Electric connection device and charging bin comprising same

Abstract

The utility model discloses an electric connection device and a charging cabin comprising the same, the electric connection device is arranged in the charging cabin, the charging cabin is used for bearing a battery pack and charging the battery pack, the battery pack is provided with a first connector, the electric connection device comprises a second connector, a first connector and a second connector, the second connector is used for being electrically connected with the first connector; the top surface of the bearing part is used for placing the battery pack; the transmission part is connected to the bearing part, and the transmission part acts on the second connector; the bearing part moves downwards due to the gravity effect of the battery pack, and drives the second connector to move in the direction close to the first connector through transmission of the transmission part, so that the second connector and the first connector are electrically connected with each other. The operation is very convenient, and the electric connection is stable and reliable; meanwhile, the structure is simple, and the cost is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to an electric connection device and a charging cabin containing the same. BACKGROUND

[0002] The battery installation mode of the existing electric vehicle is generally divided into fixed type and replaceable type, wherein the battery of the fixed type is generally fixed on the vehicle, and the vehicle is directly taken as the charging object during charging. The battery of the replaceable type is generally installed in a movable manner, and the battery can be taken off at any time and placed in the charging cabin for replacement or charging. After the replacement or charging is completed, the battery is installed on the vehicle body.

[0003] At present, after the battery pack is placed on the charging rack, the charging electric connector on the charging rack is driven to move horizontally and is inserted with the battery electric connector on the battery pack to realize charging of the battery pack. Since the opening of the driving mechanism needs to be controlled after detecting the battery pack on the charging rack, the charging operation structure is complex, and the cost is high. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem that the charging operation structure of the charging electric connector on the battery pack is complex and the cost is high in the prior art, and provides an electric connection device and a charging cabin containing the same.

[0005] The utility model solves the above technical problem by the following technical scheme:

[0006] An electric connection device is arranged in a charging cabin, the charging cabin is used for carrying a battery pack and charging the battery pack, the battery pack has a first connector, and the electric connection device comprises:

[0007] A second connector is used for electrically connecting with the first connector;

[0008] A carrying part has a top surface for placing the battery pack;

[0009] A transmission part is connected to the carrying part, and the transmission part acts on the second connector;

[0010] The carrying part moves downward under the action of the gravity of the battery pack and drives the second connector to move in the direction close to the first connector through the transmission of the transmission part, so as to realize the mutual electric connection of the second connector and the first connector.

[0011] In the scheme, the battery pack is placed on the bearing component, and the second connector is electrically connected with the first connector under the gravity of the battery pack and the transmission of the transmission component, so as to realize the electrical connection and disconnection of the second connector and the first connector. Therefore, the detection and driving mechanism is not required, the operation is very convenient, the structure is simple, and the cost is greatly reduced. Meanwhile, the overall structure of the battery pack is large and heavy, the second connector is more stable and reliable in movement by being placed on the bearing component and being pressed against the bearing component, and the side turning and misplacement phenomenon is effectively avoided, and the electrical connection is stable and reliable.

[0012] Preferably, the transmission component comprises a lever, the lever comprises a pushing part, a hinged part and an abutting part connected in sequence from top to bottom, the hinged part is hinged to the bearing component, and the pushing part acts on one side of the second connector away from the first connector and is used for pushing the movement of the second connector.

[0013] In the scheme, the lever is swung to push the movement of the second connector to realize the electrical connection of the second connector and the first connector, and the structure is very simple and low in cost.

[0014] Preferably, the bearing component comprises a lifting plate, a fixed plate and a scissor piece, the top surface of the lifting plate is used for placing the battery pack, the top end and the bottom end of the scissor piece are connected to the lifting plate and the fixed plate respectively, the hinged part is hinged to the lifting plate and / or the scissor piece, and the abutting part abuts on the fixed plate.

[0015] In the scheme, the battery pack is placed on the top surface of the lifting plate, the contact area between the lifting plate and the battery pack is large, the lifting plate is stably and reliably stressed and moves downward, and the stability is higher. Meanwhile, the scissor piece is connected between the lifting plate and the fixed plate, the lifting plate is more stable in lifting through the scissor piece, and the structure is simple and small in occupied space.

[0016] Preferably, the lifting plate has a guide hole, and the lever passes through the guide hole and can move in the guide hole.

[0017] In the scheme, the guide hole has a guiding and limiting effect on the lever, the lever moves along the preset path direction in the guide hole, that is, moves in the direction of approaching or moving away from the first connector, the misplacement phenomenon of the second connector in the movement process is effectively avoided, and the safety and stability of the electrical connection device are greatly improved.

[0018] Preferably, the scissors mechanism comprises two rods arranged in cross and hinged to each other, one end of the two rods away from the first connector is hinged to the lifting plate and the fixed plate respectively, the bottom of the lifting plate and the top of the fixed plate are provided with horizontal holes, the other end of the two rods close to the first connector is connected to and moves in the two horizontal holes respectively.

[0019] In the scheme, the battery pack is placed on the lifting plate and the lifting plate is moved downward, the two rods are folded and contracted, the other end of the two rods close to the first connector is located below the battery pack and moves in the horizontal hole, the two rods move below the battery pack in the direction close to the battery pack, the carrying part is located below the battery pack, the overall length of the carrying part and the battery pack is further reduced, the structure is more compact, and the overall space occupied is small. At the same time, the two rods are more stable when folded and contracted through the horizontal hole.

[0020] Preferably, the hinge part and the scissors mechanism are coaxially arranged on the lifting plate.

[0021] In the scheme, the above structure is adopted, so that the lever and the scissors mechanism are installed together, the installation and connection are convenient, and the structure is simple.

[0022] Preferably, the electrical connection device further comprises a first reset part, the first reset part is arranged between the lifting plate and the fixed plate and applies an upward force to the lifting plate.

[0023] In the scheme, the above structure is adopted, the first reset part has a reset function, the first reset part is arranged between the lifting plate and the fixed plate and applies an upward force to the lifting plate, so that the carrying part moves upward and returns to the initial state, facilitating the next charging use of the electrical connection device.

[0024] Preferably, the bottom of the lifting plate and / or the top of the fixed plate is provided with a positioning part, and the first reset part is connected to the positioning part.

[0025] And / or, the first reset part is a spring.

[0026] And / or, the number of the first reset parts is multiple.

[0027] In the scheme, the above structure is adopted, the multiple first reset parts are installed and connected with the lifting plate and the fixed plate, the installation and connection are convenient, the connection stability is high, the offset and misalignment of the first reset part during use are effectively avoided, and the safety and stability of the electrical connection device are greatly improved. In addition, the structure is simple and the cost is low.

[0028] Preferably, the lever comprises an upper rod and a lower rod, the top of the upper rod abuts against the second connector, the bottom of the lower rod abuts against the fixed plate, the bottom of the upper rod and the top of the lower rod are connected to each other and hinged to the lifting plate and / or the scissor, and a certain angle is formed between the upper rod and the lower rod.

[0029] In the scheme, the above structure is adopted, the structure is simple, the manufacturing is convenient, the overall structural strength is high, and the use stability is high.

[0030] Preferably, the top of the fixed plate is provided with a first abutting seat, the first abutting seat comprises a first abutting shaft and two first mounting plates, the two first mounting plates are arranged at intervals on the top of the fixed plate, the two ends of the first abutting shaft are connected to the two first mounting plates, the abutting part is located between the two first mounting plates, and the abutting part abuts against the first abutting shaft.

[0031] In the scheme, the abutting part abuts against the first abutting shaft and is limited between the two first mounting plates, so that the abutting part stably acts on the first abutting seat, and the swing of the lever is stable and reliable. At the same time, the first abutting seat has a simple structure and is convenient to install and set.

[0032] Preferably, the second connector is provided with a second abutting seat, the second abutting seat comprises a second abutting shaft and two second mounting plates, the two second mounting plates are arranged at intervals on the second connector, the two ends of the second abutting shaft are connected to the two second mounting plates, and the pushing part is located between the two second mounting plates and abuts against the second abutting shaft.

[0033] In the scheme, the pushing part abuts against the second abutting shaft and is limited between the two second mounting plates, so that the pushing part stably acts on the second abutting seat, and the horizontal movement of the second connector is stable and reliable to realize the mutual connection with the first connector. At the same time, the second abutting seat has a simple structure and is convenient to install and set.

[0034] Preferably, the second abutting seat is arranged on the bottom surface of the second connector or the end surface of the second connector.

[0035] In the scheme, the above structure is adopted, the length of the second connector is effectively shortened, the space at the two ends of the second connector is not occupied, and the interference phenomenon with the telescopic mechanism of the lifting machine and other structures is effectively avoided.

[0036] In addition, the second abutting seat does not occupy the height space of the second connector, more battery charging positions are realized in the battery charging rack for charging the battery pack.

[0037] Preferably, the number of the pushing rods is two, and the two pushing portions are respectively abutted against two ends of the second connector.

[0038] In the scheme, the above structure is adopted, the two pushing rods are abutted against two ends of the second connector and push the second connector to move in the direction of approaching the first connector, so that the second connector moves stably and reliably on the bearing component, and the connection between the second connector and the first connector is ensured.

[0039] Preferably, the electrical connection device further comprises a second reset component, which is connected to a side of the second connector away from the first connector and applies an action force to the second connector away from the first connector.

[0040] In the scheme, the above structure is adopted, the second reset component has a reset function, the second reset component applies an action force to the second connector away from the first connector, so that the second connector moves backward and returns to the initial state, and the second connector and the first connector are disconnected from each other, which facilitates the next charging use of the second connector. At the same time, the second connector moves backward and pushes the pushing portion to swing in the direction away from the first connector, so that the transmission component also returns to the initial state.

[0041] Preferably, the electrical connection device comprises a guide rail, which is arranged on the top surface of the bearing component, and the second connector is connected to the guide rail and moves on the guide rail.

[0042] In the scheme, the above structure is adopted, the guide rail has a guiding function, when the pushing portion of the pushing rod acts on the second abutting seat to move the second connector toward the first connector, the second connector moves on the guide rail, so that the second connector moves horizontally along the preset path direction, effectively avoiding the offset and misalignment of the second connector during movement, ensuring the mutual connection between the second connector and the first connector, and greatly improving the docking precision, safety and stability of the electrical connection device.

[0043] Preferably, the second connector comprises a mounting plate, a floating plate, at least one elastic member and a plurality of pole columns, the transmission component is connected to the mounting plate, the floating plate is movably mounted on the mounting plate through the elastic member, and the plurality of pole columns are all mounted on the floating plate and used for electrical connection with the first connector.

[0044] In the scheme, the above structure is adopted, the floating plate is movably connected to the mounting plate through the elastic member, and the electrical connection between the second connector and the first connector is more stable. At the same time, the second connector contacts the first connector through the pole columns to form the electrical connection, so that the pole columns do not contact the mounting plate during use of the second connector, and the safety and stability of the electrical connection device are further improved.

[0045] A charging bin comprising the electrical connection device as described above.

[0046] In the present scheme, by placing the battery pack on the bearing component, under the gravity of the battery pack itself, the second connector and the first connector are electrically connected to each other through the transmission of the transmission component, thereby realizing the electrical connection and disconnection of the second connector and the first connector, which is very convenient to operate and stable and reliable in electrical connection; meanwhile, no detection and driving mechanism is needed, the structure is simple, and the cost is greatly reduced.

[0047] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be combined arbitrarily, that is, the preferred examples of the present utility model are obtained.

[0048] The positive progress effect of the present utility model is that:

[0049] The electrical connection device and the charging bin comprising the same of the present utility model realize the electrical connection and disconnection of the second connector and the first connector by placing the battery pack on the bearing component under the gravity of the battery pack itself, through the transmission of the transmission component, which is very convenient to operate and stable and reliable in electrical connection; meanwhile, no detection and driving mechanism is needed, the structure is simple, and the cost is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 It is a front view structural schematic diagram of the electrical connection device of the embodiment of the present utility model.

[0051] Figure 2 It is a rear view structural schematic diagram of the electrical connection device of the embodiment of the present utility model.

[0052] Figure 3 It is a left view structural schematic diagram of the electrical connection device of the embodiment of the present utility model.

[0053] Figure 4 It is a three-dimensional structural schematic diagram of the electrical connection device of the embodiment of the present utility model.

[0054] Figure 5 It is another perspective three-dimensional structural schematic diagram of the electrical connection device of the embodiment of the present utility model.

[0055] Figure 6 It is a structural schematic diagram of the transmission component of the embodiment of the present utility model.

[0056] EXPLANATION OF REFERENCE NUMERALS:

[0057] Second connector 1

[0058] Mounting plate 11

[0059] Floating plate 12

[0060] Elastic member 13

[0061] Pole 14

[0062] Second abutting seat 15

[0063] Second abutting shaft 151

[0064] Second mounting plate 152

[0065] Carrying part 2

[0066] Lifting plate 21

[0067] Guide hole 211

[0068] Horizontal hole 212

[0069] Positioning part 213

[0070] Fixed plate 22

[0071] Scissor 23

[0072] Rod 231

[0073] First abutting seat 24

[0074] First abutting shaft 241

[0075] First mounting plate 242

[0076] Transmission part 3

[0077] Pushing part 31

[0078] Hinge part 32

[0079] Abutting part 33

[0080] Upper rod 34

[0081] Lower rod 35

[0082] First reset part 4

[0083] Second reset part 5

[0084] Guide rail 6

[0085] Guide rail body 61

[0086] Guide rail base 62 DETAILED DESCRIPTION

[0087] The utility model will be more clearly and completely explained by the way of examples and in connection with the drawings, but it will not limit the utility model in the range of examples because of this.

[0088] This utility model discloses a charging compartment for carrying and charging a battery pack. Specifically, the charging compartment includes a compartment body, a battery charging rack, and multiple electrical connection devices. The battery charging rack and multiple electrical connection devices are all disposed within the compartment body, and the multiple electrical connection devices are all connected to the battery charging rack. The battery charging rack has multiple battery charging positions, and the multiple electrical connection devices correspond to the multiple battery charging positions. The battery charging positions are used to carry a depleted battery pack. The battery pack has a first connector, and the electrical connection devices are electrically connected to the first connector of the battery pack to achieve charging of the battery pack.

[0089] like Figures 1 to 6 As shown, the electrical connection device includes a second connector 1, a support component 2, and a transmission component 3. The second connector 1 is used to make an electrical connection with the first connector. The top surface of the support component 2 is used to place the battery pack. The transmission component 3 is connected to the support component 2 and acts on the second connector 1. The support component 2 moves downward due to the gravity of the battery pack and drives the second connector 1 to move in a direction close to the first connector through the transmission of the transmission component 3, so as to realize the electrical connection between the second connector 1 and the first connector.

[0090] When a depleted battery pack needs charging, the telescopic mechanism of the elevator extends towards the battery charging position and pulls the depleted battery pack into the charging position. Then, the elevator moves downward, placing the depleted battery pack in the charging position and onto the support component 2. The support component 2 moves downward due to the gravity of the depleted battery pack. The downward movement of the support component 2 drives the transmission component 3 to move. Through the transmission component 3, the second connector 1 moves in a direction closer to the first connector, so that when the battery pack is placed in the charging position, the second connector 1 and the first connector are electrically connected to each other, thereby realizing the charging of the battery pack.

[0091] After the battery pack is fully charged, it can be used to replace the depleted battery pack in the electric vehicle. The telescopic mechanism of the lift extends into the battery charging position and reaches under the fully charged battery pack. Then, the lift moves upward, lifting the fully charged battery pack. Since the supporting component 2 is not subjected to the weight of the battery pack, the supporting component 2 and the transmission component 3 will return to their initial state. At the same time, the second connector 1 moves away from the first connector to disconnect the second connector 1 from the first connector. Afterward, the telescopic mechanism of the lift retracts outward from the battery charging position, thereby removing the fully charged battery pack from the battery charging rack for installation on the electric vehicle.

[0092] The battery pack is placed on the bearing component 2, under the gravity of the battery pack itself, the second connector 1 is electrically connected with the first connector through the transmission of the transmission component 3, so that the electrical connection and disconnection of the second connector 1 and the first connector are realized, without the need to set the detection and driving mechanism, the operation is very convenient, the structure is simple, and the cost is greatly reduced. At the same time, the overall structure of the battery pack is large and very heavy, by placing the battery pack on the bearing component 2 and tightly pressing against the bearing component 2, the movement of the second connector 1 is more stable and reliable, and the side turning and misalignment phenomenon is effectively avoided, and the electrical connection is stable and reliable.

[0093] The bearing component 2 includes a lifting plate 21, a fixed plate 22 and a scissor piece 23, the top surface of the lifting plate 21 is used to place the battery pack, the top end and the bottom end of the scissor piece 23 are connected to the lifting plate 21 and the fixed plate 22 respectively, and the two ends of the transmission component 3 can act on the lifting plate 21 and the second connector 1 respectively. The battery pack is placed on the top surface of the lifting plate 21 and exerts a downward force on the lifting plate 21, the lifting plate 21 moves downward under the gravity of the battery pack, and the lifting plate 21 moves downward to drive one end of the transmission component 3 to move downward, and the other end of the transmission component 3 drives the second connector 1 to move in the direction close to the first connector, so as to realize the electrical connection between the second connector 1 and the first connector and the charging of the battery pack. The battery pack is placed on the top surface of the lifting plate 21, and the contact area between the lifting plate 21 and the battery pack is large, so that the lifting plate 21 is stable and reliable in force and moves downward, and the stability is higher. At the same time, the scissor piece 23 is connected between the lifting plate 21 and the fixed plate 22, and the lifting plate 21 moves more stably in the lifting process through the scissor piece 23, and the occupied space is small and the structure is simple.

[0094] In the embodiment, the transmission component 3 includes a lever, the lever includes a pushing part 31, a hinged part 32 and an abutting part 33 connected in sequence from top to bottom, the hinged part 32 is hinged to the bearing component 2, and the pushing part 31 acts on one side of the second connector 1 away from the first connector and is used to push the movement of the second connector 1. The bearing component 2 moves downward and drives the swing of the lever, so that the pushing part 31 of the lever acts on the second connector 1 and drives the second connector 1 to move, so as to realize the electrical connection between the second connector 1 and the first connector and the charging of the battery pack.

[0095] Specifically, the abutting part 33 abuts on the fixed plate 22, the hinged part 32 can be hinged on the lifting plate 21, and the hinged part 32 can also be hinged on the scissor piece 23. The depleted battery pack is placed on the lifting plate 21 and makes the lifting plate 21 move downward, so that the hinged part 32 of the lever moves downward, the abutting part 33 abuts on the fixed plate 22 and is lifted upward relative to the hinged part 32, so that the pushing part 31 is swung toward the direction close to the first connector and pushes the second connector 1, thereby realizing the mutual electrical connection of the second connector 1 and the first connector and charging the battery pack. The present embodiment uses the lever to push the second connector 1 to realize the mutual electrical connection of the second connector 1 and the first connector, and the structure is very simple and the cost is low.

[0096] In the present embodiment, the second connector 1 is located on the top surface of the lifting plate 21 and moves horizontally on the top surface of the lifting plate 21. The number of levers is two, and the two pushing parts 31 abut on the two ends of the second connector 1 respectively. By abutting on the two ends of the second connector 1 and pushing the second connector 1 to move in the direction close to the first connector, the second connector 1 moves horizontally on the lifting plate 21 stably and reliably, ensuring the connection of the second connector 1 and the first connector. The number of scissor pieces 23 is two, and the two scissor pieces 23 are located at the two ends of the lifting plate 21 respectively, so that the lifting plate 21 has high stability in lifting movement.

[0097] As shown in Figure 1 and Figure 2 , the top of the fixed plate 22 is provided with a first abutting seat 24, the first abutting seat 24 comprises a first abutting shaft 241 and two first mounting plates 242, the two first mounting plates 242 are arranged on the top of the fixed plate 22 in a spaced manner, the two ends of the first abutting shaft 241 are connected to the two first mounting plates 242, the abutting part 33 is located between the two first mounting plates 242, and the abutting part 33 abuts on the first abutting shaft 241. The depleted battery pack is placed on the lifting plate 21 and makes the lifting plate 21 move downward, and the abutting part 33 of the lever abuts on the first abutting seat 24 and is lifted upward relative to the hinged part 32; the abutting part 33 abuts on the first abutting shaft 241 and is limited between the two first mounting plates 242, so that the abutting part 33 stably acts on the first abutting seat 24, ensuring the stable and reliable swing of the lever. At the same time, the first abutting seat 24 has a simple structure and is convenient to install and set.

[0098] The second connector 1 is provided with a second abutting seat 15, the second abutting seat 15 comprises a second abutting shaft 151 and two second mounting plates 152, the two second mounting plates 152 are arranged at intervals on the second connector 1, the two ends of the second abutting shaft 151 are connected to the two second mounting plates 152, the pushing part 31 is located between the two second mounting plates 152, and the pushing part 31 abuts against the second abutting shaft 151. The battery pack in power failure is placed on the lifting plate 21 and makes the lifting plate 21 move downward, the abutting part of the lever is lifted upward relative to the hinged part, the pushing part 31 of the lever moves downward relative to the hinged part, and then an action force of moving close to the first connector is applied to the second abutting seat 15, so that the second connector moves in the direction of the first connector; the pushing part 31 abuts against the second abutting shaft 151 and is limited between the two second mounting plates 152, so that the pushing part 31 stably acts on the second abutting seat 15, and the horizontal movement of the second connector 1 is stable and reliable to realize the mutual connection with the first connector. At the same time, the second abutting seat 15 has simple structure and is convenient to install and arrange.

[0099] In the embodiment, the second abutting seat 15 is arranged on the bottom surface of the second connector 1, so that the length of the second connector 1 is effectively shortened, the space at the two ends of the second connector 1 is not occupied, and the interference phenomenon with the telescopic mechanism and other structures of the lifting machine is effectively avoided.

[0100] Of course, in other embodiments, the second abutting seat 15 can also be arranged on the end surface of the second connector 1, that is, the two second abutting seats 15 are arranged at the two ends in the length direction of the second connector 1, so that the second abutting seat 15 does not occupy the height space of the second connector 1, and more battery charging positions are realized in the battery charging rack for charging the battery pack.

[0101] In the embodiment, the electrical connection device comprises a guide rail 6, the guide rail 6 is arranged on the top surface of the bearing part 2, and the second connector 1 is connected to the guide rail 6 and moves on the guide rail 6. The guide rail 6 has a guiding effect, when the pushing part 31 of the lever acts on the second abutting seat 15 to move the second connector 1 towards the first connector, the second connector 1 moves on the guide rail 6, so that the second connector 1 moves horizontally along the preset path direction, the deviation and dislocation phenomenon of the second connector 1 in the moving process is effectively avoided, the mutual connection between the second connector 1 and the first connector is guaranteed, and the docking precision and safety and stability of the electrical connection device are greatly improved.

[0102] The guide rail 6 comprises a guide rail body 61 and a guide rail base 62, the guide rail base 62 is connected to the top surface of the lifting plate 21, the guide rail body 61 is connected to the top of the guide rail base 62, the bottom of the second connector 1 is provided with a sliding block, and the sliding block is slidably arranged on the guide rail body 61; the height of the second connector 1 is increased through the guide rail base 62, so that the distance of the second connector 1 in the horizontal moving direction is further lengthened, and the mutual connection or disconnection of the second connector 1 and the first connector is ensured. The number of the sliding block and the guide rail body 61 is two, and the two sliding blocks are located at the two ends of the bottom of the second connector 1, so that the movement is more stable and reliable. Of course, in other embodiments, the two sliding blocks can also be located on the end surfaces of the two ends of the second connector 1 instead of the bottom of the second connector 1.

[0103] As shown in Figure 4 , the lifting plate 21 is provided with a guide hole 211, and the push rod passes through the guide hole 211 and can move in the guide hole 211. The guide hole 211 has a guiding and limiting effect on the push rod, so that the push rod moves along a preset path direction in the guide hole 211, that is, moves in the direction of approaching or moving away from the first connector, effectively avoiding the offset and misalignment phenomenon of the second connector 1 during movement, and greatly improving the safety and stability of the electrical connection device. The guide hole 211 is a waist-shaped hole, the length of the hole is greater than the horizontal moving distance of the push rod when the second connector 1 and the first connector are connected, and the width of the hole is greater than the thickness of the push rod.

[0104] As shown in Figure 3 and Figure 4 , the scissors 23 comprise two rod members 231 which are arranged in cross and are hingedly connected to each other, one end of the two rod members 231 away from the first connector is hingedly connected to the lifting plate 21 and the fixed plate 22 respectively, the bottom of the lifting plate 21 and the top of the fixed plate 22 are both provided with a horizontal hole 212, and the other end of the two rod members 231 close to the first connector is connected to the two horizontal holes 212 and moves in the horizontal holes 212. The battery pack is placed on the lifting plate 21 and makes the lifting plate 21 move downward, the two rod members 231 are folded and contracted, the other end of the two rod members 231 close to the first connector will be located below the battery pack and moves in the horizontal hole 212, so that the two rod members 231 move below the battery pack in the direction of approaching the battery pack, so that the carrying part 2 is located below the battery pack and occupies the space below the battery pack, the overall length of the carrying part 2 and the battery pack is further reduced, the structure is more compact, and the overall occupied space is small. At the same time, through the horizontal hole 212, the stability of the two rod members 231 during folding and contraction is higher.

[0105] Specifically, the bottom of the lifting plate 21 has two shaft seats, the top of the fixed plate 22 also has two shaft seats, one end of the two rod members 231 away from the first connector has a hinged shaft, the two hinged shafts are hinged to the two shaft seats on the bottom of the lifting plate 21 and the top of the fixed plate 22 away from the first connector, the two shaft seats on the bottom of the lifting plate 21 and the top of the fixed plate 22 close to the first connector have horizontal holes 212, and the other end of the two rod members 231 close to the first connector moves in the two horizontal holes 212.

[0106] The fixed plate 22 is connected to the battery charging rack by fasteners, and the number of fasteners is multiple. The multiple fasteners are arranged near the shaft seats on the top of the fixed plate 22, so that the overall structure has higher stability.

[0107] In this embodiment, the hinge part 32 and the scissor member 23 are coaxially arranged on the lifting plate 21, that is, one end of the scissor member 23 away from the first connector is coaxially hinged to the shaft seat on the bottom of the lifting plate 21, so that the lever and the rod member 231 are installed together, which is convenient for installation and has a simple structure.

[0108] As shown in Figure 3 and Figure 6 , the lever includes an upper rod member 34 and a lower rod member 35. The top of the upper rod member 34 abuts against the second connector 1, the bottom of the lower rod member 35 abuts against the fixed plate 22, the bottom of the upper rod member 34 and the top of the lower rod member 35 are connected to each other and hinged to the lifting plate 21 and / or the scissor member 23, and a certain included angle is formed between the upper rod member 34 and the lower rod member 35. In this embodiment, the upper rod member 34 and the lower rod member 35 are integrally formed and shaped as ">". Thus, the structure is simple, the manufacturing is convenient, the overall structural strength is high, and the use stability is high.

[0109] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 5 , the electrical connection device further includes a first reset part 4. The first reset part 4 is arranged between the lifting plate 21 and the fixed plate 22 and applies an upward force to the lifting plate 21. The battery pack in the battery charging position needs to be installed on the electric vehicle. The fully charged battery pack is lifted upward. Since the bearing part 2 is not subjected to the gravity of the battery pack, the first reset part 4 has a reset function. By arranging the first reset part 4 between the lifting plate 21 and the fixed plate 22 and applying an upward force to the lifting plate 21, the bearing part 2 moves upward and returns to the initial state, so as to facilitate the next charging use of the electrical connection device.

[0110] The bottom of the lifting plate 21 has a positioning portion 213, the top of the fixed plate 22 also has a positioning portion 213, and the upper and lower ends of the first reset component 4 are connected to the positioning portions 213 of the bottom of the lifting plate 21 and the top of the fixed plate 22 respectively, so that the first reset component 4 is mounted and connected together with the lifting plate 21 and the fixed plate 22, which is convenient to install and connect, and has high connection stability, effectively avoids the offset and dislocation of the first reset component 4 during use, and greatly improves the safety and stability of the electric connection device.

[0111] In the embodiment, the first reset component 4 is a spring, and the positioning portion 213 has a columnar shape. The spring is sleeved on the positioning portion 213, which has a simple structure and low cost. The number of the first reset component 4 is multiple, and the multiple first reset components 4 are located between and spaced apart from the two scissors members 23.

[0112] The electric connection device further comprises a second reset component 5 connected to the second connector 1 on the side away from the first connector and applying a force to the second connector 1 away from the first connector. The battery pack in the battery charging position needs to be installed on the electric vehicle, and the fully charged battery pack is lifted upward. Since the bearing component 2 is not subjected to the gravity of the battery pack, the second reset component 5 has a reset function, and applies a force to the second connector 1 away from the first connector, so that the second connector 1 moves backward and returns to the initial state, and the second connector 1 and the first connector are disconnected from each other, which facilitates the next charging use of the second connector 1. At the same time, the second connector 1 moves backward and pushes the pushing portion 31 to swing away from the first connector, so that the transmission component 3 also returns to the initial state.

[0113] The second reset component 5 is a spring, the spring is tensioned, and the two ends of the spring are connected to the guide rail base 62 and the rear side of the second connector 1 respectively. The number of the second reset component 5 is two, and the two second reset components 5 are connected to the two ends of the second connector 1 respectively.

[0114] The second connector 1 comprises a mounting plate 11, a floating plate 12, at least one elastic member 13 and a plurality of pole columns 14. The transmission component 3 is connected to the mounting plate 11, the floating plate 12 is movably mounted on the mounting plate 11 through the elastic member 13, and the plurality of pole columns 14 are mounted on the floating plate 12 and used for electrically connecting with the first connector. The floating plate 12 is movably connected with the mounting plate 11 through the elastic member 13, so that the electrical connection between the second connector 1 and the first connector is more stable. At the same time, the second connector 1 contacts the first connector through the pole columns 14 to form an electrical connection. The mounting plate 11 is provided with a through hole, and the wiring end of the pole column 14 penetrates through the through hole of the mounting plate 11, so that the pole column 14 does not contact the mounting plate 11 during use of the second connector 1, and the safety and stability of the electric connection device are further improved.

[0115] In the embodiment, the number of elastic members 13 is multiple, and the multiple elastic members 13 are respectively arranged at two ends of the floating plate 12 arranged symmetrically along the length direction of the floating plate 12. Among them, the multiple elastic members 13 are respectively arranged at the left and right two ends of the floating plate 12, and the upper and lower two ends of the floating plate 12 are not arranged with the elastic members 13, thereby effectively reducing the overall height of the electric connection device, the structure is more compact, and the occupied area is further reduced.

[0116] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, but these changes and modifications all fall within the protection scope of the present application.

Claims

1. An electrical connection device disposed in a charging pod, the charging pod configured to hold and charge a battery pack, the battery pack having a first connector, the electrical connection device comprising: The electric connection device comprises: a second connector for electrically connecting with the first connector; a bearing component having a top surface for placing the battery pack; a transmission component connected to the bearing component and acting on the second connector; The bearing component moves downward under the gravity of the battery pack and drives the second connector to move towards the first connector through the transmission of the transmission component, so as to realize the electrical connection between the second connector and the first connector.

2. The electrical connection device of claim 1, wherein, The transmission component comprises a lever, which comprises a pushing part, a hinged part and an abutting part connected in sequence from top to bottom, the hinged part is hinged to the bearing component, and the pushing part acts on one side of the second connector away from the first connector and is used to push the movement of the second connector.

3. An electrical connection device as claimed in claim 2, characterised in that, The bearing component comprises a lifting plate, a fixed plate and a scissor piece, the top surface of the lifting plate is used for placing the battery pack, the top end and the bottom end of the scissor piece are connected to the lifting plate and the fixed plate respectively, the hinged part is hinged to the lifting plate and / or the scissor piece, and the abutting part abuts on the fixed plate.

4. An electrical connection device as claimed in claim 3, characterised in that, The lifting plate has a guide hole, and the lever passes through the guide hole and can move in the guide hole.

5. The electrical connection device of claim 3, wherein, The scissor piece comprises two rod pieces arranged in cross and hinged to each other, one end of each of the two rod pieces away from the first connector is hinged to the lifting plate and the fixed plate respectively, the bottom of the lifting plate and the top of the fixed plate each have a horizontal hole, and the other end of each of the two rod pieces close to the first connector is connected to and moves in the two horizontal holes respectively.

6. The electrical connection device of claim 3, wherein, The hinged part and the scissor piece are coaxially arranged on the lifting plate.

7. An electrical connection device as claimed in claim 3, characterised in that The electric connection device further comprises a first reset component, which is pressed between the lifting plate and the fixed plate and applies an upward force to the lifting plate.

8. An electrical connection device as claimed in claim 7, characterised in that The bottom of the lifting plate and / or the top of the fixed plate has a positioning part, and the first reset component is connected to the positioning part; And / or, the first reset component is a spring; And / or, the number of the first reset component is multiple.

9. An electrical connection device as claimed in claim 3, characterised in that The lever comprises an upper rod piece and a lower rod piece, the top of the upper rod piece abuts on the second connector, the bottom of the lower rod piece abuts on the fixed plate, the bottom of the upper rod piece and the top of the lower rod piece are connected to each other and hinged to the lifting plate and / or the scissor piece, and a certain included angle is formed between the upper rod piece and the lower rod piece.

10. The electrical connection device of claim 3, wherein, The top of the fixed plate is provided with a first abutting seat, the first abutting seat comprises a first abutting shaft and two first mounting plates, the two first mounting plates are arranged on the top of the fixed plate in a spaced manner, the two ends of the first abutting shaft are connected to the two first mounting plates, the abutting part is located between the two first mounting plates, and the abutting part abuts on the first abutting shaft.

11. The electrical connection device of claim 2, wherein, The second connector is provided with a second abutting seat, the second abutting seat comprises a second abutting shaft and two second mounting plates, the two second mounting plates are arranged at intervals on the second connector, two ends of the second abutting shaft are connected to the two second mounting plates, the pushing part is located between the two second mounting plates, and the pushing part abuts against the second abutting shaft.

12. An electrical connection device as claimed in claim 11, characterised in that, The second abutting seat is arranged on the bottom surface of the second connector or the end surface of the second connector.

13. The electrical connection device of claim 2, wherein, The number of the push rods is two, and the two pushing parts abut against two ends of the second connector respectively.

14. The electrical connection device of claim 1, wherein, The electric connection device further comprises a second reset component, the second reset component is connected to one side of the second connector which is away from the first connector and applies an acting force to the second connector which is away from the first connector; And / or, the electric connection device comprises a guide rail, the guide rail is arranged on the top surface of the bearing component, the second connector is connected to the guide rail and moves on the guide rail; And / or, the second connector comprises a mounting plate, a floating plate, at least one elastic piece and a plurality of pole columns, the transmission component is connected to the mounting plate, the floating plate is movably arranged on the mounting plate through the elastic piece, and the plurality of pole columns are all arranged on the floating plate and used for electrically connecting with the first connector.

15. A charging pod characterized by, The electric connection device comprises the electric connection device according to any one of claims 1-14.

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