Battery ejection device of new energy vehicle

Abstract

The utility model relates to a battery ejection device of a new energy vehicle, and belongs to the technical field of batteries of new energy vehicles. The device comprises an ejection mechanism, the ejection mechanism comprises an air storage tank and a driving air cylinder, the air storage tank is connected with the driving air cylinder through an air supply pipe, a control valve is arranged on the air supply pipe, the ejection mechanism is arranged on a battery frame, and the battery frame is installed on a chassis. The battery frame comprises an open end used for lateral in and out of a battery and a closed end arranged at the end opposite to the open end, the air storage tank, the driving air cylinder and the control valve are arranged on the closed end side of the battery frame, and a battery containing bin is arranged in the battery frame. And a push rod of the driving cylinder can act on the battery to eject the battery out of the battery frame. The side battery replacement device is simple in structure, side battery replacement is convenient and fast, the battery replacement efficiency of the new energy vehicle is greatly improved, when the battery is abnormal, the battery can be ejected out emergently to be separated from the vehicle, and therefore the safety of passengers and properties is guaranteed.

Description

Technical Field

[0001] This utility model relates to a battery ejection device for new energy vehicles, belonging to the field of new energy vehicle battery technology. Background Technology

[0002] New energy vehicles are cars that use batteries as an energy storage power source. The batteries provide electrical energy to the electric motor to drive the motor, thereby propelling the car. They have advantages such as zero emissions and a wide range of energy sources. They are an important means to alleviate the shortage of oil resources and the serious air pollution in cities, and an effective vehicle for promoting the transformation of transportation development models and promoting energy conservation and emission reduction.

[0003] Batteries are a crucial component of new energy vehicles. Currently, most methods integrate batteries directly into the vehicle's frame, making them part of the vehicle's structure. While this reduces the need for separate battery support structures, it also means the battery can only be charged to increase range. Even with fast charging, a full charge takes a considerable amount of time. The long charging time and limited charging infrastructure are the biggest challenges for charging and energy storage in new energy vehicles.

[0004] Furthermore, spontaneous combustion in new energy vehicles has multiple causes. Sixty percent of these fires are caused by thermal runaway of the battery itself. Even external factors such as vehicle vibration, compression, collisions, and fire can cause battery structural collapse, electrolyte leakage, and internal short circuits, leading to instantaneous spontaneous combustion. To address these battery-related anomalies, companies have developed several mature products for real-time monitoring. For example, patent application CN105904992A, entitled "A Battery Monitoring and Management System and Monitoring Method for Electric Vehicles," discloses a system that monitors parameters such as temperature, smoke, gas, and flames, promptly detecting battery anomalies and issuing warnings and activating actuators when an anomaly occurs. While the system analyzes the anomaly and controls the actuators for cooling or fire suppression, the effectiveness of these measures is limited. Furthermore, since the battery remains attached to the vehicle, the vehicle still poses a potential danger, easily harming the safety of passengers. Therefore, it is necessary to improve the battery installation of existing new energy vehicles so that when the battery malfunctions, the battery monitoring and management system can be used to promptly detach the battery from the vehicle body, thereby ensuring the personal and property safety of passengers. Summary of the Invention

[0005] This utility model addresses the shortcomings of existing technologies by providing a battery ejection device for new energy vehicles.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A battery ejection device for a new energy vehicle includes an ejection mechanism, the ejection mechanism including an air tank and a drive cylinder, the air tank being connected to the drive cylinder via an air supply pipe, the air supply pipe being provided with a control valve, the ejection mechanism being mounted on a battery frame, the battery frame being mounted on the chassis of the new energy vehicle, the battery frame including an open end for the battery to enter and exit laterally and a closed end located at the opposite end of the open end, the air tank, the drive cylinder and the control valve being respectively located on the closed end side of the battery frame, the battery frame having a receiving compartment for accommodating the battery, and when the battery is abnormal, the push rod of the drive cylinder can act on the battery to eject it from the battery frame.

[0007] The beneficial effects of this utility model are as follows: the battery can be inserted into and removed from the battery frame from the open end, enabling lateral battery swapping and achieving rapid battery replacement. A fully charged battery can be directly installed, and under normal circumstances, the vehicle can complete the lateral battery swapping in a short time, achieving rapid battery swapping for new energy vehicles. Its speed is comparable to refueling time in a gasoline car, eliminating driver concerns about waiting time. When the battery of the new energy vehicle malfunctions, the battery monitoring and management system controls the control valve to operate. High-pressure gas in the gas tank can enter the drive cylinder through the gas supply pipe, pushing the push rod in the drive cylinder, thereby ejecting the malfunctioning battery from the battery frame and the new energy vehicle, ensuring the safety of the new energy vehicle and its occupants. This utility model has a simple structure, facilitates convenient and rapid lateral battery swapping, significantly improves the battery swapping efficiency of new energy vehicles, and can urgently eject the battery from the vehicle in case of battery malfunction, thus ensuring the safety of passengers and property.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the ejection mechanism is provided in pairs and is symmetrically arranged on both sides of the battery frame.

[0010] The advantage of adopting the above-mentioned further scheme is that the two ejection mechanisms act on both sides of the battery respectively, and the two work together to achieve a more stable ejection of the battery with a smaller force.

[0011] Furthermore, the battery has a lug plate on its side, and the push rod of the drive cylinder can act on the lug plate.

[0012] The advantage of adopting the above-mentioned further solution is that the push rod of the drive cylinder can push the battery by acting on the ear plate, thereby pushing the abnormal battery out of the receiving compartment.

[0013] Furthermore, the battery frame is provided with a sliding groove for guiding and limiting the ear plate.

[0014] The advantage of adopting the above-mentioned further solution is that the slide can guide and limit the battery entering and exiting the battery frame, so as to ensure that the battery is accurately installed in the battery frame and that the battery can be smoothly removed from the battery frame.

[0015] Furthermore, the battery frame is provided with a vehicle-side electrical connector and a vehicle-side water connector. The battery-side electrical connector can be inserted and mated with the vehicle-side electrical connector to supply power to the new energy vehicle, and the battery-side water connector can be sealed and mated with the vehicle-side water connector to cool the battery.

[0016] The beneficial effects of adopting the above-mentioned further solution are that after the battery is inserted into the battery frame of the new energy vehicle, the battery's end electrical connector can be inserted and mated with the vehicle's end electrical connector, and the battery can meet the power supply needs of the new energy vehicle through the vehicle's end electrical connector on the battery frame; the battery's end water connector can be sealed and mated with the vehicle's end water connector, and the battery can meet the needs of heat dissipation and cooling of the battery by communicating with the refrigerant of the new energy vehicle through the vehicle's end water connector on the battery frame, thereby extending the battery's service life.

[0017] Furthermore, the containment compartment is equipped with sensors that collect signals and transmit them to the on-board processor of the new energy vehicle. The on-board processor can control the opening and closing of the control valve.

[0018] The beneficial effect of adopting the above-mentioned further solution is that when the battery malfunctions, the sensor collects signals such as temperature signals and transmits the signals to the vehicle processor of the monitoring and management system. After analyzing and confirming the malfunction, the vehicle processor can drive the control valve to work. The high-pressure gas in the gas tank enters the drive cylinder through the gas supply pipe to push its push rod, thereby pushing the battery and pushing the malfunctioning battery out of the battery frame and outside the vehicle, ensuring the safety of the vehicle and the people inside.

[0019] Furthermore, the push rod of the drive cylinder and / or the battery are provided with damping blocks.

[0020] The beneficial effect of adopting the above-mentioned further solution is that the damping block can be set on the push rod of the drive cylinder, or on the ear plate of the battery, or both the push rod of the drive cylinder and the ear plate of the battery can be equipped with damping blocks; since the battery needs to detach from the vehicle body in the shortest possible time when an abnormality occurs, a relatively large instantaneous thrust is required. Faced with the instantaneous thrust of the push rod acting on the battery, the damping block can absorb the instantaneous impact and avoid damage to the push rod's working position and the push rod.

[0021] Furthermore, the control valve is a fast electromagnetic exhaust valve.

[0022] The beneficial effect of adopting the above-mentioned further solution is that the control valve has a valve body air inlet end connected to the air tank, a fast exhaust end connected to the air inlet of the drive cylinder, and an electrical signal receiving end that can control the opening and closing of the valve body air inlet end according to the electrical signal. When the battery is abnormal, the electrical signal receiving end can receive the instruction of the vehicle processor to drive it to work. The high pressure gas in the air tank can reach the air inlet of the cylinder through the air supply pipe, and push the push rod of the drive cylinder to push the battery to push the abnormal battery out of the housing, thereby achieving the purpose of ensuring the safety of the vehicle and personnel.

[0023] Furthermore, a magnetic fixing structure for fixing the battery is provided between the battery frame and the battery.

[0024] The beneficial effect of adopting the above-mentioned further solution is that after the battery is installed in the battery frame, it can be magnetically attracted to the battery frame by the magnetic fixing structure, which further increases the stability of the battery in the battery frame; before the battery needs to be removed from the battery frame, it can be demagnetized by the magnetic fixing structure, so that the battery can be pulled out of the battery frame for battery replacement, or to prepare for the ejection mechanism to push the battery out of the battery frame.

[0025] Furthermore, the magnetic fixing structure includes an electromagnet and a ferromagnetic structure that can be magnetically attracted to the electromagnet. The electromagnet is disposed on the battery frame, and the ferromagnetic structure is disposed on the battery.

[0026] The beneficial effect of adopting the above-mentioned further solution is that the ferromagnetic structure can be steel plate, iron plate, etc. After the battery is inserted into the receiving compartment of the battery frame through the open end, the power is turned off and the magnetism is turned on to magnetically attract the battery to the battery frame, further ensuring the stable positioning of the battery; when it is necessary to swap the battery laterally or when an abnormality occurs and the battery needs to be ejected, the power can be turned on to demagnetize, preparing the battery to detach from the battery frame. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0028] Figure 2 This is a top view of the structure of this utility model;

[0029] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0030] In the diagram, 1 is the air tank; 2 is the drive cylinder; 3 is the air supply pipe; 4 is the control valve; 5 is the damping block; 6 is the battery; 601 is the ear plate; 602 is the battery-side electrical connector; 603 is the battery-side water connector; 604 is the ferromagnetic structure; 7 is the battery frame; and 701 is the slide. Detailed Implementation

[0031] The principles and features of this utility model are described below with reference to examples. The examples are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0032] like Figure 1-Figure 3 As shown, a battery ejection device for a new energy vehicle includes an ejection mechanism. The ejection mechanism includes an air tank 1 and a drive cylinder 2. The air tank 1 is connected to the drive cylinder 2 via an air supply pipe 3. A control valve 4 is provided on the air supply pipe 3. The ejection mechanism is mounted on a battery frame 7, which is installed on the chassis of the new energy vehicle. The battery frame 7 includes an open end for the battery to enter and exit laterally and a closed end located at the opposite end of the open end. The air tank 1, the drive cylinder 2, and the control valve 4 are respectively located on the closed end side of the battery frame 7. The battery frame 7 has a receiving compartment for accommodating a battery 6. When the battery is abnormal, the push rod of the drive cylinder 2 can act on the battery 6 to eject it from the battery frame 7.

[0033] The ejection mechanism is provided in pairs and symmetrically arranged on both sides of the battery frame 7. The two ejection mechanisms act on both sides of the battery respectively, and together they can achieve a more stable ejection of the battery with a smaller force.

[0034] The battery 6 has a lug plate 601 on its side, and the push rod of the drive cylinder 2 can act on the lug plate 601. The push rod of the drive cylinder 2 can push the battery 6 by acting on the lug plate 601, thereby pushing the abnormal battery out of the receiving compartment.

[0035] The battery frame 7 has a sliding groove 701 on its side for guiding and limiting the battery 6 and / or the ear plate 601. The sliding groove 701 can guide and limit the battery entering and exiting the battery frame 7 to ensure that the battery is installed in the correct position within the battery frame 7.

[0036] The battery frame 7 is equipped with a vehicle-side electrical connector and a vehicle-side water connector. The battery-side electrical connector 602 on the battery 6 can be inserted and mated with the vehicle-side electrical connector to supply power to the new energy vehicle. The battery-side water connector 603 on the battery can be sealed and mated with the vehicle-side water connector to cool the battery. After the battery 6 is inserted into the battery frame 7 of the new energy vehicle, the battery-side electrical connector 602 of the battery 6 can be inserted and mated with the vehicle-side electrical connector, and the battery 6 can meet the power supply needs of the new energy vehicle through the vehicle-side electrical connector on the battery frame 7. The battery-side water connector 603 of the battery 6 can be sealed and mated with the vehicle-side water connector, and the battery 6 can meet the refrigerant connection needs of the new energy vehicle through the vehicle-side water connector on the battery frame 7 to dissipate heat and cool the battery, thereby extending the service life of the battery 6.

[0037] Sensors are installed within the containment chamber to collect temperature signals and other data, which are then transmitted to the vehicle's onboard processor. The onboard processor controls the opening and closing of the control valve 4. The sensors can be one or more of a smoke concentration sensor, gas concentration sensor, temperature sensor, and flame sensor. The onboard processor receives signals of battery thermal runaway parameters transmitted by the sensors, analyzes and processes these parameters, and determines whether a battery abnormality has occurred. When the battery 6 experiences overheating, spontaneous combustion, or other abnormalities, the sensors collect signals and transmit them to the onboard processor. After confirming the abnormality, the onboard processor activates the control valve 4. High-pressure gas from the gas tank 1 then enters the drive cylinder 2 through the gas supply pipe 3, pushing its push rod and subsequently the battery. This pushes the abnormal battery out of the battery frame 7 and outside the vehicle, ensuring the safety of the vehicle and its occupants.

[0038] The push rod of the drive cylinder 2 and / or the battery 6 are provided with damping blocks 5. The damping blocks 5 can be set on the push rod of the drive cylinder 2, or on the ear plate 601 of the battery 6, or both the push rod of the drive cylinder 2 and the ear plate 601 of the battery 6 can be provided with damping blocks 5; since the battery needs to detach from the vehicle body as quickly as possible in case of an abnormality, a relatively large instantaneous thrust is required. Faced with the instantaneous thrust of the push rod acting on the battery, the damping blocks 5 can absorb the instantaneous impact and avoid damage to the push rod's operating position and the push rod itself.

[0039] The control valve 4 is a fast electromagnetic exhaust valve. The control valve 4 has a valve body inlet P connected to the air tank 1, a fast exhaust end O connected to the air inlet of the drive cylinder 2, and an electrical signal receiving end A that can control the opening and closing of the valve body inlet according to the electrical signal. When the battery is abnormal, the electrical signal receiving end can receive the instruction from the vehicle processor to drive it to work. The high-pressure gas in the air tank 1 can reach the air inlet of the cylinder through the air supply pipe 3, and push the push rod of the drive cylinder 2, thereby pushing the battery to push the abnormal battery out of the storage compartment, so as to ensure the safety of the vehicle and personnel.

[0040] The battery frame is installed on the new energy vehicle. The new energy vehicle body has a decorative door on the open end side corresponding to the battery frame. When the battery pops out, the battery can break open the door. In order to eliminate greater potential dangers, damage to the battery and the door is permissible.

[0041] A magnetic fixing structure for securing the battery is also provided between the battery frame 7 and the battery 6. After the battery 6 is installed in the battery frame 7, it can be magnetically attracted to the battery frame 7 by the magnetic fixing structure, further increasing the stability of the battery 6 within the battery frame 7. Before the battery 6 needs to be removed from the battery frame 7, it can be demagnetized by the magnetic fixing structure, allowing the battery 6 to be pulled out of the battery frame 7 for replacement, or to prepare for the ejection mechanism to push the battery 6 out of the battery frame 7.

[0042] The magnetic fixing structure includes an electromagnet and a ferromagnetic structure 604 that can be magnetically attracted to the electromagnet. The electromagnet is disposed on the battery frame 7, and the ferromagnetic structure 604 is disposed on the battery. The ferromagnetic structure 604 can be a steel plate, iron plate, etc. After the battery 6 is inserted into the receiving compartment of the battery frame 7 through the open end, the power is turned off and the magnetism is turned on to magnetically attract the battery to the battery frame 7, further ensuring the stable positioning of the battery. When a side-mounted battery replacement is required or when an abnormality occurs and the battery 6 needs to be ejected, the power can be turned on to demagnetize it, preparing for the battery 6 to detach from the battery frame 7.

[0043] This utility model's battery frame 7 is installed on a new energy vehicle. The battery 6 can be inserted into and removed from the battery frame 7 through its open end, enabling lateral battery swapping of the battery 6. This achieves rapid battery replacement, directly replacing the battery 6 with a fully charged one. Under normal circumstances, the vehicle can complete lateral battery swapping in 3-5 minutes, achieving rapid battery swapping for new energy vehicles, comparable to refueling time in a gasoline car, eliminating driver concerns about waiting time. Sensors collect temperature signals and transmit them to the vehicle's onboard processor in the battery monitoring and management system. After processing, the onboard processor detects a battery abnormality and controls the control valve 4 to operate. High-pressure gas in the gas tank 1 enters the drive cylinder 2 through the gas supply pipe 3. The gas tank 1 fills the drive cylinder 2 with high-pressure gas, causing the drive cylinder 2 to quickly push the battery 6 away from the new energy vehicle. The gas tank 1 can conventionally be filled with high-pressure nitrogen, with a pressure of 1-10 MPa, and the drive cylinder 2 itself also has corresponding pressure resistance. This utility model has a simple structure and can perform convenient and quick lateral battery swapping, which greatly improves the battery swapping efficiency of new energy vehicles. In case of battery abnormality, it can urgently eject the battery from the new energy vehicle to ensure the safety of the new energy vehicle and its occupants.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A battery ejection device for a new energy vehicle, characterized in that, The system includes an ejection mechanism, which comprises an air tank (1) and a drive cylinder (2). The air tank (1) is connected to the drive cylinder (2) via an air supply pipe (3). A control valve (4) is provided on the air supply pipe (3). The ejection mechanism is mounted on a battery frame (7), which is installed on the chassis of a new energy vehicle. The battery frame (7) includes an open end for the side entry and exit of the battery (6) and a closed end located at the opposite end of the open end. The air tank (1), the drive cylinder (2), and the control valve (4) are respectively located on the closed end side of the battery frame (7). The battery frame (7) has a receiving compartment for accommodating the battery (6). When the battery is abnormal, the push rod of the drive cylinder (2) can act on the battery (6) to eject it from the battery frame (7).

2. The battery ejection device for a new energy vehicle according to claim 1, characterized in that, The ejection mechanism is provided in pairs and is symmetrically arranged on both sides of the battery frame (7).

3. The battery ejection device for a new energy vehicle according to claim 2, characterized in that, The battery (6) is provided with an ear plate (601), and the push rod of the drive cylinder (2) can act on the ear plate (601).

4. The battery ejection device for a new energy vehicle according to claim 3, characterized in that, The side of the battery frame (7) is provided with a groove (701) for guiding and limiting the ear plate (601).

5. The battery ejection device for a new energy vehicle according to any one of claims 1-4, characterized in that, The battery frame (7) is provided with a vehicle-end electrical connector and a vehicle-end water connector. The battery-end electrical connector (602) on the battery (6) can be inserted and matched with the vehicle-end electrical connector to supply power to the new energy vehicle. The battery-end water connector (603) on the battery (6) can be sealed and connected with the vehicle-end water connector to cool the battery.

6. The battery ejection device for a new energy vehicle according to any one of claims 1-4, characterized in that, The compartment is equipped with a sensor that collects signals and transmits them to the vehicle processor of the new energy vehicle. The vehicle processor can control the opening and closing action of the control valve (4).

7. The battery ejection device for a new energy vehicle according to claim 1, characterized in that, The push rod of the drive cylinder (2) and / or the battery (6) are provided with damping blocks (5).

8. The battery ejection device for a new energy vehicle according to claim 1, characterized in that, The control valve (4) is a fast electromagnetic exhaust valve.

9. The battery ejection device for a new energy vehicle according to any one of claims 1-4, characterized in that, A magnetic fixing structure for fixing the battery (6) is also provided between the battery frame (7) and the battery (6).

10. The battery ejection device for a new energy vehicle according to claim 9, characterized in that, The magnetic fixing structure includes an electromagnet and a ferromagnetic structure (604) that can magnetically attract the electromagnet. The electromagnet is disposed on the battery frame (7), and the ferromagnetic structure (604) is disposed on the battery (6).

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