Energy storage power supply

Abstract

The utility model discloses an energy storage power supply. The energy storage power supply comprises a shell and a cover plate. A containing cavity is formed in the shell, a plurality of battery cells are fixed in the containing cavity, the shell is provided with a mounting wall, and a through hole is formed in the mounting wall and communicated with the outside of the containing cavity. The cover plate covers one side, far away from the accommodating cavity, of the mounting wall, the cover plate and the shell form an accommodating space, and the anti-explosion valve of the battery cell is communicated with the accommodating space through the through hole. Therefore, the accommodating space ensures that when the explosion-proof valve of the battery cell needs to release pressure, the accommodating space has enough space for gas or liquid to expand and discharge, so that the safety problem of leakage of the explosion-proof valve in the module-free energy storage power supply structure is effectively solved, and the overall safety and reliability of the energy storage power supply are improved.

Description

Technical Field

[0001] The present application relates to the field of energy storage technology, and in particular to an energy storage power supply. Background Art

[0002] Existing energy storage power supply products first use two fixing brackets to fix several battery cells into a battery module, and then fix it to the shell of the energy storage power supply. The energy storage power supply with this structure is large in overall size and weight, and the explosion-proof valve of its battery cell is directly connected to the interior of the energy storage power supply. Utility Model Content

[0003] 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.

[0004] The energy storage power supply according to the present embodiment includes a housing and a cover. The housing defines a storage cavity within which a plurality of battery cells are secured. The housing has a mounting wall formed with a through-hole communicating with the exterior of the storage cavity. The cover is positioned on the side of the mounting wall facing away from the storage cavity. The cover and the housing define a storage space, and the explosion-proof valves of the battery cells communicate with the storage space through the through-hole.

[0005] 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.

[0006] In some embodiments, the mounting wall is located on one side of the accommodating cavity and is formed with a fixing structure for fixing the battery core, and the through hole is formed in the fixing structure.

[0007] In some embodiments, the electrodes of the battery cell are in communication with the accommodating space through the through-holes, the accommodating space is provided with a bus bar, and the bus bar is electrically connected to the electrodes of the battery cell.

[0008] 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.

[0009] In certain embodiments, the energy storage power supply further includes a fixing bracket connected to a side wall of the accommodating cavity to fix one end of the battery cell to the fixing structure.

[0010] In certain embodiments, the energy storage power supply further includes an inverter, and the inverter is fixed to the fixing bracket.

[0011] In certain embodiments, a groove is formed on a periphery of one of the cover plate and the mounting wall, and a protrusion is formed on a periphery of the other, and the protrusion is inserted into the groove.

[0012] In some embodiments, the groove is filled with glue.

[0013] In certain embodiments, an elastic sealing member is placed in the groove, and the protrusion abuts against the elastic sealing member.

[0014] In some embodiments, the mounting wall is disposed on the bottom of the housing.

[0015] In some embodiments, one of the mounting wall or the cover plate is provided with a support structure, and the support structure abuts against the other of the mounting wall or the cover plate.

[0016] In some embodiments, the supporting structure is a boss, one of the mounting wall or the cover plate is provided with the boss, the other of the mounting wall or the cover plate is provided with a glue dispensing groove, the glue dispensing groove is injected with glue, and the boss is inserted into the glue dispensing groove.

[0017] In this way, the accommodation space ensures that when the explosion-proof valve of the battery cell needs to release pressure, there is sufficient space for gas or liquid to expand and discharge, effectively solving the safety problem of explosion-proof valve leakage in the module-free energy storage power supply structure and improving the overall safety and reliability of the energy storage power supply. Additional aspects and advantages of the present application will be partially set forth in the following description, and some will become apparent from the following description or be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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:

[0019] Figure 1 It is a structural diagram of the energy storage power supply according to the embodiment of the present application;

[0020] Figure 2 This is one of the exploded schematic diagrams of the energy storage power supply according to the embodiment of the present application;

[0021] Figure 3 This is the second exploded schematic diagram of the energy storage power supply according to the embodiment of the present application;

[0022] Figure 4 Schematic diagram of the structure of the housing (excluding the battery cell) of the embodiment of the present application;

[0023] Figure 5 yes Figure 1 A is a schematic diagram of the partially enlarged structure of FIG.

[0024] Figure 6 Schematic diagram of the structure of the battery cell according to the embodiment of the present application;

[0025] Figure 7Schematic diagram of the structure of the housing (including the battery cell) according to the embodiment of the present application;

[0026] Figure 8 This is one of the schematic diagrams of a cover plate covering a housing according to an embodiment of the present application;

[0027] Figure 9 This is a second schematic diagram of a cover plate covering a housing according to an embodiment of the present application;

[0028] Figure 10 yes Figure 1 Cross-sectional view of the medium energy storage power supply along line BB;

[0029] Figure 11 yes Figure 10 Schematic diagram of the partially enlarged structure of C in the middle.

[0030] Main components reference numbers:

[0031] Energy storage power supply 100, housing 10, cover 20, battery cell 30, explosion-proof valve 31, accommodating chamber 40, mounting wall 50, through-hole 51, pillar 52, accommodating space 60, first bus 61, second bus 62, first collection board 63, second collection board 64, sealing ring 70, accommodating groove 81, fixing bracket 82, boss 91, and glue dispensing groove 92. DETAILED DESCRIPTION

[0032] 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 should not be understood as limiting the present application.

[0033] 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 orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0035] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0036] The disclosure below provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0037] The present application provides a module-free energy storage power supply 100, whose product structure abandons the traditional battery module hierarchy and directly integrates the battery cell 30 into the shell or frame of the energy storage power supply 100, aiming to improve the energy density of the energy storage system, reduce weight, reduce costs, and simplify the manufacturing and assembly process of the energy storage power supply 100.

[0038] The explosion-proof valve 31 is a safety device of the battery cell 30, which is used to open and release the internal pressure in time when excessive pressure is generated inside the battery cell 30, thereby preventing the battery cell 30 from exploding due to overcharging, external force collision or overheating.

[0039] In the module-free energy storage power supply 100 of the present application, the bottom of the battery cell 30 is tightly connected to the housing, which limits the pressure relief space of the explosion-proof valve 31 and increases safety risks. If the explosion-proof valve 31 does not have sufficient space to effectively release pressure when it is needed, high-pressure gas or liquid inside may accumulate inside the energy storage power supply 100, increasing the risk of battery short circuit, leakage, or even explosion.

[0040] In view of this, please see Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The present application provides an energy storage power supply 100 in an embodiment. The energy storage power supply 100 includes a housing 10 and a cover plate 20. The housing 10 defines a housing cavity 40, which holds a plurality of battery cells 30. The housing 10 includes a mounting wall 50, which defines a through hole 51 that communicates with the exterior of the housing cavity 40. The cover plate 20 covers the side of the mounting wall 50 that is away from the housing cavity 40. The cover plate 20 and the housing 10 define a housing space 60. The explosion-proof valve 31 of the battery cell 30 communicates with the housing space 60 through the through hole 51.

[0041] In this way, the accommodating space 60 ensures that when the explosion-proof valve 31 of the battery cell 30 needs to release pressure, there is sufficient space for gas or liquid to expand and discharge, effectively solving the safety problem of leakage of the explosion-proof valve 31 in the module-free energy storage power supply 100 structure, and improving the overall safety and reliability of the energy storage power supply 100.

[0042] Specifically, the energy storage power supply 100 includes a housing 10 and a cover plate 20 .

[0043] Please combine Figure 4 The housing 10 has a housing cavity 40 for accommodating the battery cell 30, providing a stable and safe storage environment for the battery cell 30. A plurality of supports 52 are also provided in the housing 10 to support and protect the battery cell 30 and other electronic components inside the housing from damage due to squeezing.

[0044] The housing 10 has a mounting wall 50, and the mounting wall 50 is formed with a through hole 51. The through hole 51 is designed to connect the battery cell 30 with an external device.

[0045] The cover plate 20 is arranged on the side of the installation wall 50 away from the accommodating cavity 40, isolating the installation wall 50 from the outside, thereby effectively preventing external substances such as water and dust from entering the interior of the shell 10 through the installation wall 50, and protecting the battery cell 30 and other internal components from pollution and damage.

[0046] The housing 10 and the cover 20 are made of plastic, which has low density, high strength, and good insulation properties, thus helping to ensure the safety of the battery cell 30 .

[0047] See also Figure 1 and Figure 5 The battery cell 30 includes an explosion-proof valve 31 , and the mounting wall 50 and the cover plate 20 form an accommodating space 60 . The explosion-proof valve 31 is connected to the accommodating space 60 through the through hole 51 .

[0048] The accommodating space 60, enclosed by the mounting wall 50 and the cover plate 20, ensures sufficient space for gas or liquid to expand and escape when the explosion-proof valve 31 needs to release pressure. The explosion-proof valve 31 is mounted on the battery cell 30 and communicates with the accommodating space 60 via the through-hole 51. When the internal pressure of the battery cell 30 exceeds a set value, the explosion-proof valve 31 automatically opens or ruptures, allowing the internal gas or liquid to quickly escape, thereby reducing the internal pressure of the battery cell 30 and preventing explosion.

[0049] In some embodiments, the accommodating space 60 is further provided with a pressure relief channel communicating with the accommodating cavity 40 or the outside of the housing 10 .

[0050] To further ensure safety, the accommodating space 60 is also provided with a pressure relief passage that communicates with the accommodating chamber 40 or the outside of the housing 10. This passage allows the gas or liquid in the accommodating space 60 to be smoothly discharged to the external environment after the explosion-proof valve 31 releases pressure, thereby preventing accumulation in the accommodating space 60 and potential danger.

[0051] In some embodiments, the mounting wall 50 is located on one side of the accommodating cavity 40 and is formed with a fixing structure for fixing the battery cell 30 , and the through hole 51 is formed in the fixing structure.

[0052] Specifically, during transportation and use, the energy storage power supply 100 may encounter various external factors such as vibration and impact. If the internal components, especially the battery cells 30, are not properly secured, they can easily become loose or shift, thereby affecting the normal operation and performance of the device. By designing a reasonable securing structure and tightly integrating the internal components with the housing 10, this can be effectively prevented.

[0053] The mounting wall 50 is located on one side of the accommodating cavity 40 and is the outer edge of the housing 10. A specific fixing structure is designed thereon for fixing the battery cell 30. The fixing structure can be a groove or hole with a certain shape and size opened on the mounting wall 50.

[0054] In some embodiments, the electrodes of the battery cell 30 are connected to the accommodating space 60 through the through-hole 51 . The accommodating space 60 is provided with a bus bar, which is electrically connected to the electrodes of the battery cell 30 .

[0055] Specifically, please combine Figure 6 and Figure 7The battery cell 30 can 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 provided at both ends of the length direction of the body 31. The battery cell 30 can be placed vertically in the accommodating cavity 40, with its vertical direction corresponding to the length direction of its body 21.

[0056] A busbar is a metal bar or plate used to collect and distribute electrical current. It can be made of copper, aluminum, nickel, or an alloy. After the busbar is secured in place using a work fixture, it can be laser welded to the first or second pole 32, 33 of the battery cell 30. It is understood that the electrical connection between the busbar and the poles of the battery cell 30 can also be achieved through other connection methods, such as twisting or pressing.

[0057] The busbar connects the electrodes of multiple battery cells 30 to form an integrated current transmission network. This ensures that current flows evenly through each battery cell 30, improving the overall performance and safety of the battery module.

[0058] The acquisition board is a circuit board specifically designed to collect status information from the battery cells 30. Using high-precision sensors or measurement circuits, it collects analog signals such as voltage, current, and temperature from the battery cells 30 and converts them into digital signals for subsequent processing. By monitoring and collecting this information in real time, the operating status of the battery cells 30 can be accurately understood, allowing for timely implementation of appropriate control measures. This prevents potential safety risks such as overcharging, over-discharging, and overheating, thereby improving the battery cells' lifespan and performance.

[0059] The first acquisition board 63 can be secured to the corresponding position on the first busbar 61 using screws, and the second acquisition board 64 can be secured to the corresponding position on the second busbar 62. After the acquisition boards are secured, the nickel strip of the first acquisition board 63 can be connected to the first busbar 61 using an electrical connection method such as laser welding, thereby achieving an electrical connection between the first acquisition board 63 and the first busbar 61. The acquisition assembly can be used to collect status information of the battery cells 30. This status information of the battery cells 30 may include information such as the voltage, current, and temperature of each battery cell 30.

[0060] A sealing ring 70 is provided between the cover plate 20 and the outer wall of the housing 10 to enhance the sealing effect and thereby isolate the busbar from external moisture.

[0061] See also Figure 7 In some embodiments, the fixing structure is a receiving groove 81 , one end of the battery cell 30 is inserted into the receiving groove 81 , and a through hole 51 is provided at the bottom of the receiving groove 81 .

[0062] Specifically, the receiving groove 81 is a groove of a specific shape and size formed in the mounting wall 50. The battery cell 30 is fixed to the receiving groove 81 in an inserted manner. A through hole 51 is provided at the bottom of the receiving groove 81. The receiving groove 81 fixes one end of the battery cell 30, and the first terminal 32 is connected to the outside through the through hole 51.

[0063] In some embodiments, the energy storage power supply 100 further includes a fixing bracket 82 , which is connected to a side wall of the accommodating cavity 40 to fix one end of the battery cell 30 to a fixed structure.

[0064] The fixing bracket 82 is connected to the side wall of the accommodating cavity 40 to fix the other end of the battery cell 30, thereby securing the battery cell 30 to the accommodating groove 81. In this way, the accommodating groove 81 and the fixing bracket 82 can fix the two ends of the battery cell 30, thereby preventing the battery cell 30 from bending or being thrown out when the energy storage power supply 100 is subjected to external interference such as vibration.

[0065] In some embodiments, the energy storage power supply 100 further includes an inverter, which is fixed to the fixing bracket 82 .

[0066] Specifically, the inverter is one of the core components of the energy storage power supply 100. It is responsible for converting the DC power output by the battery cells 30 into AC power. The performance of the inverter directly affects the output quality and efficiency of the energy storage power supply 100. Therefore, the design and selection of inverters with high conversion efficiency, high stability, and good heat dissipation performance are prioritized. The inverter is fixed to the fixed bracket 82 to ensure its stable position within the energy storage power supply 100 and facilitate heat dissipation and maintenance.

[0067] The module-less energy storage power supply 100 directly secures the battery cells 30 to the housing 10, exposing some or all of the cells 30 to the outside. This poses a challenge to the sealing of the cells 30. If the seal is poor or the seal is damaged due to aging, foreign matter such as water may seep into the housing through the disassembly interface, causing problems such as short circuits and corrosion in the cells 30. The exposed portion of the cells 30 is more likely to become a channel for water to enter.

[0068] To address the above problem, in some embodiments, a groove is formed on the periphery of one of the cover plate 20 and the mounting wall 50 , and a protrusion is formed on the periphery of the other, and the protrusion is inserted into the groove.

[0069] Specifically, a groove is formed on the periphery of one of the cover plate 20 and the mounting wall 50, and a protrusion is formed on the periphery of the other. The protrusion is inserted into the groove. The insertion can be in the following two forms:

[0070] Please combine Figure 8 The groove formed on the periphery of the cover plate 20 and the ridge formed on the periphery of the mounting wall 50 can provide more stable support and fixing effect. Figure 9, the cover plate 20 is formed with a protrusion on the periphery and the mounting wall 50 is formed with a groove on the periphery, which can make it easier to remove the cover plate 20. In either case, as long as the protrusion and the groove are designed reasonably and fit tightly, a good sealing effect can be achieved.

[0071] In this way, the design in which the protrusion of one of the cover plate 20 and the mounting wall 50 is inserted into the groove of the other realizes a tight fit between the cover plate 20 and the housing 10, effectively preventing water and other external substances from penetrating into the interior of the housing through the joints.

[0072] In some embodiments, the groove is filled with glue.

[0073] Specifically, there may be water accumulation or wet ground, and moisture may enter from the gap between the groove and the protrusion. To this end, the groove can be filled with glue. On the one hand, the glue can bond the cover 20 and the shell 10, and on the other hand, it can also play a waterproof function.

[0074] The material used for adhesives should be characterized by excellent waterproofing, moisture resistance, corrosion resistance, and insulation properties. Polyurethane adhesive or acrylate adhesive can be used. Polyurethane adhesive is a commonly used adhesive with excellent bonding properties and water resistance. Polyurethane adhesive contains a large number of urethane bonds in its molecular structure, which gives it high cohesion and adhesion, enabling it to firmly bond to a variety of materials, including metals, plastics, and rubber. Polyurethane adhesive also exhibits excellent water and weather resistance, maintaining long-term adhesion in humid or harsh environments. Acrylate adhesives also offer excellent bonding properties and waterproofing. The molecular structure of acrylate adhesives contains a large number of acrylate groups, which give them high reactivity and adhesion, allowing them to cure quickly and form strong chemical bonds with the adherend surface. Acrylate adhesives also have excellent water and chemical resistance, maintaining stable adhesion in water and various chemical media.

[0075] In certain embodiments, an elastic sealing member is placed in the groove, and the protrusion abuts against the elastic sealing member.

[0076] Specifically, the main function of the elastic seal is to provide a sealing effect to prevent external substances such as water and dust from entering the interior of the housing through the gaps, thereby protecting the internal battery cells 30 and other components from contamination and damage.

[0077] The elastic sealing member is placed in the groove and fits tightly against 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.

[0078] The protrusion abuts against the elastic seal. When the groove and the protrusion mate, the protrusion squeezes the elastic seal 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.

[0079] Elastic seals can be made of materials with good elasticity and aging resistance, such as rubber, silicone, etc. These materials can maintain stable performance during long-term use and are not easy to age and harden.

[0080] In some embodiments, the mounting wall 50 is disposed at the bottom of the housing 10 .

[0081] The mounting wall 50 is located at the bottom of the housing 10 and provides a stable support for the battery cell 30 or other mounted components. This design helps ensure the stability of the battery cell 30 during operation and reduces the risk of damage caused by vibration or impact.

[0082] The bottom is provided with a mounting wall 50 . On one hand, the joint formed between the cover plate 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 cover plate 20 and the housing 10 more stable.

[0083] The bottom mounting wall 50 may also be provided for heat dissipation design. If the battery cell 30 generates a large amount 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.

[0084] In certain embodiments, one of the mounting wall 50 or the cover plate 20 is provided with a support structure that abuts the other of the mounting wall or the cover plate.

[0085] In the battery module, the cover plate 20 is a large plastic plate. Fixing it only around its perimeter can cause the center to collapse or bulge, affecting the overall stability and sealing of the energy storage power supply 100. To address this issue, a support structure can be installed on either the mounting wall 50 or the cover plate 20 to ensure the flatness and stability of the cover plate 20.

[0086] The support structure is installed on the mounting wall 50 or the cover plate 20 to ensure that the mounting wall 50 and the cover plate 20 can be tightly abutted together. When setting the support structure on the mounting wall 50, it is necessary to ensure that the support structure does not interfere with the battery cells 30 or other internal components. When choosing to set the support structure on the cover plate 20, the support structure should be designed to match the corresponding part on the mounting wall 50 so that it can fit tightly during assembly. The support structure can be designed as multiple point supports, columnar supports, or mesh supports to distribute and support the weight of the cover plate 20.

[0087] In some embodiments, the supporting structure is a boss 91, one of the mounting wall 50 or the cover plate 20 is provided with the boss 91, and the other of the mounting wall 50 or the cover plate 30 is provided with a glue dispensing groove 92, the glue dispensing groove 92 is injected with glue, and the boss 91 is inserted into the glue dispensing groove 92.

[0088] See also Figure 10 and Figure 11 In this embodiment, protrusions 91 are evenly distributed on the cover plate 20, and adhesive grooves 92 are evenly distributed on the mounting wall 50 to mate with the protrusions 91. The abutment between the protrusions 91 and the adhesive grooves 92 provides support, preventing the cover plate 20 from collapsing and pressing against the busbars or otherwise deforming and affecting its appearance. Furthermore, adhesive is injected into the adhesive grooves 92, which bonds the protrusions 91 and the adhesive grooves 92, further enhancing the connection between the cover plate 20 and the mounting wall 50.

[0089] Throughout this specification, reference to terms such as "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0090] 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 intent 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 housing, wherein a housing is formed with a housing cavity, wherein a plurality of battery cells are fixed in the housing cavity, wherein the housing has a mounting wall, wherein the mounting wall is formed with a through hole, and wherein the through hole is connected to the outside of the housing cavity; A cover plate is provided on a side of the installation wall away from the accommodating cavity, the cover plate and the shell form an accommodating space, and the explosion-proof valve of the battery cell is connected to the accommodating space through the through hole.

2. The energy storage power supply according to claim 1, characterized in that: The accommodating space is further provided with a pressure relief channel communicating with the accommodating cavity or the outside of the shell.

3. The energy storage power supply according to claim 1, characterized in that: The mounting wall is located on one side of the accommodating cavity and is formed with a fixing structure for fixing the battery core, and the through hole is formed in the fixing structure.

4. The energy storage power supply according to claim 3, characterized in that: The electrodes of the battery core are communicated with the accommodating space through the through holes. The accommodating space is provided with a busbar, and the busbar is electrically connected to the electrodes of the battery core.

5. The energy storage power supply according to claim 3, 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 provided at the bottom of the receiving groove.

6. The energy storage power supply according to claim 3, characterized in that: The energy storage power supply further includes a fixing bracket connected to a side wall of the accommodating cavity to fix one end of the battery core to the fixing structure.

7. The energy storage power supply according to claim 6, characterized in that: The energy storage power supply further includes an inverter, which is fixed to the fixing bracket.

8. The energy storage power supply according to claim 1, characterized in that: A groove is formed on the periphery of one of the cover plate and the installation wall, and a protrusion is formed on the periphery of the other one, and the protrusion is inserted into the groove.

9. The energy storage power supply according to claim 8, characterized in that: The groove is filled with glue.

10. The energy storage power supply according to claim 8, characterized in that: An elastic sealing member is placed in the groove, and the protrusion abuts against the elastic sealing member.

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

12. The energy storage power supply according to claim 1, characterized in that: One of the mounting wall or the cover plate is provided with a support structure, and the support structure abuts against the other of the mounting wall or the cover plate.

13. The energy storage power supply according to claim 12, characterized in that: The supporting structure is a convex column, one of the mounting wall or the cover plate is provided with the convex column, the other of the mounting wall or the cover plate is provided with a glue dispensing groove, the glue dispensing groove is injected with glue, and the convex column is inserted into the glue dispensing groove.

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