CN220884278U - Emergency discharging device and electric automobile - Google Patents
Emergency discharging device and electric automobile Download PDFInfo
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- CN220884278U CN220884278U CN202322480124.1U CN202322480124U CN220884278U CN 220884278 U CN220884278 U CN 220884278U CN 202322480124 U CN202322480124 U CN 202322480124U CN 220884278 U CN220884278 U CN 220884278U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides an emergency discharging device and an electric automobile, which are arranged in a vehicle body, wherein the emergency discharging device comprises: a key unit; the control unit is in communication connection with the key unit; the first battery unit is respectively and electrically connected with the control unit and the motor unit of the vehicle body, the control unit is provided with a preset voltage threshold value and is configured to respond to the signal of the key unit, and the control unit can control the connection and disconnection of the first battery unit and the motor unit according to the voltage threshold value; the control unit can identify the states of the vehicle body and the first battery unit, if the vehicle body is faulty, the first battery unit is fault-free, and the voltage of the first battery unit is greater than or equal to a voltage threshold, and the control unit can control the first battery unit to be communicated with the motor unit so that the first battery unit supplies power to the motor unit. By applying the technical scheme of the utility model, the technical problem that the vehicle cannot be started in an emergency in the related technology can be solved.
Description
Technical Field
The utility model relates to the technical field of emergency power supplies, in particular to an emergency discharging device and an electric automobile.
Background
With the development of social technology, electric vehicles are widely used in people's life.
In the related art, however, if the voltage of the battery is too low during normal operation of the vehicle, a low battery warning is triggered while limiting the vehicle discharge power so that the vehicle speed is reduced, and when the battery triggers a severe under-voltage warning, the vehicle control system directly limits the movement of the vehicle.
The processing mode can cause that the vehicle cannot be started in an emergency in the running process, so that the vehicle can be suddenly anchored or slide down, and then traffic jam or traffic accident can be caused, and the safety of a user is influenced.
Disclosure of utility model
The embodiment of the utility model provides an emergency discharging device and an electric automobile, which can solve the technical problem that the automobile cannot be started in an emergency in the related art.
In a first aspect, an embodiment of the present utility model provides an emergency discharge device provided in a vehicle body, the emergency discharge device including: a key unit configured to generate a signal in response to a touch of a user; the control unit is in communication connection with the key unit; the first battery unit is respectively and electrically connected with the control unit and the motor unit of the vehicle body, the control unit is provided with a preset voltage threshold value and is configured to respond to the signal of the key unit, and the control unit can control the connection and disconnection of the first battery unit and the motor unit according to the voltage threshold value; the control unit can identify the states of the vehicle body and the first battery unit, if the vehicle body is faulty, the first battery unit is fault-free, and the voltage of the first battery unit is greater than or equal to a voltage threshold, and the control unit can control the first battery unit to be communicated with the motor unit so that the first battery unit supplies power to the motor unit.
In an embodiment, the control unit comprises: the vehicle management module is electrically connected with the key unit and is provided with a preset voltage threshold; the circuit control module is electrically connected with the vehicle management module, and is arranged between the connection circuit of the first battery unit and the motor unit, and when the voltage of the first battery unit is smaller than the voltage threshold value, the vehicle management module controls the circuit control module to disconnect the connection condition of the first battery unit and the motor unit.
In one embodiment, a vehicle management module includes: the whole vehicle controller is electrically connected with the key unit; and the battery manager is respectively and electrically connected with the key unit, the whole vehicle controller and the line control module, and can receive signals of the whole vehicle controller to control the state of the line control module.
In one embodiment, the voltage threshold is specifically 2V.
In an embodiment, the emergency discharging device further comprises a second battery unit electrically connected to the first battery unit, and the second battery unit is capable of charging the first battery unit when the voltage of the first battery unit is lower than the voltage threshold.
In one embodiment, the emergency discharging device further includes a converter module disposed between the first battery cell and the second battery cell, the converter module being electrically connected to a battery manager, the battery manager controlling a charging direction between the first battery cell and the second battery cell through the converter module.
In an embodiment, the emergency discharging device further comprises a third battery unit, the third battery unit is respectively electrically connected with the line control module and the motor unit, and the battery manager can respectively control the connection and disconnection of the first battery unit and the second battery unit with the motor unit.
In an embodiment, the first battery unit further has a preset first discharge power and a preset second discharge power, and when the key unit is switched from the initial state to the trigger state, the control unit can identify the vehicle information, so that the first battery unit is at the first discharge power or the second discharge power.
In an embodiment, the emergency discharging device further comprises a display screen, the display screen is electrically connected with the control unit, and the key unit is arranged on a steering wheel in the vehicle body or on the display screen.
In a second aspect, embodiments of the present utility model provide an electric vehicle comprising an emergency discharge device according to any one of the above.
By applying the technical scheme of the utility model, the key unit is arranged in the vehicle body, and can send signals to the control unit through the key unit, when the vehicle is in an emergency state, the key unit can be switched from an initial state to a trigger state by a user, at the moment, after receiving the signals of the key unit, the control unit can identify and judge the working states of the vehicle body and the first battery unit, and if the vehicle body has a fault at the moment, the first battery unit can continue to work to supply power to the motor unit when the first battery unit has no fault and the voltage is greater than or equal to the voltage threshold value, so that the vehicle can continue to move, the situation that the vehicle breaks down or slips down due to sudden power failure is prevented, the occurrence of angina accidents caused by the sudden fault of the vehicle can be prevented, and the personal safety of the user can be protected.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic block diagram of an emergency discharging apparatus according to a first embodiment of the present utility model;
Fig. 2 is a schematic block diagram of an emergency discharging apparatus according to a first embodiment of the present utility model;
Fig. 3 is a schematic block diagram of an emergency discharging apparatus according to a second embodiment of the present utility model;
Fig. 4 is a schematic block diagram of an emergency discharging apparatus according to a third embodiment of the present utility model.
Wherein the above figures include the following reference numerals:
10. A key unit;
211. A vehicle controller; 212. a battery manager; 22. a line control module;
30. A first battery cell;
40. A motor unit;
50. a second battery cell;
60. A converter module;
70. A third battery cell;
80. And a display screen.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
As shown in fig. 1 and 2, a first embodiment of the present utility model provides an emergency discharging device provided in a vehicle body, the emergency discharging device including a key unit 10, a control unit, and a first battery unit 30. Wherein the key unit 10 is configured to generate a signal in response to a touch of a user, and the control unit is communicatively connected with the key unit 10; the first battery unit 30 is electrically connected with the control unit and the motor unit 40 of the vehicle body respectively, the control unit has a preset voltage threshold value and is configured to respond to the signal of the key unit 10, and the control unit can control the communication between the first battery unit 30 and the motor unit 40 according to the voltage threshold value; the control unit can identify the states of the vehicle body and the first battery unit 30, if the vehicle body is faulty, the first battery unit 30 is not faulty, and the voltage of the first battery unit 30 is greater than or equal to the voltage threshold, and the control unit can control the first battery unit 30 to communicate with the motor unit 40, so that the first battery unit 30 supplies power to the motor unit 40.
By applying the technical scheme of the utility model, the key unit 10 is arranged in the vehicle body, and the key unit 10 can send a signal to the control unit, when the vehicle is in an emergency state, the key unit 10 can be switched from an initial state to a trigger state by a user, at the moment, the control unit can identify and judge the working states of the vehicle body and the first battery unit 30 after receiving the signal of the key unit 10, and if the vehicle body has a fault at the moment, the first battery unit 30 has no fault and the voltage is greater than or equal to a voltage threshold value, the control unit can enable the first battery unit 30 to continuously work so as to continuously supply power to the motor unit 40, so that the vehicle can continuously move, the situation that the vehicle breaks down or slips down due to sudden power failure is prevented, the occurrence of angina accident caused by sudden fault of the vehicle can be prevented, and personal safety of the user can be protected.
In the embodiment of the present application, when the vehicle can normally run and the key unit 10 is touched by mistake, the control unit recognizes that the operation is invalid at this time, so that the function of the key unit 10 is invalid at this time, so that the first battery unit 30 can be prevented from being put into place by the key unit 10 due to the touching by mistake, and the first battery unit 30 can be protected to prolong the service life thereof.
Further, the control unit includes a vehicle management module and a line control module 22. The vehicle management module is electrically connected with the key unit 10, the vehicle management module has a preset voltage threshold, the line control module 22 is electrically connected with the vehicle management module, the line control module 22 is disposed between the connection lines of the first battery unit 30 and the motor unit 40, and when the voltage of the first battery unit 30 is less than the voltage threshold, the vehicle management module controls the line control module 22 to disconnect the first battery unit 30 and the motor unit 40. By providing the above structure, the connection relationship between the first battery unit 30 and the motor unit 40 can be controlled, so that the user can control the state of the vehicle conveniently.
In the embodiment of the present application, the line control module 22 is specifically a battery pack breaking unit (BDU, batteryDisconnectUnit), which is specially designed for the inside of the battery pack, and belongs to a structure of the high-voltage distribution box. The battery pack disconnection unit generally includes the following components: 1. a system main circuit contactor for opening/cutting off the main circuit direct current of the battery pack; 2. the pre-charging relay protects the high-voltage circuit from instantaneous high-current impact when the system is electrified; 3. and the current sensor is used for measuring and calculating the capacity of the battery pack. The main contactors are configured at both the total positive and total negative terminals of the battery pack to provide a high voltage dc supply to the motor unit 40. In addition, the main contactor may input current to the battery pack at the time of charging or current feedback. When the system is in error, the battery system cuts off the current through the main contactor based on the command of the whole vehicle controller 211 so as to ensure the safety of the system.
Specifically, the vehicle management module includes a vehicle controller 211 and a battery manager 212, the vehicle controller 211 is electrically connected with the key unit 10, the battery manager 212 is electrically connected with the key unit 10, the vehicle controller 211 and the line control module 22, and the battery manager 212 can receive signals of the vehicle controller 211 to control the state of the line control module 22. In this way, when the key unit 10 is in the triggered state, a signal is sent to the vehicle controller 211 and the battery manager 212, if the vehicle controller 211 identifies that there is a fault in the vehicle, an emergency power-on command is sent to the battery manager 212, after the battery manager 212 receives the signal, it is evaluated whether the first battery unit 30 has a fault, and if the first battery unit 30 has no fault and the voltage is higher than the preset voltage threshold, the first battery unit 30 can perform emergency discharge on the motor unit 40.
Further, the voltage threshold is specifically 2V. In the present application, the battery power corresponding to the voltage threshold is 0%, when the vehicle body encounters a fault and the key unit 10 is in the triggered state, if the voltage of the first battery unit 30 is less than 2V, the vehicle body cannot be started at this time, and only when the voltage of the first battery unit 30 is greater than 2V, the vehicle body can be started. Alternatively, in other embodiments of the present application, the voltage threshold may be set to other values, for example, 4V or 5V, where the specific setting should be selected according to the usage environment of the device, so as to improve the application range of the device.
As shown in fig. 3, the emergency discharging apparatus further includes a second battery unit 50, the second battery unit 50 is electrically connected to the first battery unit 30, and the second battery unit 50 is capable of charging the first battery unit 30 when the voltage of the first battery unit 30 is lower than a voltage threshold. In the present application, the second battery unit 50 is a standby power supply and is connected in series with the first battery unit 30, when the vehicle body fails and cannot be started, and the voltage of the first battery unit 30 is lower than the voltage threshold, the second battery unit 50 can charge the first battery unit 30 at this time, so as to ensure that the vehicle can start and move, and further improve the safety of the vehicle body during driving.
Specifically, the emergency discharging apparatus further includes a converter module 60, the converter module 60 being disposed between the first battery cell 30 and the second battery cell 50, the converter module 60 being electrically connected to the battery manager 212, the battery manager 212 controlling a charging direction between the first battery cell 30 and the second battery cell 50 through the converter module 60. In the application, the converter module is a DC-DC converter, and the component can realize a two-way DC-DC converter with double-quadrant operation according to the actually required direction of current change under the condition of keeping the polarities of input and output voltages unchanged. The high-efficiency power supply conversion device is characterized in that the high-efficiency power supply conversion device is used for converting one direct-current voltage into another voltage value or several voltage values, has the characteristics of high efficiency, energy conservation, economy, practicability and the like, and by means of the structure, when a vehicle is charged, the first battery unit 30 is used for charging the second battery unit 50, so that the electric quantity of the first battery unit 30 and the electric quantity of the second battery unit 50 are full, and when the vehicle breaks down, the second battery unit 50 can be used for charging the first battery unit 30, so that the vehicle can be started and moved, and the safety in running of the vehicle body can be further improved.
As shown in fig. 4, the emergency discharging apparatus further includes a third battery unit 70, and the third battery unit 70 is electrically connected to the line control module 22 and the motor unit 40, respectively, and the battery manager 212 can control the connection and disconnection of the first battery unit 30 and the second battery unit 50 from the motor unit 40, respectively. In the present application, the third battery unit 70 and the second battery unit 50 are independent and can be respectively communicated with the motor unit 40, so that when the first battery unit 30 fails, the third battery unit 70 can also be used for supplying power to the motor unit 40 to maintain the normal operation of the vehicle, so that the first battery unit 30 and the second battery unit 50 can not be mutually influenced, and the stability of the vehicle during operation can be ensured.
Specifically, the first battery unit 30 further has a preset first discharge power and a preset second discharge power, wherein when the key unit 10 is switched from the initial state to the trigger state, the control unit can identify the vehicle information, so that the first battery unit 30 is at the first discharge power or the second discharge power. In the present application, when the vehicle is a car, the first battery unit 30 is the first discharge power; when the vehicle is a truck, the first battery unit 30 is of the second discharge power, so that the running requirements of different vehicles can be met, and the driving safety of a user can be ensured.
Further, the emergency discharging device further includes a display screen 80, the display screen 80 is electrically connected to the control unit, and the key unit 10 is disposed on a steering wheel in the vehicle body or on the display screen 80. So arranged, the user can operate the key unit 10 conveniently, and meanwhile, in the application, if the automobile is a car, the first discharging power allows the car to continue to run for 5km, and the emergency discharging prompt is displayed on the display screen 80 at the same time: the current vehicle is in an emergency discharging mode, does not accelerate rapidly, can be estimated to travel for 5 kilometers at most (gradually decreases according to the change of the driving mileage), and is charged in time. Other auxiliary equipment such as air conditioners have been automatically turned off. The simultaneous voice prompt please charge in time; if the vehicle type is a truck, the second discharge power allows the vehicle to run for 1min, and an emergency discharge prompt is displayed on the display screen 80 at the same time: the current vehicle is in an emergency discharging mode, does not accelerate rapidly, predicts that the vehicle can run for 1 minute (according to time decrease) at most, and requests to charge in time. Other auxiliary equipment such as air conditioners have been automatically turned off. Simultaneously, the voice prompts of please charge in time.
In another embodiment of the present application, an electric vehicle is provided, the electric vehicle comprising an emergency discharge device according to any one of the above.
By applying the technical scheme of the utility model, the key unit 10 is arranged in the vehicle body, and the key unit 10 can send a signal to the control unit, when the vehicle is in an emergency state, the key unit 10 can be switched from an initial state to a trigger state by a user, at the moment, the control unit can identify and judge the working states of the vehicle body and the first battery unit 30 after receiving the signal of the key unit 10, and if the vehicle body has a fault at the moment, the first battery unit 30 has no fault and the voltage is greater than or equal to a voltage threshold value, the control unit can enable the first battery unit 30 to continuously work so as to continuously supply power to the motor unit 40, so that the vehicle can continuously move, the situation that the vehicle breaks down or slips down due to sudden power failure is prevented, the occurrence of angina accident caused by sudden fault of the vehicle can be prevented, and personal safety of the user can be protected.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the authorization specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. An emergency discharge device disposed in a vehicle body, the emergency discharge device comprising:
A key unit (10), the key unit (10) being configured to generate a signal in response to a touch by a user;
the control unit is in communication connection with the key unit (10);
A first battery unit (30) electrically connected to the control unit and a motor unit (40) of the vehicle body, respectively, the control unit having a preset voltage threshold and being configured to be responsive to a signal of the key unit (10), the control unit being capable of controlling communication of the first battery unit (30) with the motor unit (40) according to the voltage threshold;
The control unit can identify states of the vehicle body and the first battery unit (30), if the vehicle body is faulty, the first battery unit (30) is faulty, and meanwhile, the voltage of the first battery unit (30) is greater than or equal to the voltage threshold, and the control unit can control the first battery unit (30) to be communicated with the motor unit (40) so that the first battery unit (30) supplies power to the motor unit (40).
2. The emergency discharge device of claim 1, wherein the control unit comprises:
the vehicle management module is electrically connected with the key unit (10) and is provided with the preset voltage threshold value;
The circuit control module (22) is electrically connected with the vehicle management module, the circuit control module (22) is arranged between the connecting circuits of the first battery unit (30) and the motor unit (40), and when the voltage of the first battery unit (30) is smaller than the voltage threshold value, the vehicle management module is used for disconnecting the connection condition of the first battery unit (30) and the motor unit (40) by controlling the circuit control module (22).
3. The emergency discharge device of claim 2, wherein the vehicle management module comprises:
the whole vehicle controller (211) is electrically connected with the key unit (10);
And the battery manager (212) is respectively and electrically connected with the key unit (10), the whole vehicle controller (211) and the line control module (22), and the battery manager (212) can receive signals of the whole vehicle controller (211) so as to control the state of the line control module (22).
4. An emergency discharge device according to any one of claims 1-3, characterized in that the voltage threshold is in particular 2V.
5. An emergency discharge device according to claim 3, characterized in that the emergency discharge device further comprises a second battery unit (50), the second battery unit (50) being electrically connected to the first battery unit (30), the second battery unit (50) being capable of charging the first battery unit (30) when the voltage of the first battery unit (30) is below the voltage threshold.
6. The emergency discharge device of claim 5, further comprising a converter module (60), the converter module (60) being disposed between the first battery cell (30) and the second battery cell (50), the converter module (60) being electrically connected to the battery manager (212), the battery manager (212) controlling a charging direction between the first battery cell (30) and the second battery cell (50) through the converter module (60).
7. The emergency discharge device of claim 5, further comprising a third battery unit (70), the third battery unit (70) being electrically connected to the line control module (22) and the motor unit (40), respectively, the battery manager (212) being capable of controlling the connection and disconnection of the first battery unit (30) and the second battery unit (50) to and from the motor unit (40), respectively.
8. An emergency discharge device according to claim 3, wherein the first battery unit (30) further has a preset first discharge power and second discharge power, wherein the control unit is capable of recognizing vehicle information when the key unit (10) is switched from an initial state to a trigger state, so that the first battery unit (30) is at the first discharge power or the second discharge power.
9. Emergency discharge device according to claim 1, characterized in that it further comprises a display screen (80), the display screen (80) being electrically connected to the control unit, the key unit (10) being arranged on a steering wheel in the vehicle or on the display screen (80).
10. An electric vehicle, characterized in that it comprises an emergency discharge device according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322480124.1U CN220884278U (en) | 2023-09-12 | 2023-09-12 | Emergency discharging device and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322480124.1U CN220884278U (en) | 2023-09-12 | 2023-09-12 | Emergency discharging device and electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220884278U true CN220884278U (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322480124.1U Active CN220884278U (en) | 2023-09-12 | 2023-09-12 | Emergency discharging device and electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220884278U (en) |
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2023
- 2023-09-12 CN CN202322480124.1U patent/CN220884278U/en active Active
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