CN217214804U

CN217214804U - Hydrogenation leakage safety early warning system for fuel cell vehicle

Info

Publication number: CN217214804U
Application number: CN202122992721.3U
Authority: CN
Inventors: 潘彦君; 王保龙; 刘忠祥; 李士廷; 刘小杰
Original assignee: Zhongtong Bus Holding Co Ltd
Current assignee: Zhongtong Bus Holding Co Ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-08-16
Anticipated expiration: 2031-11-30

Abstract

The utility model provides a safety precaution system is revealed in fuel cell car hydrogenation belongs to fuel cell car technical field, include: the hydrogen concentration sensor, the power module connected with the hydrogen concentration sensor and the alarm module connected with the hydrogen concentration sensor and the power module together; the power module comprises a power supply device, a switch and a UPS power supply which are connected in sequence; the hydrogen concentration sensor, the alarm module and the UPS are all arranged in the hydrogenation port bin; the hydrogen concentration sensor is arranged on the upper plane of the hydrogenation port bin; the UPS power supply is arranged on the inner plane of the hydrogenation port bin; the alarm module is arranged on the outer plane of the hydrogenation port bin. The utility model discloses can be under the condition of whole car outage, the condition is revealed to accurate monitoring hydrogen to provide the hydrogen concentration value, and make analysis and judgment, in order to avoid hydrogen to reveal and the problem of explosion or burning that arouses, eliminated the potential safety hazard.

Description

Hydrogenation leakage safety early warning system for fuel cell vehicle

Technical Field

The utility model relates to a fuel cell car technical field, concretely relates to fuel cell car hydrogenation reveals safety precaution system.

Background

The hydrogen fuel cell automobile has the characteristics of high energy charging speed, long endurance, greenness, environmental protection and the like, hydrogen is a flammable and explosive gas, and when the volume concentration of the hydrogen reaches 4-75%, the hydrogen has the danger of combustion and explosion. Because hydrogen has very strong diffusivity, in the hydrogenation process of a hydrogen fuel cell automobile, a small amount of hydrogen can escape inevitably, so that not only is the waste of hydrogen increased, the running cost of the whole automobile is increased, but also safety accidents are possibly caused due to hydrogen leakage, and potential safety hazards exist.

Before the hydrogenation operation of the fuel cell automobile, the power supply of the whole automobile needs to be turned off based on safety consideration. After the power supply of the whole vehicle is turned off, the hydrogen concentration sensor has no power supply input, and cannot normally monitor the concentration of hydrogen at the hydrogen adding port. Based on this kind of state, carry out hydrogenation to the vehicle, operating personnel will not know whether hydrogen leaks in the hydrogenation process, have certain potential safety hazard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure, reasonable can be under the condition of whole car outage, the accurate hydrogen concentration that provides the hydrogenation mouth to make audible and visual alarm's fuel cell car hydrogenation reveal safety precaution system, with at least one item technical problem who exists in solving above-mentioned background art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a fuel cell car hydrogenation reveals safety precaution system, include: the hydrogen concentration sensor, with the power module that hydrogen concentration sensor is connected, and with hydrogen concentration sensor with alarm module that power module connects jointly.

Preferably, the power module comprises a power supply device, a switch and a UPS power source which are connected in sequence.

Preferably, the hydrogen concentration sensor, the alarm module and the UPS are all arranged in the hydrogenation port bin.

Preferably, the hydrogen concentration sensor is arranged on the upper plane of the hydrogenation port bin; the UPS power supply is arranged on the inner plane of the hydrogenation port bin; the alarm module is arranged on the outer plane of the hydrogenation port bin.

Preferably, the UPS power supply is respectively connected with the storage battery, the hydrogen concentration sensor and the alarm module through power connecting wires.

Preferably, the alarm module is connected with the hydrogen concentration sensor through a signal wire harness.

Preferably, the alarm module comprises an audible alarm device.

Preferably, the alarm module further comprises an optical signal alarm device.

Preferably, the alarm module further comprises a display device.

Preferably, the sound alarm device, the light signal alarm device and the display device are all connected with the UPS.

The utility model discloses beneficial effect: can be under the circumstances of whole car outage, the accurate monitoring hydrogen reveals the condition to provide the hydrogen concentration value, and make analysis and judgement, in order to avoid hydrogen to reveal the problem of explosion or burning that arouses, eliminated the potential safety hazard.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a functional schematic block diagram of a hydrogenation leakage safety early warning system of a fuel cell vehicle according to embodiment 2 of the present invention.

Wherein: 1-a storage battery; 2-power hand-dialing switch; 3-a UPS power supply; a 4-hydrogen concentration sensor; 5-hydrogen concentration display alarm.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

In the description of the present specification, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of indicated technical features is significant. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present specification, the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present technology.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "coupled," and "disposed" are intended to be inclusive and mean, for example, that they may be fixedly coupled or disposed, or that they may be removably coupled or disposed, or that they may be integrally coupled or disposed. The specific meaning of the above terms in the present technology can be understood by those of ordinary skill in the art as appropriate.

To facilitate understanding of the present invention, the present invention will be further explained with reference to specific embodiments in conjunction with the accompanying drawings, and the specific embodiments do not constitute limitations of the embodiments of the present invention.

It will be understood by those skilled in the art that the drawings are merely schematic representations of embodiments, and that the elements in the drawings are not necessarily required to practice the present invention.

Example 1

In this embodiment 1, a fuel cell vehicle hydrogen leakage safety precaution system is provided, including: the hydrogen concentration sensor, with the power module that hydrogen concentration sensor is connected, and with hydrogen concentration sensor with alarm module that power module connects jointly.

The power module comprises a power supply device, a switch and a UPS power supply which are connected in sequence.

The hydrogen concentration sensor, the alarm module and the UPS are all arranged in the hydrogenation port bin.

The hydrogen concentration sensor is arranged on the upper plane of the hydrogenation port bin; the UPS power supply is arranged on the inner plane of the hydrogenation port bin; the alarm module is arranged on the outer plane of the hydrogenation port bin.

The UPS power supply is respectively connected with the storage battery, the hydrogen concentration sensor and the alarm module through power connecting wires. The alarm module is connected with the hydrogen concentration sensor through a signal wire harness. The alarm module comprises a sound alarm device. The alarm module also comprises an optical signal alarm device. The alarm module further comprises a display device.

The sound alarm device, the optical signal alarm device and the display device are all connected with the UPS. The hydrogen concentration sensor is connected with the sound alarm device, the light signal alarm device and the display device through a signal wire harness.

The UPS power supply not only receives the power supply of the storage battery, but also respectively provides power for the hydrogen concentration sensor, the display device, the sound alarm device and the optical signal alarm device. When the hydrogen concentration sensor detects the hydrogen concentration and transmits the hydrogen concentration to the control chip and the display device for display, an alarm threshold value is set in the control chip, and if the detected hydrogen concentration is greater than the threshold value, the sound alarm device and the optical signal alarm device give an alarm.

Example 2

As shown in fig. 1, this embodiment 2 provides a hydrogenation leakage safety warning system for a fuel cell vehicle, where the hydrogenation leakage safety warning system is composed of a UPS power supply 3, a hydrogen concentration sensor 4, a hydrogen concentration display alarm 5, and a power harness and a signal harness.

The storage battery 1 is connected with the power hand-dialing switch 2 through a power wiring harness (1); the UPS 3 is connected with the power hand-dialing switch 2 through a power wire harness (2); the UPS power supply 3 is connected with the hydrogen concentration sensor 4 through a power supply wire harness (3); the UPS 3 is connected with the hydrogen concentration display alarm 5 through a power harness (4); the hydrogen concentration sensor 4 is connected with a hydrogen concentration display alarm 5 through a signal wire harness (5).

In this embodiment 2, the working state of the hydrogen leakage safety warning system can be divided into the following two cases:

when the whole vehicle is powered on, namely after the power hand-dialing switch 2 is closed: at the moment, after the hydrogen fuel cell automobile closes the power hand-operated switch 2, the electric energy of the storage battery 1 is transmitted to the UPS power supply 3 through the power hand-operated switch 2, and the UPS power supply 3 not only provides power for the hydrogen concentration sensor 4 and the hydrogen concentration display alarm 5, but also stores part of the electric energy of the storage battery 1. At the moment, the hydrogen concentration sensor 4 and the hydrogen concentration display alarm 5 can work normally, the hydrogen leakage condition of the hydrogen adding port is accurately monitored, the hydrogen concentration is normally provided, and sound and light alarm is given.

When the whole vehicle is powered off, namely after the power supply hand-pulling switch 2 is switched off: after the hydrogen fuel cell automobile is disconnected from the power supply hand-push switch 2, namely the UPS 3 can not receive the electric energy of the storage battery 1. However, at this time, the UPS power supply 3 can supply power to the hydrogen concentration sensor 4 and the hydrogen concentration display alarm 5 by storing part of the electric power of the battery 1. At the moment, the hydrogen concentration sensor 4 and the hydrogen concentration display alarm 5 can work normally, the hydrogen concentration is accurately monitored, and acousto-optic reminding is made.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it should be understood by those skilled in the art that various modifications and variations can be made without inventive changes and modifications, and these modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a fuel cell car hydrogenation reveals safety precaution system which characterized in that includes: the hydrogen concentration sensor, with the power module that hydrogen concentration sensor is connected, and with hydrogen concentration sensor with alarm module that power module connects jointly.

2. The fuel cell vehicle hydrogen leakage safety warning system of claim 1, wherein the power module comprises a power supply device, a switch, and a UPS power source, which are connected in sequence.

3. The fuel cell vehicle hydrogen leakage safety warning system of claim 2, wherein the hydrogen concentration sensor, the alarm module and the UPS power source are all disposed in a hydrogen inlet bin.

4. The fuel cell vehicle hydrogenation leakage safety pre-warning system of claim 3, wherein the hydrogen concentration sensor is arranged on the upper plane of the hydrogenation port bin; the UPS power supply is arranged on the inner plane of the hydrogenation port bin; the alarm module is arranged on the outer plane of the hydrogenation port bin.

5. The fuel cell vehicle hydrogen leakage safety warning system of claim 2, wherein the UPS power supply is connected to the battery, the hydrogen concentration sensor, and the alarm module via power connection lines, respectively.

6. The fuel cell vehicle hydrogen leakage safety pre-warning system according to claim 2, wherein the alarm module is connected to the hydrogen concentration sensor via a signal harness.

7. The fuel cell vehicle hydrogen leakage safety warning system according to claim 2, wherein the alarm module comprises an audible alarm device.

8. The fuel cell vehicle hydrogen leakage safety warning system according to claim 7, wherein the alarm module further comprises an optical signal alarm device.

9. The fuel cell vehicle hydrogen leakage safety warning system according to claim 8, wherein the alarm module further comprises a display device.

10. The fuel cell vehicle hydrogen leakage safety warning system according to claim 9, wherein the sound alarm device, the light signal alarm device and the display device are all connected to the UPS power supply.