An eVTOL lithium battery fire extinguishing device

Abstract

The application designs an eVTOL lithium battery fire extinguishing device, which comprises a battery compartment, a rectifier, a fire extinguishing controller and a fire extinguishing nozzle; the controller is connected with the fire extinguishing nozzle; the battery compartment is connected with the input end of the rectifier through a line; the battery compartment comprises a first battery compartment and a second battery compartment, the positive and negative poles of the first battery compartment and the second battery compartment are respectively connected with the input end of the rectifier through a line; the output end of the rectifier is connected with the controller. By using double battery compartments to supply power to the fire extinguishing controller, once one of the battery compartments fails, the power supply to the fire extinguishing controller is immediately stopped, and the other battery compartment is powered alone, and an inductor is arranged in the battery for fault alarm, so as to ensure the operation of the fire extinguishing device and keep effective control on the fire extinguishing nozzle.

Description

Technical Field

[0001] This utility model belongs to the field of battery fire extinguishing, specifically relating to an eVTOL lithium battery fire extinguishing device. Background Technology

[0002] The electric vertical takeoff and landing (eVTOL) aircraft industry is experiencing rapid growth, with broad application prospects in public transportation, medical rescue, and logistics. With continuous breakthroughs and innovations in key technologies such as new energy, autonomous driving, and aviation technology, the performance, safety, and economy of eVTOLs have been significantly improved. However, the battery hazards of eVTOL aircraft cannot be ignored. Battery malfunctions, overheating, or even fires will inevitably lead to damage to the eVTOL aircraft.

[0003] Therefore, it is particularly important to manage the batteries inside the eVTOL aircraft to ensure that the battery fire suppression controller can work continuously. However, if the batteries inside the existing eVTOL aircraft malfunction, the fire suppression controller connected to them will also fail instantly. Utility Model Content

[0004] To address the aforementioned issues, this application proposes an eVTOL lithium battery fire suppression device. This device utilizes a dual-battery compartment to power the fire suppression controller and incorporates sensors within the batteries for fault alarms, ensuring timely emergency response for the eVTOL aircraft.

[0005] An eVTOL lithium battery fire extinguishing device includes a battery compartment, a rectifier, a fire extinguishing controller, and a fire extinguishing nozzle;

[0006] The battery compartment is connected to the input terminal of the rectifier via a line;

[0007] The battery compartment includes a first battery compartment and a second battery compartment, and the positive and negative terminals of the first battery compartment and the second battery compartment are connected through a line and the input terminal of the rectifier, respectively.

[0008] The output of the rectifier is connected to the fire extinguishing controller;

[0009] The fire extinguishing nozzle is connected to the fire extinguishing controller.

[0010] Preferably, a circuit breaker with leakage protection is installed on the line between the first battery compartment and the rectifier.

[0011] A circuit breaker with leakage protection is installed on the line between the second battery compartment and the rectifier.

[0012] Preferably, a sensor is provided on the positive electrode of the battery compartment, and the sensor is a composite sensor for pressure, temperature and smoke detection.

[0013] Preferably, a relay is also provided on the positive terminal of the battery compartment, and the signal terminal of the relay is connected to a sensor to control the on / off state of the positive terminal of the battery compartment.

[0014] Preferably, the sensor is equipped with a fault pressure alarm light, an overheat alarm light, and a fire alarm light.

[0015] Preferably, a manual switch is provided between the positive and negative terminals of the fire extinguishing nozzle.

[0016] Preferably, the number of sensors is two or more sets.

[0017] The advantages and effects of this application are as follows:

[0018] This application designs an eVTOL lithium battery fire extinguishing device, including a battery compartment, a rectifier, a fire extinguishing controller, and a fire extinguishing nozzle. The battery compartment is connected to the input terminal of the rectifier via a circuit. The battery compartment includes a first battery compartment and a second battery compartment, with the positive and negative terminals of the first and second battery compartments respectively connected to the input terminal of the rectifier via circuits. The output terminal of the rectifier is connected to the controller. By using dual battery compartments to power the fire extinguishing controller, if one of the battery compartments fails, the power supply to the fire extinguishing controller is immediately stopped, and a sensor is installed inside the battery for fault alarm, ensuring that the eVTOL aircraft can receive timely emergency response.

[0019] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings.

[0020] The above and other objects, advantages and features of this application will become more apparent to those skilled in the art from the following detailed description of specific embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1A circuit diagram of an eVTOL lithium battery fire extinguishing device designed for this application. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. In the following description, specific details such as specific configurations and components are provided merely to help fully understand the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. In addition, for clarity and brevity, descriptions of known functions and structures are omitted in the embodiments.

[0024] It should be understood that the phrase "an embodiment" or "this embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "an embodiment" or "this embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0025] Furthermore, reference numerals and / or letters may be repeated in different examples within this application. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.

[0026] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0027] In this article, the term "at least one" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, "at least one of A and B" can mean: A exists alone, A and B exist simultaneously, or B exists alone.

[0028] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion.

[0029] Example 1

[0030] Please refer to Figure 1 This embodiment mainly introduces an eVTOL lithium battery fire extinguishing device, including a battery compartment, a rectifier, a fire extinguishing controller, and a fire extinguishing nozzle;

[0031] The battery compartment is connected to the input terminal of the rectifier via a line;

[0032] The battery compartment includes a first battery compartment and a second battery compartment, and the positive and negative terminals of the first battery compartment and the second battery compartment are connected through a line and the input terminal of the rectifier, respectively.

[0033] The output of the rectifier is connected to the fire extinguishing controller;

[0034] The fire extinguishing nozzles are connected to the fire extinguishing controller. When one of the battery compartments malfunctions, it will not affect the actual operation of the fire extinguishing controller, because the other battery compartment will continue to operate, ensuring the operation of the fire extinguishing device and maintaining effective control over the fire extinguishing nozzles.

[0035] Furthermore, a circuit breaker with leakage protection is installed on the line between the first battery compartment and the rectifier.

[0036] A circuit breaker with leakage protection is installed on the line between the second battery compartment and the rectifier. Circuit breakers QF1 and QF2 are equipped with leakage protection. When a short circuit, leakage, or overload occurs in the circuit, the circuit breaker will automatically trip to protect the entire circuit.

[0037] Furthermore, sensors are installed on the positive terminal of the battery compartment. Sensors SEN1 and SEN2 are located in the first battery compartment, and sensors SEN3 and SEN4 are located in the second battery compartment. These sensors are composite sensors that detect pressure, temperature, and smoke. The purpose of using dual sensors is to prevent false alarms.

[0038] Furthermore, the sensors are equipped with fault pressure alarms, overheat alarms, and fire alarms, which can take the form of fault pressure alarm lights, overheat alarm lights, and fire alarm lights.

[0039] The eVTOL aircraft's lithium battery is equipped with two sets of composite sensors that detect pressure, temperature, and smoke, enhancing the reliability of the fire suppression system. These sensors monitor the lithium battery status in real time. When increased pressure in the battery compartment, abnormal temperature rise, or the generation of gas or smoke is detected, corresponding light alarms are triggered, facilitating fire suppression control by the fire suppression controller.

[0040] Furthermore, a relay is also provided on the positive terminal of the battery compartment. The signal terminal of the relay is connected to a sensor and is used to control the on / off state of the positive terminal of the battery compartment. When sensor SEN1 and / or SEN2 sends a signal, or sensor SEN3 and / or SEN4 sends a signal, the relay closes, cutting off the power supply from the corresponding battery compartment to the controller.

[0041] Furthermore, a manual switch is installed between the positive and negative terminals of the fire extinguishing nozzle. This switch is connected to the manual / automatic rotary switch in the eVTOL cockpit, and is used to control the activation of the fire extinguishing device. The driver can assess the situation on site and choose whether to activate the fire extinguishing nozzle based on the sensor status.

[0042] This application designs an eVTOL lithium battery fire extinguishing device, including a battery compartment, a rectifier, a fire extinguishing controller, and a fire extinguishing nozzle. The battery compartment is connected to the input terminal of the rectifier via a circuit. The battery compartment includes a first battery compartment and a second battery compartment, with the positive and negative terminals of the first and second battery compartments respectively connected to the input terminal of the rectifier via circuits. The output terminal of the rectifier is connected to the controller. By using dual battery compartments to power the fire extinguishing controller, if one of the battery compartments fails, the power supply to the fire extinguishing controller is immediately stopped, and a sensor is installed inside the battery for fault alarm, ensuring that the eVTOL aircraft can receive timely emergency response.

[0043] The above description is merely a preferred embodiment of this utility model and does not limit the scope of protection of this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any changes, modifications, substitutions, integrations, and parameter alterations made to these embodiments within the spirit and principles of this utility model, through conventional substitutions or methods that achieve the same function without departing from the principles and spirit of this utility model, fall within the scope of protection of this utility model.

Claims

1. An eVTOL lithium battery fire extinguishing device, characterized in that, Includes battery compartment, rectifier, fire extinguishing controller and fire extinguishing nozzle; The battery compartment is connected to the input terminal of the rectifier via a line; The battery compartment includes a first battery compartment and a second battery compartment, and the positive and negative terminals of the first battery compartment and the second battery compartment are connected through a line and the input terminal of the rectifier, respectively. The output of the rectifier is connected to the fire extinguishing controller; The fire extinguishing nozzle is connected to the fire extinguishing controller.

2. The eVTOL lithium battery fire extinguishing device according to claim 1, characterized in that, A circuit breaker with leakage protection is installed on the line between the first battery compartment and the rectifier. A circuit breaker with leakage protection is installed on the line between the second battery compartment and the rectifier.

3. The eVTOL lithium battery fire extinguishing device according to claim 2, characterized in that, A sensor is installed on the positive terminal of the battery compartment. The sensor is a composite sensor that detects pressure, temperature, and smoke.

4. The eVTOL lithium battery fire extinguishing device according to claim 3, characterized in that, A relay is also installed on the positive terminal of the battery compartment. The signal terminal of the relay is connected to a sensor and is used to control the on / off state of the positive terminal of the battery compartment.

5. The eVTOL lithium battery fire extinguishing device according to claim 3, characterized in that, The sensors are equipped with fault pressure alarm lights, overheat alarm lights, and fire alarm lights.

6. The eVTOL lithium battery fire extinguishing device according to claim 1, characterized in that, A manual switch is provided between the positive and negative terminals of the fire extinguishing nozzle.

7. The eVTOL lithium battery fire extinguishing device according to claim 3, characterized in that, The number of sensors is two or more.

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