Modular energy storage device

Abstract

The utility model discloses a modularization energy storage equipment, including the casing and install multiple electric core in the casing, between two adjacent electric core through the electrically conductive sheet electricity is connected, the casing includes the lower end cover, multiple middle casing, upper end cover from below sequentially connected, between the lower end cover with the bottom most middle casing, between two adjacent middle casing, between the top most middle casing with upper end cover all form the first installation cavity for installing electric core, between the lower end cover, multiple middle casing with upper end cover through multiple connecting rods and be connected, the connecting rod vertical setting. The utility model discloses through setting modularization middle casing, can reduce the mould cost, and the user can according to actual demand, and increase or reduce the number of middle casing flexibly, thereby, can adjust the installation number of electric core, improve the applicability and flexibility of product.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, specifically to a modular energy storage device. Background Technology

[0002] With the rapid development of new energy technologies, energy storage devices are increasingly being used in power systems, communication base stations, and residential energy storage. The core components of energy storage devices typically include a housing that houses the battery cells and an electrical connection system that connects multiple battery cells in series.

[0003] Currently, most energy storage devices on the market use an integrated structure for their casings. This integrated casing fixes a large number of battery cells inside a large box. As a result, the capacity of the integrated casing is fixed and cannot be flexibly adjusted according to actual power demand, leading to limited product specifications and poor applicability. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a modular energy storage device. By setting up a modular middle shell, the cost of molds can be reduced. Users can flexibly increase or decrease the number of middle shells according to actual needs, thereby adjusting the number of battery cells installed and improving the applicability and flexibility of the product.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A modular energy storage device includes a housing and multiple battery cells installed within the housing. Adjacent battery cells are electrically connected via conductive plates. The housing includes a lower end cover, multiple middle shells, and an upper end cover connected sequentially from bottom to top. First mounting cavities for mounting the battery cells are formed between the lower end cover and the bottommost middle shell, between two adjacent middle shells, and between the topmost middle shell and the upper end cover. The front side of each first mounting cavity has a clearance opening to prevent the positive and negative terminals of the battery cells from being exposed, thus facilitating the connection of the conductive plates. The lower end cover, the multiple middle shells, and the upper end cover are connected by multiple vertically arranged connecting rods.

[0007] As a further improvement to the above technical solution, the middle shell is provided with multiple locking blocks, the connecting rod is provided with a locking groove along its length direction, the locking groove is fitted with the locking block, the lower end cover is connected to the bottom of the connecting rod by a first bolt, and the upper end cover is connected to the top of the connecting rod by a second bolt.

[0008] As a further improvement to the above technical solution, the slot is a dovetail groove and the block is a dovetail block.

[0009] As a further improvement to the above technical solution, the top of the lower end cover is provided with a first receiving groove, and the bottom of the upper end cover is provided with a second receiving groove, the first receiving groove and the second receiving groove respectively accommodating the bottom end and the top end of the connecting rod.

[0010] As a further improvement to the above technical solution, the bottom of the lower end cover is provided with a first mounting hole communicating with the first receiving groove, the bottom of the connecting rod is provided with a first threaded hole that engages with the first bolt, the top of the upper end cover is provided with a second mounting hole communicating with the second receiving groove, and the top of the connecting rod is provided with a second threaded hole that engages with the second bolt.

[0011] As a further improvement to the above technical solution, the top of the lower end cover and the middle shell are provided with a number of pins, and the bottom of the upper end cover and the middle shell are provided with a number of pin holes, the pin holes accommodating the insertion of the pins.

[0012] As a further improvement to the above technical solution, a top cover is connected to the top of the upper cover, the top of the top cover is raised, and a number of heat sinks are provided on the top surface of the top cover.

[0013] As a further improvement to the above technical solution, an upper front cover and a lower front cover are provided on the front side of the housing from top to bottom, and both the upper front cover and the lower front cover are used to cover the conductive sheet.

[0014] As a further improvement to the above technical solution, the upper front cover is provided with a second mounting cavity, the second mounting cavity is equipped with a battery management unit, and the front side of the upper front cover is provided with a first cover plate for sealing the second mounting cavity.

[0015] As a further improvement to the above technical solution, the lower front cover is provided with a third mounting cavity, the third mounting cavity is used to install a fire-fighting unit, and the front side of the lower front cover is provided with a second cover plate for sealing the third mounting cavity.

[0016] The beneficial effects of this utility model are as follows: This utility model provides a modular energy storage device. By setting a modular middle shell, the cost of molds can be reduced. Users can flexibly increase or decrease the number of middle shells according to actual needs, thereby adjusting the number of battery cells installed and improving the applicability and flexibility of the product. Moreover, multiple vertically arranged connecting rods provide support for the lower end cover, multiple middle shells, and the upper end cover, making the overall structure of the shell stable and ensuring that the device will not loosen or tilt when multiple middle shells are stacked, thus improving the safety and reliability of the device. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1This is a structural schematic diagram provided by an embodiment of the present utility model;

[0019] Figure 2 This is an exploded view of this utility model;

[0020] Figure 3 yes Figure 2 A schematic diagram of the shell structure;

[0021] Figure 4 yes Figure 3 Exploded view;

[0022] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0023] Figure 6 yes Figure 4 A partial structural diagram.

[0024] Reference numerals: 100-Housing shell, 110-Lower end cover, 111-First receiving groove, 120-Middle shell, 121-Card block, 122-Pin, 123-Pin hole, 130-Upper end cover, 131-Second receiving groove, 140-First mounting cavity, 141-Negative opening, 150-Connecting rod, 151-Card slot, 152-First bolt, 153-Second bolt, 160-Top cover, 161-Heat sink, 170-Upper front cover, 171-Second mounting cavity, 172-First cover plate, 180-Lower front cover, 181-Third mounting cavity, 182-Second cover plate, 200-Battery cell, 300-Conductive sheet. Detailed Implementation

[0025] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0026] Reference Figures 1 to 6 The present invention provides a modular energy storage device, including a housing 100 and a plurality of battery cells 200 installed in the housing 100, wherein two adjacent battery cells 200 are electrically connected by conductive sheets 300.

[0027] Structurally, the housing 100 includes a lower end cover 110, a plurality of middle shells 120, and an upper end cover 130 connected sequentially from bottom to top. A first mounting cavity 140 for mounting the battery cell 200 is formed between the lower end cover 110 and the bottom middle shell 120, between two adjacent middle shells 120, and between the top middle shell 120 and the upper end cover 130. The front side of the first mounting cavity 140 has a clearance opening 141, which is used to prevent the positive and negative poles of the battery cell 200 from being exposed to air so as to facilitate the connection of the conductive sheet 300. The lower end cover 110, the plurality of middle shells 120 and the upper end cover 130 are connected by a plurality of connecting rods 150, which are vertically arranged.

[0028] Understandably, by setting up a modular middle shell 120, mold costs can be reduced. Users can flexibly increase or decrease the number of middle shells 120 according to actual needs, thereby adjusting the number of battery cells 200 installed and improving the applicability and flexibility of the product.

[0029] Furthermore, the vertically arranged connecting rods 150 provide support for the lower end cover 110, the multiple middle shells 120, and the upper end cover 130, making the overall structure of the housing 100 stable and ensuring that the equipment will not loosen or tilt when the multiple middle shells 120 are stacked, thereby improving the safety and reliability of the equipment.

[0030] In some preferred embodiments, the middle shell 120 is provided with a plurality of locking blocks 121, the connecting rod 150 is provided with a locking groove 151 along its length direction, the locking groove 151 is fitted with the locking block 121, the lower end cover 110 is connected to the bottom of the connecting rod 150 by a first bolt 152, and the upper end cover 130 is connected to the top of the connecting rod 150 by a second bolt 153.

[0031] Understandably, during installation, the bottom of the connecting rod 150 is first fixedly connected to the lower end cover 110 using the first bolt 152. Then, the locking blocks 121 on multiple middle shells 120 are sequentially engaged with the slots 151 on the connecting rod 150, allowing the multiple middle shells 120 to stack on the lower end cover 110. Finally, the upper end cover 130 is placed on the top middle shell 120, and the upper end cover 130 is fixedly connected to the top of the connecting rod 150 using the second bolt 153. Therefore, the engagement of the locking blocks 121 and the slots 151 prevents the middle shells 120 from moving horizontally, while the first bolt 152 and the second bolt 153 ensure vertical tightening, making the overall structure more robust. Simultaneously, it enables rapid alignment and installation of the shells 100, simplifying the assembly process and improving assembly efficiency.

[0032] Specifically, the slot 151 is a dovetail groove, and the block 121 is a dovetail block. The dovetail groove and the dovetail block have a self-centering characteristic, which can automatically correct the position during assembly and reduce errors. At the same time, the dovetail structure provides good shear resistance, preventing the middle shell 120 from detaching under force, and further enhancing the stability and safety of multiple middle shells 120 when stacked.

[0033] Furthermore, the top of the lower end cover 110 is provided with a first receiving groove 111, and the bottom of the upper end cover 130 is provided with a second receiving groove 131. The first receiving groove 111 and the second receiving groove 131 respectively receive the bottom and top ends of the connecting rod 150, ensuring the accurate positioning of the connecting rod 150 during assembly and reducing the assembly difficulty.

[0034] Furthermore, the bottom of the lower end cover 110 is provided with a first mounting hole communicating with the first receiving groove 111, the bottom of the connecting rod 150 is provided with a first threaded hole that engages with the first bolt 152, the top of the upper end cover 130 is provided with a second mounting hole communicating with the second receiving groove 131, and the top of the connecting rod 150 is provided with a second threaded hole that engages with the second bolt 153.

[0035] Understandably, when connecting the connecting rod 150 to the lower end cover 110, the bottom end of the connecting rod 150 is first inserted into the first receiving groove 111, and then the screw of the first bolt 152 passes through the first mounting hole, and the screw of the first bolt 152 is screwed into the first threaded hole and fully tightened, thus securing the connecting rod 150 to the lower end cover 110. When connecting the connecting rod 150 to the upper end cover 130, the top end of the connecting rod 150 is first inserted into the second receiving groove 131, and then the screw of the second bolt 153 passes through the second mounting hole, and the screw of the second bolt 153 is screwed into the second threaded hole and fully tightened, thus securing the connecting rod 150 to the upper end cover 130. Therefore, the lower end cover 110 and the upper end cover 130 can be easily removed from the outside, facilitating equipment maintenance.

[0036] In some preferred embodiments, the top of the lower end cover 110 and the middle shell 120 are provided with a plurality of pins 122, and the bottom of the upper end cover 130 and the middle shell 120 are provided with a plurality of pin holes 123, the pin holes 123 accommodating the insertion of the pins 122.

[0037] Understandably, when stacking the lower end cover 110, multiple middle shells 120 and the upper end cover 130, the engagement of the pin 122 and the pin hole 123 can provide mechanical guidance, ensure accurate alignment of each component, prevent misalignment during assembly or use, improve assembly accuracy and efficiency, and further ensure the horizontal stability of each component after connection.

[0038] In some preferred embodiments, the top of the upper cover 130 is connected to a top cover 160, the top of the top cover 160 is raised, and a plurality of heat sinks 161 are provided on the top surface of the top cover 160.

[0039] Understandably, the raised top cover 160 allows rainwater or dust to slide off easily, preventing water or dust accumulation. At the same time, the heat sink 161 on the top of the top cover 160 increases the surface area, promotes heat dissipation through radiation, and prevents the battery cell 200 from overheating during charging and discharging, thereby ensuring the safety of the equipment and extending its lifespan.

[0040] In some preferred embodiments, an upper front cover 170 and a lower front cover 180 are arranged sequentially from top to bottom on the front side of the housing 100. Both the upper front cover 170 and the lower front cover 180 are used to shield the conductive sheet 300.

[0041] Understandably, by covering the front conductive sheet 300 with the upper front cover 170 and the lower front cover 180, personnel can be prevented from accidentally contacting live parts, reducing the risk of electric shock and improving the safety of the equipment. Moreover, by opening the upper front cover 170 or the lower front cover 180 separately, it is convenient to connect and inspect and maintain the conductive sheet 300.

[0042] Furthermore, the upper front cover 170 is provided with a second mounting cavity 171, and a battery management unit (not shown in the attached figure) is installed in the second mounting cavity 171. A first cover plate 172 for sealing the second mounting cavity 171 is provided on the front side of the upper front cover 170.

[0043] Understandably, by installing the battery management unit in the second mounting cavity 171 of the upper front cover 170, parameters such as voltage, current, and temperature of the battery cell 200 can be centrally monitored, enabling intelligent management and protection, and improving equipment safety. Opening the first cover 172 facilitates the adjustment, replacement, or lifting of the battery management unit by staff, reducing downtime.

[0044] Furthermore, the lower front cover 180 is provided with a third mounting cavity 181, in which a fire-fighting unit (not shown in the attached figure) is installed, and a second cover plate 182 for sealing the third mounting cavity 181 is provided on the front side of the lower front cover 180.

[0045] Understandably, the fire suppression unit is installed in the third mounting cavity 181 of the lower front cover 180, which can respond quickly in the event of thermal runaway of the battery cell 200 or a fire, extinguish the fire source, prevent the accident from escalating, and thus improve the safety of the equipment. At the same time, the second cover 182 facilitates regular inspection or replacement of the fire suppression unit.

[0046] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A modular energy storage device, characterized in that, The device includes a housing and multiple battery cells installed within the housing. Adjacent battery cells are electrically connected via conductive plates. The housing includes a lower end cover, multiple middle shells, and an upper end cover connected sequentially from bottom to top. First mounting cavities for mounting the battery cells are formed between the lower end cover and the bottommost middle shell, between two adjacent middle shells, and between the topmost middle shell and the upper end cover. The front side of the first mounting cavity has a clearance opening to prevent the positive and negative terminals of the battery cells from being exposed, thus facilitating the connection of the conductive plates. The lower end cover, the multiple middle shells, and the upper end cover are connected by multiple connecting rods, which are vertically arranged.

2. The modular energy storage device according to claim 1, characterized in that, The middle shell is provided with multiple locking blocks, and the connecting rod is provided with a locking groove along its length direction. The locking groove is fitted with the locking block. The lower end cover is connected to the bottom of the connecting rod by a first bolt, and the upper end cover is connected to the top of the connecting rod by a second bolt.

3. A modular energy storage device according to claim 2, characterized in that, The slot is a dovetail groove, and the block is a dovetail block.

4. A modular energy storage device according to claim 2, characterized in that, The top of the lower end cover is provided with a first receiving groove, and the bottom of the upper end cover is provided with a second receiving groove. The first receiving groove and the second receiving groove respectively receive the bottom end and the top end of the connecting rod.

5. A modular energy storage device according to claim 4, characterized in that, The bottom of the lower end cover is provided with a first mounting hole communicating with the first receiving groove, the bottom of the connecting rod is provided with a first threaded hole that engages with the first bolt, the top of the upper end cover is provided with a second mounting hole communicating with the second receiving groove, and the top of the connecting rod is provided with a second threaded hole that engages with the second bolt.

6. A modular energy storage device according to claim 1, characterized in that, The lower end cover and the top of the middle shell are provided with several pins, and the upper end cover and the bottom of the middle shell are provided with several pin holes, which accommodate the insertion of the pins.

7. A modular energy storage device according to claim 1, characterized in that, The top of the upper cover is connected to a top cover, the top of the top cover is raised, and the top surface of the top cover is provided with several heat sinks.

8. A modular energy storage device according to claim 1, characterized in that, The front side of the housing is provided with an upper front cover and a lower front cover from top to bottom. Both the upper front cover and the lower front cover are used to cover the conductive sheet.

9. A modular energy storage device according to claim 8, characterized in that, The upper front cover is provided with a second mounting cavity, in which a battery management unit is installed, and a first cover plate for sealing the second mounting cavity is provided on the front side of the upper front cover.

10. A modular energy storage device according to claim 8, characterized in that, The lower front cover is provided with a third mounting cavity, the third mounting cavity is installed with a fire-fighting unit, and the front side of the lower front cover is provided with a second cover plate for sealing the third mounting cavity.

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