Ground terminal charging device, charging pile system and charging system

Abstract

The utility model requests protection's ground terminal charging device, charging pile system and charging system, the lifting module includes lifting drive mechanism, connecting rod mechanism and bearing platform, lifting drive mechanism includes drive part and drive base, drive part is connected with drive base transmission, for drive drive base reciprocating motion along second direction, second direction and first direction between present preset angle of inclusion; The power input end of connecting rod mechanism is hinged with drive base; The power output end of bearing platform is hinged with connecting rod mechanism, for carrying charging connector, when drive base reciprocating motion along second direction, drive base can drive connecting rod mechanism folding or unfolding, to drive bearing platform along first direction and lift, so that the lifting module need not rely on longer vertical transmission stroke to realize lifting function to reduce the space that lifting module needs to occupy in the height direction of ground terminal charging device when initial state, be favorable to realize the miniaturization design of ground terminal charging device.

Description

Technical Field

[0001] This application relates to the field of electric vehicle technology, and in particular to a ground-mounted charging device, a charging pile system, and a charging system. Background Technology

[0002] With the popularization of new energy vehicles, automatic charging technology has become one of the key directions for improving charging convenience. Ground-mounted charging devices, as autonomously lifting and lowering automatic charging equipment, can automatically drive the charging connector to rise via a lifting module, allowing the charging connector to mate with the vehicle-side connector, thus achieving unmanned charging operations. Currently, existing ground-mounted charging devices typically use a direct-drive lifting mechanism to lift and lower the charging connector. However, limited by the drive structure characteristics of the direct-drive lifting mechanism, it requires a long vertical transmission stroke, resulting in a large overall height dimension of the ground-mounted charging device. This hinders its miniaturization design and limits its application scenarios. Utility Model Content

[0003] In view of this, it is necessary to provide a ground-mounted charging device, a charging pile system, and a charging system that can solve the above-mentioned technical problems.

[0004] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0005] A ground-end charging device, the ground-end charging device including a lifting module, the lifting module comprising:

[0006] A lifting drive mechanism, comprising a drive member and a drive seat, wherein the drive member is pulsatorically connected to the drive seat and is used to drive the drive seat to reciprocate along a second direction, wherein the second direction forms a preset angle with the first direction.

[0007] A linkage mechanism, wherein the power input end of the linkage mechanism is hinged to the drive seat;

[0008] A support platform, which is hinged to the power input end of the linkage mechanism, is used to support the charging connector;

[0009] When the drive seat reciprocates along the second direction, the drive seat can drive the linkage mechanism to fold or unfold, so as to drive the support platform to rise and fall along the first direction, and the first direction and the second direction form a preset angle.

[0010] It is understandable that by controlling the reciprocating motion of the drive seat along the second direction through the drive component, the linkage mechanism hinged to the drive seat is driven to fold or unfold. The folding or unfolding of the linkage mechanism converts the motion in the second direction into a drive to lift the platform along the first direction. This allows the lifting module to achieve the lifting function without relying on a long vertical transmission stroke, thereby reducing the space required by the lifting module in the height direction of the ground charging device in the initial state. This is conducive to the miniaturization design of the ground charging device and helps to broaden the application scenarios of the ground charging device.

[0011] In one embodiment, the linkage mechanism includes a first linkage unit and a second linkage unit, the first linkage unit and the second linkage unit being stacked along the first direction, and the first linkage unit and the second linkage unit being hinged to each other.

[0012] It is understandable that by employing a first and second linkage unit stacked and hinged together along the first direction, the linkage mechanism forms a double-layer linkage structure. Compared to a single-layer linkage structure, this linkage mechanism can reduce the requirements for the drive seat's travel in the second direction while achieving the same charging connector lifting height. Compared to multi-layer linkage structures with three or more layers, this linkage mechanism requires less space in the height direction of the ground charging device in the initial state, thus facilitating further miniaturization of the ground charging device design.

[0013] In one embodiment, the second linkage unit includes a drive linkage, one end of which is hinged to the support platform, and the other end of which is hinged to the drive seat;

[0014] The first link unit and the second link unit share a first link, which extends along the second direction and one end of the first link is hinged to the drive link.

[0015] It is understandable that by using a first link that extends along the second direction together with the first link unit and the second link unit, and hinged the first link to the drive link, the driving force of the drive link, when driven by the drive seat, can simultaneously drive the first link unit and the second link unit to fold or unfold in coordination. This ensures the synchronization of their movements during the folding or unfolding process and avoids swaying or tilting when the support platform drives the charging connector to rise or fall due to asynchronous transmission. At the same time, sharing the first link can also reduce the number of links in the linkage mechanism, simplify its overall structure, and help reduce manufacturing costs.

[0016] In one embodiment, the first linkage unit further includes a second linkage and a third linkage, one end of the second linkage is hinged to the other end of the first linkage, and the other end of the second linkage is fixedly disposed relative to the drive seat along the second direction;

[0017] One end of the third link is disposed on the side of the drive link away from the first link, and is simultaneously hinged to one end of both the drive link and the first link; the other end of the third link is fixedly disposed relative to the drive seat along the second direction.

[0018] It is understandable that by setting up a second link and a third link, and setting the end of the second link and the third link away from the first link as a fixed hinge point, when the drive link moves, it can drive the first link to move up and down in the first direction under the constraint and guidance of the second link and the third link, and ensure that the first link is consistent in direction and stable in attitude during the up and down process.

[0019] In one embodiment, the drive link includes a first drive rod portion, which is disposed in the area where the first link unit is located;

[0020] The second connecting rod, the first driving rod, and the third connecting rod are all provided with bent portions.

[0021] It is understandable that by setting bending portions on the second link, the first drive link and the third link respectively, not only can the space occupied by the first link unit along the first direction be reduced when the lifting module is in the terminated state, but the consistency of the direction of the link mechanism when driving the lifting platform to rise and fall during folding or unfolding can also be ensured.

[0022] In one embodiment, the bending angles of the bends on the second link and the third link are equal and set as P, and P satisfies 147°≤P≤157°;

[0023] The bending angle of the bent portion on the first drive rod is set to Q, and Q satisfies 158°≤Q≤168°.

[0024] Understandably, by setting the bending angles of the second and third links to be equal and between 147° and 157°, and setting the bending angle of the first drive rod between 158° and 168°, it can be ensured that the first link unit can meet the expansion required to achieve the expected lifting height, thereby ensuring that the platform can be stably lifted to the target position under the drive of the link mechanism.

[0025] In one embodiment, the lifting drive mechanism further includes a drive screw that extends along the second direction and is threadedly connected to the drive seat;

[0026] The driving component is connected to the driving screw and is used to drive the driving screw to rotate.

[0027] It is understandable that by using a drive screw to achieve the transmission connection between the drive component and the drive seat, the installation space of the drive seat in the second direction is integrated into the area where the drive screw is located. This reduces the installation space required in the second direction when installing the lifting drive mechanism. At the same time, compared with the telescopic drive method to achieve the movement of the drive seat in the second direction, it is beneficial to reduce the overall size of the drive component, thereby contributing to the miniaturization of the lifting module.

[0028] In one embodiment, the ground-side charging device further includes a charging connector that is floatingly mounted on the lifting module to allow for adaptive positional adjustments when the charging connector mates with the vehicle-side connector.

[0029] Understandably, by floating the charging connector on the support platform, the charging connector can make adaptive passive adjustments during the docking process with the vehicle connector using its own floating degree of freedom to compensate for the positional and angular deviations between the charging connector and the vehicle connector, thereby ensuring the smoothness and reliability of the docking process between the charging connector and the vehicle connector.

[0030] In one embodiment, the charging connector is provided with a first spring, a second spring, and a third spring, and the charging connector is placed on the support platform along the first direction via the third spring;

[0031] The first and second springs are disposed on the periphery of the charging connector, and the charging connector abuts against the support platform through the first and second springs.

[0032] Understandably, by using the first, second, and third springs to achieve contact between the charging connector and the carrier platform, and by utilizing the elastic deformation of the spring structure, the charging connector can adaptively adjust during the docking process with the vehicle-end connector, thereby improving the positional tolerance during docking.

[0033] In one embodiment, a limiting pressure plate is provided on the support platform. The limiting pressure plate is located on the side of the charging connector away from the third spring and abuts against the charging connector.

[0034] Understandably, by using a limiting pressure plate to limit the charging connector to the carrier platform, it is possible not only to prevent the charging connector from detaching from the carrier platform under the pushing action of the third spring, thus achieving assembly limitation of the charging connector on the carrier platform; but also for the limiting pressure plate to abut against the vehicle end connector to prevent the third spring from undergoing irreversible elastic deformation due to long-term excessive pressure.

[0035] In one embodiment, the ground charging device further includes a housing and a protective cover, with the lifting module at least partially housed within the housing;

[0036] The protective cover is fitted onto the outside of the linkage mechanism and is connected to the support platform and the housing respectively; and the protective cover is configured to retract or extend along the first direction in accordance with the folding or unfolding action of the linkage mechanism.

[0037] Understandably, the above-mentioned structural design enables the protective cover to provide continuous and effective physical protection for the linkage mechanism, preventing the intrusion of external debris. This ensures smooth and reliable operation of the linkage mechanism during folding or unfolding, and improves the overall protection performance of the ground-end charging device, which helps to further broaden the application scenarios of the ground-end charging device.

[0038] This application also provides a ground-end charging device for charging a vehicle, including a charging connector and the aforementioned lifting module; the charging connector is mounted on the support platform.

[0039] This application also provides a charging pile system, including a pile body, a charging gun, and the aforementioned ground-end charging device, wherein the ground-end charging device and the charging gun are respectively electrically connected to the pile body.

[0040] This application also provides a charging system, including a vehicle-end connector and the aforementioned ground-end charging device, wherein a charging connector is mounted on the support platform, and the charging connector can dock with the vehicle-end connector under the drive of the support platform.

[0041] Due to the application of the above solution, this application has the following advantages compared with the prior art:

[0042] The ground-end charging device, charging pile system, and charging system claimed in this application control the reciprocating motion of the drive seat along a second direction through a drive component, thereby driving the linkage mechanism hinged to the drive seat to fold or unfold. The folding or unfolding of the linkage mechanism converts the motion in the second direction into a drive to lift the support platform along a first direction. This allows the lifting module to achieve the lifting function without relying on a long vertical transmission stroke, thereby reducing the space required by the lifting module in the height direction of the ground-end charging device in the initial state. This is beneficial for the miniaturization design of the ground-end charging device and helps to broaden the application scenarios of the ground-end charging device. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of the ground charging device provided in this application.

[0045] Figure 2 This is a schematic diagram of the lifting module in its initial state in this application.

[0046] Figure 3 This is a schematic diagram of the structure of the lifting module provided in this application when it drives the charging connector to rise in a first direction during operation.

[0047] Figure 4 Another structural schematic diagram of the lifting module provided in this application when it drives the charging connector to rise in a first direction during operation.

[0048] Figure 5 This is a schematic diagram of the lifting module provided in this application when it is in the terminated state.

[0049] Figure 6 This is a schematic diagram of the structure when the charging connector is installed on the support platform in this application.

[0050] Figure 7 This is another structural diagram of the charging connector in this application when it is installed on the support platform.

[0051] Figure 8 This is a schematic diagram of the charging pile system provided in this application.

[0052] Figure 9 This is a schematic diagram of the charging system provided in this application.

[0053] Reference numerals: 10, Ground charging device; 11, Housing; 14, Lifting module; 141, Drive mechanism; 1411, Drive component; 1412, Drive seat; 1413, Drive screw; 1401, First linkage unit; 1402, Second linkage unit; 1403, Bending part; 142, Linkage mechanism; 1421, Drive linkage; 14211, First drive rod part; 1422, First linkage; 1423, Second linkage; 1424, Third linkage; 1425, Fourth linkage; 143, Support platform; 1431, Limiting pressure plate; 15, Charging connector; 151, Spring; 1511, First spring; 1512, Second spring; 1513, Third spring; 18, Protective cover; 10a, Pile body; 10b, Charging gun; 10c, Vehicle end connector. Detailed Implementation

[0054] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0055] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0058] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0059] Please see Figures 1 to 5 The ground charging device 10 provided in one embodiment of this application includes a lifting module 14, which includes a lifting drive mechanism 141, a linkage mechanism 142, and a support platform 143. The lifting drive mechanism 141 includes a drive member 1411 and a drive seat 1412. The drive member 1411 is connected to the drive seat 1412 for driving the drive seat 1412 to reciprocate along the second direction X. The power input end of the linkage mechanism 142 is hinged to the drive seat 1412. The support platform 143 is hinged to the power output end of the linkage mechanism 142 for carrying the charging connector 15. When the drive seat 1412 reciprocates along the second direction X, the drive seat 1412 can drive the linkage mechanism 142 to fold or unfold, so as to drive the support platform 143 to rise and fall along the first direction Z. The first direction Z and the second direction X form a preset angle. In other words, in this embodiment, the lifting module 14 controls the reciprocating motion of the drive seat 1412 along the second direction X via the drive member 1411, which drives the linkage mechanism 142 hinged to the drive seat 1412 to fold or unfold. The folding or unfolding of the linkage mechanism 142 converts the motion in the second direction X into a drive for the lifting platform 143 to move up and down along the first direction Z. This allows the lifting module 14 to achieve lifting functionality without relying on a long vertical transmission stroke, thereby reducing the space required by the lifting module 14 in the height direction of the ground charging device 10 in its initial state. This facilitates the miniaturization of the ground charging device 10 and helps to broaden its application scenarios. It should be noted that the initial state of the lifting module 14 specifically refers to the state when the linkage mechanism 142 is not unfolded and the entire module is at its lowest position in the first direction Z.

[0060] Here, the first direction Z is the vertical direction, and the preset angle between the second direction X and the first direction Z is 90°. Of course, it is not limited to this. For those skilled in the art, the first direction Z can also be set to the horizontal direction; or the preset angle between the second direction X and the first direction Z can be set to 88°, 89°, 92°, 93°, etc., which can be designed according to the usage requirements, and will not be elaborated here.

[0061] Please see Figures 2 to 5 In one embodiment, the lifting drive mechanism 141 further includes a drive screw 1413, which extends along the second direction X and is threadedly connected to the drive seat 1412. The drive member 1411 is pulsatorically connected to the drive screw 1413 to drive the drive screw 1413 to rotate. This integrates the installation space of the drive seat 1412 in the second direction X into the area where the drive screw 1413 is located, thereby reducing the installation space required in the second direction X when the lifting drive mechanism 141 is installed. At the same time, compared with the telescopic drive method to realize the movement of the drive seat 1412 along the second direction X, it is beneficial to reduce the overall size of the drive member 1411, thereby contributing to the miniaturization of the lifting module 14.

[0062] Here, the driving component 1411 is configured as a motor. The motor's shaft is connected to one end of the driving screw 1413 via a gearbox (not shown). The power output from the driving component 1411, after speed regulation by the gearbox, drives the driving screw 1413 to rotate. Through the threaded engagement between the driving screw 1413 and the driving seat 1412, the driving seat 1412 ultimately achieves reciprocating motion along the second direction X. Of course, this is not the only possibility. For those skilled in the art, the driving component 1411 can also be configured as a rotary cylinder; or, the driving component 1411 can be configured as an electric push rod, directly driving the reciprocating motion of the driving seat 1412 along the second direction X through the extension and retraction of the electric push rod. Further details will not be elaborated here.

[0063] Please see Figure 2 , Figure 3 In one embodiment, the number of linkage mechanisms 142 is set to multiple sets, and the multiple sets of linkage mechanisms 142 are arranged sequentially at intervals along the third direction Y. The reference plane jointly determined by the first direction Z and the second direction X forms a preset angle with the third direction Y, so that the lifting module 14 of this embodiment uses multiple sets of linkage mechanisms 142 to jointly support the support platform 143. This can improve the stability and balance of the support of the lifting module 14 on the support platform 143, thereby ensuring the consistency of the direction when the lifting module 14 drives the charging connector 15 to move up and down through the support platform 143 during operation.

[0064] Here, the preset angle between the reference plane jointly determined by the third direction Y and the first direction Z and the second direction X is 90°; and the number of the linkage mechanism 142 is set to two sets, with the two sets of linkage mechanism 142 disposed on two opposite sides of the drive seat 1412 in the second direction X. Of course, it is not limited to this. For those skilled in the art, the preset angle between the reference plane jointly determined by the third direction Y and the first direction Z and the second direction X can also be set to 80°, 85°, 93°, 97°, etc., and the number of the linkage mechanism 142 can also be set to three sets, four sets, or even more sets, which will not be elaborated here.

[0065] Please see Figure 4 , Figure 5 In one embodiment, the linkage mechanism 142 includes a first linkage unit 1401 and a second linkage unit 1402, which are stacked along the first direction Z and hinged to each other. That is, the linkage mechanism 142 in this embodiment forms a double-layer linkage structure. Compared to a single-layer linkage structure, this linkage mechanism 142 can reduce the requirements for the drive seat 1412's travel in the second direction X while achieving the same lifting height of the support platform 143. Compared to multi-layer linkage structures with three or more layers, this linkage mechanism 142 requires less space in the height direction of the ground charging device 10 in its initial state, thereby facilitating further miniaturization of the ground charging device 10.

[0066] Here, both the first linkage unit 1401 and the second linkage unit 1402 are configured as four-bar linkages. By utilizing the structural characteristics of the four-bar linkage, the structure of the linkage mechanism 142 can be simplified, and the positional maintenance capability and motion stability of the linkage mechanism 142 in the process of driving the support platform 143 to move up and down in the first direction Z can be improved.

[0067] Please see Figures 2 to 5In one embodiment, the second linkage unit 1402 includes a drive linkage 1421. One end of the drive linkage 1421 is hinged to the support platform 143, and the other end of the drive linkage 1421 is hinged to the drive seat 1412. The first linkage unit 1401 and the second linkage unit 1402 share a first linkage 1422. The first linkage 1422 extends along the second direction X, and one end of the first linkage 1422 is hinged to the drive linkage 1421. This allows the drive linkage 1421 to move under the drive of the drive seat 1412, and its driving force can simultaneously drive the first linkage unit 1401 and the second linkage unit 1402 to fold or unfold in coordination. This ensures the synchronicity of their movements during folding or unfolding, and avoids swaying or tilting of the support platform 143 during lifting due to asynchronous transmission. At the same time, sharing the first linkage 1422 can also reduce the number of linkages in the linkage mechanism 142, simplify its overall structure, and help reduce manufacturing costs.

[0068] Please see Figures 2 to 5 In one embodiment, the first linkage unit 1401 further includes a second linkage 1423 and a third linkage 1424. One end of the second linkage 1423 is hinged to the other end of the first linkage 1422, and the other end of the second linkage 1423 is fixedly disposed relative to the drive seat 1412 along the second direction X. One end of the third linkage 1424 is disposed on the side of the drive linkage 1421 away from the first linkage 1422, and is simultaneously hinged to one end of both the drive linkage 1421 and the first linkage 1422. The other end of the third linkage 1424 is fixedly disposed relative to the drive seat 1412 along the second direction X. In other words, in this embodiment, the ends of the second link 1423 and the third link 1424 that are away from the first link 1422 are set as fixed hinge points, so that when the drive link 1421 moves, it can drive the first link 1422 to move up and down along the first direction Z under the constraint and guidance of the second link 1423 and the third link 1424, and ensure that the first link 1422 is consistent in direction and stable in posture during the up and down process.

[0069] Please see Figures 2 to 5In one embodiment, the drive link 1421 includes a first drive rod portion 14211, which is disposed in the area where the first link unit 1401 is located. The second link 1423, the first drive rod portion 14211, and the third link 1424 are all provided with bent portions 1403. Utilizing the bending characteristics of the bent portions 1403, not only can the space occupied by the first link unit 1401 along the first direction Z be reduced when the lifting module 14 is in the terminated state, but it can also ensure the consistency of the direction when the link mechanism 142 drives the support platform 143 to rise and fall during folding or unfolding. It should be noted that the terminated state of the lifting module 14 specifically refers to the state corresponding to when the link mechanism 142 is fully unfolded and its entire structure is at its highest position in the first direction Z.

[0070] Please see Figure 4 , Figure 5 The bending angles of the bent portions 1403 on the second link 1423 and the third link 1424 are equal and set to P, and P satisfies 147°≤P≤157°; and the bending angle of the bent portion 1403 on the first drive rod 14211 is set to Q, and Q satisfies 158°≤Q≤168°. This ensures that the first link unit 1401 can meet the expansion required to achieve the expected lifting height, thereby ensuring that the support platform 143 can be stably lifted to the target position under the drive of the link mechanism 142.

[0071] Here, the bending angle P of the bending portion 1403 on the second link 1423 and the third link 1424 can be set to 147°, 149°, 152°, 155°, or 157°, etc.; while the bending angle Q of the bending portion 1403 on the first drive rod 14211 can be set to 158°, 160°, 163°, 165°, or 168°, etc. It should be noted that the specific values ​​of the bending angle P and the bending angle Q are not fixed. Those skilled in the art can flexibly adjust and select them according to actual usage needs, which will not be elaborated here.

[0072] Please see Figures 2 to 5 In one embodiment, the second linkage unit 1402 further includes a fourth linkage 1425, one end of which is hinged to the other end of the first linkage 1422, and the other end of which is used to hinge the support platform 143. In the area where the second linkage unit 1402 is located, the fourth linkage 1425 is arranged parallel to the drive linkage 1421, so that when the drive linkage 1421 is driven by the drive seat 1412 to move, it can drive the support platform 143 to move up and down along the first direction Z under the constraint and guidance of the fourth linkage 1425 and the drive linkage 1421, and ensure that the support platform 143 drives the charging connector 15 to maintain the same direction and stable posture during the lifting and lowering process.

[0073] In summary, when the lifting module 14 of this application is in operation, after receiving a start signal, the drive unit 1411 drives the drive seat 1412 to reciprocate along the second direction X via the drive screw 1413. When the drive seat 1412 moves, it will cause the part that is hinged to the drive linkage 1421 to generate linkage, thereby causing the linkage mechanism 142 to fold or unfold, and controlling the raising and lowering of the charging connector 15 in the first direction Z through the support platform 143.

[0074] Please see Figures 1 to 7 , Figure 9 In one embodiment, the ground charging device 10 further includes a charging connector 15, which is floatingly mounted on the lifting module 14 to make adaptive position adjustments when the charging connector 15 docks with the vehicle-end connector 10c. This allows the lifting module 14 to make adaptive passive adjustments using the floating degree of freedom of the charging connector 15 during the docking process, thereby compensating for positional and angular deviations between the charging connector 15 and the vehicle-end connector 10c, and ensuring the smoothness and reliability of the docking process between the charging connector 15 and the vehicle-end connector 10c.

[0075] Here, the charging connector 15 is installed in the support platform 143 of the lifting module 14 via a plug-in connection. Specifically, the charging connector 15 elastically abuts against the support platform 143 via a spring piece 151. The elastic deformation of the spring piece 151 allows for a floating adjustment margin in the installation position of the charging connector 15 on the support platform 143, thereby enabling the charging connector 15 to adaptively adjust during docking with the vehicle-end connector 10c, thus improving the positional tolerance during docking.

[0076] Please see Figure 6 , Figure 7In one embodiment, the charging connector 15 is provided with a first spring 1511, a second spring 1512, and a third spring 1513. The charging connector 15 is placed on the support platform 143 along the first direction Z via the third spring 1513. The first spring 1511 and the second spring 1512 are disposed around the periphery of the charging connector 15, and the charging connector 15 abuts against the support platform 143 via the first spring 1511 and the second spring 1512. Specifically, the charging connector 15 abuts against the support platform 143 in the second direction X via the first spring 1511, and the charging connector 15 abuts against the support platform 143 in the third direction Y via the second spring 1512. This allows the charging connector 15 to be adjusted in any direction on the support platform 143 by the elastic deformation of the first spring 1511, the second spring 1512, and the third spring 1513, respectively, in the second direction X, the third direction Y, and the first direction Z.

[0077] Please see Figure 1 , Figure 6 In one embodiment, a limiting pressure plate 1431 is provided on the support platform 143. The limiting pressure plate 1431 is located on the side of the charging connector 15 away from the third spring 1513 and abuts against the charging connector 15. This allows the limiting pressure plate 1431 to limit the charging connector 15 to the support platform 143. This not only prevents the charging connector 15 from detaching from the support platform 143 under the pushing action of the third spring 1513, thus achieving assembly limitation of the charging connector 15 on the support platform 143, but also allows the limiting pressure plate 1431 to abut against and limit the vehicle end connector 10c, so as to avoid irreversible elastic deformation of the third spring 1513 due to long-term excessive pressure.

[0078] Here, the number of limiting pressure plates 1431 is set to two, and the two limiting pressure plates 1431 are set on both sides of the bearing platform 143 in the third direction Y. Of course, it is not limited to this. For those skilled in the art, the number of limiting pressure plates 1431 can also be set to three, four, or even more, which will not be elaborated here.

[0079] Please see Figure 1 , Figure 9In one embodiment, the ground charging device 10 further includes a housing 11 and a protective cover 18. The lifting module 14 is at least partially housed within the housing 11. The protective cover 18 is sleeved on the outside of the linkage mechanism 142 and is connected to the support platform 143 and the housing 11 respectively. The protective cover 18 is configured to retract or extend along the first direction Z following the folding or unfolding action of the linkage mechanism 142, so that the protective cover 18 can provide continuous and effective physical protection for the linkage mechanism 142, preventing the intrusion of external debris. This ensures that the linkage mechanism 142 operates smoothly and reliably during folding or unfolding, and improves the overall protection performance of the ground charging device 10, which helps to further broaden the application scenarios of the ground charging device 10.

[0080] Here, the protective cover 18 is configured as a bellows cover. Of course, it is not limited to this. Those skilled in the art can also configure the protective cover 18 as a corrugated sleeve, etc., which will not be elaborated here.

[0081] Please see Figure 8 This application also provides a charging pile system, including a pile body 10a, a charging gun 10b, and the aforementioned ground-end charging device 10. The ground-end charging device 10 and the charging gun 10b are electrically connected to the pile body 10a, so that the charging pile system can select to charge the vehicle using the charging gun 10b or the ground-end charging device 10 according to usage needs.

[0082] Please see Figure 9 This application also provides a charging system, including a vehicle-end connector 10c and the aforementioned ground-end charging device 10. A charging connector 15 is installed on the support platform 143, and the charging connector 15 can be connected to the vehicle-end connector 10c under the drive of the support platform 143 to realize the electrical connection between the ground-end charging device 10 and the vehicle-end connector 10c.

[0083] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0084] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A ground-based charging device, characterized in that The ground-end charging device (10) includes a lifting module (14), which includes: The lifting drive mechanism (141) includes a drive member (1411) and a drive seat (1412). The drive member (1411) is connected to the drive seat (1412) for driving the drive seat (1412) to reciprocate along a second direction. Linkage mechanism (142), the power input end of which is hinged to the drive seat (1412); The support platform (143) is hinged to the power output end of the linkage mechanism (142) and is used to support the charging connector (15). When the drive seat (1412) reciprocates along the second direction, the drive seat (1412) can drive the linkage mechanism (142) to fold or unfold, so as to drive the support platform (143) to rise and fall along the first direction, and the first direction and the second direction form a preset angle.

2. The ground-end charging device according to claim 1, characterized in that, The linkage mechanism (142) includes a first linkage unit (1401) and a second linkage unit (1402), the first linkage unit (1401) and the second linkage unit (1402) are stacked along the first direction, and the first linkage unit (1401) and the second linkage unit (1402) are hinged to each other.

3. The ground-end charging device according to claim 2, characterized in that, The second linkage unit (1402) includes a drive linkage (1421), one end of which is used to hinge the support platform (143), and the other end of which is hinged to the drive seat (1412). The first link unit (1401) and the second link unit (1402) share a first link (1422), which extends along the second direction and one end of the first link (1422) is hinged to the drive link (1421).

4. The ground-end charging device according to claim 3, characterized in that, The first linkage unit (1401) further includes a second linkage (1423) and a third linkage (1424). One end of the second linkage (1423) is hinged to the other end of the first linkage (1422), and the other end of the second linkage (1423) is fixedly disposed relative to the drive seat (1412) along the second direction. One end of the third link (1424) is disposed on the side of the drive link (1421) away from the first link (1422), and is simultaneously hinged to one end of the drive link (1421) and one end of the first link (1422); the other end of the third link (1424) is fixedly disposed relative to the drive seat (1412) along the second direction.

5. The ground-end charging device according to claim 4, characterized in that, The drive link (1421) includes a first drive rod portion (14211), which is disposed in the area where the first link unit (1401) is located; The second link (1423), the first drive rod (14211), and the third link (1424) are all provided with a bent portion (1403).

6. The ground-end charging device according to claim 5, characterized in that, The bending angles of the bent portions (1403) on the second link (1423) and the third link (1424) are equal and set as P, and P satisfies 147°≤P≤157°; The bending angle of the bending portion (1403) on the first drive rod portion (14211) is set to Q, and Q satisfies 158°≤Q≤168°.

7. The ground terminal charging device according to claim 1, characterized in that, The lifting drive mechanism (141) further includes a drive screw (1413), which extends along the second direction and is threadedly connected to the drive seat (1412); The driving component (1411) is connected to the driving screw (1413) for driving the driving screw (1413) to rotate.

8. The ground-end charging device according to claim 1, characterized in that, The ground-side charging device (10) also includes a charging connector (15) which is floatingly mounted on the lifting module (14) to make adaptive position adjustments when the charging connector (15) mates with the vehicle-side connector (10c).

9. The ground terminal charging device according to claim 8, characterized in that, The charging connector (15) is provided with a first spring (1511), a second spring (1512) and a third spring (1513), and the charging connector (15) is placed on the support platform (143) along the first direction through the third spring (1513); The first spring (1511) and the second spring (1512) are disposed on the periphery of the charging connector (15), and the charging connector (15) abuts against the support platform (143) through the first spring (1511) and the second spring (1512).

10. The ground-end charging device according to claim 9, characterized in that, The support platform is provided with a limiting pressure plate (1431), which is located on the side of the charging connector (15) away from the third spring (1513) and abuts against the charging connector (15).

11. The ground-end charging device according to claim 1, characterized in that, The ground charging device (10) also includes a housing (11) and a protective cover (18), and the lifting module (14) is at least partially housed within the housing (11); The protective cover (18) is fitted on the outside of the linkage mechanism (142) and is connected to the support platform (143) and the housing (11) respectively; and the protective cover (18) is configured to retract or extend along the first direction following the folding or unfolding action of the linkage mechanism (142).

12. A charging pile system, characterized in that, It includes a pile body (10a), a charging gun (10b), and a ground-end charging device (10) as described in any one of claims 1 to 11. The ground-end charging device (10) and the charging gun (10b) are electrically connected to the pile body (10a).

13. A charging system, characterized in that, Includes a vehicle-end connector (10c) and a ground-end charging device (10) as described in any one of claims 1 to 11. A charging connector (15) is installed on the support platform (143), and the charging connector (15) can be connected to the vehicle end connector (10c) under the drive of the support platform (143).

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