Charging device

Abstract

Embodiments of the present application relate to the technical field of energy, and provide a charging device. The charging device comprises a device cabinet, a charging gun, a cable, and a balancer; the cable is connected to the charging gun and the device cabinet; the position of the balancer is higher than that of the charging gun; the balancer comprises a housing, an elastic member, and a connecting rope; the housing is fixed onto the device cabinet; the elastic member is located inside the housing; the elastic member is used for driving a part of the connecting rope to be wound in the housing and the other part of the connecting rope to extend out of the housing; and the part of the connecting rope located outside the housing is connected to the charging gun or the cable.

Description

Charging device

[0001] The present application claims priority to the Chinese patent application No. 202422367253.4, filed on September 25, 2024, and entitled "Charging device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of energy, in particular to a charging device. BACKGROUND

[0003] The charging device (for example, charging pile) as a device for providing power supplement can be fixed on the ground or wall and installed in the parking lot of public buildings or residential areas. The charging device includes a charging gun and a cable connected to the charging gun, and the specifications of the charging gun and the length of the cable can be set according to the requirements.

[0004] In some use scenarios, for example, in the charging scenarios of buses or heavy trucks, the weight of the charging gun and the cable in the charging device is heavy, and it is difficult for the user to take the charging gun for charging.

[0005] Utility model content

[0006] The present application provides a charging device, which bears part of the weight of the charging gun or the cable through the balancer, thereby facilitating the user to take the charging gun for charging.

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0008] The present application provides a charging device, which includes a device cabinet, a charging gun, a cable and a balancer; the cable connects the charging gun and the device cabinet; the position of the balancer is higher than that of the charging gun, and the balancer includes a shell, an elastic member and a connecting rope, the shell is fixed on the device cabinet, the elastic member is located in the shell, the elastic member is used to drive a part of the connecting rope to be wound in the shell, another part of the connecting rope extends out of the shell, and the part of the connecting rope outside the shell is connected to the charging gun or the cable.

[0009] The device cabinet is installed on the ground, and the current is transmitted to the charging gun through the cable, so that the charging gun can charge the device to be charged (for example, electric vehicle). The connecting rope of the balancer is connected to the charging gun or the cable, and the elastic member applies force to the connecting rope, so that the balancer lifts the charging gun or the cable, that is, the balancer can bear part of the weight of the charging gun, which facilitates the user to take the charging gun for charging and facilitates the user to drag the cable. During the process of pulling the charging gun away by the user, the connecting rope will be pulled out of the shell of the balancer, and during the process of returning the charging gun by the user, the connecting rope will be wound in the shell under the driving of the elastic member.

[0010] In an embodiment of the present application, the charging device further comprises a guide wheel, the guide wheel is located higher than the charging gun, the guide wheel is connected to the device cabinet, the guide wheel is rotatable relative to the device cabinet, and the rotation axis of the guide wheel is parallel to the horizontal direction, and the part of the connecting rope outside the shell is arranged on the guide wheel.

[0011] The guide wheel is equivalent to a fixed pulley, the guide wheel can change the direction of the connecting rope in the balancer, so that the connecting rope can extend downward after extending out of the shell of the balancer. In addition, the charging device equipped with the fixed pulley (guide wheel) is also beneficial to the movement of the connecting rope, and reduces the possibility of jamming or wear of the connecting rope during the process of being pulled out or wound into the shell.

[0012] In an embodiment of the present application, the charging device further comprises a support, the support is fixed to the top of the device cabinet, the support protrudes to the side of the device cabinet towards the charging gun, and the shell of the balancer is fixed to the part of the support protruding to the side of the device cabinet.

[0013] The support can support the balancer, and since the support protrudes to the side of the device cabinet, the part of the support protruding is located above the position of the charging gun (the storage position of the charging gun when not in use), so that the balancer can be installed above the charging gun through the support, and the connecting rope is located to the side of the device cabinet, which is beneficial to the connection of the connecting rope with the charging gun or the cable, and also reduces the possibility of interference of the device cabinet with the extension or winding of the cable.

[0014] In an embodiment of the present application, the charging device further comprises a mounting plate, the mounting plate is fixed to the support, the shell of the balancer is fixed to the mounting plate, and the mounting plate is provided with a through hole, and the part of the connecting rope outside the shell passes through the through hole.

[0015] The mounting plate is fixed to the support, which provides a position for the installation of the balancer, and the connecting rope extends downward from the through hole on the mounting plate, the through hole limits the connecting rope, and reduces the possibility of random swinging of the connecting rope. In addition, the mounting plate can also play the role of a decorative plate, and the mounting plate can shield and decorate the support, so that the charging device is more beautiful.

[0016] In an embodiment of the present application, the charging device further comprises two first rotating wheels, the two first rotating wheels are located at the through hole, the two first rotating wheels are connected to the support, the two first rotating wheels are rotatable relative to the support, the rotation axes of the two first rotating wheels are parallel to each other and parallel to the horizontal direction, and the two first rotating wheels have a gap for the connecting rope to pass through.

[0017] Pulling the charging gun will make the connecting rope sway, and in the process of the connecting rope swaying, one of the first rotating wheels will be touched, and the rotation of the first rotating wheel can assist the movement of the connecting rope, for example, in the process of pulling the connecting rope downward, the connecting rope will sway and touch one of the first rotating wheels, and under the assistance of the first rotating wheel, the connecting rope can be smoothly pulled out. Similarly, in the process of winding the connecting rope into the shell by the elastic member, if the connecting rope touches one of the first rotating wheels, under the assistance of the first rotating wheel, the connecting rope can also be smoothly wound into the shell.

[0018] In an embodiment of the present application, the charging device further comprises two second rotating wheels, the two second rotating wheels are located at the through port, the two second rotating wheels are connected to the support, the two second rotating wheels can rotate relative to the support, the rotation axes of the two second rotating wheels are parallel to each other and parallel to the horizontal direction; the rotation axis of each first rotating wheel is perpendicular to the rotation axis of each second rotating wheel, and the two first rotating wheels and the two second rotating wheels enclose a space for the connecting rope to pass through.

[0019] The connecting rope passes through the space enclosed by the two first rotating wheels and the two second rotating wheels, and the two first rotating wheels and the two second rotating wheels jointly limit the movement of the connecting rope, reducing the possibility of random swaying of the connecting rope. In addition, the two first rotating wheels and the two second rotating wheels are both arranged at the through port, and in the process of movement of the connecting rope, contacting any one of the two first rotating wheels and the two second rotating wheels, the contacted first rotating wheel or second rotating wheel can assist the movement of the connecting rope, reducing the influence of the edge of the mounting plate enclosing the through port on the movement of the connecting rope.

[0020] In an embodiment of the present application, a plurality of through holes for gas or liquid to pass through are arranged on the mounting plate.

[0021] The through holes can make water flow through the mounting plate, and arranging the through holes on the mounting plate reduces the possibility of a large amount of water accumulating on the mounting plate. In addition, the through holes can also make wind flow through, reducing the possibility of the mounting plate being blown off in harsh environments.

[0022] In an embodiment of the present application, the charging device further comprises a mounting seat and a suspender, the mounting seat has a socket for the charging gun to be inserted into, the mounting seat is located below the support, and the suspender is fixed at one end to the support and at the other end to the mounting seat.

[0023] In some cases, the mounting seat can be specially arranged for placing the charging gun, wherein the mounting seat can be hung below the support by the suspender, so that the support bears the functions of installing the balancer and the mounting seat, which can make full use of the support.

[0024] In an embodiment of the present application, the charging device further comprises a fixing clamp and an avoiding rod. The fixing clamp is sleeved on the cable and clamps the cable. The avoiding rod is bent and comprises a first part and a second part intersecting in an extending direction. One end of the first part is movably connected with the fixing clamp, and the first part extends towards the outside of the fixing clamp. The second part is fixed on the end of the first part away from the cable. The end of the connecting rope outside the shell is fixed on the second part.

[0025] The fixing clamp is sleeved and fixed on the cable, and the connecting rope is connected with the fixing clamp through the avoiding rod. The avoiding rod is bent, and the connecting rope is connected to the second part of the avoiding rod. In this way, the connecting rope is located on the side of the charging gun. Since the fixing clamp is clamped on the cable, the user's arm is located at the position of the avoiding rod during the process of grabbing the charging gun. The bending of the avoiding rod keeps the second part and the connecting rope away from the user's arm, or to some extent, avoids the user's arm, thereby reducing the possibility of interference of the connecting rope with the user's hand. In addition, the avoiding rod is movably connected with the fixing clamp, which is convenient for the user to use the charging gun.

[0026] In an embodiment of the present application, the fixing clamp comprises a first clamping part, a second clamping part and a threaded member. The threaded member connects the first clamping part and the second clamping part, and the cable is clamped between the first clamping part and the second clamping part.

[0027] During installation of the fixing clamp, the first clamping part and the second clamping part can be installed on different sides of the cable, and then the first clamping part and the second clamping part are locked by the threaded member to clamp the cable.

[0028] In an embodiment of the present application, the fixing clamp comprises a first clamping part, a second clamping part and a threaded member. One end of the first clamping part is hingedly connected with one end of the second clamping part, and the other end of the first clamping part is fixed with the other end of the second clamping part by the threaded member. The cable is clamped between the first clamping part and the second clamping part.

[0029] During installation of the fixing clamp, the opening between the first clamping part and the second clamping part can be opened, the cable is installed between the first clamping part and the second clamping part, and then the first clamping part and the second clamping part are locked by the threaded member to clamp the cable.

[0030] In an alternative embodiment, the charging device further comprises a protective cover. The protective cover is fixed on the device cabinet, and the protective cover is buckled outside the balancer.

[0031] The protective cover is buckled outside the balancer to protect the balancer, thereby reducing the possibility of damage to the balancer and prolonging the service life of the balancer.

[0032] In an alternative embodiment, the charging device further comprises a power conversion device for converting alternating current into direct current, the power conversion device being located in the device cabinet, or the power conversion device being located outside the device cabinet, and the cable electrically connecting the power conversion device and the charging gun.

[0033] The power conversion device is capable of converting alternating current from the power grid into direct current, and powering the charging gun with the direct current, so that the charging gun is capable of powering the device to be charged. In the case that the power conversion device is located in the device cabinet, the charging device is an integrated charging device. In the case that the power conversion device is located outside the device cabinet, the device cabinet is the cabinet body of the charging terminal, and the charging device can additionally be provided with a charging host specially used for accommodating the power conversion device. BRIEF DESCRIPTION OF DRAWINGS

[0034] FIG. 1 is a schematic diagram of the overall structure of a charging device according to an embodiment of the present application;

[0035] FIG. 2 is a schematic diagram of the overall structure of another charging device according to an embodiment of the present application;

[0036] FIG. 3 is a schematic diagram of the external structure of a balancer according to an embodiment of the present application;

[0037] FIG. 4 is a schematic diagram of the internal structure of a balancer according to an embodiment of the present application;

[0038] FIG. 5 is a schematic diagram of the structure of a guide wheel according to an embodiment of the present application;

[0039] FIG. 6 is a schematic diagram of the structure of a mounting plate according to an embodiment of the present application;

[0040] FIG. 7 is a schematic diagram of the structure of a through port according to an embodiment of the present application;

[0041] FIG. 8 is a schematic diagram of the structure of a first rotating wheel and a second rotating wheel according to an embodiment of the present application;

[0042] FIG. 9 is a diagram of the positional relationship of a guide wheel, a first rotating wheel and a second rotating wheel according to an embodiment of the present application;

[0043] FIG. 10 is a schematic diagram of the structure of a protective cover according to an embodiment of the present application;

[0044] FIG. 11 is an enlarged view of A in FIG. 10;

[0045] FIG. 12 is a schematic diagram of the structure of a fixing clamp according to an embodiment of the present application;

[0046] FIG. 13 is a schematic diagram of the structure of another fixing clamp according to an embodiment of the present application;

[0047] Fig. 14 is a structural schematic diagram of a mounting seat and a boom according to an embodiment of the present application;

[0048] Fig. 15 is a structural schematic diagram of another charging device according to an embodiment of the present application.

[0049] 100 - charging device; 1 - charging host; 2 - power conversion device; 3 - device cabinet; 4 - charging gun; 5 - cable; 51 - first section; 52 - second section; 6 - balancer; 61 - housing; 62 - elastic member; 63 - connecting rope; 64 - winding tower wheel; 7 - support; 71 - connecting rod; 72 - shielding plate; 73 - support rod; 74 - rotating frame; 8 - guide wheel; 81 - groove; 9 - mounting plate; 91 - through port; 92 - through hole; 10 - first rotating wheel; 11 - second rotating wheel; 12 - mounting frame; 13 - mounting seat; 131 - socket; 14 - boom; 15 - fixing clamp; 151 - first clamping part; 152 - second clamping part; 153 - threaded member; 154 - rotating shaft; 16 - avoiding rod; 161 - first part; 162 - second part; 1621 - lifting ring; 17 - protective cover; 18 - flexible pad. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application.

[0051] In the present application, unless specifically defined and limited otherwise, the terms "upper", "lower", "front", "back", "left", "right" and the like indicate the orientation or positional relationship as shown in the drawings, which can include, but are not limited to, the orientation of the components shown in the drawings, and these directional terms can be relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation of the components shown in the drawings, and cannot be understood as a limitation on the present application.

[0052] In the present application, the terms "first", "second", and the like are only for descriptive purposes, and are used to distinguish one element from another element, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more of the features.

[0053] In the present application, unless specifically defined and limited otherwise, the meaning of "multiple" is two or more.

[0054] In addition, in the present application, the word "exemplary" or "for example" is used to mean serving as an example, instance, or illustration. Any embodiment or design solution described as "exemplary" or "for example" in the present application should not be construed as preferred or advantageous over other embodiments or design solutions. Rather, the use of "exemplary" or "for example" is intended to present concepts in a concrete manner.

[0055] In the drawings of the embodiments of the present application, the entity structures of components, assemblies, etc. are represented by guide lines; the hollow structures of openings, holes, spaces, cavities, etc. are represented by guide lines with arrows.

[0056] The charging device 100 provided by the embodiments of the present application can be a split charging pile. FIG. 1 exemplarily shows the structure of a charging device 100 (split charging pile). Referring to FIG. 1, the charging device 100 includes a charging host 1, a power conversion device 2, a device cabinet 3, and a charging gun 4. The power conversion device 2 is located outside the device cabinet 3, for example, the power conversion device 2 is located in the charging host 1. Each device cabinet 3 corresponds to one or more charging guns 4. Each device cabinet 3 and the one or more charging guns 4 thereon form part of a charging terminal. That is, in the example shown in FIG. 1, the charging device 100 includes one charging host 1 and multiple charging terminals, each charging terminal includes a device cabinet 3 and a charging gun 4. In some other examples, each charging terminal includes a device cabinet 3 and multiple charging guns 4.

[0057] In some other examples, in the same charging device 100, one charging terminal includes a device cabinet 3 and one charging gun 4, and another charging terminal includes a device cabinet 3 and multiple charging guns 4.

[0058] In addition, the charging device 100 further includes a cable 5. Referring to FIG. 1, each cable 5 includes a first segment 51 and a second segment 52. The first segment 51 connects the charging host 1 and the device cabinet 3, and the second segment 52 connects the device cabinet 3 and the charging gun 4. The first segment 51 is electrically connected to the power conversion device 2, and the second segment 52 is electrically connected to the charging gun 4. That is, the cable 5 electrically connects the power conversion device 2 and the charging gun 4.

[0059] The power conversion device 2 is used to convert alternating current into direct current. That is, the input end of the power conversion device 2 is used to receive alternating current, and the output end of the power conversion device 2 is used to output direct current. The power conversion device 2 delivers the output direct current to the charging gun 4 through the cable 5, so that the charging gun 4 can charge the device to be charged (for example, an electric vehicle).

[0060] The charging device 100 can also be an integrated charging pile. FIG. 2 shows an example structure of another charging device 100 (an integrated charging pile), which includes a device cabinet 3, a power conversion device 2, a charging gun 4, and a cable 5. The power conversion device 2 is located in the device cabinet 3. Each cable 5 is connected between the device cabinet 3 and the charging gun 4, and the cable 5 also electrically connects the power conversion device 2 and the charging gun 4, so that the direct current output by the power conversion device 2 is transmitted to the charging gun 4 through the cable 5.

[0061] In addition, the charging device 100 also includes a balancer 6. FIG. 3 shows an example external structure of a balancer 6. Referring to FIGS. 2 and 3, the balancer 6 is located above the charging gun 4. In this application, the balancer 6 is located above the charging gun 4, which means that the position of the balancer 6 is higher than that of the charging gun 4, not that the balancer 6 is directly above the charging gun 4. In addition, the position limitation in this application with reference to the charging gun 4 is based on the state that the charging gun 4 is not taken, that is, the state that the charging gun 4 is plugged into the plug-in position, and at this time, the charging gun 4 has not been taken down for charging the device.

[0062] FIG. 4 shows an example internal structure of a balancer 6. Referring to FIG. 4, the balancer 6 includes a housing 61, an elastic member 62, and a connecting rope 63. The elastic member 62 is located in the housing 61, and the elastic member 62 is used to drive a part of the connecting rope 63 to be wound in the housing 61. For example, the balancer 6 also includes a winding tower wheel 64, which is rotationally connected in the housing 61 (the winding tower wheel 64 can rotate relative to the housing 61), and the elastic member 62 is a scroll spring, and the winding tower wheel 64 is connected with the housing 61 through the elastic member 62. For example, when the force applied to the winding tower wheel 64 is greater than the elastic force of the elastic member 62, the winding tower wheel 64 can be rotated in the clockwise direction under the force; when the force applied to the winding tower wheel 64 disappears, or when the force applied to the winding tower wheel 64 is less than the elastic force of the elastic member 62, the elastic member 62 drives the winding tower wheel 64 to rotate in the counterclockwise direction. A part of the connecting rope 63 is wound on the winding tower wheel 64. When the force to pull the connecting rope 63 is large enough, the connecting rope 63 can drive the winding tower wheel 64 to rotate; when there is no external force to pull the connecting rope 63, or when the force to pull the connecting rope 63 is small, the elastic member 62 drives a part of the connecting rope 63 to be wound in the housing 61 through the winding tower wheel 64.

[0063] The balancer 6 can be any device that can achieve the above functions, and the elastic member 62 can also be an elastic structure such as an elastic rope or a torsional spring. The details of the balancer 6 are not limited in this application.

[0064] Referring to FIG. 2 and FIG. 3, the housing 61 of the balancer 6 is fixed on the equipment cabinet 3, a part of the connecting rope 63 is located in the housing 61, and another part of the connecting rope 63 extends out of the housing 61, and the part of the connecting rope 63 located outside the housing 61 is connected with the charging gun 4 or the cable 5. Among them, FIG. 2 shows the case that the connecting rope 63 is connected with the cable 5, and in some other examples, the connecting rope 63 is connected with the charging gun 4. Among them, the connecting rope 63 of the balancer 6 is connected with the charging gun 4 or the cable 5, and the force applied to the connecting rope 63 by the elastic member 62 enables the balancer 6 to lift the charging gun 4 or the cable 5, that is, the balancer 6 can bear part of the weight of the charging gun 4 and the cable 5, which is conducive to the user to take the charging gun 4 for charging, and is also convenient for the user to drag the cable 5.

[0065] When the user pulls the charging gun 4 away, the connecting rope 63 will be pulled out of the housing 61 of the balancer 6, and when the user returns the charging gun 4, the connecting rope 63 will be wound in the housing 61 under the drive of the elastic member 62.

[0066] Among them, the balancer 6 can be fixed on the equipment cabinet 3 by any suitable means, for example, referring to FIG. 2 and FIG. 3, the charging device 100 further comprises a bracket 7, and the balancer 6 is fixed on the top of the equipment cabinet 3 through the bracket 7. The bracket 7 is fixed on the top of the equipment cabinet 3, and the bracket 7 protrudes to the side of the equipment cabinet 3 towards the charging gun 4, that is, in the case that the charging gun 4 is not taken, the charging gun 4 will be placed in a special place for placing the charging gun 4, for example, the charging gun 4 can be inserted on the equipment cabinet 3, or the charging gun 4 can be inserted in a special gun seat, at this time, the charging gun 4 is located on one side of the equipment cabinet 3, and the bracket 7 protrudes from the top of the equipment cabinet 3 to the side where the charging gun 4 is located. The housing 61 of the balancer 6 is fixed on the part of the bracket 7 protruding to the side of the equipment cabinet 3, so that the balancer 6 is located above the charging gun 4 (in the state that the charging gun 4 is not taken).

[0067] The bracket 7 can be any suitable frame structure, for example, referring to FIG. 3, the bracket 7 comprises a plurality of connecting rods 71, and the plurality of connecting rods 71 are fixed (for example, by bolts) to each other to form the main part of the bracket 7. In addition, the bracket 7 further comprises a square-shaped shielding plate 72, which surrounds the main part formed by the plurality of connecting rods 71, and plays a decorative and protective role. In some other examples, the bracket 7 can also not be provided with the shielding plate 72, and only be formed by a plurality of connecting rods 71 fixed to each other. In some other examples, the bracket 7 can also be a cuboid frame formed by a plurality of metal rods, which is not limited in the present application.

[0068] The bracket 7 can be fixed to the equipment cabinet 3 in any suitable manner. In the example shown in FIG. 3, the bracket 7 further comprises a support rod 73 which is bent, for example, in a "C" shape, and is provided with bolt holes (not shown in the drawings) through which bolts can pass, which can be round holes or waist-shaped holes (i.e., long strip-shaped holes), and the bolts pass through the bolt holes and lock the bracket 7 to the equipment cabinet 3. In the case where the bolt holes are waist-shaped holes, the bracket 7 can be installed with an adjustable distance, which can absorb construction errors. In other examples, the bracket 7 can also be fixed to the equipment cabinet 3 by adhesion or welding, which is not specifically limited in the present application.

[0069] The bracket 7 can support the balancer 6, and since the bracket 7 protrudes to the side of the equipment cabinet 3, the balancer 6 can be installed above the charging gun 4 through the bracket 7, so that the connecting cord 63 is located to the side of the equipment cabinet 3, which facilitates the connection of the connecting cord 63 with the charging gun 4 or the cable 5, and reduces the possibility of interference of the equipment cabinet 3 with the extension or winding of the cable 5.

[0070] In some other examples, the balancer 6 can be directly fixed to the equipment cabinet 3 by bolts or rivets, without the need for a bracket 7 or other support structure.

[0071] In some examples, the charging device 100 further comprises a guide wheel 8. FIG. 5 shows an example structure of the guide wheel 8, in which the position of the guide wheel 8 is higher than the position of the charging gun 4 (the position of the charging gun 4 can be referred to with reference to FIG. 2). The guide wheel 8 does not necessarily have to be directly above the charging gun 4, as long as the position of the guide wheel 8 is higher than the position of the charging gun 4. The guide wheel 8 is rotatably connected to the equipment cabinet 3 (the guide wheel 8 can rotate relative to the equipment cabinet 3). For example, in the case where the charging device 100 comprises a bracket 7, the bracket 7 is fixed (for example, by bolts) to a rotating frame 74, and the guide wheel 8 is rotatably connected (for example, by a rotating shaft or a bearing) to the rotating frame 74. The rotating axis of the guide wheel 8 is parallel to the horizontal direction. It should be noted that "parallel" herein allows an error of ±20°. The part of the connecting cord 63 outside the housing 61 is arranged on the guide wheel 8.

[0072] The guide wheel 8 acts as a fixed pulley, which can change the direction of the connecting cord 63 outside the housing 61, so that the connecting cord 63 can extend downward after extending out of the housing 61 of the balancer 6. In addition, the provision of the guide wheel 8 also facilitates the movement of the connecting cord 63, and reduces the possibility of jamming or wear of the connecting cord 63 during the process of being pulled out or wound into the housing 61.

[0073] In addition, in order to limit the connection rope 63, referring to FIG. 5, the middle region of the outer circumferential surface of the guide wheel 8 (the outer circumferential surface around the rotation axis of the guide wheel 8) can be inwardly recessed, that is, the diameter of the guide wheel 8 gradually decreases from both ends to the middle, for example, the top of the guide wheel 8 is in a "U" shape or a "V" shape. In this way, the outer circumferential surface of the guide wheel 8 forms a groove 81 for accommodating the connection rope 63. By placing the connection rope 63 in the inwardly recessed groove 81 of the guide wheel 8, the possibility of the connection rope 63 being separated from the guide wheel 8 is reduced.

[0074] In other examples, the guide wheel 8 can be rotationally connected to the equipment cabinet 3 instead of being fixed to the support 7. For example, the equipment cabinet 3 is provided with a rotating frame 74 (not shown in the drawings), and the guide wheel 8 is rotationally connected to the rotating frame 74 of the equipment cabinet 3.

[0075] In the case where the charging device 100 includes the support 7, in order to facilitate the installation of the balancer 6 and other structures, the charging device 100 further includes a mounting plate 9. FIG. 6 exemplarily shows a structure of the mounting plate 9, and the mounting plate 9 is fixed to the support 7. In the example shown in FIG. 6, only the portion of the support 7 protruding to the side of the equipment cabinet 3 is fixed with the mounting plate 9, and the portion of the support 7 located directly above the equipment cabinet 3 is not provided with the mounting plate 9. In other examples, the entire bottom of the support 7 is covered by the mounting plate 9.

[0076] Referring to FIG. 6, in the case where the charging device 100 further includes the mounting plate 9, the housing 61 of the balancer 6 can be fixed to the mounting plate 9, and in the case where the charging device 100 further includes the guide wheel 8, the guide wheel 8 can also be fixed to the mounting plate 9, that is, the mounting plate 9 provides a position for the installation of the balancer 6 and other structures. In addition, the mounting plate 9 can also serve as a decorative plate, which can shield and decorate the support 7, and make the overall charging device 100 more beautiful.

[0077] The mounting plate 9 is also provided with a through hole 91. FIG. 7 exemplarily shows a structure of the through hole 91. Referring to FIG. 7, the portion of the connection rope 63 located outside the housing 61 passes through the through hole 91. The connection rope 63 extends downward from the through hole 91 on the mounting plate 9, and the through hole 91 limits the connection rope 63, reducing the possibility of the connection rope 63 shaking randomly.

[0078] In addition, in some examples, referring to FIG. 7, the mounting plate 9 is provided with a plurality of through holes 92, which can allow water to flow through the mounting plate 9 and drip downward. By providing the through holes 92 on the mounting plate 9, the possibility of a large amount of water accumulating on the mounting plate 9 is reduced. In addition, the through holes 92 can also allow air to flow through, which reduces the possibility of the mounting plate 9 being blown off in harsh environments. In this application, the plurality of through holes 92 can be arranged on the mounting plate 9 in any suitable manner, which is not limited in this application.

[0079] In some examples, the charging device 100 further comprises two first rotating wheels 10 and two second rotating wheels 11, and FIG. 8 exemplarily shows the structure of the two first rotating wheels 10 and the two second rotating wheels 11, both of which are rotatably connected to the support 7 (both of which can rotate relative to the support 7). For example, the charging device 100 further comprises a mounting frame 12 mounted in the through port 91, and the two first rotating wheels 10 and the two second rotating wheels 11 are rotatably connected to the mounting frame 12 through a rotating shaft structure or a bearing. Among them, the rotating axes of the two first rotating wheels 10 are parallel to each other and parallel to the horizontal direction, the rotating axes of the two second rotating wheels 11 are parallel to each other and parallel to the horizontal direction, and the rotating axis of each first rotating wheel 10 is perpendicular to the rotating axis of each second rotating wheel 11. It should be noted that "parallel" and "perpendicular" here allow an error of ±20°.

[0080] Both of the two first rotating wheels 10 and the two second rotating wheels 11 are located at the through port 91, for example, both of the two first rotating wheels 10 and the two second rotating wheels 11 extend into or through the through port 91, and the two first rotating wheels 10 and the two second rotating wheels 11 enclose a space (indicated by arrow S1) for the connecting rope 63 to pass through. In some examples, the space (indicated by arrow S1) enclosed by the two first rotating wheels 10 and the two second rotating wheels 11 is located inside the through port 91. Among them, the two first rotating wheels 10 and the two second rotating wheels 11 jointly limit the movement of the connecting rope 63, reducing the possibility of the connecting rope 63 shaking randomly.

[0081] In addition, both of the two first rotating wheels 10 and the two second rotating wheels 11 are arranged at the through port 91, and in the process of movement of the connecting rope 63, it is possible to contact any one of the two first rotating wheels 10 and the two second rotating wheels 11, and the rotation of the first rotating wheel 10 or the second rotating wheel 11 can assist the movement of the connecting rope 63, reducing the influence of the edge of the mounting plate 9 enclosing the through port 91 on the movement of the connecting rope 63.

[0082] For example, when using the charging gun 4 to charge the device to be charged, it is necessary to pull the connecting rope 63, and in the process of pulling the connecting rope 63 downward, the connecting rope 63 will shake and contact one of the first rotating wheel 10 or the second rotating wheel 11, and under the rotation of the first rotating wheel 10 or the second rotating wheel 11, the connecting rope 63 can be smoothly pulled out. Similarly, in the process of winding the connecting rope 63 into the shell 61 by the elastic member 62, if the connecting rope 63 contacts one of the first rotating wheel 10 or the second rotating wheel 11, under the rotation of the first rotating wheel 10 or the second rotating wheel 11, the connecting rope 63 can also be smoothly retracted.

[0083] In some other examples, the two first rotating wheels 10 and the two second rotating wheels 11 are both located outside the through hole 91, that is, although the two first rotating wheels 10 and the two second rotating wheels 11 are located at the through hole 91, the two first rotating wheels 10 and the two second rotating wheels 11 do not extend into or pass through the through hole 91, and in such examples, the two first rotating wheels 10 and the two second rotating wheels 11 are both located above or below the through hole 91.

[0084] In some other examples, the charging device 100 further comprises two first rotating wheels 10 without the two second rotating wheels 11, the two first rotating wheels 10 are rotationally connected to the support 7 (the two first rotating wheels 10 can rotate relative to the support 7), the rotation axes of the two first rotating wheels 10 are parallel to each other and parallel to the horizontal direction, the two first rotating wheels 10 are located at the through hole 91, and the two first rotating wheels 10 have a gap for the connecting rope 63 to pass through. In the process of the swinging of the connecting rope 63, one of the first rotating wheels 10 is touched, and the rotation of the first rotating wheel 10 can assist the movement of the connecting rope 63.

[0085] In some other examples, the charging device 100 further comprises two second rotating wheels 11 without the two first rotating wheels 10, and in the process of the swinging of the connecting rope 63, one of the second rotating wheels 11 is touched, and the rotation of the second rotating wheel 11 can assist the movement of the connecting rope 63.

[0086] FIG. 9 exemplarily shows the case where the charging device 100 comprises the guide wheel 8, the two first rotating wheels 10 and the two second rotating wheels 11, and is intended to show the positional relationship of the guide wheel 8, the first rotating wheels 10 and the second rotating wheels 11. Referring to FIG. 9, the guide wheel 8 is located above the through hole 91, that is, the guide wheel 8 is located above the two first rotating wheels 10 and the two second rotating wheels 11, the connecting rope 63 is arranged on the guide wheel 8 and passes through the space surrounded by the two first rotating wheels 10 and the two second rotating wheels 11 (also passes through the through hole 91).

[0087] In order to protect the balancer 6, the charging device 100 further comprises a protective cover 17, and FIG. 10 exemplarily shows the structure of a protective cover 17. Referring to FIGS. 9 and 10, the protective cover 17 is fixed on the device cabinet 3, and the protective cover 17 is buckled (or said to be covered) outside the balancer 6 to protect the balancer 6, thereby reducing the possibility of damage to the balancer 6 and prolonging the service life of the balancer 6. In the case where the charging device 100 further comprises the guide wheel 8, the protective cover 17 is also buckled outside the guide wheel 8, and the protective cover 17 also protects the guide wheel 8.

[0088] Figure 11 is an enlarged view of A in Figure 10, with reference to Figure 11, the charging device 100 further comprises a fixing clamp 15 and an avoiding rod 16. The fixing clamp 15 is sleeved on the cable 5 and clamps the cable 5, and the avoiding rod 16 is bent and comprises a first portion 161 and a second portion 162 extending in intersecting directions (for example, perpendicular). Wherein, one end of the first portion 161 is movably connected (rotatably connected or universally connected) with the fixing clamp 15, the first portion 161 extends towards the outside of the fixing clamp 15, for example, the first portion 161 extends towards the outside of the fixing clamp 15 along the radial direction of the cable 5, and the second portion 162 is fixed at the end of the first portion 161 away from the cable 5, for example, the avoiding rod 16 is in the shape of "L", and the end of the connecting rope 63 outside the shell 61 is fixed on the second portion 162.

[0089] Wherein, in the example that the first portion 161 is rotatably connected with the fixing clamp 15 (the first portion 161 can rotate relative to the fixing clamp 15), the first portion 161 can be rotatably connected with the fixing clamp 15 through the shaft fitting, or the first portion 161 can be rotatably connected with the fixing clamp 15 through a bearing. In the above examples, the avoiding rod 16 can rotate relative to the fixing clamp 15 along a rotation axis, which can be parallel to the radial direction of the cable 5. In other examples, the first portion 161 can be universally connected with the fixing clamp 15 through a universal joint (for example, a ball joint). In this example, the avoiding rod 16 can be inclined in any direction relative to the fixing clamp 15, and the avoiding rod 16 can rotate relative to the fixing clamp 15 along multiple different rotation axes. By movably connecting the avoiding rod 16 with the fixing clamp 15, the user can easily access the charging gun 4.

[0090] In addition, the avoiding rod 16 is bent, and the connecting rope 63 is connected to the second portion 162 of the avoiding rod 16, so that the connecting rope 63 is located to the side of the charging gun 4. Since the fixing clamp 15 is clamped on the cable 5, during the user grabbing the charging gun 4, the user's arm will be located at the position of the avoiding rod 16. The bending of the avoiding rod 16 keeps the second portion 162 and the connecting rope 63 away from the user's arm to a certain extent, which avoids the user's arm to a certain extent, and reduces the possibility of the connecting rope 63 interfering with the user's hand during the user grabbing the charging gun 4 and using the charging gun 4.

[0091] The fixing clamp 15 can be any suitable structure. For example, FIG. 12 shows an example structure of the fixing clamp 15. Referring to FIG. 12, the fixing clamp 15 includes a first clamping part 151, a second clamping part 152, and a threaded part 153 (e.g., a bolt). The first clamping part 151 and the second clamping part 152 can each be a half-ring structure. The first clamping part 151 and the second clamping part 152 are installed on different sides of the cable 5, and then the first clamping part 151 and the second clamping part 152 are locked by the threaded part 153, so that the cable 5 is clamped between the first clamping part 151 and the second clamping part 152. In this example, the first part 161 is rotatably connected to the second clamping part 152 (the first part 161 can rotate relative to the second clamping part 152).

[0092] For another example, FIG. 13 shows another example structure of the fixing clamp 15. The fixing clamp 15 includes a first clamping part 151, a second clamping part 152, and a threaded part 153. One end of the first clamping part 151 is hingedly connected to one end of the second clamping part 152 (e.g., by a rotating shaft 154). During installation of the fixing clamp 15, the opening between the first clamping part 151 and the second clamping part 152 can be opened, the cable 5 is installed between the first clamping part 151 and the second clamping part 152, and then the first clamping part 151 and the second clamping part 152 are locked by the threaded part 153 (the threaded part 153 and the rotating shaft 154 are located at different ends of the fixing clamp 15), so that the cable 5 is clamped between the first clamping part 151 and the second clamping part 152.

[0093] Referring back to FIG. 11, in some examples, the charging device 100 further includes a flexible pad 18 fixed between the fixing clamp 15 and the cable 5. For example, referring to FIG. 12, the inner side of the first clamping part 151 and the inner side of the second clamping part 152 are each provided with a flexible pad 18. After the first clamping part 151 and the second clamping part 152 clamp the cable 5, the flexible pad 18 is located between the fixing clamp 15 and the cable 5, which can reduce the possibility of damage to the cable 5 by the fixing clamp 15.

[0094] In addition, in some examples, referring to FIG. 12, the second part 162 of the avoidance rod 16 can be provided with a lifting ring 1621, and the end of the connecting rope 63 can be provided with a hook (not shown in the figure). The hook and the lifting ring 1621 are connected by hooking, so as to realize the connection between the avoidance rod 16 and the connecting rope 63.

[0095] In the case that the charging device 100 comprises the support 7, in some examples, the charging device 100 can further comprise a resting seat 13 and a hanger 14, and FIG. 14 exemplarily shows a structure of a resting seat 13 and a hanger 14. Among them, the resting seat 13 is a structure specially used for placing the charging gun 4 (the idle charging gun 4), the resting seat 13 has a socket 131 for the charging gun 4 to be inserted, the resting seat 13 is located below the support 7, and the hanger 14 is fixed at one end on the support 7 and at the other end on the resting seat 13. That is, the resting seat 13 can be hung below the support 7 through the hanger 14, so that the support 7 bears the function of installing the balancer 6 and the resting seat 13, and thus the support 7 can be fully utilized. In this example, the charging gun 4 not used by the user is inserted on the resting seat 13 instead of being inserted on the device cabinet 3.

[0096] In other examples, the resting seat 13 can also be fixed on the ground through the support 7 (not shown in the drawings).

[0097] In some examples, the charging device 100 comprises a plurality of device cabinets 3, and the plurality of device cabinets 3 can share one support 7. For example, FIG. 15 exemplarily shows another structure of a charging device 100. Referring to FIG. 15, the charging device 100 comprises two device cabinets 3, one of which is connected with one charging gun 4 through one cable 5, and the other of which is connected with two charging guns 4 through two cables 5, and the two device cabinets 3 are provided with one support 7, and the support 7 is provided with three balancers 6, and the three balancers 6 are all located above the three charging guns 4, and the connecting rope 63 of each balancer 6 is connected with the cable 5 of one charging gun 4. In this embodiment, the plurality of charging guns 4 in the idle state are inserted on one resting seat 13.

[0098] In the example shown in FIG. 15, each device cabinet 3 can be provided with a power conversion device 2. The power conversion device 2 can also be located outside all the device cabinets 3, that is, the power conversion device 2 can be arranged in the charging host 1.

[0099] The above merely provides a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which shall be encompassed in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A charging device, characterized by, The charging device comprises a device cabinet, a charging gun, a cable and a balancer. The cable connects the charging gun and the device cabinet. The balancer is located higher than the charging gun, and comprises a housing, an elastic member and a connecting rope.

2. The charging device according to claim 1, characterized in that, The charging device further comprises a guide wheel located higher than the charging gun, which is connected to the device cabinet and can rotate relative to the device cabinet.

3. The charging apparatus according to claim 1, characterized by, The charging device further comprises a bracket fixed to the top of the device cabinet and protruding to the side of the device cabinet towards the charging gun.

4. The charging apparatus according to claim 3, characterized by, The charging device further comprises a mounting plate fixed to the bracket and on which the housing of the balancer is fixed.

5. The charging apparatus according to claim 4, characterized by, The charging device further comprises two first rotating wheels located at the through hole and connected to the bracket.

6. The charging apparatus according to claim 5, characterized by, The charging device further comprises two second rotating wheels located at the through hole and connected to the bracket. The rotating axis of each first rotating wheel is perpendicular to the rotating axis of each second rotating wheel.

7. The charging apparatus according to claim 4, wherein The charging device further comprises a plurality of through holes for gas or liquid.

8. The charging apparatus according to claim 3, characterized by, The charging device further comprises a mounting seat and a hanger.

9. The charging apparatus according to claim 1, characterized by, The charging device further comprises a fixing clamp and an avoiding rod. The avoidance rod is arranged in a bent manner and comprises a first part and a second part intersecting in an extending direction, one end of the first part is movably connected with the fixed clamp, the first part extends towards the outside of the fixed clamp, the second part is fixed on the end of the first part away from the cable, and the end of the connecting rope outside the shell is fixed on the second part.

10. The charging device according to any one of claims 1-9, characterized by, The charging device further comprises a protective cover fixed on the device cabinet, and the protective cover is buckled outside the balancer.

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