Positioning unlocking device, battery replacement equipment and control method

Abstract

The present invention discloses a positioning unlocking device, a battery replacement device and a control method, wherein the positioning unlocking device comprises a first clamp and an ejection mechanism, wherein the ejection mechanism is connected to the first clamp, the first clamp is used to clamp the locking mechanism, and the ejection mechanism is used to lift the lock tongue in the locking groove to realize the unlocking operation of the locking mechanism. The battery replacement device comprises a plurality of positioning unlocking devices as described above. The control method comprises the following steps: S1, the first clamp clamps the lock base; S2, the battery replacement device controls the ejection of the ejection mechanism and lifts the lock tongue after receiving the clamping signal sent by the first position detection device; S3, the battery replacement device controls the retraction of the ejection mechanism. The present invention integrates the positioning, locking and unlocking functions, so that the positioning unlocking device has higher control stability for continuous actions, improves the positioning accuracy and the success rate of locking and unlocking, and improves the battery replacement efficiency.

Description

Technical Field

[0001] The invention relates to a positioning and unlocking device, a battery replacement device and a control method. Background Art

[0002] The existing battery pack installation methods of electric vehicles are generally divided into fixed and replaceable types. The fixed battery pack is generally fixed on the electric vehicle, and the electric vehicle is directly used as the charging object during charging. The replaceable battery pack is generally installed in a movable manner, and the battery pack can be removed and replaced with a new battery pack at any time.

[0003] At present, when replacing a new battery pack, the battery swapping equipment needs to use multiple positioning mechanisms to realize the positioning functions of the battery pack and the battery swapping bracket respectively. At the same time, the battery swapping equipment also needs to use a locking mechanism to realize the locking and unlocking operations of the locking mechanism. The loading and unloading between the battery pack and the battery swapping bracket is completed by the locking and unlocking operations of the locking mechanism; the specific structure of the existing locking mechanism is as follows Figure 1 As shown, the locking mechanism includes a lock base 1', a lock tongue 2' and a lock shaft 3' installed on the battery replacement bracket. The lock base 1' is provided with a locking groove 11' for the lock shaft 3' to be connected and fixed. The lock tongue 2' is rotated in the lock base 1' to complete the insertion or removal of the lock shaft 3' into the locking groove 3' of the lock base 1', thereby realizing the switching of the locking mechanism between the locked state and the unlocked state.

[0004] The battery swapping equipment replaces the battery pack on the electric vehicle. The battery swapping equipment and the battery swapping bracket on the vehicle chassis use positioning mechanisms and locking mechanisms to complete the positioning, unlocking, and locking actions during the battery swapping process. Since different mechanisms are independent of each other and handle various actions separately, there is a certain degree of instability in the actual continuous action control process, which causes the battery pack replacement to fail and the battery swapping efficiency to be low. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of certain instability in the existing battery pack during the replacement process, which causes the failure of battery pack replacement and low battery replacement efficiency, and to provide a positioning and unlocking device, battery replacement equipment and control method.

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

[0007] A positioning unlocking device is characterized in that it includes a first clamping member and an ejection mechanism, wherein the ejection mechanism is connected to the first clamping member, the first clamping member is used to clamp the locking mechanism, and the ejection mechanism is used to lift the locking tongue in the locking groove to realize the unlocking operation of the locking mechanism.

[0008] In the present solution, the above-mentioned structural form is adopted, and the positioning, locking and unlocking functions are realized through the integration of the first clamp and the ejection mechanism, so that the positioning and unlocking device has higher control stability over continuous actions, improves the positioning accuracy and the success rate of locking and unlocking, and improves the battery replacement efficiency.

[0009] Preferably, the first clamping member includes a clamping plate, the top end of the clamping plate has a positioning groove, the positioning groove is used to clamp the lock base, the side end of the lock base is provided with a channel connected to the locking groove, the ejection mechanism is located at the side end of the clamping plate, and the ejection rod of the ejection mechanism can pass through the channel and extend into the positioning groove to lift the lock tongue; alternatively, the ejection mechanism retracts outside the positioning groove.

[0010] Preferably, the first clamping member includes a clamping plate, the top end of the clamping plate has a positioning groove, the positioning groove is used to clamp the lock base, the ejection mechanism is located at the bottom end of the clamping plate, the ejection mechanism can extend from the bottom end of the positioning groove into the locking groove to lift the lock tongue; alternatively, the ejection mechanism retracts outside the positioning groove.

[0011] In this solution, the above-mentioned structural form is adopted, the lock base is clamped by the positioning groove, and the bottom of the lock base is against the bottom of the positioning groove to prevent the first clamping member from continuing to move upward. It has high safety, is easy to use, has a simple structure, and has high positioning accuracy.

[0012] Preferably, the first clamping member further includes a mounting plate, the clamping plate and the ejection mechanism are both connected to the mounting plate, and the ejection mechanism is connected to the clamping plate.

[0013] In this solution, the above-mentioned structural form is adopted to connect the clamping plate and the ejection mechanism to the mounting plate, which is convenient for installation and connection and easy for assembly and use.

[0014] Preferably, the card plate has a mounting groove, the ejection mechanism is arranged in the mounting groove, the card plate has a through hole, both ends of the through hole are respectively connected to the positioning groove and the mounting groove, and the ejection rod of the ejection mechanism is inserted into the through hole and can move in the through hole.

[0015] In this solution, the above-mentioned structural form is adopted, and the ejector rod of the ejector mechanism moves in the through hole. The through hole can play a guiding role, effectively avoiding the ejector rod of the ejector mechanism from being offset and misaligned during the telescopic movement, thereby greatly improving stability.

[0016] Preferably, both ends of the notch of the positioning groove have a first sliding guide portion;

[0017] And / or, the top end of the clamping plate has inwardly inclined second guide sliding portions on both sides in the thickness direction of the clamping plate.

[0018] In the present solution, the above-mentioned structural form is adopted, and the first guide slide portion has a guide slide function, which can ensure that the lock base is normally and smoothly inserted into the positioning groove and can be adjusted and corrected.

[0019] In addition, the second sliding guide portion has a sliding guide function, which can ensure that the card is inserted normally and smoothly into the gap between the battery pack and the battery replacement bracket, and can be adjusted and corrected.

[0020] Preferably, the ejection mechanism is an electromagnet mechanism, a cylinder or a hydraulic cylinder.

[0021] A battery replacement device is characterized in that it includes multiple positioning and unlocking devices as described above.

[0022] In this solution, the above-mentioned structural form is adopted, and the positioning, locking and unlocking functions are realized through multiple positioning and unlocking devices, so that the control stability of continuous actions is higher, the positioning accuracy and the success rate of locking and unlocking are improved, and the battery replacement efficiency is improved.

[0023] Preferably, the battery exchange equipment also includes a battery exchange platform, and a plurality of the positioning and unlocking devices are respectively arranged at intervals at both ends of the battery exchange platform along the length direction of the first clamp.

[0024] In this solution, the above-mentioned structural form is adopted, and the positioning, locking and unlocking functions are realized through multiple positioning and unlocking devices, so that the control stability of continuous actions is higher, the positioning accuracy and the success rate of locking and unlocking are improved, and the battery replacement efficiency is improved.

[0025] In the present scheme, the above-mentioned structural form is adopted, and the corresponding lock base is clamped by multiple positioning and unlocking devices to achieve multi-point positioning, thereby improving the positioning accuracy of the battery swapping equipment. Multi-reference positioning reduces deformation and improves the battery swapping efficiency of the battery swapping equipment. At the same time, multi-point independent locking improves the locking safety of the battery swapping equipment; and multi-point unlocking improves the unlocking success rate of the battery swapping equipment.

[0026] Preferably, the battery exchange platform includes a platform plate and two movable parts, the two movable parts are respectively arranged at the two ends of the top surface of the platform plate, and the bottom end of the movable part can move on the platform plate along the length direction of the first clamp, and the plurality of positioning and unlocking devices are respectively connected to the top end of the movable part.

[0027] In this solution, the above-mentioned structural form is adopted, and the movable part moves along the length direction of the first clamp on the platform plate, so that the battery pack can move along the length direction of the first clamp relative to the battery swap bracket, thereby realizing the locking and unlocking operations between the battery pack and the battery swap bracket.

[0028] Preferably, the battery exchange device also includes a second clamping member, which is fixedly connected to the top surface of the platform plate, and is used to clamp the battery pack to limit the relative movement of the battery pack along the length direction of the second clamping member.

[0029] In this solution, the above-mentioned structural form is adopted, the second clamping member clamps the battery pack, the first clamping member clamps the lock base, and the platform plate moves along the forward or backward direction of the battery pack, which can drive the battery pack to move forward or backward, thereby realizing the locking operation and unlocking operation between the battery pack and the battery replacement bracket.

[0030] Preferably, the second clamping member can abut against the moving member to limit the movement of the moving member.

[0031] In the present solution, the above-mentioned structural form is adopted, and the second clamping member can abut against the moving member, which can limit the excessive movement of the moving member, thereby ensuring that the moving member can be accurately moved into place and improving the stability of the battery exchange equipment.

[0032] A control method, characterized in that it comprises the following steps:

[0033] S1, the first clamping member clamps the lock base;

[0034] S2. After receiving the stuck signal sent by the first position detection device, the battery replacement device controls the ejection mechanism to eject and lift the lock tongue;

[0035] S3. The battery exchange device will control the retraction of the ejection mechanism.

[0036] In this solution, multi-point simultaneous positioning is achieved, which improves the security of unlocking and locking, and also improves the success rate of unlocking and locking.

[0037] Preferably, the first clamping member detects the specific position of the lock base through the first position detection device and detects whether it is locked in place through the first position detection device.

[0038] In this solution, the first position detection device is used to adjust and detect whether it is stuck in place, which greatly improves the success rate of unlocking and locking, and also improves the safety of unlocking and locking.

[0039] Preferably, the battery replacement device detects the specific position of the lock tongue through a second position detection device and detects whether it is lifted into place through the second position detection device, and the second position detection device sends a lift-in-place signal;

[0040] Alternatively, the first clamping member has a first limiting mechanism, which is used to abut against the ejection rod of the ejection mechanism to limit the ejection rod from transitioning upward, and the first limiting mechanism sends an ejection in place signal.

[0041] In this solution, the ejection mechanism is ensured to be ejected in place, the precision requirement is improved, and the locking mechanism is effectively prevented from being damaged or unable to be unlocked.

[0042] Preferably, the battery-swapping device drives the battery-swapping platform to move when receiving the jacking-in-place signal, so as to move the lock shaft backward.

[0043] Preferably, the battery replacement device detects the specific position of the lock shaft moving backward through a third position detection device and detects whether it has moved into place through the third position detection device;

[0044] Alternatively, the battery exchange device has a second limiting mechanism, which is used to abut and limit the backward transition movement of the lock shaft.

[0045] In this solution, the lock shaft is guaranteed to move backward into position, the precision requirement is improved, and the unlocking success rate is improved.

[0046] Preferably, step S4 is included after step S3, and step S4 is that the battery exchange device drives the battery pack to continue moving until the lock shaft disengages from the locking groove.

[0047] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0048] The positive and progressive effects of the present invention are:

[0049] The positioning and unlocking device, battery replacement equipment and control method of the present invention realize the positioning, locking and unlocking functions through the integration of the first clamp and the ejection mechanism, so that the positioning and unlocking device has higher control stability over continuous actions, improves the positioning accuracy and the success rate of locking and unlocking, and improves the battery replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a structural schematic diagram of the locking mechanism of the prior art.

[0051] Figure 2 It is a schematic diagram of the structure of the battery replacement equipment according to an embodiment of the present invention.

[0052] Figure 3 This is a schematic diagram of the structure of a positioning and unlocking device for a battery swapping device according to an embodiment of the present invention.

[0053] Figure 4 This is a schematic diagram of the structure of the positioning and unlocking device of the battery swapping equipment according to an embodiment of the present invention when it is stuck in place.

[0054] Figure 5This is a schematic structural diagram of the positioning and unlocking device of the battery swapping equipment according to an embodiment of the present invention when it is pushed out into place.

[0055] Figure 6 This is a schematic diagram of the structure of the positioning and unlocking device of the battery swapping equipment according to an embodiment of the present invention when it moves backward into position.

[0056] Figure 7 This is a schematic diagram of the structure of the positioning and unlocking device of the battery exchange equipment according to an embodiment of the present invention when it is retracted.

[0057] Figure 8 This is a schematic diagram of the structure of the positioning and unlocking device of the battery exchange equipment according to an embodiment of the present invention after being retracted.

[0058] Description of the prior art reference numerals:

[0059] Lock base 1'

[0060] Locking groove 11'

[0061] Lock tongue 2'

[0062] Lock shaft 3'

[0063] Description of the reference numerals of the embodiments:

[0064] First card 1

[0065] Card board 11

[0066] Positioning slot 111

[0067] The first guide slide 112

[0068] The second guide slide 113

[0069] Mounting plate 12

[0070] Ejector mechanism 2

[0071] Positioning unlocking device 10

[0072] Battery swap platform 20

[0073] Platform board 21

[0074] Moving parts 22

[0075] Second card 30

[0076] Battery replacement bracket 100

[0077] Locking mechanism 200

[0078] Lock base 201

[0079] Lock shaft 202

[0080] Lock tongue 203

[0081] Locking groove 204 DETAILED DESCRIPTION

[0082] The present invention will be described more clearly and completely below by way of embodiments in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments.

[0083] like Figures 2 to 8 As shown, an embodiment of the present invention discloses a battery swapping device, which includes a plurality of positioning and unlocking devices 10. The positioning and unlocking device 10 includes a first clamping member 1 and an ejection mechanism 2, the ejection mechanism 2 is connected to the first clamping member 1, the first clamping member 1 is used to clamp the locking mechanism 200, and the ejection mechanism 2 is used to lift the locking tongue 203 in the locking groove 204 to realize the unlocking operation of the locking mechanism 200.

[0084] When the battery swapping equipment is swapping batteries for a battery swapping vehicle, the lock base 201 on the battery swapping bracket 100 is clamped by the first clamp 1, and multiple positioning and unlocking devices 10 are simultaneously positioned through the first clamp 1; the locking tongue 203 in the locking groove 204 can be lifted up by the ejection mechanism 2, so that the locking shaft 202 can be moved out of the locking groove 204, thereby realizing the unlocking operation of the locking mechanism 200; conversely, when the locking shaft 202 needs to be locked by the locking tongue 203, the ejection mechanism 2 lifts the locking tongue 203 in the locking groove 204, and the locking shaft 202 will move into the locking groove 204, the ejection mechanism 2 retracts and no longer lifts the locking tongue 203, and the locking tongue 203 will prevent the locking shaft 202 from disengaging from the locking groove 204, thereby realizing the locking operation of the locking mechanism 200. The positioning and unlocking device 10 realizes the positioning, locking and unlocking functions through the integration of the first clamp 1 and the ejection mechanism 2, so that the positioning and unlocking device 10 has higher control stability over continuous actions, improves the positioning accuracy and the success rate of locking and unlocking, and improves the battery replacement efficiency of the battery replacement equipment.

[0085] In this embodiment, the locking groove 204 extends upward from the bottom of the lock base 201 in the vertical direction, and the locking groove 204 extends along the forward direction of the battery pack. The lock tongue 203 is swingably connected to the lock base 201 and can be inserted into the locking groove 204 to prevent the lock shaft 202 from escaping from the locking groove 204.

[0086] The first clamping member 1 includes a clamping plate 11, and a positioning groove 111 is provided at the top of the clamping plate 11. The positioning groove 111 is used to clamp the lock base 201. The ejection mechanism 2 is located at the bottom end of the clamping plate 11. The ejection mechanism 2 can extend from the bottom end of the positioning groove 111 into the locking groove 204 to lift the lock tongue 203; or, the ejection mechanism 2 retracts outside the positioning groove 111.

[0087] When the battery exchange device is positioned, the first clamp 1 moves upward, so that the positioning groove 111 clamps the lock base 201, and the bottom of the lock base 201 abuts against the bottom of the positioning groove 111 to prevent the first clamp 1 from continuing to move upward, which is highly safe, easy to use, and simple in structure; at the same time, multiple positioning unlocking devices 10 are respectively clamped and positioned on multiple lock bases 201, and the positioning accuracy is high. The ejection rod of the ejection mechanism 2 can extend upward and extend into the positioning groove 111, and the ejection rod of the ejection mechanism 2 can extend into the locking groove 204, so that the ejection rod of the ejection mechanism 2 lifts the lock tongue 203, thereby realizing the lock shaft 202 entering and exiting the locking groove 204. After the ejection mechanism 2 is lifted, the ejection rod of the ejection mechanism 2 can be retracted to the outside of the positioning groove 111, so that the lock tongue 203 returns to the initial state, that is, the lock tongue 203 is inserted into the locking groove 204.

[0088] In this embodiment, the location of the ejection mechanism 2 is not limited to the bottom end of the card plate 11. The ejection mechanism 2 can also be set at the side end of the card plate 11. The side end of the lock base 201 is provided with a channel connected to the locking groove 204. The ejection mechanism 2 is located at the side end of the card plate 11, and the ejection rod of the ejection mechanism 2 can pass through the channel and extend into the positioning groove 111 to lift the lock tongue 203; or, the ejection mechanism 2 retracts out of the positioning groove 111. The ejection rod of the ejection mechanism 2 is inserted into the positioning groove 111 through the side end of the card plate 11, and extends into the positioning groove 111 through the channel at the side end of the lock base 201, so that the ejection rod of the ejection mechanism 2 lifts the lock tongue 203, thereby realizing the lock shaft 202 entering and exiting the locking groove 204. Otherwise, the ejection rod of the ejection mechanism 2 will be retracted to the outside of the positioning groove 111 , so that the locking tongue 203 returns to the initial state, that is, the locking tongue 203 is inserted into the locking groove 204 .

[0089] The battery swapping device also includes a battery swapping platform 20, and a plurality of positioning and unlocking devices 10 are spaced apart at both ends of the battery swapping platform 20 along the length direction of the first clamp 1. A plurality of lock bases 201 are spaced apart and installed along the length direction of the battery swapping bracket 100 on both sides of the battery swapping bracket 100, and the plurality of lock bases 201 correspond to the plurality of positioning and unlocking devices 10 one by one. The corresponding lock bases 201 are clamped by the positioning and unlocking devices 10 to achieve multi-point positioning, thereby improving the positioning accuracy of the battery swapping device, and multi-reference positioning reduces deformation, thereby improving the battery swapping efficiency of the battery swapping device; at the same time, multi-point independent locking improves the locking safety of the battery swapping device; and multi-point unlocking improves the unlocking success rate of the battery swapping device.

[0090] The battery exchange platform 20 may include a platform plate 21 and two moving parts 22, the two moving parts 22 are respectively arranged at the two ends of the top surface of the platform plate 21, and the bottom end of the moving part 22 can move on the platform plate 21 along the length direction of the first card 1, and a plurality of positioning and unlocking devices 10 are respectively connected to the top of the moving part 22. The platform plate 21 can be raised and lowered, so that the positioning groove 111 clamps the lock base 201, and the moving part 22 moves on the platform plate 21 along the length direction of the first card 1. The moving part 22, the first card 1 and the lock base 201 will all be able to move relative to the platform plate 21 along the length direction of the first card 1. The platform plate 21 is used to place a battery pack, so that the battery pack can move relative to the battery exchange bracket 100 along the length direction of the first card 1, thereby realizing the locking and unlocking operations between the battery pack and the battery exchange bracket 100.

[0091] The battery swapping device also includes a second clamp 30, which is fixedly connected to the top surface of the platform plate 21. The second clamp 30 is used to clamp the battery pack to limit the relative movement of the battery pack along the length direction of the second clamp 30. The second clamp 30 clamps the battery pack, the first clamp 1 clamps the lock base 201, and the platform plate 21 moves along the forward or backward direction of the battery pack, which can drive the battery pack to move forward or backward. Since the battery swap bracket 100 is fixed to the battery swap vehicle, the battery swap bracket 100, the first clamp 1 and the moving part 22 are relatively stationary, and the moving part 22 moves on the platform plate 21, thereby realizing the locking and unlocking operations between the battery pack and the battery swap bracket 100. Among them, the platform plate 21 is on the same straight line as the length direction of the first clamp 1 along the forward or backward direction of the battery pack.

[0092] The second clamping member 30 can abut against the moving member 22 to limit the movement of the moving member 22. The moving member 22 can move relatively on the platform plate 21, and the second clamping member 30 is connected to the platform plate 21 and is in a stationary state relative to the platform plate 21. The second clamping member 30 can abut against the moving member 22 to limit the transitional movement of the moving member 22, thereby ensuring that the moving member 22 can move accurately into position and improving the stability of the battery exchange device.

[0093] The first clamping member 1 may further include a mounting plate 12, the clamping plate 11 and the ejection mechanism 2 are both connected to the mounting plate 12, and the ejection mechanism 2 is connected to the clamping plate 11. The mounting plate 12 is provided with a plurality of connection holes, and the first clamping member 1 is used on the moving member 22 through the plurality of connection holes, and the clamping plate 11 and the ejection mechanism 2 are both connected to the mounting plate 12, which is convenient for installation and connection, and convenient for assembly and use.

[0094] The card plate 11 has a mounting groove, and the ejection mechanism 2 is arranged in the mounting groove. The card plate 11 has a through hole, and the two ends of the through hole are respectively connected to the positioning groove 111 and the mounting groove. The ejection rod of the ejection mechanism 2 is inserted into the through hole and can move in the through hole. The ejection rod of the ejection mechanism 2 moves in the through hole, and the through hole can play a guiding role, which effectively avoids the ejection rod of the ejection mechanism 2 from being offset and dislocated during the telescopic movement, greatly improving the stability of the battery exchange equipment.

[0095] Both ends of the slot of the positioning slot 111 have a first guide slide 112. The first guide slide 112 has a sliding guide function. When the positioning and unlocking device 10 positions the battery swapping vehicle, it uses the first guide slide 112 as a guide to ensure that the lock base 201 is inserted into the positioning slot 111 normally and smoothly, and can be adjusted and corrected.

[0096] The top of the card plate 11 has a second guide slide 113 that is cut inward on both sides in the thickness direction of the card plate 11. The second guide slide 113 has a guide function. When the lock shaft 202 on the battery pack is connected to the lock base 201 of the battery swap bracket 100, the gap between the outer wall of the battery pack and the inner wall of the battery swap bracket 100 is small. After using the second guide slide 113 as a guide, it can ensure that the card plate 11 is inserted into the gap between the battery pack and the battery swap bracket 100 normally and smoothly, and can be adjusted and corrected. Among them, the ejection mechanism 2 is an electromagnet mechanism, a cylinder or a liquid cylinder.

[0097] This embodiment also discloses a control method, which realizes unlocking and locking operations with a battery swapping vehicle by using the battery swapping device as described above. The control method comprises the following steps:

[0098] Step 100 : The first clamping member 1 clamps the lock base 201 .

[0099] In this step, the first clamping members 1 of the plurality of positioning and unlocking devices 10 respectively clamp the corresponding lock bases 201 to achieve multi-point simultaneous positioning, thereby improving the unlocking security and the unlocking success rate.

[0100] Before the first card 1 is stuck in position with the lock base 201, there may be an adjustment link to achieve positioning. The first card 1 can detect the specific position of the lock base 201 through the first position detection device and detect whether it is stuck in place through the first position detection device. The first position detection device is used to detect the specific position of the lock base 201 and transmit the acquired position to the battery swapping device. The position of the first card 1 is adjusted through the battery swapping platform 20 of the battery swapping device, so that the positioning groove 111 of the first card 1 can be aligned with the lock base 201 to achieve accurate stuck positioning. At the same time, when the positioning unlocking device 10 is stuck in place, the first position detection device can detect the specific position of the lock base 201 to the battery swapping device, and judge whether it is stuck in place by the position between the first card 1 and the lock base 201. When it is stuck in place, the battery swapping device will stop adjusting the position of the first card 1.

[0101] Step 200: After receiving the jamming signal sent by the first position detection device, the battery exchange device controls the ejection of the ejection mechanism 2 and lifts the locking tongue 203.

[0102] In this step, after being stuck in place, the first position detection device sends a stuck signal to the battery exchange device. After receiving the stuck signal, the battery exchange device will control the ejection mechanism 2, and the ejection rod of the ejection mechanism 2 will be inserted into the locking groove 204 to lift the lock tongue 203. When the positioning unlocking device 10 is ejected into place, the lock tongue 203 no longer blocks the lock shaft 202, and the lock shaft 202 can be separated from the locking groove 204.

[0103] In this embodiment, the lock shaft 202 will abut against the notch of the lock tongue 203 in the locking groove 204. After being stuck in place, the first position detection device sends a stuck signal to the battery replacement device, and the platform plate 21 moves along the forward direction of the battery pack, causing the battery pack to move forward, that is, in the attached Figure 4 The middle lock shaft 202 will move to the right, so that there is a gap between the lock shaft 202 and the lock tongue 203, so that the subsequent lock tongue 203 can be lifted up.

[0104] When the ejection mechanism 2 is ejected into place, it can ensure that the lock shaft 202 is disengaged from the locking groove 204. When the ejection mechanism 2 is not ejected into place, the locking mechanism 200 will be damaged or cannot be unlocked. In order to determine whether the ejection mechanism 2 is ejected into place, the battery swapping device can detect the specific position of the lock tongue 203 through the second position detection device and detect whether it is ejected into place through the second position detection device, and the second position detection device sends a push-in signal. The specific position of the lock tongue 203 is detected by the second position detection device to determine whether the lock tongue 203 still blocks the lock shaft 202 and whether the lock tongue 203 is lifted up in transition. After being lifted into place, the second position detection device sends the detected push-in signal to the battery swapping device, and the battery swapping device receives the push-in signal and determines that the lock tongue 203 is lifted into place, which greatly improves the safety and stability of the positioning unlocking device 10. After being ejected into place, the second position detection device sends a push-in signal to the battery swapping device, and the battery swapping device is used to realize the unlocking operation of the battery pack.

[0105] The second position detection device may not be needed to determine whether the ejection mechanism 2 is ejected in place. The first clamp 1 may have a first limiting mechanism, which is used to abut against the ejection rod of the ejection mechanism 2 to limit the ejection rod from extending upward, and the first limiting mechanism sends a signal of ejection in place. The first limiting mechanism plays a limiting role. The first limiting mechanism can prevent the ejection rod of the ejection mechanism 2 from moving upward, so that the ejection rod of the ejection mechanism 2 will not extend excessively, and the lock tongue 203 is prevented from being ejected excessively; at the same time, the ejection rod of the ejection mechanism 2 abuts against the first limiting mechanism, and the lock tongue 203 no longer blocks the lock shaft 202 from leaving the locking groove 204. After the ejection is in place, the first limiting mechanism sends a signal of ejection in place to the battery exchange device, and the battery exchange device is used to realize the unlocking operation of the battery pack.

[0106] After the battery is ejected into place, the battery swapping device drives the battery swapping platform 20 to move when receiving the ejection signal, so that the lock shaft 202 moves backward. The battery swapping platform 20 will move in the backward direction of the battery pack, so that the battery pack moves backward, and at the same time drives the lock shaft 202 to move backward, so that the lock shaft 202 is out of the locking groove 204.

[0107] In this embodiment, the ejection rod of the ejection mechanism 2 will be inserted into the locking groove 204 and push the locking tongue 203 upward. Since the ejection rod of the ejection mechanism 2 is located in the locking groove 204, the lock shaft 202 cannot completely pass through the locking tongue 203 and the vertical part in the locking groove 204. The lock shaft 202 will move backward and disengage from the stuck obstruction of the lock tongue 203, so that the subsequent lock shaft 202 can smoothly disengage from the locking groove 204.

[0108] Whether the ejection mechanism 2 needs to be retracted requires judging whether the lock shaft 202 is out of the stuck block of the lock tongue 203. In order to judge whether the lock shaft 202 is out of the stuck block of the lock tongue 203, the battery exchange device can detect the specific position of the lock shaft 202 moving backward through the third position detection device and detect whether it is moved into place through the third position detection device. The specific position of the lock shaft 202 is detected by the third position detection device to judge whether the lock shaft 202 is out of the stuck block of the lock tongue 203, thereby ensuring the accuracy of the positioning unlocking device 10. The third position detection device will detect the specific position signal of the lock shaft 202 and send it to the battery exchange device. The battery exchange device will receive the specific position signal and judge whether the lock shaft 202 has moved backward into place. After moving backward into place, the battery exchange device will realize the unlocking operation of the battery pack. Among them, the first position detection device, the second position detection device and the third position detection device can all be positioners, sensors, etc.

[0109] The third position detection device may not be used to determine whether the lock shaft 202 has moved backward into position. The battery swap device may be provided with a second limiting mechanism, which is used to abut against and limit the lock shaft 202 from transitioning backward. The second limiting mechanism plays a limiting role. The second limiting mechanism can prevent the lock shaft 202 from moving backward, so that the lock shaft 202 will not move backward in a transitional manner, thereby avoiding damage to the lock tongue 203. At the same time, the second limiting mechanism can abut against the battery swap platform 20, the battery pack or the lock shaft 202 to prevent the lock shaft 202 from transitioning backward. At this time, the lock tongue 203 no longer blocks the lock shaft 202 from escaping from the locking groove 204. After moving backward into position, the second limiting mechanism will be subjected to abutting force and send a signal to the battery swap device, and the unlocking operation of the battery pack is realized through the battery swap device.

[0110] Step 300: The battery swapping device controls the ejection mechanism 2 to retract.

[0111] In this step, the ejection rod of the ejection mechanism 2 will be retracted to the outside of the locking groove 204, and will no longer block the lock shaft 202 from escaping from the locking groove 204, thereby ensuring the unlocking operation.

[0112] When the positioning unlocking device 10 is retracted, the ejection rod of the ejection mechanism 2 no longer abuts against the lock tongue 203, so that the lock tongue 203 returns to its original state under the action of the spring, so that the lock tongue 203 swings downward, and the bottom of the lock tongue 203 abuts against the top of the lock shaft 202.

[0113] Step 400 is included after step 300. In step 400, the battery swapping device drives the battery pack to continue to move until the lock shaft 202 is out of the locking groove 204. After the ejection rod of the ejection mechanism 2 is retracted, the battery swapping device will drive the battery pack and the lock shaft 202 to continue to move backward, so that the lock shaft 202 is completely out of the stuck abutment of the lock tongue 203, and the unlocking operation is completed; after the unlocking is completed, the battery swapping device will drive the battery pack and the lock shaft 202 to move downward, and the battery pack is removed from the battery swapping bracket 100. Otherwise, the locking operation is achieved.

[0114] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A positioning and unlocking device, characterized in that: It comprises a first clamping member and an ejection mechanism, wherein the ejection mechanism is connected to the first clamping member, the first clamping member is used to clamp the locking mechanism, and the ejection mechanism is used to lift the locking tongue in the locking groove to realize the unlocking operation of the locking mechanism; The first clamping member includes a clamping plate, the top of the clamping plate has a positioning groove, the positioning groove is used to clamp the lock base, the ejection mechanism extends into the positioning groove to lift the lock tongue; otherwise, the ejection mechanism retracts out of the positioning groove; The card plate has a mounting groove, and the ejection mechanism is arranged in the mounting groove; The ejection mechanism is an electromagnet mechanism, a cylinder or a liquid cylinder.

2. The positioning and unlocking device according to claim 1, characterized in that: A channel connected to the locking groove is opened at the side end of the lock base, the ejection mechanism is located at the side end of the clamping plate, and the ejection rod of the ejection mechanism can pass through the channel and extend into the positioning groove to lift the lock tongue; otherwise, the ejection mechanism retracts out of the positioning groove.

3. The positioning and unlocking device according to claim 1, characterized in that: The ejection mechanism is located at the bottom end of the clamping plate, and can extend from the bottom end of the positioning groove into the locking groove to lift up the locking tongue; otherwise, the ejection mechanism retracts out of the positioning groove.

4. The positioning and unlocking device according to claim 2 or 3, characterized in that: The first clamping member also includes a mounting plate, the clamping plate and the ejection mechanism are both connected to the mounting plate, and the ejection mechanism is connected to the clamping plate.

5. The positioning and unlocking device according to claim 4, characterized in that: The clamping plate has a through hole in it, and two ends of the through hole are respectively connected with the positioning groove and the mounting groove. The ejection rod of the ejection mechanism is inserted into the through hole and can move in the through hole.

6. The positioning unlocking device according to claim 2 or 3, characterized in that: Both ends of the notch of the positioning groove are provided with a first sliding guide portion; And / or, the top end of the clamping plate has inwardly inclined second guide sliding portions on both sides in the thickness direction of the clamping plate.

7. A battery replacement device, characterized in that: It comprises a plurality of positioning and unlocking devices as described in any one of claims 1-6.

8. The battery replacement device according to claim 7, characterized in that: The battery exchange equipment also includes a battery exchange platform, and a plurality of positioning and unlocking devices are respectively arranged at intervals at both ends of the battery exchange platform along the length direction of the first clamp.

9. The battery replacement device according to claim 8, characterized in that: The battery exchange platform includes a platform plate and two movable parts, the two movable parts are respectively arranged at the two ends of the top surface of the platform plate, and the bottom end of the movable part can move on the platform plate along the length direction of the first clamp, and the plurality of positioning and unlocking devices are respectively connected to the top end of the movable part.

10. The battery replacement device according to claim 9, characterized in that: The battery exchange device also includes a second clamping member, which is fixedly connected to the top surface of the platform plate, and the second clamping member is used to clamp the battery pack to limit the relative movement of the battery pack along the length direction of the second clamping member.

11. The battery replacement device according to claim 10, characterized in that: The second clamping member can abut against the moving member to limit the movement of the moving member.

12. A control method, characterized in that: The unlocking and locking operations with the battery swapping vehicle are realized by utilizing the battery swapping device as described in any one of claims 7 to 11, and the control method comprises the following steps: S1, the first clamping member clamps the lock base; S2. After receiving the stuck signal sent by the first position detection device, the battery replacement device controls the ejection mechanism to eject and lift the lock tongue; S3. The battery exchange device will control the retraction of the ejection mechanism.

13. The control method according to claim 12, characterized in that: The first clamping member detects the specific position of the lock base through the first position detection device and detects whether it is locked in place through the first position detection device.

14. The control method according to claim 12, characterized in that: The battery replacement device detects the specific position of the lock tongue through the second position detection device and detects whether it is pushed into place through the second position detection device, and the second position detection device sends a push-in-place signal; Alternatively, the first clamping member has a first limiting mechanism, which is used to abut against the ejection rod of the ejection mechanism to limit the ejection rod from transitioning upward, and the first limiting mechanism sends an ejection-in-place signal.

15. The control method according to claim 14, characterized in that: When receiving the jacking-in-place signal, the battery-swapping device drives the battery-swapping platform to move so that the lock shaft moves backward.

16. The control method according to claim 15, characterized in that: The battery replacement device detects the specific position of the lock shaft moving backward through the third position detection device and detects whether it has moved into place through the third position detection device; Alternatively, the battery exchange device has a second limiting mechanism, which is used to abut and limit the backward transition movement of the lock shaft.

17. The control method according to claim 12, characterized in that: Step S4 is included after step S3, and step S4 is that the battery replacement device drives the battery pack to continue moving until the lock shaft is out of the locking groove.

Images