CN113580448A

CN113580448A - Bus duct improvement method, bus bar and groove body matching component and bus duct

Info

Publication number: CN113580448A
Application number: CN202111025305.4A
Authority: CN
Inventors: 谢峰; 孔德贵; 黄明华; 吴栋
Original assignee: Guangdong Huiheng Electric Technology Co ltd
Current assignee: Guangdong Huiheng Electric Technology Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2021-11-02
Anticipated expiration: 2041-09-02
Also published as: CN113580448B

Abstract

The invention discloses a bus duct improvement method, a bus bar and groove body matching component and a bus duct, wherein the bus duct improvement method comprises the following steps: when the groove body is poured, a first cavity and a second cavity which are large and small and used for accommodating the end part of the bus bar at the corresponding end are integrally formed at the two ends of the groove body respectively, so that when two bus ducts are butted, one end of one bus duct corresponding to the first cavity can be butted with one end of the other bus duct corresponding to the second cavity; before the trough body is poured, the ends of the bus bars at the two ends of the trough body are set to be in a matched state, and then the trough body is poured, so that when two bus ducts are butted, two buses in the same phase in the two butted bus bars are contacted. According to the invention, the end parts capable of being in butt joint in a matching way are formed at the two ends of the bus duct while the bus duct is formed, so that the construction cost and the material consumption cost are reduced during butt joint, the construction process is simplified, energy and energy consumption required by processing additional materials are saved, and the bus duct has the functions of energy conservation and environmental protection.

Description

Bus duct improvement method, bus bar and groove body matching component and bus duct

Technical Field

The invention relates to the technical field of power grid application equipment, in particular to a bus duct improvement method, a bus bar and groove body matching component and a bus duct.

Background

The bus duct is used as common equipment in the field of power grids and is widely applied to power distribution of the power grids, the conventional bus duct is divided into an air type bus duct and a pouring type bus duct, the pouring bus duct is formed by pouring high-performance insulating resin and various inorganic mineral substances, the bus duct is directly poured and sealed, the protection grade reaches IP68, and the novel metal shell-free bus duct has four protection functions of water resistance, fire resistance, corrosion resistance, explosion resistance and the like.

The generating line, pour type bus duct in the practical application in-process, need dock according to the construction scene, with the power distribution of the different distances of better cooperation, and current bus duct is at the butt joint in-process, need increase a connecting box that is used for holding the generating line row between two bus ducts of butt joint, make after the bus duct butt joint, the generating line row is located the connecting box, form an open enclosure in top between connecting box and two bus ducts, then it is fixed to arrange the generating line after the butt joint, directly pour the material into to the enclosure from the uncovered on top again, make two generating line rows directly pour sealedly, afterwards, it is fixed with the lid of connecting box again.

By the process and combine daily construction experience, the applicant discovers that the existing pouring type bus duct is in the butt joint process, the material cost is increased by using the connecting box, the construction process is increased, in addition, the contact surface formed between the connecting box and the bus duct after the connecting box and the bus duct are generally in a seamless mode through the sleeve, good pouring of pouring materials can be ensured, the pouring materials are prevented from being leaked from the contact position of the connecting box and the bus duct, high requirements on the processing precision and the construction difficulty of the connecting box are met, furthermore, the bus duct forms an outward convex surface in the butt joint position through the connecting box, particularly in pre-buried construction, the position and the size of the connecting box need to be considered, inconvenience is brought to construction, and therefore the bus duct needs to be improved urgently to solve the problems.

Disclosure of Invention

The invention aims to provide a bus duct improvement method, a bus bar and groove body matching component and a bus duct, wherein end parts capable of being in butt joint are formed at two ends of the bus duct while the bus duct is formed, so that additional consumables like a connecting box and the like are not needed during butt joint, the construction cost and the consumable cost are reduced, more importantly, the construction process is simplified, energy and energy consumption required by processing the additional consumables are saved, and the purposes of energy conservation and environmental protection are achieved by reducing the consumables.

In order to solve the technical problem, the invention provides a bus duct improvement method, wherein a first cavity and a second cavity which are large and small and are used for accommodating the end parts of bus bars at the corresponding ends are respectively and integrally formed at the two ends of a poured groove body, so that when two bus ducts are butted, one end of one bus duct corresponding to the first cavity can be butted with one end of the other bus duct corresponding to the second cavity, and when the two bus ducts are butted, the end part of the bus duct corresponding to the second cavity can be inserted into the end part of the bus duct corresponding to the first cavity to form an accommodating space;

before the trough body is poured, the ends of the bus bars at the two ends of the trough body are set to be in a matched state, and then the trough body is poured, so that when two bus ducts are butted, two buses in the same phase in the two butted bus bars are contacted;

in the process of forming the first cavity and the second cavity through pouring, a gas escape channel and a pouring material pouring channel which is correspondingly arranged are formed on the first cavity and the second cavity, after the two bus ducts are butted, the pouring material pouring channels on the first cavity and the second cavity are coincided, and the containing space formed by the two gas escape channels is communicated with the outside.

After the technical scheme is adopted, when the two bus ducts are butted, the end parts of the first cavity and the second cavity formed on the duct bodies are directly butted, so that a relatively closed accommodating space can be formed, then pouring materials are injected into the accommodating space through the pouring material pouring channel, the pouring materials combine the two bus bars butted with each other into a whole, and the connection and the fixation between the two bus ducts are realized, so that the butting of the bus ducts are very convenient, the first cavity, the second cavity and the duct bodies are integrally formed at the end parts of the first cavity, the second cavity and the duct bodies, and the pouring of the butted bus bars can be realized without adopting other sealing pieces, so that the construction cost is greatly reduced, the consumable materials are saved, the energy and the energy consumption for processing other matching consumable materials are directly saved, the energy-saving and environment-friendly effects are achieved, meanwhile, the structure is simpler, the stability is stronger, and the popularization value is realized.

Preferably, after the two bus ducts are butted, pouring materials are poured into the accommodating space through the pouring material pouring channel, and gas in the accommodating space is discharged out of the accommodating space through the gas escape channel.

After the technical scheme of the invention is adopted, when the pouring material is poured into the accommodating space to cover the butted busbar, the air in the accommodating space can be effectively discharged in the process that the pouring material enters the accommodating space, the coverage rate of the pouring material on the busbar is reduced, air bubbles are reduced, the pouring effect is improved, and meanwhile, the whole structure has better safety and stability.

Preferably, the pouring material pouring channel and the gas escape channel are respectively arranged on two opposite side surfaces of the bus duct.

After the technical scheme of the invention is adopted, when the pouring material is poured into the accommodating space to cover the butted busbar, the pouring material is poured from one side of the accommodating space, and the air in the accommodating space is discharged from the other side, so that the fluency and the escape rate of the air escaping from the accommodating space are improved, the bubble content of the pouring material in the accommodating space is further reduced, and the pouring effect, the overall safety and the stability are improved.

A bus bar and groove body matching component is combined with any bus bar groove improvement method, and comprises a first butt joint part and a second butt joint part which are formed at two ends of a groove body, wherein cavities of the first butt joint part and the second butt joint part are respectively a first cavity and a second cavity, a pouring material pouring channel is a pouring material inlet which is formed in the first butt joint part and the second butt joint part, and a gas escape channel is a gas outlet which is formed in the first butt joint part and the second butt joint part.

After the technical scheme of the invention is adopted, when two bus ducts are butted, the second butt joint part is directly inserted into the first butt joint part, the second butt joint part is butted with the bus bar in the first butt joint part, meanwhile, the two butted bus bars are positioned in the accommodating space, at the moment, the pouring material is directly poured into the accommodating space through the pouring material inlet, and the two butted bus bars are poured into a whole, so that the butt joint of the two bus ducts can be completed, the butt joint of the bus ducts is more convenient and faster, the construction cost is low, the material consumption and the energy consumption cost are reduced, and the invention has the advantages of environmental protection and energy saving.

Preferably, the inner wall of the first butt joint part and the surface of the second butt joint part are provided with adaptive calibration guide assemblies for calibrating and guiding the second butt joint part when the second butt joint part is inserted into the first butt joint part.

After the technical scheme of the invention is adopted, when the second butt joint part is inserted into the first butt joint part for butt joint, the butt joint efficiency and the butt joint effect are improved on one hand through the matching of the calibration guide assemblies, and on the other hand, after the second butt joint part is contacted with the first butt joint part, the bus bars cannot be directly penetrated from the outside, so that the effective matching between the two bus bars can be ensured by directly utilizing the matching of the calibration guide assemblies.

Preferably, the power supply further comprises an insulator fixed on the side surface of the bus bar, and the insulator is respectively positioned on the opposite surfaces of the two bus bars corresponding to the two bus bars which are in the same phase and are arranged at the two ends of the groove body.

After the technical scheme of the invention is adopted, in the butt joint process, one side surface without the insulator between the two same-phase buses is contacted with each other to form electric conduction, and after the butt joint, the opposite side surfaces are provided with the insulators, so that the insulation and the separation of the buses of other adjacent phases are realized, and the insulation performance is improved.

Preferably, the butt joint pressing assembly further comprises a butt joint pressing assembly, the butt joint pressing assembly comprises a positioning portion formed by extending at least one side of the insulator outwards compared with the width direction of the bus, the positioning portion is provided with a positioning hole for the positioning rod to penetrate through, the positioning rod is provided with a pair of pressing portions corresponding to the two buses which are in contact with each other, a pressing space for accommodating the two buses and the insulator on the two buses is formed between the pair of pressing portions through interval arrangement, the positioning hole comprises a first hole body portion for the positioning rod to pass through and a second hole body portion for the pressing portions to pass through, the pressing portions and the second hole body portions corresponding to the pressing portions can be staggered in the circumferential direction through rotating the positioning rod, a pair of threads with opposite rotation directions are arranged on each pair of pressing portions on the rod body, the positioning portion is in threaded fit with the rod body, and a pressing blocking body is arranged on the insulator and used for limiting the pressing portions after the pressing portions are staggered with the second hole body portions corresponding to the rod body portions through rotation of the rod body, and one side of the first butt joint part and one side of the second butt joint part are provided with insertion holes for inserting the rod body and the pressing part into the accommodating space.

By adopting the technical scheme of the invention, after the two bus bars are butted, the positioning rods in the butting and pressing assembly are inserted into the accommodating space from the insertion holes and sequentially penetrate through the positioning holes on the insulators, so that a pair of pressing parts are respectively positioned at two sides of each two butted bus bars, and then the positioning rods are rotated to enable each pair of positioning holes to be close to each other, so that the butted bus bars are respectively pressed from two sides, the butted bus bars are fixed, and meanwhile, the pre-fixing of the butted bus bars is realized.

Preferably, the insertion hole is provided with an insertion hole cover which is in threaded fit with the insertion hole. After the butt joint compressing assembly realizes the pre-fixing of the busbar, the inserting hole is sealed by the inserting hole cover, and then the pouring material is injected into the accommodating space, so that the pouring material is prevented from leaving the accommodating space from the inserting hole, and an effective guarantee is provided for pouring of the accommodating space.

Preferably, the buses positioned on the same side of the tank body are distributed in a vertically staggered manner along the width direction of the tank body;

and after the first docking portion is docked with the second docking portion: the top end of the bus with a high height is in seamless contact with the inner wall of the top of the accommodating space, the bottom end of the bus with a low height is in seamless contact with the inner wall of the bottom of the accommodating space, at least one of the two buses positioned on the outermost side is a bus with a low height, the pouring material inlet is positioned between the bus with the lower height on the outermost side and the inner wall of the side of the accommodating space, and the gas outlet is positioned between the bus on the other outermost side and the inner wall of the side of the accommodating space compared with the pouring material inlet.

By adopting the technical scheme, when the pouring material is poured into the accommodating space, the pouring material gradually fills the whole accommodating space from bottom to top from the bottom of one side of the accommodating space, so that the gas can escape from the accommodating space, meanwhile, the butted busbar is covered by the pouring material fully, and the pouring efficiency and effect are further improved.

A bus duct comprises any one of the bus bar matching parts, a groove body and a bus bar.

By adopting the technical scheme, the formed bus duct is more beneficial to subsequent butt joint and pouring treatment of the butt-jointed bus bar, the construction efficiency and the construction effect are improved, meanwhile, the construction cost and the material consumption cost are reduced, energy and energy consumption required by material consumption processing are avoided, and the energy-saving and environment-friendly bus duct is more energy-saving.

Drawings

Fig. 1 is a schematic diagram of a bus duct of the present invention.

Fig. 2 is a schematic diagram of bus bars at two ends of the bus duct of the invention.

FIG. 3 is an enlarged view of portion A of FIG. 2 according to the present invention.

Fig. 4 is a schematic view of the compressing part of the present invention.

Fig. 5 is a schematic diagram of the two bus ducts of the invention after being butted.

Fig. 6 is a schematic view of the butt joint of two bus duct bus bars.

FIG. 7 is an enlarged view of portion B of FIG. 6 according to the present invention.

FIG. 8 is a schematic view of the compression portion of the present invention engaged with a compression stop.

FIG. 9 is a schematic view of the positioning rod and the pressing portion of the present invention.

Fig. 10 is a schematic view of a castable inlet in a first mating portion according to the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Aiming at the problems that in the prior art, when a poured bus duct is butted, a bus bar needs to be wrapped by a connecting box body after being butted, then pouring materials are directly injected into the bus bar from an opening at the top end of the connecting box to realize pouring, after pouring is finished, a box cover of the connecting box is mounted, the whole process is very complicated, the connecting box is used as one of butted consumable materials, the butted cost of the bus duct is increased, the butted construction of the bus duct is complicated, meanwhile, the matching degree between the connecting box and the bus duct can influence the pouring effect, and the processing difficulty and the processing cost are increased for enabling the connecting box to be well matched with the bus duct, the invention provides an improvement method of the bus duct, aiming at improving the bus duct forming process directly to enable the improved bus duct to play a good role in subsequent butting, simplifying the butted construction process, The butt joint construction cost and the construction difficulty are reduced, the material consumption cost of the connecting box and the like is saved, the energy consumption required by the processing of the connecting box is reduced, the butt joint structure is more energy-saving and environment-friendly, in addition, the integral structure is simplified, and the effect is remarkable.

The bus duct improvement method mainly comprises the following steps: when the groove bodies are poured, a first cavity and a second cavity which are large and small and used for accommodating the end parts of the bus bar rows at the corresponding ends are respectively and integrally formed at the two ends of the groove bodies, so that when the two bus ducts are butted, one end of one bus duct corresponding to the first cavity can be butted with one end of the other bus duct corresponding to the second cavity, and when the two bus ducts are butted, the end part of the bus duct corresponding to the second cavity can be inserted into the end part of the bus duct corresponding to the first cavity to form an accommodating space, and the accommodating space is formed to directly replace a connecting box and a box cover in the prior art The service life is longer, and the reliability is higher;

before the trough body is poured, the ends of the bus bars at the two ends of the trough body are set to be in a matched state, and then the trough body is poured, so that when two bus ducts are butted, two same-phase buses in the two butted bus bars are contacted, and effective butt joint matching is also formed between the two butted bus bars while an accommodating space is formed in the butt joint;

After the two bus ducts are butted, pouring materials are poured into the accommodating space through the pouring material pouring channel, and gas in the accommodating space is discharged out of the accommodating space through the gas escape channel.

And respectively arranging a pouring material pouring channel and a gas escape channel on two opposite side surfaces of the bus duct.

As shown in fig. 1 to 10, in combination with any one of the above bus duct improvement methods, the present invention further provides a bus bar and trough body matching component, which includes a first butt joint portion 1 and a second butt joint portion 2 formed at two ends of the trough body, wherein the cavities of the first butt joint portion 1 and the second butt joint portion 2 are a first cavity and a second cavity, respectively, the casting material casting channel is a casting material inlet 3 opened on the first butt joint portion 1 and the second butt joint portion 2, and the gas escape channel is a gas outlet 4 opened on the first butt joint portion 1 and the second butt joint portion 2.

After the technical scheme of the invention is adopted, when two bus ducts are butted, the second butt joint part 2 is directly inserted into the first butt joint part 1, the second butt joint part 2 is butted with the bus bars in the first butt joint part 1, meanwhile, the two butted bus bars are positioned in the accommodating space, at the moment, the castable is directly poured into the accommodating space through the castable inlet 3, and the two butted bus bars are poured into a whole, so that the butt joint of the two bus ducts can be completed, the butt joint of the bus ducts is more convenient and quicker, the construction cost is low, the consumable and energy consumption costs are reduced, and the invention has the advantages of environmental protection and energy saving.

Referring to fig. 1, 5 and 10, a calibration guide assembly 5 is disposed on an inner wall of the first docking portion 1 and a surface of the second docking portion 2, and is adapted to calibrate and guide the second docking portion 2 when inserted into the first docking portion 1, specifically, the calibration guide assembly 5 includes a guide groove and a guide block, the guide groove is disposed on the first docking portion 1 or the second docking portion 2, and the guide block is disposed on the second docking portion 2 or the first docking portion 1, when two bus ducts are docked, the second docking portion 2 can be directly inserted into the first docking portion 1 by aligning the guide block and the guide, and the docking is completed.

After the technical scheme of the invention is adopted, when the second butt joint part 2 is inserted into the first butt joint part 1 for butt joint, the butt joint efficiency and the butt joint effect are improved through the matching of the calibration guide assemblies 5, and on the other hand, after the second butt joint part 2 is contacted with the first butt joint part 1, the bus bars cannot be directly penetrated from the outside, so that the effective matching between the two bus bars can be ensured by directly utilizing the matching of the calibration guide assemblies 5.

Referring to fig. 1 and 2, the bus bar further includes an insulator 6 fixed on a side surface of the bus bar, and the insulator 6 is located on opposite surfaces of two bus bars corresponding to two ends of the slot and being in the same phase.

After the technical scheme of the invention is adopted, in the butt joint process, one side surface without the insulator 6 between two same-phase buses is mutually contacted to form electric conduction, and after the butt joint, the opposite side surface is provided with the insulator 6, so that the bus insulation and the isolation of other adjacent buses are realized, and the insulation performance is improved.

Referring to fig. 6 to 9, the docking and compressing assembly 7 further includes a positioning portion 71 formed by extending at least one side of the insulator 6 outward relative to the width direction of the bus bar, the positioning portion 71 is provided with a positioning hole 72 for passing the positioning rod 73, the positioning rod 73 is provided with a pair of compressing portions 74 corresponding to two bus bars in contact, a compressing space for accommodating the two bus bars and the insulator 6 thereon is formed between the pair of compressing portions 74 through a gap, the positioning hole 72 includes a first hole portion for passing the positioning rod 73 and a second hole portion for passing the compressing portions 74, the compressing portions 74 and the corresponding second hole portions can be dislocated in the circumferential direction by rotating the positioning rod 73, wherein a pair of threads with opposite rotation directions are provided on each pair of compressing portions 74 on the rod body, the positioning portion 71 is in threaded engagement with the rod body, specifically, the compressing portions 74 include annular portions with internal threads, the annular part is in threaded connection with the positioning rod 73, the annular part further comprises a strip part fixed on the outer side of the annular part, the annular part is matched with the first hole body part, the strip part is matched with the second hole body part, the pressing part 74 can pass through the positioning hole 72, the insulator 6 is provided with a pressing blocking body 75 used for limiting the pressing part 74 after dislocation of the second hole body part corresponding to the pressing part through rotation of the rod body, one side of the first butt joint part 1 and one side of the second butt joint part 2 are provided with insertion holes 76 used for inserting the rod body and the pressing part 74 into the accommodating space, in the operation process, the pressing rod and the pressing part 74 directly penetrate through the insulator 6 through the positioning hole 72, two buses corresponding to the same phase and mutual contact are provided with a pair of pressing parts 74 which are respectively positioned on two sides of the pressing part, then, the positioning rod 73 is rotated, the positioning rod 73 drives the pressing parts 74 to synchronously rotate until the pressing part 74 contacts the pressing blocking body 75, the positioning rod 73 is rotated continuously, the pressing parts 74 cannot rotate continuously, and then through the threaded fit between the pressing parts 74 and the positioning rod 73, each pair of pressing parts 74 can move relatively, in the process, two buses which are in the same phase and mutually contacted are pressed and fixed from two sides respectively, the pre-fixing of the bus bar after butt joint can be realized, meanwhile, the pre-fixing of the groove body is also realized, it needs to be explained that along the insertion direction of the positioning rod 73, a limiting groove for inserting the end part of the positioning rod 73 is arranged on the inner wall of the accommodating space corresponding to the front part of the positioning rod 73, specifically, the limiting groove is arranged on the inner side wall of the second butt joint part 2, meanwhile, in the process of processing the bus duct, the length of the positioning rod 73, the distance between the pressing parts 74 and the sizes of various components for realizing the function are designed in advance, so that after the end part of the positioning rod 73 is inserted into the limiting groove, that is, it means that the positioning rod 73 is completely inserted into the accommodating space, and at this time, both sides of two in-phase bus bars that are in contact are matched with the distance between the pressing portions 74 of the corresponding sides, and in addition, the outer side end of the positioning rod 73 is provided with a hexagonal wrench connecting portion for a hexagonal wrench to be inserted through the insertion hole 76 and matched with the hexagonal wrench connecting portion of the positioning rod 73 so as to rotate the positioning rod 73, and meanwhile, the diameter of the insertion hole 76 is greater than or equal to the longest dimension in the radial direction of the pressing portions 74.

By adopting the technical scheme of the invention, after the two bus bars are butted, the positioning rods 73 in the butting and pressing assembly 7 are inserted into the accommodating space from the insertion holes 76 and sequentially penetrate through the positioning holes 72 on the insulators 6, so that a pair of pressing parts 74 are respectively positioned at two sides of each two butted bus bars, and then the positioning rods 73 are rotated to enable each pair of positioning holes 72 to be close to each other, so that the butted bus bars are pressed from two sides respectively, the butted bus bars are fixed, and meanwhile, the pre-fixing of the butted bus bars is realized.

Referring to fig. 1 and 10, the insertion hole 76 is provided with an insertion hole cover 77 that is screwed into the insertion hole 76. After the butt joint compressing assembly 7 realizes the pre-fixing of the busbar, the inserting hole 76 is sealed by the inserting hole cover 77, and then the pouring material is injected into the accommodating space, so that the pouring material is prevented from leaving the accommodating space from the inserting hole 76, and an effective guarantee is provided for the pouring of the accommodating space.

Referring to fig. 1, 2 and 10, the busbars on the same side of the tank are distributed in a vertically staggered manner along the width direction of the tank;

and after the first docking portion 1 is docked with the second docking portion 2: specifically, in the bus bar in contact with the inner wall of the accommodating space, a space is provided between the bus bar corresponding to the first butt joint part 1 and the corresponding side surface of the first butt joint part 1, the space is used for inserting the second butt joint part 2 into the first butt joint part 1, and after the second butt joint part 2 is inserted, the part of the bus bar in the first butt joint part 1 is in contact with the inner wall of the second butt joint part 2, it is noted that, in order to improve the insulation performance and the safety, another insulator 6 is fixed on the bus bar in contact with the inner wall of the accommodating space, or another insulator 6 is directly arranged on the inner wall of the accommodating space for contacting the bus bar, the insulator 6 is used for replacing the bus bar to directly contact with the inner wall of the accommodating space, it is noted that, when the bus bar is contacted with the inner side wall of the accommodating space through another insulator 6, the another insulator 6 can be directly formed through the insulator 6, at least one of the two bus bars positioned at the outermost side is a bus bar with a lower height, the castable inlet 3 is positioned between the outermost bus bar with the lower height and the inner side wall of the accommodating space, and the gas outlet 4 is positioned between the other outermost bus bar and the inner side wall of the accommodating space compared with the castable inlet 3.

Referring to fig. 1 and 10, in combination with the bus bar and groove body matching component, the invention also provides a bus duct, which includes a groove body and a bus bar, and the bus bar and groove body matching component is arranged on the groove body.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A bus duct improvement method is characterized in that:

when the groove bodies are poured, a first cavity and a second cavity which are large and small and used for accommodating the end parts of the bus bar rows at the corresponding ends are integrally formed at the two ends of the groove bodies respectively, so that when the two bus ducts are butted, one end of one bus duct corresponding to the first cavity can be butted with one end of the other bus duct corresponding to the second cavity, and when the two bus ducts are butted, the end part of the bus duct corresponding to the second cavity can be inserted into the end part of the bus duct corresponding to the first cavity to form an accommodating space;

2. The improvement method of the bus duct according to claim 1, wherein: after the two bus ducts are butted, pouring materials are poured into the accommodating space through the pouring material pouring channel, and gas in the accommodating space is discharged out of the accommodating space through the gas escape channel.

3. The improvement method of the bus duct according to claim 1, wherein: and respectively arranging a pouring material pouring channel and a gas escape channel on two opposite side surfaces of the bus duct.

4. A busbar and groove body matching part, which is combined with the bus duct improvement method of any one of the preceding claims 1 to 3, and is characterized in that the matching part comprises a first butt joint part and a second butt joint part formed at two ends of the groove body, wherein the cavities of the first butt joint part and the second butt joint part are respectively a first cavity and a second cavity, the pouring material pouring channel is a pouring material inlet arranged on the first butt joint part and the second butt joint part, and the gas escape channel is a gas outlet arranged on the first butt joint part and the second butt joint part.

5. The bus bar mating part of claim 4, wherein: the inner wall of the first butt joint part and the surface of the second butt joint part are provided with adaptive calibration guide assemblies for calibrating and guiding the second butt joint part when the second butt joint part is inserted into the first butt joint part.

6. The bus bar mating member according to claim 4, further comprising an insulator secured to a side of the bus bar and corresponding between the bus bars at opposite ends of the housing, the insulator being on opposite surfaces of the bus bars.

7. The busbar fitting component according to claim 6, further comprising a butt-joint pressing assembly including a positioning portion formed by extending the insulator outward from at least one side of the busbar in the width direction, the positioning portion having a positioning hole for the positioning rod to pass through, the positioning rod having a pair of pressing portions corresponding to two contacting busbars, the pair of pressing portions forming a pressing space for accommodating the two busbars and the insulator thereon by being spaced apart from each other, the positioning hole including a first hole portion for the positioning rod to pass through and a second hole portion for the pressing portions to pass through, the pressing portions being circumferentially misaligned with the corresponding second hole portions by rotating the positioning rod, wherein a pair of threads having opposite rotation directions are provided on the rod body corresponding to each pair of pressing portions, the positioning portion is screw-fitted to the rod body, and the insulator has a pressing stopper, the pressing portion is used for limiting the pressing portion after the second hole body portion corresponding to the pressing portion is dislocated through rotation of the rod body, and an insertion hole used for inserting the rod body and the pressing portion into the accommodating space is formed in one side of the first butt joint portion and one side of the second butt joint portion.

8. The busbar mating member according to claim 7, wherein said insertion hole is provided with an insertion hole cover threadedly engaged with the insertion hole.

9. The busbar fitting component according to claim 4, wherein the busbars on the same side of the groove body are distributed in a vertically staggered manner in the width direction of the groove body;

10. A bus duct comprising the bus bar fitting member as set forth in any one of claims 4 to 9, and a groove body and a bus bar.