CN210326623U - Movable energy storage equipment - Google Patents
Movable energy storage equipment Download PDFInfo
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- CN210326623U CN210326623U CN201920724732.3U CN201920724732U CN210326623U CN 210326623 U CN210326623 U CN 210326623U CN 201920724732 U CN201920724732 U CN 201920724732U CN 210326623 U CN210326623 U CN 210326623U
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Abstract
The application discloses portable energy storage equipment includes: a battery box; the battery box is arranged on the base; and the traction device is connected to the base and is used for traction connection with external traction equipment. During operation, through outside traction equipment, if the vehicle pulls draw gear, the base removes through the walking wheel, finally realizes deploying the battery box to various occasions conveniently fast and uses, can arrange next application after the application fast. The high cost of purchasing the truck by the truck type energy storage device is avoided, and the inconvenience of moving, loading and unloading the container type energy storage device is also avoided.
Description
Technical Field
The utility model relates to an energy storage technology field, in particular to portable energy storage equipment.
Background
Modern society's dependence on electricity is increasing day by day, and some important power loads especially, once the power interruption, will cause the great loss, and energy storage device's application can solve these problems well. In the field of high-reliability power demand, such as large international conferences, important international events, large celebration activities and college entrance examination, power failure is not allowed to occur, and the energy storage device can provide a backup power supply for the high-reliability power demand, so that the power supply reliability is guaranteed; in sudden natural disaster occasions, such as earthquakes and power grid ice coating faults, the power load is temporarily interrupted, and the energy storage device can ensure the power supply at the moment; in the power grid line maintenance occasion, the energy storage device can be used as a temporary power supply to ensure that important loads are uninterrupted in the maintenance period; in seasonal load occasions, such as tea making seasons and spring festival in rural areas, the power load is increased sharply, and the energy storage device can relieve peak power load under the condition of not increasing capacity of a power grid. However, in these situations, the conventional energy storage device is configured, and because the use probability is low, the equipment is idle for most of the time, the utilization rate of the equipment is very low, and the project economy is very poor, the problems can be solved by adopting the mobile energy storage device.
The existing mobile energy storage devices mainly comprise two types, one type is a truck type energy storage device, namely the energy storage device is arranged on a truck to form an integrated structure, and the mobile energy storage device has the advantages that the mobile energy storage device is convenient to move, but the cost of equipment is high due to the fact that the truck needs to be configured; the other is a container type energy storage device, namely the energy storage device is made into a container, compared with the former mode, the cost is reduced, but the loading and unloading are very inconvenient during moving.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a mobile energy storage device, which is convenient to move and reduces the cost.
In order to achieve the above purpose, the utility model provides the following technical scheme:
a mobile energy storage device, comprising:
a battery box;
the battery box is arranged on the base;
and the traction device is connected to the base and is used for traction connection with external traction equipment.
Preferably, in the above mobile energy storage device, the mobile energy storage device further includes a support rod hinged to the base, when the support rod is turned over and opened, the support rod supports the base, and when the support rod is turned over and folded, the walking wheel supports the base.
Preferably, in the above mobile energy storage device, the battery box is detachably disposed on the base.
Preferably, in the above mobile energy storage device, the battery box includes a box body, and a battery cluster, a junction box, a bidirectional converter and an isolation transformer which are arranged in the box body;
the battery cluster is a plurality of and parallelly connected setting, the battery cluster, the collection flow box, bidirectional converter with isolation transformer connects gradually the series connection, isolation transformer is connected with the electric wire netting.
Preferably, in the above mobile energy storage device, the battery box further includes a high-voltage box, a main breaker, a battery management system, and an energy management system, which are disposed in the box body, a branch breaker is disposed in the high-voltage box, and one high-voltage box is connected between each battery cluster and the junction box; the main breaker is arranged in a series circuit;
the battery management system is in signal connection with the branch circuit breakers and is used for monitoring the temperature and the voltage of the single batteries of the battery cluster, and when the temperature of any single battery exceeds a temperature limit value and the voltage exceeds a voltage threshold value, the branch circuit breakers corresponding to the battery cluster are controlled to be disconnected.
Preferably, in the above mobile energy storage device, the battery box further includes an energy management system, and the energy management system is in signal connection with the bidirectional converter and is configured to control the bidirectional converter to adjust the output active power, reactive power, voltage, and frequency according to a temperature and pressure signal monitored by the battery management system and/or an on-off signal of a power grid.
Preferably, in the above mobile energy storage device, the energy management system is further in signal connection with the main breaker, and the energy management system further controls the switch of the main breaker according to the set charging time and discharging time, so as to realize discharging at the peak time of electricity price and charging at the valley time of electricity price.
Preferably, in the above mobile energy storage device, the number of the total circuit breakers is two, and the total circuit breakers are respectively arranged at two ends of the bidirectional converter.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a portable energy storage equipment includes battery box, base and draw gear, and the base is provided with the walking wheel, and the battery box sets up on the base, and draw gear connects on the base for draw with outside traction equipment and be connected. During operation, through outside traction equipment, if the vehicle pulls draw gear, the base removes through the walking wheel, finally realizes deploying the battery box to various occasions conveniently fast and uses, can arrange next application after the application fast. The high cost of purchasing the truck by the truck type energy storage device is avoided, and the inconvenience of moving, loading and unloading the container type energy storage device is also avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a mobile energy storage device according to an embodiment of the present invention;
fig. 2 is a schematic structural view of the support rod of the mobile energy storage device according to an embodiment of the present invention when the support rod is in a folded state.
Wherein, 1 is a base, 11 is a traveling wheel, 12 is a support rod, 2 is a traction device, 3 is a battery box, 31 is a box body, 32 is a battery cluster, 33 is a high-voltage box, 34 is a branch breaker, 35 is a confluence box, 36 is a total breaker, 37 is a bidirectional converter, 38 is an isolation transformer, 39 is an energy management system, 310 is a battery management system, and 4 is a power grid.
Detailed Description
The core of the utility model is to provide a portable energy storage equipment, when conveniently removing, the cost is reduced.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a mobile energy storage device, which includes a battery box 3, a base 1 and a traction apparatus 2; the base 1 is provided with walking wheels 11, the battery box 3 is arranged on the base 1, and the battery box 3 is carried by the base 1; the traction device 2 is connected to the base 1 and is used for traction connection with external traction equipment.
During operation, through outside traction equipment, if the vehicle pulls draw gear 2, base 1 removes through walking wheel 11, finally realizes deploying battery box 3 to various occasions conveniently fast and uses, but after the application is ended rapid transport arranges next application scenario. The high cost of purchasing the truck by the truck type energy storage device is avoided, and the inconvenience of moving, loading and unloading the container type energy storage device is also avoided.
Further, in this embodiment, the mobile energy storage device further includes a support rod 12 hinged to the base 1, as shown in fig. 1, when the support rod 12 is turned over and opened, the support rod 12 supports the base 1; as shown in fig. 2, the road wheels 11 support the base 1 when the support bar 12 is turned and folded. After the portable energy storage equipment arranges the workplace, open the bracing piece 12 upset, support whole equipment through bracing piece 12, prevent that equipment from removing, improved the support stability of equipment. When the equipment needs to be moved, the supporting rod 12 is turned and folded, and the equipment is moved through the travelling wheels 11.
Further, in this embodiment, the battery boxes 3 are detachably disposed on the base 1, so that the battery boxes 3 are assembled in a modular manner, the number of the battery boxes 3 is determined according to the power demand, and each battery box 3 is connected to the power grid 4 in parallel.
In the present embodiment, the battery box 3 includes a box body 31, and a battery cluster 32, a combiner box 35, a bidirectional converter 37, and an isolation transformer 38 that are disposed in the box body 31; the plurality of battery clusters 32 are arranged in parallel, the battery clusters 32, the combiner box 35, the bidirectional converter 37 and the isolation transformer 38 are sequentially connected in series, and the isolation transformer 38 is connected with the power grid 4.
Each battery cluster 32 is generally formed by a plurality of single batteries connected in series and parallel, all the battery clusters 32 are connected in parallel to a bus box 35, the bus box 35 collects the current of each battery cluster 32 during discharging, and distributes the electricity sent by a bidirectional converter 37 to each battery cluster 32 during charging. When charging, the bidirectional converter 37 converts the ac power sent from the power grid 4 into dc power and transmits the dc power to the combiner box 35; during discharging, the direct current transmitted by the combiner box 35 is converted into alternating current to be transmitted to the power grid 4. The isolation transformer 38 converts the low-voltage power outputted from the bidirectional converter 37 into high-voltage power having the same voltage level as the power grid 4, and transmits the high-voltage power to the power grid 4, and isolates the harmonic and dc components caused by the bidirectional converter 37.
Further, in this embodiment, the battery box 3 further includes a high-voltage box 33, a main breaker 36 and a battery management system 310, which are disposed in the box body 31, a branch breaker 34 is disposed in the high-voltage box 33, and one high-voltage box 33 is connected between each battery cluster 32 and the junction box 35; the main breaker 36 is disposed in a series circuit; the battery management system 310 is in signal connection with the branch breakers 34, and is configured to monitor the temperatures and voltages of the individual batteries of the battery cluster 32, and when the temperature of any individual battery exceeds the temperature limit and the voltage exceeds the voltage threshold, control the branch breaker 34 corresponding to the battery cluster 32 to open, and disconnect the battery cluster 32, thereby completing the working states of the battery clusters 32, such as over-temperature protection, end of charging, end of discharging, and the like. The voltage threshold is usually set to 2.5V to 3.6V, and when the voltage of a single battery is lower than 2.5V or higher than 3.6V, the corresponding battery is cut off, 32.
In this embodiment, the battery box 3 further includes an energy management system 309, and the energy management system 309 is in signal connection with the bidirectional converter 37, and is configured to control the bidirectional converter 37 to adjust the output active power, reactive power, voltage and frequency according to the temperature and pressure signal monitored by the battery management system 310 and/or the on-off signal of the power grid 4, so as to meet the charging or power supply requirement.
Further, in this embodiment, the energy management system 309 is further connected to the main breaker 36 by a signal, and controls the switch of the main breaker 36 according to the set charging time and discharging time and the remaining capacity of the battery cluster 32, so as to realize the discharging during the peak time of electricity price and the charging during the valley time of electricity price. Therefore, the mobile energy storage equipment can be used for emergency standby at a special moment, and can also be used for supplying power to other equipment in a non-emergency state, the charging time is set to be the electricity price low valley time period, the discharging time is set to be the electricity price peak time period, the peak-valley difference electricity price arbitrage can be automatically carried out, and the electricity utilization cost of external equipment is reduced in a long-term idle state. The utilization rate of the mobile energy storage equipment is improved.
In this embodiment, the number of the main breakers 36 is two, and the main breakers are respectively disposed at two ends of the bidirectional converter 37 to achieve on/off of the circuit, and power-off maintenance of the bidirectional converter 37 is facilitated.
The embodiment provides a specific mobile energy storage device, the capacity of a battery box is 70kW × 4h, the battery box is formed by connecting four 69kWh battery clusters in parallel, a single battery cluster is formed by connecting 216 3.2V/100Ah single batteries in series, and the rated voltage is 690V. 4 interfaces are reserved in the combiner box, and four battery clusters are connected in parallel for use. The voltage on the direct current side of the bidirectional converter is 690V, and the voltage on the alternating current side of the bidirectional converter is 400V.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A mobile energy storage device, comprising:
a battery box;
the battery box is arranged on the base;
and the traction device is connected to the base and is used for traction connection with external traction equipment.
2. The mobile energy storage device of claim 1, further comprising a support bar hingedly attached to the base, the support bar supporting the base when the support bar is flipped open and the road wheel supporting the base when the support bar is flipped closed.
3. The mobile energy storage device of claim 1, wherein the battery box is removably disposed on the base.
4. The mobile energy storage device of claim 1, wherein the battery box comprises a box body, and a battery cluster, a combiner box, a bidirectional converter and an isolation transformer arranged in the box body;
the battery cluster is a plurality of and parallelly connected setting, the battery cluster, the collection flow box, bidirectional converter with isolation transformer connects gradually the series connection, isolation transformer is connected with the electric wire netting.
5. The mobile energy storage device according to claim 4, wherein the battery box further comprises a high-voltage box, a main breaker, a battery management system and an energy management system, the high-voltage box, the main breaker, the battery management system and the energy management system are arranged in the box body, branch breakers are arranged in the high-voltage box, and one high-voltage box is connected between each battery cluster and the junction box; the main breaker is arranged in a series circuit;
the battery management system is in signal connection with the branch circuit breakers and is used for monitoring the temperature and the voltage of the single batteries of the battery cluster, and when the temperature of any single battery exceeds a temperature limit value and the voltage exceeds a voltage threshold value, the branch circuit breakers corresponding to the battery cluster are controlled to be disconnected.
6. The mobile energy storage device of claim 5, wherein the battery box further comprises an energy management system in signal connection with the bidirectional converter for controlling the bidirectional converter to adjust the output active power, reactive power, voltage and frequency according to the temperature and pressure signals monitored by the battery management system and/or the on-off signals of the power grid.
7. The mobile energy storage device of claim 6, wherein the energy management system is further in signal connection with the main breaker, and the energy management system further controls the switch of the main breaker according to the set charging time and discharging time, so as to realize discharging during peak time and charging during valley time of electricity price.
8. The mobile energy storage device according to any of claims 5 to 7, wherein the total number of circuit breakers is two, and the two circuit breakers are respectively arranged at two ends of the bidirectional converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920724732.3U CN210326623U (en) | 2019-05-20 | 2019-05-20 | Movable energy storage equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920724732.3U CN210326623U (en) | 2019-05-20 | 2019-05-20 | Movable energy storage equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210326623U true CN210326623U (en) | 2020-04-14 |
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ID=70139227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920724732.3U Expired - Fee Related CN210326623U (en) | 2019-05-20 | 2019-05-20 | Movable energy storage equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210326623U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112968370A (en) * | 2021-01-29 | 2021-06-15 | 福建永福电力设计股份有限公司 | Outdoor liquid cooling high-voltage standard energy storage subunit arrangement method |
-
2019
- 2019-05-20 CN CN201920724732.3U patent/CN210326623U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112968370A (en) * | 2021-01-29 | 2021-06-15 | 福建永福电力设计股份有限公司 | Outdoor liquid cooling high-voltage standard energy storage subunit arrangement method |
| CN112968370B (en) * | 2021-01-29 | 2023-03-03 | 福建永福电力设计股份有限公司 | Outdoor liquid cooling high-voltage standard energy storage subunit arrangement method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200414 Termination date: 20210520 |