A high temperature bus duct

Abstract

The present invention discloses a high-temperature bus duct, comprising a plurality of bus duct bodies and a plurality of bus duct connection seats embedded in the bus duct bodies; the bus duct bodies are provided with connection holes for buckling the bus duct connection seats; the bus duct connection seats include a connection male seat and a connection female seat in a split design; the connection male seat is provided with a plurality of plug-in male terminals, the connection male seat is provided with a male seat buckle block, the connection female seat is provided with a plurality of plug-in female terminals matched with the plug-in male terminals, the connection female seat is provided with a female seat buckle block, the male seat buckle block and the female seat buckle block are both placed in the connection hole and can slide axially along the bus duct body, and the male seat buckle block and the female seat buckle block are respectively buckled and connected with the connection hole. The present invention has the advantages of being applicable to high-temperature environments, reliable connection, no connection failure caused by heat shrinkage and cold shrinkage of the bus duct, stable connection, and high safety.

Description

Technical Field

[0001] The invention relates to electrical parts and components, in particular to a high-temperature bus duct. Background Art

[0002] Modern high-rise buildings and large workshops require huge amounts of electrical energy, and in the face of this huge load, the powerful current of hundreds or thousands of amperes requires reliable conduction equipment, and the busbar system is a good choice. The busbar system is a power distribution device that efficiently transmits current, especially suitable for the economical and reasonable wiring needs of increasingly tall buildings and large-scale factories.

[0003] At present, bus ducts at home and abroad generally use steel or copper-aluminum composite shells, and each section of the bus duct is fixed together by a bus duct connector. This type of bus duct is very easy to deform due to the thermal expansion and contraction of the shell in a high temperature environment. Connection failure or deformation of the connection between each section of the bus duct, the bus duct and the bus duct connector is easy to occur, resulting in failure of the line in the bus duct and power interruption. The bus duct may even fall, which poses a great safety hazard.

[0004] Therefore, it is necessary to improve the existing bus duct. Summary of the invention

[0005] The object of the present invention is to provide a bus duct which is suitable for high temperature environment and safe to use.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A high-temperature bus duct, in particular, comprises a plurality of bus duct bodies and a plurality of bus duct connection seats embedded in the bus duct bodies; the bus duct bodies are provided with connection holes for buckling the bus duct connection seats; the bus duct connection seats comprise a connection male seat and a connection female seat in a split design; the connection male seat is provided with a plurality of plug-in male terminals, the connection male seat is provided with a male seat buckle block, the connection female seat is provided with a plurality of plug-in female terminals matching the plug-in male terminals, the connection female seat is provided with a female seat buckle block, the male seat buckle block and the female seat buckle block are both placed in the connection hole and can slide axially along the bus duct body, and the male seat buckle block and the female seat buckle block are respectively buckled and connected with the connection hole.

[0008] The principle of the present invention is as follows:

[0009] This high-temperature bus duct adopts a segmented design, and the length of each section of the bus duct can be determined according to the actual needs of the user. Adjacent bus ducts are connected and fixed by bus duct connectors. The male and female connectors of each bus duct connector are embedded in the interior of the bus duct body, so that there is sufficient support between the interconnected bus ducts. Because the buckle blocks of the male and female connectors are slidably connected to the connection holes of the bus duct body, when the bus duct body is heated and the adjacent bus duct bodies expand, the adjacent bus duct bodies can be separated from each other by a distance and at the same time ensure that the buckle blocks of the bus duct connector are still buckled in the corresponding connection holes, so that the adjacent bus duct bodies remain connected to avoid failure at the connection.

[0010] This bus duct connector adopts a split design, and the male connector and the female connector are respectively embedded in the corresponding bus duct body, which is convenient for line connection. In order to ensure the effective connection between the male connector and the female connector, an embedding chamber is provided in the male connector, and the male plug-in terminal is arranged at the bottom of the embedding chamber; the female connector is provided with an embedding block embedded in the embedding chamber, and the female plug-in terminal is arranged in the embedding block and penetrates the embedding block along the axial direction of the male plug-in terminal. The embedding block and the female connector are of an integrated design, and the embedding block is embedded in the embedding chamber, which can make the connection between the male connector and the female connector tighter. After the male plug-in terminal is inserted into the female plug-in terminal, the connection between the two will not fail, avoiding line failure caused by poor connection between the male connector and the female connector, and safety hazards caused by line heating. In addition, the plug-in female terminal may include a port block for wrapping the plug-in male terminal, the port block is surrounded by a plurality of elastic electrical contact sheets, and gaps are provided between adjacent elastic electrical contact sheets; in a non-plugged state, the inner diameter of the port block is smaller than the outer diameter of the plug-in male terminal; when the plug-in male terminal and the plug-in female terminal are docked with each other, the plug-in male terminal will elastically push away the elastic electrical contact sheets in the docked port block circumferentially to form an elastic interference fit, which can further ensure that the connection between the plug-in male terminal and the plug-in female terminal is effective.

[0011] Elastic sheets can also be provided on the two opposite outer side walls of the engaging block, and an elastic sheet groove is provided on the side wall of the engaging chamber corresponding to the outer side wall position of the engaging block provided with the elastic sheet. The male seat buckle block is provided on the side wall where the elastic sheet groove is located and is connected to the inside of the elastic sheet groove; a raised edge is also formed on the elastic sheet; when the connecting female seat and the connecting male seat are inserted into each other, the elastic sheet is placed in the elastic sheet groove and is elastically squeezed by the male seat buckle block, and the raised edge of the elastic sheet abuts against the male seat buckle block. In this way, the connecting male seat and the connecting female seat are fixed to each other through the elastic interference fit of the elastic sheet and the elastic sheet groove, and the assembly is very convenient.

[0012] In order to ensure the sealing of the bus duct, the bus duct body is composed of a wire duct shell and an upper cover plate. The wire duct shell includes a bottom panel and two side panels arranged vertically to the bottom panel. Both side panels are provided with cover plate plug-in slots extending to the inner side of the wire duct shell; the two sides of the upper cover plate are embedded in the cover plate plug-in slots for fixing. In actual production, the bus duct body will be several meters long. The length of the upper cover plate is too long and it is not conducive to workers to assemble the bus duct. For this reason, the cover plate plug-in slot may include an upper trough eaves and a lower trough eaves. The length of the lower trough eaves extending toward the inner side of the wire duct shell is greater than the upper trough eaves. The upper cover plate may include an upper cover plate body and a plug-in portion located on both sides of the upper cover plate body and having a thickness less than that of the upper cover plate body; the edge of the plug-in portion facing the wire duct shell side is an arc surface; the plug-in portion is embedded in the cover plate plug-in slot for installation.

[0013] In actual use, the bus duct body is provided with an electric plug, and the bus duct body is provided with an electric socket, and the electric plug and the electric socket cooperate with each other to achieve electrical connection. In order to prevent the electric plug from falling off the bus duct body, a plug buckle can be provided on the side where the electric plug and the electric socket are connected, and the bus duct body or the electric socket can be provided with a plug buckle hole that cooperates with the plug buckle; when the electric plug and the electric socket are connected, the plug buckle and the plug buckle hole form a buckle connection, so that the electric plug and the bus duct body are tightly connected.

[0014] In order to ensure the safety of the use of the electric plug and socket structure, the electric plug is also provided with a ground wire pin connected to the ground wire, and the electric socket is provided with a plurality of electric sockets and at least one grounding socket. The electric socket and the grounding socket are both provided with openings on the same end face of the seat body, and the electric socket is provided with a female wire terminal connected to the wire; the grounding socket is arranged near the periphery of the seat body, and an installation opening is formed at one end of the grounding socket facing the outside of the seat body on the periphery of the grounding socket; a ground wire clamp block is provided in the installation opening, which can be elastically restored toward the inside of the grounding socket and is used to communicate with the ground wire pin, and the ground wire clamp block extends to the outside of the seat body through the installation opening to form a spring block elastically connected to the ground wire clamp block. The periphery of the seat body refers to the circumferential side surface of the seat body surrounding the end face of the seat body with the opening. The periphery of the grounding socket refers to the circumferential side surface surrounding the opening of the grounding socket.

[0015] After the electric socket is installed in the bus duct, the electric plug is inserted into the electric socket, which will cause the ground wire pin to be inserted into the grounding socket. The ground wire pin will squeeze the ground wire clamp block, causing the ground wire clamp block to swing away from the grounding socket through the installation opening, thereby causing the spring block to move toward the inner wall of the wire duct and finally fit with the inner wall of the wire duct, thereby achieving grounding of the line inside the bus duct and preventing line leakage. At the same time, since the ground wire clamp block can elastically recover toward the grounding socket, it will continue to apply force to the ground wire pin to ensure a tight connection between the ground wire pin and the ground wire clamp block. When the electric plug is pulled out of the electric socket and the ground wire clamp block loses the squeezing of the ground wire pin, the ground wire clamp block will move toward the grounding socket under its elastic action and return to its original state. In addition, the height of the ground wire pin can be higher than the height of the wire pin. In this way, when the electric plug is inserted into or unplugged from the electric socket, the ground wire pin will always be connected to the electric socket earlier (inserted) / later (unplugged) than the wire pin, so that the electric plug is always grounded during the power-on process.

[0016] In order to ensure the elastic force of the grounding clamp, the seat body may be provided with a swing base block located in the installation opening, and the swing base block extends toward the bottom of the seat body to form a buckle block; the grounding clamp is provided with a swing through hole matching the swing base block at the end farthest from the connection position between the grounding clamp and the spring piece block, and the swing base block is inserted into the swing through hole; the spring piece block extends toward one side of the swing base block, and the spring piece block is provided with a buckle block at the end farthest from the connection position between the grounding clamp and the spring piece block, and the buckle block and the buckle block are buckled with each other. In addition, a limit stopper may be provided in the installation opening to limit the swing amplitude of the grounding clamp and prevent the grounding clamp from falling off, and a clearance position may be provided at the position of the spring piece block corresponding to the limit stopper to ensure that the spring piece block is not blocked by the limit stopper.

[0017] In order to ensure the tight connection between the ground wire pin and the ground wire clamp block, the ground wire clamp block may include a main body, a connecting part and a buckle part. One end of the main body is elastically connected to the spring block, and the other end is connected to the connecting part; one end of the connecting part is connected to the main body, and the other end is connected to the buckle part; the buckle part and the main body are staggered and a gap is formed, and the swing through hole is formed on the connecting part and the buckle part. In this way, by designing that the main body and the buckle part are staggered, the buckle part is connected to the swing base block, and the main body is placed in the grounding socket and abuts against the pin.

[0018] In order to facilitate the installation of the ground wire clip and the wire clip, the base body may include a base and a bottom cover of a split design, the bottom of the base is connected to the bottom cover, and an opening is formed at the top of the base. The base may also be provided with a plurality of wiring channels that match the electrical jacks, and the bottom cover is provided with a plurality of fixing bumps, the distribution positions of the fixing bumps correspond to the wiring channels, and after the base and the bottom cover are covered, the fixing bumps are embedded in the wiring channels. In this way, the base and the bottom cover can be embedded in the wiring channels through the fixing bumps to achieve connection and fixation, which facilitates the assembly of the base and the bottom cover.

[0019] When the plug and socket structure is applied to a wire trough, in order to monitor and control the line status, one of the wires in the wire trough can be selected as a signal transmission line. However, since the surface of the wire pin is generally plated with a coating, the coating is easily oxidized when in a high temperature environment for a long time, resulting in poor contact between the electric plug and the electric socket, affecting signal transmission. In this regard, at least one female wire terminal in the electric socket is a female wire terminal that matches the wire for signal transmission, which includes two clamping pieces for clamping the wire pins, the two clamping pieces are arranged oppositely, and the inner wall of at least one clamping piece is provided with a plurality of protrusions. In this way, after the wire pin corresponding to the wire for signal transmission is inserted into the female wire terminal, the protrusions arranged on the inner wall of the clamping piece can cut the coating on the surface of the wire pin, so that the clamping piece can be directly connected with the inner metal layer of the wire pin, ensuring the stability of signal transmission and avoiding the situation where signal transmission fails due to poor contact.

[0020] When the bus duct is in use, the ambient temperature is very high. If the wires come into contact with the bus duct, the insulation layer of the wires may melt, which undoubtedly poses a safety hazard. For this reason, a wiring block can be provided in the bus duct body of the bus duct, which allows the internal wires to be suspended in the bus duct body. The wiring block is made of high temperature resistant insulating material.

[0021] The bus duct is generally equipped with a wire duct clip to fix the position of the bus duct and prevent it from falling off. In order to ensure that the peripheral wall of the bus duct can be clamped, the wire duct clip shell includes a clip body and a clip block. The clip body is provided with an installation space for accommodating the wire duct; the cross-sectional profile of the installation space is square, and at least one side of the square is provided with an opening connected to the installation space on the clip body; the installation space is provided with a first pressing edge, which extends vertically to the side of the clip body and is arranged along the edge of the square; the clip block is flipped and connected to the clip body and flipped to close at the opening, and the clip block is provided with a second pressing edge extending vertically to the side of the clip body; after the clip block is closed at the opening, the second pressing edge and the first pressing edge enclose a wire duct hole with a square cross-sectional profile.

[0022] The bus duct can enter the installation space through the opening provided on the buckle body. When the bus duct is placed in the installation space, since the cross-sectional profile of the installation hole is square, the bottom and side walls of the bus duct can be tightly fitted with the first pressing edge of the buckle body, and after the stopper is closed at the opening, the second pressing edge provided on the stopper can be pressed on the top cover of the bus duct to ensure that the four circumferential walls of the bus duct are clamped. In this way, even if the bus duct is deformed by heat, the top cover of the bus duct will be tightly pressed into the slot hole to avoid the risk of falling off due to deformation.

[0023] In order to ensure that the flip connection between the stopper block and the buckle body is effective, the stopper block can be connected to the buckle body by means of a screw and nut, and an elastic medium can be provided between the nut and the buckle body to lock the position of the nut. Through the screw and nut, the stopper block can be arranged on one side of the buckle body and flipped relative to the buckle body. In order to ensure that the stopper block and the buckle body are conveniently locked, a buckle hole can be provided on the buckle body, and the buckle hole is arranged close to the opening, and the stopper block protrudes toward one side of the buckle body to form a convex block, which corresponds to the position of the buckle hole and can be embedded in the buckle hole.

[0024] In order to ensure the tight connection between the bus duct and the buckle body, spring plates can be provided on the first pressing edges on the two opposite sides of the installation space, and the spring plates are located on the side of the first pressing edge facing the installation space. When the bus duct is placed in the installation space, the spring plates can press the two side walls of the bus duct to assist in pressing the bus duct.

[0025] The present invention has the advantages of being applicable to high temperature environments, having reliable connections, not causing connection failure due to heat shrinkage and cold shrinkage of the bus duct, having stable connections, and having high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of a high-temperature bus duct in Embodiment 1 of the present invention;

[0027] Figure 2 is a cross-sectional schematic diagram of the high-temperature bus duct in Embodiment 1 of the present invention;

[0028] Figure 3 yes Figure 2 A partial enlarged view of middle A;

[0029] Figure 4 yes Figure 3 A partial enlarged view of B in the middle;

[0030] Figure 5 is a schematic diagram of a bus duct body in Embodiment 1 of the present invention;

[0031] Figure 6 yes Figure 5 A partial enlarged view of middle C;

[0032] Figure 7 is a schematic diagram of a bus duct connection socket in Embodiment 1 of the present invention;

[0033] Figure 8 is a schematic diagram of a connection male socket in Embodiment 1 of the present invention;

[0034] Fig. 9 is a schematic diagram of connecting the female socket in embodiment 1 of the present invention;

[0035] Fig.10 yes Fig. 9 A partial enlarged view of D in the middle;

[0036] Fig.11 is a schematic diagram of the cooperation between the electric plug and the electric socket in Embodiment 1 of the present invention;

[0037] Fig.12 is a schematic diagram of an electric plug in Embodiment 1 of the present invention;

[0038] Fig.13 is a schematic diagram of an electrical socket in Embodiment 1 of the present invention;

[0039] Fig.14 yes Fig.13 A partial enlarged view of E in the middle;

[0040] Fig.15 is a schematic structural diagram of a base in Embodiment 1 of the present invention;

[0041] Fig.16 is a schematic structural diagram of the bottom cover in Embodiment 1 of the present invention;

[0042] Fig.17 is a schematic structural diagram of a ground wire clip in Embodiment 1 of the present invention;

[0043] Fig.18 is a schematic diagram of a clipping piece in Embodiment 1 of the present invention;

[0044] Fig.19 is a schematic diagram of the structure of the wire slot buckle in Example 1 of the present invention;

[0045] Fig. 20 Schematic diagram of a spring in a wire slot buckle in Embodiment 1 of the present invention;

[0046] Fig.21 A schematic diagram of the closing of the wire trough buckle in Embodiment 1 of the present invention;

[0047] Fig. 22 A schematic diagram of the structure of the wire trough buckle in Embodiment 2 of the present invention;

[0048] Fig.23 Schematic diagram of stacking of wire trough clips in Example 2 of the present invention.

[0049] Description of reference numerals: 1-bus duct body; 2-duct shell; 3-upper cover; 4-bottom panel; 5-side panel; 6-connection hole; 7-cover plug-in slot; 8-upper duct eaves; 9-lower duct eaves; 10-upper cover body; 11-plug-in portion; 12-arc-shaped surface; 13-bus duct connection seat; 14-connection male seat; 15-connection female seat; 16-embedded chamber; 17-plug-in male terminal; 18-guide groove; 19-spring slot; 20-male seat buckle block; 21-connection female seat body; 22 - female seat buckle block; 23- fitting block; 24- guide strip; 25- spring sheet; 26- raised edge; 27- female plug-in terminal; 28- elastic electrical contact piece; 29- gap; 30- electric plug; 31- electric socket; 32- wire plug pin; 33- ground wire plug pin; 34- guide hole; 35- flange; 36- spring mounting hole; 37- plug buckle; 38- plug buckle body; 39- spring mounting column; 40- pressing part; 41- extrusion surface; 42- buckle block; 43- guide slope ;44-abutting surface;45-plug buckle hole;46-seat body;47-base;48-bottom cover;49-electrical socket;50-grounding socket;51-opening;52-wire clamp;53-positioning block;54-installation opening;55-ground wire clamp;56-ground wire clamp block;57-spring block;58-body;59-connecting part;60-buckle part;61-swing through hole;62-swing base block;63-buckle block;64-buckle block;65-limit stopper;66-avoiding position ;67-wiring channel;68-fixing protrusion;69-clamping piece;70-protrusion;71-wiring block;72-cable slot buckle;73-cable body;74-stop block;75-first buckle edge;76-second buckle edge;77-third buckle edge;78-installation space;79-opening;80-first pressing edge;81-fixing edge;82-installation through hole;83-cable hole;84-spring;85-second pressing edge;86-cable slot hole;87-protrusion;88-spring. DETAILED DESCRIPTION

[0050] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0051] Example 1

[0052] like Figures 1 to 21The high temperature bus duct shown is composed of a multi-section aluminum bus duct body 1, each bus duct body 1 is composed of a wire duct shell 2 and an upper cover plate 3, the wire duct shell 2 includes a bottom panel 4 and two side panels 5 arranged vertically to the bottom panel 4, and the two side panels 5 are provided with connection holes 6, which are respectively located at both ends of the side panels 5. In addition, the two side panels 5 are provided with a cover plate plug-in slot 7 extending to the inner side of the wire duct shell 2, and the cover plate plug-in slot 7 includes an upper slot eaves 8 and a lower slot eaves 9, and the length of the lower slot eaves 9 extending toward the inner side of the wire duct shell 2 is greater than the upper slot eaves 8; the upper cover plate 3 includes an upper cover plate body 10 and a plug-in portion 11 located on both sides of the upper cover plate body 10 and having a thickness less than the upper cover plate body 10; the edge of the plug-in portion 11 facing the wire duct shell 2 is an arc surface 12; the plug-in portion 11 is embedded in the plug-in slot for installation and fixation.

[0053] Adjacent bus duct bodies 1 are connected and fixed by a bus duct connection seat 13 embedded in the bus duct body 1. The bus duct connection seat 13 is composed of a connection male seat 14 and a connection female seat 15. The connection male seat 14 and the connection female seat 15 are split designs.

[0054] The outer contour of the connecting male seat 14 matches the interior of the wire slot shell 2. The connecting male seat 14 is provided with an embedding chamber 16 with a square cross-section. One end of the embedding chamber 16 is open. Four plug-in male terminals 17 arranged side by side are provided at the bottom of the embedding chamber 16 opposite to the opening. At the same time, two mutually parallel guide grooves 18 are formed on the top inner wall of the embedding chamber 16. Shrapnel grooves 19 are provided on the inner walls on the left and right sides of the embedding chamber 16. The bottom of the shrapnel groove 19 is connected to the outside of the connecting male seat 14, and a male seat buckle block 20 is provided in the hole where the shrapnel groove 19 is connected to the outside of the connecting male seat 14. The male seat buckle block 20 can be buckled into the connecting hole 6 of the wire slot shell 2, buckled with the connecting hole 6 and axially slide along the busbar trunking body 1;

[0055] The connecting female seat 15 includes a connecting female seat body 21 whose outer contour matches the interior of the wire trough shell 2, and a female seat buckle block 22 is provided on the connecting female seat body 21, and the female seat buckle block 22 can be buckled into the connecting hole 6 of the wire trough shell 2, buckled with the connecting hole 6 and slide axially along the bus trough body 1; the connecting female seat body 21 extends toward one side of the connecting male seat 14 to form an engaging block 23 that can be embedded in the embedding chamber 16, and a guide strip 24 that matches the guide groove 18 is provided on the top of the engaging block 23, and spring pieces 25 are provided on the two opposite outer side walls of the embedding block 23, and the outer side wall where the spring piece 25 is located corresponds to the side wall position of the embedding chamber 16 where the spring piece 25 groove 19 is provided, and a raised edge 26 is formed on the spring piece 25; when the connecting female seat 15 and the connecting male seat 14 are inserted into each other, the spring piece 25 is placed in the spring piece 25 groove 19 and is buckled by the male seat. The block 20 is elastically squeezed, and the raised edge 26 of the spring 25 abuts against the male seat buckle block 20; a plurality of plug-in female terminals 27 matching the plug-in male terminal 17 are also provided in the connecting female seat 15, and the plug-in female terminal 27 is arranged in the connecting female seat 15 and penetrates the engaging block 23 and the connecting female seat body 21 along the axial direction of the plug-in male terminal 17, and the plug-in female terminal 27 includes a port block for wrapping the plug-in male terminal 17, and the port block is surrounded by a plurality of elastic electrical contact sheets 28, and a gap 29 is provided between adjacent elastic electrical contact sheets 28; in the non-plugged state, the inner diameter of the port block is smaller than the outer diameter of the plug-in male terminal 17; when the plug-in male terminal 17 and the plug-in female terminal 27 are docked with each other, the plug-in male terminal 17 will elastically push away the elastic electrical contact sheet 28 in the port block docked with it circumferentially to form an elastic interference fit.

[0056] In the present embodiment 1, an electric plug 30 is plugged into the bus duct, and an electric socket 31 matching with the electric plug 30 is installed inside the bus duct. The electric plug 1 is a three-phase four-wire plug, and is provided with four wire pins 32 and one ground pin 33, and the height of the ground pin 33 is higher than the height of the four wire pins 32.

[0057] The end of the electric plug 1 is provided with a guide hole 34 for guiding the moving direction of the plug buckle 37. The opening of the guide hole 34 faces the outside of the electric plug 30 and extends into the inside of the electric plug 30. A flange 35 extends from the bottom of the guide hole 34 to one side of the opening. The flange 35 encloses a spring mounting hole 36. A spring (not shown in the figure) as an elastic member is installed in the spring mounting hole 36. One end of the spring abuts against the bottom of the spring mounting hole 36, and the other end abuts against the plug buckle 37. The plug buckle 37 includes a plug buckle body 38 embedded in the guide hole 34. The outer contour of the plug buckle body 38 matches the outer contour of the guide hole 34. A spring mounting column 39 is provided in the plug buckle body 38 for fixing the position of the spring. A pressing portion 40 is formed on the outer side of the plug buckle 37 and extends toward the outer side of the guide hole 34. The pressing portion 40 is provided with an extrusion surface 41 perpendicular to the elastic force direction of the spring. The extrusion surface 41 is a plane so that the user can press the plug buckle 37. The plug buckle body 38 extends along the arrangement direction of the wire pins 32 to form a buckle block 42. The buckle block 42 is also located in the guide hole 34, and a guide slope 43 is provided on the buckle block 42 for guiding the buckle body to buckle into the plug buckle hole; the guide slope 43 is located on the side of the buckle block 42 away from the electric plug 30, and forms an acute angle with the plug buckle hole 45. At the same time, as shown in the figure, above the guide slope 43, an abutment surface 44 is formed on the buckle block 42 to abut against the bus duct body 1. The bottom of the wire duct shell 2, that is, the bottom of the bus duct body 1, is provided with a plug buckle hole 45 that cooperates with the plug buckle 37. When the electric plug 30 is docked with the electric socket 31, the plug buckle 37 forms a buckle connection with the plug buckle hole 45, so that the electric plug 30 is tightly connected with the bus duct body 1.

[0058] like Figures 13 to 17 As shown, the electrical socket 31 includes a seat body 46 with a square outer contour, which is composed of a base 47 and a bottom cover 48 in a split design. The bottom of the base 47 is connected to the bottom cover 48. Four electrical sockets 49 and one grounding socket 50 are arranged in an array, and the electrical sockets 49 and the grounding socket 50 are both provided with openings 51 at the top of the base 47 to allow the power line pins 32 and the ground line pins 33 to be inserted. A wire clip 52 serving as a female terminal of the wire is installed in each electrical socket 49. In addition, a positioning block 53 protruding from the seat body is provided at the top of the seat body 46. The cross section of the positioning block 53 is square, and the opening is arranged in the positioning block 53. The positioning block 53 can cooperate with the upper cover plate 3 to fix the position of the electrical socket.

[0059] In the first embodiment, the grounding hole 50 is close to the right side of the base 46 , and a mounting opening 54 is formed around the grounding hole 50 at one end of the grounding hole 50 facing the outside of the base 46 . A ground wire clip 55 for communicating with the ground wire is installed in the installation opening 54, and the ground wire clip 55 is composed of a ground wire clamp block 56 and a spring block 57 elastically connected to each other, wherein the ground wire clamp block 56 includes a main body 58, a connecting portion 59 and a buckle portion 60, one end of the main body 58 is elastically connected to the spring block 57, and the other end is connected to the connecting portion 59; one end of the connecting portion 59 is connected to the main body 58, and the other end is connected to the buckle portion 60; the buckle portion 60 and the main body 58 are staggered with each other and a gap is formed, and a swing through hole 61 is formed on the connecting portion 59 and the buckle portion 60; the spring block 57 is connected to one end of the ground wire clamp block 56 extending to the outside of the seat body 46 through the installation opening 54 and extending to one side of the swing base block 62, and the spring block 57 is provided with a buckle block 63 at one end farthest from the connection position between the ground wire clamp block 56 and the spring block 57. After the electrical socket is installed in the bus duct, the spring block 57 can be pressed and attached to the inner wall of the bus duct shell 2 by the grounding pin after the electrical plug 30 is inserted into the electrical socket 31, thereby forming a grounding design.

[0060] In the present embodiment 1, the seat body 46 is provided with a swing base block 62 located in the installation opening 54, and the swing base block 62 extends to the bottom of the seat body 46 to form a buckle block 64. The swing base block 62 penetrates the swing through hole 61, so that the ground wire clamp 55 can swing with the swing base block 62 relative to the seat body 46 in the installation opening 54, and the buckle block 64 is buckled with the buckle block 63, so that the ground wire clamp 55 as a whole has an elastic design for elastic recovery toward the grounding socket 50, ensuring that the ground wire clamp 55 can press the ground wire pin 33. In addition, a limit stopper 65 is also provided in the installation opening 54 to limit the swing amplitude of the ground wire clamp 56 and prevent the ground wire clamp 56 from falling off, and a clearance position 66 is provided on the spring piece block 57 at a position corresponding to the limit stopper 65 to ensure that the spring piece block 57 is not blocked by the limit stopper 65.

[0061] In addition, in the present embodiment 1, the base 47 is further provided with four wiring channels 67 that match the electrical sockets 49, and the bottom cover 48 is provided with four fixing protrusions 68, the distribution positions of the fixing protrusions 68 correspond to the wiring channels 67, and after the base 47 and the bottom cover 48 are covered, the fixing protrusions 68 are embedded in the wiring channels 67. In this way, the base 47 and the bottom cover 48 can be connected and fixed by the fixing protrusions 68 embedded in the wiring channels 67, which facilitates the assembly of the base 47 and the bottom cover 48.

[0062] In the first embodiment, one of the wire clips 52 in the electrical socket 31 is used to cooperate with the wires for signal transmission. Fig.18As shown, the wire clip 52 includes two clip pieces 69 for clipping the wire pins 32. The two clip pieces 69 are arranged opposite to each other, and a plurality of protrusions 70 are arranged on the inner wall of one of the clip pieces 69. In this way, after the wire pins 32 corresponding to the wires used for signal transmission are inserted into the wire clip 52, the protrusions 70 arranged on the inner wall of the clip piece 69 can cut the coating on the surface of the wire pins 32, so that the clip piece 69 can be directly connected with the inner metal layer of the wire pins 32, thereby ensuring the stability of signal transmission and avoiding the situation where signal transmission failure is caused by poor contact.

[0063] like Figure 2 As shown, the bus duct body 1 of the present bus duct is also provided with a wiring block 71 that allows the internal wires to be suspended in the bus duct body 1. The wiring block 71 is made of high temperature resistant insulating material, thereby avoiding direct contact between the wires and the bus duct.

[0064] This high temperature bus duct adopts a segmented design, and the length of each segment of the bus duct can be determined according to the actual needs of the user. Adjacent bus ducts are connected and fixed by the bus duct connecting seat 13, and the connecting male seat 14 and the connecting female seat body 21 can be embedded in the interior of the bus duct body 1. Because the outer contours of the connecting male seat 14 and the connecting female seat body 21 match the inner contour of the bus duct body 1, there is sufficient support between the mutually connected bus ducts, and because the buckle blocks of the connecting male seat 14 and the connecting female seat 15 are slidably connected in the connecting hole 6 of the bus duct body 1, the length of the connecting hole 6 is much larger than the thickness of the buckle block. The connected bus duct bodies 1 are usually connected by the embedded design of the connecting male seat 14 and the connecting female seat body 21. When the bus duct body 1 is heated and the adjacent bus duct bodies 1 expand to each other, the design of the connecting hole 6 can make the adjacent bus duct bodies 1 move away from each other by a distance and at the same time ensure that the buckle blocks of the bus duct connecting seat 13 are still buckled in the corresponding connecting hole 6, so that the adjacent bus duct bodies 1 remain connected to avoid failure at the connection.

[0065] like Figure 1 As shown, a bus duct clip 72 is also installed on the bus duct to fix the position of the bus duct. Figures 19 to 21 As shown, the wire slot buckle 72 includes a buckle body 73 and a stop block 74, wherein the buckle body 73 is composed of a first buckle edge 75, a second buckle edge 76 and a third buckle edge 77 of an integrated design, the first buckle edge 75, the second buckle edge 76 and the third buckle edge 77 are connected in sequence, and the first buckle edge 75 and the third buckle edge 77 are parallel to each other and perpendicular to the second buckle edge 76, so that the interior of the buckle body 73 is formed with an installation space 78 with a square cross-sectional profile.

[0066] In the present embodiment 1, an opening 79 communicating with the installation space 78 is provided on the buckle body 73 on one side of the square, and a first pressing edge 80 arranged along the other three sides of the square is provided on the buckle body 73 in the installation space 78. The three first pressing edges 80 are all vertically extended to the same side of the buckle body 73, that is, they extend outward perpendicularly to the buckle body 73. In addition, the first buckle edge 75, the second buckle edge 76 and the third buckle edge 77 are also extended to the same side to form a fixed edge 81, and the extension direction of each fixed edge 81 is the same as the extension direction of the first pressing edge 80, and each fixed edge 81 is provided with a mounting through hole 82. In addition, a buckle hole 83 is also provided on the buckle body 73 on the third buckle edge 77, and the buckle hole 83 is arranged close to the opening 79.

[0067] In the present embodiment 1, the stopper 74 is connected to the buckle body 73 by screw and nut cooperation, so that the stopper 74 can be turned over to open / close the opening 79 of the buckle body 73. A spring 84 as an elastic medium is also provided between the nut 13 and the buckle body 73 to lock the position of the nut and achieve locking. The stopper 74 is provided with a second pressing edge 85, which is arranged toward the installation space 78 and vertically extends toward the side of the buckle body 73. The extension direction of the second pressing edge 85 is the same as the extension direction of the first pressing edge 80. When the stopper 74 is closed at the opening 79, the second pressing edge 85 and the first pressing edge 80 enclose a wire slot hole 86 with a square cross-sectional profile. In addition, the stopper 74 is protruded toward one side of the buckle body 73 to form a protrusion 87, which corresponds to the position of the buckle hole 83 and can be embedded in the buckle hole 83. The protrusion 87 is embedded in the buckle hole 83 to lock the position of the stopper 74. The protrusion 87 can be directly formed on the stop block 74 by a processing technique such as stamping, which ensures the rigidity of the protrusion 87 and reduces the processing flow of the buckle.

[0068] The bus duct can enter the installation space 78 through the opening 79 provided on the buckle body 73. When the bus duct is placed in the installation space 78, since the cross-sectional profile of the installation hole is square, the bottom and side walls of the bus duct can be tightly fitted with the first pressing edge 80 of the buckle body 73, and after the stopper 74 is closed at the opening 79, the second pressing edge 85 provided on the stopper 74 can be pressed on the top cover of the bus duct to ensure that the four circumferential walls of the bus duct are clamped. In this way, even if the bus duct is deformed by heat, the top cover of the bus duct will be tightly pressed into the slot hole 86 to avoid the risk of falling off due to deformation.

[0069] Example 2

[0070] The difference between this embodiment 2 and embodiment 1 is that Fig. 22 , 23As shown, the wire duct buckle 72 of the second embodiment has a first buckle edge 75 and a third buckle edge 77 that are opposite to each other in the installation space 78, and each first pressing edge 80 is provided with a spring sheet 88, and the spring sheet 88 is located on the side of the first pressing edge 80 facing the installation space 78. When the bus duct is placed in the installation space 78, the spring sheet 88 can press the two side walls of the bus duct to assist in pressing the bus duct. In addition, as Figure 5 As shown, through the mounting through hole 82 provided on the fixed edge 81, the buckle can be combined and expanded, such as a combination of two buckles or a combination of four buckles, to adapt to bus ducts of different specifications.

[0071] This specification lists only the preferred embodiments of the present invention. All equivalent technical changes made under the working principle and concept of the present invention are deemed to be within the protection scope of the present invention.

Claims

1. A high temperature bus duct, characterized in that: The utility model comprises a plurality of bus duct bodies and a plurality of bus duct connection seats embedded in the bus duct bodies; the bus duct body is composed of a wire duct shell and an upper cover plate; the wire duct shell comprises a bottom panel and two side panels arranged vertically to the bottom panel; the bus duct body is provided with connection holes for buckling the bus duct connection seats, and the connection holes are respectively located at both ends of the side panels; the two side panels are provided with a cover plate plug-in slot extending toward the inner side of the wire duct shell; the cover plate plug-in slot comprises an upper slot eave and a lower slot eave, and the lower slot eave faces the wire duct The length of the inner side of the shell is greater than the upper trough eaves; the upper cover includes an upper cover body and a plug-in portion located on both sides of the upper cover body and having a thickness less than that of the upper cover body; the edge of the plug-in portion facing the wire trough shell side is an arc surface; the plug-in portion is embedded in the plug-in slot for installation and fixation; the bus trough connection seat includes a connecting male seat and a connecting female seat in a split design; a plurality of plug-in male terminals are arranged in the connecting male seat, a male seat buckle block is arranged on the connecting male seat, and a plurality of plug-in male terminals are arranged in the connecting female seat The female terminal is connected to the female seat, the female seat buckle block is provided on the female seat, the male seat buckle block and the female seat buckle block are both placed in the connecting hole and can slide along the axial direction of the bus duct body, the male seat buckle block and the female seat buckle block are respectively connected with the connecting hole buckle; the male seat is provided with an embedded chamber, and the plug-in male terminal is arranged at the bottom of the embedded chamber; the female seat is provided with an embedded block embedded in the embedded chamber, and the plug-in female terminal is arranged in the embedded block and along the axis of the plug-in male terminal The outer wall of the embedding block is provided with spring sheets, and the side wall of the embedding chamber corresponding to the outer wall position of the embedding block with the spring sheets is provided with a spring sheet groove, and the male seat buckle block is arranged on the side wall where the spring sheet groove is located and is connected to the inside of the spring sheet groove; a raised edge is also formed on the spring sheet; when the connecting female seat and the connecting male seat are inserted into each other, the spring sheet is placed in the spring sheet groove and is elastically squeezed by the male seat buckle block, and the raised edge of the spring sheet is against the male seat buckle block; The connecting male seat and the connecting female seat are fixed to each other by the elastic interference fit of the spring clip and the spring clip groove; the outer contour of the connecting male seat matches the interior of the wire trough shell, and a square-section embedding chamber is provided in the connecting male seat, one end of the embedding chamber is open, and the bottom of the embedding chamber opposite to the opening is provided with 4 plug-in male terminals arranged side by side, and at the same time, two mutually parallel guide grooves are formed on the top inner wall of the embedding chamber, and spring clip grooves are provided on the inner walls on the left and right sides of the embedding chamber. The bottom of the spring clip groove is connected to the outside of the connecting male seat, and a male seat buckle block is provided in the hole connected to the spring clip groove to the outside of the connecting male seat, and the male seat buckle block can be buckled into the connecting hole of the wire trough shell, buckled with the connecting hole and slide along the axial direction of the bus trough body; The connecting female seat comprises a connecting female seat body whose outer contour matches the interior of the wire trough shell, and a female seat buckle block is provided on the connecting female seat body, and the female seat buckle block can be buckled into the connecting hole of the wire trough shell, buckled with the connecting hole and slide axially along the bus trough body; the connecting female seat body extends toward one side of the connecting male seat to form an engaging block that can be embedded in the engaging chamber, a guide strip that matches the guide groove is provided on the top of the engaging block, and spring sheets are provided on the two opposite outer side walls of the engaging block, and the plug-in female terminal is arranged in the connecting female seat. The plug-in male terminal penetrates the engaging block and the connecting female seat body along the axial direction, and the plug-in female terminal includes a port block for wrapping the plug-in male terminal, and the port block is surrounded by a plurality of elastic electrical contact pieces, and gaps are provided between adjacent elastic electrical contact pieces; in a non-plugged state, the inner diameter of the port block is smaller than the outer diameter of the plug-in male terminal; when the plug-in male terminal and the plug-in female terminal are docked with each other, the plug-in male terminal elastically pushes the elastic electrical contact piece in the docked port block away circumferentially to form an elastic interference fit; Adjacent bus ducts are connected and fixed by a bus duct connecting seat. The length of the connecting hole is much larger than the thickness of the buckle block. When the bus duct body is heated and the adjacent bus duct bodies expand from each other, the connecting hole makes the adjacent bus duct bodies move away from each other by a distance and at the same time ensures that the buckle blocks of the bus duct connecting seat are still buckled in the corresponding connecting hole, so that the adjacent bus duct bodies remain connected.

2. A high temperature bus duct according to claim 1, characterized in that: The bus trough body is also provided with an electric plug, and the bus trough body is provided with an electric socket, and the electric plug and the electric socket cooperate with each other to achieve electrical connection; the electric plug is provided with a plug buckle facing the opposite side of the electric socket, and the bus trough body is provided with a plug buckle hole that cooperates with the plug buckle; when the electric plug is docked with the electric socket, the plug buckle and the plug buckle hole form a buckle connection.

3. A high temperature bus duct according to claim 2, characterized in that: The electric plug is provided with an electric wire pin connected to a power source and a ground wire pin connected to a ground wire, and the height of the ground wire pin is higher than the height of the electric wire pin.

4. A high temperature bus duct according to claim 3, characterized in that: The electrical socket is provided with a grounding female terminal for connecting a ground wire pin, and a spring sheet extends from one side of the grounding female terminal close to the side wall of the wire trough shell; when the ground wire pin is inserted into the grounding female terminal, the spring sheet abuts against the inner wall of the bus trough body to form grounding.

5. The high temperature bus duct according to claim 1, characterized in that: The bus duct body is provided with a wiring block which enables internal electric wires to be suspended and arranged in the bus duct body, and the wiring block is made of insulating material.

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