Stacked energy storage battery pack structure

Abstract

The utility model provides a stack type energy storage battery pack structure. The stack type energy storage battery pack structure comprises a base assembly; the control box assembly is suspended above the base assembly; the multiple battery pack assemblies are sequentially stacked in the vertical direction, the battery pack assembly arranged at the top end is connected to the control box assembly, and the battery pack assembly arranged at the bottom end is connected to the base assembly; wherein first connecting structures are arranged between the base assembly and the battery pack assemblies and / or between every two adjacent battery pack assemblies and / or between the battery pack assemblies and the control box assembly, and each first connecting structure comprises a box cover and a box body which are sequentially arranged in the vertical direction; the opposite surfaces of the box cover and the box body are respectively provided with a groove and a bulge which are matched with each other, and the bulge can separately extend into the groove, so that the assemblies are stacked or independently arranged. The stacked energy storage battery pack structure solves the technical problem that a traditional stacked energy storage battery pack structure is inconvenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, and in particular to a stacked energy storage battery pack structure. Background Art

[0002] With the increasing demand for renewable energy and clean energy, and the continuous exploration of technology, the combined application of household energy storage and photovoltaic power generation systems has been rapidly developed and has been applied to more and more families. Its advantages are mainly reflected in two aspects. On the one hand, when there is sufficient sunshine during the day, photovoltaic power generation can be used to generate electricity. Part of the electricity generated by photovoltaic power generation is directly used for household appliances, and the excess electricity can be stored in our household energy storage products. On the other hand, at night, you can choose to connect to the grid when the electricity price is relatively low, charge the energy storage products, and then release the electricity in the energy storage to power the household appliances when the electricity price is relatively high. This can save electricity bills to a certain extent. However, some of the existing stacked household energy storage products use bolts for structural connection of the upper and lower layers and use wiring harnesses for electrical connection of the upper and lower layers (for example: between the base and the battery pack, between the battery pack and the battery pack, and between the battery pack and the control box). This structure is cumbersome to install and disassemble, and is not convenient for installation during actual use. Therefore, the quick-plug stacked home storage structure is accepted by more and more people. It has the advantages of easy installation and disassembly. The existing stacked home storage structure is relatively complex, has poor reliability, is inconvenient to install, and is not conducive to cost control. Reasonable optimization and improvement are carried out to design a new structure of a stacked home energy storage battery pack to achieve the purpose of convenient stacking operation, simple process, high reliability and cost control. Utility Model Content

[0003] In view of the deficiencies existing in the prior art, the utility model provides a stacked energy storage battery pack structure to solve the technical problem of the inconvenience of installation of the traditional stacked energy storage battery pack structure in the related art.

[0004] The utility model provides a stacked energy storage battery pack structure, comprising:

[0005] Base assembly;

[0006] A control box assembly is suspended above the base assembly;

[0007] A plurality of battery pack assemblies are stacked in sequence in the up-down direction, the battery pack assembly arranged at the top is connected to the control box assembly, and the battery pack assembly arranged at the bottom is connected to the base assembly;

[0008] Among them, a first connecting structure is provided between the base assembly and the battery pack assembly and / or between two adjacent battery pack assemblies and / or between the battery pack assembly and the control box assembly, and the first connecting structure includes a box cover and a box body arranged in sequence along the up and down directions, and the opposite surfaces of the box cover and the box body are respectively provided with matching grooves and protrusions, and the protrusions can be detachably extended into the grooves so that each assembly can be stacked or independently arranged.

[0009] Furthermore, an arc section is provided at the inner wall corner of the groove; and / or

[0010] When the protrusion extends into the groove, an installation gap is formed between the protrusion and the groove.

[0011] Furthermore, at least one group of opposing surfaces of the protrusion and the groove is provided with a second connection structure, the second connection structure includes a quick-insertion guide box formed on the protrusion, and a slot formed on the groove, and the quick-insertion guide box can be detachably inserted into the slot.

[0012] Furthermore, a plurality of inwardly inclined surfaces are formed on the peripheral surface of the quick-insertion guide box, and when the quick-insertion guide box is inserted into the slot, the inclined surfaces are at least partially in contact with the inner wall of the slot.

[0013] Furthermore, the battery pack assembly and / or the control box assembly is provided with a card slot.

[0014] Furthermore, a handle is provided in the card slot, and the handle is at least partially hidden in the card slot.

[0015] Furthermore, the peripheral surface of the box body is provided with limiting ribs, and the limiting ribs surround the protrusion at intervals to form limiting channels therebetween for avoiding the groove.

[0016] Compared with the prior art, the utility model has the following beneficial effects: it abandons the traditional complex bolt and nut connection structure, adopts the concave-convex clearance matching between the upper and lower layers, has a simple process, is convenient to stack, and has high reliability; the setting of the grooves and protrusions can play a guiding role, and will not damage the plug due to inaccurate alignment between the upper and lower battery pack assemblies, and also plays a protective role for the battery pack assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a battery pack structure in one embodiment of the utility model;

[0018] Figure 2 is a cross-sectional schematic diagram of a battery pack structure in an embodiment of the present utility model;

[0019] Figure 3It is a structural schematic diagram of a battery pack assembly in one embodiment of the utility model;

[0020] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0021] Figure 5 It is a bottom view of a battery pack assembly in one embodiment of the present invention.

[0022] Description of Figure Numbers:

[0023] 1. Base assembly; 2. Control box assembly; 3. Battery pack assembly; 301. Box cover; 3011. Protrusion; 3012. Quick-insert guide box; 3013. Inclined surface; 302. Box body; 3021. Groove; 3022. Slot; 4. Arc segment; 5. Installation gap; 6. Card slot; 7. Handle.

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and beneficial effects of the utility model more clear, the technical solution of the utility model is further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] See also Figures 1 to 5 The utility model provides a stacked energy storage battery pack structure, including:

[0027] Base assembly 1;

[0028] The control box assembly 2 is suspended above the base assembly 1;

[0029] A plurality of battery pack assemblies 3 are stacked in sequence in the up-down direction, wherein the battery pack assembly 3 arranged at the top is connected to the control box assembly 2, and the battery pack assembly 3 arranged at the bottom is connected to the base assembly 1;

[0030] Among them, a first connecting structure is provided between the base assembly 1 and the battery pack assembly 3, between two adjacent battery pack assemblies 3, and between the battery pack assembly 3 and the control box assembly 2. The first connecting structure includes a box cover 301 and a box body 302 arranged in sequence along the up and down directions. The opposite surfaces of the box cover 301 and the box body 302 are respectively provided with matching grooves 3021 and protrusions 3011. The protrusion 3011 can be detachably extended into the groove 3021 so that each assembly can be stacked or independently arranged.

[0031] In this embodiment, the structure includes a base assembly 1 arranged at the bottom and a control box assembly 2 suspended above the base assembly 1. A plurality of battery pack assemblies 3 are stacked in sequence along the up-down direction between the base assembly 1 and the control box assembly 2. The battery pack assembly 3 arranged at the top is connected to the control box assembly 2, and the battery pack assembly 3 arranged at the bottom is connected to the base assembly 1, so that the control box assembly 2, the plurality of battery pack assemblies 3 and the control box assembly 2 can be stacked and connected in sequence along the top, middle and bottom, abandoning the traditional more complicated bolt and nut connection structure, and stacking is convenient; on the other hand, a first connection structure is provided between the base assembly 1 and the battery pack assembly 3 and the two adjacent battery pack assemblies 3, as well as between the battery pack and the control box assembly 2. The first connection structure is arranged in sequence along the up-down direction. The box cover 301 and the box body 302 are arranged in a predetermined manner, and matching grooves 3021 and protrusions 3011 are respectively provided on the opposite surfaces of the box cover 301 and the box body 302, and the protrusion 3011 can be detachably extended into the groove 3021, so that the base assembly 1 and the battery pack assembly 3, the battery pack assembly 3 and the battery pack assembly 3, and the battery pack assembly 3 and the control box assembly 2 can be independently arranged, or the base assembly 1, multiple battery pack assemblies 3 and the control box assembly 2 can be stacked and arranged in sequence, and the clearance between the box cover 301 and the box body 302 is matched, so as to achieve the purpose of assembly, and the clearance between the box cover 301 and the box body 302 is matched during stacking, so as to achieve higher reliability, play a guiding and limiting role, and avoid inaccurate alignment during stacking, tilting or error of the battery pack assembly 3.

[0032] An arc segment 4 is provided at the inner wall corner of the groove 3021;

[0033] When the protrusion 3011 extends into the groove 3021 , an installation gap 5 is constructed between the protrusion 3011 and the groove 3021 .

[0034] In this embodiment, an arc segment 4 is provided at each corner of the inner wall of the groove 3021 (this embodiment takes the four corners as an example of providing the arc segment 4). When the protrusion 3011 extends into the groove 3021, the provision of the arc segment 4 allows an installation gap 5 to be formed between the protrusion 3011 and the groove 3021, so that the battery pack assemblies 3 can pass through the installation gap 5 after being stacked on each other, so that adjacent battery pack assemblies 3 can be smoothly separated from each other.

[0035] At least one group of the opposite surfaces of the protrusion 3011 and the groove 3021 is provided with a second connection structure, and the second connection structure includes a quick-insertion guide box 3012 formed on the protrusion 3011 and a slot 3022 formed in the groove 3021, and the quick-insertion guide box 3012 can be detachably extended into the slot 3022.

[0036] In this embodiment, a second connection structure is provided on the opposite surfaces of the protrusion 3011 and the groove 3021, and the second connection structure includes a quick-plug guide box 3012 formed on the protrusion 3011, and a slot 3022 formed in the groove 3021. When the protrusion 3011 extends into the groove 3021, the quick-plug guide box 3012 can simultaneously extend into the slot 3022. The protrusion 3011 and the groove 3021 form a primary limit guide, and the quick-plug guide box 3012 and the slot 3022 form a secondary limit guide, which ensures accurate alignment during cascade quick-plug connection and does not damage the plug due to inaccurate alignment, thereby also playing a protective role.

[0037] The peripheral surface of the quick-insertion guide box 3012 is formed with a plurality of inwardly inclined surfaces 3013 . When the quick-insertion guide box 3012 is inserted into the slot 3022 , the inclined surfaces 3013 at least partially fit with the inner wall of the slot 3022 .

[0038] In this embodiment, four inwardly inclined inclined surfaces 3013 are formed on the circumference of the quick-insertion guide box 3012. The inclined surfaces 3013 are used to make way for the slot 3022 when the quick-insertion guide box 3012 is inserted into the slot 3022, so that the quick-insertion guide box 3012 can be accurately aligned. When the quick-insertion guide box 3012 is inserted into the slot 3022, the high end of the inclined surface 3013 is suspended in the slot 3022, and the low end of the inclined surface 3013 is partially in contact with the inner wall of the slot 3022. The material of the inclined surface 3013 uses plastic or elastic material so that it can be tightly in contact with the inner wall of the slot 3022.

[0039] The battery pack assembly 3 and the control box assembly 2 are provided with a card slot 6 .

[0040] In this embodiment, a card slot 6 is provided on the peripheral surface of the battery pack assembly 3 and the control box assembly 2 to facilitate separation of the stacked battery pack assembly 3 and the control box.

[0041] A handle 7 is provided in the card slot 6 , and the handle 7 is at least partially hidden in the card slot 6 .

[0042] In this embodiment, a handle 7 is provided in the card slot 6. The handle 7 is an embedded handle 7 hidden in the card slot 6, and the structure is more reliable, beautiful, and easy to carry. At the same time, the two card slots 6 and the handles 7 can be symmetrically arranged on the circumference of the battery pack assembly 3 and the control box assembly 2. When used separately or disassembled, the two handles 7 are lifted up at the same time, so that the protrusion 3011 and the groove 3021, the quick-insert guide box 3012 and the slot 3022 between the upper and lower battery pack assemblies 3 can be separated smoothly.

[0043] The circumferential surface of the box body 302 is provided with limiting ribs, and the limiting ribs surround the protrusion 3011 at intervals to form limiting channels therebetween for avoiding the groove 3021 .

[0044] In this embodiment, limiting ribs (not shown) are provided on the circumferential surface of the box body 302, and the limiting ribs are spaced around the protrusion 3011, and limiting channels for avoiding the groove 3021 are formed therebetween, so as to limit the battery pack assembly 3 circumferentially to prevent it from shifting during transportation.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A stacked energy storage battery pack structure, characterized in that: include: Base assembly; A control box assembly is suspended above the base assembly; A plurality of battery pack assemblies are stacked in sequence in the up-down direction, the battery pack assembly arranged at the top is connected to the control box assembly, and the battery pack assembly arranged at the bottom is connected to the base assembly; Among them, a first connecting structure is provided between the base assembly and the battery pack assembly and / or between two adjacent battery pack assemblies and / or between the battery pack assembly and the control box assembly, and the first connecting structure includes a box cover and a box body arranged in sequence along the up and down directions, and the opposite surfaces of the box cover and the box body are respectively provided with matching grooves and protrusions, and the protrusions can be detachably extended into the grooves so that each assembly can be stacked or independently arranged.

2. A stacked energy storage battery pack structure as claimed in claim 1, characterized in that: The inner wall corners of the groove are provided with arc sections; and / or When the protrusion extends into the groove, an installation gap is formed between the protrusion and the groove.

3. A stacked energy storage battery pack structure as claimed in claim 1, characterized in that: At least one group of the opposite surfaces of the protrusion and the groove is provided with a second connection structure, the second connection structure includes a quick-insertion guide box formed on the protrusion, and a slot formed in the groove, and the quick-insertion guide box can be detachably extended into the slot.

4. A stacked energy storage battery pack structure as claimed in claim 3, characterized in that: The peripheral surface of the quick-insertion guide box is formed with a plurality of inwardly inclined surfaces. When the quick-insertion guide box is inserted into the slot, the inclined surfaces are at least partially in contact with the inner wall of the slot.

5. The stacked energy storage battery pack structure according to claim 1, characterized in that: The battery pack assembly and / or the control box assembly is provided with a card slot.

6. A stacked energy storage battery pack structure as claimed in claim 5, characterized in that: A handle is provided in the card slot, and the handle is at least partially hidden in the card slot.

7. A stacked energy storage battery pack structure as claimed in claim 1, characterized in that: The peripheral surface of the box body is provided with limiting ribs, and the limiting ribs surround the protrusions at intervals to form limiting channels therebetween for avoiding the grooves.

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