Battery pop-up device based on lateral battery replacement new energy vehicle

Abstract

The utility model relates to a battery pop-up device based on a lateral battery replacement new energy vehicle, and belongs to the technical field of new energy vehicle batteries. Comprising a pop-up mechanism, the pop-up mechanism comprises a gas generator, the new energy vehicle is provided with a battery bin, one end of a bin frame of the battery bin is provided with a bin inlet and outlet, the other end of the bin frame is provided with a bin end cover, and the gas generator is arranged on the bin end cover. When the battery is inserted in place in the battery bin, a closed space can be formed between the inner end of the battery and the battery bin, and gas generated by combustion of a gas generating agent in the gas generator can act on the inner end of the battery to push the battery out of the battery bin. The gas generator is simple in structure and convenient to operate, when the battery is abnormal, the gas generator can instantly generate a large amount of gas, the battery can obtain enough kinetic energy, the battery is separated from the new energy vehicle, the risk that the battery explodes or burns on the new energy vehicle is eliminated, and therefore the personal and property safety of passengers is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery ejection device based on lateral battery replacement new energy vehicle belongs to new energy vehicle battery technical field. BACKGROUND

[0002] New energy vehicles are automobiles using accumulators as energy storage power sources, provide electric energy to electric motors through batteries to drive the electric motors to run, thereby propelling the automobile to travel, have advantages of zero emission and wide energy sources, are important means to alleviate the shortage of oil resources and the serious pollution of urban atmosphere, and are effective carriers to promote the change of traffic development mode and the work of energy saving and emission reduction.

[0003] There are many reasons for the spontaneous combustion of new energy vehicles, and six-tenths of new energy vehicle fire accidents are caused by thermal runaway of the battery itself, and the battery structure collapse, electrolyte leakage, internal short circuit and other problems caused by external factors such as vehicle jolt, extrusion, collision, fire and other external environment, thereby causing the vehicle to spontaneously combust. In order to cope with the above-mentioned abnormal conditions caused by the battery, such as the patent application with the name of a battery monitoring management system for electric vehicles and a monitoring method thereof with the application publication number CN105904992A, which discloses that the battery monitoring management system can monitor parameters such as temperature, smoke, gas and flame, can timely find the battery abnormality, and can issue a warning and start an execution device when the battery is abnormal. The battery monitoring management system can control the execution device to cool or extinguish the fire when it is abnormal, although certain execution measures are taken, but the execution effect is not good, the battery cannot be separated from the vehicle, and the vehicle still has potential danger, which is easy to cause damage to the personal safety of the passengers in the new energy vehicle. Therefore, when the battery is found to be abnormal, the battery monitoring management system can execute the battery to separate from the vehicle body, timely cut off the potential danger of the abnormal battery to the vehicle, and ensure the personal safety and property safety of the passengers. CONTENT OF THE UTILITY MODEL

[0004] The utility model provides a battery ejection device based on lateral battery replacement new energy vehicle in view of the deficiency of prior art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A battery ejection device based on a side-swappable new energy vehicle includes an ejection mechanism, the ejection mechanism includes a gas generator, the gas generator is provided with a gas hole, the new energy vehicle is provided with a battery compartment for installing the battery, the battery compartment includes a compartment frame and a compartment end cover, one end of the compartment frame is provided with an inlet / outlet for the battery to enter and exit laterally, the other end of the compartment frame is provided with the compartment end cover, the gas generator is disposed on the compartment end cover, when the battery is inserted into the battery compartment, its inner end can form a sealed space with the battery compartment, the gas generator in the gas generator burns and generates gas that can act on the inner end of the battery to push the battery out of the battery compartment.

[0006] The beneficial effects of this invention are as follows: The battery is inserted into the battery compartment through the inlet / outlet. After the battery is properly installed, a sealed space is formed between the inner end of the battery and the battery compartment. If an accident occurs in a new energy vehicle, leading to a risk of thermal runaway of the battery, the gas generator will receive a signal and be triggered upon detecting a battery abnormality. This triggers the gas generator, causing it to instantly produce a large amount of gas. The ejected gas creates an explosive force acting on the front end of the battery, providing sufficient kinetic energy to push the abnormal battery out of the battery compartment. This invention has a simple structure and is easy to operate. When a battery malfunctions, the gas generator can instantly produce a large amount of gas, providing sufficient kinetic energy for the battery to detach from the new energy vehicle, eliminating the risk of explosion or combustion of the battery in the vehicle, thereby ensuring the safety of passengers and their property.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, a side sealing ring is provided between the battery compartment and the inserted battery, and the side sealing ring is disposed on the inner side wall of the battery compartment.

[0009] The beneficial effect of adopting the above-mentioned further solution is that there is a side sealing ring between the outer periphery of the inserted battery and the battery compartment. The side sealing ring can further enhance the sealing effect of the sealed space between the inner end of the inserted battery and the battery compartment, ensuring that when the battery is abnormal, the gas generated by the gas generator can act on the inner end of the battery to push the battery out of the battery compartment.

[0010] Furthermore, an end sealing strip is provided between the battery compartment frame and the compartment end cover, and the end sealing strip is disposed on the battery compartment frame or the compartment end cover.

[0011] The beneficial effect of adopting the above-mentioned further solution is that an end sealing strip can be added between the end cover of the compartment and the battery compartment frame to further ensure the sealing effect of the sealed space formed after the battery is inserted into place, so as to ensure that the gas generated by the gas generator can act on the inner end of the battery.

[0012] Furthermore, the battery compartment also includes a sealing cap disposed on the compartment frame, the sealing cap being disposed on the outside of the enclosed space.

[0013] The beneficial effect of adopting the above-mentioned further solution is that by setting a sealing cover on the outside of the battery compartment near the gas generator, a small part of the battery compartment can be sealed, forming a sealed space required for the battery to be ejected. This can reduce the weight of the battery compartment and meet the requirements of forming the thrust for the battery to be ejected.

[0014] Furthermore, the outer end of the sealing cap extends to the inlet / outlet of the battery compartment.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the battery compartment can be partially sealed. Of course, in order to further ensure the sealing effect and increase the support strength of the battery compartment, it can also be completely sealed, with the sealing cover extending all the way to the inlet and outlet. Such a battery compartment can also meet the requirements of a sealed space, and at the same time, the strength of the inlet and outlet can also be strengthened to meet the requirements of the battery entering and leaving the battery compartment.

[0016] Furthermore, the battery compartment also includes a reinforcing cover disposed on the compartment frame, the reinforcing cover being disposed near the inlet / outlet, and a gap area being provided between the reinforcing cover and the sealing cover.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the battery swapping and battery ejection will frequently enter and exit the battery compartment. Adding a reinforced cover to the battery compartment at the entry and exit point can further increase the connection strength at the entry and exit point of the battery compartment and extend the service life of the battery compartment.

[0018] Furthermore, the battery or battery compartment is equipped with a monitoring sensor, which can collect signals and transmit them to the vehicle controller of the new energy vehicle. When the battery is found to be abnormal, the gas generator can receive a trigger signal.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the sensor can be one or more of a smoke concentration sensor, a gas concentration sensor, a temperature sensor, and a flame sensor. The vehicle controller can analyze and process the thermal runaway parameters based on the battery thermal runaway parameter signals transmitted by the received sensors, and determine whether the battery is abnormal. If the battery is determined to be abnormal, the gas generator is triggered by the sent electrical signal to ignite the gas generating agent in the gas generator, instantly releasing a large amount of gas. The gas is sprayed out of the vent into the sealed space and acts on the inner end of the battery. The large amount of gas in the sealed space forms an explosive force that can push the battery out of the battery compartment, thereby ensuring the safety of the vehicle and the people inside.

[0020] Furthermore, the battery is slidably inserted into the battery compartment, which is provided with a groove or rail for guiding the battery.

[0021] The advantages of adopting the above-mentioned further solutions are that the slide rail or guide rail can guide and limit the battery, ensuring the accuracy of the battery's position within the battery compartment. The battery's sliding insertion within the battery compartment reduces friction between the battery and the compartment, and also facilitates battery removal in case of malfunction.

[0022] Furthermore, the end cover is also provided with a vehicle-end electrical connector and a vehicle-end water connector. The inner end of the battery is provided with a battery-end electrical connector that can be inserted and mated with the vehicle-end electrical connector to supply power to the new energy vehicle, and a battery-end water connector that can be sealed and mated with the vehicle-end water connector to cool the battery.

[0023] The beneficial effects of adopting the above-mentioned further solutions are that after the battery is inserted into the battery compartment of the new energy vehicle, the battery's end electrical connector can be plugged into and cooperate with the vehicle's end electrical connector to meet the power supply needs of the new energy vehicle; the battery's end water connector can be sealed and connected with the vehicle's end water connector to meet the needs of the new energy vehicle's refrigerant connection for heat dissipation and cooling of the battery, thereby extending the battery's service life.

[0024] Furthermore, the battery compartment end cap is also equipped with an electromagnet, and the battery is equipped with a ferromagnetic structure that can be magnetically attracted to the electromagnet.

[0025] The beneficial effects of adopting the above-mentioned further solution are that the ferromagnetic structure can be steel plate, iron plate, etc. After the battery is inserted into the battery compartment through the inlet and outlet, the electromagnet is de-energized and magnetized. The electromagnet can use magnetic attraction to stably position the battery on the battery compartment, ensuring the stability of the battery in the battery compartment. When side swapping is required or the battery needs to be ejected due to abnormality, the electromagnet is energized and demagnetized, which can prepare for the battery to be ejected from the battery compartment. Attached Figure Description

[0026] Figure 1This is a schematic diagram of the structure of Embodiment 1 of this utility model from an angle;

[0027] Figure 2 This is a schematic diagram of the structure from angle two of Embodiment 1 of this utility model;

[0028] Figure 3 This is a schematic diagram of a partial cross-sectional structure along the transverse direction of the gas generator of this utility model;

[0029] Figure 4 This is a schematic diagram of the gas generator of this utility model;

[0030] Figure 5 This is a schematic diagram of a partial vertical cross-sectional structure of the gas generator according to this utility model;

[0031] Figure 6 for Figure 5 A magnified view of a section at point A in the middle;

[0032] Figure 7 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0033] In the diagram, 1. Battery compartment; 101. Compartment rack; 102. Compartment end cover; 103. Inlet / outlet; 104. Sealing cover; 105. Reinforced cover; 2. Battery; 3. Gas generator; 31. Vent; 4. Sealed space; 5. Side sealing ring; 6. End sealing strip; 7. Vehicle-end electrical connector; 8. Vehicle-end water connector; 9. Electromagnet. Detailed Implementation

[0034] 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.

[0035] Example 1, such as Figures 1-6 As shown, a battery ejection device for a side-swappable new energy vehicle includes an ejection mechanism. The ejection mechanism includes a gas generator 3 with an air hole 31. The new energy vehicle has a battery compartment 1 for installing a battery 2. The battery compartment 1 includes a compartment frame 101 and a compartment end cover 102. One end of the compartment frame 101 has an inlet / outlet port 103 for the battery 2 to enter and exit laterally, and the other end of the compartment frame 101 has the compartment end cover 102. The gas generator 3 is disposed on the compartment end cover 102. When the battery 2 is inserted into the battery compartment 1, its inner end can form a sealed space 4 with the battery compartment 1. The gas generator in the gas generator 3 burns to produce gas that acts on the inner end of the battery 2, pushing the battery 2 out of the battery compartment 1.

[0036] A side sealing ring 5 is provided between the battery compartment 1 and the inserted battery 2. The side sealing ring 5 is located on the inner wall of the battery compartment 1. Multiple side sealing rings 5 ​​can be provided between the outer periphery of the inserted battery 2 and the battery compartment 1. The side sealing ring 5 further enhances the sealing effect of the sealed space 4 between the inner end of the inserted battery 2 and the battery compartment 1, ensuring that in the event of a battery malfunction, the gas instantaneously generated by the gas generator 3 can act on the inner end of the battery 2 to push the battery 2 out of the battery compartment 1.

[0037] An end sealing strip 6 is provided between the battery compartment 1's frame 101 and the end cover 102. The end sealing strip 6 is disposed on the battery compartment 1's frame 101 or the end cover 102. An end sealing strip 6 can be added between the end cover 102 and the battery compartment 1's frame 101. The end sealing strip 6 can be set with multiple turns according to sealing requirements to further ensure the sealing effect of the sealed space 4 formed after the battery 2 is inserted, so as to ensure that the gas generated instantaneously by the gas generator 3 can act on the inner end of the battery 2.

[0038] The upper limit of the performance of a commonly used gas generator is that it can generate 200 kPa of pressure in a 160 L sealed space. When the sealed space of the battery compartment is 1250 mm long, 125 mm high, and 100 mm deep, its capacity is 12.5 L. Even if it generates 100 kPa of pressure, the pressure acting on the battery end face will reach 1250 kg, which is enough to generate huge kinetic energy to push the battery out of the battery compartment.

[0039] The battery compartment 1 also includes a sealing cover 104 disposed on the compartment frame 101, the sealing cover 104 being located on the outside of the sealed space 4. By placing the sealing cover 104 on the outside of the battery compartment 1 near the gas generator 3, a partial seal can be formed on the battery compartment 1, creating the sealed space 4 required for the battery 2 to eject. This reduces the weight of the battery compartment 1 while still meeting the requirement of creating the thrust for the battery 2 to eject. The left and right sides of the battery compartment 1 are sealable side panel structures, with the sealing cover 104 located on the upper and lower sides of the battery compartment to form the sealed space.

[0040] The outer end of the sealing cap 104 extends to the inlet / outlet 103 of the battery compartment 1. The battery compartment 1 can be partially sealed. Of course, to further ensure the sealing effect and increase the support strength of the battery compartment 1, it can also be completely sealed, with the sealing cap 104 extending all the way to the inlet / outlet 103. Such a battery compartment 1 can also meet the requirements of the sealed space 4, and at the same time, the strength of the inlet / outlet 103 can also be strengthened to meet the requirements of the battery 2 entering and exiting the battery compartment 1.

[0041] The battery 2 or battery compartment 1 is equipped with a monitoring sensor. The monitoring sensor can collect signals and transmit them to the vehicle controller of the new energy vehicle. When the monitoring determines that the battery 2 is abnormal, the gas generator 3 can receive a trigger electrical signal. The sensor can be one or more of a smoke concentration sensor, a gas concentration sensor, a temperature sensor, and a flame sensor. The vehicle controller can analyze and process the thermal runaway parameter signals of the battery 2 transmitted by the sensor and determine whether the battery 2 is abnormal. If the battery 2 is determined to be abnormal, the gas generator 3 is triggered by the transmitted electrical signal to ignite the gas generating agent in the gas generator 3 and release a large amount of gas instantly. The gas is sprayed into the sealed space 4 and acts on the inner end of the battery 2. The large amount of gas in the sealed space 4 forms an explosive force that can push the battery 2. The battery 2 can obtain enough kinetic energy to detach from the battery compartment, pushing the abnormal battery 2 out of the battery compartment 1, thereby ensuring the safety of the vehicle and the people in the vehicle.

[0042] The battery 2 is slidably inserted into the battery compartment 1, which is provided with a groove or rail for guiding the battery 2. The groove or rail can guide and limit the battery 2, ensuring the accuracy of the battery 2's position within the battery compartment 1. The ability of the battery 2 to slide inside the battery compartment 1 reduces friction between the battery 2 and the battery compartment 1, and facilitates the smooth removal of the battery 2 in case of malfunction.

[0043] The end cover 102 is also equipped with a vehicle-end electrical connector 7 and a vehicle-end water connector 8. The inner end of the battery 2 is equipped with a battery-end electrical connector that can be inserted and mated with the vehicle-end electrical connector 7 to supply power to the new energy vehicle, and a battery-end water connector that can be sealed and mated with the vehicle-end water connector 8 to cool the battery 2. After the battery 2 is inserted into the battery compartment 1 of the new energy vehicle, the battery-end electrical connector of the battery 2 can be inserted and mated with the vehicle-end electrical connector 7 to meet the power supply requirements of the new energy vehicle; the battery-end water connector of the battery 2 can be sealed and mated with the vehicle-end water connector 8 to meet the refrigerant connection requirements of the new energy vehicle to dissipate heat and cool the battery 2, thus extending the service life of the battery 2.

[0044] An electromagnet 9 is also provided on the end cover 102 of the battery compartment 1, and the battery 2 is provided with a ferromagnetic structure that can be magnetically attracted to the electromagnet 9. The ferromagnetic structure can be a steel plate, iron plate, etc. After the battery 2 is inserted into the battery compartment 1 through the inlet / outlet 103, the electromagnet 9 is de-energized and magnetized. The electromagnet 9 can stably position the battery 2 on the battery compartment 1 through magnetic attraction, ensuring the stability of the battery 2 in the battery compartment 1. When side-mounted battery replacement is required or the battery 2 needs to be ejected due to abnormality, the electromagnet 9 is energized and demagnetized, which can prepare for the battery 2 to be ejected from the battery compartment 1.

[0045] Battery compartment 1 is installed under the new energy vehicle. The new energy vehicle has a decorative door at the corresponding entry / exit port 103 of battery compartment 1. In the event of abnormal ejection of battery 2, the door can be forced open. To eliminate greater potential dangers to the new energy vehicle, damage to battery 2 and the door is permissible. Gas generator 3 can instantly generate a large amount of gas within the sealed space 4, providing the battery with sufficient kinetic energy. Once pushed, battery 2 can leave battery compartment 1 by inertia.

[0046] Example 2, as Figure 7 As shown, the battery compartment 1 also includes a reinforcing cover 105 disposed on the compartment frame 101. The reinforcing cover 105 is located near the inlet / outlet 103, and a gap area is provided between the reinforcing cover 105 and the sealing cover 104. Since the battery 2 frequently enters and exits the inlet / outlet 103 of the battery compartment 1 during battery swapping and ejection, adding a reinforcing cover 105 to the battery compartment 1 at the inlet / outlet 103 can further increase the connection strength at the inlet / outlet 103 of the battery compartment 1, extend the service life of the battery compartment 1, and at the same time, the gap area also reduces the overall weight of the battery compartment 1.

[0047] In embodiment 3, the battery compartment 1 further includes a sealing cover 104 disposed on the compartment frame 101, the sealing cover 104 being located on the outside of the sealed space 4. By placing the sealing cover 104 on the outside of the battery compartment 1 near the gas generator 3, a partial seal can be formed in the battery compartment 1, creating the sealed space 4 required for the battery 2 to eject. This reduces the weight of the battery compartment 1 while still meeting the requirement of creating the thrust for the battery 2 to eject. The gas generator 3 can instantly generate a large amount of gas within the sealed space 4, providing the battery with sufficient kinetic energy. The partial seal of the battery compartment 1 also meets the requirement of the explosive force needed to propel the battery 2. Once propelled, the battery 2 can leave the battery compartment 1 by inertia.

[0048] The battery 2 of this invention can be inserted into the battery compartment 1 of a new energy vehicle through the inlet / outlet 103. When a battery swap is needed, the battery 2 to be swapped can be removed from the battery compartment 1, and then the fully charged battery 2 can be inserted into the battery compartment 1 to achieve lateral battery swapping for the new energy vehicle. After the battery 2 is inserted, there is a side sealing ring 5 between the battery 2 and the interior of the battery compartment 1. There is an end sealing strip 6 between the compartment frame 101 and the end cover 102 of the battery compartment 1. There is a sealing end cover on the outside of the compartment frame 101. A sealed space 4 can be formed between the inner end of the battery 2 and the compartment of the battery compartment 1. When the new energy vehicle is involved in an accident that causes the battery 2 to have a risk of thermal runaway, the vehicle controller receives a signal from the monitoring sensor and will make a judgment. If the received signal value exceeds a preset threshold, the battery 2 is judged to be abnormal. The vehicle controller can issue a risk warning, press the control button, the electromagnet 9 is energized and demagnetized, the electromagnet 9 no longer attracts the battery 2, and the gas generator is triggered. Alternatively, if the battery abnormality is detected, the vehicle controller can directly control the electromagnet 9 to be energized and demagnetized, and control the gas generator to be triggered. The gas generating agent in the gas generator 3 that can burn to produce a large amount of gas instantly produces a large amount of gas, such as nitrogen. The gas is ejected and forms an explosive force acting on the inner end of the battery 2. The battery 2 can obtain enough kinetic energy to detach from the battery compartment 1 of the new energy vehicle, eliminating the risk of the battery 2 exploding or burning in the new energy vehicle, thereby ensuring the safety of the passengers and their property.

[0049] 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 side-swappable new energy vehicle, characterized in that, The device includes a pop-out mechanism, which includes a gas generator (3) with a gas hole (31). The new energy vehicle has a battery compartment (1) for installing a battery (2). The battery compartment (1) includes a compartment frame (101) and a compartment end cover (102). One end of the compartment frame (101) is provided with an inlet / outlet port (103) for the battery (2) to enter and exit laterally. The other end of the compartment frame (101) is provided with the compartment end cover (102). The gas generator (3) is installed on the compartment end cover (102). When the battery (2) is inserted into the battery compartment (1), its inner end can form a sealed space (4) with the battery compartment (1). The gas generated by the combustion of the gas generator (3) can act on the inner end of the battery (2) to push the battery (2) out of the battery compartment (1).

2. The battery ejection device for a side-swappable new energy vehicle according to claim 1, characterized in that, A side sealing ring (5) is provided between the battery compartment (1) and the inserted battery (2), and the side sealing ring (5) is provided on the inner side wall of the battery compartment (1).

3. The battery ejection device for a side-swappable new energy vehicle according to claim 1 or 2, characterized in that, An end sealing strip (6) is provided between the battery compartment (1) frame (101) and the compartment end cover (102), and the end sealing strip (6) is provided on the battery compartment (1) frame (101) or the compartment end cover (102).

4. The battery ejection device for a side-swappable new energy vehicle according to claim 1 or 2, characterized in that, The battery compartment (1) also includes a sealing cap (104) disposed on the compartment frame (101), the sealing cap (104) being disposed on the outside of the enclosed space (4).

5. The battery ejection device for a side-swappable new energy vehicle according to claim 4, characterized in that, The outer end of the sealing cap (104) extends to the inlet / outlet (103) of the battery compartment (1).

6. The battery ejection device for a side-swappable new energy vehicle according to claim 4, characterized in that, The battery compartment (1) also includes a reinforcing cover (105) disposed on the compartment frame (101). The reinforcing cover (105) is disposed near the inlet / outlet (103), and a gap area is provided between the reinforcing cover (105) and the sealing cover (104).

7. The battery ejection device for a side-swappable new energy vehicle according to claim 1 or 2, characterized in that, The battery (2) or battery compartment (1) is equipped with a monitoring sensor. The monitoring sensor can collect signals and transmit them to the vehicle controller of the new energy vehicle. When the battery (2) is found to be abnormal, the gas generator (3) can receive a trigger signal.

8. The battery ejection device for a side-swappable new energy vehicle according to claim 1 or 2, characterized in that, The battery (2) is slidably inserted into the battery compartment (1), and the battery compartment (1) is provided with a groove or rail for guiding the battery (2).

9. The battery ejection device for a side-swappable new energy vehicle according to claim 1 or 2, characterized in that, The end cover (102) is also provided with a vehicle-end electrical connector (7) and a vehicle-end water connector (8). The inner end of the battery (2) is provided with a battery-end electrical connector that can be inserted and cooperated with the vehicle-end electrical connector (7) to supply power to the new energy vehicle and a battery-end water connector that can be sealed and connected with the vehicle-end water connector (8) to cool down the battery (2).

10. The battery ejection device for a side-swappable new energy vehicle according to claim 1 or 2, characterized in that, The battery compartment (1) is provided with an electromagnet (9) on its end cap (102), and the battery (2) is provided with a ferromagnetic structure that can be magnetically attracted to the electromagnet (9).

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