Bus duct with telescopic compensation structure and use method

Abstract

The invention relates to the field of power transmission, in particular to a bus duct with a telescopic compensation structure and a use method.The bus duct comprises a bus duct bottom plate, a bus duct shell is installed at the top of the bus duct bottom plate, a copper bar fixing base is arranged in the middle of the top face of the bus duct bottom plate, and a plurality of sets of copper bar sleeves are arranged in the copper bar fixing base; a plurality of sets of telescopic connecting rods are arranged at the corners of the two sides of the copper bar fixing base, a buffer spring is arranged at the center of the side face of the copper bar fixing base, the tail end of the conductive copper bar is connected with a soft copper telescopic joint, and a supporting mechanism is arranged at the bottom of the soft copper telescopic joint; through a buffer structure formed by the copper bar fixing base, the telescopic connecting rod and the buffer spring, external force borne by the conductive copper bar is buffered when the bus duct is subjected to transverse vibration, the vibration influence borne by the conductive copper bar is reduced, and the conductive copper bar is prevented from being distorted and damaged due to the transverse acting force.

Description

Technical Field

[0001] The present invention relates to the field of power transmission, and in particular to a bus duct with a telescopic compensation structure and a use method thereof. Background Art

[0002] A bus duct is a closed metal device composed of copper and aluminum busbars, used to distribute high power to various components in a distributed system. During operation, the bus duct undergoes thermal expansion due to current load and ambient temperature changes. Therefore, a telescopic structure is usually installed inside the bus duct to compensate for thermal expansion and contraction as needed. Traditional telescopic structures are usually composed of single-layer bellows or overlap structures. When working, the bellows or telescopic structures can only compensate for axial expansion and contraction to prevent the bus duct from twisting or cracking due to thermal stress. They cannot effectively absorb radial displacement caused by lateral vibration or foundation settlement, causing the conductive wires in the bus duct to twist and deform under the continuous stress caused by vibration, which can easily cause the conductor connection points to loosen. In order to reduce the impact of lateral vibration on the bus duct, a bus duct with a telescopic compensation structure and a method for use are proposed. Summary of the Invention

[0003] In order to solve the technical problems existing in the above-mentioned prior art, the present invention provides a bus duct with a telescopic compensation structure and a method of use.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a bus duct with a telescopic compensation structure, comprising a bus duct bottom plate, a bus duct shell is installed on the top of the bus duct bottom plate, a copper busbar fixing base is arranged in the middle position of the top surface of the bus duct bottom plate, several groups of copper busbar sleeves are arranged inside the copper busbar fixing base, and conductive copper buses are inserted into the copper busbar sleeves, several groups of telescopic connecting rods are arranged at the corners on both sides of the copper busbar fixing base, a buffer spring is arranged at the center position of the side of the copper busbar fixing base, the end of the conductive copper busbar is connected to a soft copper telescopic joint, and a support mechanism is arranged at the bottom of the soft copper telescopic joint.

[0005] Preferably, the bus duct housing includes housing side panels and a housing top panel, two groups of the housing side panels are respectively arranged at edge positions on both sides of the top of the bus duct bottom panel, and the housing top panel is arranged on the top of the housing side panels.

[0006] Preferably, the copper busbar fixing base includes a base bottom plate, a base side plate, a sleeve slide, a connecting block, a strip connecting groove and a base top cover, the base bottom plate is placed on the top surface of the busbar bottom plate, several groups of the base side plates are vertically arranged on the top of the base bottom plate, the middle of two adjacent groups of the base side plates are arranged with a sleeve slide, the connecting blocks are arranged at both ends of the base bottom plate, the strip connecting groove is opened at the top of the base bottom plate, the base top cover is connected to the top of the base side plate by a pin, the copper busbar sleeve is placed inside the sleeve slide, and the top surface of the sleeve slide is abutted against the bottom surface of the raised block at the bottom of the base top cover.

[0007] Preferably, the telescopic connecting rod includes a connecting rod and a connecting sleeve, the connecting rod is connected to the outer corner of the base side panel, one end of the connecting sleeve is sleeved on the end of the connecting rod, and the other end of the connecting sleeve is connected to the inner side of the shell side panel by a bolt.

[0008] Preferably, one end of the buffer spring is sleeved on the raised block on the outer side of the base side plate, and the other end of the buffer spring is sleeved on the raised block on the inner side of the shell side plate.

[0009] Preferably, the soft copper expansion joint includes a connecting plate and an arc-shaped soft copper plate, the connecting plate is connected to the end of the conductive copper bar by bolts, and the arc-shaped soft copper plate is arranged at the end of the connecting plate.

[0010] Preferably, the support mechanism includes a fixing plate, a blocking plate and a reset mechanism, the fixing plate is fixed to the end position of the copper busbar fixing base by bolts, several groups of the blocking plates are vertically arranged on the top of the fixing plate, and the reset mechanism is arranged on the side of the blocking plate.

[0011] Preferably, the reset mechanism includes a limit pin and a reset top block, the limit pin is inserted into a through hole provided on the blocking plate, and the reset top block is fixed to the end of the limit pin.

[0012] Preferably, a reset spring is sleeved on the exterior of the limit pin, and the reset spring is located between the blocking plate and the reset top block.

[0013] A method for using a bus duct with a telescopic compensation structure comprises the following steps: Step S1: Place the copper bar fixing base on the top surface of the bus duct bottom plate, insert the bolts through the through holes opened on the bus duct bottom plate and connect them to the strip-shaped connecting grooves; Step S2: Install nuts on the bolts to connect the connection block to the bus duct bottom plate, and adjust the tightness of the bolts and nuts to enable the connection block to move under the action of the bolts and the strip-shaped connection grooves; Step S3, sleeve the connecting sleeve onto the end of the connecting rod; Step S4, sleeve the buffer spring onto the raised block on the outer side of the base side plate; Step S5: Install the housing side panels at the edges of both sides of the top surface of the bus duct bottom plate so that the ends of the buffer springs are sleeved onto the raised blocks on the inner sides of the housing side panels; Step S6, inserting a bolt through the side panel of the housing and connecting the end of the connecting sleeve to fix the end of the connecting sleeve to the inner side of the side panel of the housing; Step S7, sleeve the copper busbar sleeve onto the outside of the conductive copper busbar; Step S8, placing the copper busbar sleeve together with the conductive copper busbar inside the sleeve chute; Step S9: Cover the top cover of the base on the top of the copper busbar sleeve, so that the top cover of the base is plugged into the top of the side plate of the base through the latch at the bottom; Step S10, sleeve the return spring onto the outside of the limit pin; Step S11, inserting the limit pin into the blocking plate so that both ends of the reset spring abut against the inner side surfaces of the blocking plate and the reset top block respectively; Step S12: Fix the fixing plate to the top of the bus duct bottom plate with bolts so that the supporting mechanism is located at the end of the copper bar fixing base; Step S13, placing the soft copper expansion joint inside the support mechanism so that the arc-shaped soft copper plate is placed between two adjacent sets of blocking plates and the reset top block; Step S14, connecting the connecting plate to the end of the conductive copper busbar by means of bolts and nuts; Step S15: fix the housing top plate to the top of the housing side plate, and install the bus duct bottom plate to the cable connection position with bolts; Step S16, connecting the conductive copper busbar to the circuit to complete the overall installation of the bus duct structure; Step S17: When in use, the curved soft copper plate can expand and contract axially when subjected to force, thereby compensating for the deformation of the conductive copper busbar caused by thermal expansion during operation, thereby preventing the conductive copper busbar from being twisted and cracked due to the thermal stress in the axial direction; Step S18: When the bus duct is subjected to lateral vibration, the copper busbar fixing base moves laterally inside the housing side plate under the action of the telescopic connecting rod, and the buffer spring is elastically deformed under the force to reduce the lateral vibration of the copper busbar fixing base.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention provides a busbar duct bottom plate, a busbar duct shell is installed on the top of the busbar duct bottom plate, a copper bar fixing base is provided in the middle position of the top surface of the busbar duct bottom plate, a plurality of copper bar bushings are provided inside the copper bar fixing base, a conductive copper bar is inserted inside the copper bar bushings, a plurality of telescopic connecting rods are provided at the corner positions on both sides of the copper bar fixing base, a buffer spring is provided at the center position of the side of the copper bar fixing base, a soft copper expansion joint is connected to the end of the conductive copper bar, and a supporting mechanism is provided at the bottom of the soft copper expansion joint, the conductive copper bar is installed inside the copper bar fixing base through the copper bar bushing, and a buffer structure composed of the copper bar fixing base, the telescopic connecting rod and the buffer spring buffers the external force exerted on the conductive copper bar when the busbar is subjected to lateral vibration, reduces the vibration influence exerted on the conductive copper bar, and prevents the conductive copper bar from being twisted and damaged due to the lateral force, and supports the soft copper expansion joint by the supporting mechanism to prevent the soft copper expansion joint from being deformed when subjected to vibration, and prevents the connection between the conductive copper bar and the soft copper expansion joint from being loosened under the influence of vibration; 2. The present invention also provides a reset mechanism, which includes a limit pin, a reset top block and a reset spring. The limit pin is inserted into a through hole provided on the blocking plate, the reset top block is fixed to the end of the limit pin, and the reset spring is sleeved on the outside of the limit pin. The reset top block supports the side of the arc-shaped soft copper plate through the action of the reset spring. The force of the reset top block enables the arc-shaped soft copper plate to restore its original curvature when it is not subjected to tension, so that the arc-shaped soft copper plate can continue to operate stably for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 Schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the internal top view structure of the present invention; Figure 4 It is a schematic diagram of a partially expanded structure of the present invention; Figure 5 This is a schematic diagram of the expanded structure of the copper busbar fixing base of the present invention; Figure 6 It is a schematic structural diagram of the reset mechanism of the present invention; Figure 7 This is a schematic diagram of the expanded structure of the soft copper expansion joint of the present invention; Figure 8 This is a schematic diagram of the expanded structure of the reset mechanism of the present invention.

[0016] Figure numerals: 1. bus duct bottom plate; 2. bus duct shell; 21. shell side plate; 22. shell top plate; 3. copper busbar fixing base; 31. base bottom plate; 32. base side plate; 33. sleeve slide groove; 34. connecting block; 35. strip connecting groove; 36. base top cover; 4. copper busbar sleeve; 5. conductive copper busbar; 6. telescopic connecting rod; 61. connecting rod; 62. connecting sleeve; 7. buffer spring; 8. soft copper expansion joint; 81. connecting plate; 82. arc-shaped soft copper plate; 9. supporting mechanism; 91. fixing plate; 92. blocking plate; 93. reset mechanism; 931. limit pin; 932. reset top block; 933. reset spring. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein the above and other technical features and advantages of the present invention are further described. However, the following embodiments are merely preferred embodiments of the present invention and are not exhaustive.

[0018] Example: like Figure 1 - Figure 8 As shown, the present invention provides a bus duct with a telescopic compensation structure, including a bus duct bottom plate 1, a bus duct shell 2 is installed on the top of the bus duct bottom plate 1, a copper busbar fixing base 3 is provided at the middle position of the top surface of the bus duct bottom plate 1, a plurality of groups of copper busbar sleeves 4 are provided inside the copper busbar fixing base 3, a conductive copper busbar 5 is inserted inside the copper busbar sleeve 4, a plurality of groups of telescopic connecting rods 6 are provided at the corner positions on both sides of the copper busbar fixing base 3, a buffer spring 7 is provided at the center position of the side of the copper busbar fixing base 3, a soft copper telescopic joint 8 is connected to the end of the conductive copper busbar 5, and a support mechanism 9 is provided at the bottom of the soft copper telescopic joint 8.

[0019] The conductive copper busbar 5 is installed inside the copper busbar fixing base 3 through the copper busbar sleeve 4. The buffer structure composed of the copper busbar fixing base 3, the telescopic connecting rod 6 and the buffer spring 7 can buffer the external force exerted on the conductive copper busbar 5 when the bus duct is subjected to lateral vibration, reduce the impact of vibration on the conductive copper busbar 5, and prevent the conductive copper busbar 5 from being twisted and damaged due to the lateral force. The soft copper expansion joint 8 is supported by the supporting mechanism 9 to prevent the soft copper expansion joint 8 from being deformed when subjected to vibration, and to prevent the connection between the conductive copper busbar 5 and the soft copper expansion joint 8 from loosening under the influence of vibration.

[0020] The bus duct housing 2 includes housing side panels 21 and a housing top panel 22 . The two sets of housing side panels 21 are respectively arranged at the edge positions on both sides of the top of the bus duct bottom panel 1 , and the housing top panel 22 is arranged on the top of the housing side panels 21 .

[0021] The copper bar fixing base 3 includes a base bottom plate 31, a base side plate 32, a sleeve chute 33, a connecting block 34, a strip connecting groove 35 and a base top cover 36. The base bottom plate 31 is placed on the top surface of the bus duct bottom plate 1, and several groups of base side plates 32 are vertically arranged on the top of the base bottom plate 31. The middle of two adjacent groups of base side plates 32 is set as the sleeve chute 33, the connecting block 34 is set at both ends of the base bottom plate 31, the strip connecting groove 35 is opened on the top of the base bottom plate 31, and the top of the base is provided with a plurality of connecting blocks 34. The cover 36 is connected to the top of the base side plate 32 through a pin, and the copper busbar sleeve 4 is placed inside the sleeve slide groove 33. The top surface of the sleeve slide groove 33 abuts against the bottom surface of the raised block at the bottom of the base top cover 36. The copper busbar sleeve 4 is inserted into the sleeve slide groove 33 through the base top cover 36, so that the copper busbar sleeve 4 can slide in the sleeve slide groove 33. When the conductive copper busbar 5 expands due to heat, the copper busbar sleeve 4 slides inside the sleeve slide groove 33, reducing the stress on the end of the conductive copper busbar 5.

[0022] The telescopic connecting rod 6 includes a connecting rod 61 and a connecting sleeve 62. The connecting rod 61 is connected to the outer corner of the base side panel 32. One end of the connecting sleeve 62 is sleeved on the end of the connecting rod 61. The other end of the connecting sleeve 62 is connected to the inner side of the shell side panel 21 by a bolt. The base side panel 32 is connected to the shell side panel 21 through the telescopic connecting rod 6 to prevent the base side panel 32 from tilting during the translation process.

[0023] One end of the buffer spring 7 is sleeved on the raised block on the outside of the base side plate 32, and the other end of the buffer spring 7 is sleeved on the raised block on the inside of the shell side plate 21. When the buffer spring 7 passes through, the side surface of the base side plate 32 is subjected to elastic force, reducing the lateral vibration force exerted on the base side plate 32.

[0024] The soft copper expansion joint 8 includes a connecting plate 81 and an arc-shaped soft copper plate 82. The connecting plate 81 is connected to the end of the conductive copper bus 5 by bolts, and the arc-shaped soft copper plate 82 is arranged at the end of the connecting plate 81. The arc-shaped soft copper plate 82 produces expansion and contraction deformation when subjected to force, thereby reducing the stress on the end of the conductive copper bus 5 and compensating for the thermal expansion and contraction of the conductive copper bus 5.

[0025] The supporting mechanism 9 includes a fixing plate 91, a blocking plate 92 and a reset mechanism 93. The fixing plate 91 is fixed to the end position of the copper busbar fixing base 3 by bolts. Several groups of blocking plates 92 are vertically arranged on the top of the fixing plate 91. The reset mechanism 93 is arranged on the side of the blocking plate 92. The blocking plate 92 blocks the two adjacent soft copper expansion joints 8 to prevent the soft copper expansion joints 8 from contacting during stretching and deformation.

[0026] The reset mechanism 93 includes a limit pin 931 and a reset block 932. The limit pin 931 is inserted into a through-hole formed in the blocking plate 92, and the reset block 932 is fixed to the end of the limit pin 931. A reset spring 933 is sleeved around the limit pin 931 and positioned between the blocking plate 92 and the reset block 932. The reset block 932 supports the side of the curved soft copper plate 82 through the action of the reset spring 933. The force of the reset block 932 enables the curved soft copper plate 82 to return to its original curvature when no tension is applied, ensuring long-term, stable operation of the curved soft copper plate 82.

[0027] How to use bus duct with telescopic compensation structure: Place the copper bar fixing base 3 on the top surface of the bus duct bottom plate 1, insert the bolts into the through holes opened on the bus duct bottom plate 1 and connect them to the strip connecting groove 35; install nuts on the bolts to connect the connecting block 34 to the bus duct bottom plate 1, adjust the tightness of the bolts and nuts so that the connecting block 34 can move under the action of the bolts and the strip connecting groove 35; put the connecting sleeve 62 on the end of the connecting rod 61; put the buffer spring 7 on the raised block on the outside of the base side plate 32; Install the outer shell side plate 21 at the edge position, so that the end of the buffer spring 7 is sleeved on the raised block on the inner side of the outer shell side plate 21; insert the bolt through the outer shell side plate 21 and connect it to the end of the connecting sleeve 62, so that the end of the connecting sleeve 62 is fixed to the inner side of the outer shell side plate 21; sleeve the copper busbar sleeve 4 on the outside of the conductive copper busbar 5; place the copper busbar sleeve 4 together with the conductive copper busbar 5 inside the sleeve chute 33; cover the top of the base cover 36 on the top of the copper busbar sleeve 4, so that the base cover 36 is inserted into the base side plate 3 through the pin at the bottom. 2 top; put the reset spring 933 on the outside of the limit pin 931; insert the limit pin 931 on the blocking plate 92, so that the two ends of the reset spring 933 are respectively in contact with the inner side of the blocking plate 92 and the reset top block 932; fix the fixing plate 91 to the top of the bus duct bottom plate 1 with bolts, so that the support mechanism 9 is located at the end position of the copper bar fixing base 3; place the soft copper expansion joint 8 inside the support mechanism 9, so that the arc-shaped soft copper plate 82 is placed between the two adjacent groups of blocking plates 92 and the reset top block 932 The connecting plate 81 is connected to the end of the conductive copper busbar 5 by bolts and nuts; the housing top plate 22 is fixed to the top of the housing side plate 21, and the busbar bottom plate 1 is installed at the cable connection position by bolts; the conductive copper busbar 5 is connected to the circuit to complete the installation of the overall structure of the busbar; when in use, the arc-shaped soft copper plate 82 can be stretched and contracted in the axial direction when subjected to force, and the deformation of the conductive copper busbar 5 caused by thermal expansion during operation is compensated, thereby avoiding distortion and cracking of the conductive copper busbar 5 due to the thermal stress in the axial direction; When the bus duct is subjected to lateral vibration, the copper bar fixing base 3 moves laterally inside the shell side plate 21 under the action of the telescopic connecting rod 6, and the buffer spring 7 is elastically deformed under the force to reduce the lateral vibration of the copper bar fixing base 3.

[0028] The above description is merely a preferred embodiment of the present invention and is intended to be illustrative rather than restrictive of the present invention. Those skilled in the art will appreciate that many changes, modifications, and even equivalents may be made to the present invention within the spirit and scope of the claims, all of which fall within the scope of protection of the present invention.

Claims

1. A bus duct with a telescopic compensation structure, characterized in that: The utility model comprises a busbar bottom plate (1), a busbar housing (2) is installed on the top of the busbar bottom plate (1), a copper bar fixing base (3) is arranged at the middle position of the top surface of the busbar bottom plate (1), a plurality of groups of copper bar sleeves (4) are arranged inside the copper bar fixing base (3), a conductive copper bar (5) is plugged into the copper bar sleeve (4), a plurality of groups of telescopic connecting rods (6) are arranged at the corner positions on both sides of the copper bar fixing base (3), a buffer spring (7) is arranged at the center position of the side of the copper bar fixing base (3), a soft copper telescopic joint (8) is connected to the end of the conductive copper bar (5), and a supporting mechanism (9) is arranged at the bottom of the soft copper telescopic joint (8).

2. The bus duct with a telescopic compensation structure according to claim 1, characterized in that: The bus duct housing (2) comprises housing side panels (21) and a housing top panel (22), wherein two groups of the housing side panels (21) are respectively arranged at edge positions on both sides of the top of the bus duct bottom panel (1), and the housing top panel (22) is arranged on top of the housing side panels (21).

3. The bus duct with a telescopic compensation structure according to claim 1, characterized in that: The copper busbar fixing base (3) comprises a base bottom plate (31), a base side plate (32), a sleeve chute (33), a connecting block (34), a strip connecting groove (35) and a base top cover (36), wherein the base bottom plate (31) is placed on the top surface of the busbar bottom plate (1), a plurality of groups of the base side plates (32) are vertically arranged on the top of the base bottom plate (31), and the middle of two adjacent groups of the base side plates (32) are arranged as sleeve chute (33), the connecting block (34) is arranged at both ends of the base bottom plate (31), the strip connecting groove (35) is opened on the top of the base bottom plate (31), the base top cover (36) is connected to the top of the base side plate (32) by a pin, the copper busbar sleeve (4) is placed inside the sleeve chute (33), and the top surface of the sleeve chute (33) abuts against the bottom surface of the raised block at the bottom of the base top cover (36).

4. The bus duct with a telescopic compensation structure according to claim 1, characterized in that: The telescopic connecting rod (6) comprises a connecting rod (61) and a connecting sleeve (62), wherein the connecting rod (61) is connected to the outer corner of the base side plate (32), one end of the connecting sleeve (62) is sleeved on the end of the connecting rod (61), and the other end of the connecting sleeve (62) is connected to the inner side of the housing side plate (21) via a bolt.

5. The bus duct with a telescopic compensation structure according to claim 1, characterized in that: One end of the buffer spring (7) is sleeved on the raised block on the outside of the base side plate (32), and the other end of the buffer spring (7) is sleeved on the raised block on the inside of the shell side plate (21).

6. The bus duct with a telescopic compensation structure according to claim 1, characterized in that: The soft copper expansion joint (8) comprises a connecting plate (81) and an arc-shaped soft copper plate (82), wherein the connecting plate (81) is connected to the end of the conductive copper busbar (5) via bolts, and the arc-shaped soft copper plate (82) is arranged at the end of the connecting plate (81).

7. The bus duct with a telescopic compensation structure according to claim 1, characterized in that: The support mechanism (9) comprises a fixing plate (91), a blocking plate (92) and a reset mechanism (93); the fixing plate (91) is fixed to the end position of the copper busbar fixing base (3) by bolts; a plurality of groups of blocking plates (92) are vertically arranged on the top of the fixing plate (91); and the reset mechanism (93) is arranged on the side of the blocking plate (92).

8. The bus duct with a telescopic compensation structure according to claim 7, characterized in that: The reset mechanism (93) comprises a limit pin (931), a reset top block (932) and a reset spring (933), wherein the limit pin (931) is inserted into a through hole provided on the blocking plate (92), and the reset top block (932) is fixed to the end of the limit pin (931).

9. The bus duct with a telescopic compensation structure according to claim 8, characterized in that: The outer sleeve of the limiting pin (931) is provided with a reset spring (933), and the reset spring (933) is located between the blocking plate (92) and the reset top block (932).

10. A method for using the bus duct with a telescopic compensation structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step S1, placing the copper busbar fixing base (3) on the top surface of the busbar bottom plate (1), inserting the bolts through the through holes opened on the busbar bottom plate (1) and connecting them to the strip connection groove (35); Step S2, installing nuts on the bolts to connect the connecting block (34) to the busbar bottom plate (1), and adjusting the tightness of the bolts and nuts so that the connecting block (34) can move under the action of the bolts and the strip connecting groove (35); Step S3, sleeve the connecting sleeve (62) onto the end of the connecting rod (61); Step S4, sleeve the buffer spring (7) onto the raised block on the outside of the base side plate (32); Step S5, installing the housing side plates (21) at the edge positions on both sides of the top surface of the busbar bottom plate (1), so that the ends of the buffer springs (7) are sleeved on the raised blocks on the inner sides of the housing side plates (21); Step S6, inserting a bolt through the housing side plate (21) and connecting it to the end of the connecting sleeve (62), so that the end of the connecting sleeve (62) is fixed to the inner side surface of the housing side plate (21); Step S7, sleeve the copper busbar sleeve (4) onto the outside of the conductive copper busbar (5); Step S8, placing the copper busbar sleeve (4) together with the conductive copper busbar (5) inside the sleeve chute (33); Step S9, covering the top of the copper busbar sleeve (4) with the base top cover (36), so that the base top cover (36) is plugged into the top of the base side plate (32) through the latch at the bottom; Step S10, sleeve the return spring (933) onto the outside of the limit pin (931); Step S11, inserting the limit pin (931) into the blocking plate (92), so that the two ends of the return spring (933) respectively abut against the inner side surfaces of the blocking plate (92) and the return top block (932); Step S12, fixing the fixing plate (91) to the top of the bus duct bottom plate (1) by means of bolts, so that the supporting mechanism (9) is located at the end position of the copper bar fixing base (3); Step S13, placing the soft copper expansion joint (8) inside the support mechanism (9), so that the arc-shaped soft copper plate (82) is placed between two adjacent groups of blocking plates (92) and the reset top block (932); Step S14, connecting the connecting plate (81) to the end of the conductive copper busbar (5) by means of bolts and nuts; Step S15, fixing the housing top plate (22) to the top of the housing side plate (21), and installing the bus duct bottom plate (1) at the cable connection position by means of bolts; Step S16, connecting the conductive copper busbar (5) to the circuit to complete the installation of the overall bus duct structure; Step S17, when in use, the arc-shaped soft copper plate (82) is able to expand and contract in the axial direction when subjected to force, thereby compensating for the deformation of the conductive copper busbar (5) caused by thermal expansion during operation, thereby preventing the conductive copper busbar (5) from being twisted and cracked due to the thermal stress in the axial direction; Step S18, when the bus duct is subjected to lateral vibration, the copper busbar fixing base (3) moves laterally inside the housing side plate (21) under the action of the telescopic connecting rod (6), and the buffer spring (7) is elastically deformed under the force, thereby reducing the lateral vibration of the copper busbar fixing base (3).

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