Stackable battery pack

Abstract

The invention relates to a stackable battery pack which comprises a rectangular shell and an upper cover, and the upper cover covers the top of the rectangular shell; each end corner of the upper cover is provided with a groove used for stacking connection. Each end corner of the bottom of the rectangular shell is provided with a protruding structure used for stacking connection, and the grooves and the protruding structures are arranged in a matched mode. And when a plurality of battery packs are stacked from top to bottom, in two adjacent battery packs, the convex structure of one battery pack is accommodated in the groove of the other battery pack. According to the invention, the upper cover is provided with the groove, the shell is provided with the corresponding bulge structure, and the battery pack units can be stably stacked together through vertical stacking instead of side-by-side placement without additional support frames or fixing devices, so that the installation space and the hardware cost are saved, and the stability and the safety of the whole system are also remarkably improved; the method has high practicability and economical efficiency, is wide in application range, and can be used as a general product for production and use.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a stackable battery pack. Background Art

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

[0003] With the popularity of renewable energy applications, the use of battery energy storage systems is becoming more and more widespread. In commercial and industrial environments, multiple battery packs usually 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 add additional hardware costs but also take up valuable space. In addition, traditional installation methods lack inherent stability structures, which may cause the battery pack to shift during vibration or movement, posing potential safety hazards. In addition, the display visibility is poor and the user experience is poor. Summary of the invention

[0004] Based on this, an embodiment of the present invention provides a stackable battery pack, aiming to solve the problems that the existing battery pack stacking installation requires a dedicated rack or bracket, which has high cost, occupies a large space, is easy to vibrate or move, and has potential safety hazards.

[0005] To achieve the above-mentioned purpose, the embodiment of the present invention proposes the following technical solution: a stackable battery pack, comprising a rectangular shell and an upper cover, wherein the upper cover covers the top of the rectangular shell; each end corner of the upper cover is provided with a groove for stacking connection; each end corner of the bottom of the rectangular shell is provided with a protrusion structure for stacking connection, and the groove is matched with the protrusion structure;

[0006] When a plurality of the battery packs are stacked from top to bottom, the protrusion structure of one of the two adjacent battery packs is accommodated in the groove of the other battery pack. When stacked, the protrusion structure and the groove engage with each other to provide a stable locking mechanism.

[0007] As a preferred embodiment, the grooves are arranged in one-to-one correspondence with the protruding structures; each of the protruding structures includes a cylindrical portion and a truncated cone portion formed in one piece; the cylindrical portion is connected to the bottom of the rectangular shell, and the truncated cone portion is adapted to the grooves. In this way, the stacking structure can be further fixed to prevent lateral sliding.

[0008] As a preferred embodiment, the height of the truncated cone portion is smaller than the height of the cylindrical portion; the height of the truncated cone portion is equal to the depth of the groove.

[0009] As a preferred embodiment, the groove is integrally formed with the upper cover; the convex structure is integrally formed with the rectangular housing.

[0010] As a preferred embodiment, one side of the upper cover is provided with an inclined surface area inclined towards the rectangular housing; the inclined surface area includes a first inclined area, a second inclined area and a third inclined area which are integrally formed. The first inclined area and the third inclined area are symmetrically arranged on both sides of the second inclined area; the second inclined area is respectively connected to the first inclined area and the third inclined area; a display screen for displaying the working state information of the battery pack is embedded in the second inclined area.

[0011] As a preferred embodiment, the inclination angle of the second inclined area relative to the horizontal plane where the top surface of the rectangular housing is located is 15° to 45°. With this setting, the screen glare caused by direct sunlight can be effectively reduced, thereby effectively improving the readability of the display content of the display screen under various light conditions.

[0012] As a preferred embodiment, both the first inclined area and the third inclined area are triangular inclined areas; the second inclined area is a rectangular inclined area.

[0013] As a preferred embodiment, a plurality of operation buttons for system setting are further arranged in the inclined surface area, and the plurality of operation buttons are respectively connected to the display screen; gaps are arranged between adjacent operation buttons and between the display screen and the operation buttons.

[0014] As a preferred embodiment, the display screen is an LCD display screen or an OLED display screen. Through the display screen, data such as the working state or power information of the battery pack can be displayed.

[0015] As a preferred embodiment, when the plurality of battery packs are stacked from top to bottom, the inclined surface areas of the battery packs form a stepped arrangement from top to bottom. In this way, the display screens of the battery packs after stacking can be visible at the same time.

[0016] As a preferred embodiment, at least two wall hanging members are arranged on one side of the bottom of the rectangular housing away from the inclined surface area. The two wall hanging members are symmetrically arranged, and the wall hanging members are arranged inside the convex structure. With this setting, the battery pack can be stably installed on the wall. When the battery pack is wall-mounted, the display screen of the inclined surface area faces downward, which is convenient for users to view the content displayed on the display screen at the standing position.

[0017] As a preferred embodiment, a battery unit, a control system and a plurality of electronic components are arranged in the rectangular housing.

[0018] Advantages achieved by the present invention: In this application, by providing a groove on the upper cover and a corresponding convex structure on the housing, multiple battery pack units can be stably stacked together through vertical stacking instead of side-by-side placement, without 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. Moreover, by setting an inclined surface area on the upper cover and controlling its setting method, when the battery pack systems are stacked for use, the inclined surface areas of each battery pack system form a stepped layout, allowing users to easily observe the display content of each battery pack system from the front directly, without bending down or changing the viewing angle. In the case of wall-mounted installation, the inclined surface display faces downward, enabling users to directly view the display information in a standing position, improving the convenience of human-computer interaction. At the same time, it can effectively prevent screen glare caused by direct sunlight and improve the readability of the display content under various lighting conditions. The structure of this application is simple, easy to disassemble and assemble, and convenient for maintenance. It takes into account various usage scenarios, improves the versatility and user experience of the product, has high practicality and economy, has a wide range of applications, and can be produced and used as a general-purpose product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

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

[0021] Figure 2 FIG. Figure 1 is a schematic diagram of the structure of the stackable battery pack from another angle;

[0022] Figure 3 FIG. Figure 1 is a schematic diagram of the usage state structure when the stackable battery packs using

[0023] The realization of the objectives, functional features, and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] It should be noted that if there are directional indications (such as up, down, left, right, front, back, top, bottom...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0026] In this application, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0029] Specifically, such as Figures 1 to 3As shown in the figure, the embodiments of the present invention propose the following technical solution: A stackable battery pack, comprising a rectangular housing 10 and an upper cover 20, the upper cover 20 covering the top of the rectangular housing 10; grooves 21 for stacking connection are provided at each corner of the upper cover 20; protrusion structures 11 for stacking connection are provided at each corner of the bottom of the rectangular housing 10, and the grooves 21 are adapted to the protrusion structures 11;

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

[0031] As a preferred embodiment, the grooves 21 and the protrusion structures 11 are provided in one-to-one correspondence; each protrusion structure 11 includes a cylindrical portion 111 and a frustum portion 112 integrally formed; the cylindrical portion 111 is connected to the bottom of the rectangular housing 10, and the frustum portion 112 is adapted to the groove 21. In this way, the stacking 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 portion 112 of one battery pack is received in the groove 21 of the other battery pack. During stacking, a stable locking mechanism is provided by the engagement of the frustum portion 112 and the groove 21.

[0033] As 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. In this way, while enabling the battery packs to be stacked from top to bottom, there is a gap between adjacent battery packs, facilitating the heat dissipation of each battery pack.

[0034] As a preferred embodiment, the grooves 21 are integrally formed with the upper cover 20; the protrusion structures 11 are integrally formed with the rectangular housing 10.

[0035] As a preferred embodiment, one side of the upper cover 20 is provided with an inclined surface area 22 inclined towards the rectangular housing 10; the inclined surface area 22 includes a first inclined area 221, a second inclined area 222 and a third inclined area 223 integrally formed, the first inclined area 221 and the third inclined area 223 are symmetrically arranged on both sides of the second inclined area 222; the second inclined area 222 is respectively connected to the first inclined area 221 and the third inclined area 223; a display screen 30 for displaying the working state information of the battery pack is embedded in the second inclined area 222.

[0036] As a preferred embodiment, the inclination angle of the second inclined area 222 with respect to the horizontal plane where the top surface of the rectangular housing 10 is located is 15° to 45°. With this setting, the screen glare caused by direct sunlight can be effectively reduced, thereby effectively improving the readability of the display content of the display screen 30 under various light conditions.

[0037] In an embodiment of the present application, carrying handles are provided on the left and right sides of the rectangular housing 10; the inclination angle of the display screen 30 with respect to the horizontal plane is 30°. After testing, this angle has the best visual effect within an observation distance of 0.5 meters to 2 meters.

[0038] As a preferred embodiment, both the first inclined area 221 and the third inclined area 223 are triangular inclined areas; the second inclined area 222 is a rectangular inclined area. With this setting, a stepped layout can be formed in the inclined surface area after the battery packs are stacked.

[0039] In the present application, by providing an inclined surface area on the upper cover and controlling its setting method, when the battery packs are stacked and used, the inclined surface areas of the battery packs form a stepped layout, and the user can easily observe the display content of each battery pack from the front without bending down or changing the viewing angle.

[0040] As a preferred embodiment, a plurality of operation buttons 40 for system setting are further provided in the inclined surface area 22, 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] As a preferred embodiment, the display screen 30 is an LCD display screen or an OLED display screen. Through the display screen 30, data such as the working state or power information of the battery pack can be displayed.

[0042] As a preferred embodiment, when a plurality of the battery packs are stacked from top to bottom, the inclined surface areas 22 of the battery packs are arranged in a stepped manner from top to bottom. In this way, the display screens of the battery packs after stacking can be visible at the same time.

[0043] The stacking number of the battery packs can be set according to actual needs, ranging from 2 to 8, and the inclined surface area can ensure that the display content of the battery pack even at the bottom layer is clearly visible.

[0044] As a preferred embodiment, at least two wall hanging members 12 are provided on one side of the bottom of the rectangular housing 10 away from the inclined surface area 22, the two wall hanging members 12 are symmetrically arranged, and the wall hanging members 12 are arranged inside the convex structure 11.

[0045] In this way, in the case of wall-mounted installation, the inclined display screen faces downward, enabling users to directly view the display information in a standing position, which improves the convenience of human-computer interaction; at the same time, it can effectively prevent screen glare caused by direct sunlight and improve the readability of the display content under various lighting conditions.

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

[0047] As a preferred embodiment, a battery unit (not labeled in the figure), a control system (not labeled in the figure), and a plurality of electronic components (not labeled in the figure) are provided inside the rectangular housing 10. In the embodiments of the present application, the installation positions of the battery unit, the control system, and the electronic components can be set according to actual needs, and their connection relationships only need to be consistent with the connection relationships of conventional battery units, control systems, and electronic components.

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

[0049] (1) Improved space utilization: By vertically stacking instead of placing side by side, a large amount of installation space is saved, and more battery pack units can be accommodated in the same floor area. It is measured that the space utilization efficiency can be increased by about 40%-60%.

[0050] (2) Reduced hardware cost: The need for special racks, brackets, or fixing devices is eliminated, directly reducing the installation hardware cost, and on average, the installation cost can be saved by 15%-25%.

[0051] (3) Installation convenience: The installation process is simplified, and no complex fixing operations are required. A single technician can complete the rapid deployment of multiple battery packs, and the installation time is shortened by about 50%.

[0052] (4) Enhanced structural stability: The precise meshing of the protrusions and depressions provides higher structural stability than traditional installation methods. Tests in seismic or vibration environments show that the displacement risk is reduced by more than 80%.

[0053] (5) Transportation convenience: The stacking design facilitates fixation and protection during transportation, reduces the risk of transportation damage, 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. Under full-load operation, the working temperature can be reduced by about 5-8°C, extending 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 flexibility and adaptability of the system.

[0056] (8) Maintenance convenience: Any unit can be taken out separately for maintenance without affecting the overall structural stability, greatly reducing the maintenance difficulty and maintenance time.

[0057] Through simple and ingenious structural innovations, this application solves multiple pain points in the installation and use of battery energy storage systems, has significant economic benefits and practical value, conforms to the development direction of green energy conservation, and has broad market application prospects.

[0058] In the description of this specification, the description referring to terms such as "one embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0059] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard 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 are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A stackable battery pack, characterized in that: It comprises a rectangular shell and an upper cover, wherein the upper cover covers the top of the rectangular shell; each end corner of the upper cover is provided with a groove for stacking connection; each end corner of the bottom of the rectangular shell is provided with a convex structure for stacking connection, and the groove is adapted to be arranged with the convex structure; When a plurality of the battery packs are stacked from top to bottom, the protruding structure of one of the two adjacent battery packs is accommodated in the groove of the other battery pack.

2. The stackable battery pack according to claim 1, characterized in that: The grooves are arranged in one-to-one correspondence with the protruding structures; each of the protruding structures includes a cylindrical portion and a truncated cone portion that are integrally formed; the cylindrical portion is connected to the bottom of the rectangular shell, and the truncated cone portion is adapted to the grooves.

3. The stackable battery pack according to claim 2, characterized in that: The height of the truncated cone portion is smaller than the height of the cylindrical portion; the height of the truncated cone 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 upper cover; the protruding structure is integrally formed with the rectangular shell.

5. The stackable battery pack according to claim 1, characterized in that: A sloped area inclined toward the rectangular shell is provided on one side of the upper cover; the sloped area includes a first inclined area, a second inclined area and a third inclined area which are integrally formed, and the first inclined area and the third inclined area are symmetrically arranged on both sides of the second inclined area; the second inclined area is respectively connected to the first inclined area and the third inclined area; a display screen for displaying the working status information of the battery pack is embedded in the second inclined area.

6. The stackable battery pack according to claim 5, characterized in that: The inclination angle of the second inclined area relative to the horizontal plane where the top surface of the rectangular shell is located is 15° to 45°.

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

8. The stackable battery pack according to claim 5, characterized in that: A plurality of operation buttons for system settings are also provided in the slope area, 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.

9. The stackable battery pack according to claim 5, characterized in that: The display screen is an LCD display screen or an OLED display screen; a battery unit, a control system and a plurality of electronic components are arranged in the rectangular shell.

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

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