A clamping mechanism and composite bus

Abstract

The utility model relates to high -pressure pouring bus's technical field especially relates to a kind of clamping mechanism and combined bus, including clamping assembly, it includes first clamping block and second clamping block, positioning hole being set on the first clamping block and the second clamping block, and limiting slot being set on the first clamping block and / or the second clamping block;And, fixed component, it includes positioning part and limiting part;The positioning part is matched with the positioning hole, and the limiting part is matched with the first clamping block and / or the second clamping block.This kind of clamping mechanism and combined bus, by the high-pressure pouring bus of split setting, it is convenient to transport and on-site quick installation, when high-pressure pouring bus is installed on site, single combined bus can be installed, then according to need to a plurality of combined bus are spliced, can adapt to the assembly under the installation space of narrow.

Description

Technical Field

[0001] This utility model relates to the technical field of high-pressure cast busbars, and in particular to a clamping mechanism and a combined busbar. Background Technology

[0002] Existing high-voltage cast-in-place busbars widely adopt an integrated casting method. Although they have good insulation performance and mechanical strength, their large size and heavy weight lead to difficulties in transportation and installation, inconvenience in installation, and lack of flexibility. Especially in narrow installation spaces or complex site conditions, it is difficult for construction personnel to carry out flexible and quick installation operations. Utility Model Content

[0003] In view of the problems of large size and heavy weight of the existing high-pressure cast busbars, this utility model is proposed.

[0004] Therefore, one of the objectives of this invention is to provide a clamping mechanism that facilitates the fixing of busbar conductors.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a clamping mechanism, comprising a clamping component including a first clamping block and a second clamping block, a positioning hole disposed on the first clamping block and the second clamping block, and a limiting groove disposed on the first clamping block and / or the second clamping block; and a fixing component including a positioning part and a limiting part; wherein the positioning part cooperates with the positioning hole, and the limiting part cooperates with the first clamping block and / or the second clamping block.

[0006] In a preferred embodiment of the clamping mechanism described in this utility model, the positioning part is made of a screw, and there are two limiting parts made of nuts. The positioning part and the limiting parts are separately disposed, and the two limiting parts are threadedly connected to the two ends of the positioning part respectively. The positioning hole is a smooth hole for the positioning part to pass through and fit.

[0007] In a preferred embodiment of the clamping mechanism of this utility model, the first clamping block and the second clamping block have the same shape; the first clamping block includes a bottom plane and a top plane, connecting inclined surfaces disposed on both sides of the top plane, and a low plane disposed on the side of the connecting inclined surface; the overall width of the top plane, the connecting inclined surface and the low plane is the same as the width of the bottom plane; at least one limiting groove is provided and disposed in the bottom plane.

[0008] As a preferred embodiment of the clamping mechanism of this utility model, the inner wall of the limiting groove is provided with an anti-slip groove; the anti-slip groove is arranged in a mesh pattern.

[0009] The beneficial effects of this clamping mechanism are: by docking the first clamping block and the second clamping block, the first clamping block and the second clamping block are fixed under the action of the positioning part and the limiting part, and the limiting groove therein can clamp the object.

[0010] The second objective of this invention is to provide a combined busbar that facilitates the assembly of high-pressure cast busbars on-site.

[0011] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a combined busbar, including a clamping mechanism, and further comprising;

[0012] A busbar assembly, comprising at least one busbar conductor engaged in the limiting groove; and a protective assembly, comprising a protective shell, a fixing hole disposed on the protective shell, and a fixing member disposed on the fixing hole; the protective shell is fitted over the outside of the clamping assembly and is fixed by the fixing member.

[0013] In a preferred embodiment of the combined busbar of this utility model, the protective shell includes two assembled shells, and the fixing hole is provided on the assembled shell; the fixing hole coincides with the positioning hole; the assembled shell covers the outside of the clamping assembly, and the end of the positioning part protrudes through the fixing hole; the fixing member is made of a nut, and the fixing member is threadedly connected to the positioning part.

[0014] In a preferred embodiment of the combined busbar of this utility model, a connecting plate is provided between the two assembled shells; two connecting plates are provided, respectively located on both sides of the two assembled shells; and reinforcing ribs are provided on the connecting plates.

[0015] As a preferred embodiment of the combined busbar of this utility model, the busbar conductor includes a conductor, a resin fluidized insulating layer disposed in the middle of the conductor, and a resin casting insulating layer disposed on the outside of the resin fluidized insulating layer.

[0016] The advantages of this utility model are: the separate design of the bus conductor, clamping component and protective component makes it easy to transport, and during assembly, the bus conductor can be fixed by the clamping component and the protective component can be put on the outside of the clamping component to complete the installation quickly. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 An overall schematic diagram of Embodiment 1 is shown;

[0019] Figure 2 An overall schematic diagram of Embodiment 2 is shown;

[0020] Figure 3 A schematic diagram of the first clamping block in Embodiment 2 is shown;

[0021] Figure 4 A schematic diagram of the anti-slip groove in Embodiment 2 is shown;

[0022] Figure 5 An overall schematic diagram of Embodiment 3 is shown;

[0023] Figure 6 A schematic diagram of the busbar conductor in Embodiment 3 is shown;

[0024] Figure 7 A schematic diagram of the limiting block in Embodiment 3 is shown;

[0025] Figure 8 A schematic diagram of the integrated fixing component of Embodiment 3 is shown;

[0026] Figure 9 A schematic diagram of the fastener installation in Embodiment 3 is shown;

[0027] Figure 10 It shows Figure 9 Enlarged view of region A in the middle;

[0028] Figure 11 A schematic diagram of the split-type fixing component of Embodiment 3 is shown;

[0029] Figure 12 An overall schematic diagram of Embodiment 4 is shown;

[0030] Figure 13 A schematic diagram of the positioning part in Embodiment 4 is shown;

[0031] Figure 14 A schematic diagram of the assembled shell of Embodiment 4 is shown;

[0032] Figure 15 A schematic diagram of the horizontally bent busbar conductor of Embodiment 4 is shown;

[0033] Figure 16 A schematic diagram of the vertically bent busbar conductor of Embodiment 4 is shown;

[0034] Figure 17 A schematic diagram of a single installation process for Embodiment 5 is shown;

[0035] Figure 18 Several assembly process diagrams of Embodiment 5 are shown. Detailed Implementation

[0036] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0037] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0038] Example 1, referring to Figure 1 The first embodiment of this utility model provides a clamping mechanism, which includes a clamping component 100 and a fixing component 200.

[0039] The clamping assembly 100 includes a first clamping block 101 and a second clamping block 102, a positioning hole 103 disposed on the first clamping block 101 and the second clamping block 102, and a limiting groove 104 disposed on the first clamping block 101 and / or the second clamping block 102.

[0040] The fixing component 200 includes a positioning part 201 and a limiting part 202. The positioning part 201 cooperates with the positioning hole 103, and the limiting part 202 cooperates with the first clamping block 101 and / or the second clamping block 102.

[0041] When the first clamping block 101 and the second clamping block 102 are aligned, the positioning holes 103 on the first clamping block 101 and the second clamping block 102 are superimposed into a whole, and the two positioning holes 103 can be regarded as one; wherein the positioning holes 103 are preferably provided in multiple ways.

[0042] The first clamping block 101 or the second clamping block 102 is provided with a limiting groove 104, and there is at least one limiting groove 104; or both the first clamping block 101 and the second clamping block 102 are provided with limiting grooves 104. When the first clamping block 101 and the second clamping block 102 are aligned, the limiting grooves 104 on the first clamping block 101 and the second clamping block 102 are superimposed into a whole, and the two limiting grooves 104 can be regarded as one; there is at least one superimposed limiting groove 104.

[0043] The positioning part 201 is made of a screw, and the limiting part 202 is made of a nut. The positioning part 201 and the limiting part 202 are fixedly disposed together. One of the positioning holes 103 in the first clamping block 101 or the second clamping block 102 is a threaded hole. Half of the integral positioning hole 103 formed after aligning the first clamping block 101 and the second clamping block 102 is threaded. The positioning part 201 is inserted into the positioning hole 103. Through the threaded engagement between the positioning part 201 and the positioning hole 103, when the limiting part 202 abuts against the surface of the first clamping block 101 or the second clamping block 102, the first clamping block 101 and the second clamping block 102 can be fixed together.

[0044] Alternatively, the positioning part 201 can be made of a screw, and the limiting part 202 can be made of two nuts. The positioning part 201 and the limiting part 202 are set separately. The positioning hole 103 is set as a smooth hole. After the first clamping block 101 and the second clamping block 102 are aligned, the positioning part 201 is inserted into the positioning hole 103. The two ends of the positioning part 201 are respectively threaded to the two limiting parts 202. When the two limiting parts 202 simultaneously abut against the surfaces of the first clamping block 101 and the second clamping block 102, the first clamping block 101 and the second clamping block 102 can be fixed together.

[0045] Usage process: By fixing the first clamping block 101 and the second clamping block 102 together, the object to be clamped can be clamped in the limiting groove 104.

[0046] Example 2, refer to Figures 2-4 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the first clamping block 101 and the second clamping block 102 have the same shape. The identical shape of the first clamping block 101 and the second clamping block 102 facilitates processing and production. Furthermore, during assembly, it is not necessary to match them separately; any two can be selected to complete the assembly.

[0047] The first clamping block 101 is described in detail below. The first clamping block 101 includes a bottom plane 101a and a top plane 101b, connecting inclined surfaces 101c disposed on both sides of the top plane 101b, and a low plane 101d disposed on the side of the connecting inclined surface 101c. The bottom plane 101a, the top plane 101b, and the low plane 101d are arranged parallel to each other, and the low plane 101d is located between the bottom plane 101a and the top plane 101b.

[0048] Furthermore, the overall width of the top plane 101b, the connecting slope 101c, and the low plane 101d is the same as the width of the bottom plane 101a; the arrangement of the connecting slope 101c and the low plane 101d helps to save materials and improve the overall aesthetics.

[0049] The limiting groove 104 is provided in the bottom plane 101a, and the inner wall of the limiting groove 104 is provided with an anti-slip groove 105, which is arranged in a mesh shape; preferably, the anti-slip groove 105 is provided in the bottom wall of the limiting groove 104, and the anti-slip groove 105 can be regarded as a mesh formed by splicing multiple basic grooves. The basic groove is hollow in the middle, square around the perimeter, and the surface is arc-shaped.

[0050] The remaining structure is the same as that in Example 1.

[0051] Example 3, referring to Figures 5-11 This is the third embodiment of the present utility model, and the first embodiment of the present utility model. It provides a combined busbar, which includes: a clamping mechanism, a busbar assembly 300 and a protection assembly 400.

[0052] The busbar assembly 300 includes at least one busbar conductor 301, which is snapped into the limiting groove 104. The anti-slip groove 105 contacts the busbar conductor 301 to provide anti-slip function. The outer surface of the busbar conductor 301 is cast and molded, and the surface cannot be perfectly flat. The anti-slip groove 105 can absorb the fact that the surface of the busbar conductor 301 is not perfectly level, so that it can make better contact with the busbar conductor 301, increase friction, and prevent the busbar conductor 301 from sliding down.

[0053] The number of limiting grooves 104 after the first clamping block 101 and the second clamping block 102 are aligned is greater than or equal to the number of bus conductors 301.

[0054] Furthermore, the bus conductor 301 includes a conductor 301a, a resin fluidized insulating layer 301b disposed in the middle of the conductor 301a, and a resin-cast insulating layer 301c disposed outside the resin fluidized insulating layer 301b. In this embodiment, three bus conductors 301 are selected, namely phase A, phase B, and phase C. The conductor 301a and the insulation part of each phase are manufactured separately during the production process. Each conductor 301a has an independent insulation layer. Each bus conductor 301 is cast from epoxy resin material to ensure sufficient electrical insulation and mechanical strength. The conductor 301a of each bus conductor 301 is composed of a metal conductor such as a copper conductor, an aluminum conductor, or a copper-aluminum composite conductor. The conductor 301a is wrapped with a high-strength resin fluidized insulating layer 301b using insulation fluidization technology. Finally, a resin-cast insulating layer 301c is disposed outside the resin fluidized insulating layer 301b.

[0055] The clamping assembly 100 is provided in at least two sets, with the two clamping assemblies 100 located at both ends of the bus assembly 300 respectively. In this embodiment, three sets of clamping assemblies 100 are preferably used.

[0056] During installation, the busbar conductor 301 can be clamped and fixed by the limiting groove 104 combined on the first clamping block 101 and the second clamping block 102. In order to ensure that the clamping block positions on each assembled busbar are consistent, the size of the busbar conductor 301 can be measured and the position marked before assembling the clamping blocks to ensure that the specifications and shapes of each assembled high-voltage cast busbar are exactly the same.

[0057] Preferably, multiple limiting blocks 301d can be provided on the resin-cast insulation layer 301c; the limiting blocks 301d are attached to the first clamping block 101 and / or the second clamping block 102 to position the first clamping block 101 and / or the second clamping block 102. During installation, by attaching the first clamping block 101 and / or the second clamping block 102 to the limiting blocks 301d, the step of measuring dimensions can be saved. At the same time, the limiting blocks 301d can prevent mistaken identity and ensure that the specifications and shapes of each assembled busbar are exactly the same.

[0058] The protective component 400 includes a protective housing 401, a fixing hole 402 disposed on the protective housing 401, and a fastener 403 disposed on the fixing hole 402.

[0059] The protective shell 401 is integrally formed and can be sleeved on the outside of the first clamping block 101 and the second clamping block 102 after the first clamping block 101 and the second clamping block 102 clamp the bus conductor 301.

[0060] Among them, such as Figure 8 Therefore, the positioning hole 103 is T-shaped and the shape of the positioning hole 103 is wider at the top and narrower at the bottom. Half of the overall positioning hole 103 formed after aligning the first clamping block 101 and the second clamping block 102 has threads. The positioning holes 103 are evenly distributed on the clamping block and avoid the position of the limiting groove 104.

[0061] At this time, the positioning part 201 and the limiting part 202 are integrally formed. After the first clamping block 101 and the second clamping block 102 clamp and limit the three bus conductors 301, the positioning part 201 is inserted into one of the unthreaded positioning holes 103. The limiting part 202 is rotated to pass through the two positioning holes 103 in sequence and is threadedly connected to the threaded positioning hole 103, which can fix the first clamping block 101 and the second clamping block 102 together. At the same time, the limiting part 202 is located in the upper wide hole of the positioning hole 103 to ensure that the limiting part does not exceed the surface of the clamping block.

[0062] like Figure 9 and Figure 10As shown, the protective shell 401 can be directly fitted onto the outside of the first clamping block 101 and the second clamping block 102. At this time, the fixing hole 402 coincides with the positioning hole 103. The fixing member 403 is made of bolts. By inserting the fixing member 403 through the fixing hole 402 and into the threaded positioning hole 103, and connecting it with the positioning hole 103 by thread, the protective shell 401 can be fixed. Preferably, when fixing the first clamping block 101 and the second clamping block 102, the threads of the positioning holes 103 are staggered. At this time, when installing the limiting part 202, the limiting part 202 can be installed in a staggered manner, so that the heads of the limiting part 202 are not on the same side. At this time, when installing the protective shell 401, both the upper and lower surfaces of the protective shell 401 can be fixed with the clamping assembly 100, thereby making the fixation more secure.

[0063] Or, such as Figure 11 As shown, the positioning hole 103 is provided with a T-shaped light hole and a threaded hole respectively, and the shape of the light hole is set to be wider at the top and narrower at the bottom.

[0064] At this time, the positioning part 201 and the limiting part 202 are set separately. After the first clamping block 101 and the second clamping block 102 clamp and limit the three bus conductors 301, the positioning part 201 is inserted from one of the positioning holes 103. The first clamping block 101 and the second clamping block 102 are fixed by installing the limiting part 202. At this time, the positioning part 201 and the end are located in the wide hole on the light hole, ensuring that the limiting part 202 and the positioning part 201 do not exceed the surface of the clamping block.

[0065] The protective shell 401 can be directly fitted onto the outside of the first clamping block 101 and the second clamping block 102. At this time, the fixing hole 402 coincides with the threaded hole of the positioning hole 103. The fixing member 403 is made of bolts. By inserting the fixing member 403 into the fixing hole 402 and connecting it with the threaded hole, the protective shell 401 can be fixed.

[0066] The preferred protective shell 401 has a surface contour that matches the surface contour of the first clamping block 101 and the second clamping block 102, so that when the protective shell 401 is fitted over the outside of the first clamping block 101 and the second clamping block 102, it can completely fit the surface of the first clamping block 101 and the second clamping block 102.

[0067] Example 4, refer to Figures 12-16 This is the fourth embodiment of the present invention. The difference between this embodiment and the third embodiment is that the protective shell 401 includes two assembled shells 401a. The fixing hole 402 is provided on the assembled shell 401a. The fixing hole 402 coincides with the positioning hole 103. The two assembled shells 401a have the same specifications and can be mass-produced.

[0068] The positioning hole 103 does not need to be T-shaped. The end of the positioning part 201 passes through the first clamping block 101 and / or the second clamping block. The assembly shell 401a covers the outside of the clamping assembly 100. At this time, the end of the positioning part 201 passes through the fixing hole 402, which can position the assembly shell 401a. The fixing member 403 is made of a nut. The fixing member 403 is threadedly connected to the positioning part 201 to fix the assembly shell 401a on the clamping assembly 100, and the two assembly shells 401a are fixed together.

[0069] A connecting plate 401b is preferably provided between the two assembled shells 401a; there are two connecting plates 401b, which are respectively located on both sides of the two assembled shells 401a; the two sides of the assembled shells 401a are bent outwards, and the middle of the connecting plate 401b is recessed and installed between the bends of the two assembled shells 401a.

[0070] After the two assembly shells 401a are assembled, there is a gap at the connection. At this time, the gap is sealed by connecting plate 401b. Similarly, connecting plate 401b can be mass-produced for easy selection and installation on site.

[0071] The connecting plate 401b is provided with a reinforcing rib 401c; the two ends of the reinforcing rib 401c are bent, and the bending direction of the reinforcing rib 401c is away from the protective shell 401; the reinforcing rib 401c is installed in the recess of the connecting plate 401b and is fixed to the connecting plate 401b by bolts, thereby increasing the overall firmness of the protective shell 401.

[0072] Furthermore, the bus conductor 301 and the protective shell 401 are not limited to being long strips; they can be produced in L-shaped, Z-shaped, or other shapes according to actual needs.

[0073] like Figure 15 As shown, busbar conductor 301 is horizontally bent, or as... Figure 17 The bus conductor 301 shown is in a vertically bent shape, and the protective shell 401 is wrapped around the outside of the bus conductor 301, with the bending shape consistent with that of the bus conductor 301.

[0074] The bus conductor 301, the first clamp 101, the second clamp 102, the assembly shell 401a, the connecting plate 401b, and the reinforcing rib 401c are all separate standard parts that can be mass-produced. In use, the separate parts facilitate transportation and on-site installation. During on-site installation, the three-phase bus conductor 301 can be placed separately first, and then assembled into a whole by the first clamp 101 and the second clamp 102. After that, the protective shell 401 is put on to ensure stable electrical connection between the various parts of the bus. After the installation is completed, electrical testing is conducted to ensure that the conductivity and insulation performance of the bus meets the standards.

[0075] The remaining structure is the same as that in Example 3.

[0076] Example 5, refer to Figure 17 and Figure 18 This is the fifth embodiment of the present invention. This embodiment provides an assembly process for a combined busbar. The process includes: clamping the busbar conductor 301 in a limiting groove 104 between a first clamping block 101 and a second clamping block 102; passing a positioning part 201 through a positioning hole 103 and fixing the first clamping block 101 and the second clamping block 102 to each other under the action of the limiting part 202; and sleeve a protective shell 401 on the outside of the first clamping block 101 and the second clamping block 102 and fixing it with a fastener 403 to form a combined busbar.

[0077] When it is necessary to splice the assembled busbars, the busbar conductors 301 between the two assembled busbars are kept horizontal and spaced 10mm apart. Then, connecting plates are installed on both sides of the busbars, and the two connecting plates are fixed together with bolts. The two busbar conductors 301 are clamped and fixed, and the busbar conductors 301 are provided with through holes for bolts to pass through.

[0078] After all the busbar conductors of the two combined busbar components are connected and fixed, the connection point of the busbar conductor 301 is cast. During casting, a mold is first installed on the outside of the mounting plate. The mold is placed on the outside of the single busbar conductor 301 to wrap the connection point. It should be noted that the number of molds should be set for the number of busbar conductors 301 in the assembled combined busbar. Then, insulating material is poured into the mold. After it solidifies, the mold is removed.

[0079] Finally, a connecting cover 500 is installed at the casting point of the bus conductor 301, and the connecting cover 500 is fixed to the protective shells 401 on both sides; a connecting rod 600 is installed between the two reinforcing ribs 401c on the outside of the connecting cover 500; multiple combined busbars can be spliced ​​according to actual needs.

[0080] When the combined busbar is fully assembled and in actual use, if a fault occurs in one phase busbar conductor 301, the user can replace only that unit without replacing the entire busbar system. In other words, the existing busbar conductors 301 are integrally cast, and the multi-phase busbar conductors 301 are integrally formed and cannot be separated. When they are damaged, they can only be disassembled and replaced as a whole. However, when a fault occurs in one phase busbar conductor 301 in the combined busbar of this utility model, the damaged phase busbar conductor 301 can be replaced separately after the protective shell 401 and clamping assembly 100 are removed. This makes the replacement more flexible and saves material costs.

[0081] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A clamping mechanism, characterized in that: include, A clamping assembly (100) includes a first clamping block (101) and a second clamping block (102), positioning holes (103) disposed on the first clamping block (101) and the second clamping block (102), and limiting grooves (104) disposed on the first clamping block (101) and / or the second clamping block (102); and, The fixing component (200) includes a positioning part (201) and a limiting part (202). The positioning part (201) cooperates with the positioning hole (103), and the limiting part (202) cooperates with the first clamping block (101) and / or the second clamping block (102); The first clamping block (101) and the second clamping block (102) have the same shape; The first clamping block (101) includes a bottom plane (101a) and a top plane (101b), connecting ramps (101c) disposed on both sides of the top plane (101b), and a low plane (101d) disposed on the side of the connecting ramps (101c). The overall width of the top plane (101b), the connecting slope (101c), and the low plane (101d) is the same as the width of the bottom plane (101a); At least one limiting groove (104) is provided and is disposed in the bottom plane (101a).

2. A clamping mechanism according to claim 1, wherein: The positioning part (201) is made of a screw, and there are two limiting parts (202) made of nuts. The positioning part (201) and the limiting part (202) are separately provided, and the two limiting parts (202) are threadedly connected to the two ends of the positioning part (201). The positioning hole (103) is configured as a light hole for the positioning part (201) to pass through and fit.

3. A clamping mechanism according to claim 1 or 2, wherein: The inner wall of the limiting groove (104) is provided with an anti-slip groove (105); The anti-slip groove (105) is arranged in a mesh pattern.

4. A composite bus, characterized by: Including the clamping mechanism as described in claim 3, it also includes, A busbar assembly (300) comprising at least one busbar conductor (301) snapped into the limiting groove (104); and, The protective component (400) includes a protective shell (401), a fixing hole (402) disposed on the protective shell (401), and a fastener (403) disposed on the fixing hole (402). The protective shell (401) is fitted over the outside of the clamping assembly (100) and is fixed by the fastener (403).

5. The composite busbar of claim 4, wherein: The protective shell (401) includes two assembled shells (401a), and the fixing hole (402) is provided on the assembled shell (401a); The fixing hole (402) coincides with the positioning hole (103); The assembly shell (401a) covers the outside of the clamping assembly (100), and the end of the positioning part (201) protrudes through the fixing hole (402). The fastener (403) is made of a nut and is threadedly connected to the positioning part (201).

6. The composite busbar of claim 5, wherein: A connecting plate (401b) is provided between the two assembled shells (401a); Two connecting plates (401b) are provided, located on both sides of the two assembled shells (401a); The connecting plate (401b) is provided with reinforcing ribs (401c).

7. The composite busbar of any of claims 4-6, wherein: The bus conductor (301) includes a conductor (301a), a resin fluidized insulating layer (301b) disposed in the middle of the conductor (301a), and a resin casting insulating layer (301c) disposed on the outside of the resin fluidized insulating layer (301b).

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