Disconnecting link box

Abstract

The utility model relates to a disconnecting link box which is installed on a charging pile, and the disconnecting link box comprises a box body which is provided with an accommodation space and a wiring channel communicated with the accommodation space; the wire fixing structure is arranged on the outer side wall of the box body; the switch unit is arranged in the containing space, the switch unit is provided with a cable, and the cable penetrates out of the containing space through the wiring channel and extends out of the box body; the cable penetrates through the cable fixing structure, so that the cable is fixed by the cable fixing structure; the mounting structure comprises at least two mounting pieces; the installation parts are adjustably installed on the outer side wall of the box body so that the distance between the two installation parts can be adjusted. Through collaborative design of the box body, the wire fixing structure, the switch unit and the mounting structure, safety protection of the charging pile is realized, and especially a reliable disconnection function in a high-voltage maintenance scene is realized. Through the adjustable installation structure, the installation environment and requirements are met, the installation position of the disconnecting link box is not fixed any more, and the adaptability and flexibility of the disconnecting link box to the complex or limited installation environment are greatly enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power equipment, in particular to a knife switch box. BACKGROUND

[0002] As a common manual switch device in power equipment, the core component of the knife switch box is designed with various specifications according to diversified application requirements, and is usually marked with voltage and current values such as 220V and 16A on the product. The knife switch plays a crucial role in the power system, and its main function is to realize the isolation of power supply, especially in the high-voltage maintenance scene, it can reliably disconnect the maintenance equipment from the live equipment, forming a clear disconnection point, thereby effectively ensuring the safety of maintenance personnel. In addition, the knife switch also has the ability to turn on or off the small current circuit, specifically, the disconnector can pull and close the bypass current of the closed circuit switch, showing its flexibility and practicality in the power system.

[0003] With the continuous development of power technology and the in-depth expansion of application scenarios, the design and function of the knife switch box are also constantly optimized and improved. For example, the "CN214615952U" disclosed a kind of anti-theft type charging pile knife switch box, through a series of innovative structure setting, realized the remarkable promotion of the anti-theft and waterproof performance of the knife switch box. Specifically, the knife switch box includes a box body, a safety door is hinged to one side of the box body, a fixing assembly is arranged at one end of the inner side of the box body close to the safety door, a single-chip microcomputer is installed on the inner top wall of the box body, and an inflation assembly is arranged on the side of the single-chip microcomputer close to the safety door. The inflation assembly further includes an inflation valve and a deflation valve. A first groove is formed around the inner wall of the box body and close to the side of the safety door, a gas bag is installed in the inner side of the first groove, and a second groove is formed on the outer surface of the side wall of the safety door corresponding to the position of the gas bag. In actual use, the inflation valve is started to inflate the gas bag, so that the gas bag expands and tightly abuts with the inner wall of the second groove on the safety door, then the motor is started to drive the two fixing blocks to be inserted into the fixing grooves on the inner side of the box body, thereby sealing and locking the knife switch box, effectively improving the anti-theft and waterproof function of the knife switch box.

[0004] However, although the above-mentioned utility model has achieved remarkable results in anti-theft and waterproof, it still has certain limitations in actual application. Specifically, the installation position between the knife switch box and the charging pile is fixed and cannot be adjusted. This design may bring a series of inconvenience in the installation process. When the installation environment is complex or the space is limited, the installer often needs to spend a lot of time and effort to find an installation method that can be adapted, sometimes even have to make compromises, thereby affecting the efficiency and effect of the entire installation project. Therefore, how to improve the flexibility and convenience of the installation of the knife switch box while maintaining its anti-theft and waterproof performance has become a technical problem to be solved. The utility model discloses a content

[0005] The application provides a knife switch box, which can realize flexibility and convenience of installation between the knife switch box and a charging pile.

[0006] The application provides a knife switch box, which is installed to a charging pile, and the knife switch box comprises:

[0007] A box body is provided with a containing space and a wiring channel communicated with the containing space;

[0008] A wire fixing structure is arranged on the outer side wall of the box body;

[0009] A switch unit is arranged in the containing space, the switch unit has a cable, the cable passes out of the containing space through the wiring channel and reaches the outside of the box body, wherein the cable passes through the wire fixing structure, so that the wire fixing structure fixes the cable; and

[0010] An installation structure comprises at least two installation pieces, the two installation pieces are sequentially arranged along the longitudinal direction of the knife switch box, and each installation piece is adjustably installed on the outer side wall of the box body, so that the spacing between the two installation pieces can be adjusted.

[0011] In a possible implementation, the installation piece comprises an adjusting part, a connecting part and a limiting part, the adjusting part is connected with the limiting part through the connecting part, and the limiting part is movably arranged on the box body;

[0012] The adjusting part has an adjusting state and a limiting state;

[0013] When the adjusting part is in the limiting state, the adjusting part is in limiting connection with the box body, so as to limit the movement of the connecting part and the limiting part;

[0014] When the adjusting part is in the adjusting state, the adjusting part is separated from the box body, so that the limiting part and the connecting part move synchronously;

[0015] The knife switch box is connected with the charging pile through the connecting part.

[0016] In a possible implementation, the adjusting part comprises an adjusting shell, an adjusting rod, a limiting plate and an elastic piece, the adjusting shell is provided with a containing cavity, the adjusting rod movably penetrates through the adjusting shell, the limiting plate is arranged in the containing cavity and is fixedly connected with the adjusting rod, the elastic piece is sleeved on the adjusting rod, one end of the elastic piece abuts against the inner wall of the containing cavity, and the other end of the elastic piece abuts against the limiting plate.

[0017] The outer side wall of the box body is provided with a plurality of limiting holes, the plurality of limiting holes are sequentially arranged along the longitudinal direction of the box body, and one end of the adjusting rod is arranged to be inserted into one of the limiting holes.

[0018] In a possible implementation, the limiting part comprises a limiting body and a first limiting sliding block, the first limiting sliding block is connected with the limiting body, and the limiting body is connected with the connecting part.

[0019] The limiting body is connected with the first limiting sliding groove of the box body through the first limiting sliding block.

[0020] In a possible implementation, the fixed wire structure comprises a fixed wire shell and a clamping part, the fixed wire shell is provided with a receiving groove, and the clamping part is arranged in the receiving groove.

[0021] The clamping part has a clamping space, and the clamping space is arranged to clamp the cable.

[0022] In a possible implementation, the clamping part comprises two clamping bodies, the two clamping bodies are symmetrically arranged along the longitudinal direction of the box body, and the clamping space is formed between the two clamping bodies.

[0023] The clamping body is movably arranged in the receiving groove to adjust the size of the clamping space, and each clamping body is provided with an anti-skid pad.

[0024] In a possible implementation, the fixed wire structure comprises two adjusting screws, the two adjusting screws are symmetrically arranged along the longitudinal direction of the box body, so that the adjusting screws correspond to the clamping bodies one by one.

[0025] One end of the adjusting screw is screwed into the fixed wire shell and rotationally connected with the clamping body through the fixed wire shell.

[0026] In a possible implementation, the clamping body is provided with a second limiting sliding block, the inner wall of the receiving groove is provided with a corresponding second limiting sliding groove, and the clamping body is connected with the second limiting sliding groove of the receiving groove through the second limiting sliding block.

[0027] In a possible implementation, the switch unit comprises an insulating back plate, a knife switch, a connecting busbar, a grounding ring, a terminal table and a quick plug interface.

[0028] The insulating back plate is connected with the inner wall of the receiving space, the connecting busbar is connected with the insulating back plate, the grounding ring, the terminal table and the quick plug interface are respectively connected with the connecting busbar, and the knife switch is rotatably installed to the insulating back plate.

[0029] In a possible implementation, the wire channel is arranged close to the upper side of the box body.

[0030] The knife switch box provided by the embodiment of the application realizes the safety protection of the charging pile, especially the reliable disconnection function in the high-voltage maintenance scene, through the cooperative design of the box body, the wire fixing structure, the switch unit and the mounting structure. Meanwhile, the mounting position of the knife switch box is no longer fixed by changing the distance between the two mounting members of the adjustable mounting structure to adapt to the installation environment and requirements, thereby greatly enhancing the adaptability and flexibility of the knife switch box to complex or limited installation environments, reducing the compromises made by the installation personnel to adapt to the fixed installation position, and thereby improving the efficiency and effect of the installation project. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate the embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below. Obviously, for one of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor. One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings, and these exemplary illustrations do not constitute a limitation on the embodiments. The elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified. The drawings do not constitute a proportional limitation.

[0032] Figure 1 The structural schematic diagram of the knife switch box provided by the embodiment of the application is shown in the figure;

[0033] Figure 2 Another structural schematic diagram of the knife switch box provided by the embodiment of the application is shown in the figure;

[0034] Figure 3 The structural schematic diagram of the mounting member provided by the embodiment of the application is shown in the figure; Figure 2 The enlarged schematic diagram of A shown in the figure;

[0035] Figure 4 The structural schematic diagram of the wire fixing structure provided by the embodiment of the application is shown in the figure;

[0036] Figure 5 The structural schematic diagram of the wire fixing structure provided by the embodiment of the application is shown in the figure;

[0037] Figure 6 The structural schematic diagram of the switch unit provided by the embodiment of the application is shown in the figure.

[0038] Explanation of reference numerals:

[0039] 1, box; 11, containing space; 12, wiring channel; 13, body; 14, door body; 15, top cover; 16, limiting hole; 17, first limiting sliding groove;

[0040] 2, wire fixing structure; 21, wire fixing shell; 211, containing groove; 2111, second limiting sliding groove; 212, through screw hole; 22, clamping part; 221, clamping space; 222, clamping body; 223, non-slip pad; 23, adjusting screw;

[0041] 3, switch unit; 31, insulating back plate; 32, knife switch; 33, connecting busbar; 34, grounding ring; 35, terminal table; 36, quick plug interface;

[0042] 4, mounting structure; 41, mounting piece; 411, adjusting part; 4111, adjusting shell; 41111, containing cavity; 41112, through hole; 4112, adjusting rod; 4113, limiting plate; 4114, elastic piece; 412, connecting part; 4121, connecting lug; 4122, connecting hole; 413, limiting part; 4131, limiting body. DETAILED DESCRIPTION

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0044] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplifying the present application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and it does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but a person of ordinary skill in the art can realize the applicability of other processes and / or the use of other materials.

[0045] For ease of description, spatial relative terms can be used herein to describe the relative position relationship or movement condition of one element or feature with respect to another element or feature as shown in the drawings, such as "inner", "outer", "inboard", "outboard", "under", "below", "on", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over or the posture is changed or the movement state is changed, the directional indications will also change accordingly, for example: the element described as "under" or "below" another element or feature will be oriented as "above" or "above" another element or feature. Therefore, the example term "below" can include both up and down positions. The device can be additionally oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein are interpreted accordingly.

[0046] In some example embodiments, as shown in Figures 1-6 A knife switch box is installed to a charging pile (not shown in the drawings) to improve the safety of the charging pile, especially in high-voltage maintenance scenarios, to ensure that the maintenance equipment and live equipment are reliably disconnected, thereby effectively ensuring the safety of maintenance personnel. The knife switch box includes a box body 1, a wire fixing structure 2, a switch unit 3, and a mounting structure 4.

[0047] The box body 1 is provided with a containing space 11 and a wire routing channel 12 communicating with the containing space 11. The containing space 11 is used to contain and protect the switch unit 3, which is isolated from the outside. The wire routing channel 12 is used to realize the routing of the cable (not shown in the drawings) of the switch unit 3, and the cable passes through the wire routing channel 12 from the containing space 11 to the outside of the box body 1, ensuring the neatness and order of the cable layout. The wire routing channel 12 is arranged near the upper side of the box body 1, and when a flood disaster occurs, due to the rising water level, the higher wire routing channel 12 can ensure that the cable is not soaked in water, thereby greatly improving the overall safety of the knife switch box.

[0048] The wire routing channel 12 serves as a channel for the cable, not only guiding the orderly arrangement of the cable, but also protecting the cable. In extreme cases such as floods, the higher wire routing channel 12 can effectively prevent the cable from short-circuiting, leaking, and other dangerous phenomena due to contact with moisture. Through the wire routing channel 12, the cable can be conveniently connected to the switch unit 3. The switch unit 3 is one of the core components in the box body 1, responsible for controlling the on-off of power to ensure that users can quickly restore power in emergency situations.

[0049] For example, the enclosure 1 includes a body 13, a door 14 and a top cover 15. The body 13 has an accommodating space 11 inside. The accommodating space 11 is formed in the body 13. The door 14 is hinged to the body 13 and can open and close the accommodating space 11 to facilitate the maintenance and operation of the switch unit 3.

[0050] The top cover 15 is fastened to the top of the main body 13, and together with the door 14, it seals the accommodating space 11. The top cover 15 is designed to be sloping, with its edge extending beyond the edge of the main body 13, which effectively blocks rainwater and prevents rainwater from dripping directly into the box 1, thus avoiding malfunctions such as moisture damage and short circuits to the internal electrical components caused by rainwater seepage.

[0051] The cable fixing structure 2 is installed on the outer wall of the housing 1 and is used to fix the cable of the switch unit 3. The cable passes through the cable fixing structure 2, which effectively fixes the cable to prevent it from shaking or falling off, and ensures the stability and safety of the cable connection.

[0052] The switch unit 3 is located within the accommodating space 11 and has cables for connecting external equipment. The switch unit 3 is responsible for disconnecting the equipment under maintenance from the live equipment during high-voltage maintenance to ensure the safety of maintenance personnel.

[0053] Mounting structure 4 includes two mounting components 41, which are symmetrical along the longitudinal direction of the switch box (see reference). Figure 2 The Z-axis is shown in the diagram. The knife switch box has longitudinal and depth directions (refer to...). Figure 2 The X-axis (as shown) and the span direction (refer to) Figure 2 The two mounting pieces (shown as Y-axis) are perpendicular to each other. The mounting pieces 41 are adjustablely mounted on the outer wall of the housing 1. By adjusting the position of the mounting pieces 41, the distance between the two mounting pieces 41 can be changed. Adjusting the distance between the two mounting pieces 41 allows the switch box to adapt to the installation requirements of different charging piles, improving the flexibility and convenience of switch box installation.

[0054] It should be noted that the above-mentioned mounting component 41 is not limited to two, but can also be four. The four mounting components 41 can be in pairs, with the two mounting components 41 in the same group located on the same side of the housing 1. The two sets of mounting components 41 are set on two opposite side walls to further improve the stability and flexibility of the switch box and the charging pile.

[0055] The disconnect switch box provided in this embodiment achieves safe protection for charging piles, especially reliable disconnection function in high-voltage maintenance scenarios, through the coordinated design of the box body 1, the wiring structure 2, the switching unit 3, and the mounting structure 4. At the same time, the adjustable mounting structure 4 design improves the flexibility and adaptability of the disconnect switch box installation.

[0056] In this embodiment, as Figures 1-6As shown, the mounting member 41 includes an adjusting part 411, a connecting part 412, and a limiting part 413, which are connected to each other and collectively realize the multifunctionality and flexibility of the mounting member 41.

[0057] The adjusting part 411 has an adjusting state and a limiting state, so that the installer can easily switch the state according to the actual needs, thereby realizing the adjustment or fixation of the position of the mounting member 41.

[0058] The connecting part 412 serves as a bridge between the adjusting part 411 and the limiting part 413, not only transmitting the movement of the adjusting part 411, but also bearing the heavy responsibility of connecting with the charging pile. Its solid structure design ensures the stable connection between the knife switch box and the charging pile.

[0059] Exemplarily, the connecting part 412 includes a connecting lug 4121 and a connecting hole 4122, the connecting lug 4121 is connected with the adjusting part 411 and the limiting part 413 respectively, and the connecting hole 4122 is formed in the connecting lug 4121. A bolt or a screw or the like is selectively passed through the connecting hole 4122 to connect with the charging pile, so as to realize the fixation of the knife switch box and the charging pile. The solid structure and stable performance of the connecting part 412 ensure the firm installation of the knife switch box on the charging pile, which can maintain a stable connection state even in harsh environments.

[0060] The limiting part 413 is movably arranged on the box body 1, and by moving the limiting part 413, the position of the mounting member 41 on the box body 1 can be adjusted to adapt to different installation requirements.

[0061] When the adjusting part 411 is in the limiting state, the adjusting part 411 is in limiting connection with the box body 1, effectively limiting the movement of the connecting part 412 and the limiting part 413. In this state, the position of the mounting member 41 is fixed, and the knife switch box can be stably installed on the charging pile.

[0062] When it is necessary to adjust the position of the mounting member 41, the adjusting part 411 can be switched to the adjusting state. At this time, the adjusting part 411 is separated from the box body 1, so that the limiting part 413 and the connecting part 412 can move synchronously. This design enables the installer to easily adjust the position of the mounting member 41 to adapt to different charging pile installation environments.

[0063] The mounting member 41 in the embodiment realizes flexible adjustment and stable connection of the installation position through the design of the adjusting part 411, the connecting part 412, and the limiting part 413. This design not only improves the flexibility and convenience of the installation of the knife switch box, but also ensures the firm installation and reliable operation of the knife switch box on the charging pile.

[0064] In the embodiment, as Figures 1-6As shown, the adjusting part 411 comprises an adjusting housing 4111, an adjusting rod 4112, a limiting plate 4113 and an elastic member 4114, which cooperate together to realize the adjusting and limiting functions of the adjusting part 411.

[0065] The adjusting housing 4111 is provided with a receiving cavity 41111 for accommodating the adjusting rod 4112, the limiting plate 4113 and the elastic member 4114. The adjusting housing 4111 is provided with two opposite through holes 41112 which are in communication with the receiving cavity 41111 and allow the adjusting rod 4112 to pass through.

[0066] The adjusting rod 4112 movably passes through the adjusting housing 4111, one end of the adjusting rod 4112 passes through one of the through holes 41112, the receiving cavity 41111 and the other through hole 41112 in sequence, so as to be connected to the box body 1 in a limiting manner. For example, the outer side wall of the box body 1 is provided with a plurality of limiting holes 16 which are arranged in sequence along the longitudinal direction of the box body 1, and one end of the adjusting rod 4112 can be inserted into one of the limiting holes 16. By selecting different limiting holes 16, the longitudinal position of the mounting part 41 on the box body 1 can be adjusted.

[0067] The limiting plate 4113 is arranged in the receiving cavity 41111 and is fixedly connected with the adjusting rod 4112. The limiting plate 4113 cooperates with the elastic member 4114 to limit the movement range of the adjusting rod 4112.

[0068] The elastic member 4114 is sleeved on the adjusting rod 4112, one end of the elastic member 4114 abuts against the inner wall of the receiving cavity 41111, and the other end of the elastic member 4114 abuts against the limiting plate 4113. The elastic member 4114 is, for example, a spring which uses its elastic force to keep the adjusting rod 4112 in a normal position, and enables the adjusting rod 4112 to move when an external force acts on it and to return to the original position when the external force disappears.

[0069] When it is necessary to adjust the position of the mounting part 41, an external force acts on the adjusting rod 4112 to make it overcome the elastic force of the elastic member 4114 and move out of the current limiting hole 16.

[0070] Then, the adjusting rod 4112 can be inserted into another suitable limiting hole 16. After the external force is released, the elastic force of the elastic member 4114 tightly abuts the adjusting rod 4112 against the new limiting hole 16, thereby fixing the position of the mounting part 41.

[0071] The adjusting part 411 in the embodiment achieves flexible adjustment and stable fixation of the longitudinal position of the mounting part 41 on the box body 1 through the design of the shell 4111, the adjusting rod 4112, the limiting plate 4113 and the elastic piece 4114. Such a design not only improves the flexibility of the installation of the switch cabinet, but also ensures the firm installation and reliable operation of the switch cabinet on the charging pile.

[0072] In the embodiment, as shown in Figures 1-6 The limiting part 413 includes a limiting body 4131 and a first limiting sliding block (not shown in the figure), and the first limiting sliding block is fixedly connected with the limiting body 4131 to form an integral structure.

[0073] The limiting body 4131 is connected with the connecting part 412, and the connection can be achieved by screwing, bolting, welding or integral molding, so that the two can be firmly connected together. Among them, the size of the limiting body 4131 along the opening direction of the box body 1 is smaller than the size of the connecting part 412, so as to avoid the connecting hole 4122, and ensure that the screw or bolt can normally pass through the connecting hole 4122 and cooperate with the corresponding hole position on the connecting part of the charging pile during the installation process, so as to achieve firm connection.

[0074] The first limiting sliding block is T-shaped, which not only provides good sliding performance, but also ensures stability during sliding. Among them, the box body 1 is provided with a first limiting sliding groove 17, and the shape and size of the first limiting sliding groove 17 are matched with those of the first limiting sliding block.

[0075] During installation, the limiting body 4131 is connected with the first limiting sliding groove 17 of the box body 1 through the first limiting sliding block. Through such a sliding connection, the position of the connecting part 412 in the box body 1 can be conveniently adjusted to meet different installation requirements. Moreover, the T-shaped design can form a limit between the first limiting sliding block and the first limiting sliding groove 17, so as to prevent the first limiting sliding block from separating from the first limiting sliding groove 17 of the box body 1.

[0076] The limiting part 413 in the embodiment realizes the sliding connection with the box body 1, and at the same time ensures that the connecting part 412 can be smoothly connected with the charging pile. Such a design not only improves the flexibility and convenience of installation, but also enhances the stability and reliability of the internal components of the charging pile.

[0077] In the embodiment, as shown in Figures 1-6 The wire fixing structure 2 includes a wire fixing shell 21 and a clamping part 22, and the wire fixing structure 2 provides a firm and stable support structure. The wire fixing shell 21 is provided with a receiving groove 211, and the clamping part 22 is arranged in the receiving groove 211.

[0078] The clamping part 22 has a clamping space 221 which is arranged to clamp and fix the cable and prevent the cable from falling off or loosening during movement or vibration. The shape and size of the clamping space 221 can be adjusted according to the actual diameter and shape of the cable to ensure the tightness and stability of clamping.

[0079] The clamping space 221 is arranged corresponding to the wiring channel 12, and the two together firmly clamp the cable to form a safe and reliable cable management system. In the event of a flood disaster, this system can ensure the stable operation of the cable and reduce power outages caused by cable problems.

[0080] Through the quick emergency power restoration mechanism, the cable is smoothly connected to the switch unit 3 through the wiring channel 12, and the switch is closed to send power when necessary, which can greatly reduce the impact of floods on residential electricity and ensure the basic living needs of residents.

[0081] The high design of the wiring channel 12 and its cooperation with the clamping part 22 and the switch unit 3 together form a system that not only adapts to extreme weather conditions but also ensures the safety of power supply. This design not only improves the safety of the knife switch box in flood disasters, but also effectively reduces the impact of disasters on residential electricity, which has significant social benefits and practical value.

[0082] In this embodiment, as shown in Figures 1-6 The clamping part 22 includes two clamping bodies 222 which are symmetrically arranged along the longitudinal direction of the box body 1 and together form a clamping space 221 between them. The clamping body 222 is, for example, semi-circular to fit the shape of the cable, so that it can better clamp and fix the cable and prevent the cable from falling off during movement or vibration.

[0083] The clamping body 222 is movably arranged in the accommodating groove 211, so that the size of the clamping space 221 can be adjusted to accommodate cables of different diameters.

[0084] First example

[0085] The cable fixing structure 2 includes two adjusting screws 23 which are symmetrically arranged along the longitudinal direction of the box body 1, so that the adjusting screw 23 corresponds to the clamping body 222 one by one.

[0086] One end of the adjusting screw 23 is screwed to the cable fixing shell 21. For example, the cable fixing shell 21 is provided with a through screw hole 212, one end of the adjusting screw 23 is threadedly connected with the through screw hole 212, and the one end of the adjusting screw 23 is rotatably connected with the clamping body 222 through the through screw hole 212 of the cable fixing shell 21. By rotating the adjusting screw 23, the clamping body 222 can be driven to move in the accommodating groove 211, thereby adjusting the size of the clamping space 221.

[0087] Second Example

[0088] The fixed wire structure 2 includes two springs (not shown in the figure), which are arranged symmetrically along the longitudinal direction of the box body 1, so that the springs correspond one-to-one to the clamping bodies 222. One end of the spring is connected with the clamping body 222, and the other end of the spring is connected with the accommodating groove 211. The elastic force of the spring enables the clamping body 222 to closely fit the cable while maintaining a certain clamping force.

[0089] When the diameter of the cable changes or is subjected to external force, the elasticity of the spring can absorb these changes, ensuring that the clamping body 222 always maintains close contact with the cable.

[0090] In this embodiment, the surface of each clamping body 222 is provided with a non-slip pad 223, which is tightly combined with the clamping body 222 by adhesion or other fixing means. The non-slip pad 223 is made of soft rubber material, which has good elasticity and wear resistance. The surface of the non-slip pad 223 is provided with anti-slip lines, which can increase the friction between the clamping body 222 and the cable, ensuring that the cable is more stable during clamping and is not easy to slip or loosen due to external force.

[0091] The clamping part 22 in this embodiment realizes effective clamping and fixing of the cable through its unique structural design. Whether the adjusting screw 23 or the spring is used as the adjusting mechanism, it can flexibly adapt to cables of different diameters and ensure the stability of the cable during clamping. In combination with the design of the non-slip pad 223, the fixing effect of the cable is further improved, and the management and maintenance work of the cable is simplified.

[0092] In this embodiment, as shown in Figures 1-6 The clamping body 222 is provided with a second limiting slide block (not shown in the figure), which is, for example, T-shaped, which is conducive to providing a stable sliding surface and a limiting surface to prevent falling off. For example, the T-shaped slide block has a relatively wide head and a relatively narrow neck or rod, the head is used to provide stable support in the slide groove, and the neck or rod allows the slide block to slide in the slide groove.

[0093] The inner wall of the accommodating groove 211 is provided with a second limiting slide groove 2111 which is complementary in shape to the second limiting slide block, that is, the slide groove is also T-shaped. This complementary design ensures that the slide block can be closely fitted in the slide groove, which not only ensures the smoothness of sliding, but also provides the necessary limiting effect. For example, the second limiting slide block can slide in the second limiting slide groove 2111, allowing the clamping body 222 to move in a specific direction within the accommodating groove 211.

[0094] Due to the T-shaped design of the second limiting sliding block and the second limiting sliding groove 2111, the second limiting sliding block is limited within the second limiting sliding groove 2111 and cannot easily fall off. This design provides additional safety and ensures the stability of the clamping body 222 during movement. This sliding and limiting design makes the movement of the clamping body 222 in the accommodating groove 211 more controllable and stable, suitable for occasions that require precise position adjustment.

[0095] The design of the second limiting sliding block and the second limiting sliding groove 2111 in this embodiment is a practical and reliable connection method that ensures stable movement and effective limiting of the clamping body 222 within the accommodating groove 211, providing strong protection for cable fixation and clamping.

[0096] In this embodiment, as shown in Figures 1-6 The switch unit 3 includes an insulating back plate 31, a knife switch 32, a connecting busbar 33, a grounding ring 34, a terminal table 35, and a quick plug interface 36.

[0097] The insulating back plate 31 serves as the support structure of the switch unit 3, and is connected to the inner wall of the accommodating space 11 to fix and install the switch unit 3 within the accommodating space 11. The insulating back plate 31 is, for example, screwed to the inner wall of the accommodating space 11 to facilitate the installation or removal of the insulating back plate 31. The insulating back plate 31 is, for example, an insulating epoxy glass plate, effectively isolating the electrical connection between the switch unit 3 and the inner wall of the accommodating space 11, improving safety. At the same time, it provides a stable support platform to ensure that other components can be firmly installed thereon.

[0098] The knife switch 32 is rotatably installed to the insulating back plate 31, and is a rotatable switch component for controlling the on-off of the circuit. The knife switch 32 realizes the closing and opening of the circuit by rotating, which is simple and intuitive to operate. Its structure design is reasonable, ensuring good electrical contact and stable mechanical performance.

[0099] The connecting busbar 33 is an electrical connection component inside the switch unit 3, used to connect various electrical elements. The connecting busbar 33 is connected to the insulating back plate 31, providing a stable electrical connection path. It ensures smooth transmission of current and uniformity of distribution through reasonable layout and design.

[0100] The grounding ring 34 is used to realize the grounding protection of the switch unit 3, and is connected to the connecting busbar 33. When the switch unit 3 has a leakage or fault, it can quickly guide the current into the ground to protect the safety of personnel and equipment.

[0101] The terminal table 35 is connected with the connecting busbar 33, and the quick plug interface 36 is connected with the connecting busbar 33, so that the connection and disconnection of the cable are realized in a quick plug manner. This design makes the connection of the cable more convenient and efficient, and improves the work efficiency.

[0102] The knife switch box can be used as a power supply disconnection point, a quick plug access point of a power generation vehicle, a line nose access point of a power generation vehicle, a maintenance grounding rod hanging point and the like, and is in a wall-mounted type. The bottom is a power supply line side, directly connected with the knife switch 32, and connected with the quick plug interface 36 and the terminal table 35 and the grounding ring 34 after the cable is connected, and connected with the opening and closing position of the knife switch 32, so that the power supply is connected and controlled by the knife switch 32. The model of the quick plug interface 36 can be, but is not limited to, PE630S quick plug connector, which can be directly connected with the cable of the power generation vehicle. The terminal table 35 connected with the line nose can be grounded or used for drainage, and a protective cap is provided when it is idle. The grounding ring 34 is installed at the grounding rod position and can only be used for grounding, and a protective cap is provided when it is idle. The knife switch 32 can be, but is not limited to, Delixi-kai HD11-630T / 48B.

[0103] When the line needs to be maintained in the power supply operation, the knife switch 32 in the knife switch box is disconnected, and the cable and the quick plug interface 36 are used for quick connection. When the cable interface is connected with the line nose, the line nose can be directly connected to the terminal table 35 in the knife switch box. The power generation vehicle can be quickly connected after arriving at the site. When the site needs to be powered off for maintenance, the knife switch 32 is pulled out to disconnect the power supply connection, and the grounding rod is hung on the grounding ring 34 for three-phase grounding treatment. After the grounding rod is hung, the related power-off maintenance operation can be directly performed.

[0104] The switch unit 3 of the embodiment is combined by the insulating back plate 31, the knife switch 32, the connecting busbar 33, the grounding ring 34, the terminal table 35 and the quick plug interface 36, so that the overall structure of the switch unit 3 is compact and beautiful. The insulating back plate 31 provides good insulation performance, and the grounding ring 34 realizes grounding protection, ensuring the safety of the switch unit 3. The rotary design of the knife switch 32 makes the operation simple and intuitive, improving the work efficiency. The design of the terminal table 35 and the quick plug interface 36 makes the connection of the external electrical elements or cables more convenient and efficient.

[0105] The installation structure 4 can be used to adjust the installation position of the switch cabinet according to the actual installation environment and requirements, greatly enhancing the adaptability of the switch cabinet to complex or limited installation environments, reducing the compromises made by installation personnel to adapt to fixed installation positions, and improving the efficiency and effectiveness of installation engineering. Electrical engineers can fine-tune the installation position of the switch cabinet according to the actual situation, thereby optimizing the layout of the entire electrical system. This flexibility not only improves the aesthetics of the system, but also helps to reduce the length and complexity of the cables, reducing system losses and costs.

[0106] The clamping portion 22 can ensure that the cable is more stable when connected to the switch cabinet and is not easily detached due to external forces. This stable connection greatly enhances the stability of the electrical connection, helping to reduce electrical failures caused by poor connection or detachment, and improving the reliability of the electrical system.

[0107] Stable cable connection can effectively prevent the wire from falling off, thereby reducing the safety risk caused by loose or poor contact of the wire, protecting the safety of the operator. At the same time, reducing the mechanical stress on the cable due to detachment helps to prolong the service life of the cable, further improving the safety of the system.

[0108] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are to be construed as open-ended and therefore intended to mean that respective features, steps, operations, elements and / or components are present, but not excluding the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.

[0109] Although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be used only to distinguish one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms are used herein without implying a sequence or order. Therefore, the first element, component, region, layer or section discussed below can be referred to as a second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0110] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described in this application. The description was only made in order to fully achieve and convey the scope of the application.

Claims

1. A knife switch box installed to a charging pile, characterized in that, The switch cabinet comprises: a cabinet body provided with a receiving space and a wire passage communicating with the receiving space; a wire fixing structure arranged on the outer side wall of the cabinet body; a switch unit arranged in the receiving space, the switch unit having a cable which is led out of the receiving space through the wire passage and to the outside of the cabinet body, wherein the cable is fixed by the wire fixing structure; and a mounting structure comprising at least two mounting members arranged in sequence along the longitudinal direction of the switch cabinet, and each mounting member is adjustably mounted on the outer side wall of the cabinet body to adjust the distance between the two mounting members.

2. The knife switch box according to claim 1, characterized in that The mounting member comprises an adjusting part, a connecting part and a limiting part, the adjusting part is connected with the limiting part through the connecting part, and the limiting part is movably arranged on the cabinet body; wherein the adjusting part has an adjusting state and a limiting state; when the adjusting part is in the limiting state, the adjusting part is in limiting connection with the cabinet body to limit the movement of the connecting part and the limiting part; when the adjusting part is in the adjusting state, the adjusting part is separated from the cabinet body, so that the limiting part and the connecting part move synchronously; the switch cabinet is connected with the charging pile through the connecting part.

3. The knife switch box according to claim 2, characterized in that The adjusting part comprises an adjusting shell, an adjusting rod, a limiting plate and an elastic member, the adjusting shell is provided with a receiving cavity, the adjusting rod movably penetrates through the adjusting shell, the limiting plate is arranged in the receiving cavity and is fixedly connected with the adjusting rod, the elastic member is sleeved on the adjusting rod, one end of the elastic member abuts against the inner wall of the receiving cavity, and the other end of the elastic member abuts against the limiting plate; wherein the outer side wall of the cabinet body is provided with a plurality of limiting holes, the plurality of limiting holes are arranged in sequence along the longitudinal direction of the cabinet body, and one end of the adjusting rod is arranged to be inserted into one of the limiting holes.

4. The knife switch box of claim 2, wherein, The limiting part comprises a limiting body and a first limiting sliding block, the first limiting sliding block is connected with the limiting body, and the limiting body is connected with the connecting part; wherein the cabinet body is provided with a first limiting sliding groove, and the limiting body is slidably connected with the first limiting sliding groove of the cabinet body through the first limiting sliding block.

5. The knife switch box of claim 1, wherein, The wire fixing structure comprises a wire fixing shell and a clamping part, the wire fixing shell is provided with a receiving groove, and the clamping part is arranged in the receiving groove; wherein the clamping part has a clamping space arranged to clamp the cable.

6. The knife switch box according to claim 5, characterized in that The clamping part comprises two clamping bodies, the two clamping bodies are symmetrically arranged along the longitudinal direction of the cabinet body, and the clamping space is formed between the two clamping bodies; the clamping body is movably arranged in the receiving groove to adjust the size of the clamping space; wherein each clamping body is provided with a non-slip pad.

7. The knife switch box according to claim 6, characterized in that The wire fixing structure comprises two adjusting screws, the two adjusting screws are symmetrically arranged along the longitudinal direction of the cabinet body, so that the adjusting screws correspond to the clamping bodies one by one; one end of the adjusting screw is screwed into the wire fixing shell and rotationally connected with the clamping body through the wire fixing shell.

8. The knife switch box of claim 6, wherein, The clamping body is provided with a second limiting sliding block, and the inner wall of the accommodating groove is provided with a corresponding second limiting sliding groove, and the clamping body is in sliding connection with the second limiting sliding groove of the accommodating groove through the second limiting sliding block.

9. The knife switch box of claim 1, wherein, The switch unit comprises an insulating back plate, a knife switch, a connecting busbar, a grounding ring, a terminal table and a quick plug interface. The insulating back plate is connected with the inner wall of the accommodating space, the connecting busbar is connected with the insulating back plate, the grounding ring, the terminal table and the quick plug interface are respectively connected with the connecting busbar, and the knife switch is rotatably installed to the insulating back plate.

10. The knife switch box of claim 1, wherein, The wiring channel is arranged close to the upper side of the box body.

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