CN211826425U

CN211826425U - Performance testing device for hydrogen concentration detector of fuel cell

Info

Publication number: CN211826425U
Application number: CN201922244988.7U
Authority: CN
Inventors: 郭婷; 王芳; 张晓辉; 梁荣亮; 郭瑞玲; 王志军
Original assignee: China Automotive Technology and Research Center Co Ltd; CATARC Automotive Test Center Tianjin Co Ltd
Current assignee: China Automotive Technology and Research Center Co Ltd; CATARC Automotive Test Center Tianjin Co Ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-10-30
Anticipated expiration: 2029-12-13

Abstract

The utility model provides a performance testing device for a hydrogen concentration detector of a fuel cell, which comprises an explosion-proof shell; the left end and the right end of the explosion-proof shell are both provided with connecting plug-ins, and the connecting plug-ins comprise signal line terminals, power line terminals and grounding line terminals; the same terminals of the two connecting plug-ins are communicated with corresponding wires in the explosion-proof shell; the lower surface of the explosion-proof shell is provided with a resin perspective window, and the upper surface of the explosion-proof shell is embedded with a time delay switch and a button switch. The utility model relates to a fuel cell hydrogen concentration detector capability test device can realize carrying out quick capability test to hydrogen concentration detector to have timing automatic re-setting function, in order to prevent because the short-circuit time overlength, bring unnecessary to the hydrogen concentration detector of test and relevant connected device and damage.

Description

Performance testing device for hydrogen concentration detector of fuel cell

Technical Field

The utility model belongs to hydrogen concentration detector test field especially relates to a fuel cell hydrogen concentration detector capability test device.

Background

Under the prior art condition, according to the test requirements in GB/T26990-. The hydrogen safety problem of the fuel cell electric vehicle is always a highly important problem in the industry, and the strategy principle and means generally adopted for hydrogen safety are timely detection, effective processing and security reinforcement, wherein the timely detection is the first step and the most important step, the hydrogen concentration sensor is used as a key component, and the sensor is required to be checked in a safe mode when the vehicle is checked, so that the normal use and the function of the sensor on the vehicle are guaranteed. The existing related testing device and method for the hydrogen concentration sensor can not realize the standard open circuit and short circuit fault testing of the hydrogen concentration sensor on the premise of not interfering other running states of the whole vehicle.

Disclosure of Invention

In view of this, the utility model aims at providing a fuel cell hydrogen concentration detector capability test device can realize carrying out quick capability test to hydrogen concentration detector to have timing automatic re-setting function, in order to prevent because the short-circuit time overlength, bring unnecessary damage to the hydrogen concentration detector and the relevant connected device of test.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a fuel cell hydrogen concentration detector performance test device comprises an explosion-proof shell; the left end and the right end of the explosion-proof shell are both provided with connecting plug-ins, and the connecting plug-ins comprise signal line terminals, power line terminals and grounding line terminals; the same terminals of the two connecting plug-ins are communicated with corresponding wires in the explosion-proof shell; a resin perspective window is arranged on the lower surface of the explosion-proof shell, a time delay switch and a button switch are embedded in the upper surface of the explosion-proof shell, one end of the time delay switch is communicated with a connecting wire between two power line terminals, and the other end of the time delay switch is communicated with a connecting wire between two ground line terminals; the button switch is connected to the connecting lead between the two ground terminals and is used for controlling the on-off of the two ground terminals.

Further, the delay switch is a 5 second delay reset switch.

Further, the explosion proof housing is rectangular in shape.

Furthermore, the upper surface of the explosion-proof shell is provided with a nameplate for identifying the type of the switch.

Furthermore, the rear surface of the explosion-proof shell is a hollow notch, and the resin perspective window is fixedly covered on the hollow notch by using a screw.

Furthermore, the four corners of the explosion-proof shell are provided with round corners.

Compared with the prior art, the utility model relates to a fuel cell hydrogen concentration detector capability test device has following advantage:

the utility model relates to a fuel cell hydrogen concentration detector capability test device can realize carrying out quick capability test to hydrogen concentration detector to have timing automatic re-setting function, in order to prevent because the short-circuit time overlength, bring unnecessary to the hydrogen concentration detector of test and relevant connected device and damage.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation.

In the drawings:

fig. 1 is a schematic structural diagram of a performance testing device for a hydrogen concentration detector of a fuel cell according to an embodiment of the present invention;

fig. 2 is a left side view schematically illustrating a performance testing apparatus for a hydrogen concentration detector of a fuel cell according to an embodiment of the present invention;

fig. 3 is a schematic bottom view of a performance testing device for a hydrogen concentration detector of a fuel cell according to an embodiment of the present invention;

fig. 4 is a schematic diagram of the principle of a performance testing device for a hydrogen concentration detector of a fuel cell according to an embodiment of the present invention.

Description of reference numerals:

1-an explosion-proof housing; 2-resin perspective window; 3-a time delay switch; 4-a push-button switch; 5-connecting the plug-in.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1-4, a fuel cell hydrogen concentration detector performance testing device comprises an explosion-proof housing 1; the left end and the right end of the explosion-proof shell 1 are both provided with connecting inserts 5, and the connecting inserts 5 comprise signal line terminals, power line terminals and grounding line terminals; the same terminals of the two connecting plug-ins 5 are communicated with corresponding wires in the explosion-proof shell 1; the lower surface of the explosion-proof shell 1 is provided with a resin perspective window 2, the upper surface of the explosion-proof shell 1 is embedded with a delay switch 3 and a button switch 4, one end of the delay switch 3 is communicated with a connecting wire between two power line terminals, and the other end of the delay switch 3 is communicated with a connecting wire between two grounding line terminals; the push-button switch 4 is connected to a connecting wire between the two ground terminals, and is used for controlling the on-off of the two ground terminals.

As shown in fig. 4, in the present embodiment, two connection plugs 5 are connected one to the hydrogen concentration detector to be tested and the other to the connection line of the hydrogen concentration detector on the vehicle. When a short-circuit test is carried out, an operator closes the delay switch 3 and the button switch 4, the tested hydrogen concentration detector is in a short-circuit state at the moment, and whether a corresponding short-circuit fault prompt of the hydrogen concentration detector exists on the vehicle can be observed; when the open circuit test is carried out, an operator does not close the delay switch 3 and closes the button switch 4, the hydrogen concentration detector tested at the moment is in an open circuit state, and whether the corresponding hydrogen concentration detector on the vehicle has an open circuit fault prompt or not can be observed.

As shown in fig. 1-4, delay switch 3 is a 5 second delay reset switch.

When the hydrogen concentration detector to be tested is subjected to short circuit test, the hydrogen concentration detector and related connected components are easily damaged due to long-time short circuit, so that the used delay switch 3 is a 5-second delay reset switch, and when the closing time exceeds 5 seconds, the delay switch 3 can be automatically reset and disconnected, so that the damage of the hydrogen concentration detector or connected equipment caused by the fact that the reset switch is not arranged for a long time due to negligence is avoided.

As shown in fig. 1-4, the explosion proof housing 1 is rectangular in shape.

As shown in fig. 1-4, the upper surface of the explosion-proof housing 1 is provided with a nameplate for identifying the type of the switch.

As shown in fig. 1-4, the rear surface of the explosion-proof housing 1 is a hollow notch, and the resin perspective window 2 is fixed and covered on the hollow notch by using screws.

The resin perspective window 2 is used, so that an operator can observe the circuit connection condition in the explosion-proof shell 1 at any time, and if the switch pin is damaged due to multiple short circuit or open circuit tests, the element can be replaced and maintained timely.

As shown in fig. 1-4, the four corners of the explosion-proof housing 1 are provided with round corners.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The performance testing device for the hydrogen concentration detector of the fuel cell is characterized in that: comprises an explosion-proof shell (1); the left end and the right end of the explosion-proof shell (1) are respectively provided with a connecting plug-in (5), and the connecting plug-in (5) comprises a signal line terminal, a power line terminal and a ground line terminal; the same terminals of the two connecting plug-in units (5) are communicated with corresponding leads in the explosion-proof shell (1); a resin perspective window (2) is arranged on the lower surface of the explosion-proof shell (1), a time delay switch (3) and a button switch (4) are embedded in the upper surface of the explosion-proof shell (1), one end of the time delay switch (3) is communicated with a connecting wire between the two power line terminals, and the other end of the time delay switch (3) is communicated with a connecting wire between the two ground line terminals; the button switch (4) is connected to a connecting lead between the two grounding terminals and is used for controlling the on-off of the two grounding terminals.

2. The fuel cell hydrogen concentration detector performance testing device according to claim 1, characterized in that: the delay switch (3) is a 5-second delay reset switch.

3. The fuel cell hydrogen concentration detector performance testing device according to claim 1, characterized in that: the explosion-proof housing (1) is rectangular in shape.

4. The fuel cell hydrogen concentration detector performance testing device according to claim 1, characterized in that: and a nameplate for identifying the type of the switch is arranged on the upper surface of the explosion-proof shell (1).

5. The fuel cell hydrogen concentration detector performance testing device according to claim 1, characterized in that: the rear surface of the explosion-proof shell (1) is a hollow notch, and the resin perspective window (2) is fixedly covered on the hollow notch by using a screw.

6. The fuel cell hydrogen concentration detector performance testing device according to claim 1, characterized in that: and four corners of the explosion-proof shell (1) are provided with round corners.