Energy storage power supply

Abstract

The present invention relates to energy storage equipment technology, and the present invention solves or alleviates the problems of complex assembly and limited internal space of energy storage power supplies. The present invention discloses an energy storage power supply. The energy storage power supply includes a shell, a battery module, an inverter and a ventilation member. A accommodating cavity is provided in the shell, and a plurality of first fixing grooves are provided on the inner wall of the accommodating cavity; the battery module is located in the accommodating cavity, and the battery module includes a plurality of battery cells, and one end of the battery cell is accommodated in the first fixing groove; the inverter is arranged in the accommodating cavity, and the inverter is electrically connected to the battery module; and the ventilation member is fixedly connected to the shell, and the ventilation member includes an integrally formed ventilation part and a fixing part, the ventilation part constitutes a part of the shell and is provided with a ventilation hole connected to the accommodating cavity, the fixing part is located in the accommodating cavity, and the fixing part fixes one end of the plurality of battery cells to the first fixing groove. In the above energy storage power supply, the assembly process of the energy storage power supply can be reduced and the extra bracket for fixing the battery cells can be saved, which is conducive to improving the space utilization of the energy storage power supply.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy storage equipment, and in particular relates to an energy storage power supply. Background Art

[0002] Existing energy storage power supply products include a housing, battery module, and inverter. The battery module is assembled into a module with multiple cells using two brackets and then fixed inside the housing. The inverter is electrically connected to the battery module to achieve power output. Due to the high heat generated by the inverter, ventilation plates are generally installed on the housing for air cooling. Due to the complex ventilation hole structure of the ventilation plate, the ventilation plates are often formed independently and exist in pairs. They are generally installed on the housing after the battery module and inverter are assembled.

[0003] The inventors realized that there are many problems with the existing energy storage power supply structure: 1) There are a large number of shells, requiring at least 5 or more shells, including: a first shell and a second shell forming a accommodating cavity, two ventilation plates and a bracket; 2) The assembly process is complicated, and the battery cells need to be fixed to the shell through the bracket first, and then the ventilation plates are fixed one by one, which increases the assembly and fastening steps. Summary of the Invention

[0004] The embodiments of the present invention provide an energy storage power supply to solve at least one of the above-mentioned technical problems.

[0005] An energy storage power supply provided by an embodiment of the present invention includes:

[0006] A housing, wherein a housing cavity is provided in the housing, and a plurality of first fixing grooves are provided on an inner side wall of the housing cavity;

[0007] a battery module, the battery module being located in the accommodating cavity, the battery module comprising a plurality of battery cells, one end of each battery cell being accommodated in the first fixing groove;

[0008] an inverter, the inverter being disposed in the accommodating cavity and electrically connected to the battery module;

[0009] A ventilation member is fixedly connected to the shell, and the ventilation member includes an integrally formed ventilation portion and a fixing portion. The ventilation portion constitutes a part of the shell and is provided with a ventilation hole connected to the accommodating cavity. The fixing portion is located in the accommodating cavity, and the fixing portion fixes one end of the multiple battery cells to the first fixing groove.

[0010] In the above-mentioned energy storage power supply, the fixing portion and the ventilation portion are integrally formed, and the fixing portion fixes one end of the plurality of battery cells to a first fixing groove provided on the inner side wall of the accommodating cavity, thereby effectively fixing and installing the battery cells. This can reduce the assembly process of the energy storage power supply and save additional brackets for fixing the battery cells, which is conducive to improving the space utilization of the energy storage power supply.

[0011] In some embodiments, the fixing portion is provided with a plurality of second fixing grooves, and the other end of the battery cell is accommodated in the second fixing groove.

[0012] In the above energy storage power supply, the second fixing groove and the first fixing groove respectively fix the two ends of the battery cell, so that the multiple battery cells can be effectively fixed and installed in the accommodating cavity.

[0013] In some embodiments, the ventilation member includes two ventilation parts that are oppositely arranged, and the fixing part is connected to the two ventilation parts and is located between the two ventilation parts.

[0014] In the above energy storage power supply, the fixed portion can be fixedly connected to the shell through the ventilation portion, and the two ventilation portions are arranged opposite to each other to form a convection channel.

[0015] In some embodiments, the fixing portion is connected to the inner wall of the accommodating cavity through a fastener to fix the plurality of battery cells to the first fixing groove.

[0016] In the above energy storage power supply, the fixing portion can be fixedly connected to the housing, thereby improving the installation reliability of the battery cell to a certain extent.

[0017] In certain embodiments, the inverter is fixed on the fixing portion, and the ventilation hole faces the inverter.

[0018] In the above energy storage power supply, the inverter can be cooled.

[0019] In some embodiments, the housing includes a first shell and a second shell, wherein the first shell is detachably connected to the second shell and together with the ventilation portion, forms the accommodating cavity.

[0020] The above energy storage power supply is easy to install or repair.

[0021] In some embodiments, the first shell and the second shell are connected to form the gap, the ventilation part is accommodated in the gap, the peripheral wall of the gap is provided with a slot, and the outer edge of the ventilation part is clamped in the slot to fix the ventilation part to the gap.

[0022] In the above energy storage power supply, the ventilation member can be fixedly connected to the shell.

[0023] In some embodiments, the energy storage power supply further includes a plurality of first connecting plates and a plurality of second connecting plates, the battery cell includes a body, a first electrode and a second electrode, and the first electrode and the second electrode are respectively provided at both ends of the length direction of the body;

[0024] A first through hole is provided on the bottom wall of the first fixing groove, and the first electrode faces the first through hole;

[0025] A second through hole is provided on the bottom wall of the second fixing groove, and the second electrode faces the second through hole;

[0026] The first connecting piece is fixed to the outer wall of the housing and electrically connected to the first electrodes of the plurality of battery cells. The second connecting piece is fixed to the fixing portion and electrically connected to the second electrodes of the plurality of battery cells.

[0027] In the above energy storage power supply, the assembly process of the energy storage power supply can be reduced to a certain extent and additional brackets for fixing the battery cells can be saved.

[0028] In some embodiments, the energy storage power supply further includes a cover plate, a receiving groove is provided on the outer wall of the shell, the first through hole passes through the bottom wall of the receiving groove, the first connecting piece is located in the receiving groove, and the cover plate is provided on the outer wall of the shell and covers the receiving groove.

[0029] In the above energy storage power supply, it is beneficial for the battery cell as a whole to supply energy to the electrical equipment and reduce the overall volume of the energy storage power supply.

[0030] In some embodiments, the energy storage power supply further includes a plurality of third connecting pieces, the battery cell includes a body, a first electrode and a second electrode, and the first electrode and the second electrode are provided at one end of the body;

[0031] A third through hole and a fourth through hole are provided on the bottom wall of the second fixing groove, the first electrode faces the third through hole, the second electrode faces the fourth through hole, the third connecting piece is fixed to the fixing portion, and the third connecting piece electrically connects the first electrode of the battery cell and the second electrode of the adjacent battery cell.

[0032] In the above energy storage power supply, the assembly process of the energy storage power supply can be reduced to a certain extent and additional brackets for fixing the battery cells can be saved.

[0033] Additional aspects and advantages of the embodiments of the present invention will be given in part in the following description and in part will be obvious from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which:

[0035] Figure 1 Schematic diagram of the structure of the energy storage power supply according to the embodiment of the present invention;

[0036] Figure 2 is an exploded schematic diagram of an energy storage power supply according to an embodiment of the present invention;

[0037] Figure 3 is another exploded schematic diagram of the energy storage power supply according to an embodiment of the present invention;

[0038] Figure 4 It is a schematic structural diagram of a battery module according to an embodiment of the present invention.

[0039] Description of main component reference numerals:

[0040] Shell-10, first shell-11, second shell-12, notch-13, first notch-13a, second notch-13b, accommodating chamber-14, first fixing groove-141, surrounding wall-142, accommodating groove-142a, airflow gap-15, battery module-20, battery cell-21, body-211, first electrode-211a, second electrode-211b, inverter-30, ventilation member-40, ventilation part-41, ventilation hole-411, first ventilation hole-411a, second ventilation hole-411b, fixing part-42, battery management system-50, main board-60, panel-70, interface-71, button-72, first connecting piece-81, second connecting piece-82, cover plate-90, energy storage power supply-100. DETAILED DESCRIPTION

[0041] The embodiments of the present invention are described in detail below, examples of which 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 invention, and are not to be construed as limiting the present invention.

[0042] In the description of the present invention, 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, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. In the description of the present invention, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0043] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, removable connections, or integral connections. They may refer to mechanical connections or electrical connections. They may refer to direct connections or indirect connections through an intermediary, and they may refer to internal communication between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0044] In the present invention, 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. Furthermore, 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.

[0045] The disclosure herein provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described herein. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention 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.

[0046] See also Figures 1 to 3 An energy storage power supply 100 provided in an embodiment of the present invention includes a shell 10, a battery module 20, an inverter 30 and a ventilation member 40. A accommodating cavity 14 is provided in the shell 10, and a plurality of first fixing grooves 141 are provided on the inner side wall of the accommodating cavity 14. The battery module 20 is located in the accommodating cavity 14, and the battery module 20 includes a plurality of battery cells 21, and one end of the battery cell 21 is accommodated in the first fixing groove 141. The inverter 30 is arranged in the accommodating cavity 14, and the inverter 30 is electrically connected to the battery module 20. The ventilation member 40 is fixedly connected to the shell 10, and the ventilation member 40 includes an integrally formed ventilation part 41 and a fixing part 42. The ventilation part 41 constitutes a part of the shell 10 and is provided with a ventilation hole 411 connected to the accommodating cavity 14. The fixing part 42 is located in the accommodating cavity 14, and the fixing part 42 fixes one end of the plurality of battery cells 21 to the first fixing groove 141.

[0047] In the above-mentioned energy storage power supply 100, the fixing portion 42 and the ventilation portion 41 are integrally formed, and the fixing portion 42 fixes one end of the plurality of battery cells 21 to the inner side wall of the accommodating cavity, thereby effectively fixing and installing the battery cells 21. This can reduce the assembly process of the energy storage power supply 100 and save additional brackets for fixing the battery cells 21, which is conducive to improving the space utilization of the energy storage power supply 100.

[0048] Specifically, the energy storage power supply 100 also includes a battery management system 50. The battery module 20, the battery management system 50, and the inverter 30 are electrically connected. Optionally, the battery module 20 is located within the housing 10 of the energy storage power supply 100. In one embodiment, the battery module 20 can be composed of multiple battery cells 21 connected in series, parallel, or in a hybrid manner to store and release electrical energy. Hybrid means that the multiple battery cells 21 are connected in both parallel and series.

[0049] The inverter 30 is used to convert the direct current (DC) stored in the battery module 20 into alternating current (AC), and also to convert AC power input from an AC power source into DC power to charge the battery cells 21. During discharge, the battery cells 21 convert stored chemical energy into DC power, and the inverter 30 converts the DC power output from the battery module 20 into AC power for external devices.

[0050] The battery management system 50 is the management system of the energy storage power supply 100, used to monitor, control, and protect the safe and stable operation of the battery module 20. During the charging and discharging process, the battery management system 50 monitors the status of the battery module 20 and outputs corresponding control instructions to ensure the safe and stable operation of the battery module 20.

[0051] In the related art, as competition in the portable energy storage market intensifies, consumers are increasingly demanding higher performance from energy storage power supplies. In particular, consumers expect longer and more stable power to meet their diverse needs. This requires energy storage power supplies to maintain sufficient structural strength while maximizing energy density to store more energy within a limited volume. Existing energy storage power supply products consist of a housing, battery module, and inverter. The battery module, assembled from multiple cells using two brackets, is secured within the housing. The inverter is electrically connected to the battery module to generate power. Due to the high heat generation of the inverter, ventilation panels are typically installed on the housing for air cooling. Due to the complex ventilation hole structure of the ventilation panels, these panels are often formed separately and in pairs. They are typically installed on the housing after the battery module and inverter are assembled. The internal design of these products consumes valuable internal space within the energy storage power supply, limiting further improvements in space utilization. Therefore, a new internal structure of the energy storage power supply is needed to further optimize the space of the energy storage power supply to increase the energy density of the energy storage power supply and reduce the overall weight and volume of the energy storage power supply.

[0052] In the embodiment of the present invention, please combine Figure 2 and Figure 3 The length direction of the battery cell 21 is the vertical direction. At least a portion of the housing 10 of the energy storage power supply 100 can be enclosed to form a receiving cavity 14, which is used to accommodate the battery cell 21. Multiple battery cells 21 can be placed vertically in the receiving cavity 14, that is, placed in the vertical direction.

[0053] In one embodiment, the inner side wall of the accommodating cavity 14 may be the bottom wall of the accommodating cavity 14. Figure 2 and Figure 3 In the embodiment, a plurality of first fixing grooves 141 are provided on the bottom wall of the accommodating cavity 14 , and one end of the battery cell 21 can be accommodated in the first fixing groove 141 .

[0054] The ventilation portion 41 of the ventilation member 40 can enclose at least a portion of the accommodating cavity 14, and the ventilation portion 41 is provided with a plurality of ventilation holes 411 that communicate with the accommodating cavity 14. The ventilation holes 411 can be used to exchange heat between components such as the inverter 30 and the battery module 20 and the outside world, thereby dissipating heat. The fixing portion 42 is integrally formed with the ventilation portion 41, and the fixing portion 42 can secure one end of the plurality of battery cells 21 to the first fixing slot 141, thereby reducing the need for fixing brackets, thereby simplifying the internal structure of the energy storage power supply 100, reducing the assembly process of the energy storage power supply 100, and eliminating the need for additional brackets for fixing the battery cells 21. This improves the space utilization of the energy storage power supply 100 to a certain extent, achieving a lightweight design for the product.

[0055] exist Figures 2 to 4In an embodiment, the battery cell 21 is a cylindrical battery cell 21, and the first fixing groove 141 may be a cylindrical groove adapted to the battery cell 21. In one embodiment, the diameter of the cylindrical groove is equal to the diameter of the battery cell 21, so that the battery cell 21 can be fixed in the cylindrical groove. In one embodiment, the diameter of the cylindrical groove may be slightly smaller than the diameter of the battery cell 21, thereby increasing the fixing strength through interference fit. The diameter of the cylindrical groove of the first fixing groove 141 can be specifically defined according to the diameter of the battery cell 21, and the present invention does not make specific limitations on this.

[0056] It is understandable that the first fixing groove 141 can also be set to a triangle, polygon or other irregular shape, and the diameter of its largest inscribed circle is kept to meet the above conditions.

[0057] In some embodiments, the first fixing groove 141 may be provided with a rib that is interference-fitted with the battery cell 21 , or may be in the form of a clamp or a clip to fix the battery cell 21 .

[0058] Optionally, in other embodiments, the battery cell 21 may also be a square battery cell 21. In the case where the battery cell 21 is a square battery cell 21, the shape of the first fixing groove 141 is also a corresponding square.

[0059] Optionally, combine Figure 3 A surrounding wall 142 is further provided on the inner side wall of the accommodating cavity 14 , and the surrounding wall 142 and the side wall of the accommodating cavity 14 can form an accommodating groove 142 a to accommodate multiple first fixing grooves 141 , thereby increasing the fixing strength of the first fixing groove 141 to the battery cell 21 .

[0060] Optionally, the first fixing groove 141 can be integrally formed with the shell 10 or connected to the bottom wall of the accommodating cavity 14 in other fixed connection ways, so that the battery cell 21 can be relatively fixedly connected to the shell 10, thereby improving the overall strength to a certain extent.

[0061] The number of first fixing slots 141 is consistent with the number of battery cells 21, so that one end of all battery cells 21 can be fixed in a first fixing slot 141. The number of first fixing slots 141 can be specifically limited according to actual conditions and is not specifically limited in the present invention. In one example, the number of first fixing slots 141 and the number of battery cells 21 are both 13.

[0062] The fixing portion 42 is disposed within the accommodating cavity 14 and separates the battery module 20 from the inverter 30. The battery module 20 is located below the fixing portion 42 and is electrically connected to the inverter 30, which is located above the fixing portion 42. The fixing portion 42 secures the multiple battery cells 21 to the first fixing slots 141. The fixing portion 42 is connected to the housing 10 via the vent 41. The fixing portion 42 and the bottom wall of the accommodating cavity 14 jointly provide fixed support for the battery cells 21, thereby effectively securing the battery cells 21.

[0063] It is understood that in other embodiments, the battery cell 21 can also be placed horizontally or in other directions within the accommodating cavity 14. When the battery cell 21 is placed horizontally, the fixing portion 42 can work together with one of the front, rear, left, and right side walls of the accommodating cavity 14 to fix the battery cell 21.

[0064] In some embodiments, the fixing portion 42 is provided with a plurality of second fixing grooves (not shown), and the other end of the battery cell 21 is received in the second fixing groove.

[0065] In this way, the second fixing groove and the first fixing groove 141 respectively fix the two ends of the battery cell 21 , so that the multiple battery cells 21 can be effectively fixed and installed in the accommodating cavity 14 .

[0066] Specifically, in Figure 2 and Figure 3 In the embodiment, the bottom wall of the accommodating cavity 14 is provided with a plurality of first fixing grooves 141, into which one end of the battery cell 21 can be accommodated. The side of the fixing portion 42 facing the battery module 20 is provided with a plurality of second fixing grooves, which are arranged opposite the first fixing grooves 141, into which the other end of the battery cell 21 can be accommodated. Therefore, the second fixing grooves and the first fixing grooves 141 can effectively secure the battery cell 21 together without first assembling the battery module 20 and then installing it into the housing 10. This allows the battery cell 21 to be directly integrated into the housing 10, reducing the number of assembly steps to a certain extent and also eliminating the need for additional brackets for securing the battery cell 21, thereby improving the space utilization within the energy storage power supply 100 to a certain extent.

[0067] exist Figures 2 to 4 In the embodiment, the battery cell 21 is a cylindrical battery cell 21, and the second fixing groove may be a cylindrical groove adapted to the battery cell 21. In one embodiment, the diameter of the cylindrical groove is equal to the diameter of the battery cell 21, so that the battery cell 21 can be fixed in the cylindrical groove. In one embodiment, the diameter of the cylindrical groove may be slightly smaller than the diameter of the battery cell 21, thereby increasing the fixing strength through interference fit. Optionally, the diameter of the cylindrical groove of the second fixing groove and the diameter of the cylindrical groove of the first fixing groove 141 may be equal or unequal. The diameter of the cylindrical groove of the second fixing groove may be specifically defined according to the diameter of the battery cell 21, and the present invention does not make specific limitations on this.

[0068] It is understandable that the second fixing groove can also be set to a triangle, polygon or other irregular shape, and the diameter of its largest inscribed circle is maintained to meet the above conditions. In some embodiments, the second fixing groove can be provided with a rib that is interference-fitted with the battery cell 21, or it can be fixed in the form of a clamp or clip. Optionally, in other embodiments, the battery cell 21 can also be a square battery cell 21. In the case where the battery cell 21 is a square battery cell 21, the shape of the second fixing groove is also a corresponding square.

[0069] Optionally, the second fixing groove can be integrally formed with the fixing portion 42 or connected to the side of the fixing portion 42 facing the battery module 20 in other fixed connection methods, so that the battery cell 21 can be relatively fixedly connected to the shell 10 and the fixing portion 42, thereby improving the overall strength to a certain extent.

[0070] The number of the second fixing slots is consistent with the number of the first fixing slots 141 and the battery cells 21. The number of the second fixing slots can be specifically limited according to actual conditions, and the present invention does not impose any specific limitation on this.

[0071] In some embodiments, the ventilation member 40 includes two ventilation portions 41 disposed opposite to each other, and the fixing portion 42 is connected to the two ventilation portions 41 and is located between the two ventilation portions 41 .

[0072] In this way, the fixing portion 42 can be fixedly connected to the housing 10 through the ventilation portion 41 , and the two ventilation portions 41 are arranged opposite to each other to form a convection channel.

[0073] Specifically, in one embodiment, please combine Figure 2 and Figure 3 The two ventilation parts 41 of the ventilation member 40 are respectively located on the left and right sides of the energy storage power supply 100, and the two ventilation parts 41 are arranged opposite to each other, so that the ventilation holes 411 on the two ventilation parts 41 are arranged opposite to each other, which can form a convection channel, so that the inverter 30 and battery module 20 and other components in the energy storage power supply 100 can exchange heat with the outside air through the two opposite ventilation holes 411, so that the heat generated during operation can be dissipated to the outside through the convection channel.

[0074] The left and right sides of the fixing portion 42 are respectively connected to the two ventilation portions 41, so that the fixing portion 42 can be fixedly connected to the shell 10, fixing the multiple battery cells 21 in the first fixing groove 141 set in the accommodating cavity 14, providing fixed support for the battery cells 21, and reducing the use of the fixing bracket to a certain extent.

[0075] In some embodiments, the fixing portion 42 is connected to the inner wall of the accommodating cavity 14 via a fastener to fix the plurality of battery cells 21 to the first fixing groove 141 .

[0076] In this way, the fixing portion 42 can be fixedly connected to the housing 10 to fix the plurality of battery cells 21 in the first fixing grooves 141 , thereby improving the installation reliability of the battery cells 21 to a certain extent.

[0077] Specifically, please combine Figure 2 and Figure 3 The battery module 20 is located between the fixing portion 42 and the inner sidewall of the accommodating cavity 14, so that the fixing portion 42 can fix the multiple battery cells 21 to the first fixing groove 141. The fixing portion 42 and the inner sidewall of the accommodating cavity 14 together provide fixed support for the battery cells 21, thereby effectively fixing the battery cells 21.

[0078] The fixing portion 42 can be connected to the inner sidewall of the accommodating cavity 14 via fasteners, thereby increasing the clamping force of the fixing portion 42 and the inner sidewall of the accommodating cavity 14 on the battery cells 21, thereby better securing the multiple battery cells 21 in the first fixing grooves 141 and, to a certain extent, improving the installation reliability of the battery cells 21. Fasteners include, but are not limited to, screws, pins, rivets, etc., and are not specifically limited in the present invention.

[0079] In some embodiments, the inverter 30 is fixed on the fixing portion 42 , and the ventilation hole 411 faces the inverter 30 .

[0080] Specifically, please combine Figure 2 and Figure 3 The inverter 30 is located above the fixing portion 42 and is fixedly connected to the fixing portion 42. The inverter 30 is provided corresponding to the ventilation holes 411. When the energy storage power supply 100 is operating, external airflow can enter the accommodating cavity 14 through the ventilation holes 411 of one ventilation portion 41 to cool the inverter 30. The cooled airflow then flows out through the ventilation holes 411 of the other ventilation portion 41 to dissipate heat to the outside.

[0081] Optionally, the ventilation holes 411 include a first ventilation hole 411a and a second ventilation hole 411b. For the same ventilation portion 41, the first ventilation hole 411a is located above the second ventilation hole 411b. The left and right sides of the fixed portion 42 are respectively connected to the two ventilation portions 41. The ventilation portions 41 enclose at least part of the accommodating cavity 14. The connection formed by the fixed portion 42 and the ventilation portion 41 is located between the first ventilation hole 411a and the second ventilation hole 411b, thereby dividing the accommodating cavity 14 into two parts, each of which accommodates the inverter 30 and the battery module 20.

[0082] exist Figure 2 and Figure 3In the embodiment, the inverter 30 is located above the fixed portion 42, corresponding to the first ventilation hole 411a; the battery module 20 and the battery management system 50 are located below the fixed portion 42, corresponding to the second ventilation hole 411b. The first ventilation hole 411a and the second ventilation hole 411b can dissipate heat from the inverter 30 and the battery module 20, respectively, ensuring a certain degree of heat dissipation for both. When the energy storage power supply 100 is operating, external airflow can enter the accommodating cavity 14 from the first ventilation hole 411a of one ventilation portion 41 to form a first airflow layer, cooling the inverter 30. The cooled airflow then flows out from the first ventilation hole 411a of the other ventilation portion 41. Alternatively, external airflow can enter the accommodating cavity 14 from the second ventilation hole 411b of one ventilation portion 41 to form a second airflow layer, cooling the battery module 20. The cooled airflow then flows out from the second ventilation hole 411b of the other ventilation portion 41. Because the fixing portion 42 separates the first and second airflow layers, they do not interfere with each other, which helps improve the heat dissipation effect of the first airflow layer on the inverter 30 and the heat dissipation effect of the second airflow layer on the battery module 20. The number of first ventilation holes 411a and second ventilation holes 411b can be the same or different. The number of first ventilation holes 411a and second ventilation holes 411b can be specifically limited according to actual circumstances and is not specifically limited in the present invention.

[0083] Optionally, the energy storage power supply 100 may be equipped with a first fan, which may be located between the inverter 30 and the first ventilation hole 411a, and / or between the battery module 20 and the second ventilation hole 411b. This can accelerate air circulation between the inverter 30 and the battery module 20 and the outside world, further improving heat dissipation efficiency. Optionally, the inverter 30 may be equipped with a second fan, which generates airflow in the same direction as the first fan, thereby accelerating heat dissipation from the inverter 30.

[0084] In one embodiment, please combine Figure 2 The battery management system 50 is located between the battery module 20 and the second ventilation hole 411b, and one end of the battery management system 50 is connected to the bottom wall of the accommodating cavity 14, and there is a gap between the other end and the fixing part 42, so that an air flow gap 15 is formed between the battery management system 50 and the fixing part 42. The air flow gap 15 is connected to the second ventilation hole 411b, thereby forming an air flow channel. The battery module 20 can exchange heat with the outside air through the air flow gap 15 and the second ventilation hole 411b, so that the heat generated during operation can be smoothly dissipated, which is conducive to improving the heat dissipation efficiency and meeting the heat dissipation requirements of the battery module 20 and the battery management system 50.

[0085] Optionally, combine Figures 1 to 3The energy storage power supply 100 may further include a panel 70 provided on the housing 10. The panel 70 encloses a portion of the accommodating cavity 14 and is connected to the two ventilation portions 41 on both sides. A display screen may be provided on the panel 70, which may display information such as the current power level and temperature of the energy storage power supply 100. In the embodiment shown in the figure, an interface 71 and a button 72 are provided on the panel 70. The interface 71 is used to connect an electrical device or a charging device. The button 72 is used to control the operation of the energy storage power supply 100 (such as turning it on and off, viewing information, etc.). The interface 71 includes but is not limited to an AC input interface, an AC output interface, a photovoltaic input interface, a DC input interface, a DC output interface, and the like.

[0086] Optionally, the energy storage power supply 100 further includes a mainboard 60. In one embodiment, please combine Figure 2 and Figure 3 The main board 60 and the battery module 20 are both arranged below the fixed part 42, and the main board 60 is located between the panel 70 and the battery module 20, and is electrically connected to the battery module 20, the inverter 30 and the interface 71 and / or the button 72, so that the working status of the battery module 20 and the inverter 30 can be controlled through the interface 71 and / or the button 72 and the main board 60.

[0087] In the illustrated embodiment, the panel 70 is the front panel, the main board 60 is located on the front side of the battery module 20, the battery management system 50 is located between the right ventilation portion 41 and the right side of the battery module 20, and the inverter 30 is located above the battery module 20. Therefore, the inverter 30, the main board 60 and the battery management system 50 can be reasonably arranged around the battery module 20, effectively utilizing the internal space of the energy storage power supply 100 to achieve a compact energy storage power supply 100.

[0088] In some embodiments, the housing 10 includes a first shell 11 and a second shell 12 . The first shell 11 is detachably connected to the second shell 12 and together with the ventilation portion 41 forms a receiving cavity 14 .

[0089] This makes installation or repair easier.

[0090] Specifically, please combine Figure 3 The housing 10 includes a first shell 11 at the bottom and a second shell 12 at the top. The first shell 11 and the second shell 12 can be detachably connected to each other using threads, snaps, or clamps. The first shell 11, the vent 41, and the second shell 12 together form a receiving cavity 14 that can accommodate the battery cell 21. This increases the convenience of assembly or disassembly for maintenance.

[0091] In some embodiments, the first shell 11 and the second shell 12 are connected to form a notch 13, and the ventilation portion 41 is accommodated in the notch 13. The peripheral wall of the notch 13 is provided with a slot, and the outer edge of the ventilation portion 41 is clamped in the slot to fix the ventilation portion 41 to the notch 13.

[0092] In this way, the ventilation element 40 can be fixedly connected to the housing 10 .

[0093] Specifically, please combine Figure 3 The notch 13 may include a first notch 13a and a second notch 13b. The first notch 13a is provided in the first shell 11, and the second notch 13b is provided in the second shell 12. The first shell 11 and the second shell 12 are connected so that the first notch 13a and the second notch 13b are connected to form the notch 13. A portion of the vent 41 is accommodated in the first notch 13a of the side wall of the first shell 11, and another portion of the vent 41 is accommodated in the second notch 13b of the side wall of the second shell 12. A slot is provided on the peripheral wall of the notch 13. The outer edge of the vent 41 fits into the slot, so that the outer edge of the vent 41 can be retained in the slot, thereby fixing the vent 41 to the notch 13, thereby fixing the vent 41 to the housing 10.

[0094] Optionally, the shapes of the first notch 13 a and the second notch 13 b match the shape of the ventilation portion 41 , so that the ventilation portion 41 can be smoothly embedded in the notch 13 and fit tightly against the side walls of the first shell 11 and the second shell 12 .

[0095] In some embodiments, the energy storage power supply 100 further includes a first connecting piece 81 and a second connecting piece 82, and the battery cell 21 includes a body 211, a first electrode 211a and a second electrode 211b, wherein the first electrode 211a and the second electrode 211b are respectively provided at both ends of the length direction of the body 211;

[0096] A first through hole (not shown) is formed on the bottom wall of the first fixing groove 141 , and the first electrode 211 a faces the first through hole.

[0097] A second through hole is provided on the bottom wall of the second fixing groove, and the second electrode 211b faces the second through hole.

[0098] The first connecting piece 81 is fixed to the outer wall of the housing 10 and electrically connects the first electrodes 211 a of the battery cells 21 . The second connecting piece 82 is fixed to the fixing portion 42 and electrically connects the second electrodes 211 b of the battery cells 21 .

[0099] In this way, the assembly process of the energy storage power supply 100 can be reduced to a certain extent and additional brackets for fixing the battery cells 21 can be saved.

[0100] Specifically, the energy storage power supply 100 includes a first connecting piece 81 and a second connecting piece 82. The first connecting piece 81 and the second connecting piece 82 play the role of connecting and conducting current in the energy storage power supply 100. The energy storage power supply 100 can increase the diversity of the output current through the first connecting piece 81 and the second connecting piece 82. Figure 4, the length direction of the body 211 of the battery cell 21 is the up-down direction. The first electrode 211a and the second electrode 211b of the battery cell 21 are located at both ends of the up-down direction of the body 211, and are current ports for supplying or charging energy. In one embodiment, when two adjacent battery cells 21 are connected in series, the first electrode 211a of one battery cell 21 is a positive electrode and the second electrode 211b is a negative electrode, and the first electrode 211a of the other battery cell 21 is a negative electrode and the second electrode 211b is a positive electrode. In one embodiment, when two adjacent battery cells 21 are connected in parallel, the first electrodes 211a of the two battery cells 21 are both negative or positive electrodes, and the second electrodes 211b are both positive or negative electrodes. One end of the body 211 provided with the first electrode 211a is accommodated in the first fixing groove 141, and one end of the body provided with the second electrode 211b is accommodated in the second fixing groove, so that the first fixing groove 141 and the second fixing groove can position and fix the battery cell 21.

[0101] Optionally, in Figure 2 and Figure 3 In the embodiment, a plurality of first fixing grooves 141 are provided at the bottom of the accommodating cavity 14, one end of the body 211 can be accommodated in the first fixing groove 141 and the first electrode 211a is penetrated by the first through hole, so that the bottom end of the body 211 can be fixed; a plurality of second fixing grooves are provided on the lower side of the fixing portion 42, the other end of the body 211 can be accommodated in the second fixing groove and the second electrode 211b is penetrated by the second through hole, so that the top end of the body 211 can be fixed, the first electrode 211a is penetrated by the first through hole and the second electrode 211b is penetrated by the second through hole, which can facilitate the electrical connection of the battery cell 21 with other electrical components of the energy storage power supply 100 (such as the inverter 30, the battery management system 50), so that the battery cell 21 can be charged and discharged. Therefore, the battery cells 21 can be effectively fixed together without first assembling into a battery module 20 and then installing it into the shell 10, so that the battery cells 21 are directly integrated into the shell 10, which reduces the assembly process to a certain extent. At the same time, it can also save additional brackets for fixing the battery cells 21, thereby improving the space utilization inside the energy storage power supply 100 to a certain extent.

[0102] Please combine Figure 3The first connecting piece 81 is fixedly connected to the outer wall of the shell 10 (i.e., the outer wall of the first shell 11), and the first electrode 211a is connected to the first connecting piece 81 through a first through-hole; the second connecting piece 82 is fixedly connected to the side of the fixing portion 42 facing away from the battery cell 21, and the second electrode 211b of the battery cell 21 is connected to the second connecting piece 82 through a second through-hole. Optionally, in one embodiment, the first connecting piece 81 can be connected to the first electrodes 211a of some of the battery cells 21, and the second connecting piece 82 can be connected to the second electrodes 211b of some of the battery cells 21, so that some of the battery cells 21 output electrical energy to the outside or input electrical energy to the inside in parallel. Multiple first connecting pieces 81 or multiple second connecting pieces 82 can output electrical energy to the outside or input electrical energy to the inside in series or in parallel.

[0103] The first connecting piece 81 and the second connecting piece 82 can be made of copper, aluminum, nickel or alloy materials. The first connecting piece 81 and the second connecting piece 82 can be electrically connected to the first electrode 211a and the second electrode 211b respectively by means including but not limited to laser welding, twisting, pressing, etc.

[0104] In some embodiments, the energy storage power supply 100 further includes a cover plate 90, a receiving groove (not shown) is provided on the outer wall of the shell 10, the first through hole passes through the bottom wall of the receiving groove, the first connecting piece 81 is located in the receiving groove, and the cover plate 90 is provided on the outer wall of the shell 10 and covers the receiving groove.

[0105] In this way, the battery cell 21 as a whole can provide energy to the electrical equipment and reduce the overall volume of the energy storage power supply 100.

[0106] Specifically, in one embodiment, when the battery cell 21 is placed vertically in the accommodating cavity 14 and the first fixing groove 141 is provided at the bottom of the accommodating cavity 14, the receiving groove is provided at the bottom of the shell 10. The bottom wall of the shell 10 (i.e., the outer wall of the first shell 11) is recessed inward to form a receiving groove, and the first electrode 211a of the battery cell 21 passes through the first fixing groove 141 through the first through hole to enter the receiving groove. The first connecting piece 81 can also be connected to the first electrode 211a in the receiving groove. In this way, the first electrode 211a and the first connecting piece 81 can be integrated at the bottom of the shell 10, thereby improving the overall integration level to reduce the product volume. Please combine Figure 3 By providing a cover plate 90 to cover the receiving groove, the integrity of the housing 10 can be further improved and the first electrode 211 a and the first connecting piece 81 can be protected.

[0107] Optionally, the cover plate 90 may be fixedly connected to the housing 10 by means including but not limited to bolts, pins, colloid, etc., which is not specifically limited in the present invention.

[0108] In some embodiments, the energy storage power supply 100 further includes a plurality of third connecting pieces, and the battery cell 21 includes a body 211, a first electrode 211a, and a second electrode 211b, wherein the first electrode 211a and the second electrode 211b are provided at one end of the body 211;

[0109] A third through hole and a fourth through hole are provided on the bottom wall of the second fixing groove. The first electrode 211a faces the third through hole, and the second electrode 211b faces the fourth through hole. The third connecting piece is fixed to the fixing portion 42. The third connecting piece electrically connects the first electrode 211a of the battery cell 21 and the second electrode 211b of the adjacent battery cell.

[0110] In this way, the assembly process of the energy storage power supply 100 can be reduced to a certain extent and additional brackets for fixing the battery cells 21 can be saved.

[0111] Specifically, in one embodiment, the first electrode 211a of a battery cell 21 is a positive electrode, and the second electrode 211b is a negative electrode. In one embodiment, the first electrode 211a of a battery cell 21 is a negative electrode, and the second electrode is a positive electrode. The first electrode 211a and the second electrode 211b are arranged at the same end of the body 211, and the other end of the body 211 is accommodated in the first fixing groove 141. A plurality of second fixing grooves are provided on the side of the fixing portion 42 facing the battery module 20, and a third through hole and a fourth through hole are provided on the bottom wall of the second fixing groove. The third through hole and the fourth through hole are respectively opposite to the first electrode 211a and the second electrode 211b provided on the body 211. One end of the first electrode 211a and the second electrode 211b provided on the body 211 can be accommodated in the second fixing groove, and the first electrode 211a is penetrated by the third through hole, and the second electrode 211b is penetrated by the fourth through hole, so that the top of the body 211 can be fixed. The third through-hole provided for the first electrode 211a and the fourth through-hole provided for the second electrode 211b facilitate electrical connection between the battery cell 21 and other electrical components of the energy storage power supply 100 (such as the inverter 30 and the battery management system 50), thereby enabling charging and discharging of the battery cell 21. Therefore, the battery cell 21 can be effectively secured without first assembling the battery module 20 and then installing it in the housing 10. This allows the battery cell 21 to be directly integrated into the housing 10, significantly reducing the number of assembly steps and eliminating the need for additional brackets for securing the battery cell 21, thereby improving the space utilization within the energy storage power supply 100.

[0112] The third connecting tab can connect the first electrode 211a of one battery cell 21 and the second electrode 211b of an adjacent battery cell 21. Specifically, the third connecting tab is fixedly connected to the side of the fixing portion 42 facing away from the battery cell 21. The first electrode 211a of one battery cell 21 is connected to the third connecting tab via the third through-hole, and the second electrode 211b of the adjacent battery cell 21 is connected to the third connecting tab via the fourth through-hole. This allows the battery cells 21 to be connected in series to output or input electrical energy.

[0113] The third connecting piece can be made of copper, aluminum, nickel or alloy material and can be electrically connected to the first electrode 211a and the second electrode 211b respectively by methods including but not limited to laser welding, twisting, pressing, etc.

[0114] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" indicate 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 invention. In this specification, illustrative uses 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.

[0115] Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An energy storage power supply, characterized in that: include: A housing, wherein a housing cavity is provided in the housing, and a plurality of first fixing grooves are provided on an inner side wall of the housing cavity; a battery module, the battery module being located in the accommodating cavity, the battery module comprising a plurality of battery cells, one end of each battery cell being accommodated in the first fixing groove; an inverter, the inverter being disposed in the accommodating cavity and electrically connected to the battery module; A ventilation member, the ventilation member is fixedly connected to the shell, the ventilation member includes an integrally formed ventilation portion and a fixing portion, the ventilation portion constitutes a part of the shell and is provided with a ventilation hole communicating with the accommodating cavity, the fixing portion is located in the accommodating cavity, the fixing portion fixes one end of the multiple battery cells to the first fixing groove, the fixing portion is provided with a plurality of second fixing grooves, the other end of the battery cell is accommodated in the second fixing groove, the ventilation member includes two oppositely arranged ventilation portions, the fixing portion is connected to the two ventilation portions and is located between the two ventilation portions; The housing includes a first shell and a second shell, wherein the first shell is detachably connected to the second shell and together with the ventilation portion form the accommodating cavity. The inner wall of the first shell is provided with a plurality of first fixing grooves, the fixing portion is connected to the first shell via fasteners to fix the plurality of battery cells in the first fixing grooves, and the inverter is fixed to the fixing portion or the second shell.

2. The energy storage power supply according to claim 1, characterized in that: The fixing portion is connected to the inner wall of the accommodating cavity through a fastener to fix the plurality of battery cells in the first fixing groove.

3. The energy storage power supply according to claim 1, characterized in that: The inverter is fixed on the fixing portion, and the ventilation hole faces the inverter.

4. The energy storage power supply according to claim 1, characterized in that: A gap is formed after the first shell and the second shell are connected, and the ventilation part is accommodated in the gap. A peripheral wall of the gap is provided with a clamping groove, and the outer edge of the ventilation part is clamped in the clamping groove to fix the ventilation part in the gap.

5. The energy storage power supply according to claim 1, characterized in that: The energy storage power supply further includes a plurality of first connecting plates and a plurality of second connecting plates, the battery cell includes a body, a first electrode and a second electrode, the first electrode and the second electrode are respectively provided at both ends of the length direction of the body; A first through hole is provided on the bottom wall of the first fixing groove, and the first electrode faces the first through hole; A second through hole is provided on the bottom wall of the second fixing groove, and the second electrode faces the second through hole; The first connecting piece is fixed to the outer wall of the housing and electrically connected to the first electrodes of the plurality of battery cells. The second connecting piece is fixed to the fixing portion and electrically connected to the second electrodes of the plurality of battery cells.

6. The energy storage power supply according to claim 5, characterized in that: The energy storage power supply also includes a cover plate, a receiving groove is provided on the outer wall of the shell, the first through hole passes through the bottom wall of the receiving groove, the first connecting piece is located in the receiving groove, and the cover plate is provided on the outer wall of the shell and covers the receiving groove.

7. The energy storage power supply according to claim 1, characterized in that: The energy storage power supply further includes a plurality of third connecting pieces, the battery cell includes a body, a first electrode and a second electrode, and the first electrode and the second electrode are arranged at one end of the body; A third through hole and a fourth through hole are provided on the bottom wall of the second fixing groove, the first electrode faces the third through hole, the second electrode faces the fourth through hole, the third connecting piece is fixed to the fixing portion, and the third connecting piece electrically connects the first electrode of the battery cell and the second electrode of the adjacent battery cell.

Images