WO2023036213A1

WO2023036213A1 - Power conversion apparatus, power distribution system, and vehicle

Info

Publication number: WO2023036213A1
Application number: PCT/CN2022/117684
Authority: WO
Inventors: 王震
Original assignee: 蔚来汽车科技(安徽)有限公司
Priority date: 2021-09-10
Filing date: 2022-09-08
Publication date: 2023-03-16
Also published as: CN113726149A

Abstract

A power conversion apparatus (1000), a power distribution system, and a vehicle. The power conversion apparatus (1000) comprises: a DC-DC converter (110), which is used for converting electric energy input into the power conversion apparatus (1000); a first group of output ports (130); and a first group of electronic fuses (120), which are used for turning on or off the path for the electric energy converted by the DC-DC converter (110), the electric energy converted by the DC-DC converter (110) being transmitted from the DC-DC converter (110) to the first group of output ports (130). By using the power conversion apparatus (1000), the DC-DC converter (110) and the first group of electronic fuses (120) are integrated, thereby effectively reducing wire harnesses and connectors, reducing line loss, and saving space resources and processor resources.

Description

Power conversion equipment, power distribution system and vehicle

technical field

The invention relates to the field of power distribution, in particular to power conversion equipment, a power distribution system and a vehicle.

Background technique

Generally, as an important power electronic device, a DC-DC converter can use modulation techniques such as PWM to convert the input direct current according to requirements, for example, according to certain voltage requirements, current requirements, and so on. In automobiles, DC-DC converters are often used to convert the vehicle's high-voltage direct current into low-voltage direct current, thereby distributing power to various low-voltage loads.

In order to ensure the safety and mutual independence of each power supply circuit from the DC-DC converter to the low-voltage load, a low-voltage fuse can be configured for each power supply circuit. However, as the low-voltage load in automobiles (especially electric vehicles) increases day by day, the low-voltage network in the automobile is also becoming more and more complex, and the number of fuses configured is also increasing.

Therefore, there is a need for an improved technical solution for power distribution systems.

Contents of the invention

According to an aspect of the present invention, a power conversion device is provided. The power conversion device includes: a DC-DC converter, which is used to convert the electric energy input into the power conversion device; a first group of output ports; and a first group of electronic fuses, which are used to turn on or off the Transformed electrical energy is transmitted from the DC-DC converter to the path of the first set of output ports.

As an alternative or supplement to the above solution, the power conversion device according to an embodiment of the present invention further includes a control unit, wherein the control unit is used to control the DC-DC converter and the first group of electronic fuses .

As an alternative or supplement to the above solution, in the power conversion device according to an embodiment of the present invention, the control unit cooperatively controls the switching on or off of the DC-DC converter and the first group of electronic fuses Each of the conduction or disconnection.

As an alternative or supplement to the above solution, in the power conversion device according to an embodiment of the present invention, the control unit provides at least one of the following protections for the DC-DC converter: output overvoltage protection, output Under-voltage protection, output over-current protection, output short-circuit protection, and over-temperature protection.

As an alternative or supplement to the above solution, in the power conversion device according to an embodiment of the present invention, the control component monitors the states of the DC-DC converter and/or the first group of electronic fuses.

As an alternative or supplement to the above solution, the power conversion device according to an embodiment of the present invention further includes a communication component, wherein the communication component is configured to enable the control component to communicate with the outside.

As an alternative or supplement to the above solution, the power conversion device according to an embodiment of the present invention further includes a heat dissipation component, wherein the DC-DC converter and the first group of electronic fuses share the heat dissipation component to perform Heat dissipation.

According to another aspect of the present invention, a power distribution system is provided. The power distribution system includes any one of the aforementioned power conversion devices, wherein the power conversion device further includes a second group of output ports; a first group of loads that receive the power conversion device from the power conversion device through the first group of output ports the transformed electrical energy; a second set of loads that receive the transformed electrical energy from the power conversion device via the second set of output ports; and a second set of electronic fuses disposed on the second set of Between the output port and the second group of loads and close to the second group of loads, and for turning on or off the converted electric energy transmitted from the second group of output ports to the second group of loads path.

As an alternative or supplement to the above solution, in the power distribution system according to an embodiment of the present invention, the second group of electronic fuses includes a plurality of electronic fuses, the second group of loads includes a plurality of loads, and the The plurality of electronic fuses respectively correspond to the plurality of loads. And wherein, one transmission line is used to transmit the transformed electric energy from the second set of output ports to a split point close to the second set of loads, and then a plurality of transmission lines are used to transform the transformed electric energy from the split point The electric energy of is transmitted to the corresponding load through each electronic fuse in the second group of electronic fuses respectively.

As an alternative or supplement to the above solution, in the power distribution system according to an embodiment of the present invention, the first group of output ports and the second group of output ports are completely different output ports; or the first group of The output ports at least partially coincide with the second set of output ports.

As an alternative or supplement to the above solution, in the power distribution system according to an embodiment of the present invention, each electronic fuse in the second group of electronic fuses is integrated into a corresponding load.

According to still another aspect of the present invention, there is provided a vehicle including any one of the aforementioned power distribution systems.

Description of drawings

The above and other objects and advantages of the present invention will become more fully apparent from the following detailed description in conjunction with the accompanying drawings.

Fig. 1 shows a power conversion device 1000 according to one embodiment of the present invention.

Figure 2 illustrates a power distribution system 2000 according to one embodiment of the invention.

Detailed ways

The power conversion equipment, power distribution system and vehicle involved in the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be noted that the following specific descriptions are only exemplary rather than restrictive, and they are intended to provide a basic understanding of the present invention, but not intended to limit the scope of protection of the present invention.

In the context of the present invention, the terms "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe the sequence of objects in terms of time, space, size, etc. Furthermore, the terms "comprising", "having" and similar expressions herein are intended to mean a non-exclusive inclusion unless specifically stated otherwise. Also, the terms "vehicle", "automobile" or other similar terms herein include motor vehicles in general, such as passenger vehicles (including sport utility vehicles, buses, trucks, etc.), various commercial vehicles, ships, Aircraft, etc., and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, etc. A hybrid vehicle is a vehicle with two or more sources of power, such as gasoline-powered and electric vehicles.

Hereinafter, exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 shows a power conversion device 1000 according to one embodiment of the present invention. The power conversion device 1000 includes a DC-DC converter 110 , a first set of output ports 130 and a first set of electronic fuses 120 .

Wherein, the DC-DC converter 110 is used to convert the electric energy input into the power conversion device 1000 . Specifically, the DC-DC converter 110 may convert an input high voltage into a low voltage, for example, convert an input voltage of 48V into a common voltage level of 12V for low-voltage loads in a vehicle. In another embodiment, the DC-DC converter 110 can convert the input electric energy into a specific current value.

The electric energy converted by the DC-DC converter 110 is transmitted to the first group of output ports 130 through the first group of electronic fuses 120 . Wherein, the first group of output ports 130 may be constituted by a group of power connectors. The first group of electronic fuses 120 is used to switch on or off the path of the transformed electric energy transmitted from the DC-DC converter 110 to the first group of output ports 130 .

Although not shown in FIG. 1 , first set of electronic fuses 120 may include one or more electronic fuses, and correspondingly, first set of output ports 130 may include one or more output ports. Each electronic fuse in the first group of electronic fuses 120 may be respectively connected to each of the first group of output ports 130, so as to respectively supply power to a corresponding one or more loads.

In the context of the present invention, when "plurality" is used to modify something, it is intended to mean that there are two or more than two modified objects.

An electronic fuse is a fuse structure realized by utilizing the characteristics of electron migration. In application scenarios where the low-voltage network is increasingly loaded (for example, electric vehicles), the use of electronic fuses to replace traditional fuses can greatly save space. These electronic fuses are also more flexible in control and relatively simple to maintain.

Optionally, the power conversion device 1000 further includes a control component 140 . The control part 140 is used to control the DC-DC converter 110 and the first set of electronic fuses 120 . For example, when the control unit 140 recognizes that the power supply of the power conversion device 1000 is insufficient (for example, when the electric vehicle is in a low battery state), it can control the first group of electronic fuses 120 according to factors such as remaining power and load demand. One or more electronic fuses are disconnected, thereby disconnecting the loads connected to them, and reducing the load demand; or controlling the power conversion device 1000 to be completely disconnected, so as to cut off the loads connected to the entire power conversion device 1000 .

It should be understood that the control unit 140 may further include a memory and a processor. Wherein, the memory is a non-transitory computer-readable medium on which computer-executable instructions for implementing corresponding controls are stored. The memory may be any suitable storage device such as random access memory RAM, read only memory ROM, rewritable non-volatile memory and the like. Wherein, the processor may be any appropriate special-purpose processor such as field programmable array FPGA, application-specific integrated circuit ASIC, digital signal processing circuit DSP, or any appropriate general-purpose processor. In a vehicle application scenario, the control component 140 may be an electronic control unit ECU, a domain control unit DCU, and the like. When the computer-executable instructions stored in the memory are run on the processor, corresponding control functions can be realized.

Further, the control part 140 can control the DC-DC converter 110 and the first group of electronic fuses 120 cooperatively. For example, when the control unit 140 recognizes that a load connected to an electronic fuse in the first group of electronic fuses 120 fails, but the impact of the failure on the entire system is within a certain threshold range, the control unit 140 may Control the opening of the electronic fuse. In another example, when the control unit 140 recognizes that the load connected to one or more electronic fuses in the first group of electronic fuses 120 has failed, and the failure may have a greater impact on the system, the control unit 140 may control the entire DC-DC converter 110 to be disconnected. The coordinated control of the DC-DC converter 110 and the first group of electronic fuses 120 by the control unit 140 can avoid the need to set up control units for the two and communicate and coordinate between the two control units, saving wiring harness resources , Reduce the amount of data transmission.

Further, the control part 140 can monitor the status data of the DC-DC converter 110, the first set of electronic fuses 120, for example, their voltage, current, temperature and so on. The control unit 140 can identify the state of the first group of electronic fuses 120 of the DC-DC converter 110 through the monitored data, such as normal working condition or fault working condition.

Further, the control unit 140 can provide the DC-DC converter 110 with output overvoltage protection, output undervoltage protection, output overcurrent protection, output short circuit protection or overtemperature protection and so on. These protections can be based on the status data of the DC-DC converter 110 and the first group of electronic fuses 120 monitored by the control unit 140 , and can also be based on other data transmitted to the power conversion device 1000 by the system.

Optionally, the power conversion device 1000 further includes a communication component 150 . The communication part 150 can output the state data of the electric device 1000 (for example, the state data of the DC-DC converter 110 or the first group of electronic fuses 120 monitored by the control part 140) to the outside, such as other electronic control units of the vehicle ECU, domain control unit DCU, etc. The communication part 150 can also receive data from the outside, for example, other status data of the vehicle or control data from the domain control unit DCU, and the like.

Wherein, the communication component 150 can communicate with the outside by using a wired communication method, a wireless communication method or a combination of the two. It should be understood that wireless communication methods include, but are not limited to, Bluetooth communication, wireless fidelity communication (eg, Wi-Fi), cellular communication (eg, 3G, 4G, 5G, etc.) and the like.

Optionally, the power conversion device 1000 further includes a heat dissipation component 160 . The heat dissipation component 160 can provide heat dissipation for the DC-DC converter 110 and the first set of electronic fuses 120 . Generally speaking, it is necessary to configure heat dissipation components for DC-DC converters. Here, the DC-DC converter 110 and the first group of electronic fuses 120 are integrated in the power conversion device 1000, so that the first group of electronic fuses 120 can share the heat dissipation components of the DC-DC converter without additional heat dissipation The arrangement makes full use of the original resources in the power converter and saves space resources.

In application scenarios with complex low-voltage networks (for example, electric vehicles), a large number of electronic fuses need to be configured, which leads to a large demand for wiring harnesses, high wiring harness losses and a large number of connecting devices (for example, power connectors). In the prior art, electronic fuses are often set independently of the DC-DC converter, so it is necessary to configure additional control components, communication components, heat dissipation components, etc. for the electronic fuse, which requires additional wiring harness resources, space resources, and processing. server resources. Using the power conversion equipment 1000 to integrate the DC-DC converter 110 and the first group of electronic fuses 120 together can alleviate the problem of the wire harness transmitted from the DC-DC converter 110 to the first group of electronic fuses 120, reduce line loss, and can Reduce the use of power connectors between the two, and reduce development costs.

As mentioned above, the DC-DC converter 110 and the first group of electronic fuses 120 can share a communication component 150 to transmit their status data to the outside, or receive status data or control data from the outside. In addition, the DC-DC converter 110 and the first group of electronic fuses 120 may share a control unit 140, and the control unit 140 may control the two together. Compared with using two or more electronic control units (ECUs) to control the two separately, such an arrangement reduces the consumed control resources and simplifies the control logic. In addition, the DC-DC converter 110 and the first group of electronic fuses 120 can share a heat dissipation component 160 , so that there is no need to provide heat dissipation components for the two, which improves space utilization.

FIG. 2 shows a power distribution system 2000 according to one embodiment of the invention. The power distribution system 2000 includes a power conversion device 210, a first set of

loads

220A, 220B, a second set of

loads

230A, 230B, and a second set of

electronic fuses

240A, 240B.

Wherein, the power conversion device 210 may be, for example, the aforementioned power conversion device 1000 . The power conversion device 210 includes a DC-DC converter 211 , a first set of

electronic fuses

212A, 212B, a first set of

output ports

213A, 213B, and a second set of output ports 214 . The first group of

output ports

213A, 213B and the second group of output ports 214 may be constituted by power connectors.

Similar to the power conversion device 1000 , the DC-DC converter 211 is used to convert the electric energy input into the power conversion device 210 . Specifically, the DC-DC converter 211 may convert the input high voltage into a low voltage, for example, convert the input 48V voltage into a common voltage level of 12V for low-voltage loads in vehicles. In another embodiment, the DC-DC converter 211 can convert the input electric energy into a specific current value.

The electric energy transformed by the DC-DC converter 211 is transmitted to the first set of

output ports

213A, 213B through the first set of

electronic fuses

212A, 212B, and then transmitted to the first set of

loads

220A, 220B through the first set of

output ports

213A, 213B , so as to supply power to the first group of

loads

220A, 220B. The first group of

electronic fuses

212A, 212B turns on or off the path through which the transformed electric energy is transmitted from the DC-DC converter 211 to the first group of

output ports

213A, 213B, thereby controlling the power supply to the first group of

loads

220A, 220B .

The electric energy transformed by the DC-DC converter 211 is also transmitted to the second group of

electronic fuses

240A, 240B through the second group of output ports 214, and then transmitted to the second group of

loads

230A, 230B through the second group of

electronic fuses

240A, 240B , thereby supplying power to the second group of

loads

230A, 230B.

In the embodiment shown in FIG. 2 , the second set of output ports includes an output port 214 for transmitting the transformed electrical energy to the split point S by using a transmission line. Wherein, the split point S is set close to the second group of

loads

230A, 230B. Then, the converted electric energy is transmitted to corresponding

loads

230A and 230B from the branching point S by using multiple transmission lines (specifically, two transmission lines in FIG. 2 ). Therefore, only one transmission line is needed between the second group of output ports 214 and the splitting point S, which can greatly reduce the wiring harness compared to configuring one transmission line for each load (ie, each electronic fuse). This arrangement is especially suitable for electronic fuses with low heat dissipation requirements, or several loads located close to each other.

In another embodiment, the second set of output ports 214 may also include a plurality of output ports, wherein each output port transmits the transformed electric energy to the load via an electronic fuse disposed outside the power converter.

In the embodiment shown in FIG. 2, the second set of output ports 214 are completely different output ports from the first set of

output ports

213A, 213B. However, in other embodiments, the second set of output ports 214 may at least partially coincide with the first set of

output ports

213A, 213B. For example, the second set of output ports 214 may be one of the first set of

output ports

213A, 213B. As another example, the second set of output ports 214 may include two output ports 214A, 214B (not shown), wherein the output port 214A is the same port as the output port 213A, and the output port 214B is the same as the first set of

output ports

213A, 213B are all different.

As shown in FIG. 2 , the second set of

electronic fuses

240A, 240B are disposed downstream of the split point S, and thus are also disposed close to the second set of

loads

230A, 230B. In one embodiment, e-fuse 240A may be integrated with load 230A and e-fuse 240B may be integrated with load 230B. The second group of electronic fuses 240A conducts or disconnects the transformed electric energy from the second group of output ports 214 to the second group of loads 230A, and the second group of electronic fuses 240B conducts or disconnects the transformed electric energy from The second group of output ports 214 transmits paths to the second group of loads 230B.

Similar to the power conversion device 1000 , the power conversion device 210 may further include a control part 215 . The control part 215 is used to control the DC-DC converter 211 and the first set of electronic fuses 212 . For example, when the control unit 215 recognizes that the power supply of the power conversion device 210 is insufficient (for example, when the electric vehicle is in a low battery state), it can control the first group of electronic fuses 212 according to factors such as remaining power and load demand. One or more electronic fuses are disconnected, thereby disconnecting the corresponding one or more loads in the first group of loads 220, reducing the load demand; or controlling the entire disconnection of the power conversion device 210, thereby cutting off the connection of the entire power conversion device 210 All the loads, including the first group of loads 220 and the second group of loads 230 .

It should be understood that the control unit 215 may further include a memory and a processor. Wherein, the memory is a non-transitory computer-readable medium on which computer-executable instructions for implementing corresponding controls are stored. The memory may be any suitable storage device such as random access memory RAM, read only memory ROM, rewritable non-volatile memory and the like. Wherein, the processor may be any appropriate special-purpose processor such as field programmable array FPGA, application-specific integrated circuit ASIC, digital signal processing circuit DSP, or any appropriate general-purpose processor. In a vehicle application scenario, the control component 140 may be an electronic control unit ECU, a domain control unit DCU, and the like. When the computer-executable instructions stored in the memory are run on the processor, corresponding control functions can be realized.

Further, the control component 215 can cooperatively control the DC-DC converter 211 and the first group of electronic fuses 212 . For example, when the control unit 215 recognizes that a load connected to an electronic fuse in the first group of electronic fuses 212 fails, but the impact of the failure on the entire system is within a certain threshold range, the control unit 215 may Control the opening of the electronic fuse. In another example, when the control unit 215 recognizes that the load connected to one or more electronic fuses in the first group of electronic fuses 212 has failed, and the failure may have a greater impact on the system, the control unit 215 may control the entire DC-DC converter 211 to be disconnected. The coordinated control of the DC-DC converter 211 and the first group of electronic fuses 212 by the control unit 215 can avoid the need to set up control units for the two and communicate and coordinate between the control units of the two, saving wiring harness resources , Reduce the amount of data transmission.

Further, the control part 215 can monitor the status data of the DC-DC converter 211, the first set of electronic fuses 212, for example, their voltage, current, temperature and so on. The control unit 215 can identify the state of the first set of electronic fuses 212 of the DC-DC converter 211 through the monitored data, such as normal working condition or fault working condition.

Further, the control unit 215 can provide the DC-DC converter 211 with output overvoltage protection, output undervoltage protection, output overcurrent protection, output short circuit protection or overtemperature protection and so on. These protections can be based on the status data of the DC-DC converter 211 and the first group of electronic fuses 212 monitored by the control unit 215 , and can also be based on other data externally transmitted to the power conversion device 210 .

Optionally, the power conversion device 210 further includes a communication component 216 . The communication part 216 can output the state data of the electric device 210 (for example, the state data of the DC-DC converter 211 or the first group of electronic fuses 212 monitored by the control part 215) to the outside, such as other electronic control units of the vehicle ECU, domain control unit DCU, etc. The communication part 216 can also receive data from the outside, for example, other status data of the vehicle or control data from the domain control unit DCU, and the like.

Wherein, the communication component 216 can communicate with the outside by using a wired communication method, a wireless communication method or a combination of the two. It should be understood that wireless communication methods include, but are not limited to, Bluetooth communication, wireless fidelity communication (eg, Wi-Fi), cellular communication (eg, 3G, 4G, 5G, etc.) and the like.

Optionally, the power conversion device 210 further includes a heat dissipation component 217 . The heat dissipation component 217 can provide heat dissipation for the DC-DC converter 211 and the first set of electronic fuses 212 . Integrating the DC-DC converter 211 and the first group of electronic fuses 212 in the power conversion device 210, so that the first group of electronic fuses 212 can share the heat dissipation components of the DC-DC converter 211 without additional heat dissipation arrangements, The original resources in the power converter are fully utilized, and space resources are saved.

In the power distribution system 2000, a part of the electronic fuses (ie, the first group of

electronic fuses

212A, 212B) is integrated in the power conversion device 210, and another part of the electronic fuses (ie, the second group of

electronic fuses

240A , 240B) are disposed close to the load terminals (ie, the second set of

loads

230A, 230B).

On the one hand, electronic fuses with large current values and large heat dissipation requirements can be integrated into the power converter 210, so that the original heat dissipation components 217 of the power converter 210 can be used to provide heat dissipation for these electronic fuses with large heat dissipation requirements. , no additional cooling components are required for these electronic fuses. In this way, the hardware in the power distribution system 2000 can be fully utilized and the space utilization rate can be improved. At the same time, the power connector between the DC-DC converter 211 integrated in the power conversion device 210 and the first group of electronic fuses 212 can be omitted, reducing development costs.

On the other hand, for multiple electronic fuses with low heat dissipation requirements and close to the load position, a transmission line can be used to transmit the electric energy transformed by the DC-DC converter to the shunt point close to the load, and then use the transmission line to transfer the electric energy respectively. to the corresponding load via each electronic fuse. This can greatly reduce the wire harness requirement for the section from the DC-DC converter to the shunt point, and reduce the wire harness loss.

The power distribution system 2000 flexibly configures the layout of the electronic fuses according to the characteristics of the electronic fuses and the characteristics of the loads connected to them, which effectively reduces the wiring harness and connectors, reduces the loss of the wiring harness, improves the system efficiency, and reduces the development cost.

Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically separate entities. Wherein, some modules or components (for example, the control components 140, 215) may be implemented in the form of software, or may be implemented in one or more hardware modules or integrated circuits.

It should be understood that the power distribution system according to the foregoing embodiments of the present invention may be incorporated into a vehicle. For example, the electric energy input to the DC-DC converter in the power distribution system comes from the DC power source in the vehicle, and the first group of loads and the second group of loads may be DC loads in the vehicle. When the voltage level of the DC power supply is higher than that of the DC load, a DC-DC converter is used to convert the voltage level. It should be understood that in some embodiments, a DC-DC converter is also used to convert the current level.

To sum up, the arrangement scheme of the electronic fuse proposed by the present invention enables the electronic fuse with high heat dissipation requirements to use the heat sink of the DC-DC converter without additional heat dissipation devices, which improves hardware and space utilization. In addition, the electronic fuse arrangement scheme proposed by the present invention can flexibly arrange each electronic fuse according to the characteristics of the electronic fuse and the characteristics of the load connected to it, which reduces the wiring harness and connectors, reduces the loss of the wiring harness, and improves System efficiency, reducing development costs and processor resources.

Although only some embodiments of the present invention have been described above, those skilled in the art should understand that the present invention can be implemented in many other forms without departing from its gist and scope. While only certain features of the invention have been illustrated and described above, many modifications and changes will occur to those skilled in the art. Moreover, it should be understood that components of the various embodiments disclosed above may be combined or exchanged with each other. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.

Claims

A power conversion device, characterized in that it includes:

a DC-DC converter, which is used to convert the electric energy input to the power conversion device;

a first set of output ports; and

The first group of electronic fuses is used to switch on or off the path through which the transformed electric energy is transmitted from the DC-DC converter to the first group of output ports.
The power conversion device according to claim 1, further comprising:

a control unit for controlling the DC-DC converter and the first set of electronic fuses.
The power conversion device according to claim 2, wherein,

The control part cooperatively controls turning on or off of the DC-DC converter and turning on or off of each of the first set of electronic fuses.
The power conversion device according to claim 2, wherein the control unit provides at least one of the following protections for the DC-DC converter:

Output over-voltage protection, output under-voltage protection, output over-current protection, output short-circuit protection, and over-temperature protection.
The power conversion device according to claim 2, wherein the control part monitors the DC-DC converter and/or

The state of the first set of electronic fuses.
The power conversion device according to claim 2, further comprising:

A communication part for enabling the control part to communicate with the outside.
The power conversion device according to claim 1, further comprising a heat dissipation component,

Wherein, the DC-DC converter and the first group of electronic fuses share the heat dissipation component for heat dissipation.
A power distribution system, characterized in that it comprises:

The power conversion device according to any one of claims 1 to 7, wherein the power conversion device further comprises a second set of output ports;

a first set of loads receiving the transformed electrical energy from the power conversion device via the first set of output ports;

a second set of loads that receive the transformed electrical energy from the power conversion device via the second set of output ports; and

The second group of electronic fuses is arranged between the second group of output ports and the second group of loads and close to the second group of loads, and is used to conduct or disconnect the converted electric energy from the second group of loads. The transmission path of the second group of output ports to the second group of loads.
The power distribution system according to claim 8,

Wherein, the second group of electronic fuses includes a plurality of electronic fuses, the second group of loads includes a plurality of loads, and the plurality of electronic fuses respectively correspond to the plurality of loads,

And wherein, one transmission line is used to transmit the transformed electric energy from the second set of output ports to a split point close to the second set of loads, and then a plurality of transmission lines are used to transform the transformed electric energy from the split point The electric energy of is transmitted to the corresponding load through each electronic fuse in the second group of electronic fuses respectively.
The power distribution system according to claim 9, wherein,

Each electronic fuse of the second set of electronic fuses is integrated in the corresponding load.
The power distribution system according to claim 9, wherein,

said first set of output ports and said second set of output ports are disparate output ports; or

The first set of output ports at least partially coincides with the second set of output ports.
A vehicle comprising the power distribution system according to claim 8 .