Energy storage device

Abstract

The utility model provides energy storage equipment. The energy storage equipment comprises a cabinet body internally provided with a battery module and an inverter assembly arranged on the cabinet body, the inverter assembly comprises an inverter electrically connected with the battery module and a mounting rack arranged at the upper end of the cabinet body, the inverter is hooked on the mounting rack and is in threaded connection with the mounting rack, a panel for shielding the inverter is arranged on the mounting rack, and the outer end surface of the panel and the outer end surface of the cabinet body are coplanar. The energy storage equipment not only facilitates the installation and fixation of the inverter, but also facilitates the improvement of the integration degree of the energy storage equipment, the simplification of the installation procedure and the convenience of after-sales maintenance, and meanwhile, the arrangement of the panel can play a role in fixing the inverter on one hand, and also can play a role in decoration on the other hand, so that the energy storage equipment has a very good use effect.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage devices, in particular to an energy storage device. Background Art

[0002] Most of the current household energy storage systems are split-type, with batteries and inverters sold separately, which are easy to expand and flexible to configure. However, most of the existing household energy storage systems are low-voltage systems that are connected by stacking and plugging, which poses a risk of connector damage during installation. In addition, the inverter needs to be connected externally, which makes on-site installation cumbersome and the labor cost of after-sales maintenance high. Utility Model Content

[0003] In view of this, the utility model aims to provide an energy storage device to improve its integration level.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] An energy storage device comprises a cabinet with a battery module installed inside, and an inverter assembly arranged on the cabinet;

[0006] The inverter assembly includes an inverter electrically connected to the battery module, and a mounting frame arranged at the upper end of the cabinet, the inverter is hooked on the mounting frame and screwed to the mounting frame, and the mounting frame is provided with a panel for shielding the inverter, and the outer end surface of the panel is coplanar with the outer end surface of the cabinet.

[0007] Furthermore, a hanging hole is provided on the top of the inverter, and a hook is provided on the mounting frame, and the hook is engaged with the hanging hole; and the bottom of the inverter is screwed to the mounting frame.

[0008] Furthermore, the battery module is provided with a module fixing beam; the cabinet is provided with a box fixing beam, and the module fixing beam is detachably connected to the box fixing beam.

[0009] Furthermore, the module fixing beam is detachably connected to the side of the battery module, and the module fixing beam is in an I-shape.

[0010] Furthermore, an electrical compartment and a module compartment are provided in the cabinet; the electrical compartment is located above the module compartment, and an electrical module is provided in the electrical compartment, and the battery module is accommodated in the module compartment.

[0011] Furthermore, a transverse partition is provided in the module compartment, and the transverse partition divides the module compartment into a plurality of sub-compartment bodies, and each of the sub-compartment bodies is provided with the battery module.

[0012] Furthermore, a wire box is provided on the top of the cabinet, and the wire box is located below the inverter.

[0013] Furthermore, a base is provided at the bottom of the cabinet, and a fixing part for fixing the cabinet on a fixed foundation is provided on the base.

[0014] Furthermore, the fixing portion includes a connecting ear arranged on the base, and the connecting ear is provided with a fixing hole.

[0015] Furthermore, the cabinet includes a front shell and a rear cover that are snap-fitted together; the battery module is arranged in a cavity surrounded by the front shell and the rear cover.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The energy storage device described in the utility model, by arranging the inverter assembly on the cabinet, and making the inverter hooked on the mounting frame and screwed connected to the mounting frame, is not only convenient for the installation and fixation of the inverter, but also conducive to improving the integration level of the energy storage device, simplifying the installation procedure, and facilitating after-sales maintenance. At the same time, the panel arranged on the mounting frame can not only fix the inverter, but also play a decorative role.

[0018] In addition, the mounting holes on the inverter are matched with the hooks on the mounting frame, and the bottom of the inverter is screwed to the mounting frame, which is convenient to install and firm and reliable. The module fixing beams on the battery module and the box fixing beams in the cabinet can facilitate the installation and replacement of the battery module on the cabinet. The module fixing beams can be detachably connected to the side of the battery module, and the module fixing beams are in an I-shape, which is not only conducive to the hoisting of the battery module, but also the design of the I-shaped module fixing beams is conducive to improving the structural strength of the battery module installation.

[0019] Secondly, the electrical compartment set in the cabinet can facilitate the layout and installation of electrical modules. Placing the battery compartment above the module compartment can facilitate the electrical connection between the battery module and the inverter. The transverse partition set in the module compartment can facilitate the layout of multiple battery modules and also facilitate the fixation of the battery modules. The base set at the bottom of the cabinet can facilitate the fixed connection between the cabinet and the fixed foundation, and can play an anti-dumping and earthquake-resistant effect.

[0020] In addition, the fixing part adopts connecting ears and fixing holes, which has the characteristics of simple structure and convenient design and implementation. The cabinet body adopts a front shell and a rear cover connected by buckling, which has a simple structure and is easy to process and manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0022] Figure 1 A schematic structural diagram of the energy storage device according to an embodiment of the utility model from a first perspective;

[0023] Figure 2 A schematic structural diagram of the energy storage device according to an embodiment of the utility model from a second viewing angle;

[0024] Figure 3 An exploded diagram of the energy storage device according to an embodiment of the utility model;

[0025] Figure 4 This is a structural diagram of the energy storage device described in an embodiment of the utility model without a rear cover installed;

[0026] Figure 5 This is a structural diagram of the inverter and the mounting frame in cooperation with each other according to an embodiment of the utility model;

[0027] Figure 6 This is a structural diagram of the battery module and the cabinet in the embodiment of the utility model;

[0028] Figure 7 It is an operation logic diagram of the energy storage device described in the embodiment of the utility model;

[0029] Description of reference numerals:

[0030] 1. Cabinet; 2. Mounting frame; 3. Panel; 4. Inverter; 5. Wire box; 6. Base; 7. Battery module; 8. Electrical module;

[0031] 11. front shell; 12. rear cover; 111. transverse partition; 112. box fixing beam; 21. hanging hole; 61. connecting lug; 611. fixing hole; 41. hook; 71. module fixing beam;

[0032] 10. Electrical warehouse; 20. Module warehouse. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0034] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0036] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0037] This embodiment relates to an energy storage device, which is helpful in improving the integration level of the energy storage device.

[0038] In terms of overall structure, Figures 1 to 4 As shown, the energy storage device of this embodiment includes a cabinet 1 with a battery module 7 installed inside, and an inverter 4 component arranged on the cabinet 1. Among them, the inverter 4 component includes an inverter 4 electrically connected to the battery module 7, and a mounting frame 2 arranged at the upper end of the cabinet 1, the inverter 4 is hooked on the mounting frame 2 and screwed to the mounting frame 2, and a panel 3 for shielding the inverter 4 is provided on the mounting frame 2, and the outer end surface of the panel 3 is coplanar with the outer end surface of the cabinet 1.

[0039] In the above structure, by arranging the inverter 4 assembly on the cabinet 1, and making the inverter 4 hooked on the mounting frame 2 and screwed to the mounting frame 2, it is not only convenient to install and fix the inverter 4, but also conducive to improving the integration degree of the energy storage device, and at the same time, it can simplify the installation procedure and facilitate after-sales maintenance. At the same time, the panel 3 arranged on the mounting frame 2 can not only fix the inverter 4, but also play a decorative role.

[0040] In detail, the top of the inverter 4 is provided with a hanging hole 21, and the mounting frame 2 is provided with a hook 41, and the hook 41 is hung and matched with the hanging hole 21. The bottom of the inverter 4 is screwed and connected to the mounting frame 2. Specifically, there are two hanging holes 21 set on the top of the inverter 4, and correspondingly, there are two hooks 41 set on the mounting frame 2. The stability of the installation of the inverter 4 can be improved by hanging the two hanging holes 21 with the hooks 41. In addition, the bottom of the inverter 4 is provided with a bolt mounting hole, and the corresponding mounting frame 2 is provided with a bolt reserved hole. By passing the bolts through the bolt mounting holes and the bolt reserved holes, the inverter 4 and the mounting frame 2 are screwed together.

[0041] In this embodiment, as a preferred implementation, the mounting frame 2 is screwed to the cabinet 1, and specifically to the front housing 11 in the cabinet 1, so that the mounting frame 2 and the cabinet 1 can be easily assembled. Moreover, the panel 3 and the mounting frame 2 are also screwed to facilitate the assembly of the panel 3 and the mounting frame 2, and the panel 3 is provided to fix the inverter 4 on the one hand, and to provide a decoration on the other hand.

[0042] In this embodiment, a module fixing beam 71 is provided on the battery module 7, and a box fixing beam 112 is provided in the cabinet 1, and the module fixing beam 71 is detachably connected to the box fixing beam 112. The detachable connection between the module fixing beam 71 and the box fixing beam 112 facilitates the installation and replacement of the battery module 7 on the cabinet 1. In specific implementation, the battery module 7 is connected to the module fixing beam 71 by bolts, and then the module fixing beam 71 is fixed to the box fixing beam 112 by bolts.

[0043] It should be noted that, in addition to being screwed, the module fixing beam 71 and the box body fixing beam 112 can also be detachably connected by snapping. For example, a snapping protrusion is provided on the module fixing beam 71, and a snapping hole is provided on the box body fixing beam 112 corresponding to the snapping protrusion. The snapping protrusion and the snapping hole are snapped together to realize the detachable connection between the module fixing beam 71 and the box body fixing beam 112.

[0044] In this embodiment, the module fixing beam 71 is detachably connected to the side of the battery module 7, and the module fixing beam 71 is in an I-shape. The structure of the module fixing beam 71 is not only conducive to the hoisting of the battery module 7, but also the design of the I-shaped module fixing beam 71 is conducive to improving the structural strength of the battery module 7 installation. Figure 6 As shown, there are two module fixing beams 71, and the two module fixing beams 71 are respectively screwed on opposite sides of the battery module 7. This can also improve the stability of the battery module 7 during the hoisting process.

[0045] As a preferred embodiment, the cabinet 1 of this embodiment, such as Figure 2 and Figure 3As shown, it specifically includes a front housing 11 and a rear cover 12 that are connected by snapping, and the battery module 7 is arranged in a cavity surrounded by the front housing 11 and the rear cover 12. Specifically, the front housing 11 and the rear cover 12 are preferably connected by screw connection, which can provide IP65 protection level for the battery module 7 and protect it from certain external impacts.

[0046] See also Figure 4 As shown, in this embodiment, an electrical compartment 10 and a module compartment 20 are provided in the cabinet 1. The electrical compartment 10 is located above the module compartment 20, and an electrical module 8 is provided in the electrical compartment 10, and the above-mentioned battery module 7 is accommodated in the module compartment 20. Among them, the electrical module 8 includes, for example, BMS, main positive relay, pre-charge relay, air switch, fuse, shunt and other high-voltage components. By arranging the electrical compartment 10 above the module compartment 20, the electrical connection between the battery module 7 and the inverter 4 can be facilitated. At the same time, the arrangement of the electrical module 8 in the electrical compartment 10 is also conducive to the isolation of high and low voltages.

[0047] As a further preferred embodiment, in this embodiment, a transverse partition 111 is provided in the module compartment 20, and the transverse partition 111 divides the module compartment 20 into a plurality of sub-compartments, each of which is provided with a battery module 7. Figure 4 As shown, the transverse partition 111 separates the module compartment 20 into two upper and lower compartment bodies, and both compartment bodies are provided with battery modules 7. The provision of the partition plate is not only conducive to the arrangement of multiple battery modules 7, but also conducive to the fixation of the battery modules 7.

[0048] See also Figure 2 , Figure 4 and Figure 5 As shown, in this embodiment, a wiring box 5 is provided on the top of the cabinet 1, and the wiring box 5 is located below the inverter 4. Part of the wiring harness in the electrical compartment 10 and the wiring harness connected to the inverter 4 are connected to the wiring box 5. In specific implementation, an opening is formed on the top of the cabinet 1, and the edge of the opening has a flange. The wiring box 5 is connected and matched with the flange to form a certain height difference, which can effectively prevent water from flowing into the battery housing, thereby achieving an IP55 protection effect.

[0049] In addition, in this embodiment, a base 6 is further provided at the bottom of the cabinet 1, and a fixing portion for fixing the cabinet 1 on a fixed foundation is provided on the base 6. This facilitates the fixed connection between the cabinet 1 and the fixed foundation, and can play an anti-dumping and anti-seismic effect. It should be noted here that the above-mentioned fixed foundation can be, for example, the ground, or other fixed frames.

[0050] In terms of specific structure, the fixing part includes a connecting ear 61 provided on the base 6, and a fixing hole 611 is provided on the connecting ear 61. Figure 1 , Figure 2 and Figure 6As shown, there are a plurality of connecting ears 61 arranged at intervals in the circumferential direction of the base 6, and each connecting ear 61 is provided with a fixing hole 611, which is connected to the fixed base through a connecting piece passing through the fixing hole 611.

[0051] In this embodiment, the battery module 7 is the DC energy storage part of the energy storage device and is used to store electricity. When the external load has a power supply demand, the electrical module 8 can send a discharge instruction to the battery module 7 to ensure the load is powered. Figure 7 As shown, the specific power supply process of the energy storage device in this embodiment is: first through the battery module 7, the total positive and negative are connected to the air switch. After the air switch is closed, the internal control circuit of the PDU is energized, and the self-inspection system is normal. DC current is output to the inverter 4, and the inverter 4 converts DC power into AC power to power household loads.

[0052] The energy storage device of this embodiment is not only convenient for installation and disassembly of the inverter 4, improves the degree of integration, simplifies the installation procedure, and facilitates after-sales maintenance, but the arrangement of the panel 3 can also play a good decorative role and has a good use effect.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy storage device, characterized in that: It includes a cabinet with a battery module installed inside, and an inverter assembly arranged on the cabinet; The inverter assembly includes an inverter electrically connected to the battery module, and a mounting frame arranged at the upper end of the cabinet, the inverter is hooked on the mounting frame and screwed to the mounting frame, and the mounting frame is provided with a panel for shielding the inverter, and the outer end surface of the panel is coplanar with the outer end surface of the cabinet.

2. The energy storage device according to claim 1, characterized in that: A hanging hole is provided on the top of the inverter, and a hook is provided on the mounting frame, and the hook is engaged with the hanging hole; The bottom of the inverter is screwed to the mounting frame.

3. The energy storage device according to claim 1, characterized in that: The battery module is provided with a module fixing beam; The cabinet is provided with a box body fixing beam, and the module fixing beam is detachably connected to the box body fixing beam.

4. The energy storage device according to claim 3, characterized in that: The module fixing beam is detachably connected to the side of the battery module, and the module fixing beam is in an I-shape.

5. The energy storage device according to claim 1, characterized in that: The cabinet is provided with an electrical compartment and a module compartment; The electrical compartment is located above the module compartment, and an electrical module is arranged in the electrical compartment, and the battery module is accommodated in the module compartment.

6. The energy storage device according to claim 5, characterized in that: A transverse partition is arranged in the module compartment, and the transverse partition divides the module compartment into a plurality of sub-compartment bodies, each of which is provided with the battery module.

7. The energy storage device according to claim 1, characterized in that: A wire box is provided on the top of the cabinet, and the wire box is located below the inverter.

8. The energy storage device according to claim 1, characterized in that: A base is provided at the bottom of the cabinet, and a fixing part for fixing the cabinet on a fixed foundation is provided on the base.

9. The energy storage device according to claim 8, characterized in that: The fixing portion comprises a connecting ear arranged on the base, and a fixing hole is arranged on the connecting ear.

10. The energy storage device according to any one of claims 1 to 9, characterized in that: The cabinet comprises a front shell and a rear cover which are connected by buckling; The battery module is arranged in a cavity surrounded by the front shell and the rear cover.

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