Lifting driving mechanism of battery replacing device and battery replacing device comprising lifting driving mechanism

Abstract

The utility model relates to a lifting driving mechanism of a battery replacing device and the battery replacing device comprising the lifting driving mechanism, the lifting driving mechanism comprises a main body, the main body comprises a driving part, a transmission rod, a first transmission part and a second transmission part, the driving part is connected with the transmission rod, the driving part is used for driving the transmission rod to enable the transmission rod to rotate around the axial direction of the transmission rod, and the first transmission part is connected with the second transmission part. The first transmission part and the second transmission part can move in the first direction relative to the transmission rod, and the second transmission part is matched with a lifting arm of a lifting mechanism so that an unlocking mechanism connected to the upper end of the lifting arm can ascend and descend. The second transmission part can generate offset in the first direction and / or the second direction relative to the first transmission part, the battery replacing device comprises the lifting driving mechanism, the assembly difficulty is lowered, the maintenance frequency is reduced, and the service life of the battery replacing device can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of battery replacement, and in particular to a lifting drive mechanism of a battery replacement device and a battery replacement device containing the same. Background Art

[0002] Battery swapping is one of the important means of replenishing energy for new energy vehicles. It can achieve efficient energy replenishment and can standardize the management of replaced battery packs to extend the service life of the battery packs. The battery swapping device usually needs to be raised and lowered relative to the vehicle to achieve locking and unlocking of the battery pack on the vehicle. Therefore, the stability of the lifting movement directly affects the efficiency of battery swapping.

[0003] If the lifting drive mechanism of the battery swap device is not assembled accurately enough, it is easy for the lifting to be inadequate or unstable during the battery swap process, which increases the number and investment costs of subsequent maintenance and repairs, and causes unnecessary bumps and collisions in the battery pack during installation and disassembly, affecting the service life of the battery pack. In severe cases, it may even cause the battery swap to fail. Utility Model Content

[0004] In view of this, the purpose of the present utility model is to provide a lifting drive mechanism for a battery exchange device and a battery exchange device containing the same, which can reduce the requirements for installation accuracy, avoid the problems of easy damage and increased maintenance times caused by insufficient installation accuracy, extend the service life, and ensure battery exchange efficiency.

[0005] The utility model provides a lifting drive mechanism of a battery exchange device, including a main body, wherein the main body includes a driving member, a transmission rod, a first transmission member and a second transmission member, the driving member is connected to the transmission rod, and the driving member is used to drive the transmission rod so that the transmission rod can rotate around its own axis, the first transmission member and the second transmission member can move along the first direction relative to the transmission rod, the second transmission member cooperates with the lifting arm of the lifting mechanism to make the unlocking mechanism connected to the upper end of the lifting arm rise and fall, and the second transmission member can generate an offset in the first direction and / or the second direction relative to the first transmission member.

[0006] In one embodiment, the first transmission member and the second transmission member are connected through a fixing assembly, and the fixing assembly includes a limit seat and a clamping seat, the limit seat is connected to the first transmission member, and the clamping seat is connected to the second transmission member, the clamping seat includes a functional groove, the limit seat is accommodated in the functional groove, and a movable gap is provided between the limit seat and the groove wall of the functional groove in the first direction and / or the second direction.

[0007] In one embodiment, the coupling seat includes a push plate and a card plate, the push plate is sleeved on the transmission rod and can move relative to the transmission rod along the first direction, the two card plates are spaced apart in the second direction and are connected to the push plate along the first direction, a stopper is protruded on the side of the two card plates close to each other in the second direction, and the stopper is located on the side of the card plate away from the push plate in the first direction, and the push plate, the two card plates and the stopper cooperate to form the functional groove.

[0008] In one embodiment, the two stoppers cooperate to form a first accommodating groove, the push plate, the two clamping plates and the two stoppers cooperate to form a second accommodating groove, the first accommodating groove and the second accommodating groove are connected along the first direction, the limit seat includes a first limit member and a second limit member, the first limit member and the second limit member are connected along the first direction, and the two ends of the second limit member in the second direction protrude from the two ends of the first limit member in the second direction, the first limit member is accommodated in the first accommodating groove, and the second limit member is accommodated in the second accommodating groove.

[0009] In one embodiment, a first gap is provided between the second accommodating groove and the second limiting member in the first direction, and / or a second gap is provided between the second accommodating groove and the second limiting member in the second direction, and a third gap is provided between the first accommodating groove and the first limiting member in the second direction.

[0010] In one embodiment, the first transmission member includes a sleeve and a mounting member, the sleeve and the mounting member are connected along a first direction, the sleeve and the mounting member are both sleeved on the transmission rod and movably connected to the transmission rod, and the mounting member is connected to the limit seat.

[0011] In one embodiment, the limiting seat includes a sleeve hole and a mounting groove, the sleeve hole passes through the first limiting member and the second limiting member along a first direction, the sleeve is accommodated in the sleeve hole, the mounting groove is opened at an end of the second limiting member away from the first limiting member, and the mounting member is accommodated in the mounting groove.

[0012] In one embodiment, the second transmission member includes a pushing arm connected to the push plate, the two pushing arms are spaced apart in the second direction, and are connected to the push plate along the first direction, the pushing arm is provided with a lifting slope at one end away from the push plate, and the height dimension of the lifting slope close to the push plate in the first direction is greater than the height dimension of the lifting slope away from the push plate in the first direction.

[0013] In one embodiment, a lifting mechanism is further included, wherein the lifting mechanism includes a guide rail and the lifting arm, the lifting arm includes a first connecting arm and a second connecting arm cross-connected, and a lifting wheel, the first connecting arm and the second connecting arm are movably connected through the lifting wheel, the first connecting arm and the pushing arm are slidably arranged on the guide rail, and the lifting inclined surface cooperates with the lifting wheel to raise and lower the unlocking mechanism connected to the upper end of the lifting arm.

[0014] The present utility model also proposes a battery exchange device, including the lifting drive mechanism of the above-mentioned battery exchange device, and also including an unlocking mechanism, wherein the unlocking mechanism is connected to the upper end of the lifting arm, and the lifting arm can make the unlocking mechanism rise and fall in a third direction, and the unlocking mechanism is used to unlock the battery pack from the vehicle, or to lock the battery pack to the vehicle.

[0015] The beneficial effects of the lifting drive mechanism of the battery swap device proposed in this utility model are:

[0016] By configuring the second transmission member to be able to generate an offset in the first direction and / or the second direction relative to the first transmission member, the first transmission member and the second transmission member are not rigidly connected, so that there is a certain floating space between the first transmission member and the second transmission member. When installing the transmission rod, high precision is not required, and there is no need to maintain a good parallelism between the axial direction of the transmission rod and the lifting arm in the first direction. Even if there is an installation error in the transmission rod during installation, the second transmission member will not produce lateral extrusion on the transmission rod, thereby avoiding the problem that the transmission rod is easily damaged due to radial pressure from the second transmission member, extending the service life of the main body, and helping to improve the lifting stability of the lifting arm.

[0017] The beneficial effects of the battery replacement device proposed in this utility model are:

[0018] It avoids the problem of easy damage to the battery swap device due to low installation accuracy, reduces the difficulty of assembly, and reduces the number of maintenance times, which is beneficial to extending the service life of the battery swap device, improving the battery swap efficiency, and has good practicality and economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of a battery replacement device according to an embodiment of the present invention;

[0021] Figure 2This is a schematic structural diagram of the main body of an embodiment of the present utility model;

[0022] Figure 3 A top view of a fixing assembly according to an embodiment of the present invention;

[0023] Figure 4 This is an exploded schematic diagram of the main body of an embodiment of the present utility model;

[0024] Figure 5 This is a structural diagram of the clamping seat and the second transmission member in one embodiment of the present utility model;

[0025] Figure 6 This is a structural diagram of a lifting mechanism according to an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the overall structure of a battery replacement device according to an embodiment of the present invention.

[0027] In the picture:

[0028] 10-main body; 11-driving member; 111-coupling; 112-first bearing seat; 113-second bearing seat; 12-transmission rod; 13-first transmission member; 131-sleeve; 132-mounting member; 1321-first mounting hole; 1322-second mounting hole; 14-second transmission member; 141-pushing arm; 1411-mounting flange; 142-lifting ramp; 143-driving plate; 144-first support seat ;15-limiting seat;151-first limiting member;152-second limiting member;153-sleeve hole;154-mounting slot;155-first matching hole;16-clamping seat;1601-first accommodating slot;1602-second accommodating slot;S1-first gap;S2-second gap;S3-third gap;161-push plate;1611-second matching hole;162-clamping plate;163-stopper;164-mounting plate;

[0029] 20-lifting mechanism; 200-base plate; 201-guide rail; 2011-slide; 202-rack; 203-support rail; 21-lifting arm; 211a-first connecting arm; 211b-second connecting arm; 212-lifting wheel; 213-connecting rod; 214-second supporting seat; 215-support rail; 22-power unit; 221-driving source; 222-gear; 223-traveling wheel; 30-unlocking mechanism; 31-support plate; 32-support member; 33-positioning member; 34-unlocking member. DETAILED DESCRIPTION

[0030] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the description of the present invention, all other embodiments derived by persons of ordinary skill in the art without inventive effort are also within the scope of protection of the present invention.

[0031] Unless otherwise specified or limited, the terms "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms based on the specific circumstances.

[0032] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the utility model.

[0033] The terms "first," "second," "third," etc. are merely used to distinguish elements of similar nature and do not indicate or imply relative importance or a particular order.

[0034] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0035] As attached Figure 1 As shown in the coordinate system in , for ease of understanding, the X-axis direction is defined as the first direction, the Y-axis direction is defined as the second direction, and the Z-axis direction is defined as the third direction. The third direction is the up-down direction, and the direction indicated by the arrow is upward. This coordinate system is intended to illustrate the general positional relationship, connection relationship, or motion relationship of various components. It does not mean that the components of the present invention must be arranged or connected strictly according to this coordinate system. Those skilled in the art may flexibly adjust it according to actual needs.

[0036] Combined with attachment Figure 1 and attached Figure 2The lifting drive mechanism of the battery exchange device proposed in the present invention includes a main body 10, which includes a driving member 11, a transmission rod 12, a first transmission member 13 and a second transmission member 14. The driving member 11 is connected to the transmission rod 12 and is used to drive the transmission rod 12 so that the transmission rod 12 can rotate around its own axis. The transmission rod 12 extends along a first direction. The first transmission member 13 can be movably installed on the transmission rod 12 and can move relative to the transmission rod 12 in the first direction. The second transmission member 14 can move relative to the transmission rod 12 in the first direction with the first transmission member 13. The second transmission member 14 is used to cooperate with the lifting arm 21 of the lifting mechanism 20 so that the unlocking mechanism 30 connected to the upper end of the lifting arm 21 can perform a lifting movement. The second transmission member 14 can generate an offset in the first direction and / or the second direction relative to the first transmission member 13.

[0037] By configuring the second transmission member 14 to be able to generate an offset in the first direction and / or the second direction relative to the first transmission member 13, the first transmission member 13 and the second transmission member 14 are not rigidly connected, so that there is a certain floating space between the first transmission member 13 and the second transmission member 14. When installing the transmission rod 12, high precision is not required, and there is no need to maintain a good parallelism between the axial direction of the transmission rod 12 and the lifting arm 21 in the first direction. Even if there is an installation error in the transmission rod 12 during installation, the second transmission member 14 will not cause lateral extrusion on the transmission rod 12, thereby avoiding the problem that the transmission rod 12 is easily damaged due to the radial pressure from the second transmission member 14, extending the service life of the main body 10, and helping to improve the lifting stability of the lifting arm 21.

[0038] Exemplarily, the driving member 11 is a motor.

[0039] Exemplarily, the transmission rod 12 is a lead screw, and the first transmission member 13 is a lead screw nut.

[0040] Exemplarily, the driving member 11 and the transmission rod 12 are connected via a coupling 111 .

[0041] For example, in conjunction with Figure 2 and attached Figure 4 The main body 10 also includes a first bearing seat 112 and a second bearing seat 113. The first bearing seat 112 and the second bearing seat 113 are distributed along the first direction and are used to support the transmission rod 12. The transmission rod 12 can rotate around its own axis relative to the first bearing seat 112 and the second bearing seat 113. The driving member 11 is fixedly installed on the first bearing seat 112.

[0042] In one example, the first transmission member 13 and the second transmission member 14 are connected via a fixing assembly, as shown in the attached Figure 2As shown, the fixing assembly includes a limit seat 15 and a clamping seat 16. The limit seat 15 is connected to the first transmission member 13, and the clamping seat 16 is connected to the second transmission member 14. The clamping seat 16 includes a functional groove for accommodating the limit seat 15. The limit seat 15 is installed in the functional groove. A movable gap is provided between the limit seat 15 and the groove wall of the functional groove in the first direction and / or the second direction. The setting of the movable gap allows the second transmission member 14 to move in the first direction and / or the second direction relative to the first transmission member 13.

[0043] As attached Figure 4 As shown, the first transmission member 13 includes a sleeve 131 and a mounting member 132. The mounting member 132 is connected to the sleeve 131 along a first direction, and the outer contour of the positive projection of the sleeve 131 in the first direction is located within the outer contour of the positive projection of the mounting member 132 in the first direction. The sleeve 131 and the mounting member 132 are both sleeved on the transmission rod 12 and movably connected to the transmission rod 12. The mounting member 132 is used to connect to the limit seat 15.

[0044] Exemplarily, the mounting member 132 and the sleeve 131 are integrally formed.

[0045] Exemplarily, the first transmission member 13 and the limiting seat 15 are detachably connected by screw connection.

[0046] In one example, in conjunction with Figure 3 and attached Figure 5 The clamping seat 16 includes a push plate 161 and a clamping plate 162. The push plate 161 is sleeved on the transmission rod 12 and can move relative to the transmission rod 12 in the first direction. The two clamping plates 162 are spaced apart in the second direction and are connected to the push plate 161 along the first direction. A stopper 163 is provided at one end of the two clamping plates 162 close to each other in the second direction. The stopper 163 is located on the side of the clamping plate 162 away from the push plate 161 in the first direction. The push plate 161, the two clamping plates 162 and the stopper 163 cooperate to form the above-mentioned functional groove. The push plate 161 and the stopper 163 cooperate to prevent the limit seat 15 from falling out of the functional groove in the first direction. The two clamping plates 162 cooperate to prevent the limit seat 15 from falling out of the functional groove in the second direction.

[0047] Exemplarily, the stopper 163 is protruded from one end of the clamping plate 162 away from the pushing plate 161 in the first direction.

[0048] Exemplarily, the number of the blocking member 163 is set to one, which is protruded on one of the clamping plates 162 .

[0049] Exemplarily, the number of the blocking members 163 is set to two, which are respectively protruded on the two clamping plates 162.

[0050] Exemplarily, the stopper 163 and the clamping plate 162 are integrally formed.

[0051] For example, the clamping plate 162 and the push plate 161 are detachably connected by screwing, which makes it convenient to set the position of the clamping plate 162 according to the specifications of the limit seat 15 to adjust the size of the functional slot, and then adjust the movable gap between the limit seat 15 and the functional slot. It can be adjusted according to assembly requirements, is easy to operate, and has strong flexibility.

[0052] In one alternative, if Figure 5 As shown, the clamping plate 162 is provided with a mounting plate 164 at one end close to the push plate 161. The mounting plate 164 is vertically connected to the clamping plate 162, and the clamping plate 162 is screwed to the push plate 161 through the mounting plate 164. Optionally, the mounting plate 164 and the clamping plate 162 are integrally formed.

[0053] Since the size of the movable gap between the card plate 162 and the limit seat 15 will change when the second transmission member 14 is offset along the first direction and / or the second direction relative to the first transmission member 13, if the installation of the card plate 162 is unstable, it will cause force to be generated between the card plate 162 and the limit seat 15, thereby affecting the transmission of the first transmission member 13 and the transmission rod 12. Therefore, the structural stability of the card plate 162 can be increased by installing the plate 164.

[0054] As attached Figure 5 As shown, the two stops 163 cooperate to form a first accommodating groove 1601 in the second direction, the push plate 161, the two clamping plates 162 and the two stops 163 cooperate to form a second accommodating groove 1602, and the first accommodating groove 1601 and the second accommodating groove 1602 are connected along the first direction. It can be understood that the width dimension of the second accommodating groove 1602 in the second direction is greater than the width dimension of the first accommodating groove 1601 in the second direction.

[0055] In one example, the limiting seat 15 is accommodated in the second accommodating groove 1602 , and the first accommodating groove 1601 can prevent the limiting seat 15 from escaping from the second accommodating groove 1602 in the first direction.

[0056] In another example, in conjunction with Figure 3 and attached Figure 4 The limiting seat 15 includes a first limiting member 151 and a second limiting member 152. The first limiting member 151 and the second limiting member 152 are connected along the first direction. The width of the second limiting member 152 in the second direction is greater than the width of the first limiting member 151 in the second direction, and the two ends of the second limiting member 152 in the second direction protrude from the two ends of the first limiting member 151 in the second direction. The first limiting member 151 is accommodated in the first accommodating groove 1601, and the second limiting member 152 is accommodated in the second accommodating groove 1602.

[0057] As attached Figure 3As shown, the above-mentioned movable gap includes a first gap S1, and / or a second gap S2 and a third gap S3, the length dimension of the second accommodating groove 1602 in the first direction is greater than the length dimension of the second limiting member 152 in the first direction, a first gap S1 is provided between the second accommodating groove 1602 and the second limiting member 152 in the first direction, and / or the width dimension of the second accommodating groove 1602 in the second direction is greater than the width dimension of the second limiting member 152 in the second direction, a second gap S2 is provided between the second accommodating groove 1602 and the second limiting member 152 in the second direction, and a third gap S3 is provided between the first accommodating groove 1601 and the first limiting member 151 in the second direction. The setting of the first gap S1, and / or the second gap S2 and the third gap S3 enables the clamping seat 16 and the limiting seat 15 to have floating space in the first direction and / or the second direction.

[0058] Exemplarily, the second gap S2 is equal to the third gap S3.

[0059] For example, as shown in the attached Figure 4 As shown, the limiting seat 15 includes a sleeve hole 153 and a mounting groove 154. The sleeve hole 153 passes through the first limiting member 151 and the second limiting member 152 along the first direction, and the sleeve hole 153 cooperates with the sleeve 131. The sleeve 131 is accommodated in the sleeve hole 153. The limiting seat 15 is installed on the transmission rod 12 through the sleeve 131. The mounting groove 154 is opened at one end of the second limiting member 152 away from the first limiting member 151. The mounting groove 154 cooperates with the mounting member 132, and the mounting member 132 is accommodated in the mounting groove 154.

[0060] Optionally, as attached Figure 4 As shown, a first mounting hole 1321 is provided at the upper end of the mounting member 132 along the third direction, and a first matching hole 155 connected to the first mounting hole 1321 is provided on the second limiting member 152. The first mounting hole 1321 and the first matching hole 155 are screwed together to realize the connection and fixation of the first transmission member 13 and the limiting seat 15 in the third direction.

[0061] Optionally, as attached Figure 4 As shown, a second mounting hole 1322 is opened on the mounting member 132 along the first direction, a second matching hole 1611 connected to the second mounting hole 1322 is opened on the push plate 161 along the first direction, and a third matching hole connected to the second mounting hole 1322 is opened in the mounting groove 154 along the first direction. The second mounting hole 1322, the second matching hole 1611 and the third matching hole are screwed to realize the connection and fixation of the first transmission member 13, the limiting seat 15 and the clamping seat 16 in the first direction.

[0062] In one example, in conjunction with Figure 2 and attached Figure 5The second transmission member 14 includes a pushing arm 141 connected to the push plate 161. The two pushing arms 141 are spaced apart in the second direction and connected to the push plate 161 along the first direction. The pushing arm 141 is provided with a lifting slope 142 at one end away from the push plate 161 in the first direction. The height dimension of the lifting slope 142 on the side close to the push plate 161 in the first direction is greater than the height dimension on the side away from the push plate 161 in the first direction.

[0063] Combined with attachment Figure 1 and attached Figure 6 The main body 10 cooperates with the lifting mechanism 20. The lifting mechanism 20 includes a guide rail 201, which extends along a first direction. The lifting arm 21 includes a first connecting arm 211a and a second connecting arm 211b that are cross-connected, and a lifting wheel 212. The lifting wheel 212 is located at the connection between the first connecting arm 211a and the second connecting arm 211b. The first connecting arm 211a and the second connecting arm 211b are movably connected through the lifting wheel 212. The first connecting arm 211a and the second connecting arm 211b can swing around the axial direction of the lifting wheel 212. The first connecting arm 211a and the pushing arm 141 are slidably provided on the guide rail 201, and the first connecting arm 211a and the pushing arm 141 can move along the first direction relative to the guide rail 201. The second connecting arm 211b is installed on one side of the guide rail 201.

[0064] The lifting slope 142 cooperates with the lifting wheel 212 to realize the height change of the lifting arm 21 in the third direction, thereby raising and lowering the unlocking mechanism 30 connected to the upper end of the lifting arm 21. The setting of the lifting slope 142 makes the torque required for the driving member 11 smaller when driving, which can ensure stability during the lifting process.

[0065] Since the pushing arm 141 will move in the first direction along the guide rail 201 during the lifting process in coordination with the lifting arm 21, in the prior art, it is necessary to maintain a good degree of parallelism between the transmission rod 12 and the guide rail 201 to ensure that the lifting of the lifting arm 21 is stable and reliable. If the installation accuracy of the transmission rod 12 and the guide rail 201 is insufficient, the pushing arm 141 will apply radial force to the transmission rod 12 through the first transmission member 13, which will cause the transmission rod 12 to be easily damaged. By setting the fixing component, a movable gap is left between the second transmission member 14 and the first transmission member 13, which can make up for the lack of installation accuracy. The second transmission member 14 can have a certain offset so as not to directly squeeze the first transmission member 13 and the transmission rod 12, thereby reducing the assembly accuracy requirements and reducing the assembly difficulty.

[0066] For example, in conjunction with Figure 1 and attached Figure 6The lifting arms 21 are provided in two groups and are arranged opposite to each other along the second direction and are used to connect with the unlocking mechanism 30. The two groups of lifting arms 21 are connected by a connecting rod 213. More specifically, the lifting wheels 212 of the two groups of lifting arms 21 are connected by a connecting rod 213, and the guide rails 201 are provided in two groups.

[0067] For example, the push arm 141 and the push plate 161 are detachably connected by screw connection. Figure 5 and attached Figure 6 The lower end of the push arm 141 is provided with a mounting flange 1411, and a slide seat 2011 is slidably provided on the guide rail 201. The mounting flange 1411 is connected to the slide seat 2011 to achieve a sliding fit between the second transmission member 14 and the guide rail 201. It can be understood that the slide seat 2011 is located between the first connecting arm 211a and the second connecting arm 211b on the guide rail 201.

[0068] For example, as shown in the attached Figure 6 As shown, the second transmission member 14 also includes a driving plate 143, a first support seat 144 is provided on the driving plate 143, the first connecting arm 211a is installed on the driving plate 143 through the first support seat 144, and the first connecting arm 211a is axially connected to the first support seat 144, that is, the first connecting arm 211a can rotate around the axis relative to the first support seat 144, and the second connecting arm 211b is installed on the side of the guide rail 201 away from the driving plate 143 in the first direction through the first support seat 144, and the second connecting arm 211b is axially connected to the first support seat 144.

[0069] When the driving member 11 drives the transmission rod 12 to rotate around its own axis, the first transmission member 13 moves relative to the transmission rod 12 along the first direction toward the side close to the lifting arm 21, and drives the second transmission member 14 to move along the first direction through the fixing assembly. At this time, the second transmission member 14 is slid on the guide rail 201 until the lifting inclined surface 142 contacts the lifting wheel 212. As the second transmission member 14 continues to move, the contact position of the lifting inclined surface 142 and the lifting wheel 212 changes, and the lifting wheel 212 gradually rises in the third direction until the push plate 161 contacts the driving plate 143 and pushes the driving plate 143 to move in the first direction, causing the first connecting arm 211a to slide along the guide rail 201, and the lifting wheel 212 continues to rise and separates from the pushing arm 141, thereby realizing the lifting of the unlocking mechanism 30 at the upper end of the lifting arm 21.

[0070] Exemplarily, an escape groove is provided at the upper end of the driving plate 143 , and the escape groove is used to escape the card plate 162 and the blocking member 163 .

[0071] Based on the lifting drive mechanism of the above-mentioned battery replacement device, combined with the attached Figure 1 and attached Figure 7The present invention also proposes a battery replacement device, including the above-mentioned main body 10, lifting mechanism 20 and unlocking mechanism 30. The unlocking mechanism 30 is used to unlock the battery pack from the vehicle to remove the battery pack, or to lock the battery pack to the vehicle to install the battery pack on the vehicle.

[0072] Combined with attachment Figure 1 and attached Figure 6 The lifting mechanism 20 includes a base plate 200, a guide rail 201 is installed on the base plate 200 along a first direction, and a power unit 22 is provided on the base plate 200. The power unit 22 enables the base plate 200 to move in a second direction, driving the unlocking mechanism 30 to move in the second direction to realize the transportation of the battery pack.

[0073] For example, as shown in the attached Figure 6 As shown, the power unit 22 includes a driving source 221 and a gear 222. The driving source 221 is used to drive the gear 222 to rotate around its own axis. Figure 7 When the battery swap device is used in a battery swap station, a rack 202 meshing with a gear 222 is provided in the battery swap station. The rack 202 extends along the second direction. Through the cooperation between the gear 222 and the rack 202, the lifting mechanism 20 and the unlocking mechanism 30 can move in the second direction relative to the rack 202.

[0074] Optionally, in combination with Figure 6 and attached Figure 7 The power unit 22 also includes a running wheel 223. A support rail 203 cooperating with the running wheel 223 is provided in the battery swap station. The support rail 203 extends along the second direction. The running wheel 223 is rollingly set on the support rail 203. Driven by the gear 222 and the rack 202, the running wheel 223 can move along the second direction on the support rail 203, which can stabilize the movement of the lifting mechanism 20 and the unlocking mechanism 30 in the second direction.

[0075] Optionally, the running wheels 223 are arranged in two rows, and the two rows of running wheels 223 are spaced apart in the first direction. The support rails 203 are arranged in two rows and are located on both sides of the rack 202 to ensure stable and efficient movement of the lifting mechanism 20 and the unlocking mechanism 30.

[0076] For example, as shown in the attached Figure 6 As shown, a second support seat 214 and a support rail 215 are provided at the upper end of the lifting arm 21, the upper end of the first connecting arm 211a is axially connected to the second support seat 214, and is fixedly connected to the unlocking mechanism 30 through the second support seat 214, the upper end of the second connecting arm 211b is movably connected to the unlocking mechanism 30 through the support rail 215, the support rail 215 is installed at the lower end of the unlocking mechanism 30, and the second connecting arm 211b is slidably provided on the support rail 215. When the main body 10 drives the lifting arm 21 to move, the second connecting arm 211b moves along the first direction relative to the support rail 215 and the unlocking mechanism 30.

[0077] For example, as shown in the attached Figure 1 As shown, the unlocking mechanism 30 includes a support plate 31, which is used to connect to the upper end of the lifting arm 21. The lifting arm 21 is used to realize the lifting and lowering of the support plate 31 in the third direction. A support member 32 is protruded from the support plate 31, and the support member 32 is used to support the battery pack at the bottom of the vehicle.

[0078] As attached Figure 1 As shown, support plate 31 is provided with a positioning member 33 and an unlocking member 34. Positioning member 33 is used to mate with the positioning hole on the battery pack for positioning, and unlocking member 34 is used to mate with the lock body of the battery pack. Positioning member 33 and unlocking member 34 cooperate, allowing unlocking member 34 to lock or unlock the battery pack.

[0079] The battery exchange device proposed in this utility model avoids the problem of easy damage to the battery exchange device due to low installation accuracy, reduces the difficulty of assembly, and reduces the number of maintenance times, which is beneficial to extending the service life of the battery exchange device and improving the battery exchange efficiency, and has good practicality and economy.

[0080] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting drive mechanism for a battery swapping device, characterized in that: The invention comprises a main body (10), wherein the main body (10) comprises a driving member (11), a transmission rod (12), a first transmission member (13) and a second transmission member (14), wherein the driving member (11) is connected to the transmission rod (12), and the driving member (11) is used to drive the transmission rod (12) so that the transmission rod (12) can rotate around its own axis, the first transmission member (13) and the second transmission member (14) can move in a first direction relative to the transmission rod (12), the second transmission member (14) cooperates with the lifting arm (21) of the lifting mechanism (20) so that the unlocking mechanism (30) connected to the upper end of the lifting arm (21) can be raised and lowered, and the second transmission member (14) can generate an offset in the first direction and / or the second direction relative to the first transmission member (13).

2. The lifting drive mechanism of the battery exchange device according to claim 1, characterized in that: The first transmission member (13) and the second transmission member (14) are connected via a fixing assembly, wherein the fixing assembly comprises a limiting seat (15) and a clamping seat (16), wherein the limiting seat (15) is connected to the first transmission member (13), and the clamping seat (16) is connected to the second transmission member (14), and the clamping seat (16) comprises a functional groove, wherein the limiting seat (15) is accommodated in the functional groove, and a movable gap is provided between the limiting seat (15) and the groove wall of the functional groove in the first direction and / or the second direction.

3. The lifting drive mechanism of the battery exchange device according to claim 2, characterized in that: The clamping seat (16) includes a push plate (161) and a clamping plate (162), the push plate (161) is sleeved on the transmission rod (12), and can move relative to the transmission rod (12) along the first direction, the two clamping plates (162) are spaced apart in the second direction, and are connected to the push plate (161) along the first direction, a stopper (163) is protruded on the side of the two clamping plates (162) close to each other in the second direction, and the stopper (163) is located on the side of the clamping plate (162) away from the push plate (161) in the first direction, and the push plate (161), the two clamping plates (162) and the stopper (163) cooperate to form the functional groove.

4. The lifting drive mechanism of the battery exchange device according to claim 3, characterized in that: The two stoppers (163) cooperate to form a first accommodating groove (1601), the push plate (161), the two clamping plates (162) and the two stoppers (163) cooperate to form a second accommodating groove (1602), the first accommodating groove (1601) and the second accommodating groove (1602) are connected along the first direction, the limiting seat (15) includes a first limiting member (151) and a second limiting member (152), the first limiting member (151) and the second limiting member (152) are connected along the first direction, and the two ends of the second limiting member (152) in the second direction protrude from the two ends of the first limiting member (151) in the second direction, the first limiting member (151) is accommodated in the first accommodating groove (1601), and the second limiting member (152) is accommodated in the second accommodating groove (1602).

5. The lifting drive mechanism of the battery exchange device according to claim 4, characterized in that: A first gap (S1) is provided between the second accommodating groove (1602) and the second limiting member (152) in the first direction, and / or a second gap (S2) is provided between the second accommodating groove (1602) and the second limiting member (152) in the second direction, and a third gap (S3) is provided between the first accommodating groove (1601) and the first limiting member (151) in the second direction.

6. The lifting drive mechanism of the battery exchange device according to claim 4, characterized in that: The first transmission member (13) comprises a sleeve (131) and a mounting member (132), wherein the sleeve (131) and the mounting member (132) are connected along a first direction, and the sleeve (131) and the mounting member (132) are both sleeved on the transmission rod (12) and movably connected to the transmission rod (12), and the mounting member (132) is connected to the limiting seat (15).

7. The lifting drive mechanism of the battery exchange device according to claim 6, characterized in that: The limiting seat (15) comprises a sleeve hole (153) and a mounting groove (154); the sleeve hole (153) penetrates the first limiting member (151) and the second limiting member (152) along a first direction; the sleeve (131) is accommodated in the sleeve hole (153); the mounting groove (154) is opened at an end of the second limiting member (152) away from the first limiting member (151); and the mounting member (132) is accommodated in the mounting groove (154).

8. The lifting drive mechanism of the battery exchange device according to claim 3, characterized in that: The second transmission member (14) includes a pushing arm (141) connected to the push plate (161), the two pushing arms (141) are spaced apart in the second direction and connected to the push plate (161) along the first direction, and the pushing arm (141) is provided with a lifting slope (142) at one end away from the push plate (161), and the height dimension of the lifting slope (142) on the side close to the push plate (161) in the first direction is greater than the height dimension of the side away from the push plate (161) in the first direction.

9. The lifting drive mechanism of the battery exchange device according to claim 8, characterized in that: The invention also includes a lifting mechanism (20), wherein the lifting mechanism (20) includes a guide rail (201) and the lifting arm (21), wherein the lifting arm (21) includes a first connecting arm (211a) and a second connecting arm (211b) that are cross-connected, and a lifting wheel (212), wherein the first connecting arm (211a) and the second connecting arm (211b) are movably connected via the lifting wheel (212), wherein the first connecting arm (211a) and the second connecting arm (211b) are slidably arranged on the guide rail (201) and the pushing arm (141), and the lifting inclined surface (142) cooperates with the lifting wheel (212) to enable the unlocking mechanism (30) connected to the upper end of the lifting arm (21) to be raised and lowered.

10. A battery replacement device, characterized in that: The invention comprises a lifting drive mechanism of the battery exchange device according to any one of claims 1 to 9, and further comprises an unlocking mechanism (30), wherein the unlocking mechanism (30) is connected to the upper end of the lifting arm (21), and the lifting arm (21) can make the unlocking mechanism (30) rise and fall in a third direction, and the unlocking mechanism (30) is used to unlock the battery pack from the vehicle, or to lock the battery pack to the vehicle.

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