Stacked energy storage device

Abstract

A stacked energy storage device belongs to the technical field of energy storage equipment and comprises a movable shell, an element shell, a bottom shell, a storage battery pack, an inverter, a battery management system, a control system, a power socket, a power socket A, a power plug wire and a voltage detection circuit. The inverter, the battery management system, the control system, the voltage detection circuit and the power socket are arranged in the element shell and are electrically connected; two power sockets A in each group are respectively arranged at the inner side end of the bottom shell, the fixed rods A at the lower end of the movable shell at the upper end are respectively inserted into the four fixed grooves at the upper end of the movable shell at the lower end, and the fixed rods at the lower end of the element shell are respectively inserted into the fixed grooves at the upper end of the movable shell at the upper end; the fixing rods A of the movable shell at the lowermost end are inserted into the fixing grooves A in the upper end of the bottom shell. The movable shell, the element shell and the bottom shell can be effectively combined together in an inserting mode, the appearance is attractive, and an alarm can be given in time to remind a user of charging and the like when data is abnormal.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage device technical field, especially a kind of stacked energy storage device. BACKGROUND

[0002] Energy storage cabinet (energy storage device) is a kind of equipment specially designed to store electric energy, and its core components include battery pack (battery module), inverter and battery management system, control system, etc., battery pack, inverter and battery management system, control system are installed in shell. The main function of energy storage cabinet is to store electric energy when power supply is sufficient, and then release these electric energy when power demand is high or power is insufficient, while it can also suppress load jump, play the role of frequency modulation and voltage regulation, improve power factor, due to its characteristics of high energy density, fast response time and long service life, it has become a key component of modern energy system. Energy storage cabinet is usually composed of the following parts: (1) battery module: it is the core component of energy storage cabinet, used to store electric energy, common battery modules include lithium ion battery, lead-acid battery, etc.;(2) battery management system (BMS): used to monitor and control the state of battery, charging and discharging process and protect battery from overcharge, overdischarge, overcurrent and other abnormal conditions;(3) inverter: convert stored direct current electric energy into alternating current electric energy for power system or other equipment;(4) control system: monitor and control the running state of energy storage unit, energy management and communication with other equipment. (5) shell and connector: provide protection and mechanical support, and ensure the connection with other equipment.

[0003] Although the existing energy storage cabinet meets the use needs to some extent, but due to the limitation of structure, there are still the following technical problems. First, it is not convenient to increase the number of storage battery group, for example, the power consumption of the corresponding power supply area is relatively large, and the power failure frequency is relatively high. The number of storage battery group of the current energy storage cabinet is small, and the total power provided is relatively low. Since the internal space of the shell is fixed, it is not convenient to install additional storage batteries, which will have certain impact on actual application (renewing the shell to install new storage batteries will make the overall equipment not beautiful). Second, it does not have real-time voltage monitoring function. When the output voltage is too low, relevant personnel cannot deal with it in the first time, which will cause adverse effects on normal use and certain safety risks. UTILITY MODEL CONTENTS

[0004] In order to overcome the existing energy storage cabinet due to the structure of the limited, there are disadvantages as described in the background art, the utility model provides under the joint action of related mechanism, can according to the number of battery pack used conveniently increase and decrease the number of movable shell, and movable shell and element shell, bottom shell can be effectively combined together, appearance is beautiful, and can real-time monitoring output voltage data, when data is abnormal, can timely alarm prompt, for the on-site power supply equipment safety reliable stable power plays the favorable technical support of the stacked energy storage device.

[0005] The technical scheme adopted by the utility model to solve its technical problems is:

[0006] Stacked energy storage device, including movable shell and element shell, bottom shell, battery pack, inverter and battery management system, control system, power socket, power socket A, power plug, still have voltage detection circuit;The lower end of the element shell is respectively installed with a fixed rod, and the inverter and the battery management system, the control system, the voltage detection circuit and the power socket are installed in the element shell, and the power output end of the inverter is electrically connected with the power input end of the power socket;The movable shell has multiple, and the upper end of the movable shell is respectively provided with a fixed slot, and the lower end of the movable shell is respectively provided with a fixed rod A, and multiple battery packs are respectively installed in multiple movable shells and the bottom shell;The upper end of the bottom shell is provided with a fixed slot A, and the power socket A has multiple, and every two of the multiple power socket A is a group, and the two power socket A of each group is respectively installed in the inner side end of multiple movable shells and the element shell and the bottom shell;The two poles of the battery pack in multiple movable shells and the bottom shell are respectively electrically connected with the two terminal ends of a group of power socket A;The two side ends of the power plug are respectively connected with the power plug, and the two side power plugs of multiple power plugs are respectively inserted into the jack of the power socket A of multiple movable shells and the element shell and the bottom shell;The power input end of the voltage detection circuit is respectively electrically connected with the two poles of the power socket A of the element shell.

[0007] Further, when the two side power plugs of the multiple power plugs are respectively inserted into the jack of the multiple power socket A, it is one of series connection and parallel connection.

[0008] Further, the outer diameter and height of the fixed rod at the lower end of the element shell are respectively less than the inner diameter and height of the fixed slot of the movable shell.

[0009] Further, the outer diameter and height of the fixed rod A at the lower end of the movable shell are respectively less than the inner diameter and height of the fixed slot A of the bottom shell.

[0010] Further, between the bottom shell, the element shell and multiple movable shells, the fixed rod A at the lower end of the upper end movable shell of the adjacent two movable shells is respectively inserted into the fixed slot at the upper end of the lower end movable shell, and the fixed rod at the lower end of the element shell is respectively inserted into the fixed slot at the upper end of the upper end movable shell, and the fixed rod A of the lowermost end movable shell is respectively inserted into the fixed slot A at the upper end of the bottom shell.

[0011] Further, the voltage detection circuit comprises an adjustable resistor, resistors, triodes, an alarm lamp, a positive power input end of the alarm lamp, a first resistor, a first end of the adjustable resistor, a second resistor, a third resistor, a first triode, a second triode, and a second triode.

[0012] Compared with the prior art, the utility model has the beneficial effects that: in the utility model, a plurality of groups of storage batteries are respectively installed in a plurality of movable shells, the number of the movable shells can be conveniently increased or decreased according to the number of the used storage batteries, the movable shell, the element shell and the bottom shell can be effectively combined together through the plug-in mode, the appearance is beautiful, the voltage detection circuit can monitor the data of the output voltage in real time, and the user can be timely warned and prompted to charge when the data is abnormal, thereby playing a favorable technical support for the safe, reliable and stable power supply of the on-site power equipment. Based on the above, the utility model has a good application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be further described below in combination with the drawings and embodiments.

[0014] Figure 1 It is the whole structure schematic diagram of the utility model.

[0015] Figure 2 It is the local structure schematic diagram of the utility model.

[0016] Figure 3 It is the circuit diagram of the utility model. DETAILED DESCRIPTION

[0017] Figure 1 、 2,3 shown, stacked energy storage device, including movable shell 1 and element shell 2, bottom shell 3, battery pack G1 (battery module), inverter 4 and battery management system 5, control system 6, power socket 7, power socket A8, power cord 9, also has voltage detection circuit 10; The lower end of the sealing element shell 2 is respectively welded with a fixed rod 21, the inverter 4 and the battery management system 5, the control system 6, the voltage detection circuit 10, the power socket 7 are installed on the circuit board in the element shell 2, the power input end of the inverter 4 and the power output end of the control system 6 are connected by wires, the power output end of the inverter 4 and the rear end of the power socket 7 are respectively connected by wires, and the jack of the power socket 7 is located outside the rear end opening of the element shell 2; The sealing movable shell 1 has a plurality of, the upper end of the movable shell 1 is respectively provided with a concave fixed groove 101, and the lower end of the movable shell is respectively welded with a fixed rod A102, a plurality of battery packs G1 are respectively installed in a plurality of movable shells 1 and bottom shells 3; The upper end of the bottom shell is respectively provided with a concave fixed groove A31, the power socket A8 has a plurality of, every two of the plurality of power socket A8 is a group, and every two power socket A8 in each group is respectively installed in the left side end of a plurality of movable shells 1 and element shells 2, bottom shells 3, and the jack of the power socket A8 is located outside the left side of a plurality of movable shells 1 and element shells 2, bottom shells 3; The positive and negative poles of the battery pack in the plurality of movable shells 1 and bottom shells 3 are respectively connected to the inner side end of a group of two power socket A8 by wires; The two side ends of the power cord 9 are respectively connected with a power plug 91, and the two side power plugs 91 of the plurality of power cords are respectively inserted into the jack of the power socket A8 of the plurality of movable shells 1 and element shells 2, bottom shells 3, and the inner side two wire ends of the two power socket A8 of the element shell 2 are respectively connected to the power input end resistance R3 of the battery management system 5, the control system 6, the voltage detection circuit and the transistor T1 emitter by wires.

[0018] Figure 1 、 2As shown in FIGS. 3, when the two power plugs 91 of the plurality of power plugs are inserted into the insertion holes of the plurality of power sockets A8, the two power plugs are inserted in series or in parallel. The outer diameter and height of the fixing rods 21 at the lower end of the component shell are slightly smaller than the inner diameter and height of the fixing grooves 101 of the movable shell. The outer diameter and height of the fixing rods A102 at the lower end of the movable shell are slightly smaller than the inner diameter and height of the fixing grooves A31 of the bottom shell. Between the bottom shell 3, the component shell 2, and the plurality of movable shells 1, the four fixing rods A102 at the lower end of the upper movable shell are inserted into the four fixing grooves 101 at the upper end of the lower movable shell, and the four fixing rods 21 at the lower end of the component shell are inserted into the four fixing grooves 101 at the upper end of the upper movable shell. The four fixing rods A102 at the lower end of the lowermost movable shell are inserted into the four fixing grooves A31 at the upper end of the bottom shell. The voltage detection circuit includes an adjustable resistor RP1, resistors R1, R2, and R3, transistors T1 and T2, and an alarm lamp X. The positive power input end of the alarm lamp X is connected to one end of the first resistor R3 and one end of the adjustable resistor RP1. The other end of the adjustable resistor RP1 is connected to one end of the second resistor R1 and one end of the third resistor R2. The other end of the third resistor R2 is connected to the base of the first transistor T1. The collector of the first transistor T1 is connected to the other end of the first resistor R3 and the base of the second transistor T2. The other end of the second resistor R1 is connected to the emitters of the two transistors T1 and T2. The collector of the second transistor T2 is connected to the negative power input end of the alarm lamp X. The power input end of the voltage detection circuit is connected to the two poles of the power socket A in the component shell through wires.

[0019] Figure 1 、 2As shown in Figures 1 and 3, in this new type, multiple battery packs G1 are respectively installed in multiple movable shells 1 and bottom shells 3. The number of movable shells 1 can be easily increased or decreased according to the number of battery packs used. Furthermore, the movable shells 1, component shells 2, and bottom shells 3 can be effectively connected together via a plug-in method, resulting in an aesthetically pleasing appearance. In the series configuration of this new type, a power socket A (connected to the negative terminal of the battery) at the upper end of the bottom shell 3 is plugged into a power cord plug 91. The other end of the power cord plug 91 is plugged into the socket of a power socket A (connected to the positive terminal of the battery) at the lower end of the bottom movable shell 1. A power socket A (connected to the negative terminal of the battery) at the upper end of the bottom movable shell 1 is plugged into a power cord plug 91. The other end of the power cord plug is plugged into the socket of a power socket A (connected to the positive terminal of the battery) at the lower end of the adjacent upper movable shell 1. A power cord plug 91 is inserted into the socket of a power socket A (connected to the negative terminal of the battery) at the upper end of the adjacent movable shell 1... The other end of a power cord plug 91 is inserted into the socket of a power socket A (connected to the positive power input terminal of a related component inside component shell 2) at the lower end of the top movable shell 3. A power cord plug 91 is inserted into a power socket A (connected to the positive terminal of the battery) at the lower end of the bottom shell 3, and the other end of the power cord plug 91 is inserted into a socket at the upper end of power socket A in component shell 2 (connected to the negative power input terminal of a related component inside component shell 2). Through the above, this invention achieves a series power supply mode for the battery packs inside the movable shell and the bottom shell. The energy storage device composed of the battery pack G1 (battery module), inverter 4, battery management system 5, and control system 6 is a very mature existing technology and will not be described further in this application.

[0020] Figure 1 , 2, 3, when the need to move shell, bottom shell inside the battery pack in parallel mode, the two power sockets between the element shell, bottom shell and the movable shell, adjacent movable shell and movable shell are connected in parallel by two power plug lines; thus the new type can realize the movable shell, bottom shell inside the battery pack in parallel power supply mode. In actual situation, the new type is more used in parallel power supply mode. In the new type, when the voltage of the parallel or series connected battery pack G1 is higher than the minimum voltage value (such as higher than 24V), the power output by the battery pack G1 is divided by the adjustable resistor RP1 and the resistor R1, and the resistor R2 is reduced in voltage and current to enter the base of the triode T1 higher than 0.7V, the triode T1 is turned on and the collector output is low to enter the base of the triode T2, the base of the triode T2 is not suitable for positive bias and is cut off, so the collector of the triode T2 does not output low, and the alarm lamp X does not work, which represents that the voltage output by the battery pack G1 is normal. When the voltage of the parallel or series connected battery pack G1 is lower than the minimum voltage value (such as lower than 24V), the power output by the battery pack G1 is divided by the adjustable resistor RP1 and the resistor R1, and the resistor R2 is reduced in voltage and current to enter the base of the triode T1 lower than 0.7V, the triode T1 is cut off and the collector output is no longer low to enter the base of the triode T2, the base of the triode T2 is suitable for positive bias and is turned on, the collector of the triode T2 outputs low, and the alarm lamp X works to send out sound and light signals, which represents that the voltage output by the battery pack G1 is abnormal.

[0021] Figure 1 、 2 , 3, through the above, the new type of multiple battery packs are installed in multiple movable shells, the number of movable shells can be conveniently increased or decreased according to the number of battery packs used, the movable shell and the element shell and the bottom shell can be effectively combined together through plug-in mode, the appearance is beautiful, and the voltage detection circuit can monitor the output voltage data in real time, and can timely alarm and prompt the user to charge when the data is abnormal, which plays a favorable technical support for the safe, reliable and stable power supply of the on-site electrical equipment. Figure 2 In the new type, the resistance R1, R2, R3 is 700Ω, 10K, 100K respectively; the triode T1, T2 is 9013 (NPN); the adjustable resistor RP1 is 47K (3.3K in this embodiment; the higher the resistance value, the higher the voltage of the battery pack, so that the triode T1 is turned on, that is, the detection voltage threshold is set to be relatively large, and the lower the resistance value, the lower the voltage of the battery pack, so that the triode T1 is turned on, that is, the detection voltage threshold is set to be relatively small); the alarm lamp X is a sound and light alarm product with working voltage of 24V (1W).

[0022] The basic principle and main features of the present application and the advantages of the present application are shown and described above, and for those skilled in the art, it is obvious that the present application is limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

[0023] In addition, it should be understood that, although the present application is described in the form of an embodiment, the embodiment does not only contain one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in the embodiments can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A stacked energy storage device comprising a movable case and element case, a bottom case, a battery pack, an inverter and battery management system, a control system, a power outlet, a power outlet A, a power cord, characterized in that, It also has voltage detection circuit; the lower end of the element shell is respectively installed with fixed rod, inverter and battery management system, control system, voltage detection circuit, power socket are installed in element shell, power output end of inverter and power input end of power socket are electrically connected; The movable shell has a plurality of, the upper end of the movable shell is respectively provided with a fixed slot, the lower end of the movable shell is respectively provided with a fixed rod A, a plurality of battery packs are respectively installed in the plurality of movable shells and the bottom shell; The upper end of the bottom shell has a fixed slot A, the power socket A has a plurality of, every two of the plurality of power socket A is a group, and the two power socket A of each group is respectively installed in the plurality of movable shells and the inner side end of the element shell and the bottom shell; The two poles of the battery pack in the plurality of movable shells and the bottom shell are respectively electrically connected with the two terminal ends of a group of power socket A; The two side ends of the power plug are respectively connected with power plug, and the two side power plugs of the plurality of power plug are respectively inserted into the socket of the plurality of power socket A; The power input end of the voltage detection circuit and the two poles of the power socket A of the element shell are respectively electrically connected.

2. The stacked energy storage device of claim 1, wherein, When the two side power plugs of the plurality of power plug are respectively inserted into the socket of the plurality of power socket A, it is one of series connection and parallel connection.

3. The stacked energy storage device of claim 1, wherein, The outer diameter and height of the fixed rod at the lower end of the element shell are respectively less than the inner diameter and height of the fixed slot of the movable shell.

4. The stacked energy storage device of claim 1, wherein, The outer diameter and height of the fixed rod A at the lower end of the movable shell are respectively less than the inner diameter and height of the fixed slot A of the bottom shell.

5. The stacked energy storage device of claim 1, wherein, Between the bottom shell, the element shell and the plurality of movable shells, the fixed rod A at the lower end of the upper end movable shell is respectively inserted into the fixed slot at the upper end of the lower end movable shell, and the fixed rod at the lower end of the element shell is respectively inserted into the fixed slot at the upper end of the upper end movable shell, and the fixed rod A at the lower end of the lower end movable shell is respectively inserted into the fixed slot A at the upper end of the bottom shell.

6. The stacked energy storage device of claim 1, wherein, The voltage detection circuit comprises an adjustable resistor, a resistor, a triode and an alarm lamp electrically connected, the positive power input end of the alarm lamp and one end of the first resistor and one end of the adjustable resistor are connected, the other end of the adjustable resistor and one end of the second resistor and one end of the third resistor are connected, the other end of the third resistor and the base of the first triode are connected, the collector of the first triode and the other end of the first resistor and the base of the second triode are connected, the other end of the second resistor and the emitter of the two triodes are connected, and the collector of the second triode and the negative power input end of the alarm lamp are connected.

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