Battery device, high-voltage box, electric equipment and energy storage equipment

Abstract

The utility model relates to a battery device, a high-voltage box, electric equipment and energy storage equipment, the battery device comprises a box body, a battery monomer and the high-voltage box, and the battery monomer and the high-voltage box are both arranged in the box body; the high-voltage box comprises a box body, a high-voltage assembly and a low-voltage assembly, the box body is constructed to form at least two containing spaces which are sequentially arranged in the vertical direction, and the high-voltage assembly and the low-voltage assembly are arranged in the at least two containing spaces respectively and used for being electrically connected with an external structure. The box body is enclosed to form the at least two accommodating spaces which are sequentially arranged along the vertical direction, and the high-voltage assembly and the low-voltage assembly are respectively arranged in the at least two accommodating spaces, so that on one hand, the space in the vertical direction can be fully utilized, and on the other hand, the space in the vertical direction can be fully utilized; the high-voltage assembly and the low-voltage assembly are separately arranged in the vertical space and the horizontal space, so that the high-voltage assembly and the low-voltage assembly do not influence each other, and the use performance of the high-voltage box is improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery device, a high-voltage box, an electrical device, and an energy storage device. Background Art

[0002] The high-voltage box is an important component of the battery energy storage system. It not only controls the charging and discharging of the battery system and provides overvoltage and overcurrent protection, thereby ensuring the power transmission of the energy storage system, but also can detect insulation faults, circuit faults, grounding faults and high-voltage faults in the entire high-voltage system at any time.

[0003] At present, the internal space of most high-voltage boxes is limited, and the internal components are compactly arranged, which not only leads to low utilization of the internal space of the high-voltage box, but also easily causes interference between high and low voltages, affecting the performance of the high-voltage box. Utility Model Content

[0004] Based on this, it is necessary to provide a battery device, a high-voltage box, an electrical device and an energy storage device to address the problems that the internal space of the current high-voltage box is limited and the internal components are compactly arranged, which not only leads to low utilization of the internal space of the high-voltage box, but also easily interferes with each other between high and low voltages, affecting the performance of the high-voltage box.

[0005] In the first aspect, the present application provides a battery device comprising a box body, a battery cell and a high-voltage box, wherein the battery cell is arranged inside the box body, and the high-voltage box is arranged inside the box body and electrically connected to the battery cell; the high-voltage box comprises a box body, a high-voltage component and a low-voltage component, and the box body structure forms at least two accommodating spaces arranged in sequence along the vertical direction, and the high-voltage component and the low-voltage component are respectively arranged in the at least two accommodating spaces, and the high-voltage component and the low-voltage component are respectively used to be electrically connected to the external structure.

[0006] Through the above structure, on the one hand, the space in the vertical direction can be more fully utilized, and on the other hand, the high-voltage components and the low-voltage components can be arranged separately in the vertical and horizontal spaces, so that the high-voltage components and the low-voltage components do not affect each other, thereby improving the performance of the high-voltage box.

[0007] In some embodiments, the box body includes a first plate body extending in the horizontal direction, and the first plate body is formed into a first subspace and a second subspace on opposite sides in the vertical direction, respectively. One of the first subspace and the second subspace is used to set the high-voltage component, and the other is used to set the low-voltage component.

[0008] In this way, the first plate separates the first and second open subspaces, and the high-voltage and low-voltage components are placed in the first and second subspaces, respectively. This not only makes fuller use of the vertical space but also frees up horizontal space for structures such as the energy storage compartment, further increasing the battery capacity. Furthermore, the high-voltage and low-voltage components are located in separate spaces, isolating them from each other and reducing the likelihood of interference between them, thus ensuring more stable operation.

[0009] In some embodiments, the box includes a first plate, a second plate, and a third plate. The first plate extends horizontally, and the second and third plates are vertically connected to opposite ends of the first plate and extend toward the same side. The interiors and exteriors of the first, second, and third plates are respectively configured to form a first subspace and a second subspace. One of the first subspace and the second subspace is used to accommodate high-voltage components, and the other is used to accommodate low-voltage components.

[0010] In this way, the first, second, and third plates enclose a semi-enclosed first subspace and an open second subspace, with the high-voltage and low-voltage components positioned within the first and second subspaces, respectively. This not only allows for more efficient use of vertical space but also frees up horizontal space for structures like the energy storage compartment, further increasing the battery capacity. Furthermore, the high-voltage and low-voltage components, each housed in a separate space, provide isolation from the other, reducing the likelihood of interference between them and ensuring more stable operation.

[0011] In some embodiments, the box body includes an outer frame and a first plate body. The first plate body is arranged inside the outer frame in the horizontal direction, and divides the interior of the outer frame into a first subspace and a second subspace arranged in sequence along the vertical direction. One of the first subspace and the second subspace is used to set high-voltage components, and the other is used to set low-voltage components.

[0012] In this way, a closed storage space is formed within the outer frame, and the first plate separates the storage space, allowing the high-voltage components and low-voltage components to be placed in the first and second subspaces, respectively. This not only makes better use of the vertical space but also frees up horizontal space for structures such as the energy storage compartment, further increasing the battery capacity. Furthermore, the high-voltage and low-voltage components are located in separate spaces, isolating them from each other and reducing the likelihood of interference between them, making the operation more stable.

[0013] In some embodiments, the first subspace is located above the second subspace in the vertical direction, the high-voltage component is disposed in the first subspace, and the low-voltage component is disposed in the second subspace.

[0014] With the above structure, when the high-voltage box is applied to a battery device, the high-voltage components can be better protected and the risk of short circuit of the high-voltage components can be reduced.

[0015] In some embodiments, the low-voltage assembly includes a low-voltage connection harness, and the low-voltage connection harness is routed in a vertical direction toward a side away from the first subspace.

[0016] Through the above structure, the low-voltage component is arranged in the second subspace located in the lower layer, and the low-voltage connecting harness is led out from the bottom, which can further save the installation space between the high-voltage box and the battery device and improve space utilization.

[0017] In some embodiments, the high-voltage component includes a lead-out terminal, which is vertically arranged on a side of the first subspace facing away from the second subspace.

[0018] Through the above structure, the lead-out end of the high-voltage component can be further separated from the low-voltage component, thereby improving the stability of the high-voltage component.

[0019] In some embodiments, the high-voltage component includes multiple sub-components, the low-voltage component includes multiple sub-plug-ins, each accommodating space includes multiple sub-cavities, and each sub-component and each sub-plug-in is respectively arranged in a corresponding sub-cavity.

[0020] In this way, each sub-component in the high-voltage component is separately arranged in a different sub-cavity, and each sub-plug-in in the low-voltage component is separately arranged in a different sub-cavity, which can further reduce the probability of mutual interference and mutual influence between each sub-component or each sub-plug-in, and further improve the working stability of the high-voltage box.

[0021] In some embodiments, the high voltage assembly includes a main positive relay, a main negative relay, a fuse, and a pre-charge relay.

[0022] In some embodiments, the box body includes side walls arranged parallel to the vertical direction, and the high-voltage box also includes fixing parts arranged on the outer surface of the side walls, which are used to fix the high-voltage connection harness of the high-voltage component and the low-voltage connection harness of the low-voltage component.

[0023] By setting the fixing parts, the high-voltage connection harness and the low-voltage connection harness can be stored and fixed, and the collected high-voltage connection harness and the low-voltage connection harness can be routed along the side wall, making the overall structure of the high-voltage box more smooth.

[0024] In a second aspect, the present application also provides a high-voltage box for use in the battery device described above.

[0025] In a third aspect, the present application also provides an electrical device comprising the battery device as described above.

[0026] In a fourth aspect, the present application also provides an energy storage device, comprising the battery device as described above.

[0027] The above-mentioned battery device, high-voltage box, electrical equipment and energy storage equipment are enclosed by the box body to form at least two accommodating spaces arranged in sequence along the vertical direction, and the high-voltage components and low-voltage components are respectively arranged in the at least two accommodating spaces. In this way, on the one hand, the space in the vertical direction can be more fully utilized, and on the other hand, the high-voltage components and the low-voltage components are arranged separately in the vertical and horizontal spaces, so that the high-voltage components and the low-voltage components do not affect each other, thereby improving the performance of the high-voltage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 FIG. 1 is a schematic diagram of an exploded structure of a battery device according to one or more embodiments.

[0029] Figure 2 A schematic structural diagram of a high voltage box according to one or more embodiments.

[0030] Figure 3 Schematic diagram of the structure of a high-voltage box according to one or more embodiments.

[0031] Figure 4 Schematic diagram of the structure of a box body in a high-voltage box according to one or more embodiments.

[0032] Figure 5 Schematic diagram of the structure of a box body in a high-voltage box according to one or more embodiments.

[0033] Figure 6 Schematic diagram of the structure of a box body in a high-voltage box according to one or more embodiments.

[0034] Figure 7 Schematic diagram of the structure of a box body in a high-voltage box according to one or more embodiments.

[0035] Explanation of the accompanying drawings: 100, battery device; 10, box body; 20, battery cell; 30, high-voltage box; 11, first part; 12, second part; 31, box body; 32, high-voltage component; 33, low-voltage component; 34, fixing part; 311, first plate; 312, first subspace; 313, second subspace; 314, second plate; 315, third plate; 316, outer frame; 317, subcavity; 318, side wall; 321, lead-out terminal; 331, low-voltage connecting harness; 332, sampling terminal; a, vertical direction; b, horizontal direction. DETAILED DESCRIPTION

[0036] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0037] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0038] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0039] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0040] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0041] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0042] Currently, market developments indicate that battery applications are becoming increasingly widespread. They are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric cars, as well as in other fields. As the application of power batteries continues to expand, market demand is also growing.

[0043] The high-voltage box is an important component of the battery energy storage system. It not only controls the charging and discharging of the battery system and provides overvoltage and overcurrent protection, thereby ensuring the power transmission of the energy storage system, but also can detect insulation faults, circuit faults, grounding faults and high-voltage faults in the entire high-voltage system at any time.

[0044] The interior of the high-voltage box is usually equipped with various high-voltage or low-voltage components, and most of them are arranged in a horizontal single layer, which makes the internal space utilization of the high-voltage box low and increases the horizontal space share, resulting in an increase in the length of the battery device, which is not conducive to the rational utilization of the space of the battery device.

[0045] Furthermore, since both high-voltage and low-voltage components are arranged horizontally inside the high-voltage box, they are usually placed close together with relatively small spacing. This can cause a high-voltage short circuit if insulation failure or physical compression occurs.

[0046] Based on the above considerations, in order to solve the problem that the internal space of the current high-voltage box is limited and the internal components are compactly arranged, which not only leads to low utilization of the internal space of the high-voltage box, but also the high and low voltages are easily interfered with each other, affecting the performance of the high-voltage box, one or more embodiments of the present application provide a battery device, which is formed by enclosing a box body to form at least two accommodating spaces arranged in sequence along the vertical direction, and the high-voltage components and the low-voltage components are respectively arranged in at least two accommodating spaces. In this way, on the one hand, the space in the vertical direction can be more fully utilized, and on the other hand, the high-voltage components and the low-voltage components are arranged separately in the vertical and horizontal spaces, so that the high-voltage components and the low-voltage components do not affect each other, thereby improving the performance of the high-voltage box.

[0047] It should be noted that the battery device mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include multiple battery cells, which are connected in series, parallel, or hybrid via a busbar.

[0048] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells. For example, the battery cell assembly may be a battery module, which is formed by arranging and securing multiple battery cells into a single module. For example, a battery module may be formed by bundling multiple battery cells using cable ties.

[0049] In some embodiments, the battery device may be a battery pack, which includes a case and one or more battery cell assemblies, wherein the battery cell assemblies are housed in the case.

[0050] As an example, the battery cell assembly may be a battery module, and the battery cell assembly may be accommodated in the box by fixing the battery module in the box.

[0051] As an example, the battery cell assembly may also be housed in the box by directly fixing the plurality of battery cells to the box.

[0052] Please also refer to Figure 1 、 Figure 2 as well as Figure 3 One embodiment of the present application provides a battery device 100, comprising a housing 10, a battery cell 20, and a high-voltage box 30. The battery cell 20 is disposed within the housing 10, and the high-voltage box 30 is disposed within the housing 10 and electrically connected to the battery cell 20. The high-voltage box 30 comprises a housing 31, a high-voltage assembly 32, and a low-voltage assembly 33. The housing 31 is constructed to form at least two accommodating spaces arranged sequentially along a vertical direction a. The high-voltage assembly 32 and the low-voltage assembly 33 are respectively disposed within the at least two accommodating spaces. The high-voltage assembly 32 and the low-voltage assembly 33 are respectively configured to electrically connect to external structures.

[0053] It should be noted that the box body 10 is used to provide a storage space for the battery cell 20, and the box body 10 can adopt a variety of structures. In some embodiments, the box body 10 may include a first part 11 and a second part 12, and the first part 11 and the second part 12 cover each other, and the first part 11 and the second part 12 together define a space for accommodating the battery cell 20. The second part 12 can be a hollow structure with one end open, and the first part 11 can be a plate-like structure, and the first part 11 covers the open side of the second part 12; the first part 11 and the second part 12 can also be hollow structures with one side open, and the open side of the first part 11 covers the open side of the second part 12. Of course, the box body 10 formed by the first part 11 and the second part 12 can be a variety of shapes, such as a cylinder, a rectangular parallelepiped, etc.

[0054] In the battery device 100, there may be multiple battery cells 20, which may be connected in series, in parallel, or in a hybrid connection. A hybrid connection refers to a combination of series and parallel connections among the multiple battery cells 20. The multiple battery cells 20 may be directly connected in series, in parallel, or in a hybrid connection, and then the entire battery unit 20 may be housed within the housing 10. Alternatively, the battery device 100 may comprise multiple battery cells 20 connected in series, in parallel, or in a hybrid connection to form a battery module, which is then further connected in series, in parallel, or in a hybrid connection to form a single unit and housed within the housing 10. The battery device 100 may also include other structures, such as a busbar assembly for electrically connecting the multiple battery cells 20.

[0055] Each battery cell 20 may be a secondary battery or a primary battery, and may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 may be cylindrical, flat, rectangular, or in other shapes.

[0056] Specifically, the box body 31 can be used to accommodate and protect the various components in the high-voltage box 30. At least two receiving spaces are arranged in sequence along the vertical direction a inside the box body 31. That is, along the vertical direction a, the interior space of the box body 31 is divided into at least two receiving spaces.

[0057] It can be understood that, as a specific embodiment, the interior of the box body 31 can be divided into two upper and lower accommodation spaces, or can be divided into three upper, middle and lower accommodation spaces, or more layers of accommodation spaces.

[0058] The high-voltage assembly 32 typically includes components such as relays, fuses, and resistors, and each component can be connected via a high-voltage copper busbar. The low-voltage assembly 33 typically includes components such as sampling terminals 332 and detection components, and each component can be connected via a low-voltage wiring harness.

[0059] The high-voltage assembly 32 and the low-voltage assembly 33 can be electrically connected to an external structure through high-voltage copper bars or connection harnesses respectively, so as to realize input or output of the high-voltage box 30.

[0060] Further, the high-voltage assembly 32 and the low-voltage assembly 33 are arranged in two different accommodation spaces respectively, so that the high-voltage assembly 32 and the low-voltage assembly 33 can be arranged independently, and they are not easy to interfere with each other, and the structure is more stable.

[0061] Through the above structure, on the one hand, the space in the vertical direction a can be more fully utilized, and on the other hand, the high-voltage assembly 32 and the low-voltage assembly 33 are arranged separately in the vertical and horizontal spaces, so that the high-voltage assembly 32 and the low-voltage assembly 33 do not affect each other, and the use performance of the high-voltage box 30 is improved.

[0062] As shown in Figure 4 In some embodiments, the box body 31 includes a first plate body 311 extending along the horizontal direction b, and the first plate body 311 is formed with a first sub-space 312 and a second sub-space 313 on opposite sides along the vertical direction a, one of the first sub-space 312 and the second sub-space 313 is used to arrange the high-voltage assembly 32, and the other is used to arrange the low-voltage assembly 33.

[0063] Specifically, the first plate body 311 is arranged horizontally, thereby separating to form two layers of accommodation spaces, i.e., the first sub-space 312 and the second sub-space 313. That is, the first sub-space 312 and the second sub-space 313 can be formed as open spaces and arranged in sequence along the vertical direction a.

[0064] In this way, the high-voltage assembly 32 and the low-voltage assembly 33 are arranged in the first sub-space 312 and the second sub-space 313 respectively, which not only can more fully utilize the space in the vertical direction a, but also release the space in the horizontal direction b to the energy bin and other structures, and can further increase the power of the battery device. In addition, the high-voltage assembly 32 and the low-voltage assembly 33 are arranged in different spaces respectively, which can play a mutual isolation role, reduce the probability of mutual interference between the high-voltage assembly 32 and the low-voltage assembly 33, and make the working process more stable.

[0065] As shown in Figure 5As shown, in some embodiments, the box body 31 includes a first plate 311, a second plate 314, and a third plate 315. The first plate 311 extends along a horizontal direction b, and the second plate 314 and the third plate 315 are connected to opposite ends of the first plate 311 along a vertical direction a and extend toward the same side. The interior and exterior of the first plate 311, the second plate 314, and the third plate 315 are respectively configured to form a first subspace 312 and a second subspace 313. One of the first subspace 312 and the second subspace 313 is used to accommodate the high-voltage component 32, and the other is used to accommodate the low-voltage component 33.

[0066] Specifically, the first plate 311 is arranged horizontally, while the second plate 314 and the third plate 315 are both arranged vertically and connected to opposite ends of the first plate 311 along the horizontal direction b. Thus, the first plate 311, the second plate 314, and the third plate 315 collectively form a semi-enclosed space, while the space outside the first plate 311, the second plate 314, and the third plate 315 forms another space, namely the first subspace 312 and the second subspace 313, respectively.

[0067] Thus, placing the high-voltage assembly 32 and the low-voltage assembly 33 in the first subspace 312 and the second subspace 313, respectively, not only fully utilizes the vertical space a but also frees up the horizontal space b for structures such as the energy storage compartment, further increasing the battery capacity. Furthermore, the high-voltage assembly 32 and the low-voltage assembly 33 in separate spaces isolate them from each other, reducing the likelihood of interference between them and ensuring more stable operation.

[0068] like Figure 6 As shown, in some embodiments, the box body 31 includes an outer frame 316 and a first plate body 311. The first plate body 311 is arranged inside the outer frame 316 along the horizontal direction b, and divides the interior of the outer frame 316 into a first subspace 312 and a second subspace 313 arranged in sequence along the vertical direction a. One of the first subspace 312 and the second subspace 313 is used to set the high-voltage component 32, and the other is used to set the low-voltage component 33.

[0069] Specifically, a closed accommodation space is formed inside the outer frame 316 , and the first plate 311 is horizontally arranged inside the outer frame 316 to divide the accommodation space to form a first subspace 312 and a second subspace 313 inside the outer frame 316 .

[0070] Thus, placing the high-voltage assembly 32 and the low-voltage assembly 33 in the first subspace 312 and the second subspace 313, respectively, not only fully utilizes the vertical space a but also frees up the horizontal space b for structures such as the energy storage compartment, further increasing the battery capacity. Furthermore, the high-voltage assembly 32 and the low-voltage assembly 33 in separate spaces isolate them from each other, reducing the likelihood of interference between them and ensuring more stable operation.

[0071] like Figure 7 As shown, in some embodiments, the first subspace 312 is located above the second subspace 313 along the vertical direction a, the high-pressure component 32 is disposed in the first subspace 312 , and the low-pressure component 33 is disposed in the second subspace 313 .

[0072] Specifically, the interior of the box body 31 is divided into two layers, namely, a first subspace 312 and a second subspace 313 , wherein the first subspace 312 is located in the upper layer and the second subspace 313 is located in the lower layer.

[0073] It should be noted that when the high-voltage box 30 is installed in the battery device, the bottom of the high-voltage box 30 is located on the bottom plate of the box, that is, the second subspace 313 is located near the bottom plate of the box. When the battery device 100 is used in electrical equipment or other structures, the bottom of the battery device 100 may be subjected to external impact.

[0074] Based on this, the low-voltage assembly 33 is placed in the second subspace 313 on the lower layer, and the high-voltage assembly 32 is placed in the first subspace 312 on the upper layer. When the bottom of the battery device 100 is impacted by external force, the high-voltage assembly 32 is farther away from the bottom and is isolated by the low-voltage assembly 33 in the second subspace 313. This can better protect the high-voltage assembly 32 and reduce the risk of short circuiting in the high-voltage assembly 32.

[0075] Therefore, through the above structure, when the high-voltage box 30 is applied to the battery device, the high-voltage component 32 can be better protected and the risk of short circuit of the high-voltage component 32 can be reduced.

[0076] Please see again Figure 3 In some embodiments, the low-voltage assembly 33 includes a low-voltage connection harness 331 , and the low-voltage connection harness 331 is routed along a vertical direction a toward a side away from the first subspace 312 .

[0077] Specifically, the low-voltage component 33 generally includes various sampling terminals 332 and a low-voltage connection harness 331. The various sampling terminals 332 are arranged in the first subspace 312, and then connected through the low-voltage connection harness 331, and connected to the external structure through the low-voltage connection harness 331 to smoothly output the sampling information.

[0078] It should be noted that during actual assembly, a certain gap is typically left between the bottom of the high-voltage box 30 and the bottom plate of the battery device 100. Since the low-voltage connection harness 331 requires less space, the low-voltage assembly 33 is placed in the second subspace 313 located at the lower level, and the low-voltage connection harness 331 is led out from the bottom. This further reduces installation space between the high-voltage box 30 and the battery device 100.

[0079] Through the above structure, the low-voltage component 33 is set in the second subspace 313 located in the lower layer, and the low-voltage connection harness 331 is led out from the bottom, which can further save the installation space between the high-voltage box 30 and the battery device 100 and improve space utilization.

[0080] In some embodiments, the high-voltage assembly 32 includes a lead-out terminal 321 , which is disposed along the vertical direction a on a side of the first subspace 312 away from the second subspace 313 .

[0081] Specifically, the lead terminals 321 of the high-voltage assembly 32 serve as the terminals for components such as relays, fuses, and resistors. The lead terminals 321 are positioned vertically a on the side of the first subspace 312 facing away from the second subspace 313, i.e., on the upper side of the first subspace 312. This further separates the lead terminals 321 of the high-voltage assembly 32 from the low-voltage assembly 33, improving the stability of the high-voltage assembly 32.

[0082] Furthermore, the lead-out terminal 321 of the high-voltage component 32 can be connected via a high-voltage copper busbar, that is, the high-voltage copper busbar is horizontally arranged above the first subspace 312 and electrically connected to the lead-out terminal 321 of the high-voltage component 32 .

[0083] Through the above structure, the lead-out end 321 of the high-voltage component 32 can be further separated from the low-voltage component 33 , thereby improving the stability of the high-voltage component 32 .

[0084] like Figure 7 As shown, in some embodiments, the high-voltage component 32 includes multiple sub-components (not shown in the figure), the low-voltage component 33 includes multiple sub-plug-ins (not shown in the figure), and each accommodating space includes multiple sub-cavities 317, and each sub-component and each sub-plug-in is respectively arranged in the corresponding sub-cavity 317.

[0085] Specifically, the multiple sub-components in the high-voltage component 32 may include, but are not limited to, relays, fuses, resistors and other components, and the multiple sub-plug-ins in the low-voltage component 33 may include, but are not limited to, various sampling terminals 332.

[0086] Each of the accommodation spaces is divided into a plurality of sub-cavities 317, which can be formed by injection molding.

[0087] Further, when the high-voltage assembly 32 is arranged in the first sub-space 312, each of the sub-components in the high-voltage assembly 32 is arranged in a different sub-cavity 317 in the first sub-space 312. When the low-voltage assembly 33 is arranged in the second sub-space 313, each of the sub-plug-in components in the low-voltage assembly 33 is arranged in a different sub-cavity 317 in the second sub-space 313.

[0088] In this way, each of the sub-components in the high-voltage assembly 32 is arranged in a different sub-cavity 317, and each of the sub-plug-in components in the low-voltage assembly 33 is arranged in a different sub-cavity 317, which can further reduce the probability of mutual interference and mutual influence between the sub-components or the sub-plug-in components, and further improve the working stability of the high-voltage box 30.

[0089] In some embodiments, the high-voltage assembly 32 includes a main positive relay, a main negative relay, a fuse, and a pre-charge relay. Of course, the high-voltage assembly 32 can also include other specific components, which can be adjusted according to actual use requirements, and will not be described here.

[0090] As shown in FIGS. Figure 2 and Figure 4 In some embodiments, the box body 31 includes a side wall 318 arranged parallel to the vertical direction a, and the high-voltage box 30 further includes a fixing member 34 arranged on the outer surface of the side wall 318, which is used to fix the high-voltage connection harness of the high-voltage assembly 32 and the low-voltage connection harness of the low-voltage assembly 33.

[0091] Specifically, the box body 31 is usually made of an insulating member, that is, the side wall of the box body 31 is also arranged as an insulating member. The side wall 318 is arranged parallel to the vertical direction a, and the side wall 318 can be the second plate body 314 and the third plate body 315 surrounding the outer periphery of the first plate body 311, and of course, the side wall 318 can also be arranged outside the second plate body 314 and the third plate body 315.

[0092] The high-voltage assembly 32 can also include a high-voltage connection harness, one end of which can be connected to the lead-out end 321, and the other end can be extended and electrically connected to the corresponding external structure.

[0093] The fixing member 34 is arranged on the outer surface of the side wall 318, the high-voltage connection harness of the high-voltage assembly 32 is led out from the lead-out end 321, the low-voltage connection harness 331 of the low-voltage assembly 33 is led out from the bottom, and then the high-voltage connection harness and the low-voltage connection harness 331 can be collected and fixed through the fixing member 34 on the side wall 318, so that each connection harness can be uniformly routed along the side wall 318.

[0094] Furthermore, the fixing member 34 may be, but is not limited to, a cable tie fixed to the side wall 318 , and each connecting harness may be stored and fixed by the cable tie.

[0095] By providing the fixing member 34 , each connecting wire harness can be stored and fixed, and each connecting wire harness can be routed along the side wall 318 , making the overall structure of the high-voltage box 30 more streamlined.

[0096] Based on the same concept as the above-mentioned battery device 100 , the present application further provides a high-voltage box 30 , which is applied to the above-mentioned battery device 100 .

[0097] Based on the same concept as the above-mentioned battery device 100 , the present application further provides an electrical device, including the above-mentioned battery device 100 .

[0098] Based on the same concept as the above-mentioned battery device 100 , the present application also provides an energy storage device, including the above-mentioned battery device 100 .

[0099] According to one or more embodiments, when the present application is used, first, the sampling terminals 332 and other components in the low-voltage assembly 33 are respectively arranged in the sub-cavities 317 of the second sub-space 313, and the sampling terminals 332 are connected through the low-voltage connection harness 331. Then, the low-voltage connection harness 331 is led out from the bottom of the second sub-space 313 to facilitate electrical connection with the external structure.

[0100] Furthermore, the relays, fuses, resistors and other components in the high-voltage assembly 32 are respectively arranged in each sub-cavity 317 of the first sub-space 312, and the lead-out end 321 of each component is set toward the top of the first sub-space 312, and then led out through the high-voltage copper bus and high-voltage connecting harness.

[0101] After the connection harnesses of the high-voltage assembly 32 and the low-voltage assembly 33 are led out, they can be stored and fixed by the fixing parts 34 on the side wall 318, making the overall structure more concise.

[0102] Through the above structure, not only can the space in the vertical direction a be more fully utilized and more horizontal space be released; but the low-voltage component 33 and the high-voltage component 32 can also be better separated, reducing the probability of interference between the two.

[0103] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0104] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A battery device, characterized in that: include: Box; A battery cell is arranged inside the box; and A high-voltage box is arranged inside the box body and is electrically connected to the battery cell; the high-voltage box includes a box body, a high-voltage component and a low-voltage component. The box body structure forms at least two accommodating spaces arranged in sequence along the vertical direction. The high-voltage component and the low-voltage component are respectively arranged in the at least two accommodating spaces, and the high-voltage component and the low-voltage component are respectively used to be electrically connected to the external structure.

2. The battery device according to claim 1, wherein: The box body includes a first plate body extending along the horizontal direction, and the first plate body is respectively formed into a first subspace and a second subspace on opposite sides along the vertical direction. One of the first subspace and the second subspace is used to set the high-voltage component, and the other is used to set the low-voltage component.

3. The battery device according to claim 1, wherein: The box body includes a first plate, a second plate, and a third plate, wherein the first plate extends in the horizontal direction, and the second plate and the third plate are connected to opposite ends of the first plate in the vertical direction and extend toward the same side; The interior and exterior of the first plate, the second plate and the third plate are respectively constructed to form a first subspace and a second subspace, one of the first subspace and the second subspace is used to set the high-voltage component, and the other is used to set the low-voltage component.

4. The battery device according to claim 1, wherein: The box body includes an outer frame and a first plate body, the first plate body is arranged inside the outer frame along the horizontal direction, and divides the inside of the outer frame into a first subspace and a second subspace arranged in sequence along the vertical direction, one of the first subspace and the second subspace is used to set the high-voltage component, and the other is used to set the low-voltage component.

5. The battery device according to any one of claims 2 to 4, characterized in that: The first subspace is located above the second subspace along the vertical direction, the high-voltage component is arranged in the first subspace, and the low-voltage component is arranged in the second subspace.

6. The battery device according to claim 5, characterized in that The low-voltage component includes a low-voltage connection harness, and the low-voltage connection harness is routed along the vertical direction toward a side away from the first subspace.

7. The battery device according to claim 5, characterized in that The high-voltage component includes a lead-out terminal, and the lead-out terminal is arranged on a side of the first subspace away from the second subspace along the vertical direction.

8. The battery device according to claim 1, wherein: The high-voltage component includes a plurality of sub-components, the low-voltage component includes a plurality of sub-plug-ins, each of the accommodating spaces includes a plurality of sub-cavities, and each of the sub-components and each of the sub-plug-ins are respectively arranged in the corresponding sub-cavity.

9. The battery device according to claim 1, wherein: The high-voltage assembly includes a main positive relay, a main negative relay, a fuse, and a pre-charge relay.

10. The battery device according to claim 1, wherein: The box body includes a side wall arranged parallel to the vertical direction, and the high-voltage box also includes a fixing member arranged on the outer surface of the side wall, and the fixing member is used to fix the high-voltage connection harness of the high-voltage component and the low-voltage connection harness of the low-voltage component.

11. A high voltage box, characterized in that: Applicable to the battery device according to any one of claims 1 to 10.

12. An electrical device, characterized in that: Comprising the battery device according to any one of claims 1 to 10.

13. An energy storage device, characterized in that: Comprising the battery device according to any one of claims 1 to 10.

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