Distribution box cabinet wiring terminal subassembly
Technical Field
The invention relates to the technical field of distribution box assemblies, in particular to a distribution box cabinet wiring terminal assembly.
Background
The connecting terminal is used for conveniently connecting the wires, and is actually a section of metal sheet sealed in insulating plastic, both ends of the metal sheet are provided with holes for inserting the wires, and screws are used for fastening or loosening, for example, two wires are connected at times and disconnected at times, and then the two wires can be connected by using the terminal and disconnected at any time without welding or winding the two wires together, so that convenience and rapidness are realized. The novel power cable is suitable for interconnection of a large number of wires, and has special terminal blocks and terminal boxes in the power industry, wherein the terminal blocks are all single-layer, double-layer, current, voltage, common and breakable.
A large number of terminal strips are usually required to be arranged in the electrical cabinet for connecting wires, but the existing terminal strips are usually in a linear shape when being arranged in the electrical cabinet, and the space in the electrical cabinet cannot be utilized to a greater extent due to the limited space in the electrical cabinet, so that more terminal strips cannot be arranged in the limited space in the electrical cabinet; the crimping area of its current terminal row internal connection wire relies on the top of screw to compress tightly completely, and its crimping effect is relatively poor, produces electrically conductive unsmooth easily.
In order to install the terminal block in the electrical cabinet to a greater extent in a limited space, the terminal block ensures the connection effect of the wires; the invention provides a wiring terminal assembly of a power distribution cabinet.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the following technical scheme that the distribution cabinet wiring terminal assembly comprises an electrical cabinet, a terminal piece, a limiting unit and a clamping unit, wherein a sliding groove is uniformly formed in the inner side wall of the electrical cabinet from top to bottom; the limiting units are uniformly arranged on the outer wall of the rear end in the electrical cabinet and matched with the terminal pieces; the limiting units are identical in structure and different in size, and are arranged on the inner wall of the rear end of the electric cabinet in an arc-shaped arrangement mode; wherein:
the terminal piece comprises a sliding clamping block, a fixed spring, a wiring block, a regulating bolt, a pressing module and a rubber connecting plate; the sliding fixture blocks are uniformly arranged in a sliding groove of the electrical cabinet, a trapezoidal fixing groove is formed in the rear end of each sliding fixture block, and a certain radian is formed in the port of each trapezoidal fixing groove; a plurality of wiring blocks are respectively arranged between the two opposite sliding clamping blocks through fixed springs and rubber connecting plates, the wiring blocks are respectively fixed with the rubber connecting plates through the fixed springs, the fixed springs are arranged at the front ends of the rubber connecting plates, and the rubber connecting plates are respectively connected with the wiring blocks and the sliding clamping blocks through pin shafts; the wiring block is internally provided with mutually vertical round through holes; and a regulating bolt is arranged in a longitudinal circular through hole on the junction block in a threaded connection mode; a pressing module is arranged in the transverse round through hole on the junction block; according to actual installation requirements, a certain number of wiring blocks are connected between two opposite sliding clamping blocks, and the sliding clamping blocks are pushed into the electrical cabinet to be fixed through a clamping unit; the plurality of terminal blocks on the terminal piece are connected in a movable connection mode, so that the whole row of terminal strips with the width larger than the internal width of the electric cabinet can be arranged in the electric cabinet; the utilization efficiency of the inner space of the electrical cabinet is improved.
The pressing module comprises a pressing spring, a pressing column and a pressing sheet; the pressing columns are symmetrically arranged on the inner wall of the transverse circular through hole of the wiring block in a sliding fit mode, the bottom ends of the pressing columns are connected to the side wall of the wiring block through pressing springs, and pressing sheets are arranged at the top ends of the pressing columns; the compression module improves the compression joint area of the wire, ensures the reliable contact of the end of the wire and can ensure that the wire can pass enough current.
The clamping unit comprises a supporting spring, a groove-shaped clamping piece and an outer supporting spring, the groove-shaped clamping piece is arranged on the inner wall of the rear end of the chute of the electric cabinet in a sliding fit and engagement mode, and the groove-shaped clamping piece is connected with the inner wall of the electric cabinet through the supporting spring; the middle part of the groove-shaped clamping piece is provided with a rectangular groove, and an external supporting spring is arranged at the rectangular groove of the groove-shaped clamping piece to connect two ends of the groove-shaped clamping piece; the groove-shaped clamping piece is inserted into the trapezoidal fixing groove of the sliding clamping block, and the groove-shaped clamping piece is fixed in the sliding clamping block under the action of the supporting spring; the clamping unit is simple in structure and good in fixing effect, and the terminal piece is stably connected inside the electric cabinet through clamping.
The limiting unit comprises an outer limiting barrel, an inner limiting sleeve, a limiting spring and a rubber block strip; the outer limiting cylinder is arranged on the inner wall of the rear end in the electrical cabinet, an inner limiting sleeve is arranged in the outer limiting cylinder in a sliding fit mode, and a limiting spring is arranged in the outer limiting cylinder; the inner walls of the rubber block strips are respectively connected to the inner walls of the inner limiting sleeves through hinges; the terminal piece is bent to a certain radian through the limiting unit, and the terminal piece is stably installed inside the electric appliance cabinet.
Preferably; the pressing sheet is of a corrugated structure and is made of copper material; the copper material with the pressing pieces arranged in the corrugated structure is convenient for the two pressing pieces to be matched with each other to press the end of the wire harness, so that the crimping area of the wire is increased, the end of the wire is ensured to be reliably contacted, and the wire is ensured to pass through enough current.
Preferably; the outer wall of the groove-shaped clamping piece is provided with a ball in a sliding fit mode; the groove-shaped clamping piece is matched with the sliding clamping block through the balls arranged on the outer wall of the groove-shaped clamping piece, so that the sliding clamping block is fixed on the electric cabinet conveniently.
Preferably; the inner wall of the trapezoidal fixed groove of the sliding fixture block is provided with a rubber block; the inner wall of the trapezoidal fixed groove of the sliding clamping block is provided with the rubber block, so that the groove-shaped clamping piece can be prevented from being damaged due to mutual collision with the inner wall of the sliding clamping block, and the service life of the groove-shaped clamping piece is prolonged.
Advantageous effects
Firstly, a plurality of wiring blocks on the terminal piece are connected in a movable connection mode, so that the whole row of terminal rows larger than the internal width of the electric cabinet can be installed in the electric cabinet; the utilization efficiency of the internal space of the electrical cabinet is improved;
the compression module improves the compression area of the wire, ensures the reliable contact of the end of the wire and can ensure that the wire can pass enough current;
the clamping unit is simple in structure and good in fixing effect, and the terminal piece is stably connected to the interior of the electrical cabinet through the clamping effect.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of the invention at A in FIG. 2;
fig. 4 is a partial enlarged view of the invention at B in fig. 2.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings. In this process, the width of the lines or the size of the components in the drawings may be exaggerated for clarity and convenience of description.
The following terms are defined based on the functions of the present invention, and may be different depending on the intention of the user or the operator or the convention. Therefore, these terms are defined based on the entire contents of the present specification.
As shown in fig. 1 to 4, a terminal assembly of a distribution cabinet comprises an electrical cabinet 1, a terminal member 2, a limiting unit 3 and a clamping unit 4, wherein a chute is uniformly arranged on the inner side wall of the electrical cabinet 1 from top to bottom, the clamping unit 4 is arranged in the chute of the electrical cabinet 1, the terminal member 2 is arranged in the chute of the electrical cabinet 1 in a sliding fit manner, and the terminal member 2 is fixed in the electrical cabinet 1 through the clamping unit 4; the limiting units 3 are uniformly arranged on the outer wall of the rear end in the electrical cabinet 1, and the limiting units 3 are matched with the terminal pieces 2; the limiting units 3 have the same structure and different sizes, and the limiting units 3 are arranged on the inner wall of the rear end of the electric cabinet 1 in an arc-shaped arrangement mode; wherein:
the clamping unit 4 comprises a supporting spring 41, a groove-shaped clamping piece 42 and an outer supporting spring 43, the groove-shaped clamping piece 42 is arranged on the inner wall of the rear end of the sliding groove of the electric cabinet 1 in a sliding fit manner, and the groove-shaped clamping piece 42 is connected with the inner wall of the electric cabinet 1 through the supporting spring 41; a rectangular groove is formed in the middle of the groove-shaped clamping piece 42, and an outer supporting spring 43 is arranged at the rectangular groove of the groove-shaped clamping piece 42 to connect two ends of the groove-shaped clamping piece 42; the outer wall of the groove-shaped clamping piece 42 is provided with a ball in a sliding fit manner; the groove-shaped clamping piece 42 is matched with the sliding fixture block 21 by arranging the balls on the outer wall of the groove-shaped clamping piece 42, so that the sliding fixture block 21 is fixed on the electrical cabinet 1 conveniently; the groove-shaped clamping piece 42 is inserted into the trapezoidal fixing groove of the sliding fixture block 21, and the groove-shaped clamping piece 42 is fixed in the sliding fixture block 21 under the action of the supporting spring 41; the clamping unit 4 is simple in structure and good in fixing effect, and the terminal piece 2 is stably connected inside the electrical cabinet 1 through clamping.
The limiting unit 3 comprises an outer limiting cylinder 31, an inner limiting sleeve 32, a limiting spring 33 and a rubber block strip 34; the outer limiting cylinder 31 is arranged on the inner wall of the rear end in the electrical cabinet 1, an inner limiting sleeve 32 is arranged in the outer limiting cylinder 31 in a sliding fit mode, and a limiting spring 33 is arranged in the outer limiting cylinder 31; the inner walls of the rubber strips 34 are respectively connected to the inner wall of the inner limiting sleeve 32 through hinges; the terminal piece 2 is bent to a certain radian through the limiting unit 3, and the terminal piece 2 is stably installed in the electric appliance cabinet 1.
The terminal element 2 comprises a sliding fixture block 21, a fixed spring 22, a wiring block 23, a regulating bolt 24, a pressing module 25 and a rubber connecting plate 26; the sliding fixture block 21 is uniformly arranged in a sliding groove of the electrical cabinet 1, a trapezoidal fixing groove is arranged at the rear end of the sliding fixture block 21, and a certain radian is arranged at the port of the trapezoidal fixing groove; a rubber block is arranged on the inner wall of the trapezoidal fixing groove of the sliding fixture block 21; the rubber block is arranged on the inner wall of the trapezoidal fixed groove of the sliding fixture block 21, so that the groove-shaped clamping piece 42 and the inner wall of the sliding fixture block 21 are prevented from being damaged due to mutual collision, and the service life of the groove-shaped clamping piece 42 is prolonged; a plurality of wiring blocks 23 are respectively arranged between the two opposite sliding fixture blocks 21 through fixed springs 22 and rubber connecting plates 26, the plurality of wiring blocks 23 are respectively fixed through the fixed springs 22 and the rubber connecting plates 26, the fixed springs 22 are arranged at the front ends of the rubber connecting plates 26, and the rubber connecting plates 26 are respectively connected with the wiring blocks 23 and the sliding fixture blocks 21 through pin shafts; the wiring block 23 is internally provided with mutually vertical round through holes; and a regulating bolt 24 is arranged in a longitudinal circular through hole on the junction block 23 in a threaded connection mode; a pressing module 25 is arranged in the transverse round through hole on the wiring block 23; according to actual installation requirements, a certain number of wiring blocks 23 are connected between two opposite sliding fixture blocks 21, and the sliding fixture blocks 21 are pushed into the electrical cabinet 1 to be fixed through the clamping unit 4; the plurality of wiring blocks 23 on the terminal piece 2 are connected in a movable connection mode, so that the whole row of terminal rows larger than the internal width of the electrical cabinet 1 can be installed in the electrical cabinet 1; the utilization efficiency of the internal space of the electrical cabinet 1 is improved.
The pressing module 25 comprises a pressing spring 251, a pressing column 252 and a pressing sheet 253; the pressing columns 252 are symmetrically arranged on the inner wall of the transverse circular through hole of the wiring block 23 in a sliding fit manner, the bottom ends of the pressing columns 252 are connected to the side wall of the wiring block 23 through pressing springs 251, pressing sheets 253 are arranged at the top ends of the pressing columns 252, the pressing sheets 253 are of a corrugated structure, and the pressing sheets 253 are made of copper materials; the pressing pieces 253 are made of copper materials with corrugated structures, so that the two pressing pieces 253 are matched with each other to press the end of the wire harness, the crimping area of the wire is increased, the end of the wire is guaranteed to be in reliable contact, and the wire can pass through enough current.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.