A wiring busbar

Abstract

This utility model belongs to the technical field of electrical connection accessories, specifically relating to a wiring busbar. It includes multiple conductive busbars and a protective housing, comprising a first protective housing and a second protective housing. Both housings have multiple positioning and clamping protrusions integrally formed on their opposing inner surfaces. Each positioning and clamping protrusion forms a clamping groove. The positioning and clamping protrusions of the first and second protective housings correspond one-to-one, and the multiple positioning and clamping protrusions located on the inner side of the same protective housing are arranged at an angle. An interphase insulating strip is fitted onto the outer side of the non-connected side of the conductive busbar. Each conductive busbar and its outer interphase insulating strip are housed within the clamping grooves of a set of opposing positioning and clamping protrusions. The first and second protective housings are fixedly connected through the insertion and engagement of the conductive busbars, interphase insulating strips, and clamping grooves. This utility model, through the above technical solution, provides a wiring busbar with a simple structure, convenient assembly, and high reliability.

Description

Technical Field

[0001] This utility model belongs to the technical field of electrical connection accessories, specifically relating to a wiring bus. Background Technology

[0002] Busbars are components used for centralized power distribution in low-voltage power distribution systems. They are widely used in various distribution boxes and control cabinets. They can convert a high-current incoming line to multiple low-current outgoing lines, greatly simplifying the wiring layout of power distribution lines.

[0003] Existing busbars generally employ a split structure fixed with screws, requiring independent brackets, insulating partitions, and numerous fasteners to secure the conductive busbars. This results in structural redundancy and cumbersome assembly procedures. During production and assembly, dozens of screws must be tightened individually, leading to low production efficiency and potential assembly quality instability due to the large number of fasteners. Furthermore, the traditional parallel busbar structure easily causes interference between adjacent conductors, further reducing on-site construction efficiency. Therefore, there is an urgent need for a simple, easy-to-assemble, and highly reliable busbar. Utility Model Content

[0004] This utility model solves the problems mentioned in the background art by using a split protective shell and employing positioning and clamping protrusions and clamping grooves integrally formed and arranged at an angle on the inner side of the shell to insert and fix the conductive busbar with interphase insulating strips between the upper and lower shells.

[0005] The technical solution of this utility model is implemented as follows: a wiring bus, including multiple conductive busbars, and further including: The protective housing includes a first protective housing and a second protective housing. Both of the inner surfaces of the two housings are integrally formed with multiple positioning and clamping protrusions. Each positioning and clamping protrusion forms a clamping groove. The positioning and clamping protrusions of the first protective housing and the second protective housing correspond one-to-one, and the multiple positioning and clamping protrusions located on the inner side of the same protective housing are arranged at an angle. An interphase insulating strip is fitted onto the outside of the non-connected side of the conductive busbar; Each conductive busbar and its outer phase-to-phase insulating strip are housed in the clamping groove of a set of opposing positioning clamping bosses. The first protective housing and the second protective housing are fixedly connected by the insertion and engagement of the conductive busbar, the phase-to-phase insulating strip and the clamping groove.

[0006] The present invention is further configured such that the first protective shell and the second protective shell have the same structure.

[0007] The present invention is further configured such that a plurality of terminals are connected in series on the conductive busbar, and the terminals are screw-type terminals.

[0008] The present invention is further configured such that the positioning and clamping bosses located at both ends of the same protective housing have through locking wiring holes on their side walls. The locking wiring holes are coaxially arranged with the wiring terminals at the ends of the conductive busbars. Screws pass through the locking wiring holes and connect to the wiring terminals, while restricting the longitudinal displacement of the conductive busbars relative to the protective housing.

[0009] The present invention is further configured such that the side walls of two adjacent positioning and clamping bosses located in the same protective housing are connected to each other by integral molding.

[0010] The present invention is further configured to include a transparent protective cover that is detachably connected between the first protective housing and the second protective housing via a snap fastener.

[0011] By adopting the above technical solution, the beneficial effects that this utility model can achieve are: 1. The protective housing is fixed as a whole by plugging and connecting it with the conductive busbar and the phase insulation strip, without the need for additional fasteners, which improves production and assembly efficiency.

[0012] 2. By arranging the positioning clamping bosses at an angle, the terminals of each conductive busbar are spatially staggered, providing ample space for wiring operations and improving on-site construction efficiency.

[0013] 3. By coaxially engaging the locking wiring holes of the positioning clamping bosses at both ends with the wiring terminals at the end of the conductive busbar, the wiring screws simultaneously achieve conductive connection and busbar positioning, thus improving the reliability of the product. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first-direction assembly structure of this utility model; Figure 2 This is a schematic diagram of the second-direction assembly structure of this utility model.

[0015] The attached diagram is labeled as follows: 1. Conductive busbar; 2. First protective housing; 3. Second protective housing; 4. Positioning and clamping boss; 5. Clamping groove; 6. Phase-to-phase insulating strip; 7. Screw; 8. Locking wiring hole; 9. Transparent protective cover. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-2 : Example 1:

[0017] This embodiment provides a wiring bus, including multiple conductive busbars 1, and further including: The protective housing includes a first protective housing 2 and a second protective housing 3. Both of the inner surfaces of the two housings are integrally formed with multiple positioning and clamping protrusions 4. Each positioning and clamping protrusion 4 forms a clamping groove 5. The positioning and clamping protrusions 4 of the first protective housing 2 and the second protective housing 3 correspond one-to-one, and the multiple positioning and clamping protrusions 4 located on the inner side of the same protective housing are arranged at an angle. A phase-to-phase insulating strip 6 is sleeved on the outside of the non-connection side of the conductive busbar 1; Each conductive busbar 1 and its outer phase-to-phase insulating strip 6 are housed together in the clamping groove 5 of a set of opposing positioning clamping bosses 4. The first protective housing 2 and the second protective housing 3 are fixedly connected by the insertion and engagement of the conductive busbar 1, the phase-to-phase insulating strip 6 and the clamping groove 5.

[0018] This specific embodiment provides a wiring bus for centralized power distribution in a low-voltage power distribution system. The wiring bus consists of a protective housing, multiple conductive busbars 1, multiple phase-to-phase insulating strips 6, and a transparent protective cover 9.

[0019] The protective housing serves as the load-bearing base and insulating protective component of the entire wiring bus. It is made of insulating plastic injection molding and has a plate-like structure. It is divided into two parts: the first protective housing 2 and the second protective housing 3. The first protective housing 2 and the second protective housing 3 are arranged vertically opposite each other. The inner surfaces of the two are integrally formed with multiple positioning and clamping protrusions 4 for positioning and clamping the internal conductive components.

[0020] The positioning and clamping protrusion 4 is a structure for fixing conductive components and connecting the upper and lower shells. It extends vertically from the inner side of the protective shell and is a rectangular protrusion. Multiple positioning and clamping protrusions 4 located on the inner side of the same protective shell are arranged at an angle. This arrangement makes the terminals of adjacent conductive busbars 1 spatially staggered to avoid interference between wires during wiring. The sidewalls of two adjacent positioning and clamping protrusions 4 are connected to each other by integral molding to form a continuous protrusion group. This structure can enhance the overall strength of the positioning and clamping protrusions 4 and prevent deformation during clamping. Each positioning and clamping protrusion 4 has a clamping groove 5 on the side facing the other protective shell to accommodate the conductive busbar 1 and the phase insulation strip 6.

[0021] The clamping groove 5 is a groove structure opened inside the positioning clamping boss 4. Its cross-sectional shape is adapted to the cross-sectional shape of the conductive busbar 1 on which the phase-to-phase insulating strip 6 is sleeved. Each clamping groove 5 is aligned with the corresponding clamping groove 5 on the opposite protective shell, forming a complete accommodating space. Through the interference fit with the conductive busbar 1 and the phase-to-phase insulating strip 6, the conductive busbar 1 and the phase-to-phase insulating strip 6 are clamped and fixed.

[0022] The locking wiring hole 8 is a circular through-hole structure that penetrates the side wall of the positioning and clamping boss 4. It is only opened on the side wall of the positioning and clamping boss 4 located at both ends of each protective housing. By limiting the movement of all conductive busbars 1 as a whole, there is no need to open a positioning and clamping boss 4 in the middle, which simplifies the housing manufacturing process. The central axis of the locking wiring hole 8 is coaxial with the central axis of the wiring terminal at the end of the conductive busbar 1. This structure allows the wiring screw 7 to pass through to achieve electrical connection, and also restricts the longitudinal displacement of the conductive busbar 1 through the head of the screw 7.

[0023] The conductive busbar 1, as a component for conducting electrical energy, is made of a metal material with good conductivity. It has an overall long strip plate structure with multiple terminals connected in series along its length. The multiple conductive busbars 1 are arranged in parallel and alternately, and are respectively housed in corresponding clamping slots 5, which are used to distribute one input current into multiple output currents.

[0024] The terminal block is an internally threaded hole structure opened on the conductive busbar 1, arranged along the length of the conductive busbar 1, and used in conjunction with the matching externally threaded screw 7 to crimp the cable core and realize the electrical connection between the conductive busbar 1 and the external cable.

[0025] The phase-to-phase insulating strip 6, serving as an electrical isolation component between adjacent conductive busbars 1, is made of insulating plastic and has an overall L-shaped elongated structure. Its cross-section is L-shaped, with the opening facing the wiring side of the conductive busbar 1. It is fitted over the non-wiring side of the conductive busbar 1, covering the back and one side of the conductive busbar 1. The sides of the phase-to-phase insulating strips 6 of two adjacent conductive busbars 1 are positioned opposite each other, together forming an electrical isolation barrier between adjacent conductive busbars 1. This structure isolates adjacent conductive busbars 1, preventing phase-to-phase short circuits, while not obstructing the wiring terminals and screw 7 operating area, and does not interfere with wiring work or screw 7 tightening operations.

[0026] The transparent protective cover 9 serves as a protective component for the wiring terminals. It is made of transparent insulating plastic and has an overall arc-shaped plate structure. Its curvature is adapted to the tilt angle of the wiring terminals of the inclined conductive busbar 1. The upper and lower edges are integrally formed with a snap-fit ​​structure, which can be detachably connected between the first protective shell 2 and the second protective shell 3 through the snap-fit ​​structure. It covers all the wiring terminals to prevent personnel from accidentally contacting the live wiring terminals and to block foreign objects from entering the wiring area.

[0027] During assembly, firstly, each phase-to-phase insulating strip 6 is fitted onto the non-connected side of the corresponding conductive busbar 1, with the L-shaped opening of the phase-to-phase insulating strip 6 facing the connected side of the conductive busbar 1. This ensures that the phase-to-phase insulating strip 6 completely covers the back and one side of the conductive busbar 1, exposing only the terminals and screw 7 operating area on the connected side. Next, multiple conductive busbars 1 with the phase-to-phase insulating strips 6 fitted onto them are sequentially placed into the clamping grooves 5 of the positioning clamping bosses 4 of the first protective housing 2, ensuring that each conductive busbar 1 and phase-to-phase insulating strip 6 are fully embedded in the corresponding clamping groove 5, with the terminals of the conductive busbar 1 facing outwards. Finally, the second protective housing 3 is aligned with the first protective housing 2, so that the second protective housing 3... The positioning clamping boss 4 corresponds one-to-one with the positioning clamping boss 4 of the first protective housing 2. Then, the second protective housing 3 is pressed towards the first protective housing 2, so that the clamping groove 5 of the second protective housing 3 is respectively fitted onto the other side of each conductive busbar 1 and the phase-to-phase insulating strip 6. At this time, the first protective housing 2 and the second protective housing 3 are fixedly connected by the interference fit between the conductive busbar 1, the phase-to-phase insulating strip 6 and the clamping groove 5, without the need for additional fasteners. Finally, the buckles on the upper and lower edges of the transparent protective cover 9 are aligned with the corresponding buckle slots on the first protective housing 2 and the second protective housing 3, and the transparent protective cover 9 is pressed inward so that the buckles are snapped into the buckle slots, completing the assembly of the entire wiring bus.

[0028] In use, first remove the transparent protective cover 9 from the protective housing to expose the internal wiring terminals; then insert the cores of the input and output cables to be connected into the corresponding wiring terminals, and tighten the matching screws 7 so that the end of the screws 7 crimps the cable cores, thus achieving electrical connection between the cables and the conductive busbar 1; when the screws 7 at the end of the conductive busbar 1 are tightened, the shank of the screws 7 passes through the locking wiring holes 8 on the positioning clamping bosses 4 at both ends of the protective housing and is threadedly connected to the wiring terminals at the end of the conductive busbar 1, while the head of the screws 7 abuts against the outer wall of the positioning clamping bosses 4, thereby limiting the longitudinal displacement of the conductive busbar 1 relative to the protective housing. This longitudinal displacement refers to the displacement along the length of the conductive busbar 1, preventing the conductive busbar 1 from shifting during use; electrical energy is transmitted to the conductive busbar 1 through the input cable, and then distributed to multiple output cables through each wiring terminal, realizing the centralized distribution function of electrical energy.

[0029] The first protective housing 2 and the second protective housing 3 have the same structure, so they can be produced using the same set of injection molds, reducing the types and number of molds and lowering production costs; at the same time, there is no need to distinguish the upper and lower positions of the first protective housing 2 and the second protective housing 3 during assembly, simplifying the assembly operation steps.

[0030] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A wiring busbar comprising a plurality of electrically conductive busbars (1), characterized in that, Also includes: The protective housing includes a first protective housing (2) and a second protective housing (3). Both of the inner surfaces of the two housings are integrally formed with multiple positioning and clamping protrusions (4). Each positioning and clamping protrusion (4) forms a clamping groove (5). The positioning and clamping protrusions (4) of the first protective housing (2) and the second protective housing (3) correspond one-to-one, and the multiple positioning and clamping protrusions (4) located on the inner side of the same protective housing are arranged at an angle. A phase-to-phase insulating strip (6) is fitted onto the outside of the non-connection side of the conductive busbar (1); Each conductive busbar (1) and its outer phase-to-phase insulating strip (6) are housed together in the clamping groove (5) of a set of opposing positioning clamping bosses (4). The first protective housing (2) and the second protective housing (3) are fixedly connected by the insertion and engagement of the conductive busbar (1), the phase-to-phase insulating strip (6) and the clamping groove (5).

2. A wiring bus according to claim 1, wherein, The first protective shell (2) has the same structure as the second protective shell (3).

3. A wiring bus according to claim 1, wherein, Multiple terminals are connected in series on the conductive busbar (1), and the terminals are screw-press type terminals.

4. A wiring bus according to claim 1, wherein, The positioning clamping bosses (4) located at both ends of the same protective housing have through locking wiring holes (8) on their side walls. The locking wiring holes (8) are coaxially arranged with the wiring terminals at the end of the conductive busbar (1). The screws (7) pass through the locking wiring holes (8) and connect to the wiring terminals, while restricting the longitudinal displacement of the conductive busbar (1) relative to the protective housing.

5. A wiring bus according to claim 1, wherein, The sidewalls of two adjacent positioning and clamping bosses (4) located in the same protective shell are connected to each other by integral molding.

6. A wiring bus according to claim 1, wherein, It also includes a transparent protective cover (9) that is detachably connected between the first protective housing (2) and the second protective housing (3) by means of a snap fastener.

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