Wiring device and power distribution cabinet

Abstract

The present invention provides a wiring device and a power distribution cabinet, wherein the wiring device comprises: a guide rail having edges extending horizontally to both sides; a wiring terminal matched with the guide rail comprises a housing having a wire pressing frame and a conductive sheet located in the wire pressing frame; an inner clamping plate located below the wire pressing frame, and both ends of the inner clamping plate are provided with a clamping portion adapted to the edge; an adjusting member connected to the inner clamping plate through the conductive sheet; an outer clamping plate arranged at the bottom of the housing, having an interlayer for accommodating the inner clamping plate, and both ends of the outer clamping plate are provided with abutting portions capable of contacting the inner wall of the guide rail; wherein, in response to an external force, the inner clamping plate can move up and down in the interlayer along the axial direction of the adjusting member, so that the clamping space formed between the clamping portion and the abutting portion can be adjusted. The present application enables the wiring terminal to adapt to the installation requirements of rails of different specifications, improves the versatility and compatibility of the equipment, and reduces the risk of loosening due to improper installation or differences in rail size.

Description

Technical Field

[0001] The present invention relates to the technical field of wiring equipment, and in particular to a wiring device and a power distribution cabinet. Background Art

[0002] In modern electrical systems, wiring devices (such as terminals, etc.) are key components for achieving electrical connection and signal transmission. At present, terminals can be divided into plug-in terminals, rail terminals, fence terminals, through-the-wall terminals, spring terminals, etc. according to different connection methods. Among them, rail terminals are widely used in various power distribution equipment, industrial control systems and electronic equipment due to their convenient installation, high flexibility, good safety and space saving.

[0003] In actual applications, rail-type terminal blocks are usually used in conjunction with rails (such as U-shaped rails, G-shaped rails, etc.), and the clamping structure set at the bottom of the terminal housing is used to achieve the clamping fit with the rail; wherein, the housing and the clamp are mostly made of plastic, and the two are generally processed in an integrated manner. Although this type of clamping fit is more convenient to operate, the connection strength of the clamp is usually not as good as other connection methods such as screws. If the clamping amount is insufficient, it is easy to cause the terminal to loosen due to deformation of the plastic part; and most of the clamps have a limited number of disassembly times, and multiple disassembly may cause the clamp to deform or be damaged. Once the clamp is broken, it is usually impossible to repair it, and the entire part may be scrapped.

[0004] For example, Chinese invention patent CN116914454A discloses a nuclear wire-pressing frame terminal block, comprising: at least two parallel-arranged terminals; the terminal comprises an insulating member, a wire-pressing frame assembly is detachably arranged in the insulating member, the wire-pressing frame assembly is used to fix the wire, the two wire-pressing frame assemblies are connected by a conductive sheet, a contact assembly is detachably connected to the conductive sheet, the contact assembly is used to short-circuit the terminal; and the terminal is mounted on a guide rail, a first positioning portion is arranged on one side of the bottom of the insulating member, the first positioning portion is hook-shaped, the first positioning portion is connected to the guide rail by clamping, and a limiting assembly is detachably connected to the other side of the bottom of the insulating member, the limiting assembly is connected to the guide rail by clamping. The patent realizes the clamping connection between the guide rail and the terminal by setting the first positioning portion and the limiting assembly, although it avoids the problem of failure of the limiting assembly due to deformation of the plastic part by configuring the limiting assembly as a metal material. However, this connection structure, on the one hand, still cannot completely avoid deformation of the snap-fit ​​structure (such as deformation of the first positioning portion), and on the other hand, the detachable limit assembly structure increases the structural complexity and production cost of the terminal block, thereby affecting the actual use effect of the product.

[0005] In addition, for a guide rail of a certain specification, the clips in the matching terminal blocks usually have specific dimensions. When the dimensions of the guide rail change, the dimensions of the clip structure will also be adaptively adjusted; that is, the guide rail-type terminal blocks existing in the prior art can usually only be installed on guide rails of specific specifications (such as 35mm wide, 7.5mm deep, and 1mm thick), and cannot be applied to guide rails of other specifications. This limits the scope of application of the terminal blocks to a certain extent, and cannot achieve compatibility between terminal blocks of different specifications and sizes and guide rails, thereby increasing the installation and maintenance costs of electrical components to a certain extent. Summary of the invention

[0006] In view of the problems in the prior art that the snap-on structure of the wiring terminal is easily deformed and affects the connection stability with the guide rail, and the wiring terminal has poor compatibility, the present invention provides a wiring device and a distribution cabinet to improve the connection effect between the wiring terminal and the guide rail, and enhance the application scope and compatibility of the wiring terminal.

[0007] In a first aspect, the present invention provides a wiring device, comprising: A guide rail having edges extending horizontally to both sides; The wiring terminals that match the guide rail include The housing comprises a wire pressing frame and a conductive sheet located in the wire pressing frame; The inner clamping plate is located below the wire pressing frame, and both ends of the inner clamping plate are provided with clamping parts adapted to the edge; An adjusting member is connected to the inner clamping plate through the conductive sheet; The outer clamping plate arranged at the bottom of the shell body is provided with an interlayer for accommodating the inner clamping plate, and both ends of the outer clamping plate are provided with abutment parts capable of contacting the inner wall of the guide rail; In response to the external force, the inner clamping plate can move up and down in the interlayer along the axial direction of the adjusting member, so that the clamping space formed between the clamping portion and the abutting portion can be adjusted.

[0008] In some embodiments, a clamping hole connected to the interior of the shell is opened at the top of the shell; the terminal also includes a clamping piece located in the clamping hole, the clamping piece passes through the top of the wire pressing frame and is connected to the conductive sheet, and under the action of external force, the conductive sheet can move up and down in the wire pressing frame along the axial direction of the clamping piece.

[0009] In some embodiments, the outer clamp includes a first plate body and a second plate body that are relatively arranged, and a sleeve arranged at the connection between the first plate body and the second plate body, and the first plate body and the second plate body are enclosed to form a sandwich; the adjusting piece is an adjusting bolt, and the inner clamp includes a third plate body with a connecting hole and a slider arranged in the connecting hole, and the adjusting bolt passes through the sleeve and cooperates with the slider.

[0010] In some embodiments, an assembly hole is opened in the middle of the conductive sheet; the terminal also includes an elastic member sleeved on the outside of the sleeve, and the two ends of the elastic member can respectively abut against the inner clamping plate and the conductive sheet, and the inner diameter of the assembly hole is larger than the outer diameter of the sleeve, so that the conductive sheet can slide up and down relative to the sleeve under the elastic force of the elastic member.

[0011] In some embodiments, the top abutment portion has an arc segment and a raised segment connected to each other. The arc segment is formed on both side edges of the first plate body and the second plate body, and the arc segment can adapt to the contour of the edge. The raised segment forms the bottom end of the arc segment and can abut against the inner side wall of the guide rail.

[0012] In some embodiments, the engaging portion has an extending section and a hook section connected to each other, the extending section is located above the edge, and the hook section extends toward the guide rail and is located below the edge.

[0013] In some embodiments, a pair of wire entry holes connected to the wire pressing frame are respectively opened on both sides of the shell, and the cross-section of the wire entry holes is trapezoidal.

[0014] In some embodiments, an anti-dropping portion is provided at the bottom of the conductive sheet and / or the inner wall of the wire pressing frame.

[0015] In the second aspect, the present invention also provides a power distribution cabinet, comprising a cabinet body and a wiring device as above, the wiring device also comprising a temperature detection module arranged on the shell body for detecting the temperature of the conductive sheet; the cabinet body comprises a working chamber for accommodating the wiring device, a bottom air inlet chamber, a middle heat exchange chamber and a top exhaust chamber respectively located at the periphery of the working chamber, and a control module arranged in the working chamber, the bottom air inlet chamber, the middle heat exchange chamber, the top exhaust chamber and the working chamber are connected, and a fan is arranged in the bottom air inlet chamber, a refrigeration module is arranged in the middle heat exchange chamber, and an adjustable guide plate is arranged in the top exhaust chamber, and the control module is respectively connected to the temperature detection module, the fan, the refrigeration module and the adjustable guide plate.

[0016] In some embodiments, the inner walls of the bottom air inlet cavity, the middle heat exchange cavity, and the top air exhaust cavity are all coated with a graphene thermal conductive coating.

[0017] Due to the adoption of the above technical solution, the technical effects achieved by the present invention are as follows: First, the wiring device provided by the present invention includes a guide rail and a wiring terminal, and the wiring terminal includes a housing, an inner clamping plate, an adjusting member and an outer clamping plate. Among them, the inner clamping plate is located below the wire pressing frame and has a clamping portion adapted to the edge of the guide rail at both ends, the outer clamping plate is arranged at the bottom of the housing and has a top abutment portion at both ends, and the adjusting member connects the inner clamping plate and the conductive sheet. In this arrangement, when the inner clamping plate moves axially along the adjusting member, the clamping space formed between the clamping portion and the top abutment portion is adjustable, so that the wiring terminal can adapt to the installation requirements of guide rails of different specifications, thereby improving the versatility and compatibility of the device. In addition, the adjustable clamping space helps to better fix the wiring terminal on the guide rail during the installation process, enhance the stability of the connection between the wiring terminal and the guide rail, reduce the risk of loosening caused by improper installation or guide rail size differences, and can also avoid the connection failure caused by deformation or loosening of the buckle, thereby ensuring the reliability of the circuit connection. In addition, this adjustable connection method is not only convenient for installation, but also convenient for multiple disassembly, which greatly avoids the problem of deformation or damage of the traditional buckle structure due to multiple disassembly.

[0018] Secondly, the present invention also provides a power distribution cabinet, including a cabinet body and a wiring device as described above. By configuring the wiring device in the power distribution cabinet, the reliability and stability of the electrical equipment are improved. In addition, the setting of the temperature detection module in the wiring device can monitor the temperature of the conductive sheet in real time, detect abnormal conditions in time, and avoid electrical failures caused by overheating; the synergistic effect of the bottom air inlet chamber, the middle heat exchange chamber and the top exhaust chamber, combined with the setting of the fan, the refrigeration module and the adjustable guide plate, realizes efficient heat dissipation of the power distribution cabinet; in addition, by presetting the relevant temperature monitoring program in the control module, the intelligent heat dissipation control of the power distribution cabinet can be realized, which improves the operating efficiency and reliability of the equipment.

[0019] The above description is only an overview of the technical solution of the embodiment of the present invention. In order to more clearly understand the technical means of the embodiment of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic structural diagram of a wiring device provided by the present invention; Figure 2 It is a structural schematic diagram of a wiring terminal provided by the present invention; Figure 3 It is a structural schematic diagram of another wiring terminal provided by the present invention; Figure 4 It is a structural schematic diagram of an outer splint provided by the present invention; Figure 5 It is a structural schematic diagram of an inner splint provided by the present invention; Figure 6 It is a structural schematic diagram of another wiring terminal provided by the present invention; Figure 7 It is a structural schematic diagram of another wiring device provided by the present invention; Figure 8 It is a structural schematic diagram of another wiring terminal provided by the present invention; Fig. 9 It is a structural schematic diagram of a power distribution cabinet provided by the present invention; Fig.10 It is a structural schematic diagram of another power distribution cabinet provided by the present invention; Fig.11 It is a structural schematic diagram of another power distribution cabinet provided by the present invention; Fig.12 It is a structural schematic diagram of another power distribution cabinet provided by the present invention.

[0022] Description of main reference numerals: 100 guide rails, 110 edges; 200 terminal, 210 housing, 211 wire pressing frame, 212 conductive sheet, 213 pressing hole, 214 pressing member, 215 assembly hole, 216 wire entry hole, 217 anti-slip portion, 220 inner clamping plate, 221 engaging portion, 2211 extension section, 2212 hook section, 222 third plate, 223 connecting hole, 224 slider, 230 adjusting member, 240 outer clamping plate, 241 abutting portion, 2411 arc section, 2412 protruding section, 242 first plate, 243 second plate, 244 sleeve, 250 elastic member; 300 cabinet, 310 inner panel, 311 ventilation hole, 312 partition plate, 320 outer panel, 330 control module, 340 fan, 350 refrigeration module, 360 guide plate. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] Reference Figure 1-Figure 3 As shown, an embodiment of the present invention provides a wiring device, including a guide rail 100 and a wiring terminal 200 matching the guide rail 100; the guide rail 100 has an edge 110 extending horizontally to both sides, and the wiring terminal 200 includes a shell 210, an inner clamping plate 220, an adjusting member 230 and an outer clamping plate 240.

[0025] Specifically, the shell 210 has a wire pressing frame 211 and a conductive sheet 212 located in the wire pressing frame 211, the inner clamp 220 is located below the wire pressing frame 211, and the two ends of the inner clamp 220 are provided with a snap-fitting portion 221 adapted to the edge 110, the adjusting member 230 passes through the conductive sheet 212 and is connected to the inner clamp 220, the outer clamp 240 is arranged at the bottom of the shell 210, and is provided with an interlayer (not marked in the figure) for accommodating the inner clamp 220, and the two ends of the outer clamp 240 are provided with abutting portions 241 that can contact the inner wall of the guide rail 100; wherein, in response to the action of external force, the inner clamp 220 can move up and down in the interlayer along the axial direction of the adjusting member 230, so that the clamping space formed between the snap-fitting portion 221 and the abutting portion 241 can be adjusted.

[0026] It should be noted that the guide rail 100 that matches the terminal block 200 in the present application may be a U-shaped guide rail 100, a G-shaped guide rail 100, etc., or a DIN rail 100 (a standard guide rail 100 developed by the German Institute for Standardization (Deutsches Institut fürNormung eV)); taking the DIN rail 100 as an example, the width, depth and thickness of the guide rail 100 may be 32mm*7.5mm*1mm, or 35mm*15mm*1mm, 35mm*16mm*1.8mm, etc. The present application does not limit the specific type and size specifications of the guide rail 100.

[0027] The housing 210 is a supporting and fixing component of the terminal block 200, and it can be configured as an integrated structure or a split structure. Compared with the integrated structure, the split structure facilitates the disassembly and replacement of the components inside the housing 210, thereby reducing the difficulty of assembling the terminal block 200 to a certain extent. Optionally, the housing 210 includes a first sub-shell (not marked in the figure) and a second sub-shell (not marked in the figure) that are relatively arranged, and the first sub-shell and the second sub-shell are arranged in a symmetrical structure. The arrangement of this symmetrical structure can evenly arrange the connection structure of the housing 210 (such as connecting columns, studs, through holes, etc.), thereby facilitating the miniaturization of the size of the housing 210. In addition, the housing 210 is preferably made of insulating materials, such as plastic materials (polypropylene, polyamide, polycarbonate, nylon, etc.), ceramic materials (aluminum oxide, silicon nitride, etc.), and the present application does not limit the specific structure and material of the housing 210.

[0028] Regarding the fixing structure of the wire pressing frame 211 and the outer clamping plate 240 and other parts on the housing 210, the present application can have a variety of different implementations. For example, the wire pressing frame 211 and the housing 210 can be fixed by bonding, integral molding, threaded connection, etc.; the connection between the outer clamping plate 240 and the housing 210 can be achieved by setting a fixing column (not marked in the figure) on the inner wall of the housing 210 and opening a fixing hole (not marked in the figure) on the surface of the outer clamping plate 240 that matches the fixing column, and the present application does not limit this.

[0029] In addition, the inner clamping plate 220 is embedded in the interlayer of the outer clamping plate 240, and the clamping space formed between the clamping portion 221 and the abutting portion 241 is adjusted by the relative movement between the inner clamping plate 220 and the outer clamping plate 240. The movement of the inner clamping plate 220 is mainly realized by the transmission of the adjusting member 230, and the transmission of the adjusting member 230 can be in a variety of different ways, such as push-pull transmission and spiral transmission. When the adjusting member 230 adopts push-pull transmission, the adjusting member 230 can be configured as an adjusting rod, and the top of the adjusting rod can also be provided with a pull ring, a pull buckle or a protrusion, so that the user can operate it through relevant tools (such as pliers, hooks, etc.); when the adjusting member 230 adopts spiral transmission, it can be configured as an adjusting bolt, and the top of the adjusting bolt can be provided with a bolt head, and the surface of the bolt head is provided with a straight groove or a cross groove, so that the user can operate it through tools such as screwdrivers.

[0030] Accordingly, when the clamping space is adjusted to the right position, in order to fix the position of the inner clamping plate 220 relative to the outer clamping plate 240, a relevant locking structure is usually provided inside the terminal block 200. For the push-pull transmission type adjusting member 230, the locking structure can be provided by providing a slideway adapted to the adjusting rod inside the housing 210, the inner wall of the slideway is provided with a plurality of evenly distributed limiting grooves, and the outer wall of the adjusting rod is provided with limiting protrusions matched with the limiting grooves; at this time, when the adjusting rod moves up and down in the slideway, the limiting protrusion enters the limiting groove, and the relative position of the adjusting rod and the inner clamping plate 220 can be limited; for the screw transmission type adjusting member 230, because the thread itself has a certain locking and limiting function, the position of the adjusting member 230 and the inner clamping plate 220 can be locked by providing a slider 224 matched with the adjusting bolt in the inner clamping plate 220.

[0031] In the wiring device provided by the present invention, when the inner clamping plate 220 moves axially along the adjusting member 230, the clamping space formed between the clamping portion 221 and the abutting portion 241 is adjustable, so that the wiring terminal 200 can adapt to the installation requirements of the guide rails 100 of different specifications, thereby improving the versatility and compatibility of the device. In addition, the adjustable clamping space helps to better fix the wiring terminal 200 on the guide rail 100 during the installation process, enhance the stability of the connection between the wiring terminal 200 and the guide rail 100, reduce the risk of loosening due to improper installation or size differences of the guide rail 100, and avoid connection failure caused by deformation or loosening of the buckle, thereby ensuring the reliability of the circuit connection. In addition, this adjustable connection method is not only easy to install, but also easy to disassemble multiple times, which greatly avoids the problem of deformation or damage of the traditional buckle structure due to multiple disassembly.

[0032] In some embodiments, reference Figure 3 As shown, a clamping hole 213 connected to the interior of the shell 210 is opened at the top of the shell 210; the terminal 200 also includes a clamping piece 214 located in the clamping hole 213, the clamping piece 214 passes through the top of the wire pressing frame 211 and is connected to the conductive sheet 212, and under the action of external force, the conductive sheet 212 can move up and down in the wire pressing frame 211 along the axial direction of the clamping piece 214.

[0033] Preferably, the clamping hole 213 may be a through hole connected to the interior of the housing 210, the clamping member 214 may be a clamping bolt, and a threaded hole (not shown in the figure) that matches the clamping bolt may be provided at the top of the wire pressing frame 211. Exemplarily, when the clamping bolt is rotated forward, the clamping bolt moves downward along its axial direction under the thread matching, thereby driving the conductive sheet 212 to move downward in the wire pressing frame 211; when the clamping bolt is rotated backward, the clamping bolt moves upward along its axial direction under the thread matching, thereby driving the conductive sheet 212 to move upward in the wire pressing frame 211, thereby realizing the relative movement between the conductive sheet 212 and the wire pressing frame 211.

[0034] This adjustable wire pressing method can, on the one hand, avoid damage to the wire due to excessive pressing force of the conductive sheet 212, and also prevent the wire from loosening due to insufficient pressing force of the conductive sheet 212; on the other hand, this design can enable the terminal block 200 to better adapt to wires of different diameters, ensure that the wires are firmly pressed, reduce contact resistance, and improve the reliability of electrical connection.

[0035] In some embodiments, reference Figure 4 and Figure 5As shown, the outer clamping plate 240 includes a first plate body 242 and a second plate body 243 that are arranged opposite to each other, and a sleeve 244 arranged at the connection between the first plate body 242 and the second plate body 243, and the first plate body 242 and the second plate body 243 are surrounded to form a sandwich; the adjusting member 230 is an adjusting bolt, and the inner clamping plate 220 includes a third plate body 222 with a connecting hole 223 and a slider 224 arranged in the connecting hole 223, and the adjusting bolt passes through the sleeve 244 and cooperates with the slider 224.

[0036] It should be noted that, in order to avoid interference during the movement of the inner plate 220 relative to the outer plate 240, preferably, there may be an avoidance gap between the inner plate 220 and the outer plate 240, and the range of the avoidance gap may be between 0.1-0.5 mm. In addition, although the present application does not limit the specific structure of the slider 224 and the connecting hole 223, for the sake of connection stability, the connecting hole 223 may be configured as a rectangular hole, and the slider 224 may be configured as a rectangular slider 224, and the present application does not limit this. Moreover, during the movement of the inner plate 220 relative to the outer plate 240, in order to prevent the inner plate 220 from shaking to the left and right to a large extent, the slider 224 may also have flanges extending outward on both sides (not marked in the figure), and the flanges may contact the inner wall of the outer plate 240 to limit the relative shaking between the inner plate 220 and the outer plate 240.

[0037] This arrangement of the inner clamping plate 220 and the outer clamping plate 240 makes the up and down movement of the inner clamping plate 220 in the interlayer more precise and controllable. The cooperation of the adjusting bolt and the slider 224 can provide precise and stable adjustment force, which is convenient for the operator to adjust the position of the inner clamping plate 220 according to actual needs, thereby accurately controlling the clamping space between the locking portion 221 and the supporting portion 241, thereby optimizing the fixing effect of the terminal block 200 on the guide rail 100.

[0038] In some embodiments, reference Figure 3 and Figure 6 As shown, a mounting hole 215 is provided in the middle of the conductive sheet 212; the terminal block 200 further includes an elastic member 250 sleeved on the outside of the sleeve 244, and the two ends of the elastic member 250 can respectively abut against the inner clamping plate 220 and the conductive sheet 212, and the inner diameter of the mounting hole 215 is larger than the outer diameter of the sleeve 244, so that the conductive sheet 212 can slide up and down relative to the sleeve 244 under the elastic force of the elastic member 250. The elastic member 250 can be a spring, a spring, etc.

[0039] This arrangement, on the one hand, enables the conductive sheet 212 to automatically adapt to the diameter of the wire through the elastic force of the elastic member 250, always maintaining the appropriate clamping force of the conductive sheet 212, further improving the clamping effect of the wire and the reliability of the electrical connection; on the other hand, the elastic member 250 can buffer external vibration or impact, reduce the problem of loosening of the conductive sheet 212 or poor contact of the wire caused by vibration, and improve the stability of the terminal 200 in a complex environment; on the other hand, through the buffering effect of the elastic member 250, the friction and wear between the conductive sheet 212 and the wire pressing frame 211 are reduced, and the service life of the terminal 200 is extended. In addition, through the size matching of the sleeve 244 and the assembly hole 215, the sleeve 244 can move in the assembly hole 215, thereby realizing the independent movement of the conductive sheet 212 and the inner clamping plate 220, avoiding interference between the two during the movement.

[0040] In some embodiments, reference Figure 4 , Figure 5 and Figure 7 As shown, the top abutting portion 241 has an arc segment 2411 and a raised segment 2412 connected to each other, the arc segment 2411 is formed on both side edges of the first plate body 242 and the second plate body 243, and the arc segment 2411 can adapt to the contour of the edge 110, and the raised segment 2412 forms the bottom end of the arc segment 2411 and can abut against the inner wall of the guide rail 100; further, the locking portion 221 has an extended segment 2211 and a hook segment 2212 connected to each other, the extended segment 2211 is located above the edge 110, and the hook segment 2212 extends toward the guide rail 100 and is located below the edge 110.

[0041] The extension section 2211 provides a preliminary limit at the top, and the hook section 2212 further hooks the guide rail 100 at the bottom, forming a double upper and lower limit, which effectively prevents the terminal block 200 from falling off upward on the guide rail 100 due to vibration or external force, enhances the fixing effect of the terminal block 200 on the guide rail 100, and ensures the reliability of the circuit connection.

[0042] Among them, the arc section 2411 can better fit the shape of the guide rail 100, increase the contact area between the top part 241 and the guide rail 100, thereby helping to improve the stability of the connection between the guide rail 100 and the terminal 200; the raised section 2412 abuts against the inner wall of the guide rail 100, and can form a firm contact point on the inner wall of the guide rail 100, further enhancing the connection strength between the terminal 200 and the guide rail 100, and preventing the two from loosening due to external force; the setting of the extension section 2211 provides the terminal 200 with sufficient space for installation and disassembly, making the assembly of the terminal 200 more convenient, while reducing damage to the clamping part 221; the hook part can firmly clamp the edge 110 of the guide rail 100, avoiding the terminal 200 from loosening due to external force or vibration, and improving the reliability of the connection. In addition, the extension section 2211 provides a preliminary limit above the edge 110, and the hook section 2212 further hooks the guide rail 100 below the edge 110, forming a double upper and lower limit, which effectively prevents the terminal 200 from falling off upward on the guide rail 100 due to vibration or external force; in addition, the structure of the supporting portion 241 and the locking portion 221 greatly reduces the deformation or damage of the snap structure caused by frequent disassembly, thereby extending the service life of the terminal 200.

[0043] In some embodiments, reference Figure 3 and Figure 8 As described above, a pair of wire entry holes 216 communicating with the wire pressing frame 211 are respectively formed on both sides of the housing 210 , and the cross-section of the wire entry holes 216 is trapezoidal.

[0044] On the one hand, the trapezoidal cross-section wire entry hole 216 can better guide the wire into the wire pressing frame 211, reducing the damage that the wire may suffer during the insertion process, and improving the convenience and efficiency of wiring; on the other hand, the trapezoidal wire entry hole 216 can adapt to wires of different diameters, enhance the compatibility of the terminal block 200 with wires of different specifications, reduce installation problems caused by mismatched wire diameters, and at the same time reduce friction on the wire during insertion and removal, thereby extending the service life of the wire.

[0045] In some embodiments, reference Figure 6 As shown, the bottom of the conductive sheet 212 and / or the inner wall of the wire pressing frame 211 are provided with an anti-slip portion 217. Optionally, the anti-slip portion 217 can be an anti-slip groove, an anti-slip rib, an anti-slip convex point, etc., and the present application does not limit the specific structure of the anti-slip portion 217.

[0046] After the wire is inserted into the wire pressing frame 211 and connected to the conductive sheet 212, the anti-detachment portion 217 can prevent the wire from accidentally detaching during use. Especially when the device is subjected to external forces such as vibration and pulling, the anti-detachment portion 217 can effectively limit the displacement of the wire, thereby ensuring a stable connection between the wire and the conductive sheet 212 and ensuring the normal operation of the circuit.

[0047] In addition, refer to Figure 9-12 As shown, the present invention also provides a power distribution cabinet, including a cabinet body 300 and a wiring device as described above, the wiring device also includes a temperature detection module (not shown in the figure) arranged on the shell body 210, so as to detect the temperature of the conductive sheet 212; the cabinet body 300 includes a working chamber (not marked in the figure) for accommodating the wiring device, a bottom air inlet chamber (not marked in the figure), a middle heat exchange chamber (not marked in the figure) and a top exhaust chamber (not marked in the figure) respectively located at the periphery of the working chamber, and a control module 330 arranged in the working chamber, the bottom air inlet chamber, the middle heat exchange chamber, the top exhaust chamber and the working chamber are connected, and a fan 340 is arranged in the bottom air inlet chamber, a refrigeration module 350 is arranged in the middle heat exchange chamber, and an adjustable guide plate 360 ​​is arranged in the top exhaust chamber, and the control module 330 is respectively connected to the temperature detection module, the fan 340, the refrigeration module 350 and the adjustable guide plate 360.

[0048] Specifically, refer to Fig.10 and Fig.12 As shown, the cabinet 300 also includes an inner panel 310 and an outer panel 320 located outside the inner panel 310, and the inner panel 310 encloses a working chamber, and the outer panel 320 and the inner panel 310 enclose a bottom air inlet chamber, a middle heat exchange chamber and a top exhaust chamber, and the top of the inner panel 310 is provided with ventilation holes 311 respectively connected to the top exhaust chamber and the working chamber. Further, along the vertical direction, partition plates 312 are also provided on both sides of the bottom of the inner panel 310 to separate the bottom air inlet chamber into a first air inlet sub-chamber (not marked in the figure) and a second air inlet sub-chamber (not marked in the figure). Optionally, there are two fans 340, and the two fans 340 are respectively arranged in the first air inlet sub-chamber and the second air inlet sub-chamber; the refrigeration module 350 is formed by a plurality of semiconductor refrigeration sheets arranged in an array; there are a plurality of guide plates 360, and the plurality of guide plates 360 are arranged at intervals.

[0049] The setting of the first air inlet sub-chamber and the second air inlet sub-chamber helps to realize the stratified air intake of the equipment, and different air inlet sub-chambers can adjust the air intake flow rate, direction, etc. according to actual needs. For example, in some equipment that requires precise temperature control, one air inlet sub-chamber can input air with a lower temperature, and the other can input air with a slightly higher temperature, and then mix and exchange heat in the middle heat exchange chamber, so as to achieve more precise temperature regulation.

[0050] In addition, the bottom air inlet chamber, the middle heat exchange chamber and the top exhaust chamber are arranged in sequence from bottom to top, so that the heat exchange has a clear path. The air enters from the bottom air inlet chamber, passes through the middle heat exchange chamber to exchange heat with the working chamber, and then the hot air is discharged from the top exhaust chamber, which is beneficial to improve the heat exchange efficiency, reduce local overheating or overcooling, and ensure that the temperature in the working chamber is stable within an appropriate range.

[0051] In addition, the working chamber formed by the inner enclosure 310 separates the electrical components inside the distribution cabinet from the bottom air inlet chamber, the middle heat exchange chamber and the top exhaust chamber, thereby preventing condensed water or other impurities generated during the equipment's heat dissipation process from entering the working chamber, thereby improving the safety and reliability of the equipment's operation.

[0052] When the temperature is too high, the control module 330 can start the cooling devices such as the fan 340 and the cooling module 350 according to the temperature signal, and adjust the adjustable guide plate 360 ​​to optimize the cooling airflow path. This structure can effectively dissipate the heat of the wiring device in the power distribution cabinet, prevent the performance degradation of the terminal 200 and the aging of the wire insulation due to excessive temperature, and improve the safety and reliability of the overall operation of the power distribution cabinet. In addition, by presetting the relevant temperature monitoring program in the control module 330, the intelligent heat dissipation control of the power distribution cabinet can be realized, which improves the operating efficiency and reliability of the equipment.

[0053] In some embodiments, the inner walls of the bottom air inlet cavity, the middle heat exchange cavity, and the top air exhaust cavity are all coated with a graphene thermal conductive coating.

[0054] The graphene thermal conductive coating has good thermal conductivity, which can accelerate the conduction of heat on the inner wall of the chamber and improve the heat dissipation efficiency. In the process of the fan 340 promoting air flow and the refrigeration module 350 cooling, the heat can be dissipated more quickly through the inner wall of the chamber, further optimizing the heat dissipation effect of the distribution cabinet and ensuring that the equipment in the distribution cabinet operates in a suitable temperature environment.

[0055] Although the present invention has been described in detail with reference to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person of ordinary skill in the art may easily think of changes or substitutions within the technical scope disclosed by the present invention, and these shall be within the scope of protection of the present invention.

Claims

1. A wiring device, characterized in that: include: A guide rail having edges extending horizontally to both sides; The wiring terminal matched with the guide rail includes The housing comprises a wire pressing frame and a conductive sheet located in the wire pressing frame; An inner clamping plate is located below the wire pressing frame, and both ends of the inner clamping plate are provided with engaging parts adapted to the edge; An adjusting member, passing through the conductive sheet and connected to the inner clamping plate; An outer clamping plate arranged at the bottom of the shell body is provided with an interlayer for accommodating the inner clamping plate, and both ends of the outer clamping plate are provided with abutment portions capable of contacting the inner wall of the guide rail; Wherein, in response to the action of external force, the inner clamping plate can move up and down in the interlayer along the axial direction of the adjusting member, so that the clamping space formed between the clamping portion and the abutting portion can be adjusted.

2. The wiring device according to claim 1, characterized in that: The top of the shell is provided with a pressing hole connected to the interior of the shell; The terminal further comprises a clamping piece located in the clamping hole, the clamping piece passes through the top of the wire pressing frame and is connected to the conductive sheet, and under the action of external force, the conductive sheet can move up and down in the wire pressing frame along the axial direction of the clamping piece.

3. The wiring device according to claim 1, characterized in that: The outer clamping plate comprises a first plate body and a second plate body which are arranged opposite to each other, and a sleeve which is arranged at the connection between the first plate body and the second plate body, and the first plate body and the second plate body are enclosed to form the interlayer; The adjusting member is an adjusting bolt, the inner clamping plate comprises a third plate body with a connecting hole and a sliding block arranged in the connecting hole, and the adjusting bolt passes through the sleeve and cooperates with the sliding block.

4. The wiring device according to claim 3, characterized in that: An assembly hole is provided in the middle of the conductive sheet; The terminal block also includes an elastic member sleeved on the outside of the sleeve, and the two ends of the elastic member can respectively abut against the inner clamping plate and the conductive sheet, and the inner diameter of the assembly hole is larger than the outer diameter of the sleeve, so that the conductive sheet can slide up and down relative to the sleeve under the elastic force of the elastic member.

5. The wiring device according to claim 3, characterized in that: The top abutting portion has an arc segment and a raised segment connected to each other, the arc segment is formed on both side edges of the first plate body and the second plate body, and the arc segment can adapt to the contour of the edge, the raised segment forms the bottom end of the arc segment and can abut against the inner side wall of the guide rail.

6. The wiring device according to claim 5, characterized in that: The engaging portion comprises an extending section and a hook section which are connected to each other, wherein the extending section is located above the edge, and the hook section extends toward the guide rail and is located below the edge.

7. The wiring device according to claim 1, characterized in that: A pair of wire entry holes connected to the wire pressing frame are respectively formed on both sides of the shell, and the cross-sections of the wire entry holes are trapezoidal.

8. The wiring device according to claim 1, characterized in that: The bottom of the conductive sheet and / or the inner wall of the wire pressing frame are provided with an anti-slip portion.

9. A power distribution cabinet, characterized in that: It comprises a cabinet and a wiring device according to any one of claims 1 to 8, wherein the wiring device further comprises a temperature detection module arranged on the housing to detect the temperature of the conductive sheet; The cabinet includes a working chamber for accommodating the wiring device, a bottom air inlet chamber, a middle heat exchange chamber and a top exhaust chamber respectively located at the periphery of the working chamber, and a control module arranged in the working chamber, the bottom air inlet chamber, the middle heat exchange chamber, the top exhaust chamber and the working chamber are connected, and a fan is arranged in the bottom air inlet chamber, a refrigeration module is arranged in the middle heat exchange chamber, and an adjustable guide plate is arranged in the top exhaust chamber, and the control module is respectively connected to the temperature detection module, the fan, the refrigeration module and the adjustable guide plate.

10. The power distribution cabinet according to claim 9, characterized in that: The inner walls of the bottom air inlet cavity, the middle heat exchange cavity and the top air exhaust cavity are all coated with a graphene thermal conductive coating.

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