CN106356579A - Safety type power battery system for electric automobile - Google Patents
Safety type power battery system for electric automobile Download PDFInfo
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- CN106356579A CN106356579A CN201611084184.XA CN201611084184A CN106356579A CN 106356579 A CN106356579 A CN 106356579A CN 201611084184 A CN201611084184 A CN 201611084184A CN 106356579 A CN106356579 A CN 106356579A
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- 238000009434 installation Methods 0.000 claims abstract description 49
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 239000000779 smoke Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract description 5
- 238000013021 overheating Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
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Abstract
本发明提供的一种安全型电动汽车动力电池系统，包括安装箱、动力电池组以及安装箱盖；所述安装箱设置有电池安装区和电池附件安装区，所述动力电池组固定设置于电池安装区；还包括灭火器，所述灭火器设置于安装箱的内侧壁；还包括触发单元，所述触发单元包括用于检测安装箱内动力电池组消防状态的传感器模块、车载控制器以及消防提示模块；所述传感器模块设置于所述安装箱内，所述传感器模块与车载控制器连接，所述车载控制器与消防提示模块连接，所述车载控制器还与灭火器的电控启动装置连接；能够有效对动力电池组的工作状态进行监测，并在出现火情的状态进行自动灭火或者在电池过热的状态对动力电池进行消除，有效避免动力电池发生爆炸等重大安全事故。
A safe electric vehicle power battery system provided by the present invention includes an installation box, a power battery pack, and an installation box cover; the installation box is provided with a battery installation area and a battery accessory installation area, and the power battery pack is fixedly arranged on the battery Installation area; also includes a fire extinguisher, the fire extinguisher is arranged on the inner wall of the installation box; also includes a trigger unit, the trigger unit includes a sensor module for detecting the fire state of the power battery pack in the installation box, an on-board controller and a fire warning module The sensor module is arranged in the installation box, the sensor module is connected with the vehicle-mounted controller, the vehicle-mounted controller is connected with the fire warning module, and the vehicle-mounted controller is also connected with the electric control starting device of the fire extinguisher; Effectively monitor the working status of the power battery pack, and automatically extinguish the fire in the state of fire or eliminate the power battery in the state of overheating, effectively avoiding major safety accidents such as explosion of the power battery.
Description
技术领域technical field
本发明涉及一种动力电池系统，尤其涉及一种安全型电动汽车动力电池系统。The invention relates to a power battery system, in particular to a safe electric vehicle power battery system.
背景技术Background technique
伴随着我国汽车行业的发展，其排放法规、燃油经济性及舒适性越来越受到重视，为此电动汽车的应用越来越广泛，而电动汽车的能量储存与传统汽油、柴油车完全不同，主要采用动力电池储存和提供用于驱动电动汽车行驶的能量。With the development of my country's automobile industry, more and more attention has been paid to its emission regulations, fuel economy and comfort. For this reason, electric vehicles are more and more widely used, and the energy storage of electric vehicles is completely different from traditional gasoline and diesel vehicles. Power batteries are mainly used to store and provide energy for driving electric vehicles.
电动汽车均采用动力电池进行供电，由于锂电池具有比容量大、工作电压高、循环寿命长、体积小、重量轻等优点，因此，锂电池被广泛采用，但是单体锂电池的电压和容量都很小，因此，一般在电动汽车上用很多的单体电池通过并、串联方式形成电池模组，装置在电池箱体内。Electric vehicles are powered by power batteries. Because lithium batteries have the advantages of large specific capacity, high working voltage, long cycle life, small size, and light weight, lithium batteries are widely used, but the voltage and capacity of single lithium batteries They are very small, therefore, generally many single batteries are used in electric vehicles to form a battery module in parallel and in series, and are installed in the battery box.
但是由于生产工艺等原因，各单体电池的容量与性能不可避免的存在一些差异，电动汽车在行驶时，容量小性能差的单体电池会有过放现象，而在充电时，容量小性能差的单体电池又会出现过充现象，长此以往，这种差异必然会越来越大，使电池组的利用率越来越差。更为严重的是，在过充或过放的环境下，电池正负极片间的隔膜会被击穿而短路，产生高温、过热使电解液汽化、膨胀而使电池外壳破裂，甚至发生着火或爆炸，然而，目前还没有对上述问题进行有效解决的技术手段。However, due to the production process and other reasons, there are inevitably some differences in the capacity and performance of each single battery. When an electric vehicle is running, a single battery with a small capacity and poor performance will be over-discharged. Poor single cells will be overcharged again. If things go on like this, this difference will inevitably become larger and larger, making the utilization rate of the battery pack worse and worse. What's more serious is that in the environment of overcharging or overdischarging, the diaphragm between the positive and negative electrodes of the battery will be broken down and short-circuited, resulting in high temperature, overheating, vaporization of the electrolyte, expansion of the battery case, and even fire. Or explosion, yet, there is no technical means to effectively solve the above problems at present.
发明内容Contents of the invention
有鉴于此，本发明的目的是提供一种安全型电动汽车动力电池系统，能够有效对动力电池组的工作状态进行监测，并在出现火情的状态进行自动灭火或者在电池过热的状态对动力电池进行消除，有效避免动力电池发生爆炸等重大安全事故。In view of this, the purpose of the present invention is to provide a safe electric vehicle power battery system, which can effectively monitor the working state of the power battery pack, and automatically extinguish the fire in the state of fire or control the power when the battery is overheated. The battery is eliminated, effectively avoiding major safety accidents such as the explosion of the power battery.
本发明提供的一种安全型电动汽车动力电池系统，包括安装箱、动力电池组以及安装箱盖；A safe electric vehicle power battery system provided by the present invention includes a mounting box, a power battery pack, and a mounting box cover;
所述安装箱设置有电池安装区和电池附件安装区，所述动力电池组固定设置于电池安装区；The installation box is provided with a battery installation area and a battery accessory installation area, and the power battery pack is fixedly arranged in the battery installation area;
还包括灭火器，所述灭火器设置于安装箱的内侧壁，所述灭火器为具有电控启动装置和手动启动装置；It also includes a fire extinguisher, which is arranged on the inner wall of the installation box, and the fire extinguisher has an electric control starting device and a manual starting device;
还包括触发单元，所述触发单元包括用于检测安装箱内动力电池组消防状态的传感器模块、车载控制器以及消防提示模块；It also includes a trigger unit, the trigger unit includes a sensor module for detecting the fire state of the power battery pack in the installation box, an on-board controller and a fire prompt module;
所述传感器模块设置于所述安装箱内，所述传感器模块与车载控制器连接，所述车载控制器与消防提示模块连接，所述车载控制器还与灭火器的电控启动装置连接。The sensor module is arranged in the installation box, the sensor module is connected to the vehicle controller, the vehicle controller is connected to the fire warning module, and the vehicle controller is also connected to the electric control starting device of the fire extinguisher.
进一步，所述灭火器为多个，且灭火器分别设置于安装箱的宽边处的内侧壁，所述安装箱的宽边两侧壁灭火器交错设置。Further, there are multiple fire extinguishers, and the fire extinguishers are respectively arranged on the inner side walls of the wide sides of the installation box, and the fire extinguishers are arranged alternately on both sides of the wide sides of the installation box.
进一步，所述灭火器为具有电控启动装置和手动启动装置。Further, the fire extinguisher has an electric control starting device and a manual starting device.
进一步，所述传感器模块包括电信号传感器、温度传感器、明火传感器以及烟雾传感器。Further, the sensor module includes an electrical signal sensor, a temperature sensor, an open flame sensor and a smoke sensor.
进一步，所述消防提示模块包括车载显示器以及语音提示器，所述车载显示器和语音提示器均与车载控制器连接。Further, the fire warning module includes a vehicle-mounted display and a voice prompter, and the vehicle-mounted display and voice prompter are both connected to the vehicle-mounted controller.
进一步，所述触发单元还包括手动触发开关，所述手动触发开关与车载控制器连接。Further, the trigger unit further includes a manual trigger switch, and the manual trigger switch is connected to the vehicle controller.
进一步，所述安装箱外侧壁固定设置有多个固定件，所述固定件包括连接部、固定部以及加强部，所述加强部、固定部以及连接部均为板状结构，所述加强部为三角形且加强部为固定部的两侧边缘翻折形成，所述连接部分别由固定部以及加强部的后侧边缘翻折形成，所述连接部和加强部的板面均垂直于固定部的板面。Further, the outer wall of the installation box is fixedly provided with a plurality of fixing parts, and the fixing parts include a connection part, a fixing part and a reinforcement part, and the reinforcement part, the fixing part and the connection part are all plate-shaped structures, and the reinforcement part It is triangular and the reinforcing part is formed by turning over the two side edges of the fixing part, and the connecting part is formed by turning over the rear side edges of the fixing part and the reinforcing part respectively, and the board surfaces of the connecting part and the reinforcing part are perpendicular to the fixing part of the board.
进一步，所述灭火器为干粉灭火器。Further, the fire extinguisher is a dry powder fire extinguisher.
本发明的有益效果：本发明的安全型电动汽车动力电池系统，能够有效对动力电池组的工作状态进行监测，并在出现火情的状态进行自动灭火或者在电池过热的状态对动力电池进行消除，有效避免动力电池发生爆炸等重大安全事故。Beneficial effects of the present invention: the safe electric vehicle power battery system of the present invention can effectively monitor the working state of the power battery pack, and automatically extinguish the fire in the state of fire or eliminate the power battery in the state of battery overheating. , Effectively avoid major safety accidents such as power battery explosions.
附图说明Description of drawings
下面结合附图和实施例对本发明作进一步描述：The present invention will be further described below in conjunction with accompanying drawing and embodiment:
图1为本发明的整体结构示意图。Figure 1 is a schematic diagram of the overall structure of the present invention.
图2为图1中A处放大图。Figure 2 is an enlarged view of A in Figure 1 .
图3为图1中去掉安装箱盖结构示意图。Fig. 3 is a schematic diagram of the structure in Fig. 1 with the installation box cover removed.
图4为本发明的电气原理框图。Fig. 4 is the electrical principle block diagram of the present invention.
具体实施方式detailed description
图1为本发明的整体结构示意图，图2为图1中A处放大图，图3为图1中去掉安装箱盖结构示意图，如图所示，本发明提供的一种安全型电动汽车动力电池系统，包括安装箱2、动力电池组8以及安装箱盖1；Fig. 1 is a schematic diagram of the overall structure of the present invention, Fig. 2 is an enlarged view of A in Fig. 1, and Fig. 3 is a schematic diagram of the structure of removing the installation box cover in Fig. 1, as shown in the figure, a kind of safe electric vehicle power provided by the present invention Battery system, including installation box 2, power battery pack 8 and installation box cover 1;
所述安装箱2设置有电池安装区22和电池附件安装区21，所述动力电池组8固定设置于电池安装区21；电池附件安装于用于安装电池附件，比如输出接口、连接柱等；The installation box 2 is provided with a battery installation area 22 and a battery accessory installation area 21, and the power battery pack 8 is fixedly arranged in the battery installation area 21; the battery accessories are installed for installing battery accessories, such as an output interface, a connecting column, etc.;
还包括灭火器5，所述灭火器5设置于安装箱2的内侧壁；其中，所述灭火器5为具有电控启动装置和手动启动装置，其中，电控启动装置为现有技术，比如采用电控阀门进行控制，手动启动装置采用现有的结构，比如采用手动启动阀门；通过这种结构，能够保证灭火器不会失效，提高安全性；Also includes a fire extinguisher 5, the fire extinguisher 5 is arranged on the inner wall of the installation box 2; wherein, the fire extinguisher 5 has an electric control starting device and a manual starting device, wherein the electric control starting device is a prior art, such as using an electric control The valve is controlled, and the manual starting device adopts the existing structure, such as using a manual starting valve; through this structure, it can ensure that the fire extinguisher will not fail and improve safety;
还包括触发单元，所述触发单元包括用于检测安装箱内动力电池组8消防状态的传感器模块、车载控制器以及消防提示模块；It also includes a trigger unit, which includes a sensor module for detecting the fire protection state of the power battery pack 8 in the installation box, an on-board controller, and a fire prompt module;
所述传感器模块设置于所述安装箱2内，所述传感器模块与车载控制器连接，所述车载控制器与消防提示模块连接，所述车载控制器还与灭火器的电控启动装置连接；其中，所述灭火器为干粉灭火器；通过上述结构，能够有效对动力电池组的工作状态进行监测，并在出现火情的状态进行自动灭火或者在电池过热的状态对动力电池进行消除，有效避免动力电池发生爆炸等重大安全事故。The sensor module is arranged in the installation box 2, the sensor module is connected to the vehicle controller, the vehicle controller is connected to the fire warning module, and the vehicle controller is also connected to the electric control starting device of the fire extinguisher; wherein , the fire extinguisher is a dry powder fire extinguisher; through the above structure, the working state of the power battery pack can be effectively monitored, and the fire can be automatically extinguished in the state of fire or the power battery is eliminated in the state of battery overheating, effectively avoiding the power battery Explosions and other major safety accidents occurred.
本实施例中，所述灭火器5为多个，且灭火器5分别设置于安装箱2的宽边处的内侧壁，所述安装箱2的宽边两侧壁灭火器5交错设置，如图3所示，安装箱为长方形结构，利于布置多组动力电池，对应于安装箱长度方向的边为长边，对应于安装箱宽度方向的边为宽边；安装箱的宽边处为图3中的左右两边，交错设置：比如在安装箱的左侧设置1各灭火器，右侧设置两个灭火器，那么左侧的灭火器对着右侧两个灭火器之间，从而保证在灭火时的覆盖区域，提高安全性；当然，灭火器的个数还可以设置更多，根据实际生产状况确定。In this embodiment, there are multiple fire extinguishers 5, and the fire extinguishers 5 are respectively arranged on the inner side walls of the wide sides of the installation box 2, and the fire extinguishers 5 on both side walls of the wide sides of the installation box 2 are arranged alternately, as shown in Figure 3 As shown, the installation box has a rectangular structure, which is conducive to the arrangement of multiple sets of power batteries. The side corresponding to the length direction of the installation box is the long side, and the side corresponding to the width direction of the installation box is the wide side; the wide side of the installation box is the Left and right sides, staggered settings: for example, one fire extinguisher is set on the left side of the installation box, and two fire extinguishers are set on the right side, then the fire extinguisher on the left is facing between the two fire extinguishers on the right, so as to ensure the coverage area during fire extinguishing and improve Safety; Of course, the number of fire extinguishers can also be set more, determined according to the actual production situation.
本实施例中，所述传感器模块包括电信号传感器、明火传感器3、温度传感器以及烟雾传感器4，所述电信号传感器包括电流传感器和电压传感器，用于监测动力电池的状态，温度传感器检测动力电池组的温度参数，明火传感器采用JXFS200传感器，通过上述结构，能够对动力电池组的状态进行准确检测，从而保证控制精度，当然，上述中的各传感器均设置有多个。In this embodiment, the sensor module includes an electrical signal sensor, an open flame sensor 3, a temperature sensor, and a smoke sensor 4. The electrical signal sensor includes a current sensor and a voltage sensor for monitoring the state of the power battery, and the temperature sensor detects the state of the power battery. For the temperature parameter of the battery pack, the open flame sensor adopts JXFS200 sensor. Through the above structure, the state of the power battery pack can be accurately detected, so as to ensure the control accuracy. Of course, there are multiple sensors for each of the above.
本实施例中，所述消防提示模块包括车载显示器以及语音提示器，所述车载显示器和语音提示器均与车载控制器连接，通过这种结构，能够及时控制灭火器进行灭火以及对驾驶员进行安全告警，其中，车载控制器设置有温度参数阈值，当实时温度大于该温度参数阈值，则通过语音提示器进行提示，是否需要进行明火，强制降低动力电池组的温度；当烟雾传感器以及明火传感器有信号输出，车载控制器直接控制灭火器喷发，并且进行语音告警。In this embodiment, the fire warning module includes a vehicle-mounted display and a voice prompter, and the vehicle-mounted display and voice prompter are connected to the vehicle-mounted controller. With this structure, the fire extinguisher can be controlled in time to extinguish the fire and the safety of the driver can be ensured. Alarm, wherein the on-board controller is set with a temperature parameter threshold, when the real-time temperature is greater than the temperature parameter threshold, the voice prompter will prompt whether an open flame is required, and the temperature of the power battery pack is forcibly reduced; when the smoke sensor and the open flame sensor have Signal output, the on-board controller directly controls the fire extinguisher to emit, and gives a voice alarm.
本实施例中，所述触发单元还包括手动触发开关，所述手动触发开关与车载控制器连接，其中，手动触发开关设置于驾驶室内，采用按钮开关或者触摸开关，利于手动控制灭火器的喷发。In this embodiment, the trigger unit further includes a manual trigger switch connected to the on-board controller, wherein the manual trigger switch is arranged in the driver's compartment and adopts a button switch or a touch switch, which is beneficial to manually control the eruption of the fire extinguisher.
本实施例中，所述安装箱2外侧壁固定设置有多个固定件，所述固定件包括连接部6、固定部9以及加强部10，所述加强部10、固定部9以及连接部6均为板状结构，所述加强部10为三角形且加强部10为固定部9的两侧边缘翻折形成，所述连接部6分别由固定部9以及加强部10的后侧边缘翻折形成，所述连接部和加强部的板面均垂直于固定部的板面；通过上述结构，利于对安装箱进行固定安装，而且结构强度高，结构牢固。In this embodiment, the outer wall of the installation box 2 is fixed with a plurality of fixing parts, and the fixing parts include a connecting part 6, a fixing part 9 and a reinforcing part 10, and the reinforcing part 10, the fixing part 9 and the connecting part 6 Both are plate-like structures, the reinforcing part 10 is triangular and the reinforcing part 10 is formed by turning over the two side edges of the fixing part 9, and the connecting part 6 is formed by turning over the rear side edges of the fixing part 9 and the reinforcing part 10 respectively , the board surfaces of the connecting part and the reinforcing part are both perpendicular to the board surface of the fixing part; through the above structure, it is beneficial to fix and install the installation box, and the structural strength is high and the structure is firm.
最后说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的宗旨和范围，其均应涵盖在本发明的权利要求范围当中。Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.
Claims (7)
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