Battery box and vehicle

Abstract

The present application relates to the field of battery technology and provides a battery box and a vehicle. According to the battery box provided by the present application, a first clamping assembly is driven by an external force, and the first clamping assembly can clamp the battery body in a first horizontal direction. The second clamping assembly is linked to the first clamping assembly, so that the second clamping assembly also synchronously clamps the battery body in a second horizontal direction, achieving the effect of driving the first clamping assembly and the linkage of the second clamping assembly. Ultimately, the battery body is effectively clamped in the horizontal plane, preventing the battery body from moving relative to the main box body, especially when the battery box is affected by vibration, thereby improving the anti-seismic performance of the battery box.

Description

Technical Field

[0001] The present application relates to the field of battery technology and provides a battery box and a vehicle. Background Art

[0002] With the booming new energy vehicle industry, innovation in automotive battery technology is becoming increasingly important. As an essential component of new energy vehicles, electric vehicles (EVs) have batteries as a key component. As the power source for new energy vehicles, the stable and reliable operation of batteries is crucial to driving safety and vehicle performance.

[0003] However, during the operation of new energy vehicles, the battery pack is subject to impact and vibration from various factors, such as road bumps and braking. These vibrations can wear out the battery's internal components and even cause looseness and poor contact, thereby shortening the battery's lifespan and reducing vehicle performance and safety. Existing battery mounting solutions are unable to effectively offset these vibrations and suffer from insufficient shock absorption performance. Summary of the Invention

[0004] In view of this, the present application provides a battery box and a vehicle, the purpose of which is to solve the above technical problems to a certain extent.

[0005] The present application provides a battery box, comprising:

[0006] A main box body, wherein the main box body has a cavity;

[0007] a battery body, the battery body being disposed in the cavity;

[0008] a first clamping assembly, the first clamping assembly comprising a first clamping member and a second clamping member opposite to each other in a first horizontal direction, the first clamping assembly being configured to approach each other in the first horizontal direction under the driving force of an external force to clamp the battery body;

[0009] A second clamping assembly, the second clamping assembly is linked to the first clamping assembly, the second clamping assembly includes a third clamping member and a fourth clamping member opposite to each other in a second horizontal direction perpendicular to the first horizontal direction, and the second clamping assembly is configured to enable the third clamping member and the fourth clamping member to synchronously clamp the battery body when the first clamping member and the second clamping member clamp the battery body.

[0010] On the basis of the above technical solution, optionally, the second clamping assembly includes a first linkage assembly and a second linkage assembly, the first linkage assembly and the second linkage assembly are respectively connected to the first clamping member and the second clamping member, the first clamping member and the second clamping member respectively apply force to the first linkage assembly and the second linkage assembly, so that the first linkage assembly and the second linkage assembly respectively apply force to the third clamping member and the fourth clamping member;

[0011] Wherein, the first linkage assembly and the second linkage assembly are both hydraulic linkage assemblies.

[0012] Based on any of the above technical solutions, optionally, the hydraulic linkage assembly includes:

[0013] a first piston structure, wherein the first piston structure is used to withstand external force;

[0014] a hydraulic body, the first piston structure being movably connected to the hydraulic body, and the hydraulic body storing a hydraulic medium;

[0015] A second piston structure is movably connected to the hydraulic body, and the second piston structure is used to apply force to the battery body.

[0016] Based on any of the above technical solutions, optionally, the first clamping member and the second clamping member are both U-shaped structures, the first clamping member and the second clamping member are both slidingly connected to the main box body, and the first clamping member and the second clamping member are both partially inserted into the bottom wall of the main box body.

[0017] On the basis of any of the above technical solutions, optionally, the outer side of the battery body has a first recess that cooperates with the third clamping member and a second recess that cooperates with the fourth clamping member.

[0018] Based on any of the above technical solutions, optionally, the battery box further includes a buffer mechanism, the buffer mechanism is connected to the main box body, the buffer mechanism is arranged below the main box body, and the buffer mechanism is used to buffer the movement of the main box body in the vertical direction;

[0019] Wherein, the buffer mechanism includes a direct buffer assembly connected to the main box body and an indirect buffer assembly connected to the direct buffer assembly.

[0020] Based on any of the above technical solutions, optionally, the direct buffer component is an elastic buffer component, and the indirect buffer component is a hydraulic buffer component.

[0021] Based on any of the above technical solutions, optionally, the direct buffer assembly includes a connecting assembly connected to the main box body and an elastic member arranged below the connecting assembly for supporting the connecting assembly, and the elastic member can be deformed in the vertical direction.

[0022] Based on any of the above technical solutions, optionally, the indirect buffer component includes a conversion component that converts the movement of the direct buffer component in the vertical direction into movement in the second horizontal direction, and the indirect buffer component also includes a hydraulic buffer structure connected to the conversion component, and the hydraulic buffer structure is arranged on one side of the conversion component in the second horizontal direction, and the hydraulic buffer structure is used to buffer the movement of the conversion component in the second horizontal direction.

[0023] A second aspect of the present application provides a vehicle, comprising the battery box as described above.

[0024] In this way, according to the battery box provided by the present application, the first clamping component is driven by external force, and the first clamping component can clamp the battery body in the first horizontal direction, and the second clamping component is linked with the first clamping component, so the second clamping component also synchronously clamps the battery body in the second horizontal direction, realizing the effect of driving the first clamping component and linking the second clamping component, and finally the battery body is effectively clamped in the horizontal plane, avoiding the battery body from moving relative to the main box body, especially when the battery box is affected by vibration, which is beneficial to improving the seismic performance of the battery box.

[0025] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A schematic diagram of a three-dimensional image of a battery box provided according to an embodiment of the present application is shown.

[0028] Figure 2 A schematic diagram showing the internal structure of a battery box provided according to an embodiment of the present application is shown.

[0029] Figure 3A schematic diagram showing the first to fourth clamping members of the battery box provided in an embodiment of the present application clamping the battery body is shown.

[0030] Figure 4 A schematic diagram of the third and fourth clamping members and the hydraulic body of the battery box provided in an embodiment of the present application is shown.

[0031] Figure 5 A schematic diagram of a three-dimensional diagram of a battery body of a battery box provided according to an embodiment of the present application is shown.

[0032] Figure 6 A schematic diagram showing the related structures of the first and second clamping members of the battery box provided according to an embodiment of the present application is shown.

[0033] Figure 7 A schematic diagram of a three-dimensional diagram of a buffer mechanism of a battery box provided according to an embodiment of the present application is shown.

[0034] Figure 8 A schematic diagram of another three-dimensional diagram of the buffer mechanism of the battery box provided according to an embodiment of the present application is shown.

[0035] Figure 9 A schematic diagram of structures such as a base and a bearing seat of a buffer mechanism of a battery box provided in an embodiment of the present application is shown.

[0036] Reference numerals:

[0037] 110 - first clamping member; 120 - second clamping member; 210 - third clamping member; 220 - first linkage assembly; 230 - second linkage assembly; 241 - first piston structure; 242 - second piston structure; 310 - direct buffer assembly; 320 - indirect buffer assembly; 410 - first recess; 510 - connecting assembly; 520 - elastic member; 610 - conversion assembly; 620 - hydraulic buffer structure;

[0038] 1-main box; 2-battery body; 3-double-headed screw; 4-first connecting rod; 5-clamping strip; 6-slide groove; 7-worm; 8-handwheel; 9-worm gear; 10-piston block; 11-first piston rod; 12-second connecting rod; 13-second piston rod; 14-pressing strip; 15-slot; 16-end block; 17-first spring; 18-base; 19-guide column; 20-connecting rod; 21-second spring; 22-support shaft; 23-rotating plate; 24-movable plate; 25-limiting groove; 26-damping rod; 27-bearing column; 28-base; 29-retaining ring; 30-rubber ring; 31-heat dissipation hole; 32-reinforcement rod; 33-hydraulic body. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solution of this application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0040] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0042] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0043] According to the first aspect of the embodiment of the present application, a battery box is provided. Figures 1 to 9 Describe in detail the structure and working principle of the battery box.

[0044] The present application provides a battery box, which includes a main box body, a battery body, a first clamping assembly and a second clamping assembly.

[0045] In an embodiment, the main housing has a cavity, and the battery body is disposed in the cavity. In an embodiment, the first clamping assembly includes a first clamping member 110 and a second clamping member 120 that are opposite to each other in a first horizontal direction. The first clamping assembly is configured to move closer to each other in the first horizontal direction under external force to clamp the battery body.

[0046] In an embodiment, the second clamping assembly is linked with the first clamping assembly, and the second clamping assembly includes a third clamping member 210 and a fourth clamping member opposite to each other in a second horizontal direction perpendicular to the first horizontal direction. The second clamping assembly is configured to enable the third clamping member 210 and the fourth clamping member to synchronously clamp the battery body when the first clamping member 110 and the second clamping member 120 clamp the battery body.

[0047] In this way, according to the battery box provided in the embodiment of the present application, the first clamping component is driven by external force, and the first clamping component can clamp the battery body in the first horizontal direction, and the second clamping component is linked with the first clamping component, so the second clamping component also synchronously clamps the battery body in the second horizontal direction, realizing the effect of driving the first clamping component and linking the second clamping component, and finally the battery body is effectively clamped in the horizontal plane, avoiding the battery body from moving relative to the main box body, especially when the battery box is affected by vibration, which is beneficial to improving the seismic performance of the battery box.

[0048] In an embodiment, the battery box may be, for example, a rectangular box, the first horizontal direction may be, for example, the width direction of the battery box, the second horizontal direction may be, for example, the length direction of the battery box, and the vertical direction referred to below may be the height direction of the battery box.

[0049] In an embodiment, the battery body may be substantially a module body of a battery box, that is, a module body including a plurality of electrically connected single batteries.

[0050] In the embodiment, the external force drives the first clamping assembly, and the "external force" referred to here can be understood as the force applied to the first clamping assembly by the operator. In the embodiment, the applied force can, for example, cause the mechanical structure in the first clamping assembly to move, thereby driving the first clamping member 110 and the second clamping member 120 in the first clamping assembly to move toward each other. In addition, it should be noted that the external force can also drive the first clamping member 110 and the second clamping member 120 in the first clamping assembly to move away from each other, thereby increasing the distance between the first clamping member 110 and the second clamping member 120 to reduce the degree of clamping on the battery body, and loosen the clamping on the battery body.

[0051] In addition, it can also be understood that when the first clamping member 110 and the second clamping member 120 reduce the degree of clamping on the battery body, the third clamping member 210 and the fourth clamping member can synchronously reduce the degree of clamping on the battery body, and when the first clamping member 110 and the second clamping member 120 loosen the clamping on the battery body, the third clamping member 210 and the fourth clamping member can synchronously loosen the clamping on the battery body.

[0052] According to the battery box provided in the embodiment of the present application, the second clamping assembly may include a first linkage assembly 220 and a second linkage assembly 230. The first linkage assembly 220 and the second linkage assembly 230 may be connected to the first clamping member 110 and the second clamping member 120 respectively. The first clamping member 110 and the second clamping member 120 may apply force to the first linkage assembly 220 and the second linkage assembly 230 respectively, so that the first linkage assembly 220 and the second linkage assembly 230 apply force to the third clamping member 210 and the fourth clamping member respectively.

[0053] In an embodiment, both the first linkage assembly 220 and the second linkage assembly 230 may be hydraulic linkage assemblies. In an embodiment, the hydraulic linkage assembly is used to convert the force applied by the first clamping assembly to the hydraulic linkage assembly into hydraulic energy, which is then converted into mechanical energy, so that the third clamping member 210 and the fourth clamping member apply force to the battery body, resulting in a fast response speed.

[0054] According to the battery box provided in an embodiment of the present application, the hydraulic linkage assembly may include a first piston structure 241, a second piston structure 242 and a hydraulic body, and the first piston structure 241 is used to withstand external forces, such as external forces applied to the first piston structure 241 by the first clamping member 110 and the second clamping member 120.

[0055] In an embodiment, the first piston structure 241 is movably connected to a hydraulic body, and a hydraulic medium is stored in the hydraulic body. As an example, the hydraulic body may be formed as a substantial hydraulic cylinder, and the hydraulic medium may be, for example, hydraulic oil.

[0056] In an embodiment, the second piston structure 242 can be movably connected to the hydraulic body and can be used to apply force to the battery body. That is, when the first piston structure 241 is subjected to external force and contracts into the hydraulic body, the pressure of the hydraulic medium in the hydraulic body increases, and the hydraulic medium exerts force on the second piston structure 242 to extend relative to the hydraulic body, thereby causing the third clamping member 210 and the fourth clamping member as described above to synchronously clamp the battery body.

[0057] According to the battery case provided in the embodiment of the present application, both the first clamping member 110 and the second clamping member 120 can be U-shaped structures. The first clamping member 110 and the second clamping member 120 are both slidably connected to the main case, and the first clamping member 110 and the second clamping member 120 are both partially inserted into the bottom wall of the main case. In this way, since the first clamping member 110 and the second clamping member 120 are partially inserted into the bottom wall of the main case, the first clamping member 110 and the second clamping member 120 are more stable relative to the main case, thereby further improving the stability of the first clamping member 110 and the second clamping member 120 when clamping the battery body.

[0058] According to the battery case provided in the embodiment of the present application, the outer side of the battery body may have a first recess 410 that cooperates with the third clamping member 210 and a second recess that cooperates with the fourth clamping member. In other words, the third clamping member 210 is embedded in the first recess 410 when clamping the battery body, and the fourth clamping member is embedded in the second recess when clamping the battery body, thereby ensuring a more stable clamping of the battery body by the third clamping member 210 and the fourth clamping member.

[0059] According to the battery box provided in the embodiment of the present application, the battery box may further include a buffer mechanism, which may be connected to the main box body and may be arranged below the main box body. The buffer mechanism is used to buffer the vertical movement of the main box body, thereby buffering the vibration of the main box body.

[0060] In an embodiment, the buffer mechanism includes a direct buffer assembly 310 connected to the main housing and an indirect buffer assembly 320 connected to the direct buffer assembly 310 .

[0061] According to the battery box provided in the embodiment of the present application, the direct buffer component 310 is an elastic buffer component, and the indirect buffer component 320 is a hydraulic buffer component. That is, the buffer component directly connected to the main box body utilizes the elastic deformation of the elastic structure to absorb energy to buffer the up and down vibrations of the main box body, while the indirect buffer component 320 connected to the direct buffer component 310 utilizes the hydraulic medium to absorb energy to buffer the position changes of some structures in the elastic buffer component.

[0062] In the embodiment, since the battery box is subjected to bumps in the vehicle during driving, which becomes a normal working condition of the battery box, elastic buffering, such as shock-absorbing springs, is a common technology used in related technologies to prevent shock in vehicle components or to provide a better passenger experience.

[0063] However, for new energy vehicles, the battery pack is crucial for both normal operation and safety, particularly with frequent vibrations posing a significant threat to the latter. Relying solely on elastic buffering presents numerous challenges. For one thing, the elastic structure faces fatigue failure during the reciprocating energy absorption and release process, necessitating complex fatigue failure testing before use to determine the lifespan of the elastic structure. However, such tests often deviate from actual operating conditions due to inadequate simulation of vehicle operating conditions, significantly reducing the credibility of the test results.

[0064] On the other hand, the response speed of the elastic structure is too slow. In other words, there is a hysteresis. This hysteresis itself is not reflected in the absorption of vibration energy, but rather in the release of vibration energy. In other words, under working conditions with frequent vibrations, such as some harsh road conditions, the elastic structure may often have a phase difference with the oscillation of the main box due to the hysteresis of its energy release, causing the descent of the main box to coincide with the rise of the elastic structure, and thus cannot truly and effectively reduce the shock of the main box.

[0065] The battery box provided in accordance with the embodiment of the present application further comprises an indirect buffer assembly 320 connected to the direct buffer assembly 310, which serves as an elastic buffer assembly, and a hydraulic buffer assembly serving as the indirect buffer assembly 320. On the one hand, the hydraulic buffer assembly converts the kinetic energy of the components of the elastic buffer assembly that move due to the vibration of the main housing into hydraulic energy and thermal energy, thereby increasing the buffering capacity of the overall buffer structure at the bottom of the main housing. On the other hand, the hydraulic buffer assembly's fast response speed, i.e., the nearly incompressible nature of the liquid, limits the oscillation of the elastic buffer assembly, preventing it from oscillating and thus avoiding the phase difference described above.

[0066] According to the battery box provided in an embodiment of the present application, as described above, the direct buffer assembly 310 may include a connecting assembly 510 connected to the main box body and an elastic member 520 arranged below the connecting assembly 510 for supporting the connecting assembly 510, and the elastic member 520 can be deformed in the vertical direction.

[0067] According to the battery box provided in an embodiment of the present application, as an example, the indirect buffer assembly 320 may include a conversion assembly 610 that converts the movement of the direct buffer assembly 310 in the vertical direction into movement in a second horizontal direction. The indirect buffer assembly 320 also includes a hydraulic buffer structure 620 connected to the conversion assembly 610. The hydraulic buffer structure 620 is arranged on one side of the conversion assembly 610 in the second horizontal direction. The hydraulic buffer structure 620 is used to buffer the movement of the conversion assembly 610 in the second horizontal direction.

[0068] Based on the technical features described above, a specific example of a battery box provided according to an embodiment of the present application will be described in detail below.

[0069] According to the embodiment of the present application, a battery box with a shock-absorbing function is provided for use in new energy vehicles, so as to solve, to a certain extent, the problems of wear, looseness, poor contact of internal components of the battery caused by the impact and vibration of various factors such as road bumps, braking and deceleration during the driving of new energy vehicles, thereby affecting the battery life, reducing vehicle performance and safety, and the technical problem of insufficient shock-absorbing performance of existing battery fixing solutions.

[0070] The battery box provided according to the embodiment of the present application includes a main box body 1, a battery body 2 is placed inside the main box body 1, and the battery body 2 is in contact with the bottom of the inner wall of the main box body 1, and a heat dissipation hole 31 is opened through the surface of the main box body 1.

[0071] In an embodiment, a mezzanine may be provided at the bottom of the inner wall of the main box body 1, a double-headed screw 3 may be rotatably connected inside the mezzanine, two first connecting rods 4 are threadedly connected to the surface of the double-headed screw 3, and the ends of the first connecting rods 4 may be fixedly connected with clamping strips 5 (the first connecting rod 4 and the two clamping strips 5 connected at both ends thereof form a U-shaped first clamping member 110, and the other first connecting rod 4 and the two clamping strips connected at both ends thereof form a U-shaped second clamping member 120).

[0072] In the embodiment, the clamping strip 5 can be used to fit against the surface of the battery body 2. A slide groove 6 is provided at the bottom of the inner wall of the main housing 1, and the inner wall of the slide groove 6 is slidably connected to the surface of the first connecting rod 4. In the embodiment, a worm 7 is laterally rotatably connected to the inner wall of the main housing 1, one end of which is fixedly connected to a handwheel 8. A worm gear 9 is fixedly sleeved on the middle portion of the double-headed screw 3, and the worm gear 9 is engaged with the worm 7, so that rotating the handwheel can drive the worm 7 to rotate, and then drive the worm gear 9 to rotate, so that the double-headed screw 3 (the threads at both ends have opposite rotation directions) can drive the two clamping members to move closer to and away from each other.

[0073] That is, by turning the handwheel 8, the worm 7 can be driven to rotate, and the worm 7 will drive the worm wheel 9 meshing with it to rotate, thereby controlling the double-headed screw 3 to rotate. The threads on the surface of the double-headed screw 3 will drive the first connecting rod 4 to slide along the inner wall of the slide groove 6, so that the clamping strip 5 gradually approaches the surface of the battery body 2, and the front and rear sides of the battery body 2 are clamped and fixed by the clamping strip 5, so that the battery body 2 and the main box body 1 remain relatively stable.

[0074] In the embodiment, the battery body 2 is placed inside the main box 1 to provide protection for the battery body 2. The heat dissipation holes 31 can be used to conveniently dissipate heat from the battery body 2. The top of the main box 1 is a detachable cover to facilitate the removal of the battery body 2.

[0075] In the embodiment, the first piston structure 241 includes a first piston rod 11 and a piston block 10, and the second piston structure 242 includes a second piston rod 13, an end block 16 and a first spring 17. The first spring 17 is arranged between the end block 16 and the hydraulic body 33, and is sleeved on the outside of the second piston rod 13.

[0076] In addition, the third clamping member 210 and the fourth clamping member can have the same structure, and both can be formed into a pressure strip 14. The first clamping member 110 and the second clamping member 120 can also have the same structure, and both the first clamping member 110 and the second clamping member 120 can include a first connecting rod 4 and a clamping strip 5 connected to each other. The number of the clamping strips 5 can be two, connected to both ends of a first connecting rod 4.

[0077] In addition, the first recess 410 and the second recess may both be, for example, a card slot 15 .

[0078] According to the battery pack provided in the embodiment of the present application, a hydraulic body 33 is fixedly connected to the bottom of the inner wall of the main housing 1. The interior of the hydraulic body 33 is filled with hydraulic oil. A piston block 10 is slidably connected to the inner wall of the hydraulic body 33, and a first piston rod 11 is fixedly connected to the side of the piston block 10. In the embodiment, the first piston rod 11 is movably connected to the hydraulic body 33, so that it can be retracted into the hydraulic body 33 and extended from the hydraulic body 33.

[0079] In the embodiment, one end of the first piston rod 11 is fixedly connected to the second connecting rod 12, and the second connecting rod 12 is fixedly connected to the first connecting rod 4 as an intermediate connection structure between the first connecting rod 4 and the first piston structure 241. In the embodiment, there are two first piston structures 241, corresponding to the first clamping member 110 and the second clamping member 120, respectively. Here, the number of second connecting rods is also the same, and will not be repeated here.

[0080] In the embodiment, the second piston rod 13 is movably connected to the side of the hydraulic body 33 close to the battery body 2 , so that the second piston rod 13 can be retracted into the hydraulic body 33 and can also be extended from the hydraulic body 33 .

[0081] In the embodiment, one end of the second piston rod 13 is fixedly connected to a pressure strip 14 , a slot 15 is provided on the surface of the battery body 2 , and an inner wall of the slot 15 is movably engaged with the pressure strip 14 .

[0082] In the embodiment, the other end of the second piston rod 13 is fixedly connected to the end block 16, the surface of the end block 16 is fixedly connected to the first spring 17, and the end of the first spring 17 is fixedly connected to the inner wall of the hydraulic body 33. Although the connection relationship between the two is not shown in the figure, it can be understood that the accompanying drawings are schematic diagrams to illustrate the connection relationship and relative position relationship between the two, and the fixed connection between the end of the first spring 17 and the inner wall of the hydraulic body 33 is still subject to the text description here.

[0083] In the embodiment, when the first connecting rod 4 moves, it will synchronously drive the second connecting rod 12 to move, the second connecting rod 12 will drive the first piston rod 11 to move, and the first piston rod 11 will drive the piston block 10 to move. The piston block 10 will squeeze the hydraulic oil inside the hydraulic body 33, so that the hydraulic oil gathers in the middle of the hydraulic body 33. The hydraulic oil will push the end block 16 to move, and then drive the second piston rod 13 and the pressure strip 14 to move, so that the pressure strip 14 is stuck in the inner wall of the card slot 15, thereby clamping and limiting the left and right sides of the battery body 2.

[0084] On the contrary, in the process of releasing the clamping of the two groups of first connecting rods 4 and clamping strips 5, the first piston rod 11 and the piston block 10 will be driven to reset, and the hydraulic oil storage space will become larger. At this time, under the elastic force of the first spring 17, the end block 16 and the second piston rod 13 will be pushed to move, thereby driving the pressure strip 14 to reset, so that the pressure strip 14 is separated from the inner wall of the card slot 15, and the limit on the battery body 2 can be released.

[0085] According to the battery box provided in the embodiment of the present application, the structure of the buffer mechanism will be described in detail below.

[0086] In an embodiment, the direct buffer assembly 310 includes a connecting assembly 510 and an elastic member 520, wherein the connecting assembly 510 includes a guide column 19, a connecting rod 20 and a reinforcing rod 32, and the elastic member 520 can be, for example, a second spring 21. The connection relationship between these components will be described in detail below.

[0087] In the embodiment, a bottom plate 18 of a buffer mechanism is provided below the main box body 1, and a guide column 19 of a direct buffer assembly 310 is fixedly connected to the top surface of the bottom plate 18, and a connecting rod 20 of the direct buffer assembly 310 is slidably connected to the surface of the guide column 19. A second spring 21 of the direct buffer assembly 310 is fixedly connected between the connecting rod 20 and the bottom plate 18, and there are two connecting rods 20, and two reinforcing rods 32 of the direct buffer assembly 310 are fixedly connected between the two connecting rods 20.

[0088] In an embodiment, the indirect buffer assembly 320 includes a conversion assembly 610 and a hydraulic buffer structure 620. The conversion assembly 610 includes a support shaft 22, a rotating plate 23 and a movable plate 24. The hydraulic buffer structure 620 can be, for example, a damping rod 26. The connection relationship between these components will be described in detail below.

[0089] In an embodiment, the support shaft 22 of the indirect buffer assembly 320 is fixedly connected between the two reinforcing rods 32 of the direct buffer assembly 310, and the surface of the support shaft 22 is rotatably connected to the rotating plate 23 of the indirect buffer assembly 320 (for example, the rotating plate 23 has a through hole for the support shaft 22 to pass through, thereby realizing the hinged connection between the two).

[0090] In this embodiment, the end of the rotating plate 23 is pivotally connected (i.e., hingedly connected) to the movable plate 24, which houses the indirect buffer assembly 320. A limit slot 25 is defined in the center of the base plate 18. The base plate 18 essentially comprises a strip-shaped through-hole. The two side walls of this through-hole, along the width of the base plate, each have a limit slot 25. The ends of the base plate 18 are inserted into the two limit slots 25, allowing them to slide along them. In this embodiment, two such strip-shaped through-holes can be provided, corresponding to two sets of rotating plates 23, movable plates 24, and support shafts 22. These two sets are symmetrically arranged to ensure balanced force on the direct buffer assembly 310.

[0091] In the embodiment, as described above, the inner wall of the limit groove 25 is slidably connected to the end of the movable plate 24. In addition, the direct buffer assembly 310 may also include a bearing column 27 and a base 28. The four corners of the bottom surface of the main box body 1 are fixedly connected to the bearing column 27. The bottom end of the bearing column 27 is fixedly sleeved with a retaining ring 29. The end of the connecting rod 20 is fixedly connected to the base 28, and the inner wall of the base 28 is slidably connected to the surface of the retaining ring 29. The inner wall of the base 28 is fixedly connected to the rubber ring 30. When the main box body 1 vibrates in the horizontal plane, it will drive the bearing column 27 to move, and the bearing column 27 will drive the retaining ring 29 to move along the inner wall of the base 28, thereby squeezing the rubber ring 30. The rubber ring 30 can be used to buffer the vibration of the retaining ring 29, thereby alleviating the vibration in the horizontal plane direction. In addition, in the embodiment, two bases 28 are connected to both ends of each connecting rod 20.

[0092] In the embodiment, as described above, when vertical vibration occurs, the main box body 1 will drive the bearing column 27, the base 28 and the connecting rod 20 to vibrate up and down, and the connecting rod 20 will slide along the surface of the guide column 19, thereby driving the second spring 21 to undergo elastic deformation, and the second spring 21 is used to buffer the vibration, and the reinforcing rod 32 will push the support shaft 22 to move in the vertical direction, thereby driving the rotating plate 23 to rotate, and the end of the rotating plate 23 will push the movable plate 24 to slide along the inner wall of the limit groove 25, and the damping rod 26 of the indirect buffer assembly 320 can be used to damp and buffer the movement of the movable plate 24. The damping rod is connected between the movable plate 24 and the inner wall of the strip through hole of the bottom plate 18, and is arranged along the length direction of the bottom plate 18. The damping rod can be retracted and retracted. As an example, it can be an oil pressure buffer, so as to achieve buffering of vibration in the vertical direction.

[0093] The battery box provided according to the embodiments of the present application has the following advantages:

[0094] Firstly, the front, rear, left and right sides of the battery body 2 are clamped and fixed by the clamping strip 5 and the pressure strip 14. By utilizing the double-headed screw 3, the first connecting rod 4, the worm 7, the worm gear 9 and other structures as well as the cooperation of the hydraulic oil, the piston block 10 and other related structures, the battery body 2 can be stably fixed in the main box 1 to prevent the battery body 2 from being displaced or loosened due to vibration during driving, thereby avoiding problems such as poor contact and short circuit caused by the instability of the battery body 2, and ensuring the driving safety of new energy vehicles and the stable power supply of the battery.

[0095] Secondly, the base plate 18, guide post 19, connecting rod 20, second spring 21, reinforcing rod 32, support shaft 22, rotating plate 23, movable plate 24, limiting slot 25, and damping rod 26 structures are configured to effectively buffer vertical vibrations. When the vehicle encounters vertical vibrations caused by bumps on the road or other conditions during driving, the connecting rod 20 slides along the guide post 19, causing the second spring 21 to elastically deform and provide buffering. Simultaneously, the reinforcing rod 32, support shaft 22, rotating plate 23, movable plate 24, and damping rod 26 cooperate to further enhance the shock absorption effect, reduce the impact of vibration on the battery body 2, and reduce the risk of wear and damage to internal battery components due to vibration, thereby extending the battery life and improving the performance and reliability of the vehicle.

[0096] Thirdly, the structural design of the bearing columns 27, retaining rings 29, base 28, and rubber rings 30 at the four corners of the bottom surface of the main housing 1 effectively mitigates horizontal vibrations. During vehicle operation, horizontal vibrations generated by cornering, braking, and other conditions are mitigated by the bearing columns 27 driving the retaining rings 29 along the inner wall of the base 28, squeezing the rubber rings 30 to provide a buffer. This prevents damage to the battery body 2 from such horizontal vibrations, ensuring battery stability under various driving conditions and enhancing the stability and safety of new energy vehicles.

[0097] Fourthly, heat dissipation holes 31 are provided on the surface of the main box 1. During the operation of the battery, the heat generated by the battery can be dissipated in time to avoid overheating of the battery and maintain the battery operating within an appropriate temperature range, which is beneficial to improving the battery's charge and discharge performance, energy density and cycle life. At the same time, it also helps to ensure the safety of the battery and prevent dangerous situations such as thermal runaway caused by battery overheating.

[0098] Fifthly, the top of the main box 1 features a removable cover, making installation, maintenance, and replacement of the battery body 2 more convenient and quick. When the battery needs to be repaired, replaced, or upgraded, the battery body 2 can be easily removed by simply removing the cover, eliminating the need for complex disassembly of the entire battery box. This significantly improves maintenance efficiency and reduces maintenance costs. It also facilitates inspection and cleaning of the battery box's internal structure, ensuring long-term stable operation.

[0099] Sixth, the overall structural design is compact and rational, with close coordination between components and stable operation. While achieving battery fixation, vibration reduction, and heat dissipation, the battery box's structural strength and reliability are guaranteed, adapting to the diverse and complex operating conditions of new energy vehicles. This provides a strong guarantee for the vehicle's stable operation and the reliable operation of the battery.

[0100] A second aspect of the present application provides a vehicle, which includes a battery box as described above. The vehicle may be, for example, a new energy vehicle, such as a new energy bus, and the battery box provides power for the new energy bus to travel.

[0101] The above are only preferred embodiments of the present application and do not limit the scope of protection of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings under the innovative concept of the present application, or direct / indirect application in other related technical fields are included in the scope of protection of the present application.

Claims

1. A battery box, characterized in that: The battery box includes: A main box body, wherein the main box body has a cavity; a battery body, the battery body being disposed in the cavity; a first clamping assembly, the first clamping assembly comprising a first clamping member and a second clamping member opposite to each other in a first horizontal direction, the first clamping assembly being configured to approach each other in the first horizontal direction under the driving force of an external force to clamp the battery body; a second clamping assembly, the second clamping assembly being linked to the first clamping assembly, the second clamping assembly comprising a third clamping member and a fourth clamping member facing each other in a second horizontal direction perpendicular to the first horizontal direction, the second clamping assembly being configured to cause the third clamping member and the fourth clamping member to synchronously clamp the battery body when the first clamping member and the second clamping member clamp the battery body; The second clamping assembly includes a first linkage assembly and a second linkage assembly, both of which are hydraulic linkage assemblies. The first linkage assembly and the second linkage assembly are connected to the first clamping member and the second clamping member, respectively. The first clamping member and the second clamping member apply force to the first linkage assembly and the second linkage assembly, respectively, so that the first linkage assembly and the second linkage assembly apply force to the third clamping member and the fourth clamping member, respectively. Wherein, the hydraulic linkage assembly includes: a first piston structure, wherein the first piston structure is used to withstand external force; a hydraulic body, the first piston structure being movably connected to the hydraulic body, and the hydraulic body storing a hydraulic medium; a second piston structure, the second piston structure being movably connected to the hydraulic body, the second piston structure being used to apply force to the battery body; The first piston structure includes a first piston rod and a piston block, and the second piston structure includes a second piston rod, an end block and a first spring. The first spring is arranged between the end block and the hydraulic body and is sleeved on the outside of the second piston rod. Wherein, when the first clamping member and the second clamping member move, they will synchronously drive the first piston rod to move, so that the first piston rod drives the piston block to move, and the piston block squeezes the hydraulic medium inside the hydraulic body, so that the hydraulic medium gathers in the middle of the hydraulic body, and then the hydraulic medium pushes the end block to move, so that the second piston rod of the first linkage assembly drives the third clamping member, and the second piston rod of the second linkage assembly drives the fourth clamping member, thereby limiting the position of the battery body; The battery box further includes a buffer mechanism, which is connected to the main box body and is disposed below the main box body. The buffer mechanism is used to buffer the vertical movement of the main box body.

2. The battery box according to claim 1, characterized in that: The first clamping member and the second clamping member are both U-shaped structures, and are both slidably connected to the main box body. The first clamping member and the second clamping member are both partially inserted into the bottom wall of the main box body.

3. The battery box according to claim 1, characterized in that: The outer side of the battery body has a first recess matched with the third clamping member and a second recess matched with the fourth clamping member.

4. The battery box according to claim 1, characterized in that: The buffer mechanism includes a direct buffer assembly connected to the main box body and an indirect buffer assembly connected to the direct buffer assembly.

5. The battery box according to claim 4, characterized in that: The direct buffer component is an elastic buffer component, and the indirect buffer component is a hydraulic buffer component.

6. The battery box according to claim 4, characterized in that: The direct buffer assembly includes a connecting assembly connected to the main box body and an elastic member disposed below the connecting assembly for supporting the connecting assembly, wherein the elastic member is deformable in the vertical direction.

7. The battery box according to claim 4, characterized in that: The indirect buffer assembly includes a conversion assembly that converts the movement of the direct buffer assembly in the vertical direction into movement in the second horizontal direction. The indirect buffer assembly also includes a hydraulic buffer structure connected to the conversion assembly. The hydraulic buffer structure is arranged on one side of the conversion assembly in the second horizontal direction. The hydraulic buffer structure is used to buffer the movement of the conversion assembly in the second horizontal direction.

8. A vehicle, characterized in that: The vehicle includes the battery box according to any one of claims 1 to 7.

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