Charger and charging system

Abstract

The utility model provides a charger and a charging system, and belongs to the technical field of battery charging, and the charger is provided with a winding mechanism on a housing, so as to facilitate the winding of a power line outside the housing. The charger comprises a shell, a control panel, a power input end, an output interface and a winding mechanism. Wherein an accommodating cavity is formed in the shell; the control panel is mounted in the accommodating cavity, and an inverter circuit is arranged on the control panel; the power input end comprises a power line and an electric connection terminal, one end of the power line is electrically connected with the inverter circuit, the other end of the power line extends out of the shell, and the electric connection terminal is connected to the other end of the power line; the winding mechanism comprises a winding column and a blocking part, the winding column is arranged on the shell, the blocking part is located on the side, away from the shell, of the winding column, and the blocking part extends outwards from the circumferential outer edge of the winding column. According to the charger, the long power line on the charger can be stored and arranged, and the situation that the use experience of a user is affected due to the fact that the too long power line is difficult to store when the charger is used is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of battery charging, in particular to a charger and a charging system. Background Art

[0002] Currently, electric tools are being used more and more widely in the market, and the battery packs used with the tools are being used more and more frequently, which in turn increases the demand for fast charging of the battery packs.

[0003] In order to meet the charging requirements of the battery pack in different usage scenarios, the chargers adapted to the charging requirements of the battery pack are often provided with a long power cord. During the charging process, the battery pack is installed on the charger, and the charger is connected to the power supply remotely through the power cord to charge the battery pack. However, the charger with this structure is difficult to place and store due to the long power cord, which affects the user experience.

[0004] Therefore, it is necessary to design a charger and a charging system to solve the above technical problems. Utility Model Content

[0005] In view of the above shortcomings of the prior art, the utility model provides a charger and a charging system. The charger is provided with a winding mechanism to facilitate winding the power cord outside the housing, thereby solving the technical problem that the power cord of the charger in the prior art is too long and difficult to store and organize.

[0006] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a charger, which includes: a shell, a control panel, a power line output interface and a winding mechanism.

[0007] Among them, a accommodating cavity is provided in the shell; the control board is installed in the accommodating cavity; one end of the power cord is electrically connected to the control board, and the other end of the power cord extends to the outside of the shell; the output interface is configured on at least one interface of the shell, and its interior is electrically connected to the control board; the winding mechanism includes a winding post and a blocking part, the winding post is arranged on the shell, and the blocking part is cooperated with the winding post to limit the power cord in the axial direction of the winding post.

[0008] In one example of the utility model, the blocking portion is located on the side of the winding post away from the shell and extends outward from the circumferential outer edge of the winding post. The power cord is circumferentially wound around the outside of the winding post and fixed between the blocking portion and the shell.

[0009] In an example of the present invention, the number of the blocking parts is at least two, and the at least two blocking parts are symmetrically arranged on the circumferential outer side of the winding post, and the blocking parts extend radially outward of the winding post.

[0010] In an example of the utility model, a limit snap-in is further provided on the shell, and the limit snap-in and the winding mechanism are provided on the same side of the shell, and the power cord extending out of the shell is clamped into the limit snap-in.

[0011] In an example of the present utility model, the shell and the winding post are provided with matching mounting holes and clamping parts. When the clamping part is clamped into the mounting hole, the winding post can rotate relative to the shell.

[0012] In an example of the present invention, a guide surface is provided at the outer edge of the clamping component, and the guide surface guides the outer peripheral surface of the clamping component to pass through the installation hole.

[0013] In an example of the utility model, a limiting groove is provided on the mounting hole, a protrusion corresponding to the limiting groove is provided on the clamping member, and the guide surface is provided at the outer edge of the protrusion.

[0014] In one example of the utility model, the shell has a first opening, the winding mechanism is arranged at the location of the first opening, the winding pole is provided with a second opening, and the other end of the power cord extends outward through the first opening and the second opening in sequence.

[0015] In an example of the utility model, the winding post is rotatably mounted on the housing, a coil spring is arranged between the winding post and the housing, and the winding post is driven by the coil spring arranged between the winding post and the housing.

[0016] In one example of the utility model, a clamping column is provided on the shell, and the coil spring is fixed on the clamping column; an inner cavity is provided in the winding column, and a buckle is provided on the inner wall of the inner cavity, the coil spring is accommodated in the inner cavity, and one end of the coil spring is clamped and fixed in the buckle.

[0017] In an example of the present utility model, the shell and the winding post are provided with matching limiting holes and limiting members, and when the limiting member is inserted into the limiting hole, the winding post is fixed relative to the shell.

[0018] In one example of the utility model, at least two groups of vents are also provided on the shell; wherein the at least two groups of vents include a first vent and a second vent, the first vent is located on the side wall of the shell, and the second vent is located at the bottom of the shell.

[0019] In an example of the present invention, a ventilation duct is further provided in the shell, two ends of the ventilation duct are respectively connected with the first ventilation port and the second ventilation port, and the control panel is at least partially located in the ventilation duct.

[0020] In an example of the present invention, the charger further includes a fan, which is installed in the wall or the accommodating cavity of the shell, and the fan is arranged opposite to the first vent.

[0021] In an example of the utility model, an isolation groove is further provided on the shell, and the isolation groove is arranged around the periphery of the fan, the isolation groove is arranged facing the first ventilation opening, and the side wall of the isolation groove surrounds the first ventilation opening.

[0022] In an example of the present invention, an isolation net is provided at the first vent.

[0023] The utility model also provides a charging system, which includes a battery pack and a charger, wherein the charger is electrically connected to the battery pack; the charger includes a shell, a control panel, a power input terminal, an output interface and a winding mechanism.

[0024] Among them, a accommodating cavity is provided in the shell; a control board is installed in the accommodating cavity, and an inverter circuit is provided on the control board; the power input end includes a power cord and an electrical terminal, one end of the power cord is electrically connected to the inverter circuit, the other end of the power cord extends to the outside of the shell, and the electrical terminal is connected to the other end of the power cord; the output interface is provided on the shell and is electrically connected to the inverter circuit; the winding mechanism includes a winding post and a blocking part, the winding post is provided on the shell, the blocking part is located on the side of the winding post away from the shell, and the blocking part extends outward from the circumferential outer edge of the winding post.

[0025] The charger of the utility model is provided with a winding mechanism on the outside of the shell, and the winding mechanism includes a winding post and a blocking portion. The winding post is fixed on the outside of the shell, and the blocking portion is provided on the side of the winding post away from the shell, and extends outward from the circumferential outer edge of the winding post. The power cord extending out of the shell can be wound onto the winding post and fixed between the shell and the blocking portion, thereby realizing the storage and arrangement of the long power cord on the charger, and avoiding the user's experience being affected by the difficulty in storing the too long power cord when the charger is in use. Therefore, the utility model effectively overcomes some practical problems in the prior art and has a high utilization value and use significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A three-dimensional view of a charger in one embodiment of the utility model;

[0028] Figure 2 This is a schematic diagram of the shaft side structure of a charger in one embodiment of the utility model;

[0029] Figure 3 A schematic cross-sectional structure diagram of a charger in one embodiment of the utility model;

[0030] Figure 4 This is another cross-sectional structural schematic diagram of a charger in one embodiment of the utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the housing at the first vent in one embodiment of the utility model;

[0032] Figure 6 This is a schematic diagram of the structure of a charger in an embodiment of the utility model when viewed from above;

[0033] Figure 7 This is a schematic diagram of the coordination between the winding mechanism and the housing in one embodiment of the utility model;

[0034] Figure 8 This is a schematic diagram of the structure of the housing in cooperation with the winding mechanism in one embodiment of the utility model;

[0035] Fig. 9 This is a structural schematic diagram of a winding mechanism in one embodiment of the utility model;

[0036] Fig.10 This is an exploded view of the cooperation between the winding mechanism and the housing in another embodiment of the utility model;

[0037] Fig.11 This is a schematic structural diagram of the cooperation between the winding mechanism and the housing in another embodiment of the utility model;

[0038] Fig.12 for Fig.11 Section view in the AA direction;

[0039] Fig.13 This is a schematic diagram of the structure of the housing in another embodiment of the utility model where it cooperates with the winding mechanism;

[0040] Fig.14 This is a structural schematic diagram of a winding mechanism in another embodiment of the utility model;

[0041] Fig.15 This is an exploded view of the cooperation between the winding mechanism and the housing in another embodiment of the utility model;

[0042] Fig.16 It is a side view structural diagram of the matching position of the housing and the winding mechanism in another embodiment of the utility model;

[0043] Fig.17 for Fig.16 Section view in the middle BB direction;

[0044] Fig.18 This is a schematic diagram of the structure of the housing in another embodiment of the utility model where it cooperates with the winding mechanism;

[0045] Fig.19 This is a structural schematic diagram of a winding mechanism in another embodiment of the utility model;

[0046] Fig. 20 It is a top view structural schematic diagram of a winding mechanism in another embodiment of the utility model;

[0047] Fig.21 It is a structural schematic diagram of a coil spring in another embodiment of the utility model.

[0048] Component number description

[0049] 100, housing; 110, accommodating cavity; 111, ventilation duct; 112, isolation groove; 120, first housing; 130, second housing; 140, mounting hole; 141, limiting groove; 142, top plate; 143, mounting column; 150, limiting hole; 151, through hole; 160, limiting bayonet; 170, first opening; 180, first ventilation port; 181, isolation net; 190, second ventilation port; 200, control panel; 300, power input terminal; 310, power cord; 320, electrical connection Terminal; 400, output interface; 500, winding mechanism; 510, winding post; 511, clamping part; 5111, protrusion; 5112, guide surface; 5113, second inner cavity; 5114, buckle; 512, first inner cavity; 513, limiter; 5131, fixing hole; 514, second opening; 520, blocking part; 530, coil spring; 531, center through hole; 532, clamping end; 600, fan; 700, operation panel; 710, switch; 720, display light. DETAILED DESCRIPTION

[0050] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementation schemes, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or under the conditions recommended by the manufacturers.

[0051] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present utility model without substantially changing the technical content.

[0052] See also Figures 1 to 21 The utility model provides a charger and a charging system. The charger is provided with a winding mechanism on a shell, the winding mechanism includes a winding post and a blocking portion, the winding post is fixed on the shell, the blocking portion is arranged on the side of the winding post away from the shell, and extends outward from the circumferential outer edge of the winding post. The winding mechanism uses the blocking portion away from the side of the shell to limit and fix the power cord wound on the circumferential outer side of the winding post between the blocking portion and the shell, so as to realize the winding and storage of the power cord outside the shell, thereby solving the technical problem in the prior art that the power cord on the charger is too long and difficult to store and organize.

[0053] See also Figures 1 to 6 The charger includes a housing 100, a control board 200, a power input terminal 300, an output interface 400 and a winding mechanism 500. The housing 100 is provided with a receiving cavity 110; as long as the receiving cavity 110 required for installation is provided, the structural form of the housing 100 may not be limited, for example, it may be an integral housing 100 with an installation opening, or it may be a combined housing 100 composed of two or more pieces.

[0054] For example, Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in some embodiments, the housing 100 may be composed of a first housing 120 and a second housing 130, wherein the first housing 120 is hollow inside and has a receiving cavity 110, one side of the first housing 120 is open to the outside, and the second housing 130 is detachably mounted on the side of the first housing 120 that is open to the outside, so as to close the receiving cavity 110 in the first housing 120. It should be noted that the detachable mounting method of the second housing 130 on the first housing 120 may not be limited, and may be, for example, a screw or bolt connection, a snap connection, an interference fit, or other mounting methods.

[0055] See also Figure 3 The control board 200 is detachably mounted in the housing cavity 110 of the housing 100. The control board 200 is provided with an inverter circuit. It should be noted that the inverter circuit can be any suitable inverter circuit structure, which will not be described in detail. In addition, the control board 200 can also have other circuits at the same time, such as a control logic circuit, a filter circuit, a low voltage protection circuit, a short circuit protection circuit, and one or more of the common circuits of existing chargers.

[0056] See also Figure 1 , Figure 3 and Figure 4 The output interface 400 is provided on the housing 100. The output interface 400 is electrically connected to the inverter circuit in the control board 200. The output interface 400 is electrically connected to the output terminal of the inverter circuit. The output interface 400 is used to electrically connect to the required charging device, for example, the output interface 400 is used to electrically connect to the battery pack. The specific structure of the output interface 400 can be flexibly selected according to the power input structure of the required charging device. If the power input structure of the required charging device is a female terminal, the output interface 400 on the charger can be a male plug that matches the female terminal; if the power input structure of the required charging device is a male plug, the output interface 400 on the charger can be a female terminal that matches the male plug.

[0057] See also Figures 1 to 3 One end of the power input terminal 300 is electrically connected to the inverter circuit of the control board 200, and the other end of the power input terminal 300 is used to be electrically connected to an external power source, so as to receive external electric energy and transmit the external electric energy to the charging device through the voltage output end of the charger. The power input terminal 300 includes a power line 310 and an electrical terminal 320. One end of the power line 310 is electrically connected to the input terminal of the inverter circuit, and the other end of the power line 310 extends from the accommodating cavity 110 to the outside of the housing 100. The electrical terminal 320 is connected to the other end of the power line 310, and the electrical terminal 320 is used to be electrically connected to an external power source. It should be noted that the specific structure of the electrical terminal 320 can be flexibly selected according to the power output structure of the external power supply. If the power output structure of the external power supply is a female terminal, the electrical terminal 320 on the power cord 310 can be a male plug that matches the female terminal; if the power output structure of the external power supply is a male plug, the electrical terminal 320 on the power cord 310 can be a female terminal that matches the male plug.

[0058] See also Figure 2 and Figure 6The winding mechanism 500 is disposed on the housing 100, and can be used to wind and store the power cord 310 extending out of the housing 100. The winding mechanism 500 includes a winding post 510 and a blocking portion 520. The winding post 510 is fixedly disposed on the housing 100. In one embodiment, the winding post 510 and the housing 100 can be fixedly connected by integral molding. In another embodiment, the winding post 510 and the housing 100 can also be designed in a split manner, and they are fixed to the housing 100 by buckles or screws, or the winding post 510 and the housing 100 can also be directly connected by threads. The winding post 510 extends outward from the housing 100, and the shape of the winding post 510 is not limited, for example, it can be any circumferentially closed-loop column shape such as a cylinder or a rhombus. The blocking portion 520 is fixed on the winding post 510. The blocking portion 520 is located on the side of the winding post 510 away from the housing 100. The blocking portion 520 extends outward from the circumferential outer edge of the winding post 510 and extends outward along the radial direction of the winding post 510. When the power cord 310 on the charger is stored and sorted, the power cord 310 located outside the housing 100 can be wound around the outside of the winding post 510 along the circumferential direction. The multiple turns of the power cord 310 wound around the circumferential periphery of the winding post 510 are blocked by the blocking portion 520 and are limited in the gap between the blocking portion 520 and the housing 100, thereby realizing the winding and storage on the housing 100.

[0059] It should be noted that the number of blocking portions 520 provided on the winding mechanism 500 is not limited, and the blocking portion 520 extending from the circumferential outer edge of the winding pole 510 may be one or more.

[0060] In some embodiments, the number of blocking portions 520 is at least two, and at least two blocking portions 520 are symmetrically arranged on the circumferential outer side of the winding post 510 around the central axis of the winding post 510, and at least two blocking portions 520 extend outwardly in the radial direction of the winding post 510 to block the multiple turns of the power cord 310 wound around the outer periphery of the winding post 510 in different radial directions to prevent the power cord 310 from falling off the winding post 510. Of course, in other embodiments, at least two blocking portions 520 can also be asymmetrically arranged along the circumferential outer side of the winding post 510.

[0061] See also Figure 1 and Figure 2In some embodiments, a limit snap-in 160 is further provided on the housing 100. The limit snap-in 160 and the winding mechanism 500 are provided on the same side of the housing 100. For example, the winding mechanism 500 and the limit snap-in 160 are both provided on the second housing 130. The limit snap-in 160 and at least a portion of the winding post 510 are located on the same plane. The limit snap-in 160 is provided with an opening on the side facing the outside of the housing 100. The end of the power cord 310 wound on the outside of the winding post 510 can pass through the limit snap-in 160 and extend to the outside of the second housing 130. The portion of the power cord 310 near the end can be inserted into the limit snap-in 160 through the opening. The limit snap-in 160 limits the multi-turn power cord 310 wound on the winding post 510 to prevent the power cord 310 wound on the winding post 510 from loosening and falling off.

[0062] See also Figure 6 and Figure 7 , the housing 100 is provided with a first opening 170, the other end of the power cord 310 extends out of the housing 100 from the first opening 170, and the winding mechanism 500 is provided at or near the first opening 170, so that the power cord 310 extending out of the housing 100 can be wound onto the winding post 510. For example, in some embodiments, the first opening 170 is provided on the second housing 130 at the bottom of the charger, the winding mechanism 500 is provided at the position of the first opening 170 on the second housing 130, the winding post 510 is hollowed out on the side facing the housing 100 to form a first inner cavity 512, the first inner cavity 512 of the winding post 510 faces the first opening 170, and a second opening 514 is provided on the side wall of the first inner cavity 512. The other end of the power cord 310 can pass through the first opening 170 and the second opening 514 in sequence and extend out of the housing 100.

[0063] In some embodiments, the housing 100 and the winding post 510 are provided with matching limiting holes and limiting members, wherein one of the limiting member and the limiting hole is provided on the housing 100, and the other of the limiting member and the limiting hole is provided on the winding post 510. When the limiting member and the limiting hole are engaged and clamped, the winding post 510 is relatively fixed to the housing 100. For example Figures 7 to 9As shown, in one example, a limiting hole 150 is provided on the housing 100, and a limiting member 513 corresponding to the limiting hole 150 is provided on the winding post 510. The limiting member 513 is protrudingly provided on the side of the winding post 510 facing the housing 100. The shape of the limiting member 513 matches the limiting hole 150. The limiting member 513 is inserted and fixed in the limiting hole 150. The winding post 510 is fixed to the housing 100 by the insertion and cooperation between the limiting member 513 and the limiting hole 150. In addition, in addition to the insertion and cooperation with the limiting hole 150 to achieve fixed connection, the limiting member 513 can also be fixedly connected by means of threaded connection, screw connection or mortise and tenon connection. For example, the threaded connection is suitable for only one limiting member 513 and one limiting hole 150. The outer edge surface of the limiting member 513 is provided with an external thread, and the inner periphery of the limiting hole 150 is provided with an internal thread, and the two are connected by threads. The screw connection and the mortise and tenon connection are not affected by the number of the limiting member 513 and the limiting hole 150. Specifically, the limiting member 513 is provided with a fixing hole 5131 at one end facing the limiting hole 150, and a through hole 151 is provided at the bottom of the limiting hole 150. In the example where the limiting member 513 is connected with the limiting hole 150 by screws, the screw may pass through the through hole 151 of the shell 100 on the side of the shell 100 facing the accommodating cavity 110 and be connected with the fixing hole 5131 of the limiting member 513 to achieve the fixed setting of the limiting member 513 on the shell 100; in the example where the limiting member 513 is connected with the limiting hole 150 by mortise and tenon, the mortise and tenon joint may pass through the through hole 151 of the shell 100 on the side of the shell 100 facing the accommodating cavity 110 and be matched with the fixing hole 5131 of the limiting member 513 by mortise and tenon to achieve the fixed setting of the limiting member 513 on the shell 100. Of course, in other examples, the stopper 513 and the housing 100 can also be connected by hot riveting. In addition, in some other embodiments, a stopper hole is provided on the winding post 510, and a stopper corresponding to the stopper hole is provided on the housing 100. The stopper protrudes and is arranged on the side of the housing 100 facing the winding post 510. The shape of the stopper matches the stopper hole, and the stopper is inserted and fixed in the stopper hole. The winding post 510 is fixed on the housing 100 by the insertion and matching of the stopper hole and the stopper.

[0064] It should be noted that the number of the limiting holes 150 and the limiting members 513 is not limited. The number of the limiting holes 150 provided on the shell 100 and the limiting members 513 provided on the winding post 510 is the same, and can be one or more. For example, in one embodiment, a limiting hole 150 is provided on the shell 100, and a limiting member 513 is correspondingly provided on the winding post 510. The limiting member 513 is provided on the side of the winding post 510 facing the shell 100 and is located on the central axis of the winding post 510. In another embodiment, At least two limiting holes 150 are provided on the shell 100, and the same number of limiting members 513 as the limiting holes 150 are correspondingly provided on the winding post 510. For example, there are three limiting holes 150 and limiting members 513 between the shell 100 and the winding post 510, at least two limiting members 513 are located on the side of the winding post 510 facing the shell 100, and at least two limiting members 513 are respectively inserted into their corresponding limiting holes 150, and the limiting members 513 and limiting holes 150 that cooperate with each other are symmetrically arranged relative to the central axis of the winding post 510.

[0065] In other embodiments, the housing 100 and the winding post 510 are provided with matching mounting holes and clamping parts, wherein one of the mounting hole and the clamping part is provided on the housing 100, and the other of the mounting hole and the clamping part is provided on the winding post 510. When the clamping part is clamped into the mounting hole, the winding post 510 can rotate relative to the housing 100. Figures 10 to 14 As shown, in some examples, a mounting hole 140 is provided on the shell 100, and a clamping member 511 is provided on the winding post 510. The clamping member 511 is located on the side of the winding post 510 facing the shell 100. The clamping member 511 passes through the mounting hole 140 from the outside of the shell 100, enters and is clamped on the side of the mounting hole 140 facing the accommodating cavity 110. The clamping member 511 cooperates with the mounting hole 140 to clamp the winding post 510 to the shell 100. Among them, the clamping component 511 is protrudingly arranged on the side of the winding pole 510 facing the shell 100, the top shape of the clamping component 511 matches the shape of the mounting hole 140, and a guide surface 5112 is arranged at the outer edge of the top of the clamping component 511. The guide surface 5112 guides the outer peripheral surface of the top of the clamping component 511 from the outside of the shell 100 through the mounting hole 140, and makes the top of the clamping component 511 entering the shell 100 abut against the wall of the side of the mounting hole 140 facing the accommodating cavity 110. It should be noted that the structural form of the guide surface 5112 is not limited. For example, the guide surface 5112 can be a guide slope, wherein the outer diameter of the clamp 511 at the guide slope gradually increases from top to bottom, and the outer diameter of the top of the guide slope is less than or equal to the inner diameter of the mounting hole 140, so that the top structure of the clamp 511 can smoothly pass through the mounting hole 140, and the outer diameter of the bottom of the guide slope is greater than the inner diameter of the mounting hole 140, so that the clamp 511 entering the inner side of the shell 100 can abut against the outer peripheral wall of the mounting hole 140 facing the accommodating cavity 110.

[0066] like Fig.10 , Fig.13 and Fig.14 As shown, in some examples, a limiting groove 141 is provided on the outer periphery of the mounting hole 140, and the limiting groove 141 extends outward in the radial direction of the mounting hole 140, and a protrusion 5111 corresponding to the limiting groove 141 is provided on the clamping member 511, and the protrusion 5111 is located at the outer edge of the top of the clamping member 511, and the protrusion 5111 matches the shape of the limiting groove 141, and a guide surface 5112 is provided at the outer edge of the protrusion 5111, and the guide surface 5112 is set as the outer peripheral surface on both sides of the protrusion 5111, and the guide surface 5112 can guide the protrusion 5111 to be clamped into the limiting groove 141 toward the side of the accommodating cavity 110. Corresponding protrusions 5111 and limiting grooves 141 are provided between the clamping member 511 and the mounting hole 140, which not only facilitate the clamping and positioning of the clamping member 511 in the mounting hole 140, but also help to increase the clamping area of ​​the clamping member 511 on the shell 100, making the clamping fit between the clamping member 511 and the shell 100 more stable.

[0067] See also Figures 15 to 18 In some other embodiments, the winding mechanism 500 is rotatably mounted on the housing 100, a coil spring 530 is disposed between the winding mechanism 500 and the housing 100, the coil spring 530 is coaxially disposed with the winding mechanism 500, and the coil spring 530 is connected to the housing 100 and the winding mechanism 500 respectively. The winding mechanism 500 can utilize the elastic reset characteristics of the coil spring 530 to drive itself to rotate, thereby driving the power cord 310 to be recovered and wound on the winding mechanism 500. In one example, the coil spring 530 is fixed on the housing 100, and one end of the outer periphery of the coil spring 530 is fixedly connected to the winding post 510. The other end of the power cord 310 passes through the first opening 170 of the housing 100 and the second opening 514 of the winding post 510 in sequence to extend to the outside of the housing 100, and the end of the power cord 310 extending to the housing 100 is fixed on the winding post 510, and the other end of the power cord 310 is connected to the electrical terminal 320. When the power cord 310 outside the shell 100 is pulled, the power cord 310 will drive the winding post 510 to rotate on the shell 100. Since the coil spring 530 is fixedly connected to the shell 100 and the winding post 510 respectively, it will also rotate and deform relative to the shell 100 when the power cord 310 is pulled. After the power cord 310 is pulled, the coil spring 530 elastically resets and drives the winding post 510 to rotate relative to the shell 100. The rotating winding post 510 further drives the end of the power cord 310 fixed on the winding post 510 to rotate along, thereby driving the power cord 310 to be wound around the circumferential outer side of the winding post 510, thereby completing the automatic retraction of the power cord 310.

[0068] like Figures 18 to 21As shown, in one example, the winding mechanism 500 is coaxially clamped on the mounting hole 140 of the housing 100 through the clamping member 511, the winding post 510 rotates relative to the housing 100 in the mounting hole 140, and the coil spring 530 is arranged between the clamping member 511 and the mounting hole 140, and is respectively fixedly connected to the housing 100 and the clamping member 511, and the coil spring 530 is used to drive the power cord 310 to be wound and retracted to the outside of the winding post 510 by resetting the deformation after the power cord 310 is pulled. Specifically, the housing 100 is provided with a top plate 142 at the mounting hole 140, the top plate 142 is located on the side of the mounting hole 140 facing the accommodating cavity 110, the top plate 142 is arranged opposite to the mounting hole 140, and a certain gap is left between the top plate 142 and the mounting hole 140 and the housing 100 outside the mounting hole 140, so as to accommodate the top structure of the clamping member 511 clamped to the inner side of the housing 100. A clamping column 143 is provided on the top plate 142, and the clamping column 143 is provided on the side of the top plate 142 facing the outside of the housing 100. The clamping column 143 extends outward from the housing 100 along the central axis direction of the winding column 510, and the coil spring 530 is coaxially fixed on the clamping column 143 through the central through hole 531. A second inner cavity 5113 is provided on the clamping member 511 of the winding column 510, and the second inner cavity 5113 is provided on the side of the clamping member 511 facing the mounting hole 140, and the second inner cavity 5113 is openly provided on the side facing the mounting hole 140, and a buckle 5114 is provided on the inner wall of the second inner cavity 5113. When the clamping part 511 of the winding mechanism 500 is clamped onto the shell 100 through the mounting hole 140, the coil spring 530 fixed on the clamping column 143 is accommodated in the second cavity and is coaxially arranged between the clamping column 143 and the winding column 510. A clamping end 532 matching the buckle 5114 is provided on the outermost periphery of the coil spring 530. The clamping end 532 is clamped and fixed in the buckle 5114 so that the coil spring 530 is fixedly connected to the winding column 510 in the second inner cavity 5113.

[0069] See also Figures 2 to 5 , at least two groups of vents are provided on the housing 100 so that the accommodating cavity 110 is in communication with the outside. In some embodiments, the at least two groups of vents include a first vent 180 and a second vent 190, the first vent 180 is located on the side wall of the housing 100, the second vent 190 is located at the bottom of the housing 100, and both the first vent 180 and the second vent 190 are in communication with the accommodating cavity 110. For example, in one example, the first vent 180 is provided on the first housing 120, and the second vent 190 is provided on the second housing 130, and is in communication with the outside through a gap or opening on the second housing 130.

[0070] In one embodiment, the accommodating chamber 110 is further provided with a ventilation passage 111, and the two ends of the ventilation passage 111 are respectively connected to the first ventilation port 180 and the second ventilation port 190, and the control board 200 is at least partially provided in the ventilation passage 111. The provision of the ventilation passage 111 in the accommodating chamber 110 can increase the airflow velocity between the first ventilation port 180 and the second ventilation port 190, thereby improving the cooling efficiency of the ventilation airflow for the control board 200. It is understandable that the control board 200 can be completely located in the ventilation passage 111, or some parts of the control board 200 can be located in the ventilation passage 111, and some parts can be understood as high-power components.

[0071] like Figure 2 and Figure 4 As shown, an operation panel 700 is also configured on one wall of the housing 100. The operation panel 700 is used to input commands. For example, the operation panel 700 is provided with a switch key 710. The switch key 710 inputs power-on and power-off commands to the charger by responding to pressing or touching. In addition, a status display area may also be configured on the operation panel 700, such as a display light 720 for displaying the current charging process of the battery pack.

[0072] like Figures 3 to 5 As shown, although only the vents connected to the accommodating chamber 110 can play a role in heat dissipation, in order to obtain a better heat dissipation effect, in some embodiments, the charger also includes a fan 600, which is installed in the wall of the housing 100 or the accommodating chamber 110, and the fan 600 is electrically connected to the inverter circuit to obtain power support. The fan 600 is arranged opposite to the first vent 180, the air suction port of the fan 600 faces the accommodating chamber 110, and the air outlet of the fan 600 faces the first vent 180. The fan 600 drives the cooling airflow to flow in from the second vent 190 and out from the first vent 180. In the accommodating chamber 110, the cooling airflow driven by the fan 600 can directly blow the control board 200, or indirectly cool the control board 200, for example, driving the airflow around the control board 200 to flow, and indirectly cool the control board 200.

[0073] In one example, the fan 600 is disposed in the ventilation duct 111. Driven by the fan 600, the cooling airflow flows into the ventilation duct 111 from the second ventilation port 190, passes through the ventilation duct 111, and flows out from the first ventilation port 180. The cooling airflow flowing in the ventilation duct 111 directly blows the control board 200 to cool the control board 200. It should be noted that the fan 600 can also be directly installed on the wall of the housing 100, such as the outer wall, the inner wall, or the space inside the wall, as long as it can provide power for the cooling airflow.

[0074] In another embodiment, the air intake port of the fan 600 faces the first vent 180 , and the air outlet of the fan 600 faces the accommodating cavity 110 . The fan 600 drives the cooling airflow to flow in from the first vent 180 and out from the second vent 190 .

[0075] Of course, in other embodiments, the ventilation duct 111 may not be configured, and the first ventilation port 180 and the second ventilation port 190 are both connected to the accommodating cavity 110, one of the first ventilation port 180 and the second ventilation port 190 is an air inlet, and the other is an air outlet, and the control panel 200 is set on the heat dissipation path from the air inlet to the air outlet.

[0076] In addition, a vent may be provided on the interface of the output interface 400 opposite to the battery pack to allow the heat inside the charger to be better dissipated.

[0077] like Figures 3 to 5 As shown, in some embodiments, an isolation groove 112 is further provided on the shell 100, and the isolation groove 112 is arranged around the periphery of the fan 600. The groove body of the isolation groove 112 is open to the first vent 180, and the bottom surface of the isolation groove 112 surrounds the fan 600. At least part of the side wall of the isolation groove 112 surrounds the first vent 180. For example, the side wall of the isolation groove 112 is arranged around the bottom and both sides of the first vent 180. The above-mentioned isolation groove 112 is set up, on the one hand, to form an isolation structure around the first vent 180 to prevent liquid that splashes into the first vent 180 from entering the accommodating chamber 110 and contacting electrical structures such as the control board 200, causing the charger to short-circuit and fail; on the other hand, the fan 600 can be almost wrapped to form an open ring body facing the first vent 180, thereby preventing the fan 600 from forming return air when blowing outwards and affecting the heat dissipation of the internal structure of the charger, thereby improving the efficiency of the fan 600 in extracting the airflow in the accommodating chamber 110, and improving the heat dissipation efficiency of the fan 600 for the structure in the accommodating chamber 110.

[0078] In addition, if Figures 2 to 5 As shown, in order to further prevent rainwater or domestic water from pouring into the accommodating cavity 110 through the first vent 180, in some embodiments, an isolation net 181 is provided at the first vent 180, and the isolation net 181 covers the opening of the first vent 180 to block external liquid. The isolation net 181 can be installed on the outside of the first vent 180, or on the inside of the first vent 180, and its connection method can be a detachable method, specifically, it can be connected by a buckle or a screw or a screw. Of course, a fixed connection method, such as welding, can also be adopted.

[0079] The utility model also provides a charging system, which includes a battery pack (not shown) and a charger electrically connected to the battery pack, and the charger can be the charger described in any of the above embodiments. In some embodiments, the charger includes: a housing 100, a control board 200, a power input terminal 300, an output interface 400 and a winding mechanism 500. A housing cavity 110 is provided in the shell 100; the control board 200 is installed in the housing cavity 110, and an inverter circuit is provided on the control board 200; the power input end 300 includes a power cord 310 and an electrical terminal 320, one end of the power cord 310 is electrically connected to the inverter circuit, the other end of the power cord 310 extends to the outside of the shell 100, and the electrical terminal 320 is connected to the other end of the power cord 310; the output interface 400 is provided on the shell 100 and is electrically connected to the inverter circuit; the winding mechanism 500 includes a winding post 510 and a blocking portion 520, the winding post 510 is provided on the shell 100, the blocking portion 520 is located on the side of the winding post 510 away from the shell 100, and the blocking portion 520 extends outward from the circumferential outer edge of the winding post 510. When the power cord 310 on the charger is stored and organized, the power cord 310 located outside the shell 100 can be wound circumferentially around the outside of the winding pole 510. The multiple turns of the power cord 310 wound around the circumference of the winding pole 510 are blocked by the blocking portion 520 and fixed in the gap between the blocking portion 520 and the shell 100, thereby achieving winding and storage on the shell 100.

[0080] In some embodiments, the charging system of the utility model can be applied to the power systems of garden tools such as lawn mowers, hair dryers, pruning machines, chain saws, push lawn mowers, cleaning machines, vacuum cleaners, smart lawn mowers, smart cleaning equipment and riding lawn mowers. In the charging system, the battery pack can power the lawn mowers, hair dryers, pruning machines, chain saws, push lawn mowers, cleaning machines, vacuum cleaners, smart lawn mowers, smart cleaning equipment and riding lawn mowers; when the battery pack needs to be charged, the battery pack can be removed from the garden tool and then inserted into the charger to charge the battery pack.

[0081] In summary, the charger of the utility model has a winding mechanism disposed on the outside of the shell, and the winding mechanism includes a winding post and a blocking portion. The winding post is fixed on the outside of the shell, and the blocking portion is disposed on the side of the winding post away from the shell, and extends outward from the circumferential outer edge of the winding post. The power cord extending out of the shell can be wound onto the winding post and fixed between the shell and the blocking portion, thereby realizing the storage and arrangement of the long power cord on the charger, and avoiding the user's experience being affected by the difficulty in storing the overly long power cord when the charger is in use. Therefore, the utility model effectively overcomes some practical problems in the prior art and has high utilization value and use significance.

[0082] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A charger, characterized in that: include: A housing having a receiving cavity disposed therein; A control panel is installed in the accommodating cavity; A power cord, one end of which is electrically connected to the control board, and the other end of which extends out of the housing; An output interface, arranged on at least one interface of the housing, and internally electrically connected to the control board; The winding mechanism comprises a winding post and a blocking portion, wherein the winding post is arranged on the housing, and the blocking portion is arranged in cooperation with the winding post to limit the power cord in the axial direction of the winding post.

2. The charger according to claim 1, characterized in that: The blocking portion is located on a side of the winding post away from the shell and extends outward from the circumferential outer edge of the winding post. The power cord is circumferentially wound around the outer side of the winding post and is limited between the blocking portion and the shell.

3. The charger according to claim 1, characterized in that: The number of the blocking parts is at least two, and at least two of the blocking parts are symmetrically arranged on the circumferential outer side of the winding pole, and the blocking parts extend outwardly in the radial direction of the winding pole.

4. The charger according to claim 1, characterized in that: The shell is also provided with a limit snap-in, and the limit snap-in and the winding mechanism are arranged on the same side of the shell, and the power line extending out of the shell is clamped into the limit snap-in.

5. The charger according to claim 1, characterized in that: The shell and the winding post are provided with matching mounting holes and clamping parts. When the clamping part is clamped into the mounting hole, the winding post can rotate relative to the shell.

6. The charger according to claim 5, characterized in that: A guide surface is arranged at the outer edge of the clamping component, and the guide surface guides the outer peripheral surface of the clamping component to pass through the mounting hole.

7. The charger according to claim 1, characterized in that: The winding post is rotatably mounted on the housing and is driven by a coil spring arranged between the winding post and the housing.

8. The charger according to claim 7, characterized in that: The shell is provided with a clamping column, and the coil spring is fixed on the clamping column; the winding column is provided with an inner cavity, and a buckle is provided on the inner wall of the inner cavity. The coil spring is accommodated in the inner cavity and one end is clamped and fixed in the buckle.

9. The charger according to claim 1, characterized in that: Matching limiting holes and limiting members are provided on the shell and the winding post. When the limiting member is inserted into the limiting hole, the winding post is fixed relative to the shell.

10. The charger according to claim 1, characterized in that: At least two groups of vents are also provided on the shell; wherein the at least two groups of vents include a first vent and a second vent, the first vent is located on the side wall of the shell, and the second vent is located at the bottom of the shell.

11. The charger according to claim 10, characterized in that: A ventilation duct is also provided in the shell, two ends of the ventilation duct are respectively connected with the first ventilation port and the second ventilation port, and the control panel is at least partially located in the ventilation duct.

12. The charger according to claim 10, characterized in that: The charger further includes a fan, which is installed in the wall of the shell or in the accommodating cavity, and is arranged opposite to the first vent.

13. The charger according to claim 12, characterized in that: The housing is also provided with an isolation groove, which is arranged around the periphery of the fan, and is arranged facing the first vent, and the side wall of the isolation groove surrounds the first vent.

14. The charger according to claim 10, characterized in that: An isolation net is arranged at the first vent.

15. A charging system, characterized in that: include: Battery pack; a charger, the charger being electrically connected to the battery pack; Wherein, the charger comprises: A housing having a receiving cavity disposed therein; A control panel is installed in the accommodating cavity; A power cord, one end of which is electrically connected to the control board, and the other end of which extends out of the housing; An output interface, arranged on at least one interface of the housing, and internally electrically connected to the control board; The winding mechanism comprises a winding post and a blocking portion, wherein the winding post is arranged on the housing, and the blocking portion is arranged in cooperation with the winding post to limit the power cord in the axial direction of the winding post.

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