Bus wiring structure and metering box

Abstract

The invention discloses a bus wiring structure and a metering box, and relates to the technical field of bus wiring, the bus wiring structure comprises a conductive block used for forming an access, and also comprises a clamp spring piece used for bearing a bus, the clamp spring piece comprises a blade part used for abutting against a main wiring end, and a second end of the blade part is bent into an S shape after being split to form an arched part; and the arched part abuts against the blade part to form a clamping station for clamping the conductive block. The bus wiring structure and the bus of the metering box simultaneously supply power or transmit current to the main wiring terminal and the auxiliary wiring terminal. Therefore, the one-to-many power distribution function is realized, a related detection device can be arranged on the auxiliary wiring end, so that the auxiliary wiring end can directly feed back the current condition of the main wiring end, the detection does not influence the main wiring end, and the bus can be independently clamped through the clamp spring piece, so that the detection accuracy is improved according to the condition of the bus. And replacing a new bus or maintaining the end part of the bus.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of busbar wiring structure, in particular to a busbar wiring structure and a metering box. BACKGROUND

[0002] In the power distribution system, the busbar wiring structure is a key component to realize the distribution and connection of electric energy, especially in the application scenarios such as metering box which requires accurate measurement and reliable power supply. When the contact condition of the busbar end, the conductive part (such as the conductive block) needs to be cleaned, checked or replaced, the existing structure often needs to be completely or mostly disassembled. This usually involves disconnecting the connection of the main and auxiliary wiring ends, removing multiple cover plates or even the entire wiring module In combination with the publication number CN120262199A, a non-bolted busbar power distribution cabinet is disclosed, which comprises a support mechanism, the support mechanism comprising a chassis, a top frame, a mounting plate and a support component, the top frame being slidably inserted into the top of the chassis, the mounting plate being fixedly connected to the outer surface of one side of the chassis, and the support component being arranged on the chassis and the top frame. In the present application, when in use, the support mechanism can be conveniently moved to the specified use position by the moving wheel, and then the chassis can be stably installed at the specified installation position by the mounting plate. At the same time, according to the actual installation requirements, the number of adjusting mechanisms is increased or decreased, and then the side frame is rotated to the required angle and inserted between the specified two groups of mounting strips. At this time, the positioning strips can extend into the corresponding positioning holes under the support of the return springs.

[0003] However, in the above-mentioned patent, the clamping stability of the busbar end directly affects the contact resistance, heating and long-term operation reliability. The traditional structure relies on direct fastening of bolts to provide clamping force. This method not only requires assembly personnel to manually adjust the tightness of the bolts according to experience to achieve the appropriate pressure, but it is difficult to ensure consistency and optimality. More importantly, under the influence of long-term operation, temperature changes or vibration, the bolts may loosen, resulting in a decrease in clamping force, an increase in contact resistance, and a risk of overheating or failure. SUMMARY

[0004] The purpose of the present application is to provide a busbar wiring structure and a metering box to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a busbar wiring structure, comprising a main wiring end, comprising a conductive block for forming a passage, and further comprising a clamping spring member for receiving a busbar, which comprises a blade portion for abutting against the main wiring end, and the second end of the blade portion is forked and bent to form an arch portion, and the arch portion and the blade portion form a clamping station for clamping the conductive block; a front cover and a rear cover respectively detachably connected with the first end and the second end of the blade portion, which are embedded with each other to form a cavity surrounding the conductive block; The positioning slide plate is arranged on the rear cover in sliding mode and is used for fixing the auxiliary terminal.

[0006] As preferred, a pressing seat arranged between the front cover and the rear cover is further included, and a vertical projection of the pressing seat covers the conductive block.

[0007] As preferred, the pressing seat includes a contraction station for pre-tightening the main terminal.

[0008] As preferred, protrusions are arranged on both sides of the upper end of the pressing seat to form a concave structure on the upper end surface of the pressing seat.

[0009] As preferred, the clamping spring further includes a wing plate symmetrically arranged with the blade part as an axis, and the wing plate is provided with a fixing bolt for assembling on the front cover.

[0010] As preferred, a plurality of heat dissipation fins are arranged on the side of the clamping spring away from the conductive block.

[0011] As preferred, a bracket for guiding the assembly of the clamping spring is arranged on the rear cover.

[0012] As preferred, a moving screw for driving the positioning slide plate is rotatably arranged on both sides of the bracket.

[0013] As preferred, the bracket abuts against the arch part to make the arch part bulge.

[0014] A metering box includes a box body and a busbar arranged in the box body, and includes the busbar terminal structure in the above-mentioned scheme, and the box body is sequentially assembled with the front cover, the pressing seat and the rear cover from top to bottom.

[0015] In the above-mentioned technical scheme, the busbar terminal structure and the metering box provided by the application have the following beneficial effects: the busbar simultaneously supplies power or transmits current to the main terminal and the auxiliary terminal. This realizes the power distribution function of "one to multiple", and the related detection device can be arranged on the auxiliary terminal, so that the auxiliary terminal can directly feed back the current condition of the main terminal, and the detection does not affect the main terminal itself, and the clamping spring can separately clamp the busbar, so that the new busbar can be replaced or the end part of the busbar can be maintained according to the condition of the busbar. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the application, and other drawings can be obtained by those skilled in the art according to these drawings.

[0017] Figure 1The overall three-dimensional schematic diagram provided for the embodiment of the present application; Figure 2 The explosive structure schematic diagram provided for the embodiment of the present application; Figure 3 The front cover and compression seat structure schematic diagram provided for the embodiment of the present application; Figure 4 The clasp spring piece structure schematic diagram provided for the embodiment of the present application; Figure 5 The front cover and clasp spring piece structure schematic diagram provided for the embodiment of the present application; Figure 6 The box body and bus bar position schematic diagram provided for the embodiment of the present application.

[0018] Marking of the drawing: 1, front cover; 11, connecting groove; 13, fixing bolt; 2, rear cover; 21, bracket; 22, plug-in block; 3, positioning sliding plate; 31, moving screw; 4, clasp spring piece; 41, arch part; 42, upper bending part; 43, plug-in part; 44, blade part; 45, wing plate; 46, heat dissipation fin; 5, main wiring terminal; 51, bolt; 7, compression seat; 71, protrusion; 72, folding part; 73, clamping piece; 8, conductive block; 9, box body. DETAILED DESCRIPTION

[0019] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0020] As shown in the drawings, Figures 1-6 A bus wiring structure and metering box, comprising a main wiring terminal 5, characterized in that it comprises a conductive block 8 for forming a passage, and further comprises a clasp spring piece 4 for receiving a bus, which comprises a blade part 44 for abutting against the main wiring terminal 5, and the second end of the blade part 44 is bifurcated and then bent to form an arch part 41, and the arch part 41 and the blade part 44 form a clamping station for clamping the conductive block 8; A front cover 1 and a rear cover 2 respectively detachably connected with the first end and the second end of the blade part 44, which are mutually embedded to form a chamber surrounding the conductive block 8; The rear cover 2 is slidably provided with a positioning sliding plate 3, and the positioning sliding plate 3 is used for fixing a secondary wiring terminal.

[0021] Specifically, the clasp spring piece 4 is made of insulating plastic material, the second end of the blade part 44 is bent twice towards the direction where the main wiring terminal 5 is located, so that the tail end of the second end forms a flat surface, and a plug-in part 43 is provided at the center of the flat surface for plug-in of the secondary wiring terminal, wherein a through hole is provided on the positioning sliding plate 3, and the through hole is coaxial with the plug-in part 43.

[0022] The front cover 1 and the rear cover 2 are both provided with notches for guiding the insertion of the main terminal 5. The front cover 1 is further provided with a slot 11, and the rear cover 2 is provided with a plug 22 corresponding to the slot 11. The slot 11 and the plug 22 are assembled correspondingly, so that there is a space between the front cover 1 and the rear cover 2, which is used for accommodating the blade part 44. The arch part 41 is away from the front cover 1 towards the rear cover 2. The direction of the front cover 1 is front, and the direction of the rear cover 2 is rear. The width of the arch part 41 is the largest at the arch top point on the rear side, so the gap between the two arch parts 41 decreases from front to rear. The two arch parts 41 form a structure for clamping the bus terminal, and the front end of the arch part 41 abuts against the upper surface of the blade part 44 to clamp the conductive block 8, and the end of the bus is located between the two arch parts 41 and communicates with the conductive block 8.

[0023] Further, the end of the bus is clamped by the arch part 41, and then the main terminal 5 can be abutted against the upper surface of the blade part 44 in a detachable manner such as bolt fixing or clamping. At this time, the conductive block 8 is locked on the upper surface of the blade part 44 under the pressure of the arch part 41, the conductive block 8 abuts against the main terminal 5 and is connected, and then the auxiliary terminal is inserted along the through hole on the positioning slide plate 3. Thus, the main terminal 5, the conductive block 8, the bus and the auxiliary terminal are all connected. At this time, the bus can supply power to the two terminals respectively, and the bus supplies power or transmits current to the main terminal 5 and the auxiliary terminal. This realizes the power distribution function of "one to many", and the related detection device can be arranged on the auxiliary terminal, so that the auxiliary terminal can directly feedback the current condition of the main terminal 5.

[0024] When the end of the bus is damaged, the positioning slide plate 3 is first slid upward, so that the auxiliary terminal is disengaged from the insertion part 43, and then the main terminal 5 is moved upward, and then the clamping spring 4 is pulled out along the thickness direction of the front cover 1 (as shown in the middle direction). At this time, the clamping spring 4 still clamps the bus through the arch part 41, and the condition of the bus can be judged by observing the structure and surface stain distribution of the clamping spring 4, and a new bus or the end of the bus can be replaced or maintained according to the condition of the bus. Figure 2

[0025] In the above technology, the bus supplies power or transmits current to the main terminal 5 and the auxiliary terminal. This realizes the power distribution function of "one to many", and the related detection device can be arranged on the auxiliary terminal, so that the auxiliary terminal can directly feedback the current condition of the main terminal 5. The detection does not affect the main terminal 5 itself, and the clamping spring 4 can clamp the bus separately, so that a new bus or the end of the bus can be replaced or maintained according to the condition of the bus.

[0026] As a further embodiment of the present application, a pressing seat 7 is arranged between the front cover 1 and the rear cover 2, and the vertical projection of the pressing seat 7 covers the conductive block 8.

[0027] ​Specifically, the compression seat 7 comprises a contraction station for pre-tightening the main terminal 5, and the compression seat 7 further comprises a fixedly arranged folding portion 72. The main terminal 5 is fixedly arranged with a bolt 51 at the end thereof, and the upper end surface of the compression seat 7 is threadedly connected with the bolt 51, and the main terminal 5 is assembled on the compression seat 7. And the clamping spring member 4 is located in the compression seat 7 (as shown in Figure 2 When the compression seat 7 is manually pressed to enter the contraction station (the specific locking manner will be described below), the folding portion 72 provides a contraction allowance for the compression seat 7 at this time, and the compression seat 7 drives the main terminal 5 to move downward and abut against the conductive block 8 in the contraction process, thereby pre-tightening the main terminal 5, so that the main terminal 5 is always pressed on the conductive block 8, and the main terminal 5 is prevented from being separated from the conductive block 8 due to shaking or metal fatigue.

[0028] Further, the front cover 1 and the rear cover 2 are both arranged with screws for assembling the compression seat 7 (as shown in Figure 2 At this time, the front cover 1, the rear cover 2 and the compression seat 7 form a semi-closed chamber therebetween for reducing dust from entering.

[0029] As a further embodiment of the present application, the upper end of the compression seat 7 is fixedly arranged with protrusions 71 to form a concave structure on the upper end surface of the compression seat 7.

[0030] Specifically, the clamping spring member 4 further comprises a wing plate 45 which is symmetrically arranged with the blade portion 44 as the axis, and the wing plate 45 is arranged with a fixing bolt 13 for assembling on the front cover 1. The fixing bolt 13 sequentially penetrates the wing plate 45 and the front cover 1, and the end of the fixing bolt 13 extends to the position of the compression seat 7, and the two sides of the compression seat 7 are fixedly arranged with clamping members 73, and the bottom end of the clamping member 73 is a bevel. The positions of the clamping member 73 and the protrusion 71 correspond, and when the compression seat 7 is pressed, the folding portion 72 is contracted, at this time, the clamping member 73 moves downward and abuts against the fixing bolt 13, the fixing bolt 13 extrudes the bevel of the clamping member 73 to deform the clamping member 73, and then the fixing bolt 13 reaches the upper part of the clamping member 73 along the gap between the clamping member 73 and the folding portion 72 (as shown in Figure 3 At this time, the fixing bolt 13 abuts against the clamping member 73 to fix the position of the clamping member 73, so that the compression seat 7 is contracted as a whole, and the folding portion 72 is folded and bulges to the two sides, so that the gap between the clamping member 73 and the folding portion 72 is shortened, and the fixing bolt 13 is difficult to be taken out.

[0031] When the compression seat 7 needs to be restored, the protrusions 71 are poked to the center of the compression seat 7 with hands, so that the two clamping members 73 swing outward, the distance between the clamping member 73 and the folding portion 72 is expanded to accommodate the fixing bolt to be taken out.

[0032] As further provided by the present application, the side of the spring 4 opposite the conductive block 8 is provided with a plurality of heat dissipation fins 46.

[0033] Specifically, the heat dissipation fins 46 include at least two main forks, wherein the ends of the main forks are bifurcated again to form at least four bifurcations. The ends of the heat dissipation fins 46 pass through the front cover 1 to the outside, wherein since the heat dissipation fins 46 are arranged on the lower surface of the spring 4 and the conductive block 8 is clamped on the upper surface of the spring 4, the heat of the conductive block 8 is quickly transferred to the heat dissipation fins 46, and since the heat dissipation fins 46 have a bifurcated structure, the bifurcations are channels, and when the hot air extends along the length direction of the heat dissipation fins 46 to the outside, the channels between the bifurcations will enter the outside air to make up for the hot air leaving, so that the outside air enters to make up along the width direction of the heat dissipation fins 46, thereby enhancing the heat dissipation effect.

[0034] As further provided by the present application, the rear cover 2 is provided with a bracket 21 for guiding the assembly of the spring 4.

[0035] Specifically, during assembly, the compression seat 7 is first placed in the assembly position, then the front cover 1 is assembled on the front side of the compression seat 7, and then the spring 4 is inserted along the rectangular opening formed on the front cover 1, so that the wing plate 45 abuts against the front cover 1, the front cover 1 and the spring 4 are connected by the fixing bolt 13, and the screws between the front cover 1 and the compression seat 7 are connected. At this time, the arch portion 41 of the spring 4 extends to the rear side, the arch portion 41 corresponds to the bracket 21, then the bracket 21 is pushed into the bracket 21 along the arch portion 41, and the bracket 21 is supported by the elastic deformation of the arch portion 41, so that the assembly is more simple.

[0036] As further provided by the present application, the bracket 21 is rotatably provided with a moving screw 31 for driving the positioning slide plate 3 on both sides.

[0037] Specifically, the bracket 21 is pushed into the bracket 21 along the arch portion 41, and the spring 4 further includes an upper bending portion 42 (as shown in Figure 3 During the process of pushing the bracket 21 along the arch portion 41, the bracket 21 will first extrude and deform the upper bending portion 42, and then the bracket 21 will pass through the upper bending portion 42, and the upper bending portion 42 will play a role in preventing falling, thereby further reducing the difficulty of assembly. Then the rear cover 2 and the compression seat 7 are connected by screws, at this time the positioning slide plate 3 and the bracket 21 are overlapped at the top of the bracket 21, and the bracket 21 abuts against the arch portion 41 to make the arch portion 41 bulge, the distance between the two arch portions 41 is reduced due to the deformation of the bulge, and the clamping effect is better, and the busbar end is stable.

[0038] The moving screw 31 is screwed with the bracket 21, and the moving screw 31 is rotationally arranged on the positioning slide plate 3. When the busbar end needs to be observed, the protrusion 71 is only needed to be actuated to make the compression seat 7 unfold, the compression seat 7 drives the main wiring end 5 to move upwards, and the auxiliary wiring end is driven to move upwards by screwing the moving screw 31 until the auxiliary wiring end is disengaged from the plug-in seat 43, then the clamping spring piece 4 is pulled out along the thickness direction of the front cover 1, the conductive block 8 in the clamping spring piece 4 is maintained or cleaned, and the energization condition of the busbar end is checked, then the position of the clamping spring piece 4 is restored, since the main wiring end 5 and the auxiliary wiring end are vertically displaced upwards and downwards in the above process, the restoration process only needs to return along the original path, and it is not necessary to re-adjust the abutting state and angle, thereby reducing the workload of the later debugging.

[0039] Working principle: in the assembly process, first, the compression seat 7 is placed on the assembly position, then the front cover 1 is assembled on the front side of the compression seat 7, then the clamping spring piece 4 is inserted into the rectangular opening formed on the front cover 1, so that the wing plate 45 abuts against the front cover 1, then the front cover 1 and the clamping spring piece 4 are connected by the fixing bolt 13, then the screws between the front cover 1 and the compression seat 7 are connected, at this time, the arch portion 41 of the clamping spring piece 4 extends to the rear side, the arch portion 41 corresponds to the bracket 21, then the bracket 21 is pushed into the bracket 21 along the arch portion 41.

[0040] During the process of pushing the bracket 21 along the arch portion 41, the bracket 21 will first extrude the upper bending portion 42 to deform, then after the bracket 21 passes through the upper bending portion 42, the upper bending portion 42 plays a role of preventing falling, thereby further reducing the difficulty of assembly. Then the rear cover 2 is connected with the compression seat 7 by screws, at this time, the positioning slide plate 3 is overlapped with the top of the bracket 21, the bracket 21 abuts against the arch portion 41 to make the arch portion 41 bulge, the distance between the two arch portions 41 is reduced due to the deformation of the bulging, thereby better playing a clamping effect and stabilizing the busbar end.

[0041] The moving screw 31 is screwed with the bracket 21, and the moving screw 31 is rotationally arranged on the positioning slide plate 3. When the busbar end needs to be observed, the protrusion 71 is only needed to be actuated to make the compression seat 7 unfold, the compression seat 7 drives the main wiring end 5 to move upwards, and the auxiliary wiring end is driven to move upwards by screwing the moving screw 31 until the auxiliary wiring end is disengaged from the plug-in seat 43, then the clamping spring piece 4 is pulled out along the thickness direction of the front cover 1, the conductive block 8 in the clamping spring piece 4 is maintained or cleaned, and the energization condition of the busbar end is checked, then the position of the clamping spring piece 4 is restored, since the main wiring end 5 and the auxiliary wiring end are vertically displaced upwards and downwards in the above process, the restoration process only needs to return along the original path, and it is not necessary to re-adjust the abutting state and angle, thereby reducing the workload of the later debugging.

[0042] The foregoing merely illustrates some exemplary embodiments of the application, and no doubt numerous modifications and alterations thereto will be apparent to those skilled in the art. Accordingly, the above description is intended for purposes of illustration only and should not be construed as limiting the scope of the application.

Claims

1. A busbar connection structure, comprising a main terminal (5), characterized in that, It includes a conductive block (8) for forming a passage, and a snap ring (4) for receiving the busbar, which includes a blade (44) for abutting the main terminal (5), and the second end of the blade (44) is forked and bent into an S shape to form an arch (41), the arch (41) and the blade (44) abutting against each other to form a snap-fit ​​position for snapping the conductive block (8). The front cover (1) and the rear cover (2) are detachably connected to the first and second ends of the blade (44), respectively, and the two fit together to form a cavity surrounding the conductive block (8); The rear cover (2) is slidably provided with a positioning slide plate (3), and the positioning slide plate (3) is used to fix the auxiliary wiring terminal.

2. The busbar connection structure according to claim 1, characterized in that, It also includes a clamping seat (7) disposed between the front cover (1) and the rear cover (2), the vertical projection of which covers the conductive block (8).

3. The busbar connection structure according to claim 2, characterized in that, The clamping seat (7) includes a shrinking station for pre-tightening the main terminal (5).

4. The busbar connection structure according to claim 1, characterized in that, The upper end of the clamping seat (7) is fixedly provided with protrusions (71) on both sides so that the upper end surface of the clamping seat (7) forms a concave structure.

5. The busbar connection structure according to claim 1, characterized in that, The snap ring (4) also includes a wing plate (45) arranged symmetrically about the blade (44), and the wing plate (45) is provided with a fixing bolt (13) for mounting on the front cover (1).

6. The busbar connection structure according to claim 1, characterized in that, The snap ring (4) has multiple heat dissipation fins (46) on the side facing away from the conductive block (8).

7. The busbar connection structure according to claim 1, characterized in that, The rear cover (2) is provided with a bracket (21) for guiding the assembly of the snap ring (4).

8. The busbar connection structure according to claim 7, characterized in that, The bracket (21) has movable screws (31) on both sides for driving the positioning slide plate (3).

9. A busbar connection structure according to claim 1, characterized in that, The bracket (21) abuts against the arch (41) to make the arch (41) bulge.

10. A metering box, comprising a box body (9) and a busbar disposed within the box body (9), characterized in that, The busbar wiring structure includes the one described in claims 1-9 above, wherein the front cover (1), the clamping seat (7) and the rear cover (2) are assembled in sequence from top to bottom inside the box (9).

Images