energy storage device

Abstract

The utility model relates to the technical field of energy storage, disclose a kind of energy storage equipment, it includes shell, electric core component and connecting component, the shell is equipped with recess and the accommodating cavity for accommodating the electric core component, the recess is formed from the surface of the shell recess to the direction of the accommodating cavity to preset depth;The recess is equipped with the accommodating hole being communicated with the accommodating cavity, the connecting component is worn in the accommodating hole, one end of the connecting component extends to the accommodating cavity, and is electrically connected with the electric core component, the other end of the connecting component extends to the accommodating hole outside, and when being electrically connected in the recess with electric equipment, so that the electric core component supplies power to the electric equipment by the connecting component.The utility model aims at solving the technical problem that the pole terminal is assembled on the shell of energy storage equipment, causes the shortage of assembly space, causes the interference of pole terminal and external equipment.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, and in particular to an energy storage device. Background Technology

[0002] An energy storage device is a device that stores electrical energy and releases it when needed, supplying power to electrical equipment to ensure its normal operation. Energy storage devices are formed by encapsulating battery cell components in a casing, which protects the battery cell components from damage caused by the external environment, such as impact, compression, and moisture.

[0003] In related technologies, positive and negative terminals are typically installed on the casing of energy storage devices to establish an electrical connection between the battery cell assembly and external devices. However, because the terminals occupy space on the casing surface, insufficient assembly space can lead to interference between the terminals and external devices, hindering the connection between them. Utility Model Content

[0004] The purpose of this utility model is to provide an energy storage device to solve the technical problem that insufficient assembly space is caused by mounting terminal blocks on the outer shell of the energy storage device, resulting in interference between the terminal blocks and external devices.

[0005] To achieve the above objectives, this utility model provides an energy storage device, which includes a housing, a battery cell assembly, and a connection assembly. The housing is provided with a groove and a receiving cavity for accommodating the battery cell assembly. The groove is formed by recessing from the surface of the housing toward the receiving cavity to a predetermined depth. The groove has a receiving hole communicating with the receiving cavity. The connecting component passes through the receiving hole. One end of the connecting component extends into the receiving cavity and is electrically connected to the battery cell assembly. The other end of the connecting component extends outward from the receiving hole. When electrically connected to the electrical device in the groove, the battery cell assembly supplies power to the electrical device through the connecting component.

[0006] In the energy storage device of this application, the outer shell includes a first shell and a second shell, the groove is disposed in the first shell, and the receiving cavity is disposed in the second shell; The first housing includes a top plate and several side plates connected to the top plate. The side plates are connected to form an enclosing frame for covering the receiving cavity.

[0007] In the energy storage device of this application, the connecting component extends in a direction perpendicular to the groove, and the extension length of the connecting component within the groove is not greater than the height of the top plate.

[0008] In the energy storage device of this application, the groove extends at least partially to at least one of the side plates, thereby forming the groove through the top plate and at least one of the side plates.

[0009] In the energy storage device of this application, the groove extends at least partially to the two adjacent side plates.

[0010] In the energy storage device of this application, the shape of the groove is adapted to the external connecting cable so that when the connecting cable is electrically connected to the connecting component, the connecting cable is not higher than the height of the top plate within the groove.

[0011] In the energy storage device of this application, the outer casing is provided with a groove, and the groove is provided with two receiving holes; The energy storage device includes two of the aforementioned connecting components, each of which is correspondingly inserted through one of the aforementioned receiving holes.

[0012] In the energy storage device of this application, the outer shell is provided with two grooves, and each groove is provided with a receiving hole; The energy storage device includes two of the aforementioned connecting components, each of which is correspondingly inserted through one of the aforementioned receiving holes.

[0013] In the energy storage device of this application, the connection component includes pole terminals; The electrode terminal is assembled in the receiving hole, one end of the electrode terminal extends into the receiving cavity and is connected to the cell assembly, and the other end of the electrode terminal extends out of the receiving hole and is connected to the electrical device in the groove.

[0014] In the energy storage device of this application, the energy storage device includes a vehicle connector; The pole terminal is connected to the vehicle connector within the groove, and the vehicle connector is used to connect the electrical equipment.

[0015] In the energy storage device of this application, the energy storage device includes at least one rechargeable battery or supercapacitor, and the rechargeable battery includes at least one of sodium battery, lithium battery and lead-acid battery.

[0016] In the energy storage device of this application, the energy storage device is a start-stop power supply.

[0017] This utility model provides an energy storage device, the advantages of which are: The energy storage device of this invention includes a shell, a battery cell assembly, and a connecting assembly. A groove is formed by recessing the surface of the shell inward to a predetermined depth. A receiving hole communicating with a receiving cavity is opened within the groove. The connecting assembly passes through the receiving hole. One end of the connecting assembly is electrically connected to the battery cell assembly within the receiving cavity, and the other end of the connecting assembly is electrically connected to the electrical device through the groove, thereby enabling the battery cell assembly to supply power to the electrical device. By providing a groove on the surface of the shell, assembly space is provided for the connecting assembly. The connecting assembly is partially or completely housed within the groove, reducing the volume occupied by the connecting assembly on the surface of the shell and preventing interference between the connecting assembly and other components on the surface of the shell. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of the energy storage device provided in the embodiment of this utility model; Figure 2 An exploded view of the energy storage device provided in this embodiment of the utility model; Figure 3 Another exploded view of the energy storage device provided in this embodiment of the utility model; Figure 4 A schematic diagram of the structure of the first housing provided in an embodiment of this utility model; Figure 5 Another structural schematic diagram of the first housing provided in an embodiment of this utility model; Figure 6 Another structural schematic diagram of the first housing provided in an embodiment of this utility model; Figure 7 A front view of the energy storage device provided in an embodiment of this utility model; Figure 8 for Figure 7 A magnified view of a section at point A in the middle; Figure 9 Another front view of the energy storage device provided in an embodiment of this utility model.

[0020] The markings in the image are as follows: 10. Housing; 11. Groove; 12. Receiving cavity; 13. Receiving hole; 14. First housing; 141. Top plate; 142. Side plate; 15. Second housing; 20. Connecting assembly; 21. Terminal post; 30. Vehicle connector. Detailed Implementation

[0021] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0022] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer" and other terms used in this utility model to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device and components referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0024] like Figures 1 to 3 As shown, this utility model embodiment provides an energy storage device, which includes a housing 10, a battery cell assembly, and a connecting assembly 20. The housing 10 is provided with a groove 11 and a receiving cavity 12 for accommodating the battery cell assembly. The groove 11 is recessed from the surface of the housing 10 toward the receiving cavity 12 to a predetermined depth. The groove 11 is provided with a receiving hole 13 communicating with the receiving cavity 12. The connecting assembly 20 passes through the receiving hole 13. One end of the connecting assembly 20 extends toward the receiving cavity 12 and is electrically connected to the battery cell assembly. The other end of the connecting assembly 20 extends outward of the receiving hole 13. When it is electrically connected to the electrical device in the groove 11, the battery cell assembly supplies power to the electrical device through the connecting assembly 20.

[0025] In this embodiment, the battery cell assembly is housed within the receiving cavity 12 of the housing 10, and the housing 10 encapsulates the battery cell assembly to form an energy storage device. The energy storage device connects to an external electrical device via the connection assembly 20, thereby providing power to the electrical device. The electrical device can be a common household appliance, lighting equipment, power tool, etc., and no specific limitations are imposed here.

[0026] To address the aforementioned technical issues, a groove 11 is formed by recessing the surface of the outer casing 10 inward to a predetermined depth. A receiving hole 13, communicating with the receiving cavity 12, is opened within the groove 11. The connecting component 20 passes through the receiving hole 13. One end of the connecting component 20 is electrically connected to the battery cell assembly within the receiving cavity 12, and the other end of the connecting component 20 is electrically connected to the electrical device within the groove 11, thereby enabling the battery cell assembly to supply power to the electrical device. In this embodiment, by providing a groove 11 on the surface of the outer casing 10, assembly space is provided for the connecting component 20. The connecting component 20 is partially or entirely housed within the groove 11, reducing the volume occupied by the connecting component 20 on the surface of the outer casing 10 and preventing interference between the connecting component 20 and other components on the surface of the outer casing 10.

[0027] In this embodiment, the shape and structure of the outer shell 10 are not specifically limited. The outer shell 10 can be a square shell or a cylindrical shell. The shape and position of the groove 11 are also specifically limited. The groove 11 can be a circular groove, a square groove, or a groove of other shapes. The groove 11 can be provided on the top or side of the outer shell 10, or it can be provided in the center or at the edge of the shell.

[0028] In some embodiments, such as Figure 3 and Figure 4 As shown, the outer shell 10 includes a first shell 14 and a second shell 15. A groove 11 is provided in the first shell 14, and a receiving cavity 12 is provided in the second shell 15. The first shell 14 includes a top plate 141 and a plurality of side plates 142 connected to the top plate 141. The plurality of side plates 142 are connected to form an enclosing frame for covering the receiving cavity 12.

[0029] Specifically, the first housing 14 and the second housing 15 can be assembled into the outer shell 10 by means of screw connection, snap connection, magnetic connection, etc., and this embodiment does not impose specific limitations. Several side plates 142 are connected sequentially, and the top plate 141 is connected to the several side plates 142 to form an enclosing frame, thereby covering the receiving cavity 12 of the second housing 15. The groove 11 is provided on the first housing 14, and can be provided on the top plate 141, the side plates 142, or both; this embodiment does not impose specific limitations.

[0030] For example, the first housing 14 is the upper cover and the second housing 15 is the lower housing; or the second housing 15 is the upper cover and the first housing 14 is the lower housing.

[0031] In some embodiments, the top plate 141 and several side plates 142 are integrally formed, and the first housing 14 can be integrally formed by injection molding.

[0032] In some embodiments, the connecting component 20 extends in a direction perpendicular to the groove 11, and the extension length of the connecting component 20 within the groove 11 is not greater than the height of the top plate 141.

[0033] Specifically, such as Figure 7 As shown, the energy storage device is placed horizontally, with its height aligned vertically. Figure 8 As shown, the extension length of the connecting component 20 in the groove 11 is L1, and the height of the top plate 141 is L2, wherein L1 is not greater than L2, so that the connecting component 20 is completely accommodated in the groove 11, avoiding the connecting component 20 from protruding from the surface of the top plate 141, and reducing the volume occupied by the connecting component 20 on the surface of the outer shell 10.

[0034] In some embodiments, such as Figure 4 As shown, the groove 11 extends at least partially to at least one side plate 142, thereby forming the groove 11 through the top plate 141 and at least one side plate 142.

[0035] Specifically, the groove 11 is provided at the edge of the first housing 14. The groove 11 is recessed from the top plate 141 toward the receiving cavity 12, and the groove 11 extends to the side plate 142, that is, an opening structure is formed at the side plate 142 to facilitate the installation or removal of the vehicle connector 30 from the edge of the first housing 14.

[0036] In some embodiments, such as Figure 5 As shown, the groove 11 extends at least partially to a side plate 142, which can be a side plate 142 in the length direction of the first housing 14 or a side plate 142 in the width direction of the first housing 14, without any specific limitation here.

[0037] In some embodiments, such as Figure 4 As shown, the groove 11 extends at least partially into the two adjacent side plates 142.

[0038] Specifically, the groove 11 is located at the corner of the first housing 14, a part of the groove 11 extends to one of the side plates 142, and another part of the groove 11 extends to the other side plate 142, that is, an opening structure is formed at the position of the two adjacent side plates 142 so as to install or remove the vehicle connector 30 from the position of the two side plates 142.

[0039] For example, such as Figure 4 As shown, the energy storage device is placed horizontally. The horizontal cross-section of the first housing 14 is a square structure. The first housing 14 has a length direction and a width direction. A part of the groove 11 extends to the side plate 142 in the length direction, and another part of the groove 11 extends to the side plate 142 in the width direction.

[0040] In some embodiments, the shape of the groove 11 is adapted to the external connecting cable (not shown in the figures) so that when the connecting cable is electrically connected to the connecting assembly 20, the connecting cable is not higher than the height of the top plate 141 within the groove 11.

[0041] Specifically, to ensure that the connecting cable does not exceed the height of the top plate 141 within the groove 11, the external dimensions of the groove 11 are adapted to the external dimensions of the connecting cable. This ensures the connecting cable does not exceed the height of the top plate 141, making the surface of the housing 10 flat. This allows the combined form of the energy storage device, connecting cable, and energy storage device to reduce the overall space occupied and optimize the device layout.

[0042] In some embodiments, such as Figure 6 As shown, the outer casing 10 has a groove 11, and the groove 11 has two receiving holes 13; the energy storage device includes two connecting components 20, and each connecting component 20 is correspondingly inserted into each receiving hole 13.

[0043] For example, a groove 11 is provided at the edge of the first housing 14, and two receiving holes 13 are provided at intervals in the groove 11. The two connecting components 20 are positive and negative connecting components 20, respectively. The positive and negative connecting components 20 are respectively provided through the receiving holes 13 for connecting the positive and negative terminals of the electrical device and the positive and negative terminals of the battery cell assembly, thereby realizing the transmission of electrical energy between the energy storage device and the electrical device.

[0044] In some embodiments, such as Figure 2 and Figure 3 As shown, the outer casing 10 has two grooves 11, and each groove 11 has a receiving hole 13; the energy storage device includes two connecting components 20, and each connecting component 20 is correspondingly inserted into each receiving hole 13.

[0045] For example, a groove 11 is provided at each of the two corners of the first housing 14, and each groove 11 is provided with a receiving hole 13. The two connecting components 20 are positive and negative connecting components 20 respectively. The positive and negative connecting components 20 pass through the receiving holes 13 respectively and are used to connect the positive and negative terminals of the electrical equipment and the positive and negative terminals of the battery cell assembly.

[0046] In some embodiments, such as Figure 3 As shown, the connection assembly 20 includes a pole terminal 21; the pole terminal 21 is assembled in the receiving hole 13, one end of the pole terminal 21 extends into the receiving cavity 12 and is connected to the cell assembly, and the other end of the pole terminal 21 extends outward from the receiving hole 13 and is connected to the electrical device in the groove 11.

[0047] Specifically, the connection component 20 includes positive and negative terminals 21. The positive terminal 21 passes through one of the receiving holes 13 and is connected to the positive terminal of the electrical device and the battery cell assembly, respectively. The negative terminal 21 passes through the other receiving hole 13 and is connected to the negative terminal of the electrical device and the battery cell assembly, respectively.

[0048] In some embodiments, the energy storage device includes fasteners that secure the terminal 21 to the housing 10 by fixing the terminal 21 in the receiving hole 13.

[0049] In some embodiments, such as Figure 9 As shown, the energy storage device includes a vehicle connector 30; a pole terminal 21 (or connection assembly 20) is connected to the vehicle connector 30 in a groove 11, and the vehicle connector 30 is used to connect electrical equipment.

[0050] Specifically, the vehicle connector 30 is an electrical device used to achieve stable transmission of electrical energy, signals, and data between the energy storage device and the vehicle, and can carry a large current. The vehicle connector 30 is electrically connected to the terminal block 21, and the positive and negative electrodes of the vehicle equipment are connected through the vehicle connector 30, thereby realizing the transmission of electrical energy between the energy storage device and the vehicle equipment. The energy storage device provides electrical energy to the vehicle equipment, such as powering the vehicle's air conditioning, audio system, and lights; the energy storage device can also provide starting power for vehicle startup.

[0051] In this embodiment, the vehicle connector 30 is installed in the groove 11 to avoid the vehicle connector 30 occupying the surface space of the housing 10 and to avoid the vehicle connector 30 interfering with other components.

[0052] In some embodiments, the energy storage device includes at least one of a rechargeable battery or a supercapacitor. The rechargeable battery has a high energy density, is capable of storing large amounts of electricity, and can withstand hundreds to thousands of charge-discharge cycles. The supercapacitor features high power density, rapid charge-discharge capability, and long cycle life.

[0053] In some embodiments, the rechargeable battery includes at least one of sodium batteries, lithium batteries, and lead-acid batteries. The rechargeable battery is suitable for application scenarios that require long-term power supply and can provide power to the vehicle for a long time.

[0054] In some embodiments, the energy storage device is a start-stop power supply.

[0055] Specifically, a start-stop power supply is a power supply device with automatic start and stop functions. It can automatically cut off the power supply to save energy when the electrical equipment is not working, and can quickly restore the power supply to the electrical equipment.

[0056] For example, the electrical device is a vehicle, and the energy storage device is a start-stop power supply. The vehicle's start-stop power supply is a battery specifically designed for vehicles equipped with automatic start-stop functionality. It automatically shuts off the engine when the vehicle is temporarily stopped, reducing fuel consumption and exhaust emissions during idling. When it is time to continue driving, the start-stop power supply quickly restarts the engine, ensuring a smooth driving experience. The start-stop power supply has a large battery capacity, fast charging and discharging speed, and long cycle life, which can meet the needs of frequent starts of the automatic start-stop system and provide stable power support for the vehicle.

[0057] It should be understood that the term "and / or" as used in this specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations. It should be noted that, herein, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0058] The sequence numbers of the above-described embodiments of this utility model are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above descriptions are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An energy storage device, characterized in that, The device includes a housing, a battery cell assembly, and a connecting assembly. The housing has a groove and a receiving cavity for accommodating the battery cell assembly. The groove is formed by recessing from the surface of the housing toward the receiving cavity to a predetermined depth. The groove has a receiving hole communicating with the receiving cavity. The connecting component passes through the receiving hole. One end of the connecting component extends into the receiving cavity and is electrically connected to the battery cell assembly. The other end of the connecting component extends outward from the receiving hole. When electrically connected to the electrical device in the groove, the battery cell assembly supplies power to the electrical device through the connecting component.

2. The energy storage device according to claim 1, characterized in that, The outer casing includes a first casing and a second casing, the groove is disposed in the first casing, and the receiving cavity is disposed in the second casing; The first housing includes a top plate and several side plates connected to the top plate. The side plates are connected to form an enclosing frame for covering the receiving cavity.

3. The energy storage device according to claim 2, characterized in that, The connecting component extends in a direction perpendicular to the groove, and the extension length of the connecting component within the groove is not greater than the height of the top plate.

4. The energy storage device according to claim 2, characterized in that, The groove extends at least partially to at least one of the side plates, thereby forming the groove through the top plate and at least one of the side plates.

5. The energy storage device according to claim 4, characterized in that, The groove extends at least partially into the two adjacent side plates.

6. The energy storage device according to claim 2, characterized in that, The shape of the groove is adapted to the external connecting cable so that when the connecting cable is electrically connected to the connecting assembly, the connecting cable is not higher than the height of the top plate within the groove.

7. The energy storage device according to claim 1, characterized in that, The outer casing is provided with a groove, and the groove is provided with two receiving holes; The energy storage device includes two of the aforementioned connecting components, each of which is correspondingly inserted through one of the aforementioned receiving holes.

8. The energy storage device according to claim 1, characterized in that, The outer casing is provided with two grooves, and each groove is provided with a receiving hole; The energy storage device includes two of the aforementioned connecting components, each of which is correspondingly inserted through one of the aforementioned receiving holes.

9. The energy storage device according to claim 1, characterized in that, The connection component includes pole terminals; The electrode terminal is assembled in the receiving hole, one end of the electrode terminal extends into the receiving cavity and is connected to the cell assembly, and the other end of the electrode terminal extends out of the receiving hole and is connected to the electrical device in the groove.

10. The energy storage device according to claim 9, characterized in that, The energy storage device includes a vehicle connector; The pole terminal is connected to the vehicle connector within the groove, and the vehicle connector is used to connect the electrical equipment.

11. The energy storage device according to claim 1, characterized in that, The energy storage device includes at least one rechargeable battery or supercapacitor, wherein the rechargeable battery includes at least one of sodium battery, lithium battery, and lead-acid battery.

12. The energy storage device according to any one of claims 1 to 11, characterized in that, The energy storage device is a start-stop power supply.

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