Battery box bottom support

Abstract

The invention relates to the technical field of battery boxes, in particular to a battery box bottom support which comprises a frame assembly, a guide assembly and an energy transmission assembly. The frame assembly comprises a long beam unit and a short beam unit. The long beam unit comprises a first long beam and a second long beam. The short beam unit comprises a first short beam. The two second long beams are arranged in a closed frame formed by connecting the two first short beams and the two first long beam units end to end. The two ends of the second long beam are connected with the two first short beams respectively. The second long beams and the first long beams are arranged at intervals. One end of each guide assembly is arranged in a reinforcing space formed by the interval space between the corresponding second long beam and the adjacent first long beam, and the other end of each guide assembly extends out of the bearing face of the corresponding first long beam. The bearing face is perpendicular to the axis of the closed frame. One end of the guide assembly is connected with the first long beam and the second long beam. The energy transmission assembly is connected with the frame assembly. Therefore, the problem that the guide component on the battery box bottom support is easy to damage is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery boxes, and in particular to a battery box base. Background Art

[0002] With the advancement of technology, new energy vehicles are becoming increasingly popular due to their energy-saving and environmentally friendly features. These vehicles are often equipped with battery packs, which provide the vehicle with driving energy. To extend the vehicle's range, battery packs typically have a large capacity, resulting in heavy weight and bulk.

[0003] When the battery box is installed on a vehicle, its electrical interface needs to connect to the electrical connector on the vehicle's battery box base. However, due to positioning accuracy and assembly equipment errors during installation, a guide device is often required on the vehicle base to guide the battery box's electrical interface to the electrical connector on the vehicle base to prevent damage to the electrical connection components. Due to the large size and weight of the battery box, the guide device is subject to significant impact during this process, making it susceptible to damage after prolonged operation. Summary of the Invention

[0004] In order to solve the problem that the guide assembly on the battery box bottom bracket is easily damaged, the present invention provides a battery box bottom bracket, comprising:

[0005] A frame assembly, comprising a long beam unit and a short beam unit; the long beam unit comprising a first long beam and a second long beam; the short beam unit comprising a first short beam; two first long beams being spaced apart; two first short beams and two first long beam units being connected end to end to form a closed frame; two second long beams being disposed within the closed frame; two ends of the second long beam being respectively connected to the two first short beams; the second long beam being spaced apart from the first long beam; and the space between the second long beam and the adjacent first long beam being configured as a reinforcement space;

[0006] a guide assembly, one end of which is disposed in the reinforced space and the other end of which extends beyond the load-bearing surface of the first long beam; the load-bearing surface is perpendicular to the axis of the closed frame; one end of the guide assembly is connected to the first long beam and the second long beam respectively;

[0007] An energy transmission component is connected to the frame component.

[0008] In some embodiments, the guide assembly includes a first guide unit; the first guide unit includes a first guide column, a first inclined portion, and a second inclined portion; one end of the first guide column is arranged in the reinforced space, and the other end extends out of the load-bearing surface; the first inclined portion, the second inclined portion are connected to the end of the first guide column away from the first long beam; the cross-sectional area of ​​the first inclined portion gradually decreases along the extension direction of the first guide column; the cross-sectional area of ​​the second inclined portion gradually decreases along the extension direction of the first guide column; the angle between the side of the first inclined portion away from the first guide column and the side of the second inclined portion away from the first guide column is less than 180°.

[0009] In some embodiments, the guide assembly includes a plurality of second guide columns; one end of the second guide column is arranged in the reinforced space, and the other end extends out of the load-bearing surface of the first long beam; the length of the second guide column extending out of the load-bearing surface is less than the length of the first guide unit extending out of the load-bearing surface.

[0010] In some embodiments, the number of second guide columns in the reinforced space on one side of the closed frame is greater than the number of second guide columns in the reinforced space on the other side; or, when the number of second guide columns in the reinforced spaces on both sides of the closed frame is the same, the distance between at least two adjacent second guide columns in the reinforced space on one side is greater than the distance between two adjacent second guide columns in the reinforced space on the other side.

[0011] In some embodiments, the short beam unit further includes a second short beam; the second short beam is arranged between two second long beams; one end of the second short beam is connected to one side of one second long beam, and the other end is connected to one side of another second long beam.

[0012] In some embodiments, the short beam unit further includes a third short beam; the third short beam is arranged in the reinforcement space; one end of the third short beam is connected to one side of one of the first long beams, and the other end is connected to one side of the second long beam close to the first long beam.

[0013] In some embodiments, the energy transmission component includes a support seat, a floating part, and an electrical connection part; the floating part is connected to the support seat; the electrical connection part is connected to the floating part; the support seat is connected to the second long beam; when the electrical connection part is subjected to external force, it drives the floating part to deform, so that the electrical connection part moves relative to the support seat.

[0014] In some embodiments, the battery box base further includes a buffer assembly; the buffer assembly includes a buffer unit; the buffer unit is made of an elastic material; and the buffer unit is disposed on the load-bearing surface.

[0015] In some embodiments, the load-bearing surface includes a side surface of the first long beam and a side surface of the first short beam; the thickness of the buffer unit arranged on the first short beam is greater than the thickness of the buffer unit arranged on the first long beam.

[0016] In some embodiments, the guide assembly also includes a locking unit; the locking unit includes a driving part, a sliding rod, and a locking head; the driving part is connected to the first guide column; one end of the sliding rod is connected to the driving part, and the other end is connected to the locking head; the sliding rod is slidably connected to the first guide column; the driving part drives the locking head to move between a locked state and a released state; wherein, the locked state includes the projection of the locking head along the axis direction of the closed frame coinciding with the first long beam and / or the first short beam.

[0017] In some embodiments, the lock head includes a lock body, a first locking part, and a second locking part; one end of the lock body is connected to the first locking part and the second locking part, and the other end is connected to the sliding rod; the first locking part and the second locking part are symmetrically arranged on the circumference of the lock body; the locking state includes a first locking state or a second locking state; wherein, the first locking state includes the first locking part facing the load-bearing surface, and the angle between the side of the first locking part close to the load-bearing surface and the load-bearing surface is a first angle; the second locking state includes the second locking part facing the load-bearing surface, and the angle between the side of the second locking part close to the load-bearing surface and the load-bearing surface is a second angle; the first angle is smaller than the second angle.

[0018] In some embodiments, the driving unit is configured to be any one of hydraulic drive, pneumatic drive, and electric drive.

[0019] In order to solve the problem that the guide assembly on the battery box bottom bracket is easily damaged, the present invention has the following advantages:

[0020] The guide assembly is arranged in the reinforced space formed by the first long beam and the second long beam, and is respectively connected to the first long beam and the second long beam. When the battery box and the battery box base are assembled, the battery box and the outer peripheral wall of the guide assembly away from the end of the first long beam can slide relative to the battery box and move toward the load-bearing surface. During the movement, the battery box applies a force to the guide assembly. The first long beam and the second long beam can support the guide assembly at the same time and share the force from the battery box for the guide assembly, thereby extending the service life of the guide assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a battery box bottom support according to an embodiment is shown;

[0022] Figure 2A schematic diagram of a battery box base support in another embodiment is shown;

[0023] Figure 3 A schematic diagram of a battery box base support in another embodiment is shown;

[0024] Figure 4 A schematic diagram of a battery box base support in another embodiment is shown.

[0025] Figure markings: 01 frame assembly; 11 long beam unit; 111 first long beam; 112 second long beam; 12 short beam unit; 121 first short beam; 122 second short beam; 123 third short beam; 13 bottom plate; 02 guide assembly; 21 first guide unit; 211 first guide column; 212 first inclined portion; 213 second inclined portion; 22 second guide column; 23 locking unit; 231 driving portion; 232 locking head; 2321 lock body; 2322 first locking portion; 2323 second locking portion; 03 energy transmission assembly; 31 support seat; 32 floating portion; 33 electrical connection portion; 04 buffer assembly; 41 support pad; 42 buffer unit. DETAILED DESCRIPTION

[0026] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the present disclosure, rather than to imply any limitation on the scope of the present disclosure.

[0027] As used herein, the term "including" and its variations are to be interpreted as open-ended terms meaning "including, but not limited to." The term "based on" is to be interpreted as "based, at least in part, on." The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment." The term "another embodiment" is to be interpreted as "at least one other embodiment." Terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "vertical," "horizontal," "transverse," and "longitudinal" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily intended to better describe the present application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationships. For example, the term "on" may, in certain circumstances, be used to indicate a dependency or connection relationship. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" are to be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0028] In this embodiment, during the assembly process of the battery box and the battery box base on the vehicle (the assembly process can be based on the completion of the connection between the vehicle and the battery box base, and the battery box is moved to the battery box base, thereby realizing the process of replacing the battery box on the vehicle, that is, the battery replacement process; the assembly process can also be the process of assembling the battery box and the battery box base and performing an adaptation test), the guide device on the battery box base can allow the electrical interface of the battery box to be electrically connected to the battery box base when there is a certain error in the relative position of the battery box and the base, thereby completing the assembly. However, the battery box is heavy and large in size, and the guide device and the battery box are easily damaged by collision. In order to solve the above problems, a battery box base is proposed. Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown, the battery box base can include a frame component 01, a guide component 02, and an energy transmission component 03. The frame component 01 can include a long beam unit 11 and a short beam unit 12; the long beam unit 11 can include a first long beam 111 and a second long beam 112; the short beam unit 12 can include a first short beam 121; the two first long beams 111 can be arranged at intervals; one end of the first long beam 111 in the longitudinal direction can be connected to a first short beam 121, and the other end in the longitudinal direction can be connected to another first short beam 121; one end of the first short beam 121 in the longitudinal direction can be connected to a first long beam 111, and the other end in the longitudinal direction can be connected to another first long beam 111. Thereby, the two first short beams 121 and the two first long beams 111 units 11 are connected end to end to form a closed frame. When the battery box and the battery box base are assembled, the closed frame can be used to support the battery box; the two second long beams 112 can be arranged in the closed frame; the two ends of the second long beam 112 can be respectively connected to the two first short beams 121, so as to improve the strength of the battery box base; the second long beam 112 can be spaced apart from the first long beam 111; the spacing space between the second long beam 112 and the adjacent first long beam 111 can be set as a reinforced space.

[0029] One end of the guide assembly 02 can be set in the reinforced space, and the other end extends out of the load-bearing surface of the first long beam 111; the load-bearing surface can be perpendicular to the axis of the closed frame; when the battery box and the battery box base are assembled, the outer peripheral wall of the battery box and the guide assembly 02 away from the first long beam 111 can slide relative to the battery box and move closer to the load-bearing surface, so that when there is an error in the relative position of the battery box and the battery box base along the direction of the load-bearing surface, the battery box can also move to abut against the load-bearing surface, thereby completing the assembly of the battery box and the battery box base. One end of the guide assembly 02 can be connected to the first long beam 111 and the second long beam 112 respectively, so that the first long beam 111 and the second long beam 112 can support the guide assembly 02 and share the force applied to the guide assembly 02 by the battery box, thereby extending the service life of the guide assembly 02.

[0030] The energy transmission component 03 can be connected to the frame component 01. When the battery box and the battery box base are assembled, the electrical interface on the battery box can be electrically connected to the energy transmission component 03, thereby realizing the transmission of electrical energy.

[0031] In other embodiments, the frame assembly 01 may further include a bottom plate 13. The bottom plate 13 may be connected to the side of the long beam unit 11 away from the load-bearing surface. When the battery box and the battery box base are assembled, the bottom plate 13 may prevent foreign objects from hitting the battery box.

[0032] In this embodiment, if Figure 1 、 Figure 2As shown, the guide assembly 02 may include a first guide unit 21. The first guide unit 21 may include a first guide column 211, a first inclined portion 212, and a second inclined portion 213. One end of the first guide column 211 may be disposed within the reinforced space and connected to the first long beam 111 and the second long beam 112, respectively. This allows the first long beam 111 and the second long beam 112 to respectively support the first guide column 211 and share the forces acting on the first guide column 211, thereby increasing the service life of the first guide column 211. The other end of the first guide column 211 may extend beyond a load-bearing surface. The first inclined portion 212 and the second inclined portion 213 may respectively be connected to the end of the first guide column 211 away from the first long beam 111. The cross-sectional area of ​​the first inclined portion 212 along the load-bearing surface may gradually decrease along the extension direction of the first guide column 211. The cross-sectional area of ​​the second inclined portion 213 along the load-bearing surface may gradually decrease along the extension direction of the first guide column 211. The angle between the side of the first inclined portion 212 away from the first guide column 211 and the side of the second inclined portion 213 away from the first guide column 211 can be less than 180°. The first inclined portion 212 and the second inclined portion 213 can allow the end of the first guide unit 21 away from the load-bearing surface to present two inclined surfaces in different directions. When the battery box moves toward the load-bearing surface, when there is a certain error in the relative position of the battery box and the battery box base along the length direction of the long beam unit 11 and the length direction of the short beam unit 12, the battery box can abut and slide with the first inclined portion 212 and / or the second inclined portion 213, so that the relative error between the battery box and the battery box base is gradually reduced, so that the battery box can move smoothly to abut against the load-bearing surface to complete the assembly, which can reduce the requirements for assembly accuracy and achieve the effect of reducing costs.

[0033] In this embodiment, if Figure 1As shown, the guide assembly 02 can include multiple second guide posts 22. One end of each second guide post 22 can be positioned within the reinforced space and connected to the first long beam 111 and the second long beam 112, respectively. This allows the first long beam 111 and the second long beam 112 to support the second guide post 22 and share the forces acting on the second guide post 22, thereby increasing the service life of the second guide post 22. The other end of the second guide post 22 can extend beyond the load-bearing surface of the first long beam 111. The cross-sectional area of ​​the second guide column 22 along the load-bearing surface can gradually decrease along the extension direction of the second guide column 22, so that the second guide column 22 forms a cone or a frustum, and the length of the second guide column 22 extending out of the load-bearing surface can be less than the length of the first guide unit 21 extending out of the load-bearing surface. When the battery box moves toward the load-bearing surface, if there is a certain error in the relative position of the battery box and the battery box base along the load-bearing surface, the first guide unit 21 can first correct the relative position of the battery box and the battery box base, so that the components that match the battery box and the second guide column 22 can move along the load-bearing surface toward the central axis of the second guide column 22; when the battery box slides toward the load-bearing surface on the outer peripheral surface of the second guide column 22, the relative position error of the electrical interface of the battery box and the energy transmission component 03 along the load-bearing surface can be reduced, so that the electrical interface of the battery box can move smoothly to be electrically connected with the energy transmission component 03.

[0034] In this embodiment, if Figure 2 As shown, the number of second guide posts 22 in the reinforced space on one side of the closed frame can be greater than the number of second guide posts 22 in the reinforced space on the other side; alternatively, if the number of second guide posts 22 in the reinforced spaces on both sides of the closed frame is the same, the spacing between at least two adjacent second guide posts 22 in the reinforced space on one side can be greater than the spacing between two adjacent second guide posts 22 in the reinforced space on the other side. This arrangement allows the first and second guide posts 211, 22 to be inserted into the corresponding positions of the battery box only when the orientation of the battery box and the battery box base are aligned, thereby allowing the battery box's electrical interface to be electrically connected to the energy transmission component 03, reducing the error rate during assembly and achieving the goal of improving assembly efficiency.

[0035] In this embodiment, if Figure 2 As shown, the short beam unit 12 can also include a second short beam 122; the second short beam 122 can be arranged between the two second long beams 112; one end of the second short beam 122 can be connected to one side of a second long beam 112, and the other end can be connected to one side of another second long beam 112, so that the second short beam 122 can strengthen the strength of the battery box bottom support and reduce the deformation of the battery box bottom support during use.

[0036] Based on the fact that the battery box bottom support is provided with a second short beam 122, the second long beam 112 can be divided into multiple sections. One end of a portion of the second long beam 112 is connected to one side of the second short beam 122, and the other end is connected to the first short beam 121. One end of another portion of the second long beam 112 is connected to the other side of the second short beam 122, and the other end is connected to another first short beam 121. This arrangement can reduce the processing waste of the second long beam 112 when manufacturing the frame assembly 01. For example: when the length of the battery box bottom support is 2.5 meters, the profiles on the market are usually 6 meters each. After processing two 2.5-meter materials from the profile, there will be 1 meter of waste left. Multiple wastes can be used as the second long beam 112, thereby reducing waste when manufacturing the frame assembly 01.

[0037] In this embodiment, if Figure 2 As shown, the short beam unit 12 may further include a third short beam 123; the third short beam 123 may be disposed within the reinforced space, improving space utilization within the reinforced space and making the frame assembly 01 compact. One end of the third short beam 123 may be connected to one side of a first long beam 111, and the other end may be connected to one side of a second long beam 112 adjacent to the first long beam 111. This allows the relative positions of the first long beam 111 at one end of the third short beam 123 and the second long beam 112 at the other end of the third short beam 123 to remain fixed, preventing the guide assembly 02 from tilting after the force applied thereto is transmitted, thereby improving the strength of the battery box base.

[0038] In other embodiments, the third short beam 123 may also abut or connect with the guide assembly 02 , so that the third short beam 123 , the first long beam 111 , and the second long beam 112 simultaneously support the guide assembly 02 , thereby increasing the strength of the guide assembly 02 .

[0039] In this embodiment, if Figure 1 As shown, the energy transmission component 03 may include a support seat 31, a floating part 32, and an electrical connection part 33; the floating part 32 may be connected to the support seat 31; the electrical connection part 33 may be connected to the floating part 32; the support seat 31 may be connected to the second long beam 112; when the electrical connection part 33 is subjected to external force, it can drive the floating part 32 to deform, so that the electrical connection part 33 can move relative to the support seat 31. After the battery box is guided by the guide component 02, if the relative position of the electrical connection part 33 and the electrical interface of the battery box is still partially offset, the components near the electrical interface of the battery box can guide the electrical connection part 33 to be electrically connected to the electrical interface of the battery box, thereby making the assembly of the battery box and the battery box base smoother; when the frame component 01 and the guide component 02 are subjected to impact force, the floating part 32 can reduce the impact force transmitted to the electrical connection part 33, thereby ensuring the tightness of the connection between the electrical interface of the battery box and the electrical connection part 33.

[0040] In this embodiment, if Figure 1As shown, the battery box base can also include a buffer component 04; the buffer component 04 can include a buffer unit 42; the buffer unit 42 can be made of elastic material; the buffer unit 42 can be set on the load-bearing surface. When the battery box base and the battery box are assembled, the battery box and the buffer unit 42 are in contact with the side away from the frame component 01. The vibration generated during the driving of the vehicle can be weakened by the buffer unit 42, reducing the impact on the battery box, thereby extending the service life of the battery box.

[0041] In other embodiments, the buffer assembly 04 may further include a support pad 41. The support pad 41 may be provided on the load-bearing surface, and the thickness of the support pad 41 may be less than the thickness of the buffer unit 42. When the battery box and the battery box base are assembled, and the thickness of the buffer unit 42 is reduced by the compression of the battery box, the support pad 41 may abut against the battery box, support the weight of the battery box, reduce the pressure on the buffer unit 42, thereby extending the service life of the buffer unit 42 and slowing down the elastic attenuation of the buffer unit 42. When vibrations and bumps occur during driving, a gap will inevitably be generated between the battery box and the support pad 41. At this time, the buffer portion may continue to abut against the battery box to prevent the battery box from being damaged by excessive impact with the support base 31 when it falls, thereby extending the service life of the battery box.

[0042] In this embodiment, if Figure 1 As shown, the load-bearing surface may include the top surface of the first long beam 111 and the top surface of the first short beam 121; the thickness of the buffer unit 42 provided on the first short beam 121 may be greater than the thickness of the buffer unit 42 provided on the first long beam 111. Since the first short beam 121 is provided on both sides of the length direction of the first long beam 111, after the battery box base is installed on the vehicle, the length direction of the first long beam 111 is parallel to the width direction of the vehicle. In order to ensure that the weight of the vehicle is evenly distributed, the vehicle usually connects the middle part of the length direction of the first long beam 111 (i.e., the part of the first long beam 111 away from the first short beam 121). When the vehicle vibrates or bumps while driving, the deformation amplitude of the first short beam 121 will be greater than the middle part of the length direction of the first long beam 111. The buffer unit 42 on the first short beam 121 is relatively thick, which can continuously keep the buffer unit 42 in contact with the battery box, avoiding damage caused by excessive shaking of the battery box unit.

[0043] In this embodiment, if Figure 3 、 Figure 4As shown, the guide assembly 02 may further include a locking unit 23; the locking unit 23 may include a driving portion 231, a sliding rod, and a locking head 232; the driving portion 231 may be connected to the first guide column 211; one end of the sliding rod may be connected to the driving portion 231, and the other end may be connected to the locking head 232; the sliding rod may be slidably connected to the first guide column 211; the driving portion 231 may drive the locking head 232 to move between a locked state and a released state through the sliding rod; wherein, the locked state may include the projection of the locking head 232 along the axis direction of the closed frame coinciding with the first long beam 111 and / or the first short beam 121, and the released state may include the projection of the locking head 232 along the axis direction of the closed frame (the axis direction of the frame may be as shown in FIG. Figure 4 The projection of the battery box (in the left-right direction shown) is spaced apart from the first long beam 111 and / or the first short beam 121. When the battery box and the battery box base are spaced apart, the locking unit 23 can be in a released state. When the electrical interface of the battery box is electrically connected to the energy transmission component 03 and the battery box abuts the load-bearing surface, the driving unit 231 can be controlled to drive the lock head 232 from the released state to the locked state via the sliding rod, allowing the lock head 232 to be detachably connected to the battery box, thereby fixing the relative position of the battery box and the battery box base.

[0044] In this embodiment, if Figure 3 、 Figure 4The shown lock head 232 may include a lock body 2321, a first locking portion 2322, and a second locking portion 2323; one end of the lock body 2321 may be connected to the first locking portion 2322 and the second locking portion 2323, and the other end may be connected to the sliding rod; the first locking portion 2322 may be symmetrically arranged on the circumferential side of the lock body 2321; the locking state may include a first locking state or a second locking state; wherein, the first locking state may include the first locking portion 2322 facing the load-bearing surface, and the side of the first locking portion 2322 close to the load-bearing surface may have a minimum angle of the first angle with the load-bearing surface; the second locking state may include the second locking portion 2323 facing the load-bearing surface, and the side of the second locking portion 2323 close to the load-bearing surface may have a minimum angle of the second angle with the load-bearing surface; the first angle may be smaller than the second angle. When the battery box base is assembled with the vehicle and used for a short time, the frame assembly 01 has a small amount of deflection. When the battery box's electrical interface is electrically connected to the energy transmission assembly 03, the lock 232 is detachably connected to the battery box in the first locking state, and both the long beam unit 11 and the short beam unit 12 can abut against the battery box. When the battery box base is assembled with the vehicle and used for a long time, the frame assembly 01 has a large amount of deflection. When the battery box's electrical interface is moved to be electrically connected to the energy transmission assembly 03, there may be a gap between at least part of the frame assembly 01 and the battery box. At this time, during the process of the lock 232 moving from the loose state to the first locking state, the side of the second locking portion 2323 close to the load-bearing surface can abut and slide against the side of the battery box bottom frame away from the frame assembly 01, thereby gradually reducing the gap between the battery box and the frame assembly 01, allowing the battery box and the frame assembly 01 to abut, reducing the relative shaking of the battery box and the frame assembly 01, and achieving the effect of extending the service life of the battery box and the frame assembly 01.

[0045] In this embodiment, if Figure 3 、 Figure 4 The drive unit 231 shown can be configured as any of hydraulic, pneumatic, and electric drives, and can be flexibly selected based on the actual application scenario, precision requirements, cost requirements, and strength requirements. Hydraulic drive can be driven by a hydraulic cylinder. Pneumatic drive can be driven by an air cylinder. Electric drive can be driven by a motor driving a screw, which in turn drives a nut.

[0046] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and that in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.

Claims

1. A battery box base, characterized in that: The battery box bottom bracket includes: A frame assembly, comprising a long beam unit and a short beam unit; the long beam unit comprising a first long beam and a second long beam; the short beam unit comprising a first short beam; two first long beams being spaced apart; two first short beams and two first long beam units being connected end to end to form a closed frame; two second long beams being disposed within the closed frame; two ends of the second long beam being respectively connected to the two first short beams; the second long beam being spaced apart from the first long beam; and the space between the second long beam and the adjacent first long beam being configured as a reinforcement space; a guide assembly, one end of which is disposed in the reinforced space and the other end of which extends beyond the load-bearing surface of the first long beam; the load-bearing surface is perpendicular to the axis of the closed frame; one end of the guide assembly is connected to the first long beam and the second long beam respectively; An energy transmission component is connected to the frame component.

2. A battery box base according to claim 1, characterized in that: The guide assembly includes a first guide unit; the first guide unit includes a first guide column, a first inclined portion, and a second inclined portion; one end of the first guide column is arranged in the reinforced space, and the other end extends out of the load-bearing surface; the first inclined portion, the second inclined portion are connected to the end of the first guide column away from the first long beam; the cross-sectional area of ​​the first inclined portion gradually decreases along the extension direction of the first guide column; the cross-sectional area of ​​the second inclined portion gradually decreases along the extension direction of the first guide column; the angle between the side of the first inclined portion away from the first guide column and the side of the second inclined portion away from the first guide column is less than 180°.

3. The battery box base according to claim 2, characterized in that: The guide assembly includes multiple second guide columns; one end of the second guide column is arranged in the reinforced space, and the other end extends out of the load-bearing surface of the first long beam; the length of the second guide column extending out of the load-bearing surface is less than the length of the first guide unit extending out of the load-bearing surface.

4. A battery box base according to claim 3, characterized in that: The number of the second guide columns in the reinforcement space on one side of the closed frame is greater than the number of the second guide columns in the reinforcement space on the other side; or, when the number of the second guide columns in the reinforcement space on both sides of the closed frame is the same, the distance between at least two adjacent second guide columns in the reinforcement space on one side is greater than the distance between two adjacent second guide columns in the reinforcement space on the other side.

5. The battery box base according to claim 1, characterized in that: The short beam unit further includes a second short beam; the second short beam is arranged between the two second long beams; one end of the second short beam is connected to one side of one second long beam, and the other end is connected to one side of the other second long beam.

6. The battery box base according to claim 1, characterized in that: The short beam unit also includes a third short beam; the third short beam is arranged in the reinforcement space; one end of the third short beam is connected to one side of one of the first long beams, and the other end is connected to one side of the second long beam close to the first long beam.

7. The battery box base according to claim 1, characterized in that: The energy transmission component includes a support seat, a floating part, and an electrical connection part; the floating part is connected to the support seat; the electrical connection part is connected to the floating part; the support seat is connected to the second long beam; when the electrical connection part is subjected to external force, it drives the floating part to deform, so that the electrical connection part moves relative to the support seat.

8. The battery box base according to claim 1, characterized in that: The battery box base also includes a buffer assembly; the buffer assembly includes a buffer unit; the buffer unit is made of elastic material; and the buffer unit is arranged on the load-bearing surface.

9. The battery box base according to claim 8, characterized in that: The load-bearing surface includes a side surface of the first long beam and a side surface of the first short beam; the thickness of the buffer unit arranged on the first short beam is greater than the thickness of the buffer unit arranged on the first long beam.

10. The battery box base according to claim 2, characterized in that: The guide assembly also includes a locking unit; the locking unit includes a driving part, a sliding rod, and a locking head; the driving part is connected to the first guide column; one end of the sliding rod is connected to the driving part, and the other end is connected to the locking head; the sliding rod is slidably connected to the first guide column; the driving part drives the locking head to move between a locked state and a released state; wherein, the locked state includes the projection of the locking head along the axis direction of the closed frame coinciding with the first long beam and / or the first short beam.

11. The battery box base according to claim 10, characterized in that: The lock head includes a lock body, a first locking part, and a second locking part; one end of the lock body is connected to the first locking part and the second locking part, and the other end is connected to the sliding rod; the first locking part and the second locking part are symmetrically arranged on the circumference of the lock body; the locking state includes a first locking state or a second locking state; wherein, the first locking state includes the first locking part facing the load-bearing surface, and the angle between the side of the first locking part close to the load-bearing surface and the load-bearing surface is a first angle; the second locking state includes the second locking part facing the load-bearing surface, and the angle between the side of the second locking part close to the load-bearing surface and the load-bearing surface is a second angle; the first angle is smaller than the second angle.

12. The battery box base according to claim 10, characterized in that: The driving part is configured to be any one of hydraulic drive, pneumatic drive and electric drive.

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