Deconcentrator
Technical Field
The utility model relates to the technical field of wire dividers for power distribution wiring, in particular to a wire divider.
Background
In the distribution wiring process, the main line is often required to be separated due to various complicated quantity. However, the more break points of the line means the more heat generating points, the higher the probability of failure. In view of this, the use of a break-free splitter in the wiring is advantageous in reducing the occurrence of faults. The large-load deconcentrator is mostly grooved by copper blocks and fixed by screws.
The utility model discloses a quick energy-conserving distribution lines deconcentrator of double-clamp, including the electrically conductive clamp assembly of main line, the electrically conductive clamp assembly of main line includes jacket, passive block and initiative block, still including be used for promoting the block and connect the line branching usefulness promptly plug wire from locking bolt assembly, the jacket surface is equipped with the screw with smooth chamber intercommunication, the screw is directional initiative block other end, promptly plug wire from locking bolt assembly screw the screw from outside to inside, promptly plug wire is from locking bolt assembly in be equipped with the through wires hole, the through wires hole is at least with promptly plug wire from locking bolt assembly outer end intercommunication, the electrically conductive clamp assembly of main line still includes the locking screw, the jacket surface is equipped with elongated hole corresponding to passive block, the locking screw is connected with passive block from outer long hole of passing. The wire divider has good contact and large clamping force, is not easy to generate heat, and is complicated in structure.
If a T-shaped break-free main line distributor sold by a certain online shopping platform is provided with open slots at two ends of a junction block, and the main line or the branch line is horizontally inserted into the slots, the main line is pressed and fixed by fastening screws from the outer sides of the slots, so that a plurality of wires are forced to scatter towards the opening direction of the slots, the fastening screws often need larger moment to ensure the contact between the wires and conductors, however, the large moment easily causes the plurality of wires to be seriously damaged, and one part of the plurality of wires is broken. The small tightening torque can cause insufficient contact pressure, and if the tightening torque is too large, the multi-strand wire is easily damaged. The contact resistance between the wire and the deconcentrator increases, which causes serious heating and affects the electrifying capability of the deconcentrator.
In view of the shortcomings of the prior art, it is particularly important to provide a wire divider with a simple and practical wiring structure, less damage to wires, closer contact with conductors, maximized contact area, smaller contact resistance, less heat generation and better conductivity.
Disclosure of utility model
The utility model aims to avoid the defects of the prior art and provides a deconcentrator. The wire divider has the advantages of simple and practical wiring structure, difficult damage to wires, close contact with conductors, maximized contact area, smaller contact resistance, smaller heating and better conductivity.
The above object of the present utility model is achieved by the following technical means:
The utility model provides a deconcentrator, includes terminal block 1, and terminal block 1 both ends are opened respectively and are U type mouth 2, are main line U type mouth 21 and separated time U type mouth 22 respectively, are equipped with more than one screw hole 3 at U type mouth 2, and the screw hole 3 external diameter is greater than the width of U type mouth 2, and U type mouth 2 is used for being inserted wherein and electric contact by electric wire 4, and screw hole 3 is used for assembling fastening screw 5.
Preferably, two threaded holes 3 are provided, and the two threaded holes 3 are arranged at intervals.
Preferably, the fastening screw 5 is a machine screw.
Optionally, the number of the wires 4 is 1, and the wires 4 are any one of a live wire, a zero wire and a ground wire.
Optionally, the number of the wires 4 is more than 2, and the number of the wires 4 with more than 2 is any one of the same type, namely a live wire, a zero wire and a ground wire.
Preferably, the electric wire 4 is a multi-strand wire.
Optionally, the main U-shaped opening 21 and the branching U-shaped opening 22 have the same size, or the main U-shaped opening 21 is larger than the branching U-shaped opening 22.
Further, the wire divider further comprises a housing 6 covering the junction block 1, and the housing is composed of an upper cover 61 and a lower cover 62.
Preferably, a fixing groove 64 matched with the junction block 1 is arranged inside the shell 6.
Preferably, the two sides of the housing 6 are provided with wire guiding openings 63 corresponding to the wires 4.
The beneficial effects produced by adopting the technical scheme are that:
1) The wiring structure is simple and practical, namely the main wire and the branch wire are respectively inserted into the main wire U-shaped opening 21 and the branch wire U-shaped opening 22 after being uninsulated and are abutted to the bottom of the U-shaped opening 2, a fastening screw 5 is arranged on the threaded hole 3, a certain torque is applied to the fastening screw until the fastening screw axially (vertically) presses the transverse wire, and the wire is fixed at the bottom of the U-shaped opening 2 of the wiring block 1.
2) The end part of the fastening screw is enclosed with the bottom of the U-shaped opening to form a clamping contact part, or the end part of the fastening screw, the bottom of the U-shaped opening and two side parts of the U-shaped opening between the end part of the fastening screw and the bottom of the U-shaped opening are enclosed to form the clamping contact part. Because the external diameter of the threaded hole 3 is larger than the width of the U-shaped opening 2, the electric wire is pressed and only can be matched with the bottom extrusion of the U-shaped opening 2, the contact point of the U-shaped opening and the electric wire is surrounded by the clamping contact part, the electric wire cannot overflow the range of the clamping contact part, and the situation of wire breakage is difficult to occur. The clamping contact part is in closer contact with the conductor, the contact area is maximized, the contact resistance is smaller, the heating is smaller, and the conductivity is better.
3) When the U-shaped opening is provided with an electric wire, the end part of the fastening screw is surrounded with the bottom of the U-shaped opening to form a clamping contact part, the electric wire is generally multi-stranded and the section is circular, the wire diameter of the electric wire is generally close to or smaller than the width of the U-shaped opening so that the electric wire can be inserted into the U-shaped opening, the electric wire is pressed to only fit with the bottom of the U-shaped opening 2, the contact point of the U-shaped opening and the electric wire is just surrounded by the clamping contact part, and because the outer diameter of the threaded hole 3 is larger than the width of the U-shaped opening 2, when the fastening screw applies torque to do fastening action, the situation of wire breakage is not easy to occur. The clamping contact part is in closer contact with the conductor, the contact area is maximized, the contact resistance is smaller, the heating is smaller, and the conductivity is better.
4) When two electric wires are arranged at the U-shaped opening, the end part of the fastening screw, the bottom part of the U-shaped opening and the two side parts of the U-shaped opening between the end part of the fastening screw and the bottom part of the U-shaped opening enclose to form a clamping contact part, the electric wires are generally multi-strand and have circular sections, the wire diameter of the electric wires is generally close to or smaller than the width of the U-shaped opening so that the electric wires can be inserted into the U-shaped opening, the first electric wires contacted with the end part of the fastening screw are pressed to enable the second electric wires to be in fit with the bottom of the U-shaped opening 2, and the contact points of the U-shaped opening and the two electric wires are just enclosed by the clamping contact part. The clamping contact part is in closer contact with the conductor, the contact area is maximized, the contact resistance is smaller, the heating is smaller, and the conductivity is better.
Drawings
FIG. 1 is a schematic diagram of a junction block structure;
FIG. 2 is a cross-sectional view of the junction block after tightening the screw;
FIG. 3 is a schematic diagram of a deconcentrator;
FIG. 4 is a cross-sectional view of a wire divider;
FIG. 5 is a schematic view of a U-shaped opening with one wire;
FIG. 6 is a schematic view of two wires arranged in a U-shaped opening;
Fig. 7 is a schematic view of the structure of the housing.
Wherein, the wiring block 1;U is provided with a shaped opening 2, a main U-shaped opening 21, a branching U-shaped opening 22, a threaded hole 3, an electric wire 4, a fastening screw 5, a shell 6, an upper cover 61, a lower cover 62, an electric wire guiding opening 63 and a fixing groove 64.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment shows a deconcentrator, as shown in fig. 1-7, which comprises a junction block 1, wherein two ends of the junction block 1 are respectively provided with a U-shaped opening 2, namely a main U-shaped opening 21 and a deconcentration U-shaped opening 22, the U-shaped opening 2 is provided with more than one threaded hole 3, the outer diameter of the threaded hole 3 is larger than the width of the U-shaped opening 2, the U-shaped opening 2 is used for being inserted into and electrically contacted with an electric wire 4, and the threaded hole 3 is used for assembling a fastening screw 5.
The working principle is that after the main wire and the branch wire are insulated, the main wire and the branch wire are respectively inserted into the main wire U-shaped port 21 and the branch wire U-shaped port 22 to be close to the bottom of the U-shaped port 2, a fastening screw 5 is arranged on the threaded hole 3, a certain torque is applied to the fastening screw until the fastening screw axially (vertically) presses the transverse wire, and the wire is fixed at the bottom of the U-shaped port 2 of the wiring block 1.
The technical effects are as follows:
The clamping contact part is formed by enclosing the end part of the fastening screw and the bottom of the U-shaped opening, or the clamping contact part is formed by enclosing the end part of the fastening screw, the bottom of the U-shaped opening and two side parts of the U-shaped opening between the end part of the fastening screw and the bottom of the U-shaped opening. Because the external diameter of the threaded hole 3 is larger than the width of the U-shaped opening 2, the electric wire is pressed and only can be matched with the bottom extrusion of the U-shaped opening 2, the contact point of the U-shaped opening and the electric wire is surrounded by the clamping contact part, the electric wire cannot overflow the range of the clamping contact part, and the situation of wire breakage is difficult to occur. The clamping contact part is in closer contact with the conductor, the contact area is maximized, the contact resistance is smaller, the heating is smaller, and the conductivity is better.
For example, as shown in fig. 1-6, the number of the threaded holes 3 is two, and the two threaded holes 3 are arranged at intervals.
For example, as shown in fig. 5-6, the fastening screw 5 is a machine screw.
As an example, as shown in fig. 5, as a conventional splitter, the number of the wires 4 is 1, that is, 1 main wire is provided in the main wire U-shaped port 21,1 branch wire is provided in the branch wire U-shaped port 22, and the wires 4 are any one of a live wire, a neutral wire and a ground wire.
As shown in fig. 5, taking a U-shaped opening as an example, the end of the fastening screw and the bottom of the U-shaped opening enclose a clamping contact portion, the wire is generally multi-stranded and has a circular section, the wire diameter of the wire is generally close to or smaller than the width of the U-shaped opening so that the wire can be inserted into the U-shaped opening, the wire is pressed to only fit the bottom of the U-shaped opening 2, the contact point between the U-shaped opening and the wire is just enclosed by the clamping contact portion, and because the outer diameter of the threaded hole 3 is larger than the width of the U-shaped opening 2, when the fastening screw applies torque to perform fastening action, the wire is not easy to break. The clamping contact part is in closer contact with the conductor, the contact area is maximized, the contact resistance is smaller, the heating is smaller, and the conductivity is better.
For example, as shown in fig. 6, in order to meet the requirement of higher power transmission, the number of the wires 4 is more than 2, that is, more than 2 main wires are arranged at the main wire U-shaped port 21, more than 2 branch wires are arranged at the branch wire U-shaped port 22, and more than 2 wires 4 are of the same type, namely, a live wire, a neutral wire and a ground wire.
As shown in fig. 6, two wires are set in the U-shaped opening, the end of the fastening screw, the bottom of the U-shaped opening, and two sides of the U-shaped opening between the end of the fastening screw and the bottom of the U-shaped opening are enclosed to form a clamping contact portion, the wires are generally multi-stranded and have a circular section, the wire diameter of the wires is generally close to or smaller than the width of the U-shaped opening so that the wires can be inserted into the U-shaped opening, the first wire contacting with the end of the fastening screw is pressed to enable the second wire to be in fit with the bottom of the U-shaped opening 2, and the contact point between the U-shaped opening and the two wires is just enclosed by the clamping contact portion. The clamping contact part is in closer contact with the conductor, the contact area is maximized, the contact resistance is smaller, the heating is smaller, and the conductivity is better.
Similarly, more than 3 wires are arranged at the U-shaped opening, and reference is made to the embodiment that two wires are arranged at the U-shaped opening.
In general, the live line, the neutral line, and the ground line are each provided with a corresponding splitter.
Illustratively, not shown, the wire 4 is a multi-strand wire.
In an alternative embodiment, as shown in fig. 1-4, the main U-shaped port 21 is the same size as the branching U-shaped port 22.
In an alternative embodiment, not shown in the figures, the main U-shaped port 21 is larger than the branching U-shaped port 22. Generally, the deconcentrator provides power for the terminal electrical appliance, has smaller requirements on the electrical performance of the electrical wires, and selects the distribution wires with smaller wire diameters and the corresponding relatively smaller distribution U-shaped ports as reasonable and economical choices.
As shown in fig. 3-6, the wire-divider further comprises a housing 6 covering the junction block 1, the housing being composed of an upper cover 61 and a lower cover 62.
Illustratively, as shown in fig. 7, a fixing groove 64 matched with the junction block 1 is provided inside the housing 6.
As shown in fig. 3-6, for example, the two sides of the housing 6 are provided with wire guiding openings 63 corresponding to the wires 4, and the wires are led out from the corresponding guiding openings 63.
The foregoing description of the preferred embodiments of the present utility model is not intended to limit the scope of the claims, which follow, as defined in the claims.