CN214958848U

CN214958848U - Low-temperature mobile energy storage power supply

Info

Publication number: CN214958848U
Application number: CN202121129127.5U
Authority: CN
Inventors: 张洪中; 华佳欣; 彭俊; 谢泽翔; 向东辉
Original assignee: Wuhan Bioengineering Institute
Current assignee: Wuhan Bioengineering Institute
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-11-30
Anticipated expiration: 2031-05-25

Abstract

The utility model provides a low temperature removes energy storage power, include: the box with set up power module, contravariant module and the control module in the box, power module with the contravariant module links to each other, control module respectively with power module with the contravariant module links to each other, the box outside is equipped with electric heater unit. The utility model discloses a set up heating device in the box outside, make the utility model discloses can normally work under low temperature environment.

Description

Low-temperature mobile energy storage power supply

Technical Field

The utility model belongs to the technical field of the power, concretely relates to low temperature removes energy storage power.

Background

The appearance of the energy storage power supply technology changes the traditional mode that the power industry is used immediately, and relieves the unbalanced relation of power supply and power consumption requirements. Most energy storage power supplies exist for emergency power utilization, and the 12V direct current is converted into 220V alternating current which is the same as the commercial power and is supplied to common household appliances. With the development of society, people's demand for portable mobile power sources is gradually emerging, for example, demand for electricity for outdoor activities, demand for electricity for equipment, and the like. However, the existing portable mobile energy storage power supply has limitations on the electric equipment supported by the power supply, and cannot guarantee to provide service for customers needing power under extremely severe environment conditions

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, provide a type can be at the low temperature mobile energy storage power supply of normal work under the low temperature environment.

In order to solve the technical problem, the utility model discloses provide a low temperature removes energy storage power supply in the first aspect, include: the box with set up power module, contravariant module and the control module in the box, power module with the contravariant module links to each other, control module respectively with power module with the contravariant module links to each other, the box outside is equipped with electric heater unit.

With reference to the first aspect, in a first possible implementation manner, the power supply module includes a battery pack formed by a plurality of battery cell strings and/or parallel connection.

With reference to the first possible implementation manner, in a second possible implementation manner, a fixing strip for enhancing the structural stability of the battery pack is arranged on the outer side surface of the battery pack.

With reference to the first possible implementation manner, in a third possible implementation manner, a partition plate is arranged between the battery packs.

With reference to the first aspect, in a fourth possible implementation manner, the electric heating device includes an electric heating sheet and a temperature measurement module, and the temperature measurement module is connected to the control module.

With reference to the first aspect, in a fifth possible implementation manner, a partition plate is disposed inside the box body, the partition plate forms a cavity along an inner surface of the box body, a partition plate is disposed in the cavity to divide the cavity into two spaces, and the power module, the inverter module, and the control module are disposed in one of the cavities.

With reference to the first aspect, in a sixth possible implementation manner, the inner surface of the partition board is provided with a heat dissipation plate.

With the above technical solution, the low-temperature mobile energy storage power supply further includes: and the solar module is connected with the power supply module and used for charging the power supply module.

With the above technical solution, the low-temperature mobile energy storage power supply further includes: and the heat dissipation module is connected with the control module.

Compared with the prior art, the beneficial effects of the utility model are that: the heating device is arranged outside the box body, so that the power supply can normally work in a low-temperature environment.

Drawings

Fig. 1 shows a schematic diagram of a low-temperature mobile energy storage power supply according to an embodiment of the present invention;

fig. 2 and fig. 3 show an overall structure diagram of a low-temperature mobile energy storage power supply according to an embodiment of the present invention;

fig. 4 is an exploded view of a box structure of a low-temperature mobile energy storage power supply according to an embodiment of the present invention;

fig. 5 shows an overall structure diagram of a power module according to an embodiment of the present invention;

fig. 6 shows an overall structure diagram of a control module according to an embodiment of the present invention;

fig. 7 shows an overall structure diagram of the inverter module according to an embodiment of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present specification, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only a part of the embodiments of the present specification, and not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the present specification without any inventive step should fall within the scope of protection of the present specification. And the drawings described are only schematic and are non-limiting.

In this context, for the sake of brevity, not all possible combinations of individual features in the various embodiments or examples are described. Therefore, the respective features in the respective embodiments or examples may be arbitrarily combined as long as there is no contradiction between the combinations of the features, and all the possible combinations should be considered as the scope of the present specification.

The contents appearing in the present invention, which do not belong to the protection object of the present invention, are all for making the technical personnel in the field understand the present solution more easily, and should not be understood as seeking protection to these contents, and these contents all belong to the prior art.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be connected in wired or wireless communication; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other; one or more of the above meanings may be referred to. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 shows a schematic diagram of a low-temperature mobile energy storage power supply according to an embodiment of the present invention. As shown in fig. 1, the low-temperature mobile energy storage power supply includes: the power supply module 101 is connected with the inverter module 102, the control module 103 is respectively connected with the power supply module 101 and the inverter module 102, and an electric heating device 104 is arranged on the outer side of the box body 105.

The power supply module is used for providing direct current power supply. The power module can adopt core technologies such as a battery cell with ultralow temperature discharge performance at minus 40 ℃, a ternary system material specially mixed in the battery cell, an optimal rare earth formula, a vertical structure design and the like; the rated capacity of the energy storage power supply is up to 200Ah, the cycle life can be more than 2000 times, the operable temperature range of the product is-40 ℃ to 60 ℃, and the product has 2C quick charging performance at normal temperature. The product has the comprehensive advantages of high energy density, anti-electromagnetic interference function, wide working temperature range, long cycle life and the like.

The inversion module is used for converting the direct current output by the power supply module into alternating current and outputting the alternating current to a load.

The control module is used for controlling the on-off of the power supply and controlling the inversion module to adjust the output of the inversion module. Those skilled in the art should understand that the control module can be a single MCU, FPGA or other commonly used control unit, or can be several MCUs, FPGAs or other commonly used control units.

The electric heating device is used for heating the box body 105 when the outside temperature is lower than a set value, so that the box body is kept in a proper temperature range.

In one possible implementation, the power module includes a battery pack formed by a plurality of battery cells connected in series and/or in parallel. The outer surface of the battery pack can be provided with a fixing strip for enhancing the structural stability of the battery pack. A separation plate for preventing disconnection between the battery packs may be provided between the battery packs.

In one possible implementation, the electric heating device comprises an electric heating plate and a temperature measuring module, the temperature measuring module is connected with the control module, and the electric heating plate can be powered by a separate power supply or by the power supply module, but whether the power supply is controlled by the control module. Wherein the electric heating plate can adopt silica gel electric heating plate, and it possesses good pliability, makes box and heating plate contact inseparabler.

In a possible implementation manner, a partition board is arranged on the inner side of the box body, a cavity is formed by the partition board along the inner surface of the box body, a partition board transversely arranged in the cavity divides the cavity into two spaces, and the power module, the inverter module and the control module are arranged in one of the cavities. The isolation board and the empty cavity improve the anti-falling and anti-piercing degree of the energy storage power supply and the stability degree in transportation.

In a possible implementation, the inner surface of the partition board is provided with a heat dissipation plate. The heat dissipation plate can be arranged on the inner surface of the transverse partition plate in the cavity and the upper surface of the lower side plate and is used for reducing the influence of work under a high-temperature environment on the charging performance of a power supply.

In one possible implementation manner, the low-temperature mobile energy storage power supply further includes: and the solar module is connected with the power supply module and used for charging the power supply module. The solar module can adopt a photovoltaic folding bag, has the functions of reverse connection protection, short circuit protection, temperature compensation and overcurrent and overvoltage protection, and has the maximum charging current of 20A, the low-electricity protection voltage of 22.4V and the low-electricity recovery voltage of 24V

In one possible implementation manner, the low-temperature mobile energy storage power supply further includes: and the heat dissipation module is connected with the control module.

Fig. 2-7 show the structure diagram of the low-temperature mobile energy storage power supply according to an embodiment of the present invention. As shown in fig. 2-7, low temperature removes energy storage power supply includes outer container 8, outer container 8 upper surface is equipped with master switch 13, two 220VAC output interface 1, control monitor 2, solar charging interface 10, two 5VUSB output interface 7, two commercial power interface 11 and DC12V output interface 6, DC24V output interface 12 that charge, the practical condition of power is presented in control panel 2 accessible electric quantity and temperature display, be equipped with the visor on the 220VAC output interface 1, can prevent the foreign matter entering, effectively restrain because of the sudden strain of a muscle leaks the output interface life-span that leads to at humid air and shorten. Further, universal wheel 9 and handle 4, pull rod 5 that outer container 8 was equipped with ensure the convenience and the stability that energy memory removed, but when the energy memory that the ultra-low temperature of monitoring formula removed began work, indicator 31 bright green light.

The power module 32 comprises a battery pack consisting of a plurality of single polymer batteries 33 connected in series and in parallel to form 25.6V200Ah, the battery module 32 is fixed at the position of one third below the box body by the peripheral pressure plate 14, the upper side of the power module 32 is provided with a baffle 15 to provide a puncture-proof safety protection function, and the top of the plurality of single polymer batteries 33 is provided with a plurality of connecting sheets 22, preferably, in order to improve the conductivity, the plurality of connection pieces 22 are phosphor-copper sheets, the plurality of unit polymer batteries 33 are connected in series and in parallel by the plurality of connection pieces 22, the 18 EVA strip ribs 21 are filled to enhance the stability of the plurality of unit polymer cells 33, the outer sides of the single polymer batteries 33 are provided with insulating plates 20, the middles of the left side and the right side of the battery module 32 are provided with insulating epoxy plates 19 for separating and insulating the battery modules, and the power module 32 is provided with a positive electrode battery connecting end 17 and a negative electrode connecting end 18.

The inverter module 35 is provided with a positive electrode battery connection terminal 36, a negative electrode connection terminal 37, and an air-dispersing port 38. The inverter module can be provided with a heat dissipation module, when the internal temperature environment exceeds a safe range, the heat dissipation module is automatically started to ensure normal discharge of the battery module 32, when the positive electrode connecting end 36 and the negative electrode connecting end 37 of the inverter module 35 are connected into a circuit, the inverter module 35 enters a working state, and when direct current is converted into alternating current and the energy storage power supply outputs 220V alternating current, the continuous output power of the inverter module 35 reaches 1000W pure ripple waves; when the energy storage device is output by USB1+ GND (connected with the negative pole of a power supply), the inversion module 35 adopts a 9-32V to 5V module to reduce the voltage; when the energy storage device outputs 24V to 12V, the inversion module 35 adopts a module for converting 15-40V to 12V +/-0.25 to reduce the voltage. Furthermore, the current after voltage reduction is connected to different interfaces on the outer box 8, so that the power consumption requirements of different devices are met.

After the plurality of interfaces 24 of the control module 23 are connected with the circuit, the low-temperature mobile energy storage power supply is subjected to on-off control, charging control, high-voltage pre-charging control, balance control and the like, and the power supply and power off operation of the equipment can be controlled through the main switch 13. The control module 23 may have multiple detection functions, such as detecting the cell voltage and the temperature of the battery cell in real time; detecting the charging and discharging current of the battery pack and tracking the change of the current in real time; detecting the contact adhesion condition of the main positive and negative high-voltage contactors; whether the connection state of the circuit has short circuit, open circuit and the like is detected. The control module 23 further has high voltage management, pre-charging function, thermal management function, charging and discharging management and protection function and remote monitoring function, the high voltage management function of the control module 23 refers to selecting to switch off or connect a high voltage output relay according to the instruction of the energy storage device and the related state of the battery module 32, the pre-charging function of the control module 23 refers to switching on a contactor to output high voltage when detecting that the load high voltage is close to the battery pack voltage before switching on the high voltage output stage, and during the pre-charging process, the control module can also operate successfully according to the time condition half-section pre-charging process, the thermal management function of the control module 23 refers to detecting the temperature in the battery module 32, when the temperature is over-high or the temperature difference with the inside is too large, the control module performs heat dissipation treatment to reduce the temperature or reduce the inside temperature difference to reach a relatively balanced temperature difference state, the charge and discharge management function of the control module 23 means that the current allowed charge and discharge current value is determined according to the temperature, charge and health state of the battery module 32, after the charge is finished, the current is automatically in a dormant state, the influence of the work on the battery life is reduced, in an ideal state, the energy storage power supply is generally allowed to have a direct current charging output current 15A, an alternating current output current 4.5A, USB1+ GND (connected with the negative pole of the power supply) output current reaching 2.4A, a 24V direct current output current reaching 15A and a 24V to 12V output current reaching 10A, the protection function of the control module 23 means that all power supply ends are provided with anti-reverse and anti-impact, all output input pins and controller LAN interfaces are provided with ESD (anti-static electricity processing) protection function, the remote monitoring function of the control module 23 means that the battery management system can send the data of the battery module 32 and the related information thereof to the control screen 2, the value shows the service condition of the power supply, and the value can be connected with the background software through the mobile phone Bluetooth to transmit information, so that the remote monitoring function is realized. Further, the cell voltage detection range of the control module 23 is 0V to 5V, the full-range cell voltage detection precision is ± 5mV, the battery temperature detection range is-40 ℃ to +80 ℃, the high voltage detection range is 0V to 500V, the current detection range is ± 500A, and the insulation detection range is 10K Ω to 10M Ω.

It should be understood that parts of the specification not set forth in detail are well within the prior art. The scope of the present invention is not limited to the above-described embodiments, and it is obvious that those skilled in the art can make various modifications and variations to the present invention without departing from the scope and spirit of the present invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. A cryogenic mobile energy storage power supply comprising: the box with set up power module, contravariant module and the control module in the box, power module with the contravariant module links to each other, the control module respectively with power module with the contravariant module links to each other, its characterized in that, the box outside is equipped with electric heater unit.

2. The cryogenic mobile energy storage power supply of claim 1, wherein: the power module comprises a battery pack formed by a plurality of single battery strings and/or parallel connection.

3. The cryogenic mobile energy storage power supply of claim 2, wherein: and the outer surface of the battery pack is provided with a fixing strip for enhancing the structural stability of the battery pack.

4. The cryogenic mobile energy storage power supply of claim 2, wherein: and an isolation plate is arranged between the battery packs.

5. The cryogenic mobile energy storage power supply of claim 1, wherein: the electric heating device comprises an electric heating piece and a temperature measuring module, and the temperature measuring module is connected with the control module.

6. The cryogenic mobile energy storage power supply of claim 1, wherein: the power supply module, the inversion module and the control module are arranged in one of the cavities.

7. The cryogenic mobile energy storage power supply of claim 6, wherein: the inner surface of the isolation plate is provided with a heat dissipation plate.

8. A cryogenic mobile energy storage power supply according to any one of claims 1 to 7 further comprising: and the solar module is connected with the power supply module and used for charging the power supply module.

9. A cryogenic mobile energy storage power supply according to any one of claims 1 to 7 further comprising: and the heat dissipation module is connected with the control module.