CN216467444U - Vehicle and storage battery power supply device - Google Patents
Vehicle and storage battery power supply device Download PDFInfo
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- CN216467444U CN216467444U CN202121917124.8U CN202121917124U CN216467444U CN 216467444 U CN216467444 U CN 216467444U CN 202121917124 U CN202121917124 U CN 202121917124U CN 216467444 U CN216467444 U CN 216467444U
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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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Abstract
The present application relates to a vehicle and a battery charging apparatus. The battery power supply device includes: the detection device is used for detecting whether the storage battery is under-voltage or not and sending out an under-voltage signal when the storage battery is under-voltage; the control device is electrically connected with the detection device and is used for receiving the undervoltage signal; the control device is also electrically connected with the power supply and is used for sending an undervoltage signal to the power supply; the power supply is electrically connected with the storage battery and used for supplementing power to the storage battery when receiving the undervoltage signal. The scheme that this application provided, through the voltage of detection device real-time detection battery, charge to the battery through power supply when the magnitude of voltage of battery is less than the threshold value, the battery that this application can in time give the vehicle that does not start for a long time mends the electricity, has solved the problem that the vehicle can't ignite the start because of the battery insufficient voltage.
Description
Technical Field
The application relates to the technical field of automobiles, in particular to a vehicle and a storage battery power supply device.
Background
With the technical development and application of automobile electronics, electronic devices on automobiles are increasing day by day, and the energy consumption requirement on low-voltage storage batteries is greatly improved. If the car owner idles for a long time and the car does not start, the electric quantity of the storage battery is gradually reduced, and finally, the car owner wants to ignite again and start the car, the car owner fails due to the undervoltage of the storage battery, and the car cannot start the car.
SUMMERY OF THE UTILITY MODEL
In order to solve or partially solve the problems in the related art, the application provides a storage battery power supply device which can ensure the normal starting of a vehicle. In addition, this application still provides a vehicle.
The application provides a storage battery power supplementing device for a vehicle in a first aspect. This battery power supply device includes: the detection device is used for detecting whether the storage battery is under-voltage or not and sending out an under-voltage signal when the storage battery is under-voltage; the control device is electrically connected with the detection device and used for receiving the undervoltage signal; the control device is also electrically connected with the power supply and is used for sending an undervoltage signal to the power supply; the power supply is electrically connected with the storage battery and used for supplementing power to the storage battery when receiving the undervoltage signal.
Further, in the above battery charging apparatus, the detecting device is further configured to detect whether the voltage of the battery reaches a safe voltage, and send a safe voltage signal to the control device when the voltage of the battery reaches the safe voltage; the control device is also used for receiving the safe voltage signal and sending the safe voltage signal to the power supply; and the power supply is also used for receiving the safe voltage signal and controlling to stop supplying power to the storage battery.
Further, in the above battery charging apparatus, an output end of the power supply is provided with a switch mechanism, and the power supply is electrically connected to the battery and the control apparatus through the switch mechanism; the control device is used for sending an undervoltage signal to the switch mechanism, and the switch mechanism is used for enabling the power supply to be connected with the storage battery to further supplement power to the storage battery when receiving the undervoltage signal.
In the above battery charging apparatus, the control device is further configured to send a safety voltage signal to the switching mechanism, and the switching mechanism is configured to operate to disconnect the power supply from the battery to stop charging the battery when receiving the safety voltage signal.
Further, in the battery charging apparatus, the detection device includes: the voltage acquisition unit is electrically connected with the storage battery and used for acquiring the voltage value of the storage battery; and the control unit is electrically connected with the voltage acquisition unit and used for receiving the voltage value of the storage battery, comparing the received voltage value with a preset threshold value and sending out an undervoltage signal when the voltage value is lower than the threshold value.
Further, in the battery charging apparatus, the detection device includes: the voltage acquisition unit is electrically connected with the storage battery and used for acquiring the voltage value of the storage battery; and the comparison unit is electrically connected with the voltage acquisition unit and used for receiving the voltage value of the storage battery, comparing the received voltage value with a voltage reference value and sending out an undervoltage signal when the received voltage value is lower than the voltage reference value.
Further, in the storage battery supplement apparatus, the vehicle is an electric vehicle, and the power supply is a part of battery cells connected in series in a power battery of the electric vehicle; the control device is a battery management system of the electric automobile.
Further, the battery power supply device further includes: and the power supply is electrically connected with the storage battery through the isolation power supply.
Further, in the battery charging apparatus, the switching mechanism may be a relay or an optocoupler.
It can be seen that this application passes through the voltage of detection device real-time detection battery, charges to the battery through power supply when the voltage value of battery is less than the threshold value, compares with the mode that makes electron device and then prolong car insufficient voltage speed under low-power consumption and dormancy state among the correlation technique, and this application can in time be for the battery benefit of the vehicle that does not start for a long time, has fundamentally solved the problem of battery insufficient voltage, and then has solved the problem that the vehicle can't ignite the start because of the battery insufficient voltage.
A second aspect of the present application provides a vehicle provided with any one of the battery charging devices described above.
Since the storage battery power supply device has the technical effects, the vehicle with the storage battery power supply device also has corresponding technical effects.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.
Fig. 1 is a block diagram illustrating a structure of a battery charging apparatus according to an embodiment of the present disclosure;
fig. 2 is a block diagram showing a configuration of a detection device in the battery charge device according to the embodiment of the present application;
fig. 3 is a block diagram showing still another configuration of a detection device in the battery charge device according to the embodiment of the present application;
fig. 4 is a block diagram of another structure of the battery charging apparatus according to the embodiment of the present application;
fig. 5 is a schematic structural diagram of a storage battery power supply device according to an embodiment of the present application;
fig. 6 is a flowchart illustrating an operation process of the battery recharging apparatus according to an embodiment of the present application;
reference numerals: the device comprises a detection device 100, a control device 200, a power supply 300, a storage battery 400, a switching mechanism 500, a relay 510, a power battery 600 and an isolation power supply 700.
Detailed Description
Embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While embodiments of the present application are illustrated in the accompanying drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the present application.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
With the increasing number of electronic devices on automobiles, the energy consumption demand of low-voltage storage batteries is also greatly increased. If the vehicle owner idles for a long time and the vehicle is not started, the electric quantity of the storage battery is gradually reduced, and finally the vehicle cannot be ignited and started due to more electricity shortage. Although relevant engineering designers have improved the use to the battery electric quantity to a certain extent through the low-power consumption lectotype and the design to automotive electronics, a large amount of electronic devices still can consume more battery electric quantity on the whole under low-power consumption and dormancy state, leave unused for a long time and do not start the vehicle, still have the risk that the battery insufficient voltage leads to the unable ignition of car to start.
To above-mentioned problem, this application embodiment provides a battery power supplement unit, can carry out automatic power supplement to the battery, and then guarantee the vehicle normal start.
The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a battery power supply device according to an embodiment of the present application.
Referring to fig. 1, the battery charging apparatus in the embodiment of the present application includes: detection device 100, control device 200, and power supply 300.
The detection device 100 is electrically connected to a battery 400 of the vehicle, and the detection device 100 is configured to detect whether the battery 400 is under-voltage or not and to emit an under-voltage signal when the battery 400 is under-voltage. Specifically, the detection device 100 acquires the voltage value of the storage battery 400 in real time, compares the acquired voltage value with a preset voltage threshold, and determines that the storage battery 400 is in an undervoltage state when the acquired voltage value is lower than the threshold, and at this time, the detection device 100 sends an undervoltage signal.
It should be noted that, in specific implementation, a specific value of the voltage threshold of the battery 400 may be determined according to an actual situation, and this embodiment does not limit the value at all.
The control device 200 is electrically connected to the detection device 100 and is configured to receive the under-voltage signal from the detection device 100. Specifically, the control device 200 may be a control chip, such as a single chip, a DSP, or the like.
The control device 200 is also electrically connected to the power supply 300 and is configured to send an under-voltage signal to the power supply 300. The power supply 300 is electrically connected to the battery 400, and the power supply 300 supplements power to the battery 400 when receiving the undervoltage signal, that is, charges the battery 400, so that the battery 400 can normally operate.
It can be seen that, in the embodiment of the present application, the voltage of the storage battery 400 is detected in real time through the detection device 100, and when the voltage value of the storage battery 400 is lower than the threshold value, the storage battery 400 is charged through the power supply 300, compared with a mode in which the electronic device is in a low power consumption and sleep state and further the power shortage speed of the vehicle is prolonged in the related art, the embodiment of the present application can timely supplement power for the storage battery 400 of the vehicle which is not started for a long time, thereby fundamentally solving the problem of power shortage of the storage battery 400, and further solving the problem that the vehicle cannot be started by ignition due to power shortage of the storage battery 400.
In some embodiments, referring to fig. 2, the detection apparatus 100 comprises: a voltage acquisition unit 210 and a control unit 220. The voltage obtaining unit 210 is electrically connected to the battery 400, and is configured to obtain a voltage value of the battery 400 in real time. In a specific implementation, the voltage obtaining unit 210 may be a voltage sensor or the like.
The control unit 220 is electrically connected to the voltage obtaining unit 210, and is configured to receive a voltage value of the battery 400, compare the received voltage value with a preset threshold, and send an under-voltage signal when the voltage value is lower than the threshold. In specific implementation, the control unit 220 may be a control chip, such as a single chip.
In other embodiments, referring to fig. 3, the detection apparatus 100 comprises: a voltage acquisition unit 310 and a comparison unit 320. The voltage obtaining unit 310 is electrically connected to the battery 400, and is configured to obtain a voltage value of the battery 400 in real time. In a specific implementation, the voltage obtaining unit 310 may be a voltage sensor or the like.
The comparing unit 320 is electrically connected to the voltage obtaining unit 310. In a specific implementation, the comparing unit 320 may be a comparator, and a reference value of the comparator may be set as a threshold of the voltage. The comparison unit 320 receives the voltage value of the battery 400 and compares the received voltage value with a reference value, and issues an undervoltage signal when the received voltage value is lower than the voltage reference value. It can be seen that the detection apparatus 100 in the present embodiment is implemented by hardware circuit bonding.
In the above embodiment, the voltage of the storage battery 400 is monitored in real time, and the storage battery 400 is charged when the storage battery 400 is in an undervoltage state, so that after the storage battery 400 reaches a safe voltage, if the storage battery 400 is continuously charged, certain potential safety hazards exist. Based on this, the detection device 100 in the embodiment of the present application is also configured to detect whether the voltage of the battery 400 reaches a safe voltage, and to send a safe voltage signal to the control device 200 when the voltage reaches the safe voltage. The control device 200 is also configured to receive the safety voltage signal and transmit the safety voltage signal to the power supply 300. The power supply 300 is also used for receiving the safe voltage signal and controlling to stop supplying power to the storage battery 400.
In one embodiment, with continued reference to fig. 2, voltage acquisition unit 210 acquires the voltage value of battery 400 in real time. The control unit 220 is configured to receive the voltage value of the battery 400, compare the received voltage value with a preset voltage safety limit, and send a safety signal indicating that the battery 400 has reached a safety voltage when the voltage value is higher than the voltage safety limit.
It should be noted that, in the specific implementation, the specific value of the voltage safety limit of the battery 400 may be determined according to the actual situation, and the embodiment does not limit the voltage safety limit at all
In another embodiment, with continued reference to fig. 3, voltage acquisition unit 310 acquires the voltage value of battery 400 in real time. The comparing unit 320 is electrically connected to the voltage obtaining unit 310, and in a specific implementation, the comparing unit 320 may be a comparator, and a reference value of the comparator may be set as a voltage safety limit value. The comparison unit 320 receives a voltage value of the secondary battery 400 and compares the received voltage value with a reference value, and issues a safety voltage signal when the received voltage value is higher than the voltage reference value.
Referring to fig. 4, in some embodiments, the output terminal of the power supply 300 may be provided with a switching mechanism 500, and the power supply 300 is electrically connected to the storage battery 400 and the control device 200 through the switching mechanism 500. The control device 200 is configured to send an undervoltage signal to the switching mechanism 500, and the switching mechanism 500 is configured to operate to connect the power supply to the storage battery when receiving the undervoltage signal, so as to supplement power to the storage battery. Specifically, the switching mechanism 500 in the embodiment of the present application may be a relay 510, and when the relay 510 receives an undervoltage signal, the relay 510 is closed to connect the power supply 300 and the battery 400.
According to the embodiment of the application, the operation of controlling the on-off of the high-voltage system by the low-voltage signal is realized through the relay, the control mode is safe and reliable, and the cost is low.
Further, control device 200 is also configured to transmit a safety voltage signal to switching mechanism 500, and switching mechanism 500 is configured to operate to disconnect power supply 300 from battery 400 and stop supplying power to battery 400 when receiving the safety voltage signal. When the relay in this embodiment receives the safety voltage signal, relay 510 is opened to disconnect power supply 300 from battery 400.
It is understood that, in this embodiment, the switch mechanism 500 may be a relay, such as a dry-yellow relay, or a switch with isolation properties, such as a high-voltage-resistant optical coupler, which is well known to those skilled in the art.
The power battery is arranged on the electric automobile, and for the electric automobile which is idle for a long time, compared with the storage battery 400, the power shortage of the power battery 600 is almost negligible compared with the self-reserve electric quantity, and based on this, in some embodiments, referring to fig. 5, the power supply 300 is a part of electric cores which are connected in series in the power battery 600 of the electric automobile. Because the power battery 600 is a high-voltage battery, the point a in fig. 5 is a high-voltage total positive, the point B is a high-voltage total negative, the voltage is up to hundreds of volts, and the voltage of the storage battery 400 is generally tens of volts, the power battery 600 cannot directly supply power to the low-voltage storage battery 400, and in the embodiment of the present application, a part of the electric cores of the low-voltage string of the high-voltage power battery 600 is selected as the power supply 300 to supply power to the storage battery 400. In specific implementation, the selection number of the battery cells may be determined according to actual conditions, for example, when the voltage of the battery 400 is 12V and the voltage of each battery cell is 7V, 3 to 4 battery cells may be selected as the power supply 300. When the voltage of the storage battery 400 is 68V, 12-14 battery cores can be selected as the power supply 300.
In this embodiment, a Battery Management System (BMS) of the electric vehicle may be used as the control device 200, the detection device 100 is electrically connected to the BMS through a hard wire, the hard wire may be a CAN or a LIN, and the BMS is electrically connected to a control terminal of the relay 510 to control the on/off of the relay 510 to charge the battery 400.
Referring to fig. 6, the specific process of the BMS controlling the power supplement of the battery 400 is as follows: if detection device 100 detects that battery 400 is undervoltage, then detection device 100 awakens up the BMS through the hardwire, and the BMS sends undervoltage signal to relay 510, and relay 510 closes after receiving the undervoltage signal, makes power battery 600 supply for battery 400. Meanwhile, the detection device 100 continues to detect the voltage of the battery 400, when the voltage compensation of the battery 400 reaches the voltage safety limit value, it indicates that the battery 400 has reached the safety voltage, at this time, the detection device 100 wakes up the BMS through a hard wire, the BMS sends a safety voltage signal to the relay 510, and the relay 510 is turned off after receiving the safety voltage signal, so as to stop the power battery 600 from compensating the battery 400.
This application embodiment is through the supply voltage who monitors battery 400, in case monitor battery 400 under-voltage, then triggers the hardwire and awakens up the BMS system, and control electric automobile self's high-voltage power battery 600 in time mends the electricity for low voltage battery 400, makes car low voltage battery 400 be in normal voltage threshold range for a long time, makes idle long-time electric automobile can not appear battery insufficient voltage trouble.
It can be understood that electrical isolation is required between the high-voltage system and the low-voltage system, so that the embodiment of the present application performs power isolation operation on the power supply 300 for supplying power to the storage battery 400, and the isolation power supply 700 is disposed between the power supply 300 and the storage battery 400, so that the power supply 300 is electrically connected to the storage battery 400 through the isolation power supply 700.
Specifically, an isolation power supply 700 is added between a battery cell selected from the power battery 600 as the power supply 300 and the storage battery 400, and the isolation power supply 700 may be an isolation power supply chip device. When the relay 510 is closed, the power supply 300 supplying power to the battery 400 supplies power to the low-voltage battery 400 by inputting the power1, i.e., power1, to the isolated power chip, and then outputting the power2, i.e., power2, to the isolated power chip.
In conclusion, the embodiment of the application can timely supplement power for the storage battery 400 of the vehicle which is not started for a long time, fundamentally solves the problem of power shortage of the storage battery 400, and further solves the problem that the vehicle cannot be ignited and started due to power shortage of the storage battery 400.
The embodiment of the application also provides a vehicle which is provided with any one of the storage battery power supply devices. The specific implementation process of the storage battery power supply device may refer to the above description, and this embodiment is not described herein again.
Since the battery recharging device has the above effects, the vehicle having the battery recharging device also has corresponding technical effects.
The aspects of the present application have been described in detail hereinabove with reference to the accompanying drawings. In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. Those skilled in the art should also appreciate that the acts and modules referred to in the specification are not necessarily required in the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application may be sequentially adjusted, combined, and deleted according to actual needs, and the modules in the device of the embodiment of the present application may be combined, divided, and deleted according to actual needs.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (9)
1. A battery charging apparatus for a vehicle, comprising:
the detection device is used for detecting whether the storage battery is under-voltage or not and sending out an under-voltage signal when the storage battery is under-voltage;
the control device is electrically connected with the detection device and used for receiving the undervoltage signal;
the control device is also electrically connected with the power supply and is used for sending an undervoltage signal to the power supply;
the power supply is electrically connected with the storage battery and used for supplementing power to the storage battery when receiving the undervoltage signal;
the output end of the power supply is provided with a switch mechanism, and the power supply is electrically connected with the storage battery and the control device through the switch mechanism;
the control device is used for sending an undervoltage signal to the switch mechanism, and the switch mechanism is used for enabling the power supply to be connected with the storage battery to further supplement power to the storage battery when receiving the undervoltage signal.
2. The battery charging apparatus according to claim 1,
the detection device is also used for detecting whether the voltage of the storage battery reaches a safe voltage or not and sending a safe voltage signal to the control device when the voltage of the storage battery reaches the safe voltage;
the control device is also used for receiving the safe voltage signal and sending the safe voltage signal to the power supply;
and the power supply is also used for receiving the safe voltage signal and controlling to stop supplying power to the storage battery.
3. The battery charging apparatus according to claim 1,
the control device is further used for sending a safe voltage signal to the switch mechanism, and the switch mechanism is used for disconnecting the power supply source from the storage battery to stop supplying power to the storage battery when receiving the safe voltage signal.
4. The battery charging apparatus according to claim 1, wherein the detection means comprises:
the voltage acquisition unit is electrically connected with the storage battery and used for acquiring the voltage value of the storage battery;
and the control unit is electrically connected with the voltage acquisition unit and used for receiving the voltage value of the storage battery, comparing the received voltage value with a preset threshold value and sending out an undervoltage signal when the voltage value is lower than the preset threshold value.
5. The battery charging apparatus according to claim 1, wherein the detection means includes:
the voltage acquisition unit is electrically connected with the storage battery and used for acquiring the voltage value of the storage battery;
and the comparison unit is electrically connected with the voltage acquisition unit and used for receiving the voltage value of the storage battery, comparing the received voltage value with a voltage reference value and sending out an undervoltage signal when the received voltage value is lower than the voltage reference value.
6. The battery charging apparatus according to any one of claims 1 to 5,
the vehicle is an electric automobile, and the power supply is a part of battery cells connected in series in a power battery of the electric automobile;
the control device is a battery management system of the electric automobile.
7. The battery charging apparatus according to claim 6, further comprising:
and the power supply is electrically connected with the storage battery through the isolation power supply.
8. A battery charging arrangement as claimed in claim 1 or 3, wherein the switching mechanism is a relay or optocoupler.
9. A vehicle characterized by being provided with the battery charging apparatus according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121917124.8U CN216467444U (en) | 2021-08-16 | 2021-08-16 | Vehicle and storage battery power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121917124.8U CN216467444U (en) | 2021-08-16 | 2021-08-16 | Vehicle and storage battery power supply device |
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| Publication Number | Publication Date |
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| CN216467444U true CN216467444U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121917124.8U Active CN216467444U (en) | 2021-08-16 | 2021-08-16 | Vehicle and storage battery power supply device |
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| CN (1) | CN216467444U (en) |
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2021
- 2021-08-16 CN CN202121917124.8U patent/CN216467444U/en active Active
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