Battery boxes, battery devices and electrical equipment

Abstract

This application discloses a battery box, a battery device, and an electrical appliance. The battery device includes a battery box and individual battery cells. A first mounting structure is provided on one side of the battery box in a first direction, and the individual battery cells are disposed inside the battery box. The first mounting structure includes at least two types of mounting holes extending along a second direction, which is the height direction of the battery box and intersects with the first direction. On a projection plane perpendicular to the second direction, the projections of the various types of mounting holes are staggered, so that when at least two battery devices are stacked along the second direction, adjacent battery devices can be installed through the staggered mounting holes. The technical solution of this application improves the convenience of disassembly and maintenance when battery devices are stacked along the height direction.

Description

Technical Field

[0001] This application relates to the field of battery device technology, and in particular to a battery box, battery device, and electrical equipment. Background Technology

[0002] When battery devices in related technologies are stacked in the height direction, the disassembly and assembly of adjacent battery devices are prone to interference, making the disassembly, assembly and maintenance of the battery devices more difficult. Utility Model Content

[0003] The main objective of this application is to provide a battery device that improves the ease of disassembly and maintenance when the battery device is stacked along the height direction.

[0004] To achieve the above objectives, the battery device proposed in this application includes:

[0005] A battery box, wherein a first mounting structure is provided on one side of the outer side in a first direction; and

[0006] A battery cell, wherein the battery cell is located inside the battery box.

[0007] The first mounting structure includes at least two types of mounting holes, which extend along a second direction, which is the height direction of the battery box and intersects with the first direction.

[0008] On a projection plane perpendicular to the second direction, the projections of various types of hanging holes are staggered so that when at least two battery devices are stacked along the second direction, two adjacent battery devices can be installed through the staggered hanging holes.

[0009] The battery device of this application has a first mounting structure with at least two types of mounting holes on one side of the outer side of the battery box in a first direction. The projections of each type of mounting hole on a projection plane perpendicular to a second direction (the height direction of the battery box) are staggered. This allows any two adjacent battery devices to be installed using different types of mounting holes when stacked along the height direction, enabling them to be installed through staggered mounting holes. Since the locking structure passes through the mounting holes to lock and fix the battery devices, the locking structure for the upper battery device can be staggered from the locking structure for the lower battery device. Therefore, the locking structure for the upper battery device does not occupy the disassembly and assembly space above the locking structure for the lower battery device, allowing operators to place disassembly and assembly tools above the locking structure for the lower battery device, thus improving the convenience of battery device disassembly, assembly, and maintenance. In addition, the side where the first mounting structure is located can be the side where the battery device faces the operator, which makes it convenient for the operator to disassemble and assemble the locking structure that passes through the first mounting structure using disassembly and assembly tools, thereby further improving the convenience of disassembly, assembly and maintenance of the battery device.

[0010] In some embodiments, the at least two types of hanging holes are arranged along a third direction, which intersects the first direction and the second direction.

[0011] Therefore, the space in the width direction of the front of the battery box can be fully utilized, so that when the operator faces the front of the battery box to perform disassembly and assembly operations, all kinds of hanging holes can be relatively close to the operator. In addition, the locking structure that passes through the hanging holes can also be relatively close to the operator, so that the operator can perform corresponding disassembly and assembly operations on each locking structure.

[0012] In some embodiments, the at least two types of mounting holes include a first type of mounting hole and a second type of mounting hole, wherein the first type of mounting hole includes at least two first mounting holes and the second type of mounting hole includes at least two second mounting holes.

[0013] This allows each battery device to be secured with at least two mounting holes, thereby improving the stability of the battery device during installation on electrical equipment.

[0014] In some embodiments, the first type of mounting hole includes two first mounting holes, which are distributed on both sides of the centerline of the battery box;

[0015] The second type of mounting hole includes two second mounting holes, which are distributed on both sides of the center line of the battery box and located between the two first mounting holes.

[0016] This allows each battery device to be secured using two mounting holes located on either side of the centerline of the battery box, ensuring even force distribution on both sides and improving the stability of the battery device during installation on electrical equipment.

[0017] In some embodiments, the battery box includes:

[0018] Box; and

[0019] A lid is provided, which covers one side of the box body in the second direction and surrounds the box body to form a receiving cavity. The battery cell is disposed in the receiving cavity, and the hanging hole is located on the side of the box body away from the lid.

[0020] This design allows the mounting hole to be positioned closer to the wall surface of the support frame that supports the battery when installing the battery unit onto the equipment's mounting bracket. This facilitates the connection between the battery unit and the support frame using a shorter locking mechanism. Furthermore, when the battery unit is installed in a push-pull configuration within the mounting cavity of the support frame, the portion of the support frame corresponding to the mounting hole can be flush with the bottom surface of the battery compartment, thus avoiding any interference with the push-pull installation of the battery unit.

[0021] In some embodiments, the housing includes a bottom plate, the bottom plate and the cover are spaced apart from each other, and the bottom plate has a heat exchange channel inside;

[0022] The battery box also includes a current collector, which is located on one side of the bottom plate of the box in the first direction. The current collector is provided with a liquid inlet and a liquid outlet, which are connected to the heat exchange channel.

[0023] The at least two types of hanging holes include a first type of hanging hole and a second type of hanging hole, wherein the first type of hanging hole is provided on the bottom plate of the box and the second type of hanging hole is provided on the collector.

[0024] Therefore, by integrating the heat exchange channel into the bottom plate of the battery box, the cold plate can be omitted. Furthermore, by integrating some of the first-type mounting holes into the bottom plate and the current collector, components requiring additional mounting holes can be eliminated. This simplifies the number of battery box components, thereby reducing the amount of welding required for the battery assembly and minimizing defects such as structural deformation or cracks caused by welding stress due to improper welding.

[0025] In some embodiments, the bottom plate of the box is provided with an installation notch on one side in the first direction, and the current collector is disposed in the installation notch, with the first type of hanging holes distributed on both sides of the installation notch in the second direction.

[0026] Therefore, by adapting the current collector to the mounting notch, the compactness of the current collector's distribution with the bottom plate of the battery box can be improved, thereby reducing the overall volume of the battery box and improving the convenience of subsequent installation and arrangement within a limited space. Furthermore, distributing the first type of mounting holes on both sides of the mounting notch in the second direction facilitates the collinearity of the center points of each mounting hole, improving the regularity of the mounting hole distribution.

[0027] In some embodiments, the bottom plate is configured as an integrally extruded structure extruded along the first direction, the bottom plate having an extrusion cavity configured as the heat exchange channel, and the first type of hanging hole being isolated from the heat exchange channel.

[0028] Therefore, there is no need for an additional cold plate for heat exchange between individual battery cells, which simplifies the number of components and eliminates the need for welding the cold plate. Furthermore, the use of a one-piece extrusion molding process to form the heat exchange channel within the bottom plate through an extrusion cavity also ensures a high level of sealing for this channel.

[0029] In some embodiments, the box body further includes two box side panels and two box end panels, the two box side panels are respectively disposed on both sides of the box bottom plate in the third direction, the box bottom plate and at least one box side panel are configured as an integral extrusion molding structure, and the two box end panels are respectively disposed on both sides of the box bottom plate in the first direction;

[0030] The bottom plate, the two side plates, and the two end plates of the box are arranged to form a receiving groove. The box cover is closed on the opening of the receiving groove and is arranged to form the receiving cavity together with the receiving groove.

[0031] Therefore, the bottom plate of the battery box and at least one of the two side plates are made into an integral extrusion molding structure, so that welding work can be omitted between the bottom plate and the side plate.

[0032] In some embodiments, the extrusion cavity is open on both sides in the first direction, and a plurality of partition plates are arranged side by side along the third direction inside the extrusion cavity to divide the extrusion cavity into a plurality of sub-channels, and the plurality of sub-channels are connected to form the heat exchange channel;

[0033] The current collector covers an opening on one side of the bottom plate of the battery box, and the battery box also includes a sealing member that covers an opening on the other side of the bottom plate of the battery box.

[0034] Therefore, by designing the bottom plate as a hollow structure with openings at both ends in the first direction, and using internal partitions to divide the heat exchange channels into multiple sub-channels arranged side-by-side along the second direction, the structure of the bottom plate is simplified, facilitating the formation of the heat exchange channels within the bottom plate through a one-piece extrusion molding process. Furthermore, a manifold can seal one end of each of the multiple sub-channels and also provide transitional connectivity between these sub-channels and the external circulation pipeline, thus enabling a single component to perform multiple functions and simplifying the number of components in the battery device. Additionally, a sealing component can seal the other end of each of the multiple sub-channels, further simplifying the number of components in the battery device by ensuring the heat exchange channels are sealed at that end.

[0035] In some embodiments, the battery box is further provided with a handle, the handle and the first mounting structure are located on the same side of the battery box, and on a projection plane perpendicular to the second direction, the projection of the handle and the projection of the first mounting structure are misaligned.

[0036] Therefore, a handle is provided on the front side of the battery box, which allows the operator to apply force to the battery device to complete the loading and unloading of the battery on the electrical equipment.

[0037] In some embodiments, the battery box is provided with a second mounting structure on at least one of the two sides in the third direction, the third direction intersecting the first direction and the second direction;

[0038] The second mounting structure includes a third mounting hole, which extends along the first direction.

[0039] This strengthens the locking constraint on the battery unit, thereby improving the stability of the battery unit installation. Furthermore, the third mounting hole extends along the front-to-back direction, allowing the battery unit to be installed in a push-pull configuration within the mounting cavity of the support frame. This makes it easier for operators to directly use extended tools to reach into the mounting cavity from front to back to assemble or disassemble the battery unit at the third mounting hole.

[0040] In some embodiments, the size of the hanging hole in the first direction is greater than the size in the third direction.

[0041] Therefore, even if the first locking component inserted into the hanging hole is not tightened, the battery box can still be finely adjusted in the first direction so that it can be accurately installed in the first direction.

[0042] In some embodiments, the third mounting hole is larger in the third direction than in the second direction.

[0043] Therefore, even if the second locking member inserted through the third mounting hole is not tightened, the battery box can still be finely adjusted in the third direction to ensure accurate centered installation in the third direction.

[0044] In some embodiments, the battery box is provided with a connecting lug, and the third mounting hole is provided on the connecting lug.

[0045] Therefore, the connecting ear can provide a better setting position so as to set a third mounting hole extending along the first direction.

[0046] In some embodiments, the connecting ear is provided with a positioning hole, which is arranged side by side with the third mounting hole.

[0047] Therefore, the positioning holes can be used to position the battery device on the support frame of the electrical equipment, thereby improving the installation efficiency of the battery device.

[0048] This application also proposes an electrical appliance, including

[0049] support frame; and

[0050] The battery device described above, wherein the number of battery devices is at least two, and the at least two battery devices are arranged along the second direction; and

[0051] A first locking member passes through the hanging hole to connect the battery device to the support frame;

[0052] In any two adjacent battery devices, the hanging hole through which the first locking member for connecting one battery device passes and the hanging hole through which the first locking member for connecting the other battery device pass are projected out of alignment on a projection plane perpendicular to the second direction.

[0053] Therefore, the first locking component that secures the battery device located above will not affect the installation or removal of the battery device, making it convenient to install or remove the battery device.

[0054] In some embodiments, the support frame is provided with at least two mounting cavities, which are arranged along the second direction, and each mounting cavity has a mounting opening at one end in the first direction;

[0055] Each of the battery devices is installed in one of the mounting cavities, and the first mounting hole is located in the battery box on the side facing the mounting opening.

[0056] This allows operators to easily install and remove the battery unit using a push-pull method, further improving the convenience of its installation and removal.

[0057] This application also proposes a battery box, wherein a first mounting structure is provided on one side of the outer side of the battery box in a first direction, the first mounting structure including at least two types of mounting holes, the mounting holes extending along a second direction, the second direction being the height direction of the battery box and intersecting with the first direction;

[0058] On a projection plane perpendicular to the second direction, the projections of various types of hanging holes are staggered so that when at least two battery devices are stacked along the second direction, two adjacent battery devices can be installed through the staggered hanging holes.

[0059] Therefore, the locking structure used to secure the upper battery device will not occupy the disassembly and assembly operation space above the locking structure used to secure the lower battery device. This makes it convenient for operators to place disassembly and assembly tools above the locking structure of the lower battery device to disassemble and assemble the lower battery device, thus improving the convenience of disassembly, assembly and maintenance of the battery device.

[0060] In some embodiments, the at least two types of hanging holes are arranged along a third direction, which intersects the first direction and the second direction.

[0061] Therefore, the space in the width direction of the front of the battery box can be fully utilized, so that when the operator faces the front of the battery box to perform disassembly and assembly operations, all kinds of hanging holes can be relatively close to the operator, and the locking structure that passes through the hanging holes can also be relatively close to the operator, thus facilitating the operator to perform corresponding disassembly and assembly operations on each locking structure.

[0062] In some embodiments, the at least two types of hanging holes include a first type of hanging hole and a second type of hanging hole, wherein the first type of hanging hole includes two first mounting holes and the second type of hanging hole includes two second mounting holes.

[0063] Two first mounting holes are located on both sides of the center line of the battery box, and two second mounting holes are located on both sides of the center line of the battery box, between the two first mounting holes.

[0064] This allows each battery device to be secured using two mounting holes located on either side of the centerline of the battery box, ensuring even force distribution on both sides and improving the stability of the battery device during installation on electrical equipment.

[0065] In some embodiments, the battery box includes:

[0066] Box; and

[0067] A lid is provided, which covers one side of the box body in the second direction and surrounds the box body to form a receiving cavity. The battery cell is disposed in the receiving cavity, and the hanging hole is located on the side of the box body away from the lid.

[0068] This design allows the mounting hole to be positioned closer to the wall surface of the support frame that supports the battery when installing the battery unit onto the equipment's mounting bracket. This facilitates the connection between the battery unit and the support frame using a shorter locking mechanism. Furthermore, when the battery unit is installed in a push-pull configuration within the mounting cavity of the support frame, the portion of the support frame corresponding to the mounting hole can be flush with the bottom surface of the battery compartment, thus avoiding any interference with the push-pull installation of the battery unit.

[0069] In some embodiments, the housing includes a bottom plate, the bottom plate and the cover are spaced apart from each other, and the bottom plate has a heat exchange channel inside;

[0070] The battery box also includes a current collector, which is located on one side of the bottom plate of the box in the first direction. The current collector is provided with a liquid inlet and a liquid outlet, which are connected to the heat exchange channel.

[0071] The at least two types of hanging holes include a first type of hanging hole and a second type of hanging hole, wherein the first type of hanging hole is provided on the bottom plate of the box and the second type of hanging hole is provided on the collector.

[0072] Therefore, by integrating the heat exchange channel into the bottom plate of the battery box, the cold plate can be omitted. Furthermore, by integrating some of the first-type mounting holes into the bottom plate and the current collector, components requiring additional mounting holes can be eliminated. This simplifies the number of battery box components, thereby reducing the amount of welding required for the battery assembly and minimizing defects such as structural deformation or cracks caused by welding stress due to improper welding.

[0073] In some embodiments, the bottom plate is configured as an integrally extruded structure extruded along the first direction, the bottom plate having an extrusion cavity configured as the heat exchange channel, and the first type of hanging hole being isolated from the heat exchange channel.

[0074] Therefore, there is no need for an additional cold plate for heat exchange between individual battery cells, which simplifies the number of components and eliminates the need for welding the cold plate. Furthermore, the use of a one-piece extrusion molding process to form the heat exchange channel within the bottom plate through an extrusion cavity also ensures a high level of sealing for this channel.

[0075] In some embodiments, the box body further includes two box side panels and two box end panels, the two box side panels are respectively disposed on both sides of the box bottom plate in the third direction, the box bottom plate and at least one box side panel are configured as an integral extrusion molding structure, and the two box end panels are respectively disposed on both sides of the box bottom plate in the first direction;

[0076] The bottom plate, the two side plates, and the two end plates of the box are arranged to form a receiving groove. The box cover is closed on the opening of the receiving groove and is arranged to form the receiving cavity together with the receiving groove.

[0077] Therefore, the bottom plate of the battery box and at least one of the two side plates are made into an integral extrusion molding structure, so that welding work can be omitted between the bottom plate and the side plate.

[0078] In some embodiments, the battery box is provided with a second mounting structure on at least one of the two sides in the third direction, the third direction intersecting the first direction and the second direction;

[0079] The second mounting structure includes a third mounting hole, which extends along the first direction.

[0080] This strengthens the locking constraint on the battery unit, thereby improving the stability of the battery unit installation. Furthermore, the third mounting hole extends along the front-to-back direction, allowing the battery unit to be installed in a push-pull configuration within the mounting cavity of the support frame. This makes it easier for operators to directly use extended tools to reach into the mounting cavity from front to back to assemble or disassemble the battery unit at the third mounting hole. Attached Figure Description

[0081] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0082] Figure 1 This is a schematic diagram of the structure of one embodiment of the vehicle of this application;

[0083] Figure 2 This is a schematic diagram of the battery device of this application being stacked and assembled along the height direction;

[0084] Figure 3 for Figure 2 A schematic diagram showing the connection between the battery device and the support frame;

[0085] Figure 4This is a schematic diagram of the structure of an embodiment of the battery device of this application;

[0086] Figure 5 for Figure 4 Internal schematic diagram of the battery device;

[0087] Figure 6 for Figure 4 A schematic diagram of the battery box without its cover;

[0088] Figure 7 for Figure 6 An exploded structural diagram of the battery box;

[0089] Figure 8 for Figure 7 Exploded structural diagram of the bottom plate of the middle box, the current collection component and the sealing component;

[0090] Figure 9 for Figure 8 A magnified view of point A in the diagram;

[0091] Figure 10 for Figure 6 A cross-sectional schematic diagram of the bottom plate of the middle box, the flow collector and the sealing component;

[0092] Figure 11 for Figure 10 A magnified view of point B in the diagram;

[0093] Figure 12 for Figure 6 A partial structural diagram of the middle box.

[0094] Explanation of icon numbers:

[0095] 100. Battery assembly; 10. Battery box; 10a. First mounting structure; 10a1. First mounting hole; 10a2. First type of mounting hole; 10a21. First mounting hole; 10a3. Second type of mounting hole; 10a31. Second mounting hole; 11. Box body; 111. Box bottom plate; 111a. Heat exchange channel; 111a1. Sub-channel; 1111. First sub-plate; 1113. Second sub-plate; 111b. Extrusion cavity; 1115. Divider plate; 111e. Mounting notch; 113. Box side plate; 115. Box end plate; 11a. Receiving groove; 13. Box cover; 10b. Receiving cavity; 15. Collection 15a. Liquid inlet; 15b. Liquid outlet; 15d. First transition channel; 15e. Second transition channel; 16. Connecting ear; 16a. Positioning hole; 17. Sealing element; 10c. Second mounting structure; 10c1. Third mounting hole; 18. Handle; 19. Mounting beam; 20. Battery cell; 30. Pipe connector; 1000. Vehicle; 200. Controller; 300. Motor; 400. Support frame; 401. First through hole; 402. Second through hole; 403. Mounting cavity; 404. Mounting port; 405. Fixing plate; 500. First locking element; 600. Second locking element.

[0096] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0097] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0098] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0099] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0100] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0101] Battery devices, which are devices used to store electrical energy, are widely used not only in energy storage power systems such as hydropower, thermal power, wind power and solar power plants, but also in electric vehicles such as electric bicycles, electric motorcycles, electric cars, rail trains and other fields.

[0102] The battery device may include a battery case and individual battery cells disposed within the battery case. The battery case may include a casing and a cover that fits over the casing to enclose a cavity for housing the individual battery cells. The individual battery cell is the smallest unit comprising the battery and typically includes a battery casing and an electrode assembly disposed within the battery casing. The electrode assembly is the component in the individual battery cell where the electrochemical reaction actually occurs, and may include a positive electrode, a negative electrode, and a separator located between them, formed by winding or stacking the positive electrode, negative electrode, and separator. The individual battery cell may be a secondary battery or a primary battery; it may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. Furthermore, the individual battery cell may be cylindrical, flat, cuboid, or other shapes. In addition, the battery case may contain multiple individual battery cells, which may be connected in series, in parallel, or in a hybrid connection including both series and parallel connections.

[0103] Furthermore, in the related technology, to improve the utilization of vertical space, at least two battery devices are stacked along the height direction during the arrangement of battery devices. In this case, the installation of adjacent battery devices can easily cause interference. For example, the locking positions of the upper battery device and the lower battery device may correspond, causing the locking components (usually a combination of bolts and nuts) used to secure the upper battery device to occupy the disassembly and assembly space above the locking components used to secure the lower battery device. Consequently, when disassembling the lower battery device, the locking components used to secure the upper battery device may interfere with the disassembly tools (e.g., wrenches or screwdrivers), making it inconvenient for operators to use these tools and requiring the battery devices to be disassembled one by one from the top. Conversely, during installation, the batteries need to be installed one by one from the bottom, making the disassembly, assembly, and maintenance of the battery devices more difficult.

[0104] Therefore, based on the above considerations, in order to solve the problem in related technologies where the locking and fixing structure of the upper battery device interferes with the disassembly and assembly of the lower battery device when battery devices are stacked along the height direction, making the disassembly, assembly, and maintenance of the battery devices difficult, this application proposes a novel battery device. This battery device innovatively has a first mounting structure on one side in a first direction, including at least four first mounting holes extending along a second direction, and the projections of these at least four first mounting holes in the second direction are all staggered. The second direction is the height direction of the battery device. This allows adjacent battery devices to be locked and fixed using staggered first mounting holes when stacked, ensuring that the locking and fixing structure of the upper battery device does not interfere with the disassembly and assembly of the lower battery device. Each battery device can be disassembled and installed individually, improving the convenience of disassembly, assembly, and maintenance of the battery device.

[0105] Furthermore, it should be noted that the battery device proposed in this application can be applied to electrical devices to provide power to them. These electrical devices can be, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, rail trains, ships, and spacecraft. Further, electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., while spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0106] For ease of explanation, the following embodiments use a vehicle as an example of an electrical device according to an embodiment of this application.

[0107] Please refer to Figure 1In one embodiment of this application, the vehicle 1000 can be a rail train, a fuel-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle, etc. The vehicle 1000 has a battery device internally installed, which can be located at the bottom, head, or tail of the vehicle 1000. The battery device can be used to power the vehicle 1000; for example, it can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 controls the battery device to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during startup, navigation, and operation.

[0108] In one embodiment of this application, the battery device 100 can also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000, and can also be used to supply power to electrical appliances on the vehicle 1000.

[0109] Please refer to the reference. Figures 2 to 6 In one embodiment of this application, the battery device 100 includes a battery box 10 and battery cells 20, with the battery cells 20 disposed inside the battery box 10. A first mounting structure 10a is provided on one side of the battery box 10 in a first direction. The first mounting structure 10a includes at least two types of mounting holes 10a1, which extend along a second direction. The second direction is the height direction of the battery box 10 and intersects with the first direction. On a projection plane perpendicular to the second direction, the projections of the various types of mounting holes 10a1 are staggered, so that when at least two battery devices 100 are stacked along the second direction, adjacent battery devices 100 can be installed through the staggered mounting holes 10a1.

[0110] The battery box 10 can be used to form an inner cavity 10b to provide space for the battery cells 20, thereby supporting and protecting the battery cells 20. The battery box 10 can be, as described below, a box body 11 and a cover 13 that overlap each other, forming the cavity 10b. Additionally, the battery box 10 can also be used to install a first mounting structure 10a, enabling the external installation of the battery device 100, i.e., installation on electrical equipment. With the battery device 100 in its normal operating state, the ground is used as a reference. The arrangement direction of the box body 11 and the cover 13 in the battery box 10 is the height direction of the battery box 10, i.e., the second direction. In this case, the first direction can be the front-to-back direction of the battery box 10, or its length direction. Therefore, the first mounting structure 10a can be located on the front side of the battery box 10, so that it faces the operator and facilitates the operator to perform corresponding installation and removal operations on the battery device 100 through the first mounting structure 10a. In addition, the mounting hole 10a1 in the first mounting structure 10a can be used to pass through the first locking member 500 to lock and fix the battery device 100 to the electrical equipment. The first locking member 500 can be a bolt. Therefore, the support frame 400 in the electrical equipment for mounting and supporting the battery device 100 can be provided with a first through hole 401 at the position corresponding to the mounting hole 10a1, so that after the first locking member 500 passes through, a nut can be fitted and locked. Furthermore, the mounting hole 10a1 extends along the second direction, that is, the mounting hole 10a1 is vertically arranged, and its centerline extends along the second direction of the battery box 10, that is, along the height direction. In addition, on the projection plane perpendicular to the second direction, that is, on the horizontal projection plane, the projections of various mounting holes 10a1 are staggered. In other words, the various types of mounting holes 10a1 are laid out horizontally and will not overlap in the second direction, i.e., the height direction. When the battery devices 100 are stacked along the height direction, different types of mounting holes 10a1 can be used in any two adjacent battery devices 100, allowing them to be installed through staggered mounting holes 10a1. This achieves a staggered arrangement of the locking structures (i.e., the first locking member 500 as described above) of the adjacent battery devices 100. The first mounting structure 10a includes at least two types of mounting holes 10a1, including cases where the first mounting structure 10a includes only two types of mounting holes 10a1, or cases where the first mounting structure 10a includes three or more types of mounting holes 10a1. Furthermore, the shape and size of the mounting holes 10a1 in different types can be the same or different. The same type of hanging hole 10a1 can include one hanging hole 10a1, or it can include two hanging holes 10a1, or it can include more hanging holes 10a1.In addition, the shape of the hanging hole 10a1 can be circular, or it can be oblong or elliptical, etc. This application does not limit the shape of the hanging hole 10a1.

[0111] The battery cell 20 can be used to store electrical energy. The number of battery cells 20 can be one, or multiple. Multiple battery cells 20 can be connected in series, parallel, or a combination thereof; a combination means that multiple battery cells 20 are connected in both series and parallel. Therefore, the battery device 100 may also include other structures, such as a busbar, for establishing an electrical connection between at least two battery cells 20. When there are multiple battery cells 20, at least some of the battery cells 20 can be stacked in one direction to form a battery pack. The battery device 100 may include only one battery pack, or it may include two or more battery packs, in which case the battery packs can be arranged side-by-side. Furthermore, the battery cell 20 can be a secondary battery or a primary battery. A secondary battery is a battery that can be recharged after discharge to activate the active materials and continue to be used. Further, the battery cell 20 can be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. Additionally, the battery cell 20 can be cylindrical, flat, cuboid, or other shapes.

[0112] The battery device 100 of this application has a first mounting structure 10a with at least two types of mounting holes 10a1 on one side of the outer side of the battery box 10 in a first direction. The projections of each type of mounting hole 10a1 on a projection plane perpendicular to a second direction are staggered, and the second direction is the height direction of the battery box 10. This allows any two adjacent battery devices 100 to be installed using different types of mounting holes 10a1 when at least two battery devices 100 are stacked along the height direction, enabling them to be installed through the staggered mounting holes 10a1. At this time, the locking structure passes through the mounting holes 10a1 to lock and fix the battery device 100. Therefore, the locking structure of the upper battery device 100 does not obstruct the disassembly and assembly operation space above the locking structure of the lower battery device 100. This allows operators to conveniently place disassembly and assembly tools above the locking structure of the lower battery device 100 to disassemble and assemble the lower battery device 100, improving the convenience of disassembly, assembly, and maintenance of the battery device 100. Furthermore, the side where the first mounting structure 10a is located can be the side where the battery device 100 faces the operator, further facilitating the operator's disassembly and assembly operations on the locking structure passing through the first mounting structure 10a using disassembly and assembly tools, further enhancing the convenience of disassembly, assembly, and maintenance of the battery device 100.

[0113] Please refer to the reference. Figure 3 and Figure 6In one embodiment of this application, at least two types of hanging holes 10a1 are arranged along a third direction, which intersects with the first and second directions.

[0114] When the first direction is the front-back direction of the battery box 10, or the length direction, the third direction can be the left-right direction of the battery box 10, or the width direction.

[0115] In this embodiment, at least two types of hanging holes 10a1 are arranged along a third direction, so that the space on the front side of the battery box 10 in the width direction can be fully utilized. When the operator is facing the front of the battery box 10 for assembly or disassembly, each hanging hole 10a1 can be relatively close to the operator, thus allowing the locking structure (i.e., the first locking member 500) passing through the hanging holes 10a1 to also be relatively close to the operator, facilitating the operator's assembly and disassembly of each locking structure. At the same time, this arrangement of the hanging holes 10a1 also reduces the front-to-back dimensions of the battery box 10, improving the overall compactness of the battery box 10.

[0116] Please refer to the reference. Figure 6 , Figure 10 as well as Figure 11 At least two types of mounting holes 10a1 include a first type of mounting hole 10a2 and a second type of mounting hole 10a3. The first type of mounting hole 10a2 includes at least two first mounting holes 10a21, and the second type of mounting hole 10a3 includes at least two second mounting holes 10a31.

[0117] In this embodiment, since each type of hanging hole 10a1 includes at least two hanging holes 10a1, each battery device 100 can be locked and fixed by at least two hanging holes 10a1, which helps to improve the stability of the battery device 100 when installed on the electrical equipment.

[0118] Please refer to the reference. Figure 3 , Figure 6 , Figure 10 as well as Figure 11 In one embodiment of this application, the first type of mounting hole 10a2 includes two first mounting holes 10a21, which are distributed on both sides of the center line of the battery box 10; the second type of mounting hole 10a3 includes two second mounting holes 10a31, which are distributed on both sides of the center line of the battery box 10 and located between the two first mounting holes 10a21.

[0119] The centerline of the battery box 10 can be the centerline of the battery box 10 in a first direction. In this case, one of the two first mounting holes 10a21 is located to the left of the centerline of the battery box 10, and the other is located to the right of the centerline of the battery box 10. Similarly, one of the two second mounting holes 10a31 is located to the left of the centerline of the battery box 10, and the other is located to the right of the centerline of the battery box 10, and the two second mounting holes 10a31 are located between the two first mounting holes 10a21.

[0120] In this embodiment, the two first mounting holes 10a21 and the two second mounting holes 10a31 are both distributed on both sides of the center line of the battery box 10. This ensures that each battery device 100 is evenly stressed on both sides, whether it is installed using the two first mounting holes 10a21 or the two second mounting holes 10a31, thereby improving the stability of the battery device 100 on the electrical equipment. For example, one of two adjacent battery devices 100 can be secured using the first mounting holes 10a21 at both ends, while the other can be secured using the two second mounting holes 10a31 distributed in the middle. Figure 3 As shown. Moreover, in some embodiments, the two first mounting holes 10a21 can be set about the center line of the battery box 10, and the two second mounting holes 10a31 can also be set about the center line of the battery box 10, so as to further improve the uniformity of the subsequent locking force on the battery device 100.

[0121] Meanwhile, this arrangement also allows the mounting holes 10a1 to be distributed more regularly in the third direction, which in turn improves the ease of manufacturing the battery box 10. Correspondingly, it also allows the first through holes 401 on the support frame 400 used to install and support the battery in the electrical equipment to be linearly distributed along the third direction, improving the regularity of the distribution of the first through holes 401, and thus improving the ease of manufacturing the support frame 400.

[0122] Of course, this application is not limited to this. In some embodiments, it is also possible to set the first type of hanging hole 10a2 to the left of the center line of the battery box 10 and the second type of hanging hole 10a3 to the right of the center line of the battery box 10.

[0123] Please refer to the reference. Figures 4 to 6 In one embodiment of this application, the battery box 10 includes a box body 11 and a box cover 13. The box cover 13 covers one side of the box body 11 in a second direction and is configured to enclose the box body 11 to form a receiving cavity 10b. The battery cell 20 is disposed in the receiving cavity 10b, and the hanging hole 10a1 is disposed on the side of the box body 11 away from the box cover 13.

[0124] Since the second direction is the height direction of the battery box 10, the cover 13 can be closed onto the upper end of the box body 11. At this time, the hanging hole 10a1 is located on the side of the box body 11 away from the cover 13, that is, the hanging hole 10a1 is located at the lower end of the box body 11.

[0125] In this embodiment, the hanging hole 10a1 is located at the lower end of the housing 11, so that when the battery device 100 is installed on the support frame 400 of the electrical equipment, the hanging hole 10a1 can be closer to the wall surface of the support frame 400 that supports the battery device 100. This facilitates the connection between the battery device 100 and the support frame 400 by inserting a shorter locking structure (i.e., the first locking member 500). At the same time, this arrangement also ensures that when the battery device 100 is installed in the mounting cavity 403 of the support frame 400 in a push-pull manner as described below, the part of the support frame 400 connected to the hanging hole 10a1 can be flush with the bottom surface of the battery box 10, thus not affecting the push-pull installation of the battery device 100.

[0126] Please refer to the reference. Figures 6 to 11 In one embodiment of this application, the housing 11 includes a bottom plate 111, the bottom plate 111 and the cover 13 are arranged at relative intervals, and the bottom plate 111 is provided with a heat exchange channel 111a inside; the battery box 10 also includes a current collector 15, the current collector 15 is provided on one side of the bottom plate 111 in a first direction, the current collector 15 is provided with a liquid inlet 15a and a liquid outlet 15b, the liquid inlet 15a and the liquid outlet 15b are connected to the heat exchange channel 111a; some hanging holes 10a1 are provided on the current collector 15, and other hanging holes 10a1 are provided on the bottom plate 111.

[0127] The heat exchange channel 111a can be connected to an external circulation pipeline to allow the entry of a heat exchange medium (e.g., water or oil) to achieve heat exchange and heat dissipation for the battery cells 20 located inside the battery box 10. In some embodiments, it can also be used to heat the battery cells 20. The heat exchange channel 111a is located inside the bottom plate 111 of the box. That is, in a cross-section perpendicular to the extension direction of the heat exchange channel 111a, the cross-section of the heat exchange channel 111a is a closed ring. The cross-section of the heat exchange channel 111a can be any shape, such as circular, rectangular, racetrack-shaped, or elliptical. Furthermore, the heat exchange channel 111a can be, as described below, comprise multiple sub-channels 111a1 arranged side-by-side in three directions. Of course, the heat exchange channel 111a can also meander back and forth in a third direction; this application does not limit the shape of the channel path of the heat exchange channel 111a. The manifold 15 serves as a transitional connection between the heat exchange channel 111a located within the bottom plate 111 and the external circulation pipeline. Specifically, the inlet port 15a and outlet port 15b on the manifold 15 can be connected to the inlet and outlet pipes in the external circulation pipeline, respectively. The inlet port 15a can be directly connected to the inlet pipe in the external circulation pipeline, or the two can be detachably connected via a pipe connector 30. Similarly, the outlet port 15b can be directly connected to the outlet pipe in the external circulation pipeline, or the two can be detachably connected via a pipe connector 30. Furthermore, the connection between the manifold 15 and the bottom plate 111 can be welded to improve connection stability and the sealing effect of the heat exchange channel 111a. Of course, adhesive bonding or other connection methods can also be used; this application does not limit the connection method of the manifold 15.

[0128] In this embodiment, the heat exchange channel 111a is integrated into the bottom plate 111, eliminating the need for a cold plate. Furthermore, some hanging holes 10a1 are integrated into the bottom plate 111, and others are integrated into the current collector 15. For example, a first type of hanging hole 10a2 is located on the bottom plate 111, and a second type of hanging hole 10a3 is located on the current collector 15, further eliminating the need for additional hanging holes 10a1. This simplifies the number of components in the battery box 10, thereby reducing the amount of welding required for the battery device 100 and minimizing defects such as structural deformation or cracks caused by welding stress due to improper welding.

[0129] Please refer to the reference. Figures 6 to 11 In one embodiment of this application, the bottom plate 111 of the box is provided with an installation notch 111e on one side in the first direction, the current collector 15 is disposed in the installation notch 111e, and the first type of hanging holes 10a2 are distributed on both sides of the installation notch 111e in the second direction.

[0130] The mounting notch 111e can be formed by three walls, two of which are arranged opposite each other in the third direction, and the third wall is connected to the two opposite walls.

[0131] In this embodiment, by adapting the current collector 15 to the mounting notch 111e, the compactness of the distribution between the current collector 15 and the bottom plate 111 can be improved, thereby reducing the overall volume of the battery box 10 and improving the convenience of its subsequent installation and arrangement in a limited space. Simultaneously, the contact area between the current collector 15 and the bottom plate 111 can be increased, which in turn improves the convenience and stability of their connection, ensuring that the current collector 15 has sufficient strength to meet the stable external installation requirements of the battery device 100. Furthermore, the first type of hanging holes 10a2 located on the bottom plate 111 are distributed on both sides of the mounting notch 111e in the second direction, which facilitates the collinear arrangement of the center points of each hanging hole 10a1, improving the regularity of the distribution of each hanging hole 10a1, thereby improving the convenience of processing and shaping the battery box 10 and the uniformity of the force applied during the subsequent mounting and installation of the battery device 100.

[0132] Please refer to the reference. Figures 7 to 11 In one embodiment of this application, the bottom plate 111 is configured as an integral extrusion molding structure extruded along a first direction. The bottom plate 111 has an extrusion cavity 111b, which is configured as a heat exchange channel 111a. The first type of hanging hole 10a2 is isolated from the heat exchange channel 111a.

[0133] An integral extrusion molding structure is a structure that is prepared using an integral extrusion molding process.

[0134] In this embodiment, the bottom plate 111 is configured as an integral extrusion molding structure, which facilitates the direct formation of the heat exchange channel 111a through the extrusion cavity 111b, thereby improving the ease of processing and forming the heat exchange channel 111a. Simultaneously, using integral extrusion molding to form the heat exchange channel 111a within the bottom plate 111 through the extrusion cavity 111b also ensures that the heat exchange channel 111a has a high sealing effect.

[0135] Please refer to the reference. Figures 7 to 11 In one embodiment of this application, the extrusion cavity 111b is open on both sides in a first direction. The extrusion cavity 111b is provided with a plurality of partition plates 1115 arranged side by side along a third direction to divide the extrusion cavity 111b into a plurality of sub-channels 111a1. The plurality of sub-channels 111a1 are connected to form a heat exchange channel 111a. The current collector 15 covers the opening on one side of the bottom plate 111. The battery box 10 also includes a sealing member 17, which covers the opening on the other side of the bottom plate 111.

[0136] The bottom plate 111 has an extrusion cavity 111b, which is open at both ends, thus forming a hollow structure with open ends in the first direction. The manifold 15 and the sealing element 17 can be used to cover the openings at both ends of the bottom plate 111 to improve the sealing of the heat exchange channel 111a. In this case, each partition plate 1115 within the bottom plate 111 can be partially spaced from the manifold 15 to achieve communication between two adjacent sub-channels 111a1 at that end. Other portions can contact the manifold 15 to achieve isolation between two adjacent sub-channels 111a1 at that end. Similarly, each partition plate 1115 within the bottom plate 111 can be partially spaced from the sealing element 17 to achieve communication between two adjacent sub-channels 111a1 at that end. Other portions can contact the sealing element 17 to achieve isolation between two adjacent sub-channels 111a1 at that end. Furthermore, the connection between the sealing element 17 and the bottom plate 111 can be welded to improve the stability of the connection and the sealing effect of the heat exchange channel 111a. Alternatively, it can be bonded or used in other ways; this application does not limit the connection method of the sealing element 17. Additionally, the liquid inlet 15a can be connected to two adjacent sub-channels 111a1 in the heat exchange channel 111a, or it can be connected to only one sub-channel 111a1. Similarly, the liquid outlet 15b can be connected to two adjacent sub-channels 111a1 in the heat exchange channel 111a, or it can be connected to only one sub-channel 111a1. Moreover, the liquid inlet 15a and the sub-channels 111a1 in the heat exchange channel 111a can be indirectly connected via the first transition channel 15d, as described below, or they can be directly connected. Similarly, the liquid outlet 15b and the sub-channel 111a1 in the heat exchange channel 111a can be indirectly connected through the second transition channel 15e as described below, or they can be directly connected.

[0137] In this embodiment, the bottom plate 111 is configured as a hollow structure with openings at both ends in the first direction. Simultaneously, the internal partition plate 1115 divides the heat exchange channels 111a into multiple sub-channels 111a1 arranged side-by-side along the second direction. This simplifies the structure of the bottom plate 111 and facilitates the formation of the heat exchange channels 111a within the bottom plate 111 using an integral extrusion molding process. Furthermore, a manifold 15 can seal one end of each of the multiple sub-channels 111a1 and provide transitional connection between these sub-channels 111a1 and the external circulation pipeline, enabling a single component to perform multiple functions and simplifying the number of components in the battery device 100. Similarly, a sealing component 17 can seal the other end of each of the multiple sub-channels 111a1, further simplifying the number of components in the battery device 100 by sealing the heat exchange channels 111a at that end.

[0138] Please refer to the reference. Figure 6 , Figure 10 as well as Figure 11 In one embodiment of this application, the flow collector 15 is provided with a first transition flow channel 15d, the liquid inlet 15a is connected to the first transition flow channel 15d, and two adjacent sub-flow channels 111a1 correspond to the first transition flow channel 15d and are connected in parallel.

[0139] The first transition channel 15d can extend along a first direction, and is closed at one end and open at the other end in the first direction, so as to communicate with two adjacent sub-channels 111a1 through the opening. At this time, the partition plate 1115 located between the two adjacent sub-channels 111a1 can be spaced apart from the flow collector 15 so as to realize the communication between the opening of the first transition channel 15d and the two adjacent sub-channels 111a1.

[0140] In this embodiment, a first transition channel 15d is provided to connect it in parallel with two adjacent sub-channels 111a1, so that after passing through the first transition channel 15d, the heat exchange medium can enter the two adjacent sub-channels 111a1 respectively, which helps to reduce the flow resistance of the heat exchange medium when entering the heat exchange channel 111a1 and improve the flow effect of the heat exchange medium.

[0141] Please refer to the reference. Figure 6 , Figure 10 as well as Figure 11 In one embodiment of this application, the flow collector 15 is provided with a second transition flow channel 15e, the liquid outlet 15b is connected to the second transition flow channel 15e, and two adjacent sub-flow channels 111a1 correspond to the second transition flow channel 15e and are connected in parallel.

[0142] The second transition channel 15e can also extend along the first direction, with one end closed and the other end open, so as to communicate with the two adjacent sub-channels 111a1 through the opening. In this case, the partition plate 1115 located between the two adjacent sub-channels 111a1 can be spaced apart from the flow collector 15 so as to realize the communication between the opening of the second transition channel 15e and the two adjacent sub-channels 111a1.

[0143] In this embodiment, a second transition channel 15e is provided to connect with the two adjacent sub-channels 111a1 in parallel. This allows the heat exchange medium to enter the second transition channel 15e through the two parallel sub-channels 111a1 at the end. This achieves symmetry with the flow path of the heat exchange medium entering the first two parallel sub-channels 111a1 through the first transition channel 15d. This improves the uniformity of the flow velocity and flow rate of the heat exchange medium at the inlet and outlet of the heat exchange channel 111a, thereby enhancing the overall stability of the heat exchange medium flow.

[0144] In one embodiment of this application, the manifold 15 may also be an integral extrusion molding structure, so as to directly extrude the first transition channel 15d and the second transition channel 15e.

[0145] Please refer to Figure 10 In one embodiment of this application, some of the multiple sub-channels 111a1 are connected in series, and some of the sub-channels 111a1 are connected in parallel.

[0146] In this embodiment, the multiple sub-channels 111a1 are configured to include both series and parallel connections, which makes the connections between the multiple sub-channels 111a1 more diverse. This allows for targeted use of appropriate connection methods at different locations according to requirements, so as to adjust the flow rate and volume of the heat exchange medium at that location.

[0147] Please refer to the reference. Figure 6 and Figure 7 In one embodiment of this application, the box body 11 further includes two box side plates 113 and two box end plates 115. The two box side plates 113 are respectively disposed on both sides of the box bottom plate 111 in a third direction. The box bottom plate 111 and at least one box side plate 113 are configured as an integral extrusion molding structure. The two box end plates 115 are respectively disposed on both sides of the box bottom plate 111 in a first direction. The box bottom plate 111, the two box side plates 113 and the two box end plates 115 are configured to form a receiving groove 11a. The box cover 13 covers the opening of the receiving groove 11a and is configured to form a receiving cavity 10b with the receiving groove 11a.

[0148] The bottom plate 111 and at least one side plate 113 are integrally extruded structures, including both integral extrusion structures. Alternatively, the bottom plate 111 itself can be a single integral structure. This also includes cases where the bottom plate 111 is split into a first sub-plate 1111 and a second sub-plate 1113, as described below. In this case, the first sub-plate 1111 and the second sub-plate 1113, along with their corresponding side plates 113, form an integrally extruded structure. Furthermore, the end plate 115 may be connected only to the bottom plate 111, only to the side plates 113, only to the manifold 15 or the sealing element 17 described above, or to at least two of the bottom plate 111, the side plate 113, the manifold 15, and the sealing element 17. Furthermore, the connection of the end plate 115 can be achieved by welding to improve the stability of the connection and the sealing effect of the accommodating cavity 10b. Of course, adhesive bonding or other connection methods can also be used; this application does not limit the connection method of the end plate 115.

[0149] In this embodiment, the bottom plate 111 and the side plate 113 are further configured as an integral extrusion molding structure, so that the bottom plate 111 with heat exchange channel 111a can be formed by integral extrusion molding, while the side plate 113 can be formed at the same time, thereby further eliminating the welding work between the bottom plate 111 and the side plate 113.

[0150] Please refer to the reference. Figure 7 and Figure 8 In one embodiment of this application, the bottom plate 111 includes a first sub-plate 1111 and a second sub-plate 1113, which are arranged along a third direction; the first sub-plate 1111 and one of the two side plates 113 are integrally extruded and molded, and the second sub-plate 1113 and one of the two side plates 113 are integrally extruded and molded.

[0151] The first sub-plate 1111 and the second sub-plate 1113, i.e., the bottom plate 111, are divided into two parts between the two side plates 113. In this case, heat exchange channels 111a can be distributed on the first sub-plate 1111 and the second sub-plate 1113 to increase the coverage area of ​​the heat exchange channels 111a and improve the cooling effect on the battery cells 20 located inside the battery box 10. Of course, the heat exchange channels 111a can also be provided only on one of the first sub-plate 1111 and the second sub-plate 1113. Additionally, the mounting notches 111e in the bottom plate 111 can also be distributed on both the first sub-plate 1111 and the second sub-plate 1113.

[0152] In this embodiment, the bottom plate 111 is split into a first sub-plate 1111 and a second sub-plate 1113, such that the first sub-plate 1111 and one side plate 113 can form a component, and the second sub-plate 1113 and another side plate 113 can form a component. At this point, the two components are relatively small in size, allowing for integral extrusion molding using a smaller and simpler mold, thus improving the ease of mold manufacturing.

[0153] Please refer to Figure 6 In one embodiment of this application, the battery box 10 is further provided with a handle 18. The handle 18 and the first mounting structure 10a are located on the same side of the battery box 10, and on the projection plane perpendicular to the second direction, the projection of the handle 18 and the projection of the first mounting structure 10a are misaligned.

[0154] The handle 18 provides a gripping position, allowing the operator to apply force to the battery device 100, thus improving the convenience of placing and removing the battery device 100. The handle 18 may include a gripping rod and two connecting rods. The gripping rod extends in a third direction, and the two connecting rods are connected to both ends of the gripping rod and extend towards the front of the battery box 10 for connection. Alternatively, the handle 18 may be a protruding post extending in a first direction and protruding from the front of the battery box 10. Furthermore, the handle 18 may be integrated into the current collector 15, facilitating the placement of other components on the end plate 115 located on the front of the battery box 10. Alternatively, the handle 18 may be mounted on the end plate 115. The number of handles 18 can be one or two.

[0155] In this embodiment, a handle 18 is provided on the front side of the battery box 10, which allows the operator to apply force to the battery device 100 to complete the loading and unloading of the battery device on the electrical equipment. The handle 18 and the projection of the first mounting structure 10a in the second direction are staggered, which ensures that the arrangement of the handle 18 will not affect the locking and fixing of the battery device 100.

[0156] Please refer to the reference. Figure 2 , Figure 4 , Figure 6 as well as Figure 12 In one embodiment of this application, the battery box 10 is provided with a second mounting structure 10c on at least one of the two sides in the third direction, and the third direction intersects the first direction and the second direction; the second mounting structure 10c includes a third mounting hole 10c1, which extends along the first direction.

[0157] The third mounting hole 10c1 can be used to pass through the second locking member 600 to lock and fix the battery device 100 to the electrical equipment. The second locking member 600 can be a bolt. Therefore, the support frame 400 in the electrical equipment for mounting and supporting the battery device 100 can have a second through hole 402 at the position corresponding to the third mounting hole 10c1, so that after the second locking member 600 passes through, a nut can be fitted and locked. Furthermore, the third mounting hole 10c1 extends along the first direction, that is, it is horizontally positioned, with its center line extending along the first direction of the battery box 10, i.e., along the front-to-back direction. Additionally, the shape of the third mounting hole 10c1 can be circular, or it can be oblong, elliptical, etc.; this application does not limit the shape of the third mounting hole 10c1. In addition, there may be only one third mounting hole 10c1 on one side panel 113 of the battery box 10, or there may be two or more third mounting holes 10c1. Of course, there may also be third mounting holes 10c1 on both side panels 113 of the battery box 10.

[0158] In this embodiment, a third mounting hole 10c1 is further provided on the side plate 113 of the battery box 10. This allows the battery device 100 to be secured not only by the first locking member 500 passing through the mounting hole 10a1 from top to bottom, but also by the second locking member 600 passing through the third mounting hole 10c1 from front to back. This enhances the locking constraint on the battery device 100 and improves the stability of the battery device 100 installation. Moreover, the third mounting hole 10c1 extends in the front-to-back direction, making it easier for operators to directly use extended disassembly and assembly tools to insert from front to back into the mounting cavity 403 of the mounting cavity 403 through the mounting opening 404 to disassemble or assemble the battery device 100 at the third mounting hole 10c1.

[0159] Please refer to the reference. Figures 8 to 11 In one embodiment of this application, the size of the hanging hole 10a1 in the first direction is larger than the size in the third direction.

[0160] In this embodiment, the size of the hanging hole 10a1 in the first direction is set to be larger than that in the third direction, so that when the first locking member 500 passing through the hanging hole 10a1 is not tightened, the battery box 10 can still be finely adjusted in the first direction so as to be accurately installed in the first direction.

[0161] Please refer to the reference. Figure 6 and Figure 12 In one embodiment of this application, the third mounting hole 10c1 has a larger dimension in the third direction than in the second direction.

[0162] In this embodiment, the size of the third mounting hole 10c1 in the third direction is set to be larger than that in the second direction, so that when the second locking member 600 passing through the third mounting hole 10c1 is not tightened, the battery box 10 can still be finely adjusted in the third direction so as to be accurately centered in the third direction.

[0163] Please refer to Figure 6 In one embodiment of this application, the battery box 10 is provided with a connecting ear 16, and a third mounting hole 10c1 is provided on the connecting ear 16.

[0164] In this embodiment, the connecting ear 16 can provide a better setting position so as to set a third mounting hole 10c1 extending along the first direction.

[0165] Please refer to Figure 6 In one embodiment of this application, the connecting ear 16 is provided with a positioning hole 16a, which is arranged side by side with the third mounting hole 10c1.

[0166] The positioning hole 16a can be used for positioning engagement with a positioning mating part on the support frame 400 of the electrical equipment. This positioning mating part can be a positioning post provided on the support frame 400, which is inserted into the positioning hole 16a to achieve positioning engagement. Alternatively, it can be an additional positioning pin. In this case, the support frame 400 can also be provided with a mating hole corresponding to the positioning hole 16a, and the positioning engagement can be achieved by the positioning pin passing through the positioning hole 16a and the mating hole.

[0167] In this embodiment, the positioning hole 16a can be used to position the battery device 100 on the support frame 400 of the electrical equipment, so that the hanging hole 10a1 on the battery device 100 can be quickly aligned with the first through hole 401 on the support member, and the third mounting hole 10c1 on the battery device 100 can be aligned with the second through hole 402 on the support member, thereby improving the installation efficiency of the battery device 100.

[0168] Please refer to the reference. Figures 6 to 7 In one embodiment of this application, the battery box 10 may further include two mounting beams 19, which may be disposed inside the box body 11 and located at both ends of the bottom plate 111 in a first direction, so that the two ends of the battery pack formed by stacking multiple battery cells 20 can be respectively connected to the two mounting beams 19, thereby improving the stability of the battery cells 20 installed in the battery box 10.

[0169] Please refer to the reference. Figures 2 to 12In one embodiment of this application, the battery device 100 includes a battery case 10 and battery cells 20, with the battery cells 20 disposed inside the battery case 10. A first mounting structure 10a is provided on one side of the battery case 10 in a first direction. The first mounting structure 10a includes at least two types of mounting holes 10a1, which extend along a second direction, the height direction of the battery case 10, and intersect with the first direction. On a projection plane perpendicular to the second direction, the projections of the various types of mounting holes 10a1 are staggered, so that when at least two battery devices 100 are stacked along the second direction, adjacent battery devices 100 can be installed through the staggered mounting holes 10a1. The at least two types of mounting holes 10a1 are arranged along a third direction, which intersects the first and second directions. At least two types of mounting holes 10a1 include a first type of mounting hole 10a2 and a second type of mounting hole 10a3. The first type of mounting hole 10a2 includes two first mounting holes 10a21, and the second type of mounting hole 10a3 includes two second mounting holes 10a31. The two first mounting holes 10a21 are distributed on both sides of the center line of the battery box 10, and the two second mounting holes 10a31 are distributed on both sides of the center line of the battery box 10 and located between the two first mounting holes 10a21. The battery box 10 includes a box body 11 and a box cover 13; the box cover 13 covers one side of the box body 11 in a second direction and is configured with the box body 11 to form a receiving cavity 10b. The battery cell 20 is disposed in the receiving cavity 10b, and the mounting holes 10a1 are located on the side of the box body 11 away from the box cover 13. The housing 11 includes a bottom plate 111, which is arranged at a relative interval with the cover 13. The bottom plate 111 has a heat exchange channel 111a inside. The battery box 10 also includes a current collector 15, which is located on one side of the bottom plate 111 in a first direction. The current collector 15 has an inlet port 15a and an outlet port 15b, which are connected to the heat exchange channel 111a. At least two types of hanging holes 10a1 include a first type of hanging hole 10a2 and a second type of hanging hole 10a3. The first type of hanging hole 10a2 is located on the bottom plate 111, and the second type of hanging hole 10a3 is located on the current collector 15. The bottom plate 111 is configured as an integrally extruded structure extruded along a first direction. The bottom plate 111 has an extrusion cavity 111b, which is configured as a heat exchange channel 111a. The first type of hanging hole 10a2 is isolated from the heat exchange channel 111a. The box body 11 also includes two side plates 113 and two end plates 115. The two side plates 113 are respectively located on both sides of the bottom plate 111 in a third direction. The bottom plate 111 and at least one side plate 113 are configured as an integrally extruded structure. The two end plates 115 are respectively located on both sides of the bottom plate 111 in the first direction. The bottom plate 111, the two side plates 113, and the two end plates 115 are configured to form a receiving groove 11a. The box cover 13 covers the opening of the receiving groove 11a and is configured to form a receiving cavity 10b with the receiving groove 11a.The battery box 10 has a second mounting structure 10c on at least one of the two sides in the third direction, and the third direction intersects the first direction and the second direction; the second mounting structure 10c includes a third mounting hole 10c1, which extends along the first direction.

[0170] Please refer to the reference. Figures 2 to 4 , Figure 6 as well as Figure 12 This application also proposes an electrical device, which includes a support frame 400, a battery device 100, and a first locking member 500. The specific structure of the battery device 100 is as described in the above embodiments. Since this electrical device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The first locking member 500 passes through the hanging hole 10a1 and the first through hole 401 on the support frame 400 corresponding to the hanging hole 10a1, so as to connect the battery device 100 to the support frame 400. In any two adjacent battery devices 100, the hanging hole 10a1 through which the first locking member 500 for connecting one battery device 100 passes and the hanging hole 10a1 through which the first locking member 500 for connecting the other battery device 100 pass are misaligned in projection on the projection plane perpendicular to the second direction. The first locking member 500 for connecting one battery device 100 is offset from the first locking member 500 for connecting another battery device 100 in the second direction, so that when either battery device 100 is being installed or removed, the first locking member 500 of the upper battery device 100 will not affect the installation or removal of the battery device 100 to be installed or removed. Furthermore, the support frame 400 can be formed by multiple columns or multiple plates. Additionally, when the battery device 100 is provided with a second mounting structure 10c as described above, the electrical equipment may also include a second locking member 600, which passes through a third mounting hole 10c1 in the second mounting structure 10c and a second through hole 402 on the support frame 400 corresponding to the third mounting hole 10c1, connecting the battery device 100 to the support frame 400.

[0171] Please refer to Figure 2 In one embodiment of this application, the support frame 400 is provided with at least two mounting cavities 403, the at least two mounting cavities 403 are arranged along the second direction, and each mounting cavity 403 has a mounting opening 404 at one end in the first direction; each battery device 100 is installed in a mounting cavity 403, and a hanging hole 10a1 is provided in the battery box 10 on the side facing the mounting opening 404.

[0172] When the mounting hole 10a1 is located on the front side of the battery box 10 as described above, the mounting opening 404 of the mounting cavity 403 can also face forward. In this case, the first through hole 401 on the support frame 400 corresponding to the mounting hole 10a1 can be located on the bottom wall of the mounting cavity 403, close to the mounting opening 404. The second through hole 402 on the support frame 400 corresponding to the mounting hole 10a1 can be further fitted with a fixing plate 405 stacked with the connecting lug 16 of the battery device 100 within the mounting cavity 403.

[0173] In this embodiment, by providing a mounting port 404 facing forward on the support frame 400, that is, when the operator is facing the battery device 100, the mounting port 404 can face the operator, thereby facilitating the operator to install and remove the battery device 100 by pushing and pulling, and further improving the convenience of its installation and removal.

[0174] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A battery device, characterized by, include: A battery box, wherein a first mounting structure is provided on one side of the outer side in a first direction; and A battery cell, wherein the battery cell is disposed inside the battery box; The first mounting structure includes at least two types of mounting holes, which extend along a second direction, which is the height direction of the battery box and intersects with the first direction. On a projection plane perpendicular to the second direction, the projections of various types of hanging holes are staggered so that when at least two battery devices are stacked along the second direction, adjacent battery devices can be installed through the staggered hanging holes.

2. The battery device as claimed in claim 1, characterized in that, The at least two types of hanging holes are arranged along a third direction, which intersects the first direction and the second direction.

3. The battery device as claimed in claim 2, characterized in that, The at least two types of mounting holes include a first type of mounting hole and a second type of mounting hole. The first type of mounting hole includes at least two first mounting holes, and the second type of mounting hole includes at least two second mounting holes.

4. The battery device as claimed in claim 3, characterized in that, The first type of mounting hole includes two first mounting holes, which are distributed on both sides of the center line of the battery box; The second type of mounting hole includes two second mounting holes, which are distributed on both sides of the center line of the battery box and located between the two first mounting holes.

5. The battery device as claimed in claim 1, characterized in that, The battery box includes: Box; and A lid is provided, which covers one side of the box body in the second direction and surrounds the box body to form a receiving cavity. The battery cell is disposed in the receiving cavity, and the hanging hole is located on the side of the box body away from the lid.

6. The battery device as claimed in claim 5, characterized in that, The box body includes a bottom plate, the bottom plate and the box cover are arranged at relative intervals, and the bottom plate is provided with heat exchange channels inside; The battery box also includes a current collector, which is located on one side of the bottom plate of the box in the first direction. The current collector is provided with a liquid inlet and a liquid outlet, which are connected to the heat exchange channel. The at least two types of hanging holes include a first type of hanging hole and a second type of hanging hole, wherein the first type of hanging hole is provided on the bottom plate of the box and the second type of hanging hole is provided on the collector.

7. The battery device as claimed in claim 6, characterized in that, The bottom plate of the box is provided with an installation notch on one side in the first direction, the current collector is provided in the installation notch, and the first type of hanging holes are distributed on both sides of the installation notch in the second direction; And / or, the manifold is an integrally extruded structure configured as a first transition channel and a second transition channel; the first transition channel connects the liquid inlet and the heat exchange channel, and the second transition channel connects the liquid outlet and the heat exchange channel.

8. The battery device as claimed in claim 6, characterized in that, The bottom plate of the box is configured as an integral extrusion molding structure extruded along the first direction. The bottom plate of the box has an extrusion cavity, which is configured as the heat exchange channel. The first type of hanging hole is isolated from the heat exchange channel.

9. The battery device as claimed in claim 8, characterized in that, The box body also includes two side panels and two end panels. The two side panels are respectively located on both sides of the bottom panel in the third direction. The bottom panel and at least one side panel are configured as an integral extrusion molding structure. The two end panels are respectively located on both sides of the bottom panel in the first direction. The third direction intersects the first direction and the second direction. The bottom plate, the two side plates, and the two end plates of the box are arranged to form a receiving groove. The box cover is closed on the opening of the receiving groove and is arranged to form the receiving cavity together with the receiving groove.

10. The battery device as claimed in claim 8, characterized in that, The extrusion cavity is open on both sides in the first direction. The extrusion cavity is provided with a plurality of partition plates arranged side by side along a third direction to divide the extrusion cavity into a plurality of sub-channels. The plurality of sub-channels are connected to form the heat exchange channel. The third direction intersects the first direction and the second direction. The current collector covers an opening on one side of the bottom plate of the battery box, and the battery box also includes a sealing member that covers an opening on the other side of the bottom plate of the battery box.

11. The battery device according to any one of claims 1 to 10, characterized in that, The battery box is also provided with a handle. The handle and the first mounting structure are located on the same side of the battery box, and on the projection plane perpendicular to the second direction, the projection of the handle and the projection of the first mounting structure are misaligned.

12. The battery device according to any one of claims 1 to 10, characterized in that, The battery box has a second mounting structure on at least one of its two sides in a third direction, the third direction intersecting the first direction and the second direction; The second mounting structure includes a third mounting hole, which extends along the first direction.

13. The battery device as claimed in claim 12, characterized in that, The size of the hanging hole in the first direction is greater than the size in the third direction.

14. The battery device as claimed in claim 12, characterized in that, The third mounting hole is larger in the third direction than in the second direction.

15. The battery device as claimed in claim 12, characterized in that, The battery box is provided with a connecting lug, and the third mounting hole is located on the connecting lug.

16. The battery device as claimed in claim 15, characterized in that, The connecting ear is provided with a positioning hole, which is arranged side by side with the third mounting hole.

17. An electrical appliance, characterized in that, include support frame; and The battery device as claimed in any one of claims 1 to 16, wherein the number of battery devices is at least two, and the at least two battery devices are arranged along the second direction; and A first locking member passes through the hanging hole to connect the battery device to the support frame; The feature is that, in any two adjacent battery devices, the hanging hole through which the first locking member for connecting one battery device passes and the hanging hole through which the first locking member for connecting the other battery device pass are projected out of alignment on a projection plane perpendicular to the second direction.

18. The electrical equipment as described in claim 17, characterized in that, The support frame is provided with at least two mounting cavities, which are arranged along the second direction, and each mounting cavity has a mounting opening at one end in the first direction; Each of the battery devices is installed in one of the mounting cavities, and the first mounting hole is located in the battery box on the side facing the mounting opening.

19. A battery box, used in a battery device, characterized in that, The battery box has a first mounting structure on one side of the outer side in a first direction. The first mounting structure includes at least two types of mounting holes. The mounting holes extend along a second direction, which is the height direction of the battery box and intersects with the first direction. On a projection plane perpendicular to the second direction, the projections of various types of hanging holes are staggered so that when at least two battery devices are stacked along the second direction, adjacent battery devices can be installed through the staggered hanging holes.

20. The battery box as claimed in claim 19, characterized in that, The at least two types of hanging holes are arranged along a third direction, which intersects the first direction and the second direction.

21. The battery box as claimed in claim 20, characterized in that, The at least two types of hanging holes include a first type of hanging hole and a second type of hanging hole. The first type of hanging hole includes two first mounting holes, and the second type of hanging hole includes two second mounting holes. Two first mounting holes are located on both sides of the center line of the battery box, and two second mounting holes are located on both sides of the center line of the battery box, between the two first mounting holes.

22. The battery box as described in any one of claims 19 to 21, characterized in that, The battery box includes: Box; and A lid is provided, which covers one side of the box body in the second direction and surrounds the box body to form a receiving cavity. The battery cells of the battery device are disposed in the receiving cavity, and the hanging hole is located on the side of the box body away from the lid.

23. The battery box as described in claim 22, characterized in that, The box body includes a bottom plate, the bottom plate and the box cover are arranged at relative intervals, and the bottom plate is provided with heat exchange channels inside; The battery box also includes a current collector, which is located on one side of the bottom plate of the box in the first direction. The current collector is provided with a liquid inlet and a liquid outlet, which are connected to the heat exchange channel. The at least two types of hanging holes include a first type of hanging hole and a second type of hanging hole, wherein the first type of hanging hole is provided on the bottom plate of the box and the second type of hanging hole is provided on the collector.

24. The battery box as claimed in claim 23, characterized in that, The bottom plate of the box is configured as an integral extrusion molding structure extruded along the first direction. The bottom plate of the box has an extrusion cavity, which is configured as the heat exchange channel. The first type of hanging hole is isolated from the heat exchange channel.

25. The battery box as claimed in claim 24, characterized in that, The box body also includes two side panels and two end panels. The two side panels are respectively located on both sides of the bottom panel in the third direction. The bottom panel and at least one side panel are configured as an integral extrusion molding structure. The two end panels are respectively located on both sides of the bottom panel in the first direction. The third direction intersects the first direction and the second direction. The bottom plate, the two side plates, and the two end plates of the box are arranged to form a receiving groove. The box cover is closed on the opening of the receiving groove and is arranged to form the receiving cavity together with the receiving groove.

26. The battery box as described in any one of claims 19 to 21, characterized in that, The battery box has a second mounting structure on at least one of its two sides in a third direction, the third direction intersecting the first direction and the second direction; The second mounting structure includes a third mounting hole, which extends along the first direction.

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