Wire divider

Abstract

The utility model discloses a deconcentrator, which relates to the technical field of deconcentrators for power distribution wiring and comprises a wiring block (1), two ends of the wiring block (1) are respectively provided with a U-shaped opening (2), each U-shaped opening (2) is provided with more than one threaded hole (3), the outer diameter of each threaded hole (3) is larger than the width of each U-shaped opening (2), each U-shaped opening (2) is used for being inserted by a wire (4) and electrically contacted with the wire (4), and each threaded hole (3) is used for assembling a fastening screw (5). The main wire and the branch wire are respectively inserted into the main wire U-shaped opening and the branch wire U-shaped opening after being deinsulated and abut against the bottoms of the U-shaped openings, a fastening screw is arranged on the threaded hole, a certain torque is applied to the fastening screw until the fastening screw presses the wire, and the wire is fixed at the bottom of the U-shaped opening of the wiring block. When the electric wire is pressed, only the bottom of the U-shaped opening is extruded, and the contact point of the U-shaped opening and the electric wire is enclosed by the clamping contact part, so that the electric 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 heat is smaller, and the conductivity is better.

Description

Technical Field

[0001] The utility model relates to the technical field of line splitters for power distribution wiring, in particular to a line splitter. Background Art

[0002] In the process of power distribution wiring, due to the large number of various complexities, the main line often needs to be divided. However, the more disconnection points there are in the line, the more hot spots there are, and the higher the probability of failure. In view of this, the use of non-disconnection splitters in wiring is helpful to reduce the occurrence of failures. Most large-load splitters use copper blocks to slot and are fixed with screws.

[0003] For example, Chinese patent CN206461103U discloses a double-clamp fast energy-saving power distribution line splitter, including a main line conductive clamp assembly, which includes a clamp outer sleeve, a passive wire pressing block and an active wire pressing block, and also includes a plug-in self-locking bolt assembly for pushing the wire pressing block and connecting the branch line, and the surface of the clamp outer sleeve is provided with a screw hole connected to the sliding cavity, and the screw hole points to the other end of the active wire pressing block, that is, the plug-in self-locking bolt assembly is screwed into the screw hole from the outside to the inside, and the plug-in self-locking bolt assembly is provided with a threading hole, and the threading hole is at least connected to the outer end of the plug-in self-locking bolt assembly; the main line conductive clamp assembly also includes a locking screw, and the surface of the clamp outer sleeve is provided with an elongated hole corresponding to the passive wire pressing block, and the locking screw passes through the elongated hole from the outside to connect with the passive wire pressing block. It has good contact and a large clamping force and is not easy to heat up, but its splitter structure is cumbersome and complicated.

[0004] For example, a T-shaped main line splitter sold on an online shopping platform has open slots at both ends of the terminal block. The main line or branch line is inserted horizontally into the slot, and the main line is fixed with a tightening screw from the outside of the slot, which will cause the multi-strand wires to spread out toward the opening of the slot after being stressed. In order to ensure the contact between the wires and the conductors, tightening the screws often requires a large torque. However, a large torque can easily cause serious damage to the multi-strand wires, causing part of the multi-strand wires to break. A small tightening torque will lead to insufficient contact pressure, and if the tightening torque is too large, it will easily cause damage to the multi-strand wires. The contact resistance between the wire and the splitter increases, resulting in severe heat generation, which affects the power-carrying capacity of the splitter.

[0005] In view of the shortcomings of the existing technology, it is particularly important to provide a splitter with a simple and practical wiring structure, which is not easy to damage the wires, has a closer contact with the conductors, maximizes the contact area, has lower contact resistance, lower heat generation, and better conductive performance. Utility Model Content

[0006] The purpose of the utility model is to avoid the shortcomings of the prior art and provide a wire splitter. The wire splitter has a simple and practical wiring structure, is not easy to damage the wires, has a closer contact with the conductor, maximizes the contact area, has a smaller contact resistance, less heat generation, and better conductivity.

[0007] The above-mentioned purpose of the utility model is achieved by the following technical means:

[0008] A wire splitter comprises a junction block 1, wherein two ends of the junction block 1 are respectively provided with U-shaped openings 2, namely a main line U-shaped opening 21 and a branch line U-shaped opening 22, wherein the U-shaped opening 2 is provided with one or more threaded holes 3, wherein the outer diameter of the threaded holes 3 is greater than the width of the U-shaped opening 2, the U-shaped opening 2 is used for inserting an electric wire 4 thereinto and making electrical contact therewith, and the threaded holes 3 are used for assembling fastening screws 5.

[0009] Preferably, there are two threaded holes 3, and the two threaded holes 3 are arranged at intervals.

[0010] Preferably, the fastening screw 5 is a machine screw.

[0011] Optionally, there is one wire 4, and the wire 4 is any one of the following: a live wire, a neutral wire, and a ground wire.

[0012] Optionally, there are more than two wires 4, and the more than two wires 4 are of the same type and are any one of the following: a live wire, a neutral wire, and a ground wire.

[0013] Preferably, the electric wire 4 is a multi-strand conductor.

[0014] Optionally, the main line U-shaped opening 21 and the branch line U-shaped opening 22 are the same size, or the main line U-shaped opening 21 is larger than the branch line U-shaped opening 22 .

[0015] Furthermore, the splitter also includes a shell 6 covering the junction block 1 , and the shell is composed of an upper cover 61 and a lower cover 62 .

[0016] Preferably, a fixing groove 64 matching the junction block 1 is provided inside the housing 6 .

[0017] Preferably, wire guide openings 63 corresponding to the wires 4 are provided on both sides of the shell 6 .

[0018] The beneficial effects of adopting the above technical solution are:

[0019] 1). The wiring structure is simple and practical: after the insulation of the main wire and the branch wire is removed, they are respectively inserted into the main wire U-shaped opening 21 and the branch wire U-shaped opening 22, close to the bottom of the U-shaped opening 2, and the threaded hole 3 is tightened with a screw 5. A certain torque is applied to the tightening screw until the tightening screw axially (vertically) presses the horizontal wire to fix the wire at the bottom of the U-shaped opening 2 of the wiring block 1.

[0020] 2). The clamping contact portion is formed by the end of the fastening screw and the bottom of the U-shaped opening; or the end of the fastening screw, the bottom of the U-shaped opening, and the two sides of the U-shaped opening between the end of the fastening screw and the bottom of the U-shaped opening form a clamping contact portion. Since the outer diameter of the threaded hole 3 is larger than the width of the U-shaped opening 2, the wire is compressed to fit only the bottom of the U-shaped opening 2, and the contact point between the U-shaped opening and the wire is surrounded by the clamping contact portion. The wire will not overflow from the clamping contact portion, and it is not easy for the wire to break. This clamping contact portion has a closer contact with the conductor, maximizes the contact area, has a smaller contact resistance, less heat, and better conductivity.

[0021] 3). When a wire is set in the U-shaped mouth, the clamping contact part formed by the end of the fastening screw and the bottom of the U-shaped mouth is generally multi-strand and circular in cross section. The wire diameter is generally close to or smaller than the width of the U-shaped mouth to facilitate the insertion of the wire into the U-shaped mouth. The wire is compressed to only fit the bottom of the U-shaped mouth 2. The contact point between the U-shaped mouth and the wire is just surrounded by the clamping contact part. Since the outer diameter of the threaded hole 3 is larger than the width of the U-shaped mouth 2, when the fastening screw applies torque to tighten, it is not easy for the wire to break. The clamping contact part has a closer contact with the conductor, maximizes the contact area, has a smaller contact resistance, less heat, and better conductivity.

[0022] 4). When two wires are set in the U-shaped mouth, the end of the fastening screw, the bottom of the U-shaped mouth, and the two sides of the U-shaped mouth between the end of the fastening screw and the bottom of the U-shaped mouth are surrounded to form a clamping contact part. The wires are generally multi-strand and circular in cross section. The wire diameter is generally close to or smaller than the width of the U-shaped mouth to facilitate the insertion of the wires into the U-shaped mouth. The first wire in contact with the end of the fastening screw is pressed to make the second wire fit the bottom of the U-shaped mouth 2 and squeezed. The contact point between the U-shaped mouth and the two wires is just surrounded by the clamping contact part. Since the outer diameter of the threaded hole 3 is larger than the width of the U-shaped mouth 2, when the fastening screw applies torque to tighten, it is not easy for the wire to break. The clamping contact part has a closer contact with the conductor, maximizes the contact area, has a smaller contact resistance, less heat, and better conductivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the wiring block structure;

[0024] Figure 2 This is a cross-sectional view of the terminal block after tightening the screws;

[0025] Figure 3 It is a schematic diagram of the splitter;

[0026] Figure 4 is a cross-sectional view of the splitter;

[0027] Figure 5 It is a schematic diagram of setting a wire in a U-shaped opening;

[0028] Figure 6 It is a schematic diagram of setting two wires in a U-shaped opening;

[0029] Figure 7 It is a schematic diagram of the shell structure.

[0030] Among them, the terminal block 1; U-shaped opening 2; main line U-shaped opening 21; branch line U-shaped opening 22; threaded hole 3; wire 4; fastening screw 5; shell 6; upper cover 61; lower cover 62; wire guide opening 63; fixing groove 64. DETAILED DESCRIPTION

[0031] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] This embodiment shows a splitter, such as Figure 1-7 As shown, it includes a terminal block 1, and U-shaped openings 2 are respectively opened at both ends of the terminal block 1, namely a main line U-shaped opening 21 and a branch line U-shaped opening 22. One or more threaded holes 3 are provided in the U-shaped opening 2, and 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 the wire 4 to be inserted therein and electrically contacted therewith, and the threaded hole 3 is used for assembling the fastening screw 5.

[0033] Working principle: After the insulation of the main wire and the branch wire is removed, they are inserted into the main wire U-shaped opening 21 and the branch wire U-shaped opening 22 respectively, close to the bottom of the U-shaped opening 2, and the threaded hole 3 is tightened with a screw 5. A certain torque is applied to the tightening screw until the tightening screw axially (vertically) presses the horizontal wire to fix the wire at the bottom of the U-shaped opening 2 of the terminal block 1.

[0034] Technical effect:

[0035] The clamping contact portion is formed by the end of the fastening screw and the bottom of the U-shaped opening; or the end of the fastening screw, the bottom of the U-shaped opening, and the two sides of the U-shaped opening between the end of the fastening screw and the bottom of the U-shaped opening form a clamping contact portion. Since the outer diameter of the threaded hole 3 is larger than the width of the U-shaped opening 2, the wire is compressed to fit only the bottom of the U-shaped opening 2, and the contact point between the U-shaped opening and the wire is surrounded by the clamping contact portion. The wire will not overflow from the clamping contact portion, and it is not easy for the wire to break. This clamping contact portion has a closer contact with the conductor, maximizes the contact area, has a smaller contact resistance, less heat, and better conductivity.

[0036] For example, Figure 1-6 As shown, there are two threaded holes 3, and the two threaded holes 3 are arranged at intervals.

[0037] For example, Figure 5-6 As shown, the fastening screw 5 is a machine screw.

[0038] For example, Figure 5 As shown, as a conventional splitter, the wire 4 is one, that is, one main wire is arranged at the main wire U-shaped opening 21, and one branch wire is arranged at the branch wire U-shaped opening 22. The wire 4 is any one of the following: a live wire, a neutral wire, and a ground wire.

[0039] like Figure 5 As shown, taking the U-shaped opening as an example, the clamping contact part formed by the end of the fastening screw and the bottom of the U-shaped opening, the wire is generally multi-strand and circular in cross section, and the wire diameter is generally close to or smaller than the width of the U-shaped opening to facilitate the insertion of the wire into the U-shaped opening. The wire is compressed to only fit the bottom of the U-shaped opening 2, and the contact point between the U-shaped opening and the wire is just surrounded by the clamping contact part. Since 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 tighten, it is not easy for the wire to break. The clamping contact part has a closer contact with the conductor, maximizes the contact area, has a smaller contact resistance, less heat generation, and better conductivity.

[0040] For example, Figure 6 As shown, in order to meet the requirements of greater power transmission, there are more than two wires 4, that is, more than two main wires are arranged at the main line U-shaped mouth 21, and more than two branch wires are arranged at the branch line U-shaped mouth 22. The more than two wires 4 are of the same type and are any one of the following: live wire, neutral wire and ground wire.

[0041] like Figure 6 As shown, taking the U-shaped opening as an example, the end of the fastening screw, the bottom of the U-shaped opening, and the 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-strand and circular in cross section. Generally, the wire diameter is close to or smaller than the width of the U-shaped opening to facilitate the insertion of the wires into the U-shaped opening. The first wire in contact with the end of the fastening screw is pressed to make the second wire fit the bottom of the U-shaped opening 2 and squeezed. The contact point between the U-shaped opening and the two wires is just enclosed by the clamping contact portion. Since 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 tighten, it is not easy for the wire to break. The clamping contact portion has a closer contact with the conductor, maximizes the contact area, has a smaller contact resistance, less heat generation, and better conductivity.

[0042] Similarly, if more than three wires are arranged at the U-shaped mouth, please refer to the above-mentioned embodiment of arranging two wires at the U-shaped mouth.

[0043] Generally, the live wire, neutral wire, and ground wire are each equipped with their own splitter.

[0044] By way of example, and not shown in the figures, the electric wire 4 is a multi-strand conductor.

[0045] Optional embodiments, such as Figure 1-4 As shown, the main line U-shaped opening 21 and the branch line U-shaped opening 22 are the same size.

[0046] In an optional embodiment, not shown in the figure, the main line U-shaped opening 21 is larger than the branch line U-shaped opening 22. Generally, the branching device provides power to the terminal electrical appliances, and has relatively low requirements on the electrical performance of the wires. It is a more reasonable and economical choice to select a branch line with a smaller wire diameter and a corresponding relatively smaller branch line U-shaped opening.

[0047] For example, Figure 3-6 As shown, the splitter 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 .

[0048] For example, Figure 7 As shown, a fixing groove 64 matching with the wiring block 1 is provided inside the housing 6 .

[0049] For example, Figure 3-6 As shown, both sides of the housing 6 are provided with wire guide openings 63 corresponding to the wires 4 , and the wires are led out from the corresponding guide openings 63 .

[0050] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A splitter, comprising a junction block (1), characterized in that: The junction block (1) has U-shaped openings (2) at both ends, which are respectively a main line U-shaped opening (21) and a branch line U-shaped opening (22). The U-shaped opening (2) is provided with one or more threaded holes (3). The outer diameter of the threaded hole (3) is greater than the width of the U-shaped opening (2). The U-shaped opening (2) is used for inserting an electric wire (4) therein and making electrical contact therewith. The threaded hole (3) is used for assembling a fastening screw (5).

2. The splitter according to claim 1, characterized in that: There are two threaded holes (3), and the two threaded holes (3) are arranged at intervals.

3. The splitter according to claim 1, characterized in that: The fastening screw (5) is a machine screw.

4. The splitter according to claim 1, characterized in that: The number of the electric wire (4) is one, and the electric wire (4) is any one of the following: a live wire, a neutral wire, and a ground wire.

5. The splitter according to claim 1, characterized in that: The number of the electric wires (4) is more than two, and the more than two electric wires (4) are of the same type and are any one of the following: a live wire, a neutral wire, and a ground wire.

6. The splitter according to claim 1, characterized in that: The electric wire (4) is a multi-strand conductor.

7. The splitter according to claim 1, characterized in that: The main line U-shaped opening (21) and the branch line U-shaped opening (22) are of the same size, or the main line U-shaped opening (21) is larger than the branch line U-shaped opening (22).

8. The splitter according to any one of claims 1 to 7, characterized in that: The splitter also includes a housing (6) covering the junction block (1), the housing consisting of an upper cover (61) and a lower cover (62).

9. The splitter according to claim 8, characterized in that: A fixing groove (64) matching the wiring block (1) is provided inside the housing (6).

10. The splitter according to claim 8, characterized in that: Wire guide openings (63) corresponding to the wires (4) are provided on both sides of the housing (6).

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