Charger

Abstract

This charger comprises: a body installed in a frame and having a space formed therein; a weight assembly accommodated to be liftable and lowerable in the space; and a wire, connected to a charging cable, for lifting the weight assembly. The weight assembly may include: a tray having an inner space formed therein; and at least one weight accommodated in the inner space, and the weight of the weight assembly may vary according to the number of weights accommodated in the inner space.

Description

charger

[0001] The present invention relates to a charger.

[0002] A charger is a device used to charge a battery.

[0003] An example of a charger may be an electric vehicle charger that charges a vehicle such as an electric vehicle, and electrical energy is supplied to the battery of the electric vehicle by connecting a charging connector provided at the end of a charging cable to a connection inlet installed in the electric vehicle.

[0004] The charger includes a power module to which a charging cable is connected and a charger body that forms a space in which the power module is accommodated.

[0005] The user can connect the connector (charging gun or plug) provided on the charging cable to the vehicle after removing it from the charger body.

[0006] U.S. Patent Publication No. US 11,260,767 B2 (patent dated May 01, 2022) discloses a cable recovery system including a wire connected to a charging cable, the cable recovery system including an enclosure having an opening formed therein, a movable pulley movably received in the enclosure, a movable counterweight connected to the movable pulley, a ring fixed to the interior of the enclosure, a pulley disposed around the opening of the enclosure, and a wire having one end connected to the ring and the other end connected to the cable, the wire elevating the movable pulley.

[0007] The present embodiment provides a charger in which the total weight of the weight can be easily changed according to the weight of the charging cable.

[0008] A charger according to the present embodiment includes a body installed in a frame and having a space formed therein; a weight assembly movably accommodated therein; and a wire connected to a charging cable and elevating the weight assembly, wherein the weight assembly may include a tray having an inner space formed therein; and at least one weight accommodated in the inner space.

[0009] The charger may further include first and second fixed pulleys installed on the body.

[0010] The weight assembly may further include a lifting pulley disposed on the tray; and a wire connector disposed on the tray and connected to the ear.

[0011] The wire can be sequentially wound around the first fixed pulley, the lifting pulley, and the second fixed pulley.

[0012] The weight assembly may further include a flow control roller disposed on the tray and in contact with the inner surface of the tray.

[0013] The roller for controlling the flow may further include a first roller that rotates around a central axis in the forward-rear direction; and a second roller that rotates around a central axis in the left-right direction.

[0014] The roller for controlling the flow may include an upper roller rotatably arranged on the upper surface of the tray; and a lower roller rotatably arranged on the lower surface of the tray.

[0015] The weight assembly may further include a front cover coupled to the tray to prevent the weight from dislodging.

[0016] The charger may further include a left cover coupled to the front of the body; and a right cover coupled to the front of the body and spaced apart from the left cover in the left-right direction.

[0017] The body may be formed with a wire penetration hole through which a wire may pass, and the wire may extend to the outside of the body and be connected to a charging cable.

[0018] The charging cable may include a cable body extending outside the charger body.

[0019] One end of the wire can be connected to the weight assembly, and the other end of the wire can be connected to the cable body.

[0020] The charger may further include a stopper positioned on the upper surface of the lower portion of the body.

[0021] The weight assembly may further include a weight balancer disposed on the bottom of the tray.

[0022] The stopper may have a protrusion protruding therefrom, and the bottom of the weight balancer may have a groove formed into which the protrusion is inserted.

[0023] The charger may further include a top stopper positioned so as to protrude toward the inner space of the tray.

[0024] According to the present embodiment, the wire is connected to the tray, and at least one weight is accommodated in the tray, so that the number of weights can be varied depending on the weight of the charging cable.

[0025] In addition, the length of the wire accommodated inside the charger body can be maximized, thereby maximizing the operating length of the wire extending outside the charger body.

[0026] Additionally, even though the charger body is small, the wires can be accommodated as much as possible inside the body.

[0027] In addition, the roller for controlling the flow placed on the tray comes into contact with the inner surface of the tray, so that the frictional resistance between the tray and the body can be minimized, and the tray can be raised and lowered smoothly.

[0028] Additionally, the front cover installed on the tray can prevent the weight from being accidentally removed.

[0029] In addition, the left cover placed on the body; the right cover can prevent the weight assembly from being accidentally dislodged and help the weight assembly to be raised and lowered stably.

[0030] Additionally, the stopper can minimize the impact caused by the dropping of the weight assembly.

[0031] In addition, the upper limit height of the weight assembly can be determined by the top stopper, and damage to the first and second fixed pulleys by the weight assembly can be prevented.

[0032] Figure 1 is a front view of a charger according to the present embodiment;

[0033] Figure 2 is a front view of the wire device according to the present embodiment when installed in the frame;

[0034] Figure 3 is an exploded perspective view of a wire device according to the present embodiment;

[0035] Figure 4 is a front view of a weight assembly according to the present embodiment;

[0036] Figure 5 is a front view showing the inside of a wire device according to the present embodiment;

[0037] Figure 6 is an enlarged perspective view of the upper surface of the weight assembly according to the present embodiment;

[0038] Fig. 7 is an enlarged perspective view of the lower surface of the weight assembly according to the present embodiment;

[0039] FIG. 8 is a perspective view showing the lower plate of the body when the weight assembly according to the present embodiment is raised.

[0040] Hereinafter, specific embodiments of the present invention will be described in detail with drawings.

[0041] Fig. 1 is a front view of a charger according to the present embodiment, and Fig. 2 is a front view when a wire device according to the present embodiment is installed on a frame.

[0042] The charger may include a charger body (1) and a charging cable (2).

[0043] The charger body (1) may include a case (1a) forming the exterior of the charger and a frame (1b) supporting the case (1a).

[0044] The frame (1b) may be positioned inside the case (1a) and may be protected by the case (1a). The frame (1b) may include an aluminum frame formed of aluminum material. A power supply unit to which one end of a charging cable (2) is connected may be accommodated inside the charger body (1). The power supply unit may include a power module or a power supply, etc.

[0045] The charging cable (2) can pass through the charger body (1), especially the case (1a).

[0046] The charging cable (2) may include a connection body located inside the charger body (1), a cable body (21) extending outside the charger body (1), and a connector (22) installed at the other end of the cable body (21).

[0047] The connecting body can be connected to a power supply unit housed inside the charger body (1).

[0048] The cable body (21) may include a charging cable and an outer sheath surrounding the outer circumference of the charging cable.

[0049] The cable body (21) can pass through a through hole formed in the charger body (1).

[0050] The connector (22) can be connected to or disconnected from the inlet of a vehicle such as an electric vehicle, and can charge the vehicle such as an electric vehicle.

[0051] A connector holder on which a connector (22) is mounted can be formed in the charger body (1).

[0052] The charging cable (2) can be extended so that the cable body (21) is close to the vehicle after the connector (22) is separated from the connector holder, and the connector (22) can be connected to the inlet of the vehicle.

[0053] The charger may include a wire device (3) that can pull one side of the charging cable (2), particularly the cable body (21), to the charger body (1).

[0054] One side (23) of the cable body (21) can be defined as a portion of the cable body (21) to which the wire (4) is connected. One side (23) of the cable body (21) can be closer to the connector (22) among the connecting body and connector (22) of the charging cable.

[0055] The wire device (3) may include a wire (4) connected to one side (23) of the cable body (21).

[0056] An example of a wire (4) is connected to a cable cover (not shown) provided on one side (23) of a cable body (21) so that one side (23) of the cable cover (21) can be pulled to the charger body (1).

[0057] Another example of a wire (4) may include a ring connected to one side of a cable body (21), which can pull one side (23) of a cable cover (21) to the charger body (1).

[0058] The wire device (3) may include a retractor, spring balancer or weight capable of pulling the wire (4) into the interior of the electric body (1).

[0059] If the wire device (3) includes a retractor or a spring balancer, the load can gradually increase as the operating length of the wire (4) increases. However, if the wire device (3) includes a weight, the load can remain constant even if the operating length of the wire (4) increases.

[0060] Here, the operating length of the wire (4) can be defined as the length of the wire (4) extended outside the charger body (1), and the load can be a force that pulls the wire (4) outside the charger body (1).

[0061] It is preferable that the wire device (3) include a weight (62, see FIGS. 3 to 5) so that the user can pull the connector (22) with a constant force (load), and the following description will be given of including the weight (62).

[0062] The wire device (3) can correspond 1:1 with the charging cable (2). If a plurality of charging cables (2) are provided in the charger, a plurality of wire devices (3) can be provided inside the cable body (1).

[0063] If the charger includes a left charging cable and a right charging cable, the wire device may include a left wire device and a right wire device. The left wire device and the right wire device may be arranged spaced apart from each other or in contact with each other.

[0064] FIG. 3 is an exploded perspective view of a wire device according to the present embodiment, FIG. 4 is a front view of a weight assembly according to the present embodiment, and FIG. 5 is a front view showing the inside of a wire device according to the present embodiment.

[0065] The wire device (4) includes a body (5) installed in a frame (1b) and having a space (S1) formed therein; and a weight assembly (6) that is movably accommodated in the space (S1).

[0066] The wire (4) can be connected to each of the charging cable (2) and the weight assembly (6).

[0067] One end of the wire (4) can be connected to a weight assembly (6), and the other end of the wire (4) can be provided with a ring or the like connected to a charging cable (2).

[0068] The other end of the wire (4) can be connected to the cable body (21) of the charging cable (2).

[0069] The wire (4) can extend outside the body (5).

[0070] The wire (4) may include an inner wire (4A) accommodated in a space (S1) together with a weight assembly (6), and an outer wire (4B) extending from the inner wire (4A) and positioned outside the body (5).

[0071] The wire (4) can be pulled outward from the charger body (1) when one side (23) of the charging cable (2) moves away from the charger body (1), and at this time, the weight assembly (6) can be raised.

[0072] The wire (4) can be pulled by the weight assembly (6) and inserted into the interior of the charger body (1), and one side (23) of the charging cable (2) can be pulled close to the charger body (1).

[0073] The body (5) can form the appearance of the wire device (4) and protect the weight assembly (6).

[0074] The body (5) may have a box shape with an open front.

[0075] The body (5) may include a left plate (51), a right plate (52), a rear plate (53), an upper plate (54), and a lower plate (55), as shown in FIG. 3.

[0076] The body (5) can be arranged lengthwise in the vertical direction (Z) on the frame (1b).

[0077] The body (5) can be fastened to the frame (1b) using fastening members such as brackets and screws.

[0078] A wire penetration hole (56) through which a wire (4) passes may be formed in the body (5). The wire penetration hole (56) may be formed in at least one of the left plate (51) and the right plate (52) of the body (5).

[0079] The body (5) can guide the elevation of the weight assembly (6). The inner surface of the body (5) can be a guide surface that guides the elevation of the weight assembly (6).

[0080] The wire device (4) may include first and second fixed pulleys (7) (8) installed on the body (2).

[0081] The first and second fixed pulleys (7) and (8) guide the wire (4), and can guide the movement of the wire (4) while maintaining a constant height.

[0082] The wire (4) can slide along the first and second fixed pulleys (7)(8).

[0083] The first and second fixed pulleys (7)(8) can be arranged to be accommodated in the space (S1).

[0084] The first and second fixed pulleys (7)(8) can be arranged on the upper plate (54). The first and second fixed pulleys (7)(8) can be arranged horizontally spaced apart from each other on the upper plate (54).

[0085] The first and second fixed pulleys (7)(8) can be arranged spaced apart from each other in the left and right direction (Y) on the lower surface of the upper plate (54).

[0086] Each of the first and second fixed pulleys (7)(8) may include a bracket that is fastened to the upper plate (54) with a fastening member such as a screw, and a roller that is rotatably arranged on the bracket. The roller may be rotatably connected to the bracket about a horizontal axis.

[0087] The weight assembly (6) may include a tray (61) in which an inner space (S2) is formed; and at least one weight (62) accommodated in the inner space (S2).

[0088] The tray (61) may be in the shape of a box with an open front.

[0089] As shown in FIG. 3, the tray (61) may include a left plate (61a), a right plate (61b), a rear plate (61c), an upper plate (61d), and a lower plate (61e), and the left plate (61a), the right plate (61b), the rear plate (61c), the upper plate (61d), and the lower plate (61e) may form an inner space (S2).

[0090] The size of the tray (61) may be smaller than the size of the body (5). The size of the tray (61) may be larger than the weight (62).

[0091] The tray (61) can be accommodated in the body (5) so as to be able to be lifted up and down in the direction (Z).

[0092] The weight assembly (6) may further include a lifting pulley (63) disposed on a tray (61); and a wire connector (64) disposed on the tray (61) and having a wire (4) connected thereto.

[0093] The elevator pulley (63) can be placed on the upper side of the upper plate (61c) of the tray (61).

[0094] The lifting pulley (63) may include an lifting bracket that is fastened to the upper surface of the upper plate (61c) of the tray (61) using a fastening member such as a screw, and an lifting roller that is rotatably arranged on the lifting bracket. The lifting roller may be rotatably connected to the lifting bracket about a horizontal axis. The lifting pulley (63) may include an inner pulley that is arranged inside the body (5).

[0095] The wire connector (64) can be spaced horizontally from the lifting pulley (63).

[0096] The wire connector (64) can be fastened to the upper surface of the upper plate (61c) of the tray (61) using a fastening member such as a screw.

[0097] An example of a wire connector (64) may include a bracket that is fastened to the upper surface of the upper plate (61d) of the tray (61) by a screw or the like and to which one end of the wire (4) is connected.

[0098] Another example of a wire connector (64) may include a turnbuckle fastened with a screw or the like to the upper surface of the top plate (61d) of the tray (61), an eyebolt coupled to the turnbuckle, and a ring to which the eyebolt is connected and to which one end of the wire (4) is connected.

[0099] The wire connector (64) is not limited to any type as long as it can firmly connect the wire (4) to the tray (61).

[0100] The wire (4) can be sequentially wound around the first fixed pulley (7), the lifting pulley (63), and the second fixed pulley (8).

[0101] When the wire device (3) includes a wire connector (64), a first fixed pulley (7), an elevation pulley (63), and a second fixed pulley (8), the inner wire (4A) may include a first inner wire portion positioned between the wire connector (64) and the first fixed pulley (7), a second inner wire portion positioned between the first fixed pulley (7) and the elevation pulley (63), and a third inner wire portion positioned between the elevation pulley (63) and the second fixed pulley (8).

[0102] The inner wire (4A) can be extended in a roughly zigzag shape in the space (S1).

[0103] If the wire device (3) includes only the wire connector (64) and the first fixed pulley (7) without the lifting pulley (63) and the second fixed pulley (8), the second inner wire part and the third inner wire part may not extend inside the body (5), and only the first inner wire part may extend.

[0104] On the other hand, when the wire device (3) includes all of the wire connector (64), the first fixed pulley (8), the lifting pulley (63) and the second fixed pulley (8), the first inner wire part, the second inner wire part and the third inner wire part can all extend inside the body (5), and the wire device (3) can accommodate a wire (4) that is the sum of the lengths of the second inner wire part and the third inner wire part inside the body (5), and the wire device (3) can secure a sufficiently long driving length extending outside the charger body (1).

[0105] The weight (62) may be placed singly or in multiples in the inner space (S2) of the tray (61).

[0106] The weight assembly (6) can have a variable number of weights (62). Two or more weights (62) can be stacked, and the weight of the tray assembly (6) can increase as the number of weights (62) accommodated in the inner space (S2) increases.

[0107] For example, the tray (61) may be 3 kg, the weight (62) may be 3 kg, up to 9 weights (62) may be stacked in the inner space (S2) of the tray (61), and the total weight of the weight assembly (6) may be 30 kg.

[0108] The number of weights (62) can be determined according to the weight of the charging cable (2) to which the wire (4) is connected.

[0109] The weight of the charging cable (2) may vary depending on the power capacity or heat generation method (air cooling or water cooling), and the number of weights (62) accommodated in the inner space (S2) may vary depending on the weight of the charging cable (2).

[0110] When the charging cable (2) is of low weight, three weights (62) can be stacked in the inner space (S2), when the charging cable (2) is of medium weight, six weights (62) can be stacked in the inner space (S2), and when the charging cable (2) is of high weight, nine weights (62) can be stacked in the inner space (S2).

[0111] The weight assembly (6) may further include a roller (65) for flow control.

[0112] A roller (65) for flow control can be placed on the tray (61) and can be in contact with the inner surface of the body (5).

[0113] The roller (65) for flow control may be configured to reduce frictional resistance between the tray (61) and the body (5).

[0114] The roller (65) for flow control may include a bracket mounted on the tray (61) and a roller that is arranged to rotate around a horizontal axis on the bracket and rolls along the inner surface of the body (5).

[0115] The tray (61) can be smoothly raised and lowered along the inner surface of the body (5) by a roller (65) for flow control.

[0116] The roller (65) for flow control may include an upper roller (66); and a lower roller (67).

[0117] The upper roller (66) can be rotatably arranged on the upper surface of the tray (61). The upper roller (66) can be arranged on the upper surface of the upper plate (61c) of the tray (61).

[0118] The lower roller (67) can be rotatably arranged on the lower surface of the tray (61). The lower roller (67) can be arranged on the lower surface of the lower plate (61e) of the tray (61).

[0119] The weight assembly (6) further includes a front cover (68).

[0120] The front cover (68) is connected to the tray (61) to prevent the weight (62) from coming off.

[0121] An upper fastening part that is fastened to the upper plate (61c) of the tray (61) may be formed at the top of the front cover (68), and a lower fastening part that is fastened to the lower plate (61e) of the tray (61) may be formed at the bottom of the front cover (68).

[0122] The horizontal width of the front cover (68) may be shorter than the horizontal width of the tray (61). The front cover (68) may be arranged to shield a portion of the front of the tray (61). The front cover (68) may be arranged to shield the center of the front of the tray (61).

[0123] The weight assembly (6) may further include a weight balancer (69).

[0124] A weight balancer (69) can be placed on the bottom of the tray (61).

[0125] A weight balancer (69) may be placed on the lower plate (61e) of the tray (61). The weight balancer (69) may be a bottom weight balancer. The weight balancer (69) may be an outer weight placed outside the inner space (S2).

[0126] The weight of the weight balancer (69) may be lighter than the weight of the weight (62).

[0127] For example, if the weight (62) is 3 ke, the weight balancer (69) may be 0.5 kg.

[0128] As many weights as possible can be placed on the weight tray (61) by the weight balancer (69).

[0129] The weight (62) accommodated in the inner space (S2) of the tray (61) may be a main weight balancer, and the weight balancer (69) arranged on the lower plate (61e) of the tray (61) may be a bottom weight balancer.

[0130] The weight balancer (69) can be fixed to the lower surface (61e) of the tray (61) using a fastening member such as a screw.

[0131] The wire device (4) may further include a left cover (9); and a right cover (10).

[0132] The left cover (9) and the right cover (10) can prevent the weight assembly (6) from being arbitrarily removed from the outside of the body (5).

[0133] The left cover (9) can be attached to the front of the body (5).

[0134] The right cover (10) is coupled to the front of the body (5) and can be spaced apart from the left cover (9) in the left-right direction.

[0135] The wire device may further include a top stopper (11).

[0136] The top stopper (11) can be positioned so as to protrude into the space (S1) of the body (5) on the upper part of the body (5). The top stopper (11) can be positioned so as to protrude into the space (S1) on at least one of the left plate (51) and the right plate (52) of the body (5).

[0137] The height of the top stopper (11) may be lower than the height of the first and second fixed pulleys (7)(8).

[0138] The weight assembly (6) can be hung upward on the top stopper (11). The top stopper (11) can determine the upper limit height of the weight assembly (6).

[0139] The weight assembly (6) can be caught by contacting the top spotter (11) before coming into contact with the first and second fixed pulleys (7)(8), and the top stopper (11) can prevent damage to the first and second fixed pulleys (7)(8) by the weight assembly (6).

[0140] The wire device (4) may further include an outer dray (12).

[0141] The outer dore (12) can guide the inner wire (4A) guided to the second fixed dore (8) to the outside of the charger body (1) and can be exposed.

[0142] The outer dore (12) can guide the outer wire (4B) located on the outside of the charger body (1) to the second fixed dore (8).

[0143] The outer drey (12) may be a third fixed drey horizontally spaced from the second fixed drey (8).

[0144] The extension direction of the wire (4) can be changed to the downward direction by the outer dremel (12).

[0145] The charger body (1) may further include a deco body (13) in which an outer dorre (12) is arranged.

[0146] The outer dremel (12) may include a bracket that is fastened to the deco body (13) using a fastening member such as a screw, and a roller that is rotatably arranged on the bracket. The roller may be rotatably connected to the bracket about a horizontal axis.

[0147] The deco body (13) can be formed to protrude from the charger body (1), or it can be manufactured separately from the outer body (1) and then attached to the outer body (1).

[0148] A deco body (13) may be provided on the upper part of the charger body (1). The deco body (13) may be positioned so as to protrude from the upper side of the charger body (1).

[0149] Figure 6 is an enlarged perspective view of the upper surface of the weight assembly according to the present embodiment;

[0150] Among the rollers (65) for flow control, the upper roller (66) may further include a first roller (65A) that rotates around a central axis in the front-back direction; and a second roller (65B) that rotates around a central axis in the left-right direction.

[0151] The first roller (65A) and the second roller (65B) constituting the upper roller (66) can be rotatably arranged on a bracket mounted on the upper surface of the upper plate (61d) of the tray (61) using a fastening member such as a screw.

[0152] The first roller (65A) may be provided in pairs. The pair of first rollers (65A) may include a left first roller that rolls along the left plate (51) of the body (5) and a right first roller that rolls along the right plate (52) of the body (5).

[0153] Four second rollers (65B) may be provided. The four second rollers (65B) may include a pair of rear rollers that roll along the rear plate (53) of the body (5), a front left roller that rolls along the left cover (9), and a front right roller that rolls along the right cover (10).

[0154] Fig. 7 is an enlarged perspective view of the lower surface of the weight assembly according to the present embodiment;

[0155] Among the rollers (65) for flow control, the lower roller (67) can be symmetrical with the upper roller (66).

[0156] Among the rollers (65) for flow control, the lower roller (67) may further include a first roller (65A) that rotates around a central axis in the front-back direction; and a second roller (65B) that rotates around a central axis in the left-right direction.

[0157] The first roller (65A) and the second roller (65B) constituting the lower roller (67) can be rotatably arranged on a bracket mounted on the lower surface of the lower plate (61e) of the tray (61) using a fastening member such as a screw.

[0158] The first roller (65A) may be provided in pairs. The pair of first rollers (65A) may include a left first roller that rolls along the left plate (51) of the body (5) and a right first roller that rolls along the right plate (52) of the body (5).

[0159] Four second rollers (65B) may be provided. The four second rollers (65B) may include a pair of rear rollers that roll along the rear plate (53) of the body (5), a front left roller that rolls along the left cover (9), and a front right roller that rolls along the right cover (10).

[0160] FIG. 8 is a perspective view showing the lower plate of the body when the weight assembly according to the present embodiment is raised.

[0161] The wire device (4) may further include a stopper (70) arranged on the upper surface of the lower plate (65) of the body (5).

[0162] When the external force is removed, the weight assembly (6) can fall to the lower plate (65) of the body (5) by its own weight, and the stopper (70) can minimize the impact generated when the weight assembly (6) falls.

[0163] The stopper (70) may be a bottom stopper formed of an elastic material such as rubber.

[0164] The stopper (70) may have a protrusion (70a or screw).

[0165] A groove (69a) into which a protrusion (70a) is inserted can be formed on the bottom surface of the weight balancer (69).

[0166] When the weight assembly (6) is dropped, the protrusion (70a) of the stopper (70) can be inserted into the groove (69a), and the weight assembly (6) can be dropped stably without distortion.

[0167] The above description is merely an example of the technical idea of ​​the present invention, and those skilled in the art will appreciate that various modifications and variations can be made without departing from the essential characteristics of the present invention.

[0168] Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of ​​the present invention but to explain it, and the scope of the technical idea of ​​the present invention is not limited by these embodiments.

[0169] The scope of protection of the present invention should be interpreted by the claims below, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the rights of the present invention.

Claims

1. A body installed on the frame of the charger body and having a space formed inside; A weight assembly that is movably accommodated in the above space; and A wire connected to the charging cable and elevating the weight assembly, The above weight assembly, A tray with an inner space formed; and At least one weight accommodated in the inner space charger.

2. In paragraph 1, Further comprising first and second fixed pulleys installed on the above body, The above weight assembly an elevator pulley placed on the above tray; and Further comprising a wire connector arranged on the tray and having the wires connected thereto, The above wire is a charger sequentially wound around the first fixed pulley, the lifting pulley and the second fixed pulley.

3. In paragraph 1, The above weight assembly A charger further comprising a flow control roller disposed on the tray and in contact with the inner surface of the tray.

4. In paragraph 3, The above roller for flow control A first roller that rotates around a central axis in the forward and backward direction; and A charger further comprising a second roller that rotates around a left-right central axis.

5. In paragraph 3, The above roller for flow control An upper roller rotatably arranged on the upper surface of the tray; and A charger comprising a lower roller rotatably arranged on the lower surface of the above tray.

6. In paragraph 1, The above weight assembly A charger further comprising a front cover coupled to the tray to prevent the weight from coming off.

7. In paragraph 1, Left cover coupled to the front of the above body; A charger further comprising a right cover coupled to the front of the body and spaced apart from the left cover in the left-right direction.

8. In paragraph 1, A wire penetration hole is formed in the above body through which the wire passes, The above wire extends outside the body and is connected to a charger charging cable.

9. In paragraph 8, The above charging cable includes a cable body extending outside the charger body, A charger in which one end of the wire is connected to the weight assembly, and the other end of the wire is connected to the cable body.

10. In paragraph 1, A charger further comprising a stopper arranged on the upper surface of the lower part of the body.

11. In paragraph 10, The above weight assembly A charger further comprising a weight balancer disposed on the bottom surface of the tray.

12. In paragraph 11, The above stopper has a protrusion, A charger having a groove formed on the bottom surface of the above weight balancer into which the above protrusion is inserted.

13. In paragraph 1, A charger further comprising a top stopper protruding toward the inner space on the tray.

Images