Battery box unlocking device, battery box and battery box rapid battery replacement system

Abstract

The present invention provides a battery box unlocking device, a battery box, and a battery box rapid battery replacement system. The locking mechanism of the battery box unlocking device is used to lock and fix the battery box body to the battery fixing frame of the electric vehicle; the telescopic mechanism performs telescopic movement relative to the transmission mechanism under the action of the unlocking external force; one end of the transmission mechanism is connected to the telescopic mechanism, and the other end is connected to the locking mechanism; the telescopic movement of the telescopic mechanism drives the transmission mechanism to move between the telescopic mechanism and the locking mechanism to control the locking or unlocking of the locking mechanism; the locking mechanism includes a lock box and a linkage part, a locking bracket, and a main lock tongue arranged in the lock box. The battery box includes a box body and a battery box unlocking device. The battery box rapid battery replacement system includes: a battery fixing frame, a battery replacement device, and a battery box. The battery box unlocking device, the battery box, and the battery box rapid battery replacement system of the present invention have a simplified mechanical structure, are safe and reliable, have a correct linkage effect, have high unlocking accuracy, and will not damage components.

Description

[0001] This application is a divisional application of the Chinese patent application with application date of December 29, 2017, application number 2017114828872, and invention name “Battery box unlocking device, battery box and battery box fast battery replacement system”. Technical Field

[0002] The present invention relates to the field of battery box replacement equipment, and in particular to a battery box unlocking device, a battery box and a battery box rapid battery replacement system. Background Art

[0003] Due to the shortage of oil resources and people's growing awareness of environmental protection, the use of electric vehicles is becoming more and more widespread and has become a trend. To support the use of electric vehicles, battery swap stations have also emerged. At these stations, battery swap robots can quickly replace the batteries in electric vehicles.

[0004] In the prior art, the connection mechanism on the battery box used to connect to the battery swapping device is usually separately provided from the locking mechanism on the battery box used to lock / unlock the battery box with the fixing frame. The locking mechanism is usually provided on both sides of the battery box. When the battery swapping device is used to disassemble and separate the battery box from the battery fixing frame, the unlocking mechanism of the battery swapping device unlocks the locking mechanisms on both sides of the battery box respectively, thereby completing the disassembly of the battery box. However, in actual use, the unlocking mechanism of the battery swapping device and the locking mechanism of the battery box adopt a hard contact method for the unlocking operation, which is prone to wear of the components in the unlocking mechanism and the locking mechanism, and requires complex alignment operations. The unlocking accuracy is poor, and incomplete unlocking may occur, resulting in the battery swapping device being unable to pull out the battery box. This also affects the battery swapping efficiency of the battery swapping device to a certain extent. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defects in the prior art of easy damage to locking and unlocking components and poor unlocking accuracy when unlocking the battery box, and to provide a battery box unlocking device, a battery box and a battery box rapid battery replacement system.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] A battery box unlocking device comprises: a mounting seat, a telescopic mechanism, a transmission mechanism and a locking mechanism; the locking mechanism is used to lock and fix the battery box body to the battery fixing frame of the electric vehicle; the telescopic mechanism is arranged in the mounting seat, and the telescopic mechanism performs telescopic movement relative to the transmission mechanism in the mounting seat under the action of an unlocking external force; one end of the transmission mechanism is connected to the telescopic mechanism, and the other end of the transmission mechanism is connected to the locking mechanism; the telescopic movement of the telescopic mechanism drives the transmission mechanism to move between the telescopic mechanism and the locking mechanism, and the movement of the transmission mechanism controls the locking or unlocking of the locking mechanism.

[0008] Preferably, in the battery box unlocking device of the present invention, the transmission mechanism includes an active column, a driven column, a connecting rod, a transmission rod and a guide portion; the active column is connected to the telescopic mechanism, the driven column is connected to one end of the transmission rod, the connecting rod is connected to the active column and the driven column respectively, the connecting rod can rotate around the axis of the active column, and the connecting rod can rotate around the axis of the driven column; the other end of the transmission rod is connected to the locking mechanism; the guide portion is provided with a driven guide hole extending along the movement direction of the transmission rod, the driven column passes through the driven guide hole and slides in the driven guide hole. According to this preferred embodiment, the telescopic mechanism is used to drive the active column to move, the active column and the driven column are linked by the connecting rod, the driven column moves along the guide portion in a direction different from the movement direction of the active column toward both sides of the active column, converting the longitudinal torque of the active column into the lateral torque of the transmission rod, and guiding the lateral movement of the driven column through the guide portion, so that the linkage effect of the transmission mechanism is more accurate and smooth, and saves space inside the battery box.

[0009] Preferably, in the battery box unlocking device of the present invention, the guide portion defines an active guide hole extending in the direction of extension and retraction of the telescopic mechanism, through which the active post passes and slides. This preferred embodiment ensures that the active post remains aligned during the pushing and pulling of the telescopic mechanism, thereby avoiding force loss during torque transmission and improving energy efficiency.

[0010] Preferably, in the battery box unlocking device of the present invention, the guide portion is provided with a transmission guide hole, through which the transmission rod passes and moves. This preferred embodiment prevents the transmission rod from shaking or shifting in other directions during the pushing and pulling process.

[0011] Preferably, in the battery box unlocking device of the present invention, the transmission rod includes an active pull rod, a first return spring and a driven pull rod, the active pull rod is connected to the driven column, the active pull rod is connected to the driven pull rod, the driven pull rod is connected to the locking mechanism, the first return spring is sleeved on the active pull rod, one end of the first return spring is connected to the guide portion, and the other end of the first return spring is connected to the active pull rod. Through this preferred embodiment, the first return spring is used to store the torque transmitted to the active pull rod, and then the restoring force generated by the compression of the first return spring is used to release the torque to the active pull rod to return it to its initial position, so that when the next unlocking action is performed, the telescopic mechanism, the active pull rod, the driven pull rod and the locking mechanism can all be in their initial positions, facilitating the next unlocking step.

[0012] Preferably, in the battery compartment unlocking device of the present invention, the telescopic mechanism includes a telescopic rod and a hollow shaft, the mounting seat is disposed outside the hollow shaft, the telescopic rod is inserted into the hollow shaft and can perform telescopic movement therein, and the telescopic rod is connected to one end of the transmission mechanism. According to this preferred embodiment, the hollow shaft is disposed outside the telescopic rod, so that the telescopic rod is protected and guided by the hollow shaft during telescopic movement, preventing it from bending and causing damage, or the direction of telescopic movement from deviating from the axis of the telescopic rod.

[0013] Preferably, in the battery compartment unlocking device of the present invention, the hollow shaft is provided with a secondary guide hole extending in the direction of extension and retraction of the telescopic rod. One end of the transmission mechanism passes through and can slide along the secondary guide hole, and the connection between one end of the transmission mechanism and the telescopic rod is located within the hollow shaft. This preferred embodiment allows the active column located at one end of the transmission mechanism to move within the hollow shaft, protected and guided by the hollow shaft, while also conserving space.

[0014] Preferably, in the battery case unlocking device of the present invention, the end of the hollow shaft away from the mounting seat is connected to a fixed seat, and a second return spring is sleeved on the hollow shaft, with one end of the second return spring connected to the fixed seat, and the other end of the second return spring connected to one end of the transmission mechanism. This preferred embodiment allows the transmission mechanism to automatically reset itself after completing the unlocking force transmission due to the restoring force of the second return spring, allowing for rapid transition to the next unlocking action.

[0015] Preferably, in the battery box unlocking device of the present invention, the telescopic rod includes a pressing portion and a transmission shaft, the transmission shaft is inserted into the hollow shaft, the pressing portion is inserted into the end of the mounting seat away from the hollow shaft, the transmission shaft is connected to one end of the transmission mechanism, and the pressing portion abuts against the end of the transmission shaft away from the transmission mechanism. Through this preferred embodiment, the telescopic rod adopts a two-section structure, which gives the telescopic rod a certain "bending" space, that is, the pressing portion can undergo a slight displacement relative to the transmission shaft in the radial direction of the transmission shaft, thereby avoiding the problem of bending of the integrated telescopic rod due to the relative displacement between the two components when it is inserted between the two components.

[0016] Preferably, in the battery box unlocking device of the present invention, the push portion includes a button, a flange, a recessed portion, and a supporting post. The recessed portion is recessed at one end of the button near the transmission shaft, the flange is disposed around the recessed portion, and the supporting post is disposed through the button and abuts against the transmission shaft. Through this preferred embodiment, the flange and the second return spring cooperate to securely position the telescopic rod within the mounting seat and the hollow shaft, while preventing the telescopic rod from popping out of the mounting seat due to the restoring force of the second return spring.

[0017] Preferably, in the battery box unlocking device of the present invention, the locking mechanism includes a lock box and a linkage part, a locking bracket, a stop lock tongue and a main lock tongue arranged in the lock box; the linkage part is connected to one end of the transmission mechanism away from the telescopic mechanism; one end of the stop lock tongue is fixed to the lock box, and the other end of the stop lock tongue can elastically extend out of the lock box; the locking bracket is clamped on the linkage part, and the locking bracket is connected to the stop lock tongue, and the movement of the transmission mechanism drives the linkage part to make the locking bracket extend and retract along the telescopic direction of the stop lock tongue; the main lock tongue is connected to the locking bracket, and the telescopic movement of the locking bracket drives the main lock tongue to extend or retract the lock box. Through this preferred embodiment, when the linkage part transmits the unlocking external force of the transmission mechanism to the main lock tongue, the main lock tongue retreats and unlocks. At this time, the anti-retraction lock tongue acts as an energy storage component to store force. When there is no external force on the linkage part, the anti-retraction lock tongue releases the stored force, pushes the linkage part open, and drives the main lock tongue to pop out of the lock box through the locking bracket. The entire unlocking and resetting action is fast and accurate.

[0018] Preferably, in the battery box unlocking device of the present invention, the linkage part includes an unlocking push rod, an unlocking rocker and a locking rocker; the unlocking push rod is connected to one end of the transmission mechanism and moves along the movement direction of the transmission mechanism; the unlocking rocker is connected to the unlocking push rod, the unlocking rocker is pivoted to a swing shaft fixed to the lock box, and the movement of the unlocking push rod drives the unlocking rocker to swing around the swing shaft; one end of the locking rocker is pivoted to a rotating shaft fixed to the lock box, and the other end of the locking rocker is mounted on an end of the unlocking rocker away from the unlocking push rod; the locking bracket is clamped on an end of the locking rocker away from the unlocking rocker, and the locking rocker rotates around the rotating shaft to drive the locking bracket to move along the extension and retraction direction of the anti-retraction lock tongue. Through this preferred embodiment, the unlocking rocker and the locking rocker are used to accurately transmit the unlocking external force applied to the unlocking push rod to the anti-retraction lock tongue.

[0019] Preferably, in the battery box unlocking device of the present invention, a locking plate is fixed to the locking bracket, and the locking plate has a sliding claw and a stop claw, the sliding claw and the stop claw are linked, and the retraction lock tongue has a sliding inclined surface, and the sliding claw slides along the sliding inclined surface to drive the stop claw into or out of the retraction path of the main lock tongue. According to this preferred embodiment, the stop claw is controlled by the sliding claw, and when the main lock tongue is in the locked state, the stop claw serves to prevent the main lock tongue from retracting.

[0020] Preferably, in the battery box unlocking device of the present invention, the lock box is further provided with a safety shaft, the safety shaft being inserted into and extending out of the lock box, the safety shaft being retractable in the axial direction, the safety shaft being rotated from the unlocking position to the locking position, the safety shaft being provided with a locking post, and when the safety shaft is rotated to the locking position, the main lock tongue extending out of the lock box, and the locking post supporting the rear end of the main lock tongue. Through this preferred embodiment, the safety shaft is used in conjunction with the structure of the aforementioned locking mechanism, so that the locking mechanism is simple and convenient to operate, with high safety performance and intelligence, and in the secondary locking state, any erroneous operation due to external forces will not affect the locking state.

[0021] Preferably, in the battery box unlocking device of the present invention, the safety shaft is provided with a sensing post, and the lock box is provided with a sensor for detecting the position of the sensing post. When the safety shaft is rotated to the locked position, the sensor faces the sensing post. In this preferred embodiment, the sensor provides a signal, allowing the user to clearly discern whether the locking mechanism is in the unlocked or locked state.

[0022] Preferably, in the battery box unlocking device of the present invention, a pressure plate is fixed to the inner surface of the lock box away from the battery box, the pressure plate being defined with an unlocking position and a locking position, and a latching post is provided on the safety shaft, which rotates with the safety shaft to switch between the unlocking position and the locking position. This preferred embodiment improves the reliability of the secondary safety function of the safety shaft.

[0023] Preferably, in the battery box unlocking device of the present invention, the battery box unlocking device further comprises a housing, the transmission mechanism and the locking mechanism being disposed within the housing, and the mounting seat and the telescopic mechanism being telescopically disposed within the housing along a telescopic direction of the telescopic mechanism. This preferred embodiment prevents the transmission mechanism and the locking mechanism from being exposed to the outside, thereby protecting them from damage.

[0024] Preferably, in the battery box unlocking device of the present invention, the mounting base includes an electromagnet suction cup, which is mounted on an end of the telescopic mechanism away from the transmission mechanism. With this preferred embodiment, the battery box and external device can be conveniently connected by energizing the electromagnet, achieving a high degree of automation and intelligence.

[0025] A battery box, comprising: a box body; a battery box unlocking device; the mounting seat is arranged on a side of the telescopic mechanism away from the box body, the telescopic mechanism and the transmission mechanism are arranged at the end of the box body, and the locking mechanism is arranged on the side of the box body; the telescopic mechanism performs telescopic movement relative to the end of the box body, and the transmission mechanism moves along the end of the box body.

[0026] Preferably, in the battery box of the present invention, there are two locking mechanisms, each positioned on opposite sides of the box body; there are two transmission mechanisms, each positioned on either side of the telescopic mechanism; and the telescopic mechanism simultaneously drives both locking mechanisms to lock or unlock via the two transmission mechanisms. This preferred embodiment transforms the battery box unlocking device from being located separately on either side of the box body as in the prior art to a single unlocking point and power point, simplifying the battery box's functional and failure points and improving the accuracy and success rate of unlocking the battery box using an external device.

[0027] A battery box quick battery replacement system, which includes: a battery fixing bracket, a battery replacement device and a battery box; the battery fixing bracket has a locking portion, and the locking mechanism is locked with the locking portion; the battery replacement device includes a battery replacement device suction cup and an unlocking rod telescopically inserted into the battery replacement device suction cup, the unlocking rod is arranged corresponding to the telescopic mechanism, and the extending movement of the unlocking rod is used to push the telescopic mechanism to retract, driving the locking mechanism to unlock the locking portion, and the battery replacement device suction cup connects the battery replacement device and the battery box together by sucking the mounting seat.

[0028] On the basis of conforming to the common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0029] The positive progress effect of the present invention is:

[0030] The battery box unlocking device, battery box and battery box quick battery replacement system provided by the present invention utilize a transmission mechanism to transmit the torque generated by the telescopic movement of the telescopic mechanism under the unlocking external force to the locking mechanism, and integrate multiple functional components on the same battery box to achieve one-point action and multi-point unlocking, which can realize automatic unlocking and locking, and has a simplified mechanical structure, is safe and reliable, has a correct linkage effect, has high unlocking accuracy, and avoids the problem of damage to the locking and unlocking components caused by the hard connection of the unlocking device and the locking mechanism on both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A perspective view of a battery box unlocking device according to an embodiment of the present invention.

[0032] Figure 2 Schematic diagram of the telescopic mechanism in the battery box unlocking device according to one embodiment of the present invention.

[0033] Figure 3 Schematic diagram of a transmission mechanism in a battery box unlocking device according to an embodiment of the present invention.

[0034] Figure 4 Schematic diagram of a guide portion in a battery box unlocking device according to an embodiment of the present invention.

[0035] Figure 5 Schematic diagram of the interior of the locking mechanism in a battery box unlocking device according to an embodiment of the present invention.

[0036] Figure 6 Schematic diagram of the connection of the locking mechanism in the battery box unlocking device according to one embodiment of the present invention.

[0037] Figure 7 This is a front view of a battery box according to an embodiment of the present invention.

[0038] Figure 8FIG2 is a schematic diagram of the installation of a battery box and a battery fixing bracket according to an embodiment of the present invention.

[0039] Figure 9 This is a schematic diagram of unlocking a battery box quick battery replacement system according to an embodiment of the present invention.

[0040] Description of reference numerals:

[0041] Mount 1

[0042] Telescopic mechanism 2

[0043] Telescopic rod 21

[0044] Pushing portion 211

[0045] Button

[0046] flange 2112

[0047] Depression 2113

[0048] Support column 2114

[0049] Drive shaft 212

[0050] Hollow shaft 22

[0051] Secondary guide hole 221

[0052] Fixed seat 23

[0053] Second return spring 24

[0054] Transmission mechanism 3

[0055] Active column 31

[0056] Driven column 32

[0057] Connecting rod 33

[0058] Transmission rod 34

[0059] Active tie rod 341

[0060] First return spring 342

[0061] Driven pull rod 343

[0062] Guide portion 35

[0063] Driven guide hole 351

[0064] Active guide hole 352

[0065] Transmission guide hole 353

[0066] Locking mechanism 4

[0067] Lock Box 41

[0068] Linkage unit 42

[0069] Unlock push rod 421

[0070] Unlocking lever 422

[0071] Locking rocker 423

[0072] Locking bracket 43

[0073] Stop lock tongue 44

[0074] Main lock tongue 45

[0075] Locking plate 46

[0076] Sliding claw 461

[0077] Stop claw 462

[0078] Safety shaft 47

[0079] Locking column 471

[0080] Induction column 472

[0081] Positioning column 473

[0082] Sensor 48

[0083] Pressure plate 49

[0084] Shell 5

[0085] Box 6

[0086] Battery holder 7

[0087] Locking portion 71

[0088] Battery replacement equipment 8

[0089] Battery replacement equipment suction cup 81

[0090] Unlocking lever 82 DETAILED DESCRIPTION

[0091] A preferred embodiment is given below and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0092] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0093] like Figures 1 to 6 As shown, one embodiment of the present invention discloses a battery box unlocking device, which includes: a mounting seat 1, a telescopic mechanism 2, a transmission mechanism 3 and a locking mechanism 4; the locking mechanism 4 is used to lock and fix the box body 6 of the battery box on the battery fixing frame 7 of the electric vehicle; the telescopic mechanism 2 is inserted into the mounting seat 1, and the telescopic mechanism 2 performs a telescopic movement relative to the transmission mechanism 3 in the mounting seat 1 under the action of an unlocking external force; one end of the transmission mechanism 3 is connected to the telescopic mechanism 2, and the other end of the transmission mechanism 3 is connected to the locking mechanism 4; the telescopic movement of the telescopic mechanism 2 drives the transmission mechanism 3 to move between the telescopic mechanism 2 and the locking mechanism 4, and the movement of the transmission mechanism 3 controls the locking or unlocking of the locking mechanism 4.

[0094] Specifically, in a hybrid vehicle, when the battery power is low and needs to be replaced, an external device is required to quickly unlock the battery box. Therefore, the battery box also needs to be equipped with a corresponding unlocking device to achieve the purpose of quick unlocking. In the prior art, the external device presses the battery box body 6 from both sides of the battery box unlocking device to separate it from the battery holder 7. The typical battery replacement time is about ten minutes, which is also relatively long. In the battery box unlocking device of this embodiment, compared with the previously used battery box unlocking device, the device has a compact overall structure, a small size, and a sensitive operation. Most importantly, the battery replacement time is less than six minutes, which is nearly doubled. In the battery box unlocking device of this embodiment, under the action of the unlocking external force, the telescopic mechanism 2 performs a telescopic movement relative to the battery box body 6 in the mounting seat 1, driving the transmission mechanism 3 to push and pull along the surface of the battery box body 6 on both sides of the telescopic mechanism 2, and finally drives the locking mechanism 4 and the battery fixing frame 7 to lock or unlock. The telescopic mechanism 2 transmits the unlocking external force to the transmission mechanism 3, and the transmission mechanism 3 then transmits the unlocking external force to the locking mechanism 4. Through the linkage mechanism that controls multiple locking and unlocking points at one point, automated and intelligent unlocking and locking control is realized, and the mechanical structure is simplified, safe and reliable, and the linkage effect is correct.

[0095] In the battery box unlocking device of this embodiment, the transmission mechanism 3 includes an active column 31, a driven column 32, a connecting rod 33, a transmission rod 34 and a guide portion 35; the active column 31 is connected to the telescopic mechanism 2, the driven column 32 is connected to one end of the transmission rod 34, the connecting rod 33 is connected to the active column 31 and the driven column 32 respectively, the connecting rod 33 can rotate around the axis of the active column 31, and the connecting rod 33 can rotate around the axis of the driven column 32; the other end of the transmission rod 34 is connected to the locking mechanism 4; a driven guide hole 351 extending along the movement direction of the transmission rod 34 is opened on the guide portion 35, and the driven column 32 passes through the driven guide hole 351 and slides in the driven guide hole 351. Specifically, the transmission mechanism 3 is the core component. To achieve the purpose of the present invention, in the unlocking device of the battery exchange equipment 8 of this embodiment, the structure of the transmission mechanism 3 includes five components, among which the active column 31 is driven by the telescopic mechanism 2, and generates a force in the direction of the battery box body 6 through the telescopic movement. The active column 31 moves together with the telescopic movement, and drives the driven column 32 along the driven guide hole 351 on the guide part 35 to move toward both sides of the active column 31 through the connecting rod 33. At this time, the two rotational movements of the connecting rod 33 relative to the active column 31 and the driven column 32 are used to reduce the force generated by the active column 31 in the direction of the battery box body 6. In this embodiment, the guide part 35 is a frame structure, and the driven guide hole 351 is opened on the frame structure. The driven column 32 passes through the driven guide hole 351 and moves on the frame structure along the driven guide hole 351. Through this preferred embodiment, the telescopic mechanism 2 is used to drive the active column 31 to move, and the active column 31 and the driven column 32 are linked by the connecting rod 33. The driven column 32 moves along the guide part 35 toward both sides of the active column 31 in a direction different from the movement direction of the active column 31, and the longitudinal torque of the active column 31 is converted into the lateral torque of the transmission rod 34, and the lateral movement of the driven column 32 is guided by the guide part 35, so that the linkage effect of the transmission mechanism 3 is more accurate and smooth, and the space inside the battery box is saved.

[0096] In the battery box unlocking device of this embodiment, an active guide hole 352 extending along the telescopic direction of the telescopic mechanism 2 is provided on the guide portion 35, and the active column 31 passes through the active guide hole 352 and slides in the active guide hole 352. Specifically, an active guide hole 352 is provided on the guide portion 35 in a direction different from that of the driven guide hole 351, and the active column 31 passes through the active guide hole 352 and moves in the guide portion 35 along the active guide hole 352. In this embodiment, preferably, the driven guide hole 351 is closer to the battery box body 6 than the active guide hole 352, and the driven guide holes 351 are provided on both sides of the active guide hole 352, and the active guide holes 352 are perpendicular to the driven guide holes 351. Through this preferred embodiment, when the telescopic mechanism 2 pushes and pulls the active column 31, the movement of the active column 31 is always on the same straight line, thereby avoiding force loss during torque transmission and improving energy utilization.

[0097] In the battery compartment unlocking device of this embodiment, a transmission guide hole 353 is defined in the guide portion 35, through which the transmission rod 34 passes and moves. Specifically, the transmission guide hole 353 is defined on the side of the frame structure of the guide portion 35 to guide the transmission rod 34 during push-pull movements. This preferred embodiment prevents the transmission rod 34 from shaking or moving in other directions during the push-pull movement.

[0098] In the battery box unlocking device of this embodiment, the transmission rod 34 includes an active pull rod 341, a first return spring 342 and a driven pull rod 343. The active pull rod 341 is connected to the driven column 32. The active pull rod 343 is connected to the driven column 32. 1 The first return spring 342 is connected to the active rod 341, which is in turn connected to the locking mechanism 4. The first return spring 342 is sleeved on the active rod 341. One end of the first return spring 342 is connected to the guide portion 35, and the other end of the first return spring 342 is connected to the active rod 341. Specifically, the transmission rod 34 has three parts. The active rod 341 receives the force of the driven column 32 and generates a push-pull motion, thereby driving the passive rod 343 to move in a push-pull motion. The first return spring 342 absorbs the push-pull force generated by this push-pull motion. Therefore, when the external unlocking force is removed, the first return spring 342 releases the stored push-pull force, causing the active rod 341 to return to its original position. Through this preferred embodiment, the first return spring 342 is used to store the torque transmitted to the active pull rod 341, and then the restoring force generated by the compression of the first return spring 342 is used to release the torque to the active pull rod 341 to restore it to its initial position, so that when the next unlocking action is performed, the telescopic mechanism 2, the active pull rod 341, the driven pull rod 343 and the locking mechanism 4 can all be in the initial position, which is convenient for the next unlocking step.

[0099] In the battery case unlocking device of this embodiment, the telescopic mechanism 2 includes a telescopic rod 21 and a hollow shaft 22. The mounting base 1 is sleeved outside the hollow shaft 22, and the telescopic rod 21 is inserted into the hollow shaft 22 and can perform telescopic movement within the hollow shaft 22. The telescopic rod 21 is connected to one end of the transmission mechanism 3. Specifically, the hollow shaft 22 is inserted into the frame structure of the guide portion 35, and the telescopic rod 21 is inserted into the hollow shaft 22. When the unlocking external force is applied, the telescopic rod 21 performs telescopic movement, while the hollow shaft 22 remains stationary. Through this preferred embodiment, the hollow shaft 22 is installed outside the telescopic rod 21, so that the telescopic rod 21 can be protected and guided by the hollow shaft 22 during telescopic movement, preventing it from bending and being damaged or the direction of telescopic movement from deviating from the axis of the telescopic rod 21.

[0100] In the battery case unlocking device of this embodiment, a secondary guide hole 221 is provided on the hollow shaft 22. The secondary guide hole 221 extends along the extension and retraction direction of the telescopic rod 21. One end of the transmission mechanism 3 passes through and can slide along the secondary guide hole 221. The connection between one end of the transmission mechanism 3 and the telescopic rod 21 is located in the hollow shaft 22. Specifically, a secondary guide hole 221 is provided on the hollow shaft 22 corresponding to the guide hole of the active column 31. The active column 31 at one end of the transmission mechanism 3 sequentially passes through the guide hole of the active column 31 on the frame structure of the guide portion 35 and the secondary guide hole 221 on the hollow shaft 22, and moves with the telescopic rod 21. Through this preferred embodiment, the active column 31 at one end of the transmission mechanism 3 can move within the hollow shaft 22, protected and guided by the hollow shaft 22, while also saving space.

[0101] In the battery box unlocking device of this embodiment, the end of the hollow shaft 22 away from the mounting base 1 is connected to the fixed base 23. A second return spring 24 is sleeved on the hollow shaft 22. One end of the second return spring 24 is connected to the fixed base 23, and the other end of the second return spring 24 is connected to one end of the transmission mechanism 3. Specifically, when an external force is applied to the mounting base 1, it pushes the hollow shaft 22 to move axially. Therefore, a second return spring 24 is required to ensure that the hollow shaft 22 and the mounting base 1 can return to their initial positions when the external force is removed, so as to avoid affecting the subsequent unlocking action. Through this preferred embodiment, after the transmission mechanism 3 completes the unlocking force transmission, it can automatically reset through the restoring force of the second return spring 24, so as to quickly connect to the next unlocking action.

[0102] In the battery compartment unlocking device of this embodiment, the telescopic rod 21 includes a pressing portion 211 and a transmission shaft 212. The transmission shaft 212 is disposed within the hollow shaft 22. The pressing portion 211 is disposed at the end of the mounting base 1 away from the hollow shaft 22. The transmission shaft 212 is connected to one end of the transmission mechanism 3, and the pressing portion 211 abuts against the end of the transmission shaft 212 away from the transmission mechanism 3. Specifically, after the telescopic rod 21 repeats hundreds or thousands of telescopic movements, it is inevitable that its length and thickness will cause bending. Therefore, in this embodiment, the telescopic rod 21 has a two-part structure: the pressing portion 211 and the transmission shaft 212. The pressing portion 211 and the transmission shaft 212 are not fixedly connected. Instead, the transmission shaft 212 abuts the pressing portion 211 against the mounting base 1 to maintain structural stability. Through this preferred embodiment, the telescopic rod 21 adopts a two-section structure, which gives the telescopic rod 21 a certain "bending" space, that is, the pressing part 211 can undergo a slight displacement relative to the transmission shaft 212 in the radial direction of the transmission shaft 212, thereby avoiding the problem of the integrated telescopic rod 21 bending due to the relative displacement between the two components when it is inserted between the two components.

[0103] In the battery box unlocking device of this embodiment, the pressing part 211 includes a button 2111, a flange 2112, a recessed portion 2113 and a push-up column 2114. The recessed portion 2113 is recessed at one end of the button 2111 close to the transmission shaft 212, the flange 2112 is arranged around the recessed portion 2113, and the push-up column 2114 is passed through the button 2111 and pushes against the transmission shaft 212. Specifically, the restoring force of the second return spring 24 may cause the push portion 211 to be ejected from the mounting seat 1, thereby affecting the next unlocking action. At the same time, when the push portion 211 is pressed in by the unlocking external force, the presence of the hollow shaft 22 may restrict its telescopic movement. Therefore, the push portion 211 includes four parts: a button 2111 for receiving the unlocking external force, a flange 2112 for preventing the push portion 211 from being ejected from the mounting seat 1, a recessed portion 2113 for accommodating the hollow shaft 22 to extend the telescopic distance of the push portion 211, and a support column 2114 for driving the transmission shaft 212 to extend and retract. Through this preferred embodiment, the flange 2112 and the second return spring 24 cooperate to firmly position the telescopic rod 21 in the mounting seat 1 and the hollow shaft 22, while preventing the telescopic rod 211 from being ejected from the mounting seat 1 due to the restoring force of the second return spring 24.

[0104] In the battery box unlocking device of this embodiment, the locking mechanism 4 includes a lock box 41 and a linkage part 42, a locking bracket 43, a stop lock tongue 44 and a main lock tongue 45 arranged in the lock box 41; the linkage part 42 is connected to the end of the transmission mechanism 3 away from the telescopic mechanism 2; one end of the stop lock tongue 44 is fixed on the lock box 41, and the other end of the stop lock tongue 44 can elastically extend out of the lock box 41; the locking bracket 43 is clamped on the linkage part 42, and the locking bracket 43 is connected to the stop lock tongue 44. The movement of the transmission mechanism 3 drives the linkage part 42 to make the locking bracket 43 extend and retract along the telescopic direction of the stop lock tongue 44; the main lock tongue 45 is connected to the locking bracket 43, and the telescopic movement of the locking bracket 43 drives the main lock tongue 45 to extend or retract the lock box 41. When the linkage part 42 transmits the unlocking external force of the transmission mechanism 3 to the main lock tongue 45, the main lock tongue 45 retreats and unlocks. At this time, the anti-retraction lock tongue 44 acts as an energy storage component to store force. When there is no external force on the linkage part 42, the anti-retraction lock tongue 44 releases the stored force, pushes the linkage part 42 open, and drives the main lock tongue 45 to pop out of the lock box 41 through the locking bracket 43. The entire unlocking and resetting action is fast and accurate.

[0105] In the battery box unlocking device of this embodiment, the linkage part 42 includes an unlocking push rod 421, an unlocking swing rod 422 and a locking swing rod 423; the unlocking push rod 421 is connected to one end of the transmission mechanism 3 and moves along the movement direction of the transmission mechanism 3; the unlocking swing rod 422 is connected to the unlocking push rod 421, and the unlocking swing rod 422 is pivoted to the swing shaft fixed to the lock box 41. The movement of the unlocking push rod 421 drives the unlocking swing rod 422 to swing around the swing shaft; one end of the locking swing rod 423 is pivoted to On the rotating shaft fixed on the lock box 41, the other end of the locking rocker arm 423 is mounted on the end of the unlocking rocker arm 422 away from the unlocking push rod 421; the locking bracket 43 is clamped on the end of the locking rocker arm 423 away from the unlocking rocker arm 422, and the locking rocker arm 423 rotates around the rotating shaft to drive the locking bracket 43 to move along the extension and contraction direction of the anti-retraction lock tongue 44, so that the unlocking external force exerted on the unlocking push rod 421 is accurately transmitted to the anti-retraction lock tongue 44 by utilizing the unlocking rocker arm 422 and the locking rocker arm 423.

[0106] In the battery compartment unlocking device of this embodiment, a locking plate 46 is fixed to the locking bracket 43. The locking plate 46 has a sliding claw 461 and a stop claw 462. The sliding claw 461 and the stop claw 462 are linked. The locking tongue 44 has a sliding inclined surface. The sliding claw 461 slides along the sliding inclined surface, driving the stop claw 462 into or out of the retraction path of the main locking tongue 45. In this preferred embodiment, the stop claw 462 is controlled by the sliding claw 461. When the main locking tongue 45 is in the locked state, the stop claw 462 serves to prevent the main locking tongue 45 from retreating.

[0107] In the battery box unlocking device of this embodiment, a safety shaft 47 is further provided in the lock box 41. The safety shaft 47 is disposed in the lock box 41 and extends out of the lock box 41. The safety shaft 47 is retractable in the axial direction and rotates from the unlocked position to the locked position. The safety shaft 47 has a locking post 471. When the safety shaft 47 rotates to the locked position, the main lock tongue 45 extends out of the lock box 41, and the locking post 471 presses against the rear end of the main lock tongue 45. Through this preferred embodiment, the use of the safety shaft 47 in conjunction with the structure of the locking mechanism 4 described above makes the locking mechanism 4 simple and convenient to operate, with high safety performance and intelligence. In the secondary locking state, any erroneous operation due to external forces will not affect the locked state.

[0108] In the battery box unlocking device of this embodiment, a sensing column 472 is provided on the safety shaft 47, and a sensor 48 is provided on the lock box 41. The sensor 48 is used to detect the position of the sensing column 472. When the safety shaft 47 is rotated to the locked position, the sensor 48 is facing the sensing column 472. The sensor 48 gives a signal so that the user can clearly distinguish whether the locking mechanism 4 is in the unlocked state or the locked state.

[0109] In the battery case unlocking device of this embodiment, a pressure plate 49 is fixed to the inner surface of the lock box 41, away from the inner surface of the housing 6 of the battery case. The pressure plate 49 is defined as an unlocking position and a locking position. A locking post 473 is provided on the safety shaft 47. The locking post 473 rotates with the safety shaft 47 to switch between the unlocking position and the locking position. In this embodiment, the pressure plate 49 is fixed to the inner surface of the lock box 41, and the sensor 48 is fixed to the inner side of the pressure plate 49. The safety shaft 47 extends through the pressure plate 49 and the lock box 41. The safety shaft 47 can be elastically pressed in or ejected in its axial direction, cooperating with the locking post 473 provided thereon to switch between the unlocking position and the locking position. This allows manual operation by the user, thereby improving the reliability of the secondary safety function of the safety shaft 47.

[0110] In the battery box unlocking device of this embodiment, the battery box unlocking device also includes a shell 5, the transmission mechanism 3 and the locking mechanism 4 are arranged in the shell 5, and the mounting seat 1 and the telescopic mechanism 2 are telescopically arranged in the shell 5 along the telescopic direction of the telescopic mechanism 2 to avoid the transmission mechanism 3 and the locking mechanism 4 being exposed to the outside, thereby protecting the transmission mechanism 3 and the locking mechanism 4 from damage.

[0111] In this embodiment of the battery box unlocking device, the mounting base 1 includes an electromagnet suction cup, which is mounted on the end of the telescopic mechanism 2, distal from the transmission mechanism 3. Specifically, to unify the battery box's power point and unlocking point, simplifying the battery box's functional components and failure points, and improving operational success rates, the electromagnet suction cup serves as the power point for attracting and connecting with external power equipment. This preferred embodiment allows the battery box and external equipment to be conveniently connected by simply energizing the electromagnet, achieving a high degree of automation and intelligence.

[0112] like Figure 7 As shown, the present invention discloses a battery box, which includes: a box body 6; a battery box unlocking device; a mounting base 1 is arranged on a side of a telescopic mechanism 2 away from the box body 6, the telescopic mechanism 2 and the transmission mechanism 3 are arranged at the end of the box body 6, and the locking mechanism 4 is arranged on the side of the box body 6; the telescopic mechanism 2 performs telescopic movement relative to the end of the box body 6, and the transmission mechanism 3 moves along the end of the box body 6.

[0113] In this embodiment of the battery box, there are two locking mechanisms 4, positioned opposite each other on the sides of the box body 6. There are also two transmission mechanisms 3, one on either side of the telescopic mechanism 2. The telescopic mechanism 2 simultaneously drives both locking mechanisms 4 to lock or unlock via the two transmission mechanisms 3. This preferred embodiment transforms the battery box unlocking mechanism from being located separately on either side of the battery box as in the prior art to a single unlocking point and power point. This simplifies the battery box's functional and failure points, and improves the accuracy and success rate of unlocking the battery box using external devices.

[0114] like Figure 8 and Figure 9 As shown, the present invention discloses a battery box fast battery replacement system, which includes: a battery fixing frame 7, a battery replacement device 8 and a battery box; the battery fixing frame 7 has a locking portion 71, and the locking mechanism 4 is locked with the locking portion 71; the battery replacement device 8 includes a battery replacement device suction cup 81 and an unlocking rod 82 that is telescopically inserted into the battery replacement device suction cup 81, and the unlocking rod 82 is arranged corresponding to the telescopic mechanism 2. The extending movement of the unlocking rod 82 is used to push the telescopic mechanism 2 to retract, driving the locking mechanism 4 to unlock the locking portion 71, and the battery replacement device suction cup 81 connects the battery replacement device 8 to the battery box through the suction mounting seat 1.

[0115] The unlocking rod 82 of the battery exchange device 8 extends and pushes the telescopic rod 21 in the middle of the mounting base 1 of the battery box. The telescopic rod 21 drives the active column 31 to move a certain distance toward the body 6 of the battery box. The active column 31 drives the driven column 32 to move to both sides through the connecting rod 33. In a preferred embodiment, the active column 31 moves 8 mm, and the driven columns 32 on both sides of the active column 31 move 4 mm respectively. By changing the direction of movement without changing the thrust, the transmission rod 34 is driven to push to both sides, driving the main lock tongue 45 of the locking mechanism 4 to retract, thereby completing the unlocking. When it is necessary to lock the body 6 of the battery box to the battery fixing bracket 7, the telescopic rod 21 is pushed back manually or by a control device, pushing the body 6 of the battery box evenly into the battery fixing bracket 7. After it is in place, the locking mechanism 4 of the battery box is automatically locked, and the manual or control device rotates the safety shaft 4790°. The sensor 48 triggers the safety locking signal, confirming that the locking is intact, and completing the locking process.

[0116] When the battery box body 6 is pushed into the battery holder 7, the locking bolt 44 retracts, but maintains a certain degree of pressure, and the main locking bolt 45 extends out of the battery holder 7, and the battery box is locked. When the user manually turns the safety shaft 47 or the control device automatically rotates the safety shaft 47 to twist it 90 degrees, the locking column 471 of the safety shaft 47 presses against the main locking bolt 45. The safety shaft 47 and the main locking bolt 45 are always safely locked. When the locking column 471 reaches the specified position, the sensor 48 is triggered to transmit an effective signal, indicating a safe locking signal, and the locked state of the battery box is a second safety. When the battery box is replaced, the safety shaft 47 must be reset manually or by the control device, the locking bracket 43 falls, and the main locking bolt 45 automatically rebounds using the force stored in the locking bolt 44, and the battery box can be withdrawn from the battery holder 7, realizing the unlocking function.

[0117] The battery box unlocking device, battery box and battery box quick battery replacement system provided by the present invention utilize the transmission mechanism 3 to transmit the torque generated by the telescopic movement of the telescopic mechanism 2 under the unlocking external force to the locking mechanism 4, and integrate multiple functional components on the same battery box to achieve one-point action and multi-point unlocking, which can realize automatic unlocking and locking, and has a simplified mechanical structure, is safe and reliable, has a correct linkage effect, has high unlocking accuracy, and avoids the problem of damage to the locking and unlocking components caused by the hard connection of the unlocking device and the locking mechanism 4 on both sides.

[0118] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A battery box unlocking device, characterized in that: These include: Telescopic mechanism, transmission mechanism and locking mechanism; The locking mechanism is used to lock and fix the battery box body on the battery fixing frame of the electric vehicle; The telescopic mechanism performs telescopic motion relative to the transmission mechanism under the action of an unlocking external force; One end of the transmission mechanism is connected to the telescopic mechanism, and the other end of the transmission mechanism is connected to the locking mechanism; The telescopic movement of the telescopic mechanism drives the transmission mechanism to move between the telescopic mechanism and the locking mechanism, and the movement of the transmission mechanism controls the locking or unlocking of the locking mechanism; The locking mechanism includes a lock box and a linkage portion, a locking bracket and a main lock tongue arranged in the lock box; The linkage portion is connected to an end of the transmission mechanism away from the telescopic mechanism; The locking bracket is clamped on the linkage part; The main lock tongue is connected to the locking bracket, and the telescopic movement of the locking bracket drives the main lock tongue to extend or retract into the lock box; The locking mechanism further includes a locking tongue disposed in the lock box; One end of the locking tongue is fixed to the lock box, and the other end of the locking tongue can be elastically extended out of the lock box; The locking bracket is connected to the anti-retraction lock tongue, and the movement of the transmission mechanism drives the linkage part to make the locking bracket extend and retract along the extension and retraction direction of the anti-retraction lock tongue; When the linkage part transmits the unlocking external force of the transmission mechanism to the main lock tongue, the main lock tongue retreats and unlocks. At this time, the anti-retraction lock tongue acts as an energy storage component to store force. When there is no external force on the linkage part, the anti-retraction lock tongue releases the stored force, pushes the linkage part open, and drives the main lock tongue to pop out of the lock box through the locking bracket.

2. The battery box unlocking device according to claim 1, characterized in that: The battery box unlocking device further includes a mounting seat, the telescopic mechanism is passed through the mounting seat, and the telescopic mechanism performs telescopic motion relative to the transmission mechanism in the mounting seat under the action of an unlocking external force.

3. The battery box unlocking device according to claim 1, characterized in that: The transmission mechanism includes an active column, a driven column, a connecting rod, a transmission rod and a guide portion; The active column is connected to the telescopic mechanism, the driven column is connected to one end of the transmission rod, and the connecting rod is connected to the active column and the driven column respectively, and the connecting rod can rotate around the axis of the active column and the driven column; The other end of the transmission rod is connected to the locking mechanism; The guide portion is provided with a driven guide hole extending along the moving direction of the transmission rod, and the driven column passes through the driven guide hole and slides in the driven guide hole.

4. The battery box unlocking device according to claim 3, characterized in that: An active guide hole extending along the telescopic direction of the telescopic mechanism is formed on the guide portion, and the active column passes through the active guide hole and slides in the active guide hole.

5. The battery box unlocking device according to claim 3, characterized in that: A transmission guide hole is provided on the guide portion, and the transmission rod passes through the transmission guide hole and moves in the transmission guide hole.

6. The battery box unlocking device according to claim 3, characterized in that: The transmission rod includes an active pull rod, a first return spring and a driven pull rod, the active pull rod is connected to the driven column, the active pull rod is connected to the driven pull rod, and the driven pull rod is connected to the locking mechanism. The first return spring is sleeved on the active pull rod, one end of the first return spring is connected to the guide part, and the other end of the first return spring is connected to the active pull rod.

7. The battery box unlocking device according to claim 2, characterized in that: The telescopic mechanism includes a telescopic rod and a hollow shaft. The mounting seat is arranged outside the hollow shaft. The telescopic rod is inserted into the hollow shaft and can perform telescopic movement in the hollow shaft. The telescopic rod is connected to one end of the transmission mechanism.

8. The battery box unlocking device according to claim 7, characterized in that: The hollow shaft is provided with a secondary guide hole, which extends along the telescopic direction of the telescopic rod. One end of the transmission mechanism passes through and can slide along the secondary guide hole. The connection between one end of the transmission mechanism and the telescopic rod is located in the hollow shaft.

9. The battery box unlocking device according to claim 7, characterized in that: One end of the hollow shaft away from the mounting seat is connected to a fixing seat, and a second return spring is sleeved on the hollow shaft, one end of the second return spring is connected to the fixing seat, and the other end of the second return spring is connected to one end of the transmission mechanism.

10. The battery box unlocking device according to claim 7, characterized in that: The telescopic rod includes a pressing portion and a transmission shaft, the transmission shaft is passed through the hollow shaft, the pressing portion is passed through the end of the mounting seat away from the hollow shaft, the transmission shaft is connected to one end of the transmission mechanism, and the pressing portion abuts against the end of the transmission shaft away from the transmission mechanism.

11. The battery box unlocking device according to claim 10, characterized in that: The pressing portion includes a button, a flange, a recessed portion and a push-up column. The recessed portion is recessed at one end of the button close to the transmission shaft, the flange is arranged around the recessed portion, and the push-up column is passed through the button and abuts against the transmission shaft.

12. The battery box unlocking device according to claim 1, wherein: The linkage part includes an unlocking push rod, an unlocking rocker rod and a locking rocker rod; The unlocking push rod is connected to one end of the transmission mechanism and moves along the movement direction of the transmission mechanism; The unlocking swing rod is connected to the unlocking push rod, and the unlocking swing rod is pivotally connected to a swing shaft fixed to the lock box, and the movement of the unlocking push rod drives the unlocking swing rod to swing around the swing shaft; One end of the locking rocker is pivotally connected to a rotating shaft fixed to the lock box, and the other end of the locking rocker is mounted on an end of the unlocking rocker away from the unlocking push rod; The locking bracket is clamped on one end of the locking rocker arm away from the unlocking rocker arm, and the locking rocker arm rotates around the rotating shaft to drive the locking bracket to move along the extension and retraction direction of the locking tongue.

13. The battery box unlocking device according to claim 1, wherein: A locking plate is fixed on the locking bracket, and a sliding claw and a stop claw are provided on the locking plate. The sliding claw and the stop claw are linked. A sliding inclined surface is provided on the anti-retraction lock tongue. The sliding claw slides along the sliding inclined surface to drive the stop claw to enter or exit the retraction path of the main lock tongue.

14. The battery box unlocking device according to claim 1, wherein: The lock box is also provided with a safety shaft, which is passed through the lock box and extends out of the lock box. The safety shaft is retractable in the axial direction. The safety shaft rotates from the unlocking position to the locking position by self-rotation. A locking column is provided on the safety shaft. When the safety shaft rotates to the locking position, the main lock tongue extends out of the lock box, and the locking column supports the rear end of the main lock tongue.

15. The battery box unlocking device according to claim 14, characterized in that: The safety shaft is provided with a sensing column, and the lock box is provided with a sensor, which is used to detect the position of the sensing column. When the safety shaft is rotated to the locking position, the sensor faces the sensing column.

16. The battery box unlocking device according to claim 14, characterized in that: A pressure plate is fixed to the inner surface of the lock box away from the battery box, and an unlocking position and a locking position are provided on the pressure plate. A locking column is provided on the safety shaft, and the locking column rotates with the safety shaft for switching between the unlocking position and the locking position.

17. The battery box unlocking device according to claim 2, characterized in that: The battery box unlocking device further includes a shell, the transmission mechanism and the locking mechanism are arranged in the shell, and the mounting seat and the telescopic mechanism are telescopically arranged in the shell along the telescopic direction of the telescopic mechanism.

18. The battery box unlocking device according to any one of claims 2, 7-11, and 17, characterized in that: The mounting seat comprises an electromagnet sucker, and the electromagnet sucker is sleeved on an end of the telescopic mechanism away from the transmission mechanism.

19. A battery box, characterized in that: These include: Box; The battery box unlocking device according to any one of claims 1 to 18; The telescopic mechanism and the transmission mechanism are arranged at the end of the box body, and the locking mechanism is arranged at the side of the box body; The telescopic mechanism performs telescopic movement relative to the end of the box body, and the transmission mechanism moves along the end of the box body.

20. The battery box according to claim 19, wherein: The battery box unlocking device includes a mounting seat, which is arranged on a side of the telescopic mechanism away from the box body.

21. The battery box according to claim 19, wherein: There are two locking mechanisms, which are arranged oppositely on two sides of the box body; There are two transmission mechanisms, and the two transmission mechanisms are respectively located on both sides of the telescopic mechanism; The telescopic mechanism drives the two locking mechanisms to be locked or unlocked simultaneously through the two transmission mechanisms.

22. A battery box rapid replacement system, characterized in that: These include: A battery holder, a battery replacement device, and a battery box as claimed in any one of claims 19 to 21; The battery fixing frame has a locking portion, and the locking mechanism is locked and matched with the locking portion; The battery exchange device includes a battery exchange device suction cup and an unlocking rod that is telescopically inserted into the battery exchange device suction cup. The unlocking rod is arranged corresponding to the telescopic mechanism. The extending movement of the unlocking rod is used to push the telescopic mechanism to retract, driving the locking mechanism and the locking part to unlock. The battery exchange device suction cup connects the battery exchange device and the battery box together by attracting the mounting seat of the battery box unlocking device.

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