Energy storage power supply

Abstract

To layout a penetration hole for housing a battery cell in a housing cavity of a housing, and connecting the battery cell and an external facility, achieve a close contact between a sealing member and the housing by inserting the other convex part into a concave groove of one of the sealing member and a mounting wall, and effectively prevent water and other external substances from seeping into the housing through a joint part.SOLUTION: The present application discloses an energy storage power supply comprising a plurality of battery cells, a housing, and a sealing member. The battery cell has an electrode and / or an explosion-proof valve. A housing cavity for housing the battery cell is formed inside the housing, the housing has an attachment wall, a fixing structure for fixing the battery cell is formed on one side of the attachment wall located in the housing cavity, a penetration hole is formed at a position corresponding to the fixing structure, and the electrode of the battery cell and / or the explosion-proof valve communicate with the outside of the housing cavity through the penetration hole. The sealing member covers one side of the attachment wall away from the housing cavity to disconnect the battery cell from the outside, a concave groove is installed on one peripheral edge of the sealing member and the attachment wall, a convex part is installed on the other peripheral edge, and the convex part is inserted into the concave groove.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to patents filed in China on August 15, 2024 (application numbers 202411125442.9 and 202421990396.4) and patents filed in China on October 18, 2024 (application numbers 202411399637.2 and 202422424315.0), the disclosures of which earlier applications are incorporated herein by reference in their entireties.

[0002] The present application relates to the field of energy storage technology, and more particularly to energy storage type power supplies. [Background technology]

[0003] As existing energy storage power supplies increase in capacity, they typically have multiple battery cells inside, and these battery cells are typically assembled into a battery assembly, which is then mounted within the housing of the energy storage power supply. Summary of the Invention [Problem to be solved by the invention]

[0004] The present application aims to solve at least one of the technical problems existing in the current technology, and therefore proposes an energy storage power source. [Means for solving the problem]

[0005] The energy storage power supply includes a battery cell, a housing, and a sealing member. The housing has an accommodating cavity for accommodating the battery cell, the housing has a mounting wall, one side of the mounting wall located in the accommodating cavity has a fixing structure for fixing the battery cell, and a through hole is formed at a position corresponding to the fixing structure, the battery cell communicates with the outside of the accommodating cavity through the through hole, the sealing member covers the one side of the mounting wall away from the accommodating cavity to isolate the battery cell from the outside, a recess is formed on the periphery of one of the sealing member and the mounting wall, and a protrusion is formed on the periphery of the other of the sealing member and the mounting wall, the protrusion being fitted into the recess.

[0006] In some embodiments, the groove is filled with adhesive.

[0007] In some embodiments, an elastic sealing member is disposed in the recess, and the protrusion abuts against the elastic sealing member.

[0008] In some embodiments, the sealing member is a cover plate, a mounting groove is formed on one side of the mounting wall away from the receiving cavity, the through hole is formed at the bottom of the mounting groove, the cover plate covers the mounting groove, the recess is formed on the periphery of the mounting groove, and the protrusion is formed on the periphery of the cover plate.

[0009] In some embodiments, the mounting wall and the sealing member form an accommodating space, the electrodes of the battery cells communicate with the accommodating space through the through holes, and a connecting busbar is installed in the accommodating space, electrically connecting with the electrodes of the battery cells.

[0010] In some embodiments, the mounting wall and the sealing member define a receiving space, and the explosion-proof valve communicates with the receiving space through the through hole.

[0011] In some embodiments, a pressure relief passage is further provided in the receiving space, leading to the outside of the receiving cavity or the housing.

[0012] In some implementations, the mounting wall is located at the bottom of the enclosure.

[0013] In some embodiments, the fixing structure is a receiving groove, one end of the battery cell is inserted into the receiving groove, and the through hole is located at the bottom of the receiving groove.

[0014] In some embodiments, a support structure is provided on one of the mounting wall and the sealing member, and the support structure abuts the other of the mounting wall and the sealing member.

[0015] In some embodiments, the support structure is a support post, the support post being installed on one side of the mounting wall and the sealing member, and a support groove being installed on the other side of the mounting wall and the sealing member, and the support post being inserted into the support groove.

[0016] In some embodiments, the energy storage power source further includes a fixed support, which connects with an inner wall of the receiving cavity to fix the battery cells to the fixed structure.

[0017] In some embodiments, the energy storage power source further includes an inverter, the inverter being disposed within the accommodating cavity and electrically connected to the battery cells, the inverter being fixedly disposed on the fixed support.

[0018] The energy storage power supply includes a plurality of battery cells, a housing, and a sealing member.

[0019] The battery cell has electrodes and / or an explosion-proof valve.

[0020] A storage cavity for accommodating the battery cell is formed inside the housing, the housing has a mounting wall, and a fixing structure for fixing the battery cell is formed on one side of the mounting wall located in the storage cavity, and a through hole is formed at a position corresponding to the fixing structure, and the electrode of the battery cell and / or the explosion-proof valve communicate with the outside of the storage cavity via the through hole.

[0021] The sealing member covers one side of the mounting wall away from the accommodating cavity to isolate the battery cell from the outside, and a support structure is installed on one side of the sealing member and the mounting wall, and the support structure abuts the other side of the sealing member and the mounting wall.

[0022] In some embodiments, the support structure is a support post, the support post is installed on one side of the mounting wall and the sealing member, a support groove is installed on the other side of the mounting wall and the sealing member, and the support post abuts against the other side of the mounting wall and the sealing member.

[0023] In some embodiments, a support groove is provided in the other of the mounting wall and the sealing member, and the support post is inserted into the support groove.

[0024] In some embodiments, a fastener is provided on one of the mounting wall and the sealing member, the support structure is a hook, and the fastener is engaged with the hook.

[0025] In some implementations, a reinforcing rib is disposed on the sealing member and the support structure is disposed on the reinforcing rib.

[0026] In some implementations, the mounting wall is located at the bottom of the housing.

[0027] In some embodiments, a recessed groove is formed on the periphery of one of the sealing member and the mounting wall, and a protrusion is formed on the periphery of the other of the sealing member and the mounting wall, and the protrusion is fitted into the recessed groove.

[0028] In some embodiments, the groove is filled with adhesive.

[0029] In some embodiments, an elastic sealing member is disposed in the recess, and the protrusion abuts against the elastic sealing member.

[0030] In some embodiments, the sealing member is a cover plate, a mounting groove is formed on one side of the mounting wall away from the receiving cavity, the through hole is formed at the bottom of the mounting groove, the cover plate covers the mounting groove, the recess is formed on the periphery of the mounting groove, and the protrusion is formed on the periphery of the cover plate.

[0031] In some embodiments, the mounting wall and the sealing member form an accommodating space, the electrodes of the battery cells communicate with the accommodating space through the through holes, and a connecting busbar is installed in the accommodating space, electrically connecting with the electrodes of the battery cells.

[0032] In some embodiments, the mounting wall and the sealing member define a receiving space, and the explosion-proof valve communicates with the receiving space through the through hole.

[0033] In some embodiments, a pressure relief passage is further provided in the receiving space, leading to the outside of the receiving cavity or the housing.

[0034] In some embodiments, the fixing structure is a receiving groove, one end of the battery cell is inserted into the receiving groove, and the through hole is located at the bottom of the receiving groove.

[0035] In some embodiments, the energy storage power source further includes a fixed support, which connects with an inner wall of the receiving cavity to fix the battery cells to the fixed structure.

[0036] In some embodiments, the energy storage power source further includes a fixed support, which connects with an inner wall of the receiving cavity to fix the battery cells to the fixed structure. [Effects of the Invention]

[0037] In this way, in the energy storage power supply according to the present invention, the battery cells are accommodated in an accommodating cavity inside the housing, and through-holes are designed in the mounting wall of the housing for connecting the battery cell electrodes and / or explosion-proof valves to external equipment. By inserting the protrusions formed on one side of the sealing member or the mounting wall into the recesses formed on the other side of the sealing member or the mounting wall, a tight fit between the sealing member and the housing is achieved, effectively preventing water and other external substances from seeping into the housing through the joints.

[0038] Additional aspects and advantages of the present application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present application. [Brief explanation of the drawings]

[0039] The above and / or additional aspects and advantages of the present invention will become more apparent and understandable from the following description of the embodiments in conjunction with the drawings.

[0040] [Figure 1] FIG. 1 is a schematic diagram of an energy storage power supply according to an embodiment of the present application. [Figure 2] FIG. 2 is an exploded view (1) of an energy storage power supply according to an embodiment of the present application. [Figure 3] FIG. 3 is an exploded view (2) of an energy storage power supply according to an embodiment of the present application. [Figure 4] FIG. 4 is a schematic diagram (1) showing that the sealing member covers the housing in the embodiment of the present application. [Figure 5] FIG. 5 is a schematic diagram (2) showing that the sealing member covers the housing in the embodiment of the present application. [Figure 6] FIG. 6 is a schematic diagram of the housing (without the battery cells) of an embodiment of the present application. [Figure 7] FIG. 7 is a schematic diagram of a battery cell according to an embodiment of the present application. [Figure 8] FIG. 8 is a schematic diagram of an enclosure (with battery cells) according to an embodiment of the present application. [Figure 9] FIG. 9 is a schematic diagram of an enlarged portion of the structure of A in FIG. [Figure 10]FIG. 10 is a cross-sectional view of the energy storage power supply taken along line BB in FIG. [Figure 11] FIG. 11 is a schematic diagram of an enlarged portion of the structure of D in FIG. [Figure 12] FIG. 12 is a schematic diagram of an enlarged portion of the structure of C in FIG. [Figure 13] FIG. 13 is an exploded view (3) of the energy storage power supply according to an embodiment of the present application. [Figure 14] FIG. 14 is a schematic diagram of an enlarged portion of the structure of E in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0041] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, where the same or similar reference numerals always refer to the same or similar elements, or elements having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and are only used to interpret the present application, and should not be construed as limitations on the present application.

[0042] In the description of this application, terms such as "center," "vertical," "horizontal," "length," "thickness," "width," "top," "bottom," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," etc., are used to indicate directions or positions based on the directions or positions shown in the drawings. They are used solely for the convenience and simplification of the description of this application and do not expressly or imply that the devices or elements referred to must be positioned in a particular direction or be configured or operate according to a particular direction, and should not be construed as limitations on the scope of protection of the present invention. Furthermore, terms such as "first" and "second" are used for descriptive purposes only and should not be understood to expressly or imply relative importance or the number of technical features. Therefore, technical features defined by "first" and "second" may expressly or imply that one or more of the features are included. In describing the present invention, unless otherwise specified, "plurality" means two or more.

[0043] In this application, unless otherwise specified or limited, the terms "attach," "connect," "couple," and the like should be interpreted broadly, for example, to mean fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or to refer to an internal communication between two elements or a mutual relationship between two elements. Those skilled in the art will be able to understand the specific meaning of the above terms in the present invention depending on the specific situation.

[0044] In this application, unless otherwise specified, when a first feature is located "above" or "below" a second feature, the first feature may be in direct contact with the second feature, or the first feature may be in indirect contact with the second feature via an intermediate medium. Furthermore, when a first feature is located "above," "above," or "on top" of a second feature, the first feature may be located directly above or diagonally above the second feature, or the height of the first feature may be higher than that of the second feature. When a first feature is located "above," "below," or "below" a second feature, the first feature may be located directly below or diagonally below the second feature, or the height of the first feature may be lower than that of the second feature.

[0045] The present disclosure provides many different embodiments or examples for realizing different structures of the present disclosure. To simplify the disclosure, the following describes the configuration and installation of specific examples. Of course, these are merely examples and are not intended to limit the present disclosure. In addition, the present disclosure may repeat reference numerals and / or letters in different examples, and these reference numerals and / or letters are for the purposes of simplicity and clarity and do not, per se, imply any relationship between the various embodiments and / or installations discussed. Furthermore, while the present disclosure provides examples of various specific construction methods and materials, those skilled in the art may envision the application of other construction methods and / or the use of other materials.

[0046] The modular-free battery product structure is an innovative battery pack design that eliminates the traditional battery modularization hierarchy and directly assembles battery cells into the battery pack shell or frame, thereby increasing the energy density of the battery system, reducing weight and cost, and simplifying the battery pack manufacturing and assembly process.

[0047] The structure of non-modular battery products must address the issue of battery pack sealing because the battery cells are directly attached to the shell, leaving them partially or completely exposed. If the sealing is insufficient or the sealing material deteriorates or is damaged, external substances such as water can seep into the housing through the joints of removable components, potentially causing problems such as short circuits and corrosion of the battery cells. The exposed parts of the battery cells are prone to becoming a path for water to seep in.

[0048] In view of the above, as shown in Figures 1-3, an embodiment of the present application proposes an energy storage power supply 100. The energy storage power supply 100 includes a plurality of battery cells 30, a housing 10, and a sealing member 20. The battery cells 30 have electrodes and / or explosion-proof valves 34. A receiving cavity 101 for receiving the battery cells 30 is formed inside the housing 10, the housing 10 has a mounting wall 11, and one side of the mounting wall 11 located in the receiving cavity 101 is formed with a fixing structure for fixing the battery cells 30, and a through-hole 111 is formed at a position corresponding to the fixing structure, and the electrodes and / or explosion-proof valves 34 of the battery cells 30 communicate with the outside of the receiving cavity 101 through the through-hole 111. The sealing member 20 covers one side of the mounting wall 11 away from the accommodating cavity 101 to isolate the battery cells 30 from the outside, and a concave groove is provided on one of the peripheries of the sealing member 20 and the mounting wall 11, and a convex portion is provided on the other periphery of the sealing member 20 and the mounting wall 11, and the convex portion is inserted into the concave groove.

[0049] In this way, in the energy storage power supply 100 according to the present invention, the battery cells 30 are accommodated in the accommodating cavity 101 inside the housing 10, and the mounting wall 11 of the housing 10 is designed with a through-hole 111 for connecting the battery cells 30 to external equipment. By inserting a protrusion formed on one side of the sealing member 20 or the mounting wall 11 into a recess formed on the other side of the sealing member 20 or the mounting wall 11, a tight fit is achieved between the sealing member 20 and the housing 10, effectively preventing water and other external substances from seeping into the housing through the joint.

[0050] Specifically, the energy storage power source 100 is made of synthetic resin, which has low density, high strength and excellent insulating properties, and helps ensure the safety of the battery cells 30 .

[0051] Optionally, in one embodiment, the energy storage power supply 100 can be used as an outdoor power source for users to use outdoors. For example, while a user is camping, the energy storage power supply 100 can be used to power and charge electrical appliances, lamps, mobile phones, tablet PCs, etc.

[0052] Optionally, in one embodiment, the energy storage power supply 100 can be used indoors as an indoor power source. For example, the user can use an external power source to charge the energy storage power supply 100. If a power outage occurs indoors, the user can use the energy storage power supply 100 to power and charge electrical appliances, lamps, mobile phones, tablet PCs, etc.

[0053] The energy storage power supply 100 comprises a battery cell 30, a housing 10, and a sealing member 20. The housing 10 has a cavity 101 formed therein to accommodate the battery cell 30, which provides a stable and safe storage space for the battery cell 30. The housing 10 securely holds the battery cell 30 and other internal elements in place through its internal structure and fastening devices, preventing them from loosening or shifting during transportation and use.

[0054] The sealing member 20 covers the mounting wall 11 of the housing 10 to isolate the mounting wall 11 from the outside, thereby effectively preventing external substances such as water and dust from entering the inside of the housing 10 through the mounting wall 11, and protecting the battery cells 30 and other internal elements from contamination and damage.

[0055] Furthermore, a recess is formed on the periphery of one of the sealing member 20 and the mounting wall 11, and a protrusion is formed on the periphery of the other of the sealing member 20 and the mounting wall 11, and the protrusion is fitted into the recess. The specific form is as follows.

[0056] Referring to FIG. 4, a recess is formed on the periphery of the sealing member 20, and a protrusion is formed on the periphery of the mounting wall 11, which can provide a more stable supporting and fixing effect.

[0057] 5, a protrusion is formed on the periphery of the sealing member 20, and a recess is formed on the periphery of the mounting wall 11, which makes it easier to remove the sealing member 20. In any situation, as long as the protrusion and the recess are reasonably designed and fitted together, a good sealing effect can be achieved.

[0058] The battery cells 30 may be secondary or primary batteries. The battery cells 30 may be lithium-sulfur, sodium, or magnesium batteries. The battery cells 30 may be cylindrical, flat, rectangular, or have other shapes. In this embodiment, the battery cells 30 are depicted as cylindrical. One or more battery cells 30 may be installed in the receiving cavity 101, and the multiple battery cells 30 may be electrically connected in series, parallel, or mixed arrays. Mixed arrays refer to connecting some of the multiple battery cells 30 in series and others in parallel. Each battery cell 30 has two electrodes and an explosion-proof valve 34. The electrodes are located at both ends of the battery cell 30, respectively. One of the electrodes and / or the explosion-proof valve 34 may communicate with the outside of the receiving cavity 101 through a through-hole 111.

[0059] In some embodiments, the groove is filled with adhesive.

[0060] Specifically, if water accumulates on the ground or the ground is wet, moisture may enter the interior through the gap where the protrusion is inserted into the groove. To address this, it is possible to fill the groove with adhesive, which on the one hand bonds and seals the sealing member 20 and the housing 10, and on the other hand, performs a waterproof function.

[0061] The adhesive material must be waterproof, moisture-proof, corrosion-resistant, and insulating, and can be polyurethane or acrylate adhesive. Polyurethane adhesives are versatile adhesives with excellent adhesive performance and water resistance. The molecular structure of polyurethane adhesives contains a large number of carbamate bonds, which give polyurethane adhesives high internal cohesive strength and adhesive strength, enabling them to firmly bond a variety of materials, including metals, plastics, and rubber. In addition, polyurethane adhesives also have excellent water resistance and weather resistance, allowing them to maintain their adhesive properties for long periods of time in humid or harsh environments. Acrylate adhesives also have excellent adhesive performance and waterproofing capabilities. The molecular structure of acrylate adhesives contains a large number of acrylate atomic groups, which give them high reactivity and adhesive strength, allowing them to cure quickly and form strong chemical bonds with the bonded object and surface. Additionally, acrylate adhesives have excellent water resistance and chemical resistance, allowing them to maintain stable adhesive properties underwater or in various chemical media.

[0062] As shown in FIGS. 10-11, in some embodiments, an elastic sealing member 13 is disposed in the recess, and the protrusion abuts against the elastic sealing member 13.

[0063] Specifically, the main function of the elastic sealing member 13 is to provide a sealing effect and prevent external substances such as water and dust from entering the inside of the housing through the gaps, thereby protecting the internal battery cells 30 and other elements from contamination and damage.

[0064] The elastic sealing member 13 is placed in the groove and is in close contact with the wall of the groove, thereby ensuring a tight connection between the sealing member and the housing 10 and improving the reliability of the seal.

[0065] When the protrusions come into contact with the elastic sealing member 13 and the grooves engage with the protrusions, the protrusions pressurize the elastic sealing member 13 in the groove, further deforming it and allowing it to tightly fill the minute gap between the groove and the protrusions. This compressive action not only strengthens the sealing effect but also increases the stability of the connection.

[0066] The elastic sealing member 13 may be made of a material such as rubber or silicone that has good elasticity and aging resistance. These materials maintain stable performance during long-term use and are resistant to aging and hardening.

[0067] As shown in FIG. 2, in some embodiments, the sealing member 20 is a cover plate, and a mounting groove 112 is formed on one side of the mounting wall 11 away from the receiving cavity 101, and a through hole 111 is formed at the bottom of the mounting groove 112. The sealing member 20 covers the mounting groove 112, and a recess is formed around the mounting groove 112, and a protrusion is formed around the sealing member 20.

[0068] Specifically, a recess is formed around the mounting groove 112 of the mounting wall 11, and the shape and size of the recess matches the shape and size of the sealing member 20, allowing the sealing member 20 to be accurately placed in the mounting groove 112, thereby realizing positioning and fixing.

[0069] The bottom of the mounting groove 112 is formed with a through-hole 111 for electrical connection, through which current can be conducted to meet the operating requirements of the battery cell 30 within the housing 10 .

[0070] A plurality of support posts 12 are installed within the housing 10 to provide support and protect the battery cells 30 and other electronic components within the housing from being crushed.

[0071] The protrusions on the periphery of the sealing member 20 naturally align with and fit into the grooves. As the sealing member 20 is further pressed down, the protrusions are pressed into the grooves and deform to a certain extent, thereby forming firm contact with the wall surfaces of the grooves. This contact not only ensures a physical connection between the sealing member 20 and the housing 10, but also enhances the stability and sealing of the connection under the compressive force between the protrusions and the grooves. The tight contact and compressive force between the protrusions and the grooves provides a good sealing effect, effectively preventing external substances such as water and dust from entering the housing 10.

[0072] As shown in FIGS. 1 and 3 , in some implementations, the mounting wall 11 and the sealing member 20 form an accommodating space 40, the electrodes of the battery cells 30 communicate with the accommodating space 40 through the through-holes 111, and the connecting busbars 50 are installed in the accommodating space 40 and electrically connect with the electrodes of the battery cells 30.

[0073] 7-8, the battery cell 30 may be a cylindrical battery cell. The battery cell 30 has a body 31, a first electrode pillar 32, and a second electrode pillar 33. The first electrode pillar 32 and the second electrode pillar 33 are respectively disposed at both ends of the body 31 in the longitudinal direction. The battery cell 30 is vertically arranged in the receiving groove 101, and the vertical direction corresponds to the longitudinal direction of the body 31.

[0074] The connection busbar 50 is a metal strip or metal plate for collecting and distributing current. The connection busbar 50 may be made of copper, aluminum, nickel, or an alloy material. The connection busbar 50 can be fixed in a precise position using a work jig, and then welded to the first electrode post 32 or the second electrode post 33 of the battery cell 30 by laser welding. It is understood that the connection busbar 50 can also be electrically connected to the electrode post of the battery cell 30 by connecting methods such as twisting or pressing.

[0075] When the electrodes of multiple battery cells 30 are connected together via the connecting bus bars 50, an integrated current conduction network is formed, allowing current to flow evenly through each battery cell 30, improving the overall performance and safety of the battery module.

[0076] The energy storage power supply 100 further includes a collection board 60. The collection board 60 is a circuit board specially designed for collecting status information of the battery cells 30. It collects analog signals such as the voltage, current, and temperature of the battery cells 30 through high-precision sensors or measurement circuits and converts them into digital signals for further processing. By monitoring and collecting the status information of the battery cells 30 in real time, the operating status of the battery cells 30 can be accurately determined and appropriate control measures can be taken in a timely manner, thereby preventing potential safety risks such as overcharging, over-discharging, and overheating of the battery cells 30 and improving the service life and performance of the battery cells 30.

[0077] The connecting busbar 50 has a first connecting busbar 501 and a second connecting busbar 502, and the collecting plate 60 has a first collecting plate 601 and a second collecting plate 602. The first collecting plate 601 can be fixed with screws at a position corresponding to the first connecting busbar 501, and the second collecting plate 602 can be fixed at a position corresponding to the second connecting busbar 502. After the collecting plate 60 is fixed, the nickel strip of the first collecting plate 601 can be connected to the first connecting busbar 501 by an electrical connection method such as laser welding, thereby achieving an electrical connection between the first collecting plate 601 and the first connecting busbar 501. The collecting assembly can be used to collect status information of the battery cells 30. The status information of the battery cells 30 may include information such as the voltage, current, and temperature of each battery cell 30.

[0078] As shown in FIG. 3, a sealing ring 70 is provided between the sealing member 20 and the outer wall of the housing 10 to enhance the sealing effect and isolate the connecting busbar 50 from external moisture.

[0079] As shown in FIG. 9, in some embodiments, the mounting wall 11 and the sealing member 20 form a receiving space 40, and the explosion-proof valve communicates with the receiving space 40 through a through hole 111.

[0080] The explosion-proof valve 34 is mounted on the battery cell 30 and communicates with the storage space 40 via the through-hole 111. The main purpose of mounting the explosion-proof valve 34 on the battery cell 30 is to automatically release pressure when the pressure inside the battery cell 30 becomes too high, thereby preventing the battery cell 30 from exploding. When the internal pressure of the battery cell 30 exceeds a set value, the explosion-proof valve 34 can automatically open or burst, allowing the internal gas or liquid to quickly escape from the storage space 40 and reduce the internal pressure of the battery cell 30. As a result, if thermal runaway occurs in the battery cell 30, material ejected from the explosion-proof valve 34 will pass through the through-hole 111 and enter the storage space 40, preventing the spread of thermal runaway to some extent.

[0081] Specifically, an operating battery cell 30 may release gas from its interior, causing an increase in pressure within the battery cell 30. When the pressure becomes too high, the explosion-proof valve 34 may burst, releasing material (gas, liquid, etc.) within the battery cell 30. The explosion-proof valve 34 communicates with the accommodating space 40 via the first through-hole 111, allowing the material released from the explosion-proof valve 34 to enter the accommodating space 40, which then isolates the material released from the explosion-proof valve 34 from the other battery cells 30 in the accommodating cavity 101. This prevents, to some extent, thermal runaway from one battery cell 30 from spreading to the other battery cells 30, improving the safety of the energy storage power source 100.

[0082] In some embodiments, a pressure relief passage is further provided in the receiving space 40 leading to the receiving cavity 101 or to the outside of the housing 10 .

[0083] To ensure further safety, the accommodation space 40 is further provided with a pressure relief passage leading to the accommodation cavity 101 or the outside of the housing 10. This passage allows the gas or liquid in the accommodation space 40 to be smoothly discharged to the outside environment after the explosion-proof valve 34 releases the pressure, preventing it from accumulating in the accommodation space 40 and causing potential danger.

[0084] In some embodiments, a mounting wall 11 is located at the bottom of the housing 10 .

[0085] When positioned at the bottom of the enclosure 10, the mounting wall 11 provides stable support for the battery cells 30 or other components that require mounting. This design helps ensure the stability of the battery cells 30 during operation and reduces the risk of damage caused by vibration or shock.

[0086] By installing the mounting wall 11 at the bottom of the housing 10, on the one hand, the joint formed between the sealing member 20 and the housing 10 becomes less visible, and on the other hand, the gravitational force of the entire product makes the joint between the sealing member 20 and the housing 10 more solid.

[0087] The installation of the mounting wall 11 at the bottom is also related to the heat dissipation design. If the battery cells 30 generate a large amount of heat during operation, the bottom of the housing 10 can be designed with a structure that connects to a heat dissipation plate, heat dissipation holes, or other heat dissipation systems, so that the heat can be effectively dissipated to the external environment.

[0088] As shown in FIG. 8, in some embodiments, the fixing structure is a receiving groove 102, one end of the battery cell 30 is inserted into the receiving groove 102, and a through hole 111 is provided at the bottom of the receiving groove 102.

[0089] Optionally, a plurality of receiving grooves 102 may be provided, and the plurality of receiving grooves 102 may be arranged in a determinant, and the plurality of battery cells 30 may also be arranged in a determinant, thereby arranging the plurality of battery cells 30 in an orderly manner, which helps to improve the space utilization rate of the energy storage power supply 100. When the shape of the receiving grooves 102 matches the shape of the battery cells 30, the battery cells 30 can be more effectively fixed and positioned. As shown in Fig. 6, if the battery cells 30 are cylindrical, the receiving grooves 102 may also be cylindrical accordingly.

[0090] In this way, the receiving groove 102 restricts the battery cell 30, thereby preventing the battery 30 from shaking during use of the energy storage power supply 100 and affecting normal use of the energy storage power supply 100.

[0091] As shown in Figures 8 and 13, in some embodiments, the energy storage power source 100 further includes a fixed support 80 that connects with the inner wall of the receiving cavity 101 to fix the battery cells 30 to a fixed structure.

[0092] Specifically, when the fixing support 80 is installed in the receiving cavity 101 and fixedly connected to the inner wall of the receiving cavity 101, and the fixing support 80 is installed at one end of the battery cell 30 away from the fixing structure, the fixing support 80 can clamp the battery cell 30 in the vertical direction together with the fixing structure, thereby more stably fixing the battery cell 30 in the receiving cavity 101, and the fixing support 80 can further enhance the stability of the battery cell 30.

[0093] In some embodiments, the energy storage power supply 100 further includes an inverter, which is installed within the accommodating cavity 101 and electrically connected to the battery cells 10, and which is fixedly installed on the fixed support 80.

[0094] Specifically, the inverter is one of the core components of the energy storage power supply 100, and installing the inverter in the receiving cavity 101 allows the housing 10 to protect the inverter, and electrically connecting the inverter 16 to the battery cells 30 allows the DC power of the battery cells 30 to be converted into AC power to supply power to electrical appliances that use AC power. Optionally, DC power can also be output from the energy storage power supply 100 to supply power to electrical appliances that use DC power.

[0095] Furthermore, it is possible to mount the inverter 16 on one side of the fixed support 80 away from the battery cells 30, thereby fixing the inverter 16 using the fixed support 80, reducing the number of additional parts required to fix the inverter, and reducing the volume and weight of the energy storage power supply 100 to a certain extent, thereby improving the portability of the energy storage power supply 100 and lowering the manufacturing cost of the energy storage power supply 100.

[0096] It can be understood that the performance of the inverter directly affects the output quality and utilization efficiency of the energy storage power supply 100, so that an inverter with high efficiency, high stability, and excellent heat dissipation performance should be given priority in design and selection. Fixing the inverter to the fixed support 82 ensures that the inverter is stably positioned within the energy storage power supply 100, facilitating heat dissipation and maintenance work.

[0097] As shown in FIGS. 1 and 12, in some embodiments, a support structure is provided on one of the mounting wall 11 and the sealing member 20, and the support structure abuts the other of the mounting wall 11 and the sealing member 20.

[0098] Within the battery module, the sealing member 20 is a large plastic plate, and if the sealing member 20 is fixed only at the periphery, the middle part may collapse or protrude, which will affect the stability and sealing performance of the entire structure of the energy storage power supply 100. To address this issue, a support structure is installed on either the mounting wall 11 or the sealing member 20 to ensure the flatness and stability of the sealing member 20.

[0099] By mounting the support structure on the mounting wall 11 or on the sealing member 20, it is possible for the mounting wall 11 and the sealing member 20 to come into firm contact with each other. When the support structure is mounted on the mounting wall 11, it is necessary to ensure that the support structure does not interfere with the battery cells 30 or other internal elements. When the support structure is mounted on the sealing member 20, it is necessary to design the support structure to fit into a corresponding portion on the mounting wall 11, thereby enabling a tight fit during assembly.

[0100] The support structure can be designed as multiple point supports, column supports, or mesh supports, which distribute and support the weight of the sealing member 20. Point supports are suitable for small models with irregular shapes, providing stable support points at key locations and effectively preventing localized collapse. Point supports can be flexibly designed and precisely adjusted according to the shape and weight distribution of the sealing member 20. By precisely positioning the support points, point supports minimize the impact on the overall appearance and structure of the sealing member 20, maintaining the aesthetics and functionality of the product. However, point supports are limited in their support range and may require relatively high material strength. Column supports are composed of a matrix of multiple cylinders, which have greater structural strength and rigidity and can withstand large pressures and loads. Mesh supports are composed of a grid of multiple interlocking strip supports, which are superior in structural strength, material savings, and heat dissipation, but the fabrication and installation process of mesh supports is relatively complicated.

[0101] As shown in Figures 12-14, in some embodiments, the support structure is a support column 21, and the support column 21 is installed on one side of the mounting wall 11 and the sealing member 20, and a support groove 113 is installed on the other side of the mounting wall 11 and the sealing member 20, and the support column 21 is inserted into the support groove 113.

[0102] In some implementations, the support columns 21 are evenly arranged on the sealing member 20, and the support grooves 113 that mate with the support columns 21 are evenly arranged on the mounting wall 11, so that the support columns 21 and the support grooves 113 abut against each other to provide support, preventing the sealing member 20 from collapsing and applying pressure to the connecting busbars, or the sealing member 20 from deforming and affecting the appearance.

[0103] As shown in Figures 13-14, in some embodiments, reinforcing ribs are provided on the sealing member 20 and the support structure is provided on the reinforcing ribs.

[0104] A reinforcing rib is a structural element added to the interior or exterior of a structure. Reinforcing ribs are usually in the form of plates, strips, or other shapes, and are used to enhance the load-bearing capacity and stability of the original structure.

[0105] The reinforcing ribs protrude from the sealing member toward the housing 10 and have a grid or honeycomb pattern, with no specific shape limitations. For example, referring to FIG. 13 , the reinforcing ribs have a mesh pattern, including a plurality of horizontal reinforcing ribs 23 and a plurality of vertical reinforcing ribs 24. The horizontal reinforcing ribs 23 extend perpendicular to the vertical reinforcing ribs 24, and a support structure is installed at the intersections of the horizontal reinforcing ribs 23 and the vertical reinforcing ribs 24. The horizontal reinforcing ribs 23 extend along the width or short side of the structure and primarily serve to enhance the rigidity and strength of the structure in the horizontal direction. The horizontal reinforcing ribs 23 effectively resist lateral pressure and shear force, preventing excessive deformation or damage of the structure in the horizontal direction. The vertical reinforcing ribs 24 extend along the length or longitudinal direction of the structure and primarily serve to enhance the rigidity and strength of the structure in the vertical direction. The vertical reinforcing ribs 24 can withstand tension or pressure from both ends of the structure, ensuring vertical stability. When the extension direction of the horizontal reinforcing ribs 23 is perpendicular to that of the vertical reinforcing ribs 24, the horizontal reinforcing ribs 23 form a lattice-like structural system together with the vertical reinforcing ribs 24. The lattice-like structural system can more effectively distribute and support loads from various directions, thereby improving the load-bearing capacity and stability of the entire structure.

[0106] Thus, providing the reinforcing ribs 24 on the sealing member 20 increases the rigidity and strength of the sealing member 20, allowing the sealing member 20 to better withstand external forces such as bending and impact. In addition, providing support structures to the reinforcing ribs further increases the load-bearing capacity of these areas, allowing the sealing member 20 to withstand greater weight and pressure.

[0107] In some embodiments, a fastener is provided on one of the mounting wall 11 and the sealing member 20, the support structure is a hook, and the fastener is engaged with the hook.

[0108] Using the latch and hook as a fixed connection method to secure the mounting wall 11 and the sealing member 20 is a convenient and reliable assembly method, allowing the sealing member 20 to be quickly attached to or detached from the energy storage power source 100.

[0109] The fastener, installed on either the mounting wall 11 or the sealing member 20, is a resilient structural component. The fastener has a groove or hole inside for locking the hook. When the fastener engages with the hook, a certain preload is generated, ensuring the stability of the connection.

[0110] The hook is installed on the other side of the sealing member 20 and the mounting wall 11 as part of the support structure. The shape and size of the hook match the locking device, and it can be easily inserted into the groove or hole of the locking device, and after insertion, it is locked under the elastic action of the locking device.

[0111] Using the latch and hook as the secure connection method makes installation and removal of the sealing member 20 very simple and quick, without requiring additional tools or complicated operating procedures.

[0112] In the description herein, the use of terms such as "one embodiment," "some embodiments," "exemplary embodiment," "example," "particular example," or "some examples" refers to the specific features, structures, materials, or characteristics described in the embodiment or example being grouped together in at least one embodiment or example of the present application. In the description herein, references to examples using such terms do not necessarily refer to the same embodiment or example. Additionally, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more examples or representative examples.

[0113] Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is limited by the claims and their equivalents. [Explanation of symbols]

[0114] 100 - energy storage power source, 10 - housing, 101 - accommodation cavity, 102 - accommodation groove, 11 - mounting wall, 111 - through hole, 112 - mounting groove, 113 - support groove, 12 - support pillar, 13 - elastic sealing member, 20 - sealing member, 21 - support pillar, 23 - horizontal reinforcement bar, 24 - vertical reinforcement rib, 30 - battery cell, 31 - main body, 32 - first electrode pillar, 33 - second electrode pillar, 34 - explosion-proof valve, 40 - accommodation space, 50 - connecting busbar, 501 - first connecting busbar, 502 - second connecting busbar, 60 - collecting plate, 601 - first collecting plate, 602 - second collecting plate, 70 - sealing ring, 80 - fixed support.

Claims

1. The battery includes a plurality of battery cells, a housing, and a sealing member; the battery cell has electrodes and / or explosion-proof valves, a housing having a housing cavity for accommodating a battery cell, the housing having a mounting wall, a fixing structure for fixing the battery cell on one side of the mounting wall located in the housing cavity, a through hole formed at a position corresponding to the fixing structure, and the electrode of the battery cell and / or the explosion-proof valve communicating with the outside of the housing cavity via the through hole; The sealing member covers one side of the mounting wall away from the accommodating cavity to isolate the battery cell from the outside, a recessed groove is formed on the periphery of one of the sealing member and the mounting wall, and a protrusion is formed on the periphery of the other of the sealing member and the mounting wall, and the protrusion is inserted into the recessed groove.

1. An energy storage power source comprising:

2. The groove is filled with adhesive; or An elastic sealing member is disposed in the groove, and the protrusion abuts against the elastic sealing member.

2. The energy storage power supply of claim 1.

3. The sealing member is a cover plate, and a mounting groove is formed on one side of the mounting wall away from the receiving cavity, the through hole is formed at the bottom of the mounting groove, the cover plate covers the mounting groove, the recessed groove is formed on the periphery of the mounting groove, and the protrusion is formed on the periphery of the cover plate.

2. The energy storage power supply of claim 1.

4. The mounting wall and the sealing member form an accommodating space, and a connecting busbar is disposed in the accommodating space, and the connecting busbar is electrically connected to the electrode of the battery cell.

2. The energy storage power supply of claim 1.

5. The explosion-proof valve communicates with the accommodation space through the through hole, and a pressure relief passage is further provided in the accommodation space, the pressure relief passage communicating with the accommodation cavity or the outside of the housing.

5. The energy storage power supply of claim 4.

6. the mounting wall is installed on the bottom of the housing, the fixing structure is an accommodating groove, one end of the battery cell is inserted into the accommodating groove, the through hole is installed on the bottom of the accommodating groove, a support structure is installed on one of the mounting wall and the sealing member, and the support structure abuts against the other of the mounting wall and the sealing member; 2. The energy storage power supply of claim 1.

7. the support structure is a support column, the support column is installed on one side of the mounting wall and the sealing member, a support groove is installed on the other side of the mounting wall and the sealing member, and the support column is inserted into the support groove; 7. The energy storage power supply of claim 6.

8. a locking device is provided on one of the sealing member and the mounting wall, the support structure is a hook, the locking device is engaged with the hook, a reinforcing rib is provided on the sealing member, and the support structure is provided on the reinforcing rib; 7. The energy storage power supply of claim 6.

9. a fixing support, the fixing support being connected to an inner wall of the receiving cavity to fix the battery cell to the fixing structure; 2. The energy storage power supply of claim 1.

10. Equipped with an inverter, the inverter is installed in the receiving cavity and electrically connected to the battery cells, and the inverter is fixedly installed on the fixed support; 10. The energy storage power supply of claim 9.

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