CN112224040A

CN112224040A - Battery separation device of electric automobile and electric automobile

Info

Publication number: CN112224040A
Application number: CN202011211185.2A
Authority: CN
Inventors: 邢扬
Original assignee: Quarkdata Software Co ltd
Current assignee: Quarkdata Software Co ltd; ThunderSoft Co Ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-01-15

Abstract

The invention discloses an electric automobile battery separation device and an electric automobile. An electric vehicle battery separator, the battery separator comprising: the device comprises a battery compartment sensor, a slide rail, a servo actuator and a controller; the battery compartment sensor and the servo actuator are connected with the controller; the battery compartment sensor is used for measuring the battery temperature of the electric automobile; the sliding rails are arranged along a preset direction and used for assembling the batteries in a sliding mode; the controller is used for triggering the servo actuator according to the induction of the battery compartment sensor, so that the servo actuator ejects the battery from the preset direction along the sliding rail. This application can in time pop out the battery when the battery meets accident, reduces the battery and fires, explodes the safety risk that causes for personnel in the car.

Description

Battery separation device of electric automobile and electric automobile

Technical Field

The invention relates to the technical field of electric automobiles, in particular to an electric automobile battery separation device and an electric automobile.

Background

With the development of environment-friendly electric vehicles, how to balance the cruising demand of vehicles and the safety of passengers is called a topic concerned by vehicle factories and buyers. Some electric vehicle manufacturers initially use ternary lithium batteries with high power density for better cruising performance, but select a more reliable lithium iron phosphate battery route after experiencing multiple serious fire accidents. At present, although manufacturers claim to manufacture a ternary lithium battery which can pass a needling experiment, actual experimental results still cause severe explosion.

Therefore, it is very important how to improve the safety performance of the battery of the electric vehicle by means other than battery development.

Disclosure of Invention

In view of the safety problems of battery explosion, fire and the like of the electric automobile in the prior art, the invention provides a battery separating device of the electric automobile and the electric automobile so as to overcome the problems.

In order to achieve the purpose, the invention adopts the following technical scheme:

according to an aspect of the present application, there is provided a battery separating apparatus for an electric vehicle, the battery separating apparatus including: the device comprises a battery compartment sensor, a slide rail, a servo actuator and a controller; the battery compartment sensor and the servo actuator are connected with the controller;

the battery compartment sensor is used for measuring the battery temperature of the electric automobile;

the sliding rails are arranged along a preset direction and used for assembling the batteries in a sliding mode;

the controller is used for triggering the servo actuator according to the induction of the battery compartment sensor, so that the servo actuator ejects the battery from the preset direction along the sliding rail.

Optionally, the battery comprises two groups arranged side by side; two groups of batteries are ejected out from the same side of the electric automobile, two batteries in the same row share the same servo actuator, or two servo actuators which are arranged in a staggered mode are respectively used; or two groups of batteries are respectively ejected from two sides of the electric automobile, and each battery independently uses one servo actuator.

Optionally, the servo actuator is one of the following types: oil pressure actuators, compressed air actuators, electric actuators, and chemical energy actuators.

Alternatively, the servo actuator is disposed below the battery, with one end fixed to the floor of the electric vehicle and the other end contacting the bottom of the battery.

Optionally, the battery separating device further comprises: the automatic cabin door is connected with the controller and is arranged corresponding to the battery ejection direction;

when the electric automobile is a left steering engine, the automatic cabin door is arranged on the left side of the electric automobile, and when the electric automobile is a right steering engine, the automatic cabin door is arranged on the right side of the electric automobile; the controller triggers the automatic hatch to open before triggering the servo actuator to eject the battery, providing an ejection outlet for the battery.

Optionally, a thermal insulation layer is arranged outside the battery and isolates the battery from the servo actuator; when the battery is provided in plurality, the heat insulating layer also isolates the batteries from each other.

Optionally, the battery separating device further comprises: and the cutting device is connected with the controller and is used for cutting off the cable between the battery and the electric automobile when the battery is ejected.

Optionally, the battery separating device further comprises: the sensor inside the vehicle and the sensor outside the vehicle are connected with the controller; the vehicle-interior sensor is used for detecting the condition of people in the vehicle, and the vehicle-exterior sensor is used for detecting the condition of space outside the vehicle; the controller is also used for controlling the servo actuator to eject the battery according to the induction of the in-vehicle sensor and the out-vehicle sensor.

Optionally, the battery separating device further comprises: an alert device and/or a communication device;

the warning device is used for sending a warning message when the battery pops up so as to enable an external pedestrian vehicle to keep away from the electric automobile; the communication device is used for communicating with other vehicles and informing the other vehicles of avoiding so as to safely eject the battery.

According to another aspect of the application, an electric automobile is provided, and the electric automobile is provided with the electric automobile battery separation device.

To sum up, the beneficial effect of this application is:

the battery separating device is provided with a battery compartment sensor for measuring the temperature of the battery, and the controller can trigger the servo actuator through detection of the temperature of the battery, and ejects the battery from the preset direction along the sliding rail, so that the battery can be ejected out in time when the battery is in an accident, and the safety risk of personnel in the vehicle caused by fire and explosion of the battery is reduced.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a battery separation device for an electric vehicle according to the present application;

fig. 2 is a bottom view of a battery compartment of the battery separating device of the electric vehicle, wherein the right side of the battery compartment is in the direction of a vehicle head, and the battery is not popped up;

FIG. 3 is a bottom view of a battery compartment of the battery separating device of the electric vehicle, wherein the right side of the battery compartment is in the direction of a vehicle head, and a battery is popped up;

FIG. 4 is a schematic diagram illustrating the positional relationship among a battery, a slide rail and a servo actuator of the battery separator of an electric vehicle according to the present application;

FIG. 5 is a schematic view of the slide rail shown in FIG. 4 with a portion of the slide rail hidden;

in the figure: the system comprises a battery 1, a servo actuator 2, an automatic cabin door 3, a battery cabin sensor 4, an in-vehicle sensor 5, an out-vehicle sensor 6 and a slide rail 7.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The technical conception of the invention is as follows: set up battery separator on electric automobile, realize popping out in time of battery to avoid the battery to catch fire, the safety risk that the explosion brought.

Fig. 1 to 5 show an embodiment of a battery separator for an electric vehicle according to the present application, in which: FIG. 1 is a schematic structural diagram of an embodiment of a battery separation device for an electric vehicle according to the present application; fig. 2 is a bottom view of a battery compartment of the battery separating device of the electric vehicle, wherein the right side of the battery compartment is in the direction of a vehicle head, and the battery in fig. 2 is not popped up; fig. 3 is a bottom view of a battery compartment of the battery separating device of the electric vehicle, wherein the right side of the battery compartment is in the direction of a vehicle head, and the battery in fig. 3 is popped up; FIG. 4 is a schematic diagram illustrating the positional relationship among the battery, the slide rail and the servo actuator of the battery separation device of the electric vehicle according to the present application; fig. 5 is a schematic view of the slide rail shown in fig. 4 with a portion of the slide rail hidden.

As shown in fig. 1 to 5, the battery separating apparatus for an electric vehicle according to the present application includes: battery compartment sensors 4, slide rails 7, servo actuators 2 and controllers. The controller is being connected to battery compartment sensor 4 and servo actuator 2, and battery compartment sensor 4 measures electric automobile's battery temperature to transmit sensing signal to the controller, the controller then triggers servo actuator 2 according to this sensing signal, thereby in time pops out battery 1 when battery 1 meets accident, reduces battery 1 and fires, explodes the safety risk that causes for personnel in the car.

In this embodiment, the battery 1 is slidably assembled on the slide rail 7, and the slide rail 7 is disposed along a predetermined direction, so that if the battery compartment sensor 4 detects that the battery 1 is in an abnormal state, for example, the temperature is too high and exceeds a predetermined safe temperature, the controller will trigger the servo actuator 2, so that the servo actuator ejects the battery 1 along the slide rail 7 from the predetermined direction.

The slide rail 7 can facilitate the installation of the battery 1, quickly adjust the position of the battery 1, reduce the ejection resistance of the battery 1, and provide a guide function to eject the battery 1 from a predetermined direction and trajectory. Referring to fig. 2 and 3, fig. 2 and 3 are bottom views of the battery compartment, the right side is in the direction of the vehicle head, and the lower side is in the direction of the automatic compartment door 3. The servo actuator 2 is a hydraulic actuator cylinder, drives a connecting rod through hydraulic pressure, jacks the automatic cabin door 3, and simultaneously ejects the battery 1 out of the vehicle along the sliding rail 7. As shown in fig. 3, when the cylinder link is operated to the maximum stroke, it is separated from the battery 1.

Therefore, through the battery separating device for the electric automobile of the embodiment of the application, when the temperature of the battery 1 is detected to be too high, the battery 1 can be smoothly and timely slid out of the electric automobile through the servo actuator 2 and the slide rail 7, and the safety of people in the automobile is protected.

In the present embodiment, the battery compartment sensors 4 may be a thermocouple, an infrared sensor, and an ultraviolet sensor, but are not limited thereto, and each battery 1 should be provided with an independent battery compartment sensor 4 to individually treat each battery 1 to avoid mutual influence between the batteries 1.

In the present embodiment, the battery 1 includes two left and right groups arranged side by side. The two groups of left and right batteries 1 arranged side by side in the present application refer to two groups of left and right arranged side by side along the vehicle head-vehicle body direction. For example, an electric vehicle such as a bus needs to adopt a plurality of batteries due to power requirements, and in this case, the battery is divided into two rows in the present embodiment, so that the battery ejection is controlled conveniently.

In an embodiment of the present application, two sets of batteries 1 can be popped out from the same side of the electric vehicle, and at this time, two batteries 1 in the same row share the same servo actuator 2, so that the number of the servo actuators 2 can be saved, and the cost can be controlled.

Or, under the condition that two sets of batteries 1 pop out from the same side of the electric automobile, two batteries 1 in the same row respectively use two servo actuators 2 to pop out independently to guarantee that each battery is independent, and each servo actuator 2 drives one battery, and the safety is higher. At this time, as shown in fig. 2 and 3, the servo actuators 2 need to be arranged in a staggered manner so as to be away from each other.

In another embodiment of the present application, the two sets of batteries 1 may also be ejected from two sides of the electric vehicle, respectively, that is, the battery 1 on the left side is ejected from the left side, and the battery 1 on the right side is ejected from the right side. At this time, one servo actuator 2 is independently used for each battery 1.

In one embodiment of the present application, the servo actuator 2 may be of any one of the following types: oil pressure actuators, compressed air actuators, electric actuators, and chemical energy actuators. Of course, other forms of servo actuators 2 are also applicable to the present application and will not be described in any greater detail herein.

Preferably, the servo actuator 2 should have reliable safety performance to ensure that the battery compartment can still reliably work when the battery compartment is deformed due to collision and the like, so as to protect the people in the vehicle. Therefore, in the preferred embodiment of the application, the oil pressure actuator is selected as the servo actuator 2, and because the vehicle body is likely to deform after the vehicle accident happens, the oil pressure actuator can be more suitable for the deformation condition of the vehicle, the battery 1 is more likely to be ejected out of the vehicle, and the reliability is higher.

In one embodiment of the present application, and referring to fig. 4 and 5 of the present application, the servo actuator 2 is disposed under the battery 1, with one end fixed to the floor of the electric vehicle and the other end in contact with the bottom of the battery 1. Because the temperature below the battery 1 is lower after the fire occurs, the servo actuator 2 is arranged below the battery 1, the probability of damage to the servo actuator 2 is lower, and the reliability is higher.

Taking this embodiment as an example, the servo actuator 2 is a hydraulic actuator cylinder, the fixed part of the cylinder body is connected to the bottom plate of the electric vehicle, the telescopic movable end of the cylinder body contacts with the bottom of the battery 1, the battery 1 is ejected through the telescopic movable end, and the telescopic movable end can be separated from the battery 1 after ejection.

In this embodiment, as shown in fig. 1, the battery separating apparatus further includes: the automatic cabin door 3, the automatic cabin door 3 is also connected with the controller. The automatic cabin door 3 is arranged corresponding to the ejecting direction of the battery 1 and is closed to protect the battery 1 and the internal structure of the vehicle at ordinary times, and the controller can also control the automatic cabin door 3 to be opened before controlling the servo actuator 2 to eject the battery 1, so that an ejection outlet is provided for the battery 1.

Preferably, when the electric vehicle is a left-hand steering vehicle, the automatic cabin door 3 is opened at the left side of the electric vehicle, so that the battery 1 is ejected from the left side of the vehicle, thereby not affecting the escape of passengers from the right side door. When the electric automobile is a right steering vehicle, the automatic cabin door 3 is arranged on the right side of the electric automobile, so that the battery 1 is popped out from the right side of the automobile, and passengers can escape from the right side of the automobile without being influenced.

The automatic hatch 3 may be automatically opened by a motor drive, or the automatic hatch 3 may be exploded by an explosion device similar to an airbag, which is not limited in this application. Moreover, the automatic cabin door can also be opened by directly pushing the battery 1 when the servo actuator 2 pushes the battery 1, and the automatic cabin door 3 in the case is closed in a lower strength mode.

In one embodiment of the present application, a thermal insulation layer may be disposed outside the battery 1, and the battery 1 and the servo actuator 2 are isolated by the thermal insulation layer; in the present embodiment, a plurality of batteries 1 are provided, and the heat insulating layer can also insulate the batteries 1 from each other, so that the adverse effects between the batteries 1 and the servo actuators 2 and between the batteries 1 and the batteries 1 can be avoided.

In one embodiment of the present application, the battery separating apparatus further includes: and the cutting device is connected with the controller and is used for cutting off the cable between the battery 1 and the electric automobile when the battery 1 is ejected, so that the ejection of the battery 1 is prevented from being influenced by the cable.

Of course, the battery 1 may be ejected without a cable. For example, directly set up slide rail 7 as electrically conductive slide rail, contain electrically conductive metal track, metal track can support battery 1 and can switch on with battery 1 contact again, and battery 1 installation is advanced slide rail 7 back and is contacted with metal track promptly, realizes connecting the power supply. Therefore, when the battery 1 is popped up, the battery 1 is separated from the metal track, namely, the power failure is automatically realized, so that the battery 1 is convenient to install and use, the battery 1 can be prevented from being dragged by wires, and the purpose of killing two birds with one stone is achieved.

In this embodiment, as shown in fig. 1, the battery separating apparatus further includes: an in-vehicle sensor 5 and an out-vehicle sensor 6.

The in-vehicle sensor 5 includes, but is not limited to, a camera, an infrared sensor, and the like, and is specifically configured to detect the number of passengers in the vehicle, and may further include information such as the position and the opening state of a door; the vehicle exterior sensor 6 is specifically used for detecting whether the vehicle exterior environment is suitable for ejecting the battery 1, and includes but is not limited to a camera, an infrared sensor, a laser radar, a millimeter wave radar, an ultrasonic sonar and the like. The controller is also used to control the servo actuator 2 to eject the battery 1 based on the sensing of the in-vehicle and out-of-vehicle sensors. By providing the in-vehicle sensor 5 and the out-vehicle sensor 6, the conditions inside and outside the vehicle can be obtained, and the timing of ejecting the battery can be controlled. For example, whether a person is in the vehicle or not is obtained to determine whether the battery needs to be ejected or not, and whether the person is in a dangerous place such as an open area, a downtown area, a gas station or the like is determined to protect the safety of the space outside the vehicle.

Therefore, the battery separating device of the electric automobile of the embodiment can eject the battery 1 out of the automobile under the condition that the condition allows by comprehensively utilizing the induction of the battery compartment sensor 4, the in-automobile sensor 5 and the out-automobile sensor 6, thereby not only protecting the safety of people in the automobile, but also not influencing the safety of the environment outside the automobile.

In this embodiment, the number of the in-vehicle sensor 5 and the number of the out-vehicle sensor 6 are not limited to one, and a plurality of sensors may be provided according to the requirement of data collection. For example, the external sensor 6 may be a panoramic lens installed on the roof of the vehicle, or a plurality of sensors may be used to collect the spatial conditions around the vehicle.

In one embodiment of the present application, the battery separating apparatus further includes: an alert device and/or a communication device. The warning device can be a warning lamp or a loudspeaker and is used for sending a warning message through light or sound when the battery 1 is popped up so that an external pedestrian vehicle can be kept away from the electric automobile, and therefore the external pedestrian vehicle can be kept away from the popped-up battery 1. The communication device can be connected with other vehicles through a network and is used for communicating with other vehicles and informing the other vehicles of avoiding so as to safely eject the battery 1.

In one embodiment of the application, data bus modules are used for communication among modules of the battery separating device of the electric automobile so as to keep smooth information transmission.

Preferably, in this embodiment, a relatively hard housing may be further disposed on the outer side of the battery 1 to limit the power of the battery 1 in fire and explosion, and reduce damage.

The electric automobile battery separator of this application is applicable to various electric automobile, including but not limited to all kinds of electric automobile that use lithium iron phosphate battery and terpolymer lithium cell, no matter the security of battery itself is high low, uses the electric automobile battery separator of this application, all can effectively improve electric automobile's security performance, reduces the harm that the battery high temperature trouble brought.

Referring to fig. 1 to 5, a possible operation principle of the battery separating device of the electric vehicle of the present application is described as follows:

1. the battery compartment sensor 4 sends the temperature of the battery 1 to the controller through the data bus module, and the controller judges whether to eject the battery 1 according to the temperature of the battery 1. If the battery 1 needs to be popped up, the controller also checks the number of people in the vehicle through the vehicle sensor 5, and if no people are in the vehicle, or the number of people in the vehicle is small (for example, only a driver), or the number of people in the vehicle is less than a first threshold value and the vehicle door is opened, the battery 1 does not need to be popped up. Of course, the strategy for controlling whether the battery 1 is ejected or not can be determined according to practical situations and use experience, and the application is not limited to one.

2. In addition, in the case where the vehicle exterior sensor 6 is present, the controller then calls the vehicle exterior sensor 6 to check the vehicle exterior condition, and if the vehicle exterior space is too narrow and the vehicle is in motion, the battery 1 is not ejected for the moment, and after a second delay time, it is checked again whether it is appropriate to eject the battery 1. Of course, other specific strategies for ejecting the battery 1 may be provided, for example, if the person outside the vehicle is dense and even more than the person inside the vehicle, the person may be warned to disperse the crowd and then wait for the second delay time before checking whether it is appropriate to eject the battery 1 again. If other large buses exist outside the vehicle, other vehicles can be informed of avoiding through the internet of vehicles, and whether the ejection of the battery 1 is suitable or not is checked after waiting for the second delay time.

3. After the final decision that ejection of the battery 1 is required, the controller unlocks the automatic hatch 3, thereby providing an exit for ejection of the battery 1.

4. If the cut-off device is present, the controller cuts off the cable between the battery 1 and the vehicle by the cut-off device.

5. Finally, in the case where it is finally determined that the battery needs to be ejected and the vehicle exterior condition allows the battery 1 to be ejected, the controller controls the servo actuator 2 to eject the battery 1 outside the vehicle.

The strategies in the above steps may be set and adjusted according to the requirements and road conditions, and are not the only limitations of the present application.

The application also discloses an electric automobile, and this electric automobile is provided with as above arbitrary electric automobile battery separator to can pop out battery 1 when battery 1 breaks down at suitable opportunity, the inside and outside personnel property safety of protection car.

While the foregoing is directed to embodiments of the present invention, other modifications and variations of the present invention may be devised by those skilled in the art in light of the above teachings. It should be understood by those skilled in the art that the foregoing detailed description is for the purpose of better explaining the present invention, and the scope of the present invention should be determined by the scope of the appended claims.

Claims

1. An electric vehicle battery separator, characterized in that, this battery separator includes: the device comprises a battery compartment sensor, a slide rail, a servo actuator and a controller; the battery compartment sensor and the servo actuator are connected with the controller;

the sliding rails are arranged along a preset direction and used for assembling the battery in a sliding mode;

the controller is used for triggering the servo actuator according to the induction of the battery compartment sensor, so that the servo actuator ejects the battery from a preset direction along the sliding rail.

2. The battery separator according to claim 1, wherein the batteries comprise two groups arranged side by side; the two groups of batteries are ejected out from the same side of the electric automobile, and two batteries in the same row share the same servo actuator, or two servo actuators which are arranged in a staggered mode are respectively used; or two groups of batteries are respectively ejected from two sides of the electric automobile, and each battery independently uses one servo actuator.

3. The battery separator device of claim 1, wherein the servo actuator is one of the following types: oil pressure actuators, compressed air actuators, electric actuators, and chemical energy actuators.

4. The battery separation apparatus of claim 1, wherein the servo actuator is disposed under the battery, and has one end fixed to a bottom plate of the electric vehicle and the other end contacting a bottom of the battery.

5. The battery separator of claim 1, further comprising: the automatic cabin door is connected with the controller and is arranged corresponding to the battery popping direction;

when the electric automobile is a left steering engine, the automatic cabin door is arranged on the left side of the electric automobile, and when the electric automobile is a right steering engine, the automatic cabin door is arranged on the right side of the electric automobile; the controller triggers the automatic cabin door to open before triggering the servo actuator to eject the battery, and an ejection outlet is provided for the battery.

6. The battery separator device of claim 1, wherein a thermal insulation layer is disposed outside the battery, and the thermal insulation layer isolates the battery from the servo actuator; when the battery is provided in plurality, the thermal insulating layer also isolates the batteries from each other.

7. The battery separator of claim 1, further comprising: and the cutting device is connected with the controller and is used for cutting off a cable between the battery and the electric automobile when the battery is ejected.

8. The battery separator of claim 1, further comprising: the sensor inside the vehicle and the sensor outside the vehicle are connected with the controller; the vehicle-mounted sensor is used for detecting the condition of people inside the vehicle, and the vehicle-mounted sensor is used for detecting the condition of space outside the vehicle; the controller is also used for controlling the servo actuator to eject the battery according to the induction of the in-vehicle sensor and the out-vehicle sensor.

9. The battery separator of claim 1, further comprising: an alert device and/or a communication device;

the warning device is used for sending a warning message when the battery pops up so that an external pedestrian vehicle can be kept away from the electric automobile; the communication device is used for communicating with other vehicles and informing the other vehicles of avoiding so as to safely eject the battery.

10. An electric vehicle, characterized in that the electric vehicle is provided with an electric vehicle battery separator device according to any of claims 1-9.