct current terminal of the boost phase, and the positive direct current end of the first half-bridge arm 311 is adapted to be electrically connected with the first positive direct current terminal of the boost phase, and the positive direct current end of the second half-bridge arm 312 is adapted to be electrically connected with the second positive direct current terminal of the boost phase. The at least one negative direct current terminal of the boost phase can include a first negative direct current terminal of the boost phase, and the negative direct current end of the first half-bridge arm 311 and the negative direct current end of the second half-bridge arm 312 are both adapted to be electrically connected with the first negative direct current terminal of the boost phase. Based on this, the H half-bridge arm 31 in the boost phase unit 2 is arranged on the boost substrate M, which can reduce the substrate area occupied by the boost phase unit 2 as a whole and improve the power density of the power module 10 as a whole.

[0058] Based on the above, the power module 10 proposed in the embodiments of the present application integrates multiple circuit structures in a single module, so that the power module 10 has multiple functions such as power generation and voltage boosting at the same time, and can replace multiple single-function modules used in parallel in the electric control, so that the boost phase unit 2 and the power generation phase unit 3 can share a heat sink in subsequent design, thereby reducing the number of heat dissipation devices used in the supporting modules and improving the power density, effectively saving the internal space of the vehicle and reducing the overall cost.

[0059] In order to achieve the above purpose, the second aspect of the present application proposes an electric power electronic device, as shown in FIG. 7, which is a block diagram of an electric power electronic device according to an embodiment of the present application. The electric power electronic device 1000 includes the power module 10 of the above embodiment.

[0060] The electric power electronic device 1000 proposed in the embodiments of the present application is provided with the power module 10 of the above embodiment, which integrates two functional blocks of boost phase and power generation phase, so that the power module 10 has multiple functions such as power generation and voltage boosting at the same time, and can replace multiple single-function modules used in parallel in the electric control, thereby improving the functionality of the power module 10. In addition, the number of heat dissipation devices used in the supporting modules in the electric power electronic device 1000 can be effectively reduced, which is also conducive to improving the power density of the power module 10, thereby effectively saving the internal space of the electric power electronic device 1000 and reducing the overall cost of the electric power electronic device 1000.

[0061] In order to achieve the above purpose, the third aspect of the present application proposes a vehicle, as shown in FIG. 8, which is a block diagram of a vehicle according to an embodiment of the present application. 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.

[0062] According to the vehicle 100 provided by the embodiment of the present application, by arranging the power module 10 of the above embodiment, the power module 10 integrates the two function blocks of the boost phase and the power generation phase, so that the power module 10 has multiple functions such as power generation and voltage boosting, and can replace multiple single-function modules used in combination in the electric control, thereby improving the function richness of the power module 10. Moreover, the use quantity of the heat dissipation equipment of the matched modules can be effectively reduced, and the power density of the power module 10 is also improved, thereby effectively saving the internal space of the vehicle 100 and reducing the overall cost of the vehicle 100

[0063] The other configurations and operations of the vehicle 100 and the power device 10 according to the embodiment of the present application are known to those skilled in the art, and will not be described in detail here.

[0064] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example.

[0065] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A power module (10), wherein, include: Base plate (1); Power generation phase unit (2); The boost phase unit (3) and the power generation phase unit (2) are both disposed on the base plate (1). The negative DC terminal of the power generation phase unit (2) is electrically connected to the negative DC terminal of the boost phase unit (3), and the positive DC terminal of the power generation phase unit (2) is electrically connected to the positive DC terminal of the boost phase unit (3).

2. The power module (10) according to claim 1, wherein, The power generation phase unit (2) includes: Multiphase bridge arm (21); Multiple power generation phase AC terminals, the AC terminals of the multiphase bridge arm (21) correspond one-to-one with the multiple power generation phase AC terminals and are electrically connected; At least one positive DC terminal of the generating phase, and at least one positive DC terminal of the generating phase is electrically connected to the positive DC terminal of the multiphase bridge arm (21); At least one negative DC terminal of the generating phase, and at least one of the negative DC terminals of the generating phase is electrically connected to the negative DC terminal of the multiphase bridge arm (21).

3. The power module (10) according to claim 2, wherein, The boost phase unit (3) includes: H half-bridge arm (31); Two boost phase AC terminals, the AC terminals of the H half-bridge arm (31) correspond one-to-one with the two boost phase AC terminals and are electrically connected; At least one positive DC terminal of the boost phase, and at least one of the positive DC terminals of the boost phase is electrically connected to the positive DC terminal of the H half-bridge arm (31); At least one boost phase negative DC terminal, and at least one of the boost phase negative DC terminals is electrically connected to the negative DC terminal of the H half-bridge arm (31).

4. The power module (10) according to claim 2 or 3, wherein, The plurality of 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); The multiphase bridge arm (21) includes: The first phase bridge arm (211) is electrically connected to the first power generation phase AC terminal (1A). The second phase bridge arm (212) is electrically connected to the second power generation phase AC terminal (2A). The third phase bridge arm (213) is electrically connected to the third power generation phase AC terminal (3A). 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, which is disposed on the base 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 terminal of the multiphase bridge arm (21). The positive DC terminal of the multiphase bridge arm (21) is used to be electrically connected to at least one positive DC terminal of the generating 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 terminal of the multiphase bridge arm (21). The negative DC terminal of the multiphase bridge arm (21) is used to be electrically connected to at least one negative DC terminal of the generating phase.

5. The power module (10) according to claim 4, wherein, At least one of the positive DC terminals of the power generation phase includes a first positive DC terminal (1B) of the power generation phase, wherein the positive DC terminal of the first phase bridge arm (211), the positive DC terminal of the second phase bridge arm (212) and the positive DC terminal of the third phase bridge arm (213) are all electrically connected to the first positive DC terminal (1B) of the power generation phase. At least one of the negative DC terminals of the generating phase includes a first negative DC terminal (1C) and a second negative DC terminal (2C), wherein the negative DC terminal of the first phase bridge arm (211), the negative DC terminal of the second phase bridge arm (212), and the negative DC terminal of the third phase bridge arm (213) are all electrically connected to the first negative DC terminal (1C) and the second negative DC terminal (2C).

6. The power module (10) according to claim 3, wherein, The two boost phase AC terminals include a first boost phase AC terminal (1D) and a second boost phase AC terminal (2D); The H half-bridge arm (31) includes: The first half-bridge arm (311) is located on the first boost substrate (M1), and the AC terminal of the first half-bridge arm (311) is used to be electrically connected to the AC terminal (1D) of the first boost phase. The second half-bridge arm (312) is located on the second boost substrate (M2). The AC terminal of the second half-bridge arm (312) is used to be electrically connected to the AC terminal (2D) of the second boost phase. The first boost substrate (M1) and the second boost substrate (M2) are both disposed on the base plate (1), and the first boost substrate (M1) is disposed between the charging substrate and the second boost substrate (M2). The upper arm of the first half-bridge arm (311) and the upper arm of the second half-bridge arm (312) include the positive DC terminal of the H half-bridge arm (31), and the positive DC terminal of the H half-bridge arm (31) is used to be electrically connected to at least one positive DC terminal of the boost phase. The lower arm of the first half-bridge arm (311) and the lower arm of the second half-bridge arm (312) include the negative DC terminal of the H half-bridge arm (31), and the negative DC terminal of the H half-bridge arm (31) is used to be electrically connected to at least one negative DC terminal of the boost phase.

7. The power module (10) according to claim 6, wherein, At least one of the boost phase positive DC terminals includes a first boost phase positive DC terminal (1E) and a second boost phase positive DC terminal (2E), the positive DC terminal of the first half-bridge arm (311) is connected to the first boost phase positive DC terminal (1E), and the positive DC terminal of the second half-bridge arm (312) is connected to the second boost phase positive DC terminal (2E); At least one of the boost phase negative DC terminals includes a first boost phase negative DC terminal (1F), wherein the negative DC terminal of the first half-bridge arm (311) and the negative DC terminal of the second half-bridge arm (312) are both electrically connected to the first boost phase negative DC terminal (2F).

8. The power module (10) according to any one of claims 3, 6, and 7, wherein, The plurality of AC terminals for the generating phases include a first AC terminal for the generating phase, a second AC terminal for the generating phase, a third AC terminal for the generating phase, a fourth AC terminal for the generating phase, a fifth AC terminal for the generating phase, and a sixth AC terminal for the generating phase. The at least one negative DC terminal for the boost phase includes a negative DC terminal for the first DC terminal for the generating phase and a negative DC terminal for the second DC terminal for the generating phase. The at least one positive DC terminal for the generating phase includes a positive DC terminal for the first DC terminal for the generating phase and a positive DC terminal for the second DC terminal for the generating phase. The multiphase bridge arm (21) includes: The first phase bridge arm (211) includes a first sub-bridge arm (U1) and a second sub-bridge arm (U2). The AC terminal of the first sub-bridge arm (U1) is used to be electrically connected to the AC terminal of the first generating phase, and the AC terminal of the second sub-bridge arm (U2) is used to be electrically connected to the AC terminal of the second generating phase. The second phase bridge arm (212) includes a third sub-bridge arm (V1) and a fourth sub-bridge arm (V2). The AC terminal of the third sub-bridge arm (V1) is used to be electrically connected to the AC terminal of the third power generation phase, and the AC terminal of the fourth sub-bridge arm (V2) is used to be electrically connected to the AC terminal of the fourth power generation phase. The third phase bridge arm (213) includes a fifth sub-bridge arm (W1) and a sixth sub-bridge arm (W2). The AC terminal of the fifth sub-bridge arm (W1) is used to be electrically connected to the AC terminal of the fifth generating phase, and the AC terminal of the sixth sub-bridge arm (W2) is used to be electrically connected to the AC terminal of the sixth generating phase. The first phase bridge arm (211) and the second phase bridge arm (212) are located on the first charging substrate (N1), and 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 located on the base 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 terminal of the multiphase bridge arm (21). The first positive DC terminal of the multiphase bridge arm (21) is used to be electrically connected to the positive DC terminal of the first generating 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 multiphase... The second positive DC terminal of the bridge arm (21) is used to be electrically connected to the positive DC terminal of the second generating 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 multiphase bridge arm (21). The first negative DC terminal of the multiphase bridge arm (21) is used to be electrically connected to the negative DC terminal of the first generating 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 multiphase bridge arm (21). The second negative DC terminal of the multiphase bridge arm (21) is used to be electrically connected to the negative DC terminal of the second generating phase.

9. The power module (10) according to any one of claims 3, 6-8, wherein, 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: The first half-bridge arm (311) has an AC terminal for electrical connection with the first boost phase AC terminal (1D). The second half-bridge arm (312) has an AC terminal for electrical connection with the second boost phase AC terminal (2D). The first half-bridge arm (311) and the second half-bridge arm (312) are both located on the same boost substrate. The boost substrate is disposed on the base plate (1). The upper arm of the first half-bridge arm (311) and the upper arm of the second half-bridge arm (312) include the positive DC terminal of the H half-bridge arm (31). The positive DC terminal of the H half-bridge arm (31) is used to be electrically connected to at least one positive DC terminal of the boost phase. The lower arm of the first half-bridge arm (311) and the lower arm of the second half-bridge arm (312) include the negative DC terminal of the H half-bridge arm (31). The negative DC terminal of the H half-bridge arm (31) is used to be electrically connected to at least one negative DC terminal of the boost phase. The boost substrate is disposed on one side of the charging substrate.

10. The power module (10) according to any one of claims 3, 6-8, wherein, 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: The first half-bridge arm (311) has an AC terminal for electrical connection with the first boost phase AC terminal (1D). The second half-bridge arm (312) has an AC terminal for electrical connection with the second boost phase AC terminal (2D). The first half-bridge arm (311) and the second half-bridge arm (312) are both located on the same boost substrate. The boost substrate is disposed on the base plate (1). The upper arm of the first half-bridge arm (311) and the upper arm of the second half-bridge arm (312) include the positive DC terminal of the H half-bridge arm (31). The positive DC terminal of the H half-bridge arm (31) is used to be electrically connected to at least one positive DC terminal of the boost phase. The lower arm of the first half-bridge arm (311) and the lower arm of the second half-bridge arm (312) include the negative DC terminal of the H half-bridge arm (31). The negative DC terminal of the H half-bridge arm (31) is used to be electrically connected to at least one negative DC terminal of the boost phase. The second charging substrate (N2) is disposed between the first charging substrate (N1) and the boost substrate.

11. The power module (10) according to claim 9 or 10, wherein, 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 terminal of the first half-bridge arm (311) is electrically connected to the first boost phase positive DC terminal, and the positive DC terminal of the second half-bridge arm (312) 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, wherein the negative DC terminal of the first half-bridge arm (311) and the negative DC terminal of the second half-bridge arm (312) are both electrically connected to the first boost phase negative DC terminal.

12. A power electronic device (1000), wherein, Includes the power module (10) according to any one of claims 1-11.

13. A vehicle (100), wherein, The vehicle includes a vehicle body (20) and a power module (10) as described in any one of claims 1-11, the power module (10) being disposed on the vehicle body (20).

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