CN215266856U - Connector lug of power bus duct - Google Patents

Abstract

A lug for a power busway, comprising: first electrode (1), second electrode (2), backup pad (3), wiring board (4), casing (5) and two end covers (6), first electrode (1), second electrode (2) and backup pad (3) all are located the inside of casing (5), first electrode (1) and second electrode (2) are all protruding and alternate segregation from a side of backup pad (3), another side of wiring board (4) follow backup pad (3) is protruding, casing (5) and end cover (6) all are the drum shape, the both ends of casing (5) have external screw thread (51), end cover (6) have internal thread (61), external screw thread (51) at casing (5) both ends mesh with internal thread (61) of two end covers (6) respectively. The connector lug not only has good waterproof performance, but also can realize stable electric connection, thereby ensuring the normal operation of a power supply bus system.

Description

Connector lug of power bus duct

Technical Field

The utility model relates to a connector lug especially relates to a connector lug of power bus duct.

Background

With the emergence of modern engineering facilities and equipment, the power consumption of various industries is increased rapidly, particularly, the appearance of numerous high-rise buildings and large-scale factory workshops, the traditional cable serving as a power transmission lead cannot meet the requirement in a large-current transmission system, and the parallel connection of multiple cables brings inconvenience to on-site installation, construction and connection. The plug-in type bus duct is produced as a novel distribution wire, compared with the traditional cable, the plug-in type bus duct fully shows the superiority of the plug-in type bus duct when large current is transmitted, simultaneously, because of adopting a new technology and a new process, the contact resistance and the temperature rise of the joint of two end parts of the bus duct and the plug-in part of a branching port are greatly reduced, and high-quality insulating materials are used in the bus duct, thereby improving the safety and reliability of the bus duct and improving the whole system.

In order to connect with a power supply line, in an actual use process, a connector lug is generally adopted to connect a power bus duct with the power supply line. At present, most of schemes are that a shell of a power bus duct and a shell of a connector lug are fixed through screws.

However, the above method requires screw holes on the housing, which results in poor sealing performance and low waterproof performance. In addition, the thermal expansion coefficient of metal is large, and when the continuous service life is long, the cable core in the power bus duct can be precooled and contracted, so that the cable core of the power bus duct can be separated from the electrode, and the connection stability can be affected.

SUMMERY OF THE UTILITY MODEL

The utility model discloses technical scheme is to above-mentioned condition, and in order to solve above-mentioned problem and provide a power bus duct's connector lug, the connector lug includes: first electrode, second electrode, backup pad, wiring board, casing and two end covers, first electrode, second electrode, backup pad and wiring board all are formed by conducting material, casing and two end covers all are formed by insulating material, first electrode, second electrode and backup pad all are located the inside of casing, first electrode and second electrode are all protruding and the alternate segregation from a side of backup pad, the wiring board is protruding from another side of backup pad, casing and end cover all are the drum shape, the both ends of casing have the external screw thread, the end cover has the internal thread, the external screw thread at casing both ends respectively with the internal thread toothing of two end covers.

Further, the wiring board has a wiring hole in the middle thereof.

Further, the first electrode has a first threaded hole and the second electrode has a second threaded hole; the connector lug further includes: a screw simultaneously engaged with the first threaded hole of the first electrode and the second threaded hole of the second electrode.

Further, the width of the outer surface of the first electrode is larger than that of the inner surface, and the width of the outer surface of the second electrode is larger than that of the inner surface.

Further, the length of the first electrode is equal to that of the second electrode, and the inner surface of the first electrode is parallel to that of the second electrode.

Further, the outer diameters of the two ends of the shell are smaller than the outer diameter of the middle of the shell, and the outer diameter of the end cover is smaller than the outer diameter of the middle of the shell.

Further, the case has a plurality of reinforcing ribs protruding from an inner surface of the case, and the reinforcing ribs are in a circular ring shape.

After the technical scheme is adopted, the utility model discloses an effect is: the connector lug with the structure has good waterproof performance, and can realize stable electric connection, thereby ensuring the normal operation of a power supply bus system.

Drawings

Fig. 1 is a schematic view of a junction box according to the present invention;

fig. 2 is an internal view of a junction box according to the present invention;

fig. 3 is a cross-sectional view of a connection box according to the present invention;

fig. 4 is a schematic view of a usage state of the connection box according to the present invention;

fig. 5 is a sectional view of a connection box according to the present invention in a use state.

Detailed Description

It is specifically noted that the terms "first", "second" and "third" in the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. All directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture, and if the specific posture is changed, the directional indicator is changed accordingly.

The technical solution of the present invention is further described below by way of examples:

the utility model provides a connector lug of power bus duct, it is shown in combination fig. 1-3, the connector lug includes: the electrode assembly comprises a first electrode 1, a second electrode 2, a support plate 3, a wiring board 4, a shell 5 and two end covers 6, wherein the first electrode 1, the second electrode 2, the support plate 3 and the wiring board 4 are all made of conductive materials, the shell 5 and the two end covers 6 are all made of insulating materials, the first electrode 1, the second electrode 2 and the support plate 3 are all located inside the shell 5, the first electrode 1 and the second electrode 2 are both protruded from one side face of the support plate 3 and are separated from each other (namely, a gap is formed between the first electrode 1 and the second electrode 2), the wiring board 4 is protruded from the other side face of the support plate 3, the shell 5 and the end covers 6 are both in a cylindrical shape, the two ends of the shell 5 are provided with external threads 51, the end covers 6 are provided with internal threads 61, and the external threads 51 at the two ends of the shell 5 are respectively meshed with the internal threads 61 of the two end covers 6.

As shown in fig. 4 and 5, when the connector is used, the power bus duct 100 is inserted into the connector from one end, and the power supply line is inserted into the connector from the other end. The connecting plate of the wire core 101 of the power bus duct 100 is inserted into a gap between the first electrode 1 and the second electrode 2, the first electrode 1 is in contact with one surface of the connecting plate of the wire core 101, the second electrode 2 is in contact with the other surface of the connecting plate of the wire core 101, the shell 102 of the power bus duct 100 is inserted into the shell 5, the shell 102 of the power bus duct 100 is in interference fit with the end cover 6, so that the shell 102 of the power bus duct 100 is fixed with the end cover 6, and the power supply circuit is electrically connected with the wiring board 4.

The shell 5 of the connector lug is fixed with the shell 102 of the power bus duct 100 through the end cover 6, namely, the shell is fixed in a threaded mode, so that a screw hole is not needed, the waterproof performance can be greatly improved, and the sealing performance is good. In addition, the first electrode 1 and the second electrode 2 are respectively contacted with the wire core 101 of the power bus duct 100 along the up-down direction, so that better connection stability can be ensured.

Therefore, the connector lug with the structure has good waterproof performance and can realize stable electric connection, so that the normal operation of a power supply bus system is ensured.

Specifically, with continued reference to fig. 3, the wiring board 4 has a wiring hole 41 in the middle. The electric wire of the power supply wire can be passed through the wire hole 41 and wound around the wiring board 4, thereby forming a stable electrical connection. In another embodiment, a plug may be provided at the end of the power supply line, the plug may be made of a conductive material, and the plug may be inserted into the connection hole 41 to electrically connect the terminal block 4 to the power supply line.

Specifically, with continued reference to fig. 3 and 5, the first electrode 1 has a first threaded hole 11, and the second electrode 2 has a second threaded hole 21; the connector lug further includes: the screw 7, the screw 7 engages with the first threaded hole 11 of the first electrode 1 and the second threaded hole 21 of the second electrode 2 at the same time. Correspondingly, the wire core 101 of the power bus duct 100 is provided with a screw hole, and the wire core 101 can be locked between the first electrode 1 and the second electrode 2 through the screw 7, so that the connection is more stable, and even if the wire core 101 is precooled and shrunk, the wire core 101 cannot be separated from the first electrode 1 and the second electrode 2 at the same time.

More specifically, with continued reference to fig. 1, the width of the outer surface (i.e., the surface facing away from the second electrode 2) of the first electrode 1 is greater than the width of the inner surface (i.e., the surface facing toward the second electrode 2), and the width of the outer surface (i.e., the surface facing away from the first electrode 1) of the second electrode 2 is greater than the width of the inner surface (i.e., the surface facing toward the first electrode 1). That is, the vertical cross section of the first electrode 1 and the vertical cross section of the second electrode 2 are two symmetrical trapezoids, accordingly, the wire core 101 of the power bus duct 100 is provided with a groove with an upper section and a lower section being trapezoids, and the above structure can guide the installation of the first electrode 1 and the second electrode 2.

More specifically, the length of the first electrode 1 is equal to the length of the second electrode 2, and the inner surface of the first electrode 1 and the inner surface of the second electrode 2 are parallel to each other. The first electrode 1 and the second electrode 2 are symmetrical relative to the horizontal plane, so that the stability of up-and-down electrical connection can be ensured.

Specifically, with continued reference to fig. 3, the outer diameters of the two ends of the housing 5 are smaller than the outer diameter of the middle portion of the housing 5, and the outer diameters of the end caps 6 are smaller than the outer diameter of the middle portion of the housing 5. The external diameters of the two ends of the shell 5 and the external diameters of the end covers 6 are reduced, so that the miniaturization of the connector lug is facilitated, and the interference on other parts of a power supply bus system after the end covers 6 are installed is avoided.

Specifically, the case 5 has a plurality of reinforcing ribs 52, the reinforcing ribs 52 project from the inner surface of the case 5, and the reinforcing ribs 52 are annular in shape. The ribs 52 can enhance the compressive strength of the housing 5, and prevent the housing from deforming to cause the first electrode 1 and the second electrode 2 to be displaced.

The above-mentioned embodiments are merely preferred examples of the present invention, and do not limit the scope of the present invention, so all equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.

Claims (7)

1. The utility model provides a lug of power bus duct which characterized in that: the connector lug includes: a first electrode (1), a second electrode (2), a support plate (3), a wiring board (4), a case (5) and two end caps (6), wherein the first electrode (1), the second electrode (2), the support plate (3) and the wiring board (4) are all formed of a conductive material, the case (5) and the two end caps (6) are all formed of an insulating material, the first electrode (1), the second electrode (2) and the support plate (3) are all located inside the case (5), the first electrode (1) and the second electrode (2) are all protruded from one side surface of the support plate (3) and are separated from each other, the wiring board (4) is protruded from the other side surface of the support plate (3), the case (5) and the end caps (6) are all in a cylindrical shape, both ends of the case (5) have external threads (51), and the end caps (6) have internal threads (61), and external threads (51) at two ends of the shell (5) are respectively meshed with internal threads (61) of the two end covers (6).

2. The lug of a power busway of claim 1, wherein: the wiring board (4) has a wiring hole (41) in the middle.

3. The lug of a power busway of claim 1, wherein: the first electrode (1) is provided with a first threaded hole (11), and the second electrode (2) is provided with a second threaded hole (21); the connector lug further includes: a screw (7), said screw (7) engaging both the first threaded hole (11) of the first electrode (1) and the second threaded hole (21) of the second electrode (2).

4. The lug of a power busway of claim 3, wherein: the width of the outer surface of the first electrode (1) is larger than that of the inner surface, and the width of the outer surface of the second electrode (2) is larger than that of the inner surface.

5. The lug of a power busway of claim 4, wherein: the length of the first electrode (1) is equal to that of the second electrode (2), and the inner surface of the first electrode (1) is parallel to that of the second electrode (2).

6. The lug of a power busway of claim 1, wherein: the outer diameters of the two ends of the shell (5) are smaller than the outer diameter of the middle of the shell, and the outer diameter of the end cover (6) is smaller than the outer diameter of the middle of the shell (5).

7. The lug of a power busway of claim 1, wherein: the case (5) has a plurality of reinforcing ribs (52), the reinforcing ribs (52) protrude from the inner surface of the case (5), and the reinforcing ribs (52) have a circular ring shape.

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