CN214215484U - Fuel cell protection system and electric automobile - Google Patents

Fuel cell protection system and electric automobile Download PDF

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Publication number
CN214215484U
CN214215484U CN202023286407.5U CN202023286407U CN214215484U CN 214215484 U CN214215484 U CN 214215484U CN 202023286407 U CN202023286407 U CN 202023286407U CN 214215484 U CN214215484 U CN 214215484U
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fuel cell
pin
collision
signal
cell stack
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CN202023286407.5U
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林鸿辉
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Shenzhen Hynovation Technologies Co ltd
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Shenzhen Hynovation Technologies Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Abstract

The utility model discloses a fuel cell protection system and electric automobile, fuel cell protection system includes: a fuel cell stack; a DC-DC conversion module electrically connected to the fuel cell stack; the collision detection module is used for detecting whether the fuel cell stack collides to obtain a collision detection signal; and the control module is electrically connected with the collision detection module and used for receiving the detection module and controlling the fuel cell stack and the DC-DC conversion module to be disconnected or kept connected according to the detection signal. The utility model discloses a collision detection signal controls fuel cell group and DC-DC conversion module and keeps connecting or disconnection to fuel cell and DC-DC conversion module keep connecting and lead to the short circuit and even blast when preventing to collide, with the security that improves fuel cell group.

Description

Fuel cell protection system and electric automobile
Technical Field
The utility model belongs to the technical field of fuel cell's technique and specifically relates to a fuel cell protection system and electric automobile are related to.
Background
The requirements of household users on the performance of automobiles, particularly the requirements on safety are higher and higher, and the safety performance of fuel cells of electric vehicles is more and more important. However, most of the electric vehicle technologies at present are not well-established, particularly with respect to the safety performance of fuel cells. In recent years, safety accidents of power batteries of new energy automobiles occur frequently, and worry about safety of the new energy automobiles in all social circles is not forbidden.
When the electric automobile collides, the biggest threat to the electric automobile and passengers is not the collision force generated by collision, but the collision causes the fuel cell to be damaged, so that the fuel cell is short-circuited, the fuel cell is ignited, and even the gas concentration reaches a certain probability, the fuel cell can explode, the accident damaging the life and property safety of a user is caused, and the protective measures of the fuel cell of the electric automobile are low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a fuel cell protection system can be when the electric motor car takes place the head-on collision, and fuel cell should be able to break off the high pressure to take place the short circuit and even the dangerous problem such as deflagration when preventing that the emergence personnel electrocute or fuel cell extrusion.
The utility model discloses still provide an electric automobile.
In a first aspect, an embodiment of the present invention provides a fuel cell protection system, including:
a fuel cell stack;
a DC-DC conversion module electrically connected to the fuel cell stack;
the collision detection module is used for detecting whether the fuel cell stack collides to obtain a collision detection signal;
and the control module is electrically connected with the collision detection module and used for receiving the collision detection signal and controlling the fuel cell stack and the DC-DC conversion module to be disconnected or kept connected according to the collision detection signal.
The utility model discloses fuel cell protection system has following beneficial effect at least: the control module controls the fuel cell stack and the DC-DC conversion module to be connected or disconnected according to the collision detection signal output by the collision detection module, so that the fuel cell stack is prevented from being short-circuited or even exploded due to the fact that the fuel cell and the DC-DC conversion module are connected when the collision occurs, and safety of the fuel cell stack is improved.
According to the utility model discloses a fuel cell protection system of other embodiments, the collision detection module includes a plurality of collision sensor, and is a plurality of collision sensor's first pin is parallelly connected, and is a plurality of collision sensor's second pin is parallelly connected.
According to other embodiments of the present invention, a fuel cell protection system, the control module includes:
a signal generating unit for sending a collision signal to the first pin of the collision sensor
The signal acquisition unit is used for acquiring a collision detection signal of a second pin of the collision sensor;
a signal processing unit for outputting a processing signal according to the collision detection signal;
and the control unit is used for controlling the connection or disconnection of the fuel cell stack and the DC-DC conversion module according to the processing signal.
According to the utility model discloses a fuel cell protection system of other embodiments, the signal generation unit the signal acquisition unit with the signal processing unit is integrated on a control chip, be equipped with first pin, second pin and third pin on the control chip, control chip's first pin one end is connected the signal generation unit other end is connected the first pin of collision sensor, control chip's second pin one end is connected the signal acquisition unit other end is connected the second pin of collision sensor, control chip's third pin one end is connected the signal processing unit other end is connected the control unit.
According to other embodiments of the present invention, a fuel cell protection system, the control unit includes: a high voltage contactor;
one end of a normally open contact of the high-voltage contactor is connected with the other end of the fuel cell pack and is connected with the DC-DC conversion module;
and one end of a coil of the high-voltage contactor is connected with a power supply, and the other end of the coil is connected with a third pin of the control chip.
According to other embodiments of the present invention, the fuel cell protection system further comprises a plurality of collision sensors uniformly disposed around the fuel cell stack.
In a second aspect, an embodiment of the present invention provides an electric vehicle, including: a fuel cell protection system and an automobile body as described in the first aspect.
The utility model discloses electric automobile has following beneficial effect at least: the fuel cell protection system of the first aspect is arranged on the automobile body, so that the safety of the electric automobile is improved.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
FIG. 1 is a block diagram of an embodiment of a fuel cell protection system according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of an embodiment of a fuel cell protection system according to an embodiment of the present invention;
FIG. 3 is a flow chart of an embodiment of a fuel cell protection method according to an embodiment of the present invention;
fig. 4 is a flow chart of another embodiment of a fuel cell protection method according to an embodiment of the present invention.
Reference numerals: 100. a fuel cell stack; 200. a DC-DC conversion module; 300. a collision detection module; 310. a collision sensor; 400. a control module; 410. a signal generating unit; 420. a signal acquisition unit; 430. a signal processing unit; 440. a control unit.
Detailed Description
The conception and the resulting technical effects of the present invention will be described clearly and completely with reference to the following embodiments, so that the objects, features and effects of the present invention can be fully understood. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention.
In the description of the present invention, if an orientation description is referred to, for example, the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, only for convenience of description and simplification of description, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. If a feature is referred to as being "disposed," "secured," "connected," or "mounted" to another feature, it can be directly disposed, secured, or connected to the other feature or indirectly disposed, secured, connected, or mounted to the other feature.
In the description of the embodiments of the present invention, if "a plurality" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "more than", "less than" or "within" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.
In a first aspect, referring to fig. 1, an embodiment of the present invention discloses a fuel cell protection system, including: a fuel cell stack 100, a DC-DC conversion module 200, a collision detection module 300, and a control module 400, the DC-DC conversion module 200 electrically connected to the fuel cell stack 100; the collision detection module 300 is used for detecting whether the fuel cell stack 100 collides to obtain a collision detection signal; the control module 400 is electrically connected to the collision detection module 300, and the control module 400 is configured to receive the collision detection signal and control the fuel cell stack 100 and the DC-DC conversion module 200 to be disconnected or remain connected according to the collision detection signal.
Whether the fuel cell stack 100 collides is detected by the collision detection module 300 to obtain a collision detection signal, and the control module 400 controls the fuel cell stack 100 and the DC-DC conversion module 200 to be connected or disconnected according to the collision detection signal, so that when a collision occurs, the control module 400 can disconnect the fuel cell stack 100 and the DC-DC conversion module 200 to cut off a high-voltage circuit, thereby preventing a person from getting an electric shock or the fuel cell stack 100 from being extruded to cause a short circuit or even explosion, and the like, and improving the safety of the fuel cell stack 100.
Wherein the control module 400 controls the fuel cell stack 100 and the DC-DC conversion module 200 to be disconnected according to the collision detection signal when the collision detection module 300 detects the collision of the fuel cell stack 100. If the collision detection module 300 does not detect the collision of the fuel cell stack 100, the control module 400 controls the fuel cell stack 100 and the DC-DC conversion module 200 to remain connected according to the collision detection signal. Therefore, by controlling the disconnection or connection of the fuel cell stack 100 and the DC-DC conversion module 200 according to the collision detection signal output from the collision detection module 300, the problem of explosion or the like caused by the short circuit of the fuel cell stack 100 and the DC-DC conversion module 200 at the time of collision is prevented, so that the safety of the fuel cell stack 100 is improved.
Referring to fig. 1 and 2, in some embodiments, the impact detection module 300 includes a number of impact sensors 310, with first pins of the number of impact sensors 310 connected in parallel and second pins of the number of impact sensors 310 connected in parallel. The collision detection signal received by the control module 400 is made more accurate by providing several collision sensors 310 to more comprehensively detect whether the fuel cell stack 100 has collided.
In this embodiment, the collision sensors 310 are three, the first pins of the three collision sensors 310 are connected in parallel, and the second pins of the three collision sensors 310 are also connected in parallel, so as to detect whether collision occurs through the three collision sensors 310, and if any one of the collision sensors 310 detects collision, the control module 400 can receive a collision detection signal, so as to improve the accuracy of collision detection.
In some embodiments, the collision sensors 310 are uniformly disposed on the periphery of the fuel cell stack 100, and by disposing the collision sensors 310 uniformly distributed on the periphery of the fuel cell stack 100, whether the fuel cell stack 100 collides can be accurately detected, and the control module 400 controls whether the fuel cell stack 100 and the DC-DC conversion module 200 are disconnected or connected more accurately.
In some embodiments, the control module 400 includes: the collision sensor comprises a signal generating unit 410, a signal acquiring unit 420, a signal processing unit 430 and a control unit 440, wherein the signal generating unit 410 is used for sending a collision signal to a first pin of the collision sensor 310; the signal collecting unit 420 is configured to collect a collision detection signal of the second pin of the collision sensor 310; the signal processing unit 430 is configured to output a processing signal according to the collision detection signal; the control unit 440 serves to control the fuel cell stack 100 and the DC-DC conversion module 200 to be connected or disconnected according to the processing signal.
Collision information generated by the signal generation unit 410 is input to the collision sensor 310 through a first pin of the collision sensor 310, and if the first pin and a second pin of the collision sensor 310 are connected to form a loop when the collision sensor 310 collides, the signal collection unit 420 can collect a collision signal through the second pin of the collision sensor 310, and therefore the collision detection signal is a collision signal, and the control unit 440 controls the fuel cell stack 100 and the DC-DC conversion module 200 to be disconnected according to the collision detection signal. If the collision sensor 310 does not collide, the first pin and the second pin of the collision sensor 310 are disconnected, and the signal acquisition unit 420 does not receive a collision signal, the collision detection signal is no signal input, so the control unit 440 maintains the connection of the fuel cell stack 100 and the DC-DC conversion module 200 according to the collision detection signal, so that the DC-DC conversion module 200 operates normally.
The signal generating unit 410 generates a PWM square wave signal with a certain timing sequence, the PWM square wave signal is input through the first pin of the collision sensor 310, and when the fuel cell stack 100 is not collided, the first pin and the second pin of the collision sensor 310 are not conducted, and the signal collecting unit 420 cannot collect the PWM square wave signal. If the fuel cell stack 100 collides, the first pin and the second pin of the collision sensor 310 are turned on, so the PWM square wave signal input from the first pin of the collision sensor 310 is transmitted to the second pin, and therefore the signal acquisition unit 420 can acquire the PWM square wave signal of the second pin, so the control unit 440 controls the fuel cell stack 100 and the DC-DC conversion module 200 to be disconnected according to the PWM square wave signal, and thus the determination method for determining whether the fuel cell stack 100 collides is simple and easy by whether the second pin of the collision sensor 310 outputs the PWM square wave signal.
In some embodiments, the signal generating unit 410, the signal acquiring unit 420 and the signal processing unit 430 are integrated on a control chip ECU, the control chip ECU is provided with a first pin, a second pin and a third pin, one end of the first pin of the control chip ECU is connected to the signal generating unit 410, the other end of the first pin is connected to the first pin of the collision sensor 310, one end of the second pin of the control chip ECU is connected to the signal acquiring unit 420, the other end of the second pin is connected to the second pin of the collision sensor 310, and one end of the third pin of the control chip ECU is connected to the signal processing unit 430, and the other end of the third pin of the control chip ECU is connected to the control unit 440.
The signal generating unit 410, the signal collecting unit 420 and the signal processing unit 430 are integrated on a control chip ECU, the PWM square wave signal generated by the control chip ECU is transmitted to the collision sensor 310 through a first pin of the control chip ECU, and whether the PWM square wave signal is output from a second pin of the collision sensor 310 is collected through a second pin of the control chip ECU. If the collision sensor 310 detects that the fuel cell stack 100 collides, the first pin and the second pin of the collision sensor 310 are connected, and the second pin of the control chip ECU inputs a PWM square wave signal, so the control chip ECU controls the third pin to output a low level according to the PWM square wave signal to control the fuel cell stack 100 and the DC-DC conversion module 200 to be disconnected. If the fuel cell stack 100 is not collided, the first pin and the second pin of the collision sensor 310 are not communicated, so that the PWM square wave signal input from the first pin by the collision sensor 310 does not pass through the second pin, and the second pin of the control chip ECU does not receive the PWM square wave signal, the third pin of the control chip ECU outputs a high level to control the connection of the fuel cell stack 100 and the DC-DC conversion module 200. The control chip ECU outputs a PWM square wave signal through the first pin, collects the PWM square wave signal through the second pin, and controls the third pin to output a high level or a low level according to whether the PWM square wave signal is received, thereby controlling the fuel cell stack 100 and the DC-DC conversion module 200 to be connected or disconnected. Therefore, the operation of controlling the connection or disconnection of the fuel cell stack 100 and the DC-DC conversion module 200 is simple.
In some embodiments, the control unit 440 includes a high voltage contactor, one end of a normally open contact of the high voltage contactor is connected to the fuel cell stack 100, and the other end is connected to the DC-DC conversion module 200; one end of a coil of the high-voltage contactor is connected with a power supply, and the other end of the coil is connected with a third pin of the control chip ECU.
When the control chip ECU outputs a high level and the high voltage contactor receives the high level, the coil of the high voltage contactor is energized and the normally open contact of the high voltage contactor is closed, so that the fuel cell stack 100 and the DC-DC conversion module 200 are communicated. When the control chip ECU outputs a low level, the high voltage contactor receives the low level, the coil of the high voltage contactor is not electrified, and therefore, the normally open contact of the high voltage contactor is disconnected, and the fuel cell stack 100 and the DC-DC conversion module 200 are disconnected to cut off a high voltage loop, thereby avoiding dangers such as electric shock of personnel or short circuit and explosion when the fuel cell is extruded.
A fuel cell protection system according to an embodiment of the present invention will be described in detail with a specific embodiment with reference to fig. 1 and 2. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.
The PWM square wave signal generated by the control chip ECU is sent to the collision sensor 310 through the first pin of the control chip ECU, when a severe collision occurs, the collision sensor 310 detects that the fuel cell stack 100 is extruded, the first pin and the second pin of the collision sensor 310 are connected, the second pin of the control chip ECU inputs the PWM square wave signal, and the control chip ECU controls the third pin to output a low level according to the PWM square wave signal. When the high-voltage contactor receives a low level, the coil of the high-voltage contactor is not electrified, so that the coil of the high-voltage contactor is not electrified, the normally open contact of the high-voltage contactor is disconnected, the fuel cell pack 100 and the DC-DC conversion module 200 are disconnected, a high-voltage loop is cut off, and dangers such as short circuit and explosion when people get an electric shock or the fuel cell is extruded are avoided.
In a second aspect, the embodiment of the present invention further includes an electric vehicle, including: such as the fuel cell protection system of the first aspect and the automobile body.
The fuel cell protection system of the first aspect is arranged in the automobile body, so that the electric automobile protected by collision is obtained, and the safety of the electric automobile is improved.
In a third aspect, referring to fig. 3, an embodiment of the present invention further discloses a fuel cell protection method, including:
s100, detecting whether the fuel cell stack collides to acquire a collision detection signal;
and S200, controlling the on-off of the fuel cell stack and the DC-DC conversion module according to the collision detection signal.
Whether the fuel cell set collides or not is detected to obtain a collision detection signal, and the fuel cell set and the DC-DC conversion module are controlled to be switched on and off according to the collision detection signal, so that the connection between the fuel cell set and the DC-DC conversion module can be disconnected when collision occurs, and dangers such as short circuit and even explosion when personnel contact or fuel cell extrusion occurs are avoided.
And if the collision detection signal is that the collision exists, controlling the fuel cell stack to be disconnected with the DC-DC conversion module. If the collision detection signal is no collision, the fuel cell stack is controlled to be connected with the DC-DC conversion module so as to break the high-voltage loop only when collision occurs, and the fuel cell stack is connected with the DC-DC conversion module when collision does not occur, so that the safety of the fuel cell stack is improved.
Referring to fig. 4, in some embodiments, step S100 includes:
s110, sending a collision signal to a collision sensor, and collecting a collision detection signal output by the collision sensor;
s120, if collision occurs, a collision detection signal is that a first pin and a second pin of a collision sensor are communicated;
and S130, if no collision occurs, the first pin and the second pin of the collision sensor are disconnected according to the collision detection signal.
Whether the fuel cell stack collides or not is detected through the collision sensor, when the fuel cell stack collides, the collision sensor is internally conducted after being extruded and deformed, namely, the first pin and the second pin of the collision sensor are communicated, then a collision signal input through the first pin can be detected from the second pin, and then the collision detection signal is a collision signal. If the collision sensor is not squeezed and the first pin and the second pin of the collision sensor are not communicated, the collision sensor cannot receive a collision signal through the second pin of the collision sensor, and the collision detection signal is a no signal. Therefore, whether the fuel cell stack collides or not is judged according to whether the first pin and the second pin of the collision sensor are communicated or not by inputting the collision signal to the collision sensor, so that whether the fuel cell stack collides or not is accurately monitored.
The specific circuit connection structure of a fuel cell protection method refers to the fuel cell protection system of the first aspect, and is not described herein again.
In a fourth aspect, embodiments of the present invention disclose a computer-readable storage medium having computer-executable instructions stored thereon for causing a computer to perform a fuel cell protection method as described in the third aspect.
The above-described embodiments of the apparatus are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may also be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

Claims (7)

1. A fuel cell protection system, comprising:
a fuel cell stack;
a DC-DC conversion module electrically connected to the fuel cell stack;
the collision detection module is used for detecting whether the fuel cell stack collides to obtain a collision detection signal;
and the control module is electrically connected with the collision detection module and used for receiving the collision detection signal and controlling the fuel cell stack and the DC-DC conversion module to be disconnected or kept connected according to the collision detection signal.
2. The fuel cell protection system of claim 1, wherein the collision detection module includes a plurality of collision sensors, first pins of the plurality of collision sensors being connected in parallel, second pins of the plurality of collision sensors being connected in parallel.
3. The fuel cell protection system of claim 2, wherein the control module comprises:
a signal generating unit for sending a collision signal to the first pin of the collision sensor
The signal acquisition unit is used for acquiring a collision detection signal of a second pin of the collision sensor;
a signal processing unit for outputting a processing signal according to the collision detection signal;
and the control unit is used for controlling the connection or disconnection of the fuel cell stack and the DC-DC conversion module according to the processing signal.
4. The fuel cell protection system of claim 3, wherein the signal generating unit, the signal collecting unit and the signal processing unit are integrated on a control chip, the control chip is provided with a first pin, a second pin and a third pin, one end of the first pin of the control chip is connected with the signal generating unit, the other end of the first pin of the control chip is connected with the first pin of the collision sensor, one end of the second pin of the control chip is connected with the signal collecting unit, the other end of the second pin of the control chip is connected with the second pin of the collision sensor, and one end of the third pin of the control chip is connected with the signal processing unit, and the other end of the third pin of the control chip is connected with the control unit.
5. The fuel cell protection system according to claim 4, wherein the control unit includes: a high voltage contactor;
one end of a normally open contact of the high-voltage contactor is connected with the other end of the fuel cell pack and is connected with the DC-DC conversion module;
and one end of a coil of the high-voltage contactor is connected with a power supply, and the other end of the coil is connected with a third pin of the control chip.
6. The fuel cell protection system according to any one of claims 2 to 5, wherein a plurality of the collision sensors are uniformly arranged on the periphery of the fuel cell stack.
7. An electric vehicle, characterized by comprising: the fuel cell protection system according to any one of claims 1 to 6, and an automobile body.
CN202023286407.5U 2020-12-29 2020-12-29 Fuel cell protection system and electric automobile Active CN214215484U (en)

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Application Number Priority Date Filing Date Title
CN202023286407.5U CN214215484U (en) 2020-12-29 2020-12-29 Fuel cell protection system and electric automobile

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Application Number Priority Date Filing Date Title
CN202023286407.5U CN214215484U (en) 2020-12-29 2020-12-29 Fuel cell protection system and electric automobile

Publications (1)

Publication Number Publication Date
CN214215484U true CN214215484U (en) 2021-09-17

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Country Link
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