Unlocking apparatus, battery swapping device, and battery swapping trolley

Abstract

An unlocking apparatus, which is used for unlocking a locking mechanism for locking a battery pack, and comprises a mobile mechanism, an unlocking mechanism, and a switching mechanism. The mobile mechanism is connected to the unlocking mechanism by means of the switching mechanism, and the mobile mechanism can move in a first direction and drive the switching mechanism to move relative to the mobile mechanism, such that the unlocking mechanism moves in a second direction perpendicular to the first direction, thereby performing unlocking by the unlocking mechanism. Also provided are a battery swapping device and a battery swapping trolley. By means of the switching mechanism, movement of the mobile mechanism in the first direction is switched to movement of the unlocking mechanism in the second direction, such that a locking mechanism can work in conjunction with the unlocking mechanism after the unlocking mechanism moves in the second direction by a preset distance, thereby unlocking the battery pack; and by means of cooperation of the mobile mechanism and the switching mechanism, lifting / lowering of the unlocking mechanism in the second direction is implemented, thereby improving the compactness of the unlocking apparatus.

Description

Unlocking device, battery swapping equipment and battery swapping vehicle

[0001] This application claims priority to Chinese patent applications filed on September 28, 2023, with application numbers 2023112797381, 2023112844202, 2023112809711, and 2023112818072. This application incorporates the entirety of the aforementioned Chinese patent applications. Technical Field

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

[0003] With the development and popularization of new energy vehicles, battery pack quick-change technology has also developed rapidly. At present, the quick-change technology for small passenger cars is the most mature. The batteries of passenger cars are fixed to the chassis of the vehicle. Therefore, when replacing the battery pack, a special battery-changing cart is also required to move to the bottom of the vehicle to remove or install the battery. Moreover, due to the low weight of passenger cars, the volume of the battery pack is relatively small, and the operability of battery replacement is very convenient. In the process of locking and unlocking the locking mechanism, an unlocking component is required to cooperate with the locking mechanism to realize the corresponding operation. Generally, the unlocking component is installed on the battery-changing equipment, so that the battery-changing equipment can lock or unlock the battery pack while positioning and supporting the battery, thereby realizing the quick replacement of the battery pack. The existing unlocking component has a large overall structure and is complex to assemble, which makes it inconvenient to disassemble and is not conducive to subsequent repair and maintenance.

[0004] Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the current unlocking device structure in the prior art that is not compact enough and is complicated, and to provide an unlocking device, a battery replacement device and a battery replacement vehicle.

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

[0007] An unlocking device is used to unlock the locking mechanism of a locked battery pack. The unlocking device includes a moving mechanism, an unlocking mechanism and a conversion mechanism. The moving mechanism is connected to the unlocking mechanism through the conversion mechanism. The moving mechanism can move along a first direction and drive the conversion mechanism to move relative to the moving mechanism, so that the unlocking mechanism moves along a second direction perpendicular to the first direction to unlock the unlocking mechanism.

[0008] A preferred unlocking device is used to unlock the locking mechanism of the locked battery pack, and the unlocking device includes a moving mechanism, a conversion mechanism and an unlocking mechanism. The two ends of the conversion mechanism can be rotatably connected between the moving mechanism and the unlocking mechanism. The moving mechanism can move back and forth along a first direction and drive the conversion mechanism to rotate a preset angle relative to the moving mechanism, so that the unlocking mechanism moves a preset distance along a second direction perpendicular to the first direction, so that the unlocking mechanism cooperates with the locking mechanism and unlocks.

[0009] In this solution, the movement of the moving mechanism in the first direction is converted into the movement of the unlocking mechanism in the second direction through a conversion mechanism, so that the unlocking mechanism can cooperate with the unlocking mechanism after moving a preset distance in the second direction, thereby realizing the unlocking of the battery pack; through the cooperation between the moving mechanism and the conversion mechanism, the lifting and lowering of the unlocking mechanism in the second direction is realized, which reduces the complexity of the unlocking device structure and makes the overall structure of the unlocking device simple, thereby improving the compactness of the unlocking device, and then miniaturizing the structure of the unlocking device, so that the battery-exchange vehicle can also be more compact; secondly, due to the adoption of the above-mentioned structural form, the height of the unlocking device in the second direction can be reduced, further improving the compactness of the unlocking device structure; finally, due to the low complexity of the unlocking device, the assembly man-hours of the unlocking device are also reduced, thereby improving the efficiency of assembly and maintenance of the unlocking device.

[0010] Preferably, the end of the conversion mechanism connected to the unlocking mechanism is restricted to movement only in the second direction, the conversion mechanism is pivotally connected to the moving mechanism, and the conversion mechanism and the moving mechanism are arranged at an angle. In this solution, the above-mentioned structural form is adopted, and the end of the conversion mechanism connected to the unlocking mechanism is configured to move in the second direction, so that the conversion mechanism drives the unlocking mechanism to move only in the second direction, thereby improving the accuracy of the unlocking mechanism and the locking mechanism in unlocking, and improving the efficiency of unlocking. In addition, the conversion mechanism is pivotally connected to the moving mechanism, and the conversion mechanism and the moving mechanism are arranged at an angle, so that the movement of the moving mechanism in the first direction can be converted into the movement of the unlocking mechanism in the second direction.

[0011] Preferably, the conversion mechanism includes a connecting member and a conversion member, wherein the ends of the conversion member are pivotally connected to the moving mechanism and the connecting member, respectively. The connecting member is used to install the unlocking mechanism, and the conversion member is arranged at an angle to the moving mechanism; wherein the conversion member and the connecting member are pivotally connected via a pivot axis, and the projection of the unlocking mechanism and the pivot axis in the second direction at least partially overlap. In this embodiment, the above-mentioned structural form is adopted, and the connection member is provided to facilitate the installation and fixation of the unlocking mechanism, while improving the stability of the unlocking mechanism during movement with the conversion mechanism. The conversion member is arranged at an angle to the moving mechanism, and the conversion member cooperates with the moving mechanism and the connecting member, respectively, to convert the movement of the moving mechanism in the first direction into the movement of the unlocking mechanism in the second direction. In other words, the above-mentioned simple structure can achieve conversion in the moving direction, simplifying the overall structure of the unlocking device and improving the stability and reliability of the unlocking device during operation.

[0012] Preferably, the unlocking device also includes a shell and a guide block, a housing is provided in the shell, the moving mechanism and the conversion mechanism are provided in the housing, the guide block is provided in the housing, and at least a portion of the housing serves as a slide groove of the guide block, so that the guide block moves in the slide groove to drive the moving mechanism connected to the guide block to move along the first direction. In this solution, the above-mentioned structural form is adopted, and the shell is used to accommodate the moving mechanism, the conversion mechanism and the guide block, so that the unlocking device can be assembled into an integral module, which is convenient for subsequent installation in the form of a module on the battery-exchange vehicle; at the same time, the shell can also protect the moving mechanism, the conversion mechanism and the guide block; in addition, the setting of the slide groove can provide guidance for the movement of the guide block, so that the guide block can drive the moving mechanism to move along the first direction, thereby improving the stability of the movement of the guide block and the moving mechanism.

[0013] Preferably, at least two side walls of the accommodating chamber located on either side of the first direction are provided with guide surfaces forming the slide grooves to engage with the guide block, and the coefficient of friction of the guide surfaces is lower than the coefficient of friction of the other walls of the accommodating chamber. In this embodiment, the above-mentioned structure reduces the friction of the guide block and increases its speed. Furthermore, the above-mentioned structure reduces the wear of the guide block and increases its service life.

[0014] Preferably, the sidewall forming the slide groove is provided with a receiving groove, a guide member is provided within the receiving groove, and the guide surface is provided on the surface of the guide member facing the guide block. In this solution, the above-mentioned structural form can provide guidance to the guide block via the surface of the guide member facing the guide block, so that the guide block can drive the moving mechanism to move in the first direction, thereby improving the stability of the movement of the guide block and the moving mechanism. The guide member is provided in the receiving groove, which reduces the material requirements for other parts of the housing, thereby reducing manufacturing costs. At the same time, when the guide member becomes worn and needs to be replaced, only the guide member can be replaced without affecting other parts of the housing, thereby reducing subsequent maintenance and repair costs.

[0015] Preferably, the conversion mechanism further includes a limiting member, the limiting member including a limiting groove provided on the side wall, the limiting groove being slidably connected to the pivot shaft, and the limiting groove extending along the second direction. In this solution, the above-mentioned structural form is adopted, the connecting member and the conversion member are rotationally connected via the pivot shaft, and the pivot shaft is slidably connected to the limiting groove extending along the second direction, thereby realizing that the movement of the moving mechanism in the first direction is converted into the movement of the unlocking mechanism in the second direction; in addition, the limiting groove extends along the second direction, which can provide a guide for the movement of the pivot shaft, so that the pivot shaft can move along the extension direction of the limiting groove, thereby driving the unlocking mechanism to move only in the second direction, thereby improving the stability and reliability of the unlocking mechanism in the second direction, thereby improving the accuracy of the unlocking mechanism and the locking mechanism in cooperating to unlock, and improving the efficiency of unlocking.

[0016] Preferably, the conversion mechanism further includes a limiting member, the limiting member including a limiting surface, the limiting surface being provided on the guide block and at least covering the projection area of ​​the connector on the guide block along the second direction, the limiting surface being configured to abut against a surface of the connector away from the locking mechanism. In this embodiment, the above-described structural form is adopted, and the limiting surface can limit the movement of the connector away from the locking mechanism, preventing the connector from moving too far away from the locking mechanism, thereby reducing the travel required for the unlocking mechanism and the locking mechanism to cooperate, improving the efficiency of the cooperation between the unlocking mechanism and the locking mechanism, and thus improving the efficiency of unlocking the battery pack.

[0017] Preferably, the guide block defines a groove at one end proximal to the connector, with the limiting surface located at the bottom of the groove. In this embodiment, the groove prevents the connector from traveling too far away from the locking mechanism, thereby improving the efficiency of the unlocking and locking mechanisms, thereby enhancing the efficiency of unlocking the battery pack.

[0018] Preferably, the housing is further provided with a sliding sleeve, disposed on a surface of the housing proximate to the unlocking mechanism. A connecting hole is defined within the sliding sleeve, the axis of which coincides with the axis of the unlocking mechanism, and the connecting hole is adapted for sliding engagement with the unlocking mechanism. In this embodiment, the aforementioned structure allows the sliding sleeve to guide the unlocking mechanism, improving the stability of the unlocking mechanism's movement. Furthermore, the sliding sleeve reduces friction within the unlocking mechanism, reducing wear and tear, and thereby increasing its service life.

[0019] Preferably, the movement mechanism includes an end plate and a connecting rod, with the ends of the connecting rod respectively connected to the end plate and the conversion mechanism. The guide block is disposed on the connecting rod and located between the end plate and the conversion mechanism, so that the end plate can drive the connecting rod to move in the first direction. In this solution, the above-mentioned structure is adopted, with the ends of the connecting rod respectively connected to the end plate and the conversion mechanism. Guided by the guide block, the end plate can drive the connecting rod to move in the first direction, thereby enabling the conversion mechanism to drive the unlocking mechanism to move in the second direction. As a result, the movement mechanism is simple and easy to implement, while stably and reliably driving the conversion mechanism and thus the unlocking mechanism to move in the second direction.

[0020] Preferably, the unlocking device further includes a drive mechanism attached to the outer wall of the housing, connected to the end plate of the movable mechanism, and moving in the same direction as the movable mechanism. In this embodiment, the drive mechanism provides power to the end plate or movable mechanism, thereby achieving automated control of the unlocking device. Furthermore, the close proximity of the drive mechanism to the housing makes the unlocking device compact and space-efficient.

[0021] Preferably, the unlocking mechanism includes a body and a rod, wherein the body defines a sliding cavity with an opening, and the rod extends from the opening into one end of the sliding cavity and is retractable relative to the body in the second direction; the end of the body away from the rod is connected to the conversion mechanism. In this solution, the above-mentioned structure is adopted, and by making the rod retractable relative to the body, a buffering effect is provided when the unlocking mechanism and the locking mechanism come into contact. When the unlocking mechanism moves excessively, the rod can absorb and disperse some of the force and impact, preventing excessive force from being transmitted to the body and the locking mechanism, thereby reducing the risk of structural damage, protecting the entire unlocking device and related mechanical structures, and extending their service life and reliability.

[0022] The present invention discloses a battery-swapping trolley, which includes the unlocking device described above. In this solution, the movement of the moving mechanism in the first direction is converted into the movement of the unlocking mechanism in the second direction by a conversion mechanism, so that the unlocking mechanism can cooperate with the unlocking mechanism after moving a preset distance in the second direction, thereby realizing the unlocking of the battery pack; through the cooperation between the moving mechanism and the conversion mechanism, the lifting and lowering of the unlocking mechanism in the second direction is realized, which reduces the complexity of the unlocking device structure, makes the overall structure of the unlocking device simple, thereby improving the compactness of the unlocking device, and further miniaturizing the structure of the unlocking device, thereby making the battery-swapping trolley more compact; secondly, due to the adoption of the above-mentioned structural form, the height of the unlocking device in the second direction can be reduced, further improving the compactness of the unlocking device structure; finally, due to the low complexity of the unlocking device, the assembly time of the unlocking device is also reduced, thereby improving the efficiency of assembly and maintenance of the unlocking device.

[0023] Preferably, an unlocking device is used to unlock a locking mechanism of a locked battery pack, and the unlocking device includes a moving mechanism, a conversion mechanism and an unlocking mechanism, the conversion mechanism includes a first conversion member and a second conversion member, the first end of the first conversion member and the third end of the second conversion member are arranged at an angle and are both rotatably connected to the moving mechanism, the second end of the first conversion member is connected to the unlocking mechanism, and the fourth end of the second conversion member is set as a free end, the moving mechanism can move back and forth along the first direction and drive the first conversion member and the second conversion member to rotate relative to the moving mechanism so that the second end and the fourth end move in opposite directions along a second direction perpendicular to the first direction, and then the unlocking mechanism moves a preset distance along the second direction to cooperate with the unlocking mechanism and unlock. In this solution, the movement of the moving mechanism drives the second end to move in the second direction, converting the movement of the moving mechanism in the first direction into movement of the unlocking mechanism in the second direction. This allows the unlocking mechanism to move a preset distance in the second direction and then engage with the unlocking mechanism, thereby unlocking the battery pack. The coordinated use of the moving mechanism and the conversion mechanism allows the unlocking mechanism to be raised and lowered in the second direction, reducing the complexity of the unlocking mechanism and miniaturizing the overall structure of the unlocking mechanism, thereby making the battery swap vehicle more compact. Furthermore, with this structural form, the first and second conversion members form a scissor-like structure relative to each other, so that during movement of the first and third ends in the first direction, the second end moves in opposite directions to the fourth end. This allows the unlocking mechanism connected to the second end to be raised and lowered in the second direction accordingly, further enhancing the stability and reliability of the second end's movement through the movement of the fourth end. This ensures the stability and reliability of the unlocking mechanism connected to the second end, thereby improving the stability and reliability of the battery pack unlocking. Finally, the reduced complexity of the unlocking mechanism reduces the assembly time of the unlocking mechanism, thereby improving the efficiency of assembly and maintenance of the unlocking mechanism.

[0024] Preferably, the unlocking device further comprises a housing, the housing comprising two side plates respectively located on either side of the conversion mechanism along the first direction, at least one of the side plates being provided with a first slide and a second slide respectively extending along the second direction, the second end of the first conversion member cooperating with the first slide, and the fourth end of the second conversion member cooperating with the second slide, so that when the first conversion member and the second conversion member rotate relative to the moving mechanism, the second end and the fourth end respectively move in opposite directions along the first slide and the second slide. In this solution, the above-mentioned structural form is adopted, and through the cooperation of the first slide and the second end, and the cooperation of the second slide and the fourth end, a guide can be provided for the movement of the second end and the fourth end, so that both the second end and the fourth end can move in a preset direction, thereby improving the stability and reliability of the movement of the second end and the fourth end, thereby improving the stability and reliability of the movement of the unlocking mechanism connected to the second end in the second direction, improving the accuracy of unlocking by the cooperation between the unlocking mechanism and the locking mechanism, and improving the efficiency of unlocking.

[0025] Preferably, at least one of the side panels is further provided with a third slide extending along the first direction, and the first end of the first conversion member and the third end of the second conversion member are both engaged with the third slide, so that the moving mechanism drives the first end and the third end to move along the first direction while the second end and the fourth end move in the opposite direction. In this solution, the above-mentioned structural form is adopted, and the first end and the third end are both engaged with the third slide, thereby providing guidance for the movement of the first end and the third end, so that the first end and the third end can both move in a certain direction, thereby improving the stability and reliability of the movement of the first end and the third end, and further, under the drive of the first end and the third end, the stability and reliability of the movement of the second end and the fourth end are also improved, further improving the stability and reliability of the unlocking mechanism in the second direction, and also improving the accuracy and efficiency of the unlocking by the unlocking mechanism and the locking mechanism.

[0026] Preferably, there are two first and second conversion members, each with two second ends connected to either side of the unlocking mechanism via a first connecting shaft, two fourth ends mating with the second chute via a second connecting shaft, and two first ends and two third ends connected to either side of the moving mechanism via a third connecting shaft. In this embodiment, the above-described structure, with two first and second conversion members each, and two second ends connected to either side of the unlocking mechanism via the first connecting shaft, makes the entire conversion mechanism more stable and reliable, and also improves the stability of the connection and support of the unlocking mechanism; thereby improving the stability and reliability of the unlocking mechanism's movement, and further improving the accuracy and efficiency of the unlocking mechanism's cooperation with the locking mechanism. The two fourth ends mating with the second chute via the second connecting shaft, allowing them to move along the second chute driven by the second connecting shaft, allowing them to move in a certain direction, improving the stability and reliability of the fourth end's movement. The two first ends and two third ends are connected to either side of the moving mechanism via the third connecting shaft, facilitating the connection of the two first ends and two third ends to the moving mechanism, resulting in a compact structure.

[0027] Preferably, the number of the first chute and the number of the second chute are both two, which are respectively located at corresponding positions of the two side plates, and first rolling elements are provided at both ends of the first connecting shaft, and the rolling surfaces of the first rolling elements are fitted one-to-one with the groove walls of the first chute; and / or, the two second connecting shafts are both connected with second rolling elements, and the rolling surfaces of the second rolling elements are fitted one-to-one with the groove walls of the second chute; and / or, the number of the third chute is two, which are respectively located at corresponding positions of the two side plates, and the two third chute are respectively adapted to the two ends of the third connecting shaft. In the present solution, the above-mentioned structural form is adopted, by the rolling surface of the first rolling element and the groove wall of the first slide groove being fitted together, the friction between the first rolling element and the first slide groove is reduced, and the smoothness of the movement of the first connecting shaft relative to the first slide groove and the service life of the first rolling element and the first slide groove are improved; by the rolling surface of the second rolling element and the groove wall of the second slide groove being fitted together, the friction between the second rolling element and the second slide groove is reduced, and the smoothness of the movement of the second connecting shaft relative to the second slide groove and the service life of the second rolling element and the second slide groove are improved; in addition, the two first rolling elements and the two first slide grooves and the second rolling elements and the second slide groove are all connected one-to-one, which improves the stability and reliability of the movement of the unlocking mechanism, and the number of the third slide grooves is two, and the two third slide grooves are respectively adapted to the two ends of the third connecting shaft, thereby further improving the accuracy of the unlocking by the unlocking mechanism and the locking mechanism, and improving the unlocking efficiency.

[0028] Preferably, the axes of the first chute and the second chute in the second direction coincide and pass through each other, and the third chute is connected to the first chute and the second chute respectively; when the second end moves to the upper limit point of the first chute, the unlocking mechanism moves to the unlocking position of the unlocking mechanism; when the first end and the third end move to the initial limit point of the third chute, the unlocking mechanism moves to the initial position. In this solution, the first conversion member and the second conversion member can be limited by the upper limit point of the first chute and the initial limit point of the third chute, and then the unlocking mechanism can be limited. At the same time, since the unlocking mechanism can be directly in place without the need for additional in-place detection, the unlocking efficiency can be improved, thereby increasing the speed of disassembling the battery pack of the battery-exchange vehicle. In addition, the above-mentioned structural form improves the assembly efficiency, and the provision of the chute reduces the weight of the unlocking device, which is conducive to the lightweighting of the unlocking device.

[0029] Preferably, the housing further comprises a top plate, the ends of which are respectively connected to at least portions of the two side plates. The top plate is provided with a sliding sleeve having a connecting hole defined therein, the axis of which coincides with the axis of the unlocking mechanism, and the connecting hole is adapted for sliding connection with the unlocking mechanism. In this embodiment, the above-described structural form allows the sliding sleeve to guide the unlocking mechanism, thereby improving the stability of the unlocking mechanism's movement. The sliding sleeve also reduces friction within the unlocking mechanism, thereby reducing wear and tear on the unlocking mechanism and increasing its service life. Furthermore, the ends of the top plate are respectively connected to at least portions of the two side plates, thereby increasing the structural strength of the side and top plates, thereby improving the overall structural strength of the unlocking mechanism.

[0030] Preferably, the unlocking device further includes a drive mechanism connected to the moving mechanism and located along the first direction at the end of the moving mechanism distal from the conversion mechanism. In this embodiment, the drive mechanism drives the moving mechanism, which in turn drives the conversion mechanism, thereby converting movement of the moving mechanism in the first direction into movement of the unlocking mechanism in the second direction. In other words, with this structure, the drive mechanism provides power to the moving mechanism, thereby achieving automated control of the unlocking device.

[0031] Preferably, the housing further comprises a vertical plate located on the side of the movable mechanism close to the driving mechanism, the two sides of the vertical plate being connected to the two side plates respectively, a through hole and an opening being provided on the vertical plate, the push rod of the driving mechanism being connected to the movable mechanism after passing through the through hole, and the opening extending from the top or bottom of the vertical plate to the through hole and being connected to the through hole. In this solution, the two sides of the vertical plate are respectively connected to the two side plates, thereby improving the strength of the overall structure of the housing; in addition, the push rod of the driving mechanism needs to pass through the through hole before being connected to the movable mechanism, and the opening extending from the top or bottom of the side plate to the through hole and being connected to the through hole; thus, when the push rod is installed, the push rod can move directly from the opening to the position of the through hole, facilitating the installation of the driving mechanism, and adopting the above-mentioned structural form avoids interference between the driving mechanism and the vertical plate, improving the stability and reliability of the movement of the push rod, thereby improving the stability and reliability of the movement of the movable mechanism, the conversion mechanism and the unlocking mechanism under the drive of the push rod.

[0032] Preferably, the shell further includes a bottom plate, which is arranged opposite to the top plate, and the two ends of the bottom plate are respectively connected to at least part of the two side plates to form a receiving cavity for accommodating the moving mechanism and the conversion mechanism. In this solution, the two ends of the bottom plate are respectively connected to the two side plates, which further improves the overall structural strength of the shell; the bottom plate, the two side plates and the top plate form a receiving cavity for accommodating the moving mechanism and the conversion mechanism, so that the moving mechanism and the conversion mechanism can be protected by the receiving cavity, thereby improving the service life of the moving mechanism and the conversion mechanism. In addition, with the above-mentioned structural form, since the receiving cavity can accommodate the moving mechanism and the conversion mechanism, the unlocking device can be assembled into an integral module, which is convenient for subsequent installation in a modular form on the battery-exchange vehicle.

[0033] Preferably, the unlocking mechanism includes a mounting part and an unlocking part, the mounting part is used to install the unlocking part, and the mounting part is connected to the second end; the unlocking part includes a body and a rod body, a sliding cavity with a mounting opening is provided in the body, one end of the rod body extends from the mounting opening into the sliding cavity and is slidable relative to the sliding cavity, and the sliding direction is the second direction; the end of the body away from the rod body is fixed on the mounting part. In this solution, the connection between the second end and the unlocking part is facilitated by providing the mounting part. In addition, the above-mentioned structural form is adopted, and by setting the rod body to slide relative to the sliding cavity, a buffering effect is played when the unlocking mechanism contacts the locking mechanism. When the unlocking mechanism moves too much, the rod body can absorb and disperse part of the force and impact, avoiding excessive force from being transmitted to the body and the locking mechanism, thereby reducing the risk of structural damage, protecting the entire unlocking device and related mechanical structures, and extending their service life and reliability.

[0034] The present invention provides a battery-swap vehicle, comprising the unlocking device described above. In this embodiment, the movement of a moving mechanism drives the second end to move in a second direction, converting the movement of the moving mechanism in a first direction into movement of the unlocking mechanism in the second direction. This allows the unlocking mechanism to move a preset distance in the second direction and then engage with the unlocking mechanism, thereby unlocking the battery pack. The coordinated use of the moving mechanism and the conversion mechanism allows the unlocking mechanism to be raised and lowered in the second direction, reducing the complexity of the unlocking device and miniaturizing the overall structure of the unlocking device, thereby making the battery-swap vehicle more compact. Furthermore, with the above-described structure, the first and second conversion members form a scissor-like structure, so that during movement of the first and third ends in the first direction, the second end moves in opposite directions to the fourth end. This allows the unlocking mechanism connected to the second end to be raised and lowered in the second direction, guiding the movement of the second end through the movement of the fourth end. This improves the stability and reliability of the movement of the second end, thereby ensuring the stability and reliability of the movement of the unlocking mechanism connected to the second end, and thereby improving the stability and reliability of unlocking the battery pack. Finally, the reduced complexity of the unlocking device reduces the assembly time of the unlocking device, thereby improving the efficiency of assembly and maintenance of the unlocking device.

[0035] Preferably, an unlocking assembly includes a main body and an unlocking rod installed on the main body, the unlocking rod is used to unlock the locking mechanism of the locked battery pack, the unlocking assembly also includes: a follower, the follower is arranged on the unlocking rod, and the unlocking rod is arranged to be telescopically movable only along the second direction; an active part, the active part is provided with a mating part that cooperates with the follower, and the active part is arranged to be movable along a first direction perpendicular to the second direction, the mating part is arranged obliquely and forms an angle with the first direction, and the movement of the active part along the first direction can drive the follower to move relative to the mating part to drive the unlocking rod to move along the second direction. In this solution, key components such as the unlocking rod, follower and active part are compactly integrated together. This structural compactness can significantly reduce the overall volume, making the unlocking component easier to assemble in the battery swap station equipment and easy to implement; the active part can move along the first direction perpendicular to the second direction, and the oblique setting of the matching part enables the movement of the active part in the first direction to effectively drive the relative movement of the follower, thereby driving the unlocking rod to move along the second direction to achieve the unlocking operation. Through the movement of the active part in the first direction, the movement is converted into the movement of the unlocking rod along the second direction. The unlocking action of the unlocking component no longer depends on the driving force in the first direction, and can adapt to locking mechanisms of different types and sizes. Regardless of whether it is a horizontally moving or vertically moving locking mechanism, the unlocking component can be unlocked by the movement of the active part, thereby improving the adaptability of the unlocking structure and making the unlocking operation more flexible. In addition, the movement range and speed of the active part in the first direction can be adjusted according to the characteristics and requirements of the locking mechanism to achieve precise unlocking operation.

[0036] Preferably, the unlocking assembly further includes a guide rail extending along the second direction and a guide block cooperating with the guide rail, the guide rail being fixed to the main body, the guide block being connected to the unlocking rod, and the guide block being movable along the extension direction of the guide rail to drive the unlocking rod to move along the second direction. In this solution, the combination of the guide rail and the guide block makes the unlocking operation more stable, precise, and reliable. The guide rail provides a fixed track to ensure that the movement trajectory of the unlocking rod always remains consistent, reducing the possibility of swinging and deviation. The cooperation between the guide block and the guide rail enables the unlocking rod to move along the extension direction of the guide rail, ensuring smooth movement and reaching the accurate position during the unlocking process, thereby ensuring the stability and accuracy of the unlocking operation, reducing the risk of unlocking failure, and improving the safety of the unlocking operation.

[0037] Preferably, one end of the unlocking lever is located within the main body, and the other end of the unlocking lever extends out of the main body, and the follower is disposed on the end of the unlocking lever located within the main body. In this embodiment, by securing one end of the unlocking lever within the main body, the unlocking lever can move more stably during the unlocking process, reducing the possibility of the lever loosening or shaking during operation. At the same time, this design can also protect the unlocking lever from external interference or damage. By mounting the follower at the inner end of the unlocking lever, looseness or swinging of the connection can be reduced, ensuring that the follower can accurately follow the movement of the unlocking lever during the unlocking process, thereby improving the accuracy of the unlocking operation.

[0038] Preferably, the unlocking assembly further comprises a connecting plate, which is arranged in the main body and fixed to the unlocking rod, wherein the connecting plate is connected to the follower on the side facing the active part, and is connected to the guide block on the side facing away from the active part. In this solution, the connecting plate ensures the stability and reliability of the unlocking rod by fixing the connection between the unlocking rod and the main body. At the same time, the connecting plate also provides connection points with the follower and the guide block, so that the follower, the unlocking rod and the guide block can move in coordination with each other. The follower and the guide block can be connected to the connecting plate relatively easily, thereby simplifying the assembly process. Since the necessary functions and connection points are integrated on the connecting plate, too many scattered components are avoided, thereby reducing the complexity of the overall structure and making the structure more compact. The connecting plate is connected to the guide block on the side facing away from the active part, ensuring that the guide block can stably guide the movement of the unlocking rod and avoid swinging or deviation during the unlocking process. Through the arrangement and connection layout of the connecting plate, the various parts of the unlocking assembly can work closely together to achieve stability and accuracy in the unlocking process.

[0039] Preferably, the follower comprises a fixed shaft fixed to the unlocking lever and a rolling member rotatably mounted on the fixed shaft, the mating member being a chute, with the rolling surface of the rolling member engaging the chute. In this embodiment, the combination of the fixed shaft and the rolling member, and their engagement with the chute, allows the follower to rotate and slide relative to the unlocking lever, achieving telescopic movement of the unlocking lever along the second direction, making the unlocking operation more flexible and controllable. By controlling the sliding of the rolling member within the chute, the movement distance and speed of the unlocking lever can be precisely controlled, ensuring the accuracy and stability of the unlocking process.

[0040] Preferably, the unlocking assembly further includes a first sensing unit and a second sensing unit, wherein the first sensing unit and the second sensing unit correspond to the lowest point and the highest point of the travel of the unlocking rod in the second direction, respectively, so as to control the active part to stop moving after the unlocking rod reaches the corresponding position. In this solution, the first sensing unit senses the lowest point of the travel of the unlocking rod in the second direction. Once the unlocking rod reaches the lowest point, the first sensing unit will send a signal to control the active part to stop moving, thereby ensuring that the unlocking rod does not exceed the required lowest position during the unlocking process. Similarly, the second sensing unit senses the highest point of the travel of the unlocking rod in the second direction. Once the unlocking rod reaches the highest point, the second sensing unit will send a signal to control the active part to stop moving, thereby ensuring that the unlocking rod does not exceed the required highest position during the unlocking process. By introducing these two sensing units, the unlocking assembly can automatically stop moving after the unlocking rod reaches the predetermined position, thereby avoiding excessive extension or extension of the unlocking rod or exceeding the predetermined position, thereby ensuring the accuracy and reliability of the unlocking process.

[0041] Preferably, the first sensing unit and the second sensing unit are arranged toward the slide and on the path where the slide moves along with the active part, and the detection object of the first sensing unit and the second sensing unit is the rolling element. In this solution, through the arrangement with the slide and the cooperation with the rolling element, the first sensing unit and the second sensing unit can sense the lowest point and the highest point of the travel of the unlocking rod in the second direction. The rolling element is a component of the follower and is a component that is rotatably arranged on a fixed shaft fixed to the unlocking rod. The first sensing unit senses the position of the rolling element. When the rolling element reaches the position corresponding to the slide, the first sensing unit will send a signal to control the active part to stop moving. Similarly, the second sensing unit is also arranged on the slide, and its detection object is also the rolling element. The second sensing unit senses the position of the rolling element. When the rolling element reaches another position corresponding to the slide, the second sensing unit will send a signal to control the active part to stop moving. This design has a simple structure and is more compact overall.

[0042] Preferably, the main body includes a top plate, a sleeve mounted on the top plate, and the unlocking lever is mounted within the sleeve, with one end extending out of the sleeve and capable of telescopic movement relative to the sleeve in a first direction. In this embodiment, by mounting the sleeve and the unlocking lever on the top plate, the unlocking lever can be guided by the sleeve to stably telescopically move in the first direction. The sleeve provides stable support for the unlocking lever, preventing it from swaying or deviating during operation. This effectively controls the position and range of motion of the unlocking lever, ensuring the accuracy and reliability of the unlocking action.

[0043] Preferably, the main body further includes side panels, which are connected to the top panel and arranged opposite to the active part; the guide rails and the guide blocks are at least two groups, wherein the two guide rails are respectively fixed to the side panels and arranged in parallel on both sides of the unlocking rod; the two guide blocks are arranged corresponding to the two guide rails and are respectively connected to the connecting plate. In this solution, by connecting the side panels and the top panel, and being arranged opposite to the active part, the main body increases the overall structural stability and ensures the independent movement space of the active part, which can prevent interference between the active part and the side panels, ensure that the active part can move freely along the first direction, and coordinate with the follower and the unlocking rod to achieve accurate control and unlocking operation of the unlocking rod; by at least two groups of parallel guide rails and guide blocks, better support and guidance can be provided for the unlocking rod, so that the unlocking rod can maintain a stable motion trajectory during the unlocking process, the unlocking operation is more balanced and controllable, the risk of accidental unlocking or unlocking failure during the unlocking process is reduced, and the safety and reliability of unlocking are improved.

[0044] Preferably, the unlocking lever includes a fixed portion and a telescopic portion, the fixed portion being mounted on the main body, and the telescopic portion being extendable relative to the fixed portion for unlocking. In this solution, the telescopic portion acts as a buffer when it expands and contracts relative to the fixed portion. When the unlocking lever is subjected to significant force or excessive movement, the telescopic portion absorbs and disperses some of the force and impact, preventing excessive force from being transmitted to the main body and locking mechanism. This reduces the risk of structural damage, protects the entire unlocking assembly and associated mechanical structure, and extends its service life and reliability.

[0045] The present invention discloses a battery swapping device, which includes the above-mentioned unlocking component, and the battery swapping device is used to unlock the locking mechanism on the battery swapping vehicle to release the locking mechanism from locking the battery pack on the battery swapping vehicle. In this solution, the battery swapping device unlocks the locking mechanism on the battery swapping vehicle by integrating the unlocking component. When the battery pack needs to be replaced, the operator can operate the corresponding control mechanism in the battery swapping device to control the unlocking rod to move in the second direction so that it cooperates with the locking mechanism to release the locking mechanism from locking the battery pack, so as to remove the battery pack and install a new battery pack, thereby improving the efficiency and safety of battery swapping.

[0046] Preferably, an unlocking assembly includes an unlocking rod for unlocking a locking mechanism that locks a battery pack, and the unlocking assembly further includes: a connecting portion and a driving portion, one end of the connecting portion is rotatably connected to the unlocking rod by at least one side of the unlocking rod, and the other end of the connecting portion is rotatably connected to the driving portion by at least one side of the driving portion, and the driving portion moves in a first direction to drive the connecting portion to rotate relative to the driving portion, so that the unlocking rod moves a preset distance in a second direction perpendicular to the first direction to cooperate with the locking mechanism and unlock. In this solution, the unlocking assembly is composed only of the unlocking rod and the driving portion that are rotatably connected at both ends of the connecting portion, so that the structure is relatively simple, the volume and space occupied by the unlocking assembly are reduced, and the assembly is convenient, making it easier to integrate into the battery exchange equipment and easy to implement. At the same time, the unlocking component drives the unlocking rod to move in a second direction perpendicular to the first direction by driving the rotation of the connecting part along the first direction, thereby reducing the limitation of driving the unlocking rod in the second direction to unlock, and the unlocking action of the unlocking component no longer depends on the driving force in the second direction, which enables the unlocking component to more flexibly adapt to locking mechanisms of different types and directions during the unlocking process, making the unlocking process more flexible and universal. This increase in flexibility will make the unlocking component more applicable when facing a variety of different locking mechanisms and unlocking methods, and also help to simplify the unlocking operation, reduce the complexity and maintenance cost of the unlocking component, and thus improve the reliability and availability of the overall system.

[0047] Preferably, the end of the connecting portion connected to the unlocking lever is configured to be movable only in the second direction. In this embodiment, the end of the connecting portion connected to the unlocking lever is configured to be movable only in the second direction, so that the unlocking lever can only move in the second direction perpendicular to the first direction during the unlocking process, avoiding unnecessary movement in other directions, thereby further ensuring the stability and accuracy of the unlocking action, making the unlocking assembly easier to control, and improving the reliability of the unlocking process.

[0048] Preferably, the unlocking assembly further includes a first shell and a second shell, both of which are hollow. Along the second direction, the second shell is located above the first shell and are interconnected. The driving part is at least partially located in the first shell, and the unlocking rod is at least partially located in the second shell. The connecting part connects the end of the driving part located in the first shell and the end of the unlocking rod located in the second shell, respectively. In this solution, the first shell can accommodate the driving part to protect it from interference from the external environment, while the second shell accommodates the unlocking rod to provide protection and a stable working environment. Through the arrangement of the first shell and the second shell, the driving part and the unlocking rod are isolated and protected accordingly. Since the driving part and the unlocking rod are respectively located in different shells, such a design can optimize space utilization, avoid interference and collision between components, and help ensure that the unlocking assembly does not conflict or interfere during operation. In addition, if the driving part or the unlocking rod needs to be maintained, the corresponding shell can be opened separately without affecting other components. The separate shell design allows the driving part and the unlocking rod to be maintained and replaced separately.

[0049] Preferably, the two sides of the driving portion are connected to the connecting portion via a first rotating shaft, and the two sides of the unlocking lever are connected to the connecting portion via a second rotating shaft; first limiting grooves extending along the first direction are provided on two opposite side walls of the first housing facing the first rotating shaft, and a first rolling element cooperating with the first limiting groove is provided on the first rotating shaft to guide the driving portion to move in the first direction; and / or second limiting grooves extending along the second direction are provided on two opposite side walls of the second housing facing the second rotating shaft, and a second rolling element cooperating with the second limiting groove is provided on the second rotating shaft to guide the unlocking lever to move in the second direction. In this solution, the driving portion is connected to the connecting portion via the first rotating shaft, and the unlocking lever is connected to the connecting portion via the second rotating shaft, so that the driving portion can move in the first direction and the movement of the unlocking lever is driven by the connecting rod action of the connecting portion, that is, the movement of the driving portion drives the rotation of the connecting portion, and the connecting portion acts as a connecting rod, converting the movement of the driving portion into the movement of the unlocking lever, so that the unlocking lever can move in a direction perpendicular to the first direction to unlock, thereby enhancing the flexibility and versatility of the unlocking process. At the same time, the first limiting groove and the second limiting groove cooperate with the corresponding rolling element to provide guiding and limiting functions for the driving part and the unlocking rod in the first direction and the second direction, which helps to ensure that the driving part and the unlocking rod move according to the predetermined trajectory and range during the movement, thereby enhancing the controllability and accuracy of the unlocking process. Through guidance and limiting, the driving part and the unlocking rod are properly constrained and guided during the movement, thereby improving the stability and reliability of the unlocking component and reducing misoperation and damage caused by unstable movement; in addition, during assembly, the rotating shaft and the rolling element can be more easily assembled into the corresponding limiting groove, thereby realizing quick assembly. The design of the rolling element and the limiting groove makes the assembly and maintenance of the unlocking component more convenient.

[0050] Preferably, the unlocking component further includes a first sensing unit and a second sensing unit spaced apart along the second direction, the first sensing unit and the second sensing unit respectively corresponding to the lowest point and the highest point of the travel of the unlocking rod in the second direction, so as to control the driving part to stop moving after the unlocking rod reaches the corresponding position; and / or, the unlocking component further includes a third sensing unit and a fourth sensing unit spaced apart along the first direction, the third sensing unit and the fourth sensing unit respectively corresponding to the original point and the arrival point of the travel of the driving part in the first direction, so as to control the driving part to stop moving after the driving part extends to the designated distance. In this solution, the unlocking assembly can accurately sense the position of the unlocking rod in the second direction through the first and second sensing units. When the unlocking rod reaches the predetermined lowest or highest point, the sensing unit will send a signal to control the drive unit to stop moving. The position sensing unit ensures that the unlocking rod stops at the correct position, thereby ensuring the reliability of the unlocking process. If the unlocking rod does not reach the predetermined position, the drive unit will not stop moving, which helps to avoid problems caused by incomplete unlocking, thereby accurately controlling the unlocking process. In addition, due to the presence of the sensing unit, the drive unit can achieve precise stopping during the unlocking process, avoiding excessive movement and excessive unlocking, thereby helping to protect the battery pack and locking mechanism and preventing accidental damage or safety issues caused by excessive unlocking. In addition, by monitoring the position of the drive unit in the first direction through the third and fourth sensing units, precise control of the drive unit can be achieved, ensuring that the drive unit stops at the correct position, helping to optimize the unlocking process and improve the efficiency and reliability of the unlocking assembly.

[0051] Preferably, the first sensing unit and the second sensing unit are arranged corresponding to the second limiting groove, and the detection object of the first sensing unit and the second sensing unit is the second rolling element; and / or the third sensing unit and the fourth sensing unit are arranged corresponding to the first limiting groove, and the detection object of the third sensing unit and the fourth sensing unit is the first rolling element. In this solution, the position of the unlocking lever is indirectly detected by the first rolling element and the second rolling element. Compared with directly measuring the position of the unlocking lever, this helps to avoid interference between the sensing unit and other structures, making the structure of the unlocking assembly simpler, more compact and more reasonable.

[0052] Preferably, a sleeve is mounted on the top of the second housing, and the unlocking lever is mounted within the sleeve, with one end extending out of the sleeve and being telescopically movable relative to the sleeve in the second direction. In this embodiment, the sleeve mounted on the top of the second housing protects and positions the unlocking lever, constraining and controlling its movement within the sleeve, thereby improving the accuracy and stability of the unlocking process. The sleeve also makes the movement and installation of the unlocking lever more compact. Mounted within the sleeve, the unlocking lever does not occupy excessive space, thereby optimizing the overall structural design of the unlocking assembly.

[0053] Preferably, the unlocking assembly further includes a limiting portion, which is disposed opposite the driving portion and located on a side of the unlocking lever facing away from the driving portion, and is capable of limiting the movement of the driving portion in the first direction. In this embodiment, the presence of the limiting portion constrains and restricts the driving portion during the unlocking process, thereby preventing excessive movement of the driving portion in the first direction, ensuring that the range of movement of the unlocking lever is within a reasonable range, and preventing the driving portion from colliding with or interfering with other components during the unlocking process, thereby reducing potential damage risks and preventing accidental damage or safety issues caused by excessive extension or retraction of the unlocking lever.

[0054] Preferably, the unlocking rod includes a fixed part and a telescopic part, the fixed part is connected to the connecting part, and the telescopic part can be telescoped relative to the fixed part and used for unlocking. In this solution, when the unlocking rod is subjected to a large external force or resistance during the unlocking process, the design of the telescopic part allows it to telescope relative to the fixed part, that is, the unlocking rod is allowed to have a certain degree of "elasticity" during the movement, thereby slowing down the movement speed and reducing the impact force of the movement. It can avoid the unlocking rod from colliding with the locking mechanism due to excessive movement, thereby reducing the potential risk of damage. Through this telescopic design, the unlocking component can better adapt to various movement conditions during the unlocking process, provide a certain degree of "buffering" effect, and increase the safety and stability of the unlocking process. In addition, the design of the telescopic part also helps to improve the durability of the unlocking component. It can absorb a certain degree of impact and vibration, reduce the impact load on the unlocking component, and thus extend its service life.

[0055] Preferably, the fixed part includes a receiving cavity, and the telescopic part and the fixed part are nested through the receiving cavity. The unlocking rod also includes an elastic element located between the telescopic part and the fixed part, and the elastic element is used to apply a force along the extending direction to the telescopic part. In this solution, the presence of the elastic element enables the telescopic part to produce elastic deformation when subjected to external force, and can buffer the impact and vibration generated during the unlocking process, thereby reducing the impact force during movement and protecting the unlocking component and other structures. Since the telescopic part is subjected to the force of the elastic element, it can be extended and retracted accordingly according to changes in external conditions, so that the unlocking component can adaptively perform unlocking operations under different conditions, thereby improving the reliability and stability of unlocking. In addition, the design of the receiving cavity enables the telescopic part to be nested in the fixed part, thereby making the structure of the entire unlocking rod compact and occupying less space.

[0056] Preferably, the fixed part includes a first end and a second end relative to each other, the telescopic part includes an unlocking end extending from the first end and a connecting rod located in the accommodating cavity, the elastic element is sleeved on the connecting rod and is compressed between the unlocking end and the second end, the second end has an opening communicating with the accommodating cavity, the unlocking rod also includes an adjusting part, the adjusting part is located at the opening and connected to the telescopic part, the adjusting part is used to limit the telescopic part on the fixed part, and can adjust the length of the telescopic part extending relative to the fixed part. In this solution, the elastic element is sleeved on the connecting rod and compressed between the unlocking end and the second end, so that the elastic force can be better transmitted, and hard limitation between the unlocking rod and the locking mechanism can be effectively prevented. The adjustment part is arranged at the opening and connected to the telescopic part, so that the telescopic part is limited on the fixed part, which ensures that the telescopic part will not separate from the fixed part during the unlocking process and can maintain a stable connection state; in addition, by adjusting the extension length of the telescopic part through the adjustment part, the length of the unlocking rod can be adjusted according to specific needs to adapt to the characteristics of different locking mechanisms and different unlocking requirements, thereby improving the flexibility and reliability of the unlocking process of electric vehicles and other battery-powered equipment.

[0057] The present invention discloses a battery swapping device comprising the aforementioned unlocking assembly. In this solution, by using the aforementioned unlocking assembly, the volume and space occupied by the unlocking assembly are reduced, making the integrated battery swapping device structure more compact. At the same time, since the unlocking operation is simpler and more flexible, the battery swapping efficiency of the battery swapping device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] FIG1 is a schematic structural diagram of an unlocking device according to embodiment 1 of the present invention (I);

[0059] FIG2 is a schematic structural diagram of the unlocking device according to Example 1 of the present invention (II);

[0060] FIG3 is a schematic diagram of a portion of the structure of the unlocking device according to Example 1 of the present invention (I);

[0061] FIG4 is a schematic diagram of a portion of the structure of the unlocking device according to Example 1 of the present invention (II);

[0062] FIG5 is a schematic diagram of a portion of the structure of the unlocking device according to Example 1 of the present invention (Part 3);

[0063] FIG6 is a schematic diagram of a portion of the structure of the unlocking device according to Example 1 of the present invention (IV);

[0064] FIG7 is a schematic diagram of a portion of the structure of the unlocking device according to Example 1 of the present invention (V);

[0065] FIG8 is a cross-sectional schematic diagram of the unlocking mechanism of Example 1 of the present invention;

[0066] FIG9 is a schematic diagram of a battery-swapping vehicle according to Example 1 of the present invention;

[0067] Figure 10 is a schematic structural diagram of the unlocking device of Example 2 of the present invention.

[0068] Explanation of the accompanying drawings: In Example 1 and Example 2, the battery-exchanging trolley 1000; the unlocking device 100; the moving mechanism 1; the end plate 11; the moving part 12; the connecting rod 15; the unlocking mechanism 2; the main body 21; the rod body 22; the sliding cavity 23; the shell 3; the accommodating cavity 31; the guide surface 32; the guide part 33; the accommodating groove 34; the side wall 35; the sliding sleeve 4; the driving mechanism 5; the conversion mechanism 6; the connecting part 61; the conversion part 62; the limiting part 63; the limiting groove 631; the pivot shaft 632; the limiting surface 633; ​​the groove 634; the guide block 7.

[0069] Example 3:

[0070] FIG11 is a schematic diagram of an unlocking device according to an embodiment of the present invention (I);

[0071] FIG12 is a schematic diagram of an unlocking device according to an embodiment of the present invention (II);

[0072] FIG13 is a schematic diagram of an unlocking device according to an embodiment of the present invention (III);

[0073] FIG14 is a partial schematic diagram of an unlocking device according to an embodiment of the present invention (I);

[0074] FIG15 is a partial schematic diagram of the unlocking device according to an embodiment of the present invention (II);

[0075] FIG16 is a cross-sectional schematic diagram of an unlocking mechanism according to an embodiment of the present invention;

[0076] Figure 17 is a schematic diagram of a battery-swapping vehicle according to an embodiment of the present invention.

[0077] Explanation of the figure marks: In Example 3, the battery-exchanging cart 1000; the unlocking device 100; the moving mechanism 1; the conversion mechanism 2; the first conversion member 21; the first end 211; the second end 212; the second conversion member 22; the third end 221; the fourth end 222; the first connecting shaft 23; the second connecting shaft 24; the third connecting shaft 25; the unlocking mechanism 3; the unlocking member 31; the main body 311; the sliding cavity 3111; the mounting port 34; the rod body 312; the mounting member 32; the shell 4; the top plate 41; the side plate 42; the first slide groove 421; the second slide groove 422; the third slide groove 423; the sliding sleeve 43; the connecting hole 431; the vertical plate 44; the opening 441; the through hole 442; the bottom plate 45; the driving mechanism 5; the push rod 51; the first rolling member 6; the second rolling member 7.

[0078] Example 4

[0079] FIG18 is a schematic structural diagram of a battery replacement device according to a preferred embodiment of the present invention.

[0080] FIG. 19 is a schematic structural diagram of an unlocking assembly according to a preferred embodiment of the present invention.

[0081] FIG20 is a schematic structural diagram of an unlocking assembly without the sensing unit according to a preferred embodiment of the present invention.

[0082] FIG. 21 is a rear view of the unlocking assembly according to a preferred embodiment of the present invention.

[0083] FIG22 is a schematic structural diagram (I) of the unlocking assembly of a preferred embodiment of the present invention without the active part, the driving part, etc.

[0084] FIG23 is a structural schematic diagram (II) of the unlocking assembly of a preferred embodiment of the present invention without the active part, the driving part, etc.

[0085] FIG. 24 is a cross-sectional view of an unlocking assembly according to a preferred embodiment of the present invention.

[0086] Figure 25 is a schematic structural diagram of the unlocking lever of a preferred embodiment of the present invention.

[0087] Figure 26 is a cross-sectional view of the unlocking rod of a preferred embodiment of the present invention.

[0088] Explanation of the figure marks: In Example 4, the battery exchange device 100; the unlocking component 10; the main body 1; the unlocking rod 11; the fixed part 111; the telescopic part 112; the accommodating chamber 113; the top plate 12; the top guide groove 121; the bushing 13; the side plate 14; the bottom plate 15; the bottom guide groove 151; the fixed plate 16; the follower 2; the fixed shaft 21; the rolling member 22; the active part 3; the mating part 31; the guide rail 41; the guide block 42; the connecting plate 43; the first sensing unit 44; the second sensing unit 45; the mounting plate 46; the driving part 5; the second direction L1; the first direction L2.

[0089] Example 5:

[0090] Figure 27 is a schematic structural diagram of the battery replacement equipment of a preferred embodiment of the present invention.

[0091] FIG28 is a schematic structural diagram of an unlocking assembly according to a preferred embodiment of the present invention (I).

[0092] FIG. 29 is a schematic structural diagram (II) of an unlocking assembly according to a preferred embodiment of the present invention.

[0093] FIG30 is a cross-sectional view (I) of the unlocking assembly of a preferred embodiment of the present invention.

[0094] FIG31 is a cross-sectional view (II) of the unlocking assembly of a preferred embodiment of the present invention.

[0095] Figure 32 is a schematic diagram of the internal structure of the unlocking assembly with the unlocking lever in the middle position according to a preferred embodiment of the present invention.

[0096] Figure 33 is a schematic diagram of the internal structure of the unlocking assembly of the unlocking rod at the highest point of a preferred embodiment of the present invention.

[0097] FIG34 is a schematic structural diagram of an unlocking assembly according to a preferred embodiment of the present invention.

[0098] Figure 35 is a schematic structural diagram of the unlocking lever of a preferred embodiment of the present invention.

[0099] Figure 36 is a cross-sectional view of the unlocking rod of a preferred embodiment of the present invention.

[0100] Explanation of the figure marks: In Example 5, the battery exchange device 100; the unlocking assembly 10; the unlocking rod 1; the fixing part 11; the accommodating cavity 111; the first end 112; the second end 113; the telescopic part 12; the unlocking end 121; the connecting rod 122; the elastic element 13; the adjusting part 14; the gasket 15; the connecting part 2; the first rotating shaft 21; the first rolling member 211; the second rotating shaft 22; the second rolling member 221; the driving part 3; the first shell 41; the first limiting groove 411; the second shell 42; the second limiting groove 421; the bushing 422; the first sensing unit 43; the second sensing unit 44; the limiting part 45; the mounting plate 46; the third sensing unit 47; the fourth sensing unit 48; the first direction L1; the second direction L2. DETAILED DESCRIPTION

[0101] A preferred embodiment is given below and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0102] Example 1

[0103] As shown in Figures 1 to 8, this embodiment provides an unlocking device 100 for unlocking a locking mechanism of a locked battery pack. The unlocking device 100 includes a moving mechanism 1, a conversion mechanism 6, and an unlocking mechanism 2. The conversion mechanism 6 is rotatably connected at both ends between the moving mechanism 1 and the unlocking mechanism 2. The moving mechanism 1 can reciprocate in a first direction and drive the conversion mechanism 6 to rotate relative to the moving mechanism 1 by a preset angle, causing the unlocking mechanism 2 to move a preset distance in a second direction perpendicular to the first direction, thereby enabling the unlocking mechanism 2 to cooperate with the locking mechanism and unlock the battery pack. Specifically, the moving mechanism 1 moves in the first direction and drives the conversion mechanism 6 to rotate by a preset angle. During the rotation of the conversion mechanism 6, the unlocking mechanism 2 is moved in the second direction by a preset distance, thereby enabling the unlocking mechanism 2 to cooperate with the locking mechanism to unlock the battery pack. After unlocking is completed, the moving mechanism 1 moves in a direction opposite to the first direction to its initial position. During the process of returning to its initial position, the moving mechanism 1 can drive the conversion mechanism 6 to rotate by a preset angle and then return to its initial position, thereby driving the unlocking mechanism 2 to return from the unlocked position to its initial position in a direction opposite to the second direction, thereby completing the unlocking of the battery pack. In other words, this embodiment converts the movement of the moving mechanism 1 in the first direction into the movement of the unlocking mechanism 2 in the second direction through the conversion mechanism 6, so that the unlocking mechanism 2 can cooperate with the unlocking mechanism 2 after moving a preset distance in the second direction, thereby realizing the unlocking of the battery pack.

[0104] During specific use, the movement of the moving mechanism 1 in the first direction is converted into the movement of the unlocking mechanism 2 in the second direction through the conversion mechanism 6, so that the unlocking mechanism 2 can cooperate with the unlocking mechanism 2 after moving a preset distance in the second direction, thereby realizing the unlocking of the battery pack; through the cooperation between the moving mechanism 1 and the conversion mechanism 6, the lifting and lowering of the unlocking mechanism 2 in the second direction is realized, which reduces the complexity of the structure of the unlocking device 100, makes the overall structure of the unlocking device 100 simple, thereby improving the compactness of the unlocking device 100, and then the structure of the unlocking device 100 is miniaturized, so that the battery exchange vehicle 1000 can also be more compact; secondly, due to the adoption of the above-mentioned structural form, the height of the unlocking device 100 in the second direction can be reduced, further improving the compactness of the structure of the unlocking device 100; finally, due to the low complexity of the unlocking device 100, the assembly time of the unlocking device 100 is also reduced, thereby improving the efficiency of assembly and maintenance of the unlocking device 100.

[0105] In this embodiment, as shown in FIG4 and FIG6 , the first direction is the positive direction of the X direction, and the second direction is the positive direction of the Y direction. In other embodiments, the settings of the first direction and the second direction can be adjusted according to actual needs and are not limited here.

[0106] The end of the conversion mechanism 6 connected to the unlocking mechanism 2 is restricted to movement only in the second direction. The conversion mechanism 6 is pivotally connected to the moving mechanism 1, and the conversion mechanism 6 and the moving mechanism 1 are arranged at an angle. Specifically, the angled arrangement of the conversion mechanism 6 and the moving mechanism 1 allows the conversion mechanism 6 to move in at least the second direction, thereby enabling the unlocking mechanism 2 to move in the second direction. Furthermore, the end of the conversion mechanism 6 connected to the unlocking mechanism 2 is configured to be movable in the second direction, allowing the conversion mechanism 6 to drive the unlocking mechanism 2 to move only in the second direction. This improves the accuracy of the unlocking mechanism 2's coordinated unlocking with the locking mechanism, thereby enhancing the efficiency of unlocking.

[0107] Please refer to Figures 3 to 6 for an understanding. In actual use, the mobile mechanism 1 has a connecting portion at one end, and the conversion mechanism 6 is connected to the connecting portion. The mobile mechanism 1 is arranged at an acute angle thereto. That is, when projected in the second direction, the conversion mechanism 6 and the areas of the mobile mechanism 1 other than the connecting portion at least partially overlap. This reduces the length of the unlocking device 100 in the first direction and improves the compactness of the unlocking device 100. As shown in Figures 4 and 5, in this embodiment, the first direction is the positive X direction, and the second direction is the positive Y direction. In this case, the conversion mechanism 6 extends from the connecting portion upward toward the mobile mechanism 1. In other embodiments, the conversion mechanism 6 and the mobile mechanism 1 may be arranged at an obtuse angle, and no specific limitation is imposed herein. Furthermore, in this embodiment, when projected in the second direction, the length of the mobile mechanism 1 is greater than the length of the conversion mechanism 6. In other embodiments, the lengths of the mobile mechanism 1 and the conversion mechanism 6 can be adjusted according to actual needs and are not limited herein.

[0108] Refer to Figures 3 to 6 for an understanding of the conversion mechanism 6. The conversion member 62 comprises a connecting member 61 and a conversion member 62. The ends of the conversion member 62 are pivotally connected to the moving mechanism 1 and the connecting member 61, respectively. The connecting member 61 is used to mount the unlocking mechanism 2. The conversion member 62 is arranged at an angle to the moving mechanism 1. The conversion member 62 and the connecting member 61 are pivotally connected via a pivot axis 632, and the projection of the unlocking mechanism 2 in the second direction at least partially overlaps with the projection of the pivot axis 632. This structural form facilitates the installation and fixation of the unlocking mechanism 2 by providing the connecting member 61, while also improving the stability of the unlocking mechanism 2 during movement with the conversion mechanism 6. By arranging the conversion member 62 at an angle to the moving mechanism 1 and cooperating with the moving mechanism 1 and the connecting member 61, the movement of the moving mechanism 1 in the first direction is converted into the movement of the unlocking mechanism 2 in the second direction, thereby improving the accuracy of the unlocking mechanism 2 and the locking mechanism in unlocking, and enhancing the efficiency of unlocking. In other words, this simple structure can achieve conversion in the direction of movement, simplifying the overall structure of the unlocking device 100 and enhancing the stability and reliability of the unlocking device 100 during operation. Specifically, in the projection in the second direction, the conversion member 62 and the mobile mechanism 1 other than the connection part at least partially overlap, thereby reducing the length of the unlocking device 100 in the first direction and improving the compactness of the unlocking device 100. As shown in Figures 4 and 6, in this embodiment, the first direction is the positive direction of the X direction, and the second direction is the positive direction of the Y direction. At this time, the conversion member 62 extends from the connection part to the top of the mobile mechanism 1. In other embodiments, the rotating mechanism and the mobile mechanism 1 can be arranged at an obtuse angle. In addition, in the projection in the second direction, the length of the mobile mechanism 1 is greater than the sum of the lengths of the conversion member 62 and the connecting member 61. In other embodiments, the relationship between the length of the mobile mechanism 1 and the lengths of the conversion member 62 and the connecting member 61 in the projection in the second direction can be adjusted according to actual needs and is not limited here.

[0109] Please refer to Figures 1 and 10 for understanding. The unlocking device 100 also includes a shell 3 and a guide block 7. The shell 3 is provided with a housing 31. The mobile mechanism 1 and the conversion mechanism 6 are provided in the housing 31. The guide block 7 is provided in the housing 31 and at least a portion of the housing 31 serves as a slide groove for the guide block 7, so that the guide block 7 moves in the slide groove to drive the mobile mechanism 1 connected to the guide block 7 to move along the first direction. With the above-mentioned structural form, the shell 3 is used to accommodate the mobile mechanism 1, the conversion mechanism 6 and the guide block 7, so that the unlocking device 100 can be assembled into an integral module, which is convenient for subsequent installation in the form of a module on the battery-exchange vehicle 1000. At the same time, the shell 3 can also protect the mobile mechanism 1, the conversion mechanism 6 and the guide block 7. In addition, the setting of the slide groove can provide guidance for the movement of the guide block 7, so that the guide block 7 can drive the mobile mechanism 1 to move along the first direction, thereby improving the stability of the movement of the guide block 7 and the mobile mechanism 1.

[0110] In this embodiment, the chute extends in the first direction, increasing the travel of the chute in guiding the guide block 7. As shown in Figures 1 to 3, guide surfaces 32 are provided on at least two sidewalls 35 of the accommodating chamber 31 on either side of the first direction to form the chute, which cooperates with the guide block 7. The coefficient of friction of the guide surfaces 32 is lower than that of the other walls of the accommodating chamber 31. This structural form reduces the friction of the guide block 7 and increases its speed. It also reduces the wear of the guide block 7 and increases its service life.

[0111] In this embodiment, the two side walls 35 of the accommodating chamber 31 located on either side in the first direction, as well as the bottom surface of the accommodating chamber 31 facing the movable mechanism 1, are provided with guide surfaces 32 forming sliding grooves, thereby further improving the stability and reliability of the movement of the guide block 7. Specifically, to reduce operating costs, the material of the guide surfaces 32 is preferably polytetrafluoroethylene. In other embodiments, the material of the guide surfaces 32 can also be adjusted according to actual needs, as long as the friction coefficient of the material of the guide surfaces 32 is lower than the friction coefficient of the other wall surfaces.

[0112] As shown in FIG7 , the side wall 35 forming the slide groove is provided with a receiving groove 34, in which a guide member 33 is provided, and a guide surface 32 is provided on the surface of the guide member 33 facing the guide block 7. With the above-mentioned structural form, the guide block 7 can be guided by the surface of the guide member 33 facing the guide block 7, so that the guide block 7 can drive the moving mechanism 1 to move along the first direction, thereby improving the stability of the movement of the guide block 7 and the moving mechanism 1; the guide member 33 is provided in the receiving groove 34, so that the material requirements of the other parts of the housing 3 are lower, which can reduce the manufacturing cost. At the same time, when the guide member 33 is worn and needs to be replaced, only the guide member 33 can be replaced, without involving other parts of the housing 3, thereby reducing the cost of subsequent maintenance and repair. In this embodiment, the thickness of the guide member 33 is greater than the depth of the receiving groove 34. In other embodiments, the thickness of the guide member can also be less than or equal to the depth of the receiving groove 34, which is not limited here. In actual use, the two side walls 35 of the accommodating chamber 31 on both sides of the first direction and the bottom of the accommodating chamber 31 on the side facing the guide block 7 are each provided with an accommodating groove 34, and a guide member 33 is provided in each accommodating groove 34, thereby further improving the stability and reliability of the movement of the guide block 7. To facilitate the processing of the guide member 33, the guide member 33 is preferably entirely made of polytetrafluoroethylene.

[0113] As shown in Figures 4 to 6, the conversion mechanism 6 also includes a stopper 63. The stopper 63 includes a stopper surface 633. The stopper surface 633 is provided on the guide block 7 and covers at least the projection area of ​​the connector 61 onto the guide block 7 along the second direction. The stopper surface 633 is configured to abut the surface of the connector 61 that is away from the locking mechanism. Specifically, when the battery pack is not unlocked, the surface of the connector 61 that is away from the unlocking mechanism 2 abuts the stopper surface 633. When the battery pack is unlocked, the surface of the connector 61 that is away from the unlocking mechanism 2 disengages from the stopper surface 633 and moves toward the locking mechanism, thereby enabling the unlocking mechanism 2 connected to the connector 61 to cooperate with the locking mechanism to unlock the battery pack. After the battery pack is unlocked, the connector 61 moves away from the locking mechanism, causing the surface of the connector 61 that is away from the unlocking mechanism 2 to abut the stopper surface 633, thereby limiting the movement of the connector 61. By adopting the above-mentioned structural form, the limiting surface 633 can limit the movement of the connecting member 61 in the direction away from the unlocking mechanism 2, preventing the connecting member 61 from moving too far away from the unlocking mechanism 2, thereby reducing the travel of the unlocking mechanism 2 and the unlocking mechanism 2 to achieve cooperation, improving the efficiency of the cooperation between the unlocking mechanism 2 and the locking mechanism, and thus improving the unlocking efficiency of the battery pack.

[0114] In this embodiment, the conversion member 62 extends from the connecting portion toward the top of the movable mechanism 1, such that the limiting surface 633 is located on the upper surface of the guide block 7. As shown in Figure 4, the guide block 7 has a groove 634 defined on the end closest to the connecting member 61, with the limiting surface 633 located at the bottom of the groove 634. This structure prevents the connecting member 61 from traveling too far away from the locking mechanism, improving the efficiency of the unlocking mechanism 2 and the locking mechanism, thereby enhancing the efficiency of unlocking the battery pack. Furthermore, the groove 634 on the guide block 7 reduces the weight of the unlocking device 100.

[0115] As shown in Figures 1 to 3, housing 3 is further provided with a sliding sleeve 4, which is positioned on the surface of housing 3 near unlocking mechanism 2. Sliding sleeve 4 defines a connecting hole, the axis of which coincides with the axis of unlocking mechanism 2. The connecting hole is configured for sliding connection with unlocking mechanism 2. This structure allows sliding sleeve 4 to guide unlocking device 100, improving the stability of unlocking mechanism 2. Furthermore, sliding sleeve 4 reduces friction within unlocking mechanism 2, minimizing wear and tear, and increasing the service life of unlocking mechanism 2.

[0116] As shown in Figure 4, the movable mechanism 1 includes an end plate 11 and a connecting rod 15. The ends of the connecting rod 15 are respectively connected to the end plate 11 and the conversion mechanism 6. A guide block 7 is provided on the connecting rod 15 and located between the end plate 11 and the conversion mechanism 6. The end plate 11 can drive the connecting rod 15 to move in a first direction. With the above-described structure, the ends of the connecting rod 15 are respectively connected to the end plate 11 and the conversion mechanism 6. Guided by the guide block 7, the end plate 11 can drive the connecting rod 15 to move in the first direction, thereby enabling the conversion mechanism 6 to drive the unlocking mechanism 2 to move in a second direction. As a result, the movable mechanism 1 has a simple structure and is easy to implement. At the same time, it can stably and reliably drive the conversion mechanism 6 and thus the unlocking mechanism 2 to move in the second direction. Specifically, the end plate 11 is located outside the accommodating cavity 31, so that the end plate 11 does not contact the accommodating cavity 31, thereby preventing interference between the accommodating cavity 31 and the movement of the end plate 11, thereby improving the stability and reliability of the movement of the end plate 11. In the present embodiment, the mobile mechanism 1 further comprises a mobile member 12, one end of which is connected to a connecting rod 15 and the other end is connected to a rotating member 62 of the conversion mechanism 6. The end plate 11, the connecting rod 15, the guide block 7 and the mobile member 12 are arranged separately, thereby facilitating the processing of the end plate 11, the connecting rod 15, the guide block 7 and the mobile member 12, and if a problem occurs in one of the structures in the upper structure, only the damaged structure needs to be replaced for normal use, thereby reducing the cost of use. A receiving groove is provided on the mobile member 12, and the rotating member extends into the receiving groove and is rotationally connected to the mobile member 12 via a rotating shaft, so that the rotating member can rotate in the receiving groove. During specific use, the connecting rod 15 runs through the guide block 7, and the two ends of the connecting rod 15 are respectively connected to the end plate 11 and the mobile member 12 away from the end of the conversion mechanism 6. In addition to the separate arrangement, the end plate 11, the connecting rod 15 and the guide block 7 can also have the following embodiment, as shown in Figure 5, the connecting rod 15 is integrally formed with the guide block 7 and the mobile member 12, thereby improving the structural strength of the unlocking device 100. At this time, the surface of the guide block 7 close to the conversion mechanism 6 is the limiting surface 633 .

[0117] As shown in Figures 1 to 3, the unlocking device 100 also includes a driving mechanism 5, which is attached to the outer wall of the shell 3. The driving mechanism 5 is connected to the end plate 11 of the mobile mechanism 1 and moves in the same direction as the mobile mechanism 1. With the above-mentioned structural form, the driving mechanism provides power to the end plate or the mobile mechanism, thereby realizing the automatic control of the unlocking device; at the same time, the driving mechanism 5 is in close contact with the shell 3, so that the structure of the unlocking mechanism 2 is compact and the space utilization rate is high. Specifically, the driving mechanism 5 includes a push rod, and the moving direction of the push rod is the same as that of the mobile mechanism 1. One end of the push rod is connected to the end plate 11, so that by driving the end plate 11, the connecting rod 15, the guide block 7 and the mobile member 12 are driven to move in turn, and then the unlocking mechanism 2 can be driven to move by driving the conversion member 62 and the connecting member 61.

[0118] As shown in Figure 8, the unlocking mechanism 2 includes a body 21 and a rod 22. The body 21 defines a sliding cavity 23 with an opening. One end of the rod 22 extends from the opening into the sliding cavity 23 and is retractable relative to the body 21 in a second direction. The end of the body 21, distal to the rod 22, is connected to the conversion mechanism 6. This structure, by making the rod 22 retractable relative to the body 21, acts as a buffer when the unlocking mechanism 2 and the locking mechanism come into contact. When the unlocking mechanism 2 moves excessively, the rod 22 absorbs and disperses some of the force and impact, preventing excessive force from being transmitted to the body 21 and the locking mechanism. This reduces the risk of structural damage, protects the entire unlocking device 100 and associated mechanical structures, and extends its service life and reliability. In this embodiment, the sliding cavity 23 is filled with nitrogen, so that the nitrogen pressure can be used to achieve the retractable movement. In other words, in this embodiment, the unlocking mechanism 2 generates elastic deformation based on the compression and expansion characteristics of gas. When external pressure or load is applied to the rod 22, the nitrogen will be compressed and generate a corresponding reaction force. When the external pressure or load is reduced, the nitrogen will expand again. The compression of the gas causes the rod 22 to expand and contract relative to the body 21. Of course, in other alternative embodiments, a mechanical spring can be used to connect the rod 22 to the body 21. The compression and release of the spring can cause the rod 22 to expand and contract relative to the body 21. By selecting the appropriate spring type and spring preload, different expansion and contraction lengths and unlocking forces can be achieved. In actual use, the end of the rod 22 that extends into the accommodating chamber 31 is configured to be unable to detach from the accommodating chamber 31.

[0119] As shown in FIG9 , this embodiment also provides a battery-swap cart 1000, which includes the unlocking device 100 described above. Specifically, a conversion mechanism 6 converts the movement of the moving mechanism 1 in a first direction into the movement of the unlocking mechanism 2 in a second direction, so that the unlocking mechanism 2 can cooperate with the unlocking mechanism 2 after moving a preset distance in the second direction, thereby unlocking the battery pack. The cooperation between the moving mechanism 1 and the conversion mechanism 6 enables the unlocking mechanism 2 to be raised and lowered in the second direction, reducing the structural complexity of the unlocking device 100 and simplifying its overall structure. This reduces the size of the unlocking device 100, thereby preventing interference between the unlocking device 100 and other components of the battery-swap cart 1000, improving the stability and reliability of the unlocking device 100, and thereby improving the stability and reliability of the unlocking device 100 in unlocking the battery pack. Due to the low complexity of the unlocking device 100, the assembly time of the unlocking device 100 is reduced, thereby improving the efficiency of assembly and maintenance of the unlocking device 100. Furthermore, the above-described structural form can reduce the height of the unlocking device 100 in the second direction, improving the compactness of the unlocking device 100. In specific implementation, for the limiting member 63, the present invention provides some feasible implementation methods as follows, but the protection scope of the present invention should not be limited to the following implementation methods.

[0120] Example 2

[0121] Referring to FIG10 , the conversion mechanism 6 further includes a limiting member 63, which includes a limiting groove 631 formed on the side wall 35. The limiting groove 631 is slidably connected to the pivot shaft 632, and the limiting groove 631 extends along the second direction. With the above-described structure, the connecting member 61 and the conversion member 62 are rotationally connected via the pivot shaft 632, and the pivot shaft 632 is slidably connected to the limiting groove 631 extending along the second direction, thereby converting the movement of the moving mechanism 1 in the first direction into the movement of the unlocking mechanism 2 in the second direction. Furthermore, the limiting groove 631 extends along the second direction, providing a guide for the movement of the pivot shaft 632, allowing the pivot shaft 632 to move along the extending direction of the limiting groove 631, thereby driving the unlocking mechanism 2 to move only in the second direction. This improves the stability and reliability of the unlocking mechanism 2 in the second direction, thereby improving the accuracy of the unlocking mechanism 2 and the locking mechanism in unlocking, and improving the efficiency of unlocking.

[0122] In actual use, there are two limiting slots 631, and the two limiting slots 631 are connected to the ends of the pivot shaft 632 in a one-to-one correspondence. In other words, the pivot shaft 632 passes through the conversion member 62 and the connecting member 61, and both ends of the pivot shaft 632 protrude from the connection point of the conversion member 62 and the connecting member 61 in a direction closer to the limiting slots 631. The two ends of the pivot shaft 632 are respectively connected to the two limiting slots 631 in a one-to-one sliding connection, thereby increasing the stability and reliability of the guiding of the limiting slots 631.

[0123] Example 3

[0124] As shown in Figures 11 to 16, this embodiment discloses an unlocking device 100 for unlocking a locking mechanism of a locked battery pack. The unlocking device 100 includes a moving mechanism 1, a conversion mechanism 2 and an unlocking mechanism 3. The conversion mechanism 2 includes a first conversion member 21 and a second conversion member 22. The first end 211 of the first conversion member 21 and the third end 221 of the second conversion member 22 are arranged at an angle and are both rotatably connected to the moving mechanism 1. The second end 212 of the first conversion member 21 is connected to the unlocking mechanism 3, and the fourth end 222 of the second conversion member 22 is set as a free end. The moving mechanism 1 can reciprocate along the first direction and drive the first conversion member 21 and the second conversion member 22 to rotate relative to the moving mechanism 1, so that the second end 212 and the fourth end 222 move in opposite directions along a second direction perpendicular to the first direction, and then the unlocking mechanism 3 moves a preset distance along the second direction to cooperate with the locking mechanism and unlock.

[0125] Specifically, the moving mechanism 1 moves along the first direction and drives the first conversion member 21 and the second conversion member 22 to move, thereby changing the angle between the first conversion member 21 and the second conversion member 22, so that the angle between the first conversion member 21 and the second conversion member 22 increases, so that the second end 212 moves a preset distance toward the direction close to the locking mechanism, and then the second end 212 can drive the unlocking mechanism 3 to move a preset distance in the direction close to the unlocking mechanism 3 and then cooperate with the locking mechanism to unlock the battery pack.

[0126] After unlocking, the moving mechanism 1 moves in the direction opposite to the first direction to its initial position. During the process of returning to its initial position, the moving mechanism 1 can drive the first conversion member 21 and the second conversion member 22 to move in the direction opposite to the first direction, thereby changing the angle between the first conversion member 21 and the second conversion member 22, reducing the angle between the first conversion member 21 and the second conversion member 22, and causing the second end 212 to move away from the locking mechanism to its initial position, thereby completing the unlocking of the battery pack. In other words, in this embodiment, the first conversion member 21 and the second conversion member 22 convert the movement of the moving mechanism 1 in the first direction into the movement of the unlocking mechanism 3 in the second direction, so that the unlocking mechanism 3 can cooperate with the locking mechanism after moving a preset distance in the second direction, thereby unlocking the battery pack. During use, the movement of the moving mechanism 1 drives the second end 212 to move in the second direction, converting the movement of the moving mechanism 1 in the first direction into movement of the unlocking mechanism 3 in the second direction. This allows the unlocking mechanism 3 to move a predetermined distance in the second direction and then engage with the unlocking mechanism 3, thereby unlocking the battery pack. The coordinated use of the moving mechanism 1 and the conversion mechanism 2 allows the unlocking mechanism 3 to be raised and lowered in the second direction, reducing the complexity of the unlocking device 100 and miniaturizing the overall structure of the unlocking device 100, thereby making the battery swapping vehicle 100 more compact. Furthermore, with the aforementioned structure, the first conversion member 21 and the second conversion member 22 form a scissor-like structure, so that during movement of the first end 211 and the third end 221 in the first direction, the second end 212 and the fourth end 222 move in opposite directions. This allows the unlocking mechanism 3 connected to the second end 212 to be raised and lowered in the second direction. The movement of the fourth end 222 further improves the stability and reliability of the movement of the second end 212, thereby ensuring the stability and reliability of the movement of the unlocking mechanism 3 connected to the second end 212 and improving the stability and reliability of the battery pack unlocking. Finally, since the unlocking device 100 is less complex, the assembly time of the unlocking device 100 is reduced, thereby improving the efficiency of assembly and maintenance of the unlocking device 100.

[0127] In this embodiment, as shown in FIG11 and FIG14 , the first direction is the positive direction of the X direction, and the second direction is the positive direction of the Y direction. In other embodiments, the settings of the first direction and the second direction can be adjusted according to actual needs and are not limited here.

[0128] Please refer to Figures 11 to 13 for understanding. The unlocking device 100 also includes a shell 4, which includes two side plates 42 located on both sides of the conversion mechanism 2 along the first direction. At least one side plate 42 is provided with a first slide groove 421 and a second slide groove 422 extending along the second direction respectively. The second end 212 of the first conversion member 21 cooperates with the first slide groove 421, and the fourth end 222 of the second conversion member 22 cooperates with the second slide groove 422, so that when the first conversion member 21 and the second conversion member 22 rotate relative to the moving mechanism 1, the second end 212 and the fourth end 222 respectively move in opposite directions along the first slide groove 421 and the second slide groove 422. With the above-described structural form, the cooperation between the first slide 421 and the second end 212 and the cooperation between the second slide 422 and the fourth end 222 can provide guidance for the movement of the second end 212 and the fourth end 222, so that the second end 212 and the fourth end 222 can both move in a preset direction, thereby improving the stability and reliability of the movement of the second end 212 and the fourth end 222, thereby improving the stability and reliability of the movement of the unlocking mechanism 3 connected to the second end 212 in the second direction, improving the accuracy of the unlocking mechanism 3 and the locking mechanism in unlocking, and improving the efficiency of unlocking. In this embodiment, the first slide 421 and the second slide 422 are connected, which has the characteristic of convenient processing. In other embodiments, the first slide 421 and the second slide 422 may not be connected, and the form of the first slide 421 and the second slide 422 is not limited here.

[0129] As shown in Figures 11 to 13, at least one side plate 42 is further provided with a third slot 423 extending in the first direction. Both the first end 211 of the first conversion member 21 and the third end 221 of the second conversion member 22 engage with the third slot 423, enabling the movable mechanism 1 to drive the first and third ends 211, 221 to move in the first direction, while causing the second and fourth ends 212, 222 to move in opposite directions. Specifically, the movable mechanism 1 drives the first and third ends 211, 221 to move along the third slot 423. Through the engagement of the first and second slots 421, 422 with the second and fourth ends 212, 222, respectively, the second end 212 drives the unlocking mechanism 3 toward the locking mechanism, while the fourth end 222 moves away from the unlocking mechanism 3, thereby unlocking the battery pack. As the second end 212 drives the unlocking mechanism 3 toward the locking mechanism, the fourth end 222 moves away from the locking mechanism, further improving the stability and reliability of the second end 212 driving the unlocking mechanism 3. After unlocking is complete, the moving mechanism 1 drives the first end 211 and the third end 221 to move in a direction opposite to the first direction. The first and second sliding grooves 421 and 422 engage with the second end 212 and the fourth end 222, respectively, causing the fourth end 222 to drive the unlocking mechanism 3 away from the locking mechanism to its initial position, thereby completing the unlocking of the battery pack. As the second end 212 drives the unlocking mechanism 3 away from the locking mechanism, the fourth end 222 also moves away from the locking mechanism, further improving the stability and reliability of the second end 212 driving the unlocking mechanism 3. In other words, with the above-mentioned structural form, the first end 211 and the third end 221 both cooperate with the third slide groove 423, thereby providing guidance for the movement of the first end 211 and the third end 221, so that the first end 211 and the third end 221 can both move in a certain direction, thereby improving the stability and reliability of the movement of the first end 211 and the third end 221, and further driven by the first end 211 and the third end 221, the stability and reliability of the movement of the second end 212 and the fourth end 222 are also improved, further improving the stability and reliability of the unlocking mechanism 3 moving in the second direction, and also improving the accuracy and efficiency of the unlocking by the unlocking mechanism 3 in cooperation with the locking mechanism.

[0130] As shown in Figure 15, there are two first conversion members 21 and two second conversion members 22. The two second ends 212 are connected to the two sides of the unlocking mechanism 3 via the first connecting shaft 23. The two fourth ends 222 cooperate with the second slide groove 422 via the second connecting shaft 24. The two first ends 211 and the two third ends 221 are connected to the two sides of the moving mechanism 1 via the third connecting shaft 25. With the above-described structure, there are two first conversion members 21 and two second conversion members 22, and the two second ends 212 are connected to the two sides of the unlocking mechanism 3 via the first connecting shaft 23. This makes the structure of the entire conversion mechanism 2 more stable and reliable, and also improves the stability of the connection and support of the unlocking mechanism 3. This improves the stability and reliability of the movement of the unlocking mechanism 3, and further improves the accuracy of the unlocking of the unlocking mechanism 3 in cooperation with the locking mechanism, thereby improving the efficiency of unlocking. The two fourth ends 222 are engaged with the second slide groove 422 via the second connecting shaft 24. Driven by the second connecting shaft 24, the fourth ends 222 can move along the second slide groove 422, allowing the fourth ends 222 to move in a certain direction, thereby improving the stability and reliability of the movement of the fourth ends 222. The two first ends 211 and the two third ends 221 are connected to both sides of the mobile mechanism 1 via the third connecting shaft 25, facilitating the connection of the two first ends 211 and the two third ends 221 to the mobile mechanism 1.

[0131] As shown in FIG13 , the number of the first slide groove 421 and the second slide groove 422 are both two, which are respectively located at the corresponding positions of the two side plates 42, and a first rolling member 6 is provided at both ends of the first connecting shaft 23, and the rolling surface of the first rolling member 6 fits in with the groove wall of the first slide groove 421 in a one-to-one correspondence; adopting the above-mentioned structural form, the rolling surface of the first rolling member 6 fits in with the groove wall of the first slide groove 421, thereby reducing the friction between the movement of the first rolling member 6 and the first slide groove 421, thereby improving the smoothness of the movement of the first connecting shaft 23 relative to the first slide groove 421 and the service life of the first rolling member 6 and the first slide groove 421; as shown in FIG13 and FIG15 , the two second connecting shafts 24 are connected to the second rolling member 7, and the rolling surface of the second rolling member 7 fits in with the groove wall of the second slide groove 422 in a one-to-one correspondence; adopting the above-mentioned structural form, By fitting the rolling surface of the second rolling element 7 with the groove wall of the second slide groove 422, the friction between the first rolling element 6 and the second slide groove 422 is reduced, the smoothness of the movement of the second connecting shaft 24 relative to the second slide groove 422 and the service life of the first rolling element 6 and the second slide groove 422 are improved; as shown in Figure 13, there are two third slide grooves 423, which are respectively located at corresponding positions of the two side plates 42, and the two third slide grooves 423 are respectively adapted to the two ends of the third connecting shaft 25, thereby improving the accuracy of the unlocking of the unlocking mechanism 3 and the locking mechanism, and improving the unlocking efficiency.

[0132] In addition, in this embodiment, the two first rolling elements 6 and the two first slide grooves 421 and the second rolling element 7 and the second slide groove 422 are connected one-to-one, and the number of the third slide grooves 423 is two, and the two third slide grooves 423 are respectively adapted to the two ends of the third connecting shaft 25, thereby further improving the accuracy of the unlocking of the unlocking mechanism 3 and the locking mechanism, and improving the unlocking efficiency.

[0133] Please refer to Figures 11 to 13 for understanding. The axes of the first and second chute 421 and 422 in the second direction coincide with and extend through each other, and the third chute 423 is connected to the first and second chute 421 and 422, respectively. When the second end 212 moves to the upper limit point of the first chute 421, the unlocking mechanism 3 moves to the unlocking position of the unlocking mechanism 3. When the first end 211 and the third end 221 move to the initial limit point of the third chute 423, the unlocking mechanism 3 moves to the initial position. With the above-mentioned structural form, the upper limit point of the first chute 421 and the initial limit point of the third chute 423 can be used to limit the first conversion member 21 and the second conversion member 22, thereby limiting the unlocking mechanism 3. Due to the use of mechanical limiting, the unlocking mechanism 3 can be directly positioned without the need for additional positioning detection, thereby improving the unlocking efficiency and thereby increasing the speed of removing the battery pack from the battery-swap vehicle. At the same time, such a configuration makes the structure of the unlocking device 100 relatively simple, without the need for an additional detection unit. In addition, the above-mentioned structural form improves the assembly efficiency, and the provision of the slide groove reduces the weight of the unlocking device 100, which is conducive to the lightweighting of the unlocking device.

[0134] In other embodiments, the highest point of the first slide groove 421 may not correspond to the unlocking position of the unlocking mechanism 3. Instead, a detection unit may be provided to perform position detection on the first connecting shaft 23 to control the displacement of the unlocking mechanism 3 to ensure that the unlocking mechanism 3 reaches the unlocking position and cooperates with the locking mechanism to unlock.

[0135] As shown in Figures 11 to 15, the housing 4 also includes a top plate 41, the ends of which are respectively connected to at least portions of the two side plates 42. A sliding sleeve 43 is provided on the top plate 41, and a connecting hole 431 is defined within the sliding sleeve 43. The axis of the connecting hole 431 coincides with the axis of the unlocking mechanism 3, and the connecting hole 431 is configured for sliding connection with the unlocking mechanism 3. With this structure, the sliding sleeve 43 can guide the unlocking mechanism 100, improving the stability of the unlocking mechanism 3. The sliding sleeve 43 can also reduce friction within the unlocking mechanism 3, reducing wear and tear on the unlocking mechanism 3 and increasing its service life. Furthermore, the ends of the top plate 41 are respectively connected to at least portions of the two side plates 42, improving the structural strength of the side plates 42 and top plate 41, thereby improving the overall structural strength of the unlocking mechanism 100.

[0136] In this embodiment, the two ends of the top plate 41 are preferably connected to portions of the two side plates 42, respectively. This reduces the size of the top plate 41 while ensuring the structure and strength of the housing 4, thereby reducing the weight of the unlocking device 100. As shown in Figures 11 to 15, the unlocking device 100 also includes a drive mechanism 5, which is connected to the mobile mechanism 1 and is located at an end of the mobile mechanism 1 away from the conversion mechanism 2 along the first direction. Specifically, the push rod 51 of the drive mechanism 5 is connected to the mobile mechanism 1, so that the push rod 51 of the drive mechanism 5 moves in the first direction, thereby driving the mobile mechanism 1 to move in the first direction, and the mobile mechanism 1 drives the conversion mechanism 2 to move, thereby converting the movement of the mobile mechanism 1 in the first direction into the movement of the unlocking mechanism 3 in the second direction. In other words, using the above-mentioned structural form, the drive mechanism 5 provides power to the mobile mechanism 1, thereby realizing automatic control of the unlocking device 100.

[0137] In this embodiment, a receiving cavity is defined at one end of the movable mechanism 1 near the drive mechanism 5, into which the push rod 51 of the drive mechanism 5 extends and connects. As shown in Figures 11 to 14, the housing 4 further includes a vertical plate 44 located on the side of the movable mechanism 1 near the drive mechanism 5. The vertical plate 44 is connected to the two side plates 42 on either side. The vertical plate 44 defines a through-hole 442 and an opening 441. The push rod 51 of the drive mechanism 5 extends through the through-hole 442 and connects to the movable mechanism 1. The opening 441 extends from the top or bottom of the vertical plate 44 to the through-hole 442 and communicates with the through-hole 442. The two sides of the vertical plate 44 are respectively connected to the two side plates 42, thereby improving the strength of the overall structure of the shell 4; in addition, the push rod 51 of the driving mechanism 5 needs to pass through the through hole 442 and then be connected to the moving mechanism 1, and the opening 441 extends from the top or bottom of the side plate 42 to the through hole 442 and is connected to the through hole 442; thus, when installing the push rod 51, the push rod 51 can move directly from the opening 441 to the position of the through hole 442, which facilitates the installation of the driving mechanism 5, and the above-mentioned structural form avoids interference between the driving mechanism 5 and the vertical plate 44, improves the stability and reliability of the movement of the push rod 51, thereby improving the stability and reliability of the movement of the moving mechanism 1, the conversion mechanism 2 and the unlocking mechanism 3 under the drive of the push rod 51.

[0138] In this embodiment, the opening 441 extends from the bottom of the vertical plate 44 toward the through hole 442 and communicates with the through hole 442. In other embodiments, the extending direction of the opening 441 can be adjusted according to actual needs and is not limited here.

[0139] As shown in Figures 11 to 14, the shell 4 also includes a bottom plate 45, which is arranged opposite to the top plate 41, and the two ends of the bottom plate 45 are respectively connected to at least part of the two side plates 42 to form a receiving cavity for accommodating the mobile mechanism 1 and the conversion mechanism 2. Specifically, the two ends of the bottom plate 45 are respectively connected to the two side plates 42, which further improves the overall structural strength of the shell 4; the bottom plate 45 and the two side plates 42 and the top plate 41 form a receiving cavity for accommodating the mobile mechanism 1 and the conversion mechanism 2, so that the mobile mechanism 1 and the conversion mechanism 2 can be protected by the receiving cavity, thereby improving the service life of the mobile mechanism 1 and the conversion mechanism 2. In addition, with the above-mentioned structural form, since the receiving cavity can accommodate the mobile mechanism 1 and the conversion mechanism 2, the unlocking device 100 can be assembled into an integral module, which is convenient for subsequent installation in a modular form on the battery-exchange vehicle 1000.

[0140] In this embodiment, the ends of the base plate 45 are preferably connected to portions of the two side plates 42, respectively. This reduces the size of the base plate 45 while ensuring the structure and strength of the housing 4, thereby reducing the weight of the unlocking device 100. Referring to Figures 13 to 15 , the unlocking mechanism 3 includes a mounting member 32 and an unlocking member 31. The mounting member 32 is used to mount the unlocking member 31 and is connected to the second end 212, thereby facilitating the connection between the second end 212 and the unlocking member 31. Specifically, the two sides of the mounting member 32 are connected to the two second ends 212 in a one-to-one correspondence. As shown in Figures 11 to 16 , the unlocking member 31 includes a body 311 and a rod 312. The body 311 defines a sliding cavity 3111 with a mounting opening 34. One end of the rod 312 extends from the mounting opening 34 into the sliding cavity 3111 and is slidable relative to the sliding cavity 3111 in a second direction. The end of the body 311, distal from the rod 312, is fixed to the mounting member 32. The above-described structure, by arranging the rod 312 to slide relative to the sliding cavity 3111, acts as a buffer when the unlocking mechanism 3 and the locking mechanism come into contact. When the unlocking mechanism 3 moves excessively, the rod 312 absorbs and disperses some of the force and impact, preventing excessive force from being transmitted to the body 311 and the locking mechanism. This reduces the risk of structural damage, protects the entire unlocking device 100 and the associated mechanical structure, and extends its service life and reliability. During actual use, the end of the rod 312 that extends into the accommodating cavity is configured to be unable to disengage from the sliding cavity 3111.

[0141] As shown in FIG17 , this embodiment further discloses a battery-swapping trolley 1000, which includes the above-mentioned unlocking device 100. The second end 212 is driven to move in the second direction by the movement of the moving mechanism 1, and the movement of the moving mechanism 1 in the first direction is converted into the movement of the unlocking mechanism 3 in the second direction, so that the unlocking mechanism 3 can cooperate with the unlocking mechanism 3 after moving a preset distance in the second direction, thereby unlocking the battery pack; through the coordinated use of the moving mechanism 1 and the conversion mechanism 2, the lifting and lowering of the unlocking mechanism 3 in the second direction is realized, which reduces the complexity of the unlocking device 100 and miniaturizes the overall structure of the unlocking device 100, thereby making the battery-swapping trolley 1000 more compact. In addition, with the above-described structural form, the first conversion member 21 and the second conversion member 22 form a scissor-like structure relative to each other, so that when the first end 211 and the third end 221 move in the first direction, the second end 212 and the fourth end 222 move in opposite directions. As a result, the unlocking mechanism 3 connected to the second end 212 can be raised and lowered in the second direction to pass through the movement of the fourth end 222, providing guidance for the movement of the second end 212, improving the stability and reliability of the movement of the second end 212, thereby ensuring the stability and reliability of the movement of the unlocking mechanism 3 connected to the second end 212, and improving the stability and reliability of the battery pack unlocking. Finally, due to the low complexity of the unlocking device 100, the assembly time of the unlocking device 100 is also reduced, thereby improving the efficiency of the assembly and maintenance of the unlocking device 100.

[0142] Example 4

[0143] As shown in Figures 18 to 26, this embodiment discloses a battery exchange device 100, which includes an unlocking device, which is configured as an unlocking component 10. The unlocking component 10 includes an unlocking mechanism, a moving mechanism and a conversion mechanism. The unlocking mechanism includes an unlocking rod 1. The unlocking component 10 includes a main body 1. The unlocking rod 11 is installed on the main body 1. The unlocking rod 11 is used to unlock the locking mechanism of the locked battery pack. A follower 2 is provided on the unlocking rod 11, and the unlocking rod 11 is configured to be telescopically movable only along the second direction L1; the moving mechanism includes an active part 3, and a mating part 31 that cooperates with the follower 2 is provided on the active part 3. The conversion mechanism includes a follower 2, and the active part 3 is configured to be able to move along a first direction L2 perpendicular to the second direction L1. The mating part 31 is obliquely arranged and forms an angle with the first direction L2. The active part 3 moves along the first direction L2 to drive the follower 2 to move relative to the mating part 31 to drive the unlocking rod 11 to move along the second direction L1.

[0144] Specifically, in this embodiment, the unlocking component 10 also includes a driving part 5, which can use a motor or a cylinder to output power. Under the drive of the driving part 5, the active part 3 moves along the first direction L2 perpendicular to the second direction L1, and the oblique setting of the matching part 31 enables the movement of the active part 3 in the first direction L2 to effectively drive the relative movement of the follower 2, thereby driving the unlocking rod 11 to move along the second direction L1 to realize the unlocking operation. The key components such as the unlocking rod 11, the follower 2 and the active part 3 are compactly integrated together. This structural compactness can significantly reduce the overall volume, making the unlocking component easier to assemble in the battery swap. The unlocking mechanism 10 is adapted to move the unlocking rod 11 in the first direction L2 so that the unlocking rod 11 can move in the second direction L1. The unlocking mechanism 10 is adapted to move the unlocking rod 11 in the first direction L2 so that the unlocking rod 11 can move in the second direction L1. The unlocking mechanism 10 is adapted to move the unlocking rod 11 in the first direction L2 so that the unlocking rod 11 can move in the second direction L1. The unlocking mechanism 10 is adapted to move the unlocking rod 11 in the first direction L2 so that the unlocking rod 11 can move in the second direction L1.

[0145] Specifically, as shown in Figure 21, the unlocking assembly 10 further includes a mounting plate 46, which is mounted on the side of the main body 1 opposite to the active portion 3. The main body 1 is mounted on the battery exchange device 100 via the mounting plate 46. As shown in Figures 22 to 24, the unlocking assembly 10 further includes a guide rail 41 extending along the second direction L1 and a guide block 42 cooperating with the guide rail 41. The guide rail 41 is fixed to the main body 1, and the guide block 42 is connected to the unlocking rod 11. The guide block 42 can move along the extension direction of the guide rail 41 to drive the unlocking rod 11 to move along the second direction L1.

[0146] In this embodiment, the guide rail 41 is a linear guide device, which extends along the second direction L1 and provides a stable track for the movement of the unlocking rod 11. The guide block 42 can be a slider or a similar component, which can cooperate with the guide rail 41 and move along the extension direction of the guide rail 41. The combination of the guide rail 41 and the guide block 42 makes the unlocking operation more stable, precise and reliable. The track provided by the guide rail 41 ensures that the movement trajectory of the unlocking rod 11 always remains consistent, reducing the possibility of swinging and deviation. The cooperation between the guide block 42 and the guide rail 41 enables the unlocking rod 11 to move along the extension direction of the guide rail 41, ensuring smooth movement and reaching the accurate position during the unlocking process, thereby ensuring the stability and accuracy of the unlocking operation, reducing the risk of unlocking failure, and improving the safety of the unlocking operation.

[0147] As shown in Figures 22-24, one end of the unlocking lever 11 is located within the main body 1, while the other end of the unlocking lever 11 extends out of the main body 1. A follower is disposed on the end of the unlocking lever 11 located within the main body 1. By securing one end of the unlocking lever 11 within the main body 1, the unlocking lever 11 can move more stably during the unlocking process, reducing the possibility of loosening or shaking of the lever during operation. This design also protects the unlocking lever 11 from external interference or damage. By mounting the follower at the inner end of the unlocking lever 11, loosening or shaking of the connection can be reduced, ensuring that the follower accurately follows the movement of the unlocking lever 11 during the unlocking process, thereby improving the accuracy of the unlocking operation. As shown in Figures 22 and 23, the unlocking assembly 10 also includes a connecting plate 43 disposed within the main body 1 and secured to the unlocking lever 11. The side of the connecting plate 43 facing the active portion 3 is connected to the follower, while the side of the connecting plate 43 facing away from the active portion 3 is connected to the guide block 42. The connecting plate 43 ensures the stability and reliability of the unlocking rod 11 by fixing the connection between the unlocking rod 11 and the main body 1. At the same time, the connecting plate 43 also provides a connection point with the follower and the guide block 42, so that the follower, the unlocking rod 11 and the guide block 42 can cooperate with each other to move, and the follower 2 and the guide block 42 can be connected to the connecting plate 43 relatively easily, thereby simplifying the assembly process; since the necessary functions and connection points are integrated on the connecting plate 43, too many scattered components are avoided, thereby reducing the complexity of the overall structure and making the structure more compact; the connecting plate 43 is connected to the guide block 42 on the side away from the active part 3, ensuring that the guide block 42 can stably guide the movement of the unlocking rod 11 to avoid swinging or deviation during the unlocking process. Through the setting and connection layout of the connecting plate 43, the various parts of the unlocking assembly 10 can work closely together to achieve stability and accuracy in the unlocking process.

[0148] Specifically, as shown in Figure 23, the follower 2 includes a fixed shaft 21 fixed to the unlocking lever 11 and a rolling member 22 rotatably mounted on the fixed shaft 21. The mating member 31 is a chute, and the rolling surface of the rolling member 22 mates with the chute. In this embodiment, since the rolling member 22 is mounted on the fixed shaft 21 and can rotate about the fixed shaft 21, the rolling member 22 has a cylindrical shape, and the chute is a rectangular groove with an inclined surface. The inclined surface of the chute mates with the rolling surface of the rolling member 22, allowing the rolling member 22 to roll freely on the chute. Through the combination of the fixed shaft 21 and the rolling member 22, and the cooperation with the chute, the follower 2 can rotate and slide relative to the unlocking lever 11, achieving telescopic movement of the unlocking lever 11 along the second direction L1, making the unlocking operation more flexible and controllable. By controlling the sliding of the rolling member 22 within the chute, the movement distance and speed of the unlocking lever 11 can be precisely controlled, ensuring the accuracy and stability of the unlocking process.

[0149] Specifically, the slide groove is set at an angle to both the second direction and the first direction, that is, it is inclined relative to the telescopic direction of the unlocking rod 11 and the driving direction of the active part 3. When the unlocking operation starts, the active part 3 moves along the first direction, driving the rolling element connected to the slide groove. Due to the cooperation between the rolling element and the slide groove, the rolling element will be affected by the inclined surface of the slide groove, causing the rolling element to rotate in the slide groove and slide along the slide groove at the same time, and then the rolling element drives the unlocking rod 11 to telescopic movement in the second direction to perform the unlocking operation.

[0150] As shown in FIG19 , the unlocking assembly 10 further includes a first sensing unit 44 and a second sensing unit 45 . The first sensing unit 44 and the second sensing unit 45 correspond to the lowest and highest points of the travel of the unlocking lever 11 in the second direction L1, respectively, to control the driving unit 5 to stop moving after the unlocking lever 11 reaches the corresponding positions. The first sensing unit 44 senses the lowest point of the travel of the unlocking lever 11 in the second direction L1. Once the unlocking lever 11 reaches the lowest point, the first sensing unit 44 sends a signal to control the driving unit 5, and thus the active unit, to stop moving. This ensures that the unlocking lever 11 does not exceed the required lowest position during the unlocking process. Similarly, the second sensing unit 45 senses the highest point of the travel of the unlocking lever 11 in the second direction L1. Once the unlocking lever 11 reaches the highest point, the second sensing unit 45 sends a signal to control the driving unit 5 to stop moving. This ensures that the unlocking lever 11 does not exceed the required highest position during the unlocking process. By introducing these two sensing units, the unlocking assembly 10 can automatically stop moving after the unlocking lever 11 reaches the predetermined position, preventing the unlocking lever 11 from overextending or exceeding the predetermined position, thereby ensuring the accuracy and reliability of the unlocking process.

[0151] As shown in FIG19 , a first sensing unit 44 and a second sensing unit 45 are positioned toward the chute and along the path along which the chute moves with the active unit 3. The first sensing unit 44 and the second sensing unit 45 detect the rolling element 22. By cooperating with the chute and the rolling element 22, the first sensing unit 44 and the second sensing unit 45 are able to sense the lowest and highest points of travel of the unlocking lever 11 in the second direction L1. The rolling element 22 is a component of the follower 2 and is rotatably mounted on the fixed shaft 21 fixed to the unlocking lever 11. The first sensing unit 44 senses the position of the rolling element 22. When the rolling element 22 reaches the position corresponding to the chute, the first sensing unit 44 generates a signal to control the driving unit 5 to stop moving. Similarly, the second sensing unit 45 is also positioned on the chute and also detects the rolling element 22. The second sensing unit 45 senses the position of the rolling element 22. When the rolling element 22 reaches the other position corresponding to the chute, the second sensing unit 45 generates a signal to control the driving unit 5 to stop moving. This design is simple in structure and more compact overall. Of course, in other alternative embodiments, the first sensing unit 44 and the second sensing unit 45 may also directly detect the unlocking lever 11. Specifically, the first sensing unit 44 and the second sensing unit 45 are mounted on the main body 1 and include sensors, such as photoelectric sensors, magnetic induction sensors, etc. These sensors can sense position changes of the rolling element 22 and convert the sensed signals into electrical signals or digital signals.

[0152] The specific control process is as follows: when the active part is in the original position, the unlocking rod is at the lowest point, and the corresponding rolling element 22 does not move in the sliding groove and is in the sensing position of the first sensing unit 44. When the unlocking assembly needs to perform the operation of unlocking the locking mechanism, the active part moves along the first direction, and the slide moves accordingly, causing the rolling element to move in the slide and gradually move in the second direction, while driving the unlocking rod to move toward the highest point in the second direction. When the rolling element 22 moves to the position of the second sensing unit 45 in the slide, the second sensing unit 45 will sense the position of the rolling element 22. At this time, the unlocking rod 11 is at the highest point in the second direction L1, and sends a signal to the control mechanism to control the active part to stop moving, thereby preventing the unlocking rod 11 from continuing to move upward; when the unlocking is completed, the active part moves in the opposite direction along the first direction to reset to the original position, and the slide moves in the opposite direction accordingly, causing the rolling element to move in the slide and gradually move in the opposite direction in the second direction, while driving the unlocking rod to move toward the lowest point in the second direction. When the rolling element 22 moves to the position of the first sensing unit 44 in the slide, the first sensing unit 44 will sense the position of the rolling element 22. At this time, the unlocking rod 11 is at the lowest point in the second direction L1, and the active part returns to its original position, which sends a signal to the control mechanism to control the active part to stop moving.

[0153] As shown in Figure 23, the main body 1 includes a top plate 12. A sleeve 13 is mounted on the top plate 12 in a first direction L2. An unlocking lever 11 is mounted within the sleeve 13, with one end extending out of the sleeve 13 and capable of telescopic movement relative to the sleeve 13 in the first direction L2. By mounting the sleeve 13 and unlocking lever 11 on the top plate 12, the unlocking lever 11 can be guided by the sleeve 13 to stably telescopically move in the first direction L2. The sleeve 13 provides stable support for the unlocking lever 11, preventing it from swaying or deviating during operation. This effectively controls the position and range of motion of the unlocking lever 11, ensuring the accuracy and reliability of the unlocking action.

[0154] As shown in Figures 22-24, the main body 1 also includes a side panel 14, which is connected to the top panel 12 and is arranged opposite to the active part 3; there are at least two groups of guide rails 41 and guide blocks 42, wherein the two guide rails 41 are respectively fixed on the side panels 14 and are arranged parallel to both sides of the unlocking rod 11; the two guide blocks 42 are arranged corresponding to the two guide rails 41 and are respectively connected to the connecting plate 43. By connecting the side panels 14 and the top panel 12, and by being arranged relative to the active portion 3, the main body 1 increases the overall structural stability and ensures the independent movement space of the active portion 3, thereby preventing interference between the active portion 3 and the side panels 14, ensuring that the active portion 3 can move freely along the first direction L2, and coordinate with the follower 2 and the unlocking rod 11 to achieve accurate control and unlocking operation of the unlocking rod 11; by at least two sets of parallel guide rails 41 and guide blocks 42, better support and guidance can be provided for the unlocking rod 11, so that the unlocking rod 11 can maintain a stable movement trajectory during the unlocking process, and the unlocking operation is more balanced and controllable, reducing the risk of accidental unlocking or unlocking failure during the unlocking process, and improving the safety and reliability of unlocking. Furthermore, the mounting plate 46 is fixed to the outside of the side panel 14 to be connected to the battery exchange equipment.

[0155] In another embodiment, the main body 1 further comprises a bottom plate 15, which is arranged opposite to the top plate 12 and respectively connected to the side plates 14. The bottom plate 15 is provided with opposing bottom guide grooves 151 at one end away from the side plates 14, and the top plate 12 is provided with opposing top guide grooves 121 at one end away from the side plates 14. The bottom guide grooves 151 and the top guide grooves 121 are arranged opposite to each other and both extend in a first direction. The active portion 3 is arranged opposite to the side plates 14, and its two ends are respectively embedded in the bottom guide grooves 151 and the top guide grooves 121, so that the active portion 3 moves in the first direction along the bottom guide grooves 151 and the top guide grooves 121. Furthermore, the bottom plate 15 is provided with a through hole corresponding to the position of the unlocking lever 11 to facilitate subsequent repair and maintenance of the unlocking lever 11, as well as the position of the adjustable rolling element. In other embodiments, the main body 1 can also have a fixed plate 16, which is connected between the bottom plate 15 and the top plate 12 and is located on the outside of the active part 3 so as not to interfere with the movement of the active part 3. The first sensing unit 44 and the second sensing unit 45 are correspondingly installed on the fixed plate 16.

[0156] As shown in Figures 25 and 26, the unlocking lever 11 includes a fixed portion 111 and a telescopic portion 112. The fixed portion 111 is mounted on the main body 1, and the telescopic portion 112 can be extended and retracted relative to the fixed portion 111 and used to unlock the lock. The design of the telescopic portion 112 allows the telescopic portion 112 to act as a buffer when it retracts and retracts relative to the fixed portion 111. When the unlocking lever 11 is subjected to a large force or moves excessively, the telescopic portion 112 can absorb and disperse some of the force and impact, preventing excessive force from being transmitted to the main body 1 and the locking mechanism. This reduces the risk of structural damage, protects the entire unlocking assembly 10 and related mechanical structures, and extends its service life and reliability.

[0157] Specifically, in this embodiment, the unlocking rod 11 adopts the form of a nitrogen spring to realize the expansion and contraction of the telescopic part 112 relative to the fixed part 111, wherein the fixed part 111 includes a accommodating cavity 113, and the telescopic part 112 and the fixed part 111 are nested through the accommodating cavity 113. The telescopic part 112 and the fixed part 111 are sealed and the accommodating cavity 113 is filled with nitrogen, and elastic deformation is generated by the compression of the gas. When external pressure or load is applied to the nitrogen spring, the nitrogen will be compressed and generate a corresponding reaction force. When the external pressure or load decreases, the nitrogen will expand again, and the compression of the gas causes the telescopic part 112 to expand and contract relative to the fixed part 111; of course, in other alternative embodiments, a mechanical spring can also be used to connect the telescopic part 112 and the fixed part 111. The compression and release of the spring can make the telescopic part 112 expand and contract relative to the fixed part 111. By selecting a suitable spring type and spring preload, different expansion lengths and unlocking forces can be achieved.

[0158] Example 5

[0159] As shown in Figures 27 to 36, this embodiment discloses a battery swapping device 100, which is used to replace the battery pack for a battery swapping vehicle. The battery swapping device 100 includes an unlocking device, which is configured as an unlocking component 10. The unlocking component 10 includes a moving mechanism, an unlocking mechanism and a conversion mechanism. The unlocking mechanism includes an unlocking rod 1, which is used to unlock the locking mechanism of the locked battery pack. The conversion mechanism includes a connecting part 2, and the moving mechanism includes a driving part 3. One end of the connecting part 2 is rotatably connected to the unlocking rod 1 by at least one side of the unlocking rod 1, and the other end of the connecting part 2 is rotatably connected to the driving part 3 by at least one side of the driving part 3. The driving part 3 moves along a first direction L1 to drive the connecting part 2 to rotate relative to the driving part 3, so that the unlocking rod 1 moves a preset distance along a second direction L2 perpendicular to the first direction L1 to cooperate with the locking mechanism and unlock. In this embodiment, the unlocking assembly 10 is composed only of the unlocking rod 1 and the driving part 3 that are rotatably connected at both ends of the connecting part 2, so that the structure is relatively simple, the volume and space occupied by the unlocking assembly 10 are reduced, and the assembly is convenient, making it easier to integrate into the battery exchange device 100 and easy to implement. At the same time, the unlocking assembly 10 drives the unlocking rod 1 to move in the second direction L2 perpendicular to the first direction L1 by driving the rotation of the connecting part 2 along the first direction L1, thereby reducing the limitation of driving the unlocking rod 1 in the second direction L2 for unlocking. The unlocking action of the unlocking assembly 10 no longer depends on the driving force in the second direction L2, which enables the unlocking assembly 10 to more flexibly adapt to different types and directions of locking mechanisms during the unlocking process, making the unlocking process more flexible and universal. This increase in flexibility will make the unlocking assembly 10 more applicable when facing a variety of different locking mechanisms and unlocking methods, and also help to simplify the unlocking operation, reduce the complexity and maintenance cost of the unlocking assembly 10, and thus improve the reliability and availability of the overall system.

[0160] Preferably, as shown in Figure 30, one end of the connecting part 2 is rotatably connected to the unlocking rod 1 from both sides of the unlocking rod 1, and the other end of the connecting part 2 is rotatably connected to the driving part 3 from both sides of the driving part 3, wherein at least one side of the unlocking rod 1 is one side or both sides along the extension direction of the unlocking rod 1, and at least one side of the driving part 3 is one side or both sides along the extension direction of the driving part 3.

[0161] Specifically, in this embodiment, the end of the connecting portion 2 connected to the unlocking lever 1 is configured to move only in the second direction L2. By configuring the end of the connecting portion 2 connected to the unlocking lever 1 to move only in the second direction L2, the unlocking lever 1 can only move in the second direction L2, which is perpendicular to the first direction L1, during the unlocking process. This prevents unnecessary movement in other directions, thereby further ensuring the stability and accuracy of the unlocking action, making the unlocking assembly 10 easier to control, and improving the reliability of the unlocking process. Of course, in other alternative embodiments, the end of the connecting portion 2 connected to the unlocking lever 1 can also move in other directions.

[0162] Specifically, as shown in Figure 30, both sides of the driving portion 3 are connected to the connecting portion 2 via the first rotating shaft 21, and both sides of the unlocking lever 1 are connected to the connecting portion 2 via the second rotating shaft 22. The driving portion 3 is connected to the connecting portion 2 via the first rotating shaft 21, and the unlocking lever 1 is connected to the connecting portion 2 via the second rotating shaft 22, so that the driving portion 3 can move along the first direction L1, and the unlocking lever 1 is driven by the connecting rod action of the connecting portion 2. That is, the movement of the driving portion 3 drives the connecting portion 2 to rotate, and the connecting portion 2 acts as a connecting rod, converting the movement of the driving portion 3 into the movement of the unlocking lever 1, so that the unlocking lever 1 can move in a direction perpendicular to the first direction L1 to unlock, thereby enhancing the flexibility and versatility of the unlocking process. As shown in FIG28 , the unlocking assembly 10 further includes a first housing 41 and a second housing 42, both of which are hollow. The second housing 42 is located above the first housing 41 along the second direction L2 and is interconnected. The driving unit 3 is at least partially located within the first housing 41, and the unlocking lever 1 is at least partially located within the second housing 42. The connecting portion 2 connects the end of the driving unit 3 located within the first housing 41 and the end of the unlocking lever 1 located within the second housing 42, respectively. The first housing 41 accommodates the driving unit 3, protecting it from the external environment, while the second housing 42 accommodates the unlocking lever 1, providing a protected and stable working environment. The arrangement of the first housing 41 and the second housing 42 provides isolation and protection for the driving unit 3 and the unlocking lever 1. Because the driving unit 3 and the unlocking lever 1 are each located within separate housings, this design optimizes space utilization, avoids interference and collision between components, and helps ensure that the unlocking assembly 10 does not conflict or interfere during operation. Furthermore, if maintenance is required on the driving unit 3 or the unlocking lever 1, the corresponding housing can be opened separately without disturbing the other components. The separate housing design allows for independent maintenance and replacement of the driving unit 3 and the unlocking lever 1. Of course, in other alternative embodiments, the housing may also be integrally formed.

[0163] As shown in Figure 28, the first shell 41 is provided with a first limiting groove 411 extending along the first direction L1 on the two opposite side walls facing the first rotating shaft 21, and the first rotating shaft 21 is provided with a first rolling member 211 that cooperates with the first limiting groove 411 to guide the driving part 3 to move in the first direction L1; the second shell 42 is provided with a second limiting groove 421 extending along the second direction L2 on the two opposite side walls facing the second rotating shaft 22, and the second rotating shaft 22 is provided with a second rolling member 221 that cooperates with the second limiting groove 421 to guide the unlocking rod 1 to move in the second direction L2. The first limiting groove 411 and the second limiting groove 421 cooperate with the corresponding rolling element to provide guidance and limiting functions for the driving unit 3 and the unlocking rod 1 in the first direction L1 and the second direction L2, which helps to ensure that the driving unit 3 and the unlocking rod 1 move according to the predetermined trajectory and range during the movement, thereby enhancing the controllability and accuracy of the unlocking process. Through guidance and limiting, the driving unit 3 and the unlocking rod 1 are properly constrained and guided during the movement, thereby improving the stability and reliability of the unlocking assembly 10 and reducing misoperation and damage caused by unstable movement. In addition, during assembly, the rotating shaft and the rolling element can be more easily assembled into the corresponding limiting groove, thereby achieving rapid assembly. The design of the rolling element and the limiting groove makes the assembly and maintenance of the unlocking assembly 10 more convenient. Of course, in other alternative embodiments, the limiting grooves on the first shell 41 and the second shell 42 and the rolling elements that cooperate therewith can also be provided separately. Furthermore, the drive unit 3 includes a motor, a power output shaft, and a connecting block connected to the power output shaft. The connecting block is configured to rotate relative to the power output shaft about the second direction L2 as the central axis. As shown in Figure 30, the first rotating shaft 21 is a long axis that extends through the connecting block, and second rolling elements are mounted on each end of the first rotating shaft 21. In other embodiments, the connecting block may not be provided, and the first rotating shaft may directly engage with the power output shaft; alternatively, the motor may be replaced with another power source such as a cylinder.

[0164] As shown in Figure 34, the second rotating shaft 22 includes two sub-rotating shafts extending on the same straight line and located on opposite sides of the unlocking rod 1. One end of the two sub-rotating shafts is fixed on the unlocking rod 1, and the other end is equipped with a second rolling member 221. The connecting part 2 is passed through the sub-rotating shaft and is restricted between the second rolling member 221 and the unlocking rod 1, and the connecting part 2 is rotatable relative to the sub-rotating shaft.

[0165] As shown in FIG31 , the unlocking assembly 10 further includes a first sensing unit 43 and a second sensing unit 44 spaced apart along the second direction L2. The first sensing unit 43 and the second sensing unit 44 correspond to the lowest and highest points of the unlocking lever 1's travel in the second direction L2, respectively, to control the driver 3 to stop moving when the unlocking lever 1 reaches the corresponding positions. Through the first sensing unit 43 and the second sensing unit 44, the unlocking assembly 10 can accurately sense the position of the unlocking lever 1 in the second direction L2. When the unlocking lever 1 reaches the predetermined lowest or highest point, the sensing unit sends a signal to control the driver 3 to stop moving. The position sensing unit ensures that the unlocking lever 1 stops at the correct position, thereby ensuring the reliability of the unlocking process. If the unlocking lever 1 does not reach the predetermined position, the driver 3 will not stop moving, which helps avoid problems caused by incomplete unlocking and thus precisely controls the unlocking process. Furthermore, due to the presence of the sensing unit, the driver 3 can be accurately stopped during the unlocking process, avoiding excessive movement and over-unlocking, thereby helping to protect the battery pack and locking mechanism and preventing accidental damage or safety issues caused by over-unlocking. Specifically, the first sensing unit 43 and the second sensing unit 44 are installed on the second shell 42, which include sensors, which can be photoelectric sensors, magnetic induction sensors, etc. These sensors can sense the position changes of the unlocking rod 1 and convert the sensed signals into electrical signals or digital signals.

[0166] The specific detection and control process is as follows: the driving unit 3 starts and begins to drive the unlocking rod 1 to move along the second direction L2, that is, to perform an unlocking operation. At the same time, the first sensing unit 43 and the second sensing unit 44 continue to monitor the position of the unlocking rod 1. When the unlocking rod 1 reaches the predetermined highest point, the second sensing unit 44 senses this position and sends a signal to the control system. After receiving the signal from the second sensing unit 44, the control system confirms that the unlocking rod 1 has reached the target position. The control system transmits the confirmation signal to the driving unit 3 to confirm that the unlocking rod 1 has stopped moving in the correct position. After unlocking, the driving unit 3 drives the unlocking rod 1 to reset. When the unlocking rod 1 reaches the predetermined lowest point, the first sensing unit 43 senses this position and sends a signal to the control system. After receiving the signal from the first sensing unit 43, the control system stops the movement of the driving unit 3 to prevent the unlocking rod 1 from continuing to move downward.

[0167] As shown in FIG31 , the first sensing unit 43 and the second sensing unit 44 are arranged corresponding to the second limiting groove 421, and the first sensing unit 43 and the second sensing unit 44 detect the second rolling element 221. Indirect detection of the position of the unlocking lever 1 via the second rolling element 221 helps avoid interference between the sensing units and other structures, compared to directly measuring the position of the unlocking lever 1, making the structure of the unlocking assembly 10 simpler, more compact, and more reasonable. Of course, in other alternative embodiments, the first sensing unit 43 and the second sensing unit 44 can also be arranged directly corresponding to the unlocking lever 1 and directly detect the position of the unlocking lever 1.

[0168] Specifically, the unlocking assembly 10 further includes a third sensing unit 47 and a fourth sensing unit 48 spaced apart along the first direction. The third sensing unit 47 and the fourth sensing unit 48 correspond to the origin and arrival points of the travel of the driving unit 3 in the first direction, respectively, to control the driving unit 3 to stop moving after the driving unit 3 has extended to the desired distance. By monitoring the position of the driving unit in the first direction by the third sensing unit 47 and the fourth sensing unit 48, precise control of the driving unit 3 can be achieved, ensuring that the driving unit 3 stops at the correct position, helping to optimize the unlocking process and improving the efficiency and reliability of the unlocking assembly 10.

[0169] Specifically, the third sensing unit 47 and the fourth sensing unit 48 are arranged corresponding to the first limiting groove 411, and the detection object of the third sensing unit 47 and the fourth sensing unit 48 is the first rolling element 211. Of course, in other alternative embodiments, the third sensing unit 47 and the fourth sensing unit 48 can also be arranged directly corresponding to the driving unit 3 and directly detect the position of the driving unit 3. Specifically, a shaft sleeve 422 is installed on the top of the second shell 42, and the unlocking rod 1 is installed in the shaft sleeve 422, with one end extending out of the shaft sleeve 422 and can be telescopically moved relative to the shaft sleeve 422 in the second direction L2. By installing the shaft sleeve 422 on the top of the second shell 42, the unlocking rod 1 is protected and positioned, so that the movement of the unlocking rod 1 is constrained and controlled by the shaft sleeve 422, thereby improving the accuracy and stability of the unlocking process. The arrangement of the shaft sleeve 422 makes the movement and installation of the unlocking rod 1 more compact. The unlocking rod 1 is installed in the shaft sleeve 422 and does not take up too much space, thereby optimizing the overall structural design of the unlocking assembly 10.

[0170] As shown in Figures 31 and 32, the unlocking assembly 10 further includes a limiting portion 45. The limiting portion 45 is disposed opposite the driving unit 3 and is located on the side of the unlocking lever 1 facing away from the driving unit 3. The limiting portion 45 is capable of limiting the movement of the driving unit 3 in the first direction L1. The presence of the limiting portion 45 constrains and restricts the driving unit 3 during the unlocking process, preventing excessive movement of the driving unit 3 in the first direction L1, ensuring that the range of movement of the unlocking lever 1 is within a reasonable range, and preventing the driving unit 3 from colliding or interfering with other components during the unlocking process, thereby reducing potential damage risks and preventing accidental damage or safety issues caused by excessive extension and contraction of the unlocking lever 1. Specifically, the limiting portion 45 is fixed to the first housing 41 and can be a limiting bolt, a limiting pin, or a limiting block. For example, in this embodiment, a limiting bolt is used. The limiting bolt is disposed in the direction of movement of the driving unit 3. When the driving unit 3 moves to a predetermined position, the limiting bolt contacts the driving unit 3 and prevents it from further movement, thereby achieving a limiting position to prevent excessive movement of the driving unit 3. Specifically, as shown in Figure 29, the unlocking component 10 also includes a mounting plate 46 for assembly with the battery exchange device 100. The mounting plate 46 is fixed on the second shell to facilitate the installation and disassembly of the unlocking component 10. The introduction of the mounting plate 46 provides more stable support and fixation for the unlocking component 10, ensuring that the unlocking component 10 can be stably installed on the battery exchange device 100.

[0171] As shown in Figures 35 and 36, the unlocking lever 1 includes a fixed portion 11 and a telescopic portion 12. The fixed portion 11 is connected to the connecting portion 2, and the telescopic portion 12 can be telescoped relative to the fixed portion 11 and used for unlocking. When the unlocking lever 1 is subjected to a large external force or resistance during the unlocking process, the design of the telescopic portion 12 allows it to telescope relative to the fixed portion 11, that is, allowing the unlocking lever 1 to have a certain degree of "elasticity" during movement, thereby slowing down the movement speed and reducing the impact force of the movement. This can prevent the unlocking lever 1 from colliding with the locking mechanism due to excessive movement, thereby reducing the potential risk of damage. Through this telescopic design, the unlocking assembly 10 can better adapt to various movement conditions during the unlocking process, providing a certain degree of "buffering" effect, and increasing the safety and stability of the unlocking process. In addition, the design of the telescopic portion 12 also helps to improve the durability of the unlocking assembly 10. It can absorb a certain degree of impact and vibration, reducing the impact load on the unlocking assembly 10, thereby extending its service life.

[0172] As shown in Figures 35 and 36, the fixed portion 11 includes a housing cavity 111, and the telescopic portion 12 and the fixed portion 11 are nested in the housing cavity 111. The unlocking lever 1 also includes an elastic element 13 located between the telescopic portion 12 and the fixed portion 11. The elastic element 13 is used to apply a force in the extension direction to the telescopic portion 12. The presence of the elastic element 13 enables the telescopic portion 12 to produce elastic deformation when subjected to external forces, and can buffer the impact and vibration generated during the unlocking process, thereby reducing the impact force during movement and protecting the unlocking assembly 10 and other structures. Since the telescopic portion 12 is subjected to the force of the elastic element 13, it can expand and contract accordingly according to changes in external conditions, so that the unlocking assembly 10 can adaptively perform unlocking operations under different conditions, thereby improving the reliability and stability of unlocking. In addition, the design of the housing cavity 111 enables the telescopic portion 12 to be nested in the fixed portion 11, thereby making the entire unlocking lever 1 compact and occupying less space. Specifically, in this embodiment, the telescopic portion 12 is connected to the fixed portion 11 by a mechanical spring. The compression and release of the spring can cause the telescopic portion 12 to expand and contract relative to the fixed portion 11. By selecting the appropriate spring type and spring preload, different expansion and contraction lengths and unlocking forces can be achieved. Of course, in other alternative embodiments, a pneumatic expansion mechanism, such as a nitrogen spring, can also be used. That is, the telescopic portion 12 and the fixed portion 11 are sealed and filled with nitrogen, and elastic deformation is generated by the pressure of the gas. When external pressure or load is applied to the nitrogen spring, the nitrogen will be compressed and generate a corresponding reaction force. When the external pressure or load is reduced, the nitrogen will expand again.

[0173] As shown in Figures 35 and 36, the fixed part 11 includes a first end 112 and a second end 113 relative to each other, the telescopic part 12 includes an unlocking end 121 extending from the first end 112 and a connecting rod 122 located in the accommodating cavity 111, the elastic element 13 is sleeved on the connecting rod 122 and is compressed between the unlocking end 121 and the second end 113 of the fixed part 11, the second end 113 has an opening connected to the accommodating cavity 111, the unlocking rod 1 also includes an adjusting part 14, the adjusting part 14 is located at the opening and is connected to the telescopic part 12, the adjusting part 14 is used to limit the telescopic part 12 on the fixed part 11, and can adjust the length of the telescopic part 12 extending relative to the fixed part 11. The elastic element 13 is sleeved on the connecting rod 122 and is compressed between the unlocking end 121 and the second end 113, so that the elastic force can be better transmitted and hard limitation between the unlocking rod and the locking mechanism can be effectively prevented. The adjusting part 14 is arranged at the opening and connected to the telescopic part 12, and limits the telescopic part 12 on the fixed part 11, thereby ensuring that the telescopic part 12 will not separate from the fixed part 11 during the unlocking process and can maintain a stable connection state; in addition, by adjusting the extended length of the telescopic part 12 by the adjusting part 14, the length of the unlocking rod 1 can be adjusted according to specific needs to adapt to the characteristics of different locking mechanisms and different unlocking requirements, thereby improving the flexibility and reliability of the unlocking process of electric vehicles and other battery-powered equipment. Specifically, in this embodiment, the adjustment portion 14 is fixedly connected to the telescopic portion 12, and the connecting rod 122 of the telescopic portion 12 extends out of the second end 113. The adjustment portion 14 is designed to accommodate a gasket 15. The gasket 15 is mounted on the end of the connecting rod 122 extending out of the second end 113. By adjusting the thickness of the gasket 15, the extension length of the telescopic portion 12 relative to the fixed portion 11 is controlled. The gasket 15 can be a thin sheet made of different materials, such as metal or plastic. By adding or removing the gasket 15, the extension length of the telescopic portion 12 can be adjusted, thereby achieving the extension range of the unlocking lever 1. Of course, in other alternative embodiments, the adjustment portion 14 can be threadedly connected to the telescopic portion 12, and the telescopic portion 12 can be extended or retracted relative to the fixed portion 11 by rotating the adjustment portion 14, thereby adjusting the extension length of the telescopic portion 12. Furthermore, a through hole corresponding to the adjustment portion can be provided in the bottom of the first housing, so that the adjustment portion 14 can be directly adjusted through the through hole to achieve adjustment of the telescopic portion 12.

[0174] Although the above describes specific embodiments of the present invention, it should be understood by those skilled in the art that these are merely illustrative and that various changes or modifications may be made to these embodiments without departing from the principles and essence of the present invention. Therefore, the scope of protection of the present invention is defined by the appended claims.

Claims

1. An unlocking device, used to unlock a locking mechanism for locking a battery pack, characterized in that: The unlocking device includes a moving mechanism, an unlocking mechanism and a conversion mechanism. The moving mechanism is connected to the unlocking mechanism through the conversion mechanism. The moving mechanism can move along a first direction and drive the conversion mechanism to move relative to the moving mechanism, so that the unlocking mechanism moves along a second direction perpendicular to the first direction, so that the unlocking mechanism is unlocked.

2. The unlocking device according to claim 1, characterized in that: The two ends of the conversion mechanism are rotatably connected between the moving mechanism and the unlocking mechanism. The moving mechanism can move back and forth along a first direction and drive the conversion mechanism to rotate a preset angle relative to the moving mechanism, so that the unlocking mechanism moves a preset distance along a second direction perpendicular to the first direction, so that the unlocking mechanism cooperates with the locking mechanism and unlocks.

3. The unlocking device according to claim 2, characterized in that: One end of the conversion mechanism connected to the unlocking mechanism is restricted to be movable only along the second direction, the conversion mechanism is pivotally connected to the moving mechanism, and the conversion mechanism and the moving mechanism are arranged at an angle.

4. The unlocking device according to claim 3, characterized in that: The conversion mechanism includes a connecting member and a conversion member, two ends of the conversion member are pivotally connected to the moving mechanism and the connecting member respectively, the connecting member is used to install the unlocking mechanism, and the conversion member is arranged at an angle to the moving mechanism; wherein the conversion member and the connecting member are pivotally connected via a pivot axis, and the unlocking mechanism at least partially overlaps with the projection of the pivot axis in the second direction.

5. The unlocking device according to claim 4, characterized in that: The unlocking device further comprises a shell and a guide block, wherein a receiving chamber is provided in the shell, wherein the moving mechanism and the conversion mechanism are provided in the receiving chamber, wherein the guide block is provided in the receiving chamber and at least a part of the receiving chamber serves as a slide groove of the guide block, so that the guide block moves in the slide groove to drive the moving mechanism connected to the guide block to move along the first direction; Preferably, at least two side walls of the accommodating cavity located on both sides of the first direction are provided with guide surfaces to form the slide groove to cooperate with the guide block, and the friction coefficient of the guide surface is lower than the friction coefficient of other wall surfaces of the accommodating cavity; Further preferably, the conversion mechanism further includes a limiting member, the limiting member includes a limiting groove opened on the side wall, the limiting groove is slidably connected to the pivot shaft, and the limiting groove extends along the second direction.

6. The unlocking device according to claim 5, characterized in that: The conversion mechanism further includes a limiting member, the limiting member includes a limiting surface, the limiting surface is provided on the guide block, and the limiting surface at least covers a projection area of ​​the connecting member on the guide block along the second direction, and the limiting surface is used to abut against a surface of the connecting member away from the locking mechanism; And / or, the moving mechanism comprises an end plate and a connecting rod, two ends of the connecting rod are respectively connected to the end plate and the conversion mechanism, and the guide block is arranged on the connecting rod and located between the end plate and the conversion mechanism, so that the end plate can drive the connecting rod to move along the first direction; Preferably, the unlocking device further comprises a driving mechanism, wherein the driving mechanism is attached to the outer side wall of the shell, the driving mechanism is connected to the end plate of the moving mechanism, and moves in the same direction as the moving mechanism.

7. The unlocking device according to any one of claims 2 to 6, characterized in that: The unlocking mechanism includes a body and a rod. A sliding cavity with an opening is provided in the body. One end of the rod extends into the sliding cavity from the opening and is retractable relative to the body. The retractable direction is the second direction. One end of the body away from the rod is connected to the conversion mechanism.

8. The unlocking device according to claim 1, characterized in that: The conversion mechanism includes a first conversion member and a second conversion member, the first end of the first conversion member and the third end of the second conversion member are arranged at an angle and are both rotatably connected to the moving mechanism, the second end of the first conversion member is connected to the unlocking mechanism, and the fourth end of the second conversion member is arranged as a free end, the moving mechanism can reciprocate along the first direction and drive the first conversion member and the second conversion member to rotate relative to the moving mechanism so that the second end and the fourth end move in opposite directions along the second direction perpendicular to the first direction, and then the unlocking mechanism moves a preset distance along the second direction to cooperate with the unlocking mechanism and unlock.

9. The unlocking device according to claim 8, characterized in that: The unlocking device also includes a shell, which includes two side plates located on both sides of the conversion mechanism along the first direction, and at least one of the side plates is provided with a first slide groove and a second slide groove extending along the second direction respectively, the second end of the first conversion member cooperates with the first slide groove, and the fourth end of the second conversion member cooperates with the second slide groove, so that when the first conversion member and the second conversion member rotate relative to the moving mechanism, the second end and the fourth end respectively move in opposite directions along the first slide groove and the second slide groove.

10. The unlocking device according to claim 9, characterized in that: At least one of the side plates is further provided with a third slide groove extending along the first direction, and the first end of the first conversion member and the third end of the second conversion member are both matched with the third slide groove, so that the moving mechanism drives the first end and the third end to move along the first direction while the second end and the fourth end move in the opposite direction; Preferably, the number of the first conversion member and the number of the second conversion member are both two, the two second ends are connected to the two sides of the unlocking mechanism through the first connecting shaft, the two fourth ends are matched with the second sliding groove through the second connecting shaft, and the two first ends and the two third ends are connected to the two sides of the moving mechanism through the third connecting shaft; Further preferably, the number of the first chute and the number of the second chute are both two, which are respectively located at corresponding positions of the two side plates, and first rolling elements are provided at both ends of the first connecting shaft, and the rolling surface of the first rolling element is in one-to-one correspondence with the groove wall of the first chute; And / or, the two second connecting shafts are both connected with a second rolling element, and the rolling surfaces of the second rolling elements are in one-to-one correspondence with the groove walls of the second sliding grooves; And / or, the number of the third sliding grooves is two, which are respectively located at corresponding positions of the two side panels, and the two third sliding grooves are respectively adapted to the two ends of the third connecting shaft.

11. The unlocking device according to claim 10, characterized in that: The axes of the first slide groove and the second slide groove in the second direction coincide and penetrate each other, and the third slide groove is respectively connected with the first slide groove and the second slide groove; when the second end moves to the uppermost limit point of the first slide groove, the unlocking mechanism moves to the unlocking position of the unlocking mechanism; when the first end and the third end move to the initial limit point of the third slide groove, the unlocking mechanism moves to the initial position.

12. The unlocking device according to any one of claims 9 to 11, characterized in that: The housing further comprises a top plate, the two ends of the top plate are respectively connected to at least part of the two side plates, a sliding sleeve is provided on the top plate, a connecting hole is provided in the sliding sleeve, the axis of the connecting hole coincides with the axis of the unlocking mechanism, and the connecting hole is used for sliding connection with the unlocking mechanism; Preferably, the housing further comprises a bottom plate, the bottom plate is arranged opposite to the top plate, and the two ends of the bottom plate are respectively connected to the two side plates. At least parts of the plates are connected to enclose a receiving cavity for receiving the moving mechanism and the conversion mechanism; And / or, the unlocking device further comprises a driving mechanism, the driving mechanism is connected to the moving mechanism, and the driving mechanism is located at an end of the moving mechanism away from the conversion mechanism along the first direction; Preferably, the shell also includes a vertical plate located on the side of the moving mechanism close to the driving mechanism, and the two sides of the vertical plate are respectively connected to the two side plates. A through hole and an opening are provided on the vertical plate, and the push rod of the driving mechanism is connected to the moving mechanism after passing through the through hole. The opening extends from the top or bottom of the vertical plate to the through hole and is connected to the through hole.

13. The unlocking device according to any one of claims 8 to 12, characterized in that: The unlocking mechanism comprises a mounting member and an unlocking member, wherein the mounting member is used to mount the unlocking member, and the mounting member is connected to the second end; The unlocking member includes a main body and a rod body, a sliding cavity with an installation opening is opened in the main body, one end of the rod body extends into the sliding cavity from the installation opening and can slide relative to the sliding cavity, and the sliding direction is the second direction; one end of the main body away from the rod body is fixed on the installation member.

14. The unlocking device according to claim 1, characterized in that: The unlocking device is configured as an unlocking assembly, the unlocking mechanism includes an unlocking rod, the moving mechanism includes an active part, the conversion mechanism includes a follower, the unlocking assembly includes a main body, and the unlocking rod installed on the main body, the unlocking rod is used to unlock the locking mechanism that locks the battery pack, and the unlocking assembly also includes: The follower is arranged on the unlocking rod, and the unlocking rod is arranged to be telescopically movable only along the second direction; The active part is provided with a matching piece that cooperates with the follower, and the active part is configured to be able to move along a first direction perpendicular to the second direction. The matching piece is obliquely arranged and forms an angle with the first direction. The movement of the active part along the first direction can drive the follower to move relative to the matching piece to drive the unlocking rod to move along the second direction.

15. The unlocking assembly according to claim 14, characterized in that: The unlocking assembly also includes a guide rail extending along the second direction and a guide block cooperating with the guide rail, wherein the guide rail is fixed on the main body, the guide block is connected to the unlocking rod, and the guide block can move along the extension direction of the guide rail to drive the unlocking rod to move along the second direction.

16. The unlocking assembly according to claim 15, characterized in that: One end of the unlocking rod is located in the main body, and the other end of the unlocking rod extends out of the main body. The follower is arranged on the end of the unlocking rod located in the main body.

17. The unlocking assembly according to claim 16, characterized in that: The unlocking assembly further includes a connecting plate, which is disposed in the main body and fixed to the unlocking rod, wherein a side of the connecting plate facing the active part is connected to the follower, and a side of the connecting plate facing away from the active part is connected to the guide block; Preferably, the follower comprises a fixed shaft fixed on the unlocking rod and a rolling member rotatably arranged on the fixed shaft, the matching member is a slide groove, and the rolling surface of the rolling member fits with the slide groove; Further preferably, the unlocking assembly further comprises a first sensing unit and a second sensing unit, wherein the first sensing unit and the second sensing unit correspond to the lowest point and the highest point of the travel of the unlocking rod in the second direction respectively, so as to control the active part to stop moving after the unlocking rod reaches the corresponding position; More preferably, the first sensing unit and the second sensing unit are arranged toward the slide groove and on a path where the slide groove moves along with the active part, and the detection object of the first sensing unit and the second sensing unit is the rolling element.

18. The unlocking assembly according to claim 17, characterized in that: The main body comprises a top plate, a shaft sleeve is installed on the top plate, the unlocking rod is installed in the shaft sleeve and one end of the unlocking rod extends out of the shaft sleeve and can be telescopically moved in a first direction relative to the shaft sleeve.

19. The unlocking assembly according to claim 18, characterized in that: The main body also includes a side plate, which is connected to the top plate and arranged opposite to the active part; the guide rails and the guide blocks are at least two groups, wherein the two guide rails are respectively fixed to the side plates and arranged in parallel on both sides of the unlocking rod; the two guide blocks are arranged corresponding to the two guide rails and are respectively connected to the connecting plate.

20. The unlocking assembly according to any one of claims 14 to 19, characterized in that: The unlocking lever comprises a fixed part and a telescopic part, wherein the fixed part is mounted on the main body, and the telescopic part can be telescoped relative to the fixed part and is used for unlocking.

21. The unlocking device according to claim 1, characterized in that: The unlocking device is configured as an unlocking assembly, the unlocking mechanism includes an unlocking rod, the moving mechanism includes a driving part, the conversion mechanism includes a connecting part, the unlocking assembly includes the unlocking rod for unlocking the locking mechanism for locking the battery pack, and the unlocking assembly also includes: The connecting part and the driving part, one end of the connecting part is rotatably connected to the unlocking rod by at least one side of the unlocking rod, and the other end of the connecting part is rotatably connected to the driving part by at least one side of the driving part, and the driving part moves along a first direction to drive the connecting part to rotate relative to the driving part, so that the unlocking rod moves a preset distance along a second direction perpendicular to the first direction to cooperate with the locking mechanism and unlock.

22. The unlocking assembly according to claim 21, characterized in that One end of the connecting portion connected to the unlocking lever is configured to be movable only along the second direction.

23. The unlocking assembly according to claim 21 or 22, characterized in that: The unlocking assembly also includes a first shell and a second shell, both of which are hollow. Along the second direction, the second shell is located above the first shell and are connected to each other. The driving part is at least partially located in the first shell, and the unlocking rod is at least partially located in the second shell. The connecting part respectively connects the end of the driving part located in the first shell and the end of the unlocking rod located in the second shell.

24. The unlocking assembly according to claim 23, characterized in that The two sides of the driving part are connected to the connecting part through a first rotating shaft, and the two sides of the unlocking lever are connected to the connecting part through a second rotating shaft; First limiting grooves extending along the first direction are provided on two opposite side walls of the first housing facing the first rotating shaft, and a first rolling element cooperating with the first limiting grooves is provided on the first rotating shaft to guide the driving part to move in the first direction; And / or, second limiting grooves extending along the second direction are provided on two opposite side walls of the second housing facing the second rotating shaft, and a second rolling element cooperating with the second limiting grooves is provided on the second rotating shaft to guide the unlocking rod to move in the second direction; Preferably, the unlocking assembly further comprises a first sensing unit and a second sensing unit spaced apart along the second direction, wherein the first sensing unit and the second sensing unit correspond to the lowest point and the highest point of the travel of the unlocking rod in the second direction, respectively, so as to control the driving part to stop moving after the unlocking rod reaches the corresponding position; And / or, the unlocking assembly further comprises a third sensing unit and a fourth sensing unit spaced apart along the first direction, the third sensing unit and the fourth sensing unit respectively corresponding to the original point and the arrival point of the travel of the driving part in the first direction, so as to control the driving part to stop moving after the driving part extends to the designated distance; Further preferably, the first sensing unit and the second sensing unit are arranged corresponding to the second limiting groove, and the detection object of the first sensing unit and the second sensing unit is the second rolling element; And / or, the third sensing unit and the fourth sensing unit are arranged corresponding to the first limiting groove, and the detection object of the third sensing unit and the fourth sensing unit is the first rolling element.

25. The unlocking assembly according to any one of claims 23 or 24, characterized in that: A shaft sleeve is installed on the top of the second housing, and the unlocking rod is installed in the shaft sleeve and one end of the unlocking rod extends out of the shaft sleeve and can be telescopically moved in a second direction relative to the shaft sleeve; Preferably, the unlocking assembly further comprises a limiting portion, which is arranged opposite to the driving portion and located at a side of the unlocking rod away from the driving portion, and the limiting portion can limit the movement of the driving portion in the first direction; And / or, the unlocking rod includes a fixed part and a telescopic part, the fixed part is connected to the connecting part, the telescopic part can be telescoped relative to the fixed part and is used for unlocking, the fixed part includes an accommodating cavity, the telescopic part and the fixed part are nested through the accommodating cavity, and the unlocking rod also includes an elastic element located between the telescopic part and the fixed part, and the elastic element is used to apply a force to the telescopic part along the extending direction.

26. The unlocking assembly according to claim 25, characterized in that The fixed part includes a first end and a second end opposite to each other, the telescopic part includes an unlocking end extending from the first end and a connecting rod located in the accommodating cavity, the elastic element is sleeved on the connecting rod and is compressed between the unlocking end and the second end, the second end has an opening connected to the accommodating cavity, the unlocking rod also includes an adjusting part, the adjusting part is located at the opening and connected to the telescopic part, the adjusting part is used to limit the telescopic part on the fixed part, and can adjust the length of the telescopic part extending relative to the fixed part.

27. A battery replacement device, characterized in that: It includes an unlocking component as described in any one of claims 14-26, and the battery swapping equipment is used to unlock the locking mechanism on the battery swapping vehicle to release the locking mechanism from locking the battery pack on the battery swapping vehicle.

28. A battery-swapping vehicle, characterized in that: The battery-swapping vehicle comprises an unlocking device as described in any one of claims 1-13.

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