Stackable battery pack

Abstract

The application relates to a stackable battery pack, which comprises a rectangular shell and an upper cover, the upper cover covers the top of the rectangular shell, each end corner of the upper cover is provided with a groove for stack connection, each end corner of the bottom of the rectangular shell is provided with a convex structure for stack connection, the groove and the convex structure are matched, when a plurality of the battery packs are vertically stacked, the convex structure of one of the two adjacent battery packs is accommodated in the groove of the other battery pack. The application sets the groove on the upper cover and the corresponding convex structure on the shell, and the multiple battery pack units are stably stacked together through vertical stacking instead of side-by-side placement, without additional support frames or fixing devices, which not only saves the installation space and hardware cost, but also significantly improves the stability and safety of the whole system, has high practicability and economy, and has a wide application range, and can be produced and used as a general product.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a stackable battery pack. Background Technology

[0002] With the in-depth development of new energy industries such as energy storage, photovoltaics, and wind power, various new energy sources are integrating to form complementary energy stations. Complementary energy stations generally include wind power-storage power stations, photovoltaic power-storage power stations, and wind-solar-storage power stations.

[0003] With the increasing prevalence of renewable energy applications, battery energy storage systems are being used more and more widely. In commercial and industrial environments, multiple battery packs typically need to be installed in parallel to provide sufficient energy storage capacity. Traditional battery pack installation methods usually require dedicated racks or brackets, which not only increases additional hardware costs but also occupies valuable space. In addition, traditional installation methods lack an inherent stabilizing structure, which may cause battery pack displacement during vibration or movement, creating potential safety hazards. Moreover, the display visibility is poor, resulting in a subpar user experience. Utility Model Content

[0004] Based on this, the present invention provides a stackable battery pack, which aims to solve the problems of existing battery packs requiring special racks or brackets for stacking and installation, resulting in high costs, large space occupation, easy vibration or displacement, and potential safety hazards.

[0005] To achieve the above objectives, the present invention proposes the following technical solution: a stackable battery pack, comprising a rectangular shell and a top cover, wherein the top cover covers the top of the rectangular shell; each corner of the top cover is provided with a groove for stacking connection; each corner of the bottom of the rectangular shell is provided with a protrusion structure for stacking connection, wherein the groove is adapted to the protrusion structure.

[0006] When multiple battery packs are stacked from top to bottom, in two adjacent battery packs, a protruding structure of one battery pack is accommodated within a recess of the other battery pack. During stacking, the engagement of the protruding structure and the recess provides a stable locking mechanism.

[0007] In a preferred embodiment, the grooves and protrusions are arranged in a one-to-one correspondence; each protrusion includes an integrally formed cylindrical portion and a frustum portion; the cylindrical portion is connected to the bottom of the rectangular shell, and the frustum portion is adapted to fit the groove. This further secures the stacked structure and prevents lateral sliding.

[0008] In a preferred embodiment, the height of the frustum portion is less than the height of the cylindrical portion; the height of the frustum portion is equal to the depth of the groove.

[0009] In a preferred embodiment, the groove is integrally formed with the top cover; the protruding structure is integrally formed with the rectangular shell.

[0010] In a preferred embodiment, one side of the top cover is provided with a sloping area that is inclined toward the rectangular housing; the sloping area includes a first sloping area, a second sloping area and a third sloping area integrally formed, the first sloping area and the third sloping area being symmetrically arranged on both sides of the second sloping area; the second sloping area is connected to the first sloping area and the third sloping area respectively; a display screen for displaying battery pack operating status information is embedded in the second sloping area.

[0011] In a preferred embodiment, the second tilted area has an tilt angle of 15° to 45° relative to the horizontal plane containing the top surface of the rectangular housing. This configuration effectively reduces screen glare caused by direct sunlight, thereby significantly improving the readability of the displayed content under various lighting conditions.

[0012] In a preferred embodiment, both the first inclined region and the third inclined region are triangular inclined regions; the second inclined region is a rectangular inclined region.

[0013] In a preferred embodiment, the inclined area is further provided with a plurality of operation buttons for system settings, and the plurality of operation buttons are respectively connected to the display screen; gaps are provided between adjacent operation buttons and between the display screen and the operation buttons.

[0014] In a preferred embodiment, the display screen is an LCD display screen or an OLED display screen. The display screen can show data such as the battery pack's operating status or battery level information.

[0015] In a preferred embodiment, when multiple battery packs are stacked from top to bottom, the sloping areas of each battery pack are arranged in a stepped manner from top to bottom. This allows the displays of each battery pack to be visible simultaneously after stacking.

[0016] In a preferred embodiment, at least two wall-mounting components are provided on the bottom side of the rectangular housing away from the sloping area. These two wall-mounting components are symmetrically arranged and located inside the protruding structure. This arrangement allows the battery pack to be securely mounted on the wall. When the battery pack is wall-mounted, the display screen on the sloping area faces downwards, making it easy for the user to view the content from a standing position.

[0017] In a preferred embodiment, the rectangular housing contains a battery unit, a control system, and multiple electronic components.

[0018] The beneficial effects achieved by this utility model are as follows: By providing a groove on the top cover and a corresponding protruding structure on the shell, multiple battery pack units can be stably stacked together through vertical stacking rather than side-by-side placement, eliminating the need for additional support frames or fixing devices. This not only saves installation space and hardware costs but also significantly improves the stability and safety of the entire system. Furthermore, by setting a sloping area on the top cover and controlling its setting, the sloping areas of each battery pack system form a stepped layout when stacked, allowing users to easily observe the display content of each battery pack system from directly in front without bending over or changing their viewing angle. In wall-mounted installation, the sloping display screen faces downwards, allowing users to directly view the displayed information from a standing position, improving the convenience of human-computer interaction. At the same time, it effectively prevents screen glare caused by direct sunlight, improving the readability of the displayed content under various lighting conditions. This application has a simple structure, is easy to assemble and disassemble, and is convenient to maintain. It takes into account multiple usage scenarios, improves the versatility of the product and user experience, and has high practicality and economy. It has a wide range of applications and can be produced and used as a general-purpose product. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a stackable battery pack according to an embodiment of the present invention.

[0021] Figure 2 for Figure 1 A schematic diagram of the stackable battery pack from another angle;

[0022] Figure 3 To adopt Figure 1 A schematic diagram of the stackable battery packs in use when they are stacked.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, top, bottom, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0026] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] It should be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] Specifically, such as Figures 1 to 3As shown, the present invention proposes the following technical solution: a stackable battery pack, comprising a rectangular housing 10 and a top cover 20, wherein the top cover 20 covers the top of the rectangular housing 10; each corner of the top cover 20 is provided with a groove 21 for stacking connection; each corner of the bottom of the rectangular housing 10 is provided with a protrusion structure 11 for stacking connection, wherein the groove 21 is adapted to the protrusion structure 11;

[0030] When multiple battery packs are stacked from top to bottom, in two adjacent battery packs, the protrusion 11 of one battery pack is accommodated within the groove 21 of the other battery pack. During stacking, the engagement of the protrusion 11 and the groove 21 provides a stable locking mechanism.

[0031] In a preferred embodiment, the grooves 21 are provided in a one-to-one correspondence with the protrusions 11; each protrusion 11 includes an integrally formed cylindrical portion 111 and a frustum portion 112; the cylindrical portion 111 is connected to the bottom of the rectangular shell 10, and the frustum portion 112 is adapted to fit the groove 21. In this way, the stacked structure can be further fixed to prevent lateral sliding.

[0032] When multiple battery packs are stacked from top to bottom, in two adjacent battery packs, the frustum 112 of one battery pack is received within the recess 21 of the other battery pack. During stacking, the engagement of the frustum 112 and the recess 21 provides a stable locking mechanism.

[0033] In a preferred embodiment, the height of the frustum portion 112 is less than the height of the cylindrical portion 111; the height of the frustum portion 112 is equal to the depth of the groove 21. This allows the battery packs to be stacked from top to bottom while maintaining gaps between adjacent battery packs to facilitate heat dissipation.

[0034] In a preferred embodiment, the groove 21 is integrally formed with the upper cover 20; the protruding structure 11 is integrally formed with the rectangular shell 10.

[0035] In a preferred embodiment, one side of the top cover 20 is provided with a sloping region 22 that is inclined toward the rectangular housing 10; the sloping region 22 includes a first sloping region 221, a second sloping region 222 and a third sloping region 223 integrally formed, the first sloping region 221 and the third sloping region 223 being symmetrically arranged on both sides of the second sloping region 222; the second sloping region 222 is connected to the first sloping region 221 and the third sloping region 223 respectively; a display screen 30 for displaying battery pack operating status information is embedded in the second sloping region 222.

[0036] In a preferred embodiment, the second tilting region 222 has a tilt angle of 15° to 45° relative to the horizontal plane containing the top surface of the rectangular housing 10. This configuration effectively reduces screen glare caused by direct sunlight, thereby significantly improving the readability of the displayed content on the screen 30 under various lighting conditions.

[0037] In one embodiment of this application, the rectangular housing 10 is provided with handling handles on the left and right sides; the display screen 30 is tilted at an angle of 30° relative to the horizontal plane. Tests have shown that this angle provides the best visibility within an observation distance of 0.5 meters to 2 meters.

[0038] In a preferred embodiment, the first inclined region 221 and the third inclined region 223 are both triangular inclined regions; the second inclined region 222 is a rectangular inclined region. This configuration allows the inclined surface area to form a stepped layout after the battery packs are stacked.

[0039] This application creates a stepped layout of the sloping areas on the top cover and controls their arrangement, so that when the battery packs are stacked, the sloping areas of each battery pack form a stepped layout. Users can easily observe the display content of each battery pack from the front without having to bend over or change their viewing angle.

[0040] In a preferred embodiment, the inclined area 22 is also provided with a plurality of operation buttons 40 for system settings, and the plurality of operation buttons 40 are respectively connected to the display screen 30; gaps are provided between adjacent operation buttons 40 and between the display screen 30 and the operation buttons 40.

[0041] In a preferred embodiment, the display screen 30 is an LCD display screen or an OLED display screen. The display screen 30 can display data such as the battery pack's operating status or battery level information.

[0042] In a preferred embodiment, when multiple battery packs are stacked from top to bottom, the sloping areas 22 of each battery pack are arranged in a stepped manner from top to bottom. This allows the displays of each battery pack to be visible simultaneously after stacking.

[0043] The number of battery packs stacked can be set according to actual needs, ranging from 2 to 8, and the sloping area ensures that the display content is clearly visible even in the bottom battery pack.

[0044] In a preferred embodiment, at least two wall-mounting members 12 are provided on the side of the bottom of the rectangular shell 10 away from the inclined area 22. The two wall-mounting members 12 are symmetrically arranged and are located inside the protruding structure 11.

[0045] In this way, when wall-mounted, the angled display screen faces downwards, allowing users to view the information directly from a standing position, thus improving the convenience of human-computer interaction. At the same time, it can effectively prevent screen glare caused by direct sunlight, improving the readability of the displayed content under various lighting conditions.

[0046] The wall-mounted installation height can be flexibly adjusted according to the usage environment. The recommended height is 1.5 meters to 1.8 meters from the ground. Within this height range, the inclined area of ​​the display screen can provide the best viewing angle, and users can clearly see the displayed content by looking up from a standing position.

[0047] In a preferred embodiment, the rectangular housing 10 houses a battery unit (not shown in the figure), a control system (not shown in the figure), and multiple electronic components (not shown in the figure). In this embodiment, the positions of the battery unit, control system, and electronic components can be configured according to actual needs, and their connection relationships can remain consistent with those of conventional battery units, control systems, and electronic components.

[0048] The battery pack structure of this application embodiment has the following significant advantages and effects:

[0049] (1) Improved space utilization: By stacking vertically instead of placing side by side, installation space is significantly saved, allowing more battery pack units to be accommodated within the same floor area. Actual measurements show that space utilization efficiency can be improved by approximately 40%-60%.

[0050] (2) Reduced hardware costs: Eliminates the need for dedicated racks, brackets or fixing devices, directly reducing installation hardware costs, with an average saving of 15%-25% on installation costs.

[0051] (3) Ease of installation: The installation process is simplified, no complicated fixing operations are required, and a single technician can quickly deploy multiple battery packs, reducing the installation time by about 50%.

[0052] (4) Enhanced structural stability: The precise engagement of the protrusions and recesses provides higher structural stability than traditional installation methods. Tests under earthquake or vibration conditions show that the risk of displacement is reduced by more than 80%.

[0053] (5) Convenience of transportation: The stacking design facilitates fixation and protection during transportation, reduces the risk of damage during transportation, and improves logistics efficiency.

[0054] (6) Optimized heat dissipation performance: The heat dissipation auxiliary structure designed at the bottom effectively improves the heat dissipation capacity of the battery pack, which can reduce the operating temperature by about 5-8℃ under full load operation and extend the battery life.

[0055] (7) System expansion flexibility: The modular design allows users to quickly expand or reduce the number of battery packs according to actual needs, improving the system's flexibility and adaptability.

[0056] (8) Ease of maintenance: Any unit can be removed for maintenance without affecting the overall structural stability, which greatly reduces the difficulty and time of maintenance.

[0057] This application solves several pain points in the installation and use of battery energy storage systems through simple yet ingenious structural innovation, and has significant economic benefits and practical value. It is in line with the development direction of green energy conservation and has broad market application prospects.

[0058] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0060] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A stackable battery pack, characterized in that, The device includes a rectangular shell and a top cover, the top cover being fitted onto the top of the rectangular shell; each corner of the top cover is provided with a groove for stacking connection; each corner of the bottom of the rectangular shell is provided with a protrusion structure for stacking connection, the grooves being adapted to the protrusion structures; When multiple battery packs are stacked from top to bottom, in two adjacent battery packs, the protrusion of one battery pack is accommodated in the groove of the other battery pack.

2. The stackable battery pack according to claim 1, characterized in that, The grooves and protrusions are provided in a one-to-one correspondence; each protrusion includes an integrally formed cylindrical portion and a frustum portion; the cylindrical portion is connected to the bottom of the rectangular shell, and the frustum portion is adapted to fit the groove.

3. The stackable battery pack according to claim 2, characterized in that, The height of the frustum portion is less than the height of the cylindrical portion; the height of the frustum portion is equal to the depth of the groove.

4. The stackable battery pack according to claim 1, characterized in that, The groove is integrally formed with the top cover; the protruding structure is integrally formed with the rectangular shell.

5. The stackable battery pack according to claim 1, characterized in that, One side of the top cover is provided with a sloping area that is inclined toward the rectangular shell; the sloping area includes a first sloping area, a second sloping area and a third sloping area integrally formed, the first sloping area and the third sloping area being symmetrically arranged on both sides of the second sloping area; the second sloping area is connected to the first sloping area and the third sloping area respectively; a display screen for displaying battery pack operating status information is embedded in the second sloping area.

6. The stackable battery pack according to claim 5, characterized in that, The second inclined region has an inclination angle of 15° to 45° relative to the horizontal plane containing the top surface of the rectangular shell.

7. The stackable battery pack according to claim 5, characterized in that, The first and third inclined regions are both triangular inclined regions; the second inclined region is a rectangular inclined region.

8. The stackable battery pack according to claim 5, characterized in that, The inclined area is also provided with multiple operation buttons for system settings, and each of the multiple operation buttons is connected to the display screen; gaps are provided between adjacent operation buttons and between the display screen and the operation buttons.

9. The stackable battery pack according to claim 5, characterized in that, The display screen is an LCD or OLED display screen; the rectangular housing contains a battery unit, a control system, and multiple electronic components.

10. The stackable battery pack according to claim 5, characterized in that, When multiple battery packs are stacked from top to bottom, the sloping areas of each battery pack are arranged in a stepped manner from top to bottom.

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