Energy storage power supply

Abstract

The invention relates to the technical field of energy storage, and solves or relieves the problems that an energy storage power supply is large in size and weight and high in cost. The energy storage power supply comprises a shell, a plurality of battery cells and an inverter, the shell comprises a first shell, a second shell and a third shell, and the first shell, the second shell and the third shell jointly define a containing cavity; a plurality of first containing grooves are formed in the surface, facing the containing cavity, of the first shell, a plurality of second containing grooves are formed in the surface, facing the containing cavity, of the second shell, one end of each battery cell is inserted into one first containing groove, the other end of each battery cell is inserted into the corresponding second containing groove, the battery cells are fixed in the containing cavity, and an opening is formed after the first shell and the second shell are fixed. The third shell is fixed at the opening position to seal the opening so as to form a closed accommodating cavity; and the inverter is fixed in the accommodating cavity and is electrically connected with the battery cell.

Description

Technical Field

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

[0002] In the related art, an energy storage power supply is a power supply device that outputs AC and DC power, and stores electrical energy. The energy storage power supply includes a housing, a battery module, an inverter and other components. The battery module is generally assembled into a module by two battery holders to assemble multiple battery cells into a module and then fixed into the energy storage power supply housing, or the battery cells are directly fixed to the housing through the battery holders. Therefore, the existing energy storage power supply inevitably requires the use of battery holders. However, the use of battery holders will increase the volume and weight of the energy storage power supply, and the increase in product parts will increase the assembly steps and costs. The inventors realized that eliminating the battery holders can further reduce the volume and weight of the energy storage power supply, while reducing the cost of the energy storage power supply. Summary of the Invention

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

[0004] An energy storage power supply provided by the present invention includes: a housing, a plurality of battery cells and an inverter, wherein the housing includes a first housing, a second housing and a third housing, wherein the first housing, the second housing and the third housing together form a receiving cavity, and the battery cells and the inverter are both arranged in the receiving cavity; A plurality of first receiving grooves are provided on a surface of the first shell facing the receiving cavity, and a plurality of second receiving grooves are provided on a surface of the second shell facing the receiving cavity. One end of the battery cell is inserted into one of the first receiving grooves, and the other end is inserted into the second receiving groove, so that when the first shell and the second shell are fixedly connected, the battery cell is fixed in the receiving cavity. After the first shell and the second shell are fixed, an opening is formed. The third shell is fixed at the opening position to close the opening to form a closed receiving cavity. The inverter is fixed in the accommodating cavity and electrically connected to the battery core.

[0005] In the above-mentioned energy storage power supply, one end of the battery cell is inserted into a first receiving groove on the inner wall of a first shell, and the other end is inserted into a second receiving groove on the inner wall of a second shell. The battery cell can be fixed in the receiving cavity, thereby eliminating the battery cell bracket, further reducing the volume and weight of the energy storage power supply, and at the same time reducing the cost of the energy storage power supply.

[0006] In certain embodiments, the battery cell includes a main body, a first electrode, and a second electrode, wherein the first electrode and the second electrode have opposite polarities, and the first electrode and the second electrode are disposed on the same side of the main body.

[0007] In some embodiments, a first through hole and a second through hole are provided at the bottom of the first receiving groove of the first shell, the first electrode is connected to the outside through the first through hole, and the second electrode is connected to the outside through the second through hole. The energy storage power supply includes an electrical connecting piece, and the electrical connecting piece connects the first electrode and the second electrode of adjacent battery cells through the first through hole and the second through hole.

[0008] In some embodiments, the energy storage power supply includes a first cover plate, a first receiving groove is provided on the outer wall of the first shell corresponding to the first receiving groove, the first through hole and the second through hole pass through the bottom wall of the first receiving groove, the electrical connecting plate is located in the first receiving groove, and the first cover plate is arranged on the outer wall of the first shell and covers the first receiving groove.

[0009] In some embodiments, a first notch is provided on the outer side wall of the first shell corresponding to the first accommodating groove, the first through hole and the second through hole pass through the bottom wall of the first notch, the electrical connection plate is located in the first notch, and the third shell includes a first covering portion, which is connected to the outer side wall of the first shell and covers the first notch.

[0010] In some embodiments, the battery cell includes a main body, a first electrode and a second electrode, the first electrode and the second electrode have opposite polarities, and the first electrode and the second electrode are respectively arranged on two opposite sides of the main body.

[0011] In some embodiments, a third through hole is provided at the bottom of the first accommodating groove, a fourth through hole is provided at the bottom of the second accommodating groove, the first electrode is connected to the outside through the third through hole, the second electrode is connected to the outside through the fourth through hole, the energy storage power supply includes a first electrical connecting plate and a second electrical connecting plate, the first electrical connecting plate is connected to the first electrode of the adjacent battery cell through the third through hole, and the second electrical connecting plate is connected to the second electrode of the adjacent battery cell through the fourth through hole.

[0012] In some embodiments, the energy storage power supply includes a second cover plate and a third cover plate, a second receiving groove is provided on the outer wall of the first housing corresponding to the first receiving groove, the third through hole passes through the bottom wall of the second receiving groove, the first electrical connection plate is located in the second receiving groove, and the second cover plate is provided on the outer wall of the first housing and covers the second receiving groove; A third receiving groove is provided on the outer wall of the second shell corresponding to the second receiving groove, the fourth through hole passes through the bottom wall of the third receiving groove, the second electrical connection plate is located in the third receiving groove, and the third cover plate is arranged on the outer wall of the second shell and covers the third receiving groove.

[0013] In some embodiments, a second notch is provided on the outer wall of the first housing corresponding to the first receiving groove, the third through hole penetrates the bottom wall of the second notch, the first electrical connection plate is located in the second notch, and the third housing includes a second covering portion connected to the outer wall of the first housing and covering the second notch; A third notch is provided on the outer side wall of the second shell corresponding to the second accommodating groove, the fourth through hole passes through the bottom wall of the third notch, the second electrical connection plate is located in the third notch, and the third shell includes a third covering portion, which is connected to the outer side wall of the second shell and covers the third notch.

[0014] In some embodiments, the shell is further provided with ventilation holes, which connect the accommodating cavity with the outside for heat dissipation.

[0015] In some embodiments, the ventilation hole is provided in at least one of the first shell, the second shell and the third shell, or the energy storage power supply includes a ventilation plate, the ventilation plate is provided with the ventilation hole, and the ventilation plate is connected to the first shell, the second shell and the third shell to jointly enclose the accommodating cavity.

[0016] In some embodiments, the housing includes a panel, and the third housing is provided with at least one of a power outlet, a light, a screen, and a button.

[0017] In certain embodiments, the inverter includes a circuit board, and a plane of the circuit board is parallel to an extension direction of the battery cells.

[0018] In some embodiments, the inverter is fixed on the third housing or on a housing assembly formed by combining the first housing and the second housing.

[0019] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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: Figure 1 is a schematic cross-sectional view of an energy storage power supply according to an embodiment of the present invention; Figure 2 Schematic diagram of the structure of the energy storage power supply according to the embodiment of the present invention; Figure 3 Schematic diagram of the structure of the energy storage power supply according to the embodiment of the present invention; Figure 4Schematic diagram of the structure of a battery cell according to an embodiment of the present invention; Figure 5 is a schematic cross-sectional view of an energy storage power supply according to an embodiment of the present invention; Figure 6 is a schematic cross-sectional view of an energy storage power supply according to an embodiment of the present invention; Figure 7 is a schematic cross-sectional view of an energy storage power supply according to an embodiment of the present invention; Figure 8 is a schematic cross-sectional view of an energy storage power supply according to an embodiment of the present invention; Figure 9 is a schematic cross-sectional view of an energy storage power supply according to an embodiment of the present invention; Figure 10 It is a cross-sectional schematic diagram of an energy storage power supply according to an embodiment of the present invention.

[0021] Description of main component reference numerals: Energy storage power supply 1000, housing 100, battery cell 200, inverter 300, first cover 400, second cover 500, third cover 600, handle 700, electrical connection piece 800, first housing 101, second housing 102, third housing 103, ventilation hole 104, ventilation piece 105, panel 106, accommodating cavity 150, main body 201, first electrode 202, second electrode 203, circuit board 301, First receiving groove 1011, first receiving groove 1012, first notch 1013, second receiving groove 1014, second notch 1015, second receiving groove 1021, third receiving groove 1022, third notch 1023, first covering portion 1031, second covering portion 1032, third covering portion 1033, first through hole 1011a, second through hole 1011b, third through hole 1011c, fourth through hole 1021a. DETAILED DESCRIPTION

[0022] 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.

[0023] The disclosure below 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 below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. 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 skilled in the art will recognize the application of other processes and / or the use of other materials.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0025] 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 to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] 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.

[0027] 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.

[0028] See also Figures 1 to 5 An energy storage power supply 1000 according to an embodiment of the present invention includes a housing 100, a plurality of battery cells 200, and an inverter 300. The housing 100 includes a first housing 101, a second housing 102, and a third housing 103. The first housing 101, the second housing 102, and the third housing 103 collectively define a receiving cavity 150. The battery cells 200 and the inverter 300 are both disposed in the receiving cavity 150.

[0029] The surface of the first housing 101 facing the accommodating cavity 150 is provided with a plurality of first accommodating grooves 1011, and the surface of the second housing 102 facing the accommodating cavity 150 is provided with a plurality of second accommodating grooves 1021. One end of the battery cell 200 is inserted into a first accommodating groove 1011, and the other end is inserted into a second accommodating groove 1021. When the first housing 101 and the second housing 102 are fixedly connected, the battery cell 200 is secured within the accommodating cavity 150. After the first and second housings 101 and 102 are fixed, an opening is formed. The third housing 103 is fixed to the opening to close the opening, forming a closed accommodating cavity 150. The inverter 300 is secured within the accommodating cavity 150 and electrically connected to the battery cell 200.

[0030] In the above-mentioned energy storage power supply 1000, one end of the battery cell 200 is inserted into a first receiving groove 1011 on the inner wall of the first shell 101, and the other end is inserted into a second receiving groove 1021 on the inner wall of the second shell 102. The battery cell 200 can be fixed in the receiving cavity 150, thereby eliminating the battery cell 200 bracket, further reducing the volume and weight of the energy storage power supply 1000, and at the same time reducing the cost of the energy storage power supply 1000.

[0031] Specifically, the energy storage power supply 1000 is a device for storing electrical energy and releasing it on demand. The energy storage power supply 1000 may include a housing 100, multiple battery cells 200, and an inverter 300, with the multiple battery cells 200 electrically connected to the inverter 300. The housing 100 may be used to encapsulate and protect the components located therein, including but not limited to the battery cells 200 and the inverter 300. The battery cells 200 are the primary components of the energy storage power supply 1000 for storing electrical energy. The inverter 300 is a component that converts the direct current (DC) output from the battery cells 200 into alternating current (AC) for use by external electrical devices.

[0032] The housing 100 may include a first housing 101, a second housing 102, and a third housing 103. The first housing 101, the second housing 102, and the third housing 103 may be fixedly connected by screws, snaps, welding, gluing, or the like, thereby forming a receiving cavity 150. The battery cell 200 and the inverter 300 are both disposed within the receiving cavity 150.

[0033] The surface of the first housing 101 facing the accommodating cavity 150 is provided with a plurality of first accommodating grooves 1011, and the surface of the second housing 102 facing the accommodating cavity 150 is provided with a plurality of second accommodating grooves 1021. The first accommodating grooves 1011 and the second accommodating grooves 1021 correspond to each other. One end of a battery cell 200 can be inserted into a first accommodating groove 1011, and the other end can be inserted into a corresponding second accommodating groove 1021, thereby securing the battery cell 200 within the accommodating cavity 150 and improving its structural stability.

[0034] Optionally, the inverter 300 may be fixed in the accommodating cavity 150 by screw fixation, bracket installation, snap fit, or guide rail sliding, thereby improving the structural stability of the inverter 300 .

[0035] Optionally, the housing 100 surrounding the inverter 300 may be provided with ventilation holes 104 , which can dissipate the heat generated in the accommodating cavity 150 due to the operation of the inverter 300 to the outside of the energy storage power supply 1000 in a timely manner.

[0036] Optionally, the shapes of the first receiving groove 1011 and the second receiving groove 1021 are adapted to the battery cell 200 , so that the battery cell 200 can be firmly fixed in the receiving cavity 150 .

[0037] Optionally, the number of the first accommodating grooves 1011 and the second accommodating grooves 1021 is equal to the number of the battery cells 200. On the one hand, it can avoid wasting the space of the accommodating cavity 150 to a certain extent. On the other hand, it can ensure that all the battery cells 200 are fixed in the accommodating cavity 150 to a certain extent, thereby improving the structural stability of the energy storage power supply 1000.

[0038] Optionally, the energy storage power supply 1000 may include a handle 700 to facilitate the user to carry or move the energy storage power supply 1000.

[0039] In some embodiments, please combine Figure 4 The battery cell 200 includes a main body 201, a first electrode 202, and a second electrode 203. The first electrode 202 and the second electrode 203 have opposite polarities and are disposed on the same side of the main body 201.

[0040] In the above embodiment, the first electrode 202 and the second electrode 203 are disposed on the same side of the main body 201 , which can improve manufacturing efficiency, thermal management effect, and operational stability of the energy storage power supply 1000 .

[0041] Specifically, the main body 201 is the main part of the battery cell 200, which may include but is not limited to components such as a positive electrode sheet, a negative electrode sheet, an electrolyte, and a separator, and is used to achieve storage and release of electrical energy.

[0042] The first electrode 202 and the second electrode 203 are lead-out terminals of the battery cell 200, used to electrically connect the battery cell 200 to other battery cells 200, the inverter 300, or other circuits. The first electrode 202 and the second electrode 203 have opposite polarities; one of the first electrode 202 and the second electrode 203 is the positive electrode of the battery cell 200, and the other is the negative electrode.

[0043] In an embodiment of the present invention, the first electrode 202 and the second electrode 203 are arranged on the same side of the main body 201, so as to facilitate welding or electrical connection on an automated assembly line, which helps to improve manufacturing efficiency and also facilitates the unified arrangement of heat dissipation structures (such as heat sinks, thermal pads, etc.), thereby improving the thermal management effect and the stability of the operation of the energy storage power supply 1000.

[0044] In some embodiments, please combine Figures 5 to 8 A first through hole 1011a and a second through hole 1011b are formed at the bottom of the first receiving groove 1011 of the first shell 101. The first electrode 202 is connected to the outside through the first through hole 1011a, and the second electrode 203 is connected to the outside through the second through hole 1011b. The energy storage power supply 1000 includes an electrical connecting piece 800, which connects the first electrode 202 and the second electrode 203 of adjacent battery cells 200 through the first through hole 1011a and the second through hole 1011b.

[0045] In the above embodiment, the plurality of battery cells 200 can be electrically connected through the first through hole 1011a and the second through hole 1011b, thereby being connected in series, in parallel or in hybrid to meet the output voltage and capacity requirements of the energy storage power supply 1000.

[0046] Specifically, one battery cell 200 may include a first electrode 202 and a second electrode 203. One battery cell 200 is inserted into one first receiving groove 1011 and one second receiving groove 1021. A first through hole 1011a and a second through hole 1011b are provided at the bottom of one first receiving groove 1011.

[0047] In one embodiment, please combine Figure 5The projections of the first through hole 1011a and the second through hole 1011b in the first direction overlap. The first electrode 202 disposed on the same side of the battery cell 200 passes through the first through hole 1011a, and the second electrode 203 passes through the second through hole 1011b.

[0048] In one embodiment, please combine Figure 6 The projections of the first through hole 1011a and the second through hole 1011b in the first direction do not overlap. The first electrode 202 disposed on the same side of the battery cell 200 passes through the first through hole 1011a, and the second electrode 203 passes through the second through hole 1011b.

[0049] The first electrode 202 passes through the first shell 101 through the first through hole 1011a, and the second electrode 203 passes through the first shell 101 through the second through hole 1011b. The electrical connecting piece 800 can be located on the side of the first shell 101 away from the first receiving groove 1011, and connects the first electrode 202 and the second electrode 203 of adjacent battery cells 200, so that adjacent battery cells 200 can be connected in series, in parallel, or in mixed connection, where mixed connection means both series and parallel connection.

[0050] Optionally, the electrical connection sheet 800 may be a metal conductive sheet whose shape and size match the first through hole 1011a and the second through hole 1011b to facilitate plugging or welding fixation, thereby ensuring the reliability of the electrical connection to a certain extent.

[0051] Optionally, to improve safety and sealing, a sealing ring or a sealing layer may be provided on the edges of the first through hole 1011a and the second through hole 1011b to prevent dust, water vapor or other impurities from entering the interior of the shell 100 to a certain extent, thereby improving the operating safety of the battery cell 200.

[0052] In some embodiments, please combine Figure 5 The energy storage power supply 1000 includes a first cover plate 400, a first receiving groove 1012 is provided on the outer wall of the first shell 101 corresponding to the first receiving groove 1011, a first through hole 1011a and a second through hole 1011b pass through the bottom wall of the first receiving groove 1012, the electrical connection piece 800 is located in the first receiving groove 1012, and the first cover plate 400 is arranged on the outer wall of the first shell 101 and covers the first receiving groove 1012.

[0053] In the above embodiment, it is possible to prevent external foreign matter from entering to a certain extent and improve the overall protection level of the energy storage power supply 1000.

[0054] Specifically, a first receiving groove 1012 is provided on the sidewall of the first housing 101 facing away from the first receiving groove 1011. Optionally, at least one first receiving groove 1011 corresponds to one first receiving groove 1012, and the first receiving groove 1011 and the first receiving groove 1012 can be connected via a first through-hole 1011a and a second through-hole 1011b. The first electrode 202 and the second electrode 203 of the battery cell 200 can respectively pass through the first through-hole 1011a and the second through-hole 1011b and extend into the first receiving groove 1012. The electrical connection piece 800 can be located in the first receiving groove 1012 to connect the first electrode 202 and the second electrode 203 of adjacent battery cells 200.

[0055] The energy storage power supply 1000 includes a first cover plate 400. The number of first cover plates 400 is equal to the number of first receiving slots 1012. The size and shape of the first cover plates 400 are adapted to the first receiving slots 1012, so that the first cover plates 400 are disposed on the outer wall of the first housing 101 and cover the first receiving slots 1012. The first cover plates 400 can be mounted on the first housing 101 by screw fastening, snap-fit connection, or adhesive bonding, thereby enclosing the first receiving slots 1012, the protective electrical connection plate 800, the first electrode 202, and the second electrode 203, thereby preventing the ingress of foreign matter to a certain extent and improving the overall protection level of the energy storage power supply 1000.

[0056] Optionally, an elastic gasket or an insulating layer may be provided on the inner surface of the first cover plate 400 to compress the electrical connection piece 800 during installation and provide additional fixing force and insulation protection thereto.

[0057] In some embodiments, please combine Figure 7 and Figure 8 A first notch 1013 is provided on the outer wall of the first shell 101 corresponding to the first accommodating groove 1011, a first through hole 1011a and a second through hole 1011b pass through the bottom wall of the first notch 1013, the electrical connecting piece 800 is located in the first notch 1013, and the third shell 103 includes a first covering portion 1031, which is connected to the outer wall of the first shell 101 and covers the first notch 1013.

[0058] In the above embodiment, the number of components of the energy storage power supply 1000 can be reduced, thereby reducing production costs.

[0059] Specifically, a first notch 1013 is provided on the sidewall of the first housing 101 facing away from the first receiving groove 1011. Optionally, at least one first receiving groove 1011 corresponds to one first notch 1013, and the first receiving groove 1011 and the first notch 1013 can be connected via a first through-hole 1011a and a second through-hole 1011b. The first electrode 202 and the second electrode 203 of the battery cell 200 can respectively pass through the first through-hole 1011a and the second through-hole 1011b and extend into the first notch 1013. The electrical connection sheet 800 can be located in the first notch 1013 to connect the first electrode 202 and the second electrode 203 of adjacent battery cells 200.

[0060] The third housing 103 includes a first covering portion 1031, which is connected to the outer wall of the first housing 101 and covers the first notch 1013. The first covering portion 1031 can be integrally formed with the third housing 103 or separately assembled, and can be fixed to the outer wall of the first housing 101 via screws, snaps, adhesive, or ultrasonic welding, thereby sealing the first notch 1013 and improving the protection of the electrical connection piece 800, the first electrode 202, and the second electrode 203.

[0061] Optionally, an elastic gasket or an insulating layer may be provided on the inner surface of the first covering portion 1031 to compress the electrical connection piece 800 during installation and provide additional fixing force and insulation protection thereto.

[0062] In some embodiments, please combine Figure 9 and Figure 10 The battery cell 200 includes a main body 201, a first electrode 202 and a second electrode 203. The polarities of the first electrode 202 and the second electrode 203 are opposite. The first electrode 202 and the second electrode 203 are respectively arranged on two opposite sides of the main body 201.

[0063] In the above embodiment, the first electrode 202 and the second electrode 203 are respectively disposed on two opposite sides of the main body 201 , which can improve the discharge rate performance and energy efficiency and reduce the manufacturing complexity.

[0064] Specifically, the battery cell 200 may be a square battery cell 200 or a cylindrical battery cell 200. The body 201 is the main part of the battery cell 200 and may include but is not limited to components such as a positive electrode sheet, a negative electrode sheet, an electrolyte, and a separator, and is used to store and release electrical energy.

[0065] The first electrode 202 and the second electrode 203 are lead-out terminals of the battery cell 200, used to electrically connect the battery cell 200 to other battery cells 200, the inverter 300, or other circuits. The first electrode 202 and the second electrode 203 have opposite polarities; one of the first electrode 202 and the second electrode 203 is the positive electrode of the battery cell 200, and the other is the negative electrode.

[0066] In an embodiment of the present invention, the first electrode 202 and the second electrode 203 are arranged on two opposite sides, so as to shorten the current path, reduce the internal resistance, improve the discharge rate performance and energy efficiency, and to a certain extent reduce the situation of the pole ears crossing, thereby reducing the manufacturing complexity.

[0067] In some embodiments, please combine Figure 9 and Figure 10 A third through hole 1011c is provided at the bottom of the first accommodating groove 1011, and a fourth through hole 1021a is provided at the bottom of the second accommodating groove 1021. The first electrode 202 is connected to the outside through the third through hole 1011c, and the second electrode 203 is connected to the outside through the fourth through hole 1021a. The energy storage power supply 1000 includes a first electrical connecting plate and a second electrical connecting plate. The first electrical connecting plate is connected to the first electrode 202 of the adjacent battery cell 200 through the third through hole 1011c, and the second electrical connecting plate is connected to the second electrode 203 of the adjacent battery cell 200 through the fourth through hole 1021a.

[0068] In the above embodiment, the plurality of battery cells 200 can be electrically connected through the third through hole 1011c and the fourth through hole 1021a, thereby being connected in series, in parallel or in hybrid to meet the output voltage and capacity requirements of the energy storage power supply 1000.

[0069] Specifically, a battery cell 200 may include a first electrode 202 and a second electrode 203. A battery cell 200 is inserted into a first receiving groove 1011 and a second receiving groove 1021. A third through hole 1011c is provided at the bottom of each first receiving groove 1011, and a fourth through hole 1021a is provided at the bottom of each second receiving groove 1021.

[0070] In one embodiment, the projections of the third through hole 1011c and the fourth through hole 1021a in the first direction overlap. The first electrodes 202 disposed on opposite sides of the battery cell 200 pass through the third through hole 1011c, and the second electrodes 203 pass through the fourth through hole 1021a.

[0071] In one embodiment, the projections of the third through hole 1011c and the fourth through hole 1021a in the first direction do not overlap. The first electrode 202 disposed on opposite sides of the battery cell 200 passes through the third through hole 1011c, and the second electrode 203 passes through the fourth through hole 1021a.

[0072] The first electrode 202 passes through the first shell 101 through the third through hole 1011c, and the second electrode 203 passes through the second shell 102 through the fourth through hole 1021a. The first electrical connecting piece can be located on the side of the first shell 101 away from the first receiving groove 1011, and connects the first electrodes 202 of adjacent battery cells 200. The second electrical connecting piece can be located on the side of the second shell 102 away from the second receiving groove 1021, and connects the second electrodes 203 of adjacent battery cells 200, so that adjacent battery cells 200 can be connected in series, in parallel, or in mixed connection, where mixed connection means both series and parallel connection.

[0073] Optionally, the first electrical connection plate and the second electrical connection plate may be metal conductive plates, and the shape and size of the first electrical connection plate match the third through hole 1011c, and the shape and size of the second electrical connection plate match the fourth through hole 1021a, so as to facilitate plugging or welding fixation, thereby ensuring the reliability of the electrical connection to a certain extent.

[0074] Optionally, to improve safety and sealing, a sealing ring or a sealing glue layer may be provided on the edges of the third through hole 1011c and the fourth through hole 1021a to prevent dust, water vapor or other impurities from entering the interior of the shell 100 to a certain extent, thereby improving the operating safety of the battery cell 200.

[0075] In some embodiments, please combine Figure 9 The energy storage power supply 1000 includes a second cover plate 500 and a third cover plate 600. A second receiving groove 1014 is provided on the outer wall of the first housing 101 corresponding to the first receiving groove 1011. A third through hole 1011c penetrates the bottom wall of the second receiving groove 1014. The first electrical connection plate is located in the second receiving groove 1014. The second cover plate 500 is provided on the outer wall of the first housing 101 and covers the second receiving groove 1014. A third receiving groove 1022 is provided on the outer wall of the second shell 102 corresponding to the second receiving groove 1021, the fourth through hole 1021a passes through the bottom wall of the third receiving groove 1022, the second electrical connection plate is located in the third receiving groove 1022, and the third cover plate 600 is arranged on the outer wall of the second shell 102 and covers the third receiving groove 1022.

[0076] In the above embodiment, it is possible to prevent external foreign matter from entering to a certain extent and improve the overall protection level of the energy storage power supply 1000.

[0077] Specifically, a second receiving groove 1014 is provided on the sidewall of the first housing 101 facing away from the first receiving groove 1011, and a third receiving groove 1022 is provided on the sidewall of the second housing 102 facing away from the second receiving groove 1021. Optionally, at least one first receiving groove 1011 corresponds to one second receiving groove 1014, and at least one second receiving groove 1021 corresponds to one third receiving groove 1022. The first receiving groove 1011 and the second receiving groove 1014 can be connected via a third through hole 1011c, and the second receiving groove 1021 and the third receiving groove 1022 can be connected via a fourth through hole 1021a. The first electrode 202 and the second electrode 203 of the battery cell 200 can pass through the third through hole 1011c and the fourth through hole 1021a, respectively, and extend into the second receiving groove 1014 and the third receiving groove 1022. The first electrical connection piece may be located in the second receiving groove 1014 to connect the first electrodes 202 of adjacent battery cells 200 , and the second electrical connection piece may be located in the third receiving groove 1022 to connect the second electrodes 203 of adjacent battery cells 200 .

[0078] The energy storage power supply 1000 includes a second cover plate 500 and a third cover plate 600. The number of the second cover plates 500 is equal to the number of the second receiving grooves 1014, and the number of the third cover plates 600 is equal to the number of the third receiving grooves 1022. The size and shape of the second cover plate 500 are adapted to the second receiving grooves 1014, and the size and shape of the third cover plate 600 are adapted to the third receiving grooves 1022. The second cover plate 500 is arranged on the outer wall of the first shell 101 and covers the second receiving grooves 1014, and the third cover plate 600 is arranged on the outer wall of the second shell 102 and covers the third receiving grooves 1022. The second cover plate 500 and the third cover plate 600 can be respectively installed on the first shell 101 and the second shell 102 by screw fixing, snap connection or bonding, thereby closing the second receiving groove 1014 and the third receiving groove 1022, protecting the first electrical connection plate, the second electrical connection plate, the first electrode 202 and the second electrode 203, preventing external foreign matter from entering to a certain extent and improving the overall protection level of the energy storage power supply 1000.

[0079] Optionally, the inner surfaces of the second cover plate 500 and the third cover plate 600 may be provided with elastic gaskets or insulating layers for pressing the first electrical connection piece and the second electrical connection piece during installation and providing them with additional fixing force and insulation protection.

[0080] In some embodiments, please combine Figure 10A second notch 1015 is defined on the outer wall of the first housing 101 corresponding to the first receiving groove 1011. A third through hole 1011c extends through the bottom wall of the second notch 1015. The first electrical connection piece is located in the second notch 1015. The third housing 103 includes a second covering portion 1032 connected to the outer wall of the first housing 101 and covering the second notch 1015. A third notch 1023 is provided on the outer wall of the second shell 102 corresponding to the second accommodating groove 1021, the fourth through hole 1021a passes through the bottom wall of the third notch 1023, the second electrical connection plate is located in the third notch 1023, and the third shell 103 includes a third covering portion 1033, which is connected to the outer wall of the second shell 102 and covers the third notch 1023.

[0081] In the above embodiment, the number of components of the energy storage power supply 1000 can be reduced, thereby reducing production costs.

[0082] Specifically, a second notch 1015 is provided on the sidewall of the first housing 101 facing away from the first receiving groove 1011, and a third notch 1023 is provided on the sidewall of the second housing 102 facing away from the second receiving groove 1021. Optionally, at least one first receiving groove 1011 corresponds to one second notch 1015, and at least one second receiving groove 1021 corresponds to one third notch 1023. The first receiving groove 1011 and the second notch 1015 can be connected via a third through-hole 1011c, and the second receiving groove 1021 and the third notch 1023 can be connected via a fourth through-hole 1021a. The first electrode 202 and the second electrode 203 of the battery cell 200 can pass through the third through hole 1011c and the fourth through hole 1021a respectively and extend into the second notch 1015 and the third notch 1023. The first electrical connecting plate can be located in the second notch 1015 to connect the first electrodes 202 of adjacent battery cells 200. The second electrical connecting plate can be located in the third notch 1023 to connect the second electrodes 203 of adjacent battery cells 200.

[0083] The third housing 103 includes a second covering portion 1032 and a third covering portion 1033. The second covering portion 1032 is connected to the outer wall of the first housing 101 and covers the second notch 1015. The third covering portion 1033 is connected to the outer wall of the second housing 102 and covers the third notch 1023. The second covering portion 1032 and the third covering portion 1033 can be integrally formed with the third housing 103 or assembled separately. They can be fixed to the outer walls of the first and second housings 101, 102, respectively, by screws, snaps, adhesive bonding, or ultrasonic welding, thereby sealing the second and third notches 1015, 1023 and improving the protective performance of the first and second electrical connection plates, the first and second electrodes 202, 203.

[0084] Optionally, the inner surfaces of the second covering portion 1032 and the third covering portion 1033 may be provided with elastic gaskets or insulating layers for pressing the first electrical connection piece and the second electrical connection piece during installation and providing additional fixing force and insulation protection thereto.

[0085] In some embodiments, please combine Figure 2 and Figure 3 The housing 100 is further provided with ventilation holes 104 , which connect the accommodating cavity 150 with the outside for heat dissipation.

[0086] In the above embodiment, the temperature of the accommodating cavity 150 can be effectively reduced, and the heat dissipation performance and working stability of the energy storage power supply 1000 can be improved.

[0087] Specifically, the ventilation hole 104 can connect the accommodating cavity 150 and the outside of the energy storage power supply 1000, so that the heat generated in the accommodating cavity 150 due to the operation of the battery cell 200 and the inverter 300 can be dissipated to the outside of the energy storage power supply 1000 in a timely manner, thereby effectively reducing the temperature of the accommodating cavity 150 and improving the heat dissipation performance and working stability of the energy storage power supply 1000.

[0088] Optionally, there may be multiple ventilation holes 104. The opening size, shape, and density of ventilation holes 104 may be determined based on the heat generation and ventilation requirements of energy storage power supply 1000. For example, ventilation holes 104 may be circular holes, elongated holes, or grid-like openings to enhance the ventilation efficiency of housing 100.

[0089] Optionally, a dustproof net, filter or waterproof film may be provided at the ventilation hole 104, so as to prevent dust, water vapor and other impurities from entering the accommodating cavity 150 to a certain extent, thereby improving the service life and environmental adaptability of the energy storage power supply 1000.

[0090] In some embodiments, please combine Figure 2 and Figure 3 The ventilation hole 104 is provided in at least one of the first shell 101, the second shell 102 and the third shell 103, or the energy storage power supply 1000 includes a ventilation plate 105, the ventilation plate 105 is provided with ventilation holes 104, and the ventilation plate 105 is connected to the first shell 101, the second shell 102 and the third shell 103 to jointly form an accommodating cavity 150.

[0091] In the above embodiment, the ventilation holes 104 can be flexibly provided in various parts of the housing 100 , thereby improving the versatility and system heat dissipation efficiency of the energy storage power supply 1000 in different installation environments, and enhancing the reliability and safety of the energy storage system.

[0092] Specifically, in one embodiment, the ventilation holes 104 are provided on any one of the first housing 101, the second housing 102, and the third housing 103. In one embodiment, the ventilation holes 104 are provided on any two of the first housing 101, the second housing 102, and the third housing 103. In one embodiment, the ventilation holes 104 are provided on the first housing 101, the second housing 102, and the third housing 103.

[0093] In one embodiment, the energy storage power supply 1000 includes a ventilation plate 105, which is provided with ventilation holes 104. The ventilation plate 105 can be connected to the first shell 101, the second shell 102 and the third shell 103 by screws, snaps, welding, etc., and together form an accommodating cavity 150.

[0094] In some embodiments, please combine Figure 2 The third shell 103 is provided with at least one of a power output port, a light, a screen and a button.

[0095] In the above embodiment, the ease of use of the energy storage power supply 1000 can be improved.

[0096] Specifically, The power output port can be used to output the AC power converted by the inverter 300 for connection to external power-consuming devices.

[0097] The light can be an indicator light, used to indicate the working status of the energy storage power supply 1000, such as operating status, fault status, charging and discharging status, etc.

[0098] The screen can be a liquid crystal display (LCD), a light emitting diode display (LED), an electronic ink screen (EPD), a digital tube, etc., which is used to display the operating parameters of the energy storage power supply 1000, such as voltage, current, power, temperature, fault information, etc., so that the user can understand the operating status of the energy storage power supply 1000 in real time.

[0099] The buttons can be used to perform functions such as power on and off, mode switching, and parameter setting. The number and functions of the buttons can be configured according to the functional complexity of the energy storage power supply 1000.

[0100] Optionally, the housing 100 includes a panel 106, on which at least one of a power outlet, a light, a screen, and a button is provided. The panel 106 can be an independent module connected to the housing 100 by screws, snaps, etc., for easy maintenance and replacement.

[0101] In some embodiments, please combine Figure 2 The panel 106 and the third shell 103 are an integrally formed structure.

[0102] In the above embodiment, the appearance integrity and mechanical strength of the energy storage power supply 1000 can be improved.

[0103] Specifically, the panel 106 and the third housing 103 can be formed into an integral structure through injection molding, die-casting, or other integrated manufacturing processes, thereby avoiding assembly gaps caused by assembly to a certain extent and improving the sealing and strength of the housing 100. At the same time, the integrated molding structure can simplify the production process, reduce the number of parts, and reduce manufacturing costs.

[0104] It is understandable that during the molding process, the panel 106 may reserve installation positions for power outlets, lights, screens, and buttons for subsequent insertion or fixation.

[0105] In some embodiments, please combine Figure 1 The inverter 300 includes a circuit board 301 , and the plane of the circuit board 301 is parallel to the extension direction of the battery cell 200 .

[0106] In the above embodiment, the space utilization rate inside the energy storage power supply 1000 can be improved.

[0107] Specifically, the extension direction of the battery cell 200 can be the direction of its long axis, that is, the first direction. The plane of the circuit board 301 is parallel to the extension direction of the battery cell 200, that is, the plane of the circuit board 301 is parallel to the first direction, thereby helping to improve the space utilization inside the energy storage power supply 1000 while facilitating the electrical connection between the battery cell 200 and the inverter 300, to a certain extent reducing the situation of wire crossing and entanglement, and improving the reliability of the electrical connection and electromagnetic compatibility performance.

[0108] Optionally, the circuit board 301 may be fixed on the inner surface of the housing 100 facing the accommodating cavity 150 by means of a bracket, a slot, a screw, or the like.

[0109] In some embodiments, please combine Figure 1 and Figure 7 The inverter 300 is fixed on the third housing 103 or on a housing assembly formed by combining the first housing 101 and the second housing 102 .

[0110] In the above embodiment, the overall structural stability of the energy storage power supply 1000 can be improved.

[0111] Specifically, the inverter 300 can be installed on the inner surface of the third shell 103, or on the inner surface of the shell group structure formed by the first shell 101 and the second shell 102 by screw fixing, snap fitting, guide rail sliding installation or bracket connection.

[0112] Optionally, the housing 100 surrounding the inverter 300 may be provided with ventilation holes 104 , which can dissipate the heat generated in the accommodating cavity 150 due to the operation of the inverter 300 to the outside of the energy storage power supply 1000 in a timely manner.

[0113] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative descriptions 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.

[0114] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, combinations, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An energy storage power supply, characterized in that: include: A housing, a plurality of battery cells and an inverter, wherein the housing includes a first housing, a second housing and a third housing, wherein the first housing, the second housing and the third housing together form a receiving cavity, and the battery cells and the inverter are both arranged in the receiving cavity; A plurality of first receiving grooves are provided on a surface of the first shell facing the receiving cavity, and a plurality of second receiving grooves are provided on a surface of the second shell facing the receiving cavity. One end of the battery cell is inserted into the first receiving groove, and the other end is inserted into the second receiving groove, so that when the first shell and the second shell are fixedly connected, the battery cell is fixed in the receiving cavity. After the first shell and the second shell are fixed, an opening is formed. The third shell is fixed at the opening position to close the opening to form a closed receiving cavity. The inverter is fixed in the accommodating cavity and electrically connected to the battery core.

2. The energy storage power supply according to claim 1, characterized in that: The battery cell includes a main body, a first electrode, and a second electrode. The first electrode and the second electrode have opposite polarities, and the first electrode and the second electrode are arranged on the same side of the main body.

3. The energy storage power supply according to claim 2, characterized in that: A first through hole and a second through hole are provided at the bottom of the first receiving groove, the first electrode is connected to the outside through the first through hole, and the second electrode is connected to the outside through the second through hole. The energy storage power supply includes an electrical connecting piece, and the electrical connecting piece connects the first electrode and the second electrode of adjacent battery cells through the first through hole and the second through hole.

4. The energy storage power supply according to claim 3, characterized in that: The energy storage power supply includes a first cover plate, a first receiving groove is provided on the outer wall of the first shell corresponding to the first receiving groove, the first through hole and the second through hole pass through the bottom wall of the first receiving groove, the electrical connecting plate is located in the first receiving groove, and the first cover plate is arranged on the outer wall of the first shell and covers the first receiving groove.

5. The energy storage power supply according to claim 3, characterized in that: A first notch is provided on the outer side wall of the first shell corresponding to the first accommodating groove, the first through hole and the second through hole pass through the bottom wall of the first notch, the electrical connecting piece is located in the first notch, and the third shell includes a first covering portion, which is connected to the outer side wall of the first shell and covers the first notch.

6. The energy storage power supply according to claim 1, characterized in that: The battery cell includes a main body, a first electrode and a second electrode. The polarities of the first electrode and the second electrode are opposite to each other. The first electrode and the second electrode are respectively arranged on two opposite sides of the main body.

7. The energy storage power supply according to claim 6, characterized in that: A third through hole is provided at the bottom of the first accommodating groove, and a fourth through hole is provided at the bottom of the second accommodating groove. The first electrode is connected to the outside through the third through hole, and the second electrode is connected to the outside through the fourth through hole. The energy storage power supply includes a first electrical connecting plate and a second electrical connecting plate. The first electrical connecting plate is connected to the first electrode of the adjacent battery cell through the third through hole, and the second electrical connecting plate is connected to the second electrode of the adjacent battery cell through the fourth through hole.

8. The energy storage power supply according to claim 7, characterized in that: The energy storage power supply includes a second cover plate and a third cover plate. The outer wall of the first shell is provided with a second receiving groove corresponding to the first receiving groove. The third through hole passes through the bottom wall of the second receiving groove. The first electrical connection plate is located in the second receiving groove. The second cover plate is provided on the outer wall of the first shell and covers the second receiving groove. A third receiving groove is provided on the outer wall of the second shell corresponding to the second receiving groove, the fourth through hole passes through the bottom wall of the third receiving groove, the second electrical connection plate is located in the third receiving groove, and the third cover plate is arranged on the outer wall of the second shell and covers the third receiving groove.

9. The energy storage power supply according to claim 7, characterized in that: A second notch is provided on the outer wall of the first housing corresponding to the first receiving groove, the third through hole penetrates the bottom wall of the second notch, the first electrical connection piece is located in the second notch, and the third housing includes a second covering portion connected to the outer wall of the first housing and covering the second notch; A third notch is provided on the outer side wall of the second shell corresponding to the second accommodating groove, the fourth through hole passes through the bottom wall of the third notch, the second electrical connection plate is located in the third notch, and the third shell includes a third covering portion, which is connected to the outer side wall of the second shell and covers the third notch.

10. The energy storage power supply according to claim 1, characterized in that: The shell is further provided with ventilation holes, which connect the accommodating cavity with the outside to dissipate heat.

11. The energy storage power supply according to claim 10, characterized in that: The ventilation hole is provided in at least one of the first shell, the second shell and the third shell, or the energy storage power supply includes a ventilation plate, the ventilation plate is provided with the ventilation hole, and the ventilation plate is connected to the first shell, the second shell and the third shell to jointly enclose the accommodating cavity.

12. The energy storage power supply according to claim 1, characterized in that: The third shell is provided with at least one of a power output port, a light, a screen and a button.

13. The energy storage power supply according to claim 1, characterized in that: The inverter includes a circuit board, and a plane of the circuit board is parallel to an extension direction of the battery core.

14. The energy storage power supply according to claim 1, characterized in that: The inverter is fixed on the third housing or on a housing assembly formed by combining the first housing and the second housing.

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