TWM552210U - Mobile energy storage system - Google Patents

Abstract

The present invention provides a mobile energy storage system comprising a battery pack, a single cell protection circuit, a high-current relay and a charger. The battery pack comprises a plurality of batteries and at least one voltage detector coupled to the plurality of batteries for measuring the voltage of each battery. The single cell protection circuit has one end coupled to the voltage detector in the battery pack and the other end coupled to a high-current relay. The high-current relay is coupled to an electrical connection unit for transmitting the power of the battery pack to the electrical connection unit. The charger is coupled to the high-current relay for powering the battery pack. The battery pack, the single cell protection circuit, the at least one voltage detector, the high-current relay and the charger are connected and fixed to a mobile device. When a voltage value of one battery exceeds a high threshold, the voltage detector sends a first response signal to disconnect the high-current relay from the connection switch of the charger and the battery pack stops charging. When the voltage value of one battery is lower than a low threshold, the voltage detector sends a second response signal to disconnect the high-current relay from the connection switch of the electrical connection unit and the battery pack stops discharging. According to the present invention, the mobile energy storage system is constituted by the battery pack and other components to charge the electric transport device anytime and anywhere. Through combining the battery pack with the control of the single cell protection circuit, the batteries of the battery pack can operate stably and expand the power of the energy storage system. In addition, by combining the energy storage system with the electric vehicle, the mobile charging equipment or the energy storage system itself can achieve self-sufficient power supply operation.

Description

Mobile energy storage system

The present invention relates to an energy storage system, in particular to a battery cell voltage value that can be monitored by a single cell protection circuit to avoid overcharging or overdischarging of a single cell, and can be moved to a mobile device as needed. Energy storage system.

In recent years, with the environmental awareness of energy conservation and carbon reduction, people and the government have paid more and more attention. Electric transportation devices, such as electric bicycles, electric motors, electric vehicles, electric buses, etc., have no fuel consumption, no noise, no pollution. With the advantages of ease of use, it will gradually become the mainstream of transportation in the future. Nowadays, general transportation vehicles mainly use fossil fuels as a power source, which not only consumes a large amount of petroleum resources, but also is one of the main culprit of greenhouse gas emissions. The development of electric devices will further accelerate the transformation of global industries towards greening.

The battery used in the general commercial electric traffic device is a rechargeable battery. By connecting the power supply device outside the vehicle, when the power is exhausted, the power is input to charge the battery of the electric traffic device. It can be seen that the power and capacity of the electric vehicle battery determine the maximum travel and charging time. However, the battery capacity in the battery of the electric vehicle is limited, and the distance travelable depends entirely on the capacity of the battery after charging.

Based on this, the electric traffic device must be connected to the power supply device frequently for charging. Common charging methods are: charging at a fixed-point charging station, directly connecting to the mains charging, and replacing Use a reserve rechargeable battery, etc. The difficulty caused by the above method is that the charging station equipment is expensive, cannot be universally installed on the road, and when the electric traffic device encounters an anchor or urgently needs power supply and rescue, it cannot function; the direct use of the utility power is slow, and the average person needs Apply to the Taiwan Power Company for high-voltage lines to charge themselves to electric traffic devices, but the high radiation generated by the use of high-voltage electricity is prone to danger and poses a life threat to users and neighbors; the rechargeable battery is not easy to carry and the replacement process is time-consuming. Laborious.

Therefore, in view of the problems existing in the above-mentioned conventional structure, how to develop an innovative structure with more ideal and practicality is really eagerly awaiting the use of consumers, and it is also the goal and direction of relevant industry players to make efforts to develop breakthroughs.

In view of this, the creators have developed a simpler and more advanced design that avoids the above-mentioned shortcomings, is easy to install and achieves higher efficiency, and takes into account the considerations of flexibility and economy.

The problems to be solved by this creative work are as follows: 1. The conventional fixed-point charging station is expensive to set up, has few set points, and has poor maneuverability and cannot provide emergency assistance immediately. 2. The charging equipment for the supply of electric traffic devices is mostly fixed capacity. When the demand is insufficient, it is necessary to redesign. 3. The conventional mobile charging device or energy storage system needs to be combined with or combined with the vehicle to achieve the purpose of movement.

In order to solve the aforementioned problems, the present invention achieves the following effects: 1. A mobile energy storage system is formed through a combination of components such as a battery box group, so that the electric traffic device can be charged anytime and anywhere. 2. Through the composition of the single battery core in the battery box group, combined with the control of the single battery protection circuit, the battery string of the battery box group can be stably operated, and the power of the energy storage system can be expanded and expanded. 3, By combining the concept of an energy storage system with an electric vehicle, the mobile charging device or the energy storage system itself can achieve self-sufficient power supply operation.

In order to further illustrate and explain the problems of solving the foregoing prior art to achieve the desired effect, the present invention provides a mobile energy storage system including a battery box set, a single cell protection circuit, and at least one voltage measuring device. , a large current relay and a charger. The battery box group includes a plurality of battery strings and at least one voltage measuring device, and the battery strings are coupled to at least one voltage measuring device to measure respective cell voltages in each battery string; One end of the single cell protection circuit is coupled to at least one voltage measuring device in the battery box group, the other end is coupled to the high current relay, and the high current relay is coupled to an electrical connecting unit for transmitting power of the battery box group. The power supply is connected to the unit; and the charger is coupled to the high current relay to supply power to the battery box group electrical connection unit.

In one embodiment, the voltage measuring device emits a first response signal when the voltage value of one of the battery cells in the battery string exceeds a high threshold. When the voltage measuring device sends a first response signal, the large current relay will be turned off, and the battery box group stops charging.

In another embodiment, the voltage measuring device emits a second response signal when the voltage value of one of the battery cells in the battery string is lower than a low threshold. When the voltage measuring device sends a second response signal, the large current relay will be turned off, and the battery box group stops discharging.

In order to further understand the present invention, the preferred embodiments of the present invention, together with the drawings and figure numbers, detail the specific components of the present creation and the effects achieved thereby.

10‧‧‧ battery box group

12‧‧‧Battery string

14‧‧‧High current relay

20‧‧‧Voltage measuring device

22‧‧‧Single cell protection circuit

30‧‧‧Charger

40‧‧‧Electrical connection unit

Figure 1 is a schematic diagram of one embodiment of the present invention.

Please refer to FIG. 1 , which is a schematic diagram of an embodiment of the present invention, which includes a battery box set 10 , a single cell protection circuit 22 , a plurality of voltage measuring devices , a large current relay , and a charging . The device 30 is electrically connected to the unit, wherein the battery box group, the single cell protection circuit, the plurality of voltage measuring devices, the large current relay, and the charger are connected and fixed to a mobile device, and the mobile device is a box type vehicle. When implemented, the mobile device can also be other types of wheeled vehicles.

The battery pack 10 includes a plurality of battery strings 12 and a plurality of voltage measuring devices 20, and the battery string 12 is coupled to the voltage measuring device 20 to measure each battery voltage in each battery string 12. One end of the cell protection circuit 22 is coupled to the voltage measuring device 20 in the battery box group 10, and the other end is coupled to the high current relay 14; the charger 30 is coupled to the high current relay 14 to supply power to the battery box group 10; Unit 40 is coupled to high current relay 14 to receive power from battery pack 10 . When implemented, the electrical connection unit 40 is a charging post.

Therefore, in an implementation manner, when the single-cell protection circuit 22 power switch is turned on, the battery box group 10 can be charged, and during the charging process, if the voltage of one of the battery cells in the battery string 12 is When the value exceeds a high threshold, the voltage measuring device 20 will send a first response signal, wherein the high threshold is 3.65V, and the first response signal is an alarm sound. When implemented, the first response signal may also be A flashing signal, or a light that illuminates continuously. When the first response signal is issued, the connection switch of the large current relay 14 and the charger 30 is disconnected, so that the battery box group 10 stops charging to avoid overcharging of the battery cells.

In another embodiment, when the single-cell protection circuit 22 power switch is turned on, if the battery cell group 10 is discharged, if one of the battery cells in the battery string 12 is powered When the voltage value is lower than a low threshold, the voltage measuring device 20 sends a second response signal, wherein the low threshold is 2.8V, and the second response signal is an alarm sound. When implemented, the second response signal is also It can be a flashing signal or a light that is constantly lit. When the second response signal is issued, the large current relay 14 and the electrical connection unit 40 are disconnected, so that the battery box group 10 stops discharging, and the battery cells are prevented from being over-discharged.

The foregoing is a specific embodiment of the present invention and the technical means employed, and many variations and modifications can be derived therefrom based on the disclosure or teachings herein, and can still be regarded as equivalent changes made by the inventive concept. The role of the spirit and the spirit of the text and the scope of the text should be considered within the technical scope of this creation.

In summary, according to the content disclosed above, this creation can achieve the intended purpose of creation, provide a kind of value that is highly utilized in industry, and propose a patent application for creation according to law.

10‧‧‧ battery box group

12‧‧‧Battery string

14‧‧‧High current relay

20‧‧‧Voltage measuring device

22‧‧‧Single cell protection circuit

30‧‧‧Charger

40‧‧‧Electrical connection unit

Claims (4)

A mobile energy storage system includes: a battery box set including a plurality of battery strings and at least one voltage measuring device coupled to the voltage measuring device to measure each battery pack Each cell voltage in the string; a single cell protection circuit, one end of which is coupled to the voltage measuring device in the battery box group, the other end is coupled to a large current relay, and the large current relay is coupled to one An electrical connection unit for transmitting power of the battery box group to the electrical connection unit; and a charger coupled to the large current relay for supplying power to the battery box group. The mobile energy storage system of claim 1, wherein the voltage measuring device emits a first when a voltage value of one of the battery cells exceeds a high threshold In response to the signal, the high current relay is disconnected from the charger and the battery pack is stopped. The mobile energy storage system of claim 1, wherein the voltage measuring device emits a voltage when a voltage value of one of the battery cells in the battery string is lower than a low threshold The second response signal causes the large current relay to be disconnected and the connection switch of the electrical connection unit to stop the battery pack from discharging. The mobile energy storage system of claim 1, wherein the battery box group, the single cell protection circuit, the at least one voltage measuring device, the large current relay, and the charger are connected and fixed to each other On the mobile device.