A charging box

Abstract

The utility model relates to charging equipment technical field, especially a kind of charging box.It provides the charging box of the utility model, including box body component, power supply module and function extension module, box body component includes the main box body and cover body being rotationally closed, the accommodating cavity with opening is set in main box body, and power supply module is located in accommodating cavity;Power supply module includes power module, telescopic input line and multiple connection lines, connection line includes series leakage protection switch, double-pole knife switch and socket, and the input end of part leakage protection switch is electrically connected with the output end of telescopic input line by power module;The input end of part leakage protection switch is electrically connected with the output end of telescopic input line;The side of cover body close to main box body is provided with storage groove, and at least part function extension module is detachably mounted in storage groove.The utility model charging box satisfies multiple charging demand and function extension demand, improves the practicality and applicability of charging box.

Description

Technical Field

[0001] This utility model relates to the technical field of charging equipment, and in particular to a charging box. Background Technology

[0002] In the field of power maintenance, maintenance sites usually require corresponding equipment for power supply; however, power maintenance sites often face various complex situations, and the current power supply equipment has too limited functionality and is difficult to provide support functions that can adapt to multiple scenarios. Utility Model Content

[0003] To address the technical problem of existing charging devices having overly limited functionality, this utility model provides a charging box.

[0004] The present invention provides a charging box that solves the technical problem by including a box assembly, a power supply module, and a function expansion module. The box assembly includes a main box and a cover that are rotatably closed. The main box has an open receiving cavity, and the power supply module is located in the receiving cavity. The power supply module includes a power module, a retractable input line, and multiple connecting lines. The connecting lines include a series-connected leakage current protection switch, a double-pole knife switch, and a socket. The input terminals of some of the leakage current protection switches are electrically connected to the output terminals of the retractable input line through the power module. The input terminals of some of the leakage current protection switches are electrically connected to the output terminals of the retractable input line. The cover has a storage slot on the side near the main box, and at least some of the function expansion modules are detachably installed in the storage slot.

[0005] Preferably, a support assembly is provided at the opening of the receiving cavity, the support assembly isolating the receiving cavity from the first chamber and the supporting platform; the retractable input line is located in the first chamber, and the connecting line is located on the supporting platform; when the cover is in the unfolded state, the connecting line is exposed through the opening.

[0006] Preferably, the support assembly includes a first support, a second support, and a spacer. The first support and the second support have a higher rigidity than the spacer. The first support is disposed opposite to the bottom wall of the receiving cavity, and the second support is disposed opposite to the inner side wall of the receiving cavity. The first support and the second support are disposed at an angle. The spacer is located between the first support and the bottom wall of the receiving cavity. The side of the first support facing away from the bottom wall is a bearing platform. The spacer, the second support, and a portion of the inner surface of the receiving cavity jointly define the first chamber. The second support and a portion of the inner surface of the receiving cavity jointly define the second chamber. The power module is installed in the second chamber.

[0007] Preferably, the retractable input cable includes a housing and a take-up cable wound inside the housing. The housing is fixed to one side of the first chamber, and a receiving space is provided on the other side of the first chamber.

[0008] Preferably, the cover is provided with a foam layer, and the storage groove is provided on the foam layer; a first storage groove is provided on the side of the foam layer away from the main body, and the functional expansion module includes a flashlight; a first light-emitting position is provided at the end of the flashlight, and a second light-emitting position is provided on the circumferential outer surface of the flashlight; when the flashlight is detachably installed on the first storage groove, the second light-emitting position is exposed.

[0009] Preferably, the foam layer is provided with a second storage groove, the functional expansion module includes an adapter cable, the adapter cable is detachably disposed in the second storage groove, the input end of the retractable input cable is provided with an adapter interface, the first end of the adapter cable is detachably connected to the adapter interface, and the second end of the adapter cable is a triangular connector, a U-shaped plug connector or a circuit breaker plug connector.

[0010] Preferably, the side of the main housing away from the cover is defined as the placement surface, and multiple support feet are arranged in an array on the placement surface; the side adjacent to one of the openings on the main housing is defined as the first outer side surface, and a wheel is provided on the first outer side surface; the side of the main housing away from the first outer side surface is defined as the second outer side surface, and the side adjacent to the placement surface and the first outer side surface is defined as the third outer side surface, and a telescopic pull rod is provided on the third outer side surface.

[0011] Preferably, the second outer side is further provided with an opening and closing cover, which closes or exposes the second chamber.

[0012] Preferably, the first outer side and the second outer side are respectively provided with folding handles, and the folding handles are arranged to avoid the opening and closing cover.

[0013] Preferably, the charging box further includes a display module, which is disposed on the bracket assembly and electrically connected to the power supply module, for displaying power consumption, voltage and / or power.

[0014] Compared with the prior art, the present invention provides a charging box with the following advantages:

[0015] 1. The charging box provided in this embodiment of the utility model, by setting a power supply module and a function expansion module, meets various charging and function expansion needs, improving the practicality and applicability of the charging box; at the same time, the receiving cavity and storage slot on the main body and the cover provide storage support for the multi-functional expansion scheme, comprehensively improving the portability and scene adaptability of the charging box; specifically, the main body and the cover can be rotated to open and close the charging box, which is convenient to adapt to both working and outdoor transportation states; the receiving cavity provides a safe and stable placement space for the power supply module, preventing it from being interfered with and damaged by the external environment; the power supply module includes a power module, a retractable input cable, and connecting lines. Working collaboratively, the retractable input cable allows for easy adjustment of the power supply location and length. When there is no mains power inlet at the maintenance site and power cannot be accessed via the retractable input cable, the built-in power module can provide emergency power to some connected lines. The series connection of the leakage protection switch, double-pole knife switch, and socket enables individual leakage protection, single-circuit on / off control, and a charging interface for external devices for each connected line, complying with the power industry's "one machine, one switch, one protection" operating standard to significantly reduce the risk of electric shock and short circuits. The function expansion module can be detachably installed in the storage slot of the cover, making it convenient to replace or add function modules according to different usage scenarios.

[0016] 2. In the charging box of this embodiment, the bracket assembly isolates the first chamber and the support platform at the opening of the receiving cavity, allowing for a reasonable partitioned layout of the retractable input cable and connecting lines. The retractable input cable is located in the first chamber to avoid interference with other components during use, while the connecting lines are on the support platform, allowing for easy exposure and connection to external devices when the cover is opened. This design optimizes the internal structural layout of the charging box, improves the convenience of use, and ensures that all components are distributed in an orderly manner, facilitating operation and maintenance.

[0017] 3. In the charging box of this embodiment, the support assembly, composed of a first bracket, a second bracket, and a partition plate, forms different chambers through different arrangement methods. The difference in hardness ensures that the support assembly has sufficient strength to support each component. The first bracket carries the connecting lines, while the second bracket and the partition plate define the first and second chambers, providing suitable installation space for the retractable input line and the power module, respectively, ensuring the stability of the installation of each component. The power module is independently placed in the second chamber, which can reduce electromagnetic interference and facilitate individual maintenance. Among them, the first and second brackets play the main load-bearing functions. Setting the first and second brackets at an angle can improve the structural stability of the support assembly. The partition plate can be made of a material with lower hardness, thereby reducing costs. Further refining the internal structure enhances the structural stability of the charging box, ensures the normal operation of each functional module, and improves the reliability of the charging box.

[0018] 4. In the charging box of this utility model embodiment, the shell of the retractable input cable is fixed to one side of the first chamber, ensuring its installation stability. The take-up cable, which is rolled up in the shell, can be stretched as needed. The receiving space on the other side of the first chamber can be used to store some functional expansion modules, or to temporarily place the excess part of the stretched take-up cable. This facilitates the use of the retractable input cable and enhances the storage capacity of the charging box.

[0019] 5. In the charging box of this utility model embodiment, the foam layer on the cover has a buffering and protective function to prevent damage to the internal components when the cover is closed; the storage slot is set on the foam layer to facilitate the installation of the function expansion module; the lighting flashlight, as a function expansion module, has light-emitting positions on its end and circumferential outer surface that can provide multi-angle lighting in different scenarios, and can be installed on the first storage slot to provide lighting when using the power supply module through the second light-emitting position, or can be used as a flashlight on its own to meet different lighting needs.

[0020] 6. In the charging case of this embodiment, the second storage slot on the foam layer is used to place the adapter cable for easy storage and retrieval; the adapter cable is detachably connected to the adapter interface at the input end of the retractable input cable, and its second end has multiple connector types to adapt to different types of power interfaces, improving the compatibility of the charging case with external power connections. This design enhances the universality of the charging case with different power connections, facilitating power acquisition in various complex scenarios and further improving the practicality of the charging case.

[0021] 7. In the charging box of this embodiment, the support feet on the main body placement surface make the charging box more stable and prevent it from shaking on uneven ground. Since power maintenance is mostly located outdoors in harsh environments, the support feet can prevent wear and tear on the outer wall of the charging box. The rotating wheels on the first outer side and the telescopic pull rod on the second outer side work together to facilitate the movement of the charging box, improving its portability. The array of multiple support feet ensures uniform support and stability. This design improves the ease of movement and placement stability of the charging box, making it easier to transfer and use in different locations, thus expanding its application range.

[0022] 8. In the charging box of this utility model embodiment, the opening and closing cover on the second outer side can close or expose the second chamber, which facilitates the use, maintenance or replacement of the power module in the second chamber. At the same time, when no operation is required, the closed opening and closing cover can protect the power module from the influence of the external environment.

[0023] 9. In the charging box of this utility model embodiment, the folding handles on the first outer side and the second outer side facilitate the user's movement of the charging box, avoid the opening and closing cover, prevent accidental contact with the opening and closing cover during transportation, and also avoid hindering the opening and closing of the opening and closing cover, thus ensuring the safety and convenience of use.

[0024] 10. In the charging box of this embodiment, the display module is electrically connected to the power supply module, displaying the power consumption, voltage, and / or power in real time. This allows users to intuitively understand the power consumption and operating status of the charging box, facilitating reasonable power allocation and timely detection of abnormalities. This design enhances the intelligence of the charging box, provides users with more information, facilitates monitoring and management of the charging process, and improves the safety and reliability of its use. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a structural schematic diagram of a charging box provided in an embodiment of the present utility model.

[0027] Figure 2 This is a top view of a portion of a charging box in its placement state, provided in an embodiment of this utility model.

[0028] Figure 3 This is a structural schematic diagram of a charging box portion provided in an embodiment of the present utility model.

[0029] Figure 4 This is a schematic diagram of the structure of a support assembly in a charging box provided by an embodiment of the present utility model.

[0030] Figure 5 This is an exploded view of a bracket assembly in a charging box provided by an embodiment of the present invention.

[0031] Figure 6 This is a side view of a charging box provided in an embodiment of the present utility model.

[0032] Figure 7 This is a front view of a charging box provided in an embodiment of this utility model.

[0033] Figure 8 This is a schematic diagram of the structure of a lighting flashlight in a charging box provided by an embodiment of this utility model.

[0034] Explanation of reference numerals in the attached diagram:

[0035] 100. Charging box;

[0036] 1. Box assembly; 11. Main box; 111. Receiving cavity; 12. Lid; 121. Foam layer; 122. First storage slot; 123. Second storage slot; 124. Third storage slot; 125. Fourth storage slot; 13. Placement surface; 131. Support feet; 14. First outer side; 141. Casters; 15. Second outer side; 151. Opening / closing lid; 152. Folding handle; 16. Third outer side; 161. Telescopic pull rod; 17. Grounding nail;

[0037] 2. Power supply module; 21. Power module; 22. Retractable input cable; 221. Housing; 222. Power supply cable; 23. Connecting wiring; 231. Residual current circuit breaker; 232. Double-pole knife switch; 233. Socket; 24. Main switch;

[0038] 3. Support assembly; 31. First support; 311. Bearing platform; 3111. First bearing surface; 3112. Second bearing surface; 3113. Third bearing surface; 32. Second support; 33. Spare plate;

[0039] 4. First chamber; 41. Reception space; 5. Second chamber; 6. Lighting flashlight; 61. First light-emitting position; 62. Second light-emitting position; 7. Display module. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0041] It should be noted that the terms "first" and "second" in the specification and claims of this utility model are used to distinguish different objects, rather than to describe a specific order.

[0042] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0043] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0044] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0045] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0046] Please combine Figure 1 and Figure 2 The first embodiment of this utility model provides a charging box 100, including a box assembly 1, a power supply module 2, and a function expansion module. The box assembly 1 includes a main box 11 and a cover 12 that are rotatably closed. The main box 11 has an opening receiving cavity 111, and the power supply module 2 is located in the receiving cavity 111. The power supply module 2 includes a power module 21, a retractable input line 22, and multiple connection lines 23. The connection lines 23 include a leakage current protection switch 231, a double-pole knife switch 232, and a socket 233 connected in series. The input terminals of some leakage current protection switches 231 are electrically connected to the output terminals of the retractable input line 22 through the power module 21. The input terminals of some leakage current protection switches 231 are electrically connected to the output terminals of the retractable input line 22. The cover 12 has a storage groove on the side near the main box 11, and at least some function expansion modules are detachably installed in the storage groove.

[0047] Understandably, the charging box 100 provided in this embodiment of the utility model, by setting a power supply module 2 and a function expansion module, meets various charging and function expansion needs, thereby improving the practicality and applicability of the charging box 100. Simultaneously, the accommodating cavity 111 and storage slot on the main body 11 and the cover 12 provide storage support for multi-functional expansion solutions, comprehensively improving the portability and scenario adaptability of the charging box 100. Specifically, the main body 11 and the cover 12 can be rotated to open and close the charging box 100, conveniently adapting to both work and outdoor transportation states. The accommodating cavity 111 provides a safe and stable placement space for the power supply module 2, preventing it from being interfered with or damaged by the external environment. The power supply module 2 includes a power module 21 and a retractable input cable 2. Working in conjunction with the connecting line 23, the retractable input line 22 allows for easy adjustment of the power supply position and length. When there is no mains power inlet at the maintenance site and power cannot be supplied through the retractable input line 22, the built-in power module 21 can provide emergency power to some of the connecting lines 23. The connecting line 23, consisting of the leakage protection switch 231, the double-pole knife switch 232, and the socket 233 connected in series, can provide individual leakage protection, single-circuit on / off control, and a charging interface for external devices for each connecting line 23. This meets the power industry's "one machine, one switch, one protection" operating standard, significantly reducing the risk of electric shock and short circuit. The function expansion module can be detachably installed in the storage slot of the cover 12, making it convenient to replace or add function modules according to different usage scenarios.

[0048] In one implementation, the main body 11 and the cover 12 are connected by a detachable metal hinge, which supports free opening and closing from 0 to 135°. When closed, the cover 12 and the opening of the main body 11 form a seal.

[0049] In one implementation, the opening is located on the side with the largest area of ​​the main housing 11. Understandably, since the power supply module 2 is located inside the receiving cavity 111, this design can provide the largest possible operating interaction area for arranging the power supply module after the cover 12 is opened.

[0050] In one implementation, power module 21 is an uninterruptible power supply (UPS). When the mains input is normal, the UPS stabilizes the mains voltage and supplies it to the load. At this time, the UPS acts as an AC voltage regulator and also charges its internal battery. When the mains power is interrupted, the UPS immediately switches from the battery's DC power to the load via an inverter, continuing to supply 220V AC power to maintain normal operation of the load and protecting its hardware and software from damage. UPS devices typically provide protection against both overvoltage and undervoltage.

[0051] In one implementation, the power supply module 2 includes three connection lines 23. The input terminal of the leakage protection switch 231 of one of the connection lines 23 is electrically connected to the output terminal of the retractable input line 22 through the power supply module 21. The input terminals of the leakage protection switches 231 of the other two connection lines 23 are directly electrically connected to the output terminal of the retractable input line 22.

[0052] When the power module 21 is in the startup state, it supplies power to the connected line 23, or the retractable data cable 22, when connected to mains power, charges the power module 21 and supplies power to the corresponding connected line 23. When the power module 21 is in the shutdown state, the connected line 23 cannot supply power to the outside. The connected line 23 not connected to the power module 21 can only receive power from the outside through the retractable data cable 22 connected to mains power.

[0053] Understandably, in this embodiment, the power module is connected to only one connection line. This line is specifically adapted to core equipment in emergency scenarios (such as emergency lighting, communication base stations, monitoring instruments, etc.), avoiding power consumption dispersion caused by multiple lines. Centralized power supply improves the stability of single-line output and avoids voltage fluctuations caused by multiple devices connected in parallel, making it particularly suitable for precision instruments sensitive to power quality. At the same time, the power module is equipped with an independent start / stop switch, which is turned on only when needed, avoiding standby power consumption in the traditional always-on mode.

[0054] In one implementation, the power supply module 2 also includes a main switch 24, which is used to control the start and stop of the entire power supply module 2. When the main switch 24 is closed, even if the double-pole knife switch 232 in the connection line 23 is closed, power cannot be supplied. When the main switch 24 is open, the connection line 23 can work normally.

[0055] Please continue reading. Figure 2 In one embodiment, the charging box 100 also includes a display module 7, which is mounted on the bracket assembly 3 and electrically connected to the power supply module 2, for displaying power consumption, voltage and / or power.

[0056] Understandably, the display module 7 is electrically connected to the power supply module 2, displaying real-time power consumption, voltage, and / or power, allowing users to intuitively understand the power consumption and operating status of the charging box 100, facilitating reasonable power allocation and timely detection of abnormalities. This design enhances the intelligence of the charging box 100, providing users with more information, facilitating monitoring and management of the charging process, and improving safety and reliability.

[0057] Please see Figure 3In one embodiment, a support assembly 3 is provided at the opening of the receiving cavity 111, which isolates the receiving cavity 111 from the first chamber 4 and the support platform 311; the retractable input line 22 is located in the first chamber 4, and the connecting line 23 is located on the support platform 311; when the cover 12 is in the unfolded state, the connecting line 23 is exposed through the opening.

[0058] Understandably, the bracket assembly 3 isolates the first chamber 4 and the support platform 311 at the opening of the receiving cavity 111, allowing for a reasonable partitioned layout of the retractable input cable 22 and the connecting cable 23. The retractable input cable 22 is located in the first chamber 4 to avoid interference with other components during use, while the connecting cable 23 is on the support platform 311, allowing for easy exposure and connection to external devices when the cover 12 is unfolded. This design optimizes the internal structural layout of the charging box 100, improves the ease of use of the charging box 100, and ensures that the components are distributed in an orderly manner, facilitating operation and maintenance.

[0059] Please combine Figure 4 and Figure 5 In one embodiment, the support assembly 3 includes a first support 31, a second support 32, and a spacer 33. The first support 31 and the second support 32 have a higher hardness than the spacer 33. The first support 31 is disposed opposite to the bottom wall of the receiving cavity 111, and the second support 32 is disposed opposite to the inner side wall of the receiving cavity 111. The first support 31 and the second support 32 are disposed at an angle. The spacer 33 is located between the first support 31 and the bottom wall of the receiving cavity 111. The side of the first support 31 facing away from the bottom wall is a bearing platform 311. The spacer 33, the second support 32, and part of the inner surface of the receiving cavity 111 jointly define the first chamber 4. The second support 32 and part of the inner surface of the receiving cavity 111 jointly define the second chamber 5. The power module 21 is installed in the second chamber 5.

[0060] Understandably, the support assembly 3, composed of the first bracket 31, the second bracket 32, and the partition plate 33, forms different chambers through different arrangements. The difference in hardness ensures that the support assembly 3 has sufficient strength to support each component. The first bracket 31 carries the connecting line 23, while the second bracket 32 ​​and the partition plate 33 define the first chamber 4 and the second chamber 5, providing suitable installation space for the retractable input line 22 and the power module 21, respectively, ensuring the stability of the installation of each component. The power module 21 is independently placed in the second chamber 5, which can reduce electromagnetic interference and facilitate individual maintenance. Among them, the first bracket 31 and the second bracket 32 ​​play the main load-bearing role. Setting the first bracket 31 and the second bracket 32 ​​at an angle can improve the structural stability of the support assembly 3. The partition plate 33 can be made of a material with lower hardness, thereby reducing costs. Further refining the internal structure enhances the structural stability of the charging box 100, ensures the normal operation of each functional module, and improves the reliability of the charging box 100.

[0061] In one embodiment, the first bracket 31 and the second bracket 32 ​​are sheet metal parts, and the partition plate 33 is a plastic plate, a wooden plate, or an acrylic plate; the first bracket 31 and the second bracket 32 ​​are snapped together, and the edges of both are riveted to the inner wall of the receiving cavity 111; the partition plate 33 is snapped together with the first bracket 31 or connected by a threaded part.

[0062] Understandably, sheet metal parts have high mechanical strength and resistance to deformation, and can withstand the weight of the connecting line 23 and external forces during operation, ensuring the stability of the bearing platform 311 and the chamber structure, and avoiding poor contact of the line or detachment of parts due to deformation of the bracket; non-metallic materials are cheaper than sheet metal parts, and are especially suitable for cost control during mass production. Plastic or acrylic sheets are lightweight, which can reduce the overall weight of the charging box 100, while also having insulation properties.

[0063] In one embodiment, the receiving cavity 111 is square-shaped; the first support 31 and the second support 32 are arranged vertically, the first support 31 and the second support 32 are snapped together, and the outer edge portion of the first support 31 and the second support 32 is fixedly connected to the main housing 11.

[0064] Understandably, the vertical structure enables the support assembly 3 to form an "L-shaped" or "cross-shaped" support frame. The first support 31 bears the horizontal load, and the second support 32 bears the vertical load. The two support each other, enhancing the overall mechanical stability of the support assembly 3 and preventing deformation or loosening caused by excessive force on one side.

[0065] In one implementation, the volume of the first chamber 4 is larger than the volume of the second chamber 5. The area of ​​the support platform 311 corresponds to the top surface area of ​​the first chamber. The top surface of the power module 21 located in the second chamber 5 is exposed outside the second chamber, and the control button of the power module 21 is located on its exposed side.

[0066] Understandably, the first chamber 4 is used to accommodate the retractable input cable 22. The larger volume of the first chamber 4 allows for the configuration of a longer retractable power cable 22, which is suitable for scenarios where the power interface is far away, thereby improving the environmental adaptability of the charging box 100. The supporting platform 311 serves as the main function of the first bracket 31, and its area is consistent with the top surface of the first chamber 4, forming an integrated structure of "supporting the cable on top and separating the chamber below". For example, the supporting platform can completely cover the top opening of the first chamber 4, preventing components connecting the cable 23 from falling into the first chamber, while providing a flat and stable mounting base for the cable 23.

[0067] As one implementation, the exposed top surface of the power module 21 is also equipped with an indicator light to visually display the power level or operating status.

[0068] In one embodiment, the first bracket 31 includes a first bearing surface 3111, a second bearing surface 3112, and a third bearing surface 3113 connected in sequence, with the distances between the first bearing surface 3111, the second bearing surface 3112, and the third bearing surface 3113 and the opening of the receiving cavity 111 gradually decreasing; the leakage protection switch 231 is installed on the first bearing surface 3111, the double-pole knife switch 232 is installed on the second bearing surface 3112, and the socket 233 is installed on the third bearing surface 3113.

[0069] Understandably, the width and depth of each bearing surface can be customized according to the size of the component. For example, the residual current circuit breaker 231 has a larger height and therefore requires a larger installation height, while the socket 233 itself is smaller and requires less installation space, which helps to improve space adaptability. At the same time, this design allows the working ends of the residual current circuit breaker 231, the double-pole knife switch 232 and the socket 233 to be at roughly the same height.

[0070] In one embodiment, the retractable input cable 22 includes a housing 221 and a take-up cable 222 wound inside the housing 221. The housing 221 is fixed to one side inside the first chamber 4, and a receiving space 41 is provided on the other side inside the first chamber 4.

[0071] Understandably, the housing 221 of the retractable input cable 22 is fixed inside one side of the first chamber 4, ensuring its installation stability. The cable 222, which is rolled up inside the housing 221, can be stretched as needed. The receiving space 41 on the other side of the first chamber 4 can be used to store some functional expansion modules, or to temporarily place the excess part of the stretched cable 222. This facilitates the use of the retractable input cable 22 and enhances the storage capacity of the charging box 100.

[0072] It should be noted that power maintenance personnel can freely adjust the extension length of the power take-up cable 222 according to the distance between the power supply box 100 and the on-site power source. When the distance between the power supply box 100 and the on-site power source is long, the retractable power take-up cable 222 can be adapted to power interfaces at greater distances, enhancing its applicability to various maintenance sites. The power take-up cable 222 is housed inside the housing 221, preventing it from being exposed and thus avoiding damage to the insulation layer of the power input line due to bending or wear. It also prevents exposed cables from tripping over power maintenance personnel and from accidentally touching live parts, thereby reducing the risk of short circuits or leakage.

[0073] The retractable cable winding function is existing technology and can be achieved through various winding and snap-fit ​​structures, which will not be elaborated here.

[0074] In one embodiment, the top surface of the housing 221 of the retractable input line 22 is set as a plane, and a receiving space 41 is provided between the top surface of the housing 221 and the partition plate 33.

[0075] Understandably, the top surface of the housing 221 is set as a plane so that the top surface can serve as an effective support surface when storing items in the receiving space 41.

[0076] Please combine Figure 7 and Figure 8 In one embodiment, the cover 12 is provided with a foam layer 121, and a storage groove is provided on the foam layer 121; a first storage groove 122 is provided on the side of the foam layer 121 away from the main box 11, and the functional expansion module includes a lighting flashlight 6; the end of the lighting flashlight 6 is provided with a first light-emitting position 61, and the outer circumferential surface of the lighting flashlight 6 is provided with a second light-emitting position 62. When the lighting flashlight 6 is detachably installed on the first storage groove 122, the second light-emitting position 62 is exposed.

[0077] Understandably, the foam layer 121 on the cover 12 has a cushioning and protective function to prevent damage to internal components when the cover 12 is closed; the storage slot is set on the foam layer 121 to facilitate the installation of the function expansion module; the lighting flashlight 6, as a function expansion module, has light-emitting positions on its end and circumferential outer surface that can provide multi-angle lighting in different scenarios. It can be installed on the first storage slot 122 and exposed through the second light-emitting position 62 to provide lighting when using the power supply module 2, or it can be used as a flashlight on its own to meet different lighting needs.

[0078] Please continue reading. Figure 7 In one embodiment, the foam layer 121 is provided with a second storage groove 123. The functional expansion module includes an adapter cable, which is detachably disposed in the second storage groove 123. The input end of the retractable input cable 22 is provided with an adapter interface. The first end of the adapter cable is detachably connected to the adapter interface. The second end of the adapter cable is a triangular connector, a U-shaped plug connector, or a circuit breaker plug connector.

[0079] Understandably, the second storage slot 123 on the foam layer 121 is used to place the adapter cable for easy storage and retrieval. The adapter cable is detachably connected to the input end of the retractable input cable 22, and its second end has multiple connector types to adapt to different types of power interfaces, improving the compatibility of the charging case 100 with external power sources. This design enhances the universality of the charging case 100 with different power sources, facilitating power access in various complex scenarios and further improving the practicality of the charging case 100.

[0080] Specifically, there are three second storage slots 123, which are placed in parallel, and each slot holds a connector type of adapter cable.

[0081] In one implementation, the foam layer 121 is provided with a third storage slot 124, and the functional expansion module includes an anemometer. Construction personnel can use the configured anemometer to measure the on-site wind force level at any time when working at heights, thereby determining the construction conditions.

[0082] In one implementation, the foam layer 121 is provided with a fourth storage slot 125, and the functional expansion module includes a warning sign. Construction workers can hang the sign outwards during operations to provide warnings and prevent violations.

[0083] Please combine Figure 1 , Figure 6 and Figure 7 In one implementation, the side of the main housing 11 away from the cover 12 is defined as the placement surface 13, and multiple support feet 131 are arranged in an array on the placement surface 13; the side adjacent to an opening on the main housing 11 is defined as the first outer side surface 14, and a wheel 141 is provided on the first outer side surface 14; the side of the main housing 11 away from the first outer side surface 14 is defined as the second outer side surface 15, and a side adjacent to the placement surface 13 and the first outer side surface 14 is defined as the third outer side surface 16, and a telescopic rod 161 is provided on the third outer side surface 16.

[0084] Understandably, the support feet 131 on the placement surface 13 of the main body 11 make the charging box 100 more stable and prevent it from wobbling on uneven ground. Since power maintenance is mostly located outdoors in harsh environments, the support feet 131 can prevent wear and tear on the outer wall of the charging box 100. The wheels 141 on the first outer side 14 and the telescopic rod 161 on the second outer side 15 work together to facilitate the movement of the charging box 100, improving its portability. The array of multiple support feet 131 ensures uniform support and stability. This design improves the mobility and placement stability of the charging box 100, making it easier to move and use in different locations, thus expanding its application range.

[0085] Please see Figure 3 As one implementation method, a grounding pin 17 is provided on the outer surface of the main housing 11. Understandably, this forms a low-impedance grounding path in conjunction with the metal bracket, establishing leakage current through physical grounding to ensure long-term reliability and adaptability to forced grounding scenarios such as power and chemical industries.

[0086] In one implementation, the grounding pin 17 is located on the first outer side 14, that is, the grounding pin 17 and the rotating wheel 141 are located on the same surface. This design makes the grounding pin 17 closer to the ground.

[0087] In one implementation, the grounding pin 17 is detachably connected to the main housing 11. This design facilitates the disassembly and storage of the grounding pin 17 during transportation, and also makes it convenient to replace and maintain the grounding pin 17.

[0088] Specifically, the grounding nail 17 includes a body and a ground wire connected to the body, and the ground wire is installed on the first outer surface 14 by a wing nut.

[0089] Specifically, the ground wire passes through the main enclosure 11 and the bracket assembly 3 to ensure a complete grounding connection.

[0090] Please see Figure 6 As one implementation, the second outer side 15 is also provided with an opening and closing cover 151, which closes or exposes the second chamber 5.

[0091] Understandably, the opening and closing cover 151 on the second outer side 15 can close or expose the second chamber 5, which facilitates the use, maintenance or replacement of the power module 21 in the second chamber 5. At the same time, when no operation is required, the closed opening and closing cover 151 can protect the power module 21 from the influence of the external environment.

[0092] In one embodiment, a folding handle 152 is provided on the first outer side 14 and the second outer side 15 respectively, and the folding handle 152 is positioned to avoid the opening and closing cover 151.

[0093] Understandably, the folding handles 152 on the first outer side 14 and the second outer side 15 make it convenient for users to move the charging box 100, avoid the opening and closing cover 151, prevent accidental contact with the opening and closing cover 151 during transportation, and also prevent obstruction of the opening and closing of the opening and closing cover 151, thus ensuring the safety and convenience of use.

[0094] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A charging box, characterized in that: The device includes a housing assembly, a power supply module, and a function expansion module. The housing assembly includes a main housing and a cover that are rotatably closed. The main housing has an open receiving cavity, and the power supply module is located in the receiving cavity. The power supply module includes a power module, a retractable input line, and multiple connection lines. The connection lines include a series-connected residual current device (RCD), a double-pole switch, and a socket. The input terminals of some RCDs are electrically connected to the output terminals of the retractable input line through the power module; the input terminals of some RCDs are electrically connected to the output terminals of the retractable input line. The cover has a storage slot on the side near the main body, and at least some of the functional expansion modules are detachably installed in the storage slot.

2. The charging box as described in claim 1, characterized in that: A support assembly is provided at the opening of the receiving cavity, and the support assembly isolates the receiving cavity from the first chamber and the supporting platform; The retractable input line is located in the first cavity, and the connecting line is located on the supporting platform; when the cover is in the unfolded state, the connecting line is exposed through the opening.

3. The charging box as described in claim 2, characterized in that: The support assembly includes a first support, a second support, and a spacer. The first support and the second support have a higher rigidity than the spacer. The first support is disposed opposite to the bottom wall of the receiving cavity, and the second support is disposed opposite to the inner side wall of the receiving cavity. The first support and the second support are disposed at an angle. The spacer is located between the first support and the bottom wall of the receiving cavity. The side of the first support facing away from the bottom wall is a bearing platform. The spacer, the second support, and a portion of the inner surface of the receiving cavity jointly define the first chamber. The second support and a portion of the inner surface of the receiving cavity jointly define the second chamber. The power module is installed in the second chamber.

4. The charging box as described in claim 3, characterized in that: The retractable input cable includes a housing and a take-up cable wound inside the housing. The housing is fixed to one side of the first chamber, and a receiving space is provided on the other side of the first chamber.

5. The charging box as described in claim 1, characterized in that: The cover is provided with a foam layer, and the storage slot is provided on the foam layer; a first storage slot is provided on the side of the foam layer away from the main body; the functional expansion module includes a flashlight; a first light-emitting position is provided at the end of the flashlight, and a second light-emitting position is provided on the circumferential outer surface of the flashlight; when the flashlight is detachably installed on the first storage slot, the second light-emitting position is exposed.

6. The charging box as described in claim 5, characterized in that: The foam layer is provided with a second storage groove. The functional expansion module includes an adapter cable, which is detachably disposed in the second storage groove. The input end of the retractable input cable is provided with an adapter interface. The first end of the adapter cable is detachably connected to the adapter interface. The second end of the adapter cable is a triangular connector, a U-shaped plug connector, or a circuit breaker plug connector.

7. The charging box as described in claim 3, characterized in that: The side of the main housing away from the cover is defined as the placement surface, and multiple support feet are arranged in an array on the placement surface; the side adjacent to one of the openings on the main housing is defined as the first outer side surface, and a wheel is provided on the first outer side surface; the side of the main housing away from the first outer side surface is defined as the second outer side surface, and the side adjacent to the placement surface and the first outer side surface is defined as the third outer side surface, and a telescopic pull rod is provided on the third outer side surface.

8. The charging box as described in claim 7, characterized in that: The second outer surface is also provided with an opening and closing cover, which closes or exposes the second chamber.

9. The charging box as described in claim 8, characterized in that: Folding handles are provided on the first outer side and the second outer side respectively, and the folding handles are positioned to avoid the opening and closing cover.

10. The charging box as described in claim 2, characterized in that: The charging box also includes a display module, which is mounted on the bracket assembly and electrically connected to the power supply module, for displaying power consumption, voltage and / or power.

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