A battery box base and a vehicle

Abstract

This utility model provides a battery box base and a vehicle. The battery box base includes a first frame, on which a guide mechanism, a locking mechanism, and a connector are provided. The guide mechanism is located at least on the edge of the first frame to guide the battery box onto the battery box base. The locking mechanism includes a locking seat, a locking hook, a connecting rod, and a driving component. The locking seat is located on the first frame, and the locking hook is rotatably connected to the locking seat. One end of the connecting rod is connected to the locking hook, and the other end is connected to the driving component. The driving component drives the connecting rod and the locking hook to rotate. During rotation, the connecting rod and the locking hook have a dead point position. When the connecting rod and the locking hook rotate to the dead point position, the locking hook engages with the battery box, locking the battery box. When the connecting rod and the locking hook disengage from the dead point position, the locking hook separates from the battery box, unlocking the battery box. This allows for rapid and stable positioning of the battery box, ensures accurate mating of the locking mechanism and the connector, and improves the connection strength between the battery box and the vehicle body.

Description

Technical Field

[0001] This application belongs to the field of vehicle technology, specifically relating to a battery box base and a vehicle. Background Technology

[0002] Currently, electric trucks mainly come in two types: charging and battery swapping. The battery box of a charging truck is generally completely fixed to the base. The battery box of a battery swapping truck is detachably mounted on the base; by removing the depleted battery box and replacing it with a fully charged one, the charging of the battery swapping truck can be completed conveniently and quickly.

[0003] The battery box needs to be frequently removed and placed, and each time it is installed, it must be repositioned and locked. However, the existing battery boxes require high positioning accuracy, which is time-consuming and labor-intensive during installation. Furthermore, the connection between the battery box and the base is not stable enough, and its resistance to impact and vibration is weak in bumpy environments. It is prone to wear and tear and its reliability decreases with long-term use. Utility Model Content

[0004] This utility model provides a battery box base and vehicle, aiming to solve the problems of inconvenient battery box installation and unstable connection in the prior art.

[0005] In a first aspect, embodiments of the present invention provide a battery box base, the battery box base including a first frame, the first frame being provided with a guide mechanism, a locking mechanism, and a connector; wherein...

[0006] The guiding mechanism is at least located at the edge of the first frame to guide the battery box onto the battery box base;

[0007] The locking mechanism includes a locking seat, a locking hook, a connecting rod, and a driving component. The locking seat is disposed on the first frame, and the locking hook is rotatably connected to the locking seat. One end of the connecting rod is connected to the locking hook, and the other end of the connecting rod is connected to the driving component. The driving component is used to drive the connecting rod and the locking hook to rotate. The connecting rod and the locking hook have a dead point position during rotation. When the connecting rod and the locking hook rotate to the dead point position, the locking hook engages with the battery box, and the battery box is locked. When the connecting rod and the locking hook disengage from the dead point position, the locking hook separates from the battery box, and the battery box is unlocked.

[0008] The connector is used for electrical connection with the battery box.

[0009] Optionally, the locking mechanism further includes a first rotating shaft and a second rotating shaft. The first rotating shaft is connected to the connecting rod. The locking seat is provided with a first sliding groove. The first rotating shaft passes through the first sliding groove and can slide along the first sliding groove under the drive of the driving member.

[0010] The locking hook is L-shaped and has a first end, a second end, and a bent portion. The bent portion is located between the first end and the second end. The second rotating shaft passes through the locking seat and the first end so that the first end is rotatably connected to the locking seat. The connecting rod is connected to the bent portion.

[0011] When the first rotating shaft slides into the first sliding groove, the first rotating shaft, the connecting rod, and the second end are on the same straight line, the connecting rod and the locking hook are at the dead point position, and the battery box is locked.

[0012] Optionally, the locking seat is disposed near the edge of the first frame, and the locking seat has a first guide plate on the side opposite to the center of the first frame. The first guide plate is inclined in the direction opposite to the first frame so that the battery box moves along the first guide plate.

[0013] Optionally, the number of the guiding mechanisms is multiple, and the multiple guiding mechanisms are divided into a first guiding mechanism and a second guiding mechanism; wherein,

[0014] The first guide mechanism is located at the edge of the first frame, and the first guide mechanism has a second guide plate on the side away from the center of the first frame. The second guide plate is inclined in the direction away from the first frame so that the battery box moves along the second guide plate.

[0015] The second guide mechanism is columnar and protrudes from the surface of the first frame. The second guide mechanism includes a positioning section and a first guide section connected along the axial direction. The positioning section is close to the first frame, and the first guide section is away from the first frame. The cross-sectional dimension of the positioning section decreases in the direction away from the first frame. The positioning section and the first guide section have the same dimension at the connection position.

[0016] Optionally, the connector includes a connector body and a fastener passing through the connector body and the first frame, the fastener including an elastic buffer.

[0017] Optionally, a plurality of buffer pads are symmetrically arranged on the first frame, and the plurality of buffer pads are divided into a first buffer pad and a second buffer pad, wherein the height of the first buffer pad is greater than the height of the second buffer pad.

[0018] Optionally, the plurality of buffer pads are divided into a first buffer pad, a second buffer pad, and a third buffer pad, wherein the third buffer pad is L-shaped, the third buffer pad is disposed at the corner of the first frame, and the third buffer pad is a steel pad.

[0019] Optionally, the battery box base further includes a second frame, the first frame being connected to the second frame, the first frame being used to connect the battery box, and the second frame being used to connect the vehicle body.

[0020] Optionally, a sensor is provided on the first frame for detecting the position of the battery box.

[0021] Secondly, this utility model embodiment also provides a vehicle including any of the battery box bases provided in the first aspect.

[0022] This utility model provides a battery box base, which includes a first frame with a guide mechanism, a locking mechanism, and a connector. The guide mechanism guides and positions the battery box, greatly reducing the precision requirements during installation and enabling rapid and stable positioning. It also ensures precise alignment of the locking mechanism and connector. The locking mechanism secures the battery box. During rotation, the connecting rod and locking hook have a dead point where the axial force transmission angle is zero, preventing rotation and ensuring the locking hook is firmly engaged with the bottom beam of the battery box. This prevents the battery box from detaching even under complex conditions, solving the problems of Z-axis runout and loosening after clamping.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a schematic diagram of the battery box base according to an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the locking mechanism according to an embodiment of the present utility model;

[0027] Figure 3 yes Figure 2 A cross-sectional view of the locking mechanism shown;

[0028] Figure 4 This is a schematic diagram of the first guiding mechanism according to an embodiment of the present utility model;

[0029] Figure 5 This is a schematic diagram of the battery box base and battery box installation according to an embodiment of the present utility model;

[0030] Figure 6 This is a schematic diagram of a connector according to an embodiment of the present utility model;

[0031] Figure 7 yes Figure 6 A schematic diagram of the fasteners for the connector shown;

[0032] Figure 8 This is a schematic diagram of the second frame according to an embodiment of the present utility model.

[0033] Reference numerals: 1: First frame; 11: First guide mechanism; 111: Second guide plate; 12: Second guide mechanism; 121: Positioning section; 122: First guide section; 123: Second guide section; 13: Locking mechanism; 131: Locking seat; 1311: First slide groove; 1312: First guide plate; 132: Locking hook; 133: Connecting rod; 134: Driving component; 135: First rotating shaft; 136: Second rotating shaft; 137: Hall sensor; 14: Connector; 141: Connector body ; 142: Fastener; 1421: Locating pin; 1422: Elastic buffer; 1423: Locating bushing; 1424: Flat washer; 1425: Slotted nut; 1426: Cotter pin; 143: Cable; 15: Buffer pad; 151: First buffer pad; 152: Second buffer pad; 153: Third buffer pad; 16: Sensor; 2: Second frame; 21: First connecting seat; 22: Second connecting seat; 3: Battery box; 31: Battery box connector; 32: Guide groove; 4: Vehicle end beam. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the fixed scope of the present utility model.

[0035] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0036] This utility model embodiment provides a battery box base, which includes a first frame 1. The first frame 1 is provided with a guide mechanism, a locking mechanism 13, and a connector 14. The guide mechanism is at least located at the edge of the first frame 1 to guide the battery box 3 onto the battery box base. The locking mechanism 13 includes a locking seat 131, a locking hook 132, a connecting rod 133, and a driving member 134. The locking seat 131 is located on the first frame 1, the locking hook 132 is rotatably connected to the locking seat 131, and one end of the connecting rod 133... One end of the connecting rod 133 is connected to the locking hook 132, and the other end of the connecting rod 133 is connected to the driving component 134. The driving component 134 is used to drive the connecting rod 133 and the locking hook 132 to rotate. The connecting rod 133 and the locking hook 132 have a dead point position during rotation. When the connecting rod 133 and the locking hook 132 rotate to the dead point position, the locking hook 132 is engaged with the battery box 3, and the battery box 3 is locked. When the connecting rod 133 and the locking hook 132 are disengaged from the dead point position, the locking hook 132 is separated from the battery box 3, and the battery box 3 is unlocked. The connector 14 is used to electrically connect with the battery box 3.

[0037] like Figure 1 As shown, the first frame 1 is composed of multiple welded steel beams, using high-strength steel, resulting in high structural strength and strong resistance to damage. The first frame 1 is fixedly connected to the vehicle body at the bottom and to the battery box 3 at the top. When replacing the battery box 3, the battery box 3 to be removed is lifted out from the top of the first frame 1, and the new battery box 3 is lifted and installed on the first frame 1 from the top.

[0038] The first frame 1 is equipped with a guide mechanism for positioning the battery box 3. The dimensions of the first frame 1 and the battery box 3 are matched according to actual installation needs, with the outer edge of the battery box 3 aligned with the outer edge of the first frame 1 to maximize the use of installation space and increase the capacity of the battery box 3. Therefore, the guide mechanism is located at least on the outer edge of the first frame 1. During installation, the battery box 3 moves along the guide mechanism to its installation position. The guide mechanism also constrains the battery box 3, limiting its lateral displacement on the mounting plane.

[0039] The first frame 1 is also equipped with a locking mechanism 13 to limit the vertical movement of the battery box 3. Multiple locking mechanisms 13 are distributed at various positions on the first frame 1, ensuring the battery box 3 is reliably fixed in all directions. In this embodiment, the locking mechanism 13 utilizes the dead point of the mechanical linkage 133 structure to provide a large locking force. The locking mechanism 13 in this embodiment includes a locking seat 131, a locking hook 132, a linkage 133, and a driving member 134. The locking hook 132 is positioned towards the mounting position of the battery box 3 and is used to connect with the pressure plate on the battery box 3. Under the action of the driving member 134, the linkage 133 drives the locking hook 132 to rotate on the locking seat 131. After the battery box 3 falls into the mounting position on the first frame 1 and is positioned, the driving member 134 drives the locking hook 132 to rotate towards the battery box 3, pressing the locking hook 132 against the pressure plate of the battery box 3, thus locking the battery box 3. When it is necessary to remove the battery box 3, the drive component 134 drives the locking hook 132 to rotate away from the battery box 3, the locking hook 132 and the pressure plate of the battery box 3 separate, and the battery box 3 is unlocked.

[0040] like Figure 2 As shown in Figure 3, when the locking hook 132 rotates to press against the pressure plate of the battery box 3, the connecting rod 133 and the locking hook 132 are collinear. The connecting rod 133 mechanism formed by the locking hook 132 and the connecting rod 133 reaches the dead point position, the transmission angle becomes 0°, the lever arm is zero, and the torque of the driving force on the rotating shaft of the locking hook 132 is zero, so it cannot push the locking hook 132 to rotate. At this time, the external force applied to the locking hook 132 also cannot drive the locking hook 132 to reverse, thus achieving self-locking. Even if the driving force is removed, the locking hook 132 can still firmly clamp the workpiece.

[0041] The locking mechanism 13 not only ensures the vertical stability of the battery box 3, but also effectively prevents the risk of the battery box 3 shaking or falling off due to bumps during driving. Through the mechanical linkage 133 structure formed by the connecting rod 133 and the locking hook 132, the dead point of the connecting rod 133 multiplies the clamping force, stably locking the battery box 3 and preventing it from being passively unlocked. The locking mechanism 13 can withstand a large external force in the locked state, ensuring a firm connection between the battery box 3 and the base. Furthermore, the locking mechanism 13 is easy to operate; simply rotating the locking hook 132 via the drive component 134 easily locks and unlocks the battery box 3, greatly improving the efficiency of replacing the battery box 3.

[0042] Connector 14 is located in the middle of the first frame 1. Connector 14 is connected to the circuit of the vehicle body and corresponds to the battery box connector 31 at the bottom of the battery box 3. Connector 14 on the first frame 1 and battery box connector 31 are in close contact and start to supply power to various electrical devices on the vehicle under electronic control.

[0043] Using the battery box base in this embodiment, the operation steps for replacing the battery box 3 are as follows: Under the control of the hoisting mechanism, the battery box 3 moves above the first frame 1 and descends. Guided by the guide mechanism, it slides into the battery box base and completes precise positioning. The driving component 134 of the locking mechanism 13 drives the connecting rod 133 and the locking hook 132 to move. The locking hook 132 presses against the pressure plate of the battery box 3, locking the battery box 3. The connector 14 of the battery box base and the battery box connector 31 are in close contact, and charging begins under electronic control.

[0044] In some optional embodiments, the locking mechanism 13 further includes a first rotating shaft 135 and a second rotating shaft 136. The first rotating shaft 135 is connected to the connecting rod 133. The locking seat 131 is provided with a first sliding groove 1311. The first rotating shaft 135 passes through the first sliding groove 1311 and can slide along the first sliding groove 1311 under the drive of the driving member 134. The locking hook 132 is L-shaped and has a first end, a second end, and a bent portion. The bent portion is located between the first end and the second end. The second rotating shaft 136 passes through the locking seat 131 and the first end so that the first end is rotatably connected to the locking seat 131. The connecting rod 133 is connected to the bent portion. When the first rotating shaft 135 slides to the first sliding groove 1311, the first rotating shaft 135, the connecting rod 133, and the second end are on the same straight line. The connecting rod 133 and the locking hook 132 are at the dead point position, and the battery box 3 is locked.

[0045] like Figure 2 As shown, the locking seat 131 has a first sliding groove 1311 and an opening facing the mounting position of the battery box 3. A first rotating shaft 135 is embedded in the first sliding groove 1311 and is connected to a connecting rod 133. The connecting rod 133 slides up and down along the first sliding groove 1311 under the action of the driving member 134. A locking hook 132 is provided in the opening on the locking seat 131. The L-shaped locking hook 132 has two sides: the first side is between the first end and the bent part, and the second side is between the bent part and the second end. The first end of the locking hook 132 is rotatably connected to the locking seat 131 through a second rotating shaft 136. The bent part of the locking hook 132 is connected to the connecting rod 133, and the second end of the locking hook 132 is a free end. Under the drive of the connecting rod 133, the first side moves in a circular motion around the second rotating shaft 136, and the second side moves towards or away from the pressure plate of the battery box 3.

[0046] When the drive component 134 pushes the connecting rod 133 upward, the first rotating shaft 135 slides upward in the first slide groove 1311. The other end of the connecting rod 133, under the constraint of the locking hook 132, pushes the locking hook 132 to rotate towards the pressure plate of the battery box 3. When the first rotating shaft 135 slides to the top of the first slide groove 1311, the locking hook 132 presses against the pressure plate of the battery box 3. The second sides of the connecting rod 133 and the locking hook 132 are collinear and reach the dead point position. The locking hook 132 has a large locking force.

[0047] When the drive component 134 pulls down the connecting rod 133, the first rotating shaft 135 slides downward in the first slide groove 1311. The other end of the connecting rod 133, constrained by the locking hook 132, drives the locking hook 132 to rotate away from the pressure plate of the battery box 3, causing the locking hook 132 to separate from the pressure plate of the battery box 3, thus unlocking the battery box 3. When the first rotating shaft 135 slides to the bottom of the first slide groove 1311, the locking hook 132 completely disengages from the pressure plate of the battery box 3 and retracts entirely into the locking seat 131, no longer obstructing the movement of the battery box 3 in the vertical direction. The battery box 3 can then move upward in the vertical direction and be removed from the battery box base.

[0048] In this embodiment, a Hall sensor 137 is also provided on the locking seat 131 to monitor the locking status in real time. When the locking hook 132 rotates to the position to complete locking and unlocking, a signal is issued to remind the operator, which improves the reliability and safety of the locking mechanism 13.

[0049] In some alternative embodiments, the locking seat 131 is disposed near the edge of the first frame 1, and the side of the locking seat 131 opposite to the center of the first frame 1 has a first guide plate 1312, which is inclined in the direction opposite to the first frame 1 so that the battery box 3 can move along the first guide plate 1312.

[0050] Understandably, to achieve better securing effect, the locking mechanism 13 should be installed at least along the outer edge of the battery box 3, tightly fixing the bottom edge of the battery box 3 to the battery box base and restricting the lateral movement of the battery box 3. The locking mechanism 13, located on the outer edge, not only secures and limits the battery box 3 but also serves a guiding function.

[0051] When the battery box 3 falls into the battery box base, the outer frame of the battery box 3, which has a pressure plate, will make close contact with the outer edge of the locking seat 131. The outer edge of the locking seat 131, that is, the side away from the center of the first frame 1, has an inclined first guide plate 1312, so that the size of the locking seat 131 gradually increases from top to bottom. When the battery box 3 and the locking mechanism 13 are aligned and fall in, it first contacts the inclined first guide plate 1312, and then slides into the target position along the first guide plate 1312. Precise positioning is not required when positioning the battery box 3, which is convenient for operation. The locking mechanisms 13, which are symmetrically arranged at different positions on the first frame 1, also play a centering role for the battery box 3. Under the guidance and centering action of the locking mechanisms 13, the battery box 3 can fall into the battery box base smoothly and accurately, avoiding the shaking or misalignment of the battery box 3 due to improper operation or inaccurate positioning.

[0052] Additionally, in some alternative embodiments, such as Figure 4 - Figure 5As shown, there are multiple guiding mechanisms, which are divided into a first guiding mechanism 11 and a second guiding mechanism 12. The first guiding mechanism 11 is located at the edge of the first frame 1. The side of the first guiding mechanism 11 away from the center of the first frame 1 has a second guiding plate 111. The second guiding plate 111 is inclined in the direction away from the first frame 1 so that the battery box 3 can move along the second guiding plate 111. The second guiding mechanism 12 is columnar and protrudes from the surface of the first frame 1. The second guiding mechanism 12 includes a positioning section 121 and a first guiding section 122 connected axially. The positioning section 121 is close to the first frame 1, and the first guiding section 122 is away from the first frame 1. The cross-sectional dimension of the positioning section 121 decreases in the direction away from the first frame 1. The positioning section 121 and the first guiding section 122 are connected at the same position.

[0053] The first guiding mechanism 11 and the locking mechanism 13 located at the edge of the first frame 1 work together to provide the first coarse guidance for the battery box 3. When the battery box 3 falls, the outer frame of the battery box 3 contacts the first guide plate 1312 of the locking mechanism 13 and the second guide plate 111 of the first guiding mechanism 11, and slides down along the first guide plate 1312 and the second guide plate 111, so that the battery box 3 accurately falls on the first frame 1 and abuts against the first guiding mechanism 11 and the locking mechanism 13.

[0054] The second guiding mechanism 12 is used to insert into the guide groove 32 at the bottom of the battery box 3. The bottom of the battery box 3, which is connected to the battery box base, is provided with a corresponding guide groove 32. The cross-section of the guide groove 32 gradually increases from top to bottom. The second guiding mechanism 12 and the guide groove 32 cooperate to perform a second fine guidance on the battery box 3. The second guiding mechanism 12 is made of high-strength alloy steel, which has high hardness and wear resistance.

[0055] The second guide mechanism 12 adopts an upper straight section and a lower conical section design. The upper first guide section 122 is cylindrical, with a size smaller than that of the guide groove 32, serving as a guide to facilitate the second guide mechanism 12's entry into the guide groove 32 of the battery box 3. The lower positioning section 121 is a cone or square cone with a gradually increasing cross-section. This conical design allows for automatic centering and calibration as the battery box 3 descends. The bottom dimension of the positioning section 121 matches the bottom dimension of the guide groove 32, ensuring a tight fit between the second guide mechanism 12 and the guide groove 32 of the battery box 3, reducing minor displacements and wobbling, and improving stability and accuracy. In actual production, manufacturing errors may exist in the parts. The design of the first guide section 122 and the positioning section 121 can compensate for these errors to a certain extent, ensuring the interchangeability of different battery boxes 3 and preventing jamming.

[0056] A second guide section 123 may also be provided at the top of the second guide mechanism 12. The cross-sectional dimensions of the second guide section 123 gradually increase from top to bottom, and its outer surface is a smooth slope. The positioning section 121, the first guide section 122, and the second guide section 123 are connected in sequence to form an inclined-straight-inclined external structure. When the battery box 3 falls, the guide groove 32 first contacts the outer surface of the second guide section 123. The slope of the second guide section 123 and the slope of the guide groove 32 cooperate to reduce the sharp structures that may exist during the movement, so that the battery box 3 can fall smoothly and avoid collisions during installation.

[0057] like Figure 5 As shown, the battery box base in this embodiment has a three-stage guiding mechanism. During the process of the battery box 3 being placed on the battery box base, firstly, the outer frame of the battery box 3 is initially aligned along the second guide plate 111 of the first guiding mechanism 11 and the first guide plate 1312 of the locking mechanism 13. Secondly, the guide groove 32 of the battery box 3 is fitted onto the second guiding mechanism 12 for secondary positioning and alignment of the battery box 3. Then, the battery box connector 31 and the connector 14 of the battery box base cooperate, and the precise shaft hole cooperation ensures that the connector 14 is reliably inserted.

[0058] Additionally, in some alternative embodiments, such as Figure 6 As shown in Figure 7, the connector 14 includes a connector body 141 and a fastener 142, which passes through the connector body 141 and the first frame 1. The fastener 142 includes an elastic buffer 1422.

[0059] Specifically, the fastener 142 comprises a locating pin 1421, an elastic buffer 1422, a locating sleeve 1423, a flat washer 1424, a slotted nut 1425, and a cotter pin 1426. When the battery box 3 is seated, the battery box connector 31 and the connector 14 of the battery box base mate, compressing the elastic buffer 1422 to achieve soft contact between the upper and lower connectors 14. This protects the pins inside the connector 14 and, in cases where there are manufacturing tolerances between the battery box 3 and the battery box base, and the flatness is poor, the compression allowance of the elastic buffer 1422 can compensate for these tolerances. The elastic buffer 1422 can be a rectangular spring, which has greater strength and can effectively protect the connector 14 during bumps and shaking during transportation.

[0060] Furthermore, the connector 14 is also equipped with a high-voltage cable 143 for connecting the battery box 3 to the vehicle's circuitry to supply power to various electrical devices.

[0061] In addition, in some optional embodiments, a plurality of buffer pads 15 are symmetrically provided on the first frame 1. The plurality of buffer pads 15 are divided into a first buffer pad 151 and a second buffer pad 152, and the height of the first buffer pad 151 is greater than the height of the second buffer pad 152.

[0062] Both the first buffer pad 151 and the second buffer pad 152 are made of polyurethane, which has good wear resistance and strong pressure bearing capacity. The first buffer pad 151 has a lower hardness than the second buffer pad 152, and the height of the first buffer pad 151 is greater than the height of the second buffer pad 152, with a height difference of 3mm. The first buffer pad 151 and the second buffer pad 152 are staggered on the first frame 1. When the battery box 3 is seated, the higher first buffer pad 151 takes effect first. After the first buffer pad 151 is compressed by 3mm under the weight of the battery box 3, the second buffer pad 152 takes effect. The combination of the soft and hard materials of the first buffer pad 151 and the second buffer pad 152 can better eliminate the tolerance between the lower surface of the battery box 3 and the upper surface of the battery box base, making the connection between the battery box 3 and the battery box base tighter and preventing the battery box 3 from shaking.

[0063] The locking mechanism 13 experiences concentrated stress, so a first buffer pad 151 is mainly installed around it. The connector 14 contains numerous high-precision probes that are sensitive to compression; therefore, a second buffer pad 152 with high hardness is installed around the connector 14 for enhanced protection. The specific arrangement can be flexibly adjusted according to the actual stress conditions of the battery box base.

[0064] In addition, in some optional embodiments, the plurality of buffer pads 15 are divided into a first buffer pad 151, a second buffer pad 152 and a third buffer pad 153. The third buffer pad 153 is L-shaped and is disposed at the corner of the first frame 1. The third buffer pad 153 is a steel pad.

[0065] The battery box 3 and its base are connected by a cross arrangement of a first buffer pad 151, a second buffer pad 152, and a third buffer pad 153, with particular emphasis on protecting the areas around the locking mechanism 13, the corners of the first frame 1, and around the connector 14. The L-shaped third buffer pad 153, made of steel, is installed at the four corners of the first frame 1, providing greater strength. When the impact on the battery box 3 is excessive, or when long-term use and replacement cause the first and second buffer pads 151 and 152 to fail, the third buffer pad 153 provides safety redundancy, protecting the locking mechanism 13 and the connector 14.

[0066] Additionally, in some alternative embodiments, such as Figure 8 As shown, the battery box base also includes a second frame 2. The first frame 1 is connected to the second frame 2. The first frame 1 is used to connect the battery box 3, and the second frame 2 is used to connect the vehicle body.

[0067] The battery box base is welded together from a first frame 1 and a second frame 2. The first frame 1 is welded together from multiple high-strength steel beams. A guide mechanism, a locking mechanism 13, and a connector 14 are welded onto the first frame 1 to connect to and support the battery box 3. The structure is stable and has reliable strength.

[0068] The second frame 2 is welded together from a first connecting seat 21 and a second connecting seat 22. Both the first connecting seat 21 and the second connecting seat 22 are connected to the end beam 4 by bolts, fixing the first frame 1 to the end beam 4. The other end of the first connecting seat 21 extends outward and is welded to the first frame 1, supporting the four sides of the first frame 1. The second connecting seat 22 supports the middle of the first frame 1. Depending on the connection method of different vehicle bodies, only the structure of the first connecting seat 21 of the first frame 1 needs to be changed to quickly adapt to different vehicle bodies. This greatly reduces the design and production costs of battery box bases suitable for different vehicle bodies.

[0069] In some alternative embodiments, a sensor 16 is provided on the first frame 1 for detecting the position of the battery box 3.

[0070] refer to Figure 1 A sensor 16 is also provided on the first frame 1 near the locking mechanism 13. It is installed on the inner side of the beam of the first frame 1 and fixed to the beam by the flange nut. It can detect whether the battery box 3 is seated in place. This design can be compatible with battery boxes 3 from different manufacturers and has a dual-state detection function of locking and unlocking, ensuring that the battery box 3 and the battery box base are always firmly connected during transportation.

[0071] This utility model provides a battery box base, which includes a first frame with a guide mechanism, a locking mechanism, and a connector. The guide mechanism guides and positions the battery box, greatly reducing the precision requirements during installation and enabling rapid and stable positioning. It also ensures precise alignment of the locking mechanism and connector. The locking mechanism secures the battery box. During rotation, the connecting rod and locking hook have a dead point where the axial force transmission angle is zero, preventing rotation and ensuring the locking hook is firmly engaged with the bottom beam of the battery box. This prevents the battery box from detaching even under complex conditions, solving the problems of Z-axis runout and loosening after clamping.

[0072] This utility model embodiment also provides a vehicle, including any of the battery box bases provided in the above embodiments.

[0073] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0074] Although alternative embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make further changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the alternative embodiments as well as all changes and modifications falling within the scope of the present invention.

[0075] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used merely to distinguish one entity from another, and do not necessarily require or imply any such actual relationship or order between these entities. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or terminal device that includes that element.

[0076] The technical solution provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the principle and implementation of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A battery box base, characterized in that, The battery box base includes a first frame (1), on which a guide mechanism, a locking mechanism (13), and a connector (14) are provided; wherein, The guiding mechanism is at least located at the edge of the first frame (1) to guide the battery box (3) to be placed on the battery box base; The locking mechanism (13) includes a locking seat (131), a locking hook (132), a connecting rod (133), and a driving member (134). The locking seat (131) is disposed on the first frame (1). The locking hook (132) is rotatably connected to the locking seat (131). One end of the connecting rod (133) is connected to the locking hook (132), and the other end of the connecting rod (133) is connected to the driving member (134). The driving member (134) is used to drive the connecting rod (133). The connecting rod (133) and the locking hook (132) rotate; during the rotation, the connecting rod (133) and the locking hook (132) have a dead point position. When the connecting rod (133) and the locking hook (132) rotate to the dead point position, the locking hook (132) engages with the battery box (3), and the battery box (3) is locked; when the connecting rod (133) and the locking hook (132) disengage from the dead point position, the locking hook (132) separates from the battery box (3), and the battery box (3) is unlocked; The connector (14) is used for electrical connection with the battery box (3).

2. The battery box base according to claim 1, characterized in that, The locking mechanism (13) further includes a first rotating shaft (135) and a second rotating shaft (136). The first rotating shaft (135) is connected to the connecting rod (133). The locking seat (131) is provided with a first sliding groove (1311). The first rotating shaft (135) passes through the first sliding groove (1311) and can slide along the first sliding groove (1311) under the drive of the driving member (134). The locking hook (132) is L-shaped and has a first end, a second end, and a bent portion. The bent portion is located between the first end and the second end. The second rotating shaft (136) passes through the locking seat (131) and the first end so that the first end is rotatably connected to the locking seat (131). The connecting rod (133) is connected to the bent portion. When the first rotating shaft (135) slides into the first sliding groove (1311), the first rotating shaft (135), the connecting rod (133) and the second end are on the same straight line, the connecting rod (133) and the locking hook (132) are located at the dead point position, and the battery box (3) is locked.

3. The battery box base according to claim 1, characterized in that, The locking seat (131) is disposed near the edge of the first frame (1), and the locking seat (131) has a first guide plate (1312) on the side away from the center of the first frame (1). The first guide plate (1312) is inclined in the direction away from the first frame (1) so that the battery box (3) can move along the first guide plate (1312).

4. The battery box base according to claim 1, characterized in that, The number of the guiding mechanisms is multiple, and the multiple guiding mechanisms are divided into a first guiding mechanism (11) and a second guiding mechanism (12); wherein, The first guide mechanism (11) is located at the edge of the first frame (1). The first guide mechanism (11) has a second guide plate (111) on the side away from the center of the first frame (1). The second guide plate (111) is inclined in the direction away from the first frame (1) so that the battery box (3) moves along the second guide plate (111). The second guide mechanism (12) is columnar and protrudes from the surface of the first frame (1). The second guide mechanism (12) includes a positioning section (121) and a first guide section (122) connected along the axial direction. The positioning section (121) is close to the first frame (1), and the first guide section (122) is away from the first frame (1). The cross-sectional dimension of the positioning section (121) decreases in the direction away from the first frame (1). The positioning section (121) and the first guide section (122) are connected at the same position with the same dimensions.

5. The battery box base according to claim 1, characterized in that, The connector (14) includes a connector body (141) and a fastener (142) passing through the connector body (141) and the first frame (1), and the fastener (142) includes an elastic buffer (1422).

6. The battery box base according to claim 1, characterized in that, The first frame (1) is symmetrically provided with multiple buffer pads (15), and the multiple buffer pads (15) are divided into a first buffer pad (151) and a second buffer pad (152). The height of the first buffer pad (151) is greater than the height of the second buffer pad (152).

7. The battery box base according to claim 6, characterized in that, The multiple buffer pads (15) are divided into a first buffer pad (151), a second buffer pad (152) and a third buffer pad (153). The third buffer pad (153) is L-shaped and is located at the corner of the first frame (1). The third buffer pad (153) is a steel pad.

8. The battery box base according to claim 1, characterized in that, The battery box base also includes a second frame (2), the first frame (1) is connected to the second frame (2), the first frame (1) is used to connect the battery box (3), and the second frame (2) is used to connect the vehicle body.

9. The battery box base according to claim 1, characterized in that, A sensor (16) is provided on the first frame (1), and the sensor (16) is used to detect the position of the battery box (3).

10. A vehicle, characterized in that, Includes the battery box base as described in any one of claims 1-9.

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