Energy storage power supply

Abstract

The invention discloses an energy storage power supply. The energy storage power supply comprises a battery cell, a shell and a sealing piece. The battery cell comprises an electrode and / or an anti-explosion valve, a containing cavity for containing the battery cell is formed in the shell, the shell is provided with a mounting wall, a fixing structure for fixing the battery cell is formed on the side, located in the containing cavity, of the mounting wall, a through hole is formed in the corresponding position of the fixing structure, and the electrode and / or the anti-explosion valve of the battery cell are / is communicated with the outside of the containing cavity through the through hole. The sealing element covers one side, far away from the accommodating cavity, of the mounting wall to isolate the battery cell from the outside, a groove is formed in the periphery of one of the sealing element and the mounting wall, a bulge is formed on the periphery of the other one, and the bulge is inserted into the groove. Therefore, the battery cell is accommodated in the accommodating cavity of the shell, and the through hole is formed, so that the battery cell can be connected with external equipment. And the bulge of one of the sealing element and the mounting wall is inserted into the groove of the other one of the sealing element and the mounting wall, so that close fit between the sealing element and the shell is realized, and water or other external substances are effectively prevented from permeating into the shell through the seam.

Description

[0001] Priority information

[0002] This application claims priority and benefits of patent applications with patent application numbers 202411125442.9 and 202421990396.4 filed with the State Intellectual Property Office of China on August 15, 2024, and the entire text of which is incorporated herein by reference. Technical Field

[0003] The present application relates to the field of energy storage technology, and in particular to the design of an energy storage power supply. Background Art

[0004] As the capacity of existing energy storage power supply products increases, they generally have multiple battery cells inside. These battery cells are generally assembled into battery modules and then installed inside the shell of the energy storage power supply. Summary of the invention

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides an energy storage power supply.

[0006] The energy storage power supply of the embodiment of the present application comprises a battery cell, a shell and a seal. A receiving cavity for receiving the battery cell is formed inside the shell, and the shell has a mounting wall, and the mounting wall is located on one side of the receiving cavity and has a fixing structure for fixing the battery cell, and a through hole is formed at a corresponding position of the fixing structure, and the battery cell is connected to the outside of the receiving cavity through the through hole. The seal cover is arranged on the side of the mounting wall away from the receiving cavity to isolate the battery cell from the outside, and a groove is formed on the periphery of one of the seal and the mounting wall, and a protrusion is formed on the periphery of the other, and the protrusion is inserted into the groove.

[0007] In some embodiments, the groove is filled with glue.

[0008] In certain embodiments, an elastic seal is placed in the groove, and the protrusion abuts against the elastic seal.

[0009] In some embodiments, the sealing member is a cover plate, a mounting groove is formed on a side of the mounting wall away from the accommodating cavity, the through hole is formed at the bottom of the mounting groove, the cover plate is covered on the mounting groove, the groove is formed at the periphery of the mounting groove, and the protrusion is formed at the periphery of the cover plate.

[0010] In some embodiments, the mounting wall and the sealing member form a housing space, the electrodes of the battery cell are connected to the housing space through the through holes, the housing space is provided with a bus bar, and the bus bar is electrically connected to the electrodes of the battery cell.

[0011] In certain embodiments, the installation wall and the sealing member form an accommodating space, and the explosion-proof valve is connected to the accommodating space through the through hole.

[0012] In certain embodiments, the accommodating space is further provided with a pressure relief channel communicating with the accommodating cavity or the outside of the shell.

[0013] In some embodiments, the mounting wall is disposed at the bottom of the housing.

[0014] 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 provided at the bottom of the receiving groove.

[0015] In certain embodiments, one of the mounting wall or the sealing member is provided with a support structure, the support structure abutting against the other of the mounting wall or the sealing member.

[0016] In some embodiments, the support structure is a support column, one of the mounting wall or the seal is provided with the support column, the other of the mounting wall or the seal is provided with a support groove, and the support column is inserted into the support groove.

[0017] In some embodiments, the energy storage power supply comprises:

[0018] A fixing bracket is connected to the inner wall of the accommodating cavity to fix the battery core to the fixing structure.

[0019] In some embodiments, the energy storage power supply comprises:

[0020] An inverter is disposed in the accommodating cavity and electrically connected to the battery core, and the inverter is fixedly disposed on the fixing bracket.

[0021] The energy storage power supply of the embodiment of the present application includes:

[0022] A plurality of battery cells, each of which comprises electrodes and / or explosion-proof valves;

[0023] A housing, wherein a housing cavity for accommodating a battery cell is formed inside the housing, the housing has a mounting wall, the mounting wall is located on one side of the housing cavity and is formed with a fixing structure for fixing the battery cell, a through hole is formed at a corresponding position of the fixing structure, and the electrode and / or the explosion-proof valve of the battery cell are connected to the outside of the housing cavity through the through hole;

[0024] A seal, wherein the seal cover is arranged on a side of the installation wall away from the accommodating cavity to isolate the battery cell from the outside, and one of the seal and the installation wall is provided with a supporting structure, and the supporting structure abuts against the other of the installation wall or the seal.

[0025] In some embodiments, the supporting structure is a supporting column, one of the mounting wall or the sealing member is provided with the supporting column, the other of the mounting wall or the sealing member is provided with a supporting groove, and the supporting column is supported against the other of the mounting wall or the sealing member.

[0026] In certain embodiments, the other of the mounting wall or the sealing member is provided with a supporting groove, and the supporting column is inserted into the supporting groove.

[0027] In certain embodiments, a buckle is provided on one of the seal or the mounting wall, the supporting structure is a hook, and the buckle is connected to the hook by a clamping action.

[0028] In some embodiments, the sealing member is provided with reinforcing ribs, and the supporting structure is provided on the reinforcing ribs.

[0029] In some embodiments, the mounting wall is disposed at the bottom of the housing.

[0030] In certain embodiments, a 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, and the protrusion is inserted into the groove.

[0031] In some embodiments, the groove is filled with glue.

[0032] In certain embodiments, an elastic seal is placed in the groove, and the protrusion abuts against the elastic seal.

[0033] In some embodiments, the seal is a cover plate, a mounting groove is formed on the side of the mounting wall away from the accommodating cavity, the through hole is formed at the bottom of the mounting groove, the seal covers the mounting groove, a groove is formed around the mounting groove, and a protrusion is formed around the seal.

[0034] In some embodiments, the mounting wall and the sealing member form a housing space, the electrodes of the battery cell are connected to the housing space through the through holes, the housing space is provided with a bus bar, and the bus bar is electrically connected to the electrodes of the battery cell.

[0035] In certain embodiments, the installation wall and the sealing member form an accommodating space, and the explosion-proof valve is connected to the accommodating space through the through hole.

[0036] In certain embodiments, the accommodating space is further provided with a pressure relief channel communicating with the accommodating cavity or the outside of the shell.

[0037] 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 provided at the bottom of the receiving groove.

[0038] In some embodiments, the energy storage power supply comprises:

[0039] A fixing bracket is connected to the inner wall of the accommodating cavity to fix the battery core to the fixing structure.

[0040] In some embodiments, the energy storage power supply comprises:

[0041] A fixing bracket is connected to the inner wall of the accommodating cavity to fix the battery core to the fixing structure.

[0042] Thus, in the energy storage power supply of the present application, the battery cell is accommodated by the accommodation cavity inside the shell, and the through hole of the mounting wall of the shell is designed to connect the electrode and / or explosion-proof valve of the battery cell with external equipment. The design that the protrusion of one of the seal and the mounting wall is inserted into the groove of the other realizes a close fit between the seal and the shell, and effectively prevents water and other external substances from penetrating into the shell through the joint.

[0043] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0045] Figure 1 It is a schematic diagram of the structure of the energy storage power supply according to the implementation mode of the present application;

[0046] Figure 2 It is one of the exploded schematic diagrams of the energy storage power supply according to the implementation mode of the present application;

[0047] Figure 3 This is the second exploded schematic diagram of the energy storage power supply according to the embodiment of the present application;

[0048] Figure 4 It is one of the schematic diagrams of the sealing member covering the housing according to the embodiment of the present application;

[0049] Figure 5 This is a second schematic diagram of a sealing member cover housing according to an embodiment of the present application;

[0050] Figure 6 It is a schematic diagram of the structure of the housing (excluding the battery cell) of the embodiment of the present application;

[0051] Figure 7is a schematic diagram of the structure of a battery cell according to an embodiment of the present application;

[0052] Figure 8 It is a schematic diagram of the structure of the housing (including the battery cell) of the embodiment of the present application;

[0053] Fig. 9 yes Figure 1 A is a schematic diagram of the partially enlarged structure of FIG.

[0054] Fig.10 yes Figure 1 The cross-sectional view of the medium energy storage power supply along the BB line;

[0055] Fig.11 yes Fig.10 A schematic diagram of the partially enlarged structure of D in the middle;

[0056] Fig.12 yes Fig.10 A schematic diagram of the partially enlarged structure of C in the middle;

[0057] Fig.13 The third exploded schematic diagram of the energy storage power supply according to the embodiment of the present application;

[0058] Fig.14 yes Fig.13 Schematic diagram of the partially enlarged structure of E.

[0059] Main component reference numbers:

[0060] Energy storage power supply 100, shell 10, accommodating cavity 101, accommodating groove 102, installation wall 11, through hole 111, installation groove 112, supporting groove 113, pillar 12, elastic seal 13, seal 20, supporting column 21, transverse reinforcing rib 23, longitudinal reinforcing rib 24, battery cell 30, body 31, first pole 32, second pole 33, explosion-proof valve 34, accommodating space 40, bus 50, first bus 501, first bus 502, collection board 60, first collection board 601, second collection board 602, sealing ring 70, fixing bracket 80. DETAILED DESCRIPTION

[0061] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0062] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0063] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0064] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0065] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0066] The module-free battery product structure is an innovative battery pack design that abandons the traditional battery module hierarchy and directly integrates the battery cells into the battery pack shell or frame. It aims to improve the energy density of the battery system, reduce weight, reduce costs, and simplify the manufacturing and assembly process of the battery pack.

[0067] The structure of module-free battery products directly fixes the battery cell on the shell, resulting in partial or complete exposure of the battery cell, which poses a challenge to the sealing of the battery pack. If the seal is poor or the seal is aged and damaged, water and other external substances may penetrate into the shell through the disassembly interface, causing problems such as short circuit and corrosion of the battery cell. The exposed part of the battery cell is more likely to become a channel for water to penetrate.

[0068] In view of this, please refer to Figure 1 , Figure 2 and Figure 3 , the embodiment of the present application provides an energy storage power supply 100. The energy storage power supply 100 includes a shell 10, a seal 20 and a plurality of battery cells 30. The battery cell 30 includes an electrode and / or an explosion-proof valve 34. A housing 101 for accommodating the battery cell 30 is formed inside the shell 10. The shell 10 has a mounting wall 11. The mounting wall 11 is located on one side of the housing chamber 101 and is formed with a fixed structure for fixing the battery cell 30. A through hole 111 is formed at a corresponding position of the fixed structure. The electrode and / or the explosion-proof valve 34 of the battery cell 30 are connected to the outside of the housing chamber 101 through the through hole 111. The seal 20 is covered on a side of the mounting wall 11 away from the housing chamber 101 to isolate the battery cell 30 from the outside. A groove is formed on the periphery of one of the seal 20 and the mounting wall 11, and a protrusion is formed on the periphery of the other, and the protrusion is inserted into the groove.

[0069] In this way, the energy storage power supply 100 of the present application accommodates the battery cell 30 through the accommodation cavity 101 inside the housing 10, and the through hole 111 of the mounting wall 11 of the housing 10 is designed to connect the battery cell 30 with external equipment. The design that one of the seal 20 and the mounting wall 11 protrudes and is inserted into the groove of the other realizes a tight fit between the seal 20 and the housing 10, effectively preventing water and other external substances from penetrating into the interior of the housing through the joint.

[0070] Specifically, the material of the energy storage power source 100 is plastic, which has low density, high strength, and good insulation, and helps to ensure the safety of the battery cell 30 .

[0071] Optionally, in one embodiment, the energy storage power supply 100 of the embodiment of the present invention can be applied to an outdoor power supply for users to use outdoors. For example, when a user is camping, the energy storage power supply 100 can be used to power and charge electrical appliances, lighting, mobile phones, tablet computers, etc.

[0072] Optionally, in one embodiment, the energy storage power supply 100 of the embodiment of the present invention can be applied to an indoor power supply for users to use indoors. For example, the user can use an external power supply to charge the energy storage power supply 100. If the user's home is out of power, the energy storage power supply 100 can be used to power electrical appliances, lighting, mobile phones, tablet computers, etc.

[0073] The energy storage power supply 100 includes a housing 10, a sealing member 20 and a battery cell 30. A housing 101 for accommodating the battery cell 30 is formed inside the housing 10, providing a stable and safe storage environment for the battery cell 30. The housing 10 also securely fixes the battery cell 30 and other internal components in a designated position through its internal structure and fixing device to prevent them from loosening or shifting during transportation and use.

[0074] The seal 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 housing 10 through the mounting wall 11, protecting the battery cell 30 and other internal components from contamination and damage.

[0075] Further, a groove 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, and the protrusion is inserted into the groove. The insertion can be in the following two forms:

[0076] Please combine Figure 4 A groove is formed at the periphery of the sealing member 20, and a protrusion is formed at the periphery of the mounting wall 11, so that a more stable support and fixing effect can be provided.

[0077] Please combine Figure 5 , the seal 20 has a protrusion formed on the periphery and the mounting wall 11 has a groove formed on the periphery, so that it is more convenient to remove the seal 20. In either case, as long as the protrusion and the groove are reasonably designed and closely matched, a good sealing effect can be achieved.

[0078] The battery cell 30 may be a secondary battery or a primary battery cell. The battery cell 30 may be a lithium-sulfur battery cell, a sodium-ion battery cell or a magnesium-ion battery cell. The battery cell 30 may be cylindrical, flat, rectangular or in other shapes. In this embodiment, the battery cell 30 may be described by taking a cylindrical shape as an example. One or more battery cells 30 are arranged in the accommodating cavity 101. The multiple battery cells 30 may be electrically connected in series, in parallel or in a mixed connection. The mixed connection may refer to both series connection and parallel connection between the multiple battery cells 30. Each battery cell 30 includes two electrodes and an explosion-proof valve 34. The electrodes are respectively arranged at both ends of the battery cell 30. One of the electrodes and / or the explosion-proof valve 34 may be connected to the outside of the accommodating cavity 101 through a through hole 111.

[0079] In some embodiments, the groove is filled with glue.

[0080] Specifically, there may be water accumulation or wet ground, and moisture may enter from the gap between the groove and the protrusion. In this regard, the groove can be filled with glue, which can bond the seal 20 and the shell 10 on the one hand, and also play a waterproof function on the other hand.

[0081] The material used for adhesive should consider excellent waterproof, moisture-proof, corrosion-resistant, insulating and other properties. It can be polyurethane adhesive or acrylate adhesive. Polyurethane adhesive is a commonly used adhesive with good bonding properties and water resistance. The molecular structure of polyurethane adhesive contains a large number of urethane bonds. The presence of such bonds makes polyurethane adhesive have high cohesion and adhesion, and can firmly bond various materials, including metal, plastic, rubber, etc. At the same time, polyurethane adhesive also has good water resistance and weather resistance, and can maintain the bonding effect for a long time in humid or harsh environments. Acrylate adhesive also has excellent bonding properties and waterproof function. The molecular structure of acrylate adhesive contains a large number of acrylate groups. The presence of such groups makes acrylate adhesive have high reactivity and adhesion, can quickly solidify and form a strong chemical bond with the surface of the adherend. In addition, acrylate adhesive also has good water resistance and chemical resistance, and can maintain a stable bonding effect in water or various chemical media.

[0082] See also Fig.10 and Fig.11 In some embodiments, an elastic seal 13 is placed in the groove, and the protrusion abuts against the elastic seal 13.

[0083] Specifically, the main function of the elastic seal 13 is to provide a sealing effect to prevent external substances such as water and dust from entering the interior of the housing through the gap, thereby protecting the internal battery cells 30 and other components from pollution and damage.

[0084] The elastic sealing member 13 is placed in the groove and closely fits the wall of the groove. This design ensures a gap-free connection between the sealing member and the housing 10, thereby improving the reliability of the seal.

[0085] The protrusion abuts against the elastic seal 13. When the groove and the protrusion are matched, the protrusion squeezes the elastic seal 13 in the groove, causing it to further deform and tightly fill the tiny gap between the groove and the protrusion. This abutment not only enhances the sealing effect, but also improves the stability of the connection.

[0086] The elastic sealing member 13 can be made of a material with good elasticity and aging resistance, such as rubber, silicone, etc. These materials can maintain stable performance during long-term use and are not prone to aging and hardening.

[0087] See also Figure 2 In some embodiments, the seal 20 is a cover plate, and a mounting groove 112 is formed on the side of the mounting wall 11 away from the accommodating cavity 101, a through hole 111 is formed at the bottom of the mounting groove 112, the seal 20 covers the mounting groove 112, a groove is formed around the mounting groove 112, and a protrusion is formed around the seal 20.

[0088] Specifically, a groove is formed around the installation groove 112 of the installation wall 11 , and its shape and size match the shape and size of the protrusion of the seal 20 , so that the seal 20 can be accurately placed in the installation groove 112 , thereby achieving positioning and fixing.

[0089] A through hole 111 is formed at the bottom of the mounting groove 112 for electrical connection. The through hole 111 allows current to pass through to meet the working requirements of the battery cell 30 in the housing 10 .

[0090] A plurality of pillars 12 are also provided in the housing 10 to play a supporting role and protect the battery cells 30 and other electronic devices inside the housing from damage due to squeezing.

[0091] The raised portion on the periphery of the seal 20 will naturally align with the groove and embed into it. As the seal 20 is further pressed down, the raised portion will be squeezed by the groove and deformed to a certain extent, thereby forming a close contact with the wall of the groove. This contact not only realizes the physical connection between the seal 20 and the housing 10, but also enhances the stability and sealing of the connection through the compression force between the raised portion and the groove. Through the close contact and compression force between the raised portion and the groove, a good sealing effect is achieved, effectively preventing external substances such as water and dust from entering the interior of the housing 10.

[0092] See also Figure 1 and Figure 3In some embodiments, the mounting wall 11 and the seal 20 form a receiving space 40, the electrodes of the battery cell 30 are connected to the receiving space 40 through the through hole 111, and the receiving space 40 is provided with a bus 50, which is electrically connected to the electrodes of the battery cell 30.

[0093] Please combine Figure 7 and Figure 8 The battery cell 30 may be a cylindrical battery cell. The battery cell 30 includes a body 31, a first pole 32 and a second pole 33. The first pole 32 and the second pole 33 are respectively arranged at both ends of the length direction of the body 31. The battery cell 30 may be placed vertically in the accommodating cavity 101, and its vertical direction corresponds to the length direction of its body 21.

[0094] The busbar 50 is a metal strip or plate used to collect and distribute current. The busbar 50 can be made of copper, aluminum, nickel or alloy. After the busbar 50 is fixed to the correct position by a working jig, the busbar 50 can be welded to the first pole 32 or the second pole 33 of the battery cell 30 by laser welding. It is understood that the electrical connection between the busbar 50 and the pole of the battery cell 30 can also be achieved by other connection methods such as twisting or pressing.

[0095] The busbar 50 connects the electrodes of the multiple battery cells 30 to form an integrated current transmission network, which ensures that the current can flow evenly through each battery cell 30, thereby improving the overall performance and safety of the battery module.

[0096] The energy storage power supply 100 may also include a collection board 60, which is a circuit board specially designed to collect the status information of the battery cell 30. Through high-precision sensors or measurement circuits, analog signals such as voltage, current and temperature of the battery cell 30 are collected and converted into digital signals for subsequent processing. By real-time monitoring and collecting the status information of the battery cell 30, the working status of the battery cell 30 can be accurately grasped, and corresponding control measures can be taken in time, thereby avoiding potential safety risks such as overcharging, over-discharging, and overheating of the battery cell 30, and improving the service life and performance of the battery cell 30.

[0097] The busbar 50 includes a first busbar 501 and a second busbar 502, and the acquisition board 60 includes a first acquisition board 601 and a second acquisition board 602. The first acquisition board 601 can be fixed to a corresponding position on the first busbar 501 by screws, and the second acquisition board 602 can be fixed to a corresponding position on the first busbar 502. After the acquisition board 60 is fixed, the nickel strip of the first acquisition board 601 and the first busbar 501 can be connected by electrical connection such as laser welding, so as to realize the electrical connection between the first acquisition board 601 and the first busbar 501. The state information of the battery cell 30 can be collected by the acquisition component. The state information of the battery cell 30 may include information such as the voltage, current and temperature of each battery cell 30.

[0098] See also Figure 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 thereby isolate the bus from external water vapor.

[0099] See also Fig. 9 In some embodiments, the mounting wall 11 and the sealing member 20 form an accommodating space 40 , and the explosion-proof valve is connected to the accommodating space 40 through the through hole 111 .

[0100] The explosion-proof valve 34 is installed on the battery cell 30 and communicates with the accommodation space 40 through the through hole 111. The main function of installing the explosion-proof valve 34 on the battery cell 30 is to automatically release the pressure when the internal pressure of the battery cell 30 is too high, thereby preventing the battery cell 30 from exploding. When the internal pressure of the battery cell 30 exceeds the set value, the explosion-proof valve 34 will automatically open or rupture, allowing the internal gas or liquid to be quickly discharged to the outside of the accommodation space 40, thereby reducing the pressure inside the battery cell 30. Therefore, when the battery cell 30 is in thermal runaway, the material sprayed from the explosion-proof valve 34 can be sprayed into the accommodation space 40 through the through hole 111, preventing the thermal runaway from spreading to a certain extent.

[0101] Specifically, during operation, the battery cell 30 may release gas inside, causing the pressure inside the battery cell 30 to increase. When the pressure is high, the explosion-proof valve 34 may rupture to release the substances (such as gas, liquid, etc.) inside the battery cell 30. The explosion-proof valve 34 is connected to the accommodating space 40 through the first through hole 111, and the substances sprayed out of the explosion-proof valve 34 can be sprayed into the accommodating space 40. The accommodating space 40 isolates the substances sprayed out of the explosion-proof valve 34 from other battery cells 30 in the accommodating cavity 101, thereby preventing the thermal runaway of a battery cell 30 from spreading to other battery cells 30 to a certain extent, thereby improving the safety of the energy storage power supply 100.

[0102] In some embodiments, the accommodating space 40 is further provided with a pressure relief channel communicating with the accommodating cavity 101 or the outside of the housing 10 .

[0103] To further ensure safety, the accommodating space 40 is also provided with a pressure relief channel connected to the accommodating chamber 101 or the outside of the housing 10. This channel allows the gas or liquid in the accommodating space 40 to be smoothly discharged to the external environment after the explosion-proof valve 34 releases the pressure, thereby avoiding accumulation in the accommodating space 40 and causing potential danger.

[0104] In some embodiments, the mounting wall 11 is disposed at the bottom of the housing 10 .

[0105] The mounting wall 11 is located at the bottom of the housing 10, providing a stable support for the battery cell 30 or other mounting components. This design helps to ensure the stability of the battery cell 30 during operation and reduce the risk of damage caused by vibration or impact.

[0106] A mounting wall 11 is provided at the bottom of the housing 10 . On the one hand, the joint formed by the seal 20 and the housing 10 is not easily visible. On the other hand, the gravity of the entire product can make the joint between the seal 20 and the housing 10 more stable.

[0107] The installation wall 11 at the bottom may also involve heat dissipation design. If the battery cell 30 generates a lot of heat during operation, the bottom of the housing 10 may be designed with a heat sink, heat dissipation holes or a structure connected to other heat dissipation systems to effectively dissipate the heat to the external environment.

[0108] See also Figure 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 .

[0109] Optionally, the receiving groove 102 may include multiple receiving grooves 102, and the multiple receiving grooves 102 are arranged in a matrix, so that the multiple battery cells 30 are also arranged in a matrix accordingly, thereby the arrangement of the multiple battery cells 30 is relatively regular, which is conducive to improving the space utilization of the energy storage power supply 100. The shape of the receiving groove 28 is adapted to the shape of the battery cell 30, so as to more effectively fix and limit the battery cell 30. Figure 6 In the embodiment, the battery cell 30 is cylindrical, and the receiving groove 102 is also cylindrical accordingly.

[0110] In this way, the receiving groove 102 can restrict the battery cell 30 to prevent the battery cell 30 from shaking during the use of the energy storage power supply 100 and affecting the normal use of the energy storage power supply 100 .

[0111] See also Figure 8 and Fig.13 In some embodiments, the energy storage power supply 100 includes a fixing bracket 80, and the fixing bracket 80 is connected to the inner wall of the accommodating cavity 101 to fix the battery cell 30 to the fixed structure.

[0112] Specifically, the fixed bracket 80 is arranged in the accommodating cavity 101 and fixedly connected to the inner wall of the accommodating cavity 101. The fixed bracket 80 is arranged at one end of the battery cell 30 away from the fixed structure. The fixed bracket 80 and the fixed structure can clamp the battery cell 30 in the up and down directions so that the battery cell 30 is more stably fixed in the accommodating cavity 101. Therefore, the fixed bracket 80 can further enhance the stability of the battery cell 30.

[0113] In some embodiments, the energy storage power supply 100 further includes an inverter, which is disposed in the accommodating cavity 101 and electrically connected to the battery cell 30 , and the inverter is fixedly disposed on the fixing bracket 80 .

[0114] Specifically, the inverter is one of the core components of the energy storage power supply 100. The inverter is arranged in the accommodating cavity 101, so that the housing 10 can protect the inverter. The inverter 16 is electrically connected to the battery cell 30, and can convert the direct current of the battery cell 30 into alternating current to power electrical appliances using alternating current. Optionally, the energy storage power supply 100 can also output direct current to power electronic devices using direct current.

[0115] Furthermore, the inverter 16 can be arranged on the side of the fixing bracket 80 away from the battery cell 30, so that the fixing bracket 80 can be used to fix the inverter 16, which can reduce the additional components for fixing the inverter, and can reduce 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 reducing the manufacturing cost of the energy storage power supply 100.

[0116] It is understandable that the performance of the inverter directly affects the output quality and efficiency of the energy storage power supply 100, so inverters with high conversion efficiency, high stability and good heat dissipation performance are given priority in design and selection. The inverter is fixed on the fixing bracket 82 to ensure the stable position of the inverter in the energy storage power supply 100 and facilitate heat dissipation and maintenance.

[0117] See also Figure 1 and Fig.12 In some embodiments, one of the mounting wall 11 or the sealing member 20 is provided with a supporting structure, and the supporting structure abuts against the other of the mounting wall or the sealing member 20 .

[0118] In the battery module, the seal 20 is a relatively large plastic plate, which is fixed only by the four sides of the seal 20. There is a possibility that the middle part may collapse or bulge, which will affect the overall stability and sealing of the energy storage power supply 100. To address this problem, a support structure can be provided on one of the mounting wall 11 or the seal 20 to ensure the flatness and stability of the seal 20.

[0119] The support structure is mounted on the mounting wall 11 or the seal 20 to ensure that the mounting wall 11 and the seal 20 can be closely abutted together. When the support structure is arranged on the mounting wall 11, it is necessary to ensure that the support structure does not interfere with the battery cell 30 or other internal components. When the support structure is arranged on the seal 20, the support structure should be designed to match the corresponding part on the mounting wall 11 so that it can fit tightly during assembly.

[0120] The support structure can be designed as multiple point supports, columnar supports or mesh supports to disperse and support the weight of the seal 20. Point supports are suitable for smaller, irregularly shaped parts of the model, and can provide stable support points at key positions to effectively prevent local collapse. The point support design is flexible and can be precisely adjusted according to the shape and weight distribution of the seal 20. By precisely arranging the support points, the point support can minimize the impact on the overall appearance and structure of the seal 20, maintaining the aesthetics and functionality of the product. However, point supports may have certain limitations in the support range, and the strength requirements for the material are relatively high. The columnar support is composed of a plurality of cylindrical arrays, has greater structural strength and rigidity, and can withstand greater pressure and loads. The mesh support is formed by a grid interwoven with multiple sheet supports, and performs well in structural strength, material saving and heat dissipation, but the production and installation process of the mesh support is relatively complicated.

[0121] See also Figure 12-14 In some embodiments, the supporting structure is a supporting column 21, one of the mounting wall 11 or the sealing member 20 is provided with the supporting column 21, and the other of the mounting wall 11 or the sealing member 30 is provided with a supporting groove 113, and the supporting column 21 is inserted into the supporting groove 113.

[0122] In this embodiment, the support columns 21 are evenly arranged on the seal 20, and the support grooves 113 that cooperate with the support columns 21 are evenly arranged on the mounting wall 11. On the one hand, the support columns 21 and the support grooves 113 abut against each other to form a support effect, thereby preventing the seal 20 from collapsing and pressing the busbar or causing the seal 20 to deform and affect the appearance.

[0123] See also Fig.13 and Fig.14 In some embodiments, the seal 20 is provided with reinforcing ribs, and the supporting structure is provided on the reinforcing ribs.

[0124] It should be noted that reinforcement is a structural element added inside or outside the structure. Reinforcement is usually in the form of plates, strips or other shapes, used to enhance the bearing capacity and stability of the original structure.

[0125] The reinforcing ribs protrude from the seal 20 toward the housing 10 and are in a grid or honeycomb shape, etc. The specific shape is not limited, for example, see Fig.13 The reinforcement ribs are in a grid shape, and the reinforcement ribs include a plurality of transverse reinforcement ribs 23 and a plurality of longitudinal reinforcement ribs 24. The extension direction of the transverse reinforcement ribs 23 is perpendicular to that of the longitudinal reinforcement ribs 24, and the support structure is arranged at the intersection of the transverse reinforcement ribs 23 and the longitudinal reinforcement ribs 24. Among them, the transverse reinforcement ribs 23 extend along the width or short side direction of the structure, and their main function is to enhance the rigidity and strength of the structure in the transverse direction. The transverse reinforcement ribs 23 can effectively resist the pressure or shear force from the side, and prevent the structure from being deformed or damaged too much in the transverse direction. The longitudinal reinforcement ribs 24 extend along the length or long side direction of the structure, and their main function is to enhance the rigidity and strength of the structure in the longitudinal direction. The longitudinal reinforcement ribs 24 can withstand the tension or pressure from both ends of the structure, and ensure that the structure remains stable in the longitudinal direction. When the extension direction of the transverse reinforcement ribs 23 is perpendicular to that of the longitudinal reinforcement ribs 24, the transverse reinforcement ribs 23 and the longitudinal reinforcement ribs 24 together form a grid-like structural system. The grid-like structural system can more effectively disperse and bear the loads from all directions, and improve the bearing capacity and stability of the overall structure.

[0126] Thus, the reinforcing ribs are provided on the seal 20 to increase the rigidity and strength of the seal 20, so that the seal 20 can better resist external forces such as bending and impact. The supporting structure is provided on the reinforcing ribs to further improve the bearing capacity of these areas, so that the seal 20 can withstand greater weight and pressure.

[0127] In some embodiments, a buckle is provided on one of the sealing member 20 or the mounting wall 11 , and the supporting structure is a hook, and the buckle is connected with the hook by a clamping force.

[0128] The use of a snap-on and hook-on clamping connection method to achieve fixation between the seal 20 and the mounting wall 11 is a convenient and reliable assembly method, which enables the energy storage power supply 100 to quickly install and remove the seal 20 .

[0129] The buckle is arranged on one of the seal 20 or the mounting wall 11 and is an elastic structural member. The buckle is designed with a groove or hole inside that can accommodate and lock the hook. When the buckle cooperates with the hook, a certain pre-tightening force can be generated to ensure the stability of the connection.

[0130] The hook is a part of the supporting structure and is arranged on the other of the seal 20 or the mounting wall 11. The shape and size of the hook match the buckle, and can be easily inserted into the groove or hole of the buckle, and locked by the elastic action of the buckle after insertion.

[0131] The clamping connection mode of the buckle and the hook makes the installation and removal process of the seal 20 very simple and quick, without the need to use additional tools or complicated operating steps.

[0132] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0133] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An energy storage power supply, characterized in that: The energy storage power supply comprises: A plurality of battery cells, each of which comprises electrodes and / or explosion-proof valves; A housing, wherein a housing cavity for accommodating a battery cell is formed inside the housing, the housing has a mounting wall, the mounting wall is located on one side of the housing cavity and is formed with a fixing structure for fixing the battery cell, a through hole is formed at a corresponding position of the fixing structure, and the electrode and / or the explosion-proof valve of the battery cell are connected to the outside of the housing cavity through the through hole; A sealing member, wherein the sealing member cover is disposed on a side of the installation wall away from the accommodating cavity to isolate the battery cell from the outside, wherein a groove is formed at the periphery of one of the sealing member and the installation wall, and a protrusion is formed at the periphery of the other, and the protrusion is inserted into the groove.

2. The energy storage power supply according to claim 1, characterized in that: The groove is filled with adhesive.

3. The energy storage power supply according to claim 1, characterized in that: An elastic sealing member is placed in the groove, and the protrusion abuts against the elastic sealing member.

4. The energy storage power supply according to claim 1, characterized in that: The sealing member is a cover plate, a mounting groove is formed on a side of the mounting wall away from the accommodating cavity, the through hole is formed at the bottom of the mounting groove, the cover plate is covered in the mounting groove, the groove is formed at the periphery of the mounting groove, and the protrusion is formed at the periphery of the cover plate.

5. The energy storage power supply according to claim 1, characterized in that: The installation wall and the sealing member form an accommodation space, the accommodation space is provided with a bus bar, and the bus bar is electrically connected to the electrodes of the battery core.

6. The energy storage power supply according to claim 1, characterized in that: The installation wall and the sealing member form an accommodating space, and the explosion-proof valve is communicated with the accommodating space through the through hole.

7. The energy storage power supply according to claim 6, characterized in that: The accommodating space is also provided with a pressure relief channel communicating with the accommodating cavity or the outside of the shell.

8. The energy storage power supply according to claim 1, characterized in that: The mounting wall is arranged at the bottom of the housing.

9. The energy storage power supply according to claim 1, characterized in that: The fixing structure is a receiving groove, one end of the battery cell is inserted into the receiving groove, and the through hole is arranged at the bottom of the receiving groove.

10. The energy storage power supply according to claim 1, characterized in that: One of the mounting wall or the sealing member is provided with a supporting structure, the supporting structure abutting against the other of the mounting wall or the sealing member.

11. The energy storage power supply according to claim 10, characterized in that: The supporting structure is a supporting column, one of the mounting wall or the sealing member is provided with the supporting column, the other of the mounting wall or the sealing member is provided with a supporting groove, and the supporting column is inserted into the supporting groove.

12. The energy storage power supply according to claim 1, characterized in that: The energy storage power supply comprises: A fixing bracket is connected to the inner wall of the accommodating cavity to fix the battery core to the fixing structure.

13. The energy storage power supply according to claim 12, characterized in that: The energy storage power supply comprises: An inverter is disposed in the accommodating cavity and electrically connected to the battery core, and the inverter is fixedly disposed on the fixing bracket.

14. An energy storage power supply, characterized in that: The energy storage power supply comprises: A plurality of battery cells, each of which comprises electrodes and / or explosion-proof valves; A housing, wherein a housing cavity for accommodating a battery cell is formed inside the housing, the housing has a mounting wall, the mounting wall is located on one side of the housing cavity and is formed with a fixing structure for fixing the battery cell, a through hole is formed at a corresponding position of the fixing structure, and the electrode and / or the explosion-proof valve of the battery cell are connected to the outside of the housing cavity through the through hole; A seal, wherein the seal cover is arranged on a side of the installation wall away from the accommodating cavity to isolate the battery cell from the outside, and one of the seal and the installation wall is provided with a supporting structure, and the supporting structure abuts against the other of the installation wall or the seal.

15. The energy storage power supply according to claim 14, characterized in that: The supporting structure is a supporting column, one of the mounting wall or the sealing member is provided with the supporting column, and the supporting column is supported against the other of the mounting wall or the sealing member.

16. The energy storage power supply according to claim 15, characterized in that: The other of the installation wall or the sealing member is provided with a support groove, and the support column is inserted into the support groove.

17. The energy storage power supply according to claim 14, characterized in that: A buckle is provided on one of the sealing member or the mounting wall, the supporting structure is a hook, and the buckle is connected with the hook by being locked.

18. The energy storage power source according to claim 14, characterized in that: The sealing member is provided with reinforcing ribs, and the supporting structure is provided on the reinforcing ribs.

19. The energy storage power supply according to any one of claims 14 to 18, characterized in that: The mounting wall is arranged at the bottom of the housing.

20. The energy storage power source according to claim 14, characterized in that: A groove is formed on the periphery of one of the sealing member and the installation wall, and a protrusion is formed on the periphery of the other one, and the protrusion is inserted into the groove.

21. The energy storage power source according to claim 20, characterized in that: The groove is filled with adhesive.

22. The energy storage power source according to claim 20, characterized in that: An elastic sealing member is placed in the groove, and the protrusion abuts against the elastic sealing member.

23. The energy storage power source according to claim 14, characterized in that: The sealing member is a cover plate, a mounting groove is formed on a side of the mounting wall away from the accommodating cavity, the through hole is formed at the bottom of the mounting groove, the cover plate is covered in the mounting groove, a groove is formed at the periphery of the mounting groove, and a protrusion is formed at the periphery of the cover plate.

24. The energy storage power source according to claim 14, characterized in that: The installation wall and the sealing member form an accommodating space, the electrodes of the battery cell are connected to the accommodating space through the through holes, and the accommodating space is provided with a bus bar, which is electrically connected to the electrodes of the battery cell.

25. The energy storage power source according to claim 14, characterized in that: The installation wall and the sealing member form an accommodating space, and the explosion-proof valve is communicated with the accommodating space through the through hole.

26. The energy storage power source according to claim 25, characterized in that: The accommodating space is also provided with a pressure relief channel communicating with the accommodating cavity or the outside of the shell.

27. The energy storage power source according to claim 14, characterized in that: The fixing structure is a receiving groove, one end of the battery cell is inserted into the receiving groove, and the through hole is arranged at the bottom of the receiving groove.

28. The energy storage power source according to claim 14, characterized in that: The energy storage power supply comprises: A fixing bracket is connected to the inner wall of the accommodating cavity to fix the battery core to the fixing structure.

29. The energy storage power source according to claim 28, characterized in that: The energy storage power supply comprises: An inverter is disposed in the accommodating cavity and electrically connected to the battery core, and the inverter is fixedly disposed on the fixing bracket.

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