CN219339243U

CN219339243U - Power platform for hydrogen fuel cell vehicles integrating 24V and 12V systems

Info

Publication number: CN219339243U
Application number: CN202320116741.0U
Authority: CN
Inventors: 李青川; 李庆帅
Original assignee: King Long United Automotive Industry Suzhou Co Ltd
Current assignee: King Long United Automotive Industry Suzhou Co Ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-07-14
Anticipated expiration: 2033-01-13

Abstract

The utility model discloses a power supply platform of a hydrogen fuel cell vehicle integrating 24V and 12V systems, relates to the technical field of hydrogen fuel cells, and can solve the problem that if the 24V power supply platform and the 12V power supply platform exist in the same vehicle at the same time, 24V system equipment and 12V system equipment cannot work independently and interference can be generated. Comprising the following steps: the whole vehicle VCU is connected with the whole vehicle PDU and is used for sending an electricity taking instruction to the whole vehicle PDU after power-on; the whole vehicle PDU is connected with the power battery and is used for receiving the power taking instruction and controlling the high-voltage output of the power battery; the whole vehicle PDU is respectively connected with the 24VDCDC and the 12VDCDC and is used for respectively outputting high-voltage power to the 24VDCDC and the 12VDCDC; the 24VDCDC is used for converting high voltage into 24V voltage and outputting the 24V voltage to the 24V system equipment, and the 12VDCDC is used for converting high voltage into 12V voltage and outputting the 12V voltage to the 12V system equipment.

Description

Power platform for hydrogen fuel cell vehicles integrating 24V and 12V systems

Technical Field

The utility model relates to the technical field of hydrogen fuel cells, in particular to a power supply platform of a hydrogen fuel cell vehicle integrated with 24V and 12V systems.

Background

The hydrogen fuel cell is widely applied to the field of commercial vehicles, the conventional energy and pure electric commercial vehicles adopt a power supply platform which is generally 24V, the development of the hydrogen fuel cell is still in an initial stage, and related technologies are often borrowed from the field of passenger vehicles, so that part of hydrogen fuel systems adopt a 12V power supply platform of the passenger vehicles.

However, if the 24V power supply platform and the 12V power supply platform exist in the same vehicle at the same time, the two sets of power supply systems are not associated with each other or are directly connected together, but (1) when the two sets of power supply systems are not associated with each other, the power supply cannot supply power and charge the power supply, separate maintenance is needed, and the cost is high. (2) When two sets of power supply systems are directly connected together, the charge and discharge of the power supply cannot be balanced, and the 24V system equipment and the 12V system equipment cannot be mutually independent, so that signal interference can be generated.

Disclosure of Invention

In view of the above, the utility model provides a power supply platform of a hydrogen fuel cell vehicle integrating 24V and 12V systems, which can solve the technical problem that if the 24V power supply platform and the 12V power supply platform exist in the same vehicle at the same time, 24V system equipment and 12V system equipment cannot work independently and interfere with each other.

To achieve the above object, the present utility model provides a power supply platform for a hydrogen fuel cell vehicle integrating 24V and 12V systems, the power supply platform comprising: 24VDCDC, 12VDCDC, whole vehicle PDU, power battery and whole vehicle VCU;

the whole vehicle VCU is connected with the whole vehicle PDU and is used for sending an electricity taking instruction to the whole vehicle PDU after power-on;

the whole vehicle PDU is connected with the power battery and is used for receiving the power taking instruction and controlling the high-voltage output of the power battery;

the whole vehicle PDU is respectively connected with the 24VDCDC and the 12VDCDC and is used for respectively outputting the high voltage power to the 24VDCDC and the 12VDCDC;

the 24VDCDC is used for converting the high voltage into 24V voltage and outputting the 24V voltage to 24V system equipment, and the 12VDCDC is used for converting the high voltage into 12V voltage and outputting the 12V voltage to 12V system equipment.

Preferably, the method further comprises: a 12V battery;

connecting two 12V storage batteries in series and then connecting the two 12V storage batteries with the 24V system equipment, and supplying power to the 24V system equipment before power-on;

and connecting a 12V storage battery with the 12V system equipment for supplying power to the 12V system equipment before power-on.

Preferably, the 24VDCDC is further configured to charge two 12V storage batteries connected in series;

the 12VDCDC is also used to charge a block of the 12V battery.

Preferably, the method further comprises: a manual switch;

one side of the manual switch is connected with the two serially connected 12V storage batteries, and the other side of the manual switch is connected with the 24V system equipment and is used for preventing the two serially connected 12V storage batteries from discharging when the manual switch is disconnected;

one side of the manual switch is connected with one 12V storage battery, and the other side of the manual switch is connected with 12V system equipment and used for preventing one 12V storage battery from discharging when the manual switch is disconnected.

The utility model provides a power supply platform of a hydrogen fuel cell vehicle integrated with 24V and 12V systems, which comprises: 24VDCDC, 12VDCDC, whole vehicle PDU, power battery and whole vehicle VCU; the whole vehicle VCU is connected with the whole vehicle PDU and is used for sending an electricity taking instruction to the whole vehicle PDU after power-on; the whole vehicle PDU is connected with the power battery and is used for receiving an electric command and controlling the high-voltage output of the power battery; the whole vehicle PDU is respectively connected with the 24VDCDC and the 12VDCDC and is used for respectively outputting high-voltage power to the 24VDCDC and the 12VDCDC; the 24VDCDC is used for converting high voltage into 24V voltage and outputting the 24V voltage to the 24V system equipment, and the 12VDCDC is used for converting high voltage into 12V voltage and outputting the 12V voltage to the 12V system equipment. According to the technical scheme, the two sets of power supply platforms are connected with the whole vehicle PDU, high-voltage power is output to the 24VDCDC and the 12VDCDC through the whole vehicle PDU, the 24V system equipment and the 12V system equipment can work simultaneously or independently, the 24V system equipment and the 12V system equipment realize power supply isolation through the whole vehicle PDU, and mutual interference cannot be generated.

The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present utility model more readily apparent.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

fig. 1 shows a schematic structural diagram of a power supply platform of a hydrogen fuel cell vehicle integrated with 24V and 12V systems according to an embodiment of the present utility model.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The utility model will be described in detail hereinafter with reference to the drawings in conjunction with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

A power platform for a hydrogen fuel cell vehicle incorporating 24V and 12V systems according to some embodiments of the utility model is described below in conjunction with fig. 1.

The embodiment of the utility model provides a power supply platform of a hydrogen fuel cell vehicle integrated with 24V and 12V systems. As shown in fig. 1, the power supply platform includes: 24VDCDC, 12VDCDC, whole vehicle PDU, power battery and whole vehicle VCU; the whole vehicle VCU is connected with the whole vehicle PDU and is used for sending an electricity taking instruction to the whole vehicle PDU after power-on; the whole vehicle PDU is connected with the power battery and is used for receiving an electric command and controlling the high-voltage output of the power battery; the whole vehicle PDU is respectively connected with the 24VDCDC and the 12VDCDC and is used for respectively outputting high-voltage power to the 24VDCDC and the 12VDCDC; the 24VDCDC is used for converting high voltage into 24V voltage and outputting the 24V voltage to the 24V system equipment, and the 12VDCDC is used for converting high voltage into 12V voltage and outputting the 12V voltage to the 12V system equipment.

Specifically, as shown in fig. 1, one side of the 24VDCDC is connected to a 24V low voltage distribution box, wherein the 24V low voltage distribution box is connected to a plurality of 24V system devices (not shown in the figure). As shown in fig. 1, one side of the 12VDCDC is connected to one side of the two-way strongback, and the other side of the two-way strongback is connected to 12V low-pressure equipment, i.e., 12V system equipment, of the hydrogen fuel.

In a specific application scenario, as shown in fig. 1, the power platform further includes: a 12V battery; two 12V storage batteries are connected in series and then connected with 24V system equipment, and are used for supplying power to the 24V system equipment before power-on; A12V battery is connected to the 12V system device for powering the 12V system device prior to power up.

Correspondingly, the 24VDCDC is also used for charging two 12V storage batteries connected in series so as to supply power for 24V system equipment before power-on; the 12VDCDC is also used to charge a 12V battery so that 12V system devices can be powered prior to power up.

In a specific application scenario, as shown in fig. 1, the power platform further includes: a manual switch; one side of the manual switch is connected with two 12V storage batteries which are connected in series, and the other side of the manual switch is connected with 24V system equipment, so that when the manual switch is disconnected, the two 12V storage batteries which are connected in series are prevented from discharging; one side of the manual switch is connected with a 12V storage battery, and the other side of the manual switch is connected with 12V system equipment, so that when the manual switch is disconnected, the 12V storage battery is prevented from discharging.

All articles and references, including patent applications and publications, disclosed above are incorporated herein by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not substantially affect the essential novel features of the combination. The use of the terms "comprises" or "comprising" to describe combinations of elements, components, or steps herein also contemplates embodiments consisting essentially of such elements, components, or steps. By using the term "may" herein, it is intended that any attribute described as "may" be included is optional.

Multiple elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, component, section or step is not intended to exclude other elements, components, sections or steps.

It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but instead should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are incorporated herein by reference for the purpose of completeness. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to forego such subject matter, nor should the applicant be deemed to have such subject matter not considered to be part of the disclosed subject matter. It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A power platform for a hydrogen fuel cell vehicle integrating 24V and 12V systems, the power platform comprising: 24VDCDC, 12VDCDC, whole vehicle PDU, power battery and whole vehicle VCU;

2. The power platform of claim 1, further comprising: a 12V battery;

3. The power platform of claim 2, wherein the 24VDCDC is further configured to charge two of the 12V batteries connected in series;

the 12VDCDC is also used to charge a block of the 12V battery.

4. The power platform of claim 2, further comprising: a manual switch;