Battery device and electric equipment

Abstract

The utility model discloses a battery device and electric equipment, the battery device comprises a box body, a locking structure and a battery monomer arranged in the box body, the box body is provided with a top surface and a bottom surface which are oppositely arranged along the height direction of the box body, and a side surface connected with the top surface and the bottom surface; a reinforcing rib is arranged on the top surface, and a first connecting position is arranged on the reinforcing rib; the locking structure is mounted on the side surface or the bottom surface; the locking structure is further provided with a second connecting position. The first connecting position and the second connecting position are both used for being connected with the beam body of the vehicle, the connecting stability is higher, and the torsional rigidity of the whole vehicle can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery devices, and particularly to a battery device and an electrical equipment. Background Art

[0002] The battery device is used to be installed on an electrical equipment. Taking the electrical equipment as a vehicle for example, the battery device is generally arranged on the beam of the vehicle. With the increasing customer requirements, there is a demand for lightweight in electric vehicles to improve the cruising range. However, a light weight means that the use of reinforcement members and connection components needs to be reduced, or the size of the material needs to be reduced, resulting in a low torsional stiffness of the vehicle. Summary of the Utility Model

[0003] The main purpose of the present application is to propose a battery device and an electrical equipment, aiming to at least improve the technical problem of low torsional stiffness of the vehicle.

[0004] To achieve the above object, according to some embodiments of the present application, the present application provides a battery device, including a box body, a locking structure, and battery cells arranged in the box body. The box body has a top surface and a bottom surface oppositely arranged along its height direction, and a side surface connecting the top surface and the bottom surface; reinforcing ribs are arranged on the top surface, and a first connection position is arranged on the reinforcing ribs; the locking structure is installed on the side surface or the bottom surface; and a second connection position is further arranged on the locking structure.

[0005] By respectively arranging the first connection position and the second connection position on the top surface and the bottom surface, or respectively arranging the first connection position and the second connection position on both the top surface and the side surface, the battery device is locked to the beam of the vehicle from two surface dimensions by arranging connection positions on two surfaces, which is beneficial to improving the locking strength between the battery device and the beam, and further improving the torsional stiffness of the whole vehicle. At the same time, reinforcing ribs are also arranged on the top surface, and the first connection position is arranged on the reinforcing ribs to reduce the risk of the top surface being strained and damaged due to excessive load.

[0006] In some embodiments, the first connection position includes a first mounting hole, the number of the reinforcing ribs is multiple, the multiple reinforcing ribs are arranged at intervals, and a first mounting hole is arranged on each reinforcing rib.

[0007] By arranging multiple reinforcing ribs at intervals and arranging first mounting holes on each reinforcing rib, it is beneficial to improve the connection strength and reduce the damage to the top surface.

[0008] In some embodiments, the locking structure includes a tab arranged on the side surface. The tab includes a first connecting plate, a transition plate, and a second connecting plate connected in sequence. The first connecting plate is installed on the side surface, and the second connecting plate is provided with the second connection position.

[0009] By arranging tabs on the side surface and connecting the box body of the battery device and the main beam through the tabs, the battery device is installed on the main beam, realizing the installation and fixation of the battery device.

[0010] In some embodiments, the side surface protrudes outwardly to be provided with an extending section, the transition plate extends along the height direction of the box body, the first connecting plate and the second connecting plate are respectively arranged on opposite sides of the transition plate along the extending direction and extend in opposite directions, the first connecting plate is connected to the extending section, the second connecting position includes a second mounting hole, and the central axis of the second mounting hole is arranged along the height direction.

[0011] By arranging the extending section on the side surface of the box body, it is convenient to install the tab on the box body, and the connection structure is more stable, which can reduce the damage to the strength of the box body structure itself. In addition, by arranging the second connecting plate along the horizontal direction towards the top or bottom of the main beam, the damage to the side strength of the main beam can be reduced and the occupation of the side space of the main beam can be reduced.

[0012] In some embodiments, the transition plate extends along a direction perpendicular to the side surface, the first connecting plate and the second connecting plate are respectively arranged on opposite sides of the transition plate along the extending direction, the first connecting plate and the side surface are connected by a locking member, the second connecting position includes a second mounting hole, and the central axis of the second mounting hole is perpendicular to the side surface.

[0013] By arranging the transition plate to extend along a direction perpendicular to the side surface, the first connecting plate and the second connecting plate are respectively arranged on opposite sides of the transition plate along the extending direction, and the second connecting position is set as a second mounting hole in the horizontal direction to be connected to the main beam, and the connection method is relatively convenient.

[0014] In some embodiments, the locking structure includes a support member, the support member includes a support plate and a transfer plate connected to each other, the support plate is arranged on the bottom surface, the transfer plate is arranged on the side surface and is spaced from the side surface, and the second connecting position is arranged on the transfer plate.

[0015] By arranging the support member to include a support plate and a transfer plate, the support plate is arranged on the bottom surface to lock the bottom surface, and the connecting plate is used to connect with the beam body of the vehicle, so as to fixedly install the support member on the beam body, thereby realizing the locking of the battery device on the beam body.

[0016] In some embodiments, the number of the transfer plates is two, and the two transfer plates are respectively connected to two ends of the support plate.

[0017] By arranging two transfer plates respectively at two ends of the support plate, locking can be performed from both sides of the box body, the force is more balanced, and the installation is more firm.

[0018] In some embodiments, the support plate includes a slot body having a slot and a flange arranged at the edge of the slot, the bottom surface is connected to the flange by a locking accessory, an energy absorption space connected to the slot is arranged in the slot body, and the slot is arranged toward the bottom surface.

[0019] The trough body can deform to absorb part of the energy, thereby reducing the damage that the collision impact may cause to the box body.

[0020] The battery device is fixed on the support plate by arranging the flange to be connected with the bottom surface, and the energy absorbing space is arranged in the groove body to buffer the external impact through deformation, thereby protecting the battery device.

[0021] In some embodiments, the support plate is spaced apart from the bottom surface.

[0022] By setting a spacing between the support plate and the bottom surface, space is reserved for deformation of the support plate, which can provide better protection for the box body.

[0023] In some embodiments, the locking structure includes a support member, which includes a support plate, an adapter plate and a mounting plate connected in sequence, the support plate is arranged on the bottom surface, the adapter plate is connected to the side surface, the mounting plate is connected to the adapter plate, and the second connection position is arranged on the mounting plate.

[0024] The support member includes a support plate, an adapter plate and a mounting plate connected in sequence, and a second connection position is provided on the mounting plate. The support plate supports and connects the bottom surface, and the adapter plate can be connected to the side of the box body, and then connected to the main beam through the mounting plate. This embodiment realizes the three-sided locking of the side surface, top surface and bottom surface of the box body, and the connection is more firm.

[0025] In some embodiments, the box body includes a main body and a cover plate covering an opening of the main body, the cover plate has the top surface, the main body has the bottom surface, and the side periphery of the cover plate and the side periphery of the main body cooperate to form the side surface.

[0026] By arranging the box body to include a main body and a cover plate covering the opening of the main body, the main body and the cover plate are in a detachable connection, so that installation and disassembly are very convenient.

[0027] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on the structures shown in these drawings.

[0029] Figure 1 Structural schematic diagram of a vehicle according to some embodiments of the present application;

[0030] Figure 2 Exploded structural schematic diagram of a battery device according to some embodiments of the present application;

[0031] Figure 3 Three-dimensional structural schematic diagram of a battery device according to some embodiments of the present application;

[0032] Figure 4 For Figure 3 Enlarged structural schematic diagram at A;

[0033] Figure 5 Three-dimensional structural schematic diagram of a part of the vehicle structure according to some embodiments of the present application;

[0034] Figure 6 Another three-dimensional structural schematic diagram of a part of the vehicle structure according to some embodiments of the present application;

[0035] Figure 7 For Figure 6 Enlarged structural schematic diagram at B;

[0036] Figure 8 Another three-dimensional structural schematic diagram of a battery device according to some embodiments of the present application;

[0037] Figure 9 For Figure 8 Structural schematic diagram from another perspective;

[0038] Figure 10 Another three-dimensional structural schematic diagram of a part of the vehicle structure according to some embodiments of the present application;

[0039] Figure 11 Another three-dimensional structural schematic diagram of a battery device according to some embodiments of the present application;

[0040] Figure 12 Another three-dimensional structural schematic diagram of a part of the vehicle structure according to some embodiments of the present application;

[0041] Figure 13 For Figure 12 Enlarged structural schematic diagram at C.

[0042] Explanation of the reference numerals in the drawings:

[0043] 1000, vehicle;

[0044] 100, battery device; 200, control device; 300, motor;

[0045] 10, box body; 101, cover plate; 102, body;

[0046] 11, top surface; 111, reinforcing rib; 112, first connection position; 1121, first mounting hole; 12, side surface; 13, bottom surface; 14, protruding section;

[0047] 20, battery cell;

[0048] 30, locking structure; 31, tab; 311, first connecting plate; 312, transition plate; 313, second connecting plate; 32, second connection position; 33, support member; 331, support plate; 3311, groove; 3312, flanging; 3313, energy absorption space; 332, adapter plate; 333, mounting plate;

[0049] 40, cross beam; 50, main beam; 60, first threaded part; 70, second threaded part.

[0050] The realization of the purpose, functional features and advantages of this application will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0051] Next, the technical solutions in this embodiment will be clearly and completely described in conjunction with the accompanying drawings in this embodiment. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0052] It should be noted that all directional indications (such as up, down, left, right, front, back...) in this embodiment are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0053] In addition, the descriptions such as "first" and "second" in this application are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0054] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0055] In addition, the technical solutions between the various embodiments of the present application can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application. It should be understood that the specific embodiments described here are only used to explain this application and are not used to limit this application.

[0056] The descriptions of directions such as "up", "down", "front", "back", "left" and "right" in this application are based on the directions shown in the figure and are only used to explain the relative position relationship between the components in the posture shown in the figure. If the specific posture changes, the directional indication will also change accordingly.

[0057] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0058] The battery device is used to be installed on the electrical equipment. For example, if the electrical equipment is a vehicle, the battery device is generally installed on the beam of the vehicle. With the increasing demand of customers, there is a demand for lightweight electric vehicles to increase the driving range. However, light weight means that the use of reinforcements and connecting components needs to be reduced, or the size of the material needs to be reduced, resulting in low torsional stiffness of the vehicle.

[0059] After careful research, the applicant found that after the battery device is installed on the beam, due to the heavy weight of the battery device, a slight shaking during use will cause a large shaking of the entire vehicle. The loose installation structure of the battery device not only fails to play a positive role in the torsional stiffness of the vehicle, but on the contrary, the shaking of the battery device will bring a large torque to the beam, causing the beam to be subjected to greater stress and prone to deformation and other risks.

[0060] To this end, the applicant provides a new structural design of a battery device. The battery device includes a box body, a locking structure, and battery cells disposed inside the box body. The box body has a top surface and a bottom surface oppositely disposed along its height direction, and side surfaces connecting the top surface and the bottom surface; reinforcing ribs are provided on the top surface, and a first connection position is provided on the reinforcing ribs; the locking structure is installed on the side surface or the bottom surface; a second connection position is also provided on the locking structure. Both the first connection position and the second connection position are used for connecting to the beam body of the vehicle, and the connection stability is higher, which is beneficial to improving the torsional stiffness of the whole vehicle.

[0061] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of a vehicle 1000 provided in some embodiments of the present application. The electrical device can be the vehicle 1000. The vehicle 1000 can be a fuel vehicle, a gas vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc. A battery device 100 is disposed inside the vehicle 1000, and the battery device 100 can be disposed at the bottom, the head, or the tail of the vehicle 1000. The battery device 100 can be used for power supply of the vehicle 1000. For example, the battery device 100 can be used as the operating power source of the vehicle 1000. The vehicle 1000 can also include a control device 200 and a motor 300. The control device 200 is used to control the battery device 100 to supply power to the motor 300. For example, it is used for the working power requirements during the start, navigation, and driving of the vehicle 1000.

[0062] In some embodiments of the present application, the battery device 100 can not only be used as the operating power source of the vehicle 1000, but also be used as the driving power source of the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0063] Please refer to Figure 2 , Figure 2 which is an exploded structural diagram of the battery device 100 provided in some embodiments of the present application. The battery device 100 includes a box body 10 and battery cells 20, and the battery cells 20 are accommodated inside the box body 10. Among them, the box body 10 is used to provide an accommodation cavity for the battery cells 20, and the box body 10 can adopt various structures. In some embodiments, the box body 10 can include a cover plate 101 and a main body 102. The cover plate 101 and the main body 102 are covered with each other, and the cover plate 101 and the main body 102 jointly define an accommodation cavity for accommodating the battery cells 20. The main body 102 can be a hollow structure with one end open, and the cover plate 101 can be a plate-like structure. The cover plate 101 is covered on the open side of the main body 102 so that the cover plate 101 and the main body 102 jointly define the accommodation cavity; the cover plate 101 and the main body 102 can also both be hollow structures with one side open, and the open side of the cover plate 101 is covered on the open side of the main body 102. Of course, the box body 10 formed by the cover plate 101 and the main body 102 can be of various shapes, such as a cylinder, a cuboid, etc.

[0064] In the battery device 100, there may be multiple battery cells 20, and the multiple battery cells 20 can be connected in series, in parallel, or in a combined series-parallel connection. A combined series-parallel connection means that there are both series and parallel connections among the multiple battery cells 20. The multiple battery cells 20 can be directly connected in series, in parallel, or in a combined series-parallel connection together, and then the whole formed by the multiple battery cells 20 is accommodated in the box body 10. Of course, in the battery device 100, multiple battery cells 20 can also be first connected in series, in parallel, or in a combined series-parallel connection to form a battery module, and then multiple battery modules are connected in series, in parallel, or in a combined series-parallel connection to form a whole and are accommodated in the box body 10. The battery device 100 may further include other structures. For example, the battery device 100 may further include a busbar component for realizing the electrical connection among the multiple battery cells 20.

[0065] Among them, each battery cell 20 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 can be in a cylindrical shape, a flat shape, a cuboid shape, or other shapes.

[0066] Referring to Figure 3 、 Figure 5 and Figure 9 According to some embodiments of the present application, the present application provides a battery device 100, including a box body 10, a locking structure 30, and battery cells 20 disposed in the box body 10. The box body 10 has a top surface 11 and a bottom surface 13 oppositely disposed along its height direction, and a side surface 12 connecting the top surface 11 and the bottom surface 13; a reinforcing rib 111 is disposed on the top surface 11, and a first connection position 112 is disposed on the reinforcing rib 111; the locking structure 30 is installed on the side surface 12 or the bottom surface 13; a second connection position 32 is further disposed on the locking structure 30.

[0067] It should be noted that in each embodiment of the present application, the height direction of the box body 10 refers to the direction perpendicular to the top surface 11 or the bottom surface 13 of the box body 10. The height direction of the box body 10 is as shown by the arrow Z in Figure 3 , generally the vertical direction in the use state of the battery device 100. The length direction is as shown by the arrow X in Figure 3 , which is also the extending direction of the main beam 50 in the vehicle 1000. The width direction is as shown by the arrow Y in Figure 3 , which is also the extending direction of the cross beam 40 in the vehicle 1000. Generally speaking, in the use state, when the battery device 100 is installed on the vehicle 1000, the bottom surface 13 is located on the side facing the ground, that is, below, the top surface 11 is located above, and the side surface 12 is the outer surface of the side wall connecting the top surface 11 and the bottom surface 13. The top surface 11, the bottom surface 13, and the side surface 12 enclose a cavity, and multiple battery cells 20 are disposed in the cavity.

[0068] After careful research, the applicant found that previous studies on the torsional stiffness of the vehicle 1000 were all based on the frame, which includes a beam. In order to increase the torsional stiffness of the vehicle 1000, the applicant considered that the battery device 100 could be tightly locked to the beam. When testing the torsional stiffness, the battery device 100 and the frame could be treated as a whole. This would increase the overall weight, which is beneficial to improving the torsional stiffness of the vehicle and reducing the risk of possible deformation of the beam due to the shaking of the battery device 100.

[0069] The traditional way to improve the locking strength is generally to set several locking positions on the side 12 of the box body 10. After repeated verification, the applicant found that this method can improve the locking strength to a certain extent, but it still cannot meet the customer's demand for torsional stiffness well, and the effect is not ideal in actual application scenarios. Therefore, the applicant wants to lock the box body 10 from multiple surface dimensions. Specifically, a first connection position 112 can be set on the top surface 11 of the box body 10, and a second connection position 32 can be set on the side 12 or bottom surface 13 of the box body 10. The first connection position 112 and the second connection position 32 can be connected to the beam body respectively, so that the battery device 100 can be installed through at least two locking surfaces or at least two surface dimensions (top surface 11 and bottom surface 13, or top surface 11 and side surface 12), increasing the locking dimension of the locking structure 30, making the connection between the battery device 100 and the beam body more secure, and after the battery device 100 is installed on the beam body, the space for shaking is smaller, which is conducive to improving the torsional stiffness of the vehicle 1000. In a specific application scenario, the beam body includes two parallel main beams 50 and a cross beam 40 respectively connected to the two ends of the two main beams 50. After the battery device 100 is installed on the beam body, the cross beam 40 is arranged above the top surface 11 of the battery device 100. The top surface 11 of the battery device 100 is mounted on the cross beam 40 through the first connection position 112, such as by bolts or screws. The top surface 11 needs to withstand a large tensile force, while the top surface 11 of the conventional battery device 100 does not need to withstand too much pressure or tension, so the strength of the conventional top surface 11 is relatively low. In the embodiment of the present application, a reinforcing rib 111 is arranged on the top surface 11 to strengthen the structure of the top surface 11, and the first connection position 112 is arranged on the reinforcing rib 111, which can reduce the risk of damage to the top surface 11 due to excessive force.

[0070] By respectively providing a first connection position 112 on the top surface 11 and a second connection position 32 on the bottom surface 13, or by respectively providing a first connection position 112 on the top surface 11 and a second connection position 32 on the side surface 12, the battery device 100 is locked to the beam of the vehicle 1000 from two surface dimensions by providing connection positions on two surfaces, which is beneficial to improving the locking strength between the battery device 100 and the beam, and further enhancing the torsional stiffness of the whole vehicle. At the same time, a reinforcing rib 111 is also provided on the top surface 11, and the first connection position 112 is arranged on the reinforcing rib 111 to reduce the risk of the top surface 11 being strained and damaged due to excessive load.

[0071] Referring to Figure 3 , in some embodiments, the first connection position 112 includes a first mounting hole 1121, the number of the reinforcing ribs 111 is multiple, the multiple reinforcing ribs 111 are arranged at intervals, and the first mounting hole 1121 is provided on each of the reinforcing ribs 111.

[0072] There may be multiple reinforcing ribs 111, and the multiple reinforcing ribs 111 may be arranged at intervals along the length direction of the box body 10, or may be arranged at intervals along the width direction of the box body 10. Taking the case where the reinforcing ribs 111 are arranged at intervals along the width direction of the box body 10 as an example, the first mounting hole 1121 is arranged on the reinforcing rib 111, which can reduce the risk of straining the top surface 11 when directly arranged on the top surface 11. Specifically, the first mounting hole 1121 may include multiple sub-holes, and the multiple sub-holes are arranged at intervals on the reinforcing rib 111.

[0073] By arranging the multiple reinforcing ribs 111 at intervals and providing the first mounting hole 1121 on each of the reinforcing ribs 111, it is beneficial to improve the connection strength and reduce the damage to the top surface 11.

[0074] Referring to Figure 3 and Figure 4 , in some embodiments, the locking structure 30 includes a tab 31 provided on the side surface 12, the tab 31 includes a first connecting plate 311, a transition plate 312 and a second connecting plate 313 connected in sequence, the first connecting plate 311 is mounted on the side surface 12, and the second connecting plate 313 is provided with a second connection position 32.

[0075] When the locking structure 30 is disposed on the side surface 12, the locking structure 30 may include an ear 31 mounted on the side surface 12, and the ear 31 is connected to the main beams 50 disposed on both sides of the battery device 100. Specifically, the structure of the ear 31 may include a first connecting plate 311, a transition plate 312, and a second connecting plate 313 that are connected end to end in sequence. The first connecting plate 311 is mounted on the side surface 12, and the specific mounting method may be welding, threaded connection, or snap connection. A second connection position 32 is provided on the second connecting plate 313, and the second connection position 32 is used to connect to the main beam 50. In this way, the battery device 100 is mounted on the main beam 50, playing a role in fixedly mounting the battery device 100.

[0076] By providing the ear 31 on the side surface 12, connecting the box body 10 of the battery device 100 and the main beam 50 through the ear 31, and mounting the battery device 100 on the main beam 50, the installation and fixation of the battery device 100 are realized.

[0077] Refer to Figure 4 、 Figure 6 and Figure 7 In some embodiments, a protruding section 14 is provided on the side surface 12 protruding outward. The transition plate 312 extends along the height direction of the box body 10. The first connecting plate 311 and the second connecting plate 313 are respectively disposed on opposite sides of the transition plate 312 along the extending direction and extend in opposite directions. The first connecting plate 311 is connected to the protruding section 14. The second connection position 32 includes a second mounting hole, and the central axis of the second mounting hole is disposed along the height direction.

[0078] As a specific embodiment of the structure of the pole ear 31, the side 12 of the battery device 100 facing the main beam 50 is provided with an extension section 14 on both sides, or the battery device 100 is provided with an extension section 14 on both sides along the width direction of the box 10, and the extension section 14 can be an outer edge extending from the middle of the side, and can be strip-shaped or plate-shaped. A connection structure is provided on the extension section 14 for connecting with the first connecting plate 311. The extension section 14 is mainly for facilitating the connection between the first connecting plate 311 and the box 10. The connection method here can be snap-on, threaded connection or welding, etc., and this application does not specifically limit the connection method. The transition plate 312 can be a vertically arranged plate, and a first connecting plate 311 is arranged on the top of the transition plate 312. The first connecting plate 311 extends toward the direction where the box body 10 is located, so as to be connected to the extension section 14, and then the pole ear 31 is installed on the box body 10. The second connecting plate 313 is used to extend toward the side away from the box body 10. When the battery device 100 is installed on the vehicle 1000, the second connecting plate 313 extends toward the direction where the main beam 50 is located. A second mounting hole is arranged on the second connecting position 32, and the central axis of the second mounting hole is arranged along the height direction, that is, it is arranged in the vertical direction. In this way, the second connecting plate 313 can be connected to the top end of the main beam 50 or the bottom end of the main beam 50, and a threaded hole is arranged on the top end or the bottom end. The second connecting plate 313 is installed on the main beam 50 by passing the second threaded member 70 through the second mounting hole and the threaded hole. Figure 6 or Figure 7 As shown, the second connecting plate 313 is connected to the bottom end of the main beam 50. The threaded hole is arranged at the top or bottom end of the main beam 50, which can reduce the damage to the side strength of the main beam 50.

[0079] By providing the extension section 14 on the side 12 of the box body 10, it is convenient to install the pole ear 31 on the box body 10, and the connection structure is more stable, which can reduce the damage to the strength of the structure of the box body 10. In addition, the second connecting plate 313 is directed to the top or bottom of the main beam 50 in the horizontal direction, which can reduce the damage to the side strength of the main beam 50 and reduce the occupation of the side space of the main beam 50.

[0080] In some embodiments, the transition plate 312 is extended in a direction perpendicular to the side 12, the first connecting plate 311 and the second connecting plate 313 are respectively arranged on two opposite sides of the transition plate 312 along the extension direction, the first connecting plate 311 and the side 12 are connected by a locking member, and the second connecting position 32 includes a second mounting hole, and the central axis of the second mounting hole is arranged perpendicular to the side 12.

[0081] As a specific embodiment of the structure of the pole ear 31, the transition plate 312 is arranged perpendicular to the direction of the side 12, that is, arranged in the horizontal direction, and arranged along the width direction of the box body 10, the first connecting plate 311 and the second connecting plate 313 are respectively arranged on both sides of the transition plate 312 in the horizontal direction, the first connecting plate 311 and the second connecting plate 313 can be arranged in the height direction, that is, arranged vertically, and the first connecting plate 311 and the second connecting plate 313 can extend in the same direction or in opposite directions. The first connecting plate 311 can be welded, clamped or detachably connected to the side 12 by bolts or screws. The central axis of the second mounting hole is perpendicular to the side 12, that is, the second mounting hole is arranged horizontally, and a threaded hole can be arranged on the side of the main beam 50, and the second connecting plate 313 is installed on the side of the main beam 50 by passing the second mounting hole and the threaded hole through bolts or screws. Of course, a fixing plate can also be installed on the side, and a threaded hole is arranged on the fixing plate, and the second connecting plate 313 is installed on the fixing plate by bolts or screws.

[0082] By setting the transition plate 312 to extend in a direction perpendicular to the side surface 12, the first connecting plate 311 and the second connecting plate 313 are respectively set on the opposite sides of the transition plate 312 along the extension direction, and the second connecting position 32 is set as a second mounting hole in the horizontal direction to connect with the main beam 50. The connection method is more convenient.

[0083] Reference Figures 8 - 10 In some embodiments, the locking structure 30 includes a support member 33, and the support member 33 includes a support plate 331 and an adapter plate 332 that are connected to each other. The support plate 331 is arranged on the bottom surface 13, and the adapter plate 332 is arranged on the side surface 12 and spaced apart from the side surface 12. A second connection position 32 is arranged on the adapter plate 332.

[0084] When the locking structure 30 is arranged on the bottom surface 13, the locking structure 30 includes a support member 33, and the support member 33 supports the box body 10 from the bottom surface 13 by connecting with the bottom surface 13, and fixes the battery device 100 at the same time. Specifically, the support member 33 includes a support plate 331 and an adapter plate 332, the support plate 331 is used to connect with the bottom surface 13 to install and fix the battery device 100, the adapter plate 332 extends to the side surface 12 of the box body 10, and the adapter plate 332 is provided with a second connection position 32, and the second connection position 32 is used to connect with the beam body, specifically, it can be connected with the main beam 50, and the main beam 50 is provided in the interval between the adapter plate 332 and the side surface 12, so that the adapter plate 332 is installed on the main beam 50, thereby locking and supporting the bottom surface 13 of the battery device 100 through the connection between the support plate 331 and the bottom surface 13. Of course, there may be multiple support members 33 , which are spaced apart along the length direction of the box body 10 to support and lock the battery device 100 from multiple positions on the bottom surface 13 of the box body 10 .

[0085] By providing that the support member 33 includes a support plate 331 and an adapter plate 332, the support plate 331 is disposed on the bottom surface 13 to lock the bottom surface 13, and the connection plate is used to connect with the beam of the vehicle 1000, so as to fixedly mount the support member 33 on the beam, thereby realizing the locking of the battery device 100 on the beam.

[0086] In some embodiments, the number of adapter plates 332 is two, and the two adapter plates 332 are respectively connected to both ends of the support plate 331.

[0087] The support plate 331 extends along the width direction of the box body 10 and protrudes from both sides of the box body 10 along the width direction. One adapter plate 332 is provided at each end of the support plate 331. The adapter plate 332 can extend from the support plate 331 towards the top surface 11 along the height direction, and the adapter plate 332 is spaced from the side surface 12. In this way, it can be installed on two main beams 50 respectively through one adapter plate 332 from both sides of the side surface 12 of the box body 10, with more symmetrical force and firmer installation.

[0088] By providing that two adapter plates 332 are respectively disposed at both ends of the support plate 331, locking can be performed from both sides of the box body 10, with more balanced force and firmer installation.

[0089] Referring to Figure 9 , in some embodiments, the support plate 331 includes a trough body 3311 having a notch and a flange 3312 disposed at the edge of the notch. The bottom surface 13 is connected to the flange 3312 through a locking member. An energy absorption space 3313 is formed in the trough body 3311. The energy absorption space 3313 communicates with the notch, and the notch faces the bottom surface 13.

[0090] The trough body 3311 can be a channel steel. The flange 3312 can be one or two. When there is one flange 3312, it is disposed on one side of the notch. When there are two flanges 3312, one flange 3312 is respectively disposed on both sides of the notch along the extending direction of the trough body 3311. The locking member can be a screw, a bolt or a rivet. The locking member connects the flange 3312 and the bottom surface 13 to play a role in installing and fixing the battery device 100. A recessed trough, that is, an energy absorption space 3313, is formed in the trough body 3311. Since the bottom surface 13 of the box body 10 faces the ground, if there are protrusions on the ground or the vehicle passes through a pothole, the bottom surface 13 is easily knocked. In this embodiment, the energy absorption space 3313 is provided on the trough body 3311. When an object on the ground knocks against the trough body 3311, the trough body 3311 can deform to absorb part of the energy, thereby reducing the possible damage to the box body 10 caused by the collision impact.

[0091] The battery device 100 is fixed on the support plate 331 by setting the flanging 3312 to be connected to the bottom surface 13. By providing an energy absorption space 3313 in the groove body 3311, the impact from the outside can be buffered through deformation, which plays a protective role for the battery device 100.

[0092] In some embodiments, the support plate 331 is spaced from the bottom surface 13.

[0093] Since the support plate 331 is disposed below the bottom surface 13, when the battery device 100 is installed on the vehicle 1000 for use, the raised portion on the ground may first collide with the support plate 331. By providing a gap between the support plate 331 and the bottom surface 13, a certain deformation space can be given to the support plate 331. On the one hand, the support plate 331 can absorb energy during the deformation process and reduce the collision impact. On the other hand, the support plate 331 will not touch the bottom surface 13 of the box body 10 under small deformation conditions, and will not cause damage to the box body 10. Specifically, the support plate 331 may include a groove body 3311 and a flanging 3312. The flanging 3312 is connected to the bottom surface 13 by screws or bolts, and there is still a certain gap between the flanging 3312 and the bottom surface 13, thereby realizing the spaced arrangement of the support plate 331 and the bottom surface 13.

[0094] By setting the support plate 331 to be spaced from the bottom surface 13 and reserving space for the deformation of the support plate 331, a better protective effect can be achieved on the box body 10.

[0095] Refer to Figures 11 to 13 , in some embodiments, the locking structure 30 includes a support member 33. The support member 33 includes a support plate 331, a transition plate 332, and a mounting plate 333 that are connected in sequence. The support plate 331 is disposed on the bottom surface 13, the transition plate 332 is connected to the side surface 12, the mounting plate 333 is connected to the transition plate 332, and a second connection position 32 is provided on the mounting plate 333.

[0096] In this embodiment, the support member 33 includes a support plate 331, a transition plate 332, and a mounting plate 333 that are connected in sequence. The structure and function of the support plate 331 are similar to those in the foregoing embodiments, and are all used to be connected to the bottom surface 13 to play a role of connecting and supporting the box body 10. The difference is that the transition plate 332 is not directly used to be connected to the beam body, but is connected to the side surface 12 of the box body 10. The mounting plate 333 can be a plate body, such as a bent plate body, similar to a Z-shaped plate body. The mounting plate 333 can be fixedly connected or detachably connected to the transition plate 332, such as by threaded connection. A second connection position 32 is provided on the transition plate 332 for connection to the beam body, and then the battery device 100 is installed on the main beam 50 through the support member 33.

[0097] By setting that the support member 33 includes a support plate 331, an adapter plate 332 and a mounting plate 333 connected in sequence, and a second connection position 32 is arranged on the mounting plate 333. The support plate 331 plays a role in supporting and connecting the bottom surface 13, the adapter plate 332 can be connected to the side surface 12 of the box body 10, and then the mounting plate 333 is connected to the main beam 50. This embodiment realizes the three-sided locking of the side surface 12, the top surface 11 and the bottom surface 13 of the box body 10, and the connection is more firm.

[0098] In some embodiments, the box body 10 includes a main body 102 and a cover plate 101 covering the opening of the main body 102. The cover plate 101 has a top surface 11, the main body 102 has a bottom surface 13, and the side perimeter of the cover plate 101 and the side perimeter of the main body 102 cooperate to form a side surface 12.

[0099] The main body 102 refers to the bottom part of the box body 10. The main body 102 is formed with a receiving groove and an opening. The battery cells 20 are arranged in the receiving groove, and the opening is generally arranged towards the top. The cover plate 101 covers the opening. Specifically, the cover plate 101 and the main body 102 can also be connected by screws or the like. The main body 102 has a bottom surface 13, and the bottom surface 13 is the side facing the ground. The side perimeter of the cover plate 101 and the side perimeter of the main body 102 cooperate to form a side surface 12.

[0100] By setting that the box body 10 includes a main body 102 and a cover plate 101 covering the opening of the main body 102, the main body 102 and the cover plate 101 are in a detachable connection relationship, so that the installation and disassembly are very convenient.

[0101] According to some embodiments of the present application, the present application provides a battery device 100, including a box body 10, a locking structure 30 and battery cells 20 arranged in the box body 10. The box body 10 has a top surface 11 and a bottom surface 13 oppositely arranged along its height direction, and a side surface 12 connecting the top surface 11 and the bottom surface 13; reinforcing ribs 111 are arranged on the top surface 11, the number of the reinforcing ribs 111 is multiple, the multiple reinforcing ribs 111 are arranged at intervals, and first mounting holes 1121 are arranged on each of the reinforcing ribs 111; the first mounting holes 1121 are used for connecting with a cross beam 40 to lock the top surface 11 of the box body 10.

[0102] The locking structure 30 can be the tab 31 mounted on the side 12, and the tab 31 is used to lock with the side 12 of the box body 10. The tab 31 includes a first connecting plate 311, a transition plate 312, and a second connecting plate 313 connected in sequence. The first connecting plate 311 is mounted on the side 12, and the second connecting plate 313 is provided with a second connecting position 32. In some embodiments, the side 12 is provided with a protruding extension section 14. The transition plate 312 extends along the height direction of the box body 10. The first connecting plate 311 and the second connecting plate 313 are respectively arranged on opposite sides of the transition plate 312 along the extension direction and extend in opposite directions. The first connecting plate 311 is connected to the extension section 14. The second connecting position 32 includes a second mounting hole, and the central axis of the second mounting hole is arranged along the height direction. In other embodiments, the transition plate 312 extends along a direction perpendicular to the side 12. The first connecting plate 311 and the second connecting plate 313 are respectively arranged on opposite sides of the transition plate 312 along the extension direction. The first connecting plate 311 and the side 12 are connected by a locking member. The second connecting position 32 includes a second mounting hole, and the central axis of the second mounting hole is perpendicular to the side 12.

[0103] The locking structure 30 can be the support member 33 mounted on the bottom surface 13. In some embodiments, the support member 33 includes a support plate 331 and an adapter plate 332 connected to each other. The number of adapter plates 332 is two, and the two adapter plates 332 are respectively connected to both ends of the support plate 331. The support plate 331 is arranged on the bottom surface 13, and the adapter plate 332 is arranged on the side 12. The adapter plate 332 is provided with a second connecting position 32. The support plate 331 includes a groove body 3311 and a flange 3312 arranged at the edge of the groove opening of the groove body 3311. The bottom surface 13 and the flange 3312 are connected by a locking accessory. An energy absorption space 3313 is formed in the groove body 3311, and the groove opening faces the bottom surface 13. The support plate 331 is spaced from the bottom surface 13. In other embodiments, the support member 33 includes a support member 33 and a mounting plate 333. The support member 33 includes a support plate 331 and an adapter plate 332 connected to each other. The support plate 331 is arranged on the bottom surface 13, the adapter plate 332 is connected to the side 12, and the mounting plate 333 is connected to the adapter plate 332, and the mounting plate 333 is provided with a second connecting position 32.

[0104] This application can lock the box body 10 from two dimensions of the box body 10 (the top surface 11, the bottom surface 13, and the side 12 are each counted as one dimension), so that the battery device 100 is integrated with the beam body, which is beneficial to improving the torsional stiffness of the whole vehicle.

[0105] Refer to Figure 5 、 Figure 7 and Figure 10, according to some embodiments of the present application, the present application provides an electrical device, which includes a beam body and the above-mentioned battery device 100. The beam body includes a cross beam 40 and two main beams 50 arranged in parallel. The two ends of the cross beam 40 are respectively connected to the two main beams 50. The cross beam 40 is connected to the top surface 11 by a first threaded member 60 passing through a first connection position 112, and the main beam 50 is connected to the bottom surface 13 or the side surface 12 by a second threaded member 70 passing through a second connection position 32.

[0106] The two main beams 50 are arranged in parallel and are placed along the width direction of the box body 10. The two main beams 50 are respectively located on both sides of the width direction of the box body 10. The two ends of each cross beam 40 are respectively connected to the two main beams 50. The cross beam 40 is arranged above the battery device 100. A hole position can be arranged on the cross beam 40, and the number of hole positions can be multiple. The first connection position 112 can include a first mounting hole 1121. The hole position and the first mounting hole 1121 are arranged correspondingly. The top surface 11 is locked to the cross beam 40 by the first threaded member 60 passing through the hole position and the first mounting hole 1121, so as to realize the mounting of the battery device 100. In a specific embodiment, the number of cross beams 40 can be multiple, and the multiple cross beams 40 are arranged along the length direction of the battery device 100. In this way, the top surface 11 of the battery device 100 can be locked from multiple positions. Specifically, a reinforcing rib 111 is arranged on the top surface 11, and the first mounting hole 1121 is arranged on the reinforcing rib 111. The reinforcing rib 111 plays a role in strengthening the top surface 11. When the locking structure 30 is arranged on the side surface 12, the second threaded member 70 can connect the main beam 50 and the second connection position 32 to lock the side surface 12 of the battery device 100 to the main beam 50. When the locking structure 30 is arranged on the bottom surface 13, the bottom surface 13 of the battery device 100 can also be locked to the main beam 50 by the second threaded member 70 connecting the main beam 50 and the second connection position 32. The first threaded member 60 and the second threaded member 70 can be screws or bolts. Of course, they can also be rivets, etc.

[0107] By the beam body including a cross beam 40 and two main beams 50 arranged in parallel, the two ends of the cross beam 40 are respectively connected to the two main beams 50. The cross beam 40 is connected to the top surface 11 by a first threaded member 60 passing through a first connection position 112, and the main beam 50 is connected to the bottom surface 13 or the side surface 12 by a second threaded member 70 passing through a second connection position 32. The battery device 100 can be fixedly installed through at least two locking surfaces, so that the battery device 100 and the beam body can be regarded as a whole, which is beneficial to improving the torsional stiffness of the whole vehicle.

[0108] The above are only the optional embodiments of the present application, and do not limit the patent scope of the present application accordingly. Any equivalent structural transformation made under the application concept of the present application by using the content of the specification and drawings of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A battery device, characterized in that: include: A box body and a battery cell disposed in the box body, wherein the box body has a top surface and a bottom surface disposed opposite to each other along a height direction thereof, and a side surface connecting the top surface and the bottom surface; a reinforcing rib is disposed on the top surface, and a first connection position is disposed on the reinforcing rib; and A locking structure is installed on the side surface or the bottom surface; a second connecting position is also provided on the locking structure.

2. The battery device according to claim 1, characterized in that: The first connection position includes a first mounting hole. There are multiple reinforcing ribs, which are arranged at intervals, and each of the reinforcing ribs is provided with the first mounting hole.

3. The battery device according to claim 1, characterized in that: The locking structure includes a pole ear arranged on the side surface, and the pole ear includes a first connecting plate, a transition plate, and a second connecting plate connected in sequence. The first connecting plate is installed on the side surface, and the second connecting plate is provided with the second connecting position.

4. The battery device according to claim 3, characterized in that: The side surface is protruded outwardly and is provided with an extension section, the transition plate is extended along the height direction of the box body, the first connecting plate and the second connecting plate are respectively arranged on the opposite sides of the transition plate along the extension direction and extend in opposite directions, the first connecting plate is connected to the extension section, the second connecting position includes a second mounting hole, and the central axis of the second mounting hole is arranged along the height direction of the box body.

5. The battery device according to claim 3, characterized in that: The transition plate is extended in a direction perpendicular to the side surface, the first connecting plate and the second connecting plate are respectively arranged on two opposite sides of the transition plate along the extension direction, the first connecting plate and the side surface are connected by a locking piece, the second connecting position includes a second mounting hole, and the central axis of the second mounting hole is arranged perpendicular to the side surface.

6. The battery device according to claim 1, characterized in that: The locking structure includes a support member, which includes a support plate and an adapter plate connected to each other, the support plate is arranged on the bottom surface, the adapter plate is arranged on the side surface and spaced apart from the side surface, and the second connection position is arranged on the adapter plate.

7. The battery device according to claim 6, characterized in that: The number of the adapter plates is two, and the two adapter plates are respectively connected to two ends of the support plate.

8. The battery device according to claim 6, characterized in that: The support plate includes a slot body with a slot and a flange arranged at the edge of the slot, the bottom surface is connected to the flange by a locking component, an energy absorbing space connected to the slot is arranged in the slot body, and the slot is arranged toward the bottom surface.

9. The battery device according to claim 6, characterized in that: The support plate is spaced apart from the bottom surface.

10. The battery device according to claim 1, characterized in that: The locking structure includes a support member, which includes a support plate, an adapter plate and a mounting plate connected in sequence, the support plate is arranged on the bottom surface, the adapter plate is connected to the side surface, the mounting plate is connected to the adapter plate, and the second connection position is arranged on the mounting plate.

11. The battery device according to any one of claims 1 to 10, characterized in that: The box body comprises a main body and a cover plate covering an opening of the main body, the cover plate has the top surface, the main body has the bottom surface, and the side periphery of the cover plate cooperates with the side periphery of the main body to form the side surface.

12. An electrical device, characterized in that: The electrical equipment includes a beam body and a battery device as described in any one of claims 1 to 11, the beam body includes a crossbeam and two main beams arranged in parallel, the two ends of the crossbeam are respectively connected to the two main beams, the crossbeam is inserted into the first connecting position through a first threaded member to be connected to the top surface, and the main beam is inserted into the second connecting position through a second threaded member to be connected to the bottom surface or the side surface.

Images