Charging device

Abstract

The embodiment of the utility model provides charging equipment, and relates to the technical field of energy. The charging equipment comprises an equipment cabinet, a charging gun, a cable and a balancer, the cable is connected with the charging gun and the equipment cabinet; the position of the balancer is higher than the position of the charging gun, the balancer comprises a shell, an elastic piece and a connecting rope, the shell is fixed on the equipment cabinet, the elastic piece is located in the shell, the elastic piece is used for driving one part of the connecting rope to be wound in the shell, the other part of the connecting rope extends out of the shell, and the part, located outside the shell, of the connecting rope is connected with the charging gun or the cable.

Description

Technical Field

[0001] This application relates to the field of energy technologies, and particularly to a charging device. Background Art

[0002] A charging device (e.g., a charging pile), as a device for providing power replenishment, can be fixed on the ground or a wall and installed in a public building or a parking lot of a residential community. Among them, 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 both be set according to requirements.

[0003] In some usage 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 relatively heavy, and it is difficult for users to pick up the charging gun for charging. Summary of the Utility Model

[0004] This application provides a charging device. By using a balancer to bear part of the weight of the charging gun or the cable, it is beneficial for users to pick up the charging gun for charging.

[0005] To achieve the above object, this application adopts the following technical solutions:

[0006] This application provides a charging device, which includes an equipment cabinet, a charging gun, a cable, and a balancer; the cable connects the charging gun and the equipment cabinet; the position of the balancer is higher than the position of the charging gun. The balancer includes a housing, an elastic member, and a connecting rope. The housing is fixed on the equipment cabinet, the elastic member is located inside the housing, the elastic member is used to drive a part of the connecting rope to be wound inside the housing, and the other part of the connecting rope extends out of the housing. The part of the connecting rope located outside the housing is connected to the charging gun or the cable.

[0007] The equipment cabinet is installed on the ground, and current is transmitted to the charging gun through the cable, so that the charging gun can charge a device to be charged (e.g., an electric vehicle). Among them, the connecting rope of the balancer is connected to the charging gun or the cable. By applying a force to the connecting rope through the elastic member, the balancer lifts the charging gun or the cable. That is, the balancer can bear part of the weight of the charging gun. In this way, it is beneficial for users to pick up the charging gun for charging and also convenient for users to drag the cable. When the user pulls the charging gun away, the connecting rope will be pulled out of the housing of the balancer. When the user returns the charging gun, under the drive of the elastic member, the connecting rope will be wound inside the housing.

[0008] In an embodiment of this application, the charging device further includes a guide wheel. The position of the guide wheel is higher than the position of the charging gun. The guide wheel is connected to the equipment cabinet and can rotate relative to the equipment cabinet. The rotation axis of the guide wheel is parallel to the horizontal direction, and the part of the connecting rope located outside the housing is laid on the guide wheel.

[0009] The guide wheel is equivalent to a fixed pulley, which can change the direction of the connecting rope in the balancer, enabling the connecting rope to extend downward after emerging from the housing of the balancer. In addition, a charging device equipped with a fixed pulley (guide wheel) is also beneficial for the movement of the connecting rope, reducing the possibility of jamming or wear of the connecting rope during the process of being pulled out or wound into the housing.

[0010] In an embodiment of the present application, the charging device further includes a bracket, which is fixed to the top of the equipment cabinet and protrudes to the side of the equipment cabinet facing the charging gun. The housing of the balancer is fixed to the part of the bracket that protrudes to the side of the equipment cabinet.

[0011] The bracket can support the balancer. Moreover, since the bracket protrudes to the side of the equipment cabinet, the protruding part of the bracket is located above the position where the charging gun is located (the placement position when the charging gun is not in use). By means of the bracket, the balancer can be installed above the charging gun. In this way, the connecting rope is also located on the side of the equipment cabinet, which is beneficial for connecting the connecting rope to the charging gun or cable, and also reduces the possibility of interference of the equipment cabinet with the extension or winding of the cable.

[0012] In an embodiment of the present application, the charging device further includes a mounting plate, which is fixed to the bracket. The housing of the balancer is fixed to the mounting plate, and a through-hole is provided on the mounting plate. The part of the connecting rope outside the housing passes through the through-hole.

[0013] The mounting plate fixed to the bracket provides a position for the installation of the balancer. The connecting rope extends downward from the through-hole on the mounting plate, and the through-hole limits the connecting rope, reducing the possibility of the connecting rope shaking randomly. In addition, the mounting plate can also act as a decorative plate. By setting the mounting plate to cover and decorate the bracket, the charging device becomes more beautiful.

[0014] In an embodiment of the present application, the charging device further includes two first rotating wheels, which are located at the through-hole, connected to the bracket, and both can rotate relative to the bracket. The rotation axes of the two first rotating wheels are parallel to each other and both parallel to the horizontal direction, and there is a gap for the connecting rope to pass through between the two first rotating wheels.

[0015] Pulling the charging gun will cause the connecting rope to shake. During the shaking of the connecting rope, it will touch one of the first rotating wheels. The rotation of the first rotating wheel can assist the movement of the connecting rope. For example, when pulling the connecting rope downward, the connecting rope will shake and contact one of the first rotating wheels. With the assistance of this first rotating wheel, the connecting rope can be smoothly pulled out. Similarly, when the connecting rope is wound into the housing by the elastic member, if the connecting rope touches one of the first rotating wheels, with the assistance of this first rotating wheel, the connecting rope can also be smoothly retracted into the housing.

[0016] In one embodiment of the present application, the charging device also includes two second rotating wheels, which are located at the passage, connected to the bracket, and both can rotate relative to the bracket. 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 form a space for the connecting rope to pass through.

[0017] The connecting rope passes through the space enclosed by the two first rotating wheels and the two second rotating wheels. The two first rotating wheels and the two second rotating wheels jointly restrict the movement of the connecting rope, reducing the possibility of the connecting rope swinging freely. In addition, the two first rotating wheels and the two second rotating wheels are both arranged at the passage. During the movement of the connecting rope, if it contacts any of the two first rotating wheels or the two second rotating wheels, the contacted first rotating wheel or second rotating wheel can assist the movement of the connecting rope, thereby reducing the impact of the edge of the passage enclosed by the mounting plate on the movement of the connecting rope.

[0018] In one embodiment of the present application, a plurality of through holes for gas or liquid to pass through are provided on the mounting plate.

[0019] The through holes allow water to flow through the mounting plate, reducing the possibility of water accumulating on the mounting plate. In addition, the through holes also allow air to flow through, reducing the possibility of the mounting plate being blown off in harsh environments.

[0020] In one embodiment of the present application, the charging device also includes a mounting seat and a suspension rod. The mounting seat has a socket for inserting the charging gun. The mounting seat is located below the bracket. One end of the suspension rod is fixed to the bracket, and the other end of the suspension rod is fixed to the mounting seat.

[0021] In some cases, a placement seat can be set up specifically for placing the charging gun, wherein the placement seat can be hung under the bracket by a suspension rod, so that the bracket can take on the functions of installing the balancer and the placement seat, so that the bracket can be fully utilized.

[0022] In one embodiment of the present application, the charging device also includes a fixing clamp and an avoidance rod, the fixing clamp sleeve is arranged outside the cable and clamps the cable; the avoidance rod is bent and includes a first part and a second part whose extension directions intersect, one end of the first part is movably connected to the fixing clamp, the first part extends toward the outside of the fixing clamp, the second part is fixed to the end of the first part away from the cable, and the end of the connecting rope outside the shell is fixed to the second part.

[0023] A fixed jacket is provided and fixed on the cable. The connecting rope is connected to the fixed clip through the avoiding rod. The avoiding rod is bent. 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 fixed clip is clamped on the cable, during the process of the user grasping the charging gun, the user's arm will be at the position where the avoiding rod is located. The bending of the avoiding rod keeps a certain distance between the second part and the connecting rope and the user's arm, or avoids the user's arm to a certain extent, reducing the possibility of the connecting rope interfering with the human hand. In addition, the avoiding rod is movably connected to the fixed clip, which is convenient for the user to pick up the charging gun.

[0024] In an embodiment of the present application, the fixed clip includes a first clamping portion, a second clamping portion and a threaded member. The screw member connects the first clamping portion and the second clamping portion. The cable is clamped between the first clamping portion and the second clamping portion.

[0025] During the installation of the fixed clip, the first clamping portion and the second clamping portion can be installed on different sides of the cable, and then the first clamping portion and the second clamping portion are locked by the threaded member to realize the clamping of the cable.

[0026] In an embodiment of the present application, the fixed clip includes a first clamping portion, a second clamping portion and a threaded member. One end of the first clamping portion is hinged to one end of the second clamping portion, and the other end of the first clamping portion is fixed to the other end of the second clamping portion by a screw member. The cable is clamped between the first clamping portion and the second clamping portion.

[0027] During the installation of the fixed clip, the opening between the first clamping portion and the second clamping portion can be opened, the cable is installed between the first clamping portion and the second clamping portion, and then the first clamping portion and the second clamping portion are locked by the threaded member to realize the clamping of the cable.

[0028] In an optional implementation manner, the charging device further includes a protective cover. The protective cover is fixed on the equipment cabinet, and the protective cover is buckled outside the balancer.

[0029] The protective cover is buckled outside the balancer to protect the balancer, reducing the possibility of the balancer being damaged and extending the service life of the balancer.

[0030] In an optional implementation manner, the charging device further includes a power conversion device. The power conversion device is used to convert alternating current into direct current. The power conversion device is located inside the equipment cabinet, or the power conversion device is located outside the equipment cabinet. The cable is electrically connected to the power conversion device and the charging gun.

[0031] The power conversion device can convert the alternating current from the power grid into direct current and supply power to the charging gun with this, enabling the charging gun to supply power to the device to be charged. When the power conversion device is located inside the equipment cabinet, the charging device is an integrated charging device. When the power conversion device is located outside the equipment cabinet, the equipment cabinet is the cabinet of the charging terminal, and the charging device can also be additionally provided with a charging host, which is specifically used to place the power conversion device. Description of the Drawings

[0032] Figure 1 Schematic diagram of the overall structure of a charging device provided by an embodiment of the present application;

[0033] Figure 2 Schematic diagram of the overall structure of another charging device provided by an embodiment of the present application;

[0034] Figure 3 Schematic diagram of the external structure of a balancer provided by an embodiment of the present application;

[0035] Figure 4 Schematic diagram of the internal structure of a balancer provided by an embodiment of the present application;

[0036] Figure 5 Schematic diagram of the structure of a guide wheel provided by an embodiment of the present application;

[0037] Figure 6 Schematic diagram of the structure of a mounting plate provided by an embodiment of the present application;

[0038] Figure 7 Schematic diagram of the structure of a through port provided by an embodiment of the present application;

[0039] Figure 8 Schematic diagram of the structures of a first rotating wheel and a second rotating wheel provided by an embodiment of the present application;

[0040] Figure 9 Schematic diagram of the positional relationship among a guide wheel, a first rotating wheel, and a second rotating wheel provided by an embodiment of the present application;

[0041] Figure 10 Schematic diagram of the structure of a protective cover provided by an embodiment of the present application;

[0042] Figure 11 For Figure 10 The enlarged view at A in

[0043] Figure 12 Schematic diagram of the structure of a fixing clip provided by an embodiment of the present application;

[0044] Figure 13 Schematic diagram of the structure of another fixing clip provided by an embodiment of the present application;

[0045] Figure 14 Structural schematic diagrams of a placement seat and a hanging rod provided by an embodiment of the present application;

[0046] Figure 15 Overall structural schematic diagram of yet another charging device provided by an embodiment of the present application.

[0047] Reference numerals:

[0048] 100 - charging device; 1 - charging host; 2 - power conversion device; 3 - equipment cabinet; 4 - charging gun; 5 - cable; 51 - first section; 52 - second section; 6 - balancer; 61 - housing; 62 - elastic member; 63 - connecting rope; 64 - wire winding tower pulley; 7 - bracket; 71 - connecting rod; 72 - baffle; 73 - support rod; 74 - rotating frame; 8 - guide pulley; 81 - groove; 9 - mounting plate; 91 - through - opening; 92 - through - hole; 10 - first rotating wheel; 11 - second rotating wheel; 12 - mounting frame; 13 - placement seat; 131 - socket; 14 - hanging rod; 15 - fixing clip; 151 - first clamping portion; 152 - second clamping portion; 153 - threaded member; 154 - rotating shaft; 16 - avoiding rod; 161 - first part; 162 - second part; 1621 - hanging ring; 17 - protective cover; 18 - flexible pad. Detailed implementation manners

[0049] Next, the technical solutions in the embodiments of the present application will be described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

[0050] In the present application, unless otherwise clearly defined and limited, the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc. can include but is not limited to the orientation defined relative to the schematic placement of components in the accompanying drawings. Among them, these directional terms can be relative concepts. They are used for relative description and clarification, and they can change accordingly with the change of the orientation of the components placed in the accompanying drawings. It should not be understood as a limitation to the present application.

[0051] In the present application, terms such as "first", "second", etc. are only used for descriptive purposes, to distinguish one element from another, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. can explicitly or implicitly include one or more of such features.

[0052] In the present application, unless otherwise clearly defined and limited, the meaning of "a plurality" is two or more.

[0053] Furthermore, in this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0054] In the drawings of the embodiments of the present application, physical structures such as components and assemblies are represented by guide lines; hollow structures such as openings, holes, spaces, and cavities are represented by guide lines with arrows.

[0055] The embodiment of the present application provides a charging device 100, which may be a split-type charging pile. Figure 1 The structure of a charging device 100 (split charging pile) is shown as an example. Figure 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 inside the charging host 1. Each device cabinet 3 corresponds to one or more charging guns 4, and each device cabinet 3 and the one or more charging guns 4 on it constitute part of a charging terminal, that is, Figure 1 In the example shown, the charging device 100 includes a charging host 1 and multiple charging terminals, each of which includes a device cabinet 3 and a charging gun 4. In other examples, each charging terminal includes a device cabinet 3 and multiple charging guns 4.

[0056] In some other examples, in the same charging device 100 , a 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 .

[0057] In addition, the charging device 100 also includes a cable 5. Figure 1 Each cable 5 includes a first section 51 and a second section 52. The first section 51 connects the charging host 1 and the equipment cabinet 3, and the second section 52 connects the equipment cabinet 3 and the charging gun 4. The first section 51 is electrically connected to the power conversion device 2, and the second section 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.

[0058] 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 transmits 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).

[0059] The charging device 100 can also be an integrated charging pile.Figure 2 Exemplarily, the structure of another charging device 100 (integrated charging pile) is shown. The charging device 100 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 inside the device cabinet 3. Each cable 5 is connected between the device cabinet 3 and the charging gun 4, and the cable 5 is also electrically connected to 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.

[0060] In addition, the charging device 100 further includes a balancer 6. Figure 3 Exemplarily, the external structure of a balancer 6 is shown. Referring to Figure 2 and Figure 3 , the balancer 6 is located above the charging gun 4. Herein, in this application, the balancer 6 being located above the charging gun 4 means that the position of the balancer 6 is higher than the position of the charging gun 4, rather than directly above the charging gun 4. And, the position limitations in this application with reference to the charging gun 4 are all based on the charging gun 4 being in an unused state, that is, based on the state where the charging gun 4 is plugged into the gun insertion position, and at this time, the charging gun 4 has not been removed to charge the device to be charged.

[0061] Figure 4 Exemplarily, the internal structure of a balancer 6 is shown. Referring to Figure 4 , the balancer 6 includes a housing 61, an elastic member 62, and a connecting rope 63. The elastic member 62 is located inside the housing 61, and the elastic member 62 is used to drive a part of the connecting rope 63 to be wound inside the housing 61. For example, the balancer 6 further includes a winding tower pulley 64. The winding tower pulley 64 is rotatably connected inside the housing 61 (the winding tower pulley 64 can rotate relative to the housing 61). The elastic member 62 is a volute spring, and the winding tower pulley 64 is connected to the housing 61 through the elastic member 62. For example, when the force applied to the winding tower pulley 64 is greater than the elastic force of the elastic member 62, the winding tower pulley 64 can rotate clockwise under the force; when the force applied to the winding tower pulley 64 disappears, or when the force applied to the winding tower pulley 64 is less than the elastic force of the elastic member 62, the elastic member 62 drives the winding tower pulley 64 to rotate counterclockwise. A part of the connecting rope 63 is wound around the winding tower pulley 64. When the pulling force on the connecting rope 63 is large enough, the connecting rope 63 can drive the winding tower pulley 64 to rotate; when there is no external force pulling the connecting rope 63, or when the pulling force on the connecting rope 63 is small, the elastic member 62 drives a part of the connecting rope 63 to be wound inside the housing 61 through the winding tower pulley 64.

[0062] Wherein, 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 torsion spring. This application does not specifically limit the detailed structure of the balancer 6.

[0063] Reference Figure 2 and Figure 3 As shown in Figure 3 , the housing 61 of the balancer 6 is fixed to the equipment cabinet 3. Part of the connecting rope 63 is located inside the housing 61, and the other part extends outside the housing 61. The part of the connecting rope 63 located outside the housing 61 is connected to the charging gun 4 or the cable 5. Among them, Figure 2 Figure Figure 2 shows the case where the connecting rope 63 is connected to the cable 5. In some other examples, the connecting rope 63 is connected to the charging gun 4. The connecting rope 63 of the balancer 6 is connected to the charging gun 4 or the cable 5. Through the acting force applied to the connecting rope 63 by the elastic member 62, the balancer 6 lifts 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. In this way, it is beneficial for the user to pick up the charging gun 4 for charging and also convenient for the user to drag the cable 5.

[0064] When the user pulls the charging gun 4 away, the connecting rope 63 will be pulled out from the housing 61 of the balancer 6. When the user returns the charging gun 4, under the drive of the elastic member 62, the connecting rope 63 will be wound up inside the housing 61.

[0065] The balancer 6 can be fixed to the equipment cabinet 3 in any suitable way. For example, as shown in Reference Figure 2 and Figure 3 , the charging device 100 further includes a bracket 7. The balancer 6 is fixed to the top of the equipment cabinet 3 through the bracket 7. The bracket 7 is fixed to the top of the equipment cabinet 3, and the bracket 7 protrudes to the side of the equipment cabinet 3 facing the charging gun 4. That is, when the charging gun 4 is not in use, 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 plugged into the equipment cabinet 3, or the charging gun 4 can be plugged into a special gun holder. 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 to the part of the bracket 7 that protrudes to the side of the equipment cabinet 3. In this way, the balancer 6 is located above the charging gun 4 (the charging gun 4 in the non-used state).

[0066] The bracket 7 can be any suitable frame structure. For example, as shown in Reference Figure 3 , the bracket 7 includes a plurality of connecting rods 71. The plurality of connecting rods 71 are spliced and fixed to each other (for example, fixed by bolts) to form the main body part of the bracket 7. In addition, the bracket 7 further includes a square-shaped shielding plate 72. The shielding plate 72 surrounds the main body part formed by the plurality of connecting rods 71, playing a role of decoration and protection. In some other examples, the bracket 7 may not be provided with the shielding plate 72 and is only composed of a plurality of connecting rods 71 spliced and fixed to each other. In some other examples, the bracket 7 may also be a cubic frame formed by overlapping a plurality of metal rods. The present application does not make specific limitations on this.

[0067] The bracket 7 can be fixed to the equipment cabinet 3 in any suitable manner. In Figure 3 the illustrated example, the bracket 7 further includes a support rod 73 which is bent. For example, the support rod 73 is bent into a "C" shape. A bolt hole (not shown in the drawings) for a bolt to pass through is provided on the support rod 73. The above bolt hole can be a round hole or an oval hole (that is, a long strip-shaped hole). The bolt passes through the bolt hole and locks the bracket 7 to the equipment cabinet 3. Wherein, when the above bolt hole is an oval hole, the installation of the bracket 7 can have an adjustment distance to absorb construction errors. In other examples, the bracket 7 can also be fixed to the equipment cabinet 3 by bonding or welding, and the present application does not make specific limitations in this regard.

[0068] The bracket 7 can support the balancer 6. And since the bracket 7 protrudes laterally from the equipment cabinet 3, the balancer 6 can be installed above the charging gun 4 through the bracket 7. In this way, the connecting rope 63 is also located on the side of the equipment cabinet 3, which is beneficial to the connection between the connecting rope 63 and the charging gun 4 or the cable 5, and reduces the possibility of interference of the equipment cabinet 3 with the extension or retraction of the cable 5.

[0069] In some other examples, the balancer 6 can be directly fixed to the equipment cabinet 3 by bolts or rivets, and no support structure such as the bracket 7 is provided.

[0070] In some examples, the charging device 100 further includes a guide wheel 8. Figure 5 An exemplary structure of a guide wheel 8 is shown. Among them, 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 used as an auxiliary reference Figure 2 ). Among them, 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 that 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, when the charging device 100 includes a bracket 7, a rotating frame 74 is fixed (for example, by bolts) on the bracket 7, and the guide wheel 8 is rotatably connected (for example, by a rotating shaft or a bearing) to the rotating frame 74. The rotation axis of the guide wheel 8 is parallel to the horizontal direction. It should be noted that the "parallel" here allows an error of ±20°. The part of the connecting rope 63 located outside the housing 61 is placed on the guide wheel 8.

[0071] Among them, the guide wheel 8 is equivalent to a fixed pulley. The guide wheel 8 can change the direction of the connecting rope 63 outside the housing 61 of the balancer 6, so that after the connecting rope 63 extends out of the housing 61 of the balancer 6, it can extend downward. In addition, being equipped with the guide wheel 8 is also beneficial to the movement of the connecting rope 63, and reduces the possibility of the connecting rope 63 getting stuck or worn during the process of being pulled out or retracted into the housing 61.

[0072] In addition, in order to limit the connecting rope 63, referring to Figure 5 , the middle area of the outer peripheral surface of the guide wheel 8 (the outer peripheral surface surrounding the rotation axis of the guide wheel 8) can be recessed inward, 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, a groove 81 for accommodating the connecting rope 63 is formed on the outer peripheral surface of the guide wheel 8, and the connecting rope 63 is placed in the groove 81 where the guide wheel 8 is recessed inward, reducing the possibility of the connecting rope 63 detaching from the guide wheel 8.

[0073] In some other examples, the guide wheel 8 can be rotatably connected to the equipment cabinet 3 instead of being fixed to the bracket 7. For example, a rotating frame 74 (not shown in the drawings) is provided on the equipment cabinet 3, and the guide wheel 8 is rotatably connected to the rotating frame 74 of the equipment cabinet 3.

[0074] In the case where the charging device 100 includes the bracket 7, in order to facilitate the installation of structures such as the balancer 6, the charging device 100 further includes a mounting plate 9. Figure 6 An exemplary structure of a mounting plate 9 is shown, and the mounting plate 9 is fixed to the bracket 7. In Figure 6 the shown example, only the part of the bracket 7 protruding to the side of the equipment cabinet 3 is fixed with the mounting plate 9, and the part of the bracket 7 located directly above the equipment cabinet 3 is not provided with the mounting plate 9. In some other examples, the bottom of the entire bracket 7 is covered by the mounting plate 9.

[0075] Referring to Figure 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. 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 structures such as the balancer 6. In addition, the mounting plate 9 can also be used as a decorative plate, and by providing the mounting plate 9, it plays a role in covering and decorating the bracket 7, making the overall charging device 100 more beautiful.

[0076] A through hole 91 is also provided on the mounting plate 9. Figure 7 An exemplary structure of a through hole 91 is shown, referring to Figure 7 , the part of the connecting rope 63 located outside the housing 61 passes through the through hole 91. The connecting rope 63 extends downward from the through hole 91 on the mounting plate 9, and the through hole 91 limits the connecting rope 63, reducing the possibility of the connecting rope 63 swaying randomly.

[0077] In addition, in some examples, referring to Figure 7, a plurality of through holes 92 are provided on the mounting plate 9. The through holes 92 can allow water to drip downward through the mounting plate 9. By providing the through holes 92 on the mounting plate 9, the possibility of a large amount of water accumulation on the mounting plate 9 is reduced. In addition, the through holes 92 can also allow air flow to pass through, reducing the possibility of the mounting plate 9 being blown off in a harsh environment. In the present application, the plurality of through holes 92 can be arranged on the mounting plate 9 in any suitable manner, and the present application does not make specific limitations on this.

[0078] In some examples, the charging device 100 further includes two first rotating wheels 10 and two second rotating wheels 11. Figure 8 The structures of the two first rotating wheels 10 and the two second rotating wheels 11 are exemplarily shown. The two first rotating wheels 10 and the two second rotating wheels 11 are both rotatably connected to the bracket 7 (both the two first rotating wheels 10 and the two second rotating wheels 11 can rotate relative to the bracket 7). For example, the charging device 100 further includes a mounting frame 12. The mounting frame 12 is mounted in the through port 91. The two first rotating wheels 10 and the two second rotating wheels 11 are rotatably connected to the mounting frame 12 through a shaft structure or bearings. Among them, the rotation axes of the two first rotating wheels 10 are parallel to each other and both parallel to the horizontal direction. The rotation axes of the two second rotating wheels 11 are parallel to each other and both parallel to the horizontal direction. The rotation axis of each first rotating wheel 10 is perpendicular to the rotation axis of each second rotating wheel 11. It should be noted that the "parallel" and "perpendicular" here are both allowed to have an error of ±20°.

[0079] The two first rotating wheels 10 and the two second rotating wheels 11 are both located at the through port 91. For example, the two first rotating wheels 10 and the two second rotating wheels 11 both extend into or pass through the through port 91. The two first rotating wheels 10 and the two second rotating wheels 11 enclose a space (indicated by the arrow S1) for the connecting rope 63 to pass through. In some examples, the space (indicated by the 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 restrict the movement of the connecting rope 63, reducing the possibility of the connecting rope 63 swaying randomly.

[0080] In addition, the two first rotating wheels 10 and the two second rotating wheels 11 are both provided at the through port 91. During the movement of the connecting rope 63, it may come into contact with any one of the two first rotating wheels 10 and the two second rotating wheels 11. Through the rotation of the first rotating wheel 10 or the second rotating wheel 11, the movement of the connecting rope 63 can be assisted, reducing the influence of the edge of the mounting plate 9 enclosing the through port 91 on the movement of the connecting rope 63.

[0081] For example, when using the charging gun 4 to charge the device to be charged, it is necessary to pull the connecting rope 63. During the process of pulling the connecting rope 63 downward, the connecting rope 63 will shake and contact one of the first rotating wheels 10 or the second rotating wheels 11. 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, during the process of the connecting rope 63 being wound into the housing 61 by the elastic member 62, if the connecting rope 63 contacts one of the first rotating wheels 10 or the second rotating wheels 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.

[0082] In some other examples, the two first rotating wheels 10 and the two second rotating wheels 11 can both be located outside the through-port 91. That is, although the two first rotating wheels 10 and the two second rotating wheels 11 are located at the through-port 91, however, the two first rotating wheels 10 and the two second rotating wheels 11 do not extend into or pass through the through-port 91. In this example, the two first rotating wheels 10 and the two second rotating wheels 11 are both located above or below the through-port 91.

[0083] In some other examples, the charging device 100 further includes two first rotating wheels 10 and no longer sets two second rotating wheels 11. The two first rotating wheels 10 are rotatably connected to the bracket 7 (the two first rotating wheels 10 can rotate relative to the bracket 7). The rotation axes of the two first rotating wheels 10 are parallel to each other and both parallel to the horizontal direction. The two first rotating wheels 10 are located at the through-port 91, and there is a gap for the connecting rope 63 to pass through between the two first rotating wheels 10. During the shaking process of the connecting rope 63, it will touch one of the first rotating wheels 10, and the rotation of the first rotating wheel 10 can assist the movement of the connecting rope 63.

[0084] In some other examples, the charging device 100 further includes two second rotating wheels 11 and no longer sets two first rotating wheels 10. During the shaking process of the connecting rope 63, it will touch one of the second rotating wheels 11, and the rotation of the second rotating wheel 11 can assist the movement of the connecting rope 63.

[0085] Figure 9 Exemplarily, the case where the charging device 100 includes the guide wheel 8, two first rotating wheels 10 and two second rotating wheels 11 is shown, aiming to show the positional relationship among the guide wheel 8, the first rotating wheel 10 and the second rotating wheel 11. Refer to Figure 9 , the guide wheel 8 is located above the through-port 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 placed 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 (and also passes through the through-port 91).

[0086] To protect the balancer 6, the charging device 100 further includes a protective cover 17. Figure 10 An exemplary structure of a protective cover 17 is shown, referring to Figure 9 and Figure 10 , the protective cover 17 is fixed on the equipment cabinet 3, and the protective cover 17 is buckled (or covered) outside the balancer 6, thereby protecting the balancer 6 and reducing the possibility of damage to the balancer 6, and prolonging the service life of the balancer 6. When the charging device 100 further includes a 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.

[0087] Figure 11 For Figure 10 the enlarged view at position A in Figure 11 , the charging device 100 further includes a fixing clip 15 and an avoidance rod 16. The fixing clip 15 is sleeved outside the cable 5 and clamps the cable 5. The avoidance rod 16 is bent and includes a first portion 161 and a second portion 162 whose extending directions intersect (for example, are perpendicular). Wherein, one end of the first portion 161 is movably connected (rotationally connected or gimbal connected) to the fixing clip 15, and the first portion 161 extends towards the outside of the fixing clip 15. For example, the first portion 161 extends radially along the cable 5 towards the outside of the fixing clip 15. The second portion 162 is fixed to the end of the first portion 161 away from the cable ⑤. For example, the avoidance rod 16 is in an "L" shape, and the end of the connecting rope 63 outside the housing 61 is fixed to the second portion 162.

[0088] Wherein, in the example where the first portion 161 is rotationally connected to the fixing clip 15 (the first portion 161 can rotate relative to the fixing clip 15), the first portion 161 can be rotationally connected to the fixing clip 15 by means of a shaft fit, and the first portion 161 can also be rotationally connected to the fixing clip 15 by means of a bearing. In the above examples, the avoidance rod 16 can rotate relative to the fixing clip 15 along a rotation axis, and this rotation axis can be parallel to the radial direction of the cable 5. In other examples, the first portion 161 can also be gimbal connected to the fixing clip 15 by means of a universal joint (for example, a ball joint). In this example, the avoidance rod 16 can be inclined in any direction relative to the fixing clip 15, and the avoidance rod 16 can rotate relative to the fixing clip 15 along multiple different rotation axes. By movably connecting the avoidance rod 16 with the fixing clip 15, it is convenient for the user to pick up the charging gun 4.

[0089] In addition, the avoidance rod 16 is bent, and the connecting rope 63 is connected to the second part 162 of the avoidance rod 16. In this way, the connecting rope 63 is located on the side of the charging gun 4. Since the fixing clip 15 is clamped on the cable 5, during the process of the user grasping the charging gun 4, the user's arm will be at the position where the avoidance rod 16 is located. The bending of the avoidance rod 16 keeps the second part 162 and the connecting rope 63 at a certain distance from the user's arm, avoiding the user's arm to a certain extent, and reducing the possibility of the connecting rope 63 interfering with the human hand during the process of the user grasping and using the charging gun 4.

[0090] The fixing clip 15 can be of any suitable structure. For example, Figure 12 An exemplary structure of a fixing clip 15 is shown. Referring to Figure 12 , the fixing clip 15 includes a first clamping part 151, a second clamping part 152 and a threaded part 153 (such as a bolt). The first clamping part 151 and the second clamping part 152 can both be semi-circular structures. 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. Among them, 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).

[0091] For another example, Figure 13 An exemplary structure of another fixing clip 15 is shown. The fixing clip 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 hinged to one end of the second clamping part 152 (for example, hinged by a rotating shaft 154). During the installation of the fixing clip 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 clip 15 respectively), so that the cable 5 is clamped between the first clamping part 151 and the second clamping part 152.

[0092] Returning to refer to Figure 11 , in some examples, the charging device 100 further includes a flexible pad 18, and the flexible pad 18 is fixed between the fixing clip 15 and the cable 5. For example, referring to Figure 12 , flexible pads 18 are provided on the inner sides of both the first clamping part 151 and the second clamping part 152. After the first clamping part 151 and the second clamping part 152 clamp the cable 5, the flexible pads 18 are located between the fixing clip 15 and the cable 5, thereby reducing the possibility of the fixing clip 15 damaging the cable 5.

[0093] In addition, in some examples, with reference to Figure 12 , a lifting ring 1621 may be provided on the second part 162 of the avoidance rod 16, and a hook (not shown in the drawings) may be provided at the end of the connecting rope 63. The connection between the avoidance rod 16 and the connecting rope 63 is achieved by hooking the hook to the lifting ring 1621.

[0094] In the case where the charging device 100 includes the bracket 7, in some examples, the charging device 100 may further include a mounting base 13 and a suspension rod 14. Figure 14 Exemplarily shown is the structure of a mounting base 13 and a suspension rod 14. Among them, the mounting base 13 is a structure specifically for placing the charging gun 4 (idle charging gun 4). The mounting base 13 has a socket 131 for the charging gun 4 to be inserted. The mounting base 13 is located below the bracket 7. One end of the suspension rod 14 is fixed to the bracket 7, and the other end of the suspension rod 14 is fixed to the mounting base 13. That is, the mounting base 13 can be suspended below the bracket 7 by the suspension rod 14, enabling the bracket 7 to bear the function of installing the balancer 6 and the mounting base 13, so that the bracket 7 can be fully utilized. In this example, the charging gun 4 not used by the user is inserted into the mounting base 13 instead of the equipment cabinet 3.

[0095] In some other examples, the mounting base 13 can also be fixed to the ground by the bracket 7 (not shown in the drawings).

[0096] In some examples, the charging device 100 includes a plurality of equipment cabinets 3, and the plurality of equipment cabinets 3 can share a bracket 7. For example, Figure 15 Exemplarily shown is the structure of yet another charging device 100. With reference to Figure 15 , the charging device 100 includes two equipment cabinets 3. One charging gun 4 is connected to one of the equipment cabinets 3 by a cable 5, and two charging guns 4 are connected to the other equipment cabinet 3 by two cables 5. A bracket 7 is erected on the two equipment cabinets 3. Three balancers 6 are provided on the bracket 7. The three balancers 6 are all located above the three charging guns 4. The connecting rope 63 of each balancer 6 is connected to the cable 5 of one charging gun 4. In this embodiment, when the plurality of charging guns 4 are in an unused state, they are inserted into a mounting base 13.

[0097] In Figure 15 the example shown, a power conversion device 2 may be provided in each equipment cabinet 3. The power conversion device 2 may also be located outside all the equipment cabinets 3. That is, the power conversion device 2 may be provided in the charging host 1.

[0098] As described above, it is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claimed rights.

Claims

1. A charging device, characterized in that, It includes an equipment cabinet, a charging gun, a cable, and a balancer; The cable connects the charging gun and the equipment cabinet; The position of the balancer is higher than that of the charging gun. The balancer includes a housing, an elastic member, and a connecting rope. The housing is fixed on the equipment cabinet. The elastic member is located inside the housing and is used to drive a part of the connecting rope to be wound inside the housing. The other part of the connecting rope extends outside the housing, and the part of the connecting rope outside the housing is connected to the charging gun or the cable.

2. The charging device according to claim 1, wherein The charging device further includes a guide wheel. The position of the guide wheel is higher than that of the charging gun. The guide wheel is connected to the equipment cabinet and can rotate relative to the equipment cabinet. The rotation axis of the guide wheel is parallel to the horizontal direction, and the part of the connecting rope outside the housing is laid on the guide wheel.

3. The charging device according to claim 1, wherein, The charging device further includes a bracket. The bracket is fixed on the top of the equipment cabinet and protrudes to the side of the equipment cabinet facing the charging gun. The housing of the balancer is fixed on the part of the bracket protruding to the side of the equipment cabinet.

4. The charging device according to claim 3, characterized in that, The charging device further includes a mounting plate. The mounting plate is fixed on the bracket, and the housing of the balancer is fixed on the mounting plate. A through-hole is provided on the mounting plate, and the part of the connecting rope outside the housing passes through the through-hole.

5. The charging device according to claim 4, wherein, The charging device further includes two first rotating wheels. The two first rotating wheels are located at the through-hole. The two first rotating wheels are connected to the bracket and can both rotate relative to the bracket. The rotation axes of the two first rotating wheels are parallel to each other and are both parallel to the horizontal direction. There is a gap for the connecting rope to pass through between the two first rotating wheels.

6. The charging device according to claim 5, wherein The charging device further includes two second rotating wheels. The two second rotating wheels are located at the through-hole. The two second rotating wheels are connected to the bracket and can both rotate relative to the bracket. The rotation axes of the two second rotating wheels are parallel to each other and are both 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.

7. The charging device according to claim 4, wherein A plurality of through-holes for gas or liquid to pass through are provided on the mounting plate.

8. The charging device according to claim 3, wherein The charging device further includes a placement seat and a hanging rod. The placement seat has a socket for the charging gun to be inserted. The placement seat is located below the bracket. One end of the hanging rod is fixed on the bracket, and the other end of the hanging rod is fixed on the placement seat.

9. The charging device according to claim 1, wherein, The charging device further includes a fixing clip and an avoidance rod. The fixing clip is sleeved outside the cable and clamps the cable; The avoidance rod is bent and includes a first part and a second part whose extending directions intersect. One end of the first part is movably connected to the fixed clip. The first part extends towards the outside of the fixed clip. The second part is fixed to the end of the first part away from the cable. The end of the connecting rope located outside the housing is fixed to the second part.

10. The charging device according to any one of claims 1-9, characterized in that, The charging device further includes a protective cover, which is fixed to the equipment cabinet and buckles outside the balancer.

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