Unlocking device, battery changing device and battery pack

Abstract

A release device for locking and unlocking a battery pack in an electric vehicle, characterized in that it comprises the following: a release lever, a release guide block and a drive mechanism, wherein the drive mechanism is connected to the release guide block and drives the release guide block to horizontal movement; wherein the release guide block is provided with a release guide groove, wherein the release guide groove guides the release lever to move up and down, so that the release lever pushes the locking and unlocking structure of the electric vehicle and battery pack to perform the locking and unlocking.

Description

[0001] This application claims priority from Chinese patent application CN2022207940427, filed on April 2, 2022, and Chinese patent application CN2022103513259, filed on April 2, 2022. This application cites the full text of the above-mentioned Chinese patent application. Technical area

[0002] The present invention relates to the technical field of battery replacement and in particular to an unlocking device, a battery changing device and a battery pack. State of the art

[0003] Existing battery pack installation methods for electric vehicles are generally divided into fixed types and removable types. Fixed battery packs are generally attached to the vehicle, and the vehicle is directly used as the charging object during charging. Removable battery packs generally use a movable installation method, and the battery pack can be removed and replaced with a new one at any time.

[0004] However, for large vehicles such as heavy trucks or light trucks, the weight of the vehicle body and cargo is very large, which leads to high capacity requirements for battery packs in large vehicles. The electric energy must be large enough to support large vehicles traveling hundreds of kilometers. When replacing a new battery pack, one must use battery swapping equipment to unlock and replace the battery pack. However, the battery packs of large vehicles are comparatively larger, the chassis of electric vehicles is lower, and the space under the vehicle, especially the upper and lower space, is insufficient. It is difficult for general energy exchange equipment to penetrate the bottom of the vehicle and use the unlocking lever to unlock the battery pack. An unlocking lever that can move up and down is required.It is difficult to ensure that the release lever engages and unlocks. Content of the invention

[0005] The technical problem to be solved by the present invention is to provide an unlocking device, a battery changing device and a battery pack to overcome the deficiency in the prior art, wherein in the prior art, it is difficult for the unlocking device to lock and unlock a battery pack in a narrow space under the chassis of an electric vehicle.

[0006] The present invention solves the above-mentioned technical problems by the following technical solutions: An unlocking device for locking and unlocking a battery pack in an electric vehicle, characterized in that the unlocking device comprises an unlocking lever, an unlocking guide block, and a drive mechanism, wherein the drive mechanism is connected to the unlocking guide block and drives the unlocking guide block for horizontal movement; wherein the unlocking guide block is provided with an unlocking guide groove, the unlocking guide groove guides the unlocking lever for up and down movement to realize that the unlocking lever presses the locking and unlocking structure of the electric vehicle and the battery pack for locking and unlocking.

[0007] This solution adopts the above structural form. The unlocking device converts the horizontal movement of the drive mechanism into the up-and-down movement of the unlocking lever using the unlocking guide block, thereby reducing the height of the unlocking device and facilitating unlocking in the narrow space under the vehicle. At the same time, the unlocking device has a compact design, facilitating unlocking of various vehicle models.

[0008] Preferably, the release lever is provided with a laterally extending cam portion, and the release guide groove drives the cam portion of the release lever for up and down movement to enable the release lever to unlock a battery pack on an electric vehicle.

[0009] This solution adopts the above structural form. The drive mechanism has a split design, and the drive mechanism drives the movement of the release element through the release guide block. The split design reduces the accuracy requirements for the installation position between the drive mechanism and the release element, thus reducing production costs.

[0010] Preferably, the unlocking device further comprises a horizontal guide mechanism and the drive mechanism is provided at one end of the unlocking guide block, wherein the drive mechanism drives the unlocking guide block for horizontal movement in the horizontal guide mechanism to enable up and down movement of the unlocking lever along the unlocking guide groove.

[0011] This solution adopts the above structural form. The horizontal guide mechanism guides and limits the horizontal movement of the release guide block and ensures stable up and down movement of the release lever along the release guide groove to enable unlocking, thus saving space in the vertical direction.

[0012] Preferably, the release lever is installed with left and right limits relative to the horizontal movement direction, and the release guide groove is a diagonal guide groove that guides the release lever to extend from the lowest position to the highest position, the diagonal guide groove being provided on the side wall of the release guide block parallel to its movement direction.

[0013] Preferably, the unlocking guide groove comprises: a first guide part, wherein the extending direction of the first guide part coincides with the moving direction of the unlocking guide block; a second guide part, wherein the second guide part is parallel to the first guide part and located at the lower end of the first guide part; and a third guide part, wherein one end of the third guide part is connected to an end of the first guide groove near the third guide part in a downwardly inclined manner, and the other end of the third guide part is connected to an end of the second guide part near the third guide part.

[0014] This solution adopts the above structural form, and the release guide groove comprises a first guide part in the same movement direction as the release guide block and a second guide part running parallel to the first guide part and located at the lower end of the first guide part. The first guide part and the second guide part ensure that the release guide block can move horizontally and provide horizontal support for the convex part of the release lever. It also includes a third guide part, which is connected to the second guide part at an angle downward from the first guide part and ensures that the convex part of the release lever can move up and down.

[0015] Preferably, the unlocking device further comprises a vertical guide groove, wherein the highest point of the vertical guide groove is higher than or equal to the top of the first guide part and the lowest point of the vertical guide groove is lower than or equal to the lower end of the second guide part; when the unlocking lever is in the highest position, the end of the first guide part remote from the third guide part corresponds to the left side of the vertical guide groove, or the end of the first guide part remote from the third guide part is located on the left side of the vertical guide groove. When the unlocking lever is in the lowest position, the end of the second guide part remote from the third guide part corresponds to the right side of the vertical guide groove, or the end of the second guide part remote from the third guide part is located on the right side of the vertical guide groove.

[0016] This solution adopts the above-mentioned structural form and provides a vertical guide mechanism for guiding the release lever, thereby ensuring that the release lever moves up and down in a predetermined direction and avoiding tilting to the left and right, which is advantageous for aligning the release position and quickly recognizing the release.

[0017] Preferably, the unlocking guide groove further comprises: a first chamfer, the first chamfer being provided at the junction between the first guide part and the third guide part; and a second chamfer, the second chamfer being provided at the junction between the second guide part and the third guide part.

[0018] In this solution, the above structural form is adopted, and the chamfer provided at the corner of the Z-shaped release guide groove can reduce the friction of the cam part of the release lever when it moves in the horizontal guide groove, prevent jamming, and ensure smooth movement.

[0019] Preferably, the release lever comprises a cam part and a lever body part, wherein the cam part extends from the outer peripheral surface of the lever body part into the release guide groove along the radial direction of the lever body part, and the release guide groove guides the lever body part through the cam part for up and down movement in the release guide block.

[0020] This solution adopts the above structural form and provides a cam portion on the outer peripheral surface of the lever body portion. The drive mechanism can drive the lever body portion through the cam portion to move up and down to unlock the battery pack. This structure makes the arrangement of the drive mechanism more flexible, and the extension length of the lever body portion can be flexibly designed and adjusted according to the connection position of the cam portion to the lever body portion, contributing to a more compact design of the unlocking device.

[0021] Preferably, the release guide block is provided with an upwardly and downwardly extending cavity, and the release guide grooves of the same shape are provided on both side walls of the cavity. Two cam members are provided, respectively arranged on both sides of the lever body member. The cam members on both sides are arranged in the release guide grooves.

[0022] In this solution, the above structural form is adopted, and the unlocking guide groove in the cavity is designed symmetrically, so that when the unlocking guide groove acts on the unlocking element, the force is more balanced and the movement is more smooth.

[0023] Preferably, the release lever comprises a cam part, a through hole is provided on the lever body part, the cam part penetrates the through hole and the cam parts are each formed on both sides of the lever body part.

[0024] In this solution, the above structural form is adopted, and the lever body part and the cam part are detachable structures, which facilitates the disassembly and installation of the unlocking parts and the replacement of parts.

[0025] Preferably, the lever body part comprises a first lever body and a second lever body, wherein the second lever body is connected to the cam part and the first lever body is provided at one end of the second lever body near the battery pack. The end of the first lever body remote from the second lever body has an arcuate surface.

[0026] In this solution, the above structural shape is adopted, and one end of the unlocking member extending into the battery pack is arranged in an arc shape, which is advantageous for preventing damage to the battery pack when the unlocking member is inserted into the battery pack to trigger the unlocking connection, and which contributes to protecting the internal structure of the battery pack.

[0027] Preferably, the first lever body has a conical structure.

[0028] This solution adopts the above structural form. The tapered structural design at the end of the first lever body facilitates the insertion of the release element into the battery pack and allows for a certain misalignment error, thereby increasing the accuracy of inserting the release element into the battery pack.

[0029] Preferably, the outer surface of the lever body part is provided with an anti-rotation surface to prevent the lever body part from rotating in the release guide block.

[0030] In this solution, the above structural form is adopted and the outer side of the lever body part is provided with an anti-rotation surface, which helps to prevent rotation of the lever body part when the drive mechanism drives the unlocking element to move up and down.

[0031] Preferably, the unlocking device further comprises a detecting element, wherein the detecting element is provided on the unlocking guide block and is used to detect the raising and lowering of the unlocking lever; and / or wherein the detecting element is used to detect the horizontal movement of the unlocking guide block.

[0032] This solution adopts the above structural form, and the first detection element detects the drive mechanism to ensure that the drive structure can be driven in place. The second detection element is used to detect the unlocking lever to ensure that the unlocking lever can move and unlock normally after the drive mechanism moves. The battery pack can only be unlocked when the unlocking lever moves to the second setting position. The second detection element detects whether the unlocking lever moves to the setting position to ensure normal unlocking.

[0033] Preferably, the detection element comprises: a first detection element, the first detection element being used to detect whether the release guide block moves to the first set position; and a second detection element, the second detection element being used to detect whether the release lever moves upward to the second set position.

[0034] In this solution, the above structural form is adopted, and the drive mechanism drives the unlocking lever to move to unlock the battery pack. The first detecting element detects the drive mechanism to ensure that the drive structure can be driven in place. The second detecting element is used to detect the unlocking lever to ensure that the unlocking lever can move and unlock normally after the drive mechanism moves. The battery pack can only be unlocked when the unlocking lever moves to the second setting position. The second detecting element detects whether the unlocking lever moves to the setting position to ensure normal execution of the unlocking work.

[0035] Preferably, the detecting element further comprises a third detecting element, the third detecting element detecting that the unlocking guide block moves in a direction close to the drive mechanism to the third setting position and is used to control the disengagement of the drive mechanism.

[0036] This solution adopts the above structural form. The third detection element helps ensure that the release guide block does not retract excessively, contributing to protecting the structure of the release lever lifting detection device and extending its service life.

[0037] Preferably, the unlocking device comprises a fastening component, and the first sensing element and the second sensing element are both fixedly installed on the fastening component.

[0038] This solution adopts the above structural form. The fixing component can enable the fixed installation of the sensing element, and the fixing component can ensure the installation stability of the sensing element, which helps ensure the sensing accuracy of the sensing element.

[0039] Preferably, the fastening component comprises a mounting body and at least one adjusting body, wherein the first detection element and / or the second detection element are connected to the adjusting body and the adjusting body is movably connected to the installation plate.

[0040] This solution adopts the above structural form, and the fastening component has a split design. The fastening component includes a plate-shaped mounting body that is vertically fixed parallel to the release guide block. The first detection element, the second detection element, and the third detection element are each movably installed on the mounting body via the adjustment body. Using the adjustment body can facilitate the adjustment of the installation position of the detection element and, at the same time, facilitate the disassembly and assembly of the detection element.

[0041] Preferably, the adjusting body is provided with an adjusting groove, wherein the first detecting element can adjust the installation position along the drive direction of the drive mechanism through the adjusting groove and the second detecting element can adjust the installation position along the unlocking direction of the unlocking lever through the adjusting groove.

[0042] This solution adopts the above structural form, and the adjustment body adjusts the installation position of the sensing element through the adjustment groove, which helps ensure the sensing accuracy of each sensing element. At the same time, the adjustment direction of the corresponding adjustment groove of the first sensing element and the second sensing element is related to the movement direction of the corresponding moving component, facilitating fine adjustment of the sensing element.

[0043] Preferably, the fastening component is provided with a detection opening, wherein the detection opening releases the detection position on the side of the release lever.

[0044] This solution adopts the above structural form and provides the fastening component with a detection hole. The detection position of the release lever corresponds to the detection hole, and the detection element can detect the up and down movement of the release lever through the detection hole.

[0045] Preferably, a second detection element is installed at the detection opening and a detection surface is provided at an end of the release lever facing the second detection element.

[0046] In this solution, the above structural form is adopted, and the design of the detection surface contributes to detecting the position of the cam part so as to determine the moving position of the lever body part.

[0047] Preferably, the detection element is a proximity switch.

[0048] In this solution, the above structural form is adopted, and the first detecting element and the third detecting element play a role in limiting the limit stroke of the left and right movement of the unlocking guide block to ensure accurate execution of the unlocking work and protect the unlocking device.

[0049] Preferably, the unlocking device further comprises a horizontal guide mechanism, wherein the drive mechanism drives the unlocking guide block for horizontal movement in the horizontal guide mechanism to enable the lifting and lowering movement of the unlocking lever along the unlocking guide groove.

[0050] This solution adopts the above structural form. The horizontal guide mechanism guides and limits the horizontal movement of the release guide block and ensures stable up and down movement of the release lever along the release guide groove to enable unlocking, thus saving space in the vertical direction.

[0051] Preferably, the horizontal guide mechanism comprises a horizontal guide frame, wherein a horizontal guide groove is provided in the horizontal guide frame, wherein the horizontal guide groove is used to guide the horizontal movement of the release guide block.

[0052] This solution adopts the above structural form. The horizontal guide mechanism guides and limits the horizontal movement of the release guide block, ensuring stable up-and-down movement of the release lever along the release guide groove to enable unlocking, thus saving space in the vertical direction.

[0053] Preferably, the unlocking device further comprises a vertical guide mechanism fixedly arranged on the horizontal guide mechanism, wherein the unlocking lever can move up and down by the vertical guide mechanism.

[0054] In this solution, the above-mentioned structural form is adopted and a vertical guide mechanism for guiding the release lever is provided, thereby ensuring that the release lever moves up and down in a predetermined direction and avoiding tilting to the left and right, which is advantageous for aligning the release position and quickly recognizing the release.

[0055] Preferably, a slot is provided at one end of the release guide block near the drive mechanism, the drive mechanism comprising a push output end and a connecting block attached to the push output end, the connecting block being embedded in the slot.

[0056] This solution adopts the above structural form and the design of the slot facilitates the connection between the drive mechanism and the release guide block.

[0057] Preferably, the release lever is a torque release lever, wherein the torque release lever exerts a torque to cooperate with the locking and unlocking mechanism to enable unlocking.

[0058] In this solution, the release lever adopts such a structure and release form, making it suitable for a variety of release environments.

[0059] A battery changing device for replacing the battery pack on the electric vehicle, characterized in that the battery changing device comprises the above-mentioned unlocking device.

[0060] Preferably, the battery changing device further comprises a battery tray, the battery tray being provided with a stadium-shaped hole, and the battery tray being used to support the battery pack; the unlocking device being provided below the battery tray, and the unlocking device being used to unlock the battery pack through the stadium-shaped hole.

[0061] This solution adopts the above structural shape and provides an escape groove to prevent the upper battery pack mounting plate from blocking the release element and interfering with its operation. The stadium-shaped hole is designed to facilitate the insertion of the lever body part.

[0062] Preferably, the battery changing device further comprises a mounting component, wherein the mounting component is provided below the battery plate and the unlocking device is provided on the mounting component.

[0063] This solution adopts the above structural form, providing a mounting component below the battery tray, and installing the release device on the mounting component. The release lever of the release device moves upward and can be guided through the stadium-shaped hole on the battery tray.

[0064] Preferably, the mounting component comprises: a body mounting plate, wherein the body mounting plate is for connecting and fixing to the vehicle body of the electric vehicle, and a battery pack mounting plate, wherein the battery pack mounting plate is for connecting and fixing to the battery pack, wherein the release device is installed on the body mounting plate or the battery pack mounting plate.

[0065] This solution adopts the above structural form, and the body fixing plate can prevent relative movement between the body and the battery change shuttle, thereby helping the battery change shuttle to smoothly lock and unlock the battery pack; the battery pack fixing plate can prevent relative movement between the battery change shuttle and the battery pack, thereby contributing to the locking and unlocking of the battery pack.

[0066] Preferably, the battery pack mounting plate is provided above the body mounting plate. The release device is mounted on the body mounting plate. An escape groove is provided at one end of the battery pack mounting plate near the release device. The release device extends through the escape groove and is attached to the body mounting plate.

[0067] This solution adopts the above-mentioned structural form and provides the escape groove to prevent the upper battery pack fixing plate from blocking the release lever and affecting the function of the release lever.

[0068] Preferably, the release lever is provided with guide surfaces on both sides near the parallel surface of the stadium-shaped hole, or the guide surface is parallel to the parallel surface of the stadium-shaped hole.

[0069] This solution adopts the above structural form to keep the release lever in the same plane when moving up and down, which helps to improve the stability of its operation.

[0070] A battery pack, characterized in that the battery pack comprises the above-mentioned unlocking device.

[0071] Based on common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain preferred examples of the present invention.

[0072] The positive progressive effects of the present invention are: The unlocking device of the present invention can be widely used in the field of battery replacement, especially for battery replacement devices, battery replacement shuttles, electric vehicles, and other application scenarios that require efficient battery replacement. During the unlocking operation of the unlocking device, the drive mechanism drives the unlocking guide block in the plane to drive the unlocking lever for up and down movement to unlock the battery pack. Such a structural shape can effectively reduce the height of the unlocking device and contribute to the unlocking device functioning better in a narrow environment. The internal structure of the unlocking device of the present invention, such as the unlocking lever and the unlocking guide block, is not only simple in structure but also easy to manufacture.At the same time, the unlocking device is equipped with a detection element, which can not only detect the drive mechanism during the unlocking process to ensure that the drive structure can be driven in place, but also detect the unlocking lever to ensure that the unlocking lever can move and unlock normally after the drive mechanism moves. This ensures that the unlocking device works efficiently and accurately and facilitates the protection of the unlocking device. Description of the drawings Fig. 1 shows a schematic diagram of the structure of a battery exchange shuttle according to an embodiment of the present invention. Fig. 2 shows a schematic diagram of the structure of the battery changing device according to an embodiment of the present invention. Fig. 3 shows a schematic diagram (I) of the structure of the unlock lever lifting detecting device according to an embodiment of the present invention. Fig. 4 is a schematic diagram (II) of the structure of the unlock lever lifting detecting device according to an embodiment of the present invention. Fig. 5 shows a schematic diagram of the assembly of the release lever and the release guide block according to an embodiment of the present invention. Fig. 6 shows a schematic diagram of the installation of the release lever according to an embodiment of the present invention. Fig. 7 shows a schematic diagram of the structure of the unlocking guide block according to an embodiment of the present invention. Fig. 8 shows a schematic diagram of the structure of the release lever according to an embodiment of the present invention. Fig. 9 shows a schematic diagram of the structure of a body mount according to an embodiment of the present invention. Fig. 10 is a schematic diagram of the structure of an ejector rod within a battery pack according to an embodiment of the present invention. Fig. 11 is a schematic diagram of the structure of a battery pack according to an embodiment of the present invention.

[0073] In the figures: Release lever 1: lever body part 11: first lever body 111: second lever body 112; anti-rotation surface 113; cam part 12; through hole 121; detection surface 13: release guide block 2: release guide groove 21: first guide part 211: second guide part 212; third guide part 213; cavity 22: slot 23; drive mechanism 3; horizontal guide mechanism 4: horizontal guide groove 41: vertical guide mechanism 5: vertical guide groove 51; detection element 6: first detection element 61: second detection element 62: third detection element 63; fastening component 7: mounting body 71; adjusting body 72; adjusting groove 721; detection opening 73; battery plate 8: stadium-shaped hole 81; mounting component 9; body fixing plate 91; Battery pack mounting plate 92; escape groove 93; ejector rod mechanism 400; locking mechanism 40; ejector seat 41; mounting bracket 50 Detailed embodiments

[0074] The present invention will now be described more clearly and completely by way of example only in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the example only.

[0075] An embodiment of the present invention provides an unlocking device as shown in the Fig. 1-11. The unlocking device includes: an unlocking lever 1, an unlocking guide block 2, and a drive mechanism 3. The battery pack is connected to the unlocking guide block 2 and drives the unlocking guide block 2 for horizontal movement; the unlocking guide block 2 is provided with an unlocking guide groove 21, and the unlocking guide groove 21 guides the unlocking lever 1 for up-and-down movement, so that the unlocking lever 1 pushes the locking and unlocking structure of the electric vehicle and the battery pack for locking and unlocking.

[0076] In this embodiment, the unlocking device is provided on a battery replacement device. It is arranged on the battery replacement shuttle for locking and unlocking the battery pack in the electric vehicle, so that the unlocking lever 1 can press the battery pack in the electric vehicle to enable the battery pack to be replaced in the electric vehicle. Of course, the unlocking device can also be provided on the battery pack of an electric vehicle and serves to lock and unlock the locking and unlocking structure of the unlocking lever 1 on the electric vehicle to replace the battery pack.

[0077] In this embodiment, the release lever 1 is arranged vertically. Under the driving action of the drive mechanism 3, the release lever 1 can move up and down along its axis and acts on the locking mechanism 40 on the electric vehicle to unlock the locking mechanism 40. This allows the battery pack to be combined with or separated from the body of the electric vehicle.

[0078] At the same time, the unlocking device in this embodiment converts the horizontal movement of the drive mechanism 3 into the up-and-down movement of the unlocking lever 1 using the unlocking guide block 2, thereby reducing the height of the unlocking device and facilitating unlocking in the narrow space under the vehicle. At the same time, the unlocking device has a compact structure that facilitates unlocking of various vehicle models.

[0079] As in the Fig. 1 - 11, the release lever 1 is provided with a laterally extending cam part 12 and the release guide groove 21 guides the cam part 12 of the release lever 1 for up and down movement to enable the release lever 1 to unlock a battery pack on an electric vehicle.

[0080] In this embodiment, the release guide block and the drive mechanism 3 are arranged horizontally, and the lever body portion 11 of the release member is installed vertically in the release guide block 2. The release guide block 2 is provided with an release guide groove 21, and the cam portion 12 of the release member extends into the release guide groove 21 and is in sliding engagement with the release guide groove 21. The drive mechanism 3 has a split construction, and the drive mechanism 3 drives the movement of the release member through the release guide block 2. The split construction reduces the accuracy requirements for the installation position between the drive mechanism 3 and the release member, thus reducing production costs.

[0081] As in the Fig. 1-11, the unlocking device further comprises a horizontal guide mechanism 4, and the drive mechanism 3 is provided at one end of the unlocking guide block 2, the drive mechanism 3 driving the unlocking guide block 2 for horizontal movement in the horizontal guide mechanism 4 to enable up and down movement of the unlocking lever 1 along the unlocking guide groove 21.

[0082] In this embodiment, the horizontal guide mechanism 4 includes a horizontal guide frame, wherein a horizontal guide groove 41 is provided in the horizontal guide frame, wherein the horizontal guide groove 41 is used to guide the horizontal movement of the release guide block 2. A slot 23 is provided at one end of the release guide block 2 near the drive mechanism 3, wherein the drive mechanism 3 includes a thrust output end and a connecting block attached to the thrust output end, wherein the connecting block is embedded in the slot 23.

[0083] In the present invention, the horizontal guide mechanism 4 guides and limits the horizontal movement of the unlocking guide block 2, and a stable up-and-down movement of the unlocking lever 1 is ensured along the unlocking guide groove 21 to enable unlocking, thereby saving space in the vertical direction.

[0084] As in the Fig. 1 - 11, the release lever 1 is installed with left and right limits relative to the horizontal direction of movement.

[0085] In this embodiment, the unlocking guide groove 21 comprises a first guide part 211, a second guide part 212, and a third guide part 213. In other embodiments, the unlocking guide groove 21 may also be a diagonal guide groove that guides the unlocking lever 1, extending from the lowest position to the highest position, the diagonal guide groove being provided on the side wall of the unlocking guide block 2 parallel to its moving direction.

[0086] In this embodiment, the extension direction of the first guide part 211 coincides with the movement direction of the unlocking guide block 2; the second guide part 212 extends parallel to the first guide part 211 and is located at the lower end of the first guide part 211; one end of the third guide part 213 is connected to one end of the first guide groove near the third guide part 213 at an inclination downward, and the other end of the third guide part 213 is connected to one end of the second guide part 212 near the third guide part 213. When the drive mechanism 3 drives the unlocking guide block 2 to move horizontally away from the drive mechanism 3, the unlocking guide block 2 drives the lever body part 11 to move upward, so that the unlocking member unlocks the locking mechanism 40 on the electric vehicle.The release guide groove 21 includes a first guide portion 211 extending in the same direction of movement as the release guide block 2, and a second guide portion 212 extending parallel to the first guide portion 211 and located at the lower end of the first guide portion 211. The first guide portion 211 and the second guide portion 212 ensure that the release guide block 2 can move horizontally and provide horizontal support for the convex portion of the release element. It also includes a third guide portion 213, which is connected to the second guide portion 212 at an angle downward from the first guide portion 211 and ensures that the convex portion of the release lever can move up and down.

[0087] As in the Fig. 1-11, the unlocking guide groove 21 includes: a first guide part 211, the extending direction of the first guide part 211 being consistent with the moving direction of the unlocking guide block 2; a second guide part 212, the second guide part 212 being parallel to the first guide part 211 and located at the lower end of the first guide part 211; and a third guide part 213, one end of the third guide part 213 being connected to an end of the first guide groove near the third guide part 213 in a downwardly inclined manner, and the other end of the third guide part 213 being connected to an end of the second guide part 212 near the third guide part 213.

[0088] In this embodiment, the unlocking guide groove 21 includes a first guide part 211, a second guide part 212, and a third guide part 213. The extension direction of the first guide part 211 coincides with the movement direction of the unlocking guide block 2; the second guide part 212 runs parallel to the first guide part 211 and is located at the lower end of the first guide part 211; one end of the third guide part 213 is connected to one end of the first guide groove near the third guide part 213 in a downwardly inclined manner, and the other end of the third guide part 213 is connected to one end of the second guide part 212 near the third guide part 213.

[0089] In this embodiment, the unlocking guide groove 21 comprises a first guide part 211 in the same direction of movement as the unlocking guide block 2, and a second guide part 212 running parallel to the first guide part 211 and arranged at the lower end of the first guide part 211. The first guide part 211 and the second guide part 212 ensure that the unlocking guide block 2 can move horizontally and provide horizontal support for the convex part of the unlocking element. It also comprises a third guide part 213, which is connected to the second guide part 212 at an angle downward from the first guide part 211 and ensures that the convex part of the unlocking lever can move up and down. As shown in the Fig. 1-11, the unlocking device further comprises a vertical guide groove 51, wherein the highest point of the vertical guide groove 51 is higher than or equal to the top of the first guide part 211 and the lowest point of the vertical guide groove 51 is lower than or equal to the lower end of the second guide part 212; when the unlocking lever 1 is in the highest position, the end of the first guide part 211 remote from the third guide part 213 corresponds to the left side of the vertical guide groove 51, or the end of the first guide part 211 remote from the third guide part 213 is located on the left side of the vertical guide groove 51.When the release lever 1 is in the lowest position, the end of the second guide part 212 remote from the third guide part 213 corresponds to the right side of the vertical guide groove 51, or the end of the second guide part 212 remote from the third guide part 213 is on the right side of the vertical guide groove 51.

[0090] In this embodiment, a vertical guide mechanism 5 is provided for guiding the release lever 1, thereby ensuring that the release lever 1 can move up and down in a predetermined direction and preventing tilting to the left or right, which is advantageous for aligning the release position and quickly recognizing the release.

[0091] As in the Fig. 1-11, the unlocking guide groove 21 further includes: a first chamfer, the first chamfer being provided at the junction between the first guide part 211 and the third guide part 213; and a second chamfer, the second chamfer being provided at the junction between the second guide part 212 and the third guide part 213.

[0092] In this embodiment, the chamfer provided at the corner of the Z-shaped unlocking guide groove 21 can reduce the friction of the cam part 12 of the unlocking lever 1 when it moves in the horizontal guide groove 41, prevent jamming, and ensure smooth movement.

[0093] As in the Fig. 1 - 11, the release lever 1 comprises a cam part 12 and a lever body part 11, wherein the cam part 12 extends from the outer peripheral surface of the lever body part 11 into the release guide groove 21 along the radial direction of the lever body part 11, and the release guide groove 21 guides the lever body part 11 through the cam part 12 for up and down movement in the release guide block 2.

[0094] In this embodiment, the lever body part 11 is a columnar lever. A cam part 12 extends along the radial direction from the outer peripheral surface of the lever body part 11. The cam part 12 is connected to the drive mechanism 3 and can drive the lever body part 11 to move up and down along the axis by driving the drive mechanism 3. When the lever body part 11 moves up and acts on the locking mechanism 40 on the battery pack or the electric vehicle, the battery pack can be quickly unlocked. A cam part 12 is provided on the outer peripheral surface of the lever body part 11. The drive mechanism 3 can drive the lever body part 11 through the cam part 12 to move up and down to unlock the battery pack.Such a structure makes the arrangement of the drive mechanism 3 more flexible, and the extension length of the lever body part 11 can be flexibly designed and adjusted according to the connection position of the cam part 12 on the lever body part 11, which contributes to a more compact structure of the unlocking device.

[0095] As in the Fig. As shown in Figures 1-11, the release guide block 2 is provided with an upwardly and downwardly extending cavity 22, and the release guide grooves 21 of the same shape are provided on both side walls of the cavity 22. Two cam members 12 are provided, respectively, on both sides of the lever body member 11. The cam members 12 on both sides are arranged in the release guide grooves 21.

[0096] In this embodiment, a cavity 22 penetrating upwards and downwards is provided in the release guide block 2. On the side walls of the cavity 22 facing upwards and away from the battery pack, release guide grooves 21 of the same shape are provided, respectively. Each cam portion 12 on the release element extends along the lever body portion 11 into the corresponding release guide groove 21 and is slidably connected to the release guide groove 21. When the drive mechanism 3 drives the release guide block 2 to move, the cam portion 12 moves in the release guide groove 21 to drive the lever body portion 11 to move up and down. The release guide groove 21 in the cavity 22 is designed symmetrically, so that when the release guide groove 21 acts on the release element, the force is more balanced and the movement is more smooth.

[0097] As in the Fig. 1 - 11, the release lever 1 comprises a cam part 12, a through hole 121 is provided on the lever body part 11, the cam part 12 penetrates the through hole and the cam parts 12 are respectively formed on both sides of the lever body part 11.

[0098] In this embodiment, the cam part 12 and the lever body part 11 may also have a split structure. A through hole 121 is opened in the lever body part 11 in a direction perpendicular to its axis, and a cam comprises a bolt, a nut, and a washer. The bolts are installed in the through holes 121 to form two cam parts 12 on both sides of the lever body part 11. The lever body part 11 and the cam part are detachable structures, which facilitates disassembly and installation of the release parts and part replacement.

[0099] As in the Fig. As shown in Figures 1-11, the lever body portion 11 includes a first lever body 111 and a second lever body 112. The second lever body 112 is connected to the cam portion 12, and the first lever body 111 is provided at one end of the second lever body 112 near the battery pack. The end of the first lever body 111 remote from the second lever body 112 has an arcuate surface.

[0100] In this embodiment, the upper part of the lever body part 11 is the first lever body 111, and the upper surface of the first lever body 111 is formed as an arcuate surface, and the lower part of the lever body part 11 is the second lever body 112. The outer surface of the second lever body 112 has cam parts 12 extending along its radial direction on both sides. One end of the unlocking element extending into the battery pack is arranged in an arcuate shape, which is advantageous for preventing damage to the battery pack when the unlocking element is inserted into the battery pack to trigger the unlocking connection, and which contributes to protecting the internal structure of the battery pack.

[0101] As in the Fig. 1 - 11, the first lever body preferably has a conical structure.

[0102] In this embodiment, the upper end of the first lever body 111 is formed as a conical structure, and the top surface of the conical structure is an arcuate surface. The conical structural design at the end of the first lever body 111 facilitates the insertion of the release element into the battery pack and allows for a certain offset error, thereby increasing the accuracy of inserting the release element into the battery pack.

[0103] As in the Fig. 1 - 11, the outer surface of the lever body part 11 is provided with an anti-rotation surface 113 to prevent the lever body part 11 from rotating in the release guide block 2.

[0104] In this embodiment, the lever body part 11 is a cylindrical lever, and an anti-rotation surface 113 is formed on the side of the lever body part 11, which is parallel to the axial cross section of the lever body part. When the drive mechanism 3 drives the lever body part 11 to move up and down, the anti-rotation surface 113 conforms to the external structure so that the lever body part 11 can only move within this plane. The outer side of the lever body part 11 is provided with an anti-rotation surface 113, which helps prevent rotation of the lever body part 11 when the drive mechanism 3 drives the unlocking element to move up and down.

[0105] As in the Fig. 1-11, the unlocking device further comprises a detecting element 6, wherein the detecting element 6 is provided on the unlocking guide block 2 and is used to detect the raising and lowering of the unlocking lever 1; and / or the detecting element 6 is used to detect the horizontal movement of the unlocking guide block 2.

[0106] In this embodiment, the first detection element 61 detects the drive mechanism 3 to ensure that the drive structure can be driven into place. The second detection element 62 detects the unlocking lever 1 to ensure that the unlocking lever 1 can move and unlock normally after the drive mechanism 3 has moved. The battery pack can only be unlocked when the unlocking lever 1 moves to the second set position. The second detection element 62 detects whether the unlocking lever 1 moves to the set position to ensure normal execution of the unlocking work.

[0107] Among them, the detection elements 6 include: a first detection element 61 used to detect whether the release guide block 2 moves to the first setting position, and a second detection element 62 used to detect whether the release lever 1 moves upward to the second setting position.

[0108] In this embodiment, a first detection element 61 is provided at the first setting position on one side of the drive mechanism 3. When the first detection element 61 detects that the drive mechanism 3 moves to the first setting position, the first detection element 61 can generate a first electrical signal. A second detection element 62 is provided at the second setting position on one side of the release lever 1. When the second detection element 62 detects that the release lever 1 moves to the second setting position, the second detection element 62 can generate a second electrical signal. The release lever lift detection device receives the first electrical signal and the second electrical signal and can determine whether the drive mechanism 3 and the release lever 1 have moved into place.

[0109] In the present invention, the drive mechanism 3 drives the unlocking lever 1 to move to unlock the battery pack. The first detecting element 61 detects the drive mechanism 3 to ensure that the drive structure can be driven in place. The second detecting element 62 serves to detect the unlocking lever 1 to ensure that the unlocking lever 1 can move and unlock normally after the drive mechanism 3 has moved. The battery pack can be unlocked only when the unlocking lever 1 moves to the second set position. The second detecting element 62 detects whether the unlocking lever 1 moves to the set position to ensure normal execution of the unlocking work.

[0110] As in the Fig. 1-11, the detection element 6 further includes a third detection element 63, wherein the third detection element 63 detects that the unlocking guide block 2 moves in a direction close to the drive mechanism 3 to the third setting position and is used to control the disengagement of the drive mechanism 3.

[0111] In this embodiment, a third setting position is provided along the side of the release guide block 2 near the driver, and a third detection element 63 is installed at the third setting position. When the driver drives the release guide block 2 to move backward, a third detection element 63 is provided between the release guide block 2 and the driver to determine the movement position of the release guide block 2. The third detection element 63 helps ensure that the release guide block 2 does not move backward excessively, and contributes to protecting the structure of the release lever lift detection device and extending its service life.

[0112] As in the Fig. 1-11, the unlocking device comprises a fastening component 7. The first detection element 61 and the second detection element 62 are both fixedly installed on the fastening component 7.

[0113] In this embodiment, the first detection element 61, the second detection element 62, and the third detection element 63 are fixedly installed on the side of the fastening component 7 far from the release guide block 2: the first detection element 61 is installed on the side of the fastening component 7 far from the driver, the second detection element 62 is installed on the fastening component 7 at a position corresponding to the release lever 1, and the third detection element 63 is installed on the side of the fastening component 7 near the driver. The fastening component 7 can enable the fixed installation of the detection element 6, and the fastening component 7 can ensure the installation stability of the detection element 6, which contributes to ensuring the detection accuracy of the detection element 6.

[0114] As in the Fig. 1-11, the fastening component 7 comprises a mounting body 71 and at least one adjusting body 72, wherein the first detection element 61 and / or the second detection element 62 are connected to the adjusting body 72 and the adjusting body 72 is movably connected to the installation plate.

[0115] In this embodiment, the fastening component 7 has a split construction. The fastening component 7 includes a plate-shaped mounting body 71 mounted vertically parallel to the release guide block 2. The first detection element 61, the second detection element 62, and the third detection element 63 are each movably mounted on the mounting body 71 via the adjustment body 72. By using the adjustment body 72, the adjustment of the installation position of the detection element 6 and, at the same time, the disassembly and assembly of the detection element 6 can be facilitated.

[0116] As in the Fig. 1 - 11, the adjusting body 72 is provided with an adjusting groove 721, wherein the first detecting element 61 can adjust the installation position along the driving direction of the driving mechanism 3 through the adjusting groove 721 and the second detecting element 62 can adjust the installation position along the unlocking direction of the unlocking lever 1 through the adjusting groove 721.

[0117] In this embodiment, an adjustment groove 721 is provided on the adjustment body 72, and the adjustment groove 721 is a stadium-shaped hole 81. Bolts pass through the stadium-shaped hole 81 to connect the adjustment body 72 and the mounting body 71. At the same time, the longitudinal direction of the stadium-shaped hole 81 on the adjustment body 72 of the first detection element 61 is set horizontally to facilitate the position adjustment of the first detection element 61 in the longitudinal direction. The longitudinal direction of the stadium-shaped hole 81 on the adjustment body 72 of the second detection element 62 is set vertically to facilitate the position adjustment of the second detection element 62 in the height direction. The adjustment body 72 adjusts the installation position of the detection element 6 through the adjustment groove 721, which contributes to ensuring the detection accuracy of each detection element 6.At the same time, the adjustment direction of the corresponding adjustment groove 721 of the first detection element 61 and the second detection element 62 is related to the movement direction of the corresponding movement component in order to facilitate fine adjustment of the detection element 6.

[0118] As in the Fig. 1 - 11, the fastening component 7 is provided with a detection opening 73, wherein the detection opening 73 releases the detection position on the side of the release lever 1.

[0119] In this embodiment, the fastening component 7 is provided with a detection opening 73. The detection position of the release lever 1 corresponds to the detection opening 73, and the detection element 6 can detect the up and down movement of the release lever 1 through the detection opening 73.

[0120] Below is, as in the Fig. 1-11, a second detecting element 62 is installed at the detecting opening 73, and a detecting surface 13 is provided at one end of the unlocking lever 1 facing the second detecting element 62.

[0121] In this embodiment, the cam portion 12 and the lever body portion 11 are rigidly connected. The end surface of the cam portion 12 remote from the lever body portion 11 is the detection surface 13. After the release element has moved, the sensor determines whether the movement height of the lever body portion 11 is in place by detecting the detection surface 13. The design of the detection surface 13 contributes to detecting the position of the cam portion, thus determining the movement position of the lever body portion 11.

[0122] Below, the detection element 6 is a proximity switch.

[0123] In this embodiment, when the first sensing element 61 detects that the release guide block 2 moves to the first set position away from one end of the driver, the first sensing component 61 can transmit a first electrical signal to determine that the driver is driving the release guide block 2 into place. When the second sensing element 62 detects that the release lever 1 moves upward to the second set position, the second sensing element 62 can transmit a second electrical signal to determine that the release lever 1 has risen to the corresponding height.When the third detection element 63 detects that the unlocking guide block 2 moves to the third setting position near one end of the driver, the third detection element 63 can send a third electrical signal to determine that the unlocking guide block 2 has been retracted and moved in place. Among them, the first detection element 61 and the third detection element 63 play a role in limiting the limit stroke of the left and right movement of the unlocking guide block 2 to ensure accurate execution of the unlocking work and protect the unlocking device.

[0124] As in the Fig. 1-11, the unlocking device further comprises a horizontal guide mechanism 4, and the drive mechanism 3 drives the unlocking guide block 2 for horizontal movement in the horizontal guide mechanism 4 to enable up and down movement of the unlocking lever 1 along the unlocking guide groove 21.

[0125] In this embodiment, the horizontal guide mechanism 4 guides and limits the horizontal movement of the unlocking guide block 2, and a stable up-and-down movement of the unlocking lever 1 is ensured along the unlocking guide groove 21 to enable unlocking, thereby saving space in the vertical direction.

[0126] As in the Fig. 1-11, the horizontal guide mechanism 4 comprises a horizontal guide frame, wherein a horizontal guide groove 41 is provided in the horizontal guide frame, wherein the horizontal guide groove 41 is used to guide the horizontal movement of the unlocking guide block 2.

[0127] In this embodiment, the horizontal guide groove 41 is used to guide the horizontal movement of the release guide block 2. A slot 23 is provided at one end of the release guide block 2 near the drive mechanism 3. The drive mechanism 3 includes a thrust output end and a connecting block attached to the thrust output end, the connecting block being embedded in the slot 23.

[0128] In the present invention, the horizontal guide mechanism 4 guides and limits the horizontal movement of the unlocking guide block 2, and a stable up-and-down movement of the unlocking lever 1 is ensured along the unlocking guide groove 21 to enable unlocking, thereby saving space in the vertical direction.

[0129] As in the Fig. 1 - 11, the unlocking device further comprises a vertical guide mechanism 5 which is fixedly arranged on the horizontal guide mechanism 4, wherein the unlocking lever 1 can move up and down by means of the vertical guide mechanism 5.

[0130] In this embodiment, a vertical guide mechanism 5 is provided for guiding the release lever 1, thereby ensuring that the release lever 1 moves up and down in a predetermined direction and preventing tilting to the left and right, which is advantageous for aligning the release position and quickly recognizing the release.

[0131] As in the Fig. 1-11, a slot 23 is provided at one end of the unlocking guide block 2 near the drive mechanism 3, the drive mechanism 3 comprising a thrust output end and a connecting block attached to the thrust output end, the connecting block being embedded in the slot 23.

[0132] In this embodiment, a slot 23 is provided at one end of the unlocking guide block 2 near the drive mechanism 3, the drive mechanism 3 comprising a thrust output end and a connecting block attached to the thrust output end, the connecting block being embedded in the slot 23.

[0133] The design of the slot 23 facilitates the connection between the drive mechanism 3 and the release guide block 2.

[0134] As in the Fig. 1-11, the battery changing device further comprises a battery tray 8, the battery tray 8 being provided with a stadium-shaped hole 81, and the battery tray 8 being used to support the battery pack: the unlocking device is provided below the battery tray 8, the unlocking device being used to unlock the battery pack through the stadium-shaped hole 81.

[0135] In this embodiment, the battery pack fixing plate 92 is provided with an escape groove 93, and the unlocking member passes through the escape groove 93 and is fixed to the body fixing plate 91. At the same time, a battery tray 8 is also installed on the battery pack fixing plate 92. A stadium-shaped hole 81 is provided at the corresponding position between the battery tray 8 and the unlocking member. When the unlocking guide block 2 drives the unlocking member to move up and down, the lever body part 11 can pass through the stadium-shaped hole 81 and unlock the battery pack. The escape groove 93 is provided to prevent the upper battery pack fixing plate 92 from blocking the unlocking member and impairing the function of the unlocking member.

[0136] As in Fig. As shown, the battery changing device also comprises a mounting component 9. The mounting component 9 is provided below the battery plate 8 and the unlocking device is provided on the mounting component 9.

[0137] In this embodiment, the mounting component 9 is provided below the battery tray 8, and the release device is installed on the mounting component 9. The release lever 1 of the release device moves upward and can be guided through the stadium-shaped hole 81 on the battery tray 8.

[0138] As in the Fig. As shown, the mounting component 9 includes a body mounting plate 91 for connecting and securing the body of the electric vehicle; and a battery pack mounting plate 92, wherein the battery pack mounting plate 92 serves to connect and secure the battery pack. The release device is installed on the vehicle body mounting plate 91 or the battery pack mounting plate 92.

[0139] In this embodiment, the mounting component 9 also includes a body mounting plate 91 and a battery pack mounting plate 92. The battery pack mounting plate 92 serves to connect and position the battery pack, and the battery pack mounting plate 92 is provided above the body mounting plate 91. The body mounting plate 91 can prevent relative movement between the body and the battery change shuttle, thereby helping the battery change shuttle to smoothly lock and unlock the battery pack; the battery pack mounting plate 92 can prevent relative movement between the battery change shuttle and the battery pack, thereby contributing to the locking and unlocking of the battery pack.

[0140] As in the Fig. As shown, the battery pack mounting plate 92 is provided above the body mounting plate 91. The release device is mounted on the body mounting plate 91. An escape groove 93 is provided at one end of the battery pack mounting plate 92 near the release device. The release device passes through the escape groove 93 and is fixed to the body mounting plate 91.

[0141] In this embodiment, the battery pack fixing plate 92 is provided with an escape groove 93, and the release lever 1 passes through the escape groove 93 and is fixed to the body fixing plate 91. The escape groove 93 is provided to prevent the upper battery pack fixing plate 92 from interfering with the release lever 1 and impairing the function of the release lever 1.

[0142] As in the Fig. As shown, the release lever 1 is provided with guide surfaces on both sides near the parallel surface of the stadium-shaped hole 81, or the guide surface is parallel to the parallel surface of the stadium-shaped hole 81.

[0143] In this embodiment, the guide surface of the release lever 1 is parallel to the parallel surface of the stadium-shaped hole 81 to keep the release lever 1 in the same plane when moving up and down, which contributes to improving the stability of its operation.

[0144] In this embodiment, in the present invention, the up and down movement of the release lever 1 can be completed by the horizontal movement of the drive mechanism 3, thereby effectively reducing the height of the release device, so that the release device can more conveniently enter the floor of electric vehicles with different chassis heights.

[0145] In another embodiment, the release lever 1 is a torque release lever, wherein the torque release lever exerts a torque to cooperate with the locking and unlocking mechanism to enable unlocking.

[0146] In this case, the release lever 1 can be a torque gun. If the locking and unlocking mechanism is a threaded lock, an external thread is provided on the outer peripheral surface of the release lever 1. When unlocking is required, the release lever 1 drives the external thread thereon to realize unlocking with the internal thread on the release mechanism; if the locking and unlocking mechanism is a T-shaped lock, the top of the release lever 1 is provided with a crossbar. The crossbar is fixedly connected to the lever body part 11 of the release lever 1, so that the release lever 1 forms a T-shaped structure. The rotation of the release lever 1 drives the crossbar to change its angle.When the angle of the crossbar matches the angle of the opening on the T-shaped lock, the crossbar is released from the opening on the T-shaped lock to unlock the locking and unlocking mechanism. The unlocking lever 1 adopts such a structure and unlocking shape, making it suitable for a variety of unlocking environments.

[0147] As in the Fig. As shown in Figures 9-11, the body mounts are simultaneously connected to the two body side members of the electric vehicle. The body mount is a frame structure welded with profiles. Each locking mechanism 40 is arranged on the underside of the body mount's side member and serves to lock with the locking adjustment mechanism on the battery pack, allowing the battery pack to be connected to or disconnected from the body mount for battery replacement. Among them, the locking mechanisms 40 are arranged in two rows on the underside of the body mount, each corresponding to the two body side members. As shown in Fig. 10, the hooks on each mounting bracket 50 on the battery pack of the electric vehicle are used for insertion into the locking mechanism 40 to achieve locking.

[0148] During the unlocking process, the body fixing plate 91 and the battery pack fixing plate 92 move in the first direction, so that the body positioning assembly and the battery pack fixing plate 92 are adjusted to the appropriate position according to the body positioning hole position and the battery pack position of the vehicle model to be replaced, and the body fixing plate 91 is lifted for positioning on the body. The battery pack fixing plate 92 is positioned by the positioning member and drives the mobile battery pack.Since the battery pack fixing plate 92 is movable and the unlocking lever 1 is located on the battery pack fixing plate 92, the sliding hole of the battery pack is formed as a stadium-shaped sliding hole, or a sliding hole having a diameter relatively larger than the moving stroke of the battery pack fixing plate 92 during the unlocking operation.

[0149] When locking: The battery pack can be locked and unlocked by lifting the release lever 1. The release lever 1 protrudes into the sliding hole of the battery pack and pushes the ejector rod inside the battery pack, causing the ejector rod inside the battery pack to push the locking mechanism 40 and open the lock. Slide the hook on the mounting bracket 50 on the battery pack into the L-shaped groove of the locking mechanism 40 to achieve locking.

[0150] During unlocking: The battery pack fixing plate 92 moves the battery pack toward the inside of the L-shaped groove of the locking mechanism 40. The unlocking lever 1 presses the locking link, causing the locking link to press against the locking mechanism 40 and opening the locking mechanism 40. The battery pack fixing plate 92 drives the hook on the battery pack installation bracket 50 to move toward the unlocking opening of the L-shaped groove and retracts from the locking mechanism 40 to achieve unlocking.

[0151] In particular, the release lever 1 presses, as shown in the Fig.9 to 11, the ejector rod mechanism 400 is engaged, and the ejector seat 41 of the release lever 1 drives the ejector rod upward to raise the locking link of the locking mechanism 40 and achieve unlocking. Then, the hook on the mounting bracket 50 is pushed into the L-shaped groove, and the locking link of the locking mechanism 40 drops downward to achieve locking.

[0152] Although specific embodiments of the present invention have been described above, it should be understood by those skilled in the art that these are merely examples, and the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and spirit of the present invention, but these changes and modifications are all within the scope of the present invention. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] CN 2022207940427

[0001] CN 2022103513259

[0001]

Claims

[1] A release device for locking and unlocking a battery pack in an electric vehicle, characterized by that it includes: a release lever, a release guide block and a drive mechanism, wherein the drive mechanism is connected to the release guide block and drives the release guide block for horizontal movement; wherein the unlocking guide block is provided with an unlocking guide groove, the unlocking guide groove guiding the unlocking lever to move up and down so that the unlocking lever pushes the locking and unlocking structure of the electric vehicle and the battery pack to perform locking and unlocking. [2] Unlocking device according to claim 1, characterized bythat the release lever is provided with a laterally extending cam part and the release guide groove guides the cam part of the release lever for up and down movement to enable the release lever to unlock a battery pack on an electric vehicle; and / or: that the unlocking device further comprises a horizontal guide mechanism and the drive mechanism is provided at one end of the unlocking guide block, wherein the drive mechanism drives the unlocking guide block for horizontal movement in the horizontal guide mechanism to enable up and down movement of the unlocking lever along the unlocking guide groove. [3] Unlocking device according to one of claims 1 to 2, characterized bythat the release lever is installed with left and right limits relative to the horizontal movement direction and the release guide groove is a diagonal guide groove that guides the release lever to extend from the lowest position to the highest position, the diagonal guide groove being provided on a side wall of the release guide block parallel to its movement direction. [4] Unlocking device according to claim 3, characterized by that the release guide groove includes: a first guide part, wherein the extension direction of the first guide part coincides with the movement direction of the unlocking guide block; a second guide part, the second guide part running parallel to the first guide part and being located at the lower end of the first guide part; and a third guide part, wherein one end of the third guide part is connected to an end of the first guide groove near the third guide part in a downwardly inclined manner, and the other end of the third guide part is connected to an end of the second guide part near the third guide part. [5] Unlocking device according to claim 4, characterized by that the unlocking device further comprises a vertical guide groove, wherein the highest point of the vertical guide groove is higher than or equal to the top of the first guide part and the lowest point of the vertical guide groove is lower than or equal to the lower end of the second guide part; when the release lever is in the highest position, the end of the first guide part remote from the third guide part corresponds to the left side of the vertical guide groove or the end of the first guide part remote from the third guide part is on the left side of the vertical guide groove; when the release lever is in the lowest position, the end of the second guide part remote from the third guide part corresponds to the right side of the vertical guide groove, or the end of the second guide part remote from the third guide part is on the right side of the vertical guide groove; and / or that the release guide groove also comprises: a first chamfer, the first chamfer being provided at the junction between the first guide part and the third guide part; and a second chamfer, wherein the second chamfer is provided at the connection point between the second guide part and the third guide part. [6] Unlocking device according to one of claims 1 to 5, characterized by that the release lever comprises a cam part and a lever body part, wherein the cam part extends from the outer peripheral surface of the lever body part into the release guide groove along the radial direction of the lever body part and the release guide groove guides the lever body part through the cam part for up and down movement in the release guide block. [7] Unlocking device according to claim 6, characterized bythat the release guide block is provided with an upward and downward extending cavity and the release guide grooves of the same shape are provided on both side walls of the cavity, and there are two cam parts which are arranged correspondingly on both sides of the lever body part; the cam parts on both sides are arranged in the release guide grooves; Preferably, the release lever comprises a cam part, a through hole is provided on the lever body part, the cam part penetrates the through hole, and the cam parts are each formed on both sides of the lever body part. [8] Unlocking device according to one of claims 6 to 7, characterized bythat the lever body part comprises a first lever body and a second lever body, wherein the second lever body is connected to the cam part and the first lever body is provided at one end of the second lever body near the battery pack; the end of the first lever body remote from the second lever body has an arcuate surface; Preferably, the first lever body has a conical structure. [9] Unlocking device according to one of claims 6 to 8, characterized by that the outer surface of the lever body part is provided with an anti-rotation surface to prevent the lever body part from rotating in the release guide block. [10] Unlocking device according to one of claims 1 to 9, characterized by that the unlocking device also comprises a detection element, wherein the detecting element is provided on the unlocking guide block and is used to detect the raising and lowering of the unlocking lever; and / or wherein the detection element is used to detect the horizontal movement of the release guide block; Preferably, the detection element is a proximity switch. [11] Unlocking device according to claim 10, characterized by that the recording element includes: a first detecting element, the first detecting element being used to detect whether the release guide block moves to the first setting position; and a second detecting element, the second detecting element being used to detect whether the release lever moves upward to the second setting position; Preferably, the detecting element further comprises a third detecting element, the third detecting element detecting that the unlocking guide block moves in a direction close to the drive mechanism to the third setting position and is used to control the disengagement of the drive mechanism. [12] Unlocking device according to claim 11, characterized by that the unlocking device comprises a fastening component, and the first sensing element and the second sensing element are both fixedly installed on the fastening component. [13] Unlocking device according to claim 12, characterized byin that the fastening component comprises a mounting body and at least one adjusting body, wherein the first detection element and / or the second detection element are connected to the adjusting body and the adjusting body is movably connected to the installation plate; preferably, the adjusting body is provided with an adjusting groove, wherein the first detection element can adjust the installation position along the drive direction of the drive mechanism by means of the adjusting groove and the second detection element can adjust the installation position along the unlocking direction of the unlocking lever by means of the adjusting groove. [14] Unlocking device according to claim 13, characterized byin that the fastening component is provided with a detection opening, wherein the detection opening exposes the detection position on the release lever; preferably, a second detection element is installed at the detection opening, and a detection surface is provided at an end of the release lever facing the second detection element. [15] Unlocking device according to one of claims 1 to 14, characterized by that the unlocking device further comprises a horizontal guide mechanism, wherein the drive mechanism drives the unlocking guide block for horizontal movement in the horizontal guide mechanism to enable the lifting and lowering movement of the unlocking lever along the unlocking guide groove; Preferably, the horizontal guide mechanism comprises a horizontal guide frame, wherein a horizontal guide groove is provided in the horizontal guide frame, wherein the horizontal guide groove is used to guide the horizontal movement of the release guide block; Preferably, the unlocking device further comprises a vertical guide mechanism fixedly arranged on the horizontal guide mechanism, wherein the unlocking lever can move up and down by the vertical guide mechanism. [16] Unlocking device according to one of claims 1 to 15, characterized bythat a slot is provided at one end of the release guide block near the drive mechanism, wherein the drive mechanism comprises a thrust output end and a connecting block attached to the thrust output end, wherein the connecting block is embedded in the slot; and / or that the release lever is a torque release lever, wherein the torque release lever exerts torque to cooperate with the locking and unlocking mechanism to enable unlocking. [17] A battery changing device for replacing the battery pack on the electric vehicle, characterized by that the battery changing device comprises the unlocking device according to one of claims 1-16. [18] Battery changing device according to claim 17, characterized bythat the battery changing device further comprises a battery tray, wherein the battery tray is provided with a stadium-shaped hole and the battery tray is used to support the battery pack; wherein the unlocking device is provided below the battery tray and the unlocking device is used to unlock the battery pack through the stadium-shaped hole; Preferably, the release lever is provided with guide surfaces on both sides near the parallel surface of the stadium-shaped hole, or the guide surface is parallel to the parallel surface of the stadium-shaped hole. [19] Battery changing device according to claim 18, characterized by that the battery changing device further comprises a mounting component, wherein the mounting component is provided below the battery plate and the unlocking device is provided on the mounting component; preferably, the mounting components comprise the following: a body mounting plate, the body mounting plate serving to connect and fix the electric vehicle to the vehicle body; and a battery pack fixing plate, the battery pack fixing plate being for connecting and fixing to the battery pack, the unlocking device being installed on the body fixing plate or the battery pack fixing plate; Preferably, the battery pack fixing plate is provided above the body fixing plate, the release device is mounted on the body fixing plate, an escape groove is provided at one end of the battery pack fixing plate near the release device, the release device passes through the escape groove and is fixed to the body fixing plate. [20] A battery pack, characterized bythat the battery pack comprises the unlocking device according to one of claims 1 to 16.

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