Energy storage power supply

Abstract

The utility model discloses an energy storage power supply, which comprises a shell, a third shell, an inverter and a plurality of battery cells, a first mounting cavity is formed in the shell, a second mounting cavity is formed outside the shell, the plurality of battery cells are mounted in the second mounting cavity, and the third shell is configured to seal the second mounting cavity when the third shell is mounted on the shell. According to the energy storage power supply provided by the invention, the second mounting cavity is formed in the shell, and the multiple battery cells are fixed by using the second mounting cavity, so that a traditional bracket is omitted, the number of parts of the energy storage power supply is reduced, the size of the energy storage power supply is favorably reduced, and the cost of the energy storage power supply is reduced; and further improvement of energy density and space utilization rate of the energy storage power supply is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage devices, and more particularly, to an energy storage power supply. BACKGROUND

[0002] In the related art, an energy storage power supply usually needs to be provided with multiple battery cells. In order to ensure the stability of the battery cells, the multiple battery cells are usually assembled into a battery module through a support and then fixed in a shell. This results in a large number of spare parts, a large volume, and a high cost of the energy storage power supply. On the other hand, the support occupies a large space inside the energy storage power supply and limits the further improvement of the energy density and the space utilization of the energy storage power supply to some extent. CONTENT OF THE UTILITY MODEL

[0003] The present application provides an energy storage power supply to solve at least one of the above technical problems.

[0004] The energy storage power supply of the present application comprises:

[0005] a shell, a first mounting cavity is formed in the shell, and a second mounting cavity is formed outside the shell;

[0006] a plurality of battery cells, the plurality of battery cells are mounted in the second mounting cavity;

[0007] a third shell, the third shell is configured to close the second mounting cavity when the third shell is mounted on the shell;

[0008] an inverter, the inverter is mounted in the first mounting cavity and electrically connected with the plurality of battery cells.

[0009] The present application provides an energy storage power supply. By providing a second mounting cavity on the shell and fixing a plurality of battery cells by using the second mounting cavity, the traditional support is cancelled, the number of spare parts of the energy storage power supply is reduced, the volume of the energy storage power supply is reduced, the cost of the energy storage power supply is reduced, and the further improvement of the energy density and the space utilization of the energy storage power supply is facilitated.

[0010] In some embodiments, the shell comprises a first shell and a second shell, the first shell and the second shell are detachably connected, the second mounting cavity is provided on the second shell, the first shell and the second shell surround to form a first mounting cavity, and the third shell is mounted on the second shell.

[0011] In this way, the processing of the second mounting cavity is facilitated, and the electrical connection between the battery cells and the electrical connecting member is facilitated.

[0012] In some embodiments, the second shell and the third shell constitute part of the outer surface of the energy storage power supply.

[0013] Thus, the battery cell is integrated with the shell, the shell protects the internal structure of the energy storage power supply and also plays the role of a traditional support, realizing the one-purpose-multiple-use of the shell.

[0014] In some embodiments, a plurality of first positioning grooves are arranged on the inner wall of the second mounting cavity, one end of the battery cell is inserted into the first positioning groove, and the third shell fixes the one end of the battery cell to the first positioning groove.

[0015] Thus, the first positioning groove is used to fix the battery cell to prevent displacement of the battery cell when electrically connected with the electrical connector.

[0016] In some embodiments, a plurality of second positioning grooves are arranged on the third shell, and the other end of the battery cell is inserted into the second positioning groove.

[0017] Thus, the second positioning groove is used to fix the battery cell to prevent displacement of the battery cell when electrically connected with the electrical connector.

[0018] In some embodiments, the energy storage power supply further comprises an electrical connector, the electrical connector is arranged in the first mounting cavity, and the plurality of battery cells are electrically connected with the electrical connector.

[0019] Thus, the electrical connector is arranged in the first mounting cavity, which is convenient for connection with the battery cell and is conducive to improving the space utilization inside the energy storage power supply.

[0020] In some embodiments, a plurality of openings are formed on the inner wall of the first mounting cavity and communicate with the second mounting cavity, and the plurality of battery cells are electrically connected with the electrical connector through the openings.

[0021] Thus, the openings are arranged to facilitate electrical connection between the battery cell and the electrical connector.

[0022] In some embodiments, the battery cell comprises a positive electrode and a negative electrode, the positive electrode and the negative electrode are located at the same end of the battery cell, the positive electrode and the negative electrode communicate with the first mounting cavity through the openings, and the electrical connector connects the positive electrode of the battery cell and the negative electrode of the adjacent battery cell.

[0023] Thus, only the openings and the electrical connector are arranged on the same inner wall of the second mounting cavity, which simplifies the structure of the energy storage power supply and is also convenient for installation and fixation of the battery cell.

[0024] In some embodiments, the openings comprise a first opening and a second opening, and the first opening and the second opening are arranged corresponding to the positive electrode and the negative electrode, respectively.

[0025] Thus, the first opening and the second opening correspond to the positive electrode and the negative electrode of the battery cell, respectively, which is convenient for connection and distinction of the electrical connector.

[0026] In some embodiments, the housing is further provided with a partition, which is disposed on the surface of the second mounting cavity away from the battery cell and located between the first opening and the second opening.

[0027] In this way, the separator forms a barrier between the positive and negative terminals of the battery cell, preventing accidental contact of the electrical connectors when connecting the battery cell and causing a short circuit.

[0028] In some embodiments, the housing includes a plurality of first connecting posts located within the second mounting cavity, and the third housing includes a plurality of second connecting posts, wherein the first connecting posts are connected to the second connecting posts when the third housing is mounted on the housing.

[0029] Thus, the first connecting post and the second connecting post are used to connect the shell and the third shell, and the first connecting post helps to improve the structural strength of the shell, while the second connecting post helps to improve the structural strength of the third shell.

[0030] In some embodiments, the housing is provided with ventilation holes that allow the first mounting cavity to communicate with the outside.

[0031] In this way, the ventilation holes can be used to dissipate heat from the energy storage power supply, preventing the battery cells from thermally running away due to excessive internal temperature.

[0032] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0033] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0034] Figure 1 This is a schematic diagram of the energy storage power supply according to an embodiment of this application;

[0035] Figure 2 This is an assembly diagram of the energy storage power supply according to an embodiment of this application;

[0036] Figure 3 This is a schematic diagram of the structure of the second housing of the energy storage power supply according to an embodiment of this application;

[0037] Figure 4 This is a schematic diagram of the structure of the third housing of the energy storage power supply according to an embodiment of this application;

[0038] Figure 5 This is a schematic diagram of the structure of the second housing of the energy storage power supply according to an embodiment of this application;

[0039] Figure 6 is a structural schematic diagram of an electric core of the energy storage power supply of the embodiment of the present application.

[0040] Main element symbol explanation: energy storage power supply 100, shell 10, first shell 11, first mounting cavity 111, second shell 12, second mounting cavity 121, first positioning groove 122, opening 123, first opening 1231, second opening 1232, partition plate 124, first connecting column 125, decorative plate 13, ventilation hole 131, electric core 20, positive electrode 21, negative electrode 22, third shell 30, second positioning groove 31, second connecting column 32, electric connecting piece 40, handle 50, inverter 60, mainboard 70, panel 80, battery management system 90. DETAILED DESCRIPTION

[0041] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation to the present application. In the description of the present application, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0042] In the description of the present application, it is to be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected. It can be mechanically connected, or electrically connected. It can be directly connected, or indirectly connected through an intermediate medium. It can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] In this application, unless specifically stated and limited otherwise, "on" or "under" of a first feature with respect to a second feature can include direct contact between the first and second features, or can include indirect contact between the first and second features through other features therebetween. Also, "over", "above", and "on" of a first feature with respect to a second feature includes the first feature directly above and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. "Under", "below", and "underneath" of a first feature with respect to a second feature includes the first feature directly below and obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0044] The disclosure herein provides many different embodiments or examples for implementing different structures of the application. For the purpose of simplicity, the members and settings of certain examples are described in the present disclosure. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application can repeatedly refer to reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, which 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 can realize the application of other processes and / or the use of other materials.

[0045] In the related art, the energy storage power supply usually needs to be provided with multiple battery cells. In order to ensure the stability of the battery cells, the multiple battery cells are usually assembled into a battery module through a support and then fixed in a shell, which results in that the energy storage power supply has many spare parts, large volume and high cost. On the other hand, the support occupies a large space inside the energy storage power supply and limits the further improvement of the energy density and space utilization of the energy storage power supply to some extent.

[0046] Please refer to Figure 1 The present application provides an energy storage power supply 100, which comprises a shell 10, a third shell 30, an inverter 60 and multiple battery cells 20. The shell 10 forms a first mounting cavity 111 inside, and a second mounting cavity 121 outside. The multiple battery cells 20 are installed in the second mounting cavity 121. The third shell 30 is configured to close the second mounting cavity 121 when the third shell 30 is installed on the shell 10.

[0047] The present application provides an energy storage power supply 100, which cancels the traditional support by setting the second mounting cavity 121 on the shell 10 and fixing the multiple battery cells 20 by using the second mounting cavity 121, thereby reducing the number of parts of the energy storage power supply 100, which is conducive to reducing the volume of the energy storage power supply 100, reducing the cost of the energy storage power supply 100, and further improving the energy density and space utilization of the energy storage power supply 100.

[0048] Specifically, please refer to Figure 1And Figure 2 The energy storage power supply 100 is a device that can store and release electrical energy when needed. Its main function is to provide stable and reliable power supply. When the system needs to store electrical energy, the controller will charge the battery pack, and the battery pack will convert the electrical energy into chemical energy for storage; when the system needs to use electrical energy, the controller first converts the direct current electrical energy stored in the battery pack into alternating current electrical energy, and then outputs it.

[0049] In the embodiments of the present application, the energy storage power supply 100 further includes a mainboard 70, a panel 80 and a battery management system 90, a plurality of battery cells 20 are connected in series or parallel to form a battery pack, the battery pack is electrically connected with the mainboard 70 and the battery management system 90 respectively, the mainboard 70 is electrically connected with the panel 80, the panel 80 controls the energy storage power supply 100 to perform charging and discharging operations and the like through the mainboard 70, and the inverter 60 connects the battery pack through the battery management system 90 to convert the direct current of the battery pack into alternating current.

[0050] The panel 80 includes but is not limited to AC sockets, USB output ports, vehicle charging output ports, display screens, operation buttons, illuminating lamps and the like. The AC sockets are used to output alternating current, the USB output ports and the vehicle charging output ports are used to output direct current, the display screen can display information such as the power, output power and input power of the energy storage power supply 100, the user can input instructions to the energy storage power supply 100 through the operation buttons, and the illuminating lamp can realize illumination.

[0051] The battery management system 90 (BMS, Battery Management System) refers to a collection of hardware, software and algorithms used for monitoring, managing and protecting the energy storage power supply 100. It is a key component in the energy storage power supply 100, responsible for ensuring the safe, efficient and stable operation of the battery pack. The battery management system 90 is usually composed of multiple modules, including a data acquisition module, a central processing unit (MCU), an equalization module, a communication module, a safety protection module and the like. These modules work together to achieve comprehensive monitoring and management of the battery pack.

[0052] In the embodiments of the present application, the bottom surface of the shell 10 is inwardly recessed to form a second mounting cavity 121, and the second mounting cavity 121 and the third shell 30 enclose a mounting area, and the plurality of battery cells 20 are mounted in the mounting area enclosed by the second mounting cavity 121 and the third shell 30.

[0053] Further, in the embodiments of the present application, the third shell 30 is a cover plate arranged on the second mounting cavity 121.

[0054] In the embodiments of the present application, the plurality of battery cells 20 are arranged in an upright array, that is, the length direction of the battery cells 20 is arranged in the vertical direction in the second mounting cavity 121, so as to ensure the minimum space occupation.

[0055] In other embodiments, the plurality of battery cells 20 can also be arranged in other directions according to actual needs.

[0056] Please refer to Figure 2 In some embodiments, the shell 10 comprises a first shell 11 and a second shell 12, the first shell 11 and the second shell 12 are detachably connected, the second mounting cavity 121 is arranged on the second shell 12, the first shell 11 and the second shell 12 form the first mounting cavity 111, and the third shell 30 is installed on the second shell 12.

[0057] In this way, the processing of the second mounting cavity 121 is facilitated, and the electrical connection between the battery cell 20 and the electrical connector 40 is facilitated.

[0058] Specifically, in the embodiments of the present application, the shell 10 comprises a first shell 11 and a second shell 12, wherein the first shell 11 is an upper shell, the second shell 12 is a lower shell, the first shell 11 and the second shell 12 are respectively integrally formed into an integrated structure, and the complete shell 10 is formed by detachable connection through fasteners.

[0059] In the embodiments of the present application, the bottom surface of the second shell 12 is inwardly recessed to form the second mounting cavity 121, and in other embodiments, the top surface of the first shell 11 can also be inwardly recessed to form the second mounting cavity 121.

[0060] In other embodiments, the first shell 11 and the second shell 12 can also be an upper shell and a lower shell or a front shell and a rear shell, respectively, and the specific selection can be made according to actual needs, which will not be described here.

[0061] The first shell 11 is provided with a handle 50, and the handle 50 is used for moving and carrying the energy storage power supply 100.

[0062] Further, the first shell 11 is provided with a avoiding slot, the avoiding slot is arranged on the top of the first shell 11, the handle 50 is rotatably arranged on the first shell 11 and can be rotatably stored in the avoiding slot.

[0063] In some embodiments, the handle 50 is made of metal material, specifically, the handle 50 can be made of aluminum alloy material, and the inside is hollow processed, which is beneficial to the lightweight of the energy storage power supply 100, and the strength and durability of the aluminum alloy handle 50 are relatively high, which is beneficial to increase the reliability of the handle 50 and prolong the service life of the handle 50.

[0064] In other embodiments, the handle 50 can also be made of other materials, and the specific selection can be made according to actual needs, which will not be limited here.

[0065] In other embodiments, the handle 50 can also be provided as a flexible handle 50, which has good adaptability and flexibility, and has better comfort and touch.

[0066] In the embodiments of the present application, the side of the second shell 12 away from the battery module is also provided with a support part, and the support part is also provided with an anti-skid structure. Optionally, the anti-skid structure can be an anti-skid silica gel pad, an anti-skid rubber pad, or an anti-skid pattern provided on the support part.

[0067] In other embodiments, the side of the second shell 12 away from the battery module can also be provided with a fixing groove, and a relatively thick anti-skid pad is arranged in the fixing groove. The material of the anti-skid pad can be selected according to actual needs, which is not limited here.

[0068] In some embodiments, the second shell 12 and the third shell 30 constitute part of the outer surface of the energy storage power supply 100.

[0069] In this way, the battery cell 20 is integrated with the shell 10, and the shell 10 not only protects the internal structure of the energy storage power supply 100, but also plays the role of a traditional support, realizing the one thing with multiple uses of the shell 10.

[0070] Please refer to Figure 3 and Figure 4 In some embodiments, the inner wall of the second mounting cavity 121 is provided with a plurality of first positioning grooves 122, one end of the plurality of battery cells 20 is inserted into the plurality of first positioning grooves 122, and the third shell 30 fixes the one end of the battery cell 20 to the first positioning groove 122.

[0071] In this way, the first positioning groove 122 is used to fix the battery cell 20, preventing displacement of the battery cell 20 when electrically connected with the electrical connecting piece 40.

[0072] Further, the third shell 30 is provided with a plurality of second positioning grooves 31, and the other end of the plurality of battery cells 20 is inserted into the plurality of second positioning grooves 31.

[0073] In this way, the second positioning groove 31 is used to fix the battery cell 20, preventing displacement of the battery cell 20 when electrically connected with the electrical connecting piece 40.

[0074] Specifically, the first positioning groove 122 is arranged on the inner wall of the second mounting cavity 121 of the second shell 12, and the second positioning groove 31 is arranged on the third shell 30.

[0075] Further, the number of the first positioning grooves 122 is a plurality, and the plurality of first positioning grooves 122 are arrayed, the number of the second positioning grooves 31 is a plurality, and the plurality of second positioning grooves 31 are arrayed, and the second positioning groove 31 is arranged in one-to-one correspondence with the first positioning groove 122. In this embodiment, one second positioning groove 31 cooperates with one first positioning groove 122 to fix one battery cell 20.

[0076] Please refer to Figure 2In some embodiments, the energy storage power supply 100 further comprises an electrical connector 40, which is arranged in the first mounting cavity 111 and electrically connected with the plurality of battery cells 20.

[0077] In this way, the electrical connector 40 is arranged in the first mounting cavity 111, which facilitates the connection with the battery cells 20 and improves the space utilization inside the energy storage power supply 100.

[0078] Specifically, the electrical connector 40 is a busbar, which is a device with high electrical conductivity, stability and reliability, used for concentrating or distributing electric current. In the electrical field, the busbar is also called a bus, a busbar, etc., used to connect multiple electrical lines. The busbar is made of high-conductivity material to ensure efficient current transmission. The busbar also has good current carrying and transmission capacity, can quickly respond to power grid changes, and ensure the stable operation of the power grid.

[0079] The electrical connector 40 can be connected with the positive electrode 21 and the negative electrode 22 of at least one battery cell 20 in turn and alternately, so that the positive electrode 21 and the negative electrode 22 connected with the two ends of the electrical connector 40 are respectively a positive connection port and a negative connection port, that is, the electrical connector 40 is connected in series with at least one battery cell 20, so that at least one battery cell 20 forms a large-voltage output power supply, thereby ensuring that the user's power demand is met.

[0080] Specifically, the battery cell 20 is a cylindrical battery cell or a square battery cell.

[0081] In this embodiment, the electrical connector 40 is in the form of a plate, each electrical connector 40 connects two battery cells 20, realizes the series connection between the six battery cells 20, and the electrical connector 40 can be made of copper, aluminum, nickel or alloy material. After the electrical connector 40 is fixed to the correct position by the work jig, the electrical connector 40 and the electrode of the battery cell 20 can be welded together by laser welding. It can be understood that the electrical connection between the electrical connector 40 and the electrode of the battery cell 20 can also be achieved by twisting or pressing.

[0082] Further, in order to cope with the slight deformation of the battery cell 20 that may occur during charging and discharging, a flexible connector can be used to connect the battery cell 20 and the electrical connector 40 to improve the reliability and stability of the connection.

[0083] Please refer to Figure 5 In some embodiments, the inner wall of the first mounting cavity 111 is formed with a plurality of openings 123 communicating with the second mounting cavity 121, and the plurality of battery cells 20 are electrically connected with the electrical connector 40 through the openings 123.

[0084] In this way, the openings 123 are arranged to facilitate the electrical connection between the battery cells 20 and the electrical connector 40.

[0085] Specifically, in the embodiments of the present application, the openings 123 should be evenly distributed on the inner wall of the first mounting cavity 111 to ensure that the battery cells 20 can be evenly electrically connected with the electrical connectors 40. At the same time, the number of openings 123 should be reasonably designed according to the number and layout of the battery cells 20.

[0086] In the embodiments of the present application, by forming openings 123 on the inner wall of the first mounting cavity 111, the battery cells 20 can be more easily electrically connected with the electrical connectors 40 arranged on the surface of the second mounting cavity 121 away from the battery cells 20, without complex wiring or additional connecting structure. At the same time, the openings 123 can serve as heat dissipation channels, helping the heat generated by the battery cells 20 to be better dissipated to the outside of the shell 10, improving the overall heat dissipation performance of the energy storage power supply 100.

[0087] It should be noted that a sealing structure should be provided at the openings 123 to prevent external impurities such as water and dust from entering the inside of the shell 10, affecting the performance and safety of the energy storage power supply 100. When the sealing structure is provided at the openings 123, the reliability and durability of the sealing structure should be ensured.

[0088] In addition, the position, number and shape of the openings 123 and other parameters should be reasonably designed by fully considering the heat dissipation needs of the energy storage power supply 100 to ensure that the energy storage power supply 100 can still operate normally in a high-temperature environment.

[0089] In some embodiments, the electrical connectors 40 can also be injection molded into the shell 10, with both ends of the electrical connectors 40 extending out of the openings 123 for connecting the electrodes of the battery cells 20, and the two ends of the electrical connectors 40 being connected with the electrodes of the battery cells 20 by welding.

[0090] Please refer to Figure 2 and Figure 6 In some embodiments, the battery cells 20 include positive electrodes 21 and negative electrodes 22, the positive electrodes 21 and the negative electrodes 22 are located at the same end of the battery cells 20, the positive electrodes 21 and the negative electrodes 22 are connected with the first mounting cavity 111 through the openings 123, and the electrical connectors 40 connect the positive electrodes 21 of the battery cells 20 and the negative electrodes 22 of adjacent battery cells 20.

[0091] In this way, the openings 123 and the electrical connectors 40 are arranged on the same inner wall of the second mounting cavity 121, simplifying the structure of the energy storage power supply 100, and also facilitating the installation and fixation of the battery cells 20.

[0092] Specifically, in the embodiments of the present application, the positive electrode 21 and the negative electrode 22 of the battery cell 20 are located at the same end and in the opening 123, so that the connection of the battery cell 20 and the electrical connector 40 is more direct and simplified, reducing additional connecting components and steps. Since the positive electrode 21 and the negative electrode 22 are both located in the opening 123, the battery cell 20 can be more easily aligned and connected with the electrical connector 40, improving the connection efficiency and accuracy.

[0093] In some embodiments, the opening 123 includes a first opening 1231 and a second opening 1232, which are respectively arranged corresponding to the positive electrode 21 and the negative electrode 22.

[0094] In this way, the first opening 1231 and the second opening 1232 correspond to the positive electrode 21 and the negative electrode 22 of the battery cell 20 respectively, facilitating the connection and differentiation of the electrical connector 40.

[0095] Specifically, in the embodiments of the present application, the first opening 1231 and the second opening 1232 are respectively arranged corresponding to the positive electrode 21 and the negative electrode 22 of the battery cell 20, which can ensure that the positive electrode 21 and the negative electrode 22 of the battery cell 20 are accurately aligned to the corresponding opening 123 during installation, thereby improving the accuracy and reliability of the connection.

[0096] Further, by separately arranging the openings 123 of the positive electrode 21 and the negative electrode 22, the short circuit problem caused by accidental contact of the positive electrode 21 and the negative electrode 22 during installation or use can be effectively avoided, improving the safety of the energy storage power supply 100.

[0097] In the embodiments of the present application, the first opening 1231 and the second opening 1232 should be reasonably arranged on the inner wall of the second mounting cavity 121, ensuring that the positive electrode 21 and the negative electrode 22 of each battery cell 20 can correspond to the corresponding opening 123. The position, size and shape of the opening 123 should be customized according to the size and shape of the battery cell 20.

[0098] Further, a certain distance should be maintained between the first opening 1231 and the second opening 1232 to prevent accidental contact of the positive electrode 21 and the negative electrode 22 of the battery cell 20 during installation or use. At the same time, the distance between the openings 123 should also consider the thermal expansion and cold contraction effect between the battery cells 20.

[0099] Please refer to Figure 5 In some embodiments, the shell 10 is also provided with a partition plate 124, which is arranged on the surface of the second mounting cavity 121 away from the battery cell 20 and between the first opening 1231 and the second opening 1232.

[0100] In this way, the partition plate 124 forms a barrier between the positive electrode 21 and the negative electrode 22 of the battery cell 20, avoiding the accidental contact of the electrical connector 40 when connecting the battery cell 20, which can cause the battery cell 20 to short circuit.

[0101] Specifically, in the embodiments of the present application, the partition plate 124 is arranged between the first opening 1231 and the second opening 1232, effectively isolating the electrical connection areas of the positive electrode 21 and the negative electrode 22, preventing electrical failure caused by accidental contact or short circuit, and improving the safety performance of the energy storage power supply 100. The partition plate 124 separates the electrical connection areas of the positive electrode 21 and the negative electrode 22, making the wiring between the battery cell 20 and the electrical connector 40 more clear and orderly, reducing the complexity and potential interference of the wiring.

[0102] On the other hand, the partition plate 124 also increases the structural strength of the shell 10, especially on the surface of the second mounting cavity 121 away from the battery cell 20, providing additional support to help resist external impact and vibration, prolonging the service life of the energy storage power supply 100.

[0103] Further, the partition plate 124 should be made of insulating materials such as plastic, ceramic or special insulating composite materials to ensure the effectiveness of electrical isolation. At the same time, the material should have good heat resistance and corrosion resistance. The size of the partition plate 124 should be large enough to separate the area between the two openings 123, while avoiding interference with the connection of the battery cell 20 and the electrical connector 40.

[0104] The partition plate 124 should be firmly installed on the shell 10 by appropriate fixing methods such as screws, buckles or adhesives to prevent movement or falling during use. In the embodiments of the present application, the partition plate 124 and the shell 10 are integrally formed as an integrated structure.

[0105] It should be noted that the partition plate 124 should avoid affecting the thermal management requirements within the energy storage power supply 100, ensuring that the partition plate 124 does not hinder the normal dissipation of heat, and also does not cause local overheating. At the same time, the installation position and size of the partition plate 124 should be strictly controlled to ensure that the partition plate 124 can correctly and effectively play its role.

[0106] Please refer to Figure 3 and Figure 4 In some embodiments, the shell 10 includes a plurality of first connecting columns 125, the first connecting columns 125 are located in the second mounting cavity 121, the third shell 30 includes a plurality of second connecting columns 32, and the first connecting columns 125 and the second connecting columns 32 are connected when the third shell 30 is installed on the shell 10.

[0107] In this way, the first connecting columns 125 and the second connecting columns 32 are used for the connection of the shell 10 and the third shell 30, and the arrangement of the first connecting columns 125 is beneficial to improve the structural strength of the shell 10, and the arrangement of the second connecting columns 32 is beneficial to improve the structural strength of the third shell 30.

[0108] Specifically, in the embodiments of the present application, the first connecting columns 125 are arranged on the shell 10, and the number of the first connecting columns 125 is multiple.

[0109] The second connecting columns 32 are arranged on the third shell 30 corresponding to the positions of the first connecting columns 125, and the number of the second connecting columns 32 is multiple, which is the same as that of the first connecting columns 125, and the second connecting columns 32 are arranged one by one corresponding to the first connecting columns 125.

[0110] In some embodiments, the first connecting columns 125 and the second connecting columns 32 are relatively long, and in order to improve the structural strength, the first connecting columns 125 can be further provided with first reinforcing ribs on the side surfaces, the first reinforcing ribs are triangular or trapezoidal, one end of the first reinforcing rib is connected to the first connecting column 125, and the other end of the first reinforcing rib is connected to the inner wall of the second mounting cavity 121. Similarly, the second connecting column 32 is further provided with a second reinforcing rib, the second reinforcing rib is triangular or trapezoidal, one end of the second reinforcing rib is connected to the second connecting column 32, and the other end of the second reinforcing rib is connected to the third shell 30.

[0111] Further, each first connecting column 125 can be connected with multiple first reinforcing ribs, and similarly, each second connecting column 32 can be connected with multiple second reinforcing ribs. In some embodiments, each first connecting column 125 is connected with at least four first reinforcing ribs, and the four first reinforcing ribs are uniformly arranged on the side wall of the first connecting column 125. Similarly, each second connecting column 32 is connected with at least four second reinforcing ribs, and the four second reinforcing ribs are uniformly arranged on the side wall of the second connecting column 32.

[0112] Further, the first connecting column 125 and the second connecting column 32 can be detachably connected by a fastener to connect the shell 10 and the third shell 30. Among them, the bolt connection is one of the most common ways for the fastening connection of the third shell 30 and the shell 10. The third shell 30 and the shell 10 are tightly connected together through the cooperation of the bolt and the nut. The bolt connection has the advantages of simple structure, convenient disassembly, strong carrying capacity, etc.

[0113] Further, according to the application requirements, different types of bolts can be selected, such as ordinary bolts, high-strength bolts, etc. High-strength bolts have better performance when bearing larger load.

[0114] It should be noted that the fastening torque of the bolt connection is one of the key parameters, which needs to be calculated and set according to the specific materials and structures. The appropriate fastening torque can ensure the stability and safety of the connection.

[0115] In some embodiments, the third shell 30 and the shell 10 can also be connected by other connectors or fasteners. Among them, the connector is a component that connects the third shell 30 and the shell 10 together, such as a bolt, a nut, a washer, etc. The selection and installation of the connector have an important influence on the stability and safety of the connection. The connector material should have good mechanical properties and chemical stability to adapt to different working environments and load requirements. The size of the connector should be calculated and determined according to the size and load requirements of the third shell 30 and the shell 10.

[0116] The fastener is a component used to fix the connector, such as a wrench, a screwdriver, etc. The selection and use of the fastener have an important influence on the fastening degree and stability of the connection. According to the type and size of the connector, select the appropriate fastener. When using the fastener, the size of the fastening force needs to be controlled to ensure the stability and safety of the connection. Excessive fastening force may cause damage or deformation of the connector, and insufficient fastening force may cause the connection to be not firm.

[0117] In some embodiments, the third shell 30 and the shell 10 can also be connected by welding. Welded connection has the advantages of high connection strength and good sealing, but compared with bolt connection, it is more difficult to disassemble and maintain.

[0118] Further, according to the material and application requirements, different welding types can be selected, such as spot welding, seam welding, etc.

[0119] It should be noted that the welding quality directly affects the stability and safety of the connection. Therefore, the welding parameters and quality need to be strictly controlled during the welding process to ensure that the welding quality meets the relevant standards and requirements.

[0120] Further, the first connecting column 125 is an integrated structure integrally processed and formed with the shell 10, and similarly, the second connecting column 32 is an integrated structure integrally processed and formed with the third shell 30.

[0121] Please refer to Figure 2 In some embodiments, the shell 10 is provided with a ventilation hole 131, and the ventilation hole 131 makes the first mounting cavity 111 communicate with the outside.

[0122] In this way, the ventilation hole 131 can be used to dissipate heat for the energy storage power supply 100, so as to avoid thermal runaway of the battery cell 20 of the energy storage power supply 100 due to excessive internal temperature of the energy storage 100 power supply.

[0123] Specifically, in the embodiment of the present application, the energy storage power supply 100 generates a large amount of heat during operation, especially the battery cell 20, the heat generated by the battery cell 20 is transmitted to the first mounting cavity 111 through the shell 10, so that the temperature in the first mounting cavity 111 gradually rises, affecting the normal use of the energy storage power supply 100, the ventilation hole 131 makes the first mounting cavity 111 communicate with the outside, so that the heat generated inside can be dissipated to the environment in time, avoiding the accumulation of a large amount of heat inside the energy storage power supply 100, affecting the working state of the energy storage power supply 100.

[0124] In the embodiment of the present application, the shell 10 further comprises a decorative plate 13, and the ventilation hole 131 is formed in the decorative plate 13.

[0125] In the description of the present application, the description of the terms "some embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0126] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, unless otherwise specifically limited.

[0127] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An energy storage power source, characterized in that, include: A housing, wherein a first mounting cavity is formed inside the housing and a second mounting cavity is formed outside the housing; Multiple battery cells are installed within the second mounting cavity; A third housing, configured to close the second mounting cavity when the third housing is mounted on the housing; An inverter, which is installed in the first mounting cavity and electrically connected to the plurality of battery cells.

2. The energy storage power supply according to claim 1, characterized in that, The housing includes a first housing and a second housing, which are detachably connected. A second mounting cavity is disposed on the second housing, and the first housing and the second housing enclose a first mounting cavity. The third housing is mounted on the second housing.

3. The energy storage power supply according to claim 2, characterized in that, The second housing and the third housing constitute part of the outer surface of the energy storage power source.

4. The energy storage power supply according to claim 1, characterized in that, The inner wall of the second mounting cavity is provided with a plurality of first positioning grooves. One end of the battery cell is inserted into the first positioning groove, and the third housing fixes one end of the battery cell to the first positioning groove.

5. The energy storage power supply according to claim 4, characterized in that, The third housing is provided with a plurality of second positioning slots, and the other end of the battery cell is inserted into the second positioning slot.

6. The energy storage power supply according to claim 1, characterized in that, The energy storage power supply also includes an electrical connector, which is disposed in the first mounting cavity, and the plurality of battery cells are electrically connected to the electrical connector.

7. The energy storage power supply according to claim 6, characterized in that, The inner wall of the first mounting cavity has a plurality of openings communicating with the second mounting cavity, and the plurality of battery cells are electrically connected to the electrical connector through the openings.

8. The energy storage power supply according to claim 7, characterized in that, The battery cell includes a positive electrode and a negative electrode, which are located at the same end of the battery cell. The positive electrode and the negative electrode are connected to the first mounting cavity through the opening. The electrical connector connects the positive electrode of the battery cell and the negative electrode of the adjacent battery cell.

9. The energy storage power supply according to claim 8, characterized in that, The opening includes a first opening and a second opening, which are respectively provided for the positive electrode and the negative electrode.

10. The energy storage power supply according to claim 9, characterized in that, The housing is also provided with a partition, which is disposed on the surface of the second mounting cavity away from the battery cell and located between the first opening and the second opening.

11. The energy storage power supply according to claim 1, characterized in that, The housing includes multiple first connecting posts, which are located within the second mounting cavity. The third housing includes multiple second connecting posts, and when the third housing is mounted on the housing, the first connecting posts are connected to the second connecting posts.

12. The energy storage power supply according to claim 1, characterized in that, The housing is provided with ventilation holes, which allow the first mounting cavity to communicate with the outside.

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