A waterproof stacked home energy storage battery pack

Abstract

This utility model relates to the field of battery technology, specifically to a waterproof stacked home energy storage battery pack, including a battery pack composed of multiple stacked battery packs and an inverter layer stacked on top of the battery pack and electrically connected to the battery pack. The battery pack includes a battery pack body and a battery pack protrusion detachably installed on the top of the battery pack body. The bottom surface of the battery pack body has an integrally formed battery pack groove. The top surface of the battery pack body is provided with a battery pack plug. The bottom surface of the battery pack body is provided with a battery pack interface at the corresponding position of the battery pack plug.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a waterproof stacked household energy storage battery pack. Background Technology

[0002] Stacked batteries refer to a type of battery composed of multiple battery modules stacked together. Specifically, a casing is set on the battery module, and interfaces and plugs are set on the casing to form battery blocks. The battery blocks are stacked on top of each other, and the plugs and interfaces are connected to connect different battery blocks. As needed, multiple battery blocks can be stacked and connected to form a stacked battery. Home energy storage stacked lithium batteries are a type of stacked battery. They are modular lithium battery systems designed specifically for home energy storage. Their core feature is that multiple standardized battery modules are physically stacked and electrically connected in parallel to achieve flexible capacity expansion. Stacked batteries usually consist of battery modules and a casing covering the battery modules. The casing also has stacking connectors, which are connected to the battery modules via wires. Its installation flexibility and economy are particularly suitable for photovoltaic homes, regions with diverse climates, and areas with unstable power.

[0003] Although the existing technologies mentioned above can solve the corresponding technical problems, they still have certain drawbacks: the existing stacked battery boxes are divided into two types. The protection level of the ordinary box is IP20, which can only be used in indoor environments or placed in sealed outdoor cabinets. The box for outdoor stacked batteries is made of all-aluminum alloy casting, which fully encloses all the stacked battery blocks. Although it has better waterproof performance, the casting process is complex and the cost is very high, which is not conducive to the large-scale promotion of the product. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a waterproof, stacked home energy storage battery pack that is easy to manufacture and has good waterproof properties.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a waterproof stacked household energy storage battery pack, comprising a battery pack composed of multiple stacked battery packs and an inverter layer stacked on top of the battery pack and electrically connected to the battery pack. The battery pack includes a battery pack body and a battery pack protrusion detachably installed on the top of the battery pack body. The bottom surface of the battery pack body has an integrally formed battery pack groove. The top surface of the battery pack body is provided with a battery pack plug. The bottom surface of the battery pack body is provided with a battery pack interface at the corresponding position of the battery pack plug.

[0006] A further improvement is that the upper surface edge of the battery pack body is provided with a waterproof gasket that extends inward to the edge of the battery pack protrusion.

[0007] A further improvement is that: a battery pack upper protrusion is provided on one side edge of the battery pack body, a battery pack lower groove is integrally formed on the bottom edge of the battery pack body, and a connecting bolt is provided on the battery pack upper protrusion that can be connected to the battery pack lower groove.

[0008] A further improvement is that the battery pack connector is equipped with a waterproof ring.

[0009] A further improvement is that a battery pack lifting groove is provided on one side of the battery pack body.

[0010] A further improvement is that the inverter layer includes an inverter body and an inverter interface fixedly disposed on the bottom surface of the inverter body that can be matched with the battery pack plug. The bottom surface of the inverter body is also integrally formed with an inverter groove whose inner wall can fit and match the edge of the battery pack protrusion. A power connection port is also provided on one side of the inverter body.

[0011] A further improvement is that an inverter lifting slot block is provided on the other side of the inverter body.

[0012] A further improvement is that a switching assembly is provided on the front side of the inverter body.

[0013] A further improvement is that an indicator light assembly is provided on the front of the inverter body.

[0014] A further improvement is that a first glue injection groove is provided on the inner wall of the inverter body at the edge of the indicator light group.

[0015] A further improvement is that an air switch is also provided on the side wall of the inverter body, and an air switch cover is movably engaged with the air switch.

[0016] A further improvement is that a second glue injection groove is provided on the inner wall of the inverter body at the edge of the air switch.

[0017] A further improvement is that the bottom edge of the inverter body is integrally formed with an inverter recess.

[0018] A further improvement is that the bottom surface of the battery pack is also provided with a base, which includes a base plate and a base protrusion integrally formed on the base body, the edge of which can fit and cooperate with the edge of the battery pack groove.

[0019] A further improvement is that the base body is also equipped with a sealed plug into which a battery pack interface can be inserted.

[0020] A further improvement is that a covering block for covering the sealing plug is provided on the lower surface of the base body at the corresponding position of the sealing plug.

[0021] A further improvement is that a base protrusion is provided on one side edge of the base body.

[0022] A further improvement is that the bottom surface of the base body is provided with several pillars.

[0023] After adopting the above technical solution, the beneficial effects of this utility model are as follows: When this utility model is in use, the battery pack groove and the battery pack protrusion seal and fit together, so that multiple battery pack bodies can be stacked together. At the same time, the battery pack protrusion lifts the battery pack plug and the battery pack interface. Therefore, when used outdoors, if rainwater splashes on the energy storage battery pack and a small amount of rainwater enters between the tightly fitted battery packs, the rainwater is blocked by the battery pack protrusion, thereby preventing rainwater from directly contacting the contact points of the battery pack plug and the battery pack interface, achieving a better waterproof effect. Moreover, there is no need to equip an additional fully enclosed cast shell, resulting in lower manufacturing costs. Attached Figure Description

[0024] 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 these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of the energy storage battery pack of this utility model; Figure 2 This is a frontal three-dimensional structural diagram of the battery pack of this utility model; Figure 3 This is a three-dimensional structural diagram of the battery pack of this utility model viewed from below; Figure 4 This is a frontal three-dimensional structural schematic diagram of the inverter layer of this utility model; Figure 5 This is a three-dimensional structural diagram of the inverter layer of this utility model, viewed from below. Figure 6 This is an exploded three-dimensional structural diagram of the inverter layer of this utility model; Figure 7 This is a frontal three-dimensional structural diagram of the base of this utility model; Figure 8 This is a three-dimensional structural diagram of the base of this utility model viewed from below. Detailed Implementation

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0027] See Figure 1-8As shown, the technical solution adopted in this specific embodiment is: a waterproof stacked home energy storage battery pack, including a battery pack composed of multiple battery packs 1 stacked together and an inverter layer 2 stacked on top of the battery pack and electrically connected to the battery pack. The battery pack 1 includes a battery pack body 11 and a battery pack protrusion 12 detachably installed on the top of the battery pack body 11. The bottom surface of the battery pack body 11 is integrally formed with a battery pack groove 13. The top surface of the battery pack body 11 is provided with a battery pack plug 14. The bottom surface of the battery pack body 11 is provided with a battery pack interface 15 at the corresponding position of the battery pack plug 14. The inverter layer 2 includes an inverter body 21 and an inverter interface 26 fixedly installed on the bottom surface of the inverter body 21 that can cooperate with the battery pack plug 14. The bottom surface of the main body 21 is integrally formed with an inverter groove 24 whose inner wall can fit and cooperate with the edge of the battery pack protrusion 12. A power connection port 22 is also provided on one side of the inverter main body 21. In use, firstly, the battery is installed in the battery pack 1, and the battery pack plug 14 and battery pack interface 15 of the battery pack main body 11 are connected to the battery through wires. Then, the opening on the top surface of the battery pack main body 11 is closed and covered by the battery pack protrusion 12. The battery pack protrusion 12 can be locked and fixed to the battery pack main body 11 by a thick cap blind hole rivet nut. At this time, a single battery pack 1 is formed. Then, several battery packs are formed according to the needs. In this embodiment, there are three. Then, the first battery pack 1 is placed on a flat surface, and the second battery pack is stacked on it. 1. Align the battery pack groove 13 on the bottom of the second battery pack 1 with the battery pack protrusion 12 on the first battery pack 1, and align the battery pack plug 14 of the first battery pack 1 with the battery pack interface 15 of the second battery pack 1. Connect the two to complete the battery pack connection. After connecting multiple battery packs 1 according to the above steps, install the inverter layer 2 on top. Align the inverter groove 24 of the inverter layer 2 with the battery pack groove 13 on the top of the battery pack body 11, and align the inverter interface 26 at the bottom of the inverter body 21 with the battery pack plug 14 on the top of the battery pack body 11. Press down on the inverter body 21 to install the inverter layer 2 on top of the battery pack and achieve electrical connection. The circuit inside the inverter body 21... This is existing technology and is widely used in battery packs, so it will not be described in detail here. Then, the inverter layer 2 can control the current input to the battery pack and the current output from the battery pack. At the same time, during use, the battery pack protrusion 12 raises the battery pack plug 14 and the battery pack interface 15. So when used outdoors, if rain splashes on the energy storage battery pack and a small amount of rainwater enters between the tightly fitted battery pack 1, the rainwater is blocked by the battery pack protrusion 12, thereby preventing rainwater from directly contacting the contact position of the battery pack plug 14 and the battery pack interface 15, achieving a better waterproof effect. The overall waterproof performance can reach the IP54 level, and there is no need to equip an additional fully enclosed cast shell, resulting in lower manufacturing costs. The upper surface edge of the battery pack body 11 is provided with a waterproof gasket 16 extending inward to the edge of the battery pack protrusion 12. The waterproof gasket 16 is a waterproof silicone sponge with good deformation ability, which will not affect the installation of the battery pack 1. At the same time, it can fully fill the gap between the battery packs 1, thereby further improving the waterproof effect. A battery pack upper protrusion 17 is provided on one side edge of the battery pack body 11, and a battery pack lower groove 18 is integrally formed on the bottom edge of the battery pack body 11. The battery pack upper protrusion 17 is provided with a connecting bolt that can be connected to the battery pack lower groove 18. This facilitates efficient positioning of the battery pack 1 by inserting the battery pack upper protrusion 17 into the battery pack lower groove 18 during battery pack installation, and uses the connecting bolt to fix the battery pack upper protrusion 17 and the battery pack lower groove 18. The battery pack upper protrusion 17 and the battery pack lower groove 18 are integrally formed with openings for the connecting bolts to enter. At the same time, the connecting bolts can be blind hole press-fit nuts, which can effectively seal the openings on the battery pack upper protrusion 17 and the battery pack lower groove 18, making the connection between the battery packs 1 more stable and less likely to detach, without affecting the waterproof effect. The battery pack plug 14 is provided with a waterproof ring 141, which covers the connection part of the battery pack plug 14, which is beneficial to cover the plug core of the battery pack plug 14, thereby further improving the waterproof effect. A battery pack lifting slot 19 is provided on one side of the battery pack body 11, which makes it easier to carry the battery pack 1 by inserting your hand into the battery pack lifting slot 19 when it is being transported. An inverter lifting slot 25 is provided on the other side of the inverter body 21, which makes it easier to move the inverter layer 2 by inserting your hand into the inverter lifting slot 25 during handling. The inverter body 21 has a switch assembly 29 on the front side, which facilitates quick control of the inverter body 21 to work and stop via the switch assembly 29. An indicator light assembly 28 is provided on the front of the inverter body 21, which is convenient for observing the operating status of the battery pack through the indicator light assembly 28; The inner wall of the inverter body 21 is provided with a first glue injection groove 281 on the edge of the indicator light group 28. This facilitates the injection of waterproof glue through the first glue injection groove 281 after the indicator light assembly 28 is installed, thereby improving the waterproofness of the position where the indicator light assembly 28 is installed and preventing water leakage from affecting the normal operation of the inverter body 21. An air switch 27 is also provided on the side wall of the inverter body 21. An air switch cover 271 is movably engaged on the air switch 27, which is conducive to quickly cutting off the circuit when the battery pack is not working properly, thus improving safety. At the same time, the air switch cover 271 is used to cover the air switch 27, so that it is covered when not in use, preventing water from entering and affecting normal use. The inner wall of the inverter body 21 is provided with a second glue injection groove 272 on the edge of the air switch 27. This facilitates the injection of waterproof glue through the second glue injection groove 272 after the air switch 27 is installed, thereby improving the waterproofness of the air switch 27 installation position and preventing water leakage from affecting the normal operation of the inverter body 21. The bottom edge of the inverter body 21 is integrally formed with an inverter lower groove 23, which helps to make the inverter body 21 more securely installed on the battery pack 1 through the inverter lower groove 23 in conjunction with the protrusion 17 on the battery pack, preventing it from loosening and falling off. The bottom of the battery pack is also provided with a base 3, which includes a base plate 31 and a base protrusion 32 integrally formed on the base body 31. The protrusion 32 can fit and cooperate with the edge of the battery pack groove 13. The base 3 helps to raise the battery pack off the ground and avoid the bottom of the battery pack from directly contacting the ground and causing leakage. The base protrusion 32 is used to snap into the battery pack groove 13, thereby enabling quick positioning and installation. At the same time, it prevents water from entering the bottom of the battery pack 1 and causing short circuit and leakage, further improving waterproofing. The base body 31 is also provided with a sealing plug 33 that can be inserted into the battery pack interface 15. This allows the battery pack interface 15 to be sealed by inserting the sealing plug 33 into the battery pack interface 15, preventing water from entering the battery pack interface 15 and causing short circuits or leakage, thus further improving waterproofing. The lower surface of the base body 31 is provided with a covering block 34 covering the sealing plug 33 at the corresponding position of the sealing plug 33, which helps to further improve the sealing of the battery pack interface 15, prevent water from entering the battery pack interface 15 from the bottom net, and further improve the waterproof performance. The base body 31 has a base upper protrusion 36 on one side edge, which is conducive to the base body 31 being inserted into the battery pack lower groove 18 of the battery pack body 11 through the bottom upper protrusion 36, thereby allowing the base body 31 to be better connected to the battery pack and preventing it from falling off. The base body 31 has several support pillars 35 on its bottom surface, which helps to raise the height of the base body 31 and further prevents the battery pack from directly contacting the ground water, thus improving waterproofing.

[0028] The working principle of this utility model is as follows: First, a battery is installed in the battery pack 1. The battery pack plug 14 and battery pack interface 15 of the battery pack body 11 are connected to the battery via wires. Then, the opening on the top surface of the battery pack body 11 is closed and covered by the battery pack protrusion 12. The battery pack protrusion 12 can be locked and fixed to the battery pack body 11 using a thick-cap blind-hole rivet nut. At this point, a single battery pack 1 is formed. Subsequently, several battery packs are formed as needed; in this embodiment, there are three. The first battery pack 1 is then placed on a flat surface, and the second battery pack 1 is stacked on top of it, aligning the battery pack groove 13 on the bottom surface of the second battery pack 1 with the battery pack protrusion 12 of the first battery pack 1. The battery pack plug 14 of the first battery pack 1 is aligned with the battery pack interface 15 of the second battery pack 1, and the two are combined to complete the connection of the battery packs. After connecting multiple battery packs 1 according to the above steps, the inverter layer 2 can be installed on top of it. The inverter groove 24 of the inverter layer 2 is aligned with the battery pack... The inverter layer 2 is installed on top of the battery pack in the battery pack recess 13 on the top of the main body 11. The inverter interface 26 at the bottom of the inverter main body 21 is aligned with the battery pack plug 14 on the top of the battery pack main body 11. The inverter main body 21 is then pressed down to install the inverter layer 2 on top of the battery pack, achieving electrical connection. The circuit components inside the inverter main body 21 are existing technology, widely used in battery packs, and will not be described in detail here. Subsequently, the inverter layer 2 can be used to control the current input to and output from the battery pack. During use, the current is... The battery pack protrusion 12 raises the battery pack plug 14 and battery pack interface 15. When used outdoors, if rainwater splashes onto the energy storage battery pack and a small amount of rainwater enters between the tightly fitted battery packs 1, the rainwater is blocked by the battery pack protrusion 12. This prevents rainwater from directly contacting the contact points of the battery pack plug 14 and battery pack interface 15, achieving a better waterproof effect. The overall waterproof performance can reach the IP54 level, and there is no need to equip an additional fully enclosed cast shell, resulting in lower manufacturing costs.

[0029] This utility model aims to protect the structure of the product. The model numbers of the components are not the focus of this utility model's protection, as they are common technology. Any component on the market that can achieve the functions described above can be used as an option. Therefore, the model numbers and other parameters of the components are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of the various components.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions provided are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents. Any aspects of this utility model not detailed herein are well-known to those skilled in the art.

Claims

1. A waterproof stacked home energy storage battery pack, comprising a battery pack composed of multiple battery packs (1) stacked together and an inverter layer (2) stacked on top of the battery pack and electrically connected to the battery pack, characterized in that: The battery pack (1) includes a battery pack body (11) and a battery pack protrusion (12) that can be detachably installed on the top of the battery pack body (11). The bottom surface of the battery pack body (11) is integrally formed with a battery pack groove (13). The top surface of the battery pack body (11) is provided with a battery pack plug (14). The bottom surface of the battery pack body (11) is provided with a battery pack interface (15) at the corresponding position of the battery pack plug (14).

2. The waterproof stacked home energy storage battery pack according to claim 1, characterized in that: The upper surface edge of the battery pack body (11) is provided with a waterproof gasket (16) extending inward to the edge of the battery pack protrusion (12).

3. A waterproof stacked home energy storage battery pack according to claim 1, characterized in that: The battery pack body (11) has a battery pack upper protrusion (17) on one side edge, and a battery pack lower groove (18) is integrally formed on the bottom edge of the battery pack body (11). The battery pack upper protrusion (17) is provided with a connecting bolt that can be connected to the battery pack lower groove (18).

4. A waterproof stacked home energy storage battery pack according to claim 1, characterized in that: The battery pack plug (14) is provided with a waterproof ring (141).

5. A waterproof stacked home energy storage battery pack according to claim 1, characterized in that: A battery pack lifting groove (19) is provided on one side of the battery pack body (11).

6. A waterproof stacked home energy storage battery pack according to claim 1, characterized in that: The inverter layer (2) includes an inverter body (21) and an inverter interface (26) fixedly disposed on the bottom surface of the inverter body (21) and capable of cooperating with the battery pack plug (14). The bottom surface of the inverter body (21) is also integrally formed with an inverter groove (24) whose inner wall can fit and cooperate with the edge of the battery pack protrusion (12). A power connection port (22) is also provided on one side of the inverter body (21).

7. A waterproof stacked home energy storage battery pack according to claim 6, characterized in that: An inverter lifting slot block (25) is provided on the other side of the inverter body (21).

8. A waterproof stacked home energy storage battery pack according to claim 6, characterized in that: The inverter body (21) has a switch assembly (29) on its front side.

9. A waterproof stacked home energy storage battery pack according to claim 6, characterized in that: The inverter body (21) has an indicator light assembly (28) on its front side.

10. A waterproof stacked home energy storage battery pack according to claim 9, characterized in that: The inverter body (21) has a first glue injection groove (281) on the inner wall of the indicator light assembly (28) at the edge.

11. A waterproof stacked home energy storage battery pack according to claim 6, characterized in that: An air switch (27) is also provided on the side wall of the inverter body (21), and an air switch cover plate (271) is movably engaged on the air switch (27).

12. A waterproof stacked home energy storage battery pack according to claim 11, characterized in that: The inner wall of the inverter body (21) is provided with a second glue injection groove (272) on the edge of the air switch (27).

13. A waterproof stacked home energy storage battery pack according to claim 6, characterized in that: The inverter body (21) has an integrally formed inverter lower groove (23) at the bottom edge.

14. A waterproof stacked home energy storage battery pack according to claim 1, characterized in that: The bottom surface of the battery pack is also provided with a base (3), which includes a base body (31) and a base protrusion (32) integrally formed on the base body (31) whose edge can fit and cooperate with the edge of the battery pack groove (13).

15. A waterproof stacked home energy storage battery pack according to claim 14, characterized in that: The base body (31) is also provided with a sealed plug (33) into which the battery pack interface (15) can be inserted.

16. A waterproof stacked home energy storage battery pack according to claim 15, characterized in that: The lower surface of the base body (31) is provided with a covering block (34) covering the sealing plug (33) at the corresponding position of the sealing plug (33).

17. A waterproof stacked home energy storage battery pack according to claim 14, characterized in that: The base body (31) has a base protrusion (36) on one side edge.

18. A waterproof stacked home energy storage battery pack according to claim 14, characterized in that: The base body (31) has several support pillars (35) on its bottom surface.

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